Feed device for an epidural needle

Details Feed device for an epidural needle Feed device for an epidural needle

1988-08-22

1990-01-30

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

604187, A61M 500

Patent

active

048970808

ABSTRACT:
A feeding device for an epidural needle which includes a guide rail having a guide block with a needle holder being slidable thereon is disclosed. The invention further includes a piston having a piston rod which is positioned upon the guide block with the piston rod extending into a cylinder filled with a liquid. The piston, which is positioned on the piston rod, includes flow passages for a limited flow of liquid. The feeding device of the invention allows for a reliable recognition of the epidural space of a patient by maintaining a constant feeding speed for the needle, irrespective of the feeding pressure applied.

REFERENCES:
patent: 2198666 (1940-04-01), Gruskin
patent: 4424058 (1984-01-01), Parsons et al.
patent: 4801293 (1989-01-01), Jackson

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