B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
B23P 11/02 (2006.01) A61M 25/00 (2006.01) B29C 53/56 (2006.01) B29C 70/82 (2006.01) B29D 23/00 (2006.01) D01D 5/24 (2006.01) B29C 35/08 (2006.01) B32B 31/30 (1995.01)
Patent
CA 2157021
An ultra small diameter reinforced catheter or the like type of tubular product is produced by winding reinforcing strands (20) on the surface of a plastic tube (22) and introducing the same into a heated die (16) which compresses the strands (20) against the tubing (22) and at the same time heats and softens superficial portions of the tubing wall with both conductive and radiant heat. This allows the strands to sink into the tubing wall. Following this, the compression and the conductive heating are removed while the tubing continues to be exposed to radiant heat from the die. During this last stage (III), the tension in the strands induces the strands to assume a predetermined position between the inner and outer surfaces of the tubing.
Burnham Warren R.
Gowling Lafleur Henderson Llp
LandOfFree
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