Hybrid catheter guide wire apparatus
First Claim
1. A hybrid catheter guide wire for introduction into a vessel pathway to guide a catheter to a predetermined location, comprising a thin elongate solid body of material having a sloping portion which tapers to a narrow section having a thinner distal termination, and a thin elongate tubular body of material attached co-linearly to the distal end of the solid body and which abuts but is not attached to the sloping portion such that a hollow is formed between the tubular body and the narrow section, at least some portion of the tubular body having greater lateral flexibility than the solid body.
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Accused Products
Abstract
A hybrid catheter guide wire includes an elongate solid body having a tapered distal end over which is disposed a tubular section-about which a catheter may be threaded for guidance to a target location in a vasculature passageway of a body. Cuts are formed either by saw-cutting, laser cutting or etching at spaced-apart locations along at least a portion of the tubular section to increase its lateral flexibility, while maintaining its rotational torquability, and to control the direction and degree of flexure.
241 Citations
21 Claims
- 1. A hybrid catheter guide wire for introduction into a vessel pathway to guide a catheter to a predetermined location, comprising a thin elongate solid body of material having a sloping portion which tapers to a narrow section having a thinner distal termination, and a thin elongate tubular body of material attached co-linearly to the distal end of the solid body and which abuts but is not attached to the sloping portion such that a hollow is formed between the tubular body and the narrow section, at least some portion of the tubular body having greater lateral flexibility than the solid body.
Specification