Flushing device used in osteomyelitis operation and flushing method thereof

Abstract

The invention relates to the technical field of medical instruments, in particular to a flushing device used in osteomyelitis operation and a flushing method thereof.The device comprises a bearing box body, the bottom of one side of the bearing box body communicates with a liquid outlet pipe, the side wall of the bearing box body communicates with a suction pipe and a negative pressure assembly, and a liquid storage assembly is arranged at the top of the bearing box body and communicates with a flushing pipe; the flushing pipe is fixedly communicated with a flushing head, the suction pipe is fixedly communicated with a suction head, the suction head wraps the outer side of the flushing head, the flushing head is fixedly connected with the suction head, a plurality of suction holes are formed in the side wall of the suction head in the circumferential direction, flushing holes are formed in the flushing head, a plurality of anti-blocking holes are formed in the side wall of the flushing head, and one-way liquid valves are fixedly connected into the anti-blocking holes. The method comprises the steps that S1, the negative pressure flushing intensity is selected, S2, flushing and sucking are conducted, and S3, balance is adjusted, flushing and sucking are integrated, the structure is designed, flushing fluid sprayed out through flushing is used for dredging a sucking channel which is prone to being blocked, and the operation efficiency, safety and the patient rehabilitation speed are improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a flushing device and a flushing method used during osteomyelitis surgery. Background Art

[0002] The treatment principle of osteomyelitis is to control the development and reproduction of pathogens, completely remove the lesions, and carry out anti-infection treatment. Treatment methods include non-surgical treatment and surgical treatment. Surgical treatment is for patients with chronic osteomyelitis or severe conditions. The surgical methods include lesion removal, dead bone removal and antibiotic bone cement filling. Long-term anti-infection treatment is also required after surgery.

[0003] During surgery, strict cleaning is usually required to clean infected dead bones, inflammatory granulation tissue and pus to prevent the spread and recurrence of infection. This requires the use of a flushing device to flush and clean pus and necrotic flesh. Conventional flushing devices generally include a bearing box for carrying a drive pump and several transport pipes for transporting waste liquid and cleaning liquid to achieve flushing and cleaning of the patient's wound and recycling of waste liquid.

[0004] The suction and recovery function of conventional flushing devices is achieved by opening a suction hole on a suction tube with a negative pressure drive. Since wastes such as pus, necrotic flesh and inflammatory granulation tissue are viscous and contain a lot of fiber, they are easy to accumulate and cause blockage when passing through the suction hole, which not only affects the flushing efficiency, but also may increase the risk of surgery and the pain of the patient. In order to solve this problem, it is necessary to propose a flushing device and flushing method for intraoperative osteomyelitis, which is optimized in structural design and function to effectively prevent blockage during the suction process and improve flushing efficiency. Summary of the invention

[0005] To solve the above problems, the present invention provides a flushing device and flushing method for use during osteomyelitis surgery, which integrates flushing and suction and designs a structure to use the flushing liquid sprayed by flushing to clear the easily blocked suction channel, thereby improving the efficiency, safety of the operation and the speed of patient recovery.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a flushing device for intraoperative osteomyelitis, comprising a carrying box, a bottom of one side of the carrying box is connected to a liquid outlet pipe, a side wall of the carrying box is connected to a suction pipe and a negative pressure component for providing a negative pressure force, a liquid storage component for pumping flushing liquid is fixedly connected to the top of the carrying box, the liquid storage component is connected to a flushing pipe, one end of the flushing pipe away from the liquid storage component passes through the side wall of the carrying box and extends to the outside of the carrying box and is fixedly connected to a hollow flushing head, and a side of the suction pipe away from the carrying box is fixedly connected to a hollow suction head;

[0007] The diameter of the suction tube is larger than the diameter of the flushing tube. The suction tube is connected with the flushing tube body and after the connection, the suction tube is wrapped around the outside of the flushing tube. The volume of the suction head is larger than the volume of the flushing head. The suction head is wrapped around the outside of the flushing head. The flushing head is fixedly connected to the end of the suction head away from the suction tube, and a gap is provided between the outer wall of the flushing head and the inner wall of the suction head. A plurality of suction holes are circumferentially provided on the side wall of the suction head. A flushing hole is provided on the end of the flushing head away from the flushing tube. A plurality of anti-blocking holes corresponding to the positions of the suction holes are provided on the side wall of the flushing head, and a one-way liquid valve is fixedly connected in each of the anti-blocking holes.

[0008] The technical principle of the above scheme is as follows: the liquid storage component is driven to pump the flushing liquid out of the liquid storage component, and the flushing liquid flows to the flushing head through the flushing tube, and finally is sprayed out at a certain pressure and flow rate at the flushing hole to flush the tissue at the wound. The negative pressure component starts to work and generates a negative pressure force. The diameter of the suction tube is larger than the design of the flushing tube, and the suction tube is wrapped around the outside of the flushing tube, forming an annular channel that communicates inside and outside. Under the action of negative pressure, the waste liquid and tissue fragments after flushing are sucked into the suction tube through the suction hole opened on the side wall of the suction head. Finally, the waste liquid then flows into the carrying box through the suction tube, and finally is discharged from the system through the liquid outlet pipe. During the flushing process, if the suction hole is blocked by tissue fragments or other substances, the anti-blocking hole opened on the side wall of the flushing head will play a role. The one-way liquid valve fixedly connected in the anti-blocking hole allows the flushing liquid to flow from the inside of the flushing head to the outside, but prevents the waste liquid and fragments from flowing in reverse. When the flushing liquid is sprayed out through the anti-blocking hole, its impact force can flush through the foreign matter blocking the suction hole, thereby keeping the suction hole unobstructed.

[0009] The above scheme has the following beneficial effects:

[0010] 1. In this solution, the design of the flushing head and the suction head ensures that the flushing liquid can accurately act on the wound area, and at the same time, the waste liquid and tissue fragments can be quickly and thoroughly absorbed, which not only shortens the operation time, but also significantly improves the cleanliness and quality of flushing, providing a clearer and cleaner field of view for subsequent surgical treatment.

[0011] 2. In this solution, the specially designed anti-blocking holes and one-way liquid valves constitute an innovative anti-blocking mechanism, which can promptly flush out foreign matter that may block the suction hole during the flushing process, thereby avoiding the problem of poor flushing or interruption caused by blockage. This not only improves the stability of the operation, but also reduces the surgical risks that may be caused by equipment failure.

[0012] 3. This solution, by providing an efficient and safe flushing solution, helps to shorten the patient's operation time and reduce the occurrence of postoperative complications, thereby accelerating the patient's recovery process. This not only improves the patient's quality of life, but also reduces the burden on medical institutions, bringing tangible benefits to both doctors and patients.

[0013] Furthermore, a piston plate for dividing the bearing box into two closed chambers is slidably connected in the bearing box, and the piston plate divides the bearing box into a piston chamber and a negative pressure chamber.

[0014] Beneficial effects: Through the sliding connection of the piston plate in the carrying box, the device can flexibly divide the carrying box into two closed chambers, the piston chamber and the negative pressure chamber. This design not only ensures the stable storage and pumping of the flushing liquid in the piston chamber, but also ensures the effective sealing and negative pressure generation of the negative pressure chamber when absorbing waste liquid. Therefore, the flushing liquid can act on the wound area more accurately and evenly, and the waste liquid can be absorbed more quickly and thoroughly, thereby significantly improving the flushing efficiency and quality. In addition, the design of the piston plate enables the negative pressure chamber to form a relatively independent closed space, which helps to maintain the stability and continuity of the negative pressure when the negative pressure component is working. The stable negative pressure environment can more effectively absorb waste liquid and tissue fragments, reducing the problem of poor absorption or interruption caused by negative pressure fluctuations. At the same time, the sealing of the negative pressure chamber also avoids interference from external air or liquid, further improving the absorption effect.

[0015] Furthermore, a plurality of springs are fixedly connected to a side of the piston plate close to the piston cavity, and a side of the springs away from the piston plate are fixedly connected to an inner side wall of the piston cavity.

[0016] Beneficial effects:

[0017] Several springs fixedly connected to the piston plate near the piston chamber provide a stable reset mechanism for the piston plate. When the negative pressure force in the negative pressure chamber or the pressure of the flushing liquid changes, the spring can automatically adjust the position of the piston plate to ensure that the piston chamber and the negative pressure chamber are always effectively separated, which not only enhances the stability and reliability of the device, but also avoids the misalignment or leakage of the piston plate caused by pressure fluctuations. In addition, the design of the spring also plays a role in buffering pressure changes. During the process of flushing liquid pumping or negative pressure absorption, large pressure fluctuations may occur inside the equipment. The spring can absorb these fluctuations, reduce the impact and wear on the piston plate, the bearing box and other components, extend the service life of the equipment, and improve the overall performance and durability of the equipment.

[0018] Furthermore, the liquid storage assembly includes a liquid storage box body, the top of which is connected to a first water pump for providing force to pump the flushing liquid, a plurality of liquid holes are provided at the bottom of the liquid storage box body, the flushing pipe is embedded in the piston plate, and one end of the flushing pipe away from the flushing head is fixedly connected to the top of the piston plate and the movement trajectory of the flushing pipe covers all the liquid holes.

[0019] Beneficial effects: The liquid storage box in the liquid storage assembly works in coordination with the first water pump to provide flushing liquid stably and efficiently. The first water pump, through its pumping force, transports the flushing liquid in the liquid storage box to the flushing head through the flushing pipe, thereby ensuring the continuous supply of flushing liquid during the operation. In addition, by opening a plurality of liquid holes at the bottom of the liquid storage box and designing the movement trajectory of the flushing pipe to cover these liquid holes, the device can more effectively utilize the flushing liquid in the liquid storage box. When the piston plate moves, the flushing pipe can pass through each liquid hole in turn, thereby ensuring that the flushing liquid in the liquid storage box can be evenly and fully utilized. This design not only improves the utilization rate of the flushing liquid, but also reduces the waste of the flushing liquid and reduces the cost of surgery.

[0020] Furthermore, the diameters of the plurality of liquid holes increase in sequence in a direction away from the piston cavity, and the diameter of the connection point between the flushing pipe and the top of the piston plate is larger than the diameter of the liquid hole with the largest diameter.

[0021] Beneficial effects: The design of the gradually increasing diameter of the liquid holes can also reduce the waste of the flushing liquid. During the flushing process, the flushing liquid will pass through the liquid holes of different diameters in turn, forming a gradually slowing flow rate and a relatively increased flow rate, so that the flushing liquid can be more fully utilized, avoiding the splashing or loss of the flushing liquid caused by too fast a flow rate. Therefore, this design not only improves the utilization rate of the flushing liquid, but also reduces the cost of surgery and realizes the control of the flushing intensity.

[0022] Furthermore, an infrared sensor is fixedly connected to the inner wall of the piston cavity away from the piston plate, and the infrared sensor signal is connected to the controller. The inner walls of the liquid holes are fixedly connected to electromagnetic valves, and the electromagnetic valves are connected to the controller signal.

[0023] Beneficial effects: The inner walls of several liquid holes opened at the bottom of the liquid storage box are fixedly connected to the solenoid valves, which provide a precise means for controlling the flow rate of the flushing liquid. Through the signal command of the controller, the solenoid valve can be opened or closed in real time, thereby realizing precise adjustment of the flow rate of the flushing liquid, which not only ensures the stable supply of the flushing liquid during the operation, but also allows the doctor to flexibly adjust the flow rate and flow rate of the flushing liquid according to the needs of the operation to achieve the best flushing effect. In addition, through the precise control of the solenoid valve and the intelligent sensing of the infrared sensor, the design can ensure that the flushing liquid is released only when needed, thereby avoiding the waste of the flushing liquid, which not only improves the utilization rate of the flushing liquid, but also reduces the cost of surgery, bringing more economic benefits to medical institutions and patients.

[0024] Furthermore, a plurality of limit grooves corresponding to the positions of the liquid holes are formed on the outer bottom wall of the liquid storage box body, a limit plate is hinged in the limit groove, and a torsion spring is provided at the hinge between the limit plate and the limit groove.

[0025] Beneficial effect: When the piston plate moves in the piston chamber, its bottom can contact the limit plate, thereby limiting excessive movement or shaking of the piston plate. When the piston plate contacts the limit plate, a relatively sealed contact surface can be formed between them, which helps prevent the flushing liquid from leaking out of the gap between the piston plate and the liquid storage box.

[0026] Furthermore, the negative pressure chamber is connected to the liquid outlet pipe, the other end of the liquid outlet pipe away from the negative pressure chamber is connected to the negative pressure component, the negative pressure component is fixedly connected to the side wall of the negative pressure chamber, the negative pressure component includes a second water pump for providing negative pressure suction force, and the second water pump is connected to the controller signal.

[0027] Beneficial effects: The connection design between the negative pressure chamber and the liquid outlet pipe, as well as the introduction of the negative pressure component, provide an efficient and reliable means for removing the flushing fluid and contaminants during the flushing process. When the flushing fluid completes the flushing task, the second water pump is started under the command of the controller to generate a negative pressure suction force, and the flushing fluid in the negative pressure chamber and the flushed contaminants are sucked away through the liquid outlet pipe, which not only ensures the cleanliness of the surgical area, but also avoids the retention of flushing fluid in the wound, reducing the risk of postoperative infection. In addition, through the coordinated work of the negative pressure chamber and the negative pressure component, an integrated process of flushing and absorption is realized. During the flushing process, the flushing fluid flows out through the liquid hole and acts on the wound area; and after the flushing is completed, the negative pressure component is immediately started to quickly absorb the flushing fluid and contaminants. This seamless flushing and absorption process not only improves the surgical efficiency, but also ensures the continuous cleanliness of the surgical area.

[0028] Furthermore, a touch screen for the user to select the negative pressure suction gear is fixedly connected to the top of the liquid storage box, and the touch screen is connected to the controller signal.

[0029] Beneficial effects: The touch screen design fixedly connected to the top of the liquid storage tank provides users with an intuitive and easy-to-use operation interface. Through the touch screen, users can easily select the desired negative pressure suction gear without tedious manual adjustment or complicated setting steps. This design not only simplifies the operation process, but also improves the user's convenience and satisfaction.

[0030] A method for flushing a flushing device during osteomyelitis surgery, based on flushing with the flushing device during osteomyelitis surgery, comprises the following steps:

[0031] S1, select the negative pressure flushing intensity: the operator places the suction head and the flushing head on the patient's wound, and selects the gear of negative pressure suction by touching the touch screen according to the condition of the wound;

[0032] S2, flushing and suction: the flushing liquid is flushed out through the flushing hole, and the operator manually controls the direction of the flushing head and the suction head to flush the tissue to be flushed. At the same time, the waste liquid after flushing will be sucked into the gap through the suction hole under the negative pressure generated by the second water pump, and collected through the suction tube and the negative pressure chamber. In addition, during the flushing process, part of the flushing liquid will be sprayed out through the anti-blocking hole to flush out the foreign matter blocking the suction hole;

[0033] S3, balance adjustment: during the flushing process, the operator observes the flushing situation and adjusts the gear of negative pressure absorption. When the touch gear is raised, the controller receives the signal from the touch screen and sends a signal to enhance the power of the second water pump, thereby enhancing the negative pressure force generated by the second water pump and the negative pressure in the negative pressure chamber. Under the action of air pressure, the piston plate moves away from the piston chamber toward the negative pressure chamber, so that the water inlet end of the flushing pipe is aligned with the liquid hole with a larger diameter, thereby increasing the flow area of ​​the flushing liquid and increasing the flow rate of the flushing liquid. At the same time, the stronger negative pressure balances the amount of flushing and collected waste liquid. When the touch gear is lowered, the piston plate moves in the opposite direction, the negative pressure is reduced, the flushing pipe is aligned with the liquid hole with a smaller diameter, thereby reducing the flow area of ​​the flushing liquid and reducing the flow rate of the flushing liquid, thereby achieving adjustment of the flushing intensity.

[0034] Beneficial effects: The overall design of the flushing method takes into account the actual needs of doctors, improves the convenience of operation and the actual experience of doctors. In addition, the flushing method is highly intelligent and automated, which helps shorten the operation time and improve the efficiency of the operation. Accurate flushing and waste fluid collection help reduce the risk of complications during the operation. The reduction in the difficulty of operation allows doctors to focus more on the operation or the accuracy of flushing, thereby improving the safety of the operation.

[0035] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of a flushing device according to an embodiment of a flushing device and a flushing method for use in osteomyelitis surgery of the present invention;

[0037] Figure 2 It is a front cross-sectional view of a flushing head and a suction head of an embodiment of a flushing device and a flushing method for intraoperative osteomyelitis of the present invention;

[0038] Figure 3 It is a front cross-sectional view of a carrying box of an embodiment of a flushing device and a flushing method for intraoperative osteomyelitis of the present invention;

[0039] Figure 4 The present invention is a schematic flow chart of a flushing method according to an embodiment of a flushing device and a flushing method for use during osteomyelitis surgery.

[0040] The figure marks in the drawings of the specification include: 1. supporting box; 101. piston chamber; 102. negative pressure chamber; 2. liquid outlet pipe; 3. flushing pipe; 4. flushing head; 5. suction pipe; 6. suction head; 7. gap; 8. suction hole; 9. flushing hole; 10. anti-blocking hole; 11. one-way liquid valve; 12. piston plate; 13. spring; 14. first water pump; 15. liquid hole; 16. solenoid valve; 17. infrared sensor; 18. limit groove; 19. limit plate; 20. second water pump; 21. touch screen. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The following is further described in detail through specific implementation methods:

[0045] Embodiment 1:

[0046] As attached Figure 1 , Figure 2 and Figure 3As shown: a flushing device for intraoperative osteomyelitis, including a carrying box 1, a liquid outlet pipe 2 is connected to the bottom of one side of the carrying box 1, and a piston plate 12 is slidably connected to the carrying box 1 through a slider groove, which is used to separate the carrying box 1 into two closed chambers. The piston plate 12 separates the carrying box 1 into a piston chamber 101 and a negative pressure chamber 102. The design of the piston plate 12 allows the existence of the negative pressure chamber 102 to form a negative pressure environment, which helps to attract and discharge the waste liquid after flushing, and further improve the efficiency of collecting waste liquid. The closed chamber enables the negative pressure to move the position of the piston plate 12, which is beneficial to the subsequent selection of the most suitable flushing pressure according to the specific situation and surgical requirements to achieve the best flushing effect. A plurality of springs 13 are welded to the side of the piston plate 12 close to the piston chamber 101, and the side of the springs 13 away from the piston plate 12 is welded to the inner wall of the piston chamber 101. The plurality of springs 13 enable the piston plate 12 to move toward the negative pressure chamber 102 when negative pressure exists in the negative pressure chamber 102, and slowly return to the initial position close to the piston chamber 101 after the negative pressure chamber 102 loses the negative pressure. The elastic deformation of the plurality of springs 13 allows the position of the piston plate 12 to be dynamically controlled according to the size of the negative pressure absorption function. This dynamic adjustment can ensure that the flushing and absorption process can continuously and evenly act on the osteomyelitis lesion, thereby improving the stability of the device. The liquid outlet pipe 2 is connected to the negative pressure chamber 102. The end of the liquid outlet pipe 2 away from the negative pressure chamber 102 is connected to a negative pressure component for providing negative pressure force. The negative pressure component includes a second water pump 20. The negative pressure force provided by the second water pump 20 can more effectively extract the waste liquid in the negative pressure chamber 102, thereby avoiding the waste liquid from being retained in the device, ensuring the smooth progress of the flushing process, and allowing the flushing device to continue to maintain a clean state, thereby improving the flushing efficiency and ensuring the flushing effect during the operation. The second water pump 20 signal is connected to a controller to achieve precise control of the negative pressure force. The doctor can adjust the size of the negative pressure through the controller according to the surgical needs to meet the requirements of different flushing stages.

[0047] The diameters of the plurality of liquid holes 15 increase in sequence in a direction away from the piston chamber 101. When the flushing liquid flows out from the bottom of the liquid storage box, it passes through the liquid holes 15 of different diameters. Due to the principle of fluid mechanics, when the liquid flows through a hole with a larger diameter, under the same pumping driving force, the increase in the flow area allows more flushing liquid to pass through, and the diameter of the connection between the flushing tube 3 and the top of the piston plate 12 is larger than the diameter of the liquid hole with the largest diameter, so that the flushing tube 3 can accommodate the flushing liquid passing through the liquid holes 15 of all diameters. The flushing tube 3 is aligned with the liquid holes 15 of different diameters to control the flow rate and speed of the flushing liquid. In addition, the displacement of the flushing tube 3 following the movement of the piston plate 12 causes the intensity of the negative pressure suction to be related to the flow rate and flushing intensity of the flushing liquid, and the diameter of the liquid hole 15 is adjusted. The distribution can adapt to the flushing requirements of different surgical sites and lesion types. For example, for larger lesions or surgeries that require stronger flushing force, the power of the second water pump 20 is increased, and the piston plate 12 is moved toward the negative pressure chamber 102, so that the larger diameter of the liquid hole 15 is aligned with the flushing tube 3, thereby increasing the flow rate of the flushing liquid and increasing the suction efficiency. In addition, on the one hand, the design that can be gradually increased in the direction away from the piston chamber 101 can balance the suction and flushing processes, avoid the situation where the flushing volume increases but the suction cannot be completed, and improve the stability of the flushing process. On the other hand, the flushing intensity can be adjusted by adjusting the negative pressure action power of the second water pump 20, which is convenient and quick, reduces the response time of the control system, and replaces the transmission of system signals with mechanical movement to improve the practicality of the device.

[0048] A liquid storage component for pumping flushing liquid is welded on the top of the supporting box 1, and the liquid storage component is connected to a flushing pipe 3. The liquid storage component includes a liquid storage box, and the top of the liquid storage box is connected to a first water pump 14 for providing a force for pumping flushing liquid. The first water pump 14 provides a stable flushing liquid pumping force for the liquid storage box to ensure that the flushing process can continue without being interrupted due to insufficient flushing liquid. A plurality of liquid holes 15 are opened at the bottom of the liquid storage box, and the flushing pipe 3 is embedded in the piston plate 12. The end of the flushing pipe 3 away from the flushing head 4 is fixedly connected to the top of the piston plate 12, and the movement trajectory of the flushing pipe 3 covers all the liquid holes 15. The flushing liquid enters the flushing pipe 3 through the liquid holes 15. The pumping force generated by the first water pump 14 causes the flushing liquid to be pumped out for flushing. The design of the liquid holes 15 enables the flushing liquid to be evenly distributed and flow into the piston cavity 101, ensuring that the flushing liquid can fully cover and act on the lesion site.

[0049] One end of the flushing tube 3 away from the liquid storage box body passes through the side wall of the carrying box body 1 and extends to the outside of the carrying box body 1 and is fixedly connected with a hollow flushing head 4. The suction tube 5 is fixedly connected with a hollow suction head 6 away from the side of the carrying box body 1. The diameter of the suction tube 5 is larger than the diameter of the flushing tube 3. The suction tube 5 is connected with the flushing tube 3 and after the connection, the suction tube 5 is wrapped around the outside of the flushing tube 3. The volume of the suction head 6 is larger than the volume of the flushing head 4. The flushing head 4 is wrapped around the outside of the suction head 6. The flushing head 4 is away from the flushing tube 3. One end is fixedly connected with the end of the suction head 6 away from the suction tube 5, and a gap 7 is provided between the outer wall of the flushing head 4 and the inner wall of the suction head 6, a plurality of suction holes 8 are circumferentially provided on the side wall of the suction head 6, a flushing hole 9 is provided on the end of the flushing head 4 away from the flushing tube 3, and a plurality of anti-blocking holes 10 corresponding to the positions of the suction holes 8 are provided on the side wall of the flushing head 4, and a one-way liquid valve 11 is fixedly connected in each of the anti-blocking holes 10, and the one-way liquid valve 11 allows the flushing liquid to flow from the flushing head 4 to the suction head 6, thereby reducing the risk of waste liquid entering the flushing head 4 and contaminating the flushing. The probability of washing liquid is improved, the cleanliness of the washing process is improved, and the safety of the patient is ensured. The washing liquid is pumped by the first water pump 14, enters the liquid storage box, and flows into the washing pipe 3 through the liquid hole 15. The washing pipe 3 transports the washing liquid from the top of the piston plate 12 to the washing head 4 at one end away from the liquid storage box. The washing head 4 sprays the washing liquid to the lesion site with a certain pressure and flow rate through the washing hole 9 opened therein for cleaning. While washing, the suction pipe 5 uses the suction head 6 at one side away from the carrying box 1 to absorb the waste liquid, pus, tissue fragments, etc. from the lesion site through the negative pressure pumping action of the second water pump 20. The waste liquid is sucked into the gap 7 through the suction hole 8, and then transported through the space between the suction pipe 5 and the washing pipe 3. The combined design of the washing head 4 and the suction head 6 realizes the simultaneous washing and suction, improves the surgical efficiency, and the washing liquid can be accurately sprayed to the lesion site, while the suction head 6 can quickly absorb the waste liquid, etc., to ensure the cleanliness of the surgical area. In addition. The design of the anti-blocking hole 10 allows part of the flushing liquid to be flushed out through the anti-blocking hole 10 during the process of the flushing head 4 spraying the flushing liquid. The design of the position facing the suction hole 8 enables the flushing liquid sprayed from the anti-blocking hole 10 to have a dredging effect on the suction hole 8 that may be blocked, which is beneficial to reduce the blockage of the suction hole 8 due to excessive blood clot waste liquid, improve the smoothness of the flushing process, and improve the efficiency of the operation.

[0050] Embodiment 2:

[0051] As attached Figure 3As shown, the difference from Example 1 is that the inner wall of the liquid hole 15 is fixedly connected with a solenoid valve 16, and the signal of the solenoid valve 16 is connected to the controller. The inner wall of the piston chamber 101 away from the piston plate 12 is fixedly connected with an infrared sensor 17, and the infrared sensor 17 is connected to the controller signal. The infrared sensor 17 can monitor the position or movement state of the piston plate 12 in real time and feed back the signal to the controller. The controller can determine whether the piston plate 12 has reached the specified position based on these signals, so as to signal to open the solenoid valve 16 at the corresponding position. In this way, the flushing strategy can be adjusted in time according to the actual situation, the flushing efficiency can be improved, the probability of the flushing liquid directly falling into the negative pressure chamber 102 for recovery can be reduced, and the flushing efficiency can be improved.

[0052] Embodiment 3:

[0053] As attached Figure 3 As shown, the difference from Example 2 is that a plurality of limit grooves 18 corresponding to the positions of the liquid holes 15 are opened on the outer bottom wall of the liquid storage box body, and a limit plate 19 is hingedly connected in the limit groove 18. The design of the limit plate 19 and the limit groove 18 provides an additional support and limit mechanism for the piston plate 12. When the piston plate 12 moves in the piston chamber 101, its bottom can contact the limit plate 19, thereby limiting excessive movement or shaking of the piston plate 12. When the piston plate 12 contacts the limit plate 19, a relatively sealed contact surface can be formed between them, which helps to prevent the flushing liquid from leaking out of the gap 7 between the piston plate 12 and the liquid storage box. A torsion spring is provided at the hinge of the limit plate 19 and the limit groove 18. On the one hand, the elastic force of the torsion spring can ensure that the limit plate 19 fits tightly to the corresponding position of the piston plate 12 or the liquid storage box, further enhancing the sealing effect. On the other hand, the torsion spring can set a negative pressure threshold for the movement of the piston plate 12, so that the power of the second water pump 20 makes the negative pressure reach a specific size before the piston plate 12 can move to the next limit plate 19 through the limit of the limit plate 19, thereby improving the synchronization of the suction and flushing processes and reducing the loss during the movement.

[0054] Embodiment 4:

[0055] As attached Figure 3 As shown, the difference from Example 3 is that a touch screen 21 for the user to select the negative pressure suction gear is fixedly connected to the top of the liquid storage box, and the touch screen 21 is connected to the controller signal. The touch screen 21 provides an intuitive and simple operation method. The user can select the desired negative pressure suction gear with a light touch. Through the touch screen 21, the user can easily switch between different negative pressure suction gears to adapt to different flushing needs. This design makes the system more flexible, able to cope with a variety of complex flushing scenarios, and reduces the difficulty of using the device.

[0056] Embodiment 5:

[0057] As attached Figure 4 As shown, the flushing method for using a flushing device during osteomyelitis surgery is based on flushing using a flushing device during osteomyelitis surgery described in Examples 1-4, and includes the following steps:

[0058] S1, select the negative pressure flushing intensity: the operator places the suction head 6 and the flushing head 4 on the patient's wound, and selects the gear of negative pressure suction by touching the touch screen 21 according to the condition of the wound;

[0059] S2, flushing and absorption: the flushing liquid is flushed out through the flushing hole 9, and the operator manually controls the direction of the flushing head 4 and the absorption head 6 to flush the tissue to be flushed. At the same time, the waste liquid after flushing will be sucked into the gap 7 through the absorption hole 8 under the negative pressure generated by the second water pump 20, and collected through the absorption tube 5 and the negative pressure chamber 102. In addition, during the flushing process, part of the flushing liquid will be sprayed out through the anti-blocking hole 10 to flush out the foreign matter blocking the absorption hole 8;

[0060] S3, balance adjustment: during the flushing process, the operator observes the flushing situation and adjusts the gear of negative pressure absorption. When the touch gear is raised, the controller receives the signal of the touch screen 21 and sends a signal to enhance the power of the second water pump 20, so that the negative pressure force generated by the second water pump 20 is enhanced, and the negative pressure of the negative pressure chamber 102 is enhanced. Under the action of air pressure, the piston plate 12 moves away from the piston chamber 101 toward the negative pressure chamber 102, so that the water inlet end of the flushing tube 3 is aligned with the liquid hole 15 with a larger diameter, thereby increasing the flow area of ​​the flushing liquid and increasing the flow rate of the flushing liquid. At the same time, the stronger negative pressure effect balances the amount of flushing and collected waste liquid. When the touch gear is lowered, the piston plate 12 moves in the opposite direction, the negative pressure effect is reduced, and the flushing tube 3 is aligned with the liquid hole 15 with a smaller diameter, thereby reducing the flow area of ​​the flushing liquid and reducing the flow rate of the flushing liquid, thereby realizing the adjustment of the flushing intensity.

[0061] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A flushing device for osteomyelitis surgery, comprising a carrying box (1), a bottom of one side of the carrying box (1) being connected to a liquid outlet pipe (2), characterized in that: The side wall of the carrying box (1) is connected to a suction pipe (5) and a negative pressure component for providing a negative pressure force; the top of the carrying box (1) is fixedly connected to a liquid storage component for pumping a flushing liquid; the liquid storage component is connected to a flushing pipe (3); the flushing pipe (3) has one end away from the liquid storage component, passes through the side wall of the carrying box (1), extends to the outside of the carrying box (1) and is fixedly connected to a hollow flushing head (4); the suction pipe (5) has one side away from the carrying box (1) and is fixedly connected to a hollow suction head (6); The diameter of the suction tube (5) is greater than the diameter of the flushing tube (3); the suction tube (5) and the flushing tube (3) are connected and after the connection, the suction tube (5) is wrapped around the outside of the flushing tube (3); the volume of the suction head (6) is greater than the volume of the flushing head (4); the suction head (6) is wrapped around the outside of the suction flushing head (4); the end of the flushing head (4) away from the flushing tube (3) is fixedly connected to the end of the suction head (6) away from the suction tube (5); a gap (7) is provided between the outer wall of the flushing head (4) and the inner wall of the suction head (6); a plurality of suction holes (8) are provided in the circumferential direction of the side wall of the suction head (6); a flushing hole (9) is provided at the end of the flushing head (4) away from the flushing tube (3); a plurality of anti-blocking holes (10) corresponding to the positions of the suction holes (8) are provided on the side wall of the flushing head (4); and a one-way liquid valve (11) is fixedly connected in each of the anti-blocking holes (10).

2. The intraoperative flushing device for osteomyelitis according to claim 1, characterized in that: A piston plate (12) is slidably connected inside the bearing box (1) and is used to separate the bearing box (1) into two closed chambers. The piston plate (12) separates the bearing box (1) into a piston chamber (101) and a negative pressure chamber (102).

3. The intraoperative flushing device and flushing method for osteomyelitis according to claim 2, characterized in that: A plurality of springs (13) are fixedly connected to the side of the piston plate (12) close to the piston chamber (101), and the sides of the springs (13) away from the piston plate (12) are fixedly connected to the inner wall of the piston chamber (101).

4. The intraoperative flushing device for osteomyelitis according to claim 3, characterized in that: The liquid storage assembly comprises a liquid storage box, the top of which is connected to a first water pump (14) for providing a pumping force for flushing liquid, a plurality of liquid holes (15) are provided at the bottom of the liquid storage box, a flushing pipe (3) is embedded in a piston plate (12), one end of the flushing pipe (3) away from the flushing head (4) is fixedly connected to the top of the piston plate (12), and the movement trajectory of the flushing pipe (3) covers all the liquid holes (15).

5. The intraoperative flushing device for osteomyelitis according to claim 4, characterized in that: The diameters of the plurality of liquid holes (15) increase in sequence in a direction away from the piston chamber (101), and the diameter of the connection point between the flushing pipe (3) and the top of the piston plate (12) is greater than the diameter of the liquid hole (15) with the largest diameter.

6. The intraoperative flushing device for osteomyelitis according to claim 5, characterized in that: An infrared sensor (17) is fixedly connected to the inner wall of the piston chamber (101) away from the piston plate (12), and the infrared sensor (17) is signal-connected to a controller. An electromagnetic valve (16) is fixedly connected to the inner wall of the liquid passage hole (15), and the electromagnetic valve (16) is signal-connected to the controller.

7. The intraoperative flushing device for osteomyelitis according to claim 6, characterized in that: A plurality of limit grooves (18) corresponding to the positions of the liquid holes (15) are provided on the bottom wall of the liquid storage box body, a limit plate (19) is hingedly connected in the limit groove (18), and a torsion spring is provided at the hinge between the limit plate (19) and the limit groove (18).

8. The intraoperative flushing device for osteomyelitis according to claim 7, characterized in that: The negative pressure chamber (102) is connected to the liquid outlet pipe (2), and the other end of the liquid outlet pipe (2) away from the negative pressure chamber (102) is connected to the negative pressure component. The negative pressure component is fixedly connected to the side wall of the negative pressure chamber (102). The negative pressure component includes a second water pump (20) for providing negative pressure suction force, and the second water pump (20) is connected to the controller signal.

9. The intraoperative flushing device for osteomyelitis according to claim 8, characterized in that: A touch screen (21) for users to select a negative pressure suction gear is fixedly connected to the top of the liquid storage box, and the touch screen (21) is connected to the controller signal.

10. A method for flushing a flushing device during osteomyelitis surgery, based on the flushing device during osteomyelitis surgery according to claims 1-9, characterized in that: The following steps are involved: S1, selecting the intensity of negative pressure flushing: the operator places the suction head (6) and the flushing head (4) on the patient's wound, and selects the gear of negative pressure suction by touching the touch screen (21) according to the condition of the wound; S2, flushing and suction: the flushing liquid is flushed out through the flushing hole (9), and the operator manually controls the direction of the flushing head (4) and the suction head (6) to flush the tissue to be flushed. At the same time, the waste liquid after flushing will be sucked into the gap (7) through the suction hole (8) under the action of the negative pressure generated by the second water pump (20), and collected through the suction tube (5) and the negative pressure chamber (102). In addition, during the flushing process, part of the flushing liquid will be sprayed out through the anti-blocking hole (10) to flush out foreign matter blocking the suction hole (8); S3, balance adjustment: During the flushing process, the operator observes the flushing situation and adjusts the gear of the negative pressure absorption. When the touch gear is raised, the controller receives the signal of the touch screen (21) and sends a signal to increase the power of the second water pump (20), so that the negative pressure force generated by the second water pump (20) is increased, and the negative pressure of the negative pressure chamber (102) is increased. Under the action of air pressure, the piston plate (12) moves away from the piston chamber (101) toward the negative pressure chamber (102), so that the water inlet end of the flushing pipe (3) is aligned with the larger diameter liquid hole (15), increasing the flow area of ​​the flushing liquid and increasing the flow rate of the flushing liquid. At the same time, the stronger negative pressure effect makes the amount of flushing and collection of waste liquid reach a balance. When the touch gear is lowered, the piston plate (12) moves in the opposite direction, the negative pressure effect is reduced, and the flushing pipe (3) is aligned with the smaller diameter liquid hole (15), reducing the flow area of ​​the flushing liquid and reducing the flow rate of the flushing liquid, thereby achieving the adjustment of the flushing intensity.

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