US 12,214,180 B2
Pre-filled syringe safety devices and injectors, systems, and methods of use
Nicholas Love, Olathe, KS (US); and Bradley Hopper, Topeka, KS (US)
Assigned to Love Lifesciences LLC, Olathe, KS (US)
Appl. No. 18/285,671
Filed by Love Lifesciences LLC, Olathe, KS (US)
PCT Filed Apr. 7, 2022, PCT No. PCT/US2022/023878
§ 371(c)(1), (2) Date Oct. 5, 2023,
PCT Pub. No. WO2022/216959, PCT Pub. Date Oct. 13, 2022.
Claims priority of provisional application 63/172,512, filed on Apr. 8, 2021.
Prior Publication US 2024/0082506 A1, Mar. 14, 2024
Int. Cl. A61M 5/32 (2006.01); A61M 5/315 (2006.01)
CPC A61M 5/3245 (2013.01) [A61M 5/3158 (2013.01); A61M 5/3213 (2013.01); A61M 5/3271 (2013.01); A61M 2005/3247 (2013.01)] 39 Claims
OG exemplary drawing
 
1. An injector for use with a syringe having a plunger, a barrel, and a needle, the injector comprising:
a cartridge configured to support the syringe therein;
a casing including a casing distal opening, an inner surface, a sidewall, an internal volume, a slider opening extending through the sidewall, and a track defined on the inner surface, the cartridge supported within the casing;
a tube including a tube distal end, the tube slidably engaged with the cartridge and configured to be in an extended state and in a retracted state, wherein, in the retracted state, the needle of the syringe extends beyond the tube distal end and the casing distal opening;
a biasing member engaged with the cartridge and the tube so as to bias the tube in the extended state;
a ring including a protrusion, the ring engaged with the tube and the biasing member, the protrusion positioned at least partially within the track; and
a plunger slider having a first portion configured to engage with the plunger of the syringe within the internal volume of the casing, the plunger slider having a second portion extending from the first portion through the slider opening and positioned at least partially outside the casing, the second portion being depressible by a user in order to depress the plunger of the syringe,
wherein, when the cartridge supports the syringe therein and when the cartridge is supported within the casing, the barrel of the syringe is in a fixed position relative to the casing and remains in the fixed position before, during, and after depression of the plunger of the syringe.