Device for withdrawing injection solution

Details Device for withdrawing injection solution Device for withdrawing injection solution

1977-09-23

1979-12-25

Yasko, John D.

Surgery

Respiratory method or device

Ozone or ion generation

128221, A61M 500

Patent

active

041800710

ABSTRACT:
A device for withdrawing an injection solution wherein fine glass fragments can be readily filtered off for removal. The device comprises a tube which can cover an injection needle and has one end intimately fitted to the base portion of the needle and the other end packed with a filter medium. Because the interior of the tube is subjected to reduced pressure when the needle withdraws the injection solution from an ampule with the latter end immersed in the solution, the whole solution is withdrawn from the ampule through the filter medium.

REFERENCES:
patent: 1830453 (1931-11-01), Wassmer
patent: 2689564 (1954-09-01), Adams et al.
patent: 2827081 (1958-03-01), Little
patent: 2972991 (1961-02-01), Burke

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