1
Kulwinder S Plahey, Frank L Hedmann, Stephan Klatte, Thomas I Folden: Cassette system for peritoneal dialysis machine. Fresenius Medical Care Holdings, Fish & Richardson P C, May 3, 2011: US07935074 (86 worldwide citation)

A portable peritoneal dialysis apparatus having a side-hinged, inclined door for enclosing a disposable cassette that seals tightly shut using air pressure which imposes a safety interlock, a cassette with its inlet/outlet tube exclusively along the lower edge so that the connected lines can hang st ...


2
Frank L Hedmann, Stephan Klatte: Method and device for heating solutions, preferably dialysis solutions. Fresenius Medical Care Deutschland, Jacobson Holman PLLC, January 8, 2013: US08350195 (5 worldwide citation)

A method and an apparatus for the heating of a solution, such as a dialysis solution, to a desired temperature includes heating the solution presented in a bag. The heating is effected with a heater system, which includes a heater, by means of a two-step control. The temperature forming the lower sw ...


3
Frank L Hedmann, Stephan Klatte: Method for checking and/or monitoring the tightness of a plurality of pneumatically or hydraulically actuated actuators, and machine, especially medical treatment machine. Fresenius Medical Care Deutschland, Jacobson Holman PLLC, February 10, 2015: US08950241 (2 worldwide citation)

A method is provided of monitoring the leak tightness of a plurality of pneumatically or hydraulically actuated actuators of a machine, in particular a plurality of valve actuators of a medical treatment machine, in which pressure is exerted on the actuators in different combinations during operatio ...


4
Frank L Hedmann, Sven Sebesta, Ulrich Wernicke: Medical device heaters and methods. Fresenius Medical Care Deutschland, Fish & Richardson P C, January 16, 2018: US09867921

A medical device having a heater with at least one heating element which has mains voltage applied to it by a heating control unit. The heating control unit includes a monitoring arrangement and a switching arrangement. The monitoring arrangement can recognize the zero crossings of the mains voltage ...


5
Frank L Hedmann, Stephan Klatte: Method for actuating valves for controlling a flow path and machines, especially medical treatment machines. Fresenius Medical Care Deutschland, Jacobson Holman Hershkovitz PLLC, December 16, 2014: US08914156

A method is provided for the control of valves for flow path control, in particular in a medical treatment machine, having a plurality of processes for the manufacture of flow paths by control of a group of valves, with each process claiming a group of valves suitable for its carrying out for itself ...


6
Frank L Hedmann, Stephan Klatte: Method for actuating valves for controlling a flow path and machines, especially medical treatment machines. Fresenius Medical Care Deutschland, Jacobson Holman PLLC, January 21, 2014: US08634964

A method for the control of valves for flow path control, in particular in a medical treatment machine, having a plurality of processes for the manufacture of flow paths by control of a group of valves, with each process claiming a group of valves suitable for its carrying out for itself so that oth ...


7
Frank L Hedmann, Stephan Klatte: Method for checking and/or monitoring the leak tightness of a plurality of pneumatically or hydraulically actuated actuators and machine, in particular medical treatment machine. FRESENIUS MEDICAL CARE DEUTSCHALND, Jacobson Holman PLLC, March 6, 2018: US09907898

A method is provided of monitoring the leak tightness of a plurality of pneumatically or hydraulically actuated actuators of a machine, in particular a plurality of valve actuators of a medical treatment machine, in which pressure is exerted on the actuators in different combinations during operatio ...


8
Frank L Hedmann, Stephan Klatte: Dialysis cassettes and related systems and methods. Fresenius Medical Care Deutschland, Fish & Richardson P C, April 5, 2016: US09302040

A method that includes conveying overheated dialysate through a cassette in a manner to reduce the temperature of the overheated dialysate, and a dialysis system including a control unit configured to cause overheated dialysate to be conveyed through a cassette in a manner to reduce the temperature ...


9
Kulwinder S Plahey, Frank L Hedmann, Stephan Klatte, Thomas I Folden: Cassette system for peritoneal dialysis machine. Fish & Richardson PC, May 17, 2007: US20070112297-A1

A portable peritoneal dialysis apparatus having a side-hinged, inclined door for enclosing a disposable cassette that seals tightly shut using air pressure which imposes a safety interlock, a cassette with its inlet/outlet tube exclusively along the lower edge so that the connected lines can hang st ...


10
Kulwinder S Plahey, Frank L Hedmann, Stephan Klatte, Thomas I Folden: Portable apparatus for peritoneal dialysis therapy. Fresenius Medical Care Holdings, Fish & Richardson PC, August 31, 2006: US20060195064-A1

A portable peritoneal dialysis apparatus having (1) a hinged door for enclosing a disposable cassette that seals tightly shut using air pressure; (2) accurate pressure sensing of pressures applied to the patient through an enclosure in the disposable cassette; (3) two pumps that can operate separate ...