A medical instrument steam sterilization apparatus

Abstract

The utility model discloses a medical instrument steam disinfection device, including the sterilizing jar, the top of sterilizing jar is equipped with the end cover, the lower surface of end cover is around the center periphery and is provided with a plurality of instrument hooking units, and the instrument hooking unit includes the fixed mounting seat of end cover, and the mounting seat is connected with rotatable and is equipped with the support rod through the pin shaft, and the support rod is connected with the support frame that extends downward, and the support frame is provided with a plurality of hangers along its length direction, and the bottom of support frame is rotatably connected with the movable frame, and one end of movable frame is hinged with movable seat, and the bottom of support frame moves inwards and is inclined when movable seat is placed on the top of conical fixed cover, and the support frame of being provided with a plurality of hangers is used to hook medical instrument, and the loading capacity is big, and after the end cover is covered, the support frame can be inclined inwards, so that each medical instrument can be suspended, and will not be stacked together, and the disinfection efficiency of device is improved, and the disinfection quality of device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medical device disinfection technology, specifically a medical device steam disinfection device. Background Technology

[0002] Non-disposable medical devices often require disinfection equipment after use. Common disinfection methods include ultraviolet light, far-infrared light, high temperature, ozone, etc. Steam disinfection is also a common method. Its working principle is to use a steam generator to transmit steam to the inside of the cabinet to disinfect the medical devices placed inside the cabinet.

[0003] In the prior art, such as the medical device sterilization container with announcement number CN217014796U, there is a container body. A fixing ring is fixedly connected to the top of the container body surface. A flipping frame is fixedly connected to the surface of the fixing ring. A connecting frame is rotatably connected to the inner cavity of the flipping frame. A sealing cover is fixedly connected to one side of the connecting frame. A movable frame is fixedly connected to the surface of the sealing cover. A connecting buckle is rotatably connected to the inner cavity of the movable frame. This utility model, through the combined use of the connecting buckle, locking block, and locking groove, achieves the function of connecting the container body and the sealing cover using fasteners. Furthermore, the connecting buckle is locked by a telescopic structure, achieving the function of sealing the container body and the sealing cover. This medical device sterilization container has the advantages of easy opening and closing and good sealing performance. In actual use, its structure is simple and reasonable, easy to process and mass-produce, and its operation is convenient, with a wide range of applications, making it convenient for users.

[0004] In the existing technology, when disinfecting medical devices such as hemostats and scissors, the tools need to be placed in a cleaning basket and then put into a disinfection tank for disinfection. However, after being placed in the cleaning basket, the tools are in a horizontal position. Since the tools cannot be stacked, only a small number of tools can be disinfected at a time, which is inefficient. Utility Model Content

[0005] This invention provides a steam sterilization device for medical devices, which can solve the problem that existing medical device sterilization devices cannot sterilize devices in all directions and have low sterilization efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a medical device steam sterilization device, comprising a sterilization tank, an end cap at the top of the sterilization tank, and multiple device hanging units arranged circumferentially around the lower surface of the end cap. Each device hanging unit includes a mounting base fixed to the end cap, and the mounting base is connected by a pin to a rotatable support rod. A downwardly extending support frame is connected to the support rod, and multiple hanging rods are arranged along the length of the support frame. A movable frame is rotatably connected to the bottom end of the support frame. The device is equipped with a connecting rod, the free ends of which are hinged to the movable seat. A conical fixing cover is fixedly installed in the middle of the bottom of the disinfection tank. The movable seat can be positioned on the top of the conical fixing cover. When the movable seat is placed on the top of the conical fixing cover, the movable frame swings, causing the bottom of the support frame to move inward and tilt. The support frame with multiple hanging rods is used to hang medical devices, which has a large load capacity. After the end cover is closed, the support frame can tilt inward, so that each medical device can be suspended in the air and will not be stacked together. This improves the disinfection efficiency of the device while ensuring the disinfection quality of the device.

[0007] Preferably, the top of the conical fixing cover is provided with a positioning post that matches the movable seat. The movable seat is sleeved on the outside of the positioning post, and the positioning post can play a guiding role to ensure that the movable seat can be positioned on the upper end of the conical fixing cover when the end cover is lowered.

[0008] Preferably, the sidewall of the conical fixing cover is provided with multiple through slots, and all of the through slots are designed with an arc shape. External disinfection steam can enter the disinfection tank through the through slots and directly impact the suspended medical device, resulting in high disinfection efficiency. In addition, the conical fixing cover can buffer the incoming high-pressure steam and reduce the impact on the medical device.

[0009] Preferably, the bottom of the disinfection tank is fixedly equipped with a steam inlet valve. One end of the steam inlet valve is connected to the inside of the conical fixed cover, and the other end of the steam inlet valve is fixedly equipped with a steam inlet. A pressure gauge can be installed on the steam inlet valve. The steam inlet valve can control the disinfection steam entering the disinfection tank, and can also automatically control the disinfection time and temperature.

[0010] Preferably, the hanging rod is hook-shaped and is positioned along both sides of the support frame, which can control the spacing between medical devices and prevent them from colliding with each other.

[0011] Preferably, the upper surface of the end cap is fixedly provided with multiple exhaust nozzles, and the bottom ends of the multiple exhaust nozzles extend to the lower surface of the end cap. The exhaust nozzles are used to control the discharge of gas in the disinfection tank. The multiple exhaust nozzles can be connected to corresponding control valves to control each exhaust nozzle separately.

[0012] Preferably, the outer wall of the end cap is provided with multiple positioning grooves, and the top of the outer wall of the sterilizer is provided with multiple positioning screws through pins. The positioning screws are arranged in a circular manner and are located inside the corresponding positioning grooves. The top of the positioning screws is provided with a positioning sleeve through threads, and the positioning sleeve is located above the end cap. The positioning screws, positioning sleeves and positioning grooves can realize a high-pressure sealing connection between the end cap and the sterilizer, and the disassembly and installation of the end cap are relatively quick.

[0013] Preferably, the bottom of the outer wall of the disinfection tank is provided with multiple support legs to provide stable support for the entire disinfection tank.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] With a simple structure, it uses a support frame with multiple hanging rods to hang medical devices, which has a large load capacity. After the end cap is closed, the support frame can tilt inward so that each medical device can be suspended in the air and will not be stacked together, which improves the disinfection efficiency of the device while ensuring the disinfection quality of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the end cap structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the support frame structure of this utility model.

[0020] In the diagram: 1. Disinfection tank; 2. End cap; 3. Mounting base; 4. Support rod; 5. Support frame; 6. Hanging rod; 7. Movable frame; 8. Connecting rod; 9. Movable seat; 10. Conical fixed cover; 11. Positioning column; 12. Through groove; 13. Steam inlet valve; 14. Steam inlet; 15. Exhaust nozzle; 16. Positioning groove; 17. Positioning screw; 18. Positioning screw sleeve; 19. Support leg. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] like Figure 1-4As shown, this utility model provides a solution to the problem that existing medical device sterilization devices cannot sterilize devices in all directions and have low sterilization efficiency. The utility model provides the following technical solution: a medical device steam sterilization device, including a sterilization tank 1. The top of the sterilization tank 1 is provided with an end cap 2. Multiple device hanging units are arranged circumferentially around the center of the lower surface of the end cap 2. Each device hanging unit includes a mounting base 3 fixed to the end cap 2. The mounting base 3 is connected to a rotatable support rod 4 via a pin. A downwardly extending support frame 5 is connected to the support rod 4. Multiple hanging rods 6 are arranged along the length of the support frame 5. The bottom end of the support frame 5... A movable frame 7 is rotatably connected, and a connecting rod 8 is provided at one end of the movable frame 7. The free ends of the connecting rod 8 are all hinged to the movable seat 9. A conical fixing cover 10 is fixedly provided at the bottom center of the disinfection tank 1. The movable seat 9 can be placed and positioned at the top of the conical fixing cover 10. When the movable seat 9 is placed at the top of the conical fixing cover 10, the movable frame 7 swings, causing the bottom of the support frame 5 to move inward and tilt. The support frame 5 with multiple hanging rods 6 is used to hang medical devices, which has a large load capacity. After the end cover 2 is closed, the support frame 5 can tilt inward, so that each medical device can be suspended in the air and will not be stacked together, which improves the disinfection efficiency of the device while ensuring the disinfection quality of the device.

[0023] Specifically, the instrument hanging units are evenly distributed along the circumference of the end cap, and together with the tiltable support frame 5, the instruments are arranged radially and suspended in the air. The distance between adjacent instruments is maintained at 5-8cm, allowing steam to penetrate the surface and gaps of the instruments without obstruction, achieving a 100% disinfection coverage. The tilt angle of the support frame 5 is controlled at 30-45°, which not only prevents instruments from slipping but also ensures that the instrument tips face downwards, reducing steam condensation residue and lowering the risk of secondary contamination. A single support frame 5 can hang 8-12 small instruments (such as hemostats and scissors), and the four hanging units can hang a total of 10-16 instruments, significantly improving disinfection efficiency.

[0024] The support rod 4 is hinged to the mounting base 3 via a stainless steel pin, with a rotation angle range of 0-45°. The pin surface is lubricated to ensure smooth, unobstructed rotation. The conical fixing cover 10 has a taper of 1:5, a top diameter of 80mm, a bottom diameter of 200mm, and a height of 250mm. It is made of 304 stainless steel and is welded to the bottom of the disinfection tank. The movable base is a circular steel plate with a 20mm through hole in the center for mating with the positioning post 11.

[0025] In this embodiment, the top of the conical fixed cover 10 is provided with a positioning post 11 that matches the movable seat 9. The movable seat 9 is sleeved on the outside of the positioning post 11. The positioning post 11 can play a guiding role, ensuring that the movable seat 9 can be positioned on the upper end of the conical fixed cover 10 when the end cover 2 is lowered. Specifically, the positioning post 11 and the conical fixed cover 10 are integrally formed, with a stable structure that can withstand the lateral force transmitted by the movable frame, preventing deformation after long-term use and ensuring the service life of the device. The positioning post 11 has a cylindrical structure, the same material as the conical fixed cover, a diameter of 20mm, a height of 50mm, and a 15° chamfer at the top to facilitate the insertion of the movable seat 9.

[0026] In this embodiment, the conical fixing cover 10 has multiple through slots 12 surrounding its sidewall, and all through slots 12 are arc-shaped. External sterilizing steam can enter the sterilization tank 1 through the through slots 12, directly impacting the suspended medical devices, resulting in high sterilization efficiency. The conical fixing cover 10 also buffers the incoming high-pressure steam, reducing impact on the medical devices. Specifically, the arc-shaped through slots 12 are spirally distributed along the sidewall of the conical fixing cover 10, guiding the steam to rise in a spiral shape, increasing the contact area between the steam and the devices, and shortening the sterilization time. The arc-shaped through slots 12 disperse the impact force of the high-pressure steam, controlling the steam flow rate at 0.5-1 m / s, preventing devices from colliding or slipping due to steam impact, and reducing oxidation damage to the device surface. There are six through slots 12, evenly distributed along the sidewall of the conical fixing cover, with an angle of 60° between adjacent through slots.

[0027] In this embodiment, a steam inlet valve 13 is fixedly installed at the bottom of the disinfection tank 1. One end of the steam inlet valve 13 is connected to the interior of the conical fixed cover 10, and the other end of the steam inlet valve 13 is fixedly provided with a steam inlet 14. A pressure gauge can be installed on the steam inlet valve 13. The steam inlet valve 13 can control the disinfection steam entering the disinfection tank 1 and can also automatically control the disinfection time and temperature. Specifically, the steam inlet valve 13 can be an electromagnetic control valve (model: ZQDF-15), which can accurately control the steam pressure between 0.1-0.3MPa, adapting to the pressure requirements of medical steam disinfection, ensuring that the steam temperature is stable at 121-134℃, and killing stubborn microorganisms such as spores. The valve is connected to the interior of the conical fixed cover, and the steam enters the disinfection tank after being buffered by the conical fixed cover, avoiding direct impact of high-pressure steam on the instruments. At the same time, the conical fixed cover plays a role in steam collection, so that the steam is evenly diffused. The steam inlet 14 adopts a standard DN20 interface, which can be directly connected to the hospital steam pipeline network or a dedicated steam generator, making installation convenient and highly versatile.

[0028] In this embodiment, the hanging rod 6 is hook-shaped and is positioned along both sides of the support frame 5. This allows for control of the spacing between medical devices, preventing them from colliding. The hook-shaped rod 6 is L-shaped with a 90° opening angle and a 25mm hook length, securely attaching the device handles and preventing slippage due to steam impact or slight device movement during sterilization. The hanging rod 6 is welded to the support frame 5 using a full-weld process, achieving a tensile strength ≥300MPa, capable of supporting devices weighing up to 5kg, thus meeting the mounting requirements for common small medical devices.

[0029] In this embodiment, a plurality of exhaust nozzles 15 are fixedly provided on the upper surface of the end cap 2, and the bottom ends of the plurality of exhaust nozzles 15 extend to the lower surface of the end cap 2. The exhaust nozzles 15 are used to control the discharge of gas in the sterilization tank 1. The plurality of exhaust nozzles 15 can be connected to corresponding control valves to control each exhaust nozzle 15 separately. Specifically, the plurality of exhaust nozzles 15 are evenly distributed around the circumference of the end cap 2 to ensure uniform pressure release in the sterilization tank 1, avoid excessive local pressure leading to end cap seal failure, and prevent rapid cooling of instruments due to rapid steam discharge, thereby reducing thermal stress deformation of instruments. The exhaust nozzles 15 can be equipped with independent solenoid valves, and the exhaust volume can be adjusted by the control system. In the early stage of sterilization, a small amount of air can be discharged from the tank to improve steam purity; in the later stage of sterilization, pressure can be released quickly to shorten the operation cycle.

[0030] In this embodiment, the outer wall of the end cap 2 is provided with a plurality of positioning grooves 16, and the top of the outer wall of the disinfection tank 1 is provided with a plurality of positioning screws 17 via pins. The positioning screws 17 are arranged in a circular manner and are located inside the corresponding positioning grooves 16. The top of the positioning screws 17 is provided with a positioning sleeve 18 via threads, and the positioning sleeve 18 is located above the end cap 2. The positioning screws 17, positioning sleeves 18 and positioning grooves 16 can realize a high-pressure sealed connection between the end cap 2 and the disinfection tank 1, and the disassembly and installation of the end cap 2 are relatively quick. Specifically, the thread fit accuracy between the positioning screws 17 and the positioning sleeves 18 is 6H / 6g. After tightening, the lower surface of the positioning sleeve is tightly fitted with the upper surface of the end cap, and together with the sealing gasket at the bottom of the end cap, a high-pressure seal is achieved, with no steam leakage under a pressure of 0.3MPa. The positioning screw 17 can rotate around the pin shaft. When installing the end cover 2, simply rotate the positioning screw 17 into the positioning groove 16 and tighten the positioning screw sleeve 18. This method is more efficient than the traditional bolt fixing method.

[0031] In this embodiment, the bottom of the outer wall of the disinfection tank 1 is provided with a plurality of support legs 19, which can stably support the entire disinfection tank 1; specifically, the bottom of the support legs 19 is equipped with anti-slip rubber pads to increase the friction with the ground and prevent the device from shifting due to steam flow or shaking of the equipment during the disinfection process. At the same time, the rubber pads play a role in buffering and shock absorption, reducing noise.

[0032] As a specific operation method in this embodiment:

[0033] Disinfection procedure:

[0034] Hanging medical devices: Loosen the positioning screw sleeve 18, flip the positioning screw 17, lift the end cover 2, open the end cover 2. At this time, the movable seat 9 is disengaged from the conical fixing cover 10, and the support frame 5 is in a vertical state under the action of gravity. Hang small medical devices such as hemostats and scissors one by one on the hanging rod to ensure that each device is hung independently and does not come into contact with adjacent devices.

[0035] Closing the end cap: Place the end cap 2 on the top of the sterilization tank, so that the movable seat 9 fits into the positioning post 11 of the conical fixing cover 10, flip the positioning screw 17 into the positioning groove 16, and tighten the positioning screw sleeve 18 to achieve the sealing and fixing of the end cap 2. At this time, the movable frame 7 swings and drives the bottom of the support frame 5 to tilt inward by 30-45°, and the instruments are arranged radially and suspended in the air.

[0036] Start the disinfection program: Set the disinfection temperature, such as 121℃, and the disinfection time, 20 minutes through the PLC control system. Start the steam generator and open the steam inlet valve 13. The steam enters the conical fixed cover 10 through the steam inlet 14 and the steam inlet valve 13. It enters the disinfection tank 1 in a spiral shape through the arc-shaped through groove 12, and evenly wraps the suspended medical device.

[0037] Exhaust and pressure relief: In the initial stage of disinfection, air in the tank is discharged through exhaust nozzle 15 to improve steam purity; after disinfection, the PLC control system automatically closes the steam inlet valve 13 and opens the exhaust nozzle solenoid valve to slowly depressurize to atmospheric pressure, with a depressurization time of 5 minutes.

[0038] Remove the instrument: After depressurization, loosen the positioning sleeve 18, flip the positioning screw 17, lift the end cap, and remove the sterilized medical instrument to complete the sterilization operation.

[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0040] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A medical device steam sterilization device, comprising a sterilization tank (1), characterized in that: The disinfection tank (1) has an end cap (2) at its top. Multiple instrument hanging units are arranged circumferentially around the lower surface of the end cap (2). Each instrument hanging unit includes a mounting base (3) fixed to the end cap (2). The mounting base (3) is connected to a rotatable support rod (4) via a pin. A downwardly extending support frame (5) is connected to the support rod (4). Multiple hanging rods (6) are arranged along the length of the support frame (5). The bottom end of the device is rotatably connected to a movable frame (7). One end of the movable frame (7) is provided with a connecting rod (8). The free ends of the connecting rod (8) are all hinged to the movable seat (9). A conical fixing cover (10) is fixedly provided in the middle of the bottom end of the disinfection tank (1). The movable seat (9) can be placed and positioned at the top of the conical fixing cover (10). When the movable seat (9) is placed at the top of the conical fixing cover (10), the movable frame (7) swings, causing the bottom of the support frame (5) to move inward and tilt.

2. The medical device steam sterilization device according to claim 1, characterized in that: The top of the conical fixing cover (10) is provided with a positioning post (11) that matches the movable seat (9), and the movable seat (9) is sleeved on the outside of the positioning post (11).

3. The medical device steam sterilization device according to claim 1, characterized in that: The sidewall of the conical fixing cover (10) is provided with multiple through slots (12), and all the through slots (12) are designed with an arc shape.

4. The medical device steam sterilization device according to claim 3, characterized in that: The bottom end of the disinfection tank (1) is fixedly provided with a steam inlet valve (13), one end of which is connected to the inside of the conical fixed cover (10), and the other end of which is fixedly provided with a steam inlet (14).

5. The medical device steam sterilization device according to claim 1, characterized in that: The hanging rod (6) is hook-shaped and is positioned along both sides of the support frame (5).

6. The medical device steam sterilization device according to claim 1, characterized in that: The upper surface of the end cap (2) is fixedly provided with a plurality of exhaust nozzles (15), and the bottom ends of the plurality of exhaust nozzles (15) extend to the lower surface of the end cap (2).

7. The medical device steam sterilization device according to claim 1, characterized in that: The outer wall of the end cap (2) is provided with a plurality of positioning grooves (16), and the top of the outer wall of the disinfection tank (1) is provided with a plurality of positioning screws (17) through a pin. The positioning screws (17) are arranged in a circular manner and are located inside the corresponding positioning grooves (16). The top of the positioning screws (17) is provided with a positioning sleeve (18) through a thread, and the positioning sleeve (18) is located above the end cap (2).

8. The medical device steam sterilization device according to claim 1, characterized in that: The disinfection tank (1) is surrounded by multiple support legs (19) at the bottom of its outer side wall.

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