Porous protheses and methods for making the same wherein the protheses are formed by spraying water soluble and water insoluble fibers onto a rotating mandrel
First Claim
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1. A method of making a porous, tubular, synthetic prosthesis, comprising the steps of:
- (a) electrostatically co-spraying ingredients comprising a water soluble fibrous component and a water insoluble fibrous component onto a mold to form a prosthesis precursor, wherein the water soluble fibrous component functions as a spacer to inhibit coalescence of the water insoluble fibrous component on the mold; and
(b) removing at least a portion of the water soluble fibrous component from the precursor to form the prosthesis, said prosthesis comprising fibrous-shaped voids.
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Abstract
A porous, tubular synthetic prosthesis, prosthesis precursor, and methods of producing the same are provided. Specifically the method involves co-spraying both a water soluble and water insoluble fibrous component onto a mold to form the prosthesis precursor. The water soluble fibrous component may then be at least partially removed so as to provide a porous, tubular synthetic prosthesis.
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Citations
22 Claims
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1. A method of making a porous, tubular, synthetic prosthesis, comprising the steps of:
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(a) electrostatically co-spraying ingredients comprising a water soluble fibrous component and a water insoluble fibrous component onto a mold to form a prosthesis precursor, wherein the water soluble fibrous component functions as a spacer to inhibit coalescence of the water insoluble fibrous component on the mold; and (b) removing at least a portion of the water soluble fibrous component from the precursor to form the prosthesis, said prosthesis comprising fibrous-shaped voids. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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2. A method of making a tubular prosthesis precursor, comprising the step of co-spraying a water insoluble, fibrous component and a water soluble fibrous component onto a mold to form the tubular prosthesis precursor comprising a water soluble fibrous component and a water insoluble fibrous component.
Specification