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US 2014/0180166 A1Published application
Guide wire
AssigneeCook Medical Technologies LLC
InventorAndrew P. Isch
Life of this patent
Estimating the term…
Abstract
A guide wire may include a core member and an outer coil disposed about the core member. The outer coil may be longitudinally movable relative to the core member between retracted and advanced positions. An anchor member may include an elongate wire having proximal and distal ends attached to the distal ends of the outer coil and the core member, respectively. In response to longitudinal movement of the outer coil relative to the core member, the anchor member may be movable between delivery and deployed configurations. A retaining mechanism may include a tubular member removably positionable about the core member and in abutting contact with a proximal end of the outer coil. The retaining mechanism may be engageable with the core member to inhibit longitudinal movement of the outer coil proximally relative to the core member.
Claims20
A guide wire comprising:
- a core member about a longitudinal axis of the guide wire and comprising a distal end;
- an outer coil disposed about the core member and comprising a proximal end and a distal end disposed proximal of the distal end of the core member, the outer coil extending longitudinally along a majority of a length of the guide wire and being longitudinally movable relative to the core member between a retracted position and an advanced position, the distal end of the outer coil being longitudinally spaced from the distal end of the core member by a greater distance in the retracted position than in the advanced position;
- an anchor member comprising an elongate wire extending longitudinally between the distal end of the outer coil and the distal end of the core member and comprising a proximal end attached to the distal end of the outer coil and a distal end attached to the distal end of the core member, whereby, in response to longitudinal movement of the outer coil relative to the core member, the anchor member is movable between a delivery configuration and a deployed configuration, at least a portion of the anchor member being positioned radially away from the longitudinal axis of the guide wire by a greater distance in the deployed configuration than in the delivery configuration;
- and
- a retaining mechanism comprising a tubular member removably positionable about the core member and in abutting contact with a proximal end of the outer coil, the retaining mechanism being engageable with the core member to inhibit longitudinal movement of the outer coil proximally relative to the core member.
2 more elements
A guide wire comprising:
- a core member about a longitudinal axis of the guide wire and comprising a proximal end and a distal end;
- an outer coil disposed about the core member and comprising a proximal end and a distal end, each of the proximal end and the distal end of the outer coil disposed between the proximal end and the distal end of the core member, the outer coil being longitudinally movable along the core member between a retracted position and an advanced position, the distal end of the outer coil being farther from the distal end of the core member in the retracted position than in the advanced position;
- an anchor member comprising an elongate wire extending longitudinally between the distal end of the outer coil and the distal end of the core member and comprising a proximal end fixedly attached to the distal end of the outer coil, a distal end fixedly attached to the distal end of the core member, and an intermediate portion between the proximal end and the distal end of the anchor member, whereby, in response to longitudinal movement of the outer coil relative to the core member, the anchor member is movable between a delivery configuration in which the intermediate portion of the anchor member is substantially linear and a deployed configuration in which the intermediate portion of the anchor member is bowed outward away from the longitudinal axis of the guide wire;
- and
- a retaining mechanism comprising a tubular member removably disposed about the core member and in abutting contact with the proximal end of the outer coil, the retaining mechanism being movable between a released configuration in which the core member is slidable within the retaining mechanism and an engaged configuration in which the retaining mechanism is frictionally engaged with the core member to inhibit longitudinal movement of the outer coil relative to the core member.
2 more elements
A method of placing a tubular medical device within a body lumen, the method comprising:
- introducing a guide wire through a scope and into the body lumen, the guide wire comprising a core member, an outer coil disposed about the core member, and an anchor member comprising an elongate wire comprising a proximal end attached to a distal end of the outer coil and a distal end attached to a distal end of the core member;
- moving the anchor member from a delivery configuration toward a deployed configuration by moving the outer coil distally over the core member to move the proximal end of the anchor member distally toward the distal end of the anchor member, whereby an intermediate portion of the anchor member bows radially outward away from the core member;
- positioning a retaining mechanism about the core member and in abutting contact with a proximal end of the outer coil disposed external of the body lumen;
- moving the retaining mechanism from a released configuration to an engaged configuration, whereby the retaining mechanism frictionally engages the core member to fix the outer coil in place relative to the core member to retain the anchor member in the deployed configuration.
1 more element
Dependencies are inferred from the claim text.