1
Hans Dietrich Polaschegg, Bernd Mathieu: Pump system for use with dialysis and like apparatus. Fresenius, Finnegan Henderson Farabow Garrett & Dunner, November 12, 1985: US04552552 (108 worldwide citation)

The present invention is with respect to a dialysis pumping system, and more specially to a single needle dialysis apparatus with a dialyser having blood and dialysate circuits and which has blood inlets and outlets that are joined by intake and outlet lines with at least one blood connection. The i ...


2
Glenn L Tuttle: Apparatus for controlling blood flow. Sandoz, Gerald D Sharkin, Robert S Honor, Walter F Jewell, December 6, 1977: US04061142 (63 worldwide citation)

This invention provides a single needle dialysis blood tubing occluder, comprising in a preferred aspect, a pair of pivotly mounted clamping arms having a leaf spring affixed to the non-pivot end of each occluder with the spring in slidable engagement with a symmetrical cam. Means are provided for a ...


3
Kopp Klaus F: Single needle dialysis. Vital Assists, September 4, 1973: US3756234 (59 worldwide citation)

Method and apparatus for extracorporeally dialyzing the blood of a patient with only a single venipuncture including withdrawing blood from the patient through the venipuncture and forcing the blood along an arterial path to a dialyzer. Blood emerging from the dialyzer is then conducted along a veno ...


4
Shill Karl: Blood pump. Wilcox Robyn, May 21, 1974: US3811800 (36 worldwide citation)

This invention relates to a pump for an 'artificial kidney machine', or hemodialysis device; and primarily is designed for the pumping of blood for purification in such a system using the recently announced procedure of 'single needle' dialysis, whereby a single needle is temporarily inserted into a ...


5
Caleffi Luca: Circuit for extracorporeal blood circulation. Gambro Lundia, Caleffi Luca, VILLANOVA Massimo, September 30, 2004: WO/2004/082731 (23 worldwide citation)

A circuit for extracorporeal blood circulation, which is used for a single-needle dialysis, comprises a blood withdrawal line (2) having an arterial pump portion (23), and a blood return line (4) having a venous pump portion (43). Pump portions are designed to be coupled with corresponding peristalt ...


6
William A Lepp, Jules O Legal: Dialysis pump system having over-center cam tracks to lock rollers against tubing. Stanley G Ade, March 6, 1979: US04142845 (21 worldwide citation)

A source of power rotates a drive shaft upon which a pair of rollers are mounted. The rollers rotate in a recess and collapse an undialysed blood carrying tube against a wall thus causing a pumping action. When used with a single needle dialysis system, an occluding pin assembly intermittently clamp ...


7
Bernd Mathieu, Hans Dietrich Polaschegg: Dialysis apparatus. Fresenius, Omri M Behr, April 30, 1985: US04514295 (21 worldwide citation)

A blood accumulator for use in single needle dialysis systems is provided with elastic walls so that expansion of the accumulator in an outward direction may take place and in the filled condition, the walls are stretched. After the blood input pump is stopped and a valve opened, blood makes its way ...


8
Perry W Guinn: Method and apparatus for single needle dialysis. CD Medical, July 10, 1990: US04940455 (13 worldwide citation)

A dialysis apparatus includes a series blood circuit that extends from a single needle through a hemodialyzer and back to the needle. Extending from this circuit is a single ended arm that includes a pump and a blood accumulation chamber. The pump is cyclically operated in opposite directions (in co ...


9
Gerhard Bock, Michael Panse, Dieter Rath, Heinrich Eckel, Rolf Heitmeier: Dialytic apparatus. Intermedicat, Spensley Horn Jubas & Lubitz, July 19, 1988: US04758336 (10 worldwide citation)

A dialytic apparatus for single-needle dialysis comprises a first pump in the artery conduit, which first pump in the first phase conveys blood from the patient into the expansion chamber while the vein conduit is shut off. At the same time, the second pump transports blood from the expansion chambe ...


10
Luca Caleffi: Circuit for extracorporeal blood circulation. Gambro Lundia, Finnegan Henderson Farabow Garrett & Dunner L, September 4, 2007: US07264607 (6 worldwide citation)

A circuit for extracorporeal blood circulation, which is used for a single-needle dialysis, comprises a blood withdrawal line (2) having an arterial pump portion (23), and a blood return line (4) having a venous pump portion (43). Pump portions are designed to be coupled with corresponding peristalt ...