Bailout receptacle for angioplasty catheter
First Claim
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1. A method for practicing balloon angioplasty, comprising the steps of:
- a. providing a bailout system, said bailout system comprising;
a receptacle comprising an elongate tubular shaft having a lumen of a substantially constant diameter extending longitudinally therethrough from a proximal end to a distal end, said receptacle being adapted to extend longitudinally through a guiding catheter; and
a balloon angioplasty catheter having a proximal end and a distal end and an angioplasty balloon at or near the distal end of the catheter, said balloon in communication with a balloon inflation lumen and said balloon further having a maximum inflated diameter, said angioplasty catheter extending through said lumen, said angioplasty catheter and said receptacle each adapted to freely slide longitudinally with respect to each other, and wherein the diameter of the lumen in the receptacle is not greater than the maximum inflated diameter of the balloon;
b. positioning the bailout system in a patient, so that the angioplasty balloon of the angioplasty catheter is positioned in a stenosis;
c. inflating and deflating the balloon to dilate the stenosis;
d. advancing the distal end of the bailout receptacle through the stenosis;
e. then advancing a guidewire through the bailout receptacle and through the lesion, such that the guidewire is outside of said catheter along the entire length of said catheter; and
f. withdrawing the angioplasty catheter from the patient, leaving the guidewire in the dilated lesion.
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Abstract
A bailout system for procedures involving angioplasty catheters, comprising a receptacle sized to fit inside an angioplasty guiding catheter, comprising an elongate tubular shaft having a lumen extending longitudinally therethrough from a proximal end to a distal end, a balloon angioplasty catheter extending through the lumen, the angioplasty catheter and the receptacle each adapted to slide longitudinally with respect to each other, and a longitudinally movable guidewire extending through the lumen but outside of the angioplasty catheter. Also disclosed is a method for using the system.
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Citations
31 Claims
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1. A method for practicing balloon angioplasty, comprising the steps of:
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a. providing a bailout system, said bailout system comprising; a receptacle comprising an elongate tubular shaft having a lumen of a substantially constant diameter extending longitudinally therethrough from a proximal end to a distal end, said receptacle being adapted to extend longitudinally through a guiding catheter; and a balloon angioplasty catheter having a proximal end and a distal end and an angioplasty balloon at or near the distal end of the catheter, said balloon in communication with a balloon inflation lumen and said balloon further having a maximum inflated diameter, said angioplasty catheter extending through said lumen, said angioplasty catheter and said receptacle each adapted to freely slide longitudinally with respect to each other, and wherein the diameter of the lumen in the receptacle is not greater than the maximum inflated diameter of the balloon; b. positioning the bailout system in a patient, so that the angioplasty balloon of the angioplasty catheter is positioned in a stenosis; c. inflating and deflating the balloon to dilate the stenosis; d. advancing the distal end of the bailout receptacle through the stenosis; e. then advancing a guidewire through the bailout receptacle and through the lesion, such that the guidewire is outside of said catheter along the entire length of said catheter; and f. withdrawing the angioplasty catheter from the patient, leaving the guidewire in the dilated lesion. - View Dependent Claims (2)
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3. A method for dilating a bifurcation double lesion, comprising the ordered steps of:
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(a) providing a bailout system, said bailout system comprising; a receptacle comprising an elongate tubular shaft having a lumen of a substantially constant diameter extending longitudinally therethrough from a proximal end to a distal end, said receptacle being adapted to extend longitudinally through a guiding catheter; and a balloon angioplasty catheter having a proximal end and a distal end and an angioplasty balloon at or near the distal end of the catheter, said balloon in communication with a balloon inflation lumen and said balloon further having a maximum inflated diameter, said angioplasty catheter extending through said lumen, said angioplasty catheter and said receptacle each adapted to freely slide longitudinally with respect to each other, and wherein the diameter of the lumen in the receptacle is not greater than the maximum inflated diameter of the balloon; (b) advancing the system into the coronary artery of a human patient having coronary bifurcation lesion disease at a branch of said artery, so that the angioplasty balloon is in a first bifurcation lesion, and advancing a guidewire through said bailout receptacle so that the guidewire is extending through a second bifurcation lesion, such that the guidewire is outside of said catheter along the entire length of said catheter; (c) inflating and deflating the balloon to dilate the first bifurcation lesion; (d) reversing the respective positions of the balloon and the bailout guidewire, so that the guidewire is in the dilated first bifurcation lesion and the balloon is in the second bifurcation lesion; and (e) inflating and deflating the balloon to dilate the second bifurcation lesion. - View Dependent Claims (4)
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5. A bailout system for procedures involving angioplasty catheters, comprising:
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a guiding catheter; a receptacle of a substantially constant diameter extending logitudinally through the guiding catheter, comprising an elongate tubular shaft having a lumen extending longitudinally therethrough from a proximal end to a distal end; a balloon angioplasty catheter extending through said lumen, said angioplasty catheter and said receptacle each adapted to slide longitudinally with respect to each other; and a longitudinally movable guidewire extending through said lumen, wherein said guidewire is outside of said angioplasty catheter along the entire length of the catheter. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A bailout system for procedures involving balloon angioplasty catheters, comprising:
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a receptacle comprising an elongate tubular shaft having a lumen of a substantially constant diameter extending longitudinally therethrough from a proximal end to a distal end, said receptacle being adapted to extend longitudinally through a guiding catheter, and a side port extending through said shaft adapted to receive a guidewire extending therethrough; a balloon angioplasty catheter extending through said lumen, said angioplasty catheter and said receptacle each adapted to freely slide longitudinally with respect to each other, wherein the balloon angioplasty catheter has an angioplasty balloon having a maximum inflated diameter, and wherein the diameter of the lumen in the receptacle is not greater than the maximum inflated diameter of the balloon; and a longitudinally movable guidewire extending through said lumen, wherein said guidewire is outside of said catheter along the entire length of said catheter. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification