Passive flow control devices for implantable pumps
US6471675B1 · kind B1 · utility
44Cited by
9References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1999 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Apr 30, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/0244
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable drug delivery device is provided with a passive flow control device is provided in the form of a valve which may assume two flow states. Flow control is achieved by duty cycling the valve using a control module which generates appropriate signals in response to an input telemetry signal corresponding to a desired flow rate. In another embodiment, a passively controlled bolus delivery device is provided to deliver a bolus of drug in addition to normal dosage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.