Circulating hot air oven for sterilizing medical instruments

Abstract

The utility model relates to the field of medical apparatus and instruments, disclose a kind of circulating hot-air box for medical instrument disinfection, including box, the right side of the front side of box is fixedly connected with side plate, the left side of side plate is rotatably connected with lid by hinge, the left side of box interior is fixedly connected with four metal tubes, and four metal tubes are connected with disinfection screen between by supporting assembly, the left and right sides of box are both provided with round hole, two round holes are fixedly connected with pipeline, the inside of right side round hole is equipped with axial fan, the middle end of pipeline is inserted with filter screen, the inside of box is fixedly connected with heating pipe, in the utility model, airflow can be blown to different height disinfection screen, so as to guide hot air to flow through instrument more evenly, avoid airflow dead angle, improve the effect of disinfection, and make filter screen convenient to disassemble, so that staff can clean or replace it.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a circulating hot air box for sterilizing medical devices. Background Technology

[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, and materials that are used directly or indirectly on the human body, aiming to prevent, diagnose, treat, monitor, alleviate, or compensate for diseases or injuries. A circulating hot air chamber for medical device sterilization is a sterilization device specifically designed for high-temperature and dry-resistant items within these devices. It generates hot air through an electric heating element, which is then circulated within the chamber by a fan, uniformly heating the surface of the instruments to 120-180°C. This high temperature denatures microbial proteins and destroys nucleic acids, achieving sterilization. It is suitable for metal surgical instruments, glassware, etc. Compared to steam sterilization, it leaves no condensation residue and provides excellent drying, making it an important piece of equipment for ensuring instrument safety in hospital supply rooms and laboratories.

[0003] However, the current circulating hot air boxes for medical device sterilization have the following defects: First, the airflow is difficult to be evenly delivered to the sterilization mesh plates at different heights, which can easily create dead air zones and affect the sterilization effect; Second, the filter screen is inconvenient to disassemble, making it difficult for staff to clean or replace it.

[0004] In response to this technical problem, this application proposes a circulating hot air box for sterilizing medical devices. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a circulating hot air box for medical device disinfection. This box aims to allow airflow to be blown onto disinfection mesh plates at different heights, thereby guiding the hot air to flow more evenly across the instruments, avoiding dead air zones, improving the disinfection effect, and making the filter screen easy to disassemble, thus facilitating cleaning or replacement by staff.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A circulating hot air chamber for medical device sterilization includes a chamber body. A side plate is fixedly connected to the right side of the front of the chamber body. A cover is rotatably connected to the left side of the side plate via a hinge. Four metal pipes are fixedly connected to the left side of the chamber body. A sterilization mesh plate is connected between the four metal pipes through a support assembly, which supports the sterilization mesh plate. Circular holes are opened on both the left and right sides of the chamber body. A pipe is fixedly connected between two of the circular holes. An axial flow fan is installed inside the circular hole on the right side. A flow guiding assembly is provided inside the chamber body to guide the airflow. A filter screen is inserted into the middle of the pipe. A fixing assembly is provided on the top side of the middle end of the pipe to fix the filter screen inside the pipe. A heating tube is fixedly connected inside the chamber body.

[0008] Furthermore, the support assembly includes a metal rod fixedly connected inside the metal tube, and a plurality of rings are sleeved on the outer wall of the metal rod, with a support rod fixedly connected to the outer wall of the rings.

[0009] Furthermore, the end of the support rod is inserted into the bottom side of the disinfection mesh plate, the outer wall of the metal tube is provided with a sliding groove, and one side of the sliding groove is provided with multiple limiting grooves, and the support rod is engaged inside the limiting groove.

[0010] Furthermore, the flow guiding assembly includes two rotating rods rotatably connected between the housing and the side plate, with a flow guiding plate fixedly connected to the outer wall of the rotating rods, and multiple honeycomb holes opened inside the flow guiding plate.

[0011] Furthermore, a pulley is fixedly connected to the rear end of the rotating rod, and the two pulleys are connected by a belt. A protective shell is fixedly connected to the rear side of the housing, and the pulley is located inside the protective shell.

[0012] Furthermore, a motor is installed on the rear side of the protective shell, and the rear end of the rotating rod on the top side is fixedly connected to the drive end of the motor, while the rear end of the rotating rod is rotatably connected inside the protective shell.

[0013] Furthermore, the fixing component includes a retaining ring rotatably connected to the middle end of the pipe. Both the retaining ring and the middle end of the inner wall of the pipe are provided with annular grooves. The filter screen is engaged inside the annular grooves. Sealing rings are fixedly connected to the left and right sides of the retaining ring, and the sealing rings are engaged inside the middle end of the pipe.

[0014] Furthermore, a fixing block is fixedly connected to the middle of the outer wall of the pipe, a fixing plate is fixedly connected to the front side of the retaining ring, and buckle plates are connected to both sides of the fixing plate by torsion springs. Two buckle rods are fixedly connected to one side of the buckle plate, and the buckle rods are engaged inside the fixing block.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the top rotating rod is driven by a motor to rotate, and the guide plate is rotated by two pulleys connected by belts, thereby guiding the airflow blown by the axial flow fan. This allows the airflow to be blown onto the disinfection mesh plate at different heights, thus guiding the hot air to flow more evenly through the instruments, avoiding dead airflow corners, and improving the disinfection effect. The honeycomb holes serve to disperse the airflow and prevent excessive air pressure loss due to large-area obstruction.

[0017] 2. In this utility model, by rotating the retaining ring to the top side of the pipe, the top side of the retaining ring is inserted into the annular groove of the retaining ring, and the sealing ring is engaged in the pipe to improve the sealing between the retaining ring and the pipe. Then, the buckle plate is rotated to engage the buckle rod on the fixing block, and the buckle rod is pressed into the fixing block by the torsion spring, thereby fixing the retaining ring to the pipe. This makes it easy to disassemble the filter screen, so as to facilitate the staff to clean or replace it. Attached Figure Description

[0018] Figure 1 This is a perspective view of a circulating hot air box for sterilizing medical devices according to the present invention.

[0019] Figure 2 This is a rear view of a circulating hot air box for sterilizing medical devices according to the present invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of a circulating hot air box for medical device disinfection proposed in this utility model.

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a cross-sectional view of the casing of a circulating hot air box for sterilizing medical devices according to the present invention.

[0023] Figure 6 This is a schematic diagram of the filter structure of a circulating hot air box for medical device disinfection proposed in this utility model;

[0024] Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0025] Legend:

[0026] 1. Cabinet body; 2. Cabinet lid; 3. Side panel; 4. Pipe; 5. Clamping ring; 6. Protective shell; 7. Motor; 8. Metal pipe; 9. Disinfection mesh plate; 10. Heating tube; 11. Guide plate; 12. Axial flow fan; 13. Metal rod; 14. Ring; 15. Support rod; 16. Rotating rod; 17. Pulley; 18. Filter screen; 19. Fixing block; 20. Sealing ring; 21. Annular groove; 22. Fixing plate; 23. Buckle plate; 24. Buckle rod. Detailed Implementation

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

[0028] Reference Figure 1 , Figure 3 and Figure 6 This utility model provides an embodiment of a circulating hot air box for medical device disinfection, comprising a box body 1, a side plate 3 fixedly connected to the right side of the front of the box body 1, and a box cover 2 rotatably connected to the left side of the side plate 3 via a hinge. The box cover 2 is provided with an observation window to observe the disinfection status. Four metal pipes 8 are fixedly connected to the left side of the inside of the box body 1, and a disinfection mesh plate 9 is connected between the four metal pipes 8 via a support assembly. Medical devices are placed on the disinfection mesh plate 9. Circular holes are provided on both the left and right sides of the box body 1, and pipes 4 are fixedly connected between two circular holes. An axial flow fan 12 is installed inside the right circular hole, which blows airflow into the inside of the box body 1 and circulates the airflow back to the air inlet of the axial flow fan 12 through the pipes 4, thus recycling the airflow. A filter screen 18 is inserted into the middle of the pipe 4, and a heating pipe 10 is fixedly connected inside the box body 1 to heat the airflow. (See reference...) Figure 3 and Figure 4A metal rod 13 is fixedly connected inside the metal tube 8. Multiple rings 14 are fitted onto the outer wall of the metal rod 13. Support rods 15 are fixedly connected to the outer wall of the rings 14. The ends of the support rods 15 are inserted into the bottom side of the disinfection mesh plate 9. A sliding groove is formed on the outer wall of the metal tube 8, and multiple limiting grooves are formed on one side of the sliding groove. The support rods 15 are engaged inside the limiting grooves. By rotating the rings 14, the support rods 15 are rotated into the limiting grooves, thus engaging the support rods 15 and supporting the disinfection mesh plate 9. Matching support rods 1 are formed at the four corners of the bottom side of the disinfection mesh plate 9. 5. Insert the support rod 15 into the groove inside the sterilization mesh plate 9 so that it can be inserted into the bottom side of the sterilization mesh plate 9 for support. At the same time, the support rod 15 can be disengaged from the limiting groove and rotated into the sliding groove by rotating the ring 14. Then, slide the support rod 15 to rotate it into the limiting groove at other heights. Repeat the upward movement to rotate the support rod 15 into the limiting groove at other heights and engage it in the limiting groove, thereby adjusting the height of the support rod 15 and thus the height of the sterilization mesh plate 9, so as to adapt to medical devices of different sizes and make full use of the internal space of the box 1.

[0029] Reference Figure 1 , Figure 3 and Figure 5 Two rotating rods 16 are rotatably connected between the housing 1 and the side plate 3. A guide plate 11 is fixedly connected to the outer wall of the rotating rod 16. Multiple honeycomb holes are formed inside the guide plate 11. A pulley 17 is fixedly connected to the rear end of the rotating rod 16, and the two pulleys 17 are connected by a belt. A protective shell 6 is fixedly connected to the rear side of the housing 1. The pulley 17 is located inside the protective shell 6. A motor 7 is installed on the rear side of the protective shell 6. The rear end of the top rotating rod 16 is fixedly connected to the drive end of the motor 7, and the rear end of the rotating rod 16 is rotatably connected inside the protective shell 6. The motor 7 drives the top rotating rod 16 to rotate, and the two pulleys 17 connected by belts cause the guide plate 11 to rotate, thereby guiding the airflow blown by the axial flow fan 12. This allows the airflow to be blown onto the disinfection mesh plates 9 at different heights, thus guiding the hot air to flow more evenly through the instruments, avoiding dead air zones, and improving the disinfection effect. The honeycomb holes disperse the airflow and prevent excessive air pressure loss due to large-area obstruction. (Refer to...) Figure 6 and Figure 7A retaining ring 5 is rotatably connected to the middle of pipe 4. Both the retaining ring 5 and the middle of the inner wall of pipe 4 have annular grooves 21. A filter screen 18 is engaged inside the annular grooves 21. Sealing rings 20 are fixedly connected to both sides of the retaining ring 5, and are engaged inside the middle of pipe 4. The sealing rings 20 are made of high-temperature resistant silicone. A fixing block 19 is fixedly connected to the middle of the outer wall of pipe 4. A fixing plate 22 is fixedly connected to the front of the retaining ring 5. Buckling plates 23 are connected to both sides of the fixing plate 22 via torsion springs. Two buckling rods 24 are fixedly connected to one side of the buckling plate 23, and are engaged inside the fixing block 19. The filter screen 18 is then... The filter screen 18 is initially installed in the pipe 4 by inserting it into the annular groove 21 located in the middle of the inner wall of the pipe 4. Then, the retaining ring 5 is rotated to the top side of the pipe 4, so that the top side of the retaining ring 5 is inserted into the annular groove 21 of the retaining ring 5. At the same time, the sealing ring 20 is engaged in the pipe 4 to improve the sealing between the retaining ring 5 and the pipe 4. Then, the retaining plate 23 is rotated to engage the retaining rod 24 on the fixing block 19, and the retaining rod 24 is pressed against the fixing block 19 by the torsion spring, thereby fixing the retaining ring 5 to the pipe 4. This makes it easy to disassemble the filter screen 18, so that it is convenient for the staff to clean or replace it.

[0030] Working principle: First, adjust the distance between each layer of sterilization mesh plate 9 according to the size of the medical device. When adjustment is needed, rotate the ring 14 to disengage the support rod 15 from the limiting groove and rotate it into the sliding groove. Then slide the support rod 15 to rotate it into the limiting groove at another height. Repeat the upward movement to rotate the support rod 15 into the limiting groove at another height and lock it in the limiting groove, thereby adjusting the height of the support rod 15. Then insert the sterilization mesh plate 9 onto the support rod 15, and place the medical device on the sterilization mesh plate 9. After that, close the box cover 2, and then start the heating tube 10 and the axial flow fan 12. The axial flow fan 12 blows air into the inside of the box 1, and the air is circulated back to the air inlet of the axial flow fan 12 through the pipe 4, thus recycling it. At the same time, the heating tube 10... The airflow is heated, and the motor 7 is started to drive the rotating rod 16 on the top side to rotate. The guide plate 11 is rotated through two pulleys 17 connected by belts, thereby guiding the airflow blown by the axial flow fan 12. This allows the airflow to be blown onto the disinfection mesh plate 9 at different heights, thus guiding the hot air to flow more evenly through the instruments, avoiding dead airflow corners, and improving the disinfection effect. The filter screen 18 in the pipe 4 will filter impurities to prevent them from contaminating the medical instruments. When it is necessary to clean or replace the filter screen 18, simply rotate the buckle plate 23 to disengage the buckle rod 24 from the fixing block 19, then rotate the buckle ring 5 to disengage it from the top side of the pipe 4, and then pull the filter screen 18 out of the annular groove 21 on the pipe 4. The installation steps are the reverse of the above, and will not be repeated here.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circulating hot air box for sterilizing medical devices, characterized in that: The box includes a housing (1), a side plate (3) is fixedly connected to the right side of the front side of the housing (1), a lid (2) is rotatably connected to the left side of the side plate (3) via a hinge, four metal pipes (8) are fixedly connected to the left side inside the housing (1), a disinfection mesh plate (9) is connected between the four metal pipes (8) via a support assembly, the disinfection mesh plate (9) is supported by the support assembly, round holes are opened on both the left and right sides of the housing (1), a pipe (4) is fixedly connected between two of the round holes, an axial flow fan (12) is installed inside the round hole on the right side, a flow guide assembly is provided inside the housing (1) to guide the airflow, a filter screen (18) is inserted into the middle end of the pipe (4), a fixing assembly is provided on the top side of the middle end of the pipe (4) to fix the filter screen (18) to the inside of the pipe (4), and a heating pipe (10) is fixedly connected inside the housing (1).

2. The circulating hot air box for medical device disinfection according to claim 1, characterized in that: The support assembly includes a metal rod (13) fixedly connected inside the metal tube (8), and a plurality of rings (14) are sleeved on the outer wall of the metal rod (13), and a support rod (15) is fixedly connected to the outer wall of the rings (14).

3. A circulating hot air box for medical device sterilization according to claim 2, characterized in that: The end of the support rod (15) is inserted into the bottom side of the disinfection mesh plate (9). The outer wall of the metal tube (8) is provided with a sliding groove. A plurality of limiting grooves are provided on one side of the sliding groove. The support rod (15) is engaged inside the limiting groove.

4. A circulating hot air box for medical device sterilization according to claim 1, characterized in that: The flow guiding assembly includes two rotating rods (16) rotatably connected between the housing (1) and the side plate (3). A flow guiding plate (11) is fixedly connected to the outer wall of the rotating rod (16), and the flow guiding plate (11) has multiple honeycomb holes inside.

5. A circulating hot air box for medical device sterilization according to claim 4, characterized in that: The rear end of the rotating rod (16) is fixedly connected to a pulley (17), and the two pulleys (17) are connected by a belt. The rear side of the housing (1) is fixedly connected to a protective shell (6), and the pulley (17) is located inside the protective shell (6).

6. A circulating hot air box for medical device sterilization according to claim 5, characterized in that: A motor (7) is installed on the rear side of the protective shell (6), and the rear end of the rotating rod (16) on the top side is fixedly connected to the drive end of the motor (7). The rear end of the rotating rod (16) is rotatably connected to the inside of the protective shell (6).

7. A circulating hot air box for medical device sterilization according to claim 1, characterized in that: The fixing component includes a retaining ring (5) rotatably connected to the middle end of the pipe (4). Both the retaining ring (5) and the middle end of the inner wall of the pipe (4) are provided with annular grooves (21). The filter screen (18) is engaged inside the annular grooves (21). Sealing rings (20) are fixedly connected to the left and right sides of the retaining ring (5). The sealing rings (20) are engaged inside the middle end of the pipe (4).

8. A circulating hot air box for medical device sterilization according to claim 7, characterized in that: A fixing block (19) is fixedly connected to the middle of the outer wall of the pipe (4), and a fixing plate (22) is fixedly connected to the front side of the snap ring (5). Both sides of the fixing plate (22) are connected to buckle plates (23) by torsion springs. Two buckle rods (24) are fixedly connected to one side of the buckle plate (23), and the buckle rods (24) are engaged inside the fixing block (19).

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