Collagen device and method of preparing the same
AssigneeCodman & Shurtleff, Inc.
InventorsRobert E. Sommerich, Laurel R. Macomber
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Abstract
A laminated, bioimplantable dural graft product is configured for use as both an onlay graft and a suturable graft. The dural graft product is sufficiently pliable so as to sufficiently conform to a curvature of a tissue surface to which it is applied, such as the curved surface of a meningeal membrane. The use of the graft product can have improved properties, including suture retention strength and fluid impermeability. To use the dural graft product as an implant to replace, reinforce or strengthen bodily tissue, or to act as an adhesion barrier, the dural graft is placed in contact with bodily tissue and conforms to the curvature of the bodily tissue. Sutures can be used to maintain the contact between the dural graft and the bodily tissue.
Claims18
A bioimplantable dural graft material comprising:
- a collagen layer having planar opposed surfaces and having a plurality of pores, wherein a majority of the pores have a diameter of less than 10 micrometers;
- and
- at least one reinforcement layer disposed on at least one planar surface of the collagen layer, the reinforcement layer having a suture retention strength greater than a suture retention strength of the collagen layer wherein a combination of the reinforcement layer and collagen layer provides a suture retention strength in the range of about 2 pounds force to 4 pounds force, the reinforcement layer further being configured to conform to a curvature of a tissue.
Dependencies are inferred from the claim text.