US 12,403,240 B2
Syringe control assembly
Todd Oda, Torrance, CA (US); George Mansour, Diamond Bar, CA (US); Eugene Mason, La Habra Heights, CA (US); and Tomas Frausto, Walnut, CA (US)
Assigned to CAREFUSION 303, INC., San Diego, CA (US)
Filed by CareFusion 303, Inc., San Diego, CA (US)
Filed on Sep. 16, 2019, as Appl. No. 16/572,384.
Prior Publication US 2021/0077711 A1, Mar. 18, 2021
Int. Cl. A61M 5/14 (2006.01); A61M 5/00 (2006.01); A61M 5/142 (2006.01); A61M 39/24 (2006.01)
CPC A61M 5/1408 (2013.01) [A61M 5/008 (2013.01); A61M 5/14236 (2013.01); A61M 39/24 (2013.01); A61M 2205/123 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A syringe control assembly, comprising:
an assembly body comprising a syringe mounting rack;
a first syringe releasably coupled to the syringe mounting rack, the first syringe comprising a first syringe body defining a first syringe cavity and a first syringe port, wherein the first syringe port is in fluid communication with the first syringe cavity;
a second syringe releasably coupled to the syringe mounting rack, the second syringe comprising a second syringe body defining a second syringe cavity and a second syringe port, wherein the second syringe port is in fluid communication with the second syringe cavity; and
a pump assembly coupled to the assembly body, the pump assembly comprising:
a first pump unit in fluid communication with the first syringe port via a first pump tubing, wherein the first pump unit comprises:
a rotary pump comprising a pump cavity in fluid communication with the first syringe port; and
a motor coupled to the pump, wherein the motor is configured to rotate a portion of the rotary pump; and
a second pump unit in fluid communication with the second syringe port via a second pump tubing, wherein in a priming configuration the first syringe cavity and the second syringe cavity are in fluid communication and the first pump unit is configured to draw fluid flow from the first syringe cavity toward a catheter and the second pump unit is configured to pump fluid flow from the first syringe cavity toward the second syringe cavity, and
a valve, wherein a first portion of the valve is directly coupled to a terminal end of a delivery flow path from the first syringe cavity and a terminal end of a return flow path to the second syringe cavity, and a second portion of the valve is directly coupled to a terminal end of the catheter, wherein the valve is configured to prevent fluid flow from the first syringe cavity from entering the catheter and to direct fluid flow from the first syringe cavity through the valve and toward the second syringe cavity in the priming configuration.