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US 5,496,294 AGranted
Catheter with kink-resistant distal tip
AssigneeTarget Therapeutics, Inc.
InventorsRobert Hergenrother, June Lim, Roger Farnholtz, Kim Nguyen, Edward Snyder
Life of this patent
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Abstract
This invention is a surgical device. In particular, it is a catheter suitable for treating a tissue target within the body, which target is accessible through the vascular system. Central to the invention is the use of a multi-component distal section having an interior stiffener and an exterior tubing member.
Claims16
A catheter section comprising:
- an elongate tubular member having a proximal end and a distal end and a passageway defining an inner lumen extending between those ends, the distal end of the elongate tubular member comprising:
- a.) an inner stiffener liner of a first liner material in coaxial relationship with an outer tubular cover,
- b.) an outer tubular cover comprising a polyethylene blend containing at least 12% EVA, and
- c.) at least a distal radiopaque marker located distally of said inner stiffener liner.
1 more element
A catheter section comprising:
- an elongate tubular member having a proximal end and a distal end and a passageway defining an inner lumen extending between those ends, the distal end of the elongate tubular member comprising:
- a.) an inner stiffener liner of a first liner material comprising a helically wound metallic ribbon stiffener in coaxial relationship with an outer tubular cover,
- b.) an outer tubular cover comprising a cover material, and
- c.) at least a distal radiopaque marker located distally of said inner stiffener liner.
1 more element
Dependencies are inferred from the claim text.