Automatic detection start device for starting fume cleaning system

Abstract

The invention discloses an automatic detection starting device used for starting a smog purifying system; the signal input end of the automatic detection starting device is connected with an upper device, while the signal output end of the automatic detection starting device is connected with a lower device. The automatic detection starting device comprises a current transformator, a bridge rectifier circuit, an operational amplifier circuit, a comparison circuit, a delay circuit and a drive circuit; when the current transformator detects current on the upper device, the current can generate voltage by a resistor R1 and is rectified into a DC signal by a bridge rectifier D1; the DC signal passes through the operational amplifier circuit, the comparison circuit, the delay circuit and the drive circuit and then exerts on the lower device, thus realizing that after the upper device stops working for 15 seconds, a signal is output to start the lower device to stop working.

Description

technical field [0001] The invention relates to an automatic detection starting device for starting a smoke purification system. The smog purification system can purify the smog generated by high-frequency electric knife, laser surgical instrument, microwave surgical instrument, etc. in working state. Background technique [0002] A high-frequency electrosurgical device is an electrosurgical instrument that replaces a mechanical scalpel for tissue cutting. It heats and works on the tissue when the high-frequency and high-voltage current generated by the effective electrode tip contacts the human body, thereby realizing the separation and coagulation of the body tissue, thereby achieving the purpose of cutting and hemostasis. [0003] The smoke produced when high-frequency and high-voltage current heats tissues contains strong carcinogens, such as benzopyrene. Studies have shown that when the content of benzopyrene in the space environment increases by 1%, the mortality rate...

AI Technical Summary

Problems solved by technology

[0005] With the existing smoking device, the doctor starts the high-frequency electric knife to work and manually starts the smoke purification system to work at the same time during the operation; after stopping the high-frequency electric knife, he also needs to observe that the smoke is absorbed and then stop the smoke purification system This will disperse part of the doctor's energy on the work of controlling the smoke purification treatment system, or occupy a single medical staff to be responsible for the smoking work. The smoke absorption and treatment during the operation are not timely, and the smoking system is in working condition for a long time, which greatly reduces the service life.

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