Intravascular blood parameter measurement system
US4928694A · kind A · utility
123Cited by
33References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1989 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | Mar 23, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/1459
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A parameter of blood is sensed in vivo with a system which includes a catheter and a probe. The catheter has a lumen extending therethrough, a proximal end, a distal end and a distal opening at the distal end. The probe includes one or more sensors at its distal end. A saline solution is introduced into the lumen so that there is an interface adjacent the distal opening of the catheter between the blood and saline solution. The probe is received within the catheter and affixed thereto. The interface is moved back and forth in the lumen to expose the sensors to blood so that they can sense the blood parameters of interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.