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US 5,201,745 AGranted
Visceral surgery patch
AssigneeImedex
InventorsJean-Louis Tayot, Jacques Marescaux, Henri Dumas, Michel Tardy
Life of this patent
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Abstract
A patch for visceral surgery is made from a biomaterial consisting of two layers of collagen superimposed and closely combined, namely a porous adhesive layer of fibrous collagen and a film of collagen and/or gelatin.
Claims14
A visceral surgery patch which is fully biodegradable comprising:
- a first biodegradable layer forming a film selected from the group consisting of biodegradable collagen, gelatin and mixtures thereof, and
- a second biodegradable porous layer of fibrous biodegradable collagen,
- said first and second biodegradable layers being directly superimposed and said first biodegradable layer at least partially impregnating said second biodegradable layer, and said patch having a density of at most 8 mg/cm.sup.2.
Dependencies are inferred from the claim text.