Guidewire having radioscopic tip
First Claim
Patent Images
1. A guide wire for use in medical procedures comprising:
- a. an elongate core wire having a proximal end and a distal end, the core wire including a tapered ribbon portion; and
b. a distal helix having a proximal end and a distal end wherein said distal end of said distal helix is fixedly attached to said distal end of said core wire and said distal helix includes means for providing a brighter radioscopic image at said distal end of said distal helix than at said proximal end of said distal helix.
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Abstract
An apparatus for and method of making a guide wire for use in medical procedures in general and cardiovascular procedures in particular. A core wire is formed as the inner member. A distal helix is fixedly attached to the distal end of the core wire. The core wire has tapers or is continuously tapered to achieve the desired handling characteristics. The distal helix is space wound, space wound and close wound, double wound, and/or ground to provide the desired radioscopic signature.
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Citations
11 Claims
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1. A guide wire for use in medical procedures comprising:
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a. an elongate core wire having a proximal end and a distal end, the core wire including a tapered ribbon portion; and b. a distal helix having a proximal end and a distal end wherein said distal end of said distal helix is fixedly attached to said distal end of said core wire and said distal helix includes means for providing a brighter radioscopic image at said distal end of said distal helix than at said proximal end of said distal helix. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A guidewire for use in a medical procedure, comprising:
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an elongate core wire having a proximal end and a distal end; a distal helix having a proximal end and a distal end wherein said distal end of said distal helix is fixably attached to said distal end of said core wire and said distal helix includes means for providing a brighter radioscopic image at said distal end of said distal helix than at said proximal end of said distal helix; and said distal helix being formed from a wire strand that is ribbon shaped, wherein the wire strand is doubled over from the distal end of the distal helix along a portion of the length of the distal helix. - View Dependent Claims (9, 10, 11)
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Specification