Elongate medical device with distal cap
First Claim
Patent Images
1. An elongate medical device comprising:
- an elongate shaft having a distal end and a proximal end;
a distal cap comprising a metallic hypotube body portion having a distal end and a proximal end and defining a lumen extending there through, the distal cap further including a distal tip portion attached to the distal end of the hypotube body portion;
wherein the distal end of the elongate shaft extends into the lumen and is attached to the distal cap; and
a sheath disposed about at least the metallic hypotube body portion of the distal cap.
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Accused Products
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.
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Citations
29 Claims
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1. An elongate medical device comprising:
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an elongate shaft having a distal end and a proximal end; a distal cap comprising a metallic hypotube body portion having a distal end and a proximal end and defining a lumen extending there through, the distal cap further including a distal tip portion attached to the distal end of the hypotube body portion; wherein the distal end of the elongate shaft extends into the lumen and is attached to the distal cap; and a sheath disposed about at least the metallic hypotube body portion of the distal cap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A guidewire produced by a process of:
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providing a core wire having a distal end and a proximal end; forming a distal cap comprising a metallic hypotube body portion having a distal end and a proximal end, the proximal end of the hypotube configured to accept the distal end of the core wire, the distal cap further including a distal tip portion attached to the distal end of the hypotube; positioning the distal cap over the distal end of the core wire by inserting the distal end of the core wire into the proximal end of the hypotube; attaching the distal cap to the distal end of the core wire; and disposing a sheath about at least the metallic hypotube body portion of the distal cap. - View Dependent Claims (12, 13, 14, 15)
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16. A guidewire comprising:
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a core wire having a distal end and a proximal end; a distal cap comprising a metallic hypotube body portion having a distal end and a proximal end and defining a lumen extending there through, the distal cap further including a distal rip portion attached to the distal end of the hypotube; wherein the distal end of the core wire extends into the lumen of the hypotube, and is attached to the hypotube; and a sheath disposed about at least the metallic hypotube body portion of the distal cap. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A guidewire comprising:
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a core wire having a distal end and a proximal end; a sleeve of metallic material disposed on and secured to the distal end of the core wise; and a distal cap disposed about and attached to the sleeve of metallic material, the distal cap having a distal end and a proximal end the proximal end of the cap including a metallic tubular structure defining a lumen into which the sleeve of metallic material is disposed, the distal end of the cap including a metallic member attached to the tubular structure defining an arcuate atraumatic surface; wherein the distal cap is attached to the sleeve such that the sleeve is positioned between the distal end of the core wise and an inner surface of the distal cap.
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Specification