0347742-A1 is referenced by 37 patents and cites 6 patents.

According to the invention, the disposable safety syringe comprises means (18) for retaining the empty needle (17) in a use position, which means are disengageably actable upon a bushing (16) for mounting a needle, the which bushing is retractably inserted into the needle-holder head (12) of the syringe body (11); means (13.4/16.5) for the inseparable coupling between the bushing (16) and the plunger (13) of the syringe, achieving this coupling at the end of the stage for injecting the liquid contained in the syringe body; ; means (10) for disengaging the retaining means (18) from the bushing (16), driven by the plunger and achieving disengagement at the end of the stage for injecting the liquid contained in the syringe body, substantially in step with the action for inseparable coupling between bushing (16) and plunger (13), in addition to means (10.1) for automatically returning the plunger to a retracted position within this syringe body at the end of the stage for injecting the liquid contained in the syringe body, functioning automatically upon cessation of the manual action exerted on the plunger, in such a way that the plunger is automatically retracted into the syringe body, and in a manner integral to and inseparable from the plunger, the empty needle and its mounting bushing are likewise automatically retracted into a safety position in the syringe body.

Title
Disposable safety syringe.
Application Number
EP19890110840 19890615
Publication Number
0347742 (A1)
Application Date
June 15, 1989
Publication Date
December 27, 1989
Inventor
Venturini Aldo
Assignee
Venturini Aldo
IPC
A61M 05/32
A61M 05/50
A61M 05/32
A61M 05/50
A61M 05/32
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