US 12,491,319 B2
Universal dosage verification system and method for medical syringe
Thomas J. Shaw, Frisco, TX (US); Kathryn Duesman, Pilot Point, TX (US); Mark Small, Heavener, OK (US); and Ni Zhu, McKinney, TX (US)
Assigned to Retractable Technologies, Inc., Little Elm, TX (US)
Filed by Retractable Technologies, Inc., Little Elm, TX (US); and Thomas J. Shaw, Frisco, TX (US)
Filed on Jan. 30, 2024, as Appl. No. 18/427,210.
Application 18/427,210 is a continuation in part of application No. 17/929,169, filed on Sep. 1, 2022.
Claims priority of provisional application 63/482,692, filed on Feb. 1, 2023.
Prior Publication US 2024/0165337 A1, May 23, 2024
Int. Cl. A61M 5/315 (2006.01); A61M 5/31 (2006.01)
CPC A61M 5/315 (2013.01) [A61M 5/3129 (2013.01); A61M 5/31533 (2013.01); A61M 2005/3126 (2013.01); A61M 2205/3379 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A syringe for verification of a volume of a medicinal fluid in the syringe, the syringe comprising:
a barrel comprising a fluid chamber configured to hold the volume of the medicinal fluid in the syringe; and
a plunger slidably engaging the fluid chamber;
wherein the syringe comprises a first component that is a first color, and wherein the first component is the plunger;
wherein the syringe comprises a second component that is a second color different from the first color, and wherein the second component comprises a needle safety device;
wherein the first component is movable with respect to the second component, the barrel, or both; and
wherein the first component and the second component are distinguishable by a processor in a digital image comprising at least a portion of the first component and at least a portion of the second component to determine a position of the first component relative to the second component that indicates the volume of the medicinal fluid in the syringe.