Device for making threaded connections, including Luer lock connections

Abstract

A device comprising an outer part and an inner part accommodated in the outer part wherein longitudinal grooves are provided within the inner part so as to receive longitudinal ribs of an injection needle. Protrusions that are disposed on the outer part and recesses which are arranged within the inner part allow the inner part to be twisted only in one direction relative to the outer part while putting up resistance to said twisting movement. A spring tenses the outer part and the inner part counter to each other in an axial direction.

1 . A device comprising an outer part and an inner part, wherein the outer and inner parts are complementary and the inner part is moveable in one direction relative to the outer part against resistance.  
   
   
       2 . A device comprising an outer part and an inner part accommodated in the outer part wherein longitudinal grooves are provided within the inner part to receive longitudinal ribs of an injection needle, wherein protrusions are disposed on the outer part and recesses are arranged within the inner part to allow the inner part to be twisted only in one direction relative to the outer part while putting up resistance to said twisting, and wherein a spring tenses the outer part and the inner part counter to each other in an axial direction.  
   
   
       3 . A device for making threaded connections comprising an outer part and an inner part rotatably accommodated therein, the inner part having means for accommodating a thread-bearing connection part or an additional part that is rotationally secured to the connection part, impeding means for permitting rotation of the inner part relative to the outer part in one rotational direction only and for providing resistance to the rotation, wherein the resistance increases during the rotation up to a maximum load and subsequently falls off sharply.  
   
   
       4 . The device according to  claim 3 , wherein the means for accommodating comprises a bore in the inner part, said bore having longitudinal grooves arranged axially therein.  
   
   
       5 . The device according to  claim 3 , wherein the impeding means exhibits generally axially-directed protrusions arranged in the outer part, said protrusions working in conjunction with generally axially-directed recesses arranged in the inner part, further comprising spring means being present that press the outer part and the inner part against each other in an axial direction.  
   
   
       6 . The device according to  claim 3 , wherein the impeding means exhibits generally axially-directed recesses arranged in the outer part, the recesses working in conjunction with generally axially-directed protrusions arranged in the inner part, further comprising spring means for pressing the outer part and the inner part against each other in an axial direction.  
   
   
       7 . The device according to  claim 3 , wherein the impeding means exhibits generally axially-directed protrusions arranged in the outer part, said protrusions working in conjunction with generally tangentially-directed blades arranged on the inner part, the blades being designed to be elastic in a generally radial direction.  
   
   
       8 . The device according to  claim 3 , wherein the impeding means exhibits generally axially directed protrusions arranged on the inner part, the protrusions working in conjunction with generally tangentially directed blades arranged in the inner part, the blades being designed to be elastic in generally radial direction.  
   
   
       9 . The device according to  claim 3 , further comprising a needle protective cap placed onto the connection part.  
   
   
       10 . A loading station for the preparation of an injection device, said loading station comprising a device for making threaded connections comprising an outer part and an inner part rotatably accommodated therein, the inner part having means for accommodating a thread-bearing connection part or an additional part that is rotationally secured to the connection part, impeding means for permitting rotation of the inner part relative to the outer part in one rotational direction only and for providing resistance to the rotation, wherein the resistance increases during the rotation up to a maximum load and subsequently falls off sharply.  
   
   
       11 . The loading station according to  claim 10 , wherein the device is removeably accommodated in the loading station.  
   
   
       12 . Loading station according to  claim 11 , wherein the loading station is designed as a container for storage of parts of an injection device.