Tubing

Details Tubing Tubing

1994-04-20

1996-07-09

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604282, 128656, A61M 2500

Patent

active

055339859

ABSTRACT:
Differential stiffness tubing for medical products, such as catheters, and a method and apparatus for making the tubing. The tubing has a stiff section and a flexible section joined by a relatively short transition section in which the materials of the stiff and flexible sections are wedged into each other in a smooth gradual manner to produce an inseparable bond between the materials without abrupt joints. The tubing is made using a resin modulating system and a unique co-extrusion head that minimize the length of the transition section by minimizing the volumes in all flow channels of the head.

REFERENCES:
patent: 4250072 (1981-02-01), Flynn
patent: 4283447 (1981-08-01), Flynn
patent: 4739768 (1988-04-01), Engelson
patent: 4863442 (1989-09-01), DeMello et al.
patent: 5005587 (1991-04-01), Scott
patent: 5125913 (1992-06-01), Quackenbush
patent: 5156857 (1992-10-01), Wang et al.
patent: 5167647 (1992-12-01), Wijkamp
patent: 5221270 (1993-06-01), Parker
patent: 5279596 (1994-01-01), Castaneda et al.
patent: 5308342 (1994-05-01), Sepetka et al.
Paper published by J. G. Schwaegerle and W. R. Deaton at the 1993 SPE (Society of Plastics Engineers), Antec Meeting (May 1993).
Putnam Plastics Corporation's advertisement.

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