Dilator for opening the lumen of a tubular organ

Details Dilator for opening the lumen of a tubular organ Dilator for opening the lumen of a tubular organ

1990-12-20

1992-04-28

Rosenbaum, C. Fred

Surgery

Instruments

Internal pressure applicator

A61M 2900

Patent

active

051084139

ABSTRACT:
A dilator is disclosed for use in opening the lumen of a tubular organ utilizing a expansion member made of a material having a negative Poisson ratio such as polytetrafluorethylene. The negative Poisson ratio of the expansion member enables the member, when stretched, to expand radially outwardly rather than thinning in a radial direction to perform useful work in opening the lumen in a tubular organ such as in performing coronary angioplasty.

REFERENCES:
patent: 4160448 (1979-07-01), Jackson
patent: 4405320 (1983-09-01), Cracauek et al.
patent: 4417888 (1983-11-01), Consentino et al.
patent: 4496350 (1985-01-01), Consentino
patent: 4619641 (1986-10-01), Schanzer
patent: 4654033 (1987-03-01), Lapeyre et al.
patent: 4657553 (1987-04-01), Taylor
patent: 4729766 (1988-03-01), Bergentz et al.
patent: 4941871 (1990-07-01), Ward
patent: 5019096 (1991-05-01), Fox, Jr. et al.

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