Apparatus for reversibly closing a body passage
US4419985A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1982 |
| Grant date | Dec 13, 1983 |
| Priority date | — |
| Expiry date | Mar 24, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/25
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable apparatus for controlling the flow of body fluids through a body passage includes a cuff which can be inflated with pressurizing fluids to close the body passage, a push button actuated and expandible reservoir for the pressurizing fluid and tubing connecting the cuff and the reservoir to form a closed system. The reservoir includes a pumping chamber having a tension spring positioned therein and a push rod located outside the pumping chamber. The push rod is attached to a push button which when actuated expands the volume of the reservoir to receive pressurizing fluids from the cuff thereby allowing the cuff to deflate and the body passage to open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.