Stretch resistant embolic coil delivery system with combined mechanical and pressure release mechanism
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United States of America Patent
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May 4, 2010
Grant Date -
Nov 22, 2007
app pub date -
Jun 20, 2007
filing date -
Jun 2, 2005
priority date (Note) -
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Abstract
A medical device for placing an embolic device at a predetermined site within a vessel of the body including a delivery catheter and a flexible pusher member slidably disposed within the lumen of the catheter. A fluid pressure source is coupled to the proximal end of the pusher member. An embolic device is retained at the distal end of the pusher member by a mechanical interlocking mechanism. The distal end of the pusher member includes a spiral ribbon section encircled by a tubular member. The tubular member or the distal end of the pusher member directs fluid from the fluid pressure source against the embolic device. The mechanical interlocking mechanism is disengaged from the embolic device and a fluid pressure is applied against the embolic device to ensure the release of the embolic device.
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