Catheter system with high kink resistance
First Claim
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1. An endoprosthesis delivery catheter system, comprising:
- a shaft assembly extending between a proximal end portion and a distal end portion, the distal end portion being capable of carrying an endoprosthesis to a placement site;
a ring component;
a tubular element having a first end, in end to end facing relationship with the ring component while carried on the distal end of the shaft, and a second end remote from the first end, and a tubular casing being in tension around the circumference of the shaft to enhance its frictional contact with the shaft and extending along the shaft over a radially outer surface of the tubular element, and along the shaft radially inside the ring component, enabling the tubular element to resist unwanted axial sliding movement of the ring component on the shaft.
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Abstract
A catheter system (1) which is useable as a part of a delivery kit for introducing objects (8) into the living body is provided which has a very high flexibility with simultaneous kink resistance and via which compressive as well as tensile forces are reliably transmittable. It comprises at least one longitudinally extended inner catheter (4) and at least one accessory component (6, 10) which is arranged in the distal end region of the inner catheter (4), wherein the end-face is abutted on at least a portion of the accessory component (10) such that movement of the accessory component (10) relative to the longitudinal extent of the inner catheter (4) is prevented.
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Citations
23 Claims
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1. An endoprosthesis delivery catheter system, comprising:
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a shaft assembly extending between a proximal end portion and a distal end portion, the distal end portion being capable of carrying an endoprosthesis to a placement site;
a ring component;
a tubular element having a first end, in end to end facing relationship with the ring component while carried on the distal end of the shaft, and a second end remote from the first end, and a tubular casing being in tension around the circumference of the shaft to enhance its frictional contact with the shaft and extending along the shaft over a radially outer surface of the tubular element, and along the shaft radially inside the ring component, enabling the tubular element to resist unwanted axial sliding movement of the ring component on the shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification