FLUID MIXING CONTROL DEVICE FOR A MULTI-FLUID DELIVERY SYSTEM

• US 20100114040A1
• Filed: 11/05/2008
• Published: 05/06/2010
• Est. Priority Date: 11/05/2008
• Status: Active Grant

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Riley, Micheal, Schriver, Ralph H., Barlow, William D., Joyce, Thomas P.
• Granted Patent: US 9,011,377 B2
• Time in Patent Office: Days
• US Class Current: 604/246
• CPC Class Codes: A61B 6/481 involving the use of contrast agents
• CPC Class Codes: A61M 2005/1787 Syringes for sequential delivery of fluids, e.g. first medicament and then flushing liquid
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1407 Infusion of two or more substances
• CPC Class Codes: A61M 5/16827 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 Class Codes: A61M 5/16877 Adjusting flow; Devices for setting a flow rate
• CPC Class Codes: A61M 5/31546 Electrically operated dose setting, e.g. input via touch screen or plus/minus buttons
• CPC Class Codes: A61M 5/31548 Mechanically operated dose setting member
• CPC Class Codes: G05D 11/003 using interconnected flow control elements
• CPC Class Codes: G05D 11/005 using synchronised pumps
• CPC Class Codes: G05D 11/02 Controlling ratio of two or more flows of fluid or fluent material
• CPC Class Codes: G05D 7/0676 by action on flow sources G05D7/0688, G05D7/0694 take precedence

Abstract

The control device is used to control delivery of fluids from a multi-fluid delivery system during a medical injection procedure. The fluid delivery system includes an injector used to deliver injection fluids to a patient. The control device is operatively associated with the injector for controlling discrete flow rates of injection fluids delivered to the patient. The control device includes a housing, first and second actuators associated with the housing, and an electronic substrate disposed within the housing and having a conductive pattern. The first actuator is operatively associated with the conductive pattern. The conductive pattern includes a plurality of predetermined digital values corresponding to discrete flow rates of injection fluids to be delivered by the injector. The second actuator is operatively associated with the electronic substrate and initiates output signals to the injector corresponding to desired mixture ratios of the injection fluids to be delivered by the injector.

Claims

1. A fluid delivery system for use in medical procedures, comprising:

an injector for delivering multiple injection fluids to a patient; and

a control device operatively associated with the injector, comprising;

a housing;

a first actuator associated with the housing;

an electronic substrate disposed within the housing and comprising a conductive pattern, the first actuator adapted to operatively associate with the conductive pattern when actuated by a user; and

a second actuator associated with the housing and operatively associated with the electronic substrate;

wherein the conductive pattern comprises a plurality of predetermined digital values corresponding to discrete flow rates of the injection fluids to be delivered by the injector such that when the first actuator is actuated, the first actuator operatively associates with the conductive pattern and transmits the digital values to the injector; and

wherein actuation of the second actuator initiates output signals to the injector corresponding to desired mixture ratios of the injection fluids to be delivered by the injector.

2. The fluid delivery system of claim 1, wherein the first actuator is movably associated with the housing and the digital values are arranged such that the discrete flow rates are linearly proportional to distance of movement of the first actuator.

3. The fluid delivery system of claim 1, wherein the first actuator is movably associated with the housing and the digital values are arranged such that the discrete flow rates incrementally increase with distance of movement of the first actuator.

4. The fluid delivery system of claim 3, wherein the digital values comprise at least to a first digital value corresponding to no movement of the first actuator and a 0% of discrete flow rate from the injector, and a last digital value corresponding to a maximum movement of the first actuator and a 100% discrete flow rate from the injector.

5. The fluid delivery system of claim 1, wherein the first actuator is movably associated with the housing and comprises an actuating member and a contact roller adapted to operatively associate with the conductive pattern.

6. The fluid delivery system of claim 1, wherein the second actuator comprises a potentiometer.

8. The fluid delivery system of claim 1, wherein the second actuator comprises at least one push button.

9. The fluid delivery system of claim 1, further comprising a second electronic substrate disposed within the housing and comprising a conductive pattern, the second actuator adapted to operatively associate with the conductive pattern on the second electronic substrate when actuated by the user.

10. The fluid delivery system of claim 9, wherein the second actuator is movably associated with the housing and comprises an actuating member and a contact roller adapted to operatively associate with the conductive pattern on the second electronic substrate.

7. The fluid delivery system of claim 7, wherein the potentiometer is one of a linear potentiometer and a rotational potentiometer.

11. A control device for controlling a multi-fluid delivery system, comprising:

a housing;

a first actuator associated with the housing;

an electronic substrate disposed within the housing and comprising a conductive pattern, the first actuator adapted for operative association with the conductive pattern when actuated by a user, and wherein the conductive pattern comprises a plurality of predetermined digital values corresponding to discrete flow rates of injection fluids to be delivered by the multi-fluid delivery system such that when the first actuator is actuated, the first actuator operatively associates with the conductive pattern and transmits the digital values to the multi-fluid delivery system; and

a second actuator associated with the housing and operatively associated with the electronic substrate, such that actuation of the second actuator initiates output signals to the multi-fluid delivery system corresponding to desired mixture ratios of the injection fluids to be delivered by the multi-fluid delivery system.

12. The control device of claim 11, wherein the first actuator is movably associated with the housing and the digital values are arranged such that the discrete flow rates are linearly proportional to distance of movement of the first actuator.

13. The control device of claim 11, wherein the first actuator is movably associated with the housing and the digital values are arranged such that the discrete flow rates incrementally increase with distance of movement of the first actuator.

14. The control device of claim 13, wherein the digital values comprise at least a first digital value corresponding to no movement of the first actuator and a 0% discrete flow rate from the fluid delivery, and a last digital value corresponding to a maximum movement of the first actuator and a 100% discrete flow rate from the multi-fluid delivery system.

15. The control device of claim 11, wherein the first actuator is movably associated with the housing and comprises an actuating member and a contact roller adapted to operatively associate with the conductive pattern.

16. The control device of claim 11, wherein the second actuator comprises a potentiometer.

17. The control device of claim 16, wherein the potentiometer is one of a linear potentiometer and a rotational potentiometer.

18. The control device of claim 11, wherein the second actuator comprises at least one push button.

19. The control device of claim 11, further comprising a second electronic substrate disposed within the housing and comprising a conductive pattern, the second actuator adapted to operatively associate with the conductive pattern on the second electronic substrate when actuated by a user.

20. The control device of claim 19, wherein the second actuator is movably associated with the housing and comprises an actuating member and a contact roller adapted to operatively associate with the conductive pattern on the second electronic substrate.