Marker wire and process for using it
First Claim
Patent Images
1. A wire for radiologically estimating a feature of a structure in a body lumen comprising:
- a.) a flexible, elongate core wire having a distal end, a proximal end, a core radius, and an outer surface, a core wire length extending between the distal end and the proximal end, and having a region near the distal end in which the core radius varies, b.) a plurality of radio-opaque markers near the distal end and of a size, shape, and placement to allow estimation of a distance near or in the body lumen, and c.) a polymeric covering having a substantially constant radius extending proximally from near the distal end, said polymeric covering being in contact with the outer surface of the core wire for at least a portion of the core wire length that is coextensive with the region near the distal end in which the core radius varies.
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Abstract
This is a medical device, specifically used in surgery. It is a wire having distal radio-opaque markers and may be used, for instance, in endovascular procedures as a marker wire for estimating or referencing the structural attributes of internal physical features. In addition, the inventive marker wire may be used as a guide wire for a catheter used in endovascular procedures.
259 Citations
20 Claims
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1. A wire for radiologically estimating a feature of a structure in a body lumen comprising:
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a.) a flexible, elongate core wire having a distal end, a proximal end, a core radius, and an outer surface, a core wire length extending between the distal end and the proximal end, and having a region near the distal end in which the core radius varies, b.) a plurality of radio-opaque markers near the distal end and of a size, shape, and placement to allow estimation of a distance near or in the body lumen, and c.) a polymeric covering having a substantially constant radius extending proximally from near the distal end, said polymeric covering being in contact with the outer surface of the core wire for at least a portion of the core wire length that is coextensive with the region near the distal end in which the core radius varies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A wire for radiologically estimating a distance in a body lumen comprising:
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a.) a flexible, elongate core wire having a distal end, a proximal end, and an outer surface and a length extending between the distal end and the proximal end, b.) a polymeric covering extending proximally from the distal end, in contact with the outer surface of the core wire, for at least a portion of the core wire length, and c.) a plurality of radio-opaque markers exterior to the polymeric covering near the distal end and of a size, shape and placement to allow estimating of a distance near or in the body lumen. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification