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US 5,980,505 AGranted
Overlapping welds for catheter constructions
AssigneeMedi-Dyne Ince.
InventorJames C. Wilson
Life of this patent
Estimating the term…
Abstract
A catheter having at least two lengths of tubular material axially joined together by a welded joint with no perceptible change in diameter at the welded joint; the welded joint including a substantial axially oriented seam between the two lengths of material.
Claims5
An intravascular catheter having an external peripheral surface and a lumen extending therethrough and along a longitudinal axis, which catheter comprises:
- a flexible, plastic inner tube;
- a fibrous, tubular reinforcement member carried by said inner tube;
- and an outer tube of substantially constant diameter including
- a first axial section comprising a first plastic material overlying said inner tube and reinforcement member;
- a second axial section comprising a second plastic material overlying said inner tube and reinforcement member, wherein said first and second axial sections are substantial mirror images of each other;
- and
- a welded joint between said first and second axial sections, said welded joint including a seam along said external peripheral surface at least 0.5 cm. in axial length extending at an acute angle to said longitudinal axis.
4 more elements
Dependencies are inferred from the claim text.