Apparatus and methods for delivery of braided prostheses
First Claim
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1. A method for delivering a prosthesis to a body lumen, said method comprising:
- positioning a delivery catheter carrying a tubular prosthesis at a target site within the body lumen;
everting the tubular prosthesis so that an inside surface is exposed radially outwardly and advanced over a desired length of a wall of the body lumen, wherein the prosthesis radially expands into engagement with an inner wall of the body lumen and applies a radially outward force against the inner wall as the prosthesis is everted and advanced; and
deploying a portion of the tubular prosthesis having the desired length, wherein a second length of the tubular prosthesis remains carried within the delivery catheter.
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Abstract
Blood vessels and other body lumens are expanded using an evertible braided prosthesis. The braided prosthesis is delivered to the blood vessel in a radially collapsed configuration. A leading edge of the braided prosthesis is then everted so that it expands as it is advanced through the blood vessel. Optionally, the prosthesis can be provided with a biologically active substance in order to inhibit hyperplasia or have other desired biological effects.
264 Citations
18 Claims
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1. A method for delivering a prosthesis to a body lumen, said method comprising:
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positioning a delivery catheter carrying a tubular prosthesis at a target site within the body lumen; everting the tubular prosthesis so that an inside surface is exposed radially outwardly and advanced over a desired length of a wall of the body lumen, wherein the prosthesis radially expands into engagement with an inner wall of the body lumen and applies a radially outward force against the inner wall as the prosthesis is everted and advanced; and deploying a portion of the tubular prosthesis having the desired length, wherein a second length of the tubular prosthesis remains carried within the delivery catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for delivering a prosthesis to a body lumen, said apparatus comprising:
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a catheter having a passage; a metallic tubular prosthesis carried in the passage at least partially in a radially collapsed configuration, wherein the metallic tubular prosthesis comprises a braided metal structure; and a slidable member in the catheter for advancing the prosthesis from the passage so that said prosthesis everts and radially expands as it is advanced wherein the prosthesis radially expands into engagement with an inner wall of the body lumen and applies a radially outward force against the inner wail as the prosthesis is everted and advanced. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification