Catheter having sections of variable torsion characteristics

Details Catheter having sections of variable torsion characteristics Catheter having sections of variable torsion characteristics

1988-11-14

1991-08-06

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

87 11, 604280, A61M 2500

Patent

active

050374044

ABSTRACT:
A flexible catheter comprises at least one resilient, flexible, tubular layer in telescoping relation with, and bonded to, a tubular wire sheath. A first catheter section includes the wire strands at a first angle to each other. A second catheter section includes the wire strands at a second angle to each other, with the second angle being different from the first angle so that the physical characteristics of the first and second catheter sections are different.

REFERENCES:
patent: 2437542 (1948-03-01), Krippendorf
patent: 2472483 (1949-06-01), Krippendorf
patent: 3416531 (1968-12-01), Edwards
patent: 3485234 (1969-12-01), Stevens
patent: 3585707 (1971-06-01), Stevens
patent: 3892161 (1975-07-01), Sokol
patent: 4044765 (1977-08-01), Kline
patent: 4516972 (1985-05-01), Samson
patent: 4577543 (1986-03-01), Wilson
patent: 4665604 (1987-05-01), Dubowik
patent: 4706670 (1987-11-01), Andersen et al.
patent: 4817613 (1989-04-01), Jaraczewski et al.
patent: 4830059 (1989-05-01), Silberstang

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