Automatic injecting syringe apparatus

A syringe apparatus for injecting a medicament, comprising:

• a) housing:
• b) a syringe barrel supported by the housing and having an interior for holding said medicament;
• c) a piston movably disposed within the interior of the syringe barrel for ejecting the medicament from the barrel, the piston being movable between retracted and dispensing portions;
• d) a cam supported by the housing for operating the piston to move between retracted and dispensing positions, the cam being movable between loaded and dispensing positions;
• e) the housing including an upper transversely extending section with an external surface and a cocking mechanism that includes an externally positioned handle that slides on the outer surface of the upper section;
• f) the handle having a connection with the cam so that when the handle slides upon the upper section, the cam can be cocked into the loaded position;
• g) a trigger for releasing the cam when the cam is in the loaded position;
• h) wherein the upper section of the housing has at least one slot that enables a connection to be formed between the handle and cam;
• and
• wherein there are a pair of opposed slots that enable a connection to be formed between the handle and the cam.

A syringe apparatus for injecting a medicament, comprising:

• a) a housing;
• b) a syringe cartridge that includes an outer barrel and a piston, said cartridge being removably supported by the housing and having an interior for holding said medicament;
• c) said piston movably disposed within the interior of the syringe barrel for ejecting the medicament from the barrel, the piston being movable between retracted and dispensing positions;
• d) a cam supported by the housing for operating the piston to move between retracted and dispensing positions, the cam being movable between loaded and dispensing positions;
• e) the housing including an upper transversely extending section with an external surface, a hollow interior, and a cocking mechanism that includes an externally positioned handle that is curved to extend to opposite sides of the housing and that slides on the external surface of the upper section;
• f) the handle having a connection with the cam so that when the handle slides upon the upper housing section, the cam can be moved into the loaded position;
• and
• g) a trigger mechanism for holding the cam in the loaded position and for selectively releasing the cam by operating the trigger when the cam is in the loaded position.