Steel cannula for spinal and peridural anaesthesia

Details Steel cannula for spinal and peridural anaesthesia Steel cannula for spinal and peridural anaesthesia

1987-12-07

1989-06-27

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

604274, A61M 500

Patent

active

048425850

ABSTRACT:
The front end of the guide channel of a steel cannula is provided with an oblique guide surface adapted to direct an inserted catheter to the outside in order to project out of the tube. The ground surface surrounding the opening is of funnel wall design. Due to the steel cannula, a catheter may be applied by means of a simple cannula without the probable risk of being cut or damaged.

REFERENCES:
patent: 2634726 (1953-04-01), Hanson
patent: 2922420 (1960-01-01), Cheng
patent: 4413993 (1983-11-01), Guttman
patent: 4552554 (1985-11-01), Gould et al.
patent: 4645491 (1987-02-01), Evans

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