Brain ventricle shunt system
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United States of America Patent
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-
Dec 5, 1989
Grant Date -
N/A
app pub date -
Oct 27, 1987
filing date -
Nov 4, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A brain ventricle shunt system having a first catheter to be inserted into brain ventricle, a second catheter to be inserted into another part of a human body, and a shunt main body connected at one end thereof to the first catheter and at the other end to the second catheter. A check valve is provided for preventing cerebrospinal fluid from flowing back from the second catheter to the first catheter. The shunt main body has a reservoir formed therein and communicated with the first catheter to store the cerebrospinal fluid therein. A dome-shaped flexible portion is formed on the shunt main body and defining the reservoir. The dome-shaped flexible portion is provided to be upwardly projected from the shunt main body by pressure of brain ventricle and provided to be pressed through a scalp by a rod of an external pressure sensor to compress the reservoir.
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