Tube coupling for a peristaltic pump

摘要

An infusion pump has a housing ( 10 ) accommodating a pump finger mechanism ( 12 ). The pump finger mechanism ( 12 ) acts on a pump hose ( 13 ) fastened at holders ( 16, 21 ) of the housing. The pump hose ( 13 ) is supported by a door ( 24 ). In order to facilitate proper and positionally correct placement of the pump hose, one of the holders ( 16 ) includes an oblique pin. The associated transition piece ( 15 ) of the pump hose ( 13 ) has a hole ( 18 ) with the same inclination angle as the oblique pin. The other transition piece ( 20 ) is of a different structure so that the transition pieces cannot be mixed up. A longitudinal color strip ( 29 ) on the pump hose is provided to visually indicate any twisting of the hose.