DIALYSIS SYSTEM HAVING DISPOSABLE CASSETTE
First Claim
Patent Images
1. A dialysis system comprising:
- a dialysis instrument;
a disposable cassette, the cassette including a rigid portion defining at least one pumping chamber, a pouch fitted over the rigid portion, the pouch including at least one flexible sheet sealed so as to provide a sealed environment inside the pouch; and
wherein the instrument is configured to press the at least one flexible sheet against the pumping chamber to seal the pumping chamber for operation.
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Abstract
A dialysis system includes a dialysis instrument; a disposable cassette, the cassette including a rigid portion defining at least one pumping chamber, a pouch fitted over the rigid portion, the pouch including at least one flexible sheet sealed so as to provide a sealed environment inside the pouch; and wherein the instrument is configured to press the at least one flexible sheet against the pumping chamber to seal the pumping chamber for operation.
224 Citations
23 Claims
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1. A dialysis system comprising:
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a dialysis instrument; a disposable cassette, the cassette including a rigid portion defining at least one pumping chamber, a pouch fitted over the rigid portion, the pouch including at least one flexible sheet sealed so as to provide a sealed environment inside the pouch; and wherein the instrument is configured to press the at least one flexible sheet against the pumping chamber to seal the pumping chamber for operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A dialysis system comprising:
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a dialysis instrument; and a disposable cassette, the cassette defining three dialysate pump chambers, the dialysis instrument including three pump actuators operable with the three pump chambers of the disposable cassette. - View Dependent Claims (16, 17)
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18. A dialysis system comprising:
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a plurality of pump actuators; a disposable cassette including three pump chambers operable with the plurality of pump actuators; and a controller operable with the pump actuators to cause (i) a pump-out stroke of a second one of the pump chambers to begin while a pump-out stroke of a first one of the pump chambers is taking place; and
(ii) a pump-out stroke of a third one of the pump chambers to begin while the pump-out stroke of the second one of the pump chambers is taking place. - View Dependent Claims (19, 20)
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21. A dialysis system comprising:
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a plurality of pump actuators; a disposable cassette including three pump chambers operable with the plurality of pump actuators; and a controller operable with the pump actuators to cause (i) first and second ones of the pump chambers to pump-out together, splitting discharged fluid between a patient and a third one of the pump chambers; and
(ii) the third one of the pump chambers to pump-out to the patient while the first and second ones of the pump chambers perform a chamber-fill stroke. - View Dependent Claims (22, 23)
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Specification