The invention relates to a medical treatment apparatus comprising a tube assembly 20, a peristaltic pump 6 for fluid transport and a monitoring apparatus 15 for monitoring the occlusion of the positive displacement elements 13a, 13b of the peristaltic pump. furthermore, the invention relates to a tube assembly 20 for a medical treatment apparatus, and a method for monitoring occlusion of the occlusion elements of a peristaltic pump to transport fluid to a medical treatment apparatus. The invention is based on the fact that the occlusion of the positive displacement elements 13a, 13b of the peristaltic pump 6 is monitored for the purpose of monitoring the fluid flow in the hose line 5. To this end, the electrical resistance or a corresponding variable The electrical resistance is measured between a first and a second electrode 16a, 16b, the first electrode 16a being disposed on the hose line 5 upstream of the occlusion elements 12 of the peristaltic pump 6 and the second electrode 16b being disposed on the hose line a downstream of the occlusion elements so that an electrical contact is created between the first and second electrodes 16a, 16b and the fluid flowing in the hose line 5. electrodes 16a, 16b are preferably integral component parts of a connecting piece 10, whereby the hose segment 5a to be inserted into the peristaltic pump 6 is fixed in the form of a loop. (Fig. 2)a invenção se refere a um aparelho de tratamento médico compreendendo um conjunto de tubo 20, uma bomba peristáltica 6 para transportar fluido e um aparelho de monitoramento 15 para monitorar a oclusão dos elementos de deslocamento positivo 13a, 13b da bomba peristáltica. além disso, a invenção se refere a um conjunto de tubo 20 para um aparelho de tratamento médico, e a um método para monitorar a oclusão dos elementos de oclusão de uma bomba peristáltica para transportar um fluido para um aparelho de tratamento médico. a invenção se baseia no fato de que a oclusão dos elementos de deslocamento
