The present invention relates to a dialysate sleeves 400, include being arranged the female electrical connection 100 for receiving male connection 200 with an electrical connector Female connector 100 is suitable for being resiliently deformed and plastically by the removal of public connector 200 deformation once receiving public connector 200. Deformation in a transverse direction. Female connector 100 preferably includes a split ring collet chuck 100, has a pair of of arm 110,120, one plays deflection, but can pivot with reception public connector 200 away from each other. By the removal of public connector 200, arm 100,120 can also include preferably being hardened by the neck (123, Fig. 1 b) that a kind of material that can be worked is formed. The plastic deformation of female connector 100 there is an advantage in that: prevent reusing for connector 100.
