Polymeric Implant Delivery System
First Claim
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1. A delivery system for the placement of a polymeric tubular implant within a patient, comprising:
- an inner shaft comprising a distal end configured for insertion into a patient and a proximal end configured to remain outside of the patient when the distal end is inserted into the patient, at least a portion of said inner shaft having a diameter less than a diameter of the polymeric tubular implant when the polymeric tubular implant is in an unstressed configuration;
a first expandable member slidably disposed about said inner shaft, said first expandable member comprising an open distal end having a cross-sectional dimension greater than a diameter of the polymeric tubular implant when the polymeric tubular implant is in an unstressed configuration, the open distal end of said first expandable member configured for placement therein of at least a portion of the polymeric tubular implant when in an unstressed configuration, said first expandable member comprising a proximal end having a cross-sectional dimension less than a diameter of the polymeric tubular implant when the polymeric tubular implant is in an unstressed configuration;
a tubular outer shaft slidably disposed about said inner shaft, said tubular outer shaft having a distal end and a proximal end, wherein the diameter of said tubular outer shaft at its distal end is less than a cross-sectional dimension of said first expandable member at the distal end of said first expandable member, and the diameter of said tubular outer shaft at its distal end is greater than a cross-sectional dimension of said first expandable member at the proximal end of said first expandable member.
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Abstract
Delivery systems for a polymeric tubular implant, kits that include such delivery systems, and methods of treating patients by implanting tubular implants using the delivery systems. The delivery systems include an inner shaft, an expandable member slidably disposed about the inner shaft and configured to receive the tubular implant, and a tubular outer shaft disposed about the inner shaft.
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Citations
15 Claims
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1. A delivery system for the placement of a polymeric tubular implant within a patient, comprising:
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an inner shaft comprising a distal end configured for insertion into a patient and a proximal end configured to remain outside of the patient when the distal end is inserted into the patient, at least a portion of said inner shaft having a diameter less than a diameter of the polymeric tubular implant when the polymeric tubular implant is in an unstressed configuration; a first expandable member slidably disposed about said inner shaft, said first expandable member comprising an open distal end having a cross-sectional dimension greater than a diameter of the polymeric tubular implant when the polymeric tubular implant is in an unstressed configuration, the open distal end of said first expandable member configured for placement therein of at least a portion of the polymeric tubular implant when in an unstressed configuration, said first expandable member comprising a proximal end having a cross-sectional dimension less than a diameter of the polymeric tubular implant when the polymeric tubular implant is in an unstressed configuration; a tubular outer shaft slidably disposed about said inner shaft, said tubular outer shaft having a distal end and a proximal end, wherein the diameter of said tubular outer shaft at its distal end is less than a cross-sectional dimension of said first expandable member at the distal end of said first expandable member, and the diameter of said tubular outer shaft at its distal end is greater than a cross-sectional dimension of said first expandable member at the proximal end of said first expandable member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15)
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14. A delivery system for a polymeric tubular implant, comprising:
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an inner shaft comprising a distal end configured for insertion into a patient and a proximal end configured to remain outside of the patient when the distal end is inserted into the patient, at least a portion of said inner shaft having a diameter less than a diameter of the polymeric tubular implant when the polymeric tubular implant is in an unstressed configuration; a tubular middle shaft slidably disposed about said inner shaft, said tubular middle shaft comprising a distal end and a proximal end; a first expandable member connected to the distal end of said tubular middle shaft, said first expandable member comprising an open distal end having a cross-sectional dimension greater than a diameter of the polymeric tubular implant when the polymeric tubular implant is in an unstressed configuration, the open distal end of said first expandable member configured for placement therein of at least a portion of the polymeric tubular implant when in an unstressed configuration, said first expandable member comprising a proximal end having a cross-sectional dimension less than a diameter of the polymeric tubular implant when the polymeric tubular implant is in an unstressed configuration; a tubular outer shaft slidably disposed about said inner shaft, said tubular outer shaft having a distal end and a proximal end, wherein the diameter of said tubular outer shaft at its distal end is less than a cross-sectional dimension of said first expandable member at the distal end of said first expandable member, and the diameter of said tubular outer shaft at its distal end is greater than a cross-sectional dimension of said first expandable member at the proximal end of said first expandable member.
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Specification