Valve for supplying, controlling and taking out a medium contained in an implanted container
US4534759A · kind A · utility
Inventor
Key dates
| Filing date | Mar 7, 1983 |
| Grant date | Aug 13, 1985 |
| Priority date | — |
| Expiry date | Mar 7, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K15/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
For the supply, control or taking of a medium contained in an implanted container the valve has a valve body (2) in which the flow channel (3) is formed by two pocket bores running into each other at an angle. The first pocket bore serves as an introduction channel (5) for the injection needle (15) and is outwardly provided with a conical widening (4). Into the second pocket bore (6) a particularly spherical closure member (7) is inserted which projects into the introduction channel (5) in the closed condition and whose part protruding into a chamber (11) connected with the container is acted upon by an elastic element (9). Preferably an O-ring sunk into an annular groove of the second pocket bore (6) serves as valve seat (8) for the closure member (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.