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Jet plasma sterilizing device and sterilizing method

A technology of jet plasma and disinfection device, applied in disinfection, water supply device, sanitary equipment for toilets, etc., to achieve the effect of low toxicity residue

Inactive Publication Date: 2010-01-13
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are no reports at home and abroad on the inactivation of natural bacteria on the surface of medical devices by low-temperature plasma

Method used

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  • Jet plasma sterilizing device and sterilizing method
  • Jet plasma sterilizing device and sterilizing method
  • Jet plasma sterilizing device and sterilizing method

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Experimental program
Comparison scheme
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Embodiment Construction

[0022] Fig. 1 is a schematic diagram of the jet plasma of the present invention used for disinfection of medical instruments.

[0023] A jet plasma disinfection device, comprising a high-voltage power supply 7 grounded at one end, a first metal electrode 1 connected to the high-voltage power supply 7, and a grounded second metal electrode 4; the inner surface of the first metal electrode 1 is covered with a first insulating Medium 2, the inner surface of the second metal electrode 4 is covered with a second insulating medium 5, the first insulating medium 2 is set opposite to the second insulating medium 5 and there is a gap, the end of the gap corresponding to the vessel 3 is a plasma jet port; the gas 6 Enter the gap and shoot from the plasma jet port to the medical equipment contained in the container 3, and the medical device is located 0.5-3cm below the plasma jet port.

[0024] The materials of the first metal electrode 1 and the second metal electrode 4 are copper, stai...

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PUM

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Abstract

The invention discloses a jet plasma sterilizing device which comprises a high-voltage power supply, one end of which is grounded, a first metal electrode connected with the high-voltage power supply, and a second metal electrode which is grounded; a first insulating medium is covered on the inner side surface of the first metal electrode, a second insulating medium is covered on the inner side surface of the second metal electrode; the first insulating medium and the second insulating medium are oppositely arranged with a gap; one end of the gap which is corresponding to a utensil is a plasma jet opening; gas enters into the gap and jet into a medial apparatus put in the utensil by the plasma jet opening; and the medical apparatus is positioned 0.5-3 cm below the plasma jet opening. The method is characterized by low temperature, fast sterilization and low residual toxicity, both suitable for the medical apparatus with damp heat resistance and without damp heat resistance; and simultaneously generated plasma jet has controllability and can be used for the disinfection of the medical apparatus with complex shape.

Description

technical field [0001] The invention belongs to the technical field of gas discharge, and relates to a disinfection method of medical instrument jet plasma. Background technique [0002] With the development of medical and biological high-tech, some medical devices that are not resistant to high temperatures, such as fiberscopes, require low-temperature sterilization technology. Plasma sterilization technology is another new low-temperature sterilization technology following low-temperature sterilization technologies such as formaldehyde, ethylene oxide, and glutaraldehyde in the field of disinfection. Although formaldehyde and ethylene oxide can be used to sterilize heat-labile medical devices, they are limited in scope of use in hospitals due to the disadvantages of more toxic residues, pungent odor, inflammability and explosion. Compared with other sterilization methods, the outstanding features of plasma sterilization technology are low temperature, rapid sterilization,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L2/14
Inventor 张冠军马跃石兴民许桂敏
Owner XI AN JIAOTONG UNIV