Steerable dilatation catheter
First Claim
1. In a dilatation catheter, an elongate flexible plastic tubular member having proximal and distal ends and an axially extending flow passage extending therethrough, an inflatable balloon of flexible plastic carried by the tubular member and disposed near the distal end of the tubular member and having its interior in communication with the flow passage, a continuous guide wire extending through the flow passage, the balloon and the distal end of the tubular member, and means bonding the distal end of the tubular member directly to the guide wire to form a bond so that the guide wire is secured to the distal extremity of the tubular member.
1 Assignment
0 Petitions
Accused Products
Abstract
Low profile dilation catheter and method of manufacturing the same for use in percutaneous transluminal coronary angioplasty. The catheter has an inflatable balloon for dilating stenotic lesions, and an integral guide wire by which the catheter can be steered into the artery system.
-
Citations
15 Claims
- 1. In a dilatation catheter, an elongate flexible plastic tubular member having proximal and distal ends and an axially extending flow passage extending therethrough, an inflatable balloon of flexible plastic carried by the tubular member and disposed near the distal end of the tubular member and having its interior in communication with the flow passage, a continuous guide wire extending through the flow passage, the balloon and the distal end of the tubular member, and means bonding the distal end of the tubular member directly to the guide wire to form a bond so that the guide wire is secured to the distal extremity of the tubular member.
- 8. In a catheter for dilating a lesion in the cardiovascular system, an elongate flexible plastic tubular member having proximal and distal ends and an axially extending flow passage, an inflatable balloon of flexible plastic carried by the tubular member adjacent the distal end of the tubular member and having its interior in fluid communication with the flow passage in the tubular member, a metal guide wire having a shaft which extends through the flow passage in the tubular member and into the interior of the balloon, means directly bonding the distal end of the tubular member to the guide wire, means connected to the proximal end of the guide wire for rotating the same to steer the catheter into the cardiovascular system, and means connected to the proximal end of the tubular member for introducing a pressurized fluid into the flow passage to inflate the balloon.
Specification