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Sterilization method and sterilization device

A sterilizing device and a sterilizing room technology, which is applied to water supply devices, sanitary equipment for toilets, buildings, etc., and can solve problems such as incomplete gasification of sterilizing agents, sterilizing agent residues, and corrosion

Active Publication Date: 2018-10-23
SHINVA MEDICAL INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a large amount of sterilant is injected into the sterilization chamber at once, all the sterilant is not completely vaporized, and a part of the ungasified sterilant remains in the sterilization chamber, which may cause corrosion

Method used

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  • Sterilization method and sterilization device
  • Sterilization method and sterilization device
  • Sterilization method and sterilization device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0172] 20 test pieces were housed in a sterilizing chamber and carried out Figure 8 Sterilization treatment indicated. The difference between this sterilization treatment and the sterilization treatment of Test 1 lies in the injection process of the peracetic acid preparation. Here, 6 ml of the peracetic acid preparation was injected three times. Other conditions are the same as those of the comparative example.

Embodiment 2

[0174] 20 sterilized objects were housed in the sterilized room and carried out Figure 9 Sterilization treatment indicated. The difference between this sterilization treatment and the sterilization treatment of Test 1 lies in the injection process of the peracetic acid preparation. Here, 6 ml of the peracetic acid preparation was injected six times. Other conditions are the same as those of the comparative example.

[0175] After each test, it was taken out from the sterilized sterilization chamber, and it was confirmed whether bacteria remained in the biological index.

[0176] (2) Test results

[0177] The number of test pieces with bacteria remaining was "1" in the comparative example, and "0" in Examples 1 and 2.

[0178] (3) Evaluation

[0179] As shown in the test results, it was confirmed that the sterilization efficiency is better by injecting the sterilizing agent divided into a plurality of parts than injecting a large amount of the sterilizing agent into the st...

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Abstract

The invention provides a sterilization method and a sterilization device. The sterilization device includes: a sterilization chamber; a vaporization chamber; a wall for separating the vaporization chamber into a first room and a second room; a first passage for connecting the first room with the second room; a workbench arranged in the first room; a nozzle arranged towards the workbench and spraying a sterilizing agent towards the workbench; a liquid storage part for storing the liquid component of the sterilizing agent sprayed towards the workbench; a second passage for connecting the secondroom with the sterilization chamber; and a unit for reducing the pressure of the sterilization chamber and reducing the first room and the second room by the first passage and the second passage, wherein the first passage is formed by a belt-shaped gap having a small thickness and a wide width.

Description

technical field [0001] The invention relates to a sterilization method and a sterilization device. Background technique [0002] Conventionally, in order to sterilize medical instruments, dry heat sterilization and high-pressure steam sterilization have been used. These sterilization methods are heat treatment of medical equipment in a relatively high temperature environment. However, with the diversification of medical devices, some medical devices using materials that cannot withstand high temperatures have increased, and new sterilization methods are required for such medical devices. In addition, medical equipment having long and thin hollow tubes such as endoscopes needs to be completely sterilized up to the end of the hollow tube. [0003] As a sterilization method capable of meeting such demands, it has been proposed to inject a sterilization agent into a decompressed environment to generate a sterilizing gas, and to use this sterilizing gas to sterilize an object t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L2/22A61L2/26A61L2/20A61L101/22A61L101/36
CPCA61L2/20A61L2/208A61L2/22A61L2/26A61L2202/122A61L2202/15A61L2202/24A61L2202/11A61L2/186A61L2202/14A61L2202/123A61L2/10
Inventor 安乐大辉板良敷朝将张海军屈国强杨敏
Owner SHINVA MEDICAL INSTR CO LTD