Visual universal bone lesion grinding device

Abstract

The invention discloses a visual universal bone lesion grinding device which comprises a handle, an insertion tube, a grinding unit and two sleeves, a whole lesion cavity and the whole grinding process are observed in real time and in all directions by integrating a panoramic camera consistent with the grinding main direction of a grinding drill at the end of the insertion tube, the traditional operation mode of blind vision or local view is changed, and the operation efficiency is improved. A doctor can clearly see lesion boundaries and grinding depth, thoroughness of lesion removal and operation safety are greatly improved, the two sleeves and a bone cavity form a closed water injection operation environment, grinding conditions are created, one sleeve is a water injection port, the other sleeve is a water drainage port, the two sleeves form a circulation channel, and therefore the grinding effect is improved. Chippings generated by polishing are discharged through flushing, the lens is prevented from being sealed or covered by the chippings in blood or flushing fluid, and the feasibility of the whole operation process is ensured through visualization.

Description

Technical Field

[0001] This invention relates to the field of bone tumors, and in particular to a visual, universal bone lesion grinding device. Background Technology

[0002] In the field of bone tumors, some benign bone tumors (such as giant cell tumor of bone and chondroblastoma) often require further grinding of the bone surrounding the lesion after curettage.

[0003] Due to the limited area of ​​the lesion bone opening, the bone on the inner wall of the lesion often cannot be polished due to insufficient light or being in a blind spot. Doctors cannot directly observe the full appearance of the lesion, the boundary of polishing, and the real-time progress. They mainly rely on preoperative imaging and intraoperative touch, which can easily lead to incomplete removal of the lesion or damage to healthy bone tissue.

[0004] Bone lesions are irregular in shape, and traditional straight-handle instruments have difficulty reaching and treating all corners, resulting in dead zones and affecting surgical outcomes.

[0005] Bone fragments and bleeding generated during grinding can quickly obscure the field of vision, making the already difficult blind operation even more dangerous. Although current technology uses rinsing, it often lacks an effective closed circulation system, resulting in low efficiency in debris removal and potentially increasing the risk of infection in surrounding tissues.

[0006] Therefore, this patent designs and manufactures a universal grinding device with its own light source and camera. While providing sufficient light source for the grinding surgical field, its universal grinding drill can grind various parts around the lesion, remove tumor lesions, improve surgical efficacy, and reduce tumor recurrence rate. Summary of the Invention

[0007] The purpose of this invention is to provide a visual universal bone lesion grinding device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a visual universal bone lesion grinding device, comprising a handle and an insertion tube inserted into the patient's body, wherein the end of the insertion tube integrates an objective lens, a light guide, a nozzle and an instrument channel opening, and the handle is provided with an insertion port communicating with the instrument channel opening, wherein the insertion port is used to insert a grinding unit that passes through the instrument channel opening.

[0009] The grinding unit includes a rotating shaft and a grinding drill. One end of the rotating shaft is provided with a grinding drill adapter for mounting the grinding drill. The other end of the rotating shaft is connected to a universal drive shaft. An external sheath in the universal drive shaft is connected to a connecting sheath sleeved on the outside of the grinding drill. The bottom end of the grinding drill is provided with a grinding head for grinding.

[0010] It also includes two sleeves, which are respectively located at the operation window and water inlet window opened on the bone. A sealing channel is opened at the center of the sleeves, and the two sleeves are respectively inserted into the insertion pipe and the water outlet pipe through the sealing channel.

[0011] Preferably, the insertion tube is provided with a channel for connecting to the nozzle, the nozzle is connected to the water pipe interface on the handle, and the handle is provided with a water supply button and an air supply button. The insertion tube is also provided with a circuit channel for connecting the wires of the front-end CCD and the back-end processor, and transmitting image signals to the display through the image sensor on the objective lens.

[0012] Preferably, the outer peripheral wall of the sleeve is provided with a mounting base for connecting to the window, the mounting base is provided with an O-ring, the outer peripheral wall of the sleeve is provided with a one-way valve, and the sleeve seals the window with bone wax.

[0013] Preferably, a grinding drill adapter is fixedly installed at the end of the rotating shaft. The end of the grinding drill adapter is provided with a plug-in part and a fixing part integrally formed with the grinding drill adapter by casting. The plug-in part and the fixing part are used to plug into the end of the grinding drill. The plug-in part has a mounting hole, and the grinding drill has a threaded hole corresponding to the mounting hole. The plug-in part is connected to the threaded hole on the grinding drill by bolts.

[0014] Preferably, the fixing part is provided with multiple guide grooves, the inlet of the guide groove is "trumpet-shaped", and the end of the grinding drill is provided with an insertion protrusion corresponding to the guide groove.

[0015] Preferably, a connecting sleeve is inserted inside the connecting sheath tube, the connecting sleeve is rotatably connected to the grinding drill interface, and a threaded interface is provided at the end of the connecting sleeve, the threaded interface being threadedly connected to a threaded groove provided at the end of the fixed sleeve.

[0016] Preferably, a pusher seat is slidably connected to the inner wall of the fixed sleeve, a limit sleeve is fixedly connected inside the fixed sleeve, a steel ball for squeezing the drill is provided between the limit sleeve and the pusher seat, and the contact surface between the pusher seat and the steel ball is tapered.

[0017] Preferably, the inner wall of the limiting sleeve is provided with a limiting groove, the limiting groove is provided corresponding to the steel ball, and the size of the limiting groove is slightly smaller than that of the steel ball.

[0018] Preferably, an adjustment groove is provided at the bottom of the threaded groove, and an adjustment seat is threadedly connected to the fixed sleeve through the adjustment groove. The adjustment seat is used to push the push seat to slide in the fixed sleeve.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. Achieve panoramic visualization and precise operation: By integrating a panoramic camera at the end of the insertion tube, which is aligned with the main direction of the grinding drill, the entire lesion cavity and the entire grinding process can be observed in real time and from all angles. This changes the traditional blind or localized surgical mode, allowing doctors to clearly see the lesion boundary and grinding depth, greatly improving the thoroughness of lesion removal and surgical safety. The grinding unit is connected to a universal drive shaft, and its power system transmits rotational power from the main unit to the grinding drill interface through a universal joint. The grinding drill interface is designed to be detachable, making it easy to replace old grinding heads or grinding heads of different models.

[0021] 2. A closed-loop perfusion system was established: Two cannulas formed a closed water perfusion operating environment with the bone cavity, creating the conditions for grinding. One cannulas served as the water inlet and the other as the drain outlet. The two cannulas formed a circulation channel, and the debris generated during grinding was discharged through flushing. This prevented debris in the blood or flushing fluid from blocking or obscuring the lens. By ensuring visibility, the feasibility of the entire operation was guaranteed. The one-way valve on the cannulas could automatically release pressure to prevent excessive pressure in the cavity from causing damage to the patient, thus improving the safety of the surgery.

[0022] 3. A multi-layered, intelligent safety monitoring and early warning system has been established: The device has comprehensive self-testing and real-time monitoring functions, capable of monitoring key parameters such as working pressure, field of vision clarity, water injection system pressure, and equipment temperature. In the event of an anomaly, a multi-level alarm system, from initial prompts to mandatory intervention, guides the operator to troubleshoot the problem promptly. This proactive safety design minimizes potential risks, ensuring the smooth and safe operation of the surgical procedure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram showing the connection between the handle, insertion tube, and water pipe interface of the present invention;

[0025] Figure 3 This is a schematic diagram of the sleeve structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the insertion tube end structure of the present invention;

[0027] Figure 5 This is a schematic diagram showing the connection between the protective sheath and the drill bit of the present invention;

[0028] Figure 6 This is a schematic diagram of the internal structure of the protective sheath of the present invention;

[0029] Figure 7 This is a schematic diagram showing the disassembly of the drive shaft and the grinding drill of the present invention;

[0030] Figure 8 This is a schematic diagram of the internal structure of the fixing sleeve of the present invention;

[0031] Figure 9 This is a flowchart of the safety monitoring process of the present invention;

[0032] Figure 10 This is a flowchart of the pressure monitoring and control process of the present invention;

[0033] Figure 11 This is a flowchart illustrating the closed-loop water injection operation environment control process of the present invention.

[0034] In the diagram: 1. Handle; 11. Insertion port; 2. Insertion tube; 21. Objective lens; 22. Light guide; 23. Nozzle; 3. Water pipe interface; 4. Sleeve; 41. Mounting base; 411. O-ring seal; 42. Check valve; 43. Water outlet pipe; 5. Connecting sheath; 6. Rotating shaft; 61. Drill jack interface; 611. Insertion part; 612. Fixing part; 613. Guide groove; 614. Mounting hole; 62. Connecting sleeve; 621. Threaded interface; 7. Drill; 71. Grinding head; 72. Insertion protrusion; 73. Threaded hole; 8. Fixing sleeve; 81. Threaded groove; 82. Adjusting groove; 83. Adjusting seat; 84. Limiting sleeve; 841. Limiting groove; 85. Steel ball; 86. Push seat. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] This invention provides, for example Figures 1-11 The illustrated visual universal bone lesion grinding device includes a handle 1 and an insertion tube 2 inserted into the patient's body. The end of the insertion tube 2 integrates an objective lens 21, a light guide 22, a nozzle 23 and an instrument channel opening. The handle 1 is provided with an insertion port 11 that communicates with the instrument channel opening. The insertion port 11 is used to insert a grinding unit that passes through the instrument channel opening.

[0037] Objective lens 21 is a panoramic camera whose shooting direction is consistent with the main grinding direction of drill 7, allowing real-time and all-round observation of the entire lesion cavity and the entire grinding process. This changes the traditional blind or localized surgical mode, enabling doctors to clearly see the lesion boundary and grinding depth, greatly improving the thoroughness of lesion removal and surgical safety.

[0038] The grinding unit includes a rotating shaft 6 and a grinding drill 7. One end of the rotating shaft 6 is provided with a grinding drill adapter 61 for mounting the grinding drill 7. The other end of the rotating shaft 6 is connected to a universal drive shaft. The universal drive shaft has an outer sheath connected to a connecting sheath 5 sleeved on the outside of the grinding drill 7. The bottom end of the grinding drill 7 is provided with a grinding head 71 for grinding.

[0039] A host interface is provided at the end of the handle 1. The host interface is used to quickly connect and lock to the host power source. A transmission slot is provided inside the handle 1. The handle 1 contains an angle adjustment and locking mechanism.

[0040] Adjustment principle: The "tight" or "loose" state of the universal joint of the internal drive shaft is controlled by pushing, pulling, or rotating the collar on handle 1.

[0041] Locking principle: When the desired angle is adjusted, the locking mechanism is released. This can be controlled by a knob or lever. The internal clamping device, such as a ceramic bearing, friction plate, or elastic sleeve, will release the pressure applied to the protective sheath of the drive shaft, fixing it in place and preventing it from moving. This locks the angle. After locking, the drive shaft can drive the rotating shaft 6 to rotate freely inside, but the outer casing is fixed.

[0042] Universal drive shaft includes:

[0043] Internal spindle: also known as a flexible shaft or universal joint chain, responsible for transmitting torque.

[0044] Outer sheath: A protective outer shell, typically composed of a metal braided mesh and a polymer layer, providing rigidity, abrasion resistance, and flexibility. The locking mechanism actually locks this sheath. The universal joint drive shaft is prior art and will not be described in detail here.

[0045] It also includes two sleeves 4, which are located at the operation window and water inlet window opened on the bone, respectively. The two sleeves 4 form a closed water-filled operation environment with the bone cavity to create grinding conditions. One sleeve 4 is a water inlet and the other sleeve 4 is a drain outlet. The two sleeves 4 form a circulation channel to remove the debris generated during grinding through rinsing, avoiding the blockage or obstruction of the lens by debris in blood or rinsing fluid. The feasibility of the entire operation process is ensured by ensuring visibility.

[0046] A sealing channel is provided at the center of the sleeve 4. The two sleeves 4 are inserted into the insertion tube 2 and the water outlet tube 43 respectively through the sealing channel. The insertion tube 2 and the water outlet tube 43 can be interchanged on the two sleeves 4, thereby changing the grinding direction and facilitating further comprehensive grinding.

[0047] The insertion tube 2 has a channel for connecting to the nozzle 23. The nozzle 23 is connected to the water pipe interface 3 on the handle 1. The handle 1 is equipped with a water supply button and an air supply button. It is connected to the water bottle through the water pipe interface 3. When the water supply button is pressed, the valve switches, connecting the insertion tube 2 to the air pump. The air pump generates gas that is forced into the upper part of the water bottle, forcing the water in the bottle out through a thin tube. The water flow driven by the air pressure passes through the pipe and is finally sprayed out from the nozzle 23 at the front end to rinse the lens. When the air supply button is pressed, the valve switches, and the air pump generates gas that is directly delivered to the nozzle 23 at the front end through the pipe and blown into the body cavity.

[0048] The insertion tube 2 is also equipped with a circuit channel for connecting the wires of the front-end CCD and the back-end processor. The signal transmission line is connected to the image sensor on the objective lens 21 through the circuit channel, and the image signal is then transmitted to the image processor through the signal transmission line and displayed on the monitor, which facilitates the observation of the polishing environment.

[0049] The outer peripheral wall of the sleeve 4 is provided with a mounting base 41 for connecting with the window. An O-ring seal 411 is provided in the mounting base 41. The sleeve 4 is connected to the window through the mounting base 41 to ensure the stability of the connection of the sleeve 4 at the window. At the same time, the O-ring seal 411 is used to simply seal the connection between the sleeve 4 and the window.

[0050] The outer peripheral wall of the cannula 4 is provided with a one-way valve 42. When the pressure of the formed closed water irrigation is too high, the liquid can be discharged through the one-way valve 42 to complete the pressure relief and ensure that the pressure of the closed water irrigation environment does not exceed the set threshold, thus protecting the patient. The cannula 4 is sealed at the window with bone wax.

[0051] Workflow:

[0052] Step 1: Preoperative preparation and equipment connection

[0053] Equipment inspection and assembly:

[0054] Remove the aseptically packaged components, including handle 1, insertion tube 2, polishing unit, and protective sheath.

[0055] According to the needs of the operation, select the appropriate drill 7, insert it into the rotating shaft 6, and tighten it with bolts to complete the installation of drill 7. Combine the drive shaft assembly with drill 7 installed with the protective sheath and set it aside as a whole.

[0056] Connecting the main unit and the power source:

[0057] Align the main unit interface at the end of handle 1 with the main unit power source, insert and rotate to connect and lock. Connect the water pipe interface 3 on handle 1 to a pressurized water source (such as a saline bottle) through a pipe. Ensure that the main unit power supply, image processing system and display are all turned on.

[0058] Equipment power-on self-test:

[0059] When the main unit is powered on, the device will automatically perform a power-on self-test to check whether the camera, light source, transmission system, sensors, etc. are working properly.

[0060] Step 2: Establishing the surgical access and a closed environment

[0061] Establishing bone windows: Two bone windows are created at appropriate locations on the patient's bones using conventional surgical techniques, serving as an operating window and an inlet window, respectively.

[0062] Install sealing sleeve 4:

[0063] Insert the two sleeves 4 into the operating window and the water inlet window respectively. Use the mounting base 41 and O-ring 411 on the sleeve 4 to ensure that the sleeve 4 fits tightly with the bone window. If necessary, bone wax can be used to strengthen the seal to form a closed bone cavity operating environment. Adjust the pressure threshold of the one-way valve 42 on one of the sleeves 4 to a safe range.

[0064] Connect the circulation pipeline: Connect the water inlet pipe to one sleeve 4 (as the water inlet), and connect the suction pipe of the suction device to another sleeve 4 (as the drain outlet) to establish a closed water circulation channel.

[0065] Step 3: Insertion of instruments and initial observation:

[0066] Inserting the main instrument: The assembled insertion tube assembly (which integrates objective lens 21, light guide 22, and nozzle 23) is slowly inserted into the patient's body through the cannula 4, which serves as the operating window, until the tip reaches the lesion area.

[0067] Initiation of infusion and observation:

[0068] Turn on the perfusion pump and suction device to begin infusing physiological saline into the bone cavity and establish circulation. The purpose is to flush away the initial blood and debris, creating a clear field of view for observation.

[0069] The entire lesion cavity can be observed on the monitor using a panoramic camera to confirm the location, size, and shape of the lesion.

[0070] Step 4: Adjust the angle and lock:

[0071] Adjusting the direction: By pushing, pulling or rotating the adjusting collar on the handle 1, the bending angle of the front end of the insertion tube 2 is changed, so that the grinding head 71 of the drill 7 is aligned with the lesion area to be treated. Since the shooting direction of the camera is consistent with the main direction of the drill 7, the precise direction can be seen on the screen.

[0072] Locking Angle: After adjusting to the optimal angle, turn or rotate the locking mechanism (such as a knob or lever) on the handle 1. The internal clamping device will lock the outer sheath and fix the angle firmly. At this time, the rotating shaft 6 can still rotate freely, but the instrument shell is stable.

[0073] Step 5: Perform polishing and real-time monitoring:

[0074] Start grinding: Lightly step on the foot switch or press the power switch on handle 1. The main power source drives the rotating shaft 6 and the grinding drill 7 to start rotating and grind the lesion.

[0075] Real-time observation and operation: Doctors can operate instruments to polish under a clear panoramic view. They can rinse the lens at any time by pressing the water button on handle 1 or blow away obstructions by pressing the air button.

[0076] Step 6: Adjustments and Comprehensive Refinement

[0077] Changing the grinding direction: In order to grind the lesion more thoroughly, the functions of the two sleeves 4 can be interchanged. The insertion tube 2 is removed from the current sleeve 4 and another sleeve 4 is inserted (the original drain port becomes the operating port). The water outlet 43 is connected to the original operating port. This changes the entry direction of the grinding instrument and can treat areas that were previously difficult to reach.

[0078] Repeat steps four and five: readjust the instrument angle and lock it, and continue the grinding operation in the new direction until the lesion is completely removed.

[0079] Step 7: End of surgery and removal of equipment

[0080] Stop grinding: Drill 7 stops rotating.

[0081] Final irrigation and observation: Continue irrigation for a period of time to thoroughly irrigate the bone cavity, confirming that the lesion has been completely removed and there is no active bleeding.

[0082] Withdrawal of equipment:

[0083] First, loosen the locking mechanism on handle 1 to restore the insertion tube 2 to a straight position.

[0084] Then, slowly withdraw the insertion tube assembly from the sleeve 4.

[0085] Shutting down the equipment: Turn off the power source, injection pump and suction device in sequence, and disconnect all connecting pipelines.

[0086] Remove cannula 4 and close the wound: Finally, remove both cannulas 4 from the bone window and close the surgical wound according to standard surgical procedures.

[0087] Example 1: A grinding drill adapter 61 is fixedly installed at the end of the rotating shaft 6. The end of the grinding drill adapter 61 is provided with a plug-in part 611 and a fixing part 612 integrally formed with the grinding drill adapter 61 by casting. The plug-in part 611 and the fixing part 612 are used to plug into the end of the grinding drill 7. The plug-in part 611 is provided with a mounting hole 614. The grinding drill 7 is provided with a threaded hole 73 corresponding to the mounting hole 614. The plug-in part 611 is connected to the threaded hole 73 on the grinding drill 7 by bolts.

[0088] By inserting the drill 7 into the insertion part 611 and the fixing part 612 on the drill jack 61, the drill 7 is engaged with the drill jack 61, and then the drill 7 is connected to the rotating shaft 6. By disassembling the drill 7, different drills 7 can be replaced, and the grinding head 71 can be replaced, which is convenient for replacing old grinding heads 71 ​​or grinding heads 71 ​​of different models.

[0089] The fixing part 612 is provided with multiple guide grooves 613, the inlet of the guide groove 613 is "trumpet-shaped", and the end of the grinding drill 7 is provided with an insertion protrusion 72 corresponding to the guide groove 613.

[0090] The "trumpet-shaped" design of the guide groove 613 facilitates the insertion of the insertion protrusion 72 into the guide groove 613. As the insertion protrusion 72 is continuously inserted, the guide groove 613 limits the position of the insertion protrusion 72 until the insertion protrusion 72 is fully inserted into the guide groove 613, thus completing the docking between the insertion protrusion 72 and the guide groove 613. Even if the bolts at the connection between the drill 7 and the drill adapter 61 become loose, the stability of the connection between the drill 7 and the drill adapter 61 can be ensured under the limitation of the guide groove 613, preventing the drill 7 from shaking and affecting the grinding effect.

[0091] A connecting sleeve 62 is inserted inside the connecting sheath 5. The connecting sleeve 62 is rotatably connected to the grinding and drilling interface 61. A threaded interface 621 is provided at the end of the connecting sleeve 62. The threaded interface 621 is threadedly connected to the threaded groove 81 at the end of the fixed sleeve 8.

[0092] After the grinding drill 7 and the grinding drill adapter 61 are installed, the fixing sleeve 8 and the connecting sleeve 62 are installed so that the fixing sleeve 8 is fitted around the outer periphery of the grinding drill 7. The fixing sleeve 8 restricts the grinding drill 7 and prevents it from shaking during grinding.

[0093] Example 2: A pusher seat 86 is slidably connected to the inner wall of the fixed sleeve 8. A limit sleeve 84 is fixedly connected inside the fixed sleeve 8. A steel ball 85 for pressing the grinding drill 7 is provided between the limit sleeve 84 and the pusher seat 86. The contact surface between the pusher seat 86 and the steel ball 85 is tapered.

[0094] By adjusting the movement of the push seat 86, its inclined surface pushes the steel ball 85 to move towards the drill 7 inserted in the limiting sleeve 84 until the steel ball 85 is in contact with the outer peripheral wall of the drill 7. Under the action of multiple steel balls 85, the drill 7 is limited to the center position, so as to avoid the drill 7 from shaking due to hard contact with the grinding head 71 during grinding, which would affect the grinding effect.

[0095] The inner wall of the limiting sleeve 84 is provided with a limiting groove 841, which corresponds to the steel ball 85, and the size of the limiting groove 841 is slightly smaller than that of the steel ball 85.

[0096] By setting the limiting groove 841, it is convenient for part of the steel ball 85 to enter the limiting sleeve 84 and contact the grinding drill 7. By setting the size of the limiting groove 841 to be slightly smaller than the steel ball 85, the steel ball 85 is prevented from falling out of the limiting sleeve 84 and the push seat 86.

[0097] The bottom of the threaded groove 81 is provided with an adjustment groove 82. The fixed sleeve 8 is threadedly connected to the adjustment seat 83 through the adjustment groove 82. The adjustment seat 83 is used to push the push seat 86 to slide in the fixed sleeve 8.

[0098] By rotating the adjusting seat 83, the adjusting seat 83 pushes the pushing seat 86 to move. As the pushing seat 86 moves, its inclined surface pushes the steel ball 85 to move toward the grinding drill 7, thus centering the grinding drill 7. The steel ball 85 is movable between the pushing seat 86 and the limiting sleeve 84, and it does not obstruct the rotation of the grinding drill 7.

[0099] Workflow: When using the device, first perform a power-on self-test to check the sensors, cameras, light sources, and power system to determine if they are normal. If an abnormality is detected, lock the device and illuminate the corresponding fault light to provide a fault warning. If a normality is detected, the device is ready for use.

[0100] Real-time monitoring during use:

[0101] When the pressure exceeds the set threshold, a level one alarm will be triggered, with a strong audible, visual, and vibration alarm, and the speed will be automatically reduced or stopped.

[0102] When the field of vision is blurred / lost, a level two alarm is triggered, the screen flashes, an audible alert is given, and an automatic pulse flush is initiated;

[0103] When the water injection system pressure is abnormal, a level three alarm is triggered, prompting a check of the inlet / outlet pipes to determine if they are blocked.

[0104] When the temperature is too high, a level three alarm is triggered to prompt the equipment to cool down and to automatically perform pulse flushing;

[0105] The operator intervenes to handle the alarm and troubleshoot the problem. If the problem is resolved, the equipment can be used. If the problem cannot be resolved, it is recommended to stop using the equipment and complete the traditional surgery.

[0106] After the equipment is powered on, the pressure is determined by collecting the motor current signal and setting a preset pressure threshold.

[0107] When the pressure approaches the threshold, visual feedback: the numerical bar turns yellow / flashes; auditory feedback: intermittent beeping.

[0108] When the pressure is within the ideal operating range, visual feedback is shown: the numerical bar turns green.

[0109] When the pressure is too high, visual feedback is given: the numerical bar turns red / flashes strongly; auditory feedback is given: a continuous, rapid alarm sound; and the motor speed is automatically reduced.

[0110] Furthermore, the operator makes adjustments based on feedback to determine whether to continue polishing. If polishing is not required, the polishing process ends. If polishing needs to continue, the motor current signal is continuously collected in real time to determine the pressure.

[0111] Insert insertion tube 2 and water outlet tube 43 into the two sleeves 4 respectively to form a closed water injection operation environment. At this time, set the injection pressure threshold, start the injection pump and suction device, the injection pump injects water through the insertion tube 2, and then the suction device discharges the water from the water outlet tube 43 to complete the water circulation and flushing.

[0112] Furthermore, when creating a closed water irrigation operating environment, the pressure is monitored and judged. When the pressure is normal, the next step is to judge the clarity of the field of vision. If the field of vision is clear, the current parameters are maintained and the surgical operation continues, and the pressure is continuously judged until the polishing is completed.

[0113] When visibility is poor, activate the pulse flushing mode and continuously monitor the pressure.

[0114] When the pressure is too high, reduce the flow rate of the infusion pump or check the suction tube, and continue to judge the pressure. When the pressure in the closed water infusion operation environment is too high and reaches the set threshold, the one-way valve 42 is installed on the outer peripheral wall of the sleeve 4. By controlling the one-way valve 42 to open, the liquid is discharged to protect the patient and relieve pressure.

[0115] If the pressure is too low, increase the flow rate of the injection pump or check the sealing, and continue to monitor the pressure.

