A diaphragm pump, includes a case, a diaphragm dividing a space in the case into a first space and a second space, a liquid feed flow path including an inflow path to introduce a liquid to be fed into the first space and an outflow path to discharge the liquid to be fed from the first space, a drive unit including a compression/decompression device that repeatedly causes displacement of the diaphragm by repeating compression and decompression of a driving fluid filling the second space, and a valve mechanism to open and close the inflow path and the outflow path. The drive unit includes a pressure release mechanism to release pressure of the driving fluid after the driving fluid is compressed or decompressed by the compression/decompression device.

An apparatus and method for extracorporeal blood treatment, especially a dialysis apparatus, are disclosed, the apparatus includes a radar sensor for monitoring a patient located at a place of treatment.

The invention relates to a medical treatment apparatus comprising a tube set 20, a peristaltic pump 6 for conveying fluid, and a monitoring apparatus 15 for monitoring the occlusion of the positive displacement elements 13A, 13B of the peristaltic pump. In addition, the invention relates to a tube set 20 for a medical treatment apparatus, and to a method for monitoring the occlusion of the occlusion elements of a peristaltic pump for conveying a fluid for a medical treatment apparatus. The invention is based on the fact that the occlusion of the positive displacement elements 13A, 13B of the peristaltic pump 6 is monitored in order to monitor the fluid flow in the hose line 5. For this purpose, the electrical resistance or a variable which correlates with the electrical resistance is measured between a first and a second electrode 16A, 16B, the first electrode 16A being arranged on the hose line 5 upstream of the occlusion elements 12 of the peristaltic pump 6 and the second electrode 16b being arranged on the hose line downstream of the occlusion elements such that an electrical contact is produced between the first and second electrode 16A, 16B and the fluid flowing in the hose line 5. The electrodes 16A, 16B are preferably integral component parts of a connecting piece 10, by means of which the hose segment 5A to be inserted into the peristaltic pump 6 is fixed in the form of a loop.

Provided is a blood dialyzing apparatus having multiple fluid chambers each having an internal space, a chamber pressurizing member compressing or expanding the internal spaces of the chambers, a chamber pressurizing member driver driving the chamber pressurizing member, and a flow control unit. The chambers are each connected with a first flow tube through which a fluid is provided to the chamber and a second flow tube through which a fluid of the chamber is discharged therefrom. The flow control unit controls a flow through the flow tubes connected to the multiple fluid chambers.

A dialysis apparatus has a connection channel that communicatively connects a dialysate circuit and a blood circuit, and circulates dialysate from the dialysate circuit to the blood circuit via the connection channel during a priming operation. A blood pump has a tube attachment device that switches from an unattached state in which a tube is positioned outside a housing and permits liquid to circulate thereinside, to an attached state in which the tube is in the housing and a rotor compresses the tube. At the time of priming, the liquid feeding pump feeds dialysate from the dialysate circuit to the blood circuit via the connection channel. With the blood pump being in the unattached state, the dialysate is circulated past the blood pump, and then, with the blood pump in the attached state, the dialysate is circulated in a direction opposite to the blood pump.

A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.

A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.

A system and method for increasing the speed of blood and wall shear stress (WSS) in a peripheral vein for a sufficient period of time to result in a persistent increase in the overall diameter and lumen diameter of the vein is provided. The method includes pumping blood at a desired rate and pulsatility. The pumping is monitored and adjusted, as necessary, to maintain the desired blood speed, WSS and pulsatility in the peripheral vein in order to optimize the rate and extent of dilation of the peripheral vein.

A system and method for increasing the speed of blood and wall shear stress (WSS) in a peripheral vein for a sufficient period of time to result in a persistent increase in the overall diameter and lumen diameter of the vein is provided. The method includes pumping blood at a desired rate and pulsatility. The pumping is monitored and adjusted, as necessary, to maintain the desired blood speed, WSS and pulsatility in the peripheral vein in order to optimize the rate and extent of dilation of the peripheral vein.

An extracorporeal blood line set for a blood treatment machine or as part of a blood treatment machine, especially a dialysis machine. The extracorporeal blood line set includes an arterial blood line having a distal patient access and a proximal device port, preferably a dialyzer port, a venous blood line having a distal patient access and a proximal device port, preferably a dialyzer port, and at least one fluid supply line which is connected to the arterial and/or venous blood line(s) in at least one port section of the arterial and/or venous blood line(s) and at one end includes a container port or a fluid container. The at least one port section is in the form of a Venturi nozzle.