INFUSION APPARATUS
4 Assignments
0 Petitions
Accused Products
Abstract
In an infusion apparatus, an infusion line (4) connects a container (2) of an infusion fluid to an extracorporeal blood circuit (23). A first valve (6) closes the infusion line downstream of an infusion pump (5). An expansion chamber (9), provided with a pressure sensor (10), is arranged between the infusion pump and the first valve. A second valve (8) closes a vent line (7) of the expansion chamber. The processor closes the first valve when the container is emptied. After replacement with a new and full container, the processor restarts the pump and selectively opens the first valve or the second valve according to the increase in pressure measured in the expansion chamber.
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Citations
76 Claims
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1-38. -38. (canceled)
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39. An infusion apparatus comprising:
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at least a batch container containing an infusion fluid; an infusion line having a first end which is connected to the batch container and a second end which supplies the infusion fluid; an infusion pump operating on the infusion line for circulation of the infusion fluid from the first end to the second end; a first valve designed to close the infusion line between the pump and the second end; a vent line having a first end which is connected to an intermediate tract of the infusion line and a second discharge end, the intermediate tract being arranged between the infusion pump and the first valve; a second valve designed to close the vent line. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
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72. A method for controlling an infusion apparatus comprising stages of:
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providing an infusion line having a first end for receiving an infusion fluid and a second end for supplying the infusion fluid; connecting the infusion line to a pump for circulation of infusion fluid from the first end to the second end; connecting a first valve to the infusion line between the pump and the second end for closing the line; connecting a first end of a vent line to an intermediate tract of the infusion line arranged between the pump and the first valve, the vent line having a second discharge end; connecting a second valve to the vent line for closing the vent line; providing a first sensor for emitting a first signal of at least a first parameter indicating a liquid level in the intermediate tract; closing the first valve and/or the second valve; connecting at least a batch container containing an infusion fluid to the first end of the infusion line; activating the pump with the first valve closed and/or the second valve closed; acquiring at least a value of the first parameter in the intermediate tract following the activation of the pump; comparing the value of the first parameter with a reference value; and opening the first valve or the second valve according to a result of the comparison. - View Dependent Claims (73, 74, 75, 76)
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Specification