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US 2014/0350568 A1Published application
Guide wire for use with cardiovascular lesions
AssigneeCardiosert Ltd.
InventorsAvraham Shekalim, Noam Peleg
Life of this patent
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Abstract
A guide wire includes elements in a telescoping arrangement which impart stiffness to the guide wire for maneuverability in the tortious cardiac vessels. This arrangement also creates engagements between an inner shaft and the tip, that when released, result in a tip which can move outward with forces sufficient to penetrate a lesion in the coronary vessels.
Claims22
A guide wire comprising:
- a tubular member including a proximal end and a distal end, the distal end including an elastic portion;
- a tip in communication with the distal end of the tubular member;
- and
- an inner shaft extending in the tubular member for moving between an engaged position, where the inner shaft is in a removable engagement with the tip, and a retracted position, where the inner shaft has been disengaged from the tip once retraction of the inner shaft from the tip reaches a predetermined retraction force, the disengagement causing the tip to move distally with a force corresponding to the predetermined force and the elasticity of the elastic portion of the tubular member.
1 more element
A method for penetrating a lesion in a cardiac vessel comprising:
- providing a guide wire comprising:
- a tubular member including a proximal end and a distal end, the distal end including an elastic portion;
- a tip in communication with the distal end of the tubular member;
- and
- an inner shaft extending in the tubular member for moving between an engaged position, where the inner shaft is in a removable engagement with the tip, and a retracted position, where the inner shaft has been disengaged from the tip once retraction of the inner shaft from the tip reaches a predetermined retraction force, the disengagement causing the tip to move distally with a force corresponding to the predetermined force and the elasticity of the elastic portion of the tubular member;
- moving the guide wire into a position proximate to the lesion;
- moving the inner shaft into a removable engagement with the tip;
- and
- retracting the inner shaft from the tip with a force sufficient to causing the inner shaft to disengage from the tip, such that the tip moves distally with forces sufficient to penetrate the lesion.
6 more elements
Dependencies are inferred from the claim text.