58 results about "Knee joint replacement" patented technology

The invention discloses a hip and knee joint replacement postoperative rehabilitation method and system based on mobile medical treatment, relates to the technical field of medical rehabilitation, and discloses the hip and knee joint replacement postoperative rehabilitation method and system based on mobile medical treatment. The training plan is dynamically adjusted in combination with multi-dimensional indexes, the problems of compensation recognition deficiency, feedback lag and plan stiffness in a traditional rehabilitation scheme are effectively solved, the rehabilitation effect can be improved, and the injury risk of adjacent joints can be reduced.

The invention provides an osteotomy path adjusting system in robot-assisted knee arthroplasty, and belongs to the technical field of knee joint detection. The system comprises a multi-modal data acquisition unit which comprises a knee joint pressure measuring gasket, an optical acquisition module and a kinematics data acquisition module, the knee joint pressure measuring gasket is used for acquiring knee joint pressure signals in an operation, and the optical acquisition module is used for acquiring relative poses of a femur and a tibia; the kinematics data acquisition module is used for acquiring kinematics data of the mechanical arm; the main control calculation unit comprises a data fusion module and a dynamic compensation module, and the data fusion module is used for constructing a synchronous spatio-temporal data set; and the dynamic compensation module is used for outputting a compensation instruction to the mechanical arm to adjust an osteotomy path based on the synchronous spatio-temporal data set, the preoperative predicted pressure prediction matrix and the soft tissue stiffness matrix. The pressure change in the operation can be responded in real time, the operation precision of the knee arthroplasty is improved, and the dependence on the experience of doctors can be reduced.

The present invention relates to a system for determining the angle of osteotomy. The system comprises a plurality of liners, a pressure measurement apparatus and a processing module. Each liner comprises a liner body having an upper surface and a lower surface. A longitudinal distance between a slope region of each upper surface and a planar region of the upper surface gradually increases from a position near the geometric symmetry central axis of the liner to both sides of the liner, so as to define the degree of a tilt angle. The pressure measurement apparatus is used for measuring a pressure applied by each of two extremity sides of a bone joint, so as to determine a pressure difference value. The processing module is configured to determine an angle of osteotomy for the extremity sides on the basis of the tilt angles of the liners that balance the tension of the two extremity sides. The present invention restores the tension condition in a real working state of a joint before osteotomy and takes into account the balance state of the tension of soft tissue as a consideration for the angle of osteotomy, thereby effectively solving the problem of unbalanced tension between soft tissue at the inner and the outer sides of knee joints after total knee arthroplasty, and keeping the original mechanical performance of knee joints of patients after surgery.

The invention provides a data processing method, medium and equipment in knee arthroplasty, and belongs to the technical field of medical electronics. The method comprises the following steps: acquiring pressure distribution data, measured by an array sensor, of an articular compartment in a complete period of joint movement; based on the pressure distribution data, pressure centers under all buckling degrees in the whole period of joint movement are calculated, and corresponding pressure center tracks are formed; calculating shear stress distribution data under the complete period of joint movement based on the pressure center track data; based on the pressure distribution data, calculating a dynamic pressure envelope line under the complete period of the joint movement; and generating an intraoperative correction suggestion for knee arthroplasty based on the pressure center trajectory, the shear stress distribution data and the dynamic pressure envelope. The correction suggestions given by the method are more accurate for abnormal conditions occurring in knee replacement.

Methods and devices are disclosed for soft tissue balancing of a knee joint during an arthroplasty procedure that include balancing the knee joint at or near mid-flexion, while maintaining the rotational position of the femur with respect to the tibia that replicates proper kinematic placement of these bones. Also disclosed are methods and devices for soft tissue balancing of a knee joint during an arthroplasty procedure that include balancing the knee joint at or near mid-flexion using one or more expansion devices that are not actively requiring monitoring and / or recording of forces applied by the bodily tissues, but instead uses incremental changes in actual length / height of the expansion device to determine whether the joint is properly tensioned or too lax.

Methods and devices are disclosed for soft tissue balancing of a knee joint during an arthroplasty procedure that include balancing the knee joint at or near mid-flexion, while maintaining the rotational position of the femur with respect to the tibia that replicates proper kinematic placement of these bones. Also disclosed are methods and devices for soft tissue balancing of a knee joint during an arthroplasty procedure that include balancing the knee joint at or near mid-flexion using one or more expansion devices that are not actively requiring monitoring and / or recording of forces applied by the bodily tissues, but instead uses incremental changes in actual length / height of the expansion device to determine whether the joint is properly tensioned or too lax.

The invention belongs to the technical field of instruments for knee arthroplasty, and particularly relates to a rotatable central positioning angle-adjustable tibia osteotomy template, which mainly comprises a fixed frame, an angle adjusting device, an angle adjusting device and an angle adjusting device, the guide frame is arranged in the mounting groove, an osteotomy groove is formed in the guide frame in a penetrating mode, the guide frame is provided with a first rotating track and a second rotating track relative to the fixed frame, and the axis of the first rotating track is perpendicular to the axis of the second rotating track; the first angle adjusting mechanism is connected with the fixed frame and the guide frame, and the first angle adjusting mechanism is constructed to be capable of driving the guide frame to rotate in the mounting groove along a first rotating track; the second angle adjusting mechanism is connected with the fixed frame and the guide frame, and the second angle adjusting mechanism is configured to drive the guide frame to rotate in the mounting groove along a second rotating track; and when the guide frame rotates along the first rotating track, the second angle adjusting mechanism synchronously moves along with the guide frame.

The invention provides a lower limb fixing device for knee replacement surgery in the orthopedics department and belongs to the technical field of medical equipment. Comprising a bottom box, a fixing assembly used for fixing the legs of a patient is installed at the top of the bottom box, the fixing assembly comprises two first thigh plates, two first shank plates and two foot boxes which are symmetrically arranged at the top of the bottom box, and a second thigh plate is slidably clamped in one end of each first thigh plate. Through cooperation of the fixing assembly, the adjusting assembly and the positioning assembly, it can be ensured that the leg position of a patient is accurate and stable in an operation, the stretching assembly can promote recovery of knee joints after the operation, the postoperative rehabilitation effect of the patient is overall improved, and meanwhile the stretching assembly is additionally arranged, so that the postoperative rehabilitation effect of the patient is improved. The postoperative knee joint recovery process of a patient is more scientific and efficient, the overall recovery effect is optimized by reducing unhealthy symptoms such as muscle stiffness of the whole body, and the defect that traditional postoperative recovery only depends on drugs and passive methods is overcome.

The invention provides a bone joint replacement surgery auxiliary device which comprises a bottom plate, a main lifting part is arranged on the upper side of the bottom plate and comprises two symmetrically-arranged adjusting plates, the lower portions of the side faces of the two adjusting plates are movably arranged on the bottom plate, and the upper portions of the side faces of the two adjusting plates are rotationally connected through a mounting shaft; a mounting opening is formed in the top end of the adjusting plate, a telescopic rod is slidably arranged in the mounting opening, and a positioning piece used for adjusting and positioning the telescopic rod is arranged on the side face of the adjusting plate. According to the auxiliary device for the bone joint replacement surgery, when a patient is subjected to knee joint replacement, supporting and positioning are conducted through the auxiliary device, it is guaranteed that legs of the patient are stably placed in the surgery process, meanwhile, the auxiliary device can be used for adjusting and positioning the height of the legs of the patient, and medical staff can conveniently conduct surgical treatment on the patient; and the angle of the knee joint can be adjusted and positioned according to operation requirements, so that the auxiliary device is convenient to use.

The invention relates to a knee joint endoprosthesis (1) having a femoral component (10) for anchoring to a distal end of a femur and a tibial component (30) for anchoring to a proximal end of a tibia, wherein the femoral component and the tibial component each have a surface (17, 37) that is porous and / or has elevations and depressions. The invention further relates to a surgical kit for knee joint replacement.

This application relates to the field of medical device technology, specifically to an extramedullary positioning distal femoral osteotomy device for knee replacement, comprising an osteotomy plate, an axial indicator, a rotating component, and a reference plate. The osteotomy plate has a reference end face and an abutment end face, with a cutting suture and pin holes provided on the reference end face. The axial indicator is rotatably mounted on the reference end face; the rotating component is rotatably mounted on the reference end face; the reference plate is slidably mounted on the rotating component, and the reference plate can slide on the rotating component in a direction away from or close to the rotation axis of the rotating component, with the reference plate perpendicular to the reference end face. In this application, the axial indicator determines the direction of the patient's femoral axis, ensuring that the movement of the osteotomy plate is consistent with the direction of the femoral axis, thereby improving the accuracy of the cutting position during surgery. The rotating component and the reference plate allow the surgeon to adjust according to the preoperatively determined angle of the prosthesis articular surface, enabling precise matching of the cutting suture angle with the prosthesis articular surface, further improving the precision of the surgery.

The application discloses a hip-knee joint replacement postoperative rehabilitation method and system based on mobile medical treatment, relates to the technical field of medical rehabilitation, and discloses the hip-knee joint replacement postoperative rehabilitation method and system based on mobile medical treatment. The wearable sensor is used for monitoring patient motion data in real time and recognizing compensatory behavior. A training plan is dynamically adjusted in combination with multidimensional indexes, the problems of missing compensation recognition, feedback lag and plan rigidity in the traditional rehabilitation scheme are effectively solved, the rehabilitation effect can be improved, and the risk of adjacent joint injury can be reduced.

Robotic systems for orthopedic surgery are provided. The robotic systems may include at least first and second motors coupled to each other. An output shaft of one of the motors may be connectable to a surgical tool guide. An output shaft of another of the motors may be coupled to a portion of a ball and socket joint. A corresponding portion of the ball and socket joint may be coupled to a bone mount which may be attached to a bone to mount the first and second motors to bone for performing orthopedic surgical procedures.

A handheld three-axis swing saw type knee joint replacement robot system comprises a handheld instrument part and a navigation control part for guiding the handheld instrument part to accurately position and cut a target tissue in an operation, and the handheld instrument part further comprises an operation main body and a three-axis dynamic following mechanism; the three-axis dynamic following mechanism further cuts a tail end control unit, a rolling connection control unit and a pitching lifting control unit; the transverse rolling connection control unit is configured to enable the first fuselage to actively rotate around a transverse rolling shaft where the first fuselage is located relative to the second fuselage; the pitching lifting control unit is configured to enable the second fuselage to perform pitching angle control around a pitching shaft relative to the third fuselage and / or enable the second fuselage to perform lifting control relative to the third fuselage; the navigation control part is used for respectively controlling the cutting tail end control unit, the rolling connection control unit and the pitching lifting control unit to carry out three-degree-of-freedom joint motion of pitching, lifting and rolling so as to ensure the follow-up alignment operation of the operation execution part and the osteotomy surface.

The invention provides a human body model for a knee joint replacement simulation operation, and relates to the field of human body models. The human body model for the knee joint replacement simulation operation comprises a base and a knee joint model, a driving motor is fixedly arranged at the midpoint of the bottom end face in the base, a driving shaft is fixedly arranged at the output end of the driving motor, a mounting seat is fixedly arranged at the upper end of the driving shaft, and an electric telescopic rod is fixedly arranged on one side of the outer wall of the mounting seat. A supporting mechanism is fixedly arranged at the midpoint of the upper end face of the mounting base and comprises a first supporting rod and a second supporting rod, the first supporting rod and the second supporting rod are connected through a folding assembly to achieve 90-degree overturning, and the folding assembly comprises a first rotating shaft. According to the knee joint human body model, flat-lying type operation scene simulation can be achieved, the anthropomorphic bending and stretching effect can be achieved, and therefore operation of a replacement simulation operation and simulation judgment of operation success are facilitated.

A computer-implemented method for creating an activity-optimized cutting guides for surgical procedures includes receiving one or more pre-operative images depicting one or more anatomical joints of a patient, and creating a three-dimensional anatomical model of the one or more anatomical joints based on the one or more pre-operative images. One or more patient-specific anatomical measurements are determined based on the three-dimensional anatomical model. A statistical model of joint performance is applied to the patient-specific anatomical measurements to identify one or more cut angles for performing a surgical procedure. A patient-specific cutting guide is created that comprises one or more apertures positioned based on the one or more cut angles.

The invention discloses a knee joint osteotomy guide plate and a use method thereof, and relates to the field of knee joint replacement tools, the knee joint osteotomy guide plate comprises a thighbone osteotomy guide plate, the thighbone osteotomy guide plate comprises a thighbone guide plate main body and a thighbone insertion block, the thighbone guide plate main body and the thighbone insertion block are in insertion fit, and the thighbone guide plate main body is provided with a first binding surface, a first spicule fixing hole and a thighbone osteotomy groove; a second binding surface is arranged on the thighbone insertion block, and the first binding surface and the second binding surface are used for being attached to the thighbone surface or the thighbone osteophyte; the tibia osteotomy guide plate comprises a tibia guide plate main body and a tibia insertion block, the tibia guide plate main body and the tibia insertion block are matched in an inserted mode, the tibia guide plate main body is provided with a third attaching face, a second bone needle fixing hole and a tibia osteotomy groove, the tibia insertion block is provided with a fourth attaching face, and the third attaching face and the fourth attaching face are used for being attached to the tibia face or the tibia osteophyte; according to the osteotomy guide plate, an osteotomy plane is accurately positioned by utilizing a plurality of parts or osteophyte with obvious knee joint bone tissue characteristics, so that the osteotomy accuracy is improved, and the surgical risk can be reduced.

The utility model discloses a kind of knee joint replacement postoperative rehabilitation pressing devices, including stand, one end of the stand is movably connected with movable seat, one end of the movable seat is fixedly connected with lifting seat, the both sides of the lifting seat are movably connected with telescopic plate, one end of the telescopic plate is fixedly connected with boom, the utility model has beneficial effect, first power mechanism, second power mechanism, third power mechanism and inflation mechanism are respectively driven by controller to operate, so that two groups of fixed rods can be clamped to the calf and thigh in the air, its knee is located in the just below lifting seat, finally again through first power mechanism drive lifting seat slowly lift, lifting lifting seat pushes the lifting of hanged clamping seat, clamping seat drives the lifting of connected clamping plate, clamping plate can repeatedly press the leg of clamping, structure is reasonable, it is convenient for automatic pressing of leg, less manual labor, it is convenient to adjust simultaneously, it is convenient for different body size patient to be clamped and pressed.

1. Name of the Design Product: Osteotomy Protection Tool. 2. Use of the Design Product: Used for osteotomy protection during knee joint replacement surgery, especially for osteotomy protection during unicompartmental replacement surgery. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

The invention relates to the technical field of intelligent rehabilitation devices, in particular to a knee joint replacement postoperative lower limb rehabilitation training system based on somatosensory interaction. Comprising a posture supporting device capable of being arranged to be in a lying or side lying state, an infrared rehabilitation mechanism used for conducting microcirculation adjustment on lower limbs before rehabilitation, a sensing detection mechanism used for providing motion resistance, a physical sign obtaining mechanism used for obtaining physical sign information and a somatosensory obtaining mechanism used for obtaining dynamic motion data. The rehabilitation analysis mechanism is connected with the physical sign acquisition mechanism and the somatosensory acquisition mechanism; and the processor is used for determining microcirculation setting parameters based on the acquired physical signs and somatosensory data, determining a single motion period according to motion resistance changes, extracting real-time motion resistance and joint vibration signals under corresponding actions based on the single motion period to determine a motion fatigue attenuation coefficient, and determining rehabilitation progress according to the motion fatigue attenuation coefficient. The motion resistance is intelligently adjusted based on multiple sensing data, and the rehabilitation efficiency of a user can be improved.

The utility model discloses a hip and knee joint replacement postoperative rehabilitation training device which comprises an L-shaped front support formed by connecting a front outer cross rod and a front outer vertical rod and an L-shaped rear support formed by connecting a rear outer cross rod and a rear outer vertical rod, and the inner side of the front support is connected with the inner side of the rear support through a thick connecting rod. A front inner cross rod and a rear inner cross rod are installed in the front outer cross rod and the rear outer cross rod in a drawing and inserting mode respectively, the other end of the front inner cross rod and the other end of the rear inner cross rod are connected through a first connecting rod, a front inner vertical rod and a rear inner vertical rod are installed in the front outer vertical rod and the rear outer vertical rod in a drawing and inserting mode respectively, and the other end of the front inner vertical rod and the other end of the rear inner vertical rod are connected through a second connecting rod. The front sides and the rear sides of the first connecting rod and the second connecting rod are hinged to the front telescopic rod and the rear telescopic rod respectively, and a nylon cloth piece is arranged between the front telescopic rod and the rear telescopic rod. According to the utility model, the postoperative rehabilitation training process of a patient can be standardized, so that the patient can effectively perform rehabilitation exercise after leaving a hospital; more labor is saved when the patient exercises, and the rehabilitation effect of the patient is improved.

