Multifunctional negative pressure drainage device
By designing a multifunctional negative pressure drainage device, convenient disassembly and high-precision connection is achieved using threaded structures and limiting projections, the problems of inconvenience and high cost in the prior art are solved, and operating efficiency and adaptability are improved.
Patent Information
- Application Number
- CN202421036749.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The existing negative pressure drainage device is inconvenient to disassemble when replacing the drainage bag, time-consuming and labor-intensive, and expensive, so it cannot effectively adapt to the needs of different scenarios.
A multifunctional negative pressure drainage device is designed, including a first drainage container, a second drainage container, an adapter and a drainage tube, and a detachable connection is achieved through a threaded structure, a limiting projection and a sealing ring are provided to improve the connection accuracy and sealing effect, and the suspension and adjustment of the container are achieved through a lanyard and a mounting frame.
It improves the removal efficiency of drainage pipes and drainage bags, reduces operation difficulty and cost, adapts to the needs of different scenarios, and improves metrology accuracy and sealing effect.
Smart Images
Figure CN222549791U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drainage, in particular to a multifunctional negative pressure drainage device. Background Art
[0002] After surgery, there will be some cavities at the junction of the wound surface, and there will be some necrotic tissue at the wound surface, and there will be liquid secretions, all of which will cause slow wound healing. Taking the surgery on patients with chest and abdominal cavities as an example, there will be a lot of blood and waste fluid in the chest and abdominal cavities during the operation, which will affect the surgical field of view. If there is interference from necrotic tissue or liquid secretions after the operation, it may cause serious consequences such as cell necrosis. Therefore, the commonly used technique during or after surgery is to place a thin tube in the chest and abdominal cavities, and then use a negative pressure drainer to perform negative pressure suction on the thin tube, and remove the liquid in time. Negative pressure drainage technology uses the principle of negative pressure suction to form a negative pressure in the drainage bottle, suck out various secretions, and achieve the purpose of draining pollutants. There are various types of negative pressure drainage devices currently used in clinical practice. Negative pressure drainage can be used to drain abdominal drainage fluid after abdominal surgery, and can also be used for wound drainage, or to connect a gastric tube to drain gastric juice.
[0003] The inventors found in their research that the negative pressure drainage device in the prior art has at least the following disadvantages:
[0004] The negative pressure bag and the drainage tube are connected by snap-fitting. When replacing the negative pressure bag, the negative pressure bag and the drainage tube need to be disassembled at the snap-fitting position. In order to ensure the sealing during connection, the snap-fitting position is firmly combined, which makes disassembly inconvenient, time-consuming, labor-intensive, and inefficient. In addition, different types of drainage bags need to be replaced for different scenarios, which is costly. Utility Model Content
[0005] The purpose of the utility model is to provide a multifunctional negative pressure drainage device, which can reduce the difficulty of disassembling the drainage tube and the drainage bag, save time and labor, improve operating efficiency, and has diversified functions, can adapt to different scenarios, and has low cost.
[0006] The embodiment of the utility model is achieved as follows:
[0007] In a first aspect, the utility model provides a multifunctional negative pressure drainage device, comprising:
[0008] A first drainage container, a second drainage container, a transfer tube and a drainage tube, wherein the first drainage container is provided with a first scale mark, the second drainage container is provided with a second scale mark, and the accuracy of the second scale mark is higher than the accuracy of the first scale mark; the first drainage container is connected to the second drainage container, the transfer tube is installed on the second drainage container and communicated with the second drainage container, the transfer tube is provided with an openable and closable flow hole, and the flow hole is used to connect the transfer tube and the first drainage container when in an unobstructed state; the drainage tube and the transfer tube are detachably matched through a threaded structure.
[0009] In an optional embodiment, an external thread section is provided on the outer circumferential surface of the drainage tube, and an internal thread section is provided on the inner tube wall of the adapter tube, and the external thread section is threadedly engaged with the internal thread section.
[0010] Based on the above solution, the drainage tube and the adapter tube have simple structures, convenient processing and low processing cost. Moreover, the adapter tube is screwed onto the outside of the drainage tube, which can protect the end of the drainage tube and extend the service life of the drainage tube.
[0011] In an optional embodiment, a limiting protrusion is provided on the outer peripheral surface of the drainage tube, the drainage tube has a first end and a second end opposite to each other in the length direction thereof, the external thread section extends to the first end, and there is a distance between the external thread section and the second end; the limiting protrusion is located on the side of the external thread section away from the first end; the limiting protrusion is used to abut against the adapter tube to limit the position of the adapter tube screwed on the drainage tube.
[0012] Based on the above scheme, when connecting the adapter tube and the drainage tube, the adapter tube is screwed onto the outside of the drainage tube. As the screwed-in length of the adapter tube increases, the adapter tube gradually approaches the limiting protrusion. When the adapter tube cooperates with the limiting protrusion, the limiting protrusion gives the adapter tube an obstruction, forming a force feedback. The operator can clearly know that the adapter tube and the drainage tube have been connected through the feedback force, and the operator does not need to repeatedly observe and confirm, which reduces human participation, reduces the difficulty of operation, and improves connection efficiency and accuracy.
[0013] In an optional embodiment, the limiting protrusion is configured as an annular protrusion, an annular positioning groove is provided on the annular end surface of the limiting protrusion facing the first end, and a sealing ring for abutting against the transfer tube is provided in the annular positioning groove.
[0014] Based on the above scheme, when the adapter tube is connected to the drainage tube, the end face of the adapter tube can abut against the sealing ring. While the first sealing band is realized by the threaded connection, a second sealing band can also be formed between the end face of the adapter tube and the sealing ring, which can improve the sealing effect.
[0015] In an optional embodiment, the multifunctional negative pressure drainage device also includes a mounting frame and a hanging rope, the first drainage container and the second drainage container are both fixedly connected to the mounting frame, the hanging rope is connected to the mounting frame, and the hanging rope is used to connect to the bed frame.
[0016] Based on the above solution, the first drainage container and the second drainage container are hung on the bed frame by hanging ropes, which is easy to operate.
[0017] In an optional embodiment, the mounting frame is provided with a plurality of hanging rings of different heights, and the hanging rope can be selectively connected to one of the plurality of hanging rings to adjust the height of the hanging rope relative to the mounting frame.
[0018] Based on the above solution, by adjusting the height of the hanging rope on the mounting frame, the height of the first drainage container and the second drainage container when hanging can be adjusted to meet different scene requirements.
[0019] In an optional embodiment, the multifunctional negative pressure drainage device also includes a plugging head, which is detachably matched with the mounting frame. The plugging head is used to be threaded and fixed to the drainage tube after being removed from the mounting frame to seal the end of the drainage tube for connection with the adapter tube.
[0020] Based on the above solution, when the drainage tube and the adapter tube are disassembled, the end of the drainage tube used for connecting to the adapter tube is exposed, and the drainage tube is sealed with a plugging head to prevent air or impurities from entering the drainage tube, thereby improving hygiene and reducing the risk of cross infection.
[0021] In an optional embodiment, the plugging head is configured as a threaded cap.
[0022] Based on the above solution, the plugging head has a simple structure, can be threadedly connected with the drainage tube, and is easy to operate. It should be understood that a threaded hole can be provided on the mounting frame, and the outer peripheral surface of the threaded cover is provided with an external thread. The threaded cover is screwed into the threaded hole using its external thread, and the plugging head is firmly combined with the mounting frame and is not easy to fall off.
[0023] In an optional embodiment, the multifunctional negative pressure drainage device further includes a negative pressure regulating valve, which is installed on the second drainage container and is used to connect to a syringe to extract the gas in the second drainage container through the syringe.
[0024] Based on the above solution, when the internal air pressure of the second drainage container needs to be adjusted, the syringe is connected to the negative pressure regulating valve, and then the gas in the second drainage container is extracted, which is easy to operate.
[0025] In an optional embodiment, a blocking clip is disposed on the drainage tube, and the blocking clip is used to block the drainage tube.
[0026] Based on the above scheme, when the first drainage container and the second drainage container need to be replaced, the transfer tube and the drainage tube are disassembled, and before replacing the new container, the blocking clamp is adjusted to a position that blocks the drainage tube, so that the tissue fluid is not easily discharged and the environment is not easily polluted. Obviously, after the container is replaced, the transfer tube on the new container is docked with the drainage tube, and the blocking clamp is adjusted to a state that the drainage tube is not blocked, and the drainage tube can drain normally.
[0027] The beneficial effects of the embodiments of the utility model are:
[0028] In summary, the multifunctional negative pressure drainage device provided in this embodiment is provided with a first drainage container and a second drainage container, and the accuracy of the first scale mark on the first drainage container is lower than the accuracy of the scale mark on the second drainage container. When the drainage fluid needs to be accurately measured, the circulation hole is closed, and the circulation hole does not connect the first drainage container and the transfer tube. At this time, the tissue fluid introduced from the drainage tube enters the transfer tube from the drainage tube, and then enters the second drainage container from the transfer tube. The scale accuracy on the second drainage container is high, which can improve the accuracy of tissue fluid measurement, so that medical staff can more accurately understand the patient's condition through the tissue fluid, which is beneficial to the treatment of patients. When there is too much tissue fluid in the second drainage container or there is no need to accurately measure the tissue fluid, the circulation hole is opened, and the tissue fluid can enter the first drainage container from the transfer tube. In this way, the drainage device can adapt to the use requirements of different scenarios. At the same time, when replacing the drainage container, the transfer tube is detached from the drainage tube by screwing the transfer tube, which is easy to operate, saves time and effort, and is efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 A schematic diagram of a multifunctional negative pressure drainage device according to an embodiment of the utility model;
[0031] Figure 2 This is a schematic diagram of the separation of the drainage tube and the transfer tube according to an embodiment of the utility model.
[0032] icon:
[0033] 100-first drainage container; 110-first scale mark; 120-card slot; 200-second drainage container; 210-second scale mark; 300-transfer tube; 310-internal thread section; 400-drainage tube; 410-external thread section; 420-limiting protrusion; 430-sealing ring; 500-mounting frame; 600-hanging rope; 700-sealing head; 800-negative pressure regulating valve; 810-choke clamp; 820-valve. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0037] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0038] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In the prior art, there are various types of drainage devices. In order to adapt to different scenarios, a variety of drainage bags with different scale precision are generally configured, and it is more necessary to select drainage bags with corresponding precision, which is costly. In addition, in general drainage devices, the tube body on the drainage bag and the main body of the drainage tube 400 are connected by buckle connection, that is, the two are fixedly connected by plug-in and interference fit. When replacing the drainage bag, a large force is required to overcome the bonding force between the tube body and the main body of the drainage tube 400, which is inconvenient to operate.
[0041] In view of this, the designer provides a multifunctional negative pressure drainage device that can adapt to different occasions, has low cost, is easy to assemble and disassemble, saves time and effort, and is highly efficient.
[0042] It should be understood that the drainage device can be used for drainage of peritoneal drainage fluid, can also be used for wound drainage, or can be connected to a gastric tube to drain gastric fluid, etc., which are not exhaustively listed in this embodiment.
[0043] Please combine Figure 1 In this embodiment, the multifunctional negative pressure drainage device includes a first drainage container 100, a second drainage container 200, a transfer tube 300 and a drainage tube 400. A first scale mark 110 is provided on the first drainage container 100, and a second scale mark 210 is provided on the second drainage container 200. The accuracy of the second scale mark 210 is higher than that of the first scale mark 110; the first drainage container 100 is connected to the second drainage container 200, the transfer tube 300 is installed on the second drainage container 200 and communicated with the second drainage container 200, and an openable and closable flow hole is provided on the transfer tube 300, and the flow hole is used to connect the transfer tube 300 and the first drainage container 100 when in an unobstructed state; the drainage tube 400 and the transfer tube 300 are detachably matched through a threaded structure.
[0044] Based on the above scheme, the working mode of the multifunctional negative pressure drainage device provided in this embodiment is as follows:
[0045] By setting the first drainage container 100 and the second drainage container 200, and the accuracy of the first scale mark 110 on the first drainage container 100 is lower than the accuracy of the scale mark on the second drainage container 200, when the drainage fluid needs to be accurately measured, the circulation hole is closed, and the circulation hole does not connect the first drainage container 100 and the transfer tube 300. At this time, the tissue fluid introduced from the drainage tube 400 enters the transfer tube 300 from the drainage tube 400, and then enters the second drainage container 200 from the transfer tube 300. The scale on the second drainage container 200 has high accuracy, which can improve the accuracy of tissue fluid measurement, so that medical staff can more accurately understand the patient's condition through the tissue fluid, which is beneficial to the treatment of patients. When the tissue fluid in the second drainage container 200 is too much or does not need to be accurately measured, the circulation hole is opened, and the tissue fluid can enter the first drainage container 100 from the transfer tube 300. In this way, the drainage device can adapt to the use requirements of different scenarios. Meanwhile, when replacing the drainage container, the adapter tube 300 is detached from the drainage tube 400 by screwing the adapter tube 300 , which is convenient to operate, saves time and effort, and is highly efficient.
[0046] The following embodiments illustrate the details of the multifunctional negative pressure drainage device provided in the present application by way of examples.
[0047] In this embodiment, optionally, an outer thread section 410 is provided on the outer circumferential surface of the drainage tube 400, and an inner thread section 310 is provided on the inner tube wall of the adapter tube 300, and the outer thread section 410 is threadedly connected with the inner thread section 310. The drainage tube 400 and the adapter tube 300 have simple structures, convenient processing, and low processing cost. Moreover, the adapter tube 300 is threadedly connected to the outside of the drainage tube 400, which can protect the end of the drainage tube 400 and extend the service life of the drainage tube 400.
[0048] Please combine Figure 1 and Figure 2 In this embodiment, optionally, a limiting protrusion 420 is provided on the outer peripheral surface of the drainage tube 400, and the drainage tube 400 has a first end and a second end opposite to each other in the length direction thereof, and the external thread section 410 extends to the first end, and there is a distance between the external thread section 410 and the second end; the limiting protrusion 420 is located on the side of the external thread section 410 away from the first end; the limiting protrusion 420 is used to abut against the adapter tube 300 to limit the position of the adapter tube 300 screwed on the drainage tube 400.
[0049] With such a design, when connecting the adapter tube 300 and the drainage tube 400, the adapter tube 300 is screwed onto the outside of the drainage tube 400. As the screwed-in length of the adapter tube 300 increases, the adapter tube 300 gradually approaches the limiting protrusion 420. When the adapter tube 300 cooperates with the limiting protrusion 420, the limiting protrusion 420 gives the adapter tube 300 an obstacle, forming a force feedback. The operator can clearly know through the feedback force that the adapter tube 300 and the drainage tube 400 have been connected, and the operator does not need to repeatedly observe and confirm, which reduces human participation, reduces the difficulty of operation, and improves the connection efficiency and accuracy.
[0050] Furthermore, the limiting protrusion 420 is configured as an annular protrusion, and an annular positioning groove is provided on the annular end surface of the limiting protrusion 420 facing the first end, and a sealing ring 430 for abutting against the transfer tube 300 is provided in the annular positioning groove.
[0051] It should be noted that when the adapter tube 300 is docked with the drainage tube 400, the end face of the adapter tube 300 can abut against the sealing ring 430. While the first sealing band is realized by the threaded connection, a second sealing band can also be formed between the end face of the adapter tube 300 and the sealing ring 430, which can improve the sealing effect.
[0052] In this embodiment, the multifunctional negative pressure drainage device may further include a mounting frame 500 and a hanging rope 600. The first drainage container 100 and the second drainage container 200 are both fixedly connected to the mounting frame 500. The hanging rope 600 is connected to the mounting frame 500. The hanging rope 600 is used to connect to the bed frame. The first drainage container 100 and the second drainage container 200 are hung on the bed frame by the hanging rope 600, which is convenient for operation.
[0053] Furthermore, the mounting frame 500 is provided with a plurality of hanging rings of different heights, and the hanging rope 600 can be selectively connected to one of the plurality of hanging rings to adjust the height of the hanging rope 600 relative to the mounting frame 500. By adjusting the height of the hanging rope 600 on the mounting frame 500, the height of the first drainage container 100 and the second drainage container 200 when suspended can be adjusted to meet different scene requirements.
[0054] In this embodiment, the multifunctional negative pressure drainage device may further include a plugging head 700, which is detachably matched with the mounting frame 500. The plugging head 700 is used to be screwed and fixed to the drainage tube 400 after being removed from the mounting frame 500, so as to plug the end of the drainage tube 400 used for connecting to the transfer tube 300. When the drainage tube 400 and the transfer tube 300 are disassembled, the end of the drainage tube 400 used for connecting to the transfer tube 300 is exposed, and the drainage tube 400 is blocked by the plugging head 700, thereby preventing air or impurities from entering the drainage tube 400, improving hygiene, and reducing the risk of cross infection.
[0055] Further, the plugging head 700 is configured as a threaded cap. The plugging head 700 has a simple structure and can be threadedly connected to the drainage tube 400, which is easy to operate. It should be understood that a threaded hole can be provided on the mounting frame 500, and the outer peripheral surface of the threaded cap is provided with an external thread. The threaded cap is screwed into the threaded hole using its external thread, and the plugging head 700 is firmly combined with the mounting frame 500 and is not easy to fall off.
[0056] In this embodiment, the multifunctional negative pressure drainage device may further include a negative pressure regulating valve 800, which is installed on the second drainage container 200. The negative pressure regulating valve 800 is used to connect with a syringe to extract the gas in the second drainage container 200 through the syringe. When the internal air pressure of the second drainage container 200 needs to be adjusted, the syringe is docked with the negative pressure regulating valve 800, and then the gas in the second drainage container 200 is extracted, which is convenient to operate.
[0057] In this embodiment, optionally, a blocking clamp 810 is provided on the drainage tube 400, and the blocking clamp 810 is used to block the drainage tube 400. When the first drainage container 100 and the second drainage container 200 need to be replaced, the transfer tube 300 is disassembled from the drainage tube 400, and before replacing the new container, the blocking clamp 810 is adjusted to a position that blocks the drainage tube 400, so that tissue fluid is not easily discharged and the environment is not easily polluted. Obviously, when the container is replaced, the transfer tube 300 on the new container is docked with the drainage tube 400, and the blocking clamp 810 is adjusted to a state where the drainage tube 400 is not blocked, and the drainage tube 400 can drain normally.
[0058] In this embodiment, optionally, the transfer tube 300 can be set as a three-way tube, the first port of the transfer tube 300 is used to be threadedly connected to the drainage tube 400, and the second port of the transfer tube 300 is connected to the first drainage container 100. It can be understood that the pipe section corresponding to the second port is a flow hole. The third port of the transfer tube 300 is connected to the second drainage container 200, and valves 820 can be respectively set at the second port and the third port to control the flow direction of the transfer tube 300. For example, when the second drainage container 200 needs to be used, the valve 820 at the third port is opened and the valve 820 at the second port is closed; when the first drainage container 100 needs to be used, the valve 820 at the third port is closed and the valve 820 at the second port is opened.
[0059] In addition, in other embodiments, a discharge valve may be provided at the bottom or side of the first drainage container 100 and the second drainage container 200 , and when liquid needs to be discharged, the discharge valve can be opened.
[0060] In addition, in other embodiments, a plurality of slots 120 are provided at the bottom of the first drainage container 100, and a removable color card can be placed in each slot 120, so that the color and properties of the drainage fluid can be conveniently and quickly evaluated through the color card. It should be understood that the type of the color card can be adjusted accordingly according to the collected liquid, and the operation is convenient.
[0061] In addition, the volume of the first drainage container 100 may be greater than that of the second drainage container 200 , and the storage capacity is stronger.
[0062] The multifunctional negative pressure drainage device provided in this embodiment can adapt to different occasions, has low cost, is easy to assemble and disassemble, saves time and effort, and is highly efficient.
[0063] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A multifunctional negative pressure drainage device, characterized in that: include: A first drainage container (100), a second drainage container (200), a transfer tube (300) and a drainage tube (400), wherein the first drainage container (100) is provided with a first scale mark (110), and the second drainage container (200) is provided with a second scale mark (210), and the accuracy of the second scale mark (210) is higher than the accuracy of the first scale mark (110); the first drainage container (100) is connected to the second drainage container (200), the transfer tube (300) is installed on the second drainage container (200) and communicated with the second drainage container (200), and the transfer tube (300) is provided with an openable and closable flow hole, and the flow hole is used to connect the transfer tube (300) and the first drainage container (100) when in an unobstructed state; the drainage tube (400) and the transfer tube (300) are detachably matched through a threaded structure.
2. The multifunctional negative pressure drainage device according to claim 1, characterized in that: An external thread section (410) is provided on the outer peripheral surface of the drainage tube (400), and an internal thread section (310) is provided on the inner tube wall of the adapter tube (300), and the external thread section (410) is threadedly engaged with the internal thread section (310).
3. The multifunctional negative pressure drainage device according to claim 2, characterized in that: A limiting protrusion (420) is provided on the outer peripheral surface of the drainage tube (400), and the drainage tube (400) has a first end and a second end opposite to each other in the length direction thereof, and the external thread section (410) extends to the first end, and a distance is provided between the external thread section (410) and the second end; the limiting protrusion (420) is located on a side of the external thread section (410) away from the first end; the limiting protrusion (420) is used to abut against the adapter tube (300) to limit the position of the adapter tube (300) being screwed onto the drainage tube (400).
4. The multifunctional negative pressure drainage device according to claim 3, characterized in that: The limiting protrusion (420) is configured as an annular protrusion, and an annular positioning groove is provided on the annular end surface of the limiting protrusion (420) facing the first end, and a sealing ring (430) is provided in the annular positioning groove for abutting against the transfer tube (300).
5. The multifunctional negative pressure drainage device according to claim 1, characterized in that: The multifunctional negative pressure drainage device further comprises a mounting frame (500) and a hanging rope (600); the first drainage container (100) and the second drainage container (200) are both fixedly connected to the mounting frame (500); the hanging rope (600) is connected to the mounting frame (500); and the hanging rope (600) is used to be connected to a bed frame.
6. The multifunctional negative pressure drainage device according to claim 5, characterized in that: The mounting frame (500) is provided with a plurality of hanging rings of different heights, and the hanging rope (600) can be selectively connected to one of the plurality of hanging rings to adjust the height of the hanging rope (600) relative to the mounting frame (500).
7. The multifunctional negative pressure drainage device according to claim 5, characterized in that: The multifunctional negative pressure drainage device further comprises a plugging head (700), which is detachably matched with the mounting frame (500). The plugging head (700) is used to be screwed and fixed to the drainage tube (400) after being removed from the mounting frame (500) so as to plug the end of the drainage tube (400) for connecting to the adapter tube (300).
8. The multifunctional negative pressure drainage device according to claim 7, characterized in that: The plugging head (700) is configured as a threaded cap.
9. The multifunctional negative pressure drainage device according to claim 1, characterized in that: The multifunctional negative pressure drainage device further comprises a negative pressure regulating valve (800), which is installed on the second drainage container (200), and the negative pressure regulating valve (800) is used to be connected to a syringe so as to extract the gas in the second drainage container (200) through the syringe.
10. The multifunctional negative pressure drainage device according to claim 1, characterized in that: The drainage tube (400) is provided with a flow blocking clip (810), and the flow blocking clip (810) is used to block the drainage tube (400).