74 results about "Bone surgery" patented technology

The invention relates to the technical field of bone surgery, in particular to a bone surgery fracture correction device which comprises a first support and three guide rods, the three guide rods are installed at the bottom of the first support at equal intervals in the circumferential direction and are hollow, and the inner walls of the guide rods are in threaded connection with a bone setting mechanism; left and right opposite connecting clamps are installed on the inner side of the first support and the inner side of the bone setting mechanism respectively, the first support and the inner side of the bone setting mechanism are locked through the connecting clamps and steel needles penetrating through bones, the bone setting mechanism is made to adjust the distance between fracture connecting positions, clamping devices are installed on the outer walls of the first support and the outer wall of the bone setting mechanism respectively, and one end of an adjuster is installed at the front end of each clamping device; a heating mechanism is mounted at the other end of the adjuster, and blood circulation at the fracture position is promoted through the heating mechanism; the bone setting mechanism comprises a second support. The growth space of the callus is accurately adjusted, the bone is firmer after rehabilitation, the infrared heating lamp is dynamically heated, the skin is prevented from being burnt due to continuous heating, the dynamic temperature can better promote blood circulation, and the rehabilitation period is shortened.

To provide a bone surgical drill that facilitates surgery and improves accuracy of bone surgery at the time of bone surgery.SOLUTION: Provided is a bone surgery drill for a human or other animals, the bone surgery drill including a base part and a blade part. The blade part includes a cutting blade part including three to six cutting blades, and a distal end portion including a distal end blade. An angle of the distal end angle of the distal end blade is less than 90°. Each of the three to six cutting blades is arranged in a spiral shape in an outer peripheral surface of the cutting blade part.SELECTED DRAWING: None

The application relates to the field of medical devices, in particular to a bone surgery device based on artificial intelligence, which comprises an operating arm and a control system, the operating arm is provided with an executing mechanism for performing a surgery clamping operation, the executing mechanism comprises a driving assembly, a clamping assembly and a transmission assembly; the driving assembly is used for providing output power; the transmission assembly is connected with the driving assembly and transmits the output power to the clamping assembly to drive the clamping assembly to generate adaptive clamping force. The executing mechanism is also provided with a conveying mechanism for conveying a disinfecting medium, and the driving assembly is also used for driving the conveying mechanism to synchronously operate so that the disinfecting medium is conveyed to an operating area to perform disinfection treatment on the operating area. Through cooperation of the driving assembly and the clamping assembly, the clamping assembly can be fitted according to the special structure of a surgery site, and clamping of a special curved surface of a bone is realized.

The utility model belongs to the technical field of orthopedic surgical instruments, in particular to a curette with a suction function special for orthopedics department, which comprises a handle, a curette part, a negative pressure mechanism and a stirring mechanism, the curette part is arranged at the left end of the handle, the curette part comprises a hollow rod, a spoon head and a connecting cap, the left end of the hollow rod is communicated with the spoon head, and the connecting cap is arranged at the right end of the handle. The right end of the hollow rod is communicated with the connecting cap; the connecting cap is connected with the left end of the handle; the negative pressure mechanism is arranged in the handle and is communicated with the hollow rod; residues and effusion scraped by the curette part are sucked away and pumped out through the negative pressure component, in the pumping-out process, the effusion drives the stirring mechanism to work, the residues circulating in an inner cavity of the curette part are smashed, channel blockage is avoided, the curette part can be detached and replaced after use, and when the curette part is taken out, the stirring mechanism is pumped out from the interior of the curette part. Residues in the curette part can be brought out, cleaning and using are convenient, and the effects of replacement, negative pressure suction, crushing and convenient cleaning are achieved.

The invention discloses a bone surgery steel plate fixing auxiliary device, and relates to the field of medical instruments, the bone surgery steel plate fixing auxiliary device comprises a fixing seat and an adjusting mechanism movably arranged at the bottom end of the fixing seat and used for adjusting the clamping distance, clamping mechanisms used for clamping bones are symmetrically arranged at the bottom end of the fixing seat in a sliding mode, and an opening and closing mechanism is fixedly arranged on one side of each clamping mechanism; fixing mechanisms for fixing a steel plate are symmetrically and movably arranged on one side of the opening and closing mechanism, and a centering sleeve rod for centering the steel plate is fixedly arranged in the middle of the bottom end of the adjusting mechanism; the centering sleeve rod penetrates through the center of the steel plate, so that the center of the steel plate is aligned with the center of a skeleton; the clamping plate is driven by the third spring to provide reverse clamping force, and the steel plate is stably and centrally clamped by combining the silica gel pad; the steel plate slides down to the bone surface and is attached to the bone surface in cooperation with opening and closing of the check blocks, the problems that in a traditional operation, the steel plate is prone to deviating from the center and attaching is inaccurate are solved, the repeated adjustment and X-ray perspective times in the operation are reduced, and the radiation risk is reduced.

The application discloses a plastic bone bed and a spinal bone surgery method, and the plastic bone bed comprises a main body and an anchor nail, the main body is formed by a titanium alloy material, a middle crease is arranged on the back surface of the main body, two side creases are arranged on the front surface of the main body, the middle crease and the two side creases on the two sides of the middle crease divide the main body into four areas, a plurality of through holes in a display arrangement are arranged in each area, a polygonal hole is formed among every four through holes, the four corners of the main body are arranged below the nail caps of the screws in the rod system, and the two ends of the middle crease are designed to be slotted, and the two side parts of the slotted part of the main body and the spine of the patient are connected together through the anchor nail. The plastic bone bed is connected with the spine of the patient through the anchor nail, and the stability of the plastic bone bed is improved.

A surgical guide is used in computer-assisted orthognathic surgery or similar bone surgeries. The guide is configured to correctly position osteotomy marking members and implant fixing screw receiving holes on the bone surface of a patient, and / or correctly position the cutting of an osteotomy or the drilling of implant fixing screw receiving holes. The guide has a bone conforming member and a dental interface member connected by a bridging member. The inner surfaces of the bone conforming member and the dental interface member conform to the morphological surfaces of the patient's bone and teeth. The dental interface member abuts against the front and side portions of the teeth. A fixing implant with a similar design can also be provided.

The utility model relates to the technical field of leg supporting, in particular to a leg supporting device for bone surgery, which comprises a hollow column, fixing and clamping mechanisms are movably arranged on two sides of the hollow column at the bottom end, and each fixing and clamping mechanism comprises a lifting rod, a wedging groove, a fixing screw, a threaded rod and a rotating handle. The lifting rods are pulled out of the hollow columns up and down, then the rotating handles on the two sides of the bottom ends of the two hollow columns are rotated, the threaded rods move towards the interiors of the hollow columns to be fixed, the corresponding height is determined, and one ends of the threaded rods are clamped into the wedging grooves in the two sides of the lifting rods to be fixed. At the moment, the patient can place the whole leg on the U-shaped bearing block, the gravity of the leg downwards extrudes a buffer spring to enable the buffer spring to generate elastic deformation, supporting is conducted through the brought reverse acting force, the device is provided with a supporting mechanism capable of being adjusted in a lifting mode, the device can be suitable for being used by patients of different age groups, and the optimal supporting and fixing point can be found conveniently.

The present invention relates to a recombinant humanized type III collagen-hