Methods and apparatus for imparting curves in elongated medical catheters
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United States of America Patent
Stats
-
Sep 6, 2005
Grant Date -
Oct 23, 2003
app pub date -
Apr 19, 2002
filing date -
Apr 19, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Curves and dynamic shapes are imparted in distal segments of medical instruments e.g., catheters, through use of a temperature-activated actuator coupled to distal segment of the instrument body. The actuator comprises includes members extending side-by-side in substantially a common plane and configured to move in opposite directions when independently activated. A first heating device is coupled to a first actuator member and configured to deliver thermal energy to the first actuator member to activate the first actuator member and cause the first actuator member to move the distal segment in a first direction. A second heating device is coupled to a second actuator member and configured to deliver thermal energy to the second actuator member to activate the second actuator member and cause the second actuator member to move the distal segment in a second direction opposed to the first direction.
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- Non-US Classification not provided for expired patents
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