Syringe gauging, loading and injection apparatus

In a syringe gauging, loading and injection apparatus for a conventional syringe of the barrel and plunger type, said apparatus including a body for releasably supporting a syringe and an adjustable stop member for limiting the travel of the syringe plunger, the improvement comprising:

• said body including aligning means for supporting said syringe with said syringe barrel in a fixed position relative to said body and with said syringe needle extending clear of said body;
• means for adjusting the position of said stop member relative to said fixed barrel position so that said stop member may be used to vary the dosage of the syringe;
• said stop member position adjusting means including means for producing first audible and first tactile stimuli upon increasing the distance between said fixed barrel position and said stop member;
• said stimuli producing means also producing second audible and second tactile stimuli upon decreasing the distance between said fixed barrel position and said stop member;
• said first audible and tactile stimuli being of a different intensity than said second audible and tactile stimuli;
• said adjustable stop member having an operative position and an inoperative position;
• means for movably mounting said stop member so that said stop member may be moved between said operative and inoperative positions;
• said stop member inoperative position being free of engagement will said plunger for allowing alternate filling of said syringe and thereafter emptying of said syringe by movement of said plunger;
• said stop member operative position for limiting the extent of travel of said syringe plunger toward said syringe barrel fixed position for allowing partial emptying of said syringe so that the contents of the syringe may be reduced to the desired dosage and also to expel any air in said syringe prior to injecting said dosage;
• and
• said apparatus body for also supporting said syringe while said dosage is being injected.