ARTIFICIAL VALVE PROSTHESIS WITH IMPROVED FLOW DYNAMICS
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Accused Products
Abstract
An expandable venous valve having a support structure configured to enlarge the area adjacent the valve structure. The enlarged pocket areas can be created by forming an artificial sinus adjacent the valve structure in an unsupported section of vessel wall between two support frame sections.
263 Citations
57 Claims
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1-29. -29. (canceled)
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30. A radially expandable artificial valve prosthesis for implantation in a vessel having a vessel wall, comprising:
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a support structure, comprising; a proximal section comprising a first radially expandable anchoring portion having a plurality of struts interconnected by bends; a distal section comprising a second radially expandable anchoring portion having a plurality of struts interconnected by bends; the proximal and distal sections spaced apart from one another to define an intermediate section disposed between the proximal and distal sections, the intermediate section comprising a substantially open section of the support structure; a first connection strut connected with the proximal and distal sections and spanning the intermediate section; and a second connection strut connected with the proximal and distal sections and spanning the intermediate section; and a valve structure attached to the support structure and configured to selectively restrict fluid flow through the support structure by closing with changes in the fluid pressure differential across said valve prosthesis. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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56. A radially expandable artificial valve prosthesis for implantation in a vessel having a vessel wall, comprising:
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a support structure, comprising; a proximal section comprising a first radially expandable anchoring portion having a plurality of struts interconnected by bends and defining a first circumference; a distal section comprising a second radially expandable anchoring portion having a plurality of struts interconnected by bends and defining a second circumference; the proximal and distal sections spaced apart from one another to define an intermediate section disposed between the proximal and distal sections, the intermediate section comprising a substantially open section of the support structure; and first and second connection struts spanning the intermediate section and connected with the proximal and distal sections, each of the first and second connection struts connected with a first attachment point on the first circumference; and a valve structure attached to the support structure and configured to selectively restrict fluid flow through the support structure by closing with changes in the fluid pressure differential across said valve prosthesis.
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57. A radially expandable artificial valve prosthesis for implantation in a vessel having a vessel wall, comprising:
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a support structure, comprising; a proximal section comprising a first radially expandable anchoring portion having a plurality of struts interconnected by bends and defining a first circumference; a distal section comprising a second radially expandable anchoring portion having a plurality of struts interconnected by bends and defining a second circumference; the proximal and distal sections spaced apart from one another to define an intermediate section disposed between the proximal and distal sections, the intermediate section comprising a substantially open section of the support structure; and first and second curvilinear connection struts spanning the intermediate section and connected with the proximal and distal sections, each of the first and second curvilinear connection struts connected with a first attachment point on the first circumference and a second attachment point on the second circumference; and a valve structure attached to the support structure and configured to selectively restrict fluid flow through the support structure by closing with changes in the fluid pressure differential across said valve prosthesis.
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Specification