How Pulse Oximeters Work (2015) • Hacker News Board

Re: How Pulse Oximeters Work (2015)

#11

Post by ChrisGranger » Thu, Jul 16, 2020, 9:15 PM UTC

d1str0 wrote: post #10

el_don_almighty wrote: post #4

HN is the new /.

Feel free to make a new HN that caters perfectly to you.

I think the parent was referring to the Slashdot effect of knocking small websites offline.

https://en.wikipedia.org/wiki/Slashdot_effect

Re: How Pulse Oximeters Work (2015)

#12

Post by behnamoh » Thu, Jul 16, 2020, 9:16 PM UTC

"Error establishing a database connection"

Re: How Pulse Oximeters Work (2015)

#13

Post by [deleted] » Thu, Jul 16, 2020, 9:16 PM UTC

[deleted]

Re: How Pulse Oximeters Work (2015)

#14

Post by maxfan8 » Thu, Jul 16, 2020, 9:23 PM UTC

Here is the WBM archive of it: https://web.archive.org/web/20200708064647/https://www.howeq...

(for those who can't access the original site due to it being hugged to death)

Re: How Pulse Oximeters Work (2015)

#15

Post by herbstein » Thu, Jul 16, 2020, 9:29 PM UTC

progre wrote: post #2

Since the site is hugged to death, why not check out Technology Connections video instead: https://youtu.be/4pZZ5AEEmek

Technology Connections is such a good channel that mixes humor and in-depth looks at things people only kind know a little bit about.

Re: How Pulse Oximeters Work (2015)

#16

Post by ornel » Thu, Jul 16, 2020, 9:30 PM UTC

I measured myself at home in Mexico City and got 93%. I got kind of worried, knowing people sick with COVID-19 can have very low saturation levels without realising it. Then I remembered I was standing at about 2200 m above sea level. Lots of unexpected weirdness happens at high altutude

Re: How Pulse Oximeters Work (2015)

#17

Post by DangerousPie » Thu, Jul 16, 2020, 9:34 PM UTC

Does anybody have any suggestions for how to check whether a pulse oximeter actually works properly?

I bought one online from a not particularly trustworthy shop. I have never seen it show any value other than 99%. How can I figure out whether it actually does anything and doesn't just show 99% no matter what?

Re: How Pulse Oximeters Work (2015)

#18

Post by wlesieutre » Thu, Jul 16, 2020, 9:34 PM UTC

Speculated to be included in the Apple Watch S6 this fall.

https://9to5mac.com/2020/03/08/apple-watch-blood-oxygen-satu...

At the time they reported that there were mentions of it in an iOS 14 leak, but it wasn't clear if it would be a software update to existing watches (somehow able to detect it with existing heartrate hardware) or in a watch hardware revision. Since it wasn't mentioned in the watchOS news at WWDC, looks like it'll be new hardware.

Either that or the code they found in iOS 14 was related to the health app and support for 3rd party oximiters, but that's not how the 9to5 post frames it so best I can do is take their word for it.

Re: How Pulse Oximeters Work (2015)

#19

Post by el_oni » Thu, Jul 16, 2020, 9:35 PM UTC

herbstein wrote: post #15

progre wrote: post #2

Since the site is hugged to death, why not check out Technology Connections video instead: https://youtu.be/4pZZ5AEEmek

Technology Connections is such a good channel that mixes humor and in-depth looks at things people only kind know a little bit about.

It has a weird 80s-90s aesthetic that I can watch for hours. He got me back into electronics when he was talking about the NA electrical system, and bashing ring circuits

Re: How Pulse Oximeters Work (2015)

#20

Post by Tokkemon » Thu, Jul 16, 2020, 9:36 PM UTC

progre wrote: post #2

Since the site is hugged to death, why not check out Technology Connections video instead: https://youtu.be/4pZZ5AEEmek

Was going to send this link, but alas you already did. Alec is so good at this and I'm a proud Patron of his work. It's always really well done and thoughtful.