[HN Gopher] US Judge invalidates blood glucose sensor patent, op...
       ___________________________________________________________________
        
       US Judge invalidates blood glucose sensor patent, opens door for
       Apple Watch
        
       Author : walterbell
       Score  : 411 points
       Date   : 2025-02-21 05:55 UTC (17 hours ago)
        
 (HTM) web link (www.patentlyapple.com)
 (TXT) w3m dump (www.patentlyapple.com)
        
       | friendzis wrote:
       | Most good inventions are "obvious" in hindsight.
        
         | ljsprague wrote:
         | Like the Blonsky birthing table for instance.
        
         | drannex wrote:
         | This is why patents are Regressive and should be done away
         | with. They no longer protect small-time inventors, only
         | corporations. They stifle all innovation.
        
           | DecentShoes wrote:
           | If they exist, they should be 3 - 5 years. Not 20. That's
           | insane and creates monopolies.
        
             | tombert wrote:
             | At least it's not as terrible as the US copyright system,
             | which is more than 90 years.
        
               | mcny wrote:
               | That should also be three to five years.
        
               | LadyCailin wrote:
               | No, copyrights make sense to be longer. But not "century"
               | long. But something like 15 years for a copyright,
               | renewable each year after for a growing cost, up to 30
               | years total, seems reasonable to me.
               | 
               | The main point being, if you're still making money hand
               | over fist from your book you wrote, or film you made, you
               | can keep the copyright. But at some point, you have to
               | prove it has value by paying for it, with a fast growing
               | price each year after, and still a finite time where the
               | copyright goes away entirely. This prevents dead
               | copyrights where you can't even find the copyright
               | holder, because they died 50 years ago, and the work is
               | obscure, but you want to license it. But if you create
               | some original song or story or whatever, it's totally
               | fair that only you get to make money from that for a very
               | long while.
        
               | lotsofpulp wrote:
               | > The main point being, if you're still making money hand
               | over fist from your book you wrote, or film you made, you
               | can keep the copyright.
               | 
               | > But if you create some original song or story or
               | whatever, it's totally fair that only you get to make
               | money from that for a very long while.
               | 
               | Why is this "very long while" based on how much money you
               | are making, and why would it be different from creating
               | anything else?
               | 
               | The point of taxpayer funded legal and police protection
               | for owners of patents and copyright terms is to
               | incentivize creating something, not to maximize rent
               | seeking abilities for the creator.
        
               | LadyCailin wrote:
               | I don't think preventing you from diluting the brand I
               | created is rent seeking. Creating a work is an
               | investment, which, almost never pays off (think of how
               | many unknown musicians, authors, and artists there are).
               | So when you find something that people like en masse, you
               | should be allowed to reap those benefits. I hardly
               | consider that rent seeking. But the escalating cost
               | prevents actual rent seeking - if your work stops
               | producing value, squatting on it IS rent seeking, and so
               | you have to pay escalating amounts, or relinquish it, and
               | let someone else have a stab at it. You are also allowed
               | to continue to create new derivative works, and you have
               | a huge head start on any future competition, since you
               | have that time limited window. So if you continue to
               | create new value, your timer "restarts" on those new
               | works, so I think that's sufficient incentive to continue
               | creating.
        
               | lotsofpulp wrote:
               | Trademarks protect brands, not copyright and patents.
               | That is a different discussion, but trademarks already
               | work that way, where if the trademark owner keeps using
               | the trademark, then they get to keep it. A creative work
               | is not a brand, the name of the person or company that
               | produced it is a brand.
               | 
               | > if your work stops producing value, squatting on it IS
               | rent seeking
               | 
               | "Producing value" is far too nebulous of a parameter to
               | legally enforce. Again, the point of a copyright and
               | patent is to incentivize creation. At a certain point, it
               | moves from incentivizing to rewarding those that sit on
               | previous accomplishments.
               | 
               | That is why old movies, music, and games are locked away
               | or only accessible via pirating, why TV shows from the
               | 1990s and 2000s have different soundtracks if streamed
               | legally today, and why patent trolls exist.
        
               | tombert wrote:
               | I actually think copyrights could have the exact timeline
               | that patents do right now and I'd be more or less happy;
               | twenty years with a possible ten year extension seems
               | pretty fair to me.
               | 
               | That's enough time to realistically make money off your
               | creation, but not so much time that your great grandkids
               | are also making money off of it.
               | 
               | The fact that a lot of things are invented and patented
               | in the US shows that the comparatively shorter timespan
               | doesn't appear to be _discouraging_ innovation and
               | creativity, and I think that would hold with copyright as
               | well.
        
               | michaelt wrote:
               | Copyright should be shorter, but IMHO it's a lot less bad
               | than patents.
               | 
               | If copyright worked like patents, Disney wouldn't have a
               | monopoly on the Star Wars franchise
               | 
               | Patents tend to be super-broad, so instead they'd have a
               | monopoly on all space-related fictional media.
        
               | toasterlovin wrote:
               | There's a pretty fundamental difference between patents
               | and copyright that I think justifies copyright being
               | longer: a copyrighted work could not exist without its
               | creator. IE, the Beatles catalog would not exist without
               | the 4 Beatles, specifically. However patents are
               | discoveries and can be discovered by other people.
        
               | tombert wrote:
               | I don't disagree, though I would argue that bullshit like
               | "design patents" blur that line somewhat.
               | 
               | Even within patents, you're not supposed to be able to
               | patent a "fact", which is why most math is non-
               | patentable, and it gets into kind of weird territory when
               | you get into stuff like algorithms: is an algorithm part
               | of mathematics and therefore a fact and therefore non-
               | patentable? or is it closer to an invention and
               | engineering, and therefore should be patented? Or is
               | coding "creative" enough to where we should actually be
               | copyrighting algorithms?
               | 
               | I have no idea the answer to that question, or where the
               | line should be drawn (though I gravitate towards the
               | "math" side).
               | 
               | I don't know where I'm going with this; intellectual
               | property law is weird.
        
               | toasterlovin wrote:
               | Yeah, as in all things, the categories start to blur at
               | the edges. Most algorithms seem like mathematical
               | discoveries to me, whereas the source code for a piece of
               | software has pretty clear corollaries to copyrighted
               | works like novels (including passing the test that I
               | propose: it could not exist without it's creator).
               | 
               | I kind of think that patents should not exist. I'm not a
               | scholar in the area, but I am not aware of good evidence
               | that, without patents, we would be bereft of the many
               | inventions of human history and especially the last 200
               | years. And actually, the open source movement
               | demonstrates that there is a very strong human impulse
               | that will create and invent things without material
               | recompense. My reading of patent history is that people
               | who were inventing things anyway wanted a way to profit
               | from it, not that there was a lack of invention and
               | patents were arrived at as a solution to that problem.
               | 
               | Perhaps someone could object that companies are
               | responsible for a lot of invention and they need to be
               | incentivized in a way that individual inventors do not.
               | But I'm not convinced that making a better mousetrap
               | isn't enough of an incentive. After all, companies spend
               | an incredible amount of money on sales and marketing
               | (usually a larger line item than R&D on a company's
               | income statement) and neither of those gives you a
               | legally enforced competitive advantage.
               | 
               | I think the best argument for patents is to encourage
               | drug discovery, since the costs are enormous due to the
               | testing requirements. But if the main cost is in testing,
               | then perhaps the solution is to require that copycat
               | medications also go through the testing process, at least
               | for some period of time. Or just have patents for drugs
               | but not for other things. Or just have the government
               | engage in drug discovery and validation directly
               | (normally I'm against the government doing stuff, but I'm
               | not convinced that the lack of a profit motive would be
               | worse than the presence of a profit motive when it comes
               | to drug discover).
        
             | varjag wrote:
             | An R&D cycle itself can be 5 years, a 1-2 year patent
             | approval time is typical. Industrializing research for
             | production is at least a year, not to mention finding a
             | market fit. And you are supposed to recoup all that in 3-5
             | years? Just tooling amortization can take that much.
        
           | brookst wrote:
           | Lots of small companies only get funding because investors
           | believe the IP will be worth something even if the company
           | fails. I'm not wild about our current patent situation, but
           | we have to recognize that a less restrictive recision would
           | impact small business pretty hard.
        
             | mplewis wrote:
             | I don't care about the impact on small business. I care
             | about the impact on real people being able to access life-
             | saving technology.
        
             | bawolff wrote:
             | Shoe goes on both feet though. Lots of companies are not
             | viable due to the legal burden of one small neccesary part
             | being patented.
        
               | brookst wrote:
               | For sure. It's complicated, and it's different people and
               | companies when you get to the specifics.
        
               | survirtual wrote:
               | It is not complicated. Patents are regressive instruments
               | of the rich to shackle minds and generate artificial
               | scarcity over abundant goods.
               | 
               | It is a mechanism of slavers and connected lineages, and
               | completely puts of a boot on the neck of unconnected
               | innovators, which are abundant in today's age.
               | 
               | They must be abolished.
        
               | brookst wrote:
               | So if you invent something you're cool with a giant
               | company just stealing it and marketing it?
        
               | IsTom wrote:
               | In the current system if a giant company just steals
               | something, will you be able to last through years of
               | legal proceedings while they're the ones reaping the
               | profits?
        
               | abduhl wrote:
               | Willful patent infringement provides for treble damages
               | based on damages that are often determinable from the
               | infringer's sales/profits and provides for recoupment of
               | attorney's fees. If you have a truly patentable idea then
               | the juice of attorneys fees is often worth the risk-
               | adjusted squeeze of litigation.
        
               | polymatter wrote:
               | But that happens anyway. Patent litigation is expensive
               | and time consuming and is far more often used to punch
               | down, regardless of merits.
               | 
               | The fairy tale of the solo patent holder fighting off
               | giant mega corporations is worthy of a Hallmark movie and
               | just as realistic.
        
               | curiouscavalier wrote:
               | I'm not following the "unconnected" part. There are
               | definitely problems with our patent system (referring to
               | US), especially around software, but in my experience
               | examiners are indifferent to your background and lineage
               | (though not indifferent to their own status at USPTO).
               | There is absolutely a monetary barrier to entry on using
               | a lawyer to draft your patent application, but I feel
               | like that's more an issue of private law firms than
               | patents in general. Though I'm sure others might have
               | comments on how those intertwine.
               | 
               | But filing fees, etc (ie those things set by the USPTO)
               | are really quite reasonable imo. Strictly speaking you
               | don't have to use a lawyer to file (I know that can be a
               | minor concession in the landscape of practical success).
               | Maybe you can clarify what you mean by "connected" vs
               | "unconnected"in this case? I'm missing how patent law
               | directly related to connections/lineage beyond what
               | sister comments have said re: ability to litigate or be
               | patent trolls. But I think that's the point of the sister
               | comment on it (at least ideally) cutting both ways.
        
           | procaryote wrote:
           | The original point of a patent is a good one: document your
           | work publicly and in return get a window of time to profit
           | from said work. It was intended to improve innovation by
           | making people not hide their work.
           | 
           | It wasn't really designed for people patenting vague
           | concepts, math or ideas.
           | 
           | If you build a better mousetrap, a patent is pretty good. If
           | you have a vague idea you might show ads in elevators, you
           | should A: just be shot, and B: not get a patent
        
             | codedokode wrote:
             | But today with software you can publish just a generic
             | description and do not disclose actual algorithms and
             | formulas, so there is no value for everyone else. For
             | example, you could patent a program that "chooses the best
             | investment options using AI" without describing any details
             | even if you don't know how to actually implement this.
             | 
             | (Well after I posted this comment you can't anymore)
        
               | matsemann wrote:
               | "Add something to a digital shopping cart", "Minigames on
               | a loading screen". If I can replicate it without reading
               | any details in your patent, it's not patent worthy.
        
               | xienze wrote:
               | > For example, you could patent a program that "chooses
               | the best investment options using AI" without describing
               | any details even if you don't know how to actually
               | implement this.
               | 
               | That's not true. I have several issued US patents and
               | while you don't publish the code, you certainly have to
               | disclose enough high level details that another person
               | versed in the art would be able to implement it.
        
             | pembrook wrote:
             | Patents come from a quaint time when startup capital was
             | non-existent.
             | 
             | Today, they are simply a giant anchor on the speed of
             | innovation.
             | 
             | The software world has flourished with effectively very
             | little patent protection and very lax IP enforcement.
             | 
             | And in the hardware world China quickly commoditizes and
             | copies everything, regardless of US patents anyways.
             | 
             | The only real moats in modern capitalism come from talent,
             | marketing, distribution, and regulation.
             | 
             | Patents are now just a weaponized form of regulation useful
             | for kneecapping domestic competitors. They hurt the local
             | economy more than helping it.
        
             | m0llusk wrote:
             | No, this has had extensive research. Patents slowed down
             | both inventors and industries deploying new technologies.
             | The story that it would enable a period of time for direct
             | profits turned out to be false. There is more to be made by
             | simply moving forward with adoption of new inventions.
        
           | renewiltord wrote:
           | Well, you can live in that world by observing China. IP
           | doesn't exist. All things are open source. You have to be
           | careful doing things but people still do them and a cheaper
           | product shows up on Aliexpress the next day.
        
         | ikekkdcjkfke wrote:
         | I believe apple is struggling to implement the 5g spec due to
         | patents, how do you square that? Just confuses me
        
           | g_p wrote:
           | A lot of the patents needed to implement mobile standards are
           | designated as "standards essential patents", meaning that the
           | party bringing them up the table in the standards committees
           | needs to disclose them and agree to licence them on a FRAND
           | basis to anyone who asks (fair, reasonable and non-
           | discriminatory).
           | 
           | In many cases there are patent pools you can license that
           | cover large areas of the standards, without needing to
           | negotiate each one individually.
           | 
           | Many very fundamental parts of 4G/ 5G are patented and you'll
           | not be able to get your device to work on the network without
           | those patents, so Apple will have licensed those patents
           | under FRAND for their new C1 modem.
        
         | bawolff wrote:
         | Some are more obvious than others.
         | 
         | I think that is a major problem with patents - all inventions
         | are treated the same. However there is a big difference between
         | something reasonably new that took a decade of r&d work to get
         | right and a tiny change to an existing invention which took a
         | day and is an obvious logical progession from what came before
         | which everyone would have came up with.
        
         | renewiltord wrote:
         | Indeed, therefore if an invention is "obvious" in hindsight it
         | must be good ;)
        
         | tzs wrote:
         | I once attended a patent trial and it was interesting. The
         | defendant claimed the patent was obvious.
         | 
         | The plaintiff had some pretty good evidence that it was in fact
         | not obvious:
         | 
         | * The defendant was one of the largest companies in the field
         | with a very accomplished and impressive R&D department. The
         | plaintiff introduced documents they got from the defendant
         | during discovery where the CEO had called solving the specific
         | problem that the patent solved to be vital to the future
         | existence of their company and made solving it a top priority.
         | Yet they failed to make any progress on it.
         | 
         | * Two of the other largest companies in the field, also with
         | impressive R&D departments, had also been working on this and
         | failed to come up with anything.
         | 
         | The jury found that the patent was obvious.
         | 
         | What I think happened is that both plaintiff and defendant had
         | presentations that explained to the jury what the patent did.
         | Both presentations did a great job of finding a problem from
         | everyday life that was kind of analogous to the problem the
         | patent involved, and translating the patent's solution to that
         | everyday life problem. The presentations made it easy to
         | understand the gist of what the patent did.
         | 
         | There's a natural tendency to mistake easy to understand for
         | obviousness, and I think that by explaining the invention in a
         | way that made it easy to understand it also made the jury think
         | it was obvious.
         | 
         | But if you don't explain the invention in a way that the jury
         | can understand how are they supposed to be able to make
         | decisions?
         | 
         | This reminds me of college. Many a time I'd read some theorem
         | named after a mathematician and think "how the heck does this
         | obvious theorem get named after someone?". The answer is that
         | it wasn't at all obvious when that mathematician proved it 400
         | years ago. I'm seeing it after 400 years of people figuring out
         | how to present the subject in a way that makes that theorem
         | obvious.
         | 
         | That reminds me of a classic math joke: A professor says "It is
         | obvious that" and writes an equation. Then he pauses, and says
         | "...wait, is that obvious?". He goes to another board and
         | starts deriving the equation, not saying anything while doing
         | this. After 20 minutes he had gotten it, says "I was right! It
         | is obvious!" and goes back and resumes his lecture.
        
         | jjk166 wrote:
         | The patent law definition of obvious is different from the
         | common understanding.
         | 
         | Specifically, it only counts if it was obvious before the
         | patent filing to a person of ordinary skill. It's actually
         | really hard for a patent claim to be rejected for obviousness.
         | A poking stick for pressing buttons on a TV without getting up
         | counts as a non-obvious invention.
        
       | whycome wrote:
       | Final decision:
       | https://www.bloomberglaw.com/public/desktop/document/USPTOPT...
        
       | shakna wrote:
       | 12 of the 23 claims invalidated by being "obvious", in light of
       | previous patents.
       | 
       | The rest invalidated against Apple, through "alternative claim
       | construction". That is, Apple's reading of the patent and its
       | specific claims, showed it was narrower in scope than their
       | particular usage.
       | 
       | None of this seems really surprising, and whilst it does open the
       | door for Apple, it probably doesn't much open the door for other
       | implementations to flourish - not without a lawyer guiding your
       | particular tech choices.
        
         | pjc50 wrote:
         | The patent: https://patents.google.com/patent/US10517484B2/en
         | 
         | Note how similar this is to the pulse oximeter, which was
         | invented in Japan in 1972 and patented in the US in 2004.
         | 
         | https://www.nihonkohden.com/technology/aoyagi.html
         | 
         | https://patents.google.com/patent/US20050049469A1/en
        
           | oldgradstudent wrote:
           | > Note how similar this is to the pulse oximeter, which was
           | invented in Japan in 1972 and patented in the US in 2004.
           | 
           | How could an invention from 1972, which I assume was
           | publically disclosed around that time, be patented in 2004?
           | 
           | Were the details kept secret for 32 years?
        
             | jolmg wrote:
             | It's the same person in both patents, Takuo Aoyagi. You can
             | register a patent in separate jurisdictions, because
             | they're separate jurisdictions.
        
               | oldgradstudent wrote:
               | You can, but a patent is still limited to around 20
               | years. How can a 1972 invention be still be patented in
               | 2004?
        
               | SSLy wrote:
               | Because the USAnian companies kept lobbying to keep the
               | Patent Office working that way.
        
               | nozzlegear wrote:
               | > USAnian
               | 
               | Do you mean American? Or US and Asian?
        
               | ddulaney wrote:
               | Often used by people who are American (from the Americas)
               | but not from the US. Canada, Mexico, Brazil, Columbia,
               | and the rest of North and South America.
        
               | HappySweeney wrote:
               | Canadians don't use that.
        
               | Snoozus wrote:
               | They might start soon
        
               | ThatMedicIsASpy wrote:
               | This is the first time I have seen this in my life.
        
               | crazygringo wrote:
               | No it's not.
               | 
               | In English, American means from the US, and there's no
               | word to refer to an inhabitants of the Americas (both
               | continents combined). You can say North American or South
               | American if you want, though. Since those are continents.
               | 
               | You won't find "USAnian" in any authoritative published
               | dictionary, not even the OED:
               | 
               | https://www.oed.com/search/dictionary/?scope=Entries&q=US
               | Ani...
        
               | TheSpiceIsLife wrote:
               | Urban dictionary has an entry from 2007
               | 
               | https://www.urbandictionary.com/define.php?term=usanians
               | 
               | And anyway, official dictionaries are largely historical
               | records, not authoritative sources for living languages.
               | Words mean what people who use them intend them to mean.
        
               | crazygringo wrote:
               | Parent said "often used".
               | 
               | It's not.
               | 
               | Anyone can put anything in Urban Dictionary, c'mon.
               | Nobody said _no one_ has uttered the term before.
               | 
               | If something is "often used", it winds up in
               | dictionaries, with a lag of only a few years.
        
               | TheSpiceIsLife wrote:
               | It is in dictionaries, at least two.
               | 
               | https://en.m.wiktionary.org/wiki/Usanian
               | 
               | I've heard or read the term at least once or twice along
               | the way, I've even muttered it myself.
               | 
               | It might not ever rise to a common enough usage that the
               | big dictionaries list it, or maybe it will.
               | 
               | I probably wouldn't say it's frequently used, but
               | probably not rarely either.
        
               | TeaBrain wrote:
               | The six references provided in that entry are all obscure
               | and none are dictionaries.
        
               | genewitch wrote:
               | Can I ask what the point of this thread is? Is it because
               | of the single word "often"?
               | 
               | Seems like a waste of talent and energy.
        
               | TeaBrain wrote:
               | The digressions started with the first mention of the
               | term in question by SSLy, not just the descriptor you
               | mentioned. That user was probably pointlessly baiting,
               | knowing that the nonstandard term would set someone off,
               | which has led to the digressions that followed.
        
               | SSLy wrote:
               | I've been using that term on and off. This was the first
               | time someone came forward saying it's incorrect. I don't
               | disagree with your assessment of my intentions, but it
               | wasn't that usage, it was the politics part.
        
               | TheSpiceIsLife wrote:
               | By your definition of _dictionary_. Again, words mean
               | what people who use them intend them to mean. Urban
               | Dictionary and Wiktionary are both dictionaries as far as
               | I 'm concerned.
               | 
               | Anyway, Meriam Webster has United-Statesian
               | https://www.merriam-
               | webster.com/dictionary/United%20Statesia...
               | 
               | How do you cope with Modern English previously never
               | having been a language anyone spoke or wrote?
        
               | TeaBrain wrote:
               | From what I've seen, it's mostly used by Americans who
               | are trying to be edgy.
        
               | lucasban wrote:
               | Doing a bit of digging online, while there is evidence
               | that /some/ people use it, it appears to be very limited.
               | I understand the desire some people have for an
               | unambiguous English term to refer to things from the US
               | separately from those of the Americas in general, and see
               | the value in doing so. Personally, as a native English
               | speaker, I find USAnian to be clunky - maybe someone has
               | thought (or will think) of a term that feels more
               | natural. It feels analogous to the push from (largely
               | English-speaking) activists in the US to use the term
               | "latinx", much of the intended audience doesn't run into
               | issues with the current terminology and aren't looking
               | for a new term, and the term doesn't feel natural to
               | existing speakers.
        
               | anotherhue wrote:
               | Are we not allowed say Yanks anymore?
        
               | mh- wrote:
               | Yank here, you've certainly got my blessing. Can't
               | imagine someone being bothered by it. I think of it as a
               | demonym just like Brits or anything else.
        
               | ASUfool wrote:
               | Those with deep Confederate roots might be bothered.
               | 
               | Or Red Sox fans.
        
               | SSLy wrote:
               | Is the term also fine to use when trying to include the
               | BIPOC citizens?
        
               | lucasban wrote:
               | You can say what you want, whether or not people will
               | understand what you mean or interpret it the way you
               | intended is the more relevant question, in my opinion.
        
               | johnmaguire wrote:
               | I grew up in the US and sometimes refer to us as USian,
               | especially if I want to be clear I'm not referring to
               | Mexico/Canada. I've never seen USAnian.
        
               | SSLy wrote:
               | Thanks for the clarification, I'll switch to the other
               | term in the future.
        
             | nicoburns wrote:
             | Because the patent system is broken
        
             | pjc50 wrote:
             | See discussion on first-to-file:
             | https://news.ycombinator.com/item?id=43125638
             | 
             | The "clock" does not start when the invention happens,
             | which is anyway a very hard thing to pin down. But as you
             | say, it creates very counter intuitive results.
        
               | NotYourLawyer wrote:
               | 1. That's not how first-to-file works. It's a sadly
               | common misunderstanding.
               | 
               | 2. This case was from way before first-to-file even went
               | into effect anyway.
        
             | NotYourLawyer wrote:
             | I haven't looked at the patent documents, but I'd bet money
             | it's not the same. The later US patent is probably for an
             | improvement on the original device.
        
             | theli0nheart wrote:
             | It must have been different in some key way, or the 1972
             | invention lacked several key improvements that the 2004
             | patent claimed.
        
       | derektank wrote:
       | Was the Omni MedSci patent used in any existing commercial
       | products?
        
       | medhir wrote:
       | Is this patent the only thing that is holding them back?
       | 
       | Or are there still quite a few challenges ahead and this is
       | merely one roadblock removed.
        
       | arijo wrote:
       | You probably can use these physics to measure many other
       | molecules in a continuous non invasive way.
       | 
       | This will be a revolution in personalized medicine.
       | 
       | Ketones next please.
        
         | aitchnyu wrote:
         | A search tells me its for type 1 diabetics. Are there other
         | applications, like keto dieters?
        
           | pbmonster wrote:
           | Huge market for endurance athletes. Just like heart rate and
           | blood oxygen, blood glucose is a definitive marker whether
           | you're going to fast or not. Having that information allows
           | you to perform at the very edge your body is capable of
           | performing, without ever exceeding that limit and crashing
           | out.
           | 
           | There have been blood glucose sensors using needles for a
           | long time, and many sports banned them because they are a
           | huge advantage - but they didn't want to de-factor force
           | every athlete to constantly prick an IV under their skin and
           | then run around with it for hours.
           | 
           | Once those come in smart watches, every semi-advanced runner
           | (and those who'd like to feel like one) will need one.
        
             | paulcole wrote:
             | Endurance athletes are a small market and the market for
             | endurance athletes who would benefit from a CGM is even
             | smaller.
             | 
             | > every semi-advanced runner (and those who'd like to feel
             | like one) will need one
             | 
             | This, however, is the truth. Every semi-advanced runner
             | (and wannabe) knows that they need to run more, run slower
             | on most of their runs, run fast occasionally, and eat well
             | in order to improve their performance. But they'll buy
             | literally anything that might offer them an "edge" instead.
        
               | pbmonster wrote:
               | > Endurance athletes are a small market and the market
               | for endurance athletes who would benefit from a CGM is
               | even smaller.
               | 
               | It's not that small. Garmin made billions in revenue
               | here, expanding it on the process. Most of their
               | customers don't really need blood oxygen either, but they
               | all have it anyway.
        
           | arijo wrote:
           | Many chronic illnesses are currently being researched as a KD
           | treatment target.
           | 
           | Continuous ketones measurement is a big deal.
        
       | tehjoker wrote:
       | does anyone with relevant scientific background know how accurate
       | this kind of sensor could potentially be?
        
         | m463 wrote:
         | that's an interesting question.
         | 
         | there's sort of a usefulness threshold, and then there's a "can
         | calculate insulin" threshold.
         | 
         | I think a LOT of people could benefit from plain high, medium,
         | low with the understanding that you wouldn't make insulin
         | decision based on it.
        
           | GeekyBear wrote:
           | I have a friend who tried one of the invasive continuous
           | glucose monitors and finding out which common foods spiked
           | their blood sugar the most and the least was useful.
        
