System and method for detecting fluid type in tubing for fluid injector apparatus

Patent metadata

Field	Value
Publication number	US-2024207509-A1
Application number	US-202218560984-A
Country	US
Kind code	A1
Filing date	Feb 25, 2022
Priority date	Jun 17, 2021
Publication date	Jun 27, 2024
Grant date	—

Abstract

A fluid injector system includes at least one injector for pressurizing and delivering at least one fluid from at least one fluid reservoir, at least one fluid path section providing fluid communication between a bulk fluid reservoir and a syringe connected to the at least one injector, and at least one sensor arranged along the at least one fluid path section. The at least one sensor includes an emitter configured to emit light through the at least one fluid path section, and a detector configured to receive the light emitted through the at least one fluid path section and generate an electrical signal based on at least one property of the received light. The fluid injector system may further include at least one processor programmed or configured to determine, based on the electrical signal generated by the detector, at least one of an identity of the at least one fluid present in the fluid path section, a concentration of the at least one fluid in the fluid path section, and at least one property of the fluid path section.

First claim

1 . A fluid injector system, comprising:
at least one injector for pressurizing and delivering at least one fluid from at least one fluid reservoir; at least one fluid path section providing fluid communication between a bulk fluid reservoir and a syringe connected to the at least one injector; at least one sensor arranged along the at least one fluid path section, the at least one sensor comprising:
an emitter configured to emit light through the at least one fluid path section; and
a detector configured to receive the light emitted through the at least one fluid path section and generate an electrical signal based on at least one property of the received light; and
at least one processor programmed or configured to determine, based on the electrical signal generated by the detector, at least one of:
an identity of the at least one fluid present in the fluid path section;
a concentration of the at least one fluid in the fluid path section; and
at least one property of the fluid path section.

2 . The fluid injector system of claim 1 , wherein the emitter is arranged on a first side of the fluid path section,
wherein the detector is arranged on a second side of the fluid path section, and wherein the second side of the fluid path section is approximately 180° opposite the first side of the fluid path section.

3 . The fluid injector system of claim 1 , further comprising:
a first fluid reservoir and a second fluid reservoir for delivering a first fluid and a second fluid, respectively; a first fluid path section in fluid communication with the first fluid reservoir; a second fluid path section in fluid communication with the second fluid reservoir; and a first sensor and a second sensor, wherein the first fluid path section is associated with the first sensor and the second fluid path section is associated with the second sensor.

4 . The fluid injector system of claim 3 , further comprising:
a first bulk fluid container in fluid communication with the first fluid reservoir; and a second bulk fluid container in fluid communication with the second fluid reservoir, wherein the first sensor is arranged to detect fluid entering the first fluid reservoir from the first bulk fluid container during a filling operation of the first fluid reservoir, and wherein the second sensor is arranged to detect fluid entering the second fluid reservoir from the second bulk fluid container during a filling operation of the second fluid reservoir, and wherein the at least one processor is programmed or configured to determine, based on the electrical signals generated by the first and second sensors, that the fluid filling the first fluid reservoir was originally intended to fill the second fluid reservoir; and the fluid filling the second fluid reservoir was originally intended to fill the first fluid reservoir.

5 . (canceled)

6 . The fluid injector system of claim 4 , wherein the at least one processor is programmed or configured to perform an operation selected from: halting the filling operation in response to determining that the fluid filling the first fluid reservoir was originally intended to fill the second fluid reservoir; and adjusting an injection protocol to ensure that injection parameters are updated to switch the identity of the first fluid reservoir and the second fluid reservoir so that first fluid is associated with the first fluid reservoir and the second fluid is associated with the second fluid reservoir.

7 . The fluid injector system of claim 4 , wherein the at least one processor is programmed or configured to alter the injection protocol by configuring the first fluid reservoir to inject the fluid originally intended to be injected by the second fluid reservoir and configuring the second fluid reservoir to inject the fluid originally intended to be injected by the first fluid reservoir.

8 . The fluid injector system of claim 7 , wherein the at least one processor is programmed or configured to adjust a display of a graphical user interface or to illuminate a light source associated with the fluid reservoirs to indicate that the first fluid reservoir contains the fluid originally intended to be injected by the second fluid reservoir, and that the second fluid reservoir contains the fluid originally intended to be injected by the first fluid reservoir.

9 . (canceled)

10 . The fluid injector system of claim 1 , wherein the least one processor is programmed or configured to determine, based on at least one of identity of the fluid and concentration of the fluid in the at least one fluid path section, an optimal fill rate of the at least one fluid reservoir.

11 . (canceled)

12 . The fluid injector system of claim 1 , wherein the detector is configured to output a first voltage signal when the at least one fluid path section contains contrast media,
wherein the detector is configured to output a second voltage signal when the fluid path section contains saline, and wherein the at least one processor is programmed or configured to determine the identity of the injection fluid in the at least one fluid path section based on a difference between the first voltage signal and the second voltage signal.

13 . The fluid injector system of claim 12 , wherein the detector is configured to output a third voltage signal when the at least one fluid path section contains air, and
wherein the at least one processor is programmed or configured to determine that air is in the at least one fluid path section based on a difference between the third voltage signal, the first voltage signal, and the second voltage signal.

14 . The fluid injector system of claim 13 , wherein when the detector determines that the fluid path section contains air, the detector is configured to provide an alert to a user that the bulk fluid reservoir is empty.

15 . The fluid injector system of claim 1 , wherein the at least one processor is programmed or configured to:
determine a concentration of a contrast media in the at least one fluid path section based on the electrical signal generated by the at least one sensor, and either increase a ratio of saline injected during an injection procedure to dilute the concentration of the contrast media delivered to the patient or reduce an injection rate of saline during an injection procedure to increase the concentration of the contrast media delivered to the patient.

16 . (canceled)

17 . (canceled)

18 . The fluid injector system of claim 1 , wherein the at least one processor is programmed or configured to determine, based on the electrical signal, that the at least one fluid path section is present between the emitter and the detector.

19 . The fluid injector system of claim 1 , wherein the emitter is configured to emit light on at least one of the ultraviolet spectrum, the infrared spectrum, and the visible spectrum.

20 - 26 . (canceled)

27 . A method for determining one or more fluid properties of a fluid flowing in at least one fluid path section of a fluid injector system, the method comprising:
emitting light from an emitter of at least one sensor through the at least one fluid path section; detecting with a detector of the first proximal sensor the light that has passed through the at least one fluid path section; and determining, based on an electrical signal generated by the detector, at least one of:
an identity of an injection fluid present in the fluid path set;
a concentration of the injection fluid in the fluid path set; and

Assignees

• Bayer Healthcare Llc

Inventors

• Morton Richard
• Scutt Christopher
• Spohn Michael
• Lee Randy
• Ferchaw Mikayla
• Cowan Kevin
• Campbell Patrick
• Naples Andrew
• Barone William
• Capone Christopher
• Pastor Curtis
• Lang Charles
• Swantner Michael

Classifications

• A61M2205/3306

  Optical measuring means · CPC title

• A61M5/365

  Air detectors (A61M5/1684 takes precedence; in extracorporeal blood circuits A61M1/3626) · CPC title

• A61M5/16827

  controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths (infusion of multiple fluids without using a controller A61M5/1407) · CPC title

• A61M2205/587

  Lighting arrangements · CPC title

• A61M2205/584

  having a color code · CPC title