Medical graft products with differing regions and methods and systems for producing the same
First Claim
1. A medical graft product, comprising a multilaminate construct having two or more layers of remodelable collagenous extracellular matrix (ECM) material bonded to one another, the multilaminate construct having a first region in which the layers are bonded to one another during a drying method other than lyophilization and a second region in which the layers are bonded to one another during a lyophilization drying method, wherein the first bonded region comprises collagenous ECM material having a more collapsed matrix structure relative to the second bonded region, and wherein the second bonded region comprises lyophilized collagenous ECM material having a more open matrix structure than the first bonded region.
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Accused Products
Abstract
Described are methods and systems for drying remodelable materials, such that selective regions of the remodelable materials have differing properties. Also described are medical graft products having selective regions of differing material properties. Advantageous remodelable materials include collagenous extracellular matrix material, such as small intestine submucosa.
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Citations
17 Claims
- 1. A medical graft product, comprising a multilaminate construct having two or more layers of remodelable collagenous extracellular matrix (ECM) material bonded to one another, the multilaminate construct having a first region in which the layers are bonded to one another during a drying method other than lyophilization and a second region in which the layers are bonded to one another during a lyophilization drying method, wherein the first bonded region comprises collagenous ECM material having a more collapsed matrix structure relative to the second bonded region, and wherein the second bonded region comprises lyophilized collagenous ECM material having a more open matrix structure than the first bonded region.
Specification