Syringe, having a rod and a piston and a disconnect mechanism

摘要

PCT No. PCT/SE92/00258 Sec. 371 Date Oct. 13, 1993 Sec. 102(e) Date Oct. 13, 1993 PCT Filed Apr. 21, 1992 PCT Pub. No. WO92/18180 PCT Pub. Date Oct. 29, 1992.The invention relates to a disposable syringe which comprises a rod (5) that can be moved reciprocatingly in relation to a container (2). One end of the rod has the form of a needle (3), or can coact with a needle (3). The syringe also includes a piston (4) which coacts with the rod and which has means (6) for connecting the piston to the rod and disconnecting the piston therefrom. The rod (5) has an angled cross section and is provided with support and/or slide surfaces which coact with support and/or slide surfaces positioned peripherally on the piston (4).