[0116] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A visual, universal bone lesion grinding device, characterized in that, Includes a handle (1) and an insertion tube (2) inserted into the patient's body. The end of the insertion tube (2) is integrated with an objective lens (21), a light guide (22), a nozzle (23) and an instrument channel opening. The handle (1) is provided with an insertion port (11) that communicates with the instrument channel opening. The insertion port (11) is used to insert a grinding unit that passes through the instrument channel opening. The grinding unit includes a rotating shaft (6) and a grinding drill (7). One end of the rotating shaft (6) is provided with a grinding drill adapter (61) for mounting the grinding drill (7). The other end of the rotating shaft (6) is connected to a universal drive shaft. The universal drive shaft has an outer sheath connected to a connecting sheath (5) sleeved on the outside of the grinding drill (7). The bottom end of the grinding drill (7) is provided with a grinding head (71) for grinding. It also includes two sleeves (4), which are respectively located at the operation window and water inlet window opened on the bone. A sealing channel is opened at the center of the sleeve (4), and the two sleeves (4) are respectively inserted into the insertion pipe (2) and the water outlet pipe (43) through the sealing channel.

2. The visual universal bone lesion grinding device according to claim 1, characterized in that, The insertion tube (2) is provided with a channel for connecting to the nozzle (23). The nozzle (23) is connected to the water pipe interface (3) on the handle (1). A water supply button and an air supply button are provided on the handle (1). The insertion tube (2) is also provided with a circuit line channel for connecting the wires of the front-end CCD and the back-end processor. The image signal is transmitted to the display through the image sensor on the objective lens (21).

3. The visual universal bone lesion grinding device according to claim 1, characterized in that, The outer peripheral wall of the sleeve (4) is provided with a mounting base (41) for connecting with the window, and an O-ring (411) is provided in the mounting base (41). A one-way valve (42) is provided on the outer peripheral wall of the sleeve (4). The sleeve (4) seals the window with bone wax.

4. The visual universal bone lesion grinding device according to claim 1, characterized in that, The end of the rotating shaft (6) is fixedly installed with a grinding drill adapter (61). The end of the grinding drill adapter (61) is provided with a plug-in part (611) and a fixing part (612) integrally formed with the grinding drill adapter (61) by casting. The plug-in part (611) and the fixing part (612) are used to plug into the end of the grinding drill (7). The plug-in part (611) is provided with a mounting hole (614). The grinding drill (7) is provided with a threaded hole (73) corresponding to the mounting hole (614). The plug-in part (611) is connected to the threaded hole (73) on the grinding drill (7) by bolts.

5. The visual universal bone lesion grinding device according to claim 4, characterized in that, The fixing part (612) is provided with a plurality of guide grooves (613), the inlet of the guide groove (613) is "trumpet-shaped", and the end of the grinding drill (7) is provided with a plug-in protrusion (72) corresponding to the guide groove (613).

6. The visual universal bone lesion grinding device according to claim 1, characterized in that, A connecting sleeve (62) is inserted inside the connecting sheath (5). The connecting sleeve (62) is rotatably connected to the grinding and drilling interface (61). A threaded interface (621) is provided at the end of the connecting sleeve (62). The threaded interface (621) is threadedly connected to the threaded groove (81) at the end of the fixed sleeve (8).

7. A visual universal bone lesion grinding device according to claim 6, characterized in that, The inner wall of the fixed sleeve (8) is slidably connected to a pusher seat (86), and the inside of the fixed sleeve (8) is fixedly connected to a limit sleeve (84). A steel ball (85) for squeezing the drill (7) is provided between the limit sleeve (84) and the pusher seat (86). The contact surface between the pusher seat (86) and the steel ball (85) is tapered.

8. A visual universal bone lesion grinding device according to claim 7, characterized in that, The inner wall of the limiting sleeve (84) is provided with a limiting groove (841), which is provided corresponding to the steel ball (85), and the size of the limiting groove (841) is slightly smaller than that of the steel ball (85).

9. A visual universal bone lesion grinding device according to claim 6, characterized in that, The bottom of the threaded groove (81) is provided with an adjustment groove (82), and the fixed sleeve (8) is threadedly connected to an adjustment seat (83) through the adjustment groove (82). The adjustment seat (83) is used to push the push seat (86) to slide in the fixed sleeve (8).

Images