Gambro Lundia Ab

Karl Henrik Forsland

Roger Nilsson

Björn Ericson

Jonas Fors

Gunilla Andersson

A blood treatment apparatus () defines first and second flow circuits (CC) separated by a dialyzer (). The second flow circuit (C) comprises return and withdrawal lines () for connection to a vascular system of a subject during a treatment session. After the treatment session, a control system causes an operator to connect the second flow circuit (C) to a first port () of a container (), the apparatus () to perform a rinseback procedure, the operator to disconnect the return line () from the vascular system and re-arrange the second flow circuit (C) to define a closed loop, and the apparatus () to draw residual liquid from the closed loop into the first flow circuit (C) through a dialyzer membrane (). To facilitate drainage of the residual fluid with a conventional line set, the second flow circuit (C) is connected to a second port () of the container () to include the container () in the closed loop, or the return and withdrawal lines () are connected in fluid communication with the first port of the container () through a three-way manifold coupling unit.

Emptying a blood circuit after extracorporeal blood treatment

A control system is configured to implement a method of preparing a blood treatment apparatus () for blood treatment. The method comprises installing, by use of a disposable arrangement, first and second flow circuits (C, C) separated by a semi-permeable membrane (), the first flow circuit (C) being connected for fluid communication with the apparatus () and the second flow circuit (C) being connected to form a closed loop that includes a sterilizing filter () and, optionally, a container (). The method further comprises performing backfiltration to transfer a human-compatible fluid from the first flow circuit (C) to the second flow circuit (C) through the semi-permeable membrane (), and circulating () the human-compatible fluid in the closed loop of second flow circuit (C), to thereby sterilize the human-compatible fluid by the sterilizing filter () and, optionally, collect a resulting sterile fluid in the container () for later use.

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Genarp, Sweden

Karl Henrik Forsland