Commit 0befa783 authored by Zach Fredin's avatar Zach Fredin

updates

parent 75239c4f
......@@ -29,6 +29,8 @@ See the Background section for more information on how these sensors work, the A
- improve algorithm
- filtering, curve fitting, etc
![pulseox_plans](../img/pulseox_plans.jpg)
### Questions
Is there a need for a crude, distributed-fab coronavirus early warning device? Something that, rather than giving an absolute SpO<sub>2</sub> reading, provides a go/no-go indication relative to an initial condition. The standard for commercial pulse-ox devices is master calibration in a clinical trial using human subjects that deliberately enter a hypoxic state. Instead, what about a cheap indicator that simply indicates the change in SpO<sub>2</sub> since its first measurement, using a green-yellow-red indication rather than a digital display? Such a device could be provided to patients to wear continuously upon hospital discharge (or an asymptomatic positive covid-19 test result), and would give them an indication when they need to call their doctor due to plunging blood oxygen content. Crucially, the device would be cheap and would not require specialized components, so it could be made easily anywhere.
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