Surgery – Instruments – Internal pressure applicator
Reexamination Certificate
2005-12-20
2005-12-20
Ho, Tan-Uyen T. (Department: 3731)
Surgery
Instruments
Internal pressure applicator
C606S200000
Reexamination Certificate
active
06976991
ABSTRACT:
This is in the general field of surgical instruments and is specifically a delivery catheter with a flexible, proximally-manipulated hinge or joint region. The inventive catheter may have a balloon region. The catheter may have a shaft of varying flexibility which contains several lumen. The inner, or delivery, lumen generally may be used with a guidewire to access target sites within the body via the flexible, small diameter vessels of the body. The delivery lumen may be also used for placement of occlusive materials, e.g., in an aneurysm. Inflation of the micro-balloon, located near the distal tip of the catheter, is effected using the inflation lumen. The push/pull wire lumen contains a wire, which when manipulated, flexes the catheter's distal tip. The push/pull wire tubing may have a variable thickness to aid in adjusting the degree of flexibility. Moreover, the delivery catheter may be capable of twisting in a helical or corkscrew-like manner for traversing certain vasculature. This may be accomplished by winding the push/pull wire within the catheter and fixedly attaching it. The catheter may further include an entry in the catheter wall to allow for the insertion of a guidewire; this may facilitate the rapid exchange of catheter devices as desired by the user.
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English Abstract of German Patent Publication No. 199 49 590 A1 published on Jun. 21, 2002 located in Dialog®, File 351, Derwent WPI© 2002, one page.
Hebert Stephen
Levine Marc-Alan
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