A diffusing capacity of the lung test instrument

Abstract

The present application relates to the technical field of lung function instrument, in particular to a kind of diffusion residual gas lung function tester, including frame and tester body, still including connecting assembly;Connecting assembly includes connecting head, blow nozzle, rotating seat, drive rod, sealed air bag and inflation component, when using, blow nozzle is inserted into connecting head, and then blow nozzle is connected with tester body, then inflation component is inflated to sealed air bag, sealed air bag is inflated, and then the gap between blow nozzle and connecting head is sealed, air leakage is avoided, meanwhile, the stability of blow nozzle on connecting head is improved, at this time, patient can blow blow nozzle, and lung function is detected by tester body;When detection is completed, and blow nozzle needs to be replaced, medical staff rotates rotating seat and drives drive rod to rotate, drive rod moves along the inclined section on drive groove during rotation, and then blow nozzle is ejected, so that blow nozzle falls from connecting head.

Images