Enhanced performance guidewire
First Claim
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1. A guidewire for use in medical applications, which comprises:
- a main elongated section of uniform diameter,a tapered section of reduced diameter distal to saidmain section,a separate elongated spring safety core section welded to the end of said tapered section and which comprises a short section of uniform enlarged diameter relative to the diameter of the spring core safety section and which forms a blunted tip at the distal end of the guidewire, anda spring surrounding the elongated safety core section, said spring having a distal end joined to the enlarged tip at a weld and a proximal end joined to the tapered section.
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Abstract
The present invention represents an improved guidewire for use in medical applications designed to cross lesions/stenoses within body cavities and/or blood vessels. The guidewire is provided with a main elongated section of uniform diameter, a tapered section of reduced diameter distal to said main section, and an elongated spring safety core section distal to said tapered section and having a distal end which comprises a short section of enlarged diameter relative to the diameter of the spring core safety section and which forms a blunted tip at the distal end of the guidewire.
227 Citations
18 Claims
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1. A guidewire for use in medical applications, which comprises:
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a main elongated section of uniform diameter, a tapered section of reduced diameter distal to said main section, a separate elongated spring safety core section welded to the end of said tapered section and which comprises a short section of uniform enlarged diameter relative to the diameter of the spring core safety section and which forms a blunted tip at the distal end of the guidewire, and a spring surrounding the elongated safety core section, said spring having a distal end joined to the enlarged tip at a weld and a proximal end joined to the tapered section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification