Device suitable for rendering harmless the cannula of syringes

Details Device suitable for rendering harmless the cannula of syringes Device suitable for rendering harmless the cannula of syringes

1991-04-26

1992-09-15

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

A61M 500

Patent

active

051473046

ABSTRACT:
In order to render harmless disposable syringe cannulae, a metal tube of a cannula is introduced into an insertion opening of a casing that comprises two electrodes that are arranged beneath the insertion opening. An electrical circuit including the metal tube of a cannula can thus be completed for the purpose of rendering the cannula unusable. The insertion opening limits insertion motion via a stop. The insertion opening has a circular shape and permits the metal tube to be inserted only in its longitudinal direction. Positioned directly beneath insertion opening are both a first electrode comprising an insertion opening capable of accommodating a metal tube and a second electrode that permits the tip of the metal tube, having penetrated through the insertion opening of first electrode, to contact the second electrode. The second electrode is provided preferably with a sloping slide face.

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