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US 7,744,545 B2Granted
Guide wire
AssigneeTerumo Kabushiki Kaisha
InventorsYouki Aimi, Hideo Satou
Life of this patent
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Abstract
A guide wire includes a wire body having a tapered portion disposed on a distal end portion thereof and having an outside diameter progressively reduced toward a distal end thereof. The guide wire includes a coil disposed in covering relation to the distal end portion of the wire body and a helically shaped wire. The coil includes an increasing wire-diameter portion where the diameter of the wire increases continuously toward a distal end thereof, the increasing wire-diameter portion being disposed in covering relation to the outer circumference of at least a portion of the tapered portion in a longitudinal direction.
Claims23
A guide wire comprising:
- a wire body having a tapered portion disposed on a distal end portion of the wire body and having an outside diameter progressively reduced toward a distal end of the taper portion, the tapered portion possessing an outer circumference;
- a coil disposed in covering relation to the distal end portion of the wire body and comprising a helically shaped wire possessing a diameter;
- wherein the helically shaped wire includes an increasing wire-diameter portion at which the diameter of the wire increases continuously in a direction toward a distal end of the increasing wire-diameter portion;
- the increasing wire-diameter portion being disposed in covering relation to the outer circumference of at least a portion of the tapered portion in a longitudinal direction;
- and
- the helically shaped wire comprising a constant wire-diameter portion where the diameter of the wire is constant, the constant wire-diameter portion being positioned adjacent to a proximal end of the increasing wire-diameter portion, the constant wire-diameter portion extending in a proximal direction from adjacent the proximal end of the increasing wire-diameter portion.
3 more elements
A guide wire comprising:
- a wire body having a tapered portion disposed on a distal end portion of the wire body and having an outside diameter progressively reduced toward a distal end of the taper portion, the tapered portion possessing an outer circumference;
- a coil disposed in covering relation to the distal end portion of the wire body and comprising a helically shaped wire possessing a diameter;
- the helically shaped wire including an increasing wire-diameter portion at which the diameter of the wire increases continuously from a proximal end of the increasing wire-diameter portion to a distal end of the increasing wire-diameter portion which is spaced from the proximal end of the increasing wire-diameter portion;
- the increasing wire-diameter portion covering the outer circumference of at least a portion of the tapered portion of the wire body in a longitudinal direction;
- and
- the helically shaped wire comprising a constant wire-diameter portion at which the diameter of the wire does not change from a distal end of the constant wire-diameter portion to a proximal end of the constant wire-diameter portion, the constant wire-diameter portion being positioned proximally of the increasing wire-diameter portion so that the distal end of the constant wire-diameter portion is positioned proximally of the distal end of the increasing wire-diameter portion.
3 more elements
A guide wire comprising:
- a wire body having a tapered portion disposed on a distal end portion of the wire body and having an outside diameter progressively reduced toward a distal end of the taper portion, the tapered portion possessing an outer circumference;
- a coil disposed in covering relation to the distal end portion of the wire body and comprising a helically shaped wire possessing a diameter;
- the helically shaped wire including an increasing wire-diameter portion at which the diameter of the wire increases continuously from a proximal end of the increasing wire-diameter portion to a distal end of the increasing wire-diameter portion;
- the increasing wire-diameter portion covering the outer circumference of at least a portion of the tapered portion of the wire body in a longitudinal direction;
- and
- the helically-shaped wire comprising a constant wire-diameter portion at which the diameter of the wire does not change from a distal end of the constant wire-diameter portion to a proximal end of the constant wire-diameter portion, the constant wire-diameter portion being positioned proximally of the increasing wire-diameter portion;
- the wire in the increasing wire-diameter portion possessing a minimum diameter at which the diameter of the wire is a smallest diameter, the diameter of the wire in the constant wire-diameter portion being equal to or less than said smallest diameter of the wire in the increasing wire-diameter portion.
4 more elements
Dependencies are inferred from the claim text.