Valve for supplying, controlling and taking out a medium contained in an implanted container
First Claim
1. Valve for supplying, controlling and taking out a medium contained in an implanted container, comprising a valve body having an exterior and an interior, wherein a flow channel is provided which widens conically toward the exterior of said valve body for the introduction of an injection needle and which runs into a chamber in the interior of the valve body, said chamber being connectable with said container, and in which chamber a closure member acted upon by a reset means is inserted which clears said flow channel when said injection needle is inserted and recloses when it is taken out, characterized in that said flow channel (3) comprises an introduction channel (5) for said injection needle (15) in the form of a first pocket bore terminating at a needle penetration limiting end portion in said chamber and a second pocket bore (6) angularly arranged crosswise relative to and intersecting said introduction channel (5), which said second pocket bore receives said closure member (7), whereby said closure member (7) projects into said introduction channel (5) in the closed condition.
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Accused Products
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).
42 Citations
9 Claims
- 1. Valve for supplying, controlling and taking out a medium contained in an implanted container, comprising a valve body having an exterior and an interior, wherein a flow channel is provided which widens conically toward the exterior of said valve body for the introduction of an injection needle and which runs into a chamber in the interior of the valve body, said chamber being connectable with said container, and in which chamber a closure member acted upon by a reset means is inserted which clears said flow channel when said injection needle is inserted and recloses when it is taken out, characterized in that said flow channel (3) comprises an introduction channel (5) for said injection needle (15) in the form of a first pocket bore terminating at a needle penetration limiting end portion in said chamber and a second pocket bore (6) angularly arranged crosswise relative to and intersecting said introduction channel (5), which said second pocket bore receives said closure member (7), whereby said closure member (7) projects into said introduction channel (5) in the closed condition.
- 8. Valve for supplying, controlling and taking out a medium contained in an implanted container, comprising a valve body having a chamber connectable with said container, a flow channel leading from said chamber to the exterior of said valve body for the introduction of an injection needle, said flow channel including an introduction channel for said injection needle in the form of a first blind bore terminating at a needle penetration limiting end portion and a second blind bore arranged crosswise to and intersecting said first blind bore, a closure member acted upon by a reset means being received in said second blind bore and projecting into said first blind bore in the closed condition of the valve under the action of said reset means acting in the crosswise direction of said second blind bore relative to said first blind bore and which closure member clears said flow channel when said injection needle is inserted to displace said closure member against the action of said reset means to the open condition of said valve.
Specification