Dilatation catheter suitable for peripheral arteries
First Claim
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1. A dilatation catheter having a fixed guiding member therein for angioplasty procedures, comprising:
- a) an elongated tubular member having an inner lumen extending therein, a relatively stiff proximal portion and relatively flexible distal portion;
b) a short diametrically rigid cylindrical element disposed at least in part within the inner lumen in the distal portion of the tubular member and secured thereto;
c) a flexible inelastic inflatable balloon member secured to the distal end of the elongated tubular member;
d) a guiding member extending through the interiors of the tubular member and the flexible balloon member and having a portion extending out the distal end of the balloon member, the guiding member being bonded to the proximal portion of the tubular member within the inner lumen extending therein and to the cylindrical element disposed within the distal portion of the tubular member, and the distal end of the balloon being secured about the guiding member; and
e) a flexible body disposed about the portion of the guiding member extending out of the distal end of the balloon member and secured thereto.
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Abstract
A steerable balloon dilatation catheter which is particularly suitable for peripheral arteries having an elongated tubular member with a flexible, inelastic balloon on the distal end. The tubular member has a relatively stiff proximal portion formed of stainless steel and a relatively flexible distal portion formed of a polyester. A fixed guiding member is disposed within the catheter bonded to the proximal portion of the tubular member, to a short relatively rigid cylindrical member bonded to the distal portion of the tubular member and the distal end of the balloon.
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Citations
12 Claims
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1. A dilatation catheter having a fixed guiding member therein for angioplasty procedures, comprising:
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a) an elongated tubular member having an inner lumen extending therein, a relatively stiff proximal portion and relatively flexible distal portion; b) a short diametrically rigid cylindrical element disposed at least in part within the inner lumen in the distal portion of the tubular member and secured thereto; c) a flexible inelastic inflatable balloon member secured to the distal end of the elongated tubular member; d) a guiding member extending through the interiors of the tubular member and the flexible balloon member and having a portion extending out the distal end of the balloon member, the guiding member being bonded to the proximal portion of the tubular member within the inner lumen extending therein and to the cylindrical element disposed within the distal portion of the tubular member, and the distal end of the balloon being secured about the guiding member; and e) a flexible body disposed about the portion of the guiding member extending out of the distal end of the balloon member and secured thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification