Adjustable implantable drug infusion system
US5061242A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1989 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Jul 18, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/14264
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A drug delivery system for implantation into a living body having a pressure actuated infusion pump and an adjustable flow regulator. The regulator comprises a body having a regulator cavity divided by a diaphragm into two chambers. One chamber serves as a pressure sensor and the other as a conduit through which fluid flows. The outlet from the conduit chamber can be sealed by diaphragm movement as a function of pressure increase or the flow restricted. The outlet itself is mounted on an adjustable fitting that is movable relative to the diaphragm. The distance between the outlet and the diaphragm may be set as a calibration of the regulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.