Cannula introducer

Details Cannula introducer Cannula introducer

1982-01-28

1983-10-25

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604164, 128305, A61M 500

Patent

active

044116535

ABSTRACT:
Surgical devices of the type designed to facilitate insertion of aortic cannula. A first embodiment includes a long, spring-loaded blade-carrying stylet, a housing designed to receive the stylet and a cannula that is carried and guided by the housing. The surgeon positions the distal end of the device at the point of the aorta where the cannula is to be inserted, momentarily depresses the proximal end of the stylet to make the desired cut, and advances the cannula into position using the stylet housing as a guide means. A semi-automatic embodiment advances the cannula responsive to the pulling of a trigger but retains the manual manipulation of the blade-carrying stylet. An automatic embodiment includes the trigger mechanism for inserting the cannula, and further includes a second trigger for advancing and retracting the blade-carrying stylet.

REFERENCES:
patent: 3051172 (1962-08-01), Bruchhaus
patent: 3538916 (1970-11-01), Wiles et al.
patent: 3762416 (1973-10-01), Moss et al.
patent: 4292970 (1981-10-01), Hession, Jr.

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