CN213031368U

CN213031368U - Plasma medical instrument disinfection and sterilization device

Info

Publication number: CN213031368U
Application number: CN202020208213.4U
Authority: CN
Inventors: 刘琦; 吴征威
Original assignee: University of Science and Technology of China USTC
Current assignee: University of Science and Technology of China USTC
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2021-04-23
Anticipated expiration: 2030-02-25

Abstract

The utility model discloses a plasma medical instrument disinfection and isolation device, device include high-pressure system, air compressor machine and disinfection room, set up array electrode in the disinfection room, the air compressor machine lets in gas discharge district with gas compression to appointed density, array electrode in the gas discharge district meets with high-pressure system, the long 50cm of disinfection room, wide 30cm, high 40cm, the upper side is plasma generating device in the disinfection room, the shelf of placing when the below is the medical instrument disinfection, the shelf material is the stainless steel. The utility model discloses a plasma technique is disinfected medical instrument, through active material and the strong electric field effect in the plasma, exterminates the microorganism on the medical instrument, realizes the disinfection purpose of disinfecting.

Description

Plasma medical instrument disinfection and sterilization device

Technical Field

The utility model relates to a plasma disinfection technical field, concretely relates to plasma medical instrument disinfection and sterilization device.

Background

The medical instruments refer to various instruments used in the medical field, including various instruments used for clinical diagnosis and treatment, various instruments used for medical tests and clinical examinations. The disinfection and sterilization of medical instruments is one of the key means for preventing and controlling nosocomial infection and ensuring the medical quality. It can be said that there is no excellent medical instrument disinfection and sterilization technology, so that there is no development of modern surgical technology, and it can not ensure the implementation of various invasive diagnosis and treatment technologies, and the modern medicine can not obtain so brilliant achievement.

The condition of incomplete disinfection and sterilization is particularly prominent in the current pressure steam sterilization mode, and the main reason is caused by the disinfection and sterilization mode. In the disinfection process, the phenomenon that high temperature is incomplete to disinfect germs sometimes occurs. The high temperature also causes the incomplete cleaning and the solidification of residual protein, so that the adhesion of pollutants is firmer and the like. In addition, as modern medical instruments develop rapidly, some instruments made of new materials are not suitable for temperature-sensitive sterilization technology, such as high-precision fiberscopes, artificial organs and implants in vivo are not high-temperature resistant. Therefore, the development of new sterilization methods is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plasma disinfection and sterilization device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a plasma medical instrument disinfection and sterilization device comprises a high-pressure system, an air compressor and a disinfection chamber. The array electrodes are arranged in the disinfection chamber, instruments to be disinfected are placed in the disinfection chamber when the disinfection chamber is used, the air compressor is started to compress air to a specified density and then the air is introduced into the discharge area, and the array electrodes in the discharge area are connected with the high-voltage system. The compressed air is broken down to become plasma when the voltage between the electrodes reaches corresponding value. The pressure of the formed plasma is higher than the atmospheric pressure, and the plasma can be blown into the disinfection chamber through the air port to disinfect the medical instrument. The sterilized gas is discharged through the exhaust port, so that the pressure inside and outside the device is balanced.

Furthermore, the length of the disinfection chamber is 50cm, the width is 30cm, the height is 40cm, a plasma generating device is arranged at the upper part in the disinfection chamber, a rack arranged during the disinfection of medical instruments is arranged at the lower part in the disinfection chamber, and the rack is made of stainless steel.

Furthermore, the diameter of the electrodes is 1mm, the length of the electrodes is 10mm, and the distance between the electrodes is 5 mm.

Furthermore, the high voltage of the power supply of the plasma generating device is 10kV-15kV, and the frequency is 13.56 MHz.

Furthermore, the discharge area is 20cm long, 20cm wide and 10cm high, and the discharge area is provided with an air inlet which is connected with an 8 x 5mm air pipe.

The utility model has the advantages of the prior art:

(1) the plasma generating device adopts arc discharge to generate plasma, and the generated plasma can reach higher density. Compared with the traditional disinfection and sterilization machine, the disinfection and sterilization device has better disinfection and sterilization effects. Greatly improving the treatment effect and efficiency of the medical apparatus.

(2) The voltage of the plasma generating device is adjustable, and the plasma generated by increasing the voltage also has higher macroscopic temperature and high-temperature disinfection and sterilization effects on high-temperature-resistant medical instruments. And for some objects to be treated which are not high temperature resistant, the temperature can be adjusted to be low, so that the plasma is in a low temperature state, and the plasma has better disinfection and sterilization effects. Compare traditional high temperature pressure steam sterilization, the utility model discloses have wider scope on probation, satisfy medical personnel's requirement basically.

(3) The traditional pressure steam sterilization environment contains a large amount of moisture, and some medical metal instruments are in a high-temperature humid environment and are inevitably corroded after being prolonged. The corrosion condition can obviously reduce the service life of the medical appliance and reduce the effective use times of the medical appliance. The plasma used for disinfection of the utility model is dry, which can avoid accelerating the metal corrosion.

(4) The plasma is composed of various charged particles including electrons, ions, reactive radicals, and the like. The metal medical appliance is in the environment of the high-energy charged particles, and a thin oxide film can be generated on the surface of the metal. The oxide film can wrap metal to protect the metal inside from being corroded, and meanwhile, the oxide film also has good physical and chemical properties and prolongs the service life of instruments.

(5) In the disinfection process of the device, due to the special structure, the metal instrument to be disinfected can also be used as a ground electrode, and the generated current can directly pass through the instrument, so that the residual bacteria and viruses can be further killed. Compared with the similar products, has more excellent disinfection and sterilization effects.

Drawings

FIG. 1 is a front view of the plasma sterilizer of the present invention;

FIG. 2 is a top view of the plasma sterilizer of the present invention;

FIG. 3 is a left side view of the plasma sterilizer of the present invention;

FIG. 4 is a schematic diagram of the structure of the array electrode of the plasma sterilizer of the present invention;

fig. 5 is a block diagram of the operation flow of the plasma sterilizer of the present invention.

In the figure: the plasma treatment device comprises a gas discharge area 1, a high-voltage device 2, an upper plasma generation array electrode 3, a lower plasma generation array electrode 4, a metal frame 5, a vent hole 6, a disinfection area 7, an air inlet area 8, an exhaust hole 9 and an electrode plate 10.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

The utility model discloses plasma disinfection and isolation device is shown in figure 1, including placing the metal frame 5 of treating the medical instrument that disinfects, high tension unit 2, the array electrode 3 that the upper plasma produced and the array electrode 4, the gas discharge district 1, the disinfection district 7 that the lower plasma produced, intake zone 8, exhaust hole 9 constitute. The upper plasma-generating array electrode 3 and the lower plasma-generating array electrode 4 are cylindrical electrodes.

The practical operation process is that the medical apparatus needing disinfection and sterilization is placed on the metal frame 5, the cabin door is closed, the magnetic strip can be installed at the joint of the cabin door, and the outer surface of the cabin door is wrapped by the rubber product, so that a better airtight effect is realized. The compressed gas with the pressure not less than 0.5Mpa enters the gas discharge area 1 from the gas inlet area 8, the voltage range of the high-voltage power supply is 10Kv-15Kv, and the frequency is 13.56 MHz. The array electrodes are of a metal plate circular hole inner sleeve cylindrical structure and are made of tungsten-copper alloy, the distance between the cylindrical array electrodes is 10mm, the array electrodes 3 generated by the upper plasma and the array electrodes 4 generated by the lower plasma which are opposite are connected with the positive electrode and the negative electrode of high voltage at a distance of 5mm, and the electrode plate 10 is grounded and is a ground electrode. Plasma generated by high-voltage discharge is blown out from the vent hole 6 to the disinfection chamber to realize disinfection treatment on medical instruments. The outer side of the device is provided with a timing system, and the processing time can be manually set. After the processing time is finished, the plasma generating device stops working, the array electrode 3 generated by the upper plasma and the array electrode 4 generated by the lower plasma stop discharging, and meanwhile, the exhaust hole 9 is completely opened to exhaust gas, so that the air pressure inside and outside the device is balanced. The sterilizing chamber is internally provided with an air pressure measuring device, when the air pressure is overlarge, the device gives an alarm and forces the plasma generating device to stop working so as to ensure that the equipment is not damaged and the safety of operators is ensured. After the disinfection is finished, the hatch door is opened, and the disinfected medical instrument can be taken out for later related work.

The utility model has the advantages that: the plasma technology is adopted to sterilize medical instruments, the compressed gas is punctured through high voltage to generate plasma, and active substances such as electrons and ions in the plasma react with bacteria and viruses remained on the medical instruments after cleaning to kill microorganisms, so that the sterilization effect is realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The foregoing is only the preferred embodiment of the present invention, and the present invention is not limited thereto, and any modifications, variations, equivalent replacements and improvements without paying the creative work to the above embodiments by the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A plasma medical instrument disinfection and sterilization device is characterized in that: comprises a high-voltage system, an air compressor and a disinfection chamber, wherein the disinfection chamber is internally provided with array electrodes, the air compressor compresses gas to specified density and then leads the gas into a gas discharge area, the array electrodes in the gas discharge area are connected with the high-voltage system,

the length of the disinfection chamber is 50cm, the width of the disinfection chamber is 30cm, the height of the disinfection chamber is 40cm, a plasma generating device is arranged above the disinfection chamber, a frame placed during disinfection of medical instruments is arranged below the disinfection chamber, and the frame is made of stainless steel;

the diameter of the electrodes in the array electrodes is 1mm, the length of the electrodes is 10mm, and the distance between the electrodes is 5 mm;

the high voltage of the power supply of the plasma generating device is 10kV-15kV, and the frequency is 13.56 MHz;

the gas discharge area (1) is 20cm long, 20cm wide and 10cm high, the gas discharge area (1) is provided with a gas inlet (8), and the gas inlet (9) is connected with a gas pipe with 8 x 5 mm.