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US 11,406,791 B2Granted
Micro-fabricated guidewire devices having varying diameters
AssigneeScientia Vascular, LLC
InventorsJohn Lippert, Edward J. Snyder
Life of this patent
Estimating the term…
Abstract
Polymer catheters and guidewires for use in intravascular surgery, and more particularly polymer catheters and guidewires micro-machined with a micro-cutting machine to provide sufficient flexibility to travel through a patient's vasculature while retaining sufficient torquability to transmit torque from a proximal end to the distal end of the catheter or guidewire, and methods of producing the same.
Claims32
An intravascular device, comprising:
- an elongated member having a proximal portion and a distal portion, wherein the distal portion includes
- an outer surface,
- an inner surface, and
- a plurality of fenestrations formed therein, the fenestrations having a depth extending between the outer surface and the inner surface, and the fenestrations defining a plurality of radially extending rings and axially extending beams;
- and
- an elastomeric filling material encapsulating the distal portion and filling the full depth of the fenestrations between the outer surface and the inner surface of the elongated member.
3 more elements
An intravascular device, comprising:
- an elongated member having a proximal portion and a distal portion, wherein at least the distal portion has a modulus of about 3700 MPa to about 138 GPa and includes
- an outer surface,
- an inner surface, and
- a plurality of fenestrations formed therein, the fenestrations having a depth extending between the outer surface and the inner surface, and the fenestrations defining a plurality of radially extending rings and axially extending beams,
- wherein at least a portion of the fenestrations are arranged in a rotating pattern along a longitudinal axis of the elongated member;
- and
- an elastomeric filling material encapsulating the distal portion and filling the full depth of the fenestrations between the outer surface and the inner surface of the elongated member.
4 more elements
An intravascular device, comprising:
- an elongated member having a proximal portion and a distal portion each formed from a different material, wherein the distal portion comprises nitinol and includes
- an outer surface,
- an inner surface, and
- a plurality of fenestrations formed therein, the fenestrations having a depth extending between the outer surface and the inner surface, and the fenestrations defining a plurality of radially extending rings and axially extending beams,
- wherein at least a portion of the fenestrations are arranged in a rotating pattern along a longitudinal axis of the elongated member, and
- wherein the fenestrations of the rotating pattern are arranged along the longitudinal axis of the elongated member so that each beam or set of beams is rotated relative to an adjacent beam or set of beams by a selected angular offset within a range of about 5 degrees to about 95 degrees;
- and
- a stainless steel inner member disposed within at least a portion of a lumen of the elongated member.
5 more elements
Dependencies are inferred from the claim text.