Vital capacity test device and use method thereof

Abstract

The invention provides a vital capacity test device, which is characterized by comprising a holding handle and a cylindrical compression plastic film, wherein the holding handle is used for being heldby the hand; the cylindrical compression plastic film is provided with a volume scale; the air inlet end of the holding handle is provided with an air blowing opening; a funnel-shaped air inlet cavity is formed in the holding handle; a self-sticking plastic closing film used for sealing an air outlet of the air inlet cavity is arranged at the tail end of the air inlet cavity; an opening at the front end of the cylindrical compression plastic film is connected with the air outlet end of the holding handle; a hard base used for reading vital capacity data is arranged at the inner side of the bottom of the cylindrical compression plastic film, so that the air can favorably push the hard base to drive the cylindrical compression plastic film to be backwards unfolded to form a cylindrical shape during the test; an air outlet plug pin matched with an air outlet of the air inlet cavity is arranged in the middle part of the upper surface of the hard base. The vital capacity test device has the advantages that the structure is simple; the operation is convenient and fast; the cost is low; the goal of using one vital capacity test device by one person can be achieved.

Description

technical field [0001] The invention relates to the field of sports equipment, in particular to a lung capacity testing device and a use method thereof. Background technique [0002] A summary of the technical research and development of related spirometry: the early methods of testing spirometry were basically based on the principle of "drainage method or air discharge method" when insufflation, and some spirometry invented by the latest research is still based on the above principle Based on the technology of adding electronic sensors, for example: the utility model patent CN201727513U "simple spirometer" of Lu Xuchen et al.; the invention publication number CN107007283A "a lung capacity measuring device" of Zhang Xingang et al.; the invention patent CN104739415B "U-shaped communication device" of Xiao Hongqing et al. Device type lung capacity and lung power confrontation tester"; Yin Hua et al.'s invention patent CN204562164U "A Simple Bucket Type Spirometry Tester" and o...

AI Technical Summary

Problems solved by technology

And the vital capacity testing instrument has been greatly improved and convenient from the early water tank type tester to the electronic sensor type handheld tester, but due to limitations such as the expensive tester, in the actual testing process, most It is to share one instrument, using a simple sterilized mouthpiece or a paper funnel per person as a gasket to blow air in turn. This test condition has the risk of cross-infection of germs and public health safety hazards.

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