Single use safety syringe having a retractable needle

Details Single use safety syringe having a retractable needle Single use safety syringe having a retractable needle

A - Human Necessities

61

M

A61M 5/32 (2006.01) A61M 5/50 (2006.01)

Patent

CA 2621479

A single use safety retractable syringe (10) having a retractable needle (20) is disclosed. The syringe includes a hollow barrel (11), a plunger (13) which slideably fits in the barrel, and a piston (13) which fits on the forepart of the plunger. The syringe also includes an actuator mechanism (14), which is located in the forepart of the barrel. The actuator mechanism has a stem (18) for supporting a needle hub (15). Means (24) are provided on the end of the plunger to engage the actuator and cause it to retract with the needle upon completion of the injection.

La présente invention concerne une seringue jetable de sécurité rétractable(10) comprenant une aiguille rétractable (20). La seringue comprend un cylindre creux (11), un plongeur (13) qui glisse dans le cylindre et un piston (13) qui s~adapte sur la partie antérieure du plongeur. La seringue comprend aussi un mécanisme actionneur (14) qui se situe dans la partie avant du cylindre. Le mécanisme actionneur comprend une tige (18) qui supporte un pavillon d~aiguille (15). Des moyens (24) sont fournis à l~extrémité du plongeur pour engager l~actionneur et le faire se rétracter avec l~aiguille à la fin de l~injection.

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