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US 2002/0165450 A1Published application
Marker wire and process for using it
AssigneeConcentric Medical, Inc.
InventorsDiana Sanchez, Ivan Sepetka, Maureen Bensing, Richard A. Helkowski
Life of this patent
Estimating the term…
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.
Claims24
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.
A wire for radiologically estimating a distance in a body lumen comprising:
- 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.
Dependencies are inferred from the claim text.