Vascular prosthesis
First Claim
1. A vascular prosthesis for implantation in a living mamalian body comprising (a) an elongated tubular segment, said tubular segment having a substantially foraminous, non-complaint, hollow body portion open at both ends, said hollow body portion having a luminal surface defining a confined-flow passageway, and (b) a hydrophobic, physiologically compatible lining constituted by a polymeric material on said luminal surface and defining a thormbus-resistant flow surface that prevents platelet deposition and is free from surface irregularities greater than about 5 microns in height, depth or width, said polymeric material exhibiting a rate of platelet consumption of less than about 20×
- 108 platelets/cm2. day.
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Accused Products
Abstract
A vascular prosthesis for implantation in a living mammalian body and a method for producing same are disclosed. The vascular prosthesis has a hydrophobic polymeric layer on its luminal surface defining a substantially non-thrombogenic flow surface. The polymeric material of the layer defining the flow surface exhibits a rate of platelet consumption of less than about 20×108 platelets/cm2 ·day.
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Citations
32 Claims
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1. A vascular prosthesis for implantation in a living mamalian body comprising (a) an elongated tubular segment, said tubular segment having a substantially foraminous, non-complaint, hollow body portion open at both ends, said hollow body portion having a luminal surface defining a confined-flow passageway, and (b) a hydrophobic, physiologically compatible lining constituted by a polymeric material on said luminal surface and defining a thormbus-resistant flow surface that prevents platelet deposition and is free from surface irregularities greater than about 5 microns in height, depth or width, said polymeric material exhibiting a rate of platelet consumption of less than about 20×
- 108 platelets/cm2. day.
- View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of producing a vascular prothesis having a luminal surface, comprising the steps of:
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(a) depositing a hydrophobic, physiologically compatible polymeric material exhibiting a rate of platelet consumption of less than about 20×
108 platelets/cm2 ·
day onto said luminal surface as a layer having a thickness of at least about 100 nanometers to less than about 1.1 millimeters; and
,(b) further polymerizing the deposited polymeric material to form a substantially smooth hydrophobic lining on said luminal surface free from surface irregularites greater than about 5 microns in height, depth or width. - View Dependent Claims (6, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification