Postoperative drainage disinfection device and postoperative disinfection method

Abstract

The invention provides a postoperative drainage disinfection device and a postoperative disinfection method, and relates to the field of disinfection equipment. The postoperative drainage and disinfection device comprises an indwelling drainage tube, a drainage tube and a drainage tube, the indwelling drainage tube is communicated with a drainage pump; the external drainage bottle is communicated with one end, which is not inserted into the body, of the indwelling drainage tube; the disinfection assembly is communicated with the middle part of the indwelling drainage tube; the disinfection assembly is communicated with the external drainage bottle; a first flow stopping mechanism is arranged between the communication position of the indwelling drainage tube and the disinfection assembly and the end, inserted into the body, of the indwelling drainage tube. A second flow stopping mechanism is arranged between the external drainage bottle and the disinfection assembly; the drainage pump can drive liquid to circularly flow in the disinfection assembly, the indwelling drainage tube and the external drainage bottle for sterilization and disinfection; the drainage part can be disinfected in real time in the postoperative wearing process of a patient, and the infection risk is reduced.

Description

Technical Field

[0001] The invention relates to the field of disinfection equipment, in particular to a postoperative drainage disinfection device and a postoperative disinfection method. Background Art

[0002] Thyroidectomy is a common method for treating thyroid-related diseases (such as thyroid nodules, thyroid cancer, etc.). During the operation, the doctor will remove part or all of the thyroid tissue. Due to the particularity of the thyroid gland, effective drainage is required in time after the operation to prevent postoperative complications. Usually, drainage is performed by setting up a drainage tube after thyroidectomy. The functions of the drainage tube include: 1. Reducing fluid accumulation and hematoma: Blood vessels and tissues may be damaged during surgery, causing fluid (including blood and lymph) to accumulate near the surgical incision. The drainage tube can effectively drain these fluids and prevent the formation of hematoma or effusion. 2. Reduce swelling and pain: By draining the fluid, the local tension caused by fluid accumulation is reduced. 3. Monitor bleeding: Observation of drainage volume can provide information on bleeding conditions, which helps to deal with postoperative bleeding problems in a timely manner. 4. Promote healing: The removal of effusion can promote tissue apposition and accelerate the healing process.

[0003] However, the existing drainage tubes and drainage bottles or drainage bags for storing accumulated fluid need to be worn for a long time during the patient's recovery process. The drainage tubes and drainage bottles or drainage bags usually take 3-6 days to be removed, which not only makes the patient's daily activities inconvenient, but also because the drainage bottles or drainage bags need to be opened regularly to drain fluid, bacteria may be introduced. Bacteria are easy to further breed in the internal environment of the drainage tubes and drainage bottles or drainage bags, because these devices also store accumulated fluid for a long time, providing a good growth environment for bacteria, thereby increasing the risk of infection of the patient's wound connected to the drainage tube. Summary of the invention

[0004] The present invention aims to solve the problem in the prior art that bacteria accumulate in the drainage tube, drainage bottle or drainage bag for a long time, breed bacteria, and increase the risk of infection of the wound connected to the patient and the drainage tube. The present invention provides a postoperative drainage disinfection device and a postoperative disinfection method that can disinfect the drainage part in real time while the patient wears the drainage tube after surgery.

[0005] The technical solution adopted by the present invention is: A postoperative drainage disinfection device, comprising: An indwelling drainage tube, one end of which is used to be inserted into the body; and the indwelling drainage tube is connected to a drainage pump; an external drainage bottle connected to the end of the indwelling drainage tube that is not inserted into the body; and A disinfection component is connected to the middle part of the indwelling drainage tube; and the disinfection component is connected to the external drainage bottle; Among them, a first flow-stopping mechanism is arranged between the connecting point between the indwelling drainage tube and the disinfection component and the end of the indwelling drainage tube inserted into the body; a second flow-stopping mechanism is arranged between the external drainage bottle and the disinfection component; when the first flow-stopping mechanism is opened and the second flow-stopping mechanism is closed, the drainage pump can extract body fluids into the external drainage bottle through the indwelling drainage tube; when the first flow-stopping mechanism is closed and the second flow-stopping mechanism is opened, the drainage pump can drive the liquid to circulate in the disinfection component, the indwelling drainage tube and the external drainage bottle for sterilization and disinfection.

[0006] Furthermore, the indwelling drainage tube at least has a drainage section close to one end inserted into the body, and a delivery section close to one end of the external drainage bottle; the drainage section is provided with a suction port.

[0007] Furthermore, the drainage section is connected to a first extension section and a second extension section at one end close to the insertion body, and both the first extension section and the second extension section are provided with a suction port.

[0008] Furthermore, a second connector is provided at the connection point between the indwelling drainage tube and the drainage pump, and the second connector has at least two main interfaces respectively connected to the indwelling drainage tube and the drainage pump, as well as a second external interface and a third external interface.

[0009] Furthermore, a fixing mechanism is provided on the external drainage bottle; the fixing mechanism has at least a connecting seat, a slide groove is provided on the connecting seat, at least two sliding clamps are slidably provided in the slide groove, and a spring is provided between the sliding clamp and the inner wall of the slide groove.

[0010] Furthermore, the drainage pump is provided with an input interface and an output interface; the liquid inlet chamber inside the drainage pump is connected with the input interface, and a plurality of liquid inlet holes are provided at the bottom of the liquid inlet chamber; the liquid outlet chamber inside the drainage pump is connected with the output interface, and a plurality of liquid outlet holes are provided at the bottom of the liquid outlet chamber; and a capsule is provided inside the drainage pump, and the capsule has a plurality of compression chambers, and the compression chamber is connected with at least one of the liquid inlet holes and one of the liquid outlet holes; and a liquid outlet diaphragm is provided in the liquid outlet chamber; a liquid inlet diaphragm is provided in the compression chamber; a driving mechanism is provided on the side of the capsule away from the liquid inlet chamber and the liquid outlet chamber, and the capsule and the driving mechanism are connected and transmitted by a connecting rod.

[0011] Furthermore, the disinfection box of the disinfection assembly is provided with a first connecting port and a second connecting port; the internal chamber of the disinfection box is provided with a spiral infusion tube surrounding the outside of the ultraviolet lamp tube.

[0012] Furthermore, a first diverter connected to the first connecting port and a second diverter connected to the second connecting port are provided in the disinfection box; a filter plate is detachably provided in the first diverter and / or the second diverter.

[0013] Furthermore, the second communication port is communicated with the middle portion of the indwelling drainage tube; the first communication port is communicated with the external drainage bottle; and the drainage pump is a bidirectional gear pump.

[0014] A postoperative disinfection method, using the postoperative drainage disinfection device as described above, the postoperative disinfection method comprising the following steps: S10. Injecting liquid into the disinfection assembly or external drainage bottle; S20. Close the first flow-stopping mechanism on the indwelling drainage tube, connect the disinfection assembly and the indwelling drainage tube, and open the second flow-stopping mechanism to connect the external drainage bottle and the disinfection assembly; S30. Open the disinfection component and start the drainage pump to drive the liquid to circulate through the disinfection component, the indwelling drainage tube and the external drainage bottle to perform sterilization and disinfection.

[0015] The beneficial effects of the present invention are: 1. The disinfection device of the present invention relies on the setting of an indwelling drainage tube inserted into the body and connected to an external drainage bottle, and by connecting the indwelling drainage tube to a drainage pump, rapid and efficient drainage of accumulated fluid is performed; at the same time, an external disinfection component is used to connect the indwelling drainage tube and the external drainage bottle through the first connecting port and the second connecting port, respectively, and the driving of the drainage pump is coordinated so that the disinfectant can circulate inside the disinfection component, the indwelling drainage tube and the external drainage bottle for sterilization and disinfection, thereby achieving real-time disinfection and sterilization in the process of the patient wearing the drainage tube and the drainage bottle, which can reduce the risk of postoperative infection in the patient, and solves the problem in the prior art that bacteria store accumulated fluid for a long time in the drainage tube and the drainage bottle or the drainage bag, breed bacteria, and increase the risk of infection of the wound connected to the patient and the drainage tube; 2. The disinfection method of the present invention utilizes an external disinfection component to respectively connect the indwelling drainage tube and the external drainage bottle, and cooperates with the driving of the drainage pump to allow the disinfectant to circulate inside the disinfection component, the indwelling drainage tube and the external drainage bottle for sterilization, thereby achieving real-time disinfection and sterilization in the process of the patient wearing the drainage tube and the drainage bottle, which can reduce the risk of postoperative infection in the patient and solves the problem in the prior art that bacteria are stored in the drainage tube and the drainage bottle or the drainage bag for a long time, breeding bacteria, and increasing the risk of infection of the wound connected to the patient and the drainage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional schematic diagram of a disinfection device according to Embodiment 1 of the present invention; Figure 2 It is a cross-sectional schematic diagram of the conveying section of Example 1 of the present invention; Figure 3 is a three-dimensional schematic diagram of a fixing mechanism according to Embodiment 1 of the present invention; Figure 4 is a cross-sectional view of a fixing mechanism according to Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the internal structure of the disinfection box according to Embodiment 1 of the present invention; Figure 6 A top view of the disinfection box according to Embodiment 1 of the present invention; Figure 7 For the present invention Figure 6 AA surface section view; Figure 8 This is an exploded view of the disinfection box of Example 1 of the present invention; Fig. 9 It is a three-dimensional schematic diagram of the drainage pump according to Embodiment 1 of the present invention; Fig.10 is a cross-sectional view of a drainage pump according to Embodiment 1 of the present invention; Fig.11 is a three-dimensional schematic diagram of a fluid chamber according to Embodiment 1 of the present invention; Fig.12 is a three-dimensional schematic diagram of a capsule according to Example 1 of the present invention; Fig.13 is a three-dimensional schematic diagram of a connecting rod according to Embodiment 1 of the present invention; Fig.14 is a three-dimensional schematic diagram of a shaft sleeve according to Embodiment 1 of the present invention; Fig.15 It is a three-dimensional schematic diagram of an indwelling drainage tube according to Example 2 of the present invention; Fig.16 Flow chart of the disinfection method of embodiment 4 of the present invention.

[0018] Reference numerals: 100 - indwelling drainage tube, 110 - drainage section, 111 - first suction port, 112 - second suction port, 113 - third suction port, 114 - first extension section, 115 - second extension section, 116 - fourth suction port, 117 - fifth suction port, 120 - delivery section, 122 - pressure-resistant strip, 130 - first connector, 132 - first external interface, 140 - second connector, 142 - second external interface, 143 - third external interface, 150 - limiter sticker, 160 - first flow-stopping clip; 200-external drainage bottle, 210-liquid inlet, 220-liquid outlet, 230-liquid discharge outlet, 240-sealing plug, 250-fixing mechanism, 251-connecting seat, 252-sliding groove, 253-sliding splint, 254-sliding part, 255-clamping part, 256-spring; 300-disinfection assembly, 310-first connecting pipe, 320-second connecting pipe, 330-disinfection box, 331-first connecting port, 332-second connecting port, 333-stop valve, 340-first diverter, 342-first groove, 350-second diverter, 351-slot, 352-second groove, 353-third groove, 360-spiral infusion tube, 370-ultraviolet lamp, 380-filter plate, 390-sealing cover; 400-drainage pump, 401-input interface, 402-output interface, 403-isolation plate, 410-fluid chamber, 411-liquid outlet chamber, 412-liquid inlet chamber, 413-liquid inlet hole, 414-liquid outlet hole, 420-cylinder body, 430-driving mechanism, 431-motor, 432-eccentric wheel, 433-transmission shaft, 434-inclined hole, 435-sleeve, 436-first convex rib, 437-second limiting groove, 438-second convex rib, 440-capsule, 442-compression chamber, 450-connecting rod, 451-docking part, 452-mounting hole, 453-straight rod part, 454-mounting groove, 455-first limiting groove, 460-liquid inlet diaphragm, 462-first fixing rod, 470-liquid outlet diaphragm, 472-second fixing rod. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention.

[0021] The embodiments of the invention are described in detail below with reference to the accompanying drawings.

[0022] Example 1

[0023] After the existing thyroidectomy surgery, a drainage tube and a drainage bottle or drainage bag for storing the accumulated fluid are needed to assist in draining the blood or lymph and other body fluids that seep out of the patient's wound. During the patient's recovery process, the drainage tube and drainage bottle or drainage bag need to be worn for a long time, and these devices usually take 3-6 days to remove, which not only makes the patient's daily activities inconvenient, but also may cause bacteria to grow in the drainage tube and drainage bottle or drainage bag due to long-term use, because these devices will store accumulated fluid for a long time, providing a good growth environment for bacteria, and increasing the risk of infection of the wound connected to the patient and the drainage tube. It is also very inconvenient to frequently replace the drainage tube and drainage bottle or drainage bag during the patient's recovery period, especially the replacement of the drainage tube requires the removal of the gauze at the wound, which will increase the patient's pain and is not conducive to the recovery of the wound.

[0024] In order to solve the above problems in the prior art, this embodiment provides a postoperative drainage disinfection device, which is mainly used for the drainage, collection and disinfection of blood and lymph exuded from the surgical site of the patient after thyroidectomy. The postoperative drainage disinfection device can disinfect the drainage part in real time while the patient is wearing it after surgery. Figure 1-Figure 14 The postoperative drainage disinfection device mainly comprises: an indwelling drainage tube 100, an external drainage bottle 200 and a disinfection assembly 300 interconnected with the indwelling drainage tube 100, etc.

[0025] The indwelling drainage tube 100 is used to be inserted into the wound of a patient after surgery to drain body fluids such as blood and lymph to the outside of the body. Figure 1As shown in , the indwelling drainage tube 100 is mainly composed of a drainage section 110 and a conveying section 120 that are interconnected. In this embodiment, one end of the drainage section 110 is connected to the conveying section 120, and the other end of the drainage section 110 away from the conveying section 120 is provided with a first suction port 111. When in use, the drainage section 110 is inserted into the surgical wound of the patient as a whole. One end of the conveying section 120 is connected to the drainage section 110, and the other end is used to connect to the external drainage bottle 200 to input the outflowing body fluid into the external drainage bottle 200. At the same time, the conveying section 120 is provided with a first connector 130 at a position close to one end connected to the drainage section 110. The first connector 130 is roughly in the shape of a postoperative disinfection method, with three connecting ports, two of which are connected to the pipeline of the conveying section 120, and the other is a first external interface 132. The first external interface 132 is used to connect the indwelling drainage tube 100 and the disinfection component 300, so as to perform liquid circulation disinfection. It should be noted that in one or more other embodiments, the first connector 130 may be replaced by providing a branch pipe at one end where the conveying section 120 is connected to the drainage section 110. In addition, a first flow-stopping mechanism is provided on the conveying section 120 and located between the first connector 130 and the connection between the conveying section 120 and the drainage section 110. The first flow-stopping mechanism in this embodiment is a first flow-stopping clamp 160, which is used to block the connection between the conveying section 120 and the drainage section 110. It should be noted that in one or more other embodiments, a roller-type flow controller or the like may be used as the first flow-stopping mechanism.

[0026] The external drainage bottle 200 is used to collect and temporarily store body fluids such as blood and lymph drained to the outside of the body by the indwelling drainage tube 100. The external drainage bottle 200 is roughly in the shape of an elliptical cylinder, and the interior is a accommodating chamber. A liquid inlet 210 is provided on the top of the external drainage bottle 200, and the liquid inlet 210 is connected to the conveying section 120 at the end of the indwelling drainage tube 100 that is not inserted into the patient's body, so that the body fluid enters the external drainage bottle 200. A liquid outlet 220 is provided on the side wall of the external drainage bottle 200 near the bottom, and a sealing plug 240 is provided on the liquid outlet 220. The sealing plug 240 serves as the second flow stop mechanism of this embodiment. When disinfection is required, the sealing plug 240 can be opened, and the external pipeline can be connected through the liquid outlet 220, so that the external drainage bottle 200 is connected to the disinfection assembly 300. It should also be pointed out that in one or more other embodiments, a flow stop clamp or a roller-type flow controller can also be used as the second flow stop mechanism.

[0027] At the same time, a drainage pump 400 is provided between the liquid inlet 210 of the external drainage bottle 200 and the delivery section 120 of the indwelling drainage tube 100. In this embodiment, the drainage pump 400 can promptly draw the body fluids exuded from the patient's wound and accumulated in the indwelling drainage tube 100 into the external drainage bottle 200 to prevent the body fluids in the wound from leaking out of the wound. An input interface 401 and an output interface 402 are provided on the outer top of the drainage pump 400. The input interface 401 is connected to the delivery section 120 of the indwelling drainage tube 100; the output interface 402 is connected to the liquid inlet 210 of the external drainage bottle 200. Figure 9-14As shown in the figure, the internal structure of the drainage pump 400 mainly includes a fluid chamber 410, a cylinder 420 and a driving mechanism 430 from top to bottom. The fluid chamber 410 is roughly cylindrical in shape, with an upper opening and connected to the inner side of the top wall of the housing of the drainage pump 400. An annular isolation plate 403 is provided on the inner side of the top wall of the housing of the drainage pump 400. The isolation plate 403 extends to abut against the bottom wall of the fluid chamber 410, thereby dividing the internal space of the fluid chamber 410 into a liquid outlet chamber 411 in the middle and a liquid inlet chamber 412 in the outer peripheral ring; the liquid outlet chamber 411 is connected to the output interface 402 at the top of the drainage pump 400, and the liquid inlet chamber 412 is connected to the input interface 401 at the top of the drainage pump 400. The bottom wall of the fluid chamber 410 is also provided with a liquid inlet through hole 413 and a liquid outlet through hole 414. The liquid inlet through hole 413 is relatively far from the center of the bottom wall of the fluid chamber 410 and is arranged at the bottom of the liquid inlet chamber 412; the liquid outlet through hole 414 is relatively close to the center of the bottom wall of the fluid chamber 410 and is arranged at the bottom of the liquid outlet chamber 411. In this embodiment, four liquid inlet through holes 413 are arranged and are evenly distributed along the circumference; there are also four liquid outlet through holes 414, which are evenly distributed along the circumference. At the same time, the cylinder body 420 is also roughly cylindrical in shape, and the upper part of the cylinder body 420 is open and connected to the bottom of the bottom wall of the fluid chamber 410. A bladder 440 is arranged in the cylinder body 420. The bladder 440 is made of elastic materials such as chloroprene rubber, EPDM rubber, nitrile rubber, fluororubber, Teflon, etc., and has four compression chambers 442 evenly arranged along the circumference. One end of the compression chamber 442 is open and connected to the bottom wall of the fluid chamber 410. Each compression chamber 442 is connected to a liquid outlet hole 414 and a liquid inlet hole 413; the other end of the compression chamber 442 has a smaller diameter, passes through the bottom wall of the cylinder body 420, and is connected to the connecting rod 450 below the cylinder body 420. The upper part of the connecting rod 450 is a docking portion 451 extending outward in four different directions, and a mounting hole 452 is provided on one end of the docking portion 451 facing outward, and the mounting hole 452 is used to connect the end of the compression chamber 442 extending out of the cylinder body 420; the lower part of the connecting rod 450 is a straight rod portion 453, and a mounting groove 454 is provided on one end of the straight rod portion 453 away from the docking portion 451, which is used to connect the driving mechanism 430 below. The driving mechanism 430 mainly includes a motor 431, an eccentric wheel 432 and a transmission shaft 433. The motor 431 is arranged at the bottom of the housing of the drainage pump 400, and the output end of the motor 431 is connected to the eccentric wheel 432 for transmission. An inclined hole 434 is arranged on the other side of the eccentric wheel 432 away from the motor 431, and one end of the transmission shaft 433 is inserted into the inclined hole 434, and the other end of the transmission shaft 433 is sleeved with a sleeve 435, and the sleeve 435 is embedded in the mounting groove 454 of the straight rod part 453. Therefore, when the motor 431 is working, the connecting rod 450 can be driven to rotate obliquely through the eccentric wheel 432 and the transmission shaft 433 to control the contraction and expansion of the compression chamber 442.The fluid inlet and outlet control of the drainage pump 400 is realized by the inlet diaphragm 460 in the compression chamber 442 and the outlet diaphragm 470 in the outlet chamber 411. The inlet diaphragm 460 is connected to the lower surface of the bottom wall of the fluid chamber 410 through the first fixing rod 462. The inlet diaphragm 460 is roughly in the shape of a concave-convex disc and is located near the inlet through hole 413. When the compression chamber 442 contracts, the inlet diaphragm 460 fits and blocks the inlet through hole 413, blocking the inlet passage; when the compression chamber 442 expands, the inlet diaphragm 460 is separated from the inlet through hole 413, opening the inlet passage. The liquid outlet diaphragm 470 is connected to the upper surface of the bottom wall of the fluid chamber 410 through the second fixing rod 472. The liquid outlet diaphragm 470 is roughly in the shape of a concave-convex disc and is located near the liquid outlet through hole 414. When the compression chamber 442 expands, the liquid outlet diaphragm 470 fits and blocks the liquid outlet through hole 414, blocking the liquid outlet passage; when the compression chamber 442 contracts, the liquid outlet diaphragm 470 detaches from the liquid outlet through hole 414, opening the liquid outlet passage. The bladder 440 in the drainage pump 400 of the present embodiment has four compression chambers 442, which cyclically contract and expand, so that the up and down displacement amplitude of the docking portion 451 on the edge of the connecting rod 450 is small during operation, thereby reducing the vibration intensity of the entire drainage pump 400, avoiding large-scale shaking of the indwelling drainage tube 100 and the external drainage bottle 200 connected to the drainage pump 400, and reducing the impact on the flow of liquid in the pipeline; and the drainage pump 400 of the present embodiment has a compact structure and a small size, so that the drainage pump 400 can adapt to the working needs of the postoperative drainage disinfection device.

[0028] The disinfection assembly 300 is used for liquid circulation disinfection, and sterilizes and disinfects the interior of the indwelling drainage tube 100 and the external drainage bottle 200 through the circulation of liquid. The disinfection assembly 300 mainly includes a first connecting tube 310, a second connecting tube 320, and a disinfection box 330. The disinfection box 330 is roughly in the shape of a rectangular parallelepiped. A first connecting port 331 is provided on the side wall of the disinfection box 330; a second connecting port 332 is provided on the top of the disinfection box 330. The first connecting tube 310 connects the first connecting port 331 of the disinfection box 330 and the first external interface 132 on the conveying section 120; the second connecting tube 320 connects the second connecting port 332 of the disinfection box 330 and the liquid outlet 220 on the external drainage bottle 200. A threaded protective cap is provided between the first connecting tube 310 and the first external interface 132 for detachable connection; a threaded protective cap is also provided between the second connecting tube 320 and the liquid outlet 220 for detachable connection, so that when the patient needs to leave the bed and move, the disinfection assembly 300 can be separated from the indwelling drainage tube 100 and the external drainage bottle 200 to facilitate the patient to recover adaptive activities. A stop valve 333 is provided on the first connecting port 331, which is used to close the first connecting port 331 when the disinfection liquid is filled into the disinfection box 330 to prevent the disinfection liquid from flowing out of the first connecting tube 310. At the same time, a first diverter 340 and a second diverter 350 are provided in the internal chamber of the disinfection box 330; the first diverter 340 is connected to the first connecting port 331; the second diverter 350 is connected to the second connecting port 332; the first diverter 340 and the second diverter 350 are connected through a spiral infusion tube 360. Specifically, the second diverter 350 is arranged at the top of the internal chamber of the disinfection box 330, the upper liquid pipeline interface of the second diverter 350 is connected to the second connecting port 332, the lower part of the second diverter 350 is provided with four second grooves 352, each of which is provided with a liquid pipeline interface and a lamp connector, and the second diverter 350 divides the liquid circulation pipeline into four streams, so that the disinfection is more complete. The first diverter 340 is arranged at the bottom of the internal chamber of the disinfection box 330, the side liquid pipeline interface of the first diverter 340 is connected to the first connecting port 331, the upper part of the first diverter 340 is provided with four first grooves 342, each of which is also provided with a liquid pipeline interface and a lamp connector, and the first diverter 340 re-merges the four streams into a liquid circulation pipeline. Furthermore, a spiral infusion tube 360 ​​is arranged between the liquid pipeline interface of the first groove 342 and the second groove 352. The inner wall of the spiral infusion tube 360 ​​is coated with a nano-silver antibacterial layer to reduce bacterial colonization; the external joint is made of ultraviolet sensitive material, which can be automatically disinfected when exposed to a medical ultraviolet lamp. An ultraviolet lamp tube 370 is arranged between the lamp tube joints of the first groove 342 and the second groove 352, and the spiral infusion tube 360 ​​surrounds the outside of the ultraviolet lamp tube 370, so that the liquid flowing through the spiral infusion tube 360 ​​can be fully sterilized.In one or more other embodiments, the number of the spiral infusion tube 360 ​​and the ultraviolet light tube 370 may be 2, 4, 5, or more; or only one set of the spiral infusion tube 360 ​​and the ultraviolet light tube 370 may be provided, in which case the first diverter 340 and the second diverter 350 may not be provided, and the first connecting port 331 and the second connecting port 332 are directly connected through the two ends of the spiral infusion tube 360. Preferably, the shell of the disinfection box 330 of this embodiment is made of ultraviolet shielding material to prevent ultraviolet radiation from affecting the health of the patient.

[0029] A specific working method of this embodiment is: During daily wearing, the first stop clamp 160 on the indwelling drainage tube 100 is opened, and the liquid outlet 220 on the external drainage bottle 200 is closed with the sealing plug 240, and the drainage pump 400 is started at regular intervals. The drainage pump 400 can extract body fluid from the patient's wound to the external drainage bottle 200 through the indwelling drainage tube 100, and the body fluid is stored in the external drainage bottle 200 to prevent the accumulation of body fluid in the wound and the breeding of bacteria; the equipment is disinfected and cleaned regularly at regular intervals; during the disinfection process, first, the first connecting port 331 is closed through the stop valve 333, and disinfectant is injected into the disinfection box 330; thereafter, the first stop clamp 160 on the indwelling drainage tube 100 is closed, the connection between the delivery section 120 and the drainage section 110 inside the wound is cut off, and the first connecting pipe 310 of the disinfection component 300 and the first connector 130 on the first connector 130 are connected. The external interface 132 is opened, and the stop valve 333 is opened, and the sealing plug 240 is opened to connect the liquid outlet 220 on the external drainage bottle 200 and the second connecting pipe 320 of the disinfection component 300; then, the ultraviolet lamp 370 in the disinfection box 330 is turned on, and the drainage pump 400 is started to drive the disinfectant to circulate through the disinfection component 300, the indwelling drainage tube 100 and the external drainage bottle 200 in sequence for sterilization and disinfection; after the disinfection is completed, the ultraviolet lamp 370 and the drainage pump 400 in the disinfection box 330 are closed, the first stop clamp 160 on the indwelling drainage tube 100 is opened, the connection between the conveying section 120 and the drainage section 110 inside the wound is restored, and the first connecting pipe 310 of the disinfection component 300 and the first external interface 132 on the first connector 130 are disconnected, and the sealing plug 240 is closed to restore the normal drainage state.

[0030] In this embodiment, the postoperative drainage disinfection device relies on the indwelling drainage tube 100 inserted into the body and connected to the external drainage bottle 200, and connects the drainage pump 400 to the indwelling drainage tube 100 to perform rapid and efficient drainage of the accumulated fluid; at the same time, the external disinfection component 300 is used to connect the indwelling drainage tube 100 and the external drainage bottle 200 through the first connecting port 331 and the second connecting port 332, respectively, and cooperates with the drive of the drainage pump 400, so that the disinfectant can circulate inside the disinfection component 300, the indwelling drainage tube 100 and the external drainage bottle 200 for sterilization and disinfection, thereby achieving real-time disinfection and sterilization in the process of the patient wearing the drainage tube and the drainage bottle, which can reduce the risk of postoperative infection in the patient, and solves the problem in the prior art that bacteria store accumulated fluid for a long time in the drainage tube and the drainage bottle or the drainage bag, breed bacteria, and increase the risk of infection of the wound connected to the patient and the drainage tube.

[0031] In addition, in this embodiment, in order to increase the coverage of suction, a second suction port 112 and a third suction port 113 are provided in the middle of the drainage section 110, so as to reduce the accumulation of body fluids exuded from the surgical site in the wound. In addition, a limiting sticker 150 is provided at one end of the delivery section 120 close to the drainage section 110. When in use, the limiting sticker 150 is attached to the patient's skin surface to limit the movement of the indwelling drainage tube 100 to avoid affecting the healing of the wound or causing discomfort to the patient. A breathable layer is provided inside the limiting sticker to prevent adverse reactions to the patient's local skin. At the same time, since the delivery section 120 is a flexible tube, it is easy for the pipeline to be excessively twisted or compressed due to the movement of the patient or body pressure, which may affect the flow of liquid in the pipeline. Figure 2As shown in , a pressure-resistant strip 122 is embedded along the pipeline inside the delivery section 120 where the drainage tube 100 is retained. The pressure-resistant strip 122 is made of silicone material, and its cross section is roughly triangular, which prevents the delivery section 120 from being excessively bent and can always maintain a certain liquid flow space, thereby preventing the patient from moving, especially when the neck moves, and the drainage tube is bent and blocked, ensuring smooth drainage. In addition, a second connector 140 is also provided on the delivery section 120, near the end connected to the drainage pump 400. The second connector 140 is roughly in an inclined cross-shaped structure, with four interfaces, including two main interfaces, and a second external interface 142 and a third external interface 143. Among them, the two main interfaces are connected to the delivery section 120 and the input interface 401 of the drainage pump 400 respectively, and a threaded protective cap is provided between the delivery section 120 and the main interface for detachable connection between the hose and the hard tube. The second external interface 142 is set upwardly and tilted, and the second external interface 142 can be used to inject disinfectant into the external drainage bottle 200, so that during the disinfection and cleaning process of the equipment, disinfectant can be injected into the external drainage bottle 200 instead of filling the disinfection box with disinfectant, making the use of the postoperative drainage disinfection device of this embodiment more convenient. It should also be pointed out that in one or more other embodiments, the second external interface 142 can also be used to connect the auxiliary drainage tube, and the other end of the auxiliary drainage tube is connected to the puncture drainage needle for drainage of superficial subcutaneous effusion; at this time, the two cavities of the indwelling drainage tube 100 and the auxiliary drainage tube are not connected to each other, and the deep tissue exudate and the superficial subcutaneous effusion in the thyroid bed are drained respectively, which can avoid cross infection. At the same time, the third external interface 143 is set downwardly and tilted, and the third external interface 143 is mainly used to discharge the gas in the indwelling drainage tube 100 to avoid blockage caused by gas filling in the tube, which affects the drainage work of the postoperative drainage disinfection device of this embodiment.

[0032] In this embodiment, a drain port 230 is also provided at the bottom of the external drainage bottle 200. The drain port 230 is used to discharge the accumulated body fluid in the external drainage bottle 200 when there is a lot of fluid in the external drainage bottle 200, and to discharge the liquid in the entire circulation pipeline after disinfection. At the same time, a fixing mechanism 250 is also provided on the side wall of the external drainage bottle 200. The fixing mechanism 250 mainly includes a connecting seat 251 connected to the side wall of the external drainage bottle 200, and two sliding clamps 253 slidably arranged on the connecting seat 251. The connecting seat 251 is roughly in the shape of a rectangular parallelepiped, and two slide grooves 252 are provided on the side of the connecting seat 251 away from the external drainage bottle 200. The two slide grooves 252 are arranged parallel to each other, and the bottoms of the two slide grooves 252 are connected to each other. In addition, two sliding clamps 253 are symmetrically arranged on the side of the connecting seat 251 away from the external drainage bottle 200, and the sliding clamps 253 are mainly composed of a sliding portion 254 and a clamping portion 255. Among them, the main body of the sliding portion 254 is a slider, which is slidably embedded in the bottom of the two slide grooves 252, and two connecting rods are arranged outward at both ends of the main part of the sliding portion 254. The two connecting rods are respectively passed through the two slide grooves 252 and connected to the clamping portion 255 outside the slide groove 252. The clamping portion 255 is roughly L-shaped and is used to adapt to the shape of the edge of the bed. In addition, a spring 256 is provided between the sliding portion 254 of the two sliding clamps 253 and the inner wall of the slide groove 252, so that when the patient lies on the bed, the clamping portion 255 of the two sliding clamps 253 can apply force from the upper and lower directions to fix the external drainage bottle 200 to the edge of the bed, thereby preventing the patient from colliding with the external drainage bottle 200 during activities on the bed and causing it to overturn and tilt, affecting the drainage of the postoperative drainage disinfection device of this embodiment or causing the liquid in the external drainage bottle 200 to spill out. On the other hand, the spring 256 provided in the fixing mechanism 250 can also play a shock-absorbing role, preventing the vibration generated by the drainage pump 400 during operation from affecting the external drainage bottle 200, causing the external drainage bottle 200 to be unstable or overturned.

[0033] In this embodiment, the input interface 401 of the drainage pump 400 is also designed as a gradually changing inner diameter interface, and the inner diameter of the input interface 401 gradually decreases from the external end to the internal end, thereby reducing the noise generated by the drainage pump 400 during suction.

[0034] In this embodiment, a slot 351 is also provided at the second diverter 350 of the disinfection box 330, and a filter plate 380 is inserted into the slot 351, and an arc-shaped third groove 353 is also provided around the opening of the slot 351. The arc-shaped third groove 353 is used to install the sealing cover 390 to seal the inside of the disinfection box 330 on the one hand; on the other hand, when the filter plate 380 is inserted into the slot 351, it will not enter the slot 351 completely, and the outward end of the filter plate 380 will remain in the arc-shaped third groove 353, so that when the filter plate 380 needs to be pulled out, the third groove 353 can provide a larger operating space, which is more convenient. After the filter plate 380 is inserted into the slot 351, it will be located on the cross section of the main pipeline of the second diverter 350. When the disinfection and cleaning operation is performed, the drainage pump 400 extracts the liquid for circulation, and the liquid can also drive the solid impurities in the pipeline, and collect them through the filter plate 380, so that the blockage caused by the solid impurities mixed in the indwelling drainage tube can be eliminated.

[0035] The disinfectant in this embodiment can be an alcohol disinfectant or a hydrogen peroxide solution, etc. It should be noted that in one or more other embodiments, distilled water or physiological saline can be used instead of the disinfectant, and the effect of sterilization and disinfection can be achieved by increasing the irradiation intensity of the ultraviolet light tube 370 in the disinfection box 330 at the same time.

[0036] Preferably, in this embodiment, a liquid storage bag can be detachably provided on the first connecting tube 310 or the second connecting tube 320 of the disinfection assembly 300 for storing disinfectant. During the disinfection and cleaning process of the device, the disinfectant can be quickly filled into the circulation pipe by connecting the liquid storage bag to the connecting tube, thereby simplifying the operation of filling the disinfectant into the disinfection box, making the use of the postoperative drainage disinfection device of this embodiment more convenient.

[0037] Preferably, if Fig.13 , Fig.14 As shown in , in this embodiment, four first ribs 436 evenly distributed along the circumferential direction may be provided on the outer side of the sleeve 435, and four first limiting grooves 455 evenly distributed along the circumferential direction may be provided in the mounting groove 454 of the connecting rod 450, and the first limiting grooves 455 and the first ribs 436 are adapted to each other. At the same time, four second ribs 438 evenly distributed along the circumferential direction may be provided on the outer side of the transmission shaft 433 of the driving mechanism 430, and four second limiting grooves 437 evenly distributed along the circumferential direction may be provided on the inner side of the sleeve 435, and the second limiting grooves 437 and the second ribs 438 are also adapted to each other. By providing the limiting grooves and the ribs, the stable transmission between the connecting rod 450 and the sleeve 435, and between the sleeve 435 and the transmission shaft 433 is ensured. It should also be pointed out that in one or more other embodiments, the connection between the connecting rod 450 and the sleeve 435, and between the sleeve 435 and the transmission shaft 433 may also be carried out by interference fit.

[0038] Example 2

[0039] A variation is proposed based on the postoperative drainage disinfection device of the above embodiment, and a second embodiment is provided below.

[0040] See also Fig.15 The external drainage bottle 200, disinfection assembly 300 and drainage pump 400 of the second embodiment are substantially the same as those of the first embodiment. The difference between the second embodiment and the first embodiment mainly lies in the structure of the drainage section 110 of the indwelling drainage tube 100, which is used to adapt to the needs of patients in different situations.

[0041] like Fig.15 As shown in , the drainage section 110 of this embodiment is different from the drainage section 110 of the first embodiment in that the first suction port 111 is not provided, and the first extension section 114 and the second extension section 115 are provided at the end of the drainage section 110 away from the conveying section 120, and the first extension section 114 and the second extension section 115 are respectively extended obliquely to both sides, and the first extension section 114, the second extension section 115 and the drainage section 110 roughly form a connection structure in the shape of a postoperative disinfection method. The fourth suction port 116 and the fifth suction port 117 are respectively provided at the end of the first extension section 114 and the second extension section 115 extending into the patient's body. The indwelling drainage tube 100 of this embodiment is mainly designed for patients after total thyroidectomy. Since the thyroid glands and a large number of cancerous lymph nodes on both sides of the patient are removed after total thyroidectomy, the wound is relatively large. When in use, the first extension section 114 and the second extension section 115 can be respectively extended into the space on both sides of the patient's neck to fully drain and avoid fluid accumulation.

[0042] Example 3

[0043] A variation is proposed based on the postoperative drainage disinfection device of the above embodiment, and a third embodiment is provided below.

[0044] The third embodiment has substantially the same structure as the indwelling drainage tube 100, the external drainage bottle 200, and the disinfection assembly 300 of the above-mentioned embodiment. The difference between the third embodiment and the first embodiment mainly lies in the structure of the drainage pump 400. In this embodiment, the drainage pump 400 adopts a bidirectional gear pump, so that the liquid in the pipeline can be driven from two flow directions. At the same time, in this embodiment, the first connecting tube 310 and the second connecting tube 320 of the disinfection assembly 300 are also reversed, and the second connecting tube 320 connects the second connecting port 332 of the disinfection box 330 and the first external interface 132 on the conveying section 120; the first connecting tube 310 connects the first connecting port 331 of the disinfection box 330 and the liquid outlet 220 on the external drainage bottle 200.

[0045] When the postoperative drainage disinfection device of the present embodiment is used, during daily wearing, the drainage pump 400 is started at regular intervals to deliver liquid in a positive direction, and the drainage pump 400 can extract body fluid from the patient's wound to the external drainage bottle 200 through the indwelling drainage tube 100; and during the disinfection and cleaning process, first, the first connecting port 331 is closed through the stop valve 333, and disinfectant is injected into the disinfection box 330; then, the first stop clamp 160 on the indwelling drainage tube 100 is closed, the connection between the delivery section 120 and the drainage section 110 inside the wound is cut off, and the second connecting pipe 320 of the disinfection component 300 and the first external interface 132 on the first connector 130 are connected, and the sealing plug 240 is opened to connect the liquid outlet 231 on the external drainage bottle 200 20 and the first connecting tube 310 of the disinfection component 300; then, turn on the ultraviolet lamp tube 370 in the disinfection box 330, and start the drainage pump 400 to reversely transport the liquid, driving the disinfectant to circulate through the disinfection component 300, the external drainage bottle 200 and the indwelling drainage tube 100 in sequence for sterilization and disinfection; after the disinfection is completed, turn off the ultraviolet lamp tube 370 and the drainage pump 400 in the disinfection box 330, open the first stop clamp 160 on the indwelling drainage tube 100, restore the connection between the delivery section 120 and the drainage section 110 inside the wound, disconnect the second connecting tube 320 of the disinfection component 300 and the first external interface 132 on the first connector 130, close the sealing plug 240, and restore the normal drainage state.

[0046] In this embodiment, the postoperative drainage disinfection device is provided with a bidirectional gear pump as the drainage pump 400, so that during the disinfection process, the liquid in the indwelling drainage tube 100 can be backwashed and circulated, so that the existing pipeline blockages can be easily cleared, and the debris in the pipeline can be more easily washed away by the liquid, and then collected by the filter plate 380 in the disinfection component 300, thereby achieving the improvement of the pipeline cleaning efficiency of the device while performing sterilization and disinfection. In addition, in this embodiment, the positions of the first connecting tube 310 and the second connecting tube 320 of the disinfection component 300 are exchanged in order to keep the debris in the pipeline that needs to be filtered and removed from the pipeline concentrated on the upper surface of the filter plate 380 for collection during the backwash cycle.

[0047] Example 4

[0048] On the basis of the above-mentioned embodiments, a postoperative disinfection method using the postoperative drainage disinfection device is further proposed, and a fourth embodiment is provided below.

[0049] See also Fig.16The postoperative disinfection method in the fourth embodiment is mainly used for the disinfection of the surgical site of the patient during the drainage of exuded blood and lymph after thyroidectomy. The postoperative disinfection method can disinfect the drainage part in real time while the patient is wearing it after surgery. The postoperative disinfection method uses the postoperative drainage disinfection device in the above embodiment and mainly includes the following steps: S10. Close the first connecting port 331 through the stop valve 333, and inject disinfectant into the disinfection box 330. Alternatively, by providing a second connector 140 on the conveying section 120, close to the end connected to the drainage pump 400, inject disinfectant into the external drainage bottle 200 through the second external interface 142 of the second connector 140, that is, inject the disinfectant into the disinfection box 330 or the external drainage bottle 200 in advance. The disinfectant in this embodiment can be an alcohol disinfectant or a hydrogen peroxide solution. It should also be pointed out that in one or more other embodiments, distilled water or physiological saline can also be used instead of the disinfectant, and the effect of sterilization and disinfection can be achieved by simultaneously increasing the irradiation intensity of the ultraviolet lamp 370 in the disinfection box 330.

[0050] S20. Close the first stopper clip 160 on the indwelling drainage tube 100, cut off the connection between the delivery section 120 and the drainage section 110 inside the wound, connect the first connecting tube 310 of the disinfection assembly 300 and the first external interface 132 on the first connector 130, and open the sealing plug 240 to connect the liquid outlet 220 on the external drainage bottle 200 and the second connecting tube 320 of the disinfection assembly 300. It should also be noted that in one or more other embodiments, a roller-type flow controller can also be used as the first stopper mechanism instead of the first stopper clip 160; a stopper clip or a roller-type flow controller can also be used as the second stopper mechanism instead of the sealing plug 240.

[0051] S30. Turn on the ultraviolet lamp 370 in the disinfection box 330, and start the drainage pump 400 to drive the disinfectant to circulate through the disinfection component 300, the indwelling drainage tube 100 and the external drainage bottle 200 in sequence for sterilization and disinfection. In one or more other embodiments, a drainage pump 400 that can work in both directions can also be set to reversely drive the disinfectant to circulate through the disinfection component 300, the external drainage bottle 200 and the indwelling drainage tube 100 in sequence for sterilization and disinfection.

[0052] S40. After the disinfection is completed, turn off the ultraviolet lamp 370 and the drainage pump 400 in the disinfection box 330, open the first stop clamp 160 on the indwelling drainage tube 100, restore the connection between the delivery section 120 and the drainage section 110 inside the wound, disconnect the first connecting tube 310 of the disinfection assembly 300 and the first external interface 132 on the first connector 130, close the sealing plug 240, and restore the normal drainage state.

[0053] In this embodiment, the postoperative disinfection method utilizes an external disinfection component 300, which connects the indwelling drainage tube 100 and the external drainage bottle 200 respectively through the first connecting port 331 and the second connecting port 332, and cooperates with the driving of the drainage pump 400, so that the disinfectant can circulate inside the disinfection component 300, the indwelling drainage tube 100 and the external drainage bottle 200 for sterilization and disinfection, thereby achieving real-time disinfection and sterilization while the patient wears the drainage tube and the drainage bottle, which can reduce the risk of postoperative infection in the patient and solves the problem in the prior art that bacteria accumulate in the drainage tube and the drainage bottle or the drainage bag for a long time, breed bacteria, and increase the risk of infection of the wound connected to the patient and the drainage tube.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A postoperative drainage disinfection device, characterized in that: Include: An indwelling drainage tube (100), one end of which is used to be inserted into the body; and the indwelling drainage tube (100) is connected to a drainage pump (400); an external drainage bottle (200) connected to the end of the indwelling drainage tube (100) that is not inserted into the body; and A disinfection component (300) is in communication with the middle portion of the indwelling drainage tube (100); and the disinfection component (300) is in communication with the external drainage bottle (200); A first flow-stopping mechanism is provided between the connection point between the indwelling drainage tube (100) and the disinfection assembly (300) and one end of the indwelling drainage tube (100) inserted into the body; a second flow-stopping mechanism is provided between the external drainage bottle (200) and the disinfection assembly (300); when the first flow-stopping mechanism is opened and the second flow-stopping mechanism is closed, the drainage pump (400) can extract body fluids into the external drainage bottle (200) through the indwelling drainage tube (100); when the first flow-stopping mechanism is closed and the second flow-stopping mechanism is opened, the drainage pump (400) can drive liquid to circulate in the disinfection assembly (300), the indwelling drainage tube (100) and the external drainage bottle (200) for sterilization and disinfection.

2. The postoperative drainage disinfection device according to claim 1, characterized in that: The indwelling drainage tube (100) comprises at least a drainage section (110) close to one end inserted into the body, and a delivery section (120) close to one end of the external drainage bottle (200); the drainage section (110) is provided with a suction port.

3. The postoperative drainage disinfection device according to claim 2, characterized in that: The drainage section (110) is connected to a first extension section (114) and a second extension section (115) at one end close to the insertion body, and both the first extension section (114) and the second extension section (115) are provided with a suction port.

4. The postoperative drainage disinfection device according to claim 1, characterized in that: A second connector (140) is provided at the connection point between the indwelling drainage tube (100) and the drainage pump (400), and the second connector (140) has at least two main interfaces respectively connected to the indwelling drainage tube (100) and the drainage pump (400), as well as a second external interface (142) and a third external interface (143).

5. The postoperative drainage disinfection device according to claim 1, characterized in that: The external drainage bottle (200) is provided with a fixing mechanism (250); the fixing mechanism (250) at least has a connecting seat (251), the connecting seat (251) is provided with a slide groove (252), at least two sliding clamps (253) are slidably provided in the slide groove (252), and a spring (256) is provided between the sliding clamps (253) and the inner wall of the slide groove (252).

6. The postoperative drainage disinfection device according to claim 1, characterized in that: The drainage pump (400) is provided with an input interface (401) and an output interface (402); a liquid inlet chamber (412) inside the drainage pump (400) is in communication with the input interface (401), and a plurality of liquid inlet through holes (413) are provided at the bottom of the liquid inlet chamber (412); a liquid outlet chamber (411) inside the drainage pump (400) is in communication with the output interface (402), and a plurality of liquid outlet through holes (414) are provided at the bottom of the liquid outlet chamber (411); and a capsule (440) is provided inside the drainage pump (400), and the capsule (440) ) has a plurality of compression chambers (442), wherein the compression chambers (442) are connected to at least one of the liquid inlet holes (413) and one of the liquid outlet holes (414); and a liquid outlet diaphragm (470) is arranged in the liquid outlet chamber (411); a liquid inlet diaphragm (460) is arranged in the compression chamber (442); a driving mechanism (430) is arranged on the side of the capsule (440) away from the liquid inlet chamber (412) and the liquid outlet chamber (411), and the capsule (440) and the driving mechanism (430) are connected and transmitted via a connecting rod (450).

7. The postoperative drainage disinfection device according to claim 1, characterized in that: The disinfection box (330) of the disinfection assembly (300) is provided with a first communication port (331) and a second communication port (332); an ultraviolet light tube (370) is provided in the internal chamber of the disinfection box (330), and a spiral infusion tube (360) is provided around the outside of the ultraviolet light tube (370).

8. The postoperative drainage disinfection device according to claim 7, characterized in that: The disinfection box (330) is provided with a first flow diverter (340) in communication with the first communication port (331), and a second flow diverter (350) in communication with the second communication port (332); a filter screen plate (380) is detachably provided in the first flow diverter (340) and / or the second flow diverter (350).

9. The postoperative drainage disinfection device according to claim 8, characterized in that: The second communication port (332) is in communication with the middle portion of the indwelling drainage tube (100); the first communication port (331) is in communication with the external drainage bottle (200); and the drainage pump (400) is a bidirectional gear pump.

10. A postoperative disinfection method, characterized in that: Using the postoperative drainage disinfection device according to any one of claims 1 to 9, the postoperative disinfection method comprises the following steps: S10. Injecting liquid into the disinfection assembly (300) or the external drainage bottle (200); S20. closing the first flow-stopping mechanism on the indwelling drainage tube (100), connecting the disinfection assembly (300) and the indwelling drainage tube (100), and opening the second flow-stopping mechanism, connecting the external drainage bottle (200) and the disinfection assembly (300); S30. Open the disinfection component (300) and start the drainage pump (400) to drive the liquid to circulate through the disinfection component (300), the indwelling drainage tube (100) and the external drainage bottle (200) to perform sterilization and disinfection.

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