Angioplasty apparatus facilitating rapid exchanges and methods
First Claim
1. An elongated intravascular catheter assembly for performing intraluminal ultrasound procedures within a patient'"'"'s cardiovascular system, comprising:
- a) an elongated catheter with a catheter shaft having proximal and distal ends, the catheter shaft having a distal shaft section configured for advancement within a patient'"'"'s artery, a distal guidewire opening in the distal end of the catheter shaft, a proximal guidewire opening spaced a relatively short distance proximally from the distal guidewire opening and a relatively long distance from the proximal end of the catheter shaft, an inner lumen which extends between the distal guidewire opening and the proximal guidewire opening and which is configured to slideably receive a guidewire therein, wherein a portion of the inner lumen immediately adjacent to the proximal guidewire opening runs substantially parallel to the longitudinal axis of the catheter;
b) a device on the distal shaft section to perform an intravascular ultrasound procedure; and
c) a guidewire slideably disposed within the inner lumen of the elongated catheter and adapted to extend out of the distal end of the elongated catheter and into the patient'"'"'s artery.
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Accused Products
Abstract
The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.
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Citations
6 Claims
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1. An elongated intravascular catheter assembly for performing intraluminal ultrasound procedures within a patient'"'"'s cardiovascular system, comprising:
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a) an elongated catheter with a catheter shaft having proximal and distal ends, the catheter shaft having a distal shaft section configured for advancement within a patient'"'"'s artery, a distal guidewire opening in the distal end of the catheter shaft, a proximal guidewire opening spaced a relatively short distance proximally from the distal guidewire opening and a relatively long distance from the proximal end of the catheter shaft, an inner lumen which extends between the distal guidewire opening and the proximal guidewire opening and which is configured to slideably receive a guidewire therein, wherein a portion of the inner lumen immediately adjacent to the proximal guidewire opening runs substantially parallel to the longitudinal axis of the catheter;
b) a device on the distal shaft section to perform an intravascular ultrasound procedure; and
c) a guidewire slideably disposed within the inner lumen of the elongated catheter and adapted to extend out of the distal end of the elongated catheter and into the patient'"'"'s artery. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification