Abstract: An apparatus for performing peritoneal dialysis includes a housing; a peritoneal dialysis supply bag supported by and/or located above the housing; a first valve for controlling gravity flow of fresh peritoneal dialysis fluid from the supply bag to a patient; a second valve for controlling gravity flow of used peritoneal dialysis fluid from the patient to a drain; and a pressure sensor positioned and arranged with respect to the gravity flow of fresh peritoneal dialysis fluid or the gravity flow of used peritoneal dialysis fluid to provide a reading used to evaluate a head height pressure.

Abstract: An apparatus for performing peritoneal dialysis includes a housing; a peritoneal dialysis supply bag supported by and/or located above the housing; a first valve for controlling gravity flow of fresh peritoneal dialysis fluid from the supply bag to a patient; a second valve for controlling gravity flow of used peritoneal dialysis fluid from the patient to a drain; and a pressure sensor positioned and arranged with respect to the gravity flow of fresh peritoneal dialysis fluid or the gravity flow of used peritoneal dialysis fluid to provide a reading used to evaluate a head height pressure.

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.

Abstract: A peritoneal dialysis system includes: (i) a fluid cassette including diaphragm operated first and second pump chambers; (ii) a first pressure sensor operable with the first pump chamber; (iii) a second pressure sensor operable with the second pump chamber; and (iv) a to-patient port of the cassette in fluid communication with the first and second pump chambers, wherein the first pressure sensor is located between the first pump chamber and the to-patient port and the second pressure sensor is located between the second pump chamber and the to-patient port.

Abstract: A peritoneal dialysis system includes a cycler operable with a disposable cassette, the cassette connected to a patient line, the cassette capable of fluid communication with a catheter having access to a patient's peritoneal cavity, the cycler configured to: (i) convey dialysis fluid to the peritoneal cavity through the patient line and the catheter during a patient fill phase; (ii) allow the dialysis fluid to dwell within the peritoneal cavity during a patient dwell phase; (iii) convey dialysis fluid away from the peritoneal cavity through the patient line and the catheter during a patient drain phase; and (iv) sense, at first and second sensing locations of the disposable cassette via first and second pressure sensors, an intraperitoneal pressure through the catheter to optimize an amount of fluid conveyed during the patient fill phase, so that the peritoneal cavity is not overpressurized during the patient dwell phase.

Abstract: A peritoneal dialysis system includes a removable cassette defining a flexible pump chamber and a pressure sensing area that is fluidly connected to the pump chamber wherein, during operation of the peritoneal dialysis system, peritoneal dialysis fluid is contained in the pump chamber; and a peritoneal dialysis machine configured to secure the removable cassette, peritoneal dialysis machine including (i) a pressure sensor positioned to align with and to contact the pressure sensing area of the removable cassette when the removable cassette is secured to the peritoneal dialysis machine, and (ii) a controller connected to the pressure sensor and adapted to change the operation of the peritoneal dialysis machine in response to changes in pressure sensed by the pressure sensor, wherein the pressure sensor and the pressure sensing area are arranged so that the pressure sensor measures a pressure of fluid in a fluid passage between the pump chamber and a patient during operation of the peritoneal dialysis system.

Abstract: A peritoneal dialysis system includes a removable cassette defining a flexible pump chamber and a pressure sensing area that is fluidly connected to the pump chamber wherein, during operation of the peritoneal dialysis system, peritoneal dialysis fluid is contained in the pump chamber; and a peritoneal dialysis machine configured to secure the removable cassette, peritoneal dialysis machine including (i) a pressure sensor positioned to align with and to contact the pressure sensing area of the removable cassette when the removable cassette is secured to the peritoneal dialysis machine, and (ii) a controller connected to the pressure sensor and adapted to change the operation of the peritoneal dialysis machine in response to changes in pressure sensed by the pressure sensor, wherein the pressure sensor and the pressure sensing area are arranged so that the pressure sensor measures a pressure of fluid in a fluid passage between the pump chamber and a patient during operation of the peritoneal dialysis system.

Abstract: A peritoneal dialysis system includes a cycler operable with a disposable cassette, the cassette connected to a patient line, the cassette capable of fluid communication with a catheter having access to a patient's peritoneal cavity, the cycler configured to: (i) convey dialysis fluid to the peritoneal cavity through the patient line and the catheter during a patient fill phase; (ii) allow the dialysis fluid to dwell within the peritoneal cavity during a patient dwell phase; (iii) convey dialysis fluid away from the peritoneal cavity through the patient line and the catheter during a patient drain phase; and (iv) sense, at first and second sensing locations of the disposable cassette via first and second pressure sensors, an intraperitoneal pressure through the catheter to optimize an amount of fluid conveyed during the patient fill phase, so that the peritoneal cavity is not overpressurized during the patient dwell phase.

Abstract: Peritoneal Dialysis systems, methods, and catheters are provided for performing peritoneal dialysis therapies. Multiple fluid pathways are provided to a patient's peritoneal cavity for conveying dialysis fluid to and from the patient.

Abstract: A peritoneal dialysis system includes: (i) a fluid cassette including diaphragm operated first and second pump chambers; (ii) a first pressure sensor operable with the first pump chamber; (iii) a second pressure sensor operable with the second pump chamber; and (iv) a to-patient port of the cassette in fluid communication with the first and second pump chambers, wherein the first pressure sensor is located between the first pump chamber and the to-patient port and the second pressure sensor is located between the second pump chamber and the to-patient port.

Abstract: Peritoneal Dialysis systems, methods, and catheters are provided for performing peritoneal dialysis therapies. Multiple fluid pathways are provided to a patient's peritoneal cavity for conveying dialysis fluid to and from the patient.

Abstract: Peritoneal dialysis systems, methods, and catheters are provided for performing peritoneal dialysis therapies. Multiple fluid pathways are provided to a patient's peritoneal cavity for conveying dialysis fluid to and from the patient.

Abstract: An automated peritoneal dialysis system and method are provided for monitoring and controlling automated peritoneal dialysis therapy based upon intraperitoneal pressure measured at a point near the end of the patient catheter during the fill, dwell and drain phases of automated peritoneal dialysis therapy.

Abstract: Peritoneal dialysis systems, methods, and catheters are provided for performing peritoneal dialysis therapies. Multiple fluid pathways are provided to a patient's peritoneal cavity for conveying dialysis fluid to and from the patient.