Wearable pulse wave velocity blood pressure sensor and methods of calibration thereof
US7674231B2 · kind B2 · utility
241Cited by
21References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2007 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Aug 17, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7239
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and methods for performing a circulatory measurement on an extremity, such as a hand, of a subject. The circulatory measurement results in the derivation of an output circulatory metric that may encompass blood pressure or various other circulatory metrics. An indicator of an input circulatory metric at a locus on the extremity is measured, such as a pulse transit time, and calibrated to account for the hydrostatic component of blood pressure arising due to vertical displacement of the extremity with respect to the heart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.