Medical waste treatment system

The design of the medical waste treatment system has enabled the automated treatment of discarded infusion equipment, solving the problems of needlestick injury risk and cumbersome operation, and improving safety and efficiency.

CN224333076UActive Publication Date: 2026-06-09SHANGHAI MINHANG DISTRICT INTEGRATED TRADITIONAL CHINESE & WESTERN MEDICINE HOSPITAL (SHANGHAI MINHANG DISTRICT TUBERCULOSIS PREVENTION & TREATMENT HOSPITAL)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI MINHANG DISTRICT INTEGRATED TRADITIONAL CHINESE & WESTERN MEDICINE HOSPITAL (SHANGHAI MINHANG DISTRICT TUBERCULOSIS PREVENTION & TREATMENT HOSPITAL)
Filing Date
2025-06-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Current technologies present challenges for medical staff in handling discarded infusion sets, including a high risk of needlestick injuries, cumbersome procedures, inadequate infection control, and low efficiency in sorting and processing.

Method used

Design a medical waste treatment system, including a treatment chamber, a gripping device, a shearing device, a spraying device, and multiple collection containers. The system uses robotic arms to work together to automatically identify, grip, shear, and classify medical waste, and uses the spraying device to disinfect and sterilize it.

Benefits of technology

It effectively reduces the occupational exposure risk of medical staff, improves the safety, standardization and automation level of medical waste treatment, and reduces operation time and psychological stress.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to medical waste treatment technical field especially, relate to a kind of medical waste treatment system, comprising: processing room, inside formation is used to process medical waste article processing space;Grabbing device, set in processing room, grabbing device includes: first mechanical arm, for grabbing the main part of medical waste article;Second mechanical arm, for grabbing the sharp part of medical waste article;Shearing device, set in the adjacent position of grabbing device, for in the case where grabbing device grabs medical waste article, the sharp part of medical waste article is sheared from the main part of medical waste article;Multiple storage containers, set in processing room, for classifying the part of medical waste article;Spray device, set in the top of processing room, for injecting disinfectant and / or sterilization water in processing space.This scheme is to realize the integrated processing of safe shearing separation and efficient disinfection sterilization of medical waste article, especially needle infusion set.
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Description

Technical Field

[0001] This utility model relates to the field of medical waste treatment technology, and in particular to a medical waste treatment system. Background Technology

[0002] In modern healthcare systems, the widespread use of medical devices has greatly improved the efficiency and accuracy of disease diagnosis, treatment, and nursing care. However, in actual clinical practice, the design of some medical devices still has certain limitations, especially in infection control and occupational safety protection, failing to fully meet the operational needs and safety requirements of medical personnel.

[0003] Taking intravenous infusion as an example, as one of the most commonly used treatment methods in clinical practice, it involves a large number of disposable instruments, such as infusion bags, infusion sets, and needles. According to the current medical waste disposal procedures, discarded infusion sets are usually disposed of manually by medical staff, including cutting the infusion tubing, removing the needle, and sorting them. This process is not only time-consuming and labor-intensive, but also carries a high risk of occupational exposure, especially needlestick injuries.

[0004] Studies have shown that needlestick injuries are one of the most common occupational injuries among healthcare workers, potentially transmitting various highly dangerous bloodborne infectious diseases, such as hepatitis B (HBV), hepatitis C (HCV), and HIV. Such incidents not only pose a serious threat to the physical health of healthcare workers but can also trigger psychological reactions such as anxiety and fear, thereby affecting their work performance and quality of life.

[0005] Furthermore, due to the lack of standardized operating tools and safety devices, current manual processing methods are deficient in terms of standardization, operability, and safety. Utility Model Content

[0006] This utility model provides a medical waste treatment system to solve the shortcomings of existing technologies in which medical staff have a high risk of needlestick injuries, cumbersome operation, insufficient infection control and low classification and treatment efficiency when handling waste infusion sets. It realizes the integrated treatment of medical waste, especially infusion sets with needles, by safe cutting and separation and efficient disinfection and sterilization.

[0007] This utility model provides a medical waste treatment system, comprising: a treatment chamber, forming a treatment space for treating medical waste; a gripping device disposed in the treatment chamber, the gripping device comprising: a first robotic arm for gripping the main body of the medical waste; a second robotic arm for gripping the sharp parts of the medical waste; a shearing device disposed adjacent to the gripping device for shearing and separating the sharp parts of the medical waste from the main body of the medical waste when the gripping device grips the medical waste; multiple collection containers disposed in the treatment chamber for classifying and collecting the various parts of the medical waste; and a spraying device disposed at the top of the treatment chamber for spraying disinfectant and / or sterilizing water into the treatment space.

[0008] According to one embodiment of the present invention, an automatic door is provided on the side of the processing chamber; when the automatic door is open, the first robotic arm and the second robotic arm can extend out of the automatic door and grab the medical waste from the outside of the automatic door into the processing space.

[0009] According to one embodiment of the present invention, a hot air drying device is included, the hot air drying device comprising: a fan module disposed at the top of the processing chamber for blowing air into the processing space during operation; and a heating module disposed on the air inlet side of the fan module for generating heat to heat the air on the air inlet side.

[0010] According to one embodiment of the present invention, the hot air drying device further includes a filter module disposed on the air inlet side of the fan module for filtering impurities in the air flowing towards the fan module; and / or, protective structures are respectively disposed on the front and rear sides of the fan of the fan module, wherein the protective structure is any one of a filter screen or a protective grille. The present invention also provides one or more of these.

[0011] According to one embodiment of the present invention, the spraying device includes a spray arm disposed on the inner top of the treatment chamber, and a liquid supply mechanism disposed on the outer side of the treatment chamber. The liquid supply mechanism includes: a disinfectant container for storing disinfectant; a water container for storing water, the water container having an ultraviolet lamp inside for killing bacteria in the water container; a reversing valve connected to the disinfectant container and the water container respectively; and a liquid pump connected between the reversing valve and the spray arm for pumping disinfectant or sterilizing water from the disinfectant container or the water container to the spray arm through the connection of the reversing valve.

[0012] According to one embodiment of the present invention, the spray arm is provided with a rotating shaft, and the spray arm is rotatably mounted on the top of the treatment chamber via the rotating shaft. Inside the rotating shaft, the spray arm is provided with a spiral flow channel, which is used to make the spray arm rotate around the axis of the rotating shaft under the action of the fluid when the liquid pump is running. The spray arm is provided with a plurality of spray holes arranged along the length direction of the spray arm. The rotating shaft is connected to the middle part of the spray arm, and the shape of the spray arm gradually tapers from the middle to both ends.

[0013] According to one embodiment of the present invention, the gripping device includes a mechanical base; a first robotic arm and a second robotic arm are jointly mounted on the mechanical base; at the ends of the first robotic arm and the second robotic arm, gripping mechanisms are respectively provided, each gripping mechanism including: a gripper seat, mounted at the ends of the first robotic arm and the second robotic arm; two symmetrically arranged gear arms, each gear arm including a gear portion hinged to the gripper seat and a swing arm portion extending from the gear portion; two symmetrically arranged gripper bars, the distal ends of the gripper bars forming claw tips for gripping the medical waste, the proximal ends of the gripper bars being hinged to the distal ends of the swing arm portions, and the proximal ends and middle portions of the gripper bars being respectively connected to the gripper seat via hinged connecting rods; and a gripper driver, disposed on the gripper seat, for simultaneously driving the two symmetrically arranged gear arms to swing relative to or opposite to each other.

[0014] According to one embodiment of the present invention, the plurality of storage containers include a sharps container disposed adjacent to the cutting device for storing the infusion needles of the infusion bag and the needle tips of the syringe. The sharps container is provided with a compartment door for sealing the opening of the sharps container. A lower partition is provided in the processing chamber. The processing space is formed above the lower partition, and the gripping device, the cutting device, and the spraying device are all located in the processing space. A waste recycling space is formed below the lower partition, and a plurality of infectious waste bins are provided in the waste recycling space.

[0015] According to one embodiment of the present invention, the shearing device includes: a third robotic arm; a scissor mechanism disposed at the end of the third robotic arm, the scissor mechanism including: a linkage drive mechanism disposed at the end of the third robotic arm; and a first blade and a second blade symmetrically arranged and mounted on the linkage drive mechanism for synchronously moving in opposite or opposite directions under the drive of the linkage drive mechanism.

[0016] According to one embodiment of the present invention, the end of the third robotic arm is further provided with a high-pressure spraying device for high-pressure spraying disinfectant; the nozzle of the high-pressure spraying device is directed toward the symmetrical center line of the first blade and the second blade; when the first blade and the second blade are close together, the high-pressure spraying device is used to spray disinfectant toward the closed area of ​​the first blade and the second blade; when the first blade and the second blade are far apart, the high-pressure spraying device is used to locally spray disinfectant onto the inner wall of the processing chamber.

[0017] The medical waste treatment system provided by this utility model uses a gripping device with a first robotic arm and a second robotic arm to grip the main body and sharp parts of medical waste, respectively. With the help of a shearing device at an adjacent position, the sharp parts are separated from the main body. The waste is then classified and stored using multiple sorting containers. At the same time, a top spray device is used to disinfect and sterilize the treatment space, thereby effectively reducing the occupational exposure risk of medical staff and improving the safety, standardization and automation level of medical waste treatment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the modular structure of the medical waste treatment system provided by this utility model.

[0020] Figure 2 This is a schematic diagram of the gripping device of the medical waste treatment system provided by this utility model.

[0021] Figure 3 This is a schematic diagram of the shearing device of the medical waste treatment system provided by this utility model.

[0022] Figure 4 This is a schematic diagram of the shear mechanism of the cutting device.

[0023] Figure 5 This is a schematic diagram of the fan module of the medical waste treatment system provided by this utility model.

[0024] Figure 6 This is a schematic diagram of the spray arm of the medical waste treatment system provided by this utility model.

[0025] Figure label:

[0026] 10. Processing chamber; 11. Automatic door; 12. Fan module; 121. Protective structure; 13. Heating module; 14. Sharps container; 15. Lower partition; 16. Infectious waste bin; 21. First robotic arm; 22. Second robotic arm; 23. Mechanical base; 24. Gripper seat; 25. Gear arm; 26. Gripper rod; 27. Hinge link; 28. Gripper actuator; 30. Shearing device; 31. Third robotic arm; 32. Linkage drive mechanism; 33. First blade; 34. Second blade; 35. High-pressure jet device; 40. Spraying device; 41. Spray arm; 42. Disinfectant container; 43. Water container; 44. Reversing valve; 45. Liquid pump; 46. Rotating shaft; 47. Spray hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The medical waste treatment system provided by this invention facilitates the automation of infusion waste treatment and sorting, helping to reduce the probability of needlestick injuries and thus better protecting the occupational safety of medical personnel. When processing used infusion bags and tubing, the system reduces reliance on manual operation, further lowering operational risks and alleviating the workload of medical staff. After completing medical waste treatment, the system has internal cleaning, disinfection, and drying functions, facilitating subsequent use and improving equipment safety and operational efficiency.

[0030] The following is combined with Figures 1-6 This invention describes the specific implementation of the medical waste treatment system.

[0031] like Figure 1 As shown, this utility model provides a medical waste treatment system, including: a treatment chamber 10, which forms a treatment space for treating medical waste; a gripping device disposed in the treatment chamber 10, the gripping device including: a first robotic arm 21 for gripping the main body of the medical waste; a second robotic arm 22 for gripping the sharp parts of the medical waste; a shearing device 30 disposed adjacent to the gripping device for shearing and separating the sharp parts of the medical waste from the main body of the medical waste when the gripping device grips the medical waste; multiple storage containers disposed in the treatment chamber 10 for classifying and storing the various parts of the medical waste; and a spraying device 40 disposed on the top of the treatment chamber 10 for spraying disinfectant and / or sterilizing water into the treatment space.

[0032] Specifically, the system utilizes a dual-arm robotic system to automatically identify and precisely grasp medical waste (such as discarded infusion sets and needles). The first robotic arm 21 secures or grips the main components, including infusion tubing, while the second robotic arm 22 specifically handles sharp parts like needles, allowing for safe separation by a shearing device 30. The separated waste is then placed into corresponding collection containers for categorized disposal. Simultaneously, a spray system 40 efficiently disinfects the processing area before and after treatment, ensuring a clean and safe operating environment.

[0033] In practical applications, the aforementioned medical waste treatment system can be deployed in hospital wards, operating rooms, or centralized medical waste storage areas for automated processing of used disposable infusion sets. Medical staff only need to place the medical waste to be processed into the treatment chamber 10 and start the equipment. Subsequent processes such as gripping, cutting, sorting, and disinfection can be controlled by the controller or automatically completed by the system in conjunction with an intelligent control system, eliminating the need for direct manual intervention. This effectively reduces the occupational exposure risks associated with manual operation and improves processing efficiency and standardization.

[0034] Furthermore, as an extension of this utility model, an image recognition module and an intelligent control system can be integrated into the system for automatic identification and positioning of input medical waste. This module can acquire image information via a camera and analyze the structural characteristics of the medical waste using AI algorithms to automatically determine the needle position and cutting point, thereby guiding the two robotic arms to work together precisely and improving the system's intelligence level and applicability. In addition, a remote monitoring interface can be configured to support real-time monitoring and management of the equipment's operating status by the hospital's logistics management system, realizing a new model of information-based and intelligent medical waste treatment. In this extended solution, the specific connection and layout of the control circuit can be set as needed to adapt to different equipment structures and functional requirements. For example, the control circuit can adopt a distributed layout, connecting the main control module and each execution unit (such as the robotic arm drive module) through a communication bus to achieve modular control; alternatively, a centralized control structure can be adopted, with a central controller coordinating the working sequence and action flow of each component. Furthermore, the control circuit can also integrate a sensor signal acquisition module to acquire parameters such as the robotic arm's position, pressure, and temperature in real time, ensuring the stability and safety of the system operation. The circuit layout should follow the principles of electromagnetic compatibility design and can be flexibly arranged according to the spatial structure of the equipment to improve the reliability and ease of maintenance of the system.

[0035] Furthermore, according to the medical waste treatment system of this utility model, an automatic door 11 is provided on the side of the treatment chamber 10. When the automatic door 11 is open, the first robotic arm 21 and the second robotic arm 22 can extend out of the automatic door 11 to grab medical waste from the outside of the automatic door 11 and transfer it into the treatment space. Specifically, the automatic door 11 is preferably provided on the side wall of the treatment chamber 10. The automatic door 11 can slide along a track or rotate via hinges to achieve opening and closing. After the system receives the medical waste treatment instruction and completes the safety check (such as confirming that there is no personnel interference in the operating area), the automatic door 11 will open, allowing the first robotic arm 21 and the second robotic arm 22 to partially extend to the outside of the treatment chamber 10. At this time, the robotic arms can grab the medical waste to be treated from the outside according to a preset path or guided by image recognition, and smoothly transfer it into the treatment space. After the grabbing is completed, the automatic door 11 closes again to ensure that the subsequent cutting, sorting and disinfection processes are carried out in a closed environment to prevent possible cross-contamination and occupational exposure risks. This structural design not only enhances the operational flexibility of the equipment but also effectively achieves human-machine isolation, further ensuring the operational safety of medical personnel.

[0036] like Figure 1 and Figure 5As shown, a medical waste treatment system according to this utility model includes a hot air drying device, which comprises: a fan module 12, disposed on the top of the treatment chamber 10, for blowing air into the treatment space during operation; and a heating module 13, disposed on the air inlet side of the fan module 12, for generating heat to heat the air on the air inlet side. Specifically, the hot air drying device is integrated into the top structure of the treatment chamber 10, including the fan module 12 and the heating module 13. The fan module 12 is activated after the system completes the spray disinfection procedure, introducing external air or recirculated air into the treatment chamber 10 and supplying air into the treatment space through reasonably arranged air vents to accelerate the evaporation and discharge of residual liquid during the medical waste treatment process. The heating module 13 is disposed on the air inlet side of the fan module 12, and can heat the air before it enters the fan, thereby achieving effective control of humidity in the treatment space and improving drying efficiency.

[0037] Furthermore, the heating temperature of the heating module 13 can be adjusted according to the needs of different processing stages and is electrically connected to the control system to achieve intelligent temperature control. For example, in the drying stage after disinfection, the heating module 13 can heat the air to a suitable temperature (such as 50~80℃) to ensure that all surfaces inside the equipment and the surface of medical waste are dried quickly, reducing the risk of bacterial growth, and providing a clean and dry working environment for the next processing operation.

[0038] Furthermore, according to the medical waste treatment system of this utility model, the hot air drying device further includes a filter module disposed on the air inlet side of the fan module 12 for filtering impurities in the air flowing towards the fan module 12; and / or, protective structures 121 are respectively disposed on the front and rear sides of the fan of the fan module 12, wherein the protective structure 121 is any one of a filter screen or a protective grille, and this utility model also provides one or more of them. Specifically, the hot air drying device preferably further includes a filter module, which can be disposed on the air inlet side of the fan module 12 for filtering impurities in the air flowing towards the fan module 12, avoiding pollution of the treatment process and the internal environment of the equipment by external dust or impurities, and is conducive to maintaining the long-term stable operation of the system. The filter module can be selected with different levels of filter media according to actual needs to adapt to different purification requirements.

[0039] Furthermore, protective structures 121 can be installed on both the front and rear sides of the fan module 12. These protective structures 121 can be one or more combinations of filters and protective grilles. The protective structures 121 can prevent large-volume materials from entering the fan and may also prevent accidental injury to personnel. Through the above design, the medical waste treatment system provided by this utility model achieves multi-level purification and protection throughout the entire process from air introduction to exhaust, effectively ensuring the cleanliness of the environment inside the treatment room 10 and the safety and stability of equipment operation.

[0040] like Figure 1 and Figure 6 As shown, according to a medical waste treatment system of the present invention, the spray device 40 includes a spray arm 41 disposed on the inner top of the treatment chamber 10, and a liquid supply mechanism disposed on the outer side of the treatment chamber 10. The liquid supply mechanism includes: a disinfectant container 42 for storing disinfectant; a water container 43 for storing water, which is equipped with an ultraviolet lamp for killing bacteria in the water container 43; a reversing valve 44 connected to the disinfectant container 42 and the water container 43 respectively; and a liquid pump 45 connected between the reversing valve 44 and the spray arm 41 for pumping disinfectant or sterilized water from the disinfectant container 42 or the water container 43 to the spray arm 41 through the connection of the reversing valve 44. Specifically, in the liquid supply mechanism of the spray device 40, the disinfectant container 42 is used to store disinfectant suitable for medical waste treatment, such as chlorine-containing or peroxide-based disinfectants; the water container 43 is used to store sterilized water for rinsing or dilution, and is equipped with an ultraviolet lamp inside, which can continuously sterilize the stored water, prevent the growth of bacteria in the water, and ensure the cleanliness of the spray water.

[0041] The reversing valve 44 is connected to the disinfectant container 42 and the water container 43 respectively, allowing for switching of the liquid source according to a preset program or operating instructions, thus enabling free switching between disinfectant and sterilizing water. A liquid pump 45 is located between the reversing valve 44 and the spray arm 41, responsible for pressurizing and delivering the selected liquid to the spray arm 41, and then evenly spraying it into the processing space through multiple spray holes 47, providing comprehensive cleaning and disinfection of medical waste and the interior of the processing room 10. Through this structural design, the spray device 40 can flexibly select the spray medium at different processing stages. For example, a high-efficiency disinfectant can be used during the disinfection stage, and sterilizing water can be used to rinse the disinfectant after disinfection, thereby improving the overall cleaning and sterilization effect. Simultaneously, ultraviolet lamps sterilize the water in the water container 43 in real time, avoiding secondary contamination and further enhancing the system's hygiene and safety performance.

[0042] Furthermore, according to the medical waste treatment system of this utility model, the spray arm 41 is provided with a rotating shaft 46. The spray arm 41 is rotatably mounted on the top of the treatment chamber 10 via the rotating shaft 46. Inside the rotating shaft 46, the spray arm 41 is provided with a spiral flow channel, which is used to make the spray arm 41 rotate around the axis of the rotating shaft 46 under the action of the fluid when the liquid pump 45 is running. The spray arm 41 is provided with a plurality of spray holes 47 arranged along the length direction of the spray arm 41. The rotating shaft 46 is connected to the middle part of the spray arm 41, and the shape of the spray arm 41 gradually tapers from the middle to both ends. Specifically, the spray arm 41 is rotatably mounted on the top of the treatment chamber 10 via its rotating shaft 46, and when the liquid pump 45 is started and the fluid is delivered to the spray arm 41, the reaction force generated by the fluid flow drives the spray arm 41 to rotate automatically, so as to achieve all-round spraying of various areas in the treatment space. The rotating shaft 46 has a spiral flow channel inside, which can generate tangential force when the liquid flows through it, further driving the spray arm 41 to rotate around the axis of the rotating shaft 46, thereby improving the spray coverage and uniformity.

[0043] Multiple spray holes 47 are arranged along the length of the spray arm 41. These spray holes 47 can be designed with different angles and diameters according to actual needs to enhance the spraying effect. The internal space of the spray arm 41 is designed to be thicker in the middle and gradually taper towards both ends. This structure helps to balance the flow resistance of the fluid inside the spray arm 41, so that the liquid delivered from the liquid pump 45 can maintain a relatively consistent pressure distribution as it flows to both ends of the spray arm 41. This ensures that the liquid pressure at each spray hole 47 tends to be uniform, avoiding the problem of insufficient spraying force at the end. This structure not only improves the uniformity and efficiency of spray cleaning and disinfection, but also helps to reduce mechanical vibration and wear caused by uneven pressure, improving the working stability and service life of the spray device 40. Combined with the self-rotation function of the spray arm 41, a highly efficient, uniform, and stable spraying effect is achieved, providing a reliable cleaning and sterilization guarantee for the medical waste treatment system.

[0044] like Figure 2As shown, according to the present invention, a medical waste treatment system includes a gripping device comprising a mechanical base 23; a first mechanical arm 21 and a second mechanical arm 22 are mounted together on the mechanical base 23; gripping mechanisms are respectively provided at the ends of the first mechanical arm 21 and the second mechanical arm 22, each gripping mechanism comprising: a gripping base 24, mounted at the ends of the first mechanical arm 21 and the second mechanical arm 22; two symmetrically arranged gear arms 25, each gear arm 25 including a gear portion hinged to the gripping base 24 and a swing arm portion extending from the gear portion; two symmetrically arranged gripping rods 26, the distal ends of the gripping rods 26 forming gripper heads for gripping medical waste, the proximal ends of the gripping rods 26 being hinged to the distal ends of the swing arms, and the proximal ends and middle portions of the gripping rods 26 being connected to the gripping base 24 respectively via hinged connecting rods 27; and a gripping driver 28, disposed on the gripping base 24, for simultaneously driving the two symmetrically arranged gear arms 25 to swing relative to or opposite to each other. Specifically, the first robotic arm 21 and the second robotic arm 22 are mounted together on the mechanical base 23, and are used to grasp the main body (such as infusion tubing) and sharp parts (such as needles) of medical waste, respectively. Both robotic arms have identical gripper mechanisms at their ends to adapt to different types of medical waste. Each gripper mechanism includes a gripper base 24, two sets of symmetrically arranged gear arms 25 and gripper rods 26, and a gripper driver 28. The gripper base 24 is fixedly connected to the end of the robotic arm; the gear arm 25 consists of a gear section and a swing arm section. The gear section is hinged to the gripper base 24 and can rotate around an axis, while the swing arm section extends from the gear section, forming a lever structure; the distal end of the gripper rod 26 is the gripper head end that actually performs the grasping action, and its proximal end is hinged to the end of the swing arm section and connected to the gripper base 24 through hinged connecting rods 27 at the middle and proximal ends, thus forming a multi-link linkage structure.

[0045] The gripper driver 28 is located inside the gripper base 24, and its output end is connected to at least one of the gear arms 25. By driving the gear arm 25 to rotate, it drives the other gear arm 25 to rotate synchronously in the opposite direction, realizing the opening or closing action of the two gripper bars 26. This gripper mechanism based on gear meshing transmission has the advantages of compact structure, rapid response, and controllable gripping force. It can automatically adjust the gripping angle and force according to medical waste of different shapes and sizes, ensuring a stable and reliable gripping process and avoiding the risks of slippage or misoperation.

[0046] like Figure 1As shown, according to a medical waste treatment system of this utility model, multiple collection containers include a sharps container 14, located adjacent to the shearing device 30, for collecting infusion needles from infusion bags and needle tips from syringes. The sharps container 14 is equipped with a compartment door for sealing the opening of the sharps container 14. A lower partition 15 is provided inside the treatment chamber 10. A treatment space is formed above the lower partition 15, where the gripping device, shearing device 30, and spraying device 40 are all located. A waste recycling space is formed below the lower partition 15, and multiple infectious waste bins 16 are provided in the waste recycling space. Specifically, the medical waste treatment system is equipped with multiple classified collection containers for classifying and storing different parts of medical waste after shearing and separation. Among them, the sharps container 14 serves as a dedicated container specifically for collecting medical waste with a risk of puncture wounds, such as infusion needles from infusion bags and needle tips from syringes. The sharps container 14 is positioned adjacent to the shearing device 30, facilitating the precise placement of sharp parts into the container by the second robotic arm 22. The top of the sharps container 14 has a compartment door that keeps the container opening closed when not in use, preventing accidental ejection of needles or spread of contamination and ensuring operational safety.

[0047] In the internal structural design of the processing chamber 10, the system preferably divides the entire cavity into two functional areas by setting a lower partition 15: the upper part of the lower partition 15 is the processing space, where the gripping device, shearing device 30, and spraying device 40 are all arranged, and all key operations such as gripping, shearing, and spraying disinfection of medical waste are completed in this space; while the lower part of the lower partition 15 forms a waste recycling space, which is used to hold multiple infectious waste bins 16. These bins are used to collect non-sharp infectious waste such as cut infusion tubing and infusion bag bodies. Through the above-mentioned layered structural design, the system achieves effective isolation between the processing operation area and the waste temporary storage area, which not only improves the overall space utilization of the equipment, but also effectively controls the risk of cross-contamination. At the same time, each storage container (including the sharps container 14 and the infectious waste bin 16) is preferably removable and replaceable for easy emptying and maintenance.

[0048] like Figure 3 and Figure 4As shown, according to a medical waste treatment system of this utility model, the shearing device 30 includes: a third robotic arm 31; and a scissor mechanism disposed at the end of the third robotic arm 31. The scissor mechanism includes: a linkage drive mechanism 32 disposed at the end of the third robotic arm 31; and symmetrically arranged first blades 33 and second blades 34 mounted on the linkage drive mechanism 32 for synchronous movement in opposite or opposite directions under the drive of the linkage drive mechanism 32. Specifically, after the gripping device fixes and positions the medical waste (such as an infusion set), the third robotic arm 31 drives the scissor mechanism to move to the designated position. The linkage drive mechanism 32 drives the first blades 33 and second blades 34 to close relative to each other, forming a shearing force to safely separate the sharp part (such as a needle) of the medical waste from its main body. This shearing process is completed in a closed processing space, ensuring safe and controllable operation and avoiding occupational exposure risks caused by manual operation.

[0049] Furthermore, according to the medical waste treatment system of this utility model, the end of the third robotic arm 31 is preferably also equipped with a high-pressure spray device 35 for high-pressure spraying disinfectant. The nozzle of the high-pressure spray device 35 is directed towards the symmetrical center line of the first blade 33 and the second blade 34, which can pre-disinfect the blade area before the shearing action or quickly rinse residual contaminants after shearing. When the first blade 33 and the second blade 34 are close together, the high-pressure spray device 35 is used to spray disinfectant at the closed area of ​​the first blade 33 and the second blade 34, effectively removing blood or pathogens that may be attached to the blade and preventing cross-contamination. When the first blade 33 and the second blade 34 are far apart, the high-pressure spray device 35 can also be used to locally spray disinfectant on the inner wall of the treatment chamber 10, for example, to perform targeted cleaning and disinfection of specific areas of the inner wall of the treatment chamber 10 (such as the area around the shearing area), improving the overall cleanliness and sterilization efficiency. By integrating the high-pressure spray function, the shearing device 30 not only achieves precise shearing but also enhances the hygiene safety and automated maintenance capabilities of the equipment in high-risk environments.

[0050] Furthermore, a high-definition camera can be integrated into the end of the third robotic arm 31. Operators can use the camera footage to assess the cleanliness of the first and second blades 33 and 34 in real time, ensuring that the shearing device 30 operates without any contaminants, thus improving the hygiene and safety of the equipment. Simultaneously, the high-definition camera can also be used to observe whether there are any residues or abnormalities on the inner wall of the processing chamber 10, assisting in determining whether more thorough cleaning or maintenance is needed. In addition, one or more fixed high-definition cameras can be installed in other locations within the processing chamber 10 that do not affect the normal operation of the device, enabling multi-angle monitoring of the entire processing space. This facilitates remote operation, troubleshooting, and subsequent video tracing, further enhancing the system's intelligence and operational reliability.

[0051] According to a preferred embodiment of the medical waste treatment system of this utility model, the automatic door 11 on the side of the treatment chamber 10 can be opened manually or automatically based on control commands, facilitating the placement of medical waste to be treated. Subsequently, the first robotic arm 21 grasps the main body of the infusion bag, and the second robotic arm 22 grasps its needle tip. After positioning is completed, the automatic door 11 closes, and the cutting operation is performed within the enclosed treatment space. The third robotic arm 31 drives the scissor mechanism to precisely cut the infusion set, with the cutting position located below the needle tip held by the second robotic arm 22. At this time, the compartment door of the sharps container 14 opens, and the second robotic arm 22 safely places the needle tip into the sharps container 14. The compartment door then closes to ensure that sharp objects are not exposed. Next, the partition at the bottom of the treatment chamber 10 opens, and the third robotic arm 31 cuts again the needle connection part of the infusion bag held by the first robotic arm 21, allowing the infusion strap to fall naturally into the corresponding infectious waste bin 16 below. Subsequently, the second robotic arm 22 picks up the remaining needle portion from the first robotic arm 21 and places it back into the sharps container 14, at which point the compartment door closes. Finally, the first robotic arm 21 places the remaining main body of the infusion bag into another infectious waste bin 16 located in the waste recycling space, and the lower partition 15 of the processing chamber 10 closes, completing the entire infusion set sorting and processing process. The procedure for handling syringes is similar: the first robotic arm 21 grips the syringe barrel, the second robotic arm 22 removes the needle tip and safely transfers it to the sharps container 14, and then the first robotic arm 21 places the syringe barrel into the infectious waste bin 16, achieving the safe disassembly and sorting of the syringe.

[0052] After processing, the system can be set with a disinfection timer. Upon reaching the set time, the top spray device 40 activates, and the spray arm 41 rotates to achieve full coverage, first spraying disinfectant to thoroughly disinfect the interior of the processing space and all robotic arm components. Then, it switches to sterile water rinsing. This sterile water comes from a water container 43, which is equipped with ultraviolet lamps to continuously sterilize the water source, reducing additional sterilization steps and improving efficiency. After rinsing, the hot air drying device activates, and through the coordinated action of the fan module 12 and the heating module 13, efficiently drys the inner walls of the processing chamber 10 and all components, preparing for the next processing cycle.

[0053] Furthermore, the end of the third robotic arm 31 can also integrate a high-pressure spray device 35 and an AI recognition system (specifically, the aforementioned high-definition camera can be linked with the AI ​​recognition system). When the AI ​​recognition system detects bloodstains or other contaminants on the scissor tip, the high-pressure spray device 35 can immediately spray disinfectant on the cutting area, ensuring that the cutting tool is always clean. Simultaneously, the inner wall of the processing chamber 10 is preferably also equipped with an AI image recognition device (such as a fixed-position high-definition camera linked with the AI ​​recognition system), which can monitor in real time for the presence of bloodstains or stubborn stains. Once an abnormality is detected, the control system can guide the third robotic arm 31 to the corresponding area for targeted cleaning and disinfection, thereby achieving intelligent and adaptive cleaning and maintenance functions.

[0054] The overall design of this utility model system facilitates the automatic grabbing, cutting, sorting, storage, cleaning, and disinfection of medical waste such as infusion sets and syringes, effectively reducing the occupational exposure risk of medical staff and improving the safety, standardization, and automation level of medical waste treatment.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A medical waste treatment system, characterized in that, include: The processing room is an internal space used for handling medical waste. A gripping device is disposed in the processing chamber, the gripping device comprising: The first robotic arm is used to grasp the main body of the medical waste. The second robotic arm is used to grasp the sharp parts of the medical waste; A cutting device is disposed adjacent to the gripping device and is used to cut and separate the sharp part of the medical waste from the main body of the medical waste when the gripping device grips the medical waste. Multiple storage containers are provided in the processing chamber for classifying and storing the various parts of the medical waste. A spraying device is installed at the top of the treatment chamber for spraying disinfectant and / or sterilizing water into the treatment space.

2. The medical waste treatment system according to claim 1, characterized in that, An automatic door is provided on the side of the processing chamber; When the automatic door is open, the first robotic arm and the second robotic arm can extend out of the automatic door and grab the medical waste from the outside of the automatic door into the processing space.

3. The medical waste treatment system according to claim 1, characterized in that, Includes a hot air drying device, the hot air drying device comprising: A fan module is installed at the top of the processing chamber and is used to blow air into the processing space during operation; A heating module is located on the air inlet side of the fan module and is used to generate heat to heat the air on the air inlet side.

4. The medical waste treatment system according to claim 3, characterized in that, The hot air drying device also includes a filter module disposed on the air inlet side of the fan module, for filtering impurities in the air flowing to the fan module; And / or, the front and rear sides of the fan of the fan module are respectively provided with protective structures, and the protective structures are any one or more of the filter screen and protective grille.

5. The medical waste treatment system according to claim 1, characterized in that, The spraying device includes a spray arm disposed on the inner top of the treatment chamber, and a liquid supply mechanism disposed on the outer side of the treatment chamber, the liquid supply mechanism including: Disinfectant container, used to store disinfectant; A water container for storing water, which is equipped with an ultraviolet lamp inside to kill bacteria in the water inside the water container; A reversing valve is connected to the disinfectant container and the water container, respectively; A liquid pump, connected between the reversing valve and the spray arm, is used to pump disinfectant or sterilizing water from the disinfectant container or the water container to the spray arm through the connection of the reversing valve.

6. The medical waste treatment system according to claim 5, characterized in that, The spray arm is provided with a rotating shaft, and the spray arm is rotatably mounted on the top of the treatment chamber via the rotating shaft. Inside the rotating shaft, the spray arm is provided with a spiral flow channel, which is used to make the spray arm rotate around the axis of the rotating shaft under the action of the fluid when the liquid pump is running. The spray arm is provided with a plurality of spray holes arranged along the length of the spray arm; The rotating shaft is connected to the middle of the spray arm, and the shape of the spray arm gradually tapers from the middle to both ends.

7. The medical waste treatment system according to claim 1, characterized in that, The gripping device includes a mechanical base; The first robotic arm and the second robotic arm are both mounted on the mechanical base; At the ends of the first robotic arm and the second robotic arm, gripper mechanisms are respectively provided, and the gripper mechanisms include: A gripper mount is installed at the end of the first robotic arm and the second robotic arm; Two symmetrically arranged gear arms, each gear arm including a gear portion hinged to the gripper seat and a swing arm portion extending from the gear portion; Two symmetrically arranged gripper bars, the distal ends of which form gripper heads for grasping the medical waste, the proximal ends of which are hinged to the distal ends of the swing arm, and the proximal and middle parts of which are respectively connected to the gripper seat via hinged connecting rods; A gripper driver, disposed on the gripper seat, is used to simultaneously drive two symmetrically arranged gear arms to swing relative to or opposite to each other.

8. The medical waste treatment system according to claim 1, characterized in that, The plurality of storage containers include a sharps box, which is located adjacent to the cutting device and is used to store the infusion needle of the infusion bag and the needle tip of the syringe. The sharps box is provided with a compartment door for closing the opening of the sharps box. The processing chamber is equipped with a lower partition; The processing space is formed above the lower partition, and the gripping device, the shearing device, and the spraying device are all located within the processing space; A waste recycling space is formed below the lower partition, and multiple infectious waste bins are provided in the waste recycling space.

9. The medical waste treatment system according to any one of claims 1 to 8, characterized in that, The shearing device includes: The third robotic arm; A scissor mechanism is disposed at the end of the third robotic arm, and the scissor mechanism includes: A linkage drive mechanism is located at the end of the third robotic arm; The first and second cutter bodies, which are symmetrically arranged, are mounted on the linkage drive mechanism and are used to move synchronously in opposite or opposite directions under the drive of the linkage drive mechanism.

10. The medical waste treatment system according to claim 9, characterized in that, The end of the third robotic arm is also equipped with a high-pressure spraying device for high-pressure spraying disinfectant. The nozzle of the high-pressure injection device is oriented toward the symmetrical center line of the first and second cutter bodies; When the first blade and the second blade are close together and closed, the high-pressure spraying device is used to spray disinfectant at the closed area of ​​the first blade and the second blade; When the first and second blades are far apart, the high-pressure spraying device is used to locally spray disinfectant onto the inner wall of the processing chamber.