Burr-hole flow control valve
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United States of America Patent
Stats
-
Jan 13, 1987
Issued Date -
N/A
app pub date -
Nov 8, 1985
filing date -
Jun 30, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A surgically implantable flow control valve positionable over a burr-hole through a patient's skull is provided for use in shunt systems for controlling the release of entrapped body fluids. The valve includes a relatively rigid, unitized molded plastic base having a planar valve seat portion, an inlet passageway through the base which terminates at an inlet port situated within the planar valve seat portion of the base, a resilient membrane which is molded of a material different from the material of the plastic base and which is secured to the base in a manner surrounding and covering the inlet port, and an outlet separated from the inlet by the resilient membrane. Radiopaque indicators and markers are provided which permit a surgeon to ascertain specific information about the device and the functioning of the shunt system which would otherwise be unavailable without additional surgery.
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Cited Art Landscape
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