Guidewire having enlarged, micro-fabricated distal section
AssigneeScientia Vascular, LLC
InventorsJohn A. Lippert, Edward J. Snyder
Life of this patent
Estimating the term…
Abstract
Disclosed is a guidewire having a core wire and an outer tube within which the distal section of the core is inserted. The outer diameter of the tube is greater than the outer diameter of the proximal section of the core wire. The guidewire also includes a proximal coil and a distal, radiopaque coil each disposed over the distal section of the core. A bushing coil is disposed over the proximal coil and distal coil. The proximal coil, distal coil, and bushing coil aid in filling the annular space between the core and the tube and thereby centering and aligning the core and tube.
Claims18
An intravascular device, comprising:
- a core having a proximal section and a distal section;
- an outer tube coupled to the core such that the distal section of the core passes into and is encompassed by the outer tube, the outer tube and the core defining an annular space between an inner surface of the outer tube and the distal section of the core disposed within the outer tube;
- a distal coil encompassing part of the distal section of the core;
- a proximal coil disposed proximal of the distal coil and encompassing part of the distal section of the core;
- and
- a bushing coil disposed over at least a portion of the distal coil and over at least a portion of the proximal coil,
- wherein the distal coil, proximal coil, and bushing coil fill at least a portion of the annular space,
- wherein an outer diameter of the outer tube is greater than an outer diameter of the proximal section of the core, and
- wherein the outer tube includes fenestrations that form a plurality of axially extending beams connecting circumferentially extending rings, wherein the fenestrations form a two-beam section proximal of a one-beam section proximal of a distal-most two-beam section.
An intravascular device, comprising:
- a core having a proximal section and a distal section;
- an outer tube coupled to the core such that the distal section of the core passes into and is encompassed by the outer tube, the outer tube and the core defining an annular space between an inner surface of the outer tube and the distal section of the core disposed within the outer tube, wherein an outer diameter of the outer tube is greater than an outer diameter of the proximal section of the core;
- a distal coil encompassing part of the distal section of the core;
- a proximal coil disposed proximal of the distal coil and encompassing part of the distal section of the core;
- a bushing coil disposed over the distal coil and the proximal coil;
- and
- a bushing disposed at a proximal end of the outer tube to aid in coupling the outer tube to the core,
- wherein the bushing comprises a chamfered or beveled proximal edge and a chamfered or beveled distal edge.
Dependencies are inferred from the claim text.