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US 2004/0167436 A1Published application
Elongate medical device with distal cap
AssigneeSciMed Life Systems, Inc.
InventorsBrian R. Reynolds, Peter Skujins, Dave Johnson, Alan D. Eskuri
Life of this patent
Estimating the term…
Abstract
Elongate medical devices such as guidewires can be formed from a core wire and a preformed distal cap that is configured to fit over a distal end of the core wire. The distal cap can be attached using a variety of techniques. In particular, the distal cap can be attached to the core wire using laser welding.
Claims61
An elongate medical device comprising:
- an elongate shaft having a distal end and a proximal end;
- and
- a distal cap that is formed independently of the elongate shaft, the distal cap having a distal end and a proximal end, the proximal end of the distal cap comprising an aperture configured to accept the distal end of the elongate shaft;
- wherein the distal cap, once formed, is secured to the distal end of the elongate shaft.
1 more element
A guidewire produced by a process of:
- providing a core wire having a distal end and a proximal end;
- forming a distal cap having a distal end and a proximal end, the proximal end of the distal cap comprising an aperture configured to accept the distal end of the core wire;
- positioning the distal cap over the distal end of the core wire by inserting the distal end of the core wire into the distal cap lumen;
- and
- thereafter welding the distal cap to the distal end of the core wire.
2 more elements
A guidewire comprising:
- a core wire having a distal end and a proximal end;
- and
- a distal cap having a distal end and a proximal end, the proximal end of the distal cap comprising an aperture adapted to accept the distal end of the core wire;
- wherein the distal cap is formed independently of the core wire and is subsequently attached to the distal end of the core wire.
1 more element
A method of producing a guidewire, comprising:
- providing a core wire having a distal end and a proximal end;
- providing a distal cap having a distal end and a proximal end, the proximal end of the distal cap comprising an aperture configured to fit over the distal end of the core wire;
- inserting the distal end of the core wire into the distal cap aperture;
- and
- attaching the distal cap over the distal end of the core wire.
2 more elements
A method of producing a guidewire, comprising:
- providing a core wire having a distal end and a proximal end;
- providing a tubular sleeve having a distal end and a proximal end;
- positioning the tubular sleeve over the distal end of the core wire;
- positioning a metal ball proximate the distal end of the tubular sleeve;
- and
- melting at least a portion of the tubular sleeve and the metal ball via laser or plasma welding to form an atraumatic tip.
3 more elements
A guidewire comprising:
- a core wire having a distal end and a proximal end;
- a distal cap having a distal end and a proximal end, the proximal end including a tubular structure defining a lumen configured to fit over the distal end of the core wire, the distal end defining an arcuate atraumatic surface;
- wherein the distal cap is formed independently of the core wire, and is subsequently attached to the distal end of the core wire by inserting the distal end of the core wire into the lumen and welding the distal cap to the core wire.
A guidewire comprising:
- a core wire having a distal end and a proximal end;
- and
- means of forming a distal tip, said means formed independently and then subsequently secured to the distal end of the core wire.
A method of manufacturing a medical device, comprising the steps of:
- providing a core wire having a proximal section and a distal section defining a distal end;
- providing a tubular body member having a proximal portion and a distal portion;
- attaching a tip to the distal portion of the tubular member to form a distal cap member comprising the tubular body member and the tip;
- and
- coupling the proximal portion of the tubular body to the distal end.
2 more elements
Dependencies are inferred from the claim text.