US 11,964,127 B2
External driving mechanism
William D. Arthur, III, Santa Rose Beach, FL (US); Julius Stempfle, Suwanee, GA (US); and Chang-Jung Lee, Milton, GA (US)
Assigned to Atlanta Biomedical Corporation, Suwanee, GA (US)
Filed by Atlanta Biomedical Corporation, Suwanee, GA (US)
Filed on Oct. 13, 2021, as Appl. No. 17/450,754.
Prior Publication US 2023/0112837 A1, Apr. 13, 2023
Int. Cl. A61M 5/142 (2006.01); A61M 5/145 (2006.01)
CPC A61M 5/14236 (2013.01) [A61M 5/14546 (2013.01); A61M 2005/14208 (2013.01); A61M 5/1424 (2013.01); A61M 2005/14506 (2013.01); A61M 2205/3306 (2013.01); A61M 2205/332 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A syringe pump for delivering medication through a syringe with a barrel with a flange and a plunger with a plurality of plunger supports and a semi-circular push end to deliver a drug to a patient comprising:
a housing with a flange holder for receiving the flange of a syringe barrel and a plunger slot for receiving one of the plurality of plunger supports, the plunger slot extending along longitudinal direction of the syringe, the flange holder being a slot with semi circular form and the flange being inserted into the flange holder;
an electrical motor disposed inside the housing;
a plurality of gears driven by the electrical motor;
a leadscrew with a leadscrew shaft connected to the plurality of gears;
a cage housing for housing the leadscrew and for at least partially holding the plunger;
a force sensing plate mounted on a mounting support inside the housing, and
a spur gear and a worm gear mounted on an axel, and said axel passes under the force sensing plate;
wherein
the leadscrew shaft pushes against the force sensing plate, and the semi-circular push end of the plunger slides over the plunger slot when the plunger moves into the barrel of the syringe.