         | bythreads wrote:
         | Pretty accurate since this works of averages - discarding
         | outliners and norming get you close to the actual number pretty
         | quickly - also with glucose your're interested in fluctuations
         | more than absolutes
        
         | rrrrrrrrrrrryan wrote:
         | Probably accurate enough to learn how your body responds to
         | different foods and exercise, to help prevent pre-diabetes, to
         | help with general weight loss, and to help endurance athletes
         | in their training.
         | 
         | But there is no universe it will be accurate enough to make
         | insulin dosing decisions. Insulin dependent diabetics will
         | require CGMs or finger pricks for another couple decades.
        
         | UomoNeroNero wrote:
         | I manage my diabete with a "sensor" (Dexcom), an insulin pump,
         | and a "loop device." I would NEVER use Apple Watch for therapy,
         | and I don't think Apple wants to step into this minefield. BUT
         | I guarantee you that having your glucose level as an
         | (instantaneous/statistical) data point is a game-changer. There
         | are "pre-diabetes" phases where even mild monitoring (and an
         | alert) can be essential. And for those already in the tunnel,
         | knowing you can have an additional "backup" alarm for
         | hypo/hyper is very interesting (though, thinking about it,
         | another alarm... no, better not :-D).
        
       | rasz wrote:
       | Went better than last time when they were stealing Masimo
       | patented tech.
        
       | z3t4 wrote:
       | Petens where invented so that the big companies wouln't steal
       | your ideas and outcompete you in the market. I know that many of
       | the people in this community is against patents, but they are
       | ment to protect you guys in particular. So that your startup have
       | a chanse against the big corporations.
        
         | epicureanideal wrote:
         | Seems like they're mostly accomplishing the opposite these
         | days.
        
         | bawolff wrote:
         | Road to hell is paved with good intentions.
        
         | drannex wrote:
         | Originally intended, not the way they are used now, especially
         | with the costs involved.
        
         | TheDong wrote:
         | I really like the tool for the little guys which requires a
         | $100/hour+ lawyer both to create, and to enforce, and to gain
         | any other benefit out of.
         | 
         | Patents were created not to protect the little man, but with
         | the intent of creating a vibrant commons of knowledge.
         | 
         | Not that the original intent matters at all at this point,
         | we're so far from that that it's only really of interest to
         | historians.
        
           | hgomersall wrote:
           | Where does one find a $100/hour lawyer?
        
             | jamiek88 wrote:
             | 1998
        
         | pjc50 wrote:
         | Since the system was changed from first-to-invent to first-to-
         | file, it's now completely possible for a big corp to copy
         | someone's invention, overtake them in the patent process, and
         | lock them out of being able to patent or use their own
         | invention.
        
           | tzs wrote:
           | That's not how it works. First-to-file (FTF) did not change
           | the requirements for patentability. You still have to have
           | invented the thing you want to patent, and in your scenario
           | Big Corp did not invent the thing.
           | 
           | All FTF changes is what happens when multiple inventors
           | invent the same thing.
           | 
           | Under first-to-invent (FTI) your priority date was the date
           | you conceived the invention _if_ you then worked diligently
           | toward reducing the idea to practice up until you filed your
           | patent application. If you stopped working diligently on
           | reducing the idea to practice and then resumed it, the date
           | you resumed became your new priority date.
           | 
           | What counts as a break in working toward reduction to
           | practice sufficient to reset your priority date? How much
           | documentation do you need to prove you were working
           | continuously on it from your claimed priority date?
           | 
           | Figuring all that out can be expensive and time consuming and
           | often gives results that seem wrong. It's almost random
           | whether the priority date by this method actually matches who
           | seems to morally most deserve the patent.
           | 
           | FTF gives priority to whoever files first. It doesn't produce
           | any worse outcome than FTI and saves a lot of time and money
           | for both the patent office and applicants.
        
         | nmstoker wrote:
         | This is entirely inaccurate (patently so!)
         | 
         | A couple of 30 second Google searches would show how their
         | invention pre-dated the prevalence of big companies by
         | centuries.
        
         | jjk166 wrote:
         | Patents were invented as a way for governments (and really at
         | the time monarchs) to regulate commercial activity and attract
         | skilled craftspeople. Modern patents were a reform of this to
         | stop monarchs from abusing this power as effectively a tax.
         | This starts in Venice in 1474. By the time the US patent system
         | was created, the goal was to promote publication of technical
         | information, rather than it being kept secret. This was a few
         | decades before the first industrial corporations in the US.
        
       | pyaamb wrote:
       | This is great news and I can only hope for something similar to
       | transpire with e-ink patents. _fingers crossed_
        
         | userbinator wrote:
         | Many of those may be actually getting close to expiry if not
         | expired already - the technology is over 20 years old by now.
        
           | unsupp0rted wrote:
           | I remember doing a report in high school chemistry class, 75
           | years ago, on the promise of e-ink technology.
        
             | choeger wrote:
             | You talked about e-ink in high school in 1950?
        
               | pentamassiv wrote:
               | That must have been a typo, sarcasm or trolling. Looking
               | at the users other submissions, they seem to have parents
               | [1], go to the gym [2] and use Tinder [3] which seems
               | unlikely if they are ~90 years old.
               | 
               | [1] https://news.ycombinator.com/item?id=38133254 [2]
               | https://news.ycombinator.com/item?id=39370419 [3]
               | https://news.ycombinator.com/item?id=35006052
        
               | unsupp0rted wrote:
               | It was an exaggeration. High school was decades ago, but
               | it feels like a million years. We thought e-ink tech
               | would be widespread within a handful of years. Little did
               | we know.
        
         | bonestamp2 wrote:
         | interesting, what kinds of things are being held back in the
         | meantime? Or, just price/competition?
        
       | zdw wrote:
       | Note that this isn't the Blood Oxygen sensor (Masimo being the
       | other party in that case), which is still stuck in court.
        
         | jurmous wrote:
         | The blood oxygen sensor does work outside the US
        
           | andriesm wrote:
           | Wow! Really - this is the one patent-restricted feature I was
           | hoping they were going to solve. I'm curious if a decent
           | quality blood oxygen meter could give me additional data
           | about my sleep apnea. I've previously trief several blood
           | oxygen meters ordered from Amazon, and the results were very
           | low accuracy and low confidence, and the only decent ones
           | couldn't log data continuously over time. (At least not when
           | I bought a few different ones a handful of years ago)
        
             | procaryote wrote:
             | Perhaps you could try a Garmin watch or activity band?
             | Afaict they don't have the same geo restriction. They're
             | less smart as smart watches go, but in return they have
             | better battery life
        
             | MartinMond wrote:
             | Did you try the ones from https://getwellue.com/? In my
             | informal testing against "medical-grade" SPO2 monitors they
             | were accurate and they record all night long.
        
             | buddy27 wrote:
             | Oura gives an averaged overnight blood oxygen reading, and
             | gives insight into breathing regularity and any
             | disturbances that it caught.
             | 
             | https://support.ouraring.com/hc/en-
             | us/articles/7328398760851...
        
