US 12,214,158 B2
Systems and methods for syringe handling
Benjamin Peterson, Apple Valley, MN (US); Walter Dobrovolny, Saint Paul, MN (US); Jonathan Sanborn, Saint Louis Park, MN (US); Henry Madden, Minneapolis, MN (US); Steven Plager, Eden Prairie, MN (US); Christopher Lacy, Arden Hills, MN (US); Kevin Krautbauer, Saint Paul, MN (US); Dennis Babcock, Maple Grove, MN (US); Dean Sibik, Harris, MN (US); Benn Horrisberger, Blaine, MN (US); Grant Adams, Anoka, MN (US); and Seth Schulte, Saint Paul, MN (US)
Assigned to Smiths Medical ASD, Inc., Plymouth, MN (US)
Appl. No. 17/250,010
Filed by Smiths Medical ASD, Inc., Plymouth, MN (US)
PCT Filed May 3, 2019, PCT No. PCT/US2019/030565
§ 371(c)(1), (2) Date Oct. 30, 2020,
PCT Pub. No. WO2019/213496, PCT Pub. Date Nov. 7, 2019.
Claims priority of provisional application 62/666,413, filed on May 3, 2018.
Prior Publication US 2021/0236719 A1, Aug. 5, 2021
Int. Cl. A61M 5/145 (2006.01)
CPC A61M 5/1452 (2013.01) [A61M 2205/8206 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A syringe pump, comprising:
a housing;
a powertrain having a lead screw;
a clutch assembly including:
first and second half-nuts;
a cam having a first lobe and a second lobe, the first lobe operable to move the first and second half-nuts into engagement with the lead screw and the second lobe operable to move the first and second half-nuts into disengagement with the lead screw, wherein the first lobe is adjacent to the second lobe along a length of the cam; and
a leaf spring in communication with at least one of the first and second half-nuts; and
a plunger driver assembly including:
a flipper configured to be movable between a capture position and an open position;
a trigger connected to both the clutch assembly and the flipper; and
a biasing element configured to bias the flipper into the capture position.