Fresenius Medical Care Deutschland Gmbh

Rainer D&ouml;nig

Wolfgang Schulz

Joachim D&ouml;pper

Martin Herklotz

Hans-Peter Schneider

J&ouml;rg Bigalke

J&uuml;rgen H&auml;cker

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, with the walls of the lines being designed at least in some sections so that the lines can be closed by applying a compressive force acting on the walls. Heating and delivery of fluids, in particular dialysis fluids, can be performed effectively and simply by providing at least one area in the cassette where the lines are arranged in such a way that the medium in the lines can be heated to a predetermined set point by means of a heating device arranged outside the cassette. A dialysis machine, in particular for carrying out peritoneal dialysis, hemofiltration and plasma filtration, with a recess or device to accommodate a cassette according to the present invention and with a pump unit for operating the delivery chambers of the cassette. A heating device is provided in the dialysis machine, arranged in the area of the recesses or devices to accommodate the cassette. A method of delivering, balancing, metering and heating a medical fluid, where a fluid conveyed through the lines or at least one delivery chamber is also exposed to heating energy at the same time.

Cassette for delivering fluids, especially dialysis fluids

The present invention relates to a dialysis machine with a device for preparing dialysis solutions. Simple and reliable preparation of dialysis fluids of different concentrations is achieved by the fact that the device has a detector device, at least two connections and at least two interchangeable storage containers to hold the solution ingredients to be metered, each being connected to at least one connector, and with the connectors being connectable to the connections, and with the connectors or the areas of a connecting tube near the connectors having identification means which can be detected by the detector device. The present invention also relates to a connector for connecting a storage container with solution ingredients to a medical apparatus, where the connector or areas of a connecting tube near the connector has identification means. The present invention also relates to a method of detecting a connection of a solution ingredient storage container. A simple and reliable implementation of the method is guaranteed by the fact that the connector is provided with identification means and is attached to a matching component, and a reader unit determines the type and position of the connector.

Dialysis machine with a device for preparing dialysis solutions

The present invention relates to a pumping device for delivering and metering fluids, in particular medical fluids such as dialysis fluids, with a piston unit having a driving device and a piston and with a membrane unit which has a membrane and a first chamber bordered by the membrane. The pumping device also has a hydraulic unit which has a space to accommodate a hydraulic fluid which is connected to the piston of the piston unit and to the first chamber of the membrane unit. The reliability of metering by such a pumping device is increased by providing a control unit for guaranteeing a predefinable metering rate and/or quantity and also providing a measuring device by means of which the axial position of the piston unit can be determined directly and which can be connected to the control unit.

Pumping and metering device

Connector adapted to connect a storage container for solution ingredients to a medical apparatus

Growing community of inventors

Frankfurt-am-Main, Germany

Rainer Dönig

Growing community of inventors

Frankfurt-am-Main, Germany

Rainer D&ouml;nig

Rainer Dönig