End of dose indicator

Details End of dose indicator End of dose indicator

A - Human Necessities

61

M

A61M 5/31 (2006.01) A61M 5/315 (2006.01)

Patent

CA 2108586

ABSTRACT OF THE DISCLOSURE This invention provides an improvement in injection syringes by providing for a sound as an indication that the complete dose has been administered. The end of dose indictor of this invention is operatively associated with the dose knob of a injection syringe which is raised to set the dose and pushed to inject the dose. The improvement comprises a means for producing a sound which is set to produce a sound when the dose knob is pushed to the end of the dose and also includes a means for resetting the above means when pressure is released from the dose knob after the dose is injected.

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