JP2001061908A - Harmless treater for medical waste - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harmless treater for medical waste which can shorten warking time which is required to treat medical waste. SOLUTION: There are provided a heating sterilization part 3 of which medical waste M in a backet part 1 is sterilized with heating and a waste treating part 4 which forms the medical waste M which is sterilized with heating into a cake-shape of a moving direction D of a fixed position of a conveyer part 2 to carry plural backet parts 1 of which medical waste M is thrown and stored in order to a fixed direction D. In addition, there is provided a discharging part 5 to discharge cake-shaped medical waste M from the backet part 1 at the waste treating part 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment device for detoxifying medical waste, and more particularly to a treatment device for solidifying medical waste into a cake by heating and compressing the waste into a cake.

[0002]

2. Description of the Related Art Conventionally, as a treatment technique of medical waste generated in a medical institution or the like, a heat melting method, a crushed chemical solution sterilization method, and the like are known. Here, as the heating and melting method, there is a method in which waste is heated and melted, sterilized, and then cooled and solidified to be treated as a cake (lump), or a method in which the lump is pulverized and treated as a crushed material. .

[0003] In the case of the above-mentioned heating and melting method, if a sharp projection such as an injection needle is contained in the waste, when the plastic waste which has been heated and melted is cooled and solidified, the projection is externally formed. Exposure involves danger in handling.
In addition, there is a problem that the handling efficiency is poor because the plastic waste having low fluidity remains bulky even after being melted and solidified. Besides, when crushing the cake solidified by cooling,
There was a danger that the worker would be injured by protrusions such as injection needles exposed from the cake.

[0004] In the crushed drug solution sterilization method, medical waste is pulverized and then immersed in a sterilizing drug solution or sprayed with a drug solution to form a fine tube or tube such as an injection needle in the medical waste. It sterilizes harmful pathogens and the like contained in the remaining liquid. However, in this case,
In order to completely sterilize harmful pathogens, it is necessary to completely mix or replace the residual liquid in the injection needle with the sterilizing drug solution. Cannot be sterilized. Furthermore, after the treatment, sharp projections are exposed as described above, and there is the same danger as described above during handling.

Therefore, the present inventors compress the medical waste while heating it, squeeze out the residual liquid in the waste to the outside, and cover the outside such as sharp projections with the molten and flowable thermoplastic waste. By cooling and solidifying to make a cake and discharging the waste in the state of the cake, a medical waste detoxification treatment apparatus which has solved the above-mentioned problem has been proposed (Japanese Patent No. 2891791).

[0006]

By the way, in the above-mentioned apparatus, since the above-mentioned pre-pressurization, heating and main pressurization, and cake discharge are performed in one processing section, the number of steps in the processing section is reduced. In many cases, the work time in the processing unit required to complete the process is long. For this reason, there was a problem that it was difficult to shorten the working time.

It is an object of the present inventors to provide a waste disposal apparatus capable of reducing the time required for treating medical waste.

[0008]

That is, a medical waste detoxification apparatus according to a first aspect of the present invention includes a plurality of bucket sections for storing medical waste and a stepwise movement of the plurality of bucket sections in a predetermined direction. A conveyor section for transferring while rotating, a heat sterilization section for heat sterilizing the medical waste stored in the bucket section, and the heat-sterilized medical device at a position after the heat sterilization section in the predetermined direction. A waste treatment section that compresses and heats the waste into a cake form, and the cake-like medical waste heated and compressed by the waste treatment section at the same position as the waste treatment section. Characterized by having a discharge section for discharging from the container.

In a preferred embodiment, the bucket section has an opening in a direction perpendicular to the predetermined direction, and the discharge section is configured to transfer the cake-like medical waste in a direction perpendicular to a transfer direction of the conveyor section. And an extruding member for extruding through the opening. Further, in a preferred embodiment, the waste treatment section includes a compression section that heats and compresses the medical waste in the bucket section, a heating and melting section that heats and melts the medical waste, and a medical waste when the heating and compression is performed. And a drainage passage for discharging residual liquid from the object.
In a further preferred embodiment, the bucket section containing the heat-sterilized medical waste is accurately positioned by a positioning means provided in the waste processing section, and then the medical waste is compressed while being heated and the cake is heated. It is characterized by being in a state.

A medical waste detoxification apparatus according to a second aspect of the present invention includes a plurality of buckets for storing medical waste,
A conveyor section for transferring the bucket section while rotating the bucket section in a predetermined direction, a heat sterilization section provided on the conveyor section for heat sterilization of the medical waste stored in the bucket section, Waste in the direction after the heat sterilization section, and after accurately positioning the bucket section containing the medical waste by the positioning means, compressing the medical waste while heating it to form a cake. A treatment unit, and a discharge unit that is disposed at a position after the waste treatment unit in the predetermined direction and that discharges the cake-like medical waste from the bucket unit.

In a preferred embodiment, the bucket section has an opening in a direction perpendicular to the predetermined direction, and the discharge section is configured to transfer the cake-like medical waste in a direction perpendicular to a transfer direction of the conveyor section. And an extruding member that extrudes through the opening and is discharged from the opening. In a preferred embodiment, the waste treatment section includes a compression section for heating and compressing the medical waste in the bucket section, a heating and melting section for heating and melting the medical waste, A drain for discharging residual liquid from waste.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described with reference to the drawings. FIGS. 1 to 3 show an apparatus for detoxifying medical waste according to a first embodiment of the present invention. It is. Here, FIG. 1 is a perspective view of a main part of the detoxification processing apparatus, and FIG. 2 is a top view of the same main part. FIG. 3 is a perspective view for reference for explaining the configuration of a bucket unit and a conveyor unit which constitute this detoxification processing apparatus.

The medical waste detoxifying apparatus includes a bucket 1 for receiving and storing medical waste M, and a conveyor 2 for transferring the bucket 1 in a predetermined direction D.
And a heat sterilizing unit 3 for heat sterilizing the medical waste M accommodated in the bucket unit 1 and a waste processing unit 4 for heating and compressing the heat sterilized medical waste M into a cake. And a discharge unit 5 for discharging cake-shaped medical waste M to the outside. In addition, medical waste M
More specifically, for example, plastic products such as syringes, drip infusion containers, infusion tubes, and petri dishes made of various thermoplastic resins, metal injection needles, and the like.

The plurality of buckets 1 are connected or arranged in a predetermined direction D. Each bucket portion 1 has a U-shaped cross section, and has openings 11 and 12 formed on both sides in a direction orthogonal or perpendicular to the predetermined direction D. In the illustrated example, the bucket portion 1 is connected to the bottom plate portion 13 in the predetermined direction D.
And a pair of side plate portions 14 and 15 opposed to each other.

Here, in the illustrated example, the width (length) of the bottom plate portion 13 is made larger than the side plate portions 14 and 15 in a direction perpendicular or perpendicular to the predetermined direction D. Further, in order to facilitate rotation when the bucket 1 moves from the upper side to the lower side or from the lower side to the upper side at both ends of the conveyor section 2, the bucket section 1 has an L-shaped cross section in a predetermined direction D. First member 1A and second member 1
B. According to this configuration, when these members are positioned at the upper and lower portions of the conveyor unit 2 and are joined to each other to form the above-described U-shape, and when these members are positioned at both end portions of the conveyor unit 2, Can be bent at the abutting portion of the. And by this bendable structure, the transport of the bucket portion 1 at both end portions of the conveyor portion 2 by the conveyor portion 2 can be easily performed.

The conveyor section 2 includes a pair of parallel base frames 21,
21 and a frame 22 on which these base frames 21 are fixedly held.
And an endless band 26 to which a plurality of bucket portions 1 are fixed at predetermined intervals. For the endless belt 26, a chain, a belt, or the like can be used. The rotation of the endless belt 26 is not continuous rotation but intermittent rotation, that is, step rotation. The distance traveled by the endless belt during this step rotation is the same as the length (width) of the bucket 1 in the predetermined direction D, that is, the interval between adjacent buckets 1.

Further, side plates 6 are provided at both ends of the conveyor portion 2, respectively. Openings 11, 12 provided on both sides of the basket portion 1 while rotating between the respective side plates 6 are rotated by the side plates 6. It will be in a closed state. In addition, the side plate 6
In the upper part of the conveyor section 2, the section from the point of introduction of the medical waste M to the position in front of the waste processing section 4, that is, the heat sterilization section 3 is provided.

The heat sterilizing section 3 is provided at a position before the waste processing section 4 in the predetermined direction D, that is, at a stage preceding the waste processing section 4. Then, a microwave irradiation device 31 positioned above the conveyor unit, and electromagnetic wave shielding units 32 provided on the lower surface, left and right surfaces, front and rear surfaces, etc. of the heat sterilizing unit 3 for preventing electromagnetic wave leakage, respectively.
It is composed of The heat sterilization unit 3 is a waste treatment unit 4
In the pre-process of the treatment, the medical waste M accommodated in the bucket unit 1 is heated by microwaves, and the residual liquid existing in the tube or the fine tube such as the injection needle contained in the medical waste M is removed. The harmful pathogenic bacteria in the residual liquid are sterilized by heating the water at a high temperature.

The heat sterilizing section 3 is provided just before the waste processing section 4, that is, the medical waste stored in the bucket section 1 immediately before the bucket section 1 on which the heating and compressing processing is performed by the waste processing section 4. M is provided at the position where heat sterilization is performed,
It is not limited to this. In addition, the heat generated by the microwave heating in the heat sterilization unit 3 serves as preheating, and the preheating heats the plastics and the like in the medical waste M to a certain degree of softening.

Here, if the heat sterilizing section 3 is provided immediately before the waste processing section 4, the medical waste M is preheated by the heat sterilizing section 3 and softened. Can be sent. In this configuration example, the compression of the medical waste M in the waste processing section 4 can be performed in the softened state, and as a result, there is an advantage that the heat compression processing in the waste processing section 4 can be efficiently performed in a short time. .

The waste processing section 4 includes a compression section 41 for compressing the medical waste M stored in the bucket section 1, a heating and melting section 42 for heating and melting the medical waste, and the like. ing. The compression section 41 is mounted on the hydraulic cylinder 411, the processing cylinder 413, and a drive shaft of the hydraulic cylinder 411, and is configured by a piston (not shown) provided inside the processing cylinder 413 so as to be vertically movable. I have.

The heating and melting section 42 includes heaters (not shown) provided on the lower surface of the piston, the inner bottom surface of the processing cylinder 413, and the like, and a power supply (not shown) for energizing and heating these heaters. Have been. Here, the heat compression processing in the waste processing section 4 is performed in a state where the bucket section 1 is positioned with respect to the processing cylinder 413.

The discharge section 5 is provided in a predetermined direction D, which is the transfer direction of the conveyor section 2, that is, at the same position as the waste processing section 4, in a state where it is juxtaposed with the waste processing section 4. In the illustrated example, the discharging unit 5 is a waste processing unit 4.
2 is provided on the upper side in FIG. The discharge section 5 includes a pushing member 51, a hydraulic piston 52 for driving, that is, pressing and moving the pushing member 51, and the like.

Here, the processing cylinder 4 of the waste processing section 4
13 is provided with an opening (not shown) through which an extruding member 51 composed of a scraper passes in FIG.
Similarly, on the lower side, an opening / closing lid 415 for discharging the medical waste M to the outside, and a hatch portion including a hydraulic piston 416 for opening and closing the opening / closing lid 415 are provided. The medical waste M formed into a cake by heating and melting in the waste processing unit 4 lifts the opening / closing lid 415 upward by the operation of the hydraulic piston 416 and opens it, and is pushed out by the pushing member 51 to be hatched. Are discharged from

Next, the operation of the embodiment having the above configuration will be described. First, the medical waste M to be treated is put into the bucket unit 1 on the conveyor unit 2 and stored. The medical waste M is put into the bucket portion 1 in a state of being stored in a synthetic resin bag (not shown) having a predetermined size or capacity, for example, but is not limited thereto. . The stored medical waste M intermittently advances in the predetermined direction D by the incremental rotation of the endless belt 26 of the conveyor unit 2. First, at the position of the heat sterilizing section 3, moisture such as residual liquid in the medical waste M is heated at a high temperature by microwave heating to perform a sterilization process.

Next, the heat-sterilized medical waste M is
The stepwise rotation of the endless belt 26 advances to the processing position of the next-stage waste disposal section 4. Then, in the waste disposal section 4, the medical waste M is compressed by the compression section 41,
It is heated by the heating and melting unit 42. The heating is, for example, 1
The process is performed up to about 50 to 180 ° C. By this heating and compression treatment, the volume of the medical waste M is reduced, and the thermoplastic resin constituting the medical waste M is melted and welded to form a cake.

In this case, even if the medical waste M contains a sharp non-melting substance such as an injection needle, the thermoplastic component melts and flows to cover the sharp substance from the outside. Accordingly, the cake-shaped medical waste M has no danger because the sharp substance does not protrude from the surface even when cooled and solidified, and the medical staff can work safely. The cake-shaped medical waste M thus formed is then discharged to the outside of the bucket unit 1 by the pushing member 51 driven by the hydraulic piston 52 and collected.

Here, the heat sterilization treatment of the medical waste M in the heat sterilization section 3 and the waste treatment section 4 and the discharge section 5
The heating and compression of the medical waste M and the discharge treatment of the cake-like medical waste M in the above are preferably performed simultaneously or in parallel. That is, the heat sterilization processing of the medical waste M in the heat sterilization unit 3 is performed simultaneously with the heat melting processing and the discharge processing of the medical waste M that has been stored in the subsequent bucket unit 1 and that has been previously heat sterilized. Targets, that is, in parallel.

When the processing is performed in parallel in this manner, for example, the operation of the heat sterilizing section 3 and the operation of the heating compression section 5 and the discharge section 5 are automatically operated by sequence control.
It can be easily realized. In the case of a single worker, the worker only puts his hand on the case where the processing object is put into the bucket section, and the operation of each processing section can be performed substantially in parallel, that is, substantially simultaneously. it can.

In the above, the waste treatment section 4 and the discharge section 5 are connected to one.
Although the above example is used, a plurality of these may be arranged along the predetermined direction D. According to this configuration example, the heating, compression and discharge processing of the medical waste M stored in the plurality of bucket units can be performed simultaneously, that is, in parallel, so that the processing time or working time required for the entire processing can be further reduced. Can be. In this configuration example, a plurality of heat sterilizers 3 may be provided as needed.

Next, a medical waste detoxifying apparatus according to a second embodiment of the present invention will be described with reference to FIGS. This medical waste detoxifying apparatus includes a bucket unit 1, a conveyor unit 2, a heat sterilization unit 3, a waste treatment unit 4,
It comprises a discharge unit 5 and the like. The heat sterilization unit 3, the waste disposal unit 4, and the discharge unit 5 are provided at predetermined positions in a predetermined direction D of the conveyor unit 2 in order. Note that the bucket unit 1, the conveyor unit 2, the heat sterilizing unit 3 and the like have substantially the same configuration as that of the above-described first embodiment, and therefore, in the following description, the first embodiment will be described. Only different parts will be described.

The conveyor section 2 has a base frame 21, a frame 22 on which the base frame 21 is fixedly held, and a drive wheel, which is supported by one end of the base frame 21 and is composed of gears and sprockets, is mounted on both ends. Drive shaft 23, a motor 24 with a speed reducer connected to one end of the drive shaft 23, a driven shaft 25, which is supported on the other end of the base frame 21, is composed of gears, sprockets, etc., and is mounted on both ends. And an endless belt 26 provided between the drive shaft 23 and the driven shaft 25 and formed by a chain or a belt. And
A plurality of buckets 1 are fixed on the endless belt 26 at predetermined intervals. The fixing is performed, for example, by screwing each bucket portion 1 to a predetermined position of the endless band 26.

In the illustrated example, the side plate 6 is connected to the conveyor section 2.
Is provided from the point of input of the medical waste M to the front of the waste disposal unit 4 in the upper part of
The side plate 6 is provided on the entire upper part of the conveyor unit 2 and the opening 1
A notch having the same size as the width of each of the first and second buckets 1 and 12 is provided. When the endless belt 26 rotates in the conveyor section 2 and stops, the bucket section is aligned with the openings 11 and 12. 1 may be used.

The waste processing section 4 includes a compression section 41 composed of a hydraulic cylinder or the like for compressing the waste M stored in the bucket section 1 from above, and a heating and melting section for heating and melting medical waste. A drainage passage 43 for discharging the residual liquid discharged from the medical waste M at the time of heating and compression by the part 42 and the compression part 41, and positioning means for positioning the bucket part 1, such as a positioning member 44, etc. It is configured. Note that the positioning means including the same drainage path 43, positioning member 44, and the like may be provided in the first embodiment.

The compression section 41 includes a hydraulic cylinder 411 provided above the waste processing section 4 and the hydraulic cylinder 411.
And a bracket 412 having the bracket 41 attached thereto.
2 includes a processing cylinder 413 attached to a lower portion of the processing cylinder 2, a piston 414 provided in the processing cylinder 413, and the like.

The heating / melting section 42 includes a heater plate 42 provided below the piston 414 via an insulating plate 421.
2. It comprises a heater plate 423 and the like provided below the processing cylinder 413 via the bottom plate 13. When the bucket unit 1 is positioned in the waste processing unit 4, the heater plates 422 and 423 press the medical waste M through the bottom plate 13 while heating.

Here, the heating and compression processing in the waste processing section 4 is performed by accurately positioning the bucket section 1 with respect to the waste processing section 4, more specifically, the processing cylinder 413 by positioning means including a positioning member 44 or the like. It is performed in the state where it has been positioned. In this state, inside the processing cylinder 413, the side plates 14 and 15 constituting the bucket 1 are arranged. In this state, since the width (length) of the side plate portions 14 and 15 in the direction perpendicular to or perpendicular to the predetermined direction D is smaller than the inner diameter of the processing cylinder 413, the inner surface of the processing cylinder 413 and the side plate portions 14 and 15 are formed. A gap is formed between the outer surface and the outer surface.

On the other hand, the bottom plate portion 13 of the bucket portion 1 is located between the processing cylinder 413 and the heater plate 423, particularly with reference to FIG. Both ends of the bottom plate 13 extend to the endless belt 26 of the conveyor unit 2 beyond the processing cylinder 413, and are attached to the endless belt 26 with bolts or the like. Further, a gap is formed between both ends of the bottom plate 13 and the processing cylinder 413.

The drainage passage 43 is formed by a gap formed between the processing cylinder 413 and the bucket 1, specifically, the gap between the processing cylinder 413 and both ends of the bottom plate 13 and the processing cylinder. 413 and the side plate portions 14 and 15. When the medical waste M is compressed by the compression unit 41, moisture such as residual liquid pushed out from the medical waste M passes through these gaps to the bucket unit 1.
Are discharged to the outside of the waste disposal unit 4 from the openings 11 and 12 of the waste disposal unit 4.

The water such as residual liquid discharged through the drainage passage 43 as described above then reaches the endless bands 26 attached to both ends of the bottom plate portion 13, and together with the endless bands 26, the endless bands 26 It flows in the traveling direction of the band 26, that is, the predetermined direction D. Finally, water such as residual liquid flows into a receiving tray (not shown) provided on the frame 22 or the like, for example, and is collected.

Here, in the heat sterilization section 3 preceding the waste treatment section 4, since the residual liquid has been sterilized by heating by microwave heating, it is harmless to the extent that the residual liquid does not violate the drainage standard. And can be drained as it is. Therefore, it is not necessary to perform the work of heating and evaporating the water such as the residual liquid for sterilization as in the related art.

Next, the positioning means will be described. For example, the positioning means, such as the positioning member 44,
For correctly positioning the bucket unit 1 transferred to the waste processing unit 4 with the positioning member 44.
Is composed of a pair of hydraulic cylinders provided on both sides of the processing cylinder 413, for example. The hydraulic cylinder has a piston rod that protrudes when activated. Here, holes 44 are provided at positions corresponding to the piston rods of the bucket portions 1 and on both sides of the processing cylinder 413.
The bucket part 1 can be accurately positioned by fitting a positioning means, for example, a piston rod of a hydraulic cylinder constituting the positioning member 44, into the hole 44a. As another positioning means, accurate positioning may be performed by a pulse like a servomotor.

By the positioning by the positioning member 44, the bucket portion 1 is fixed to the processing cylinder 413. Therefore, the positioning member 44 is disposed in the waste disposal section 4.
It also functions to prevent the deformation of the bucket portion 1 at the time of compression. The position may be accurately determined by a position detection member (not shown) such as a limit switch or a photoelectric tube switch for detecting the position of the bucket unit 1 or the number of pulses of the pulse motor.

The discharge section 5 is provided at a position after the waste processing section 4 in the predetermined direction D, that is, at a subsequent stage.
The discharge unit 5 includes a pushing member 51 as a tapered member whose thickness gradually decreases toward a tip end thereof, and a pushing member 51.
, And a hydraulic piston 52 for pressing and moving in the direction of the tip.

The medical waste M formed into a cake by heating and melting in the waste treatment section 4 at the preceding stage is pushed out from one of the openings 11 into the extrusion member 51 at the position of the discharge section 5.
Is pushed and pushed out of the other opening 12 to the outside of the bucket 1 to be discharged.

The pushing member 51 advances while scratching the bottom portion 13 of the bucket portion 1 during pushing. for that reason,
Medical waste M by heating and melting in waste treatment section 4
Can be easily taken out even if is welded to the bottom portion 13. If the discharge unit 5 is mounted on a cart or the like, there is an advantage that the discharge unit 5 can be easily moved to a required position.

The operation of the second embodiment is as follows.
The medical waste M thrown into and stored in the bucket unit 1 intermittently advances in the predetermined direction D by the stepwise rotation of the endless belt 26, and first undergoes heat sterilization processing by microwave heating in the heat sterilization unit 3.

Next, the heat-sterilized medical waste M is
The stepwise rotation of the endless belt 26 advances to the processing position of the next-stage waste disposal section 4. In the waste processing unit 4, after the bucket unit 1 containing the medical waste M is positioned by positioning means such as the positioning members 44 provided on the processing cylinder 413, the bucket unit 1 is operated by the operation of the processing cylinder 413. At the same time as the piston 414 is pressed downward and compressed, the heater plate 422 provided on the piston 414 and the heater plate 423 on the bottom plate 13 are simultaneously pressed.
Thus, the medical waste M is heated and compressed from above and below. By this heating and compression treatment, the medical waste M is reduced in volume and fused to form a cake by melting of the thermoplastic resin in the medical waste M.

The cake-like medical waste M thus formed advances to the processing position of the discharge section 5 at the next stage by the stepwise rotation of the endless belt 26. At the position of this discharge unit 5,
The cake-like medical waste M stored in the bucket 1 is
Extrusion member 51 driven by operation of hydraulic piston 52
Is discharged to the outside of the bucket portion 1 and is appropriately collected.

