Syringe with oscillating needle
AssigneeMicro-Mega S.A.
InventorMarcel Garnier
Life of this patent
Estimating the term…
Abstract
Anaesthetic may be injected directly into the bone using a syringe in combination with a mechanism for causing the syringe needle to oscillate about its axis. The mechanism may be driven by a drive unit of the type conventionally used to power dental instruments.
Claims5
In a syringe for injecting an anaesthetic or other liquid comprising a container for such liquid, a needle, and handle means responsive to pressure of the handle to cause liquid to be ejected from the needle and a manually rotatable wheel for rotating said needle, the improvement comprising power means for driving said wheel in oscillating back and forth rotation so as to effect back and forth oscillation of the needle about its axis during the injection operation.
Dependencies are inferred from the claim text.