A drainage device
By using a multi-valve design for the drainage device and a buffer bottle collection bag structure, the problems of pipe blockage and inconvenience in changing medications are solved, enabling a rapid cleaning and safe drainage and medication changing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN MEDICAL UNIV GENERAL HOSPITAL
- Filing Date
- 2025-04-08
- Publication Date
- 2026-06-19
AI Technical Summary
In existing technologies, high incision tension is detrimental to suturing and the tubes are prone to blockage, leading to difficulties in replacing the tubes.
A drainage device was designed, which includes a transfer valve, an anti-clogging flushing port, an anti-clogging valve, a medication inlet, and a medication valve. The device integrates drainage and medication replacement through the cooperation of multiple valves, clears blockages, and uses a buffer bottle and a collection bag to facilitate the observation of liquid color and volume. An elastic fixing strap is used to secure the collection bag.
It enables rapid cleaning and medication replacement when pipes are blocked, reducing the frequency of pipe replacement, improving ease of use and safety, and lowering the risk of infection.
Smart Images
Figure CN224370319U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clinical orthopedic technology, specifically to a drainage device. Background Technology
[0002] Medical drainage devices are medical instruments that use catheters, negative pressure suction, or gravity to directionally drain pathological substances such as fluid, pus, blood, and gas from postoperative wounds and body cavities. They typically consist of a silicone tubing, an anti-backflow valve, a reservoir bag, and an intelligent pressure control system. They can precisely adjust the drainage speed and pressure, reduce the risk of infection, and promote tissue repair. They are widely used in surgical procedures, trauma treatment, and chronic wound management, combining safety and efficiency to help patients recover and reduce the incidence of complications.
[0003] Patent publication number CN216824282U discloses a modular negative pressure drainage device for trauma orthopedic surgery, relating to the field of surgical incision drainage technology. This modular negative pressure drainage device for trauma orthopedic surgery includes a drainage ball and a drainage tube at its end. The diameter of the drainage tube is 7.5 mm. A connector is fixed to the end of the drainage tube. The connector includes a threaded tube and a threaded sleeve that are screwed together. The threaded tube is connected to the drainage tube. An extension tube with a different diameter than the drainage tube is connected to the end of the threaded sleeve away from the drainage tube. A drainage hole is opened on the outer wall of the extension tube on the side away from the drainage ball.
[0004] To address the issue of high incision tension hindering suturing, existing techniques involve threading an extension tube to a drainage tube for installation. However, this method still leads to issues such as blockage within the tube during use and the need for dressing changes during treatment, ultimately resulting in the need to replace the tube due to the inconvenience of cleaning. Utility Model Content
[0005] The purpose of this invention is to provide a drainage device to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A drainage device includes a drainage device body, a fixing device is provided on the back of the drainage device body, a transfer valve is provided on the top of the drainage device body, and a connecting device is provided in the middle of the drainage device body.
[0008] The transfer valve includes a lower valve, which is fixedly connected to the top of the drainage device body. A transfer pipe is fixedly connected to the top of the lower valve. An anti-clogging flushing port is fixedly connected to the right side of the transfer pipe, and an anti-clogging valve is fixedly connected to the middle of the anti-clogging flushing port.
[0009] A further improvement of this utility model is that: a medicine inlet is fixedly connected to the left side of the transfer pipe, a medicine valve is fixedly connected to the middle of the medicine inlet, and an upper valve is fixedly connected to the top of the transfer pipe.
[0010] A further improvement of this utility model is that: the main body of the drainage device includes a buffer bottle and a drainage tube. The buffer bottle is fixedly connected to the bottom of the anti-clogging flushing port, the drainage tube is fixedly connected to the top of the upper valve, a transmission tube is fixedly connected to the bottom of the buffer bottle, a collection bag valve is provided at the bottom of the transmission tube, a collection bag is fixedly connected to the bottom of the collection bag valve, and a scale is provided on the front of the collection bag.
[0011] A further improvement of the present invention is that the fixing device includes a fixing block, the fixing block is fixedly connected to the back of the collection bag, an elastic fixing strap is fixedly connected inside the fixing block, and Velcro is fixedly connected to both ends of the elastic fixing strap.
[0012] A further improvement of the present invention is that the connecting device includes a connecting nut, which is fixedly connected to the top of the collection bag valve. The inner wall of the connecting nut is provided with threads, and the internal threads of the connecting nut are connected with connecting screws. There are three connecting screws, divided into upper and lower groups. One end of the upper group of connecting screws is fixedly connected to one end of the anti-clogging flushing port and the medicine inlet. The top of the connecting screw is threadedly connected with a sealing cap, and the bottom of the inner wall of the sealing cap is fixedly connected with a sealing gasket.
[0013] A further improvement of the present invention is that the connecting nut includes a connecting block, the connecting block is fixedly connected to the top of the collection bag valve, a threaded sleeve is rotatably connected to the outside of the connecting block, a slot is provided on the surface of the connecting block, and a fixing post is fixedly connected to the bottom of the slot.
[0014] A further improvement of the present invention is that the connecting screw includes a threaded barrel, the threaded barrel is threadedly connected to the inner wall of the threaded sleeve, the top of the threaded barrel is provided with a protrusion, a connecting pipe is fixedly connected to the axis of the threaded barrel, and a sealing washer is fixedly connected to the bottom of the threaded barrel.
[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0016] 1. This utility model provides a drainage device that uses a combination of a transfer tube, an anti-clogging flushing port, an anti-clogging valve, a lower valve, a medication inlet, a medication valve, and an upper valve. By opening the upper and lower valves, drainage can be achieved. Then, by closing the upper valve and opening the anti-clogging valve, saline solution can be injected into the tube for flushing when blockage occurs, flushing the blockage into the collection bag. Then, by closing the anti-clogging valve and the lower valve and opening the medication valve and the upper valve, dressing can be changed at the wound site. Through the coordinated use of multiple valves, drainage, dressing change, and clearing of blockages can be achieved in one integrated system.
[0017] 2. This utility model provides a drainage device that uses a collection bag, a transfer tube, a collection bag valve, a buffer bottle, a drainage tube, a scale, a fixing block, an elastic fixing strap, and Velcro. By expelling the air from inside the collection bag and then inserting the drainage tube into the affected area, the collection bag valve is opened, allowing the fluid from the affected area to be drawn into the buffer bottle. The buffer bottle provides a certain buffering effect, and the fluid in the buffer bottle is transferred to the collection bag through the transfer tube. The collection bag is transparent, allowing the color of the flowing fluid to be observed to check for wound infection. The scale on the surface of the collection bag allows for a rough indication of the amount of fluid absorbed. The collection bag can be fixed by stretching the elastic fixing strap and attaching the Velcro together, thus facilitating the patient's movement.
[0018] 3. This utility model provides a drainage device, which uses a connecting nut, sealing cap, sealing gasket, connecting screw, connecting block, threaded sleeve, slot, fixing post, threaded barrel, connecting pipe, and sealing washer in combination. By inserting the protrusion on the top of the threaded barrel into the bottom of the slot, and then rotating the threaded barrel, the fixing post fixes the protrusion. Finally, the threaded sleeve is tightened for fixation. The sealing washer plays a sealing role to prevent liquid leakage inside the device. By connecting the sealing cap to the connecting screw, it can play a sealing role when the connecting screw is not in use, which can prevent external bacteria, dust, etc. from entering the device. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the drainage device of this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the drainage device body of this utility model;
[0021] Figure 3 This is a schematic diagram of the fixing device of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the transfer valve of this utility model;
[0023] Figure 5 This is a schematic diagram of the connecting device of this utility model.
[0024] In the diagram: 1. Drainage device body; 2. Fixing device; 3. Adapter valve; 4. Connecting device; 11. Collection bag; 12. Transfer pipe; 13. Collection bag valve; 14. Buffer bottle; 15. Drainage pipe; 16. Scale; 21. Fixing block; 22. Elastic fixing strap; 23. Velcro; 31. Adapter pipe; 32. Anti-clogging flushing port; 33. Anti-clogging valve; 34. Lower valve; 35. Medicine inlet; 36. Medicine inlet valve; 37. Upper valve; 41. Connecting nut; 42. Sealing cap; 43. Sealing gasket; 44. Connecting screw; 411. Connecting block; 412. Screw sleeve; 413. Slot; 414. Fixing post; 441. Threaded barrel; 442. Connecting pipe; 443. Sealing gasket. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to embodiments:
[0026] Example 1
[0027] like Figure 1-5 As shown, this utility model provides a drainage device, including a drainage device body 1, a fixing device 2 on the back of the drainage device body 1, a transfer valve 3 on the top of the drainage device body 1, and a connecting device 4 in the middle of the drainage device body 1. The transfer valve 3 includes a lower valve 34, which is fixedly connected to the top of the drainage device body 1. A transfer pipe 31 is fixedly connected to the top of the lower valve 34. An anti-clogging flushing port 32 is fixedly connected to the right side of the transfer pipe 31. An anti-clogging valve 33 is fixedly connected to the middle of the anti-clogging flushing port 32. A medicine inlet 35 is fixedly connected to the left side of the transfer pipe 31. A medicine inlet valve 36 is fixedly connected to the middle of the medicine inlet 35. An upper valve 37 is fixedly connected to the top of the transfer pipe 31.
[0028] In this embodiment, the upper valve 37 and the lower valve 34 can be opened to achieve the function of guiding the flow. Then, the upper valve 37 is closed and the anti-blocking valve 33 is opened. When the transmission pipe 12 is blocked, saline can be injected into it to flush the blockage and flush the blockage into the collection bag 11. Then, the anti-blocking valve 33 and the lower valve 34 are closed, and the dressing valve 36 and the upper valve 37 are opened to change the dressing at the wound. Through the cooperation of multiple valves, the functions of drainage, dressing change and clearing blockage can be achieved in one integrated manner.
[0029] Example 2
[0030] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the main body 1 of the drainage device includes a buffer bottle 14 and a drainage tube 15. The buffer bottle 14 is fixedly connected to the bottom of the anti-clogging flushing port 32, the drainage tube 15 is fixedly connected to the top of the upper valve 37, the bottom of the buffer bottle 14 is fixedly connected to a transmission tube 12, the bottom of the transmission tube 12 is provided with a collection bag valve 13, the bottom of the collection bag valve 13 is fixedly connected to a collection bag 11, the front of the collection bag 11 is provided with a scale 16, the fixing device 2 includes a fixing block 21, the fixing block 21 is fixedly connected to the back of the collection bag 11, the inside of the fixing block 21 is fixedly connected to an elastic fixing strap 22, and the two ends of the elastic fixing strap 22 are fixedly connected to Velcro 23.
[0031] In this embodiment, by expelling the air from the collection bag 11 and inserting the drainage tube 15 into the affected area, and opening the collection bag valve 13, the fluid from the affected area can be drawn into the buffer bottle 14. The buffer bottle 14 plays a certain buffering role. The fluid in the buffer bottle 14 is transferred to the collection bag 11 through the transmission tube 12. The collection bag 11 is transparent, so the color of the flowing fluid can be observed to check whether the wound is infected. The scale 16 on the surface of the collection bag 11 can roughly indicate the amount of fluid absorbed. The collection bag 11 can be fixed by stretching the elastic fixing strap 22 and sticking the Velcro 23 together, thereby facilitating the patient's movement.
[0032] Example 3
[0033] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the connecting device 4 includes a connecting nut 41, which is fixedly connected to the top of the collection bag valve 13. The inner wall of the connecting nut 41 is provided with threads, and the internal threads of the connecting nut 41 are connected to connecting screws 44. There are three connecting screws 44, divided into upper and lower groups. One end of the upper group of connecting screws 44 is fixedly connected to one end of the anti-clogging flushing port 32 and the medicine inlet 35. The top of the connecting screws 44 is threadedly connected to a sealing cap 42, and the bottom of the inner wall of the sealing cap 42 is fixedly connected to a sealing gasket. The connecting nut 41 includes a connecting block 411, which is fixedly connected to the top of the collection bag valve 13. A threaded sleeve 412 is rotatably connected to the outside of the connecting block 411. A groove 413 is provided on the surface of the connecting block 411. A fixing post 414 is fixedly connected to the bottom of the groove 413. The connecting screw 44 includes a threaded barrel 441, which is threadedly connected to the inner wall of the threaded sleeve 412. A protrusion is provided on the top of the threaded barrel 441. A connecting pipe 442 is fixedly connected to the axis of the threaded barrel 441. A sealing washer 443 is fixedly connected to the bottom of the threaded barrel 441.
[0034] In this embodiment, the protrusion at the top of the threaded barrel 441 is inserted into the bottom of the slot 413, and then the threaded barrel 441 is rotated. The fixing post 414 fixes the protrusion, and finally the threaded sleeve 412 is tightened for fixation. The sealing washer 443 plays a sealing role to prevent liquid leakage inside the device. By connecting the sealing cover 42 to the connecting screw 44, it can play a sealing role when the connecting screw 44 is not in use, which can prevent external bacteria, dust and other substances from entering the device.
[0035] The working principle of this drainage device will be explained in detail below.
[0036] like Figure 1-5 As shown, by expelling the air from inside the collection bag 11, and then by inserting the protrusion at the top of the threaded barrel 441 into the bottom of the slot 413, and then rotating the threaded barrel 441, the fixing post 414 fixes the protrusion. Then, the threaded sleeve 412 is tightened to connect the collection bag 11 and the transfer tube 12. By sealing the cap 42 and then inserting the drainage tube 15 into the affected area, and opening the collection bag valve 13, the fluid from the affected area can be drawn into the buffer bottle 14. The buffer bottle 14 provides a certain buffering effect. The fluid in the buffer bottle 14 is transferred to the collection bag 11 through the transfer tube 12. The collection bag 11 is transparent, allowing observation of the color of the flowing fluid. The scale 16 on the surface of the collection bag 11 allows for a rough estimate of the amount of fluid absorbed, which can be checked for wound infection. The collection bag 11 can be secured by stretching the elastic fixing strap 22 and attaching the Velcro 23 together, thus facilitating the patient's movement. The upper valve 37 and the lower valve 34 can be opened to guide the flow. Then, the upper valve 37 can be closed and the anti-blocking valve 33 can be opened to inject saline solution into the transfer tube 12 to flush out the blockage and flush the blockage into the collection bag 11. Then, the anti-blocking valve 33 and the lower valve 34 can be closed, and the dressing valve 36 and the upper valve 37 can be opened to change the dressing at the wound site.
[0037] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A drainage device comprising a drainage device body (1), characterized in that: A fixing device (2) is provided on the back of the body (1) of the drainage device, a transfer valve (3) is provided on the top of the body (1) of the drainage device, and a connecting device (4) is provided in the middle of the body (1). The transfer valve (3) includes a lower valve (34), which is fixedly connected to the top of the drainage device body (1). A transfer pipe (31) is fixedly connected to the top of the lower valve (34). An anti-clogging flushing port (32) is fixedly connected to the right side of the transfer pipe (31), and an anti-clogging valve (33) is fixedly connected to the middle of the anti-clogging flushing port (32).
2. A drainage device according to claim 1, wherein: The left side of the transfer pipe (31) is fixedly connected to a medicine inlet (35), the middle part of the medicine inlet (35) is fixedly connected to a medicine valve (36), and the top of the transfer pipe (31) is fixedly connected to an upper valve (37).
3. The drainage device of claim 1, wherein: The main body (1) of the drainage device includes a buffer bottle (14) and a drainage tube (15). The buffer bottle (14) is fixedly connected to the bottom of the anti-clogging flushing port (32). The drainage tube (15) is fixedly connected to the top of the upper valve (37). A transmission tube (12) is fixedly connected to the bottom of the buffer bottle (14). A collection bag valve (13) is provided at the bottom of the transmission tube (12). A collection bag (11) is fixedly connected to the bottom of the collection bag valve (13). A scale (16) is provided on the front of the collection bag (11).
4. The drainage device according to claim 3, characterized in that: The fixing device (2) includes a fixing block (21), which is fixedly connected to the back of the collection bag (11). An elastic fixing strap (22) is fixedly connected inside the fixing block (21), and Velcro (23) is fixedly connected to both ends of the elastic fixing strap (22).
5. A drainage device according to claim 3, characterized in that: The connecting device (4) includes a connecting nut (41), which is fixedly connected to the top of the collection bag valve (13). The inner wall of the connecting nut (41) is provided with threads, and the internal threads of the connecting nut (41) are connected to connecting screws (44). There are three connecting screws (44) divided into upper and lower groups. One end of the upper group of connecting screws (44) is fixedly connected to one end of the anti-clogging flushing port (32) and the medicine inlet (35). The top of the connecting screw (44) is threadedly connected to a sealing cap (42), and the bottom of the inner wall of the sealing cap (42) is fixedly connected to a sealing gasket (43).
6. A drainage device according to claim 5, characterized in that: The connecting nut (41) includes a connecting block (411), which is fixedly connected to the top of the collection bag valve (13). A threaded sleeve (412) is rotatably connected to the outside of the connecting block (411). A slot (413) is provided on the surface of the connecting block (411), and a fixing post (414) is fixedly connected to the bottom of the slot (413).
7. A drainage device according to claim 6, characterized in that: The connecting screw (44) includes a threaded barrel (441), which is threaded to the inner wall of the threaded sleeve (412). The top of the threaded barrel (441) is provided with a protrusion. A connecting pipe (442) is fixedly connected to the axis of the threaded barrel (441), and a sealing washer (443) is fixedly connected to the bottom of the threaded barrel (441).