EXPANDABLE VASCULAR ENDOLUMINAL PROSTHESES
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Abstract
The invention provides expandable tubular endoluminal prostheses for the treatment of atherosclerotic lesions of blood vessels, including vulnerable plaque lesions, and methods of treatment using the prostheses. Various prostheses of the invention are characterized by hoop strength suitable for treating vulnerable plaque lesions, good conformability and good apposition to vessel walls, as well as minimal coverage areas in order to minimize the inflammatory response to the implanted prostheses.
17 Citations
56 Claims
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1-13. -13. (canceled)
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14. A tubular endoluminal prosthesis for the treatment of an atherosclerotic lesion having a longitudinal axis and comprising:
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a plurality of longitudinally arranged sinusoidal backbone elements that are in-phase; a plurality of backbone-connecting elements that connect radially neighboring backbone elements, wherein the points of connection at the ends of each connecting element to radially neighboring backbone elements are separated by two wavelengths with respect to the phase of the backbone elements, and wherein each backbone-connecting elements consists of three bar segments oriented to follow the shape of the backbone elements to which connecting element are connected. - View Dependent Claims (15, 16, 17, 51)
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18-21. -21. (canceled)
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22. A tubular endoluminal prosthesis for the treatment of an atherosclerotic lesion having a longitudinal axis, comprising:
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a plurality of longitudinally arranged sinusoidal backbone elements that are in-phase; a plurality of backbone-connecting elements that connect radially neighboring backbone elements, wherein the backbone-connecting elements consist of three bar segments and wherein the points of connection at the ends of each connecting element to a radially neighboring backbone elements are separated by approximately ¼
wavelength with respect to the phase of the backbone elements. - View Dependent Claims (23, 24, 25, 26, 27, 28, 54)
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29. A tubular endoluminal prosthesis for the treatment of an atherosclerotic lesion having a longitudinal axis and comprising:
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a plurality of longitudinally arranged sinusoidal backbone elements that are in-phase; a plurality of backbone-connecting elements that connect radially neighboring backbone elements, wherein the backbone-connecting elements consist of a three bar segments having a z-configuration or mirror-z-configuration, and wherein the points of connection at the ends of each backbone-connecting element to a radially neighboring backbone element are at least approximately in phase with respect to the phase of the backbone elements. - View Dependent Claims (30, 31, 32, 33, 34, 55)
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35-41. -41. (canceled)
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42. A tubular endoluminal prosthesis for the treatment of an atherosclerotic lesion having two ends and comprising:
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a main body portion disposed between the ends of the prosthesis that consists essentially of x-shaped structural elements having four corners and small undulating connector elements, wherein each x-shaped element is connected at each of its corners to the corner of one other x-shaped element by a small undulating connector element. - View Dependent Claims (43, 44, 45, 56)
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46-50. -50. (canceled)
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52-53. -53. (canceled)
Specification