Methods and apparatus for non-invasive determination of patient's blood conditions
US7758505B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2006 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Nov 13, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus are presented for non-invasive determination of blood clotting related and blood circulation related parameters of a mammal. At least one stimulus ST is non-invasively induced in a blood containing medium in the mammal for a preset period of time tST. This at least one stimulus is selected to cause at least one of the following to occur: (a) inducing at least two of three Virchow's triad elements including abnormalities of blood flow; abnormalities of blood constituents and abnormalities of the blood vessel wall, and (b) inducing a change in red blood cell (RBC) aggregation or local blood viscosity. Measurements are non-invasively performed at a measurement location in the mammal by applying an external field thereto for a preset time period tm, a response of the measurement location to the applied field is detected, and measured data indicative thereof generated. At least a portion of the measured data and stimulus related data are processed so as to determine a relation between a time function of the at least one stimulus ST(t) and a time function of the measured data OR(t). This relation is indicative of at least one blood circulation and blood coagulation…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.