Intraluminal therapy catheter with inflatable helical member and methods of use
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United States of America Patent
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Jan 20, 2004
Grant Date -
Dec 19, 2002
app pub date -
Jun 19, 2001
filing date -
Jun 19, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is an intraluminal therapy catheter having a least two treatment members disposed near the distal end of the catheter, the members being independently inflatable to perform angioplasty and/or fluid-sourced brachytherapy. A first treatment member is helically mounted about the shaft of the catheter, and forms a helical perfusion channel when inflated into contact with the vessel being treated. In a first embodiment of the invention, the second treatment member is also helically mounted about the catheter shaft and capable of forming a helical perfusion channel when inflated into contact with the vessel. The first and second treatment members are intertwined to form a double helix configuration wherein each member is capable of being inflated to generally fill the helical perfusion channel created by simultaneous inflation of the other member. In a second embodiment of the invention, the second treatment member is a tubular balloon mounted generally coaxially about the catheter shaft, adjacent to the first treatment member.
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