Apparatus and methods for delivering prostheses to luminal bifurcations
First Claim
Patent Images
1. A delivery catheter comprising:
- a catheter shaft having a proximal end and a distal end;
an expansion member disposed near the distal end of the shaft;
an expandable prosthesis mounted over the expansion member; and
a guidewire structure disposed over the expansion member, beneath a proximal portion of the prosthesis, and extending to a holding location spaced proximally of a side hole of the prosthesis by a distance of at least 1 mm,wherein the side hole of the prosthesis comprises an enlarged cell distinguishable from the adjacent or remaining structure of the prosthesis, andwherein the side hole of the prosthesis is configured to bridge the circumference of a side branch ostium after the prosthesis is expanded in a main branch vessel.
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Accused Products
Abstract
A catheter for delivering luminal prostheses comprises a catheter body having an expandable member near a distal end. The prosthesis has a side hole, and a guidewire extends beneath a proximal portion of the prosthesis and over the exterior of the expandable member. A distal end of the guidewire is retracted proximally from the closest point on the side opening to reduce possible interference with catheter advancement.
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Citations
26 Claims
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1. A delivery catheter comprising:
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a catheter shaft having a proximal end and a distal end; an expansion member disposed near the distal end of the shaft; an expandable prosthesis mounted over the expansion member; and a guidewire structure disposed over the expansion member, beneath a proximal portion of the prosthesis, and extending to a holding location spaced proximally of a side hole of the prosthesis by a distance of at least 1 mm, wherein the side hole of the prosthesis comprises an enlarged cell distinguishable from the adjacent or remaining structure of the prosthesis, and wherein the side hole of the prosthesis is configured to bridge the circumference of a side branch ostium after the prosthesis is expanded in a main branch vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A delivery catheter comprising:
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a catheter shaft having a proximal end and a distal end; an expansion member disposed near the distal end of the shaft; an expandable prosthesis having a side mounted over the expansion member; and a guidewire disposed over the expansion member and beneath at least a proximal portion of the prosthesis, said guidewire being advanceable through a side hole of the prosthesis, wherein a proximal portion of the shaft includes a split lumen for removably receiving a proximal portion of the guidewire, wherein the side hole of the prosthesis comprises an enlarged cell distinguishable from the adjacent or remaining structure of the prosthesis, and wherein the side hole of the prosthesis is configured to bridge the circumference of a side branch ostium after the prosthesis is expanded in a main branch vessel. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A delivery catheter comprising:
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a catheter shaft having a proximal end and a distal end; an expansion member disposed near the distal end of the shaft; an expandable prosthesis mounted over the expansion member; and a guidewire structure disposed over the expansion member, beneath a proximal portion of the prosthesis, and extending to a holding location spaced proximally of a side hole of the prosthesis by a distance of at least 1 mm, wherein the side hole of the prosthesis comprises an enlarged cell distinguishable from the adjacent or remaining structure of the prosthesis, and wherein the catheter shaft is resistant to torque such that rotating the proximal end rotates the expandable prosthesis disposed near the distal end.
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26. A delivery catheter comprising:
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a catheter shaft having a proximal end and a distal end; an expansion member disposed near the distal end of the shaft; an expandable prosthesis having a side mounted over the expansion member; and a guidewire disposed over the expansion member and beneath at least a proximal portion of the prosthesis, said guidewire being advanceable through a side hole of the prosthesis, wherein a proximal portion of the shaft includes a split lumen for removably receiving a proximal portion of the guidewire, wherein the side hole of the prosthesis comprises an enlarged cell distinguishable from the adjacent or remaining structure of the prosthesis, and wherein the catheter shaft is resistant to torque such that rotating the proximal end rotates the expandable prosthesis disposed near the distal end.
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Specification