Aortic root cannula

Details Aortic root cannula Aortic root cannula

1994-09-29

1997-02-18

Manahan, Todd E.

Surgery

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

Treating material introduced into or removed from body...

604165, 604256, 604 51, A61M 5178

Patent

active

RE0354597

ABSTRACT:
A cannula assembly including a tube cannula and a hollow introducer needle. At the proximal end of the cannula are three fittings: first, a first luer fitting affixed to the proximal end of the tube cannula; second, a luer fitting removably attached to the first luer fitting, this second luer fitting having a first air porous water locking plug at a proximal end penetrated by the needle; and, third, a needle handle removably attachable to the second luer fitting. The proximal end of the needle handle is blocked also by a second air porous water blocking plug. The second plug prevents escape of blood from the hollow needle upon penetration of the arterial wall. The first plug controls the rate of flow of blood to the cannula tube and allows clamping of the tube after withdrawal of the introducer needle and prior to connection to a cardioplegia supply line.

REFERENCES:
patent: 4073297 (1978-02-01), Kopp
patent: 4096860 (1978-06-01), McLaughlin
patent: 4531935 (1985-07-01), Berryessa
patent: 4531937 (1985-07-01), Yates
patent: 4596552 (1986-06-01), De Vries
patent: 4723955 (1988-02-01), Vaillancourt
patent: 4743243 (1988-05-01), Vaillancourt
patent: 4834707 (1989-05-01), Evans
patent: 4894052 (1990-01-01), Crawford
patent: 5013296 (1991-05-01), Buckberg

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