Low friction inner lumen

Details Low friction inner lumen Low friction inner lumen

1994-04-11

1997-03-04

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604280, A61M 2500

Patent

active

056074042

ABSTRACT:
A catheter body with a single, centrally located guidewire lumen having an odd number of longitudinally extending, generally planar, inner wall surfaces. Each wall surface has a radius of curvature in excess of the guidewire's radius of curvature, as measured in cross section. The wall surfaces are joined to one another by longitudinally extending corner surfaces, each corner surface having a radius of curvature less than the guidewire's radius of curvature, as measured in cross section. The wall surfaces and corner surfaces are formed of alternating thicknesses to the outer diameter.

REFERENCES:
patent: 3995623 (1976-12-01), Blake et al.
patent: 4328806 (1982-05-01), Cooper
patent: 4406656 (1983-09-01), Hattler et al.
patent: 4632108 (1986-12-01), Geil
patent: 4753640 (1988-06-01), Nichols et al.
patent: 4947852 (1990-08-01), Nassi et al.
patent: 5163906 (1992-11-01), Ahmadi
patent: 5271410 (1993-12-01), Wolzinger et al.

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