Patent ID: 8608693
Filing Date: 2013-12-17
Classification: A61M,Y10T

Abstract:
1. A needle guard for syringes, comprising: a medical cartridge having a cartridge barrel and a plunger, the plunger comprising a plunger shaft slidable within the medical cartridge, the plunger including a thumb pad on a proximal end of the shaft, a plunger flange on a distal end of the shaft, a tip extending from the plunger flange, and a piston coupled to the tip; a body having a proximal end, a distal end, and a cavity configured for receiving the medical cartridge; and a plunger locking mechanism attachable to the proximal end of the body for preventing access to the contents of the cartridge, the plunger locking mechanism including a flange with an aperture formed on an edge of the flange that, when the medical cartridge is received within the cavity of the body, is configured to allow the plunger shaft to slide within the aperture, wherein the plunger flange being larger than the aperture and abutting the flange thereby preventing the plunger from being removed from the cartridge barrel; wherein the plunger locking mechanism is attached to the proximal end of the body by mating at least one pair of opposing tab slots disposed on the proximal end of the body with at least one pair of opposing tabs disposed on the plunger locking mechanism.