ES252962U - An apparatus to exercise the respiratory function and to measure the pulmonary capacity (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

An apparatus for exercising respiratory function and measuring lung capacity, which comprises a bellows enclosure defining a closed chamber of variable volume and having first and second end plates, arranged along an axial line through the chamber, said bellows enclosure being expandable and recoverable in a plane parallel to said axial line between an initial position in which it is expanded and a secondary position in which it is recovered; a conduit passing through the enclosure and having a first end in free communication with said chamber, and a second end open outside the enclosure, with which the air within the expanded enclosed chamber can be evacuated; a mouthpiece or nozzle assembly with a t-air flow control, connected to the second open end of the conduit and intended to be received by a human oral orifice; a support frame for mounting the bellows enclosure so that it is expandable and recoverable in said plane; means for mounting the bellows enclosure in the support frame, whereby the bellows enclosure is in use the exercise apparatus, but movable to the recovered position secondary to evacuation of air from the interior of the chamber, through said device. Duct and nozzle assembly when operating the apparatus for exercising; means for holding the first end plate in a fixed position relative to the frame; and indicia arranged on the frame to measure the variable distance between the end plates during expansion and recovery of the bellows enclosure, said measurement being effected by indicator indicia correlated with the variable volume of the chamber. (Machine-translation by Google Translate, not legally binding)