Soft flexible catheter tip for use in angiography

Details Soft flexible catheter tip for use in angiography Soft flexible catheter tip for use in angiography

1994-09-01

1996-05-07

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604264, A61M 2500

Patent

active

055141080

ABSTRACT:
A plurality of regions of a first transverse rigidity are formed in the flexible tip portion of a catheter having a second transverse rigidity along its length which is greater than the first transverse rigidity. The regions of the lesser first transverse rigidity are formed by areas of the catheter tip having an average transverse cross-sectional area less than a transverse cross-sectional area of the remainder of the catheter apparatus. The plurality of first transverse rigidity regions are formed by a respective plurality of circumferential cut out regions in the catheter tip.

REFERENCES:
patent: D263873 (1982-04-01), Genese
patent: 1477695 (1920-04-01), Dolge et al.
patent: 3485234 (1966-04-01), Stevens
patent: 4576772 (1986-03-01), Carpenter
patent: 4596563 (1986-06-01), Pande
patent: 4661094 (1987-04-01), Simpson
patent: 4731054 (1988-03-01), Billeter et al.
patent: 4838879 (1989-06-01), Tanabe et al.
patent: 5017259 (1991-05-01), Kohsai
patent: 5088991 (1992-02-01), Weldon

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