METHOD FOR USING A PUMP SET HAVING SECURE LOADING FEATURES

• US 20100198144A1
• Filed: 04/09/2010
• Published: 08/05/2010
• Est. Priority Date: 03/02/2006
• Status: Active Grant

• Current Assignee: Cardinal Health Ireland Unlimited Company (Cardinal Health, Inc.)
• Original Assignee: Covidien AG (Medtronic Plc)
• Inventors: Hanlon, James G., Sisk, Ricky A., Gaines, Robert B., Meier, Kevin C., Knauper, Christopher A., Harr, James M., Hudson, Joseph A., Wiesner, Joel D., Fournie, Glenn G.
• Granted Patent: US 8,142,404 B2
• Time in Patent Office: Days
• US Class Current: 604/67
• CPC Class Codes: A61J 15/0026 Parts, details or accessories for feeding-tubes external tubes from medical containers to a connector outside of the body A61M39/08
• CPC Class Codes: A61M 2205/14 Detection of the presence or absence of a tube, a connector or a container in an apparatus
• CPC Class Codes: A61M 2205/3313 used specific wavelengths
• CPC Class Codes: A61M 5/14212 Pumping with an aspiration and an expulsion action
• CPC Class Codes: A61M 5/14232 Roller pumps
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066

Abstract

A controller for operating a pumping apparatus to supply fluid to a patient through a pump set includes a processor programmed to instruct a first source of electromagnetic radiation to emit electromagnetic radiation in a direction for striking a safety interlock of the pump set. The processor activates a first electromagnetic radiation detector to detect the electromagnetic radiation emitted from the first source. The processor instructs a second source of electromagnetic radiation to emit electromagnetic radiation in a direction for striking the safety interlock. The processor activates a second electromagnetic radiation detector to detect the electromagnetic radiation emitted from the second source. The processor controls the pumping apparatus to operate for pumping fluid in the pump set only when electromagnetic radiation emitted from the first source is detected by the first detector and when the electromagnetic radiation emitted from the second source is not detect by the second detector.

Claims

1. A controller for operating a pumping apparatus to supply fluid to a patient through a pump set having a safety interlock loaded in the pumping apparatus, the controller comprising a first source of electromagnetic radiation operatively connected to the pumping apparatus for emitting electromagnetic radiation, a first electromagnetic radiation detector operatively connected to the pumping apparatus, a second source of electromagnetic radiation operatively connected to the pumping apparatus for emitting electromagnetic radiation, a second electromagnetic radiation detector operatively connected to the pumping apparatus, and a processor programmed to:

instruct the first source of electromagnetic radiation to emit electromagnetic radiation in a direction for striking the safety interlock of the pump set;

activate the first electromagnetic radiation detector to detect the electromagnetic radiation emitted from the first source of electromagnetic radiation;

instruct the second source of electromagnetic radiation to emit electromagnetic radiation in a direction for striking the safety interlock of the pump set;

activate the second electromagnetic radiation detector to detect the electromagnetic radiation emitted from the second source of electromagnetic radiation; and

control the pumping apparatus to operate for pumping fluid in the pump set only when electromagnetic radiation emitted from the first source is detected by the first detector and when the electromagnetic radiation emitted from the second source is not detect by the second detector.

2. The controller of claim 1 wherein the processor is configured to execute software instructions to intermittently operate the first source of electromagnetic radiation to generate a pattern of emitter activations and deactivations to emit electromagnetic radiation from the first source.

3. The controller of claim 2 wherein the processor is configured to execute software instructions to intermittently operate the first detector in a series of detector activations to detect the presence of electromagnetic radiation from the first source.

4. The controller of claim 3 wherein the processor is configured to indicate that the safety interlock is improperly loaded in the pumping apparatus and disables operation of the pumping apparatus if electromagnetic radiation is detected during at least one of the emitter deactivations.

5. The controller of claim 3 wherein the number of activations of the radiation detector is greater than the number that the number of activations of the radiation emitter.

6. The controller of claim 5 wherein said detector activations and said emitter activations have a ratio of about 2:

1.

7. The controller of claim 1 wherein the processor instructs the second source of electromagnetic radiation to emit electromagnetic radiation only after the first detector detects electromagnetic radiation from the first source.

8. The controller of claim 1 wherein the first source of electromagnetic radiation is adapted to emit infrared radiation and the second source of electromagnetic radiation is adapted to emit visible light.