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Medical mask gas exchange pressure difference testing device

A gas exchange and testing device technology, applied in the field of medical supplies inspection, can solve the problems of inability to directly test, increase workload, and inconvenient testing work, and achieve the effects of improving convenience, prolonging service life, and reducing cost and energy consumption

Pending Publication Date: 2022-04-05
山东省医疗器械和药品包装检验研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the clamping device adopts a nested structure, and the mask needs special sample preparation, which cannot be tested directly, which greatly increases the workload and brings great inconvenience to the test work.

Method used

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  • Medical mask gas exchange pressure difference testing device
  • Medical mask gas exchange pressure difference testing device
  • Medical mask gas exchange pressure difference testing device

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Embodiment Construction

[0038] The technical solutions of the present invention will be described below in conjunction with the drawings, which is apparent from the accompanying drawings.

[0039] Components of the embodiments of the present invention generally described and shown herein can be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the invention in the drawings is not intended to limit the scope of the invention claims, but only the selected embodiments of the present invention are shown.

[0040] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art are in the range of the present invention without making creative labor premise.

[0041] In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "within", "outside", etc. The orientation or positional relationship i...

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Abstract

The invention discloses a medical mask gas exchange pressure difference testing device, and belongs to the technical field of medical supply inspection, the medical mask gas exchange pressure difference testing device structurally comprises a sample clamping mechanism and a detection assembly, the sample clamping mechanism comprises an upper pipe barrel and a lower pipe barrel which are in butt joint with each other, the lower pipe barrel is fixed, and the upper pipe barrel can move up and down under the driving of a crank connecting rod mechanism; the detection assembly comprises a pressure transmitter, a mass flow meter, a mass flow controller and the like, the pressure transmitter can measure upstream and downstream gas pressure signals, and the display of a test result can be realized by arranging a PLC (Programmable Logic Controller), an extension module of the PLC and a touch screen. The method is suitable for detecting medical masks with different thicknesses, does not need to additionally cut mask samples, reduces operation steps and detection cost, and is simple and convenient to operate.

Description

Technical field [0001] The present invention relates to the field of medical supplies testing techniques, and in particular, a medical mask gas exchange pressure difference test device. Background technique [0002] Medical masks are generally used in cases in medical outpatients, laboratories, operating rooms, etc., wearing health care workers, the safety factor is relatively high, for bacteria, and viruses are strong. Medical protective masks are suitable for medical staff and related staff to protect airborne respiratory infectious diseases, high protection levels; medical surgery masks are suitable for medical staff or related personnel's basic protection, and prevent blood during the creation process, Protection of body fluid and spatant propagation. Therefore, the medical mask gas exchange pressure difference is an important indicator for judging whether the mask is qualified and the protection level. [0003] In the prior art, the tested portable gas exchange pressure is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01L13/00B25B11/00
Inventor 林则晨姚秀军张庆孙建军李帆杜付鑫
Owner 山东省医疗器械和药品包装检验研究院
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