Re-loadable auto injector

Abstract

A reloadable auto injector wherein a syringe assembly is movably positioned between a first position in which the needle is accommodated inside a housing and a second position in which the needle protrudes outside the housing. The assembly comprises a syringe, a plunger rod and a plunger rod driver configured to apply a force to the plunger rod to advance the plunger rod in the syringe for delivering at least one dose of medicament. A syringe driver is configured to apply a force to the assembly thereby moving the assembly from the first position to the second position. A reload handle may be connected to the assembly so that user operation of the reload handle retracts the assembly to the first position and simultaneously reload the syringe driver to thereby ready the auto injector for delivering a further dose of medicament. The plunger rod driver is not re-activated.

1 - 68  (canceled) 
     
     
         69 . A method of reloading an auto injector, wherein a reloadable auto injector has a housing for accommodation of a needle shield and a syringe assembly, the syringe assembly comprising
 a syringe with a needle and a plunger rod driver being configured to apply a force to a plunger rod to advance the plunger rod in the syringe for delivering at least one dose of medicament,   the housing further accommodating a syringe driver configured to apply a force to the syringe assembly thereby moving the syringe from a first position to a second position in which position a dose may be delivered,   wherein the reloadable auto injector further comprises a reload handle configured to reload the auto injector for delivering a further dose of medicament,   the method comprising:   operating the reload handle
 to retract the syringe assembly to the first position, 
 to reload the syringe driver, and 
 to release the needle shield to thereby ready the auto injector for delivering a further dose of medicament; and 
   locking the syringe assembly in the first position.   
     
     
         70 . The method of  claim 69 , wherein the operating includes rotating the reload handle. 
     
     
         71 . The method of  claim 70 , further comprising transferring a rotational movement of the reload handle to a translational movement of the syringe assembly. 
     
     
         72 . The method of  claim 71 , further comprising using an intermediate component to transfer the rotational movement to the translation movement. 
     
     
         73 . A method of reloading an auto injector having a housing for accommodation of a needle shield and a syringe assembly, the method comprising:
 advancing a plunger rod in a syringe for delivering a dose of medicament, wherein the syringe includes a needle;   applying a force to the syringe assembly including the syringe using a syringe driver;   moving the syringe from a first position to a second position in which position a dose may be delivered;   operating a reload handle to retract the syringe assembly to the first position;   reloading the syringe driver; and   releasing the needle shield to thereby ready the auto injector for delivering another dose of medicament.   
     
     
         74 . The method of  claim 73 , further comprising locking the syringe assembly in the first position.