               | Terretta wrote:
               | > _averaged overnight_
               | 
               | Which is the opposite of what's needed to understand
               | whether scattered short term variations are breathing
               | stops to worry about.
               | 
               | > _regularity_
               | 
               | Their variation feature does mark moments of (selectable
               | low/med/high) variance, without the medically diagnostic
               | information that seems to get patent claimants going.
               | 
               | One would then need to get a pre-ban Apple Watch (as it's
               | a software toggle and the ban was not retroactive watches
               | registered before that date continue to support the
               | feature) or other device to monitor and record the data
               | one's doctor needs.
        
             | eps wrote:
             | Pretty much any modern Garmin will do that really well.
        
             | genewitch wrote:
             | I have an amazfit bip 2 or 3 and iirc I can enable spo2
             | monitoring "constantly" I don't because mine is always 99
             | so I shut it off and just test manually.
             | 
             | It tracks movement and breathing during sleep. I think it
             | now tracks snoring too, wakeups, rem/deep sleep times, and
             | steps, heart rate, and stress levels.
             | 
             | The app is called zepp and I don't know if any of this is
             | exportable but I only care about a cheap watch that has
             | heartrate on it.
        
           | unsupp0rted wrote:
           | Mine doesn't seem to. I have a US Apple Watch that I use
           | outside the US all the time. Non-US account/app store too.
        
             | plausibility wrote:
             | My understanding is it's like iPhone purchased in Japan
             | always having the shutter noise no matter where they're
             | taking a picture.
             | 
             | Apple Watches purchased and activated in USA after the
             | patent lawsuit cut off date won't have the feature enabled,
             | even if you travel or move.
        
               | gwervc wrote:
               | That's plain wrong. iPhone uses sim data or something to
               | enable/disable that noise. Source: myself with two
               | iPhones bought in Japan and used both there and in the
               | EU.
        
               | kalleboo wrote:
               | This is a recent change, until about 3 iPhone models ago
               | it worked how GP described it
        
             | jurmous wrote:
             | I was reading it is based on the part numbers and it is a
             | different number for US bought watches.
             | 
             | If number ends with LW/A you will not have it
             | 
             | https://support.apple.com/en-us/120359
        
               | tylrprtr wrote:
               | This is correct. You could order a Series 10 from a
               | Canadian source and have a working blood oxygen sensor.
        
               | tedd4u wrote:
               | Can verify this works. Use reship.com to get a Canadian
               | mailing address and have it forwarded.
        
           | bqmjjx0kac wrote:
           | I'm in the US and I totally forgot about the blood oxygen
           | patent fiasco. I have an Apple Watch Series 8 and it
           | continues to work. Maybe it's only newer models that are
           | affected?
           | 
           | (Aha, this article says it's Series 9 and Ultra 2 that are
           | affected:
           | <https://www.tomsguide.com/wellness/smartwatches/apple-
           | wins-p...>.)
        
         | adrr wrote:
         | Blocked by the International Trade Commission from being
         | imported which is why watches prior to block still work. Patent
         | case ended up in a hung jury trial with all but 1 juror siding
         | with Apple.
        
       | bschne wrote:
       | Aside: I was surprised to read "dental caries" in the list of
       | things detectable through similar methods in the court filing
       | screenshot in this post. Is that about a device that could
       | optically detect caries from tooth surfaces through similar
       | principles?
        
         | schiffern wrote:
         | If you've ever put a bright light up to your teeth in a mirror,
         | it's pretty incredibly how translucent dental enamel actually
         | is, and the level of internal detail you can see just by eye.
        
           | nkrisc wrote:
           | That's how dentists check for issues as well: they very
           | briefly shine a light through your teeth and capture a
           | picture the resulting shadow.
        
             | genewitch wrote:
             | "Light"?
             | 
             | Most light won't make electrons frolic in your body.
        
           | JoshTko wrote:
           | Startup opportunity for a light based 3rd tooth scanner?
        
             | genewitch wrote:
             | Check if glidewell has a patent on it first. They have the
             | smallest intra-oral scanner I've seen, and I saw it 12
             | years ago. It's like a cigar. I may be wrong and they
             | didn't make the scanner.
        
           | hombre_fatal wrote:
           | Also a nice way to realize how cracked your teeth might be.
        
         | benmccann wrote:
         | Check out https://www.perceptive.io/
        
       | oliyoung wrote:
       | Is this a software or hardware patent, because afaics the sensors
       | on the newer Watches would already support this so it could just
       | be a software update?
        
       | codelion wrote:
       | Yeah, the 20-year limit is definitely a thing. Maybe the 2004
       | patent was for some specific _improvement_ to the original pulse
       | oximeter tech? Patent law is tricky like that.
        
       | tzs wrote:
       | I find it hard to believe that this patent was keeping Apple from
       | adding blood glucose sensing. Yes, I know a patent on blood
       | oxygen level sensing stopped Apple, but there is a huge
       | difference between oxygen level sensing and glucose sensing.
       | 
       | For oxygen sensing there are numerous readily available
       | inexpensive stand-alone sensors available at any drug store or
       | online. They are non-invasive and painless. Yes, a continuously
       | wearable sensor would be better for some people but most people
       | don't need that. Accordingly it is something that while nice
       | wouldn't really sell a lot of watches, and so something that
       | might not be worth licensing if it is under patent.
       | 
       | Glucose sensing on the other hand is a literal pain to test and
       | has ongoing costs due to consumables used for the testing. Non-
       | invasive painless glucose sensing on a watch is a feature that
       | would sell a lot of watches. I think demand would be high enough,
       | even if they have to raise prices, that it would easily be worth
       | it.
        
         | analog31 wrote:
         | I work in a related area. Non-invasive blood glucose has been a
         | holy grail for analytical science, for decades, and remains a
         | brutally difficult problem.
        
           | crazygringo wrote:
           | Yup. But there's hope that computational techniques can
           | extract the signal from the noise.
           | 
           | If they can it'll be huge. Maybe even Ozempic-huge. There's a
           | theory of weight loss that you can objectively manage your
           | weight by never allowing your blood sugar to go over a
           | certain level.
        
             | bubblethink wrote:
             | >There's a theory of weight loss that you can objectively
             | manage your weight by never allowing your blood sugar to go
             | over a certain level.
             | 
             | That doesn't work, even if it were true. You can also
             | manage your weight by never allowing the weight on the
             | scale to go over a certain level.
        
               | crazygringo wrote:
               | What do you mean it doesn't work? How do you know?
               | 
               | And no -- your weight on the scale varies drastically
               | with water levels and food in the gut. By up to five
               | pounds. It is useless for figuring out if you can eat
               | another bite of rice.
               | 
               | While glucose levels are literally minute-by-minute.
               | They're fine-grained enough to actually tell you when to
               | eat more and when to not.
        
               | ac29 wrote:
               | I think the point was that it is easier said than done.
               | 
               | Losing weight is simple in theory, you can just eat less.
               | In practice, eating less is very hard for some people.
               | Having real time glucose information isn't going to help
               | those people.
        
