Novel graded gas filtering device

Abstract

The invention discloses a novel graded gas filtering device and belongs to the technical fields of medical equipment and health care. The novel graded gas filtering device comprises a shell part and a filtering part; the shell part comprises an upper cover and a lower shell. The upper shell and the lower shell are in firm and sealed connection; the filtering part is used for filtering by grades according to the sizes of object particles in gas and is mounted and fixed on a convex ring of the upper cover. The upper cover is mainly combined with the filtering part, so that the aim of fixing components of the filtering part is realized, and the filtering part and the upper cover have very good firmness and sealing property after being mounted; the shell part is mainly used for protecting the filtering part and risk of damaging the filtering part is avoided. The novel graded gas filtering device disclosed by the invention can be used for filtering gas discharged in a laparoscopic surgery and a surgery environment of a medical establishment is effectively protected from pollution, so that the physical and psychological health of medical personnel and patients is guaranteed; meanwhile, the novel graded gas filtering device has the advantages of simple structure, convenience for operation, high gas filtering efficiency, safety and cleanliness and the like.

Description

technical field [0001] The present invention relates to a novel graded gas filter device, more specifically, relates to a novel graded gas filter device, which is used in medical operations to filter waste gas discharged from the abdominal cavity of patients and to filter harmful molecular particulate matter, thereby protecting the clean operating environment and The physical and mental health of medical care patients. Background technique [0002] With the development of medical technology, electrosurgical equipment, laser knife, ultrasonic scalpel and other tools are widely used in surgery, which makes modern medical work more convenient and effective. health risks. Surgical smoke not only hinders the sight of surgical personnel, but also releases toxic and harmful substances into the air. May cause headaches, eye and mucous membrane irritation among operating room personnel. [0003] Surgical smoke refers to gaseous substances produced during surgery, also known as aer...

AI Technical Summary

Problems solved by technology

The application uses sequentially arranged activated carbon fibers and HEPA filters to filter surgical exhaust gas, which has a good filtering effect. The filter sheet cannot be fully utilized. It is well known that the smaller the filter material, the finer the filter pores of the filter medium (filter membrane), and the filter medium is inversely proportional to the resistance to gas during filtration. The larger the required filter medium area, the lower the filter medium precision, and the smaller the required filter medium area

Therefore, China Patent No. ZL201310122035.8 is a disposable waste gas filter for laparoscopic surgery. If the product is converted, it is not only difficult to realize, but also causes waste of adsorption and filter materials, resulting in large gas flow resistance, affecting the exhaust gas discharge speed, and thus affecting the operation time. exhaust requirements

Images