High-temperature disinfection device for medical apparatus and instruments

Abstract

The high-temperature disinfection device comprises a disinfection box, a box door is connected to the exterior of a box body of the disinfection box, a disinfection cavity is connected to the interior of the box body of the disinfection box, and an opening of the disinfection cavity corresponds to the box door; the material frame mechanism comprises rotating discs and material frames, the rotating discs are symmetrically arranged at the two ends of the interior of the disinfection cavity and are in sliding connection with the disinfection cavity, and the multiple material frames are connected between the two rotating discs in a hung mode; the flow guide mechanism is rotationally connected with the end, away from the box door, of the disinfection cavity, the conveying pipe is connected with the two rotating discs, and the outer portion of a pipe body, extending into the disinfection cavity, of the conveying pipe is connected with an exhaust flow guide plate; a frame body air inlet assembly is connected to a frame body of the material frame. The gas path system comprises a steam generator, an axial flow fan and a reversing valve. Even for medical apparatuses and instruments with complex structures, comprehensive and uniform sterilization and drying can be realized, and the treatment effect is far better than that of static disinfection equipment.

Description

Technical Field

[0001] This invention relates to the technical field of medical device processing, specifically to a high-temperature sterilization device for medical devices. Background Technology

[0002] High-temperature sterilization of medical devices is a routine procedure in medical and laboratory settings to kill pathogenic microorganisms on the surface of devices and prevent cross-infection. Traditional high-temperature sterilization equipment for medical devices mainly uses static sterilization methods, which involves placing medical devices on fixed supports inside a sterilization chamber and sterilizing them by heating with steam or hot air.

[0003] Due to the complex structure of medical devices, such as tubular instruments, jointed instruments, and instruments with gaps, the high-temperature medium (steam or hot air) relies mainly on natural convection and heat conduction to transfer heat during static sterilization. This can easily create temperature dead zones in recessed areas of the instruments, inside lumens, and in overlapping areas between instruments. The temperature in these areas may not meet sterilization requirements, leading to incomplete sterilization and a risk of cross-infection. Furthermore, uneven temperature distribution within the sterilization chamber, with higher temperatures near the heat source and lower temperatures further exacerbates the problem of uneven sterilization. In addition, traditional static sterilization equipment typically requires a long sterilization time to ensure effectiveness, resulting in low efficiency. Summary of the Invention

[0004] The present invention mainly provides a high-temperature sterilization device for medical devices to solve the technical problems mentioned in the background art.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0006] A high-temperature sterilization device for medical devices includes:

[0007] A disinfection box, wherein the outside of the box body is connected to a door, and the inside of the box body is connected to a disinfection chamber, the opening of the disinfection chamber corresponding to the door;

[0008] The material rack mechanism includes a rotating disk and a material rack. The rotating disk is symmetrically arranged at both ends of the inside of the disinfection chamber and is slidably connected to the disinfection chamber. Multiple material racks are provided, and multiple material racks are hung between two rotating disks.

[0009] The flow guiding mechanism includes a conveying pipe rotatably connected to the end of the disinfection chamber away from the door and extending into the interior of the disinfection chamber. The conveying pipe is connected to two rotating disks. An exhaust guide plate is connected to the outside of the pipe extending into the disinfection chamber. A power component is connected to the end of the conveying pipe extending to the outside. The power component is used to drive the conveying pipe to rotate so that the exhaust guide plate, rotating disks and material rack rotate around the conveying pipe.

[0010] The frame of the material rack is connected to a frame air intake assembly, which can be connected to the exhaust end of the exhaust guide plate and guide the gas to blow towards the medical device inside the frame.

[0011] The gas system includes a steam generator, an axial flow fan, and a reversing valve. The reversing valve is connected to the bottom of the disinfection chamber. The outlet of the reversing valve is connected to the inlet of the delivery pipe. The inlet of the reversing valve is connected to the outlet of the steam generator and the axial flow fan. The steam generator is connected to the top of the disinfection chamber, and the axial flow fan is connected to the bottom of the disinfection chamber.

[0012] Furthermore, the rotating disk near the box door is provided with multiple first feed ports, the number of which is the same as the number of material racks; the material rack includes hanging plates, support frames, and hollow instrument racks. The hanging plates are provided in two places, respectively located on the side surfaces of the two rotating disks that are close to each other. The hanging plate near the box door is provided with a second feed port corresponding to the first feed port. The two ends of the support frame are connected to the two adjacent hanging plates by pins. The hollow instrument rack can be inserted into the frame of the support frame and is slidably connected to the frame of the support frame; the air intake assembly of the rack is provided on the support frame.

[0013] Furthermore, the frame air intake assembly includes side wall channels and telescopic air intake pipes. There are two side wall channels, which are respectively located on both sides of the support frame. The air outlets of the side wall channels face the medical devices inside the hollow instrument frame. The air outlet of the telescopic air intake pipe is connected to the air inlet of the side wall channels. The telescopic air intake pipe is located at multiple apex corners of the support frame and is arranged along the apex corner edges of the frame.

[0014] Furthermore, the telescopic air intake pipe includes a guide pipe connected to the support frame, the air outlet end of the guide pipe is connected to the side wall flow channel, a sliding pipe is slidably connected to the outside of the guide pipe, a spring is abutted on one side of the sliding pipe, and the spring is sleeved on the outside of the guide pipe body; the end of the sliding pipe away from the support frame can be connected to the exhaust end of the exhaust guide plate.

[0015] Furthermore, the exhaust guide plate is a hollow plate, and multiple exhaust pipes are connected inside the plate. One end of each exhaust pipe is connected to the pipe body of the delivery pipe. Multiple exhaust heads are connected to the outside of each exhaust pipe, and the end of each exhaust head away from the exhaust pipe is slidably connected to the surface of the exhaust guide plate.

[0016] Furthermore, the exhaust guide plate is provided with a plurality of sliding grooves corresponding to the exhaust pipe. The bottom surface of the sliding groove is flush with the end of the exhaust head away from the exhaust pipe. The groove is used to allow one end of the sliding pipe to slide.

[0017] Furthermore, a sliding round head is connected to one end of the sliding tube away from the support frame. The sliding round head is slidably connected to an adjacent sliding groove. A vent hole is provided on the sliding round head, and the hole body of the vent hole is connected to the inner cavity of the sliding tube.

[0018] Furthermore, the outlet of the reversing valve is connected to a first pipe, the outlet of the first pipe is connected to the inlet of the conveying pipe and sealed by a bushing, the first inlet of the reversing valve is connected to the exhaust end of the axial flow fan through a second pipe, the second inlet of the reversing valve is connected to the exhaust end of the steam generator through a third pipe, and the water inlet of the steam generator is connected to a water source, which is softened water.

[0019] Furthermore, the reversing valve has a first working position and a second working position. In the first working position, the first air inlet of the reversing valve is connected to the second pipe, and in the second working position, the second air inlet of the reversing valve is connected to the third pipe.

[0020] Furthermore, the power assembly includes a motor connected to the inner wall of the bottom end of the disinfection box and located on one side of the disinfection chamber. The motor is connected to a rotating shaft via a coupling. The rotating shaft is connected to the disinfection box via a bearing seat. A first pulley is connected to the outer side of the rotating shaft away from the motor via a key. The first pulley is connected to a second pulley via a belt. The second pulley is connected to the outer surface of the end of the conveying pipe that extends to the outside of the disinfection chamber via a key.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] Firstly, this invention uses a power component to drive the material rack to revolve, which, combined with the high-temperature medium blown out directionally from inside the rack, creates a three-dimensional sterilization and drying environment. The rack maintains its orientation during rotation but its position constantly changes, ensuring that each surface of the device is swept by the medium at different locations, effectively eliminating blind spots and treatment dead zones. Even for complex medical devices, it can achieve comprehensive and uniform sterilization and drying, with treatment effects far exceeding those of static sterilization equipment.

[0023] Secondly, this invention integrates the rotating mechanism, the air guiding mechanism, and the air path system inside the disinfection box, resulting in a compact overall structure and small footprint. The material racks adopt a modular hanging design, with multiple racks arranged in layers, increasing the single-pass processing capacity. The rotating disks are symmetrically arranged, providing stable support and smooth rotation. The docking structure between the exhaust guide plate and the air intake assembly of the frame ensures a reliable air path connection during rotation.

[0024] Thirdly, this invention integrates steam sterilization and hot air drying functions into the same device, automatically switching operating modes via a reversing valve to achieve seamless integration of sterilization and drying. Users only need to load the materials once to complete the entire sterilization process, avoiding the risk of secondary contamination that may occur when transferring instruments between different devices. This is particularly suitable for medical environments with strict hygiene requirements. Automated control reduces manual operation steps, lowering the difficulty of operation and the risk of human error.

[0025] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the disinfection box of the present invention;

[0028] Figure 3 This is a schematic diagram of the material rack mechanism and air passage system of the present invention;

[0029] Figure 4 This is a schematic diagram of the pneumatic system and power assembly of the present invention;

[0030] Figure 5 This is a schematic diagram of the material rack structure of the present invention;

[0031] Figure 6 for Figure 5 Enlarged view of the structure of area A in the middle;

[0032] Figure 7 This is a broken view of the cross-sectional view of the support frame of the present invention;

[0033] Figure 8 This is a schematic diagram of the material rack mechanism of the present invention;

[0034] Figure 9 This is a broken view of the exhaust guide plate of the present invention.

[0035] In the diagram: 1. Disinfection box; 11. Box door; 12. Disinfection chamber; 2. Material rack mechanism; 21. Rotating disc; 22. Material rack; 221. Frame air intake assembly; 2211. Side wall flow channel; 2212. Telescopic air intake pipe; 2213. Guide pipe; 2214. Sliding pipe; 2215. Spring; 222. Support frame; 223. Hollowed-out instrument rack; 224. Hanging plate; 3. Flow guiding mechanism; 31. Conveying pipe; 32. Exhaust guide plate; 321. Exhaust pipe; 322. Exhaust head; 323. Sliding groove; 33. Power assembly; 331. Motor; 332. Rotating shaft; 333. First pulley; 334. Second pulley; 4. Air circuit system; 41. Steam generator; 42. Axial flow fan; 43. Reversing valve; 431. First pipe; 432. Second pipe; 433. Third pipe. Detailed Implementation

[0036] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] This application provides a high-temperature sterilization device for medical devices, as illustrated in the schematic diagram below. Figure 1-4 As shown. High-temperature sterilization equipment for medical devices includes:

[0040] The disinfection box 1 has a door 11 connected to the outside of the box body and a disinfection chamber 12 connected to the inside of the box body. The opening of the disinfection chamber 12 corresponds to the door 11.

[0041] The material rack mechanism 2 includes a rotating disk 21 and a material rack 22. The rotating disk 21 is symmetrically arranged at both ends inside the disinfection chamber 12 and is slidably connected to the disinfection chamber 12. Multiple material racks 22 are provided, and multiple material racks 22 are hung between two rotating disks 21.

[0042] The flow guiding mechanism 3 includes a conveying pipe 31 that is rotatably connected to the end of the disinfection chamber 12 away from the door 11 and extends into the interior of the disinfection chamber 12. The conveying pipe 31 is connected to two rotating disks 21. An exhaust guide plate 32 is connected to the outside of the pipe body extending into the disinfection chamber 12. A power component 33 is connected to the end of the conveying pipe 31 extending to the outside. The power component 33 is used to drive the conveying pipe 31 to rotate so that the exhaust guide plate 32, the rotating disks 21 and the material rack 22 rotate around the conveying pipe 31.

[0043] The frame of the material rack 22 is connected to the frame air intake assembly 221. The frame air intake assembly 221 can be connected to the exhaust end of the exhaust guide plate 32 and guide the gas to blow towards the medical device inside the frame.

[0044] The gas system 4 includes a steam generator 41, an axial flow fan 42, and a reversing valve 43. The reversing valve 43 is connected to the bottom of the inside of the disinfection box 1. The outlet of the reversing valve 43 is connected to the inlet of the delivery pipe 31. The inlet of the reversing valve 43 is connected to the outlet of the steam generator 41 and the axial flow fan 42. The steam generator 41 is connected to the top of the disinfection box 1, and the axial flow fan 42 is connected to the bottom of the inside of the disinfection box 1.

[0045] It should be noted that, in this embodiment, when the device is working, the steam generator 41 of the air circuit system 4 generates high-temperature saturated steam, or the axial flow fan 42 generates flowing air. The reversing valve 43 switches the air circuit according to the sterilization or drying procedure. During the sterilization stage, the reversing valve 43 connects the passage between the steam generator 41 and the delivery pipe 31, and the high-temperature steam enters the delivery pipe 31 and is distributed to the frame air intake assembly 221 of each rack 22 via the rotating exhaust guide plate 32, directly acting on the surface of the medical device for high-temperature sterilization. During the drying stage, the reversing valve 43 switches to connect the axial flow fan 42 and the delivery pipe 31, and the axial flow fan blows ambient air or slightly preheated airflow onto the device to remove residual moisture and achieve drying. The power assembly 33 drives the delivery pipe 31 to rotate, thereby driving the rotating disk 21, the rack 22 and the exhaust guide plate 32 to rotate synchronously. During the rotation, the rack 22 maintains its orientation by means of the hanging structure and does not rotate on its own axis.

[0046] The reversing valve 43 integrates steam sterilization and hot air drying functions, simplifying the operation process; the rotating disk 21 drives the material rack 22 to revolve, and with the directional airflow, it realizes all-round, no dead angle sterilization and uniform drying of medical devices; the axial flow fan 42 is used for drying, which can effectively reduce the humidity of the devices and prevent secondary pollution; the overall structure is compact, integrating rotation, air guidance and air path into one, with high space utilization.

[0047] The exhaust guide plate 32 is fixedly connected to the conveying pipe 31 and rotates synchronously with the conveying pipe 31. When the exhaust guide plate 32 rotates inside the disinfection chamber 12, its surface moves relative to the air or steam medium inside the chamber, creating a hydrodynamic effect.

[0048] During rotation, the lower surface of the exhaust guide plate 32 comes into contact with the low-temperature, high-density medium at the bottom of the cavity. Due to the rotational motion of the plate, it exerts an upward scraping or carrying effect on the medium at the bottom, similar to the principle of fan blades, pushing the medium at the bottom upward.

[0049] When the upper surface of the exhaust guide plate 32 rotates, it will disturb and agitate the hot air in the upper part of the cavity, breaking the natural stratification of the hot air and mixing the high-temperature medium in the upper part with the low-temperature medium in the middle and lower parts.

[0050] With the continuous rotation of the exhaust guide plate 32, the medium in the disinfection chamber 12 forms a forced convection circulation: the bottom medium is pushed upward, the upper medium diffuses to all sides, the medium near the side wall sinks due to the decrease in temperature, and the bottom medium is pushed upward again. This circulation makes the temperature distribution in the entire chamber more uniform.

[0051] Optional, please refer to the appendix Figure 5 The rotating disk 21 near the door 11 is provided with multiple first feed ports, the number of which is the same as the number of material racks 22. The material rack 22 includes a hanging plate 224, a support frame 222, and a hollow instrument rack 223. There are two hanging plates 224, which are respectively located on the side surfaces of the two rotating disks 21 that are close to each other. The hanging plate 224 near the door 11 is provided with a second feed port corresponding to the first feed port. The two ends of the support frame 222 are connected to the two adjacent hanging plates 224 by pins. The hollow instrument rack 223 can be inserted into the frame of the support frame 222 and is slidably connected to the frame of the support frame 222. The rack air intake assembly 221 is provided on the support frame 222.

[0052] In this embodiment, the material rack 22 is aligned and hooked with the first feed port of the rotating disk 21 via the second feed port on the hanging plate 224, enabling quick loading and unloading. The two ends of the support frame 222 are hinged to two adjacent hanging plates 224 via pins, ensuring the material rack 22 remains stable during rotation. The perforated instrument rack 223 can be pulled out or inserted along the sliding groove of the support frame 222, facilitating the placement and removal of instruments. The air intake assembly 221 is mounted on the support frame 222, ensuring the air passage is integrated with the main structure of the material rack. During its revolution, because the hanging plate 224 and the rotating disk 21 are hinged via pins, the material rack 22 itself does not rotate around the pins, always maintaining its initial orientation.

[0053] The material rack 22 is connected to the rotating disk 21 via the hanging plate 224, realizing a modular design that is easy to disassemble and clean; the support frame 222 and the hanging plate 224 are connected by a pin, ensuring structural stability; the hollow instrument rack 223 is pluggable and easy to install and remove; multiple material racks 22 are arranged in layers to increase the amount of disinfection per batch; the material rack 22 maintains its orientation during rotation to prevent instruments from rolling or shifting inside the rack, while ensuring the reliability of the connection between the air intake component 221 and the exhaust guide plate 32.

[0054] The feed inlet is a circular or rectangular through hole with chamfered or guide bevels at the edge for easy mounting and alignment. The contact surface between the hanging plate 224 and the rotating disk 21 can be equipped with positioning pins or a magnetic adsorption structure to enhance connection stability. The inner wall of the support frame 222 is equipped with slide rails, such as dovetail grooves, T-slots, or linear guides. The hollow instrument rack 223 has sliders on both sides that match the slide rails; alternatively, a drawer-type slide rail structure with limit buckles can be used. The motor 331 is connected to the control system, which is connected to the door lock switch button. When the button is pressed, the motor 331, equipped with an encoder, rotates to align the first feed inlet with the second feed inlet, facilitating the placement of medical devices into the sterilization device.

[0055] Optional, please refer to the appendix Figure 6 The frame air intake assembly 221 includes a side wall flow channel 2211 and a telescopic air intake pipe 2212. There are two side wall flow channels 2211, which are located on both sides of the frame of the support frame 222. The air outlet of the side wall flow channel 2211 faces the medical device inside the hollow instrument rack 223. The air outlet of the telescopic air intake pipe 2212 is connected to the air inlet of the side wall flow channel 2211. The telescopic air intake pipe 2212 is located at multiple top corners of the frame of the support frame 222 and is arranged along the top corner edge of the frame.

[0056] In this embodiment, when the material rack 22 rotates to the vicinity of the exhaust guide plate 32, the end of the sliding tube 2214 of the telescopic air inlet pipe 2212 aligns with the exhaust head 322 of the exhaust guide plate 32. During the sterilization stage, high-temperature steam enters through this tube, passes through the guide pipe 2213 into the side wall flow channel 2211, and is sprayed onto the instruments from the outlet. During the drying stage, hot air flows along the same path to dry the instruments. Two side wall flow channels 2211 are provided, located on both sides of the support frame 222, allowing the medium to evenly cover the instruments from both sides. The telescopic air inlet pipes 2212 are arranged along the top corner edge of the support frame 222, ensuring that each telescopic air inlet pipe 2212 can accurately align with the corresponding exhaust head 322 during rotation.

[0057] The side wall flow channel 2211 guides the medium from both sides of the support frame 222, eliminating the dead corners for disinfection and drying on the sides and bottom of the instrument; multiple telescopic air inlets 2212 and the side wall flow channel 2211 form a multi-point air intake, improving the uniformity of airflow; the telescopic air inlets 2212 are arranged along the top corner, which facilitates docking with the exhaust guide plate 32, and is suitable for airflow delivery in both disinfection and drying conditions.

[0058] The flow channel has a rectangular or circular cross-section with a smooth inner wall to reduce resistance; the air outlet consists of multiple small holes or slit-like openings with a diameter of 2-5 mm and a spacing of 10-20 mm; the air outlet direction forms an angle of 30°-60° with the horizontal plane, blowing obliquely downwards or upwards towards the instrument. One outlet is provided at each of the four apex corners of the support frame 222, or 3-4 outlets are arranged at equal intervals along the top edge; the axis of the air inlet pipe is perpendicular to the plane of the rotating disk 21.

[0059] Optional, please refer to the appendix Figure 6 The telescopic intake pipe 2212 includes a guide pipe 2213 connected to the frame of the support frame 222. The outlet end of the guide pipe 2213 is connected to the side wall flow channel 2211. A sliding pipe 2214 is slidably connected to the outside of the guide pipe 2213. A spring 2215 is abutted on one side of the sliding pipe 2214. The spring 2215 is sleeved on the outside of the pipe body of the guide pipe 2213. The end of the sliding pipe 2214 away from the support frame 222 can be connected to the exhaust end of the exhaust guide plate 32.

[0060] In this embodiment, when the material rack 22 rotates to the vicinity of the exhaust guide plate 32, the sliding tube 2214 extends under the action of the spring 2215. The sliding round head 2215 at the end of the sliding tube 2214 slides into the sliding groove 323 of the exhaust guide plate 32, and finally contacts and connects with the end face of the exhaust head 322. After connection, both steam and hot air enter the inner cavity of the sliding tube 2214 from the exhaust head 322 through the vent hole of the sliding round head 2215. The spring 2215 provides preload to ensure a tight seal. When the material rack 22 rotates away, the sliding tube 2214 slides and retracts within the guide tube 2213 to avoid interference.

[0061] The pre-tensioned telescopic structure of spring 2215 enables automatic connection and disconnection of the gas path without manual operation, adapting to dynamic rotation processes. The sliding round head 2215 contacts the end face of the exhaust head 322, ensuring good sealing and reducing media leakage. This structure compensates for minor positional deviations during installation and rotation, ensuring the reliability of the gas path connection during disinfection and drying stages. An O-ring, made of fluororubber or silicone rubber, with a temperature resistance of over 200℃, can be installed on the outer wall of the sliding tube to achieve airtightness, or a precision clearance fit can be used.

[0062] Optional, please refer to the appendix Figure 8 The exhaust guide plate 32 is a hollow plate. Multiple exhaust pipes 321 are connected inside the plate. One end of the multiple exhaust pipes 321 is connected to the pipe body of the conveying pipe 31. Multiple exhaust heads 322 are connected to the outside of the pipe body of the exhaust pipes 321. The end of the exhaust head 322 away from the exhaust pipe 321 is slidably connected to the surface of the plate body of the exhaust guide plate 32.

[0063] In this embodiment, high-temperature steam or hot air enters the internal cavity of the exhaust guide plate 32 from the conveying pipe 31, and after being diverted by multiple exhaust pipes 321, it is ejected from each exhaust head 322. The exhaust head 322 can slide on the surface of the exhaust guide plate 32. When docking with the telescopic air inlet pipe 2212 of the material rack, the exhaust head 322 can be pushed in or pulled out to adapt to different docking positions. The multiple exhaust pipes 321 and exhaust heads 322 form a distributed exhaust network to ensure uniform flow at each docking point.

[0064] Multi-point, adjustable exhaust is achieved through multiple exhaust pipes 321 and sliding exhaust heads 322, which can simultaneously connect with the air intake components of multiple material racks 22, improving the uniformity and efficiency of disinfection and drying; the sliding design of the exhaust head 322 gives it a certain degree of freedom, which can better connect with the sliding pipe 2214 and improve the connection sealing; the structure is compact and integrated inside the guide plate.

[0065] The exhaust head is fixed to the end of the exhaust pipe by threaded connection, snap-fit ​​connection or welding; the exhaust head is a conical or cylindrical nozzle with an outlet diameter of 3-6mm.

[0066] Optional, please refer to the appendix Figure 8 and 9 The exhaust guide plate 32 has multiple sliding grooves 323 corresponding to the exhaust pipe 321. The bottom surface of the sliding groove 323 is flush with the end of the exhaust head 322 away from the exhaust pipe 321. The groove of the sliding groove 323 is used for one end of the sliding pipe 2214 to slide.

[0067] In this embodiment, the sliding groove 323 provides a guide and running track for the sliding round head 2215 at the end of the sliding tube 2214. When the material rack 22 rotates, the sliding round head 2215 slides within the sliding groove 323, ensuring accurate positioning during the docking process. The bottom of the sliding groove 323 is flush with the end of the exhaust head 322, allowing the sliding round head 2215 to slide smoothly and eventually make tight contact with the end face of the exhaust head 322, forming an effective seal.

[0068] The sliding groove 323 guides and limits the end of the sliding tube 2214, ensuring the accuracy and repeatability of the gas path connection; the bottom of the groove is flush with the end face of the exhaust head 322, which helps to form a stable sealing plane and reduce media leakage; the structure is simple and easy to process. The sliding grooves are arranged radially or circumferentially along the exhaust guide plate 32, and the number is the same as the number of material racks 22. Each sliding groove 323 corresponds to the docking position of one material rack.

[0069] Optional, please refer to the appendix Figure 6 The end of the sliding tube 2214 away from the support frame 222 is connected to a sliding round head 2215. The sliding round head 2215 is slidably connected to the adjacent sliding groove 323. The sliding round head 2215 is provided with a vent hole, and the hole body of the vent hole is connected to the inner cavity of the sliding tube 2214.

[0070] In this embodiment, the spherical or arcuate surface of the sliding head 2215 contacts the bottom of the sliding groove 323, resulting in low frictional resistance. The vent on the sliding head 2215 communicates with the inner cavity of the sliding tube 2214, allowing steam or hot air to enter the sliding tube through the vent. The spherical contact design allows the sliding head 2215 to have a certain degree of angular adaptability during docking, compensating for slight deflection errors and ensuring a sealing effect.

[0071] The spherical design of the sliding round head 2215 reduces sliding friction resistance, making the docking process smoother and reducing wear; the spherical contact seal has a higher tolerance for non-parallelism than the planar contact seal, and the seal is more reliable; the vent is directly connected, allowing for smooth airflow and low pressure loss.

[0072] Optional, please refer to the appendix Figure 3 The outlet of the reversing valve 43 is connected to the first pipe 431, the outlet of the first pipe 431 is connected to the inlet of the conveying pipe 31 and is sealed by a bushing. The first inlet of the reversing valve 43 is connected to the exhaust of the axial flow fan 42 through the second pipe 432. The second inlet of the reversing valve 43 is connected to the exhaust of the steam generator 41 through the third pipe 433. The water inlet of the steam generator 41 is connected to a water source, which is softened water.

[0073] In this embodiment, the reversing valve 43 is connected to the delivery pipe 31 via a first pipe 431, to the axial flow fan 42 via a second pipe 432, and to the steam generator 41 via a third pipe 433. During sterilization, the reversing valve 43 connects the steam passage to the delivery pipe 31; during drying, the reversing valve 43 connects the air passage to the delivery pipe 31. The first pipe 431 and the delivery pipe 31 are sealed by a bushing, allowing the delivery pipe to rotate without air leakage. The steam generator 41 uses softened water as its water source to reduce scale formation.

[0074] The switching between steam sterilization mode and hot air drying mode is achieved through a reversing valve 43, which has a high degree of integration and is easy to control; the bushing sealing structure solves the dynamic sealing problem between rotating parts and fixed pipelines; the use of softened water extends the service life of steam generator 41 and improves thermal efficiency.

[0075] The bushing uses a graphite packing seal or mechanical seal structure; the inner bore of the bushing is clearance-fitted with the outer diameter of the delivery pipe 31, and the outer diameter of the bushing is connected to the flange of the first pipe 431; the bushing may be equipped with a cooling water jacket or heat dissipation fins to reduce the temperature of the sealing part. The pipe is made of stainless steel 304 or 316, with an outer diameter of 25-40mm and a wall thickness of 1.5-2mm; the pipe is connected by flanges or clamps, and sealing gaskets are installed at the joints. The water source is a water softening device, ion exchange resin or reverse osmosis device output water, with a softened water hardness ≤0.03mmol / L; the water softening device can be integrated inside the equipment or connected externally. The reversing valve is a three-way ball valve, butterfly valve or plug valve, with a valve body made of stainless steel and a sealing material of polytetrafluoroethylene or graphite; the valve body is equipped with a manual operating handle or an electric / pneumatic actuator, and is automatically controlled by the control system.

[0076] Optional, please refer to the appendix Figure 3 The reversing valve 43 has a first working position and a second working position. In the first working position, the first air inlet of the reversing valve 43 is connected to the second pipe 432. In the second working position, the second air inlet of the reversing valve 43 is connected to the third pipe 433.

[0077] In this embodiment, the reversing valve 43 has two distinct operating positions. In the first operating position, its valve core connects the first air inlet to the axial flow fan 42 and the air outlet to the delivery pipe 31, achieving the drying mode. In the second operating position, its valve core connects the second air inlet to the steam generator 41 and the air outlet, achieving the disinfection mode. The valve core can be switched manually, electrically, or pneumatically. The two distinct operating positions avoid intermediate states or cross-contamination risks during mode switching, ensuring the independence of the disinfection medium and the drying medium; the valve core and valve seat are in close contact, providing good sealing performance and preventing medium leakage; the structure is simple and the operation is reliable.

[0078] Optional, please refer to the appendix Figure 4The power assembly 33 includes a motor 331 connected to the inner wall of the bottom end of the disinfection box 1 and located on one side of the disinfection chamber 12. The motor 331 is connected to the rotating shaft 332 via a coupling. The rotating shaft 332 is connected to the disinfection box 1 via a bearing seat. A first pulley 333 is connected to the outer end of the rotating shaft 332 away from the motor 331 via a key. The first pulley 333 is connected to a second pulley 334 via a belt. The second pulley 334 is connected to the outer surface of the end of the conveying pipe 31 that extends to the outside of the disinfection chamber 12 via a key.

[0079] In this embodiment, motor 331 drives rotating shaft 332 to rotate via coupling. The rotating shaft transmits power to conveying pipe 31 via first pulley 333, belt, and second pulley 334, causing it to rotate. Bearing housing provides stable support for the rotating shaft. Belt drive serves to reduce speed and transmit torque, and also provides some buffering and shock absorption.

[0080] Motor 331 is connected to the control panel outside the disinfection box 1 via wires. The control panel is equipped with a power switch, temperature controller, timer, and mode selection switch. The control panel is connected to motor 331, the heating element of steam generator 41, the motor of axial fan 42, and the solenoid valve or electric actuator of reversing valve 43 via signal lines.

[0081] The control panel has a preset disinfection-drying linkage program. Upon startup, the disinfection program is executed first: the reversing valve 43 switches to the steam passage, the steam generator 41 starts and reaches the set temperature, such as 121℃ or 134℃, the power unit 33 starts, and it runs for the set time. After the disinfection program ends, it automatically switches to the drying program: the reversing valve 43 switches to the air passage, the steam generator 41 stops heating or shuts down, the axial fan 42 starts, and ambient air can be introduced or the air can be moderately heated, for example, to 50-60℃, using the waste heat / auxiliary heater of the steam generator 41. The power unit 33 continues to run, and the entire process ends after the set time.

[0082] The inner wall of the disinfection chamber 12 is equipped with a temperature sensor, such as a PT100 or a thermocouple. The sensor signal is fed back to the control panel, and the heating power of the steam generator 41 is adjusted through a PID algorithm to maintain the set temperature during the disinfection stage. An over-temperature protection circuit is provided, which automatically cuts off the heating power when the temperature exceeds the set upper limit. The door 11 is equipped with a door lock switch, and the motor 331 and the heating system cannot start when the door is not closed.

[0083] The specific operation method of this invention is as follows:

[0084] Open the cabinet door 11 and place the medical instruments to be sterilized layer by layer into the hollow instrument rack 223 of the rack 22. The rack 22 is aligned and connected to the first inlet of the rotating plate 21 through the second inlet on the hanging plate 224. After the loading is completed, close the cabinet door 11.

[0085] The control system first switches the reversing valve 43 to the second working position, connecting the steam generator 41 and the delivery pipe 31. The steam generator 41 starts working, heating the softened water to generate high-temperature saturated steam. Simultaneously, the motor 331 of the power assembly 33 starts, driving the delivery pipe 31 to rotate via belt drive, which in turn drives the rotating disk 21, the material rack 22, and the exhaust guide plate 32 to rotate synchronously. The high-temperature steam enters the interior of the exhaust guide plate 32 through the delivery pipe 31 and is ejected through multiple exhaust pipes 321 and exhaust heads 322. When the material rack 22 rotates to the vicinity of the exhaust guide plate 32, the end of the telescopic air inlet pipe 2212 of the rack air inlet assembly 221 automatically connects with the exhaust head 322, and the steam enters the side wall flow channel 2211, and is evenly blown onto the surface of the medical device from the air outlet. The material rack 22 maintains its orientation during the revolution, ensuring that each surface of the device is swept by steam at different positions, achieving high-temperature sterilization without dead angles. The sterilization program automatically ends after a preset time.

[0086] After the disinfection process is completed, the control system automatically switches the reversing valve 43 to the first working position, disconnects the steam generator 41, and connects the axial flow fan 42 to the conveying pipe 31. The steam generator 41 stops heating or shuts down, and the axial flow fan 42 starts, blowing ambient air or preheated airflow through the conveying pipe 31 and the rotating material rack 22 onto the instrument surface to remove residual moisture. The power unit 33 continues to run to ensure uniform drying. The drying process automatically ends after a preset time.

[0087] After the drying process is completed, the control system will issue a prompt sound and the equipment will stop operating. Open the door 11 and remove the rack 22 along with the sterilized and dried medical instruments from the rotating plate 21. If instruments need to be removed, the perforated instrument rack 223 can be pulled out from the support frame 222, or the entire rack 22 can be removed directly for further processing.

[0088] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A high-temperature sterilization device for medical devices, characterized in that, include: A disinfection box (1) has a door (11) connected to the outside of the box body and a disinfection chamber (12) connected to the inside of the box body. The opening of the disinfection chamber (12) corresponds to the door (11). The material rack mechanism (2) includes a rotating disk (21) and a material rack (22). The rotating disk (21) is symmetrically arranged at both ends of the inside of the disinfection chamber (12) and is slidably connected to the disinfection chamber (12). There are multiple material racks (22), and multiple material racks (22) are hung between two rotating disks (21). The flow guiding mechanism (3) includes a conveying pipe (31) that is rotatably connected to the end of the disinfection chamber (12) away from the door (11) and extends into the disinfection chamber (12). The conveying pipe (31) is connected to two rotating disks (21). An exhaust guide plate (32) is connected to the outside of the pipe body extending into the disinfection chamber (12). A power component (33) is connected to the end of the conveying pipe (31) extending to the outside. The power component (33) is used to drive the conveying pipe (31) to rotate so that the exhaust guide plate (32), the rotating disks (21) and the material rack (22) rotate around the conveying pipe (31). The frame of the material rack (22) is connected to a frame air intake assembly (221), which can be connected to the exhaust end of the exhaust guide plate (32) and guide the gas to blow into the medical device inside the frame. The gas system (4) includes a steam generator (41), an axial flow fan (42), and a reversing valve (43). The reversing valve (43) is connected to the bottom of the inside of the disinfection box (1). The outlet of the reversing valve (43) is connected to the inlet of the delivery pipe (31). The inlet of the reversing valve (43) is connected to the outlet of the steam generator (41) and the axial flow fan (42). The steam generator (41) is connected to the top of the disinfection box (1), and the axial flow fan (42) is connected to the bottom of the inside of the disinfection box (1).

2. The high-temperature sterilization device for medical devices according to claim 1, characterized in that, The rotating disk (21) near the box door (11) is provided with multiple first feed ports, the number of which is the same as the number of material racks (22); the material rack (22) includes a hanging plate (224), a support frame (222) and a hollow instrument rack (223). The hanging plate (224) has two plates, which are respectively located on the side surfaces of the two rotating disks (21) that are close to each other. The hanging plate (224) near the box door (11) is provided with a second feed port corresponding to the first feed port. The two ends of the support frame (222) are connected to the two adjacent hanging plates (224) by pins. The hollow instrument rack (223) can be inserted into the frame of the support frame (222) and is slidably connected to the frame of the support frame (222); the frame air intake assembly (221) is provided on the support frame (222).

3. The high-temperature sterilization device for medical devices according to claim 2, characterized in that, The frame air intake assembly (221) includes a side wall flow channel (2211) and a telescopic air intake pipe (2212). There are two side wall flow channels (2211), which are located on both sides of the frame of the support frame (222). The air outlet of the side wall flow channel (2211) faces the medical device inside the hollow instrument frame (223). The air outlet of the telescopic air intake pipe (2212) is connected to the air inlet of the side wall flow channel (2211). The telescopic air intake pipe (2212) is located at multiple top corners of the frame of the support frame (222) and is arranged along the top corner edge of the frame.

4. The high-temperature sterilization device for medical devices according to claim 3, characterized in that, The telescopic air intake pipe (2212) includes a guide pipe (2213) connected to the frame of the support frame (222). The air outlet end of the guide pipe (2213) is connected to the side wall flow channel (2211). A sliding pipe (2214) is slidably connected to the outside of the guide pipe (2213). A spring (2215) abuts against one side of the sliding pipe (2214). The spring (2215) is sleeved on the outside of the pipe body of the guide pipe (2213). The end of the sliding pipe (2214) away from the support frame (222) can be connected to the exhaust end of the exhaust guide plate (32).

5. The high-temperature sterilization device for medical devices according to claim 4, characterized in that, The exhaust guide plate (32) is a hollow plate. Multiple exhaust pipes (321) are connected inside the plate. One end of the multiple exhaust pipes (321) is connected to the pipe body of the conveying pipe (31). Multiple exhaust heads (322) are connected to the outside of the pipe body of the exhaust pipes (321). The end of the exhaust head (322) away from the exhaust pipe (321) is slidably connected to the surface of the plate of the exhaust guide plate (32).

6. The high-temperature sterilization device for medical devices according to claim 5, characterized in that, The exhaust guide plate (32) has a plurality of sliding grooves (323) corresponding to the exhaust pipe (321). The bottom surface of the sliding groove (323) is flush with the end of the exhaust head (322) away from the exhaust pipe (321). The groove of the sliding groove (323) is used for one end of the sliding pipe (2214) to slide.

7. The high-temperature sterilization device for medical devices according to claim 6, characterized in that, The sliding tube (2214) is connected to a sliding head (2215) at one end away from the support frame (222). The sliding head (2215) is slidably connected to the adjacent sliding groove (323). The sliding head (2215) is provided with a vent hole, and the hole body of the vent hole is connected to the inner cavity of the sliding tube (2214).

8. The high-temperature sterilization device for medical devices according to claim 1, characterized in that, The outlet of the reversing valve (43) is connected to a first pipe (431), the outlet of the first pipe (431) is connected to the inlet of the conveying pipe (31) and sealed by a bushing, the first inlet of the reversing valve (43) is connected to the exhaust end of the axial flow fan (42) through a second pipe (432), the second inlet of the reversing valve (43) is connected to the exhaust end of the steam generator (41) through a third pipe (433), and the water inlet of the steam generator (41) is connected to a water source, which is softened water.

9. The high-temperature sterilization device for medical devices according to claim 8, characterized in that, The reversing valve (43) has a first working position and a second working position. In the first working position, the first air inlet of the reversing valve (43) is connected to the second pipe (432). In the second working position, the second air inlet of the reversing valve (43) is connected to the third pipe (433).

10. The high-temperature sterilization device for medical devices according to claim 1, characterized in that, The power assembly (33) includes a motor (331) connected to the inner wall of the bottom of the disinfection box (1) and located on one side of the disinfection chamber (12). The motor (331) is connected to a rotating shaft (332) via a coupling. The rotating shaft (332) is connected to the disinfection box (1) via a bearing seat. A first pulley (333) is connected to the outer side of the rotating shaft (332) away from the motor (331) via a key. The first pulley (333) is connected to a second pulley (334) via a belt. The second pulley (334) is connected to the outer surface of the end of the conveying pipe (31) extending to the outside of the disinfection chamber (12) via a key.

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