Patent ID: 6312412
Filing Date: 2001-11-06
Classification: A61M

Abstract:
A painless injection apparatus, comprising:a first injector having a needle, a plunger, and a storage chamber storing a numbing agent;a second injector having a needle, a plunger, and a storage chamber storing a medication;a housing accommodating the first and second injectors;a plunger actuation device coupled to both the first and second injectors, the plunger actuation device operable to sequentially actuate the plungers of the first and second injectors to first inject the numbing agent at a first predetermined depth and to second inject the medication at a second predetermination depth into a patient's tissues, and wherein the plunger actuation device includes a mechanism for retracting the needles of the first and second injectors within the housing, the plungers of the first and second injectors being actuated by a single actuation of the plunger actuation device.