The invention provides a prosthesis taking-out device for a knee joint replacement revision operation based on a high-frequency electrotome, and belongs to the technical field of medical instruments. Comprising a high-frequency electrotome pen head, the top end of the high-frequency electrotome pen head is fixedly connected with a high-frequency electrotome pen body, the top end of the high-frequency electrotome pen body is provided with a connecting plate, the connecting plate is provided with a first negative pressure pipe, the first negative pressure pipe penetrates through the connecting plate, and the top end of the high-frequency electrotome pen body is in threaded connection with a fixing cap; the fixing cap is movably connected with the first negative pressure pipe in a sleeved mode, and the fixing cap is located at the top end of the high-frequency electric knife pen body and attached to the connecting plate. According to the high-frequency electrotome pen, the high-frequency electrotome pen head is arranged, bone cement is subjected to hot melting by heating a prosthesis, the stripping difficulty of the main bone of a prosthesis patient is lowered, the requirements for operation experience and the technology are lowered, and the high-frequency electrotome pen has the advantages of being simple in structure, convenient to use and high in practicability. The suction assembly sucks the hot-melted bone cement.

The utility model relates to the technical field of hip and knee joint replacement postoperative recovery instruments, and provides a quadriceps femoris contraction exercise prompter which comprises a patella sleeve, a sounder, an air bag, a pressure recorder and a counter, the air bag, the pressure recorder and the counter are arranged on the patella sleeve, the air bag corresponds to popliteal fossa, an air outlet nozzle is arranged on the air bag, and the sounder is detachably arranged in the air outlet nozzle. According to the quadriceps femoris training device, the patella sleeves are arranged on the legs to fix the air bags on the popliteal fossa of the patient, when the patient performs quadriceps femoris training, the knees exert force downwards to exert pressure on the air bags, after the air bags are contracted, prompt sound is given out through the sounder, and therefore the effect that the patient can be informed whether the action is qualified or not without accompanying of family members is achieved; meanwhile, the number of times of compression of the air bag is counted through the counter so as to judge the number of times of exercise of the patient, medical staff can conveniently judge the effectiveness of quadriceps femoris exercise, rehabilitation of the patient is promoted, the self-protection capacity of the patient is improved, and the labor cost is reduced.

The application provides a bone-cutting guide for knee joint replacement surgery navigation and a use method thereof. The bone-cuting guide comprises: a navigation array for calibrating the position of a saw blade in a navigation system; a saw blade fixing seat for fixing a bone needle and mounting the saw blade; a first direction adjusting structure for adjusting the movement of the saw blade fixing seat; and a bone needle for being fixed in a bone needle hole of the saw blade fixing seat. Compared with the prior art, the application can realize accurate positioning of the angle and position of bone cutting by calibrating the position of the saw blade in the navigation system in time. Compared with the scheme in which a doctor uses a traditional surgical tool to perform bone cutting, the bone-cuting guide and the bone-cutting method have high position accuracy and depend less on the experience of the doctor, and compared with the scheme in which bone cutting is performed by cooperation of full intelligent navigation technology and a mechanical arm, the application does not need the participation of the mechanical arm, the operation steps are simple, and the surgical cost is reduced.

Methods and devices are disclosed for soft tissue balancing of a knee joint during an arthroplasty procedure that include balancing the knee joint at or near mid-flexion, while maintaining the rotational position of the femur with respect to the tibia that replicates proper kinematic placement of these bones. Also disclosed are methods and devices for soft tissue balancing of a knee joint during an arthroplasty procedure that include balancing the knee joint at or near mid-flexion using one or more expansion devices that are not actively requiring monitoring and / or recording of forces applied by the bodily tissues, but instead uses incremental changes in actual length / height of the expansion device to determine whether the joint is properly tensioned or too lax.

The utility model belongs to the technical field of medical instruments, and particularly relates to an extramedullary positioning device for distal femur osteotomy in knee joint replacement, one end of a horizontal rod is sleeved on an adjusting handle, and a first locking mechanism is used for locking the position of the horizontal rod; the bottom of the adjusting handle is backwards connected with a lower plug and at least one upper plug; a first sliding groove is formed in the positioning seat, the positioning seat is horizontally and slidably connected with the horizontal rod through the first sliding groove, the adjusting seat and the angle adjusting mechanism are rotatably connected to the upper portion of the positioning seat, the angle adjusting mechanism can drive the adjusting seat to rotate synchronously when rotating, and the adjusting seat is backwards provided with an inserting rod. And the adjusting seat is slidably connected with a knife rest through an inserting rod. After accurate positioning, a horizontal plane positioning point at the far end of the femur can be determined through the lower plug, and the lower plug and the upper plug are matched to be jointly inserted into the outer end of the femur and do not need to go deep into the femur, so that damage to the interior of a medullary cavity is avoided, the intraoperative and postoperative bleeding amount is reduced, and the risk of postoperative infection is reduced.

A method of evaluating a knee joint including a femur, a tibia, and ligaments, includes: inserting into the joint a tensioner-balancer; moving the joint while using the tensioner-balancer to maintain predetermined distraction force or distraction height, and collecting height and force data; deriving ligament displacement data and load data from the height and distraction data; processing the data into a digital model of the joint, including a characterization curve for a plurality of flexion angles; importing into the model implant geometry having femoral and tibial components, each having a back surface; updating the model with a location of femoral and tibial cuts, positioned such that when the components are placed in the joint with their back surfaces against the respective cuts, the implant will position the joint to function in a selected portion of the curve; and storing the model.

The application discloses a knee joint replacement surgery auxiliary positioning method, electronic equipment and a storage medium. The method calculates the distance between the end tool of the mechanical arm and the surgery planning plane, the first included angle between the end tool plane of the mechanical arm and the surgery planning plane, and the second included angle between the sawtooth of the end tool of the mechanical arm and the cutting direction of the surgery planning plane at the current time, respectively. When the end tool of the mechanical arm reaches the surgery planning plane, the end tool plane of the mechanical arm is parallel to the surgery planning plane, and the sawtooth of the end tool of the mechanical arm is directed to the cutting direction of the surgery planning plane, it is determined that the positioning of the mechanical arm at the current time is accurate, the movement of the mechanical arm is controlled to stop, and when the condition is not met, the pose of the mechanical arm at the next time is calculated, the movement of the mechanical arm is controlled according to the pose at the next time, the auxiliary positioning under any pose is realized, and the application scenarios are wider than those of the prior art.

The invention relates to the technical field of crossing of orthopedic medical instruments and biomedical engineering, and discloses a knee joint personalized prosthesis appearance and implantation orientation modulation method and system based on anatomy-motion-dynamics contradiction resolution, and the method comprises the steps: constructing an energy functional of a skeleton-ligament-prosthesis system based on a minimum potential energy principle; knee joint motion features and ligament elasticity features are analyzed to serve as drive and constraint of the personalized skeleton-ligament-prosthesis three-dimensional point cloud model, and prosthesis parameters are iteratively optimized to solve the contradiction between anatomy and kinematics; establishing a muscle-bone (muscle-bone) model of a personalized prosthesis-knee joint, performing inverse kinematics and finite element coupling simulation, and aiming at minimizing joint load, muscle energy consumption and contact stress, eliminating dynamic contradiction; in combination with intraoperative morphology, kinematics, soft tissue elasticity and other multi-source information, personalized prosthesis assembly scheme optimization and surgical planning optimization are achieved, and knee joint replacement is promoted to be converted from empirical surgery to analytic surgery.

A thighbone osteotomy guiding device for knee replacement comprises a positioning fixing plate, a cover plate, a hollow connecting screw rod, a screw, an up-down adjusting knob, a left-right adjusting knob and an osteotomy guiding plate, the positioning fixing plate and the cover plate are fixedly connected through the hollow connecting screw rod, and the screw penetrates through the hollow connecting screw rod and then is fixed to a thighbone. A two-dimensional adjusting mechanism is packaged between the positioning fixing plate and the cover plate, the osteotomy guide plate is fixed on the two-dimensional adjusting mechanism, the up-down adjusting knob and the left-right adjusting knob are both connected with the two-dimensional adjusting mechanism, and the osteotomy guide plate can move up and down or left and right when the up-down adjusting knob or the left-right adjusting knob is rotated. According to the device, the osteotomy guide plate can be finely adjusted in the operation, the position of the osteotomy limiting groove is adjusted by adjusting the position of the osteotomy guide plate, the purpose of adjusting the osteotomy plane of the swing saw is achieved, the whole osteotomy device does not need to be taken down and repositioned and fixed in the adjusting process, the operation steps are saved, and the operation efficiency is improved. And the injury to the patient caused by re-fixation is relieved.