Guidewire with variable coil configuration

Details Guidewire with variable coil configuration Guidewire with variable coil configuration

1998-06-29

2000-10-31

O'Connor, Cary

Surgery

Diagnostic testing

Flexible catheter guide

604 96, A61B 500

Patent

active

061395110

ABSTRACT:
The present invention is directed to a guidewire having an elongate core member with a proximal section and a distal section. The distal section has at least one tapered segment, wherein the elongate core member tapers distally to a reduced diameter. Preferably, the tapered segments of the distal section of the elongate core member are marked with radiopaque markers to indicate where a tapered segment begins or ends. A proximal coil having a rectangular cross section and at least one distal coil having a round cross section are disposed around at least a portion of the distal section of the elongate core member. The proximal end of the proximal coil is attached to the distal section of the elongate core member. The distal coils can be made of a material that is radiopaque or non-radiopaque. If one of the distal coils is radiopaque, it may be made from a radiopaque material or it may be made of a hollow tube of non-radiopaque material that is filled with material that is at least partially radiopaque. The proximal end of the distal most coil is attached to the distal end of the proximal coil, and the distal end of the distal most coil is attached to the distal section of the elongate core member.

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Magic Torque, Ref. 46-592, Package Includes 1 guidewire, 1 torque vise, Lot Number 418849, Expiration date 1999-10, Meditech, Boston Scientific Corporation, 480 Pleasant Street, Watertown, MA 02172 (617) 923-1720/(800) 225-3238. Instructions for use 801444-02, Rev. 4/94.

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