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US 2024/0390638 A1Published application
Variable stiffness catheter liners
AssigneeScientia Vascular, LLC
InventorsNolan LESUEUR, William Rigby ECCLES, Richard F. MAGGIO, Edward J. SNYDER
Life of this patent
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Abstract
Disclosed are embodiments for catheters and catheter liners including grooves on the inner surface of the liner. The grooves may improve the flexibility of the catheter while retaining a good stiffness profile. Also disclosed are methods for introducing the grooves on the inner surface of the liner.
Claims20
An intravascular device, comprising:
- a scaffold;
- a liner extending through the scaffold such that an outer surface of the liner engages with an inner surface of the scaffold;
- and
- an outer polymer layer disposed over the scaffold and the liner,
- wherein an inner surface of the liner comprises one or more grooves.
2 more elements
An intravascular device, comprising:
- a scaffold comprising a shaft, and a coil, wherein the shaft includes a plurality of fenestrations and wherein the coil is disposed distal of the shaft;
- a liner extending through the scaffold such that an outer surface of the liner engages with an inner surface of the scaffold;
- and
- an outer polymer layer disposed over the scaffold and the liner,
- wherein an inner surface of the liner comprises one or more grooves,
- wherein the one or more grooves form a helical groove pattern in the inner surface of the liner.
3 more elements
A method of making an intravascular device, the method comprising:
- a) disposing a liner over a mandrel, the mandrel comprising one or more ridges that complement a pattern of grooves to be formed on an inner surface of the liner;
- b) disposing a scaffold over the liner and the mandrel;
- c) disposing a polymer layer over the scaffold, the liner, and the mandrel to form a catheter assembly, and
- d) heating the catheter assembly along a length of the polymer layer.
1 more element
Dependencies are inferred from the claim text.