A medical instrument sterilizer

By introducing an automated cleaning mechanism into the boiling sterilizer, the problem of drain pipe blockage caused by the accumulation of impurities in the filter screen is solved, achieving efficient cleaning without manual intervention and improving the convenience and efficiency of equipment maintenance.

CN224331254UActive Publication Date: 2026-06-09乔晨

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
乔晨
Filing Date
2025-05-15
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing boiling sterilizers are prone to accumulating impurities on the filter screen after use, which can clog the drain pipe and require manual cleaning. This is labor-intensive, prolongs equipment downtime, and reduces the convenience and efficiency of maintenance.

Method used

A filter box with a cleaning mechanism was designed. Through the cooperation of a metal block, a proximity switch and a controller, automated control is achieved. The cleaning mechanism is driven to clean the impurities on the filter screen during the drainage process. The cleaning brush is used for efficient cleaning, avoiding manual intervention.

Benefits of technology

It achieves automated cleaning without human intervention, saving manpower, reducing equipment downtime, and improving maintenance convenience and work efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224331254U_ABST
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Abstract

This utility model provides a medical device sterilizer, relating to the field of medical device sterilization equipment, comprising: a boiling sterilizer body, with an inner tank installed on the upper side inside the boiling sterilizer body; a rectangular water outlet is opened on the bottom end face of the inner tank, and a filter box is fixedly connected to the bottom end face of the inner tank outside the rectangular water outlet; a cleaning mechanism is provided inside the filter box. This utility model, through the arrangement of a metal block, a proximity switch, and a cleaning mechanism, achieves automatic and efficient cleaning of impurities accumulated on the surface of the filter screen. This process does not require manual intervention with tools such as brushes, saving manpower and simultaneously cleaning the filter screen during drainage, improving the convenience and efficiency of sterilizer maintenance; it solves the problem that currently, when boiling sterilizers require manual cleaning of the filter screen surface after prolonged use, reducing the convenience and efficiency of boiling sterilizer maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of medical device disinfection equipment technology, and in particular to a medical device disinfection device. Background Technology

[0002] In the field of medical device sterilization, boiling sterilizers are widely used in many medical institutions and small clinics due to their simple operation, low cost, and effectiveness in killing common pathogenic microorganisms. The sterilization principle of a boiling sterilizer is as follows: by placing medical devices in boiling water inside the sterilizer for a certain period of time, the structure of pathogens such as bacteria and viruses is quickly destroyed, achieving the purpose of sterilization. It is a basic and practical sterilization device.

[0003] During use, boiling sterilizers often contain a large amount of impurities such as tissue debris and dirt left on the surface of medical devices in the water after use. To prevent these impurities from clogging the drain pipe, current boiling sterilizers usually have a filter screen installed at the inlet of the drain pipe. Although the filter screen has a good filtration effect and can separate impurities from the water, it is easy for a large amount of impurities to accumulate on its surface after prolonged use. This will affect the normal drainage of the boiling sterilizer. Cleaning the debris accumulated on the filter screen requires manual cleaning with tools such as brushes, which is not only labor-intensive but also prolongs the equipment downtime, greatly reducing the convenience and efficiency of boiling sterilizer maintenance. Utility Model Content

[0004] This utility model relates to a medical device sterilizer, which solves the problem that current boiling sterilizers often install a filter screen at the water inlet end of the drain pipe to prevent impurities from clogging the drain pipe during drainage. However, after long-term use, impurities easily accumulate on the surface of the filter screen, affecting drainage. Moreover, cleaning requires manual cleaning with tools, which not only consumes manpower but also prolongs equipment downtime, reducing the convenience and efficiency of boiling sterilizer maintenance.

[0005] In a first aspect, this utility model provides a medical device sterilizer, specifically comprising: a boiling sterilizer body, wherein an inner liner is installed on the upper side of the inner liner, and an electric heating element and a U-shaped protective plate are installed on the bottom surface of the inner liner; a rectangular water outlet is provided on the bottom surface of the inner liner, and a filter box is fixedly connected to the bottom surface of the inner liner outside the rectangular water outlet; a rectangular opening is provided on the rear end surface of the filter box, and a sealing plate is connected to the rear end surface of the filter box behind the rectangular opening by an internal hexagonal bolt; a cleaning mechanism is provided inside the filter box.

[0006] Furthermore, a drain pipe is fixedly connected to the water outlet at the bottom of the filter box, and the right end of the drain pipe penetrates the right side wall of the main body of the boiling sterilizer. A valve is installed at the right end of the drain pipe.

[0007] Furthermore, a metal block is fixedly connected to the bottom end of the valve handle, and an L-shaped handle is fixedly connected to the top of the valve handle; a proximity switch and a controller are installed on the right side of the main body of the boiling sterilizer, and the proximity switch is located below the metal block.

[0008] Furthermore, a threaded connecting block is fixedly connected to the rear side of each of the left and right end faces of the filter box, and each threaded connecting block has a threaded through hole on its rear end face for threaded connection with an internal hexagon bolt; an inspection port is provided on the rear end face of the boiling sterilizer body, and a door is rotatably connected to the rear end face of the boiling sterilizer body near the inspection port via a rotating shaft.

[0009] Furthermore, a partition is fixedly installed on the lower side of the inside of the filter box, and a filter screen is fixedly embedded inside the partition. A rectangular opening is provided on the rear end face of the filter box, and the bottom end face of the rectangular opening is flush with the top end face of the filter screen. A frame-shaped sealing gasket is pasted on the rear end face of the filter box outside the rectangular opening.

[0010] Furthermore, a rectangular feed inlet is provided on the rear end face of the sealing plate, and the size of the rectangular feed inlet is equal to the size of the rectangular through-hole. An L-shaped collection shell is fixedly connected to the rear end face of the sealing plate outside the rectangular feed inlet.

[0011] Furthermore, the cleaning mechanism includes rotating rods and a drive motor. There are two rotating rods, which are rotatably connected to the filter box. Each rotating rod has a synchronous pulley fixedly installed on its exterior, and a synchronous belt is driven between every two adjacent synchronous pulleys. Sweeping brushes are fixedly connected to the outer circumference of the two synchronous belts, and the bristles of the sweeping brushes can make close contact with the surface of the filter screen. The drive motor is installed on the left end face of the filter box, and the shaft of the drive motor is fixedly connected to one of the rotating rods on the front side. The drive motor rotates counterclockwise.

[0012] This utility model provides a medical device sterilizer, which has the following beneficial effects:

[0013] In this invention, the combination of a metal block, a proximity switch, and a cleaning mechanism allows the metal block to move away from the sensing area above the proximity switch when the L-shaped handle is rotated 90 degrees clockwise during wastewater discharge. The controller then starts the drive motor, which in turn drives the cleaning mechanism to operate automatically, efficiently cleaning the impurities accumulated on the surface of the filter screen. This process requires no manual intervention using tools such as brushes, saving manpower and enabling simultaneous cleaning of the filter screen during drainage. This significantly reduces equipment downtime and greatly improves the convenience and efficiency of the sterilizer's maintenance.

[0014] By combining a metal block, a proximity switch, and a controller, and utilizing the proximity switch's sensitive response to changes in the metal block's position, an automated control closed loop is constructed. When the metal block triggers a change in the sensing signal, the proximity switch transmits real-time data to the controller. After logical processing, the controller precisely drives the cleaning mechanism to operate automatically. Thus, when the cleaning mechanism needs to be operated, no manual operation is required, effectively improving the automation level of this sterilizer and optimizing equipment operating efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the accompanying drawings will be briefly described below.

[0016] In the attached diagram:

[0017] Figure 1 A structural schematic diagram of the overall structure of this application is shown;

[0018] Figure 2 A structural schematic diagram of this application from a rear view is shown;

[0019] Figure 3 This diagram illustrates the structure of this application in its disassembled state.

[0020] Figure 4 This paper shows a schematic diagram of the disassembled filter housing and sealing plate of this application.

[0021] Figure 5 This is a schematic diagram showing a partial cross-sectional view of the filter housing of this application;

[0022] Figure 6 A schematic diagram of the filter screen and cleaning mechanism of this application is shown;

[0023] Figure 7 This paper shows a partial cross-sectional structural schematic diagram of the sealing plate and the L-shaped collection housing of this application;

[0024] Figure 8 This application shows Figure 1 A magnified structural diagram of part A in the middle.

[0025] List of reference numerals

[0026] 1. Boiling sterilizer body; 101. Inner tank; 102. Filter box; 103. Drain pipe; 104. Valve; 105. Metal block; 106. L-shaped handle; 107. Proximity switch; 108. Controller; 109. Electric heating element; 1010. I-shaped protective plate; 1011. Inspection port; 1012. Rectangular water outlet; 1013. Threaded connection block; 1014. Partition plate; 1015. Rectangular opening; 1016. Frame-shaped sealing gasket; 1017. Filter screen;

[0027] 2. Sealing plate; 201. L-shaped collection housing; 202. Socket head bolt; 203. Rectangular feed inlet;

[0028] 3. Sweeping mechanism; 301. Rotating rod; 302. Synchronous pulley; 303. Synchronous belt; 304. Sweeping brush; 305. Drive motor. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described 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.

[0030] Example 1: Please refer to Figures 1 to 8 :

[0031] This utility model proposes a medical device sterilizer, comprising: a boiling sterilizer body 1, an inner tank 101 installed on the upper side inside the boiling sterilizer body 1, and an electric heating element 109 and a U-shaped protective plate 1010 installed on the bottom surface of the inner tank 101; a rectangular water outlet 1012 is opened on the bottom surface of the inner tank 101, and a filter box 102 is fixedly connected to the bottom surface of the inner tank 101 outside the rectangular water outlet 1012; a rectangular opening 1015 is opened on the rear end surface of the filter box 102, and a sealing plate 2 is connected to the rear end surface of the filter box 102 behind the rectangular opening 1015 by an internal hexagonal bolt 202; a cleaning mechanism 3 is provided inside the filter box 102; the cleaning mechanism 3 is used to efficiently clean the impurities accumulated on the upper surface of the filter screen 1017, replacing manual cleaning.

[0032] A drain pipe 103 is fixedly connected to the bottom outlet of the filter box 102, and the right end of the drain pipe 103 penetrates the right side wall of the main body 1 of the boiling sterilizer. A valve 104 is installed at the right end of the drain pipe 103 for discharging wastewater after use in the inner tank 101.

[0033] A threaded connecting block 1013 is fixedly connected to the rear side of both ends of the filter box 102, and each threaded connecting block 1013 has a threaded through hole for threaded connection with the internal hex bolt 202 on its rear end face; an inspection port 1011 is provided on the rear end face of the boiling sterilizer body 1, and a door is rotatably connected to the rear end face of the boiling sterilizer body 1 near the inspection port 1011 via a rotating shaft. The setting of the inspection port 1011 facilitates the maintenance of the internal structure of the boiling sterilizer body 1.

[0034] A partition 1014 is fixedly installed on the lower side of the inside of the filter box 102, and a filter screen 1017 is fixedly embedded inside the partition 1014. A rectangular opening 1015 is opened on the rear end face of the filter box 102, and the bottom end face of the rectangular opening 1015 is flush with the top end face of the filter screen 1017. A frame-shaped sealing gasket 1016 is pasted on the outside of the rectangular opening 1015 on the rear end face of the filter box 102. When the sealing plate 2 is installed on the rear end face of the filter box 102, the rear side of the frame-shaped sealing gasket 1016 will be in close contact with the front end face of the sealing plate 2, thereby improving the sealing performance.

[0035] A rectangular feed inlet 203 is provided on the rear end face of the sealing plate 2, and the size of the rectangular feed inlet 203 is equal to the size of the rectangular through-hole 1015. An L-shaped collection housing 201 is fixedly connected to the rear end face of the sealing plate 2 outside the rectangular feed inlet 203 for collecting impurities swept by the sweeping mechanism 3.

[0036] The cleaning mechanism 3 includes two rotating rods 301 and a drive motor 305. The two rotating rods 301 are rotatably connected to the filter housing 102. Each rotating rod 301 has a synchronous pulley 302 fixedly mounted on its exterior. A synchronous belt 303 is connected between every two adjacent synchronous pulleys 302. Cleaning brushes 304 are fixedly connected to the outer surfaces of the two synchronous belts 303, and the bristles of the cleaning brushes 304 can make close contact with the upper surface of the filter screen 1017. The drive motor 305 is installed at the left end of the filter housing 102. The drive motor 305's shaft is fixedly connected to a front rotating rod 301; the drive motor 305 rotates counterclockwise; through the setting of the metal block 105, proximity switch 107 and cleaning mechanism 3, the cleaning mechanism 3 can be driven to run automatically, efficiently cleaning the impurities accumulated on the upper surface of the filter screen 1017. This process does not require manual intervention with tools such as brushes, which not only saves manpower, but also cleans the filter screen at the same time during drainage, thereby greatly reducing equipment downtime and significantly improving the convenience and efficiency of this sterilizer's maintenance.

[0037] Example 2, based on Example 1, such as Figure 1 and Figure 8As shown, a metal block 105 is fixedly connected to the bottom end of the handle of valve 104, and an L-shaped handle 106 is fixedly connected to the top of the handle of valve 104; a proximity switch 107 and a controller 108 are installed on the right side of the main body 1 of the boiling sterilizer, and the proximity switch 107 is located below the metal block 105; the proximity switch 107 and the drive motor 305 are both electrically connected to the controller 108; through the cooperation of the metal block 105, the proximity switch 107 and the controller 108, the proximity switch 107 is used to detect changes in the position of the metal block 105, and an automated control closed loop is constructed. When the metal block 105 triggers a change in the sensing signal, the proximity switch 107 transmits real-time data to the controller 108, which then processes the data and precisely drives the cleaning mechanism 3 to run automatically. Thus, when the cleaning mechanism 3 needs to be operated, no manual operation is required, which effectively improves the automation level of the sterilizer.

[0038] The working principle of this embodiment is as follows: When in use, purified water or distilled water is added to the inner liner 101, and then the medical device to be boiled and sterilized is placed in the sterilization basket. The sterilization basket is then placed inside the inner liner 101. Then, the electric heating element 109 is powered on, and the water is heated through the electric heating element 109. The medical device is sterilized by boiling water.

[0039] When sewage needs to be discharged, first rotate the L-shaped handle 106 clockwise by 90 degrees, so that the L-shaped handle 106 rotates the handle of valve 104 clockwise by 90 degrees, thereby opening valve 104. Then, the sewage inside the inner tank 101 enters the drain pipe 103 through the rectangular water outlet 1012, the rectangular water outlet 1012, and the mesh of the filter screen 1017, and is finally discharged through the outlet of valve 104. During the drainage process, the filter screen 1017 filters tissue debris, dirt and other impurities in the sewage to prevent impurities from clogging the drain pipe 103.

[0040] After rotating the L-shaped handle 106 clockwise by 90 degrees, the handle of the valve 104 will rotate clockwise by 90 degrees along with the metal block 105. At this time, the metal block 105 moves away from the sensing area above the proximity switch 107. Then, the proximity switch 107 transmits the signal that it can no longer sense the metal block 105 to the controller 108, which then starts the drive motor 305 and controls the shaft of the drive motor 305 to rotate counterclockwise (e.g., Figure 4As shown in the diagram, the front rotating rod 301 and the two front synchronous pulleys 302 rotate counterclockwise, which in turn drives the two synchronous belts 303 counterclockwise, thereby causing the sweeping brush 304 to rotate counterclockwise. The sweeping brush 304, rotating counterclockwise, sweeps the impurities accumulated on the upper surface of the filter screen 1017 backward, thus cleaning the impurities accumulated on the upper surface of the filter screen 1017. This cleaning does not require manual cleaning with brushes or other tools, saving manpower and allowing the filter screen to be cleaned simultaneously during drainage. Therefore, it greatly improves the convenience and efficiency of the maintenance of this sterilizer. The impurities swept backward enter the lower part of the L-shaped collection shell 201 through the rectangular inlet 1015 and the rectangular feed inlet 203, ultimately collecting the swept impurities.

[0041] The following points should be noted in this article:

[0042] 1. The accompanying drawings of this utility model only relate to the structures involved in this utility model; other structures can be referred to conventional designs.

[0043] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0044] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A medical device sterilizer, comprising: The main body (1) of the boiling sterilizer has an inner tank (101) installed on the upper side inside, and an electric heating tube (109) and a U-shaped protective plate (1010) are installed on the bottom surface of the inner tank (101); the inner tank (101) has a rectangular water outlet (1012) on the bottom surface, and a filter box (102) is fixedly connected to the bottom surface of the inner tank (101) outside the rectangular water outlet (1012). The filter box (102) has a rectangular opening (1015) on the rear end surface, and a sealing plate (2) is connected to the rear end surface of the filter box (102) behind the rectangular opening (1015) by an internal hexagonal bolt (202); a cleaning mechanism (3) is provided inside the filter box (102).

2. The medical device sterilizer according to claim 1, characterized in that: The bottom outlet of the filter box (102) is fixedly connected to a drain pipe (103), and the right end of the drain pipe (103) penetrates the right side wall of the boiling sterilizer body (1). A valve (104) is installed on the right end of the drain pipe (103).

3. A medical device sterilizer according to claim 2, characterized in that: A metal block (105) is fixedly connected to the bottom end of the handle of the valve (104), and an L-shaped handle (106) is fixedly connected to the top of the handle of the valve (104); a proximity switch (107) and a controller (108) are installed on the right side of the main body (1) of the boiling sterilizer, and the proximity switch (107) is located below the metal block (105).

4. A medical device sterilizer according to claim 1, characterized in that: The filter box (102) has a threaded connecting block (1013) fixedly connected to the rear side of both the left and right ends, and each threaded connecting block (1013) has a threaded through hole for threaded connection with the internal hex bolt (202) on its rear end face; the boiling sterilizer body (1) has an inspection port (1011) on its rear end face, and a door is rotatably connected to the rear end face of the boiling sterilizer body (1) near the inspection port (1011) via a rotating shaft.

5. A medical device sterilizer according to claim 1, characterized in that: A partition (1014) is fixedly installed on the lower side inside the filter box (102), and a filter screen (1017) is fixedly embedded inside the partition (1014). A rectangular opening (1015) is opened on the rear end face of the filter box (102), and the bottom end face inside the rectangular opening (1015) is flush with the upper end face of the filter screen (1017). A frame-shaped sealing gasket (1016) is pasted on the rear end face of the filter box (102) outside the rectangular opening (1015).

6. A medical device sterilizer according to claim 1, characterized in that: The sealing plate (2) has a rectangular feed inlet (203) on its rear end face, and the size of the rectangular feed inlet (203) is equal to the size of the rectangular through-hole (1015). An L-shaped collection shell (201) is fixedly connected to the rear end face of the sealing plate (2) outside the rectangular feed inlet (203).

7. A medical device sterilizer according to claim 5, characterized in that: The cleaning mechanism (3) includes a rotating rod (301) and a drive motor (305). There are two rotating rods (301), and the two rotating rods (301) are rotatably connected to the filter box (102). Each rotating rod (301) is fixedly installed with a synchronous pulley (302), and a synchronous belt (303) is connected between each pair of adjacent synchronous pulleys (302). The outer circumference of the two synchronous belts (303) is fixedly connected with a cleaning brush (304), and the bristles of the cleaning brush (304) can make close contact with the upper surface of the filter screen (1017). The drive motor (305) is installed on the left end face of the filter box (102), and the shaft of the drive motor (305) is fixedly connected to a rotating rod (301) on the front side. The drive motor (305) rotates counterclockwise.