Flow set and a method for identifying the flow set for use with a pump
First Claim
Patent Images
1. A disposable flow set comprising:
- a first administration tube;
at least one tube-segment having a first end and a second end, the first end connected to said first administration tube;
a second administration tube connected to the second end of the at least one tube-segment; and
at least one identifying key member connected to the at least one tube-segment.
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Abstract
A disposable flow set for use with a pump includes a first administration tube, at least one tube-segment having a first end and a second end, the first end connected to the first administration tube, a second administration tube connected to the second end of the at least one tube-segment; and an identifying key member connected to the at least one tube-segment. The identifying key member includes a number of teeth that define a unique code, including a combination of location and width. The teeth fit into compatible niches located in the pump.
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Citations
21 Claims
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1. A disposable flow set comprising:
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a first administration tube;
at least one tube-segment having a first end and a second end, the first end connected to said first administration tube;
a second administration tube connected to the second end of the at least one tube-segment; and
at least one identifying key member connected to the at least one tube-segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19)
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16. A method of identifying a flow set for use with a pump, the flow set comprising one or more administration tubes and an anti-free-flow valve, and having a predetermined interior volume, the method comprising:
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measuring the quantity of liquid flowing into the flow set;
measuring the pressure of liquid in the one or more administration tubes of the flow set;
comparing the volume of liquid used to fill the flow set with the interior volume of the flow set; and
if the volume of liquid used to fill the flow set is different than the interior volume of the flow set, stopping the operation of the pump or activating an alarm, or both.
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20. A method of priming a flow set for use with a pump, the flow set comprising one or more administration tubes and an anti-free-flow valve, and having a predetermined interior volume, the method comprising:
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pumping liquid into the flow set;
measuring the quantity of liquid flowing into the flow set;
measuring the pressure of liquid in the one or more administration tubes of the flow set;
recognizing the first arrival of liquid to the anti-free-flow valve, by sensing a rise of pressure in the one or more administration tubes;
obtaining the volume of liquid used to fill the flow set, from the measurement of liquid flow quantity until a pressure rise reaches a predetermined high;
comparing the volume of liquid used to fill the flow set with the interior volume of the flow set; and
if the volume of liquid used to fill the flow set is different than the interior volume of the flow set, stopping the operation of the pump or activating an alarm, or both.
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21. A method for identifying a flow set for use with a pump, the flow set comprising a drip chamber, the method comprising:
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pre-counting the number of drops, per a volume unit of liquid, which enters the drip chamber of the flow set;
when operating the pump, counting the drop number per supplied liquid unit; and
if the drop number per volume unit of supplied liquid is different than the pre-counted number of drops, stopping the operation of the pump or activating an alarm, or both.
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Specification