Method for measuring recirculation in catheters
US7758530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2004 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Apr 21, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2209/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for measuring recirculation of blood in a catheter designed for implantation in a human is described. In one variation, the system comprises an artificial circulatory system and an ultrasonic detection device for measuring and comparing the density of a circulated blood simulant with a later introduced bolus saline. The system may be configured to simulate a human heart by providing the flow, pressure and dimensions of a typical human heart. In addition to simulating the circulatory system of a normal human heart, the system may also be configured to simulate particular negative conditions of a patient, such as stenotic condition, which would affect the recirculation measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.