Ventricular support system
US4782817A · kind A · utility
40Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | May 29, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3334
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An extracorporate ventricular support system includes a two bladder pump employing continuous gravity fill to the first bladder, while the second bladder is pneumatically driven to produce a pulsatile blood flow. A processor responds to air flow in the pneumatic drive line to control the pump through an electromagnetic valve supplying pressurized air. The program controls the output of blood volume per stroke to meet a target value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.