Implantable prosthesis
First Claim
1. An implantable prosthesis for repairing a tissue or muscle wall defect, the implantable prosthesis comprising:
- a layer of repair fabric that is susceptible to tissue ingrowth and the formation of adhesions with tissue and organs, the layer of repair fabric including a first surface, a second surface opposite the first surface and an outer peripheral edge with a thickness extending from the first surface to the second surface;
a barrier layer formed of a material that is substantially free of tissue infiltratable interstices to inhibit tissue ingrowth and the formation of adhesions with tissue and organs thereto, the barrier layer extending across at least a portion of the first surface to inhibit tissue ingrowth and the formation of adhesions between the portion of the first surface and adjacent tissue and organs; and
a peripheral barrier formed of a material that is substantially free of tissue infiltratable interstices to inhibit tissue ingrowth and the formation of adhesions with tissue and organs thereto, the peripheral barrier including a section of the barrier layer extending about at least a portion of the outer peripheral edge of the layer of repair fabric and over a portion of the second surface of the layer of repair fabric adjacent the outer peripheral edge, the peripheral barrier being fixedly maintained across the entire thickness of the portion of the outer peripheral edge and the portion of the second surface to inhibit tissue ingrowth and the formation of adhesions between the portion of the outer peripheral edge of the layer of repair fabric and adjacent tissue and organs.
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Accused Products
Abstract
An implantable prosthesis and a method of repairing an anatomical defect, such as a tissue or muscle wall defect, by promoting tissue growth thereto, while limiting the incidence of postoperative adhesions between a portion of the prosthesis and tissue or organs. The prosthesis is formed of a biologically compatible, flexible layer of repair fabric suitable for reinforcing tissue or muscle and closing anatomical defects, and a barrier layer for physically isolating at least a portion of one side of the fabric from areas likely to form adhesions. A peripheral barrier extends about at least a portion of the outer peripheral edge of the repair fabric to inhibit adhesions between the outer peripheral edge and adjacent tissue and organs. The repair fabric may include an outer margin that has been melted and resolidified to render the outer peripheral edge substantially impervious to tissue ingrowth. The barrier layer may be joined to the repair fabric with connecting stitches formed from PTFE to inhibit the formation of adhesions thereto.
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Citations
14 Claims
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1. An implantable prosthesis for repairing a tissue or muscle wall defect, the implantable prosthesis comprising:
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a layer of repair fabric that is susceptible to tissue ingrowth and the formation of adhesions with tissue and organs, the layer of repair fabric including a first surface, a second surface opposite the first surface and an outer peripheral edge with a thickness extending from the first surface to the second surface; a barrier layer formed of a material that is substantially free of tissue infiltratable interstices to inhibit tissue ingrowth and the formation of adhesions with tissue and organs thereto, the barrier layer extending across at least a portion of the first surface to inhibit tissue ingrowth and the formation of adhesions between the portion of the first surface and adjacent tissue and organs; and a peripheral barrier formed of a material that is substantially free of tissue infiltratable interstices to inhibit tissue ingrowth and the formation of adhesions with tissue and organs thereto, the peripheral barrier including a section of the barrier layer extending about at least a portion of the outer peripheral edge of the layer of repair fabric and over a portion of the second surface of the layer of repair fabric adjacent the outer peripheral edge, the peripheral barrier being fixedly maintained across the entire thickness of the portion of the outer peripheral edge and the portion of the second surface to inhibit tissue ingrowth and the formation of adhesions between the portion of the outer peripheral edge of the layer of repair fabric and adjacent tissue and organs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification