Hypovolemia diagnosis technique
US11478155B2 · kind B2 · utility
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35References
24Claims
0Family size
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Key dates
| Filing date | Sep 17, 2018 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | May 17, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0816
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Embodiments of the present disclosure relate to a system and method for determining a risk, onset, or presence of hypovolemia based on one or more features of a plethysmographic waveform during a patient breathing cycle. For example, a hypovolemic patient may exhibit characteristic changes in pulse amplitude or stroke volume during inhalation and exhalation relative to a healthy patient. Further, a trend or pattern of such features may be used to assess the patient's fluid condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.