1
Lori A Truitt, Frank Corbin III, Donn D Lobdell, Douglas P Miller, Keith Manica, George J Eilers, Steven H Johnson, Lawrence L Leppert: Technique for extracorporeal treatment of blood. COBE Laboratories, Carol W Holland & Hart Burton, June 8, 1999: US05910252 (165 worldwide citation)

Blood from a patient is treated extracorporeally by any selected one of a plurality of predetermined treatments. Each of the treatments involves the flow of blood from the patient into a primary chamber of a filtration unit, past a semipermeable membrane located in the filtration unit which separate ...


2
Hans Dietrich Polaschegg: Method for the in-vivo determination of hemodialysis parameters. Fresenius, Marshall O Toole Gerstein Murray & Bicknell, March 31, 1992: US05100554 (135 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 ...


3
Bruce A Peterson, Michael E Hogard: Method and apparatus for kidney dialysis. Althin Medical, Klarquist Sparkman Campbell Leigh & Whinston, January 30, 1996: US05487827 (134 worldwide citation)

A number of improvements relating to methods and apparatuses for kidney dialysis are disclosed. These include checking of dialysate bypass status using flow measurement; using a flow sensor to confirm the absence of ultrafiltration during bypass; automatic testing of ultrafiltration function by remo ...


4
Rodney S Kenley, Dawn Matthews, Dennis M Treu, Frederick H Peter Jr, Thomas M Feldsein: Method of rinsing back blood to hemodialysis patient. Aksys, McDonnell Boehnen Hulbert & Berghoff, November 25, 1997: US05690831 (133 worldwide citation)

A method is described herein for automatically rinsing blood back to a patient. The method comprises the steps of pumping dialysate (or, alternatively, saline solution) through a dialyzer into an extracorporeal circuit, and pumping blood in the extracorporeal circuit out the arterial and venous line ...


5
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 (133 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 ...


6
Suhail Ahmad, James J Cole, William Jensen: Combined hemofiltration and hemodialysis system. The Board of Regents of the University of Washington, Seed and Berry, May 19, 1992: US05114580 (132 worldwide citation)

A hemodialysis system has a blood circuit and a hemofiltrate circuit interconnected at a hemofilter and an air collection chamber. If an infusion of sterile fluid to the returning blood is needed during the dialysis treatment, filtrate in the filtrate circuit is pumped back into the blood circuit. T ...


7
Frederick H Peter Jr, Eric Bell, Thomas M Feldsein: Hemodialysis machine with automatic priming by induced pressure pulses. Aksys, McDonnell Boehnen Hulbert & Berghoff, January 26, 1999: US05863421 (130 worldwide citation)

A hemodialysis machine is described that has an extracorporeal circuit that is primed automatically prior to connection of the patient to the machine. The priming is accomplished by filling the extracorporeal circuit with a priming fluid, such as a saline or dialysate solution or blood. The blood pu ...


8
Jeffrey B Grogan, Thore Falkvall, Harley D Johnson, Thomas D Kelly, Alan G Wolfe: Method and apparatus for kidney dialysis using machine with programmable memory. Althin Medical, Klarquist Sparkman Campbell Leigh & Whinston, July 5, 1994: US05326476 (130 worldwide citation)

Methods are disclosed for providing certain operational instructions to a hemodialysis machine. The hemodialysis machine possesses a programmable memory and a capability of operating according to a time-varying parameter such as variable ultrafiltration. According to the methods, the machine operato ...


9
Michael E Hogard, Harley D Johnson, Thomas D Kelly, Jean McEvoy Long, Bruce A Peterson, William G Preston Jr: Method and apparatus for kidney dialysis. Baxter International, Paula J F Kelly, Charles R Mattenson, Robert M Barrett, September 4, 2001: US06284131 (126 worldwide citation)

A number of improvements relating to methods and apparatuses for kidney dialysis are disclosed. These include checking of dialysate bypass status using flow measurement; using a flow sensor to confirm the absence of ultrafiltration during bypass; automatic testing of ultrafiltration function by remo ...


10
Rodney S Kenley, Dennis M Treu, Tom L Brose, Thomas M Feldsein, Kenneth E Pawlak: Methods for ultrafiltration control in hemodialysis. AKSYS, McDonnell Boehnen Hulbert & Berghoff, March 10, 1998: US05725776 (122 worldwide citation)

Methods and apparatus for increasing the accuracy of ultrafiltration in a dialysis machine and decreasing the time required for dialysis. The machine inclused a substantially non-compliant tank for mixing and storing a batch of dialsyate. In a preferred form, the tank is a hollow vessel made from a ...