Impedance based device for non-invasive measurement of blood pressure and ankle-brachial index
US7887491B2 · kind B2 · utility
10Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2007 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Jan 6, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6824
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for non-invasive measurement of blood pressure includes a blood pressure cuff, a plethysmographic electrode for acquiring an impedance plethysmogram distal to the cuff and a processing device to inflate and deflate the cuff generate the impedance plethysmogram and to determine the systolic and diastolic blood pressures. The device can be used to measure systolic or diastolic blood pressure or both. It can also be used to take ankle-brachial measurements. An autocorrelation technique can be used to correct noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.