Catheter and cannula assembly

Details Catheter and cannula assembly Catheter and cannula assembly

1988-03-23

1989-09-05

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604280, 128774, A61M 2500

Patent

active

048634239

ABSTRACT:
The invention provides an assembly of a catheter and a cannula for cooperation therewith, wherein the catheter is provided with visible gradations disposed on the surface of the catheter adjacent its hub. The catheter cooperates with the cannula which is provided with gradations adjacent its distal tip. The arrangement in accordance with this invention allows for the accurate placement of small biological particles such as human embryos to appropriate body cavities.

REFERENCES:
patent: 1995051 (1935-03-01), Benson
patent: 3094124 (1963-06-01), Biftwell
patent: 3399668 (1968-09-01), Lundgren
patent: 4194513 (1980-03-01), Rhines et al.
patent: 4500313 (1985-02-01), Young
patent: 4738658 (1988-04-01), Magro et al.

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