Gambro Lundia Ab

Volvo Car Corporation

Anton Persson

Olof Jansson

Lennart Jönsson

Sture Hobro

Albin Köster

Urban Hörnström

A cassette is provided for installation in a dialysis monitor to pump a treatment solution through a dialyzer. The cassette is a unitary component with a hydraulic manifold () and a pneumatic manifold () integrated into a body (). The body () has connectors for connecting the hydraulic manifold () to the dialyzer and the pneumatic manifold () to a pneumatic pressure source. A set of solution pumps is integrated in the cassette, and each solution pump includes a pump cavity inside the body. The solution pumps are operable to displace the treatment solution through the hydraulic manifold () to and/or from the dialyzer by action of a reciprocating gas-liquid interface in the pump cavity () of the respective solution pump. The gas-liquid interface is formed directly between a gaseous substance and the treatment solution. A valve arrangement () is attached to the body () and operable to control admission of the gaseous substance and the treatment solution to the pump cavity () so as to reciprocate the gas-liquid interface and thereby pump the treatment solution through the hydraulic manifold (). The cassette is configured to pump the treatment solution without moving parts inside the body ().

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Lund, Sweden

Anton Persson