A sterilization device and method for automatically replacing a drainage bag

Abstract

The application relates to the technical field of disinfection devices, in particular to an automatic disinfection device and method for replacing a drainage bag, which comprises an automatic replacement frame, the inside bottom end of the automatic replacement frame is provided with a feeding mechanism, one side of the automatic replacement frame is provided with a replacement mechanism, one side of the replacement mechanism is provided with a clamping mechanism, one side of the clamping mechanism is provided with a sterilization mechanism, the feeding mechanism comprises two fixed frames fixedly connected with the bottom end of the inside of the automatic replacement frame, when the automatic replacement of the drainage bag is carried out, the second clamping barrel is closed after being close to the first clamping barrel, then the first telescopic spring in the first clamping barrel is elastically telescoped to push the first butt joint barrel in the limiting ring, the extrusion block in the second clamping barrel is jacked by the first butt joint barrel, is telescoped under the telescoping of the second telescopic spring, the infusion channel port in the second clamping barrel is exposed, meanwhile, the liquid outlet hole and the infusion channel are in alignment, and the drainage is used.

Description

Technical Field

[0001] This invention relates to the field of disinfection device technology, specifically to a disinfection device and method for automatically replacing drainage bags. Background Technology

[0002] A drainage bag generally refers to a transparent plastic bag attached to the end of a tube after surgery to collect the drained fluid, such as blood or fluid from inside the body or deep within a surgical site.

[0003] The "Integrated Low Negative Pressure Abdominal Drainage Device" disclosed in application number "CN11506626B" is also an increasingly mature technology. It "includes a fixing frame and a low negative pressure suction device mounted on the fixing frame. Several drainage bottles are connected below the low negative pressure suction device, and each drainage bottle is connected to a waste fluid treatment device. The waste fluid treatment device includes a waste fluid bag. Each drainage bottle has an outlet at its bottom, and the waste fluid bag is connected to the outlet via a connecting component. A puncture component is mounted on each drainage bottle, with one bottom end of the puncture component placed inside the drainage bottle and movably connected to the connecting component." This invention uses a waste fluid treatment device for initial disinfection of the drainage fluid, making the cleaning process safer. When the fluid in the drainage bottle reaches a specified volume, an alarm mechanism sounds, prompting medical personnel to clean it. Limiting components and pushing components facilitate the replacement of the waste fluid treatment device.

[0004] Changing drainage bags is a common surgical procedure in clinical practice. Nurses need to assess the drainage situation, separate the drainage bag, disinfect it with three cotton swabs, and then connect the new drainage bag. The aseptic requirements are relatively high. After the replacement, the drainage patency needs to be observed, which increases the nursing burden. In addition, manual replacement of drainage bags can contaminate the drainage interface with pollutants, making it impossible to automatically connect the new drainage bag. Manual replacement or installation is required, and the interface cannot be disinfected.

[0005] Therefore, it is necessary to provide a disinfection device and method for automatically replacing drainage bags to solve the above problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a disinfection device and method for automatically replacing drainage bags, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a disinfection device for automatically replacing drainage bags, comprising an automatic replacement frame, a feeding mechanism provided at the bottom of the automatic replacement frame, a replacement mechanism provided on one side of the automatic replacement frame, a locking mechanism provided on one side of the replacement mechanism, and a sterilization mechanism provided on one side of the locking mechanism.

[0008] Preferably, the feeding mechanism includes two fixed frames fixedly connected to one side of the bottom of the automatic changing frame. Each fixed frame has several placement slots fixedly installed on its top. A first electric telescopic rod is fixedly connected inside the placement slot. A push plate is fixedly connected to the telescopic end of the first electric telescopic rod. Slide rails are fixedly connected to both sides of the inside of the automatic changing frame. A feeding frame is slidably connected to one side of the slide rails. Rotary rollers are movably connected to both ends of the feeding frame. Turntables are movably connected to both ends of the rotary rollers. A feeding belt is driven between the outer sides of the turntables. A first drive motor is fixedly connected to one side of the bottom of the feeding frame. A main turntable is driven by the drive end of the first drive motor. The outer side of the main turntable is driven by the feeding belt. A second electric telescopic rod is fixedly connected to the bottom of the first drive motor.

[0009] Preferably, the replacement mechanism includes a second drive motor fixedly connected to one side of the automatic replacement frame, a replacement turntable fixedly connected to the transmission end of the second drive motor, a plurality of slots being formed on the surface of the replacement turntable, a fixed seat being fixedly connected to one side of the interior of each slot, a first engaging block being fixedly connected to one side of the fixed seat, a second engaging block being provided at the corresponding position of the first engaging block, an L-shaped fixing frame being fixedly connected to the bottom of the second engaging block, two guide rods being fixedly connected to one side of the L-shaped fixing frame, the outer sides of the two guide rods being interlocked with the mounting block fixedly installed at the bottom of the slot, a telescopic spring being sleeved on the outer side of the guide rods, and a drainage bag being engaged between the inner sides of the second engaging block and the first engaging block.

[0010] Preferably, the locking mechanism includes a first locking cylinder fixedly connected to one side of the drainage bag, a limit ring fixedly connected inside the first locking cylinder, a first docking cylinder inserted inside the limit ring, a first telescopic spring sleeved on the outside of the first docking cylinder, an outlet hole at one end of the first docking cylinder, a second locking cylinder at a second corresponding position of the first locking cylinder, a squeezing block at one end of the second locking cylinder, a second telescopic spring fixedly connected to one side of the squeezing block, and infusion channels on both sides of the second locking cylinder.

[0011] Preferably, the sterilization mechanism includes a third electric telescopic rod fixedly connected to one side of the automatic changing rack. A sterilization frame is installed at the telescopic end of the third electric telescopic rod. A first servo motor is fixedly connected to the top side of the sterilization frame. A small main turntable is fixedly connected to the transmission end of the first servo motor. A transmission belt is driven to the outer side of the small main turntable. A guide rod is fixedly connected to one side of the sterilization frame. A moving block is inserted through the outer side of the guide rod. The top of the moving block is fixedly connected to the transmission belt. A sterilization wiping sponge is fixedly connected to the inner side of the moving block. One end of the transmission belt is driven to the outer side of the small main turntable.

[0012] A disinfection method for automatically replacing drainage bags, comprising the aforementioned disinfection device for automatically replacing drainage bags, including the following steps:

[0013] Step 1: Arrange several drainage bags in the placement slots on the two-layer fixed frame. When it is necessary to replace the drainage bags, the used drainage bags in the replacement mechanism are disengaged from the interface through the locking mechanism. The replacement turntable rotates, so that the new drainage bags are brought to the interface alignment position on the sterilization mechanism.

[0014] Step 2: The interface is disinfected and sterilized by the sterilization sponge on the sterilization mechanism, so that the new drainage bag can be installed and fitted with the interface.

[0015] Step 3: The feeding mechanism replenishes the drainage bags in the empty positions on the replacement mechanism. The drainage bags are transported to the empty positions on the replacement turntable by the feeding mechanism, and the drainage bags are engaged by the first and second locking blocks to complete the automatic replacement of the drainage bags.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention provides a disinfection device and method for automatically replacing drainage bags:

[0018] 1. The automatic interface disinfection process is completed while a new drainage bag is connected to avoid contamination. The first servo motor, the small main turntable, and the conveyor belt work together to rotate, which facilitates the left and right sliding of the moving block on the guide rod. The movement of the moving block causes the sterilization wiping sponge to wipe and disinfect the interface on the locking mechanism. The third electric telescopic rod facilitates the locking mechanism on the sterilization frame to close or separate from the drainage bag interface.

[0019] 2. During the automatic replacement of the drainage bag, the second clamping tube closes after approaching the first clamping tube. Then, the first telescopic spring inside the first clamping tube elastically extends and retracts, pushing the first docking tube inside the limiting ring. The first docking tube pushes the squeezing block inside the second clamping tube, which retracts inward under the extension and retraction of the second telescopic spring, exposing the infusion channel opening inside the second clamping tube. At the same time, the liquid outlet is aligned with the infusion channel for drainage.

[0020] 3. When replacing the drainage bag, the rotation of the second drive motor drives the replacement turntable to rotate, thereby rotating and replacing the drainage bag on the turntable. When fixing the drainage bag, the extension and retraction of the telescopic spring on the guide rod pulls the L-shaped fixing bracket at one end of the guide rod, causing the second locking block and the first locking block on the L-shaped fixing bracket to open and close, thereby facilitating the fixing of the drainage bag and enabling automatic separation and connection of the drainage bag opening for convenient drainage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is one of the structural schematic diagrams of the present invention;

[0023] Figure 3 This is a schematic diagram of the second electric telescopic rod structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the first electric telescopic pole structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the engaging mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the sterilization mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the replacement mechanism structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the slotted structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the limiting ring structure of the present invention.

[0030] In the diagram: 1. Automatic changing frame; 2. Feeding mechanism; 201. Fixed frame; 202. Placement slot; 203. First electric telescopic rod; 204. Push plate; 205. Slide rail; 206. Feeding rack; 207. Rotary roller; 208. Turntable; 209. Feeding belt; 2010. First drive motor; 2011. Main turntable; 2012. Second electric telescopic rod;

[0031] 3. Replacement mechanism; 301. Second drive motor; 302. Replacement turntable; 303. Slotting; 304. Fixing base; 305. First locking block; 306. Second locking block; 307. L-shaped fixing frame; 308. Guide rod; 309. Mounting block; 3010. Telescopic spring;

[0032] 4. Engaging mechanism; 401. First engaging cylinder; 402. Limiting ring; 403. First connecting cylinder; 404. First telescopic spring; 405. Liquid outlet; 406. Second engaging cylinder; 407. Squeezing block; 408. Second telescopic spring; 409. Infusion channel;

[0033] 5. Sterilization mechanism; 501. Third electric telescopic rod; 502. Sterilization frame; 503. First servo motor; 504. Small main turntable; 505. Conveyor belt; 506. Guide rod; 507. Moving block; 508. Sterilization wiping sponge; 509. Small slave turntable. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0036] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "configuration" should be interpreted broadly. For example, they can refer to a fixed connection or configuration, a detachable connection or configuration, or an integral connection or configuration. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] like Figures 1-9 As shown, the present invention proposes an automatic replacement disinfection device for drainage bags, including an automatic replacement frame 1, a feeding mechanism 2 provided at the bottom of the automatic replacement frame 1, a replacement mechanism 3 provided on one side of the automatic replacement frame 1, a locking mechanism 4 provided on one side of the replacement mechanism 3, and a sterilization mechanism 5 provided on one side of the locking mechanism 4.

[0039] The feeding mechanism 2 includes two fixed frames 201 fixedly connected to one side of the bottom of the automatic changing frame 1. Each fixed frame 201 has several placement slots 202 fixedly installed on its top. A first electric telescopic rod 203 is fixedly connected inside the placement slot 202. A push plate 204 is fixedly connected to the telescopic end of the first electric telescopic rod 203. Slide rails 205 are fixedly connected to both sides of the inside of the automatic changing frame 1. A feeding frame 206 is slidably connected to one side of the slide rail 205. Rollers 207 are movably connected to both ends of the feeding frame 206. Turntables 208 are movably connected to both ends of the rollers 207. A feeding belt 209 is driven between the outer sides of the turntables 208. A first drive motor 2010 is fixedly connected to one side of the bottom of the feeding frame 206. A main turntable 2011 is driven to the drive end of the first drive motor 2010. The outer side of the main turntable 2011 is driven to the feeding belt 209. A second electric telescopic rod 2012 is fixedly connected to the bottom of the first drive motor 2010.

[0040] In practical use, during automatic replacement of drainage bags, for ease of replacement, a number of drainage bags are stored inside the placement slot 202 via two layers of fixed frames 201. During replacement, the extension and retraction of the corresponding first electric telescopic rod 203 pushes the push plate 204, causing the push plate 204 to push the drainage bag out of the placement slot 202. The extension and retraction of the second electric telescopic rod 2012 pushes the feeding rack 206 to raise its horizontal height, making it parallel to one of the fixed frames 201, facilitating the pushing of unused drainage bags onto the feeding belt 209. Then, the extension and retraction of the second electric telescopic rod 2012 adjusts the feeding rack 206 to be horizontally aligned with the replacement mechanism 3. The rotation of the first drive motor 2010 drives the main turntable 2011 to rotate, causing the feeding belt 209 to rotate in cooperation with the two sets of turntables 208, facilitating the transport of drainage bags to the replacement mechanism 3 for installation and use of new drainage bags.

[0041] The replacement mechanism 3 includes a second drive motor 301 fixedly connected to one side of the automatic replacement frame 1. The transmission end of the second drive motor 301 is fixedly connected to a replacement turntable 302. The surface of the replacement turntable 302 is provided with a plurality of slots 303. A fixed seat 304 is fixedly connected to one side of the interior of each slot 303. A first locking block 305 is fixedly connected to one side of the fixed seat 304. A second locking block 306 is provided at the corresponding position of the first locking block 305. An L-shaped fixing frame 307 is fixedly connected to the bottom end of the second locking block 306. Two guide rods 308 are fixedly connected to one side of the L-shaped fixing frame 307. The outer sides of the two guide rods 308 are inserted and connected to the mounting block 309 fixedly installed at the bottom of the slot 303. A telescopic spring 3010 is sleeved on the outer side of the guide rods 308. A drainage bag is engaged between the inner sides of the second locking block 306 and the first locking block 305.

[0042] In practical use, when replacing the drainage bag, the rotation of the second drive motor 301 drives the replacement turntable 302 to rotate, so that the drainage bag on the replacement turntable 302 can be rotated and replaced during the rotation of the replacement turntable 302. When fixing the drainage bag, the telescopic spring 3010 on the guide rod 308 pulls the L-shaped fixing bracket 307 at one end of the guide rod 308, so that the second locking block 306 and the first locking block 305 on the L-shaped fixing bracket 307 can open and close, thereby facilitating the fixing of the drainage bag and facilitating the automatic separation and connection of the drainage bag opening, making it convenient for drainage use.

[0043] The locking mechanism 4 includes a first locking cylinder 401 fixedly connected to one side of the drainage bag. A limit ring 402 is fixedly connected inside the first locking cylinder 401. A first docking cylinder 403 is inserted inside the limit ring 402. A first telescopic spring 404 is sleeved on the outside of the first docking cylinder 403. A liquid outlet hole 405 is opened at one end of the first docking cylinder 403. A second locking cylinder 406 is provided at the second corresponding position of the first locking cylinder 401. A squeezing block 407 is provided at one end inside the second locking cylinder 406. A second telescopic spring 408 is fixedly connected to one side of the squeezing block 407. Infusion channels 409 are opened on both sides of the second locking cylinder 406.

[0044] In practical use, when automatically replacing the drainage bag, the second clamping tube 406 closes after approaching the first clamping tube 401. Then, the first telescopic spring 404 inside the first clamping tube 401 elastically extends and retracts, pushing the first docking tube 403 inside the limiting ring 402. The first docking tube 403 pushes the squeezing block 407 inside the second clamping tube 406, which retracts inward under the extension and retraction of the second telescopic spring 408, exposing the infusion channel opening inside the second clamping tube 406. At the same time, the liquid outlet 405 is aligned with the infusion channel 409 for drainage.

[0045] The sterilization mechanism 5 includes a third electric telescopic rod 501 fixedly connected to one side of the automatic changing rack 1. A sterilization frame 502 is installed at the telescopic end of the third electric telescopic rod 501. A first servo motor 503 is fixedly connected to one side of the top of the sterilization frame 502. A small main turntable 504 is fixedly connected to the transmission end of the first servo motor 503. A transmission belt 505 is transmittedly connected to the outer side of the small main turntable 504. A guide rod 506 is fixedly connected to one side of the sterilization frame 502. A moving block 507 is inserted and connected to the outer side of the guide rod 506. The top of the moving block 507 is fixedly connected to the transmission belt 505. A sterilization wiping sponge 508 is fixedly connected to the inner side of the moving block 507. One end of the transmission belt 505 is transmittedly connected to the outer side of the small slave turntable 509.

[0046] In practical use, while automatically disinfecting the interface and connecting a new drainage bag to avoid contamination, the rotation of the first servo motor 503 drives the small main turntable 504 to rotate. The rotation of the small main turntable 504 drives the transmission belt 505 to rotate, which facilitates the left and right sliding of the transmission moving block 507 on the guide rod 506. The movement of the moving block 507 drives the sterilization wiping sponge 508 to wipe and disinfect the interface on the locking mechanism 4. The third electric telescopic rod 501 facilitates the closing or separation of the locking mechanism 4 on the sterilization frame 502 from the drainage bag interface.

[0047] A disinfection method for automatically replacing drainage bags includes the following steps:

[0048] Step 1: Arrange several drainage bags in the placement slots 202 on the two-layer fixed frame 201. When the drainage bags need to be replaced, the drainage bags used in the replacement mechanism 3 are disengaged from the interface through the locking mechanism 4, and the replacement turntable 302 is rotated so that the new drainage bags are brought to the interface alignment position on the sterilization mechanism 5.

[0049] Step 2: The interface is disinfected and sterilized by the sterilization wiping sponge 508 on the sterilization mechanism 5, so that the new drainage bag can be installed with the interface.

[0050] Step 3: The feeding mechanism 2 replenishes the drainage bags at the empty positions on the replacement mechanism 3. The feeding mechanism 2 transports the drainage bags to the empty positions on the replacement turntable 302. The drainage bags are then engaged between the first locking block 305 and the second locking block 306 to complete the automatic replacement of the drainage bags.

[0051] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0052] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A disinfection device for automatically replacing drainage bags, comprising an automatic replacement frame (1), characterized in that, The automatic changing rack (1) is provided with a feeding mechanism (2) at its inner bottom, a changing mechanism (3) is provided on one side of the automatic changing rack (1), a locking mechanism (4) is provided on one side of the changing mechanism (3), and a sterilization mechanism (5) is provided on one side of the locking mechanism (4). The replacement mechanism (3) includes a second drive motor (301) fixedly connected to one side of the automatic replacement frame (1). The transmission end of the second drive motor (301) is fixedly connected to a replacement turntable (302). The surface of the replacement turntable (302) is provided with a plurality of slots (303). A fixing seat (304) is fixedly connected to one side of the interior of each slot (303). A first locking block (305) is fixedly connected to one side of the fixing seat (304). The first locking block (305) is provided with a corresponding position. There is a second locking block (306), and an L-shaped fixing frame (307) is fixedly connected to the bottom end of the second locking block (306). Two guide rods (308) are fixedly connected to one side of the L-shaped fixing frame (307). The outer sides of the two guide rods (308) are interlocked with the mounting block (309) fixedly installed at the bottom of the slot (303). A telescopic spring (3010) is sleeved on the outer side of the guide rods (308). A drainage bag is locked between the inner sides of the second locking block (306) and the first locking block (305).

2. The disinfection device for automatically replacing drainage bags according to claim 1, characterized in that: The feeding mechanism (2) includes two fixed frames (201) fixedly connected to one side of the bottom of the automatic changing frame (1). Each fixed frame (201) has several placement slots (202) fixedly installed on its top. A first electric telescopic rod (203) is fixedly connected inside the placement slot (202). A push plate (204) is fixedly connected to the telescopic end of the first electric telescopic rod (203). Slide rails (205) are fixedly connected to both sides of the automatic changing frame (1). A feeding frame (206) is slidably connected to one side of the slide rail (205). A rotating roller (207) is movably connected to both ends of the feeding frame (206). A turntable (208) is movably connected to both ends of the rotating roller (207).

3. The disinfection device for automatically replacing drainage bags according to claim 2, characterized in that: A feeding belt (209) is connected to the outer side of the turntable (208). A first drive motor (2010) is fixedly connected to one side of the bottom of the feeding rack (206). The drive end of the first drive motor (2010) is connected to the main turntable (2011). The outer side of the main turntable (2011) is connected to the feeding belt (209). A second electric telescopic rod (2012) is fixedly connected to the bottom end of the first drive motor (2010).

4. The disinfection device for automatically replacing drainage bags according to claim 1, characterized in that: The locking mechanism (4) includes a first locking cylinder (401) fixedly connected to one side of the drainage bag. A limit ring (402) is fixedly connected inside the first locking cylinder (401). A first docking cylinder (403) is inserted inside the limit ring (402). A first telescopic spring (404) is sleeved on the outside of the first docking cylinder (403). A liquid outlet hole (405) is opened at one end of the first docking cylinder (403). A second locking cylinder (406) is provided at the second corresponding position of the first locking cylinder (401). A squeezing block (407) is provided at one end inside the second locking cylinder (406). A second telescopic spring (408) is fixedly connected to one side of the squeezing block (407). Infusion channels (409) are opened on both sides of the second locking cylinder (406).

5. The disinfection device for automatically replacing drainage bags according to claim 1, characterized in that: The sterilization mechanism (5) includes a third electric telescopic rod (501) fixedly connected to one side of the automatic changing frame (1). A sterilization frame (502) is installed at the telescopic end of the third electric telescopic rod (501). A first servo motor (503) is fixedly connected to one side of the top of the sterilization frame (502). A small main turntable (504) is fixedly connected to the transmission end of the first servo motor (503). A transmission belt (505) is connected to the outer side of the small main turntable (504). A guide rod (506) is fixedly connected to one side of the sterilization frame (502).

6. The disinfection device for automatically replacing drainage bags according to claim 5, characterized in that: A movable block (507) is inserted and connected to the outside of the guide rod (506). The top of the movable block (507) is fixedly connected to the transmission belt (505). A bactericidal wiping sponge (508) is fixedly connected to the inside of the movable block (507). One end of the transmission belt (505) is connected to the outside of the small turntable (509).

7. A disinfection method for automatically replacing drainage bags, comprising the disinfection device for automatically replacing drainage bags as described in any one of claims 1-6, characterized in that, Includes the following steps: Step 1: Arrange several drainage bags in the placement slots (202) on the two-layer fixed frame (201). When the drainage bags need to be replaced, the drainage bags used on the replacement mechanism (3) are disengaged from the interface through the locking mechanism (4), and the replacement turntable (302) is rotated so that the new drainage bags are brought to the interface alignment position on the sterilization mechanism (5). Step 2: The interface is disinfected and sterilized by the sterilization wiping sponge (508) on the sterilization mechanism (5), so that the new drainage bag can be installed with the interface. Step 3: The feeding mechanism (2) replenishes the drainage bag at the empty position on the replacement mechanism (3). The feeding mechanism (2) transports the drainage bag to the empty position on the replacement turntable (302). The drainage bag is engaged between the first locking block (305) and the second locking block (306) to complete the automatic replacement of the drainage bag.

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