Circulation monitoring system and method
US7628760B2 · kind B2 · utility
2Cited by
34References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2007 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Dec 11, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6838
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lightweight portable probe or transducer containing a transmissive or reflective electro-optical emitter and receptor in the infrared spectrum is fitted on a subject's finger or toe. Associated electronics energize and monitor the probe, detect cardio-rhythmic fluctuations therefrom, and process digital data over a prescribed window to produce a non-invasive, qualitative or quantitative measure of the subject's circulation. In accordance with one embodiment of the invention, a simple tri-color LED array is used to indicate the subject's circulation as being normal, reduced, or borderline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.