Implantable drug delivery device with peristaltic pump having a bobbin roller assembly
US6733476B2 · kind B2 · utility
47Cited by
24References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Apr 13, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/0266
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable drug infusion device includes a pump tube for holding a liquid to be pumped. A race is configured to support the pump tube. A roller assembly is configured to compress the tube against the race at one or more points along the path, and the roller assembly includes at least one roller. A drive assembly drives the roller assembly relative to the tube along the path so as to move the liquid through the tube. At least two biasing members are operably connected to the roller to bias the roller against the tube, the two biasing members forming an angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.