A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 1/14 (2006.01) A61M 1/30 (2006.01) A61M 1/36 (2006.01)
Patent
CA 2354913
A blood treatment device, in particular a dialysis machine, which permits both single-needle and dual--needle operation, has a blood treatment unit, in particular a dialyzer 1, whose inlet is connected to a feed line 5 and whose outlet is connected to a return line 6. The feed line 5 has two parallel line branches 10, 11, with a first positive displacement pump 12 being connected into the first line branch and a second positive displacement pump 13 being connected into the second line branch 11. To produce a fluid connection between the outlet of the dialyzer 1 and one of the two pumps 13, a connection line 18 is provided. For dual--needle operation, the feed and return lines are connected to an arterial and a venous needle 32, 33, while for single-needle operation, the feed and return lines are brought together and connected to a common needle 9. The connection line 18 permits single-needle operation without great changes to the structure of the blood treatment device.
Beden Josef
Hahmann Uwe
Herklotz Martin
Lauer Martin
Manke Joachim
Fetherstonhaugh & Co.
Fresenius Medical Care Deutschland Gmbh
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