DISPOSABLE EXTRACORPOREAL CIRCULATION AND EXTRACORPOREAL BLOOD TREATMENT APPARATUS Russian patent published in 2012 - IPC A61M1/36 

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine. A cartridge unit comprises a rigid body, a first flexible tube with its first and second ends attached to the rigid body forming a loop part wherein there is a hose pump rotor of a medical device with the first end of the first flexible tube connected to an outlet of a first chamber, a second flexible tube with its first end connected to an inlet of a first chamber, a third flexible tube with its first end attached to the rigid body and being in a liquid connection with a second end of the first tube. A rigid tubular part comprises first and second terminal connector and an intermediate portion passing between the connectors contacting with a fluid medium flowing through the intermediate portion for the purpose of measuring a fluid medium parameter. The first terminal connector is attached to one element chosen from a group consisting of: the second end of the second flexible tube, and the second end of the third flexible tube. The connectors have an external prismatic surface having radially projecting element coupled with a connective socket on a holder of the apparatus. There are disclosed versions of the cartridge unit, the rigid tubular part and a medical apparatus applying them.

EFFECT: reliable and reproducible measurement of blood parameters.

30 cl, 20 dwg