Method for using a pump set having secure loading features
First Claim
1. A method of using a feeding set on an enteral feeding pump, said feeding set having an interlock device adapted to be inserted into a recess of the enteral feeding pump, said method comprising:
- inserting the interlock device into the recess of the enteral feeding pump;
intermittently emitting infrared radiation in a direction for striking the inserted interlock device;
transmitting and internally reflecting the infrared radiation within the interlock device to redirect the infrared radiation toward a first detector when the interlock device is properly inserted in the pump recess;
detecting with the first detector the infrared radiation redirected within the interlock device;
intermittently energizing a visible light emitter only after infrared radiation has been detected by the first detector;
filtering visible light with the interlock device to prevent transmission through the interlock device;
reading a second detector to verify that visible light emitted by the visible light emitter has been blocked; and
enabling operation of the enteral feeding pump to pump nutrient liquid in the feeding set in response to detection of infrared radiation by the first detector and the verification that no visible light is detected by the second detector.
5 Assignments
0 Petitions
Accused Products
Abstract
A method of using a pump set on a pump to deliver a supply of liquid to a patient. The pumping apparatus has a control system for controlling operation of the pump. An electromagnetic radiation source is controlled by the control system to emit an electromagnetic radiation signal in a direction for striking a safety interlock device associated with the pump set. The safety interlock device affects the direction of the electromagnetic radiation. An electromagnetic radiation detector is operatively connected to the control system for receiving the electromagnetic radiation signal when the direction is affected by the safety interlock device, and provides an indication to the control system that the pump set conduit is properly positioned in the pump. The pump is controlled to pump liquid in the pump set only when electromagnetic radiation emitted from the first source is detected by the first detector.
183 Citations
22 Claims
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1. A method of using a feeding set on an enteral feeding pump, said feeding set having an interlock device adapted to be inserted into a recess of the enteral feeding pump, said method comprising:
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inserting the interlock device into the recess of the enteral feeding pump; intermittently emitting infrared radiation in a direction for striking the inserted interlock device; transmitting and internally reflecting the infrared radiation within the interlock device to redirect the infrared radiation toward a first detector when the interlock device is properly inserted in the pump recess; detecting with the first detector the infrared radiation redirected within the interlock device; intermittently energizing a visible light emitter only after infrared radiation has been detected by the first detector; filtering visible light with the interlock device to prevent transmission through the interlock device; reading a second detector to verify that visible light emitted by the visible light emitter has been blocked; and enabling operation of the enteral feeding pump to pump nutrient liquid in the feeding set in response to detection of infrared radiation by the first detector and the verification that no visible light is detected by the second detector. - View Dependent Claims (2, 3, 4)
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5. A method of using a feeding set on an enteral feeding pump, said feeding set having an interlock device adapted to be inserted into a recess of the enteral feeding pump, said method comprising:
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inserting the interlock device into the recess of the enteral feeding pump; emitting electromagnetic radiation in a direction for striking the inserted interlock device; detecting at least a portion of the electromagnetic radiation striking the interlock device when the interlock device is properly inserted in the pump recess; and enabling operation of the enteral feeding pump to pump nutrient liquid in the feeding set in response to the detected electromagnetic radiation. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for controlling a pumping apparatus capable of mounting a pump set having a safety interlock device thereon, the method comprising:
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emitting electromagnetic radiation from a first source of electromagnetic radiation in a direction for striking said safety interlock device of the pump set; activating a first electromagnetic radiation detector to detect electromagnetic radiation striking the first detector; emitting electromagnetic radiation from a second source of electromagnetic radiation in a direction for striking said safety interlock device of the pump set; activating a second electromagnetic radiation detector to detect electromagnetic radiation striking the second detector; and controlling 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 second detector does not detect electromagnetic radiation. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification