Device for detecting moisture for a device for monitoring access to a patient, in particular for monitoring the vascular access in the case of extracorporeal blood treatment

摘要

The invention relates to a device (40) for detecting moisture for use in a device (B) for monitoring access to a patient for a device with which a liquid is led to a patient via a hose line and / or discharged from a patient in particular for monitoring vascular access in an extracorporeal blood treatment in which a patient's blood is discharged from the patient via an arterial tubing 5 having an arterial puncture cannula 6, and via a venous tubing 7 having a venous puncture cannula 8 Patient is returned. The device according to the invention for detecting moisture is designed as a cover 22 to be placed on the skin of the patient of a flexible material with an upper side 22A facing away from the patient's skin and an underside 22B facing the patient's skin. The cover (pad) has a recess 23 for the passage of liquid, in particular blood, and a moisture sensor 28 with contact elements 28D, 28E for connecting the same. The humidity sensor 28 may detect blood that passes through the recess 23 to the surface of the pad 22. The device according to the invention is characterized in that the cover 22 is not permeable to liquid at the bottom 22A.