DEVICE AND METHOD FOR MONITORING ACCESS TO A PATIENT, IN PARTICULAR ACCESS TO VESSELS DURING EXTRACORPOREAL BLOOD TREATMENT
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Abstract
The invention relates to a device and to a method for monitoring access to vessels during extracorporeal blood treatment. The invention forms a loop in the arterial and/or venous line and provides device for fixing a section of the line in a loop. When the line is stressed under tension, the loop contracts and the line finally kinks. The modification of the diameter of the line and the formation of a kink in the line leads to a rise of pressure in the line, which is monitored by a pressure monitoring device. If the pressure exceeds a predetermined threshold value, the aspirating cannula is in danger of slipping out of the vessel access or has partially or completely slipped out, thus allowing the threshold value to be determined for alarms.
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Citations
32 Claims
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1-17. -17. (canceled)
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18. A device for monitoring vascular access in extracorporeal blood treatment comprising:
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a first fixing element capable of tightly receiving a first segment of a hose line, a second fixing element capable of loosely receiving a second segment of a hose line, whereby the first fixing element and the second fixing element are adapted to form a loop in a hose line between the first segment and the second segment. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification