Device for treating medical waste through pulsating vacuum high-temperature steam

Abstract

The utility model relates to the technical field of medical waste treatment, in particular to a device for treating medical waste by pulsating vacuum high-temperature steam, which solves the problems that the pressure in a vacuum chamber is recovered to normal pressure and the temperature is recovered to normal temperature when the treated medical waste is taken out in the prior art, and comprises a device body, a vacuum sterilization cavity and a feeding cavity which are communicated with each other are arranged in the device body, a partition plate is arranged between the vacuum sterilization cavity and the feeding cavity, a feeding door is arranged at a feeding port of the feeding cavity, the partition plate and the feeding door are opened alternately, and the device body is provided with an automatic trolley used for containing medical waste. The vacuum sterilization device has the beneficial effects that only air in the feeding cavity enters the vacuum sterilization cavity in the process of feeding medical wastes into the vacuum sterilization cavity or taking the medical wastes out of the vacuum sterilization cavity, and the pressure and the temperature in the vacuum sterilization cavity are slightly changed, so that the pressure and the temperature required by sterilization in the vacuum sterilization cavity can be reached in a short time; and the vacuumizing and heating time is effectively shortened, and the treatment efficiency of the medical waste is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical waste treatment, in particular to a device for treating medical waste using pulsating vacuum high-temperature steam. Background Art

[0002] Existing medical waste disinfection equipment has disadvantages such as high energy consumption, susceptibility to infection by pathogens, and poor heat penetration when treating waste. This results in unstable medical waste disinfection results and inconvenient maintenance. Current medical waste disinfection equipment mainly includes pulsating vacuum sterilizers. However, these also have shortcomings:

[0003] Pulsating vacuum sterilizers: Sterilizers are typically single-layer, double-layer pressure vessels, primarily consisting of a sterilization chamber and a vacuum pump. The vacuum pump utilizes at least two steam ejectors connected in series, with the ejector nozzles connected to the low-pressure steam pipes used by the sterilization chamber. Pulsating vacuum sterilizers utilize saturated steam as the sterilization medium. By exploiting the physical properties of steam, which releases large amounts of latent heat and humidity when condensed, the sterilized items are kept in a high-temperature, moist state. After a set constant temperature period, the protein, the primary component of bacteria, coagulates and kills them. Currently, traditional medical waste must be manually removed and cleaned after treatment, which is quite cumbersome.

[0004] Patent number CN208710594U discloses a system for treating medical waste using pulsating vacuum high-temperature steam. The system includes a conveyor track, a sterilizer, and a transport cart. The transport cart is mounted on the conveyor track. The conveyor track comprises, from its starting point to its end point, a movable track, a first fixed track, and a second fixed track. The first fixed track is disposed within the sterilizer, the second fixed track is disposed at the sterilizer's exit, and the movable track is disposed at the sterilizer's entrance. The movable track includes a connection end that can be aligned with the first fixed track. This system for treating medical waste uses the conveyor track and transport cart to transport medical waste from the sterilizer to a pulverizer, accelerating waste handling and improving treatment efficiency. However, to remove treated medical waste, the sterilizer must be fully opened. This allows the pressure in the sterilizer chamber to return to normal, and high-temperature steam to escape. This requires re-evacuation and re-introduction of high-temperature steam for the next medical waste treatment. This takes a long time to reach the required pressure and temperature, impacting efficiency. Utility Model Content

[0005] The utility model provides a device for treating medical waste with pulsating vacuum high-temperature steam, which solves the problem in the prior art that the pressure and temperature in the vacuum chamber return to normal pressure and temperature when the treated medical waste is taken out.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] A device for treating medical waste with pulsating vacuum high-temperature steam comprises a device body, which includes a vacuum sterilization chamber and a feed chamber interconnected within the device body. A partition is provided between the vacuum sterilization chamber and the feed chamber, and a feed door is provided at the feed inlet of the feed chamber. The partition and the feed door open alternately. The device body is also provided with an automatic trolley for holding medical waste. When performing vacuum high-temperature steam treatment on medical waste, the medical waste is first placed on the automatic trolley in the feed chamber, the feed door is closed, and then the partition is opened. The automatic trolley then transports the medical waste to the vacuum sterilization chamber. At this time, only the air in the feed chamber enters the vacuum sterilization chamber, resulting in smaller pressure and temperature changes within the vacuum sterilization chamber. The required pressure and temperature for sterilization can be reached in a shorter time, effectively shortening the time required for vacuuming and heating, thereby improving the efficiency of medical waste treatment.

[0008] The device body is provided with a storage chamber for accommodating the partition. The storage chamber is connected to the feed chamber and corresponds to the partition. A partition drive mechanism is provided within the storage chamber and is connected to the partition. The partition drive mechanism drives the partition to move, allowing the partition to extend into the feed chamber to block the vacuum sterilization chamber or to retract into the storage chamber to open the vacuum sterilization chamber. The partition drive mechanism is a motor that drives the partition through a rack and pinion transmission mechanism.

[0009] A positioning strip is provided at the entrance of the vacuum sterilization chamber. The positioning strip is in contact with the partition, and a first sealing structure is provided between the positioning strip and the partition. The first sealing structure ensures the seal between the partition and the positioning strip, thereby ensuring the seal of the vacuum sterilization chamber when the partition seals the vacuum sterilization chamber. The first sealing structure is a sealing strip.

[0010] A guide rail is installed within the device's main body, running through the vacuum sterilization chamber and the feed chamber. The automatic trolley is mated to the rail. A clearance groove is provided on the rail, which mates with the end of the partition. The rail guides the automatic trolley, ensuring smooth reciprocating movement between the feed chamber and the vacuum sterilization chamber. Furthermore, the clearance groove effectively prevents interference with the movement of the partition, maintaining full contact between the partition and the positioning strip at the bottom.

[0011] One side of the avoidance groove is provided with an inclined surface, and the end of the partition is provided with an inclined platform. The inclined surface cooperates with the inclined platform. When the partition moves downward, the inclined surface exerts a lateral force on the inclined platform, pushing the partition to fit tightly with the positioning strip, thereby improving the sealing between the partition and the positioning strip.

[0012] The device body is provided with a feed door drive mechanism connected to the feed door. The feed door drive mechanism drives the feed door up and down to open or close the feed chamber. The feed door drive mechanism is a motor that drives the feed door through a gear rack transmission mechanism.

[0013] The feed port is provided with a positioning groove, and a second sealing structure is provided between the feed door and the positioning groove. The second sealing structure ensures the sealing between the feed door and the positioning groove, thereby ensuring that when the partition is opened, no excessive air enters the vacuum sterilization chamber.

[0014] A heat preservation chamber is provided outside the vacuum sterilization chamber, which can reduce the temperature loss in the vacuum sterilization chamber, ensure the temperature environment of the entire sterilization, and improve the sterilization effect.

[0015] The top of the vacuum sterilization chamber is provided with a vacuum tube and a gas charging tube, and the bottom of the vacuum sterilization chamber is provided with a steam exhaust pipe. The vacuum tube is connected to a vacuum pump, and the gas charging tube is connected to a steam generator. The vacuum tube, through the vacuum pump, can evacuate the gas in the vacuum sterilization chamber, placing the vacuum sterilization chamber in a negative pressure state. The gas charging tube, through the steam generator, can fill the vacuum sterilization chamber with gas, and the steam exhaust pipe can remove water vapor in the vacuum sterilization chamber. The synergistic effect of the vacuum tube, the steam exhaust pipe, and the gas charging tube can achieve a pulsating vacuum high-temperature steam treatment function and improve usage efficiency.

[0016] The vacuum sterilization chamber is provided with a temperature sensor and an air pressure sensor. The temperature sensor monitors the real-time temperature in the vacuum sterilization chamber, and the air pressure sensor monitors the air pressure in the vacuum sterilization chamber.

[0017] The beneficial effects of the utility model are as follows: in the process of feeding medical waste into or taking it out of the vacuum sterilization chamber, only the air in the feed chamber will enter the vacuum sterilization chamber, the pressure and temperature in the vacuum sterilization chamber change slightly, and only a short time is needed to make the vacuum sterilization chamber reach the pressure and temperature required for sterilization, thereby effectively shortening the vacuuming and heating time and improving the treatment efficiency of medical waste.

[0018] The guide rails laid inside the device body can guide the automatic trolley, making it convenient for the automatic trolley to move back and forth between the vacuum sterilization chamber and the feeding chamber; and a slope is provided on one side of the avoidance groove on the guide rail. When the partition moves downward, the slope will exert a lateral force on the ramp, pushing the partition to fit tightly against the positioning strip, thereby improving the sealing between the partition and the positioning strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the device for treating medical waste using pulsating vacuum high-temperature steam according to the present invention;

[0021] Figure 2 This is a cross-sectional view of a device for treating medical waste using pulsating vacuum high-temperature steam.

[0022] In the figure: 1. Device body, 11. Vacuum sterilization chamber, 12. Feed chamber, 13. Insulation chamber, 14. Feed port, 15. Storage chamber, 2. Feed door, 3. Feed door drive mechanism, 4. Partition drive mechanism, 5. Partition, 51. Inclined platform, 6. Guide rail, 7. Vacuum tube, 8. Inflation tube, 9. Exhaust pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1, as Figure 1 、 Figure 2 As shown, the device for treating medical waste with pulsating vacuum high-temperature steam includes a device body 1, which is provided with a vacuum sterilization chamber 11 and a feed chamber 12, which are interconnected. A partition 5 is provided between the vacuum sterilization chamber 11 and the feed chamber 12. A feed door 2 is provided at the feed port 14 of the feed chamber 12. The partition 5 and the feed door 2 open alternately. The device body 1 is provided with an automatic trolley for holding medical waste. When medical waste is fed into or removed from the vacuum sterilization chamber 11, only the air in the feed chamber 12 enters the vacuum sterilization chamber 11. The pressure and temperature in the vacuum sterilization chamber 11 change little, and it takes only a short time for the vacuum sterilization chamber 11 to reach the pressure and temperature required for sterilization. This effectively shortens the time required for vacuuming and heating, thereby improving the efficiency of medical waste treatment.

[0025] Specifically, the medical waste treatment process is as follows: when the medical waste is subjected to vacuum high-temperature steam sterilization treatment, the partition 5 closes the vacuum sterilization chamber 11 and the feed door 2 is opened. At this time, the medical waste is placed on the automatic trolley in the feed chamber 2, and then the feed door 2 is closed, the partition 5 is opened, and the automatic trolley sends the medical waste into the vacuum sterilization chamber 11 and then closes the partition 5 for vacuum high-temperature sterilization; after the sterilization of the medical waste is completed, the partition 5 is opened, and the automatic trolley transports the sterilized medical waste out of the vacuum sterilization chamber 11 into the feed chamber 12, closes the partition 5 and opens the feed door 2, and takes the medical waste out of the feed chamber 12 to complete the sterilization of the medical waste.

[0026] Furthermore, the device body 1 is provided with a storage chamber 15 for accommodating the partition 5. The storage chamber 15 is connected to the feed chamber 12. The storage chamber 15 corresponds to the partition 5. A partition driving mechanism 4 is provided in the storage chamber 15, and the partition driving mechanism 4 is connected to the partition 5. The partition driving mechanism 4 drives the partition 5 to move, so that the partition 5 extends into the feed chamber 12 to block the vacuum sterilization chamber 11, or the partition 5 is retracted into the storage chamber 15 to open the vacuum sterilization chamber 11. In this embodiment, the partition driving mechanism 4 is a motor, which drives the partition to move through a gear rack transmission mechanism. The gear is provided on the output shaft of the motor, and the rack is vertically provided on the partition 5. The rack is located on one side of the feed chamber 12. The gear and the rack are engaged. The motor drives the gear to rotate to move the rack up and down, thereby realizing the up and down movement of the partition 5, so that the partition 5 blocks or opens the vacuum sterilization chamber 11.

[0027] In Example 2, based on Example 1, a device for treating medical waste with pulsating vacuum high-temperature steam is provided. A positioning strip is provided at the entrance of the vacuum sterilization chamber 11. The positioning strip is in contact with the partition 5, and a first sealing structure is provided between the positioning strip and the partition 5. The first sealing structure ensures the seal between the partition 5 and the positioning strip, thereby ensuring the seal of the vacuum sterilization chamber 11 when the partition 5 seals the vacuum sterilization chamber 11. The first sealing structure is a sealing strip.

[0028] Furthermore, a guide rail 6 is laid within the device body 1, extending through the vacuum sterilization chamber 11 and the feed chamber 12. The automatic trolley cooperates with the guide rail 6; a clearance groove is provided on the guide rail 6, which mates with the end of the partition 5. The guide rail 6 guides the automatic trolley, facilitating its reciprocating movement between the vacuum sterilization chamber 11 and the feed chamber 12. The clearance groove also effectively prevents the guide rail from interfering with the movement of the partition 5, maintaining full contact between the partition 5 and the positioning bar at the bottom of the device body.

[0029] Furthermore, a slope is provided on one side of the avoidance groove, and a slope 51 is provided at the end of the partition 5, and the slope cooperates with the slope 51. When the partition 5 moves downward, the slope exerts a lateral force on the slope 51, pushing the partition 5 to fit tightly with the positioning strip, thereby improving the sealing between the partition 5 and the positioning strip.

[0030] Furthermore, the device body 1 is provided with a feed door drive mechanism 3, which is connected to the feed door 2. This mechanism drives the feed door 2 up and down, opening and closing the feed chamber 12. The drive mechanism 3 is a motor, which drives the feed door through a rack and pinion transmission mechanism. Specifically, a gear is mounted on the motor output shaft, and a rack is vertically mounted on the feed door 2. The gear and rack mesh with each other, allowing the motor to rotate the gear, which in turn drives the rack, causing the feed door 2 to move up and down, opening and closing the feed port 14.

[0031] Furthermore, a positioning groove is provided at the feed port 14, and a second sealing structure is provided between the feed door 2 and the positioning groove. The second sealing structure ensures the sealing between the feed door 2 and the positioning groove, thereby ensuring that when the partition 5 is opened, no excessive air enters the vacuum sterilization chamber 11.

[0032] Furthermore, a heat preservation chamber 13 is provided outside the vacuum sterilization chamber 11. The heat preservation chamber 13 can reduce the temperature loss in the vacuum sterilization chamber 11, ensure the temperature environment of the entire sterilization, and improve the sterilization effect.

[0033] Furthermore, a vacuum tube 7 and a gas charging tube 8 are provided at the top of the vacuum sterilization chamber 11, and a steam exhaust pipe 9 is provided at the bottom of the vacuum sterilization chamber 11. The vacuum tube 7 is connected to a vacuum pump, and the gas charging tube 8 is connected to a steam generator. The vacuum tube 7 can drain the gas in the vacuum sterilization chamber 11 through the vacuum pump, so that the vacuum sterilization chamber 11 is in a negative pressure state. The gas charging tube 8 can fill the vacuum sterilization chamber 11 with gas through the steam generator, and the steam exhaust pipe 9 can remove water vapor from the vacuum sterilization chamber 11. The synergistic effect of the vacuum tube 7, the steam exhaust pipe 9 and the gas charging tube 8 can realize the pulsating vacuum high-temperature steam treatment function and improve the use efficiency.

[0034] Furthermore, a temperature sensor and an air pressure sensor are installed in the vacuum sterilization chamber 11. The temperature sensor monitors the real-time temperature of the vacuum sterilization chamber 11, and the air pressure sensor monitors the air pressure within the vacuum sterilization chamber 11. This allows staff to confirm the temperature and air pressure in the vacuum sterilization chamber 11 in real time and adjust the air pressure and temperature using the vacuum pump and steam generator to ensure the sterilization effect of medical waste.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for treating medical waste using pulsating vacuum high-temperature steam, comprising a device body (1), characterized in that: A vacuum sterilization chamber (11) and a feed chamber (12) which are interconnected are provided in the device body (1); a partition (5) is provided between the vacuum sterilization chamber (11) and the feed chamber (12); a feed door (2) is provided at a feed inlet (14) of the feed chamber (12); the partition (5) and the feed door (2) are opened alternately; and an automatic trolley for containing medical waste is provided in the device body (1).

2. The device for treating medical waste with pulsating vacuum high-temperature steam according to claim 1, characterized in that: A storage chamber (15) for storing the partition (5) is provided on the device body (1); the storage chamber (15) is communicated with the feed chamber (12); the storage chamber (15) corresponds to the partition (5); a partition driving mechanism (4) is provided in the storage chamber (15); and the partition driving mechanism (4) is connected to the partition (5).

3. The device for treating medical waste with pulsating vacuum high-temperature steam according to claim 1 or 2, characterized in that: A positioning strip is provided at the inlet of the vacuum sterilization chamber (11), the positioning strip is in contact with the partition (5), and a first sealing structure is provided between the positioning strip and the partition (5).

4. The device for treating medical waste with pulsating vacuum high-temperature steam according to claim 3, characterized in that: A guide rail (6) is laid inside the device body (1), the guide rail (6) passes through the vacuum sterilization chamber (11) and the feed chamber (12), and the automatic trolley cooperates with the guide rail (6); an avoidance groove is provided on the guide rail (6), and the avoidance groove cooperates with the end of the partition (5).

5. The device for treating medical waste with pulsating vacuum high-temperature steam according to claim 4, characterized in that: A sloped surface is provided on one side of the avoidance groove, and a sloped platform (51) is provided at the end of the partition plate (5), wherein the sloped surface cooperates with the sloped platform (51).

6. The device for treating medical waste with pulsating vacuum high-temperature steam according to any one of claims 1, 2, 4 and 5, characterized in that: A feed door driving mechanism (3) is provided on the device body (1), and the feed door driving mechanism (3) is connected to the feed door (2).

7. The device for treating medical waste with pulsating vacuum high-temperature steam according to claim 6, characterized in that: A positioning groove is provided at the feed port (14), and a second sealing structure is provided between the feed door (2) and the positioning groove.

8. The device for treating medical waste with pulsating vacuum high-temperature steam according to claim 1, 5 or 7, characterized in that: A heat preservation chamber (13) is provided outside the vacuum sterilization chamber (11).

9. The device for treating medical waste with pulsating vacuum high-temperature steam according to claim 8, characterized in that: A vacuum tube (7) and an air charging tube (8) are provided at the top of the vacuum sterilization chamber (11), and a steam exhaust pipe (9) is provided at the bottom of the vacuum sterilization chamber (11).

10. The device for treating medical waste with pulsating vacuum high-temperature steam according to claim 9, characterized in that: A temperature sensor and an air pressure sensor are arranged in the vacuum sterilization chamber (11).

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