Membrane for use in sutured or sutureless surgical procedures
First Claim
1. A surgically implantable article, comprising:
- a first layer of multiple adjacent non-bioabsorbable polymer structures formed from a continuous non-bioabsorable polymer layer; and
a second layer of elastomer arranged on the first layer,wherein the adjacent non-bioabsorbable polymer structures in the first layer are macroscopically discontinuous, being separated from each other by the elastomer.
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Accused Products
Abstract
An improved, polymeric surgical membrane, which can be used in a variety of surgical procedures, such as sutured and sutureless duraplasty procedures. For sutureless applications, a textured, discontinuous, outer polymer layer is provided which encourages rapid incorporation and anchoring into surrounding tissue. In cooperation with the discontinuous first layer, a second elastomeric layer provides elasticity and resilience. A third barrier layer is provided to essentially eliminate adhesions and irritation to surrounding tissue. In those applications requiring anchoring sutures, the second elastomeric layer “self-seals” against the sutures, essentially eliminating the leakage of blood, cerebrospinal fluid, or other fluids. In addition, the composite structure of the present invention has a high degree of suture retention strength is polymeric with a high degree of biocompatibility, is thin and very flexible.
43 Citations
20 Claims
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1. A surgically implantable article, comprising:
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a first layer of multiple adjacent non-bioabsorbable polymer structures formed from a continuous non-bioabsorable polymer layer; and a second layer of elastomer arranged on the first layer, wherein the adjacent non-bioabsorbable polymer structures in the first layer are macroscopically discontinuous, being separated from each other by the elastomer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A dura mater substitute, comprising:
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a first layer of multiple adjacent non-bioabsorbable polymer structures formed from a continuous non-bioabsorable polymer layer that allows for native dura mater in-growth; a second layer of elastomer arranged on the first layer, wherein the adjacent non-bioabsorbable polymer structures in the first layer are macroscopically discontinuous, being separated from each other by the elastomer; and a third layer that substantially prevents tissue in-growth. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification