1
Stefan Tauschinski: Self-sealing connector for use with plastic cannulas and vessel catheters. Eduard Fresenius Chemisch Pharmazeutische Industrie KG, Perry Carvellas, June 14, 1983: US04387879 (419 worldwide citation)

A connector which is adapted to be connected to a plastic cannula or a vein catheter comprises a tubular and/or conical portion that is adapted to be tightly joined to a parenteral solution supply needle and/or to a hose provided with a cone fitting. To ensure that a metal cannula or a vessel cathet ...


2
Petra Abel, Wolfgang Allendorfer: Biosensor. Fresenius, Omri M Behr Esq, December 1, 1998: US05842983 (229 worldwide citation)

Biosensor for amperometric measurements wherein the measuring electrode (34) is made of an electrically conductive carrier made of carbon which is saturated with a platinum metal in colloidal form wherein a lead-off contact (10) of vitreous carbon runs from the measuring electrode (34). The porous c ...


3
Rainer Dönig, Wolfgang Schulz: Cassette for delivering fluids, especially dialysis fluids. Fresenius Medical Care Deutschland, Kenyon & Kenyon, June 1, 2004: US06743201 (221 worldwide citation)

A cassette for delivering fluids, especially dialysis fluids, with connecting elements for connecting solution bags and lines leading to the patient for to the dialysis machine, with at least one delivery chamber with an inlet and outlet, with lines for carrying the fluids supplied and delivered, wi ...


4
Peter Wolbring, Dirk Anderheiden: Port cannula arrangement for connection to a port. Fresenius, Jack Schuman, October 10, 1995: US05456675 (174 worldwide citation)

Main cannula arrangement (10) with a metal cannula (12) and a connecting piece (14), featuring a valve (46), which is closed in the disconnected state and open in the connected state.


5
Wolfgang Simon, Gunther Pototzky, Rolf Groos, Gunter Schmidt: Peritoneal dialysis device. Fresenius, Marshall O Toole Gerstein Murray & Borun, August 6, 1996: US05542919 (170 worldwide citation)

Peritoneal dialysis device (10) with a balancing chamber (28), which is divided into two balancing chamber halves (32 and 34) by a membrane (30), with an introduction line arrangement (16, 20, 22, 24), a discharge arrangement (22, 24, 20, 62), a catheter line arrangement (36, 38, 42), a valve arrang ...


6
Hans Dietrich Polaschegg: Method and device for ultrafiltration during hemodialysis. Fresenius, Marshall O Toole Gerstein Murray & Bicknell, March 5, 1991: US04997570 (156 worldwide citation)

A method and a device for ultrafiltration during hemodialysis are described in which ultrafiltrate fluid, before removal from the dialysis circuit, is passed through a balancing device, which is also used as ultrafiltrate pump. For this purpose, a controller controls and actuates inlet, outlet, and ...


7
Hans Dietrich Polaschegg: Pump arrangement for medical purposes. Fresenius, Townsend & Townsend, January 6, 1987: US04634430 (143 worldwide citation)

Pump arrangement (10) for medical purposes, in particular blood or infusion pump, comprising a pump housing (12) having two pump chambers (16, 18), of which the work chamber (16) is subjected to the liquid to be pumped while the drive chamber (18) is connected via a connecting conduit to a pneumatic ...


8
Hans Dietrich Polaschegg: Apparatus for dosed continuous simultaneous infusion of a plurality of infusion solutions or medicaments. Fresenius, Poms Smith Lande & Rose, October 30, 1990: US04966579 (142 worldwide citation)

An apparatus is described for dosed continuous simultaneous infusion of several solutions or medicaments which are arranged in a plurality of containers (25, 26) or syringes (3, 4). From said containers (25, 26) or syringes (3, 4) connecting conduits or tubes (18-21) lead which are connected via a j ...


9
Hans Dietrich Polaschegg: Process for determining the operability of the structural components in the dialysis section of a dialyzer of a hemodialysis apparatus and apparatus for executing this process. Fresenius, Sterne Kessler Goldstein & Fox P L L C, December 3, 1996: US05580460 (141 worldwide citation)

A method and apparatus for monitoring the operability of components in a hemodialysis apparatus during dialysis treatment. The dialyzer is isolated from the dialyzing liquid circuit for a time interval during dialysis treatment. During the isolation time interval, the dialyzing liquid circuit pressu ...


10
Hans Dietrich Polaschegg: Method for the in-vivo determination of hemodialysis parameters. Fresenius, Marshall O Toole Gerstein Murray & Bicknell, March 31, 1992: US05100554 (138 worldwide citation)

This invention relates to a method for the in-vivo determination of hemodialysis parameters. To carry out hemodialysis with the greatest efficiency and safety, it is inter alia necessary to know the clearance of the dialyzer. To be able to determine the same in vivo, the invention provides a method ...