               | crazygringo wrote:
               | Actually, it may _very well_ help those people.
               | 
               | Losing weight is hard because it can be incredibly
               | difficult to "just eat less" _by the right amount_.
               | 
               | If you "eat less" too little, you won't lose weight.
               | While if you "eat less" too much, your health suffers and
               | willpower becomes too difficult.
               | 
               | And counting calories doesn't work well if your calorie
               | needs vary per-day, which nearly everyone's does -- how
               | much did you walk, what temperature were the rooms you
               | were in, etc.
               | 
               | The idea is that real time glucose information will allow
               | you to "eat just right" -- never eating so little that
               | willpower becomes an issue, but never so much that you
               | gain weight (or fail to lose weight).
               | 
               | You shouldn't be so dismissive of the idea.
        
             | RandomUser4976 wrote:
             | Nonsense. Tell this to humans that die when their blood
             | glucose is insanely high (500mg/dl), go into DKA and they
             | are SKINNY!!! You're suggesting 20 calories can make you
             | obese because it raises blood glucose lol! 3-5 grams (12-20
             | calories) of a mild-glycemic index carbohydrate can send
             | your blood glucose well above 120mg/dl and you would not
             | gain weight because of an extra 12-20 calories.
             | Additionally, 1,200 calories from fat (133 grams of fat)
             | will not spike your blood glucose until 5-12 hours later
             | and you you can gain weight, but that signal is lost
             | because the rise in blood glucose happens 1-3 meals, or
             | even the next day after eating the high fat meal. Blood
             | glucose is VERY important but not predictive of weight.
             | Diet, (the amount and macro composition of calories) is
             | predictive of weight and exercise is predictive of weight.
             | The are other factors, but those are the main predictors.
        
               | crazygringo wrote:
               | > _Tell this to humans that die when their blood glucose
               | is insanely high (500mg /dl), go into DKA and they are
               | SKINNY!!!_
               | 
               | We're not talking about people with underlying health
               | conditions. Exceptions don't invalidate a general
               | principle.
               | 
               | > _You're suggesting 20 calories can make you obese
               | because it raises blood glucose lol!_
               | 
               | Nothing "lol" about it. An extra 20 calories, 20 times a
               | day, every day for months and years, above your caloric
               | needs, is yes quite likely to make you obese. How else do
               | you think most people get obese?
               | 
               | > _fat... will not spike your blood glucose until 5-12
               | hours later_
               | 
               | And you can become aware of those patterns. You will
               | know, for example, not to eat anything else during that
               | window. Or learn to eat fat in gradual amounts, rather
               | than large amounts in a single sitting.
               | 
               | > _Blood glucose is VERY important but not predictive of
               | weight._
               | 
               | You seem quite confident about that. You're also quite
               | possibly wrong. The underlying logic is pretty sound: we
               | gain weight when our blood sugar goes up and therefore
               | our insulin goes up to remove the sugar from the
               | bloodstream and, eventually, store it as fat.
        
             | analog31 wrote:
             | Indeed, there's always a hope that more advanced
             | computation will crack this nut in the future. That's been
             | a constant for a quarter century too.
        
         | paulcole wrote:
         | > Glucose sensing on the other hand is a literal pain to test
         | 
         | I'd be hard-pressed to believe that someone trying the newest
         | Dexcom G7 CGM would find it more discomforting than a mosquito
         | bite. And for that literal pain you get 10 days of constant
         | readings on your phone.
         | 
         | > I think demand would be high enough, even if they have to
         | raise prices, that it would easily be worth it.
         | 
         | This is probably correct but I don't think many non-diabetic
         | people would see an actual benefit from CGM data. It's the kind
         | of thing people love to think is useful but in reality it'll be
         | just one more thing to ignore.
        
           | JoshTko wrote:
           | The market is likely for folks that are unaware that they
           | have some glucose issue.
        
             | paulcole wrote:
             | I agree with the idea that the market that this will be
             | sold to is people who believe they will benefit from CGM
             | data.
             | 
             | My point is that CGM data is very very very unlikely to
             | change behavior in the overwhelming majority of people.
        
               | genewitch wrote:
               | If apples app explains everything simply and factually,
               | maybe users can set alerts if a meal spikes tbem more
               | than a meal normally does. I don't know much about
               | diabetes so flip that around if I said it backward.
               | 
               | I would have probably quit drinking alcohol a lot earlier
               | if I had seen the hell it plays with sugars in your blood
               | iirc.
               | 
               | Sometimes a notification that you did something unhealthy
               | might be enough? Like my watch buzzes if it detects less
               | than X steps in the last hour, tells me to get up. The
               | app tells me I get to sleep too late most days.
               | 
               | If it told me that food I just ate is something I'll have
               | to be careful with...
        
           | sgmoore wrote:
           | > you get 10 days
           | 
           | Isn't that the key point and means Dexcom/Libre would cost
           | you (or your insurance company) several thousands of
           | dollars/pounds/euros/etc every single year. For many people
           | they already have an iphone and just need an Apple watch
           | which could last for several years.
        
             | paulcole wrote:
             | Right... my comment was arguing against the assertion that
             | testing is a literal pain, not a metaphorical pain in the
             | wallet.
             | 
             | Yes, obviously if Apple could figure out how to get
             | accurate BG numbers on an iPhone it would be better than
             | the currently available CGMs.
        
           | spacedcowboy wrote:
           | I have type-1 diabetes, brought on late in life after going
           | through a miserable 2 years of stress after my wife was in a
           | coma due to medical negligence. She came out of it, but the
           | damage was done, she won't recover, and she is a shadow of
           | who she was. Prolonged extreme stress can trigger type-1
           | diabetes, and once you have it, you have it for the rest of
           | your life.
           | 
           | Right now, I'm on glipizide which manages (along with a low-
           | carb diet) the situation, but I need the GCM so I know when
           | this "honeymoon" period (before I start needing insulin)
           | starts to end.
           | 
           | Unfortunately I have an extreme needle phobia too. My
           | insurance doesn't cover the G7, just the G6, so I don't know
           | if it's different, but if I try to apply the G6, my heart
           | rate will massively speed up, I will start to hyperventilate,
           | and typically pass out when I click the button on the
           | applicator. I'm out for only a few minutes, but it's not a
           | pleasant experience... I have to make sure I'm lying on a bed
           | to do it now, after learning the hard way that it's possible
           | to fall when just sitting down, and head wounds don't stop
           | bleeding when you're unconscious.
           | 
           | I would dearly love the ability to measure glucose non-
           | invasively. It's actually nowhere near as bad for me if I
           | don't have to click it myself, but my wife wouldn't
           | understand what to do, and my son is too young for me to feel
           | comfortable asking. Theres no-one else around to help, so
           | sometimes I make a dr appt, for a 10-second "click". Most of
           | the time I just put up with it. The hope is that the phobia
           | starts to diminish, but so far it hasn't, and yes I've tried
           | psychologists.
           | 
           | Every 10 days, and [sigh] as I write, I recall that today is
           | the day. Again.
        
             | lolc wrote:
             | The G7 has a smaller applicator. To me it looks less
             | "needly" than the G6 did. The libre applicator is even
             | smaller. There's less of a need to look at the underside
             | because the applicator is set on the skin without having to
             | pull free the sticker. That could make it easier for you.
             | 
             | But obviously they all have a needle because they need to
             | get something under your skin. Which is I guess what
             | triggers you.
        
               | spacedcowboy wrote:
               | Doesn't really matter what the G7 offers, it's not
               | covered by the insurance :( I was originally on the
               | Libre-3 but they stopped making them (now it's virtually
               | the same thing but called the Libre-3+ and my insurance
               | doesn't offer that either, even though the difference is
               | just in Bluetooth).
               | 
               | So G6 it is. And yeah, the difference between the non-
               | invasive and invasive is what causes the problem. It's
               | weird, I don't have any other phobias, but I found out
               | about this one when we all stabbed our fingers to test
               | our blood-groups in school. Fell off the stool in the
               | lab, 14 stitches in my scalp. Not the last time, either.
        
             | paulcole wrote:
             | I'm T1 as well and the G7 is night and day better than the
             | G6. Total game changer for me.
             | 
             | Hopefully you get access to it soon.
        
           | Aurornis wrote:
           | > I'd be hard-pressed to believe that someone trying the
           | newest Dexcom G7 CGM would find it more discomforting than a
           | mosquito bite.
           | 
           | Not diabetic, but I've tried a set of two of these out of
           | curiosity. The insertion pain is nothing, but having
           | something bonded to your skin with adhesive constantly is
           | kind of a pain.
           | 
           | I also got some irritation at the insertion sites around the
           | 1-week mark, though that might have been because I don't have
           | much fat on that area of my arm.
        
           | officialchicken wrote:
           | Huh? The G7 requires an app on your phone. Being slim and
           | hitting muscle when using any kind of subcutaneous device
           | burns like hell.
           | 
           | The CGM that wins is the one that doesnt stop working when
           | batteries die. Or piercing the skin.
        
         | ijustlovemath wrote:
         | we're building an artificial pancreas for hospitals, so I know
         | a good bit about CGMs. Noninvasive blood sugar sensing is
         | horrifically difficult. Every few years, people come along and
         | say "oh this is just some simple DSP on spectroscopic
         | information, piece of cake" before inevitably running up
         | against:
         | 
         | - skin conductivity changes over time
         | 
         | - the ways in which skin tone changes signal absorption (which
         | itself changes over time)
         | 
         | - the ways in which different levels of fitness affect blood
         | flow, material density etc.
         | 
         | You also can't use it in a hospital setting, due to how your
         | skin and bloodflow changes during serious conditions like
         | sepsis (though I'm guessing they're not thinking about that
         | market).
         | 
         | Really smart people have been trying to use Raman spectroscopy
         | to solve this problem for decades at this point (early patents
         | go to early 2000s). Apple is an extremely strong hardware
         | vendor, and I wish them luck, but I would not hold my breath
         | for this. Plus, I'm guessing they will not open the signal up
         | for looping, which would really leave the T*DM community out to
         | dry.
        
           | cookingmyserver wrote:
           | Honestly, none of those sound like blockers for the use case
           | I and many other diabetics would like - monitoring for
           | general blood sugar responses (rough curve) after eating.
           | Sure, you wouldn't be able to use the measurements to dose
           | insulin or even measure your actual (numeric) glucose level,
           | but measuring my A1C every three months is good enough to do
           | that in mine and many other cases. I've had my blood sugar
           | controlled through diet and metformin with it being in the
           | range of 5.9 - 6.2. I could do so much better if I had a
           | better understanding of how my body, specifically, reacts to
           | certain foods, mealtimes, routines (exercise after eating),
           | etc.
           | 
           | It would be super helpful to know (relative to other foods)
           | how my body reacts to claimed low-carb foods. Is there a
           | large spike (don't need to know the number) or is it a much
           | more flat curve? How long in general does it take for the
           | line to return to pre-meal levels? What does that trend look
           | like over many months? Heck, I could even run a rudimentary
           | and simple test to do comparative insulin response to a known
           | amount of carbs to see if my insulin response is improving
           | over time (using the period of the curve). I would love to
           | get an alert that hey, we think your glucose level shot up a
           | lot (don't care how much) so that I can remediate it through
           | exercise then and there and avoid that food or timing going
           | forward.
           | 
           | Really hoping the people in Medtech don't make perfect the
           | enemy of good in this case. Although maybe what you listed
           | would still be blockers for even getting general glucose
           | curves. I've been planning on getting a CGM for at least a
           | few months to achieve all of this, but it would be great to
           | just have it in a watch or other simple wearable.
        
             | ijustlovemath wrote:
             | Agreed that the value of a CGM is in the change
             | information, and that adding a CGM is probably the biggest
             | quality of life increase for anyone with diabetes. Highly
             | pro CGM if you can get it!
             | 
             | The issue with spectroscopic approaches is the amount of
             | noise can be really hard to disentangle, to the point that
             | you might get really unreliable trend information, where it
             | might even be dangerous if you're making dosing decisions
             | off it. And even if you aren't, getting incorrect trend
             | information doesn't really help you any more than just not
             | knowing it.
        
       | ReptileMan wrote:
       | I have always had the following idea. Show specificalists in the
       | domain the end result and make them reproduce it without reading
       | the patent. If they succeed - the patent is invalid.
        
       | jmyeet wrote:
       | This is your daily reminder that patents stifle innovation. This
       | was evident over a century ago and the poster child for this is
       | the so-called Wright Brothers patent war [1].
       | 
       | The Wright brothers patented a method of flight control and then
       | went on a litigation spree. The result was that the US was unable
       | to build airplanes. This became a problem when the US entered
       | World War One and the US military had to buy planes from France.
       | 
       | This situation was so bad that the Federal government stepped in
       | to force the major players to create a patent pool, a situation
       | that lasted until 1977.
       | 
       | [1]: https://en.wikipedia.org/wiki/Wright_brothers_patent_war
        
       | fennecfoxy wrote:
       | "Celebrating Apple's spirit of innovation" yeah, sure.
       | 
       | Why only Apple? Wouldn't this allow every smart watch/sensor
       | manufacturer to do the same thing?
        
       | rqtwteye wrote:
       | Going through BS patents would be a nice job for Musk's DOGE.
       | That would do more good than firing people and two days later
       | noticing that this people actually were important.
        
       | bilsbie wrote:
       | How accurate is it. I loved having a cgm for a few weeks. It's
       | over the counter now.
       | 
       | The strangest thing was keeping my blood sugar spikes really low
       | but still gaining weight. I didn't think my body could really
       | store fat without a spike but apparently it can.
        
       | wdb wrote:
       | I wish there was a way to measure blood pressure via an Apple
       | Watch :) Don't think that's feasible
        
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