Prosthetic repair fabric
First Claim
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1. A prosthetic repair fabric, comprising:
- a dual layer, biologically compatible and implantable fabric including a first porous knit sheet with interstices constructed and arranged for tissue infiltration and which is susceptible to the formation of adhesions with sensitive tissue and organs and a second sheet that is joined directly to said first sheet; and
a barrier sheet that is resistant to the formation of adhesions with sensitive tissue and organs and which is overlaid and in contact with said second sheet, wherein at least a surface portion of said second sheet adjacent said barrier is fused to said barrier without degrading the physical characteristics of said first sheet.
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Abstract
A prosthetic repair fabric including a sheet of tissue infiltratable fabric and a second sheet, also preferably including tissue infiltratable fabric, which is united with the first sheet. The second sheet is fused to an adhesion resistant barrier, forming a laminate composite prosthesis without degrading the mechanical properties or tissue ingrowth capability of the first sheet.
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Citations
22 Claims
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1. A prosthetic repair fabric, comprising:
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a dual layer, biologically compatible and implantable fabric including a first porous knit sheet with interstices constructed and arranged for tissue infiltration and which is susceptible to the formation of adhesions with sensitive tissue and organs and a second sheet that is joined directly to said first sheet; and a barrier sheet that is resistant to the formation of adhesions with sensitive tissue and organs and which is overlaid and in contact with said second sheet, wherein at least a surface portion of said second sheet adjacent said barrier is fused to said barrier without degrading the physical characteristics of said first sheet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of limiting the incidence of postoperative adhesions arising from the repair of an opening in a tissue or muscle wall, wherein the opening is located near a region of potential postoperative adhesions, comprising the steps of:
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providing a composite prosthesis including a first sheet that is tissue infiltratible, a second sheet joined directly to the first sheet, and an adhesion resistant barrier sheet that is fused to the second sheet without degrading the physical and tissue infiltratible characteristics of the first sheet; and positioning the composite prosthesis with the barrier sheet extending between a region of potential postoperative adhesion and the first sheet.
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Specification