Piezoelectric fluid pumping system for use in the human body
US4731076A · kind A · utility
69Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Dec 22, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/03
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A totally or partially implantable fluid delivery system actuated by a valveless piezoelectric drive system. The drive system may actuate an artificial heart by a hydraulic bladder or directly actuate a human heart. The drive system has an output with a frequency and displacement sufficient to directly drive a human or artificial heart and includes a control circuit for recapturing and reusing the power driving the piezoelectric drive system. An artificial heart which includes two check valves having a flexible valve element and supporting tabs on opposite sides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.