Method and apparatus for determining the patency of a blood vessel
US5267565A · kind A · utility
47Cited by
7References
17Claims
0Family size
Inventor
Key dates
| Filing date | Apr 10, 1992 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Apr 10, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0285
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for testing the vascular condition of a patient including applying a pulsatile waveform to a part of a patient's body, observing the resultant blood flow at a location spaced from the point of application, and comparing the observed waveform with the applied waveform. In one aspect, the method and apparatus are used to assess a patient's suitability for femorodistal by-pass surgery. In another aspect, the method and apparatus are used to determine the patency calf arteries in a patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.