Method and device for quickly desorbing ethylene oxide

An ethylene oxide, rapid technology, applied in the field of medical devices, can solve problems such as long analysis time, excessive ethylene oxide residue, toxicity, etc., and achieve the effect of safe and reliable operation, low investment cost, and simple device structure

Inactive Publication Date: 2016-11-23
NATONG HORCO N MEDICAL TECH CO LTD
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Problems solved by technology

[0003] Ethylene oxide has a high-efficiency sterilizing effect, but it is also very toxic. During the ethylene oxide sterilization process, it involves the problem of the residual amount of ethylene oxide in the product. How to quickly eliminate the ethylene oxide The purpose of ethylene oxide decomposing from the surface of the product is the most common way to analyze it under natural ventilation under atmospheric conditions. The phenomenon of long and incomplete analysis occurs, resulting in prolonged product turnaround time and excessive ethylene oxide residues.

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  • Method and device for quickly desorbing ethylene oxide
  • Method and device for quickly desorbing ethylene oxide
  • Method and device for quickly desorbing ethylene oxide

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Embodiment Construction

[0013] exist figure 1 In the system, the temperature of the hot air circulation system of the system is 15-80 ° C, and the method of indirect heating is used to increase the temperature of the system, and the waste gas is absorbed by dilute acid solution or water, so as to achieve qualified discharge.

[0014] Take the product out of the sterilizer and transfer it to the analysis cabinet, first open the blind plate (13), adjust the three-way valve to the exhaust position, and exhaust at room temperature for 30-60 minutes to remove high-concentration ethylene oxide gas. Then seal the blind plate, adjust the three-way valve to the circulation position, turn on the vacuum pump to pre-vacuumize for 1-2 hours, close the vacuum valve, open the gas cylinder to inflate the system, wait until the system is at normal pressure, and set the temperature controller. Temperature, turn on the circulation fan and electric heating switch in turn for circulation heating, turn off the electric h...

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Abstract

The invention discloses a method and device for quickly desorbing ethylene oxide. An indirect heating method is adopted, the temperature is controlled to be 15 DEG C to 80 DEG C, and cylic heating and vacuumizing on inert gas in the device are alternately conducted. The device is mainly formed by connecting a desorbing cabinet, a heater, a heat conduction pipe, a circulating fan, a temperature measuring controller, a three-way valve and an exhaust gas treatment device through pipelines; work of the heater is controlled by the temperature controller and linked with work of the circulating fan, a gas distributor is installed in the desorbing cabinet, desorbed gas is treated by the exhaust gas treatment device and then exhausted, and therefore the purpose of quickly and safely desorbing ethylene oxide is achieved.

Description

Technical field [0001] The invention relates to a rapid analysis method and device for ethylene oxide sterilization in the field of medical instruments. Background technique [0002] At present, the sterilization methods in the field of medical devices include steam high temperature sterilization, ethylene oxide sterilization, C 60 Radiation sterilization and electronic radiation sterilization, gas fumigation and disinfection of thermally unstable medicines and surgical medical equipment, etc., and ethylene oxide sterilization is also the most commonly used sterilization method in the medical device industry. [0003] Ethylene oxide has a high-efficiency sterilizing effect, but it is also very toxic. During the ethylene oxide sterilization process, it involves the problem of the residual amount of ethylene oxide in the product. How to quickly eliminate the ethylene oxide The purpose of ethylene oxide decomposing from the surface of the product is the most common way to anal...

Claims

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Application Information

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IPC IPC(8): A61L2/26A61L2/20
Inventor 徐佩
Owner NATONG HORCO N MEDICAL TECH CO LTD
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