System and method for verifying alignment of drug pump and fluid supply

Patent metadata

Field	Value
Publication number	US-9415175-B2
Application number	US-201313842146-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Mar 15, 2013
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

A patient care system is configured for infusing fluid to a patient. The system includes a plurality of fluid infusion pumps, each of which is connected to a respective fluid supply for pumping the contents of a fluid supply to a patient via fluid supply lines. The system includes a pressure sensor downstream of the fluid infusion pumps for determining if a particular fluid is connected to a designated infusion pump.

First claim

The invention claimed is:

1. A method for verifying that a particular fluid supply is connected to a pump mechanism wherein the pump mechanism acts on a fluid line coupled to the fluid supply to control movement of fluid from the fluid supply through the fluid line, the method comprising:
causing an operator-induced pressure change in the fluid line at a downstream portion of the fluid line located between the pump mechanism and a patient, wherein a collapsible reservoir is positioned entirely external of the pump mechanism and located in the downstream portion of the fluid line entirely downstream of the pump mechanism, and wherein causing the operator-induced pressure change comprises squeezing the reservoir, wherein the reservoir includes a one-way valve that inhibits fluid flow toward the patient when a pressure change occurs in the reservoir;
sensing pressure in the downstream portion of the fluid line;
detecting the operator-induced pressure change in the downstream portion of the fluid line and
indicating a connection verification that the fluid supply is connected to the pump mechanism upon detection of the operator-induced pressure change.

2. The method of claim 1 , wherein causing the operator-induced pressure change comprises kinking the downstream portion of the fluid line.

3. The method of claim 1 , further comprising generating a pressure signal representative of the pressure in the downstream portion of the fluid line.

4. The method of claim 1 , further comprising delaying the pump mechanism from moving fluid through the fluid line until the pressure change in the fluid line is detected.

5. The method of claim 1 , further comprising detecting the operator-induced pressure change at a second pump mechanism; and indicating an identity of the second pump mechanism.

6. The method of claim 1 , further comprising prompting an operator to confirm that a pressure change has been induced if the induced pressure change is not detected within a predetermined time period.

7. The method of claim 1 , further comprising prompting an operator to squeeze the downstream portion of the fluid line.

8. The method of claim 1 , further comprising prompting an operator to squeeze the collapsible reservoir.

9. A patient care system for infusing multiple medical fluids, the patient care system comprising:
a plurality of fluid containers each adapted to hold a separate medical fluid;
a plurality of fluid lines each in fluid communication with a separate fluid container from among the plurality of fluid containers;
a plurality of pump channels each adapted to receive and connect to a separate fluid line from among the plurality of fluid lines and to operate on a received fluid line to pump a fluid from the fluid container connected to the received fluid line;
a plurality of pressure sensors each associated with a pump channel, each coupled to a separate fluid line from among the plurality of fluid lines, and each located downstream of the associated pump channel providing sensor signals representative of pressure in the fluid line with which the pressure sensor is coupled;
a plurality of collapsible reservoirs, each entirely external to a pump mechanism and coupled to a downstream portion of a corresponding fluid line entirely downstream of a pump mechanism, each collapsible reservoir including a one-way valve that regulates fluid flow toward a patient; and
a processor connected to the plurality of pressure sensors and to the plurality of pump channels, the processor configured to verify that a particular fluid container from among the plurality of fluid containers is connected to a particular pump channel from among the plurality of pump channels, wherein the processor has a connection verification mode in which the processor is configured to monitor the pressure signals for a predetermined time period to detect an operator-induced pressure change and to provide a verification indication when the processor receives the pressure signals indicative of the operator-induced pressure change in a particular fluid line to thereby verify that the particular fluid container is connected to the particular pump channel through the particular fluid line.

10. The patient care system of claim 9 , wherein the processor is further configured to delay a pump channel from moving fluid through the respective fluid line until the processor receives the pressure signals indicative of the operator-induced pressure change in the respective fluid line.

11. The patient care system of claim 9 , wherein the processor in the connection verification mode is configured to detect that the operator-induced pressure change is at any of the pump channels with which the processor is connected and indicate an identity to an operator of the pump channel at which the operator-induced pressure change was actually detected.

12. The patient care system of claim 9 , wherein the processor in the connection verification mode is further configured to prompt an operator to induce a pressure change in the particular fluid line.

13. The patient care system of claim 9 , wherein the processor in the connection verification mode is further configured to: prompt an operator to confirm that a pressure change has been induced if the operator-induced pressure change is not detected within a predetermined time period.

14. The patient care system of claim 9 further comprising a drug library in which is stored a data base of drugs, wherein the drug data base also includes instructions linked to selected drugs to instruct the processor to run the connection verification mode; and an input device coupled to the processor by which a selection of a drug from the drug data base is made; wherein the processor receives the drug selection from an input device, accesses the drug library, and is configured in the connection verification mode in event that such an instruction is linked to the selected drug.

Assignees

• Carefusion 303 Inc

Inventors

• Vanderveen Timothy
• Bollish Stephen

Classifications

• A61M5/14228

  with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member · CPC title

• A61M5/5086 Primary

  for indicating if defective, used, tampered with or unsterile · CPC title

• A61M5/16854

  by monitoring line pressure · CPC title

• A61M5/16859

  Evaluation of pressure response, e.g. to an applied pulse · 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