Steerable medical device
First Claim
1. A steerable device for percutaneous transluminal insertion into the coronary or peripheral vascular system and controlled negotiation of branches and turns therein, said device comprising:
- an elongate support structure having a proximal and a distal end for transmitting axial force from the proximal end of the support structure to the distal end thereof;
a steering element extending distally from the distal end of the support structure;
a fulcrum at the intersection of the support structure and the steering element; and
a core wire extending generally parallel to the support structure and secured to the steering element at a point of attachment which is distal from the fulcrum;
wherein axial movement of the core wire in a proximal direction relative to the support structure causes a lateral deflecting of the steering element distally of the fulcrum.
2 Assignments
0 Petitions
Accused Products
Abstract
A steering device, such as for use in a guidewire for percutaneous transluminal insertion into the coronary vascular system is provided. The guidewire comprises an elongate flexible housing having proximal and distal ends and at least one lumen extending through the length of the housing. The guidewire has a steering element secured within the lumen and adapted to displace the distal end of the housing in a lateral direction. At least one deflection wire extends through the flexible housing extending from a distal point of attachment to the proximal end. Axial movement of the deflection wire displaces a distal steering region of the housing in a lateral direction.
397 Citations
14 Claims
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1. A steerable device for percutaneous transluminal insertion into the coronary or peripheral vascular system and controlled negotiation of branches and turns therein, said device comprising:
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an elongate support structure having a proximal and a distal end for transmitting axial force from the proximal end of the support structure to the distal end thereof; a steering element extending distally from the distal end of the support structure; a fulcrum at the intersection of the support structure and the steering element; and a core wire extending generally parallel to the support structure and secured to the steering element at a point of attachment which is distal from the fulcrum; wherein axial movement of the core wire in a proximal direction relative to the support structure causes a lateral deflecting of the steering element distally of the fulcrum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification