Method and apparatus for monitoring and controlling peritoneal dialysis therapy
First Claim
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1. A method of performing peritoneal dialysis comprising:
- locating a pressure sensor at a conduit upstream or downstream from a dialysis fluid compartment of one of a first or second pump chamber and at a common diaphragm shared with at least one of the first or second pump chambers;
actuating the first pump chamber and the second pump chamber;
sensing a pressure of a peritoneal dialysis fluid in the conduit upstream or downstream from the dialysis fluid compartment of the one of the first or second pump chambers using the pressure sensor;
adjusting a planned peritoneal dialysis treatment based on the sensed pressure to avoid an alarm condition; and
performing the adjusted peritoneal dialysis treatment.
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Abstract
A method of performing peritoneal dialysis is provided. The method involves sensing a pressure in a fluid upstream or downstream of a pump chamber and adjusting a planned peritoneal dialysis treatment based on the sensed pressure to avoid an alarm condition. An intra-peritoneal pressure may be sensed and may be related to a head height of a peritoneal dialysis patient relative to a pump actuation. The fill volume to the peritoneal dialysis patient may also be limited due to the sensed pressure.
675 Citations
24 Claims
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1. A method of performing peritoneal dialysis comprising:
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locating a pressure sensor at a conduit upstream or downstream from a dialysis fluid compartment of one of a first or second pump chamber and at a common diaphragm shared with at least one of the first or second pump chambers; actuating the first pump chamber and the second pump chamber; sensing a pressure of a peritoneal dialysis fluid in the conduit upstream or downstream from the dialysis fluid compartment of the one of the first or second pump chambers using the pressure sensor; adjusting a planned peritoneal dialysis treatment based on the sensed pressure to avoid an alarm condition; and performing the adjusted peritoneal dialysis treatment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of performing peritoneal dialysis using a first pump chamber and a second pump chamber, the method comprising:
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locating a first pressure sensor at a first conduit so as to be able to sense intraperitoneal pressure; locating a second pressure sensor at a second conduit so as to be able to sense intraperitoneal pressure; operating the first pump chamber and the second pump chamber; sensing the intraperitoneal pressure using the first pressure sensor while fluid is pumped through the second conduit; sensing the intraperitoneal pressure using the second pressure sensor while fluid is pumped through the first conduit; and adjusting a planned peritoneal dialysis treatment based on at least one of the first or second sensed pressures to avoid an alarm condition. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of performing peritoneal dialysis comprising:
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providing a dialysis fluid cassette with a diaphragm operated pump chamber; applying a positive and a negative pressure to the diaphragm operated pump chamber; sensing a pressure in a peritoneal dialysis fluid entering or leaving a dialysis fluid compartment of the diaphragm operated pump chamber through a diaphragm shared with the diaphragm operated pump chamber by contacting the diaphragm with a pressure sensor; and adjusting a planned peritoneal dialysis treatment based on the sensed pressure to ensure that a pressure of the peritoneal dialysis fluid inside a patient does not exceed a pressure limit. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification