Method of making a fuseless soft tip catheter

Details Method of making a fuseless soft tip catheter Method of making a fuseless soft tip catheter

1996-05-13

1998-12-22

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With twining, plying, braiding, or textile fabric formation

26417112, 26417127, 26417128, 26417314, 26417315, 2642093, 2642102, B29C 4706, B29C 4406

Patent

active

058514643

ABSTRACT:
A catheter having an elongated tubular body with a distal end, a proximal end and at least one lumen extending therebetween. The body is made from three layers of extruded plastic which adhere to each other. The body has an inner and outer layer made from a polymer, and a middle layer also made from a polymer. The middle layer is more flexible and has a lower melt temperature than the inner and outer layers. The catheter further includes an integral fuseless distal tip. The distal tip is made from the middle layer and no more than one of the inner and outer layers. The distal tip is softer than portions of the body proximal thereto. In accordance with another aspect of the present invention, there is provided a method of making a fuseless soft tip tubular catheter, of the type described above. The method involves extruding the catheter so as to form the tubular body having the inner, outer and middle layers. Thereafter, at least the distal end of the catheter is heated so as to form a distal tip. The distal tip is made from the middle layer and no more than one of the inner and outer layers. The distal tip is softer than portions of said body proximal thereto.

REFERENCES:
patent: 3762986 (1973-10-01), Bhuta et al.
patent: 4316870 (1982-02-01), Rowley
patent: 4321226 (1982-03-01), Markling
patent: 4551292 (1985-11-01), Fletcher et al.
patent: 4596563 (1986-06-01), Pande
patent: 4627844 (1986-12-01), Schmitt
patent: 4636346 (1987-01-01), Gold et al.
patent: 4705511 (1987-11-01), Kocak
patent: 4764324 (1988-08-01), Burnham
patent: 4790831 (1988-12-01), Skribiski
patent: 4948643 (1990-08-01), Mueller
patent: 5226899 (1993-07-01), Lee et al.
patent: 5318032 (1994-06-01), Lonsbury et al.
patent: 5403292 (1995-04-01), Ju
patent: 5439454 (1995-08-01), Lo et al.
patent: 5451206 (1995-09-01), Young
patent: 5451209 (1995-09-01), Ainsworth et al.
patent: 5468221 (1995-11-01), Schoner
patent: 5484565 (1996-01-01), Larsen et al.
patent: 5554139 (1996-09-01), Okajima
patent: 5599325 (1997-02-01), Ju et al.
patent: 5614136 (1997-03-01), Pepin et al.
patent: 5662665 (1997-09-01), Wang
patent: 5667499 (1997-09-01), Welch et al.

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