IP Library › Granted Patent US 12,491,319
Granted Patent B2
US 12,491,319 · App. 18/427,210 · Granted Dec 9, 2025

Universal dosage verification system and method for medical syringe

Inventors: Thomas J. Shaw (Frisco, TX); Kathryn Duesman (Pilot Point, TX); Mark Small (Heavener, OK); Ni Zhu (McKinney, TX)
Assignee: Retractable Technologies, Inc.
A61M5/315A61M5/3129A61M5/31533A61M2005/3126A61M2205/3379
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Quick Facts
Patent No.
US 12,491,319
App. No.
18/427,210
Granted
Dec 9, 2025
Kind
B2
Abstract

Systems and methods of a dosage verification system are disclosed that can be used by a healthcare worker or an individual self-administering an injection to create a digital record verifying the dosage of a medicinal fluid drawn into a syringe prior to an injection. The dosage verification system includes a medical syringe and an imaging device configured to view and selectively capture, process, store, and transmit a digital image of the syringe from which the volumetric dose of medicinal fluid drawn into the fluid chamber of the barrel can be determined and/or verified prior to an injection.

Claims (17)

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.

2 . The syringe of claim 1 , wherein there are no volumetric markings on the barrel, the plunger, or a combination thereof.

3 . The syringe of claim 1 , wherein an entirety of the first component is the first color, and wherein an entirety of the second component is the second color.

4 . The syringe of claim 3 , wherein the first color and the second color are contrasting.

5 . The syringe of claim 4 , wherein the first color and the second color are contrasting from other portions of the syringe.

6 . The syringe of claim 1 , wherein the first color and the second color are contrasting.

7 . The syringe of claim 6 , wherein the first color and the second color are contrasting from other portions of the syringe.

8 . The syringe of claim 1 , wherein one of the first color and the second color is orange.

9 . The syringe of claim 8 , wherein the other of the first color or the second color is blue.

10 . The syringe of claim 1 , wherein the barrel is transparent.

11 . The syringe of claim 10 , wherein the first component is disposed at least partially within the fluid chamber, and wherein the second component is disposed at a forward end of, a rearward end of, or longitudinally along an outside of the barrel.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2024
From: DUESMAN, KATHRYN; SMALL, MARK; ZHU, NI
To: RETRACTABLE TECHNOLOGIES, INC.
Reel/Frame 067006/0227 →
Continuity (3)
Continuation In Part 17929169 · Sep 1, 2022
Provisional Application 63482692 · Feb 1, 2023
Related Publication 20240165337A1 · May 23, 2024
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