KR20100100065A - Apparatus for infectious waste and method for infectious waste - Google Patents

Apparatus for infectious waste and method for infectious waste Download PDF

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Publication number
KR20100100065A
KR20100100065A KR1020090018746A KR20090018746A KR20100100065A KR 20100100065 A KR20100100065 A KR 20100100065A KR 1020090018746 A KR1020090018746 A KR 1020090018746A KR 20090018746 A KR20090018746 A KR 20090018746A KR 20100100065 A KR20100100065 A KR 20100100065A
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KR
South Korea
Prior art keywords
waste
infectious waste
infectious
liquid
wastes
Prior art date
Application number
KR1020090018746A
Other languages
Korean (ko)
Inventor
장태영
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장태영
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 장태영 filed Critical 장태영
Priority to KR1020090018746A priority Critical patent/KR20100100065A/en
Publication of KR20100100065A publication Critical patent/KR20100100065A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/04—Heat
    • A61L2/06—Hot gas
    • A61L2/07—Steam
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/12—Microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/0075—Disposal of medical waste
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Epidemiology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Water Supply & Treatment (AREA)
  • Biotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Biomedical Technology (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

PURPOSE: An apparatus and a method for processing infectious wastes are provided to minimize environmental contamination by transforming the infectious wastes into general wastes using microwaves. CONSTITUTION: A pulverizing unit(10) pulverizes introduced infectious wastes. A drying unit(60) dries the pulverized infectious wastes and divides the wastes into solid wastes and liquid wastes. A vapor spraying unit(20) sprays vapors toward the wastes. A conveyor(30) transfers the wastes. A microwave generator generates microwave with respect to the wastes on the conveyor. A waste storing unit(50) stores the wastes from the conveyor.

Description

Apparatus for Infectious waste and Method for Infectious waste

The present invention relates to an infectious waste treatment apparatus and an infectious waste treatment method capable of safely treating an infectious waste disposed of in a hospital or the like.

In general, wastes generated by medical institutions including hospitals include biological wastes for clinical experiments in hospitals, as well as wastes such as extracts, blood collection ampoules, urine ampoules, injection bottles, syringes, bandages, gauzes, and the like. Special care and treatment should be taken, including infectious bacteria that can infect the human body.

The treatment method of infectious waste generated in such a medical institution usually uses an incineration treatment method in an incinerator like general waste, or a treatment method using steam sterilization grinding.

However, the incineration method consumes a large amount of fuel for incineration, generates harmful compounds containing chlorine and carbon mixtures, and incineration releases environmental pollutants such as chemicals and dust including dioxins and carbon dioxide. Of course, there was a problem that the residual amount of waste generated after incineration had to be treated separately.

In addition, in the case of the treatment method using steam sterilization crushing, not only a large amount of wastewater and chemicals are generated, but also a residual waste is generated, there is a problem that must be treated separately such residual waste.

In order to solve the conventional problems as described above of the present invention, an object of the present invention is an infectious waste treatment apparatus and infectious to enable efficient and safe treatment of infectious waste using microwave (microwave) It is to provide a waste disposal method.

Another object of the present invention is to provide an infectious waste treatment apparatus and an infectious waste treatment method for separating solid wastes and liquid wastes from infectious wastes so that they can be efficiently and safely treated using microwaves, respectively.

An object of the present invention is a crusher is injected into the infectious waste, the crushing the injected infectious waste;

A steam injector for injecting steam into the infectious waste comminuted in the mill;

A conveyor for transporting infectious waste through the steam injector;

A microwave generator for generating microwaves to sterilize infectious wastes transferred to the conveyor by oilfield heating;

It is solved by providing an infectious waste treatment apparatus including a waste storage member for storing infectious waste transferred from the conveyor.

In addition, the object of the present invention is a crushing step of crushing the infectious waste with a crusher;

A steam injection step of injecting steam to the infectious waste which has been subjected to the grinding step;

Removing infectious germs that are sterilized by microwave heating while infecting the infectious wastes passed through the steam injection step to a conveyor;

It is solved by providing an infectious waste treatment method including a general waste treatment step of collecting and transporting infectious waste that has undergone the infectious pathogen removal step as a general waste.

The present invention has the effect of minimizing environmental pollution caused by waste treatment as well as waste treatment by enabling the treatment of infectious waste into general waste using microwave (Microwave). .

In addition, the present invention is to effect the sterilization of germs contained in the infectious waste completely to safely treat the infectious waste.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

1 is a schematic view showing the structure of the present invention, which schematically shows a process in which infectious waste passing through a crusher, a dehydrator and a steam injector is sterilized by microwaves while being transported through a screw conveyor and then loaded onto a truck by a bucket conveyor. .

Figure 2 is a schematic diagram showing an embodiment of the present invention, the liquid infectious waste separated by the dehydrator is a pre-heated by a heater and sterilized while passing through a sterilizer equipped with a microwave generator after sterilization treatment process.

Figure 3 is a block diagram showing the infectious waste treatment method of the present invention, showing a process of separating and treating the solid infectious waste and liquid infectious waste after the dehydration process.

As shown in FIG. 1, infectious waste generated in a hospital and stored in a waste bin is introduced into the grinder 10 of the present invention by an injector.

The grinder 10 is a pair of grinder housing 11 is installed in the grinder housing 11 and the grinder housing 11 is injected into the infectious waste as shown in FIG. The blade 12 of the.

In addition, the pulverizer housing 11 has a hopper portion formed with a discharge port in the lower portion so that the infectious waste crushed through the hopper portion is smoothly guided to the discharge port and discharged.

In addition, the infectious waste that is pulverized while passing between the blades 12 in the crusher housing 11 passes through the steam injector 20 after being discharged.

The steam injector 20 includes a plurality of spray nozzles 21 for injecting steam toward the infectious waste, and injects steam to the infectious waste through the spray nozzle 21 to sterilize the microwaves at a temperature of infectious waste. It is a device that maximizes the sterilization effect by microwaves by raising the temperature to a temperature suitable for exerting and allowing the infectious waste to have moisture that increases efficiency in heating the dielectric.

On the other hand, the present invention preferably further includes a dehydrator 60 connected to the crusher 10 to dehydrate the infectious waste pulverized in the crusher 10 to separate the solid infectious waste and the liquid infectious waste.

Infectious wastes generated in hospitals are classified into solid wastes and liquid wastes. In many cases, liquid wastes remain inside solid wastes, and the liquid wastes remaining in solid wastes have the effect of sterilizing solid infectious wastes by microwaves. Degradation and disposal along with the solid infectious waste had been a problem that is not sterilized by the microwave.

Therefore, the infectious waste crushed by the crusher 10 is separated into solid waste and liquid waste through the dehydrator 60 so that the solid waste passes through the steam injector 20 to form a suitable environment to be sterilized by microwave, and the liquid waste. Silver is drained through the drain pipe 61 is preferably treated separately.

On the other hand, the lower part of the dehydrator 60 is equipped with a spray nozzle 21 of the steam injector 20 therein to inject steam to the solid infectious waste discharged from the dehydrator 60 and then discharged to the conveyor 30. .

In addition, the lower portion of the dehydrator 60 is provided with a hopper having a discharge port to smoothly discharge the solid infectious waste sprayed steam through the hopper to the conveyor (30).

The conveyor 30 includes a tubular pipe housing 31a connected to the dehydrator 60, and a screw 31b coupled to the pipe housing 31a in the longitudinal direction and rotated by a motor 31c. It is based on using the screw conveyor 31.

In addition, although not shown, the conveyor 30 may use a driving roll, a driven roll, and a belt conveyor wound at both ends of the driving roll and the driven roll, and in addition, any conveyor structure capable of smoothly transferring the pulverized solid infectious waste. Also included in the configuration of the present invention.

In addition, the conveyor 30 is equipped with a microwave generator 40 for generating microwaves to sterilize the solid infectious waste transported to the conveyor 30 through dielectric heating.

The microwave generator 40 includes a magnetron 41 for generating microwaves and a waveguide 42 for transmitting microwaves generated from the magnetron 41.

The microwave generator 40 is installed in plural to be spaced apart in the longitudinal direction of the pipe housing 31a to evenly sterilize the solid infectious waste transferred through the screw 31b by dielectric heating.

In addition, since the microwave generator 40 transmits the microwaves to the solid infectious waste through the waveguide 42, the absorption of the reflected wave is prevented, and the internal elements of the magnetron 41 are also protected.

The screw conveyor 31 moves while moving the solid waste to be sterilized solid through the rotation of the screw (31b) so that microwaves penetrate deeply inside the solid waste to sterilize by heating the inside and the outside of the solid waste evenly.

In addition, the optimal heating time for sterilization while transferring the solid waste through the screw conveyor 31 is adjusted according to the amount of solid infectious waste to be treated, and the motor 31c for rotating the screw 31b of the screw conveyor 31. It is possible to control by using a reduction gear 31d or by adjusting the rotational speed of the screw 31b by using an inverter motor as the motor 31c for rotating the screw 31b.

The solid infectious waste sterilized while being transferred through the conveyor 30 is stored in the waste storage member 50 through the conveyor 30 and then treated as general waste.

The solid infectious waste in the waste storage member 50 is loaded on a transport machine such as a truck through the bucket conveyor 51 and transported to a general waste disposal site for disposal.

The present invention preferably further includes a control unit 90 connected to the grinder 10, the dehydrator 60, the steam injector 20, and the conveyor 30 to control each operation.

In addition, the control unit 90 is to be linked to the bucket conveyor 51 to control the overall process.

On the other hand, the present inventors infectious waste treatment apparatus is connected to the drain pipe 61 of the dehydrator 60, as shown in Figure 2 sterilizer 70 for sterilizing by the inflow of liquid infectious waste discharged to the drain pipe (61) It further includes.

The sterilizer 70 is a sterilizer housing 71 formed with a space therein;

A waste conveying pipe 72 connected to the drain pipe 61 of the dehydrator 60 and piped in a zigzag form in a space to flow liquid infectious waste therein;

It includes a microwave generator 40 for generating a microwave into the sterilizer housing 71 to sterilize the liquid infectious waste flowing through the waste transport pipe (72).

The waste conveying pipe 72 is made of a material such as Teflon, PE, glass having a low dielectric constant so as not to be deformed by heating by microwaves.

That is, the liquid infectious waste separated through the dehydrator 60 is sterilized by being dielectrically heated by microwaves generated by the microwave generator 40 while flowing through the waste transfer pipe 72.

In addition, the present invention is connected to the sterilizer 70, the filter 80 for removing the solids of the liquid infectious waste passed through the sterilizer 70 and the reservoir 81 through which the liquid infectious waste passed through the filter 80 is introduced. And an ozone generator 82 for supplying ozone to the reservoir 81 to decompose organic matter in the liquid infectious waste.

That is, the liquid infectious waste that has passed through the sterilizer 70 passes through the filter 80 and is then stored in the storage tank 81 after the solids are removed therein, and the ozone supplied to the ozone generator 82 in the storage tank 81. By decomposing the organic material by the will be able to safely discharge treatment to the outside.

On the other hand, the method of treating the solid infectious waste through the infectious waste treatment apparatus described above is as follows.

As shown in FIG. 3, the infectious waste stored in the waste bin after being used in a hospital is subjected to a crushing step 100 which is introduced into the grinder 10 and crushed by the grinder 10.

The infectious waste that passed through the crushing step 100 is subjected to a waste separation step 500 for separating the solid infectious waste and the liquid infectious waste through the dehydrator 60.

The solid infectious waste separated through the waste separation step 500 passes through the steam injector 20 and passes through the steam injection step 200, and has a suitable environment for the dielectric heating of the microwaves with the injected steam.

After the steam spraying step 200, the solid infectious waste is passed through the conveyor 30, the dielectric heat is heated by the microwave transmitted from the micro-generator, and the infectious germ removal step 300 is sterilized by the oil field heating. .

In addition, the solid infectious waste that has passed through the infectious germ removal step 300 is stored in the waste storage member 50 and is processed through the general waste treatment step 400 which is transported and processed as general waste.

That is, as described above, the solid infectious waste can be safely and easily treated as general waste after being sterilized by microwaves.

In addition, the liquid infectious waste separated through the waste separation step 500 and drained through the drain pipe 61 of the dehydrator 60 passes through the sterilizer 70 provided with the microwave generator 40 and the microwave generator 40. The liquid sterilization step 600 is sterilized by the microwaves transmitted from.

In addition, after the liquid sterilization step 600, a filtration step (700) for removing solids in the liquid infectious waste;

After storing the liquid infectious waste passed through the filtration step 700 into the storage tank 81, the organic material decomposition step 800 is introduced to decompose organic matter by introducing ozone into the storage tank 81.

In other words, the liquid infectious waste is sterilized by microwaves and then purified through a filtration and organic matter decomposition step 800 to be safely discharged to the outside.

As described above, the present invention is to separate the solid infectious waste and liquid infectious waste to be able to safely and efficiently treat waste generated in the hospital by sterilization by microwave.

The present invention is not limited to the above-described embodiments, and various changes can be made without departing from the gist of the present invention, which is understood to be included in the configuration of the present invention.

