Method and apparatus for an adjustable shape guide catheter
First Claim
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1. A catheter assembly comprising:
- an outer catheter member extending from a first distal end to a first proximal end, where the first distal end is flexible and comprises regions of varying stiffness, and has a pre-formed curvature;
the outer catheter member having a first lumen therein, the first lumen extending from the first distal end to the first proximal end, the outer catheter member further including an outer handle member coupled to the first proximal end;
a flexible inner catheter member movably disposed within the first lumen of the outer catheter member;
the inner catheter member extending from a second distal end to a second proximal end and including an inner handle member coupled to the second proximal end, the second distal end having a pre-formed curvature; and
the outer catheter member is more flexible than the inner catheter member,wherein the outer and inner catheter members are configured such that relative translation and rotation of the outer and inner catheter members causes the first distal end of the outer catheter member to assume a plurality of two and three dimensional shapes.
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Abstract
A catheter assembly includes an outer catheter member having a distal flexible end. An inner catheter member is movably disposed within the outer catheter member. Optionally, a handle assembly is coupled with the outer catheter member and the inner catheter member, where the handle assembly is adapted to slide the inner catheter member relative to the outer catheter member.
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Citations
18 Claims
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1. A catheter assembly comprising:
an outer catheter member extending from a first distal end to a first proximal end, where the first distal end is flexible and comprises regions of varying stiffness, and has a pre-formed curvature; the outer catheter member having a first lumen therein, the first lumen extending from the first distal end to the first proximal end, the outer catheter member further including an outer handle member coupled to the first proximal end; a flexible inner catheter member movably disposed within the first lumen of the outer catheter member; the inner catheter member extending from a second distal end to a second proximal end and including an inner handle member coupled to the second proximal end, the second distal end having a pre-formed curvature; and the outer catheter member is more flexible than the inner catheter member, wherein the outer and inner catheter members are configured such that relative translation and rotation of the outer and inner catheter members causes the first distal end of the outer catheter member to assume a plurality of two and three dimensional shapes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A catheter assembly comprising:
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an outer catheter member extending from a first distal end to a first proximal end, where the first distal end is flexible; the outer catheter member having a first lumen therein, the first lumen extending from the first distal end to the first proximal end, the outer catheter member further including an outer handle member coupled to the first proximal end; a flexible inner catheter member movably disposed within the first lumen of the outer catheter member; the inner catheter member extending from a second distal end to a second proximal end, the second distal end having a pre-formed curvature; the inner catheter member having a second lumen therein, the second lumen extending from the second distal end to the second proximal end and including an inner handle member coupled to the second proximal end; and the first distal end of the outer catheter member includes two or more segments of material, including a first segment and a second segment, the first segment comprising a different material than the second segment, wherein the outer and inner catheter members are configured such that relative translation and rotation of the outer and inner catheter members causes the first distal end of the outer catheter member to assume a plurality of two and three dimensional shapes. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification