Chemotherapy drug waste collecting device

CN224603779UActive Publication Date: 2026-08-07BEIJING SHIJITAN HOSPITAL CAPITAL MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING SHIJITAN HOSPITAL CAPITAL MEDICAL UNIVERSITY
Filing Date
2025-07-23
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

腐败产生的异味气体会弥漫整个桶内,当开盖投放新废物时,这些积聚的异味会集中涌出,医护人员在投放废弃物时,不可避免地需要接近桶口,该区域持续的高浓度异味残留会直接作用于操作者,长期暴露于刺激性异味气体可能导致呼吸道不适、恶心、头痛,甚至影响情绪和专注力

Benefits of technology

1、借助翻转板将外壳内腔和存储桶进行分隔,将废弃物投入到外壳时,通过一号电机令翻转板在重力作用下废弃物会落入到存储桶内,再次通过一号电机令翻转板恢复到起始位置,进而降低异味堆积于上方空间,可降低异味对医护人员影响,保证医护人员的身体健康。

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Abstract

The application relates to the field of medical devices, in particular to a chemotherapy drug waste collecting device, which comprises a base, the top of the base is provided with a storage barrel, the top of the base is detachably connected with a shell, the surface of the storage barrel is in abutment with the inner wall of the shell, the top of the shell is provided with a sealing cover, the sealing cover can shield the top of the shell, the back of the shell is provided with a No. 1 motor, the output end of the No. 1 motor extends to the inside of the shell and is movably connected with the inner wall of the shell, the output end of the No. 1 motor and located in the inside of the shell is provided with a turnover plate, and the turnover plate is located above the storage barrel; the turnover plate separates the inside cavity of the shell and the storage barrel; when the waste is put into the shell, the turnover plate is driven by the No. 1 motor to make the waste fall into the storage barrel under the action of gravity; the turnover plate is driven by the No. 1 motor to return to the initial position, thus reducing the accumulation of peculiar smell in the upper space, reducing the influence of peculiar smell on medical staff and guaranteeing the health of the medical staff.
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Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a collection device for chemotherapy drug waste. Background Technology

[0002] Chemotherapy waste refers to various pollutants containing cytotoxic drugs generated during cancer treatment. It must be strictly treated in accordance with the regulations for high-risk medical waste. Direct pollutants include medical equipment that comes into contact with chemotherapy drugs, such as syringes, infusion sets, medicine bottles, and ampoules.

[0003] Odor emission is a widespread and serious problem. Chemotherapy drugs such as methotrexate and cyclophosphamide contain sulfur and nitrogen compounds, which decompose in sealed containers to produce volatile gases such as hydrogen sulfide and ammonia. Common medical waste bins typically use a foot-operated or manually operated flip-top design, essentially an open bin with a lid that opens and closes manually. When closed, the lid partially prevents odors from spreading upwards, leaving newly added waste in the same enclosed space as the already decomposing liquid waste at the bottom. The odor produced by decomposition permeates the entire bin. When new waste is added, this accumulated odor is released in a concentrated burst. Healthcare workers inevitably need to approach the bin opening when disposing of waste, and the persistently high concentration of odor residue in this area directly affects them. Long-term exposure to these irritating odors can lead to respiratory discomfort, nausea, headaches, and even affect mood and concentration. Utility Model Content

[0004] This application provides a collection device for chemotherapy drug waste to address the problem that inventors recognize common medical waste bins are typically foot-operated or manually operated flip-top bins. These are essentially open bins with a lid added, opened and closed manually. When closed, the lid partially prevents odors from spreading upwards, but newly added waste is in the same enclosed space as the already decomposed liquid waste at the bottom. The odor produced by decomposition permeates the entire bin. When new waste is added, this accumulated odor is released in a concentrated burst. Healthcare workers inevitably need to approach the bin opening when disposing of waste, and the persistent high concentration of odor residue in this area directly affects them. Long-term exposure to these irritating odors can lead to respiratory discomfort, nausea, headaches, and even affect mood and concentration.

[0005] This application provides a collection device for chemotherapy drug waste, including a base, a storage tank on the top of the base, a housing detachably connected to the top of the base, the surface of the storage tank abutting against the inner wall of the housing, a sealing cover on the top of the housing to cover the top of the housing, a No. 1 motor on the back of the housing, the output end of the No. 1 motor extending into the interior of the housing and movably connected to the inner wall of the housing, and a flip plate located at the output end of the No. 1 motor and inside the housing, above the storage tank.

[0006] In any of the above technical solutions, a baffle is further provided on the top of the outer shell, a second motor is provided on the back of the baffle, the output end of the second motor extends to the outside of the baffle and connects to the surface of the sealing cover, an infrared sensor is provided inside the sealing cover, a controller is provided inside the outer shell, and the first motor, the second motor and the infrared sensor are all electrically connected to the controller.

[0007] In any of the above technical solutions, further, a liquid storage chamber is provided inside the outer shell, a liquid pump is provided inside the outer shell, an inlet pipe is provided at the input end of the liquid pump, the other end of the inlet pipe extends into the interior of the liquid storage chamber, a drain pipe is provided at the output end of the liquid pump, the other end of the drain pipe passes through the outer shell and the sealing cover and extends into the inner cavity of the outer shell to connect to a nozzle, and the liquid pump is electrically connected to the controller.

[0008] In any of the above technical solutions, a timer is further provided inside the housing, and the timer is electrically connected to the controller.

[0009] In any of the above technical solutions, a battery is further provided inside the housing, which is used to power the No. 1 motor, the No. 2 motor, the liquid pump, the controller, the infrared sensor, the timer, and the controller.

[0010] In any of the above technical solutions, the surface of the outer casing is further provided with a liquid level observation window.

[0011] In any of the above technical solutions, the sealing cover is further provided with a perforation inside, and an adsorption pad is provided inside the perforation.

[0012] In any of the above technical solutions, the bottom of the base is further provided with an anti-slip pad.

[0013] In any of the above technical solutions, further, an injection tube is provided inside the outer shell, one end of the injection tube is connected to the liquid storage cavity, and the other end of the injection tube extends to the outside of the outer shell.

[0014] In any of the above technical solutions, the flip plate further includes an open shell and adsorbent particles, the interior of the open shell has a connected cavity and an opening, and the adsorbent particles fill the interior of the cavity.

[0015] The main benefits of this application are: 1. The inner cavity of the outer shell and the storage bucket are separated by a flip plate. When waste is put into the outer shell, the flip plate is driven by motor 1, and the waste will fall into the storage bucket under the action of gravity. Motor 1 will then drive the flip plate back to the starting position, thereby reducing the accumulation of odor in the upper space and reducing the impact of odor on medical staff, thus ensuring the health of medical staff.

[0016] 2. The infrared sensor is blocked by the hand or other parts of the body within a certain range. When the infrared sensor detects the blockage, it starts the No. 2 motor, thereby realizing the opening and closing of the sealing cover. Medical staff can dispose of waste without extra contact, reducing the probability of medical exposure for medical staff.

[0017] 3. Start the liquid pump to supply the disinfectant in the storage chamber to the nozzle through the inlet and outlet pipes. Spray the disinfectant into the inner cavity of the outer shell above the flip plate through the nozzle. This can kill some microorganisms in the spray range and temporarily slow down the putrefaction rate of the residual liquid in the inner cavity of the outer shell above the flip plate.

[0018] It should be understood that the foregoing general description and the following detailed description are for illustrative purposes only and do not necessarily limit the scope of this application. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this application. Furthermore, the specification and drawings serve to explain the principles of this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the collection device structure according to an embodiment of this application. Figure 1 (Front view sectional view); Figure 2 This is a schematic diagram of the collection device structure according to an embodiment of this application. Figure 2 (Front view sectional view); Figure 3 This is a schematic diagram (front view) of the collection device structure in an embodiment of this application.

[0021] icon: 100-Base; 101-Storage tank; 102-Outer shell; 103-Sealing cover; 104-Motor No. 1; 105-Flipping plate; 106-Baffle; 107-Motor No. 2; 108-Infrared sensor; 109-Controller; 110-Liquid storage chamber; 111-Liquid pump; 112-Inlet pipe; 113-Drain pipe; 114-Nozzle; 115-Timer; 116-Battery; 117-Liquid level observation window; 118-Perforation; 119-Adsorption pad; 120-Injection pipe; 121-Opening shell; 122-Adsorbent particles; 123-Anti-slip pad. Detailed Implementation

[0022] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0023] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] Please see Figure 1 , Figure 2 and Figure 3One or more embodiments provide a collection device for chemotherapy drug waste, including a base 100, a storage tank 101 disposed on the top of the base 100, a housing 102 detachably connected to the top of the base 100, the surface of the storage tank 101 abutting against the inner wall of the housing 102, a sealing cover 103 disposed on the top of the housing 102, the sealing cover 103 being able to cover the top of the housing 102, a first motor 104 disposed on the back of the housing 102, the output end of the first motor 104 extending into the interior of the housing 102 and movably connected to the inner wall of the housing 102, a flip plate 105 disposed at the output end of the first motor 104 and located inside the housing 102, the flip plate 105 being located above the storage tank 101.

[0027] In this embodiment, the base 100 and the storage tank 101 can be an integral structure, while the base 100, the storage tank 101, and the outer shell 102 are connected by a detachable structure. The connection can be achieved through friction, the elasticity of the rubber pad, or the gravity of the outer shell 102. This detachable design facilitates subsequent disinfection and cleaning of the storage tank 101. The inner cavity of the outer shell 102 and the storage tank 101 are separated by a flip plate 105. When the sealing cover 103 is opened and waste is thrown into the outer shell 102, the flip plate 105, driven by a motor 104, will cause the waste to fall into the storage tank under gravity. Inside the storage bin 101, the flip plate 105 is returned to its initial position by motor 104, thereby reducing the accumulation of odor in the upper space and minimizing the impact of odor on medical staff, ensuring their health. Waste includes medical equipment such as infusion sets and medicine bottles. This device can collect waste centrally or set up multiple collection devices to collect medical equipment separately. It should also be noted that this application is not only applicable to the collection of chemotherapy drug waste, but can also be used for other medical waste or domestic waste depending on the placement location, all of which fall within the protection scope of this application.

[0028] Please see Figure 1 , Figure 2 and Figure 3 In some embodiments, a baffle 106 is provided on the top of the housing 102, and a second motor 107 is provided on the back of the baffle 106. The output end of the second motor 107 extends to the outside of the baffle 106 and connects to the surface of the sealing cover 103. An infrared sensor 108 is provided inside the sealing cover 103, and a controller 109 is provided inside the housing 102. The first motor 104, the second motor 107, and the infrared sensor 108 are all electrically connected to the controller 109.

[0029] In this embodiment, the infrared sensor 108 is blocked by the hand or other parts within a certain range. When the infrared sensor 108 senses the blockage, the second motor 107 is started, thereby realizing the opening and closing action of the sealing cover 103. Medical staff can dispose of waste without extra contact, reducing the probability of medical exposure for medical staff.

[0030] Please see Figure 1 , Figure 2 and Figure 3 In some embodiments, a liquid storage chamber 110 is provided inside the outer casing 102, and a liquid pump 111 is provided inside the outer casing 102. An inlet pipe 112 is provided at the input end of the liquid pump 111, and the other end of the inlet pipe 112 extends into the interior of the liquid storage chamber 110. A drain pipe 113 is provided at the output end of the liquid pump 111, and the other end of the drain pipe 113 passes through the outer casing 102 and the sealing cover 103 and extends into the inner cavity of the outer casing 102 to connect to a nozzle 114. The liquid pump 111 is electrically connected to the controller 109. A liquid level observation window 117 is provided on the surface of the outer casing 102. An injection pipe 120 is provided inside the outer casing 102. One end of the injection pipe 120 is connected to the liquid storage chamber 110, and the other end of the injection pipe 120 extends to the outside of the outer casing 102.

[0031] In this embodiment, the liquid pump 111 is activated to supply disinfectant from the storage chamber 110 to the nozzle 114 through the inlet pipe 112 and the outlet pipe 113. The nozzle 114 sprays disinfectant onto the inner cavity of the outer shell 102 and above the flip plate 105, which can kill some microorganisms within the spray range and temporarily slow down the putrefaction rate of the residual liquid in the inner cavity of the outer shell 102 and above the flip plate 105. The liquid level observation window 117 is useful for observing the liquid level in the storage chamber 110, and the injection pipe 120 is useful for injecting liquid into the storage chamber 110. It should be noted that the outlet pipe 113, located outside the sealing cover 103 and the outer shell 102, adopts a retractable structure such as a corrugated pipe or an elastic pipe.

[0032] Please see Figure 1 , Figure 2 and Figure 3 In some embodiments, a timer 115 is provided inside the housing 102. The timer 115 is electrically connected to the controller 109. A battery 116 is provided inside the housing 102. The battery 116 is used to power the first motor 104, the second motor 107, the liquid pump 111, the controller 109, the infrared sensor 108, the timer 115, and the controller 109.

[0033] In this embodiment, the operating time of motor 104, motor 107, and pump 111 can be controlled by setting timer 115. With a fixed rotational speed of motor 104, the rotation angle of the tilting plate 105 driven by motor 104 can be determined by monitoring the operating time of motor 104 through timer 115. Presetting the single operating time of motor 104 through timer 115 allows for monitoring of the rotation angle of the tilting plate 105. Timer 115 counts the time it takes for motor 104 to rotate the tilting plate 105 to the preset angle. When the preset time is reached, motor 104 reverses its direction until the tilting plate 105 returns to its initial position. Similarly, with a fixed rotational speed of motor 107, the rotation angle of the sealing cover 103 driven by motor 107 can be determined by monitoring the operating time of motor 107 through timer 115. The timer 115 presets the single working time of the second motor 107 to monitor the rotation angle of the sealing cover 103. At the same time, the timer 115 monitors the time it takes for the second motor 107 to rotate the sealing cover 103 to the preset angle. After the preset time is reached, the second motor 107 is turned in the opposite direction until the sealing cover 103 returns to the starting position. With the power of the liquid pump 111 fixed, the timer 115 monitors the working time of the liquid pump 111 to know the outflow of liquid from the storage chamber 110 through the inlet pipe 112 and the outlet pipe 113, which reduces resource waste while ensuring the disinfection spraying effect. The battery 116 can power the first motor 104, the second motor 107, the liquid pump 111, the controller 109, the infrared sensor 108, the timer 115, and the controller 109. The battery 116 can be charged by opening a charging port or adding a power cord.

[0034] It should be noted that the specific models and specifications of battery 116, motor 104, motor 107, liquid pump 111, controller 109, infrared sensor 108, timer 115, and controller 109 in this disclosure need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here. Its power supply and its principle are clear to those skilled in the art, and will not be described in detail here. The connection and installation of its various parts and the signal transmission principle are well known technologies in this field. Please see Figure 1 , Figure 2 and Figure 3 In some embodiments, the sealing cover 103 has a perforation 118 inside, and an adsorption pad 119 is provided inside the perforation 118. The bottom of the base 100 is provided with an anti-slip pad 123. The flip plate 105 includes an opening shell 121 and adsorption particles 122. The opening shell 121 has a cavity and an opening inside, and the adsorption particles 122 fill the cavity.

[0035] In this embodiment, the odor located below the flip plate 105 can pass through the opening and cavity, and contact the adsorption particles 122 to adsorb the odor. As the gas spreads, it can pass through the perforation 118, and the odor gas is adsorbed by the adsorption pad 119. The dual adsorption effect of the adsorption particles 122 and the adsorption pad 119 reduces the odor caused by temperature accumulation in the sealed environment of the collection device, and also reduces the odor leakage. The anti-slip pad 123 increases the friction between the base 100 and the ground, thereby reducing the probability of misalignment of the collection device. The interior of the base 100 is detachable.

[0036] Specifically, the working principle of the chemotherapy drug waste collection device provided in this application is as follows: Insert the outer casing 102 into the base 100 while the storage bucket 101 is inside the outer casing 102, and then place the assembled collection device in a suitable position. Medical staff can block the infrared sensor 108 with their hands or other parts within a certain range. When the infrared sensor 108 detects the blockage, it will start the second motor 107, thereby opening and closing the sealing cover 103, and enabling medical staff to complete the disposal of waste. When motor 104 is started, the waste will fall into storage bin 101 under the action of gravity. When the preset time of timer 115 is reached, motor 104 is started again to reverse the operation and return the flip plate 105 to the starting position. The liquid pump 111 is started to supply the disinfectant in the storage chamber 110 to the nozzle 114 through the inlet pipe 112 and the outlet pipe 113. The disinfectant is sprayed into the inner cavity of the outer shell 102 and above the flip plate 105 through the nozzle 114, which can kill some microorganisms in the spray range and temporarily slow down the putrefaction rate of the residual liquid in the inner cavity of the outer shell 102 and above the flip plate 105. Odors located below the flip plate 105 can pass through the openings and cavities and come into contact with the adsorption particles 122 to adsorb the odors. As the gas spreads, it can pass through the perforations 118, and the odor gas is adsorbed by the adsorption pad 119. The dual adsorption effect of the adsorption particles 122 and the adsorption pad 119 reduces the occurrence of odors caused by temperature accumulation in the sealed environment of the collection device, while reducing the outflow of odors.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A collection device for chemotherapy drug waste, characterized in that, The device includes a base, a storage tank on top of the base, and a shell detachably connected to the top of the base. The surface of the storage tank abuts against the inner wall of the shell. A sealing cover is provided on the top of the shell to cover the top of the shell. A motor is provided on the back of the shell, and the output end of the motor extends into the interior of the shell and is movably connected to the inner wall of the shell. A flip plate is provided at the output end of the motor and inside the shell, and the flip plate is located above the storage tank.

2. The chemotherapy drug waste collection device according to claim 1, characterized in that, A baffle is provided on the top of the outer casing, and a second motor is provided on the back of the baffle. The output end of the second motor extends to the outside of the baffle and connects to the surface of the sealing cover. An infrared sensor is provided inside the sealing cover, and a controller is provided inside the outer casing. The first motor, the second motor, and the infrared sensor are all electrically connected to the controller.

3. The chemotherapy drug waste collection device according to claim 2, characterized in that, The housing has a liquid storage chamber inside, and a liquid pump is installed inside the housing. The input end of the liquid pump is provided with a liquid inlet pipe, and the other end of the liquid inlet pipe extends into the liquid storage chamber. The output end of the liquid pump is provided with a liquid outlet pipe, and the other end of the liquid outlet pipe passes through the housing and the sealing cover and extends into the inner cavity of the housing to connect to a nozzle. The liquid pump is electrically connected to the controller.

4. A collection device for chemotherapy drug waste according to claim 3, characterized in that, A timer is installed inside the housing, and the timer is electrically connected to the controller.

5. A collection device for chemotherapy drug waste according to claim 4, characterized in that, The housing contains a battery that powers the first motor, the second motor, the liquid pump, the controller, the infrared sensor, the timer, and the controller.

6. A collection device for chemotherapy drug waste according to claim 3, characterized in that, The surface of the outer casing is provided with a liquid level observation window.

7. A collection device for chemotherapy drug waste according to claim 2, characterized in that, The sealing cap has a perforation inside, and an adsorption pad is placed inside the perforation.

8. A collection device for chemotherapy drug waste according to claim 1, characterized in that, The base is equipped with an anti-slip pad at the bottom.

9. A collection device for chemotherapy drug waste according to claim 3, characterized in that, An injection tube is provided inside the outer casing. One end of the injection tube is connected to the liquid storage chamber, and the other end of the injection tube extends to the outside of the outer casing.

10. A collection device for chemotherapy drug waste according to claim 1, characterized in that, The flip plate includes a perforated shell and adsorbent particles. The perforated shell has a cavity and openings that are connected inside, and the adsorbent particles fill the cavity.