Polymeric implant delivery system
First Claim
Patent Images
1. A method of treating a patient, comprising:
- engaging a tubular implant with a delivery catheter, said tubular implant moveable between an unstressed configuration characterized by a first diameter and a compressed configuration characterized by a second diameter less than the first diameter, and said delivery catheter 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 said first diameter of said tubular implant;
a first expandable member slidably disposed about said inner shaft, said first expandable member comprising an open distal end having a first cross-sectional dimension greater than said first diameter of said tubular implant, said open distal end of said first expandable member configured for placement therein of at least a portion of the tubular implant when in said unstressed configuration, said first expandable member comprising a proximal end having a second cross-sectional dimension than less than said first diameter of said tubular implant;
a second expandable member affixed to said inner shaft, wherein said second expandable member is configured to be at least partially placed inside of the tubular implant and wherein said second expandable member is not a balloon; and
a tubular outer shaft slidably disposed about said inner shaft, said tubular outer shaft having a distal end and a proximal end, wherein a diameter of said tubular outer shaft at its distal end is less than said first cross-sectional dimension and greater than said second cross-sectional dimension;
wherein engaging the tubular implant with the delivery catheter includes moving the tubular implant from the unstressed configuration to the compressed configuration such that the tubular implant is removably disposed between the inner shaft and the tubular outer shaft and between the first and second expandable members, wherein each of the first and second expandable members is formed from a material selected from the group consisting of mesh material and woven material;
inserting at least a portion of the delivery catheter into a body of the patient; and
disengaging the tubular implant and the delivery catheter, thereby implanting the tubular implant within the body of the patient.
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Accused Products
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
21 Claims
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1. A method of treating a patient, comprising:
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engaging a tubular implant with a delivery catheter, said tubular implant moveable between an unstressed configuration characterized by a first diameter and a compressed configuration characterized by a second diameter less than the first diameter, and said delivery catheter 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 said first diameter of said tubular implant; a first expandable member slidably disposed about said inner shaft, said first expandable member comprising an open distal end having a first cross-sectional dimension greater than said first diameter of said tubular implant, said open distal end of said first expandable member configured for placement therein of at least a portion of the tubular implant when in said unstressed configuration, said first expandable member comprising a proximal end having a second cross-sectional dimension than less than said first diameter of said tubular implant; a second expandable member affixed to said inner shaft, wherein said second expandable member is configured to be at least partially placed inside of the tubular implant and wherein said second expandable member is not a balloon; and
a tubular outer shaft slidably disposed about said inner shaft, said tubular outer shaft having a distal end and a proximal end, wherein a diameter of said tubular outer shaft at its distal end is less than said first cross-sectional dimension and greater than said second cross-sectional dimension;
wherein engaging the tubular implant with the delivery catheter includes moving the tubular implant from the unstressed configuration to the compressed configuration such that the tubular implant is removably disposed between the inner shaft and the tubular outer shaft and between the first and second expandable members, wherein each of the first and second expandable members is formed from a material selected from the group consisting of mesh material and woven material;inserting at least a portion of the delivery catheter into a body of the patient; and disengaging the tubular implant and the delivery catheter, thereby implanting the tubular implant within the body of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of treating a patient, comprising the steps of:
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compressing a tubular implant within a delivery device, said tubular implant having a first diameter when in an unstressed configuration and a second diameter less than the first diameter when in a compressed configuration and said delivery device comprising; an inner shaft comprising a distal end and a proximal end, wherein at least a portion of said inner shaft has a diameter less than the first diameter of the tubular implant and wherein the portion of the inner shaft of the delivery device having a diameter less than the first diameter of the tubular implant includes a compressible cushion; 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 the first diameter of the tubular implant and a proximal end having a cross-sectional dimension less than the first diameter of the tubular implant, wherein the first expandable members is formed from a material selected from the group consisting of mesh material and woven material;
a second expandable member affixed to said inner shaft, wherein said second expandable member is configured to be at least partially placed inside of the tubular implant and wherein said second expandable member is not a balloon; anda tubular outer shaft slidably disposed about said inner shaft, said tubular outer shaft having a distal end and a proximal end and an inner diameter less than the first diameter of the tubular implant; advancing the tubular implant over the distal end of the inner shaft, the second expandable member and the compressible cushion; advancing first expandable member distally so that at least a portion of the tubular implant is located within the distal end of the first expandable member; advancing the distal end of the tubular outer shaft over the first and second expandable members and the tubular implant, thereby compressing the tubular implant and loading it between the inner shaft and the outer shaft; withdrawing the first expandable member such that no portion of the tubular implant is located within the first expandable member; inserting the distal end of the inner shaft including the first expandable member and the tubular implant into a patient; and withdrawing the distal end of the outer shaft to expose the tubular implant, thereby permitting the tubular implant to relax away from the inner tubular member. - View Dependent Claims (17, 18, 19, 20)
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21. A method of treating a patient, comprising:
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engaging a tubular implant with a delivery catheter, said tubular implant moveable between an unstressed configuration characterized by a first diameter and a compressed configuration characterized by a second diameter less than the first diameter, and said delivery catheter 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 said first diameter of said tubular implant; a first expandable member slidably disposed about said inner shaft, said first expandable member comprising an open distal end having a first cross-sectional dimension greater than said first diameter of said tubular implant, said open distal end of said first expandable member configured for placement therein of at least a portion of the tubular implant when in said unstressed configuration, said first expandable member comprising a proximal end having a second cross-sectional dimension than less than said first diameter of said tubular implant; a second expandable member affixed to said inner shaft, wherein said second expandable member is configured to be at least partially placed inside of the tubular implant and wherein said second expandable member is not a balloon; and
a tubular outer shaft slidably disposed about said inner shaft, said tubular outer shaft having a distal end and a proximal end, wherein a diameter of said tubular outer shaft at its distal end is less than said first cross-sectional dimension and greater than said second cross-sectional dimension;
wherein engaging the tubular implant with the delivery device includes moving the tubular implant from the unstressed configuration to the compressed configuration such that the tubular implant is removably disposed between the inner shaft and the tubular outer shaft and between the first and second expandable members, wherein each of the first and second expandable members is formed from a material selected from the group consisting of at least one of a mesh material and woven material;inserting at least a portion of the delivery catheter into a body of the patient; and disengaging the tubular implant and the delivery catheter, thereby implanting the tubular implant within the body of the patient.
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Specification