1 is a schematic diagram showing the structure of the present invention

Figure 2 is a schematic diagram showing an embodiment of the present invention

Figure 3 is a block diagram showing a method for treating infectious waste of the present inventors

* Description of the major symbols in the drawings *

10: grinder 20: steam injector

30: conveyor 40: microwave generator

50: waste storage member 60: dehydrator

70: sterilizer 80: filter

81: reservoir 82: ozone generator

90: control unit

Claims (10)

An infectious waste is injected into the inside, and a grinder for crushing the injected infectious waste; A steam injector for injecting steam into the infectious waste comminuted in the mill; A conveyor for transporting infectious waste through the steam injector; A microwave generator for generating microwaves to sterilize infectious wastes transferred to the conveyor by oilfield heating; Infectious waste treatment apparatus comprising a waste storage member for storing the infectious waste transferred from the conveyor. The method according to claim 1, And a dehydrator connected to the grinder to dehydrate the infectious waste ground in the grinder to separate solid infectious waste and liquid infectious waste. The method according to claim 1, Infectious waste treatment apparatus further comprises a control unit for controlling each operation in connection with each of the crusher, steam injector, conveyor, micro-generator. The method according to claim 1, Infectious waste treatment apparatus further comprises a bucket conveyor for transferring the solid infectious waste in the waste storage member to the outside. The method according to claim 2, Infectious waste treatment apparatus further comprises a sterilizer connected to the drain pipe of the dehydrator to sterilize the liquid infectious waste discharged to the drain pipe. The method according to claim 5, The sterilizer and the sterilizer housing having a space therein; A waste conveying pipe connected to the drain pipe of the dehydrator and having a zigzag-shaped pipe in the space, and flowing liquid infectious waste therein; Infectious waste treatment apparatus comprising a microwave generator for generating a microwave into the sterilizer housing to sterilize the liquid infectious waste flowing through the waste transport pipe. The method according to claim 5 or 6, A filter tank connected to the sterilizer to remove solids of the liquid infectious waste passed through the sterilizer and a storage tank into which the liquid infectious waste passed through the filter is introduced; Infectious waste treatment apparatus further comprises an ozone generator for supplying ozone to the reservoir to decompose organic matter in the liquid infectious waste. A grinding step of grinding the infectious waste into a grinder; A steam injection step of injecting steam to the infectious waste which has been subjected to the grinding step; Removing infectious germs that are sterilized by microwave heating while infecting the infectious wastes passed through the steam injection step to a conveyor; Infectious waste treatment method comprising the general waste treatment step of collecting and infecting the infectious waste that passed through the step of removing the infectious pathogen as a general waste. The method according to claim 8, And a waste separation step of separating the infectious waste that has undergone the grinding step into a solid infectious waste and a liquid infectious waste through a dehydrator. The method according to claim 9, The liquid infectious waste separated through the waste separation step 500 and drained through the drain pipe of the dehydrator 60 passes through the sterilizer 70 provided with the microwave generator 40 while being transmitted from the microwave generator 40. The liquid sterilization step 600 to be sterilized by. In addition, after the liquid sterilization step 600, a filtration step (700) for removing solids in the liquid infectious waste; After storing the liquid infectious waste passed through the filtration step 700 into the storage tank 81, the organic material decomposition step 800 is introduced to decompose organic matter by introducing ozone into the storage tank 81.
KR1020090018746A 2009-03-05 2009-03-05 Apparatus for infectious waste and method for infectious waste KR20100100065A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101293675B1 (en) * 2011-09-27 2013-08-13 (주)천하테크 apparatus for sterilizing and pulverizing infectious waste
CN109692868A (en) * 2019-02-20 2019-04-30 河南方舟医疗器械有限公司 A kind of MEDICAL WASTE TREATMENT device
CN110420722A (en) * 2019-07-31 2019-11-08 崔建霞 A kind of wet refuse processing system
KR102262005B1 (en) * 2020-10-14 2021-06-09 우시혁 Medical waste treatment device
KR20230082085A (en) * 2021-12-01 2023-06-08 주식회사 엠투 conveyor-type medical waste sterilization device using microwaves.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101293675B1 (en) * 2011-09-27 2013-08-13 (주)천하테크 apparatus for sterilizing and pulverizing infectious waste
CN109692868A (en) * 2019-02-20 2019-04-30 河南方舟医疗器械有限公司 A kind of MEDICAL WASTE TREATMENT device
CN110420722A (en) * 2019-07-31 2019-11-08 崔建霞 A kind of wet refuse processing system
KR102262005B1 (en) * 2020-10-14 2021-06-09 우시혁 Medical waste treatment device
KR20230082085A (en) * 2021-12-01 2023-06-08 주식회사 엠투 conveyor-type medical waste sterilization device using microwaves.

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