1
Dean Kamen, Geoffrey P Spencer, Douglas E Vincent: Peritoneal dialysis systems employing a liquid distribution and pumping cassette that emulates gravity flow. Deka Products Partnership, Charles R Mattenson, Thomas S Borecki, Daniel D Ryan, September 27, 1994: US05350357 (361 worldwide citation)

Peritoneal dialysis systems apply fluid pressure to move liquid. The systems can emulate either a fixed head height condition or different head height conditions, independent of the actual head height differential between the patient's peritoneal cavity and the external liquid source or destination. ...


2
Warren J Packard: Peritoneal dialysis system with variable pressure drive. Baxter International, Charles R Mattenson, Thomas S Borecki, Richard P Beem, August 17, 1999: US05938634 (301 worldwide citation)

A variable pressure drive peritoneal dialysis system has a pneumatic pressure system for purging and controlling a flow of dialysate through a disposable dialysate cassette of a disposable dialysate delivery set. The pneumatic pressure system has a variable-opening flow proportional valve for supply ...


3
Dean Kamen, Richard Lanigan, Douglas E Vincent: Peritoneal dialysis systems and methods employing a liquid distribution and pump cassette with self-contained air isolation and removal. Deka Products Partnership, Thomas S Borecki, Charles R Mattenson, Richard P Beem, May 13, 1997: US05628908 (295 worldwide citation)

Systems and methods for peritoneal dialysis establish flow communication between a patient's peritoneal cavity and a drain through a pump chamber having generally vertically spaced upper and lower regions andt a diaphragm. The systems and methods operate the pump chamber, with the upper and lower re ...


4
Robert J Bryant, Dean Kamen, Douglas E Vincent: Peritoneal dialysis systems and methods employing pneumatic pressure and temperature-corrected liquid volume measurements. Deka Products Partnership, Thomas S Borecki, Charles R Mattenson, Richard P Beem, December 12, 1995: US05474683 (259 worldwide citation)

Peritoneal dialysis systems and methods move liquid using a pump chamber that is operated in response to pneumatic pressure variations applied by a pump actuator. The systems and methods periodically measure air pressures in the actuator and an associated reference air chamber and derive from these ...


5
Robert J Bryant, Clement D Bouchard, Dean Kamen, Richard Lanigan, Bradley D Miller, Geoffrey P Spencer, Douglas E Vincent: Liquid pumping mechanisms for peritoneal dialysis systems employing fluid pressure. Deka Products Partnership, Thomas S Borecki, Charles R Mattenson, Daniel D Ryan, July 11, 1995: US05431626 (256 worldwide citation)

Pumping mechanisms for performing peritoneal dialysis and the like employ a pumping mechanism comprising a diaphragm that operate in response to applied fluid pressure. Flexible tubing is attached to the pumping mechanism for carrying liquid to and from the patient's peritoneal cavity. An actuating ...


6
Robert J Bryant, Jeffrey Finkelstein, Dean Kamen, Richard Lanigan, Bradley D Miller, Geoffrey P Spencer: User interface and monitoring functions for automated peritoneal dialysis systems. Deka Products Partnership, Thomas S Borecki, Charles R Mattenson, Daniel D Ryan, August 1, 1995: US05438510 (252 worldwide citation)

Systems for performing peritoneal dialysis having an improved user interface functions and monitoring capabilities. In one respect, the systems discriminate between alarm conditions that require user intervention to correct and alarm conditions that reflect conditions that are anomalies but typicall ...


7
Dean Kamen, Geoffrey P Spencer: Peritoneal dialysis methods that emulate gravity flow. Deka Products Partnership, Charles R Mattenson, Thomas S Borecki, Daniel D Ryan, June 6, 1995: US05421823 (245 worldwide citation)

Peritoneal dialysis systems and methods apply fluid pressure to move liquid. The systems and methods can emulate either a fixed head height condition or different head height conditions, independent of the actual head height differential between the patient's peritoneal cavity and the external liqui ...


8
Robert J Bryant, Clement D Bouchard, Dean Kamen, Richard Lanigan, Bradley D Miller, Geoffrey P Spencer, Douglas E Vincent: Liquid pumping mechanisms for peritoneal dialysis systems employing fluid pressure. Deka Products Partnership, Thomas S Borecki, Charles R Mattenson, Richard P Beem, June 3, 1997: US05634896 (239 worldwide citation)

Pumping mechanisms for performing peritoneal dialysis and the like employ a pumping mechanism comprising a diaphragm that operate in response to applied fluid pressure. Flexible tubing is attached to the pumping mechanism for carrying liquid to and from the patient's peritoneal cavity. An actuating ...


9
Warren J Packard, Kenneth E Pawlak: Instantaneous volume measurement system and method for non-invasively measuring liquid parameters. Baxter International, Thomas S Borecki, Charles R Mattenson, Robert M Barrett, June 6, 1995: US05421208 (109 worldwide citation)

A non-invasive technique and system is provided for measuring flow of liquid driven by a flexible diaphragm of a membrane pump (18). Flow, pressure and/or temperature of a gas, such as air, used to drive the pump (18) is continuously monitored. Instantaneous volume of liquid being pulled into or out ...


10
Prakash R Keshaviah: Method and system for optimizing dialysis clearance. Baxter International, Thomas S Borecki, Charles R Mattenson, Robert M Barrett, April 16, 1996: US05507723 (107 worldwide citation)

A system and method using same are provided for determining the optimum operating conditions of a dialysis process that yields the highest whole body dialysis clearance. The system varies a parameter that effects dialysis efficiency during part of a dialysis run. The system then measures a metabolit ...