US 12,138,408 B2
Advanced actuating mechanism and method of operation for fluid displacement and pressurizing device
Rowland W. Kanner, Guntersville, AL (US); Jonathan Collins, Arab, AL (US); and Emma Catherine Shirley McCain, Easley, SC (US)
Assigned to Atrion Medical Products, Inc., Arab, AL (US)
Filed by Atrion Medical Products, Inc., Arab, AL (US)
Filed on Jun. 20, 2023, as Appl. No. 18/211,990.
Application 18/211,990 is a continuation of application No. 17/965,476, filed on Oct. 13, 2022.
Claims priority of provisional application 63/256,311, filed on Oct. 15, 2021.
Prior Publication US 2023/0330395 A1, Oct. 19, 2023
Int. Cl. A61M 25/10 (2013.01); A61F 2/95 (2013.01); A61F 2/958 (2013.01); F04B 35/01 (2006.01)
CPC A61M 25/10182 (2013.11) [A61F 2/9517 (2020.05); A61F 2/958 (2013.01); F04B 35/01 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A system comprising:
a catheter;
a fluid displacement and pressurizing device coupled to the catheter;
the fluid displacement and pressurizing device comprising:
a housing; a first piston in the housing; a plunger which extends from the housing and has a second piston thereon; and an actuator which, when the second piston is in a first position within the fluid displacement and pressuring device, locks the first piston to the housing, and when the second piston is in a second position within the fluid displacement and pressuring device, locks the first piston to the plunger, wherein the first piston is locked to the housing when the second piston is in the first position within the fluid displacement and pressuring device and wherein the first piston is locked to the plunger when the second piston is in the second position within the fluid displacement and pressuring device; and
an inflatable device in fluid communication with the fluid displacement and pressurizing device so that operation of the fluid displacement and pressurizing device inflates the inflatable device.