Tubular graft construct
AssigneeCook Biotech Incorporated
InventorsNeal E. Fearnot, Michael C. Hiles
Life of this patent
Estimating the term…
Abstract
Described are medical devices which are or can be used to form tubular medical devices, and related methods. Preferred devices include tubular grafts of biomaterial having lumen walls which present no seam edge that traverses the entire length of the lumen, illustratively including devices having lumen walls which have a discontinuous seam presenting multiple seam edges. Such a device may include a tubular structure formed by inserting a plurality of extensions of a biomaterial sheet through a plurality of corresponding apertures of the sheet.
Claims20
A medical device, comprising:
- a compliant sheet material harvested from a collagenous tissue source, the sheet material providing a first extension, and further having a first aperture extending through the sheet material, the first extension inserted through the first aperture such that a surface portion of the first extension overlaps an underlying surface of the sheet material to provide a multi-laminated region of said compliant sheet material, and wherein said surface portion is bonded to said underlying surface.
A medical device, comprising:
- a) a tube having a lumen extending therethrough and including a wall formed with a compliant sheet material harvested from a collagenous tissue source, the sheet material having a first side forming a surface adjacent said lumen and a second side forming an external surface of said tube;
- b) wherein the sheet material has a plurality of extensions and a plurality of apertures, with each of the plurality of apertures providing an opening extending through the sheet material,
- c) wherein each one of said plurality of extensions has a first extension portion received through a corresponding one of said plurality of apertures so as to overlie an underlying layer of material, wherein a surface of said first extension portion conforms and is bonded to the underlying layer of material by one or more of dehydrothermal bonding, crosslinking, or bonding with a resorbable or non-resorbable biocompatible bonding agent.
A medical device, comprising:
- a tube formed from a compliant sheet material, the tube having a lumen having a lumen wall, said lumen wall free from any continuous seam edge traversing the entire length of the tube, and said lumen wall including at least one multi-layer region in which a first portion of said sheet material is bonded to an underlying second portion of said sheet material.
A medical device, comprising:
- a tube having a lumen extending therethrough and including a wall formed with a compliant sheet material harvested from a collagenous tissue source, the sheet material having a first side forming a surface adjacent said lumen and a second side forming an external surface of said tube, wherein said wall has a discontinuous seam.
Dependencies are inferred from the claim text.