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US 5,695,483 AGranted
Kink-free spiral-wound catheter
AssigneeTarget Therapeutics, Inc.
InventorGene Samson
Life of this patent
Estimating the term…
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 stiffener ribbons, typically metallic, wound within the catheter body in such a way as to create a catheter having controllable stiffness.
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, said elongate tubular member comprising an outer tubular cover in coaxial relationship with at least a first ribbon stiffener comprising a superelastic alloy and having a handedness and spirally and coaxially wound and covered by said outer tubular cover, and the catheter section, in the region of the distal end, has a critical bend diameter of no more than 3.5 mm.
Dependencies are inferred from the claim text.