Multiple solution IV system with setup error protection

• US 4,705,506 A
• Filed: 11/14/1985
• Issued: 11/10/1987
• Est. Priority Date: 11/29/1984
• Status: Expired due to Fees

• Current Assignee: Graseby Medical Limited (ICU Medical Incorporated)
• Original Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Inventors: Archibald, G. Kent
• Primary Examiner(s): Yasko, John D.
• Assistant Examiner(s): Costantino, Mario
• Application Number:
  US06/798,228
• Time in Patent Office: 726 Days
• Field of Search: 604/51-53, 604/65-67, 604/80, 604/81, 604/131, 604/151, 604/153, 604/245, 604/246, 604/248-250, 128/DIG. 12, 128/DIG. 13, 137/636.1, 137/595, 137/553, 251/4-10, 251/67, 251/68, 251/74, 222/130, 222/136, 222/137, 222/145, 222/144.5, 364/413, 364/415, 364/172, 364/173, 364/510
• US Class Current: 604/81
• 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: Y10S 128/13 Infusion monitoring

Abstract

A multiple solution IV administration system includes a plurality of IV fluid sources which are connected by flexible tubing to the inlet of an IV pump. A sequence valve suspended from the tubing selectively pinches off all but one tube so that one source at a time is connected to the inlet. The sequence valve is controlled as a function of the accumulated volume pumped by the pump for each fluid and a stored volume limit for that fluid. When the accumulated volume of one IV fluid reaches its volume limit, the sequence valve is changed to connect a different source to the inlet of the IV pump. The desired volume limits and rates are entered manually and are checked automatically to protect against setup errors.

Claims

1. An IV administration system comprising:

a first source of a primary IV fluid;

a second source of multiple doses of a secondary IV fluid;

an IV control device for delivering IV fluids at a rate determined by a rate control signal;

valve means for controlling fluid flow from the first and second sources to the IV control device as a function of a valve control signal;

means for connecting the IV control device to a patient;

control means for providing the rate control signal and the valve control signal to cause the IV control device to deliver the secondary IV fluid to the patient at a first rate until a first volume has been delivered and thereafter the primary IV fluid to the patient at a second rate until a second volume has been delivered;

means for providing input signals to the control means which select values for the first and second rates and the first and second volumes;

means for storing a mathematical relationship which interrelates the value of first volume with at least one other selected value; and

means responsive to the input signals for preventing operation of the IV control device unless the first volume and one of the other selected values satisfy the mathematical relationship.

2. An IV administration system comprising:

a first source of multiple doses of a first IV fluid;

a second source of a second IV fluid;

an IV control device for delivering IV fluids at a a rate determined by a rate control signal;

valve means for controlling fluid flow from the first and second sources to the IV control device as a function of a valve control signal;

means for connecting the IV control device to a patient;

control means for providing the rate control signal and the valve control signal to cause the IV control device to deliver the first IV fluid to the patient at a first rate until a first volume has been delivered and the second IV fluid to the patient at a second rate until a second volume has been delivered;

user-actuated means for entering numerical values representing first and second rates and first and second volumes to be used by the control means; and

means for storing a required mathematical relationship between at least two of the numerical values;

error check means responsive to the user-actuated means for providing an error signal if at least two of the numerical values fail to satisfy the required mathematical relationship.

3. The IV administration system of claim 2 wherein the mathematical relationship is that the numerical value representing the first volume is less than another one of the numerical values.

4. The IV administration system of claim 2 wherein the mathematical relationship is that the numerical value representing one of the rates must be greater than the numerical value representing the first volume.

5. The IV administration system of claim 2 wherein the mathematical relationship is that one of the numerical values must be an odd number and one must be an even number.

6. The IV administration system of claim 2 and further comprising:

annunciator means responsive to the error signal for providing an audible signal

7. An IV administration system for administering a plurality of IV fluids to a patient, the system comprising:

a plurality of sources of IV fluid, each source providing a different IV fluid, and at least one of the sources having a volume capable of containing multiple doses of an IV fluid medication;

an IV control device having an inlet and an outlet for delivering IV fluid;

a plurality of flexible tubes connecting the plurality of sources to the inlet;

valve means between a plurality of sources and the inlet of the IV control device for selectively constricting all but one of the plurality of tubes to allow one of the sources to be connected to the inlet of the IV control device as a function of a valve control signal;

means for connecting the outlet of the IV control device to a patient;

control means for providing a valve control signal to the valve means as a function of volume delivered by the IV control device to cause the IV control device sequentially to deliver selected volumes of each of the IV fluids;

means for providing input signals to the control means which select the volumes; and

means for storing a mathematical criterion which interrelates values of the input signals including an input signal related to the selected volume of the IV fluid medication;

error check means responsive to the input signals for comparing the input signals to the stored mathematical criterion and providing an error signal if the input signals fail to meet the mathematical criterion.

8. The IV administration system of claim 7 wherein the input signals represent numerical values.

9. The IV administration system of claim 8 wherein the mathematical criterion is that an input signal representing a volume limit for the IV fluid medication is less than an input signal representing another operating parameter of the IV control device.

10. The IV administration system of claim 9 wherein the input signal representing another operating parameter represents a rate of flow produced by the IV control device.

11. An IV administration system comprising:

a first source of a primary IV fluid;

a second source of a secondary IV fluid, the second source having a volume sufficient to contain multiple doses of the secondary IV fluid;

means for sequentially delivering the secondary and primary IV fluids;

means for selecting parameters including a rate of delivery and volume limit for one dose of the secondary IV fluid to be delivered by the means for sequentially delivering;

means for storing mathematical relationship which the volume limit selected for one dose of the secondary IV fluid must have to another selected parameter if the volume limit has been properly selected; and

means for providing an error signal based upon the volume limit selected and the stored mathematical relationship if the volume limit selected for one dose of the secondary IV fluid does not satisfy the stored mathematical relationship.

12. The IV administration system of claim 11 wherein the selected parameter to which the volume limit selected for the secondary IV fluid must have the mathematical relationship is the rate of delivery.

13. The IV administration system of claim 12 wherein the stored mathematical relationship is that the volume limit for the secondary IV fluid is less than the rate of delivery.

14. The IV administration system of claim 12 wherein the stored mathematical relationship is that one of the rate of delivery and the volume limit is an even number and the other is an odd number.

15. The IV administration system of claim 11 wherein the means for sequentially delivering the secondary and primary IV fluids comprises:

an IV control device for delivering IV fluids; and

valve means for sequentially connecting the second source and the first source to the IV control device.

16. The IV administration system of claim 15 wherein the means for sequentially delivering further comprises:

control means for controlling operation of the IV control device and the valve means as a function of the parameters selected.

17. The IV administration system of claim 11 wherein the selected parameter to which the volume limit selected for the secondary IV fluid must have the mathematical relationship is a volume limit for the primary IV fluid.