Deflectable telescoping guide catheter
First Claim
Patent Images
1. A catheter, including:
- an outer guide including an outer guide lumen, a distal end, a proximal end, and a predetermined deflection location proximate the distal end;
an occlusion balloon affixed to the distal end of the outer guide;
an inner guide including an inner guide lumen, a pre-formed distal end, and a proximal end, the inner guide movable within the outer guide lumen and displaceable beyond the distal end of the outer guide; and
an actuator mechanism located at a proximal end of the catheter, the actuator mechanism changing a bend angle at the predetermined deflection location of the outer guide, and the proximal end of the inner guide accessible at the proximal end of the catheter allowing adjustable axial displacement of the pre-formed distal end of the inner guide relative to the distal end of the outer guide.
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Abstract
A catheter employs an inner guide with a pre-formed distal tip, an outer guide with a predetermined deflection location, and a proximal actuator. The inner guide can be longitudinally extended and axially rotated relative to the outer guide. The proximal actuator can adjustably change a bend angle of the predetermined deflection location. The catheter can be deployed with the inner guide retracted inside the distal end of the outer catheter. The extensible and rotatable inner catheter can be combined with the adjustable bend angle of the outer guide to provide an improved system for accessing and cannulating venous structures.
379 Citations
24 Claims
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1. A catheter, including:
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an outer guide including an outer guide lumen, a distal end, a proximal end, and a predetermined deflection location proximate the distal end;
an occlusion balloon affixed to the distal end of the outer guide;
an inner guide including an inner guide lumen, a pre-formed distal end, and a proximal end, the inner guide movable within the outer guide lumen and displaceable beyond the distal end of the outer guide; and
an actuator mechanism located at a proximal end of the catheter, the actuator mechanism changing a bend angle at the predetermined deflection location of the outer guide, and the proximal end of the inner guide accessible at the proximal end of the catheter allowing adjustable axial displacement of the pre-formed distal end of the inner guide relative to the distal end of the outer guide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
an electrode located at distal end of at least one of the inner guide and outer guide; and
an electrical conductor coupled to the electrode, the electrical conductor extending through the inner guide or outer guide to a proximal section of the catheter.
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17. A catheter according to claim 1, further including:
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a plurality of band electrodes disposed at a distal section of at least one of the inner and outer guides; and
at least one electrical conductor connected to the band electrodes, the at least one electrical conductor extending through the inner guide or outer guide to a proximal section of the catheter.
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18. A catheter, comprising:
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an outer guide including an outer guide lumen, a distal end, a proximal end, and a predetermined deflection location proximate the distal end;
an occlusion balloon affixed to the distal end of the outer guide;
an inner guide, the inner guide movable within the outer guide lumen and displaceable beyond the distal end of the outer guide, the inner guide comprising;
an inner guide lumen, the inner guide lumen dimensioned to receive a cardiac lead;
a distal end having a pre-formed deflection proximate the distal end; and
a proximal end; and
an actuator mechanism located at a proximal end of the catheter, the actuator mechanism changing a bend angle at the predetermined deflection location of the outer guide, and the proximal end of the inner guide accessible at the proximal end of the catheter allowing adjustable axial displacement of the distal end of the inner guide relative to the distal end of the outer guide. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification