Patent ID: 9610395
Date: 2017-04-04
CPC Classifications: A61M,F16K

Claim:
1. A device for reversing blood flow, for an extra-corporeal blood treating apparatus which comprises an extra-corporeal blood circuit which has an arterial blood line outgoing from a patient which runs to a blood treating unit and a venous blood line outgoing from the blood treating unit which runs to the patient, the device for reversing flow comprising: a first valve-action body having a first patient-side connection for a first patient-side portion, formed of flexible tubing, of the blood line and a second patient-side connection for a second patient-side portion, formed of flexible tubing, of the blood line; a second valve-action body having a first apparatus-side connection for a first apparatus-side portion, formed of flexible tubing, of the blood line and a second apparatus-side connection for a second apparatus-side portion, formed of flexible tubing, of the blood line, the first and second valve-action bodies being rotatable with respect to each other on an axis in such a way that, a communications arrangement configured to receive a high-frequency electromagnetic field from a reading arrangement belonging to the extra-corporeal blood treating apparatus and to generate at least one code which is characteristic of one of the first and second relative positions of the valve-action bodies and which is readable by the reading arrangement, a detection arrangement configured to detect the first and second relative positions of the valve-action bodies and to co-operate with the RFID transponder in such a way that, in the first relative position, the code characteristic of the first relative position is readable by the reading arrangement and, in the second relative position, the code characteristic of the second position is readable by the reading arrangement.