DIALYSIS SYSTEM AND METHOD FOR CASSETTE-BASED PUMPING AND VALVING
First Claim
1. A peritoneal dialysis system comprising:
- a disposable cassette including a flexible sheet;
a hardware unit including (i) at least one pump actuator and piston head moved by the pump actuator, (ii) at least one valve actuator, (iii) at least one sensor, and (iv) a disposable cassette interface for interfacing with the disposable cassette, the disposable cassette interface including;
(a) at least one pump aperture, the at least one piston head moveable out of and retractable into the at least one pump aperture to move a corresponding pumping portion of the flexible sheet of the disposable cassette, the piston head moving within a vacuum chamber, the vacuum chamber enabling a vacuum to be pulled around the piston head to the flexible sheet of the disposable cassette;
(b) at least one valve aperture, at least a portion of the at least one valve actuator located in the valve aperture to move a valve portion of the flexible sheet of the disposable cassette; and
(c) at least one sensor aperture, the at least one sensor located in the at least one sensor aperture, the at least one sensor operable with a sensor portion of the flexible sheet of the disposable cassette.
1 Assignment
0 Petitions
Accused Products
Abstract
A peritoneal dialysis system includes a disposable cassette including a flexible sheet; a hardware unit including (i) at least one pump actuator and piston head moved by the pump actuator, (ii) at least one valve actuator, (iii) at least one sensor, and (iv) a disposable cassette interface for interfacing with the disposable cassette, the disposable cassette interface including: (a) at least one pump aperture, the at least one piston head moveable out of and retractable into the at least one pump aperture to move a corresponding pumping portion of the flexible sheet of the disposable cassette, the piston head moving within a vacuum chamber, the vacuum chamber enabling a vacuum to be pulled around the piston head to the flexible sheet of the disposable cassette; (b) at least one valve aperture, at least a portion of the at least one valve actuator located in the valve aperture to move a valve portion of the flexible sheet of the disposable cassette; and (c) at least one sensor aperture, the at least one sensor located in the at least one sensor aperture, the at least one sensor operable with a sensor portion of the flexible sheet of the disposable cassette.
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Citations
20 Claims
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1. A peritoneal dialysis system comprising:
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a disposable cassette including a flexible sheet; a hardware unit including (i) at least one pump actuator and piston head moved by the pump actuator, (ii) at least one valve actuator, (iii) at least one sensor, and (iv) a disposable cassette interface for interfacing with the disposable cassette, the disposable cassette interface including; (a) at least one pump aperture, the at least one piston head moveable out of and retractable into the at least one pump aperture to move a corresponding pumping portion of the flexible sheet of the disposable cassette, the piston head moving within a vacuum chamber, the vacuum chamber enabling a vacuum to be pulled around the piston head to the flexible sheet of the disposable cassette; (b) at least one valve aperture, at least a portion of the at least one valve actuator located in the valve aperture to move a valve portion of the flexible sheet of the disposable cassette; and (c) at least one sensor aperture, the at least one sensor located in the at least one sensor aperture, the at least one sensor operable with a sensor portion of the flexible sheet of the disposable cassette. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A peritoneal dialysis system comprising:
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a disposable cassette including a flexible sheet; a pump actuator; a piston head moved by the pump actuator; a disposable cassette interface for interfacing with the disposable cassette, the disposable cassette interface including a pump opening, the piston head moveable out of and retractable into the pump opening to move a corresponding pumping portion of the flexible sheet of the disposable cassette, the piston head moving within a vacuum chamber, the vacuum chamber enabling a vacuum to be pulled around the piston head to the flexible sheet of the disposable cassette; and a plate through which the pump actuator extends towards the pump opening of the disposable cassette interface, the plate defining a vacuum aperture through which the vacuum is pulled around the piston head to the flexible sheet of the disposable cassette. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A peritoneal dialysis system comprising:
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a disposable cassette including a flexible sheet; a pump actuator; a piston head moved by the pump actuator; a disposable cassette interface for interfacing with the disposable cassette, the disposable cassette interface including a pump opening, the piston head moveable out of and retractable into the pump opening to move a corresponding pumping portion of the flexible sheet of the disposable cassette, the piston head moving within a vacuum chamber, the vacuum chamber enabling a vacuum to be pulled around the piston head to the flexible sheet of the disposable cassette; and a plate to which the pump actuator is mounted, the plate defining a vacuum aperture through which the vacuum is pulled around the piston head to the flexible sheet of the disposable cassette. - View Dependent Claims (19, 20)
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Specification