Sheath for self-expanding stents
First Claim
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1. A catheter assembly for delivering an endoprosthesis within a body lumen, comprising:
- a catheter;
an expandable member;
an endoprosthesis disposed on the expandable member; and
a biocompatible material positioned on the endoprosthesis, wherein the biocompatible material is configured to prevent expansion of the endoprosthesis.
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Abstract
A catheter assembly for delivering an endoprosthesis within a body lumen. A delivery catheter assembly is provided which includes a stent with biocompatible material thereon for preventing the stent from expanding or otherwise dislodging from the catheter. The stent with biocompatible material is secured to an expandable member of a delivery catheter, whereby inflation of the expandable member causes the biocompatible material to fail, thereby permitting the stent to expand and deploy in a body lumen.
61 Citations
19 Claims
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1. A catheter assembly for delivering an endoprosthesis within a body lumen, comprising:
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a catheter;
an expandable member;
an endoprosthesis disposed on the expandable member; and
a biocompatible material positioned on the endoprosthesis, wherein the biocompatible material is configured to prevent expansion of the endoprosthesis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An endoprosthesis for deployment in a body lumen, comprising:
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a stent; and
a biocompatible material positioned on the endoprosthesis, wherein the biocompatible material is configured to prevent expansion of the endoprosthesis. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method of delivering an endoprosthesis into a desired location within a body lumen, the method comprising:
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providing a catheter assembly including a catheter, an expandable member, an endoprosthesis disposed on the expandable member, and a biocompatible material positioned on the endoprosthesis, wherein the biocompatible material is configured to prevent expansion of the endoprosthesis but also to fail under sufficient pressure;
advancing the catheter, the expandable member, and the endoprosthesis through the body lumen;
positioning the expandable member and endoprosthesis at a desired location;
deploying the endoprosthesis and biocompatible material at the desired location, including the step of expanding the expandable member so as to cause the biocompatible material to fail and the endoprosthesis to expand;
contracting the expandable member;
withdrawing the catheter, the expandable member, and the sheath from the body lumen; and
leaving the endoprosthesis and biocompatible material at the desired location within the body lumen.
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Specification