Process for the preparation of collagen tubes

Details Process for the preparation of collagen tubes Process for the preparation of collagen tubes

1987-04-21

1989-03-21

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With step of cooling to a temperature of zero degrees c. or...

264101, 264558, 264561, 264562, 264202, 2642091, 264234, 264236, 264232, 264340, 264345, 264347, 128DIG8, 623 1, 623 12, D01F 400, D01D 506

Patent

active

048141208

ABSTRACT:
A process for preparing collagen tubes includes extruding an aqueous gel containing about 1.5% native collagen through a cylindrical spinneret equipped with a central concentric tube designed to receive a part of a coagulation bath, followed by coagulation of the internal and external walls of the tube, leaving the spinneret in a coagulation bath constituted by about 70% acetone and 30% ammonia, followed by drying. Following drying, the collagen tube may be subjected to reticulation by dehydration carried out at about 80.degree. C. under a pressure of about 0.1 mm of Hg (vacuum) for about 24 hours. The reticulated collagen tube may eventually be subjected to a treatment which permits the introduction of azide groups onto the molecule without requiring that the collagen be coupled to any external molecule.

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