Here, heat sterilization in the heat sterilization section 3
Further, the heat compression processing in the waste processing section 4 and the discharge processing in the discharge section 5 are performed in parallel. That is, the discharge process in the discharge unit 5 is performed by heating and compressing the medical waste M stored in the subsequent bucket unit 1 in the waste processing unit 4 and storing the medical waste M in the further downstream bucket unit 1 in the heat sterilization unit 3. The heat sterilization of the medical waste M is sequentially performed in parallel.

In order to perform the above-described parallel or simultaneous processing, operations such as heat sterilization, heat compression, and discharge are actually completely automated. That is, the processing in each of the processing units (the heat sterilization unit 3, the heat compression unit 4, and the discharge unit 5) is automatically performed. In this case, even one worker can be performed substantially in parallel, that is, substantially simultaneously, by sequentially operating the above-described processing units because it is completely automated.

The waste disposal section 4 is not limited to one place. For example, a configuration in which a plurality of waste disposal units 4 are arranged along the direction D may be adopted, whereby the medical waste M stored in the plurality of bucket units can be heated and compressed in parallel. The processing time or work time required for the above processing can be further reduced. In this configuration example, a plurality of components other than the waste disposal unit 4, for example, the heat sterilization unit 3 and the discharge unit 5 can be provided as necessary.

Further, the movement of the conveyor unit 1 by the step rotation and the heating and compression processing in the waste treatment unit 4 may be performed by, for example, an operator in parallel, but the present invention is not limited to this. For example, the transfer of the bucket unit 1 by the incremental rotation of the conveyor unit 2, the heat sterilization process of the medical waste M in the bucket unit 1 in the heat sterilization unit 3, the heat compression process of the medical waste M in the waste treatment unit 4, The discharge of the cake-shaped medical waste M in the discharge part 5 may be automatically performed in parallel.

In this configuration example, for example, a control unit using a computer for performing required control based on a control program is provided. The control unit controls the timing and time of energization of the motor 24 of the conveyor unit 2, the timing and time of microwave irradiation by the microwave irradiation device 31 in the heat sterilization unit 3, the operation timing of the hydraulic cylinder in the positioning means, The configuration may be such that the operation timing of the hydraulic cylinder 411 and the energization timing and the energization time of the heater plates 422 and 423 in the waste disposal section 4 and the operation timing of the hydraulic piston in the discharge section 5 are appropriately controlled.

Further, during the heating and compression in the waste treatment section 4, the medical waste M may emit an unusual odor due to the vaporization of the residual liquid. For this reason, it is also possible to provide a deodorizing section above the waste processing section 4 to remove this kind of unusual odor.

Although the positioning means is not shown in the drawings showing the embodiment according to the first invention, for example, it is the same as that shown in FIGS. 6 and 7 showing the embodiment according to the second invention. A configuration and the like are provided.

[0057]

The medical waste detoxifying apparatus according to the first aspect of the present invention has a configuration in which heat sterilization and heat compression for the detoxification of medical waste are performed simultaneously or in parallel. In addition, the working time required for treating medical waste can be greatly reduced. Also, a heating compression unit for heating compression processing,
Since the discharge unit for discharging cake-shaped medical waste is provided at the same position in the transfer direction of the bucket unit,
The length of the bucket portion or the conveyor portion required for the entire processing can be reduced by that much, and the entire apparatus can be made compact.

In the medical waste detoxifying apparatus according to the second aspect of the present invention, a heat sterilization process, a heat compression process, and a discharge process for detoxifying medical waste are performed simultaneously or in parallel. Therefore, the work time required for treating medical waste can be further reduced.

Furthermore, in this medical waste detoxification apparatus, cake-like medical waste is discharged in a direction perpendicular to the direction of transport of the bucket by the conveyor.
It is easy to take out the discharged medical waste.

Further, in the medical waste detoxifying apparatus, the residual liquid discharged from the medical waste during the compression in the waste processing section can be discharged simultaneously with the compression.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a medical waste detoxification processing apparatus according to a first embodiment of the present invention.

FIG. 2 is a top view illustrating a main part of the detoxification processing apparatus according to the first embodiment of the present invention.

FIG. 3 is a perspective view for reference for explaining the configuration of a bucket unit and a conveyor unit of the detoxification processing apparatus of FIG. 1;

FIG. 4 is an explanatory diagram of a medical waste detoxification processing apparatus according to a second embodiment of the present invention as viewed from the front.

FIG. 5 is an explanatory view of the detoxification processing apparatus of FIG. 4 as viewed from above.

FIG. 6 is an explanatory view of the detoxification processing apparatus of FIG. 4 as viewed from the right side.

FIG. 7 is an enlarged view of a main part of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bucket part 2 Conveyor part 3 Heat sterilization part 4 Waste treatment part 5 Discharge part 11 Opening part 12 Opening part 26 Endless band 41 Compression part 42 Heat melting part 43 Drainage path 51 Extruded member M Medical waste

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E023 AA14 AA19 LA10 3E025 AA07 CA05 CA13 DC01 DD01 4C341 LL13 LL16 LL22 4D004 AA48 CA03 CA22 CA29 CB15 CB33 CB43 CB46 CB50 DA02 DA12

Claims (7)

[Claims] 1. A plurality of buckets (1) for accommodating medical waste (M); a conveyor (2) for transferring the plurality of buckets while rotating the buckets in a predetermined direction; A heat sterilization unit (3) for heat-sterilizing the medical waste stored in 1), and a heat-sterilized medical waste (M) at a position after the heat sterilization unit (3) in the predetermined direction. A waste treatment unit (4) that is heated and compressed to form a cake; and the cake-shaped medical device that is heated and compressed by the waste treatment unit (4) at the same position as the waste treatment unit (4). An apparatus for detoxifying medical waste, comprising a discharge section (5) for discharging waste (M) from the bucket section (1). 2. The bucket part (1) has openings (11) and (12) in a direction perpendicular to the predetermined direction, and the discharge part (5) is provided with the cake-like medical waste ( The medical waste detoxification apparatus according to claim 1, further comprising an extruding member (51) for extruding M) in a direction perpendicular to the transport direction of the conveyor unit and discharging the extruded material from the opening. 3. A compression section (4) for heating and compressing the medical waste (M) in the bucket section.
1), a heating / melting section (42) for heating and melting the medical waste, and a drainage path (43) for discharging residual liquid from the medical waste during the heating and compression. The medical waste detoxification processing apparatus according to claim 1 or 2, wherein: 4. The heat-sterilized medical waste device (M).
After accurately positioning the bucket (1) accommodating the medical waste (M) by the positioning means provided in the waste disposal section, the medical waste (M) is compressed into a cake while being heated. The medical waste detoxifying apparatus according to any one of claims 1 to 3. 5. A plurality of buckets (1) for accommodating the medical waste (M), a conveyor (2) for transferring the bucket while rotating the bucket in a predetermined direction, and a bucket (1). A) a heat sterilizing section (3) provided on the conveyor section for heat sterilizing the medical waste stored in the conveyor, at a position after the heat sterilizing section (3) in the predetermined direction, and After the bucket part (1) provided on the part (2) and containing the medical waste is accurately positioned by the positioning means, the medical waste (M) is compressed into a cake by heating while being heated. A waste processing unit (4), and a discharge unit (5) that is located at a position after the waste processing unit (4) in the predetermined direction and that discharges the cake-like medical waste (M) from the bucket unit. Harmless medical waste characterized by having Processing apparatus. 6. The bucket part (1) has openings (11) and (12) in a direction perpendicular to the predetermined direction, and the discharge part (5) is provided with the cake-like medical waste ( The medical waste detoxification apparatus according to claim 5, further comprising: an extruding member (51) for extruding M) in a direction perpendicular to a transport direction of the conveyor unit and discharging the extruded material from the opening. 7. A compression section (41) for heating and compressing the medical waste (M) in the bucket section (1), wherein the waste processing section (4) heats and melts the medical waste. And a drainage passage (43) for discharging residual liquid from the medical waste during the heating and compression. Medical waste detoxification equipment.