Drug-delivery pumps and methods of manufacture
US8231608B2 · kind B2 · utility
20Cited by
50References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2009 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | May 8, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1093
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Embodiments of an implantable electrolytic pump include a first expandable diaphragm and a second flexible diaphragm, and first and second chambers each for containing a fluid, wherein the first expandable diaphragm separates the first and second chambers and provides a fluid barrier therebetween, and the second chamber is formed between the first expandable diaphragm and the second flexible diaphragms. The pump may further include electrolysis electrodes within the first chamber for causing generation of a gas therein and to thereby expand the expandable diaphragm so that fluid is forced from the second chamber into a cannula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.