Guidewire torque device and method of use
AssigneeAbbott Cardiovascular Systems Inc.
InventorsPuneet Kamal Singh Gill, Raymundo Rodriguez, Jonathan Durcan, Robert Hayzelden, Michael Green
Life of this patent
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Abstract
A torque device for gripping and manipulating a guidewire for advancing the guidewire into a patient's vascular system. The torque device is configured for single-handed use and can be opened for repositioning the torque device relative to the guidewire and closed for gripping the guidewire to prevent axial and rotational movement relative to the guidewire. The torque device grips the guidewire at multiple spaced apart locations on the guidewire.
Claims24
A device for gripping a guidewire, comprising:
- a body having a distal end, a proximal end and a substantially uniform opening therethrough;
- a collet having a plurality of fingers spring biased toward an open position;
- a cap for engaging the collet and compressing the fingers of the collet when the cap is tightened to the body portion, the cap configured to receive an end of a guidewire and including an opening through which a guidewire can pass;
- a tubular sleeve having a distal end, a proximal end, and a lumen extending therethrough for receiving the collet wherein the tubular sleeve has a tapered distal end configured for sliding engagement with a first tapered face of the collet as the tubular sleeve moves distally;
- and
- a control lever attached to the body and configured for moving the tubular sleeve into and out of engagement with the collet and moving the collet into and out of engagement with the cap thereby causing a gripping surface on the fingers to compress onto the guidewire and release from the guidewire.
A method for gripping and maneuvering a guidewire, comprising:
- providing a torque device having a body, a collet having a plurality of fingers spring biased toward an open position, and a cap for engaging the collet;
- compressing the plurality of fingers of the collet by tightening the cap to the body portion, the cap configured to receive an end of a guidewire and including an opening through which a guidewire can pass;
- inserting a guidewire through the body, the collet, and the cap;
- wherein the collet has a first tapered face and a second tapered face, and wherein the tubular sleeve has a tapered distal end configured for sliding engagement with the first tapered face of the collet as the tubular sleeve moves distally, and as the tapered distal end of the tubular sleeve slides on the first tapered face of the collet the sleeve forces the collet to move distally;
- and
- depressing a control lever attached to the body and configured for moving a sleeve into and out of engagement with the collet and moving the collet into and out of engagement with the cap thereby causing a gripping surface on the fingers to compress onto the guidewire and release from the guidewire.
Dependencies are inferred from the claim text.