US 11,717,612 B1
Multi-purpose automatic injector
Robert Backstein, Toronto (CA)
Filed by Robert Backstein, Toronto (CA)
Filed on Nov. 25, 2022, as Appl. No. 17/994,146.
Claims priority of provisional application 63/406,689, filed on Sep. 14, 2022.
Int. Cl. A61M 5/20 (2006.01); A61M 5/315 (2006.01); A61B 5/15 (2006.01)
CPC A61M 5/2066 (2013.01) [A61B 5/150122 (2013.01); A61M 5/31578 (2013.01); A61M 2205/36 (2013.01); A61M 2205/50 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multi-purpose automatic injector for use with a syringe containing a first medicament and having a needle attached to one end thereof and a plunger inserted into said syringe at another end thereof and being slidably displaceable with respect thereto, comprising:
a base unit having a forward end and a rearward end and arranged along a longitudinal axis;
a cartridge containing a second medicament, said cartridge being coupled adjacent to the forward end of said base unit;
a drive assembly attached to said base unit and configured to be operatively coupled with said syringe;
wherein, in a first mode of operation, said drive assembly is configured to displace said syringe with said needle relative to said base unit, such that said needle moves relative to said cartridge in a reciprocating manner; and in a second mode of operation, said drive assembly is configured to displace said plunger rod relative to said syringe to effect ejection of fluid therefrom.