Close clearance seal for rotatable therapeutic catheters
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United States of America Patent
Stats
-
May 27, 1986
Grant Date -
N/A
app pub date -
Jun 27, 1984
filing date -
Jun 27, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a seal for a rotatable therapeutic catheter, such as a motor driven therapeutic catheter. The seal is made of a drive shaft which extends through an elongated bushing. The combined drive shaft and bushing form a low-friction axle/bearing combination such that there is little friction between them. In addition, the long restrictive path between the drive shaft and the bushing serves to prevent leakage between them.
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Cited Art Landscape
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