Dilatation catheter with angled balloon and method
First Claim
1. A balloon catheter comprising a flexible, elongate tubular member having at least one lumen extending therethrough and having proximal and distal extremities, an inflatable balloon which is carried by the distal extremity of the tubular member and which is preformed to subtend a predetermined interior angle between about 35°
- and 160°
when inflated, a tubular element extending at least through the balloon interior which is preformed to subtend a predetermined interior angle between about 35° and
160° and
which is adapted to receive a guide wire therethrough, and means for establshing fluid communication between a lumen in the tubular member and the interior of the balloon for inflating and deflating the balloon.
2 Assignments
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Accused Products
Abstract
Angled balloon dilatation catheter having a flexible elongate tubular member with first and second lumens extending therethrough and with proximal and distal extremities. An angled balloon is carried by the distal extremity of the tubular member. The elongate tubular member has a tubular element extending through the balloon. The first lumen extends through the tubular element and is capable of receiving a guide wire so that the guide wire extends therethrough. The second lumen is in communication with the interior of the angled balloon for inflating and deflating the balloon. The balloon subtends a predetermined interior angle.
230 Citations
15 Claims
-
1. A balloon catheter comprising a flexible, elongate tubular member having at least one lumen extending therethrough and having proximal and distal extremities, an inflatable balloon which is carried by the distal extremity of the tubular member and which is preformed to subtend a predetermined interior angle between about 35°
- and 160°
when inflated, a tubular element extending at least through the balloon interior which is preformed to subtend a predetermined interior angle between about 35° and
160° and
which is adapted to receive a guide wire therethrough, and means for establshing fluid communication between a lumen in the tubular member and the interior of the balloon for inflating and deflating the balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- and 160°
- 12. A method for utilizing a catheter with a balloon on the distal portion thereof which is preformed to subtend a predetermined angle when inflated, a guide wire, and a vent tube, said method comprising, advancing the guide wire through the dilatation catheter to straighten the angled balloon of the catheter, inserting the guide wire into a vessel of a patient, moving the dilatation catheter over the guide wire, advancing the guide wire so that it extends through the stenosis and advancing the angled balloon over the guide wire into the stenosis, inflating the angled balloon while it is positioned in the stenosis, deflating the balloon and thereafter removing the balloon dilatation catheter and the guide wire from the vessel.
Specification