Multifunctional negative pressure wound drainage device

Abstract

The invention discloses a multifunctional negative pressure wound drainage device, and particularly relates to the technical field of medical instruments, the multifunctional negative pressure wound drainage device comprises a base, the top surface of the base is provided with an installation cover, and the bottom surface of the base is fixedly provided with a plurality of self-locking universal wheels; the first adjusting disc, the drainage tubes, the wound joints, the negative pressure pump, a liquid pumping tube, a liquid discharging tube, a series connection tube, a second fixing cap and a connecting sleeve are used in cooperation, the multiple drainage tubes and the wound joints can be rapidly switched for use, and the situation that a wound is exposed to the outside for a long time due to replacement of the drainage tubes and the wound joints is avoided; according to the device, a second adjusting disc, a base, an adjusting screw rod, a connecting frame, an installation cover, a threaded connecting ring, a limiting rod and a limiting seat are used in cooperation, and the effect that the use height of the installation cover and the use height of a plurality of liquid storage tanks are adjusted, so that the device adapts to different use environments is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a multifunctional negative pressure wound drainage device. Background Art

[0002] The negative pressure wound drainage device belongs to a kind of medical equipment and is usually used to promote wound healing and reduce infection. It creates a negative pressure environment at the wound to help remove the liquid and bacteria in the wound, thereby promoting the growth of new tissues. The working principle of the negative pressure drainage device is to suck out the liquid and bacteria in the wound by using a negative pressure pump through a drainage tube connected to the wound. This negative pressure environment helps reduce the edema around the wound, increase the local blood flow, and provide a more suitable healing environment for the wound. In addition, the negative pressure drainage device can also reduce the number of bacteria on the wound surface and reduce the risk of infection. It is particularly common in the treatment of chronic wounds, burns, postoperative wounds, and certain types of infectious wounds.

[0003] In the prior art, in order to drain the liquid at the wound site after surgery, promote healing and reduce the risk of infection, a negative pressure wound drainage device is often needed. The existing negative pressure wound drainage devices are generally connected to a negative pressure device through a drainage tube and a wound connector. Then, during use, since the sizes of the wounds are different, the diameters of the required drainage tubes and the sizes of the wound connectors are also different. At this time, medical staff need to replace the drainage tube and the wound connector to make them match the size of the wound. Then, in an emergency, medical staff need to assemble the drainage tube and the wound connector, which will make it difficult to quickly match and replace the drainage tube and the wound connector, resulting in the wound being exposed for a long time, thereby increasing the risk of wound infection or leakage of the accumulated liquid in the wound. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a multifunctional negative pressure wound drainage device to solve the problems raised in the above background art.

[0005] The above technical object of the present invention is achieved through the following technical solutions:

[0006] A multifunctional negative pressure wound drainage device, including a base, a mounting cover is arranged on the top surface of the base, a plurality of self-locking universal wheels are fixedly installed on the bottom surface of the base, and a plurality of liquid storage tanks are arranged on the outer wall surface of the mounting cover;

[0007] A connection frame is fixedly installed on the outer wall surface of the installation cover. A negative pressure pump is fixedly installed on one side of the connection frame. A first adjustment disc is rotatably connected to the top surface of the installation cover. A number of positioning holes are provided on the top surface of the first adjustment disc. A connection sleeve is fixedly sleeved inside the positioning hole. Second fixing caps are threadedly connected to both the top surface and the bottom surface of the connection sleeve. The inner wall surfaces of a number of the connection sleeves are movably sleeved with drainage tubes. Wound connectors are fixedly sleeved on the inner wall surfaces of a number of the drainage tubes. A series connection pipe is provided on the bottom surface of the first adjustment disc. A number of the liquid storage tanks are connected in series through the series connection pipe;

[0008] The outer wall surface of the water inlet of the negative pressure pump is fixedly sleeved with a liquid extraction pipe. The liquid extraction pipe is movably sleeved with the inner wall surface of the connection sleeve. The outer wall surface of the water outlet of the negative pressure pump is fixedly sleeved with a liquid discharge pipe. The liquid discharge pipe is fixedly sleeved with the inner wall surface of the series connection pipe;

[0009] An adjustment assembly is provided on the top surface of the base and is used to adjust the use height of the installation cover and a number of the liquid storage tanks;

[0010] A limit assembly is provided on the top surface of the installation cover and is used to limit and fix the first adjustment disc after it is rotated and adjusted.

[0011] By adopting the above technical solution, during use, the staff adjusts the use height of the installation cover and a number of the liquid storage tanks through the adjustment assembly. Then, the staff can insert the drainage tubes and wound connectors on the top of the first adjustment disc into the wound. Then, the staff uses the negative pressure pump. At this time, the negative pressure pump generates negative pressure to pump the accumulated liquid in the wound into the inside of the negative pressure pump through the drainage tubes and the liquid extraction pipe. Then, the accumulated liquid inside the negative pressure pump will be transported to the inside of a number of the liquid storage tanks through the liquid discharge pipe and the series connection pipe, thereby achieving the effect of negative pressure drainage and discharge of the accumulated liquid in the wound. When the staff needs to replace the drainage tubes and wound connectors with different inner diameters according to the size of the wound, the staff unscrews and loosens the second fixing cap connected to the liquid extraction pipe. Then, the staff can pull out the liquid extraction pipe from the inside of the connection sleeve. Then, the staff can rotate the first adjustment disc. At this time, a number of the drainage tubes and wound connectors on the top of the first adjustment disc will rotate accordingly. During this process, the limit assembly will limit and fix the adjusted first adjustment disc. Then, the staff can rotate the appropriate drainage tube and wound connector to a position corresponding to the liquid extraction pipe. Then, the staff can insert the liquid extraction pipe into the corresponding connection sleeve and fix it with the second fixing cap. In this way, the staff can quickly switch and use a number of the drainage tubes and wound connectors, avoiding the staff spending a long time on the replacement of the drainage tubes and wound connectors, thereby achieving the effect of preventing the wound from being exposed to the outside for a long time due to the replacement of the drainage tubes and wound connectors, resulting in the wound being infected.

[0012] Preferably, the adjusting assembly includes: a second adjusting disk rotatably connected to the top surface of the base, an adjusting screw fixedly installed on the top surface of the second adjusting disk, a connecting frame fixedly installed inside the mounting cover, a threaded connection ring rotatably connected inside the connecting frame, and the threaded connection ring is threadedly connected to the adjusting screw.

[0013] By adopting the above technical solution, when the staff needs to adjust the use height of multiple liquid storage tanks according to the external environment, the staff rotates the second adjusting disk, and then the adjusting screw on the top of the second adjusting disk will rotate accordingly. Then, under the threaded transmission of the adjusting screw and the threaded connection ring, the threaded connection ring will drive the mounting cover and multiple liquid storage tanks outside it to move up or down simultaneously, thereby achieving the effect of adjusting the use height of the mounting cover and multiple liquid storage tanks to adapt to different use environments.

[0014] Preferably, the limiting assembly includes: a plurality of mounting caps, all of the plurality of mounting caps are fixedly installed on the top surface of the mounting cover, a second spring is movably sleeved inside the mounting cap, a first limiting block is movably sleeved inside the mounting cap, a plurality of first limiting grooves are formed on the bottom surface of the first adjusting disk, and the inner circumferential wall surface of the first limiting groove is movably sleeved with the first limiting block.

[0015] By adopting the above technical solution, when the first adjusting disk is rotated for adjustment, the bottom surface of the first adjusting disk will squeeze a plurality of first limiting blocks, and then the first limiting blocks move downward to squeeze the second spring. Then, when the positions of the first limiting blocks correspond to the positions of the plurality of first limiting grooves on the bottom surface of the first adjusting disk, the resilience of the second spring will push the first limiting blocks to reset and make the first limiting blocks enter the inside of the first limiting grooves to limit the first adjusting disk, thereby achieving the effect of limiting and fixing the first adjusting disk after adjustment.

[0016] Preferably, a mounting frame is fixedly installed on the top surface of the first adjusting disk, a plurality of storage wheels are rotatably connected to the outer wall surface of the mounting frame, a plurality of mounting seats are fixedly installed on the outer wall surface of the mounting frame, limiting frames are respectively rotatably connected to both sides of the mounting seat, a positioning column is movably sleeved on the inner circumferential wall surface of the limiting frame, a first spring is movably sleeved on the outer circumferential wall surface of the positioning column, one end of the positioning column is fixedly installed on the inner wall surface of the mounting frame, and a limiting wheel is rotatably connected inside the limiting frame.

[0017] By adopting the above technical solution, the staff can squeeze the drainage tube between the two limit wheels. Then, the two limit wheels will drive the limit frame to rotate due to the squeezing force. After that, the limit frame will squeeze the two first springs. When the drainage tube enters between the two limit frames, the resilience of the two first springs will drive the two limit frames and the two limit wheels to reset. Thus, the two limit wheels will limit and fix the drainage tube, achieving the effect of placing and fixing multiple drainage tubes.

[0018] Preferably, a placement groove is formed on the top surface of the mounting frame. A connection disk is fixedly sleeved inside the placement groove. The inner circular wall surface of the connection disk is threadedly connected with a spray head.

[0019] By adopting the above technical solution, when the staff removes the drainage tube and the wound connector for use, the staff can spray the disinfectant liquid inside the placement groove onto the surfaces of the wound connector and the drainage tube by pressing the spray head, thus facilitating the disinfection treatment of the drainage tube and the wound connector when they are in use.

[0020] Preferably, a plurality of mounting seats are fixedly installed on the outer wall surface of the mounting cover. A limit plate is fixedly installed on the bottom surface of the mounting seat. A tray is slidably connected to one side of the mounting seat. A connecting rod is rotatably connected to the bottom surface of the tray. The connecting rod is rotatably connected to the mounting seat. The inner circular wall surface of the tray is movably sleeved with the liquid storage tank. A plurality of limit shells are fixedly installed on the outer wall surface of the mounting cover. The limit shells are slidably connected with the liquid storage tank.

[0021] By adopting the above technical solution, when the liquid in the liquid storage tank is full, the staff can push the liquid storage tank upward. Then, the limit on the liquid storage tank and the tray by the limit shell and the mounting seat will be released. Thus, the staff can move the liquid storage tank away from the outside of the mounting cover. Then, as the liquid storage tank moves, the tray can drive the connecting rod to rotate, facilitating the staff to replace the liquid storage tank.

[0022] Preferably, a plurality of mounting grooves are formed on the top surface of the base. A limit ring is fixedly sleeved inside the mounting groove. A second limit block is movably sleeved inside the mounting groove. The second limit block is movably sleeved with the inner circular wall surface of the limit ring. A third spring is movably sleeved inside the mounting groove. A plurality of second limit grooves are formed on the bottom surface of the second adjusting disk. The inner circular wall surface of the second limit groove is movably sleeved with the second limit block.

[0023] By adopting the above technical solution, it is convenient to limit and fix the second adjusting disk after it rotates.

[0024] Preferably, limiting rods are fixedly installed on both inner sides of the base respectively, limiting seats are fixedly installed on both sides of the installation cover respectively, and the inner circular wall surface of the limiting seat is movably sleeved with the limiting rod.

[0025] By adopting the above technical solution, it is convenient to guide and limit the installation cover when it moves, and prevent it from rotating.

[0026] Preferably, a positioning seat is fixedly installed on one side of the installation cover, threaded sleeves are fixedly installed on the top surface and the bottom surface of the positioning seat respectively, the outer circular wall surface of the threaded sleeve is threadedly connected with a first fixing cap, and the inner circular wall surface of the positioning seat and the threaded sleeve is movably sleeved with the liquid extraction pipe.

[0027] By adopting the above technical solution, the staff can rotate the two first fixing caps to extrude the threaded sleeves made of spring steel, and then the threaded sleeves will contract inward under the extrusion and extrude the liquid extraction pipe, so as to facilitate the adjustment of the inner diameter of the liquid extraction pipe for use.

[0028] To sum up, the present invention mainly has the following beneficial effects:

[0029] 1. By the mutual cooperation of the first adjustment disc, the drainage pipe, the wound connector, the negative pressure pump, the liquid extraction pipe, the liquid discharge pipe, the series pipe, the second fixing cap and the connecting sleeve, the present invention achieves the effect of quickly switching the use of multiple drainage pipes and wound connectors, and avoiding the wound from being exposed to the outside for a long time due to the replacement of the drainage pipe and the wound connector, resulting in wound infection.

[0030] 2. By the mutual cooperation of the second adjustment disc, the base, the adjustment screw, the connecting frame, the installation cover, the threaded connection ring, the limiting rod and the limiting seat, the present invention achieves the effect of adjusting the use height of the installation cover and multiple liquid storage tanks to adapt to different use environments.

[0031] 3. By the mutual cooperation of the installation cap, the installation cover, the second spring, the first limiting block, the first adjustment disc, the first limiting groove, the installation groove, the first limiting groove, the limiting ring, the second limiting block, the second adjustment disc and the third spring, the present invention achieves the effect of limiting and fixing the first adjustment disc and the second adjustment disc after they are rotated for use.

[0032] 4. By the mutual cooperation of the installation seat, the installation cover, the limiting plate, the tray, the connecting rod, the liquid storage tank and the limiting shell, the present invention achieves the effect of facilitating the replacement of the liquid storage tank when the liquid in the liquid storage tank is full.

[0033] 5. By the mutual cooperation of the first adjustment disc, the installation frame, the storage wheel, the installation seat, the limiting frame, the positioning column, the first spring and the limiting wheel, the present invention achieves the effect of placing and fixing multiple drainage pipes.

[0034] 6. By using the cooperating components of the cover, positioning seat, threaded sleeve, first fixing cap, and liquid extraction tube, the present invention achieves the effect of adjusting the inner diameter of the liquid extraction tube for easy matching with drainage tubes of different inner diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0036] Figure 2 is a structural schematic diagram of the liquid storage tank of the present invention;

[0037] Figure 3 is a structural schematic diagram of the liquid extraction tube of the present invention;

[0038] Figure 4 is a structural schematic diagram of the positioning seat of the present invention;

[0039] Figure 5 is a structural schematic diagram of the cover of the present invention;

[0040] Figure 6 is a bottom view schematic diagram of the second adjusting disc of the present invention;

[0041] Figure 7 is a structural schematic diagram of the mounting seat of the present invention;

[0042] Figure 8 is a structural schematic diagram of the mounting frame of the present invention;

[0043] Figure 9 is a structural schematic diagram of the mounting base of the present invention;

[0044] Figure 10 is a bottom view schematic diagram of the first adjusting disc of the present invention;

[0045] Figure 11 is a structural schematic diagram of the base of the present invention;

[0046] Figure 12 is Figure 5 a partial structural schematic diagram of A in

[0047] Figure 13 is Figure 11 a partial structural schematic diagram of B in

[0048] Figure 14 is Figure 2 a partial structural schematic diagram of C in

[0049] Reference numerals: 1, base; 2, mounting cover; 3, liquid storage tank; 4, first adjusting disc; 5, mounting rack; 6, limiting rod; 7, series pipe; 8, negative pressure pump; 9, liquid suction pipe; 10, liquid discharge pipe; 11, positioning seat; 12, mounting seat; 13, limiting shell; 14, second adjusting disc; 15, threaded sleeve; 16, first fixing cap; 17, adjusting screw; 18, connecting frame; 19, threaded connection ring; 20, limiting seat; 21, limiting ring; 22, connecting frame; 23, second limiting block; 24, second limiting groove; 25, limiting plate; 26, connecting rod; 27, tray; 28, storage wheel; 29, mounting seat; 30, placing groove; 31, connecting disc; 32, nozzle; 33, limiting frame; 34, positioning column; 35, first spring; 36, limiting wheel; 37, positioning hole; 38, connecting sleeve; 39, second fixing cap; 40, first limiting groove; 41, mounting groove; 42, self-locking universal wheel; 43, mounting cap; 44, second spring; 45, first limiting block; 46, third spring; 47, drainage pipe; 48, wound connector. Detailed implementation manners

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] Embodiment 1

[0052] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 10 、 Figure 12 and Figure 14, a multifunctional negative pressure wound drainage device, comprising: a base 1, a mounting cover 2 is arranged on the top surface of the base 1, a plurality of self-locking universal wheels 42 are fixedly installed on the bottom surface of the base 1, and a plurality of liquid storage tanks 3 are arranged on the outer wall surface of the mounting cover 2; a connecting frame 22 is fixedly installed on the outer wall surface of the mounting cover 2, a negative pressure pump 8 is fixedly installed on one side of the connecting frame 22, a first adjusting disc 4 is rotatably connected to the top surface of the mounting cover 2, a plurality of positioning holes 37 are formed in the top surface of the first adjusting disc 4, a connecting sleeve 38 is fixedly sleeved inside the positioning hole 37, second fixing caps 39 are threadedly connected to both the top surface and the bottom surface of the connecting sleeve 38, a plurality of drainage tubes 47 are movably sleeved on the inner wall surface of the plurality of connecting sleeves 38, a wound connector 48 is fixedly sleeved on the inner wall surface of the plurality of drainage tubes 47, a series pipe 7 is arranged on the bottom surface of the first adjusting disc 4, and the plurality of liquid storage tanks 3 are connected in series with each other through the series pipe 7; an outer wall surface of the water inlet of the negative pressure pump 8 is fixedly sleeved with a liquid extraction pipe 9, the liquid extraction pipe 9 is movably sleeved on the inner wall surface of the connecting sleeve 38, an outer wall surface of the water outlet of the negative pressure pump 8 is fixedly sleeved with a liquid discharge pipe 10, and the liquid discharge pipe 10 is fixedly sleeved on the inner wall surface of the series pipe 7; an adjusting assembly is arranged on the top surface of the base 1 and is used for adjusting the use height of the mounting cover 2 and a plurality of liquid storage tanks 3; a limiting assembly is arranged on the top surface of the mounting cover 2 and is used for limiting and fixing the first adjusting disc 4 after it is rotated and adjusted. During use, the staff adjusts the use height of the mounting cover 2 and a plurality of liquid storage tanks 3 through the adjusting assembly, and then the staff can insert the drainage tube 47 and the wound connector 48 at the top of the first adjusting disc 4 into the wound;

[0053] Then the staff uses the negative pressure pump 8. At this time, the negative pressure pump 8 generates negative pressure to suck the accumulated liquid in the wound into the inside of the negative pressure pump 8 through the drainage tube 47 and the liquid extraction tube 9. Then the accumulated liquid inside the negative pressure pump 8 will be transported to the inside of the plurality of liquid storage tanks 3 through the liquid discharge pipe 10 and the series pipe 7, thereby achieving the effect of negative pressure drainage and discharge of the accumulated liquid in the wound;

[0054] When the staff needs to replace the drainage tube 47 and the wound connector 48 with different inner diameters according to the size of the wound, the staff unscrews and loosens the second fixing cap 39 connected to the liquid extraction tube 9. Then the staff can pull out the liquid extraction tube 9 from the inside of the connecting sleeve 38. Then the staff can rotate the first adjusting disc 4. At this time, the plurality of drainage tubes 47 and the wound connectors 48 at the top of the first adjusting disc 4 will rotate accordingly. During this process, the limiting assembly will limit and fix the adjusted first adjusting disc 4;

[0055] Furthermore, the staff can rotate the appropriate drainage tube 47 and the wound connector 48 to the position corresponding to the liquid extraction tube 9. Then, the staff can insert the liquid extraction tube 9 into the corresponding connecting sleeve 38 and fix it with the second fixing cap 39. In this way, the staff can quickly switch the use of multiple drainage tubes 47 and wound connectors 48, avoiding the staff spending a long time on the replacement of the drainage tube 47 and the wound connector 48, so as to avoid the wound being exposed to the outside for a long time due to the replacement of the drainage tube 47 and the wound connector 48, resulting in the wound being infected.

[0056] Embodiment 2

[0057] Based on the above Embodiment 1, referring to Figure 3 、 Figure 5 、 Figure 10 and Figure 12 The adjusting assembly includes: a second adjusting disc 14, the second adjusting disc 14 is rotatably connected to the top surface of the base 1, an adjusting screw 17 is fixedly installed on the top surface of the second adjusting disc 14, a connecting frame 18 is fixedly installed inside the mounting cover 2, a threaded connection ring 19 is rotatably connected inside the connecting frame 18, the threaded connection ring 19 is threadedly connected to the adjusting screw 17. When the staff needs to adjust the use height of multiple liquid storage tanks 3 according to the external environment, the staff rotates the second adjusting disc 14. Then, the adjusting screw 17 on the top of the second adjusting disc 14 will rotate accordingly. Then, under the threaded driving action of the adjusting screw 17 and the threaded connection ring 19, the threaded connection ring 19 will drive the mounting cover 2 and multiple liquid storage tanks 3 outside it to move up or down simultaneously, so as to achieve the effect of adjusting the use height of the mounting cover 2 and multiple liquid storage tanks 3 to adapt to different use environments. The limiting assembly includes: a plurality of mounting caps 43, a plurality of mounting caps 43 are fixedly installed on the top surface of the mounting cover 2, a second spring 44 is movably sleeved inside the mounting cap 43, a first limiting block 45 is movably sleeved inside the mounting cap 43, a plurality of first limiting grooves 40 are opened on the bottom surface of the first adjusting disc 4, and the inner circumferential wall surface of the first limiting groove 40 is movably sleeved with the first limiting block 45. When the first adjusting disc 4 is rotated and adjusted, the bottom surface of the first adjusting disc 4 will squeeze a plurality of first limiting blocks 45. Then, when the first limiting block 45 moves downward, it will squeeze the second spring 44. Then, when the position of the first limiting block 45 corresponds to the positions of a plurality of first limiting grooves 40 on the bottom surface of the first adjusting disc 4, the resilience of the second spring 44 will push the first limiting block 45 to reset and make the first limiting block 45 enter the first limiting groove 40 to limit the first adjusting disc 4, so as to achieve the effect of limiting and fixing the first adjusting disc 4 after adjustment.

[0058] Embodiment 3

[0059] Based on the above Embodiment 1 or 2, referring to Figure 2 、Figure 8 and Figure 9 , on the top surface of the first adjustment disk 4, an installation frame 5 is fixedly installed. A plurality of storage wheels 28 are rotatably connected to the outer wall surface of the installation frame 5. A plurality of mounting seats 29 are fixedly installed on the outer wall surface of the installation frame 5. On both sides of the mounting seat 29, a limiting frame 33 is rotatably connected respectively. A positioning column 34 is movably sleeved on the inner circular wall surface of the limiting frame 33. A first spring 35 is movably sleeved on the outer circular wall surface of the positioning column 34. One end of the positioning column 34 is fixedly installed on the inner wall surface of the installation frame 5. A limiting wheel 36 is rotatably connected inside the limiting frame 33. The staff can squeeze the drainage tube 47 between the two limiting wheels 36. Then, the two limiting wheels 36 will drive the limiting frame 33 to rotate due to the squeezing force. Then, the limiting frame 33 will squeeze the two first springs 35. When the drainage tube 47 enters between the two limiting frames 33, the resilience of the two first springs 35 will drive the two limiting frames 33 and the two limiting wheels 36 to reset. Then, the two limiting wheels 36 will limit and fix the drainage tube 47. In this way, the effect of placing and fixing a plurality of drainage tubes 47 is achieved. A placement groove 30 is opened on the top surface of the installation frame 5. A connection disk 31 is fixedly sleeved inside the placement groove 30. A spray head 32 is threadedly connected to the inner circular wall surface of the connection disk 31. When the staff removes the drainage tube 47 and the wound connector 48 for use, the staff can spray the disinfectant inside the placement groove 30 onto the surfaces of the wound connector 48 and the drainage tube 47 by pressing the spray head 32, so as to facilitate disinfection treatment of the drainage tube 47 and the wound connector 48 when they are in use.

[0060] Embodiment 4

[0061] Based on the above Embodiment 1, 2 or 3, referring to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 11 and Figure 13, a number of mounting seats 12 are fixedly installed on the outer wall surface of the mounting cover 2. A limiting plate 25 is fixedly installed on the bottom surface of the mounting seat 12. A tray 27 is slidably connected to one side of the mounting seat 12. A connecting rod 26 is rotatably connected to the bottom surface of the tray 27. The connecting rod 26 is rotatably connected to the mounting seat 12. The inner wall surface of the inner circle of the tray 27 is movably sleeved with the liquid storage tank 3. A number of limiting shells 13 are fixedly installed on the outer wall surface of the mounting cover 2. The limiting shell 13 is slidably connected to the liquid storage tank 3. When the liquid accumulated in the liquid storage tank 3 is full, the staff can push the liquid storage tank 3 upward. Then the limit of the liquid storage tank 3 and the tray 27 by the limiting shell 13 and the mounting seat 12 will be released. Then the staff can move the liquid storage tank 3 away from the outside of the mounting cover 2. Then as the liquid storage tank 3 moves, the tray 27 can drive the connecting rod 26 to rotate, so as to facilitate the staff to replace the liquid storage tank 3. A number of mounting grooves 41 are opened on the top surface of the base 1. A limiting ring 21 is fixedly sleeved inside the mounting groove 41. A second limiting block 23 is movably sleeved inside the mounting groove 41. The second limiting block 23 is movably sleeved with the inner wall surface of the inner circle of the limiting ring 21. A third spring 46 is movably sleeved inside the mounting groove 41. A number of second limiting grooves 24 are opened on the bottom surface of the second adjusting disc 14. The inner wall surface of the inner circle of the second limiting groove 24 is movably sleeved with the second limiting block 23, which is convenient for limiting and fixing the second adjusting disc 14 after it rotates. Two limiting rods 6 are respectively fixedly installed on both sides inside the base 1. Two limiting seats 20 are respectively fixedly installed on both sides of the mounting cover 2. The inner wall surface of the inner circle of the limiting seat 20 is movably sleeved with the limiting rod 6, which is convenient for guiding and limiting the mounting cover 2 when it moves and preventing it from rotating. A positioning seat 11 is fixedly installed on one side of the mounting cover 2. Threaded sleeves 15 are respectively fixedly installed on the top surface and the bottom surface of the positioning seat 11. The outer wall surface of the threaded sleeve 15 is threadedly connected with a first fixing cap 16. The inner wall surfaces of the positioning seat 11 and the threaded sleeve 15 are movably sleeved with the liquid extraction pipe 9. The staff can rotate the two first fixing caps 16 to squeeze the threaded sleeve 15 made of spring steel. Then the threaded sleeve 15 is squeezed and contracts inward to squeeze the liquid extraction pipe 9, so as to facilitate the adjustment of the inner diameter of the liquid extraction pipe 9 used.

[0062] Working principle: Please refer to Figures 1-14As shown, during use, the staff adjusts the usage heights of the installation cover 2 and multiple liquid storage tanks 3 through the adjustment component. Then, the staff can insert the drainage tube 47 and the wound connector 48 on the top of the first adjustment disc 4 into the wound. Subsequently, the staff uses the negative pressure pump 8. At this time, the negative pressure pump 8 generates negative pressure to suck the accumulated liquid in the wound into the interior of the negative pressure pump 8 through the drainage tube 47 and the liquid extraction tube 9. Then, the accumulated liquid inside the negative pressure pump 8 will be transported to the interiors of the multiple liquid storage tanks 3 through the liquid discharge tube 10 and the series connection tube 7, thereby achieving the effect of negative pressure drainage and discharge of the accumulated liquid in the wound. When the staff needs to replace the drainage tube 47 and the wound connector 48 with different inner diameters according to the size of the wound, the staff unscrews and loosens the second fixing cap 39 connected to the liquid extraction tube 9. Then, the staff can pull out the liquid extraction tube 9 from the interior of the connection sleeve 38. Subsequently, the staff can rotate the first adjustment disc 4. At this time, the multiple drainage tubes 47 and the wound connectors 48 on the top of the first adjustment disc 4 will rotate accordingly. During this process, the limit component will limit and fix the adjusted first adjustment disc 4. Then, the staff can rotate the appropriate drainage tube 47 and the wound connector 48 to a position corresponding to the liquid extraction tube 9. Then, the staff can insert the liquid extraction tube 9 into the corresponding connection sleeve 38 and fix it with the second fixing cap 39. In this way, the staff can quickly switch the use of the multiple drainage tubes 47 and the wound connectors 48, avoiding the staff spending a long time on the replacement of the drainage tube 47 and the wound connector 48, thereby achieving the effect of preventing the wound from being exposed to the outside for a long time due to the replacement of the drainage tube 47 and the wound connector 48, resulting in wound infection.

[0063] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional negative pressure wound drainage device, comprising: A base (1), on the top surface of the base (1) there is a mounting cover (2), on the bottom surface of the base (1) several self-locking universal wheels (42) are fixedly installed, and on the outer wall surface of the mounting cover (2) several liquid storage tanks (3) are provided; It is characterized in that, on the outer wall surface of the mounting cover (2) a connecting frame (22) is fixedly installed, on one side of the connecting frame (22) a negative pressure pump (8) is fixedly installed, on the top surface of the mounting cover (2) a first adjusting disc (4) is rotatably connected, on the top surface of the first adjusting disc (4) several positioning holes (37) are opened, inside the positioning holes (37) connecting sleeves (38) are fixedly sleeved, on the top surface and the bottom surface of the connecting sleeves (38) second fixing caps (39) are threadedly connected, inside the inner circular wall surfaces of several connecting sleeves (38) drainage tubes (47) are movably sleeved, inside the inner circular wall surfaces of several drainage tubes (47) wound connectors (48) are fixedly sleeved, on the bottom surface of the first adjusting disc (4) a series pipe (7) is provided, several liquid storage tanks (3) are connected in series with each other through the series pipe (7); On the outer circular wall surface of the water inlet of the negative pressure pump (8) a liquid suction pipe (9) is fixedly sleeved, the liquid suction pipe (9) is movably sleeved with the inner circular wall surface of the connecting sleeve (38), on the outer circular wall surface of the water outlet of the negative pressure pump (8) a liquid discharge pipe (10) is fixedly sleeved, the liquid discharge pipe (10) is fixedly sleeved with the inner circular wall surface of the series pipe (7); On the top surface of the base (1) an adjusting assembly is provided, and is used for adjusting the use height of the mounting cover (2) and multiple liquid storage tanks (3); On the top surface of the mounting cover (2) a limiting assembly is provided, and is used for limiting and fixing the first adjusting disc (4) after it rotates and adjusts.

2. The multifunctional negative pressure wound drainage device according to claim 1, characterized in that, The adjusting assembly includes: a second adjusting disc (14), the second adjusting disc (14) is rotatably connected to the top surface of the base (1), on the top surface of the second adjusting disc (14) an adjusting screw rod (17) is fixedly installed, inside the mounting cover (2) a connecting frame (18) is fixedly installed, inside the connecting frame (18) a threaded connection ring (19) is rotatably connected, and the threaded connection ring (19) is threadedly connected with the adjusting screw rod (17).

3. The multifunctional negative pressure wound drainage device according to claim 1, wherein The limiting assembly includes: several mounting caps (43), several mounting caps (43) are all fixedly installed on the top surface of the mounting cover (2), inside the mounting caps (43) second springs (44) are movably sleeved, inside the mounting caps (43) first limiting blocks (45) are movably sleeved, on the bottom surface of the first adjusting disc (4) several first limiting grooves (40) are opened, and the inner circular wall surface of the first limiting grooves (40) is movably sleeved with the first limiting blocks (45).

4. A multifunctional negative pressure wound drainage device according to claim 1, characterized in that: A mounting frame (5) is fixedly installed on the top surface of the first adjustment disc (4). A plurality of storage wheels (28) are rotatably connected to the outer wall surface of the mounting frame (5). A plurality of mounting seats (29) are fixedly installed on the outer wall surface of the mounting frame (5). Limiting frames (33) are rotatably connected to both sides of the mounting seat (29). A positioning column (34) is movably sleeved on the inner circular wall surface of the limiting frame (33). A first spring (35) is movably sleeved on the outer circular wall surface of the positioning column (34). One end of the positioning column (34) is fixedly installed on the inner wall surface of the mounting frame (5). A limiting wheel (36) is rotatably connected inside the limiting frame (33).

5. A multifunctional negative pressure wound drainage device according to claim 4, characterized in that: A placement groove (30) is formed in the top surface of the mounting frame (5). A connecting disc (31) is fixedly sleeved inside the placement groove (30). A spray head (32) is threadedly connected to the inner circular wall surface of the connecting disc (31).

6. The multifunctional negative pressure wound drainage device according to claim 1, wherein: A plurality of mounting seats (12) are fixedly installed on the outer wall surface of the mounting cover (2). A limiting plate (25) is fixedly installed on the bottom surface of the mounting seat (12). A tray (27) is slidably connected to one side of the mounting seat (12). A connecting rod (26) is rotatably connected to the bottom surface of the tray (27). The connecting rod (26) is rotatably connected to the mounting seat (12). The inner circular wall surface of the tray (27) is movably sleeved with the liquid storage tank (3). A plurality of limiting shells (13) are fixedly installed on the outer wall surface of the mounting cover (2). The limiting shells (13) are slidably connected to the liquid storage tank (3).

7. The multifunctional negative pressure wound drainage device according to claim 2, characterized in that: A plurality of mounting grooves (41) are formed in the top surface of the base (1). A limiting ring (21) is fixedly sleeved inside the mounting groove (41). A second limiting block (23) is movably sleeved inside the mounting groove (41). The second limiting block (23) is movably sleeved with the inner circular wall surface of the limiting ring (21). A third spring (46) is movably sleeved inside the mounting groove (41). A plurality of second limiting grooves (24) are formed in the bottom surface of the second adjustment disc (14). The inner circular wall surface of the second limiting groove (24) is movably sleeved with the second limiting block (23).

8. A multifunctional negative pressure wound drainage device according to claim 1, characterized in that: Limiting rods (6) are respectively fixedly installed on both sides inside the base (1). Limiting seats (20) are respectively fixedly installed on both sides of the mounting cover (2). The inner circular wall surface of the limiting seat (20) is movably sleeved with the limiting rod (6).

9. A multifunctional negative pressure wound drainage device according to claim 1, characterized in that: A positioning seat (11) is fixedly installed on one side of the mounting cover (2). Threaded sleeves (15) are respectively fixedly installed on the top surface and the bottom surface of the positioning seat (11). A first fixing cap (16) is threadedly connected to the outer circular wall surface of the threaded sleeve (15). The inner circular wall surfaces of the positioning seat (11) and the threaded sleeve (15) are movably sleeved with the liquid extraction pipe (9).

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