Method and apparatus for traversing blood vessels

Details Method and apparatus for traversing blood vessels Method and apparatus for traversing blood vessels

1983-11-02

1985-07-23

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

A61M 2500

Patent

active

045306982

ABSTRACT:
Disclosed is a method for obtaining access to a relatively inaccessible region of a blood vessel for diagnostic or therapeutic purposes in which a primary catheter tube is inserted into the vascular system at an entry point remote from the relatively inaccessible region, the leading end of the tube is worked towards the inaccessible region in a conventional manner and then a secondary catheter tube contained within the primary tube is everted from the leading end of the primary tube to approach more closely to the required region. A catheter assembly for performing the method is also disclosed.

REFERENCES:
patent: 3168092 (1965-02-01), Silverman
patent: 3433214 (1969-03-01), Silverman
patent: 3433215 (1969-03-01), Silverman
patent: 3502069 (1970-03-01), Silverman
patent: 3525329 (1970-08-01), Zeimer et al.
patent: 3911927 (1975-10-01), Rich et al.
patent: 3934576 (1976-01-01), Danielsson
patent: 4077610 (1978-03-01), Masuda
patent: 4182342 (1980-01-01), Smith
patent: 4243040 (1981-01-01), Beecher

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