Centering mechanism for probe
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United States of America Patent
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May 11, 2004
Grant Date -
Sep 12, 2002
app pub date -
Mar 12, 2001
filing date -
Mar 12, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A centering mechanism accurately centers a probe as it moves through a pathway having a changing shape, diameter, and direction. More specifically, the invention provides a probe centering device that includes a ring shaped resilient balloon, a front stopper that fixes a location of a first side of the balloon, and a biasing mechanism that applies a biasing force to a second side of the balloon. The biasing mechanism includes a rear stopper, a spring and a pusher, wherein the spring is located between the rear stopper and the pusher and the pusher is in contact with the second side of the balloon. A flexible member is preferably provided to cover and protect the biasing mechanism.
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