A heat radiation type dry heat sterilization device for medical supplies
By using a material frame, a support net, and a roller drive mechanism in the sterilization device, the medical consumables are moved during the heat radiation process, which solves the problem of uneven heating at the stacking point, achieves a uniform and thorough sterilization effect, and improves efficiency through the recycling of waste heat.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG ZHONGTAI MEDICAL INSTR CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-19
AI Technical Summary
Existing dry heat sterilization devices for medical consumables often result in uneven heating and heat radiation at the stacked areas, leading to insufficient sterilization.
The system uses a material frame, a support net, and a drive mechanism in conjunction with rollers. The back-and-forth movement of the rollers moves the medical consumables on the support net, ensuring that the stacked areas are fully heated and exposed to heat radiation. This is combined with ultraviolet lamps to improve the sterilization effect.
It makes it easier for medical consumables to be heated and radiated by heat when stacked, resulting in uniform and thorough sterilization, and improves efficiency through waste heat recycling.
Smart Images

Figure CN224370261U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sterilization of medical consumables, and in particular to a thermal radiation dry heat sterilization device for medical consumables. Background Technology
[0002] Most medical consumables require dry heat sterilization before use. Existing technologies disclose various heat radiation dry heat sterilization devices for medical consumables. For example, Chinese utility model patent CN215230489U discloses a heat radiation dry heat sterilization device for medical consumables. This device includes a sterilization chamber with a sterilization component inside. A ventilation port is located on the left side of the chamber, and a purification component is located inside the ventilation port. This utility model uses a purification component at the ventilation port to adsorb impurities in the air entering the sterilization chamber. Moisture in the air evaporates upon heating and is absorbed by a desiccant placed inside the chamber. The combined use of the fan and purification component allows for appropriate cooling of the sterilization chamber's internal temperature while preventing impurities and moisture in the air from affecting the quality of the medical consumables. The purification component and sterilization chamber are fixed by a connecting block and a cylindrical block, facilitating the disassembly of the purification component and the replacement and cleaning of components such as the dust filter inside the outer frame.
[0003] However, the aforementioned dry heat sterilization device cannot effectively move the consumables during sterilization. When consumables are stacked, the stacked areas are not easily heated or subjected to heat radiation, resulting in uneven and insufficient sterilization. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a heat radiation dry heat sterilization device for medical consumables that can open the stacking area between medical consumables, making them easier to be heated and subjected to heat radiation, so as to achieve a uniform and sufficient sterilization effect.
[0005] This utility model discloses a thermal radiation dry heat sterilization device for medical consumables, comprising a housing and a hot air blower. The housing contains a sterilization chamber, and a loading / unloading port with a loading / unloading door is located on the front wall of the housing. The hot air blower is installed at the bottom of the sterilization chamber. The device also includes a material frame, a support mesh, rollers, and a drive mechanism. The hot air blower delivers hot air and heat radiation upwards. A sliding frame is installed within the sterilization chamber, and the material frame is detachably slidably mounted on the sliding frame. A support mesh, made of elastic material, is installed at the bottom of the material frame. The drive mechanism is located in the middle of the sterilization chamber, below the support mesh. Rollers are mounted on the drive mechanism, which drives the rollers to move, and the rollers roll the support mesh from below. During operation, medical consumables are placed into the material frame. The medical consumables are held in place by a support net and placed onto the slide of the sterilization chamber. The loading and unloading door is closed, and the hot air blower operates to deliver hot air and heat radiation upwards to sterilize the medical consumables through heat radiation and dry heat. At the same time, the drive mechanism drives the rollers to move back and forth, so that the roller surfaces roll against the support net. To improve the rolling effect, the rollers can be set to a cam shape, thereby moving the medical consumables on the support net, allowing the hot air and heat radiation to sterilize the stacked areas of the medical consumables. After sterilization, the hot air blower is turned off, the loading and unloading door is opened, the material frame is removed, and the medical consumables are taken out. Compared with existing technologies, this technology allows the medical consumables to move, opening up the stacked areas between the medical consumables, making them easier to heat and receive heat radiation, resulting in a more uniform and thorough sterilization effect.
[0006] Preferably, the drive mechanism includes two driven wheels, two driving wheels, two motors, and two transmission belts. The two driven wheels are rotatably mounted on the left side of the sterilization chamber of the box via brackets, and the two driving wheels are rotatably mounted on the right side of the sterilization chamber of the box via brackets. The two motors are respectively mounted on the brackets of the two driving wheels, and the output shafts of the two motors are respectively connected to the two driving wheels. The left ends of the two transmission belts are respectively connected to the two driven wheels, and the right ends of the two transmission belts are respectively connected to the two driving wheels. The two ends of the intermediate shaft of the roller are respectively connected to the two transmission belts via connectors. The two driving wheels and the two driven wheels rotatably support the two transmission belts. The two motors drive the two driving wheels to rotate, and the two driving wheels drive the two transmission belts to rotate reciprocally, so that the two transmission belts drive the rollers to move back and forth via the two connectors. During the movement of the rollers, the lower end face of the support net is rolled back and forth.
[0007] Preferably, the connecting component includes a mounting base, a bearing housing, and a rotating shaft. The mounting base is mounted on the transmission belt, and the end of the intermediate shaft of the roller is rotatably mounted on the bearing housing. The bearing housing is rotatably connected to the mounting base through the rotating shaft. When the transmission belt rotates, it drives the mounting base to move back and forth. The mounting base drives the end of the roller to move back and forth through the rotating shaft and the bearing housing. When the two transmission belts move synchronously, the two ends of the roller move synchronously. When the two transmission belts move at different times, the rollers are rolled on the support net in different stable states, thereby achieving different rolling effects.
[0008] Preferably, it also includes a controller and an ultraviolet lamp, which are installed in the sterilization chamber of the box. The ultraviolet lamp is located above the tray and is electrically connected to the controller. The controller is electrically connected to the loading and unloading door of the box. When the loading and unloading door is closed, the controller controls the ultraviolet lamp to turn on, so that the ultraviolet lamp can sterilize the medical consumables in the material frame with ultraviolet light, thereby improving the sterilization effect.
[0009] Preferably, it also includes a drying chamber and an air inlet filter plate. The drying chamber is installed at the bottom of the sterilization chamber of the main body and is located below the hot air blower. The drying chamber is filled with desiccant, and an air inlet is provided on the outer wall of the drying chamber. An air inlet filter plate is installed on the air inlet. When the hot air blower is running, it draws air from the outside through the air inlet. The air drawn in is filtered by the air inlet filter plate and dried by the desiccant. The air is then heated by the hot air blower and transported upwards, so that the hot air sterilizes the medical consumables on the tray with hot air and heat radiation, thereby improving the sterilization effect.
[0010] Preferably, the system also includes a gas collection box, an upper filter plate, and a return pipe. The gas collection box is installed on the top of the chamber and its interior is connected to the sterilization chamber of the chamber. The upper filter plate is installed inside the gas collection box. The inlet end of the return pipe is connected to the interior of the gas collection box and is located above the upper filter plate. The outlet end of the return pipe is connected to the drying chamber. During operation, the humid and hot air at the top of the sterilization chamber of the chamber is filtered by the upper filter plate and collected inside the gas collection box. It then flows back to the drying chamber through the return pipe, allowing the humid and hot air to be dried by the desiccant in the drying chamber. This avoids the direct discharge of humid and hot air and achieves waste heat recycling.
[0011] Compared with the prior art, the beneficial effects of this utility model are: it can move the medical consumables, so that the stacking of the medical consumables can be opened, making them easier to be heated and subjected to heat radiation, resulting in a uniform and sufficient sterilization effect. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a front sectional view of the present invention;
[0014] Figure 3 This is a schematic diagram of the isometric structure of this utility model;
[0015] Figure 4 It is a structural diagram of the hot air blower, drying box, air inlet filter plate, air collection box and return pipe, etc.
[0016] Figure 5 It is a structural diagram of the support net, rollers, and drive mechanism, etc.
[0017] Figure 6yes Figure 5 A magnified schematic diagram of the structure at point A in the middle.
[0018] The following components are labeled in the attached diagram: 1. Chamber; 2. Hot air blower; 3. Material frame; 4. Support mesh; 5. Roller; 6. Drive mechanism; 7. Driven wheel; 8. Drive wheel; 9. Motor; 10. Transmission belt; 11. Mounting base; 12. Bearing housing; 13. Rotating shaft; 14. Controller; 15. Ultraviolet lamp; 16. Drying oven; 17. Inlet air filter plate; 18. Air collection box; 19. Upper filter plate; 20. Return pipe. Detailed Implementation
[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1
[0020] like Figures 1 to 3 As shown, a thermal radiation dry heat sterilization device for medical consumables includes a housing 1 and a hot air blower 2. The housing 1 has a sterilization chamber inside, and a loading / unloading port with a loading / unloading door is located on the front wall of the housing 1. The hot air blower 2 is installed at the bottom of the sterilization chamber of the housing 1. It also includes a material frame 3, a support net 4, rollers 5, and a drive mechanism 6. The hot air blower 2 delivers hot air and thermal radiation upwards. A sliding frame is installed in the sterilization chamber of the housing 1, and the material frame 3 is detachably and slidably mounted on the sliding frame. The bottom of the material frame 3... The unit is equipped with a support net 4, which is made of elastic material. A drive mechanism 6 is installed in the middle of the sterilization chamber of the housing 1, and the drive mechanism 6 is located below the support net 4. A roller 5 is installed on the drive mechanism 6, and the drive mechanism 6 drives the roller 5 to move, and the roller 5 rolls the support net 4 from below. The unit also includes a controller 14 and an ultraviolet lamp 15, which are installed in the sterilization chamber of the housing 1. The ultraviolet lamp 15 is located above the support net 4 and is electrically connected to the controller 14.
[0021] The controller 14 is electrically connected to the loading and unloading door of the housing 1. During operation, medical consumables are placed in the material basket 3 and supported by the support net 4. The material basket 3 is then placed onto the slide of the sterilization chamber of the housing 1, and the loading and unloading door is closed. When the loading and unloading door is closed, the controller 14 controls the ultraviolet lamp 15 to turn on, so that the ultraviolet lamp 15 sterilizes the medical consumables in the material basket 3 with ultraviolet light, thereby improving the sterilization effect. The hot air blower 2 works to deliver hot air and heat radiation upwards to sterilize the medical consumables with heat radiation and dry heat. At the same time, the drive mechanism 6 drives the roller 5 to move back and forth. The movement of the roller 5 causes the roller surface of the support net 4 to roll back and forth. To improve the rolling effect, the roller 5 can be set as a cam shape, so that the medical consumables on the support net 4 are moved, allowing hot air and heat radiation to sterilize the stacked areas of the medical consumables. After sterilization, the hot air blower 2 is turned off, the pick-up and drop-off door is opened to take out the material box 3 and the medical consumables. Compared with the existing technology, the movement of the medical consumables allows the stacked areas between the medical consumables to be opened, making them easier to be heated and subjected to heat radiation, resulting in a more uniform and thorough sterilization effect. Example 2
[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, based on Embodiment 1, the drive mechanism 6 includes two driven wheels 7, two driving wheels 8, two motors 9, and two transmission belts 10. The two driven wheels 7 are rotatably mounted on the left side of the sterilization chamber of the box 1 via brackets, and the two driving wheels 8 are rotatably mounted on the right side of the sterilization chamber of the box 1 via brackets. The two motors 9 are respectively mounted on the brackets of the two driving wheels 8, and the output shafts of the two motors 9 are respectively connected to the two driving wheels 8. The left ends of the two transmission belts 10 are respectively connected to the two driven wheels 7, and the right ends of the two transmission belts 10 are respectively connected to the two driving wheels 8. The two ends of the intermediate shaft of the roller 5 are respectively connected to the two transmission belts 10 via connectors. The connectors include a mounting base 11, a bearing seat 12, and a rotating shaft 13. The mounting base 11 is mounted on the transmission belt 10, and the end of the intermediate shaft of the roller 5 is rotatably mounted on the bearing seat 12. The bearing seat 12 is rotatably connected to the mounting base 11 via the rotating shaft 13.
[0023] Two driving wheels 8 and two driven wheels 7 rotate to support two transmission belts 10. Two motors 9 drive the two driving wheels 8 to rotate, and the two driving wheels 8 drive the two transmission belts 10 to rotate back and forth. This causes the two transmission belts 10 to drive the rollers 5 to move back and forth through two connecting parts. During the movement of the rollers 5, the lower end face of the support net 4 is rolled back and forth. When the transmission belts 10 rotate, they drive the mounting base 11 to move back and forth. The mounting base 11 drives the end of the rollers 5 to move back and forth through the rotating shaft 13 and the bearing seat 12. When the two transmission belts 10 move synchronously, the two ends of the rollers 5 move synchronously. When the two transmission belts 10 move at different times, the rollers 5 are in different stable states to roll the support net 4, thus achieving different rolling effects. Example 3
[0024] like Figures 1 to 4 As shown, based on Embodiment 1, it also includes a drying chamber 16 and an air inlet filter plate 17. The drying chamber 16 is installed at the bottom of the sterilization chamber of the box body 1 and is located below the hot air blower 2. The drying chamber 16 is filled with desiccant, and an air inlet is provided on the outer wall of the drying chamber 16. The air inlet filter plate 17 is installed on the air inlet. It also includes a gas collecting box 18, an upper filter plate 19, and a return pipe 20. The gas collecting box 18 is installed on the top of the box body 1, and the interior of the gas collecting box 18 is connected to the sterilization chamber of the box body 1. The upper filter plate 19 is installed inside the gas collecting box 18. The input end of the return pipe 20 is connected to the interior of the gas collecting box 18 and is located above the upper filter plate 19. The output end of the return pipe 20 is connected to the drying chamber 16.
[0025] When the hot air blower 2 is running, it draws in air from the outside through the air inlet. The air is filtered by the air inlet filter plate 17 and dried by the desiccant. The air is then heated by the hot air blower 2 and transported upwards. This allows the hot air to sterilize the medical consumables on the support net 4 with hot air and heat radiation, improving the sterilization effect. During operation, the humid and hot air at the top of the sterilization chamber of the cabinet 1 is filtered by the upper filter plate 19 and collected in the air collection box 18. It then flows back to the drying box 16 through the return pipe 20, where the humid and hot air is dried by the desiccant in the drying box 16. This prevents the humid and hot air from being directly discharged and achieves waste heat recycling.
[0026] like Figures 1 to 6As shown, this utility model discloses a thermal radiation dry heat sterilization device for medical consumables. During operation, the medical consumables are first placed in a material frame 3 and supported by a support net 4. The material frame 3 is then placed onto a slide in the sterilization chamber of the housing 1, and the loading / unloading door is closed. When the loading / unloading door is closed, the controller 14 activates the ultraviolet lamp 15, causing the ultraviolet lamp 15 to sterilize the medical consumables in the material frame 3. Afterwards, the hot air blower 2 operates, causing the air in the drying chamber 16 to be dried and then upward-flowing hot air and heat radiation to sterilize the medical consumables through heat radiation and dry heat. The sterilization chamber 1... The hot and humid air at the top of the sterilization chamber is filtered by the upper filter plate 19 and collected inside the air collection box 18. It then flows back to the drying box 16 through the return pipe 20, where the hot and humid air is dried by the desiccant in the drying box 16. Then, the drive mechanism 6 drives the roller 5 to move back and forth, so that the roller 5 rolls the support net 4 back and forth, making the medical consumables on the support net 4 move. This allows the hot air and heat radiation to sterilize the stacked medical consumables. After sterilization, the hot air blower 2 is turned off. Finally, the pick-up and drop-off door is opened to take out the material box 3 and remove the medical consumables.
[0027] The main functions achieved by this utility model are:
[0028] 1. It can move medical consumables, opening up the stacked areas between them, making them easier to heat and receive heat radiation, resulting in a more uniform and thorough sterilization effect;
[0029] 2. By adjusting the posture and state of roller 5, different rolling effects are achieved on the support net 4 and medical consumables;
[0030] 3. Internal hot air is circulated and reused to realize the utilization of waste heat.
[0031] This utility model discloses a thermal radiation dry heat sterilization device for medical consumables. Its installation, connection, or setting methods are all common mechanical methods, and any method that can achieve its beneficial effect can be implemented. The components of the thermal radiation dry heat sterilization device for medical consumables, including the box body 1, hot air blower 2, material frame 3, support net 4, roller 5, drive mechanism 6, driven wheel 7, driving wheel 8, motor 9, transmission belt 10, mounting base 11, bearing seat 12, rotating shaft 13, controller 14, ultraviolet lamp 15, drying oven 16, air inlet filter plate 17, and upper filter plate 19, are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0032] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A hot air type dry heat sterilization device for medical supplies, comprising a box (1) and a hot air blower (2), the inside of the box (1) is provided with a sterilization chamber, a taking and placing opening is provided on the front wall of the box (1), a taking and placing door is installed on the taking and placing opening, and the hot air blower (2) is installed at the bottom of the sterilization chamber of the box (1); characterized in that, It also includes a material frame (3), a support net (4), rollers (5) and a drive mechanism (6). The hot air blower (2) delivers hot air and heat radiation upward. A slide is installed in the sterilization chamber of the box (1). The material frame (3) is detachably slidably installed on the slide. The support net (4) is installed at the bottom of the material frame (3). The support net (4) is made of elastic material. The drive mechanism (6) is installed in the middle of the sterilization chamber of the box (1). The drive mechanism (6) is located below the support net (4). The rollers (5) are installed on the drive mechanism (6). The drive mechanism (6) drives the rollers (5) to move. The rollers (5) roll the support net (4) from below.
2. The thermal radiation dry heat sterilization device for medical consumables as described in claim 1, characterized in that, The drive mechanism (6) includes two driven wheels (7), two driving wheels (8), two motors (9) and two transmission belts (10). The two driven wheels (7) are rotatably mounted on the left side of the sterilization chamber of the box (1) via a bracket. The two driving wheels (8) are rotatably mounted on the right side of the sterilization chamber of the box (1) via a bracket. The two motors (9) are respectively mounted on the brackets of the two driving wheels (8). The output shafts of the two motors (9) are respectively connected to the two driving wheels (8). The left ends of the two transmission belts (10) are respectively connected to the two driven wheels (7) via a sleeve. The right ends of the two transmission belts (10) are respectively connected to the two driving wheels (8) via a sleeve. The two ends of the intermediate shaft of the roller (5) are respectively connected to the two transmission belts (10) via connectors.
3. The thermal radiation dry heat sterilization device for medical consumables as described in claim 2, characterized in that, The connecting parts include a mounting base (11), a bearing seat (12), and a rotating shaft (13). The mounting base (11) is mounted on the transmission belt (10), and the end of the intermediate shaft of the roller (5) is rotatably mounted on the bearing seat (12). The bearing seat (12) is rotatably connected to the mounting base (11) through the rotating shaft (13).
4. The thermal radiation dry heat sterilization device for medical consumables as described in claim 1, characterized in that, It also includes a controller (14) and an ultraviolet lamp (15), which are installed in the sterilization chamber of the box (1). The ultraviolet lamp (15) is located above the support net (4) and is electrically connected to the controller (14).
5. A thermal radiation dry heat sterilization device for medical consumables as described in claim 1, characterized in that, It also includes a drying box (16) and an air inlet filter plate (17). The drying box (16) is installed at the bottom of the sterilization chamber of the box body (1). The drying box (16) is located below the hot air blower (2). The drying box (16) is filled with desiccant. An air inlet is provided on the outer wall of the drying box (16). An air inlet filter plate (17) is installed on the air inlet.
6. A thermal radiation dry heat sterilization device for medical consumables as described in claim 5, characterized in that, It also includes a gas collection box (18), an upper filter plate (19) and a return pipe (20). The gas collection box (18) is installed on the top of the box body (1). The interior of the gas collection box (18) is connected to the sterilization chamber of the box body (1). The upper filter plate (19) is installed inside the gas collection box (18). The inlet end of the return pipe (20) is connected to the interior of the gas collection box (18). The inlet end of the return pipe (20) is located above the upper filter plate (19). The outlet end of the return pipe (20) is connected to the drying oven (16).