Blood testing device
US5665311A · kind A · utility
Inventors
Key dates
| Filing date | Feb 3, 1989 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Feb 3, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/4905
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring physical properties of blood is disclosed. Two reservoirs are provided connected to a receptacle means by at least two elongated tubes. A punching station located along the two tubes permits the simultaneous punching of holes to simulate bleeding in the tubes. The bleeding of the tubes is monitored to indicate the haemostasis properties of blood flowing through the elongated tubes. Monitoring is effected by measuring the downstream pressure of a punched tube. Alternate embodiments include the addition of third channel having a collagen material within the channel. Platelet aggregation on the collagen material is observed as a measure of haemostasis properties of the blood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.