Endoprosthesis that can be percutaneously implanted in the patient's body
First Claim
1. An endoprosthesis comprising:
- an elongated hollow structure, said structure being deliverable into a body lumen for dwelling therein, said structure being expandable and having an initial state of decreased outer diameter during delivery relative to the outer diameter of said structure during dwelling, said elongated hollow structure having a continuous circumferential support along its entire length, and a lining impregnated with medication for delivery to a wall of said body lumen, said lining being continuous and connected along said structure and expandable therewith, said lining deforming plastically under pressure associated with expansion of the hollow structure, such that the lining does not crack during expansion.
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Accused Products
Abstract
An endoprosthesis in the form of an elongated hollow structure that can be implanted percutaneously with a catheter in a blood vessel or other cavity of the body and once correctly positioned will expand from an initial state with a narrow lumen into a state with a lumen that is as wide as its placement will allow. It has a lining of a wrapping material that deforms plastically without fissuring as it expands from the state with the narrow lumen to the state with the wide lumen. Another embodiment is a stent with a wrinkled lining that smoothes out as the stent expands. The lining is impregnated with at least one medication that will gradually and preferably at a uniform rate be released to the patient once the prosthesis is in place.
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Citations
27 Claims
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1. An endoprosthesis comprising:
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an elongated hollow structure, said structure being deliverable into a body lumen for dwelling therein, said structure being expandable and having an initial state of decreased outer diameter during delivery relative to the outer diameter of said structure during dwelling, said elongated hollow structure having a continuous circumferential support along its entire length, and a lining impregnated with medication for delivery to a wall of said body lumen, said lining being continuous and connected along said structure and expandable therewith, said lining deforming plastically under pressure associated with expansion of the hollow structure, such that the lining does not crack during expansion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
the lining comprises a membrane having an inner wall and an outer wall, and a space between the walls, the outer wall comprising pores for drug release; - and
the endoprosthesis further comprising a detachable medicating tube which is connected to the space.
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21. The method of claim 1 in which the medication comprises an antithrombotic, an antiproliferative, a cytostatic material, an anti-arteriosclerotic, or genetic material.
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22. An endoprosthesis comprising:
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an elongated hollow structure, said structure being deliverable into a body lumen for dwelling therein, said structure being expandable and having an initial state of decreased outer diameter during delivery relative to the outer diameter of said structure during dwelling, said elongated hollow structure having a continuous circumferential support along its entire length, and a lining impregnated with an antithrombotic medication for delivery to a wall of said body lumen, said lining being continuous and connected along said structure and expandable therewith, said lining deforming plastically under pressure associated with expansion of the hollow structure, such that the lining does not crack during expansion.
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23. An endoprosthesis comprising:
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an elongated hollow structure, said structure being deliverable into a body lumen for dwelling therein, said structure being expandable and having an initial state of decreased outer diameter during delivery relative to the outer diameter of said structure during dwelling, said elongated hollow structure having a continuous circumferential support along its entire length, and a lining impregnated with an antiproliferative medication for delivery to a wall of said body lumen, said lining being continuous and connected along said structure and expandable therewith, said lining deforming plastically under pressure associated with expansion of the hollow structure, such that the lining does not crack during expansion.
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24. An endoprosthesis comprising:
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an elongated hollow structure, said structure being deliverable into a body lumen for dwelling therein, said structure being expandable and having an initial state of decreased outer diameter during delivery relative to the outer diameter of said structure during dwelling, said elongated hollow structure having a continuous circumferential support along its entire length, and a lining impregnated with a cytostatic medication for delivery to a wall of said body lumen, said lining being continuous and connected along said structure and expandable therewith, said lining deforming plastically under pressure associated with expansion of the hollow structure, such that the lining does not crack during expansion.
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25. An endoprosthesis comprising:
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an elongated hollow structure, said structure being deliverable into a body lumen for dwelling therein, said structure being expandable and having an initial state of decreased outer diameter during delivery relative to the outer diameter of said structure during dwelling, said elongated hollow structure having a continuous circumferential support along its entire length, and a lining impregnated with an anti-arteriosclerotic medication for delivery to a wall of said body lumen, said lining being continuous and connected along said structure and expandable therewith, said lining deforming plastically under pressure associated with expansion of the hollow structure, such that the lining does not crack during expansion.
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26. An endoprosthesis comprising:
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an elongated hollow structure, said structure being deliverable into a body lumen for dwelling therein, said structure being expandable and having an initial state of decreased outer diameter during delivery relative to the outer diameter of said structure during dwelling, said elongated hollow structure having a continuous circumferential support along its entire length, and a lining impregnated with a genetic material for delivery to a wall of said body lumen, said lining being continuous and connected along said structure and expandable therewith, said lining deforming plastically under pressure associated with expansion of the hollow structure, such that the lining does not crack during expansion.
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27. An endoprosthesis comprising:
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an elongated hollow structure, said structure being deliverable into a body lumen for dwelling therein, said structure being expandable and having an initial state of decreased outer diameter during delivery relative to the outer diameter of said structure during dwelling; and
a lining impregnated with a drug for delivery to a wall of said body lumen, said lining being continuous and connected along said structure and expandable therewith, said lining deforming plastically under pressure associated with expansion of the hollow structure, such that the lining does not crack during expansion.
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Specification