Ball joint for neurosurgery
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United States of America Patent
Stats
-
Nov 23, 1993
Grant Date -
N/A
app pub date -
Mar 4, 1992
filing date -
Mar 4, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ball joint for holding a neurosurgery tool in a predetermined orientation relative to a patient's skull has a plate that fits onto the skull. The plate is formed with a socket, and a ball is rotatably positioned in the socket. The ball, in turn, is formed with a bore, and the neurosurgery tool can be positioned in the bore to extend through the bore of the ball into the patient's brain. The ball can accordingly be rotated as appropriate to establish a predetermined orientation of the neurosurgery tool relative to the patient's skull. Set screws are provided to hold the neurosurgery tool stationary relative to the bore of the ball, and to hold the ball stationary relative to the plate. A retainer ring holds the ball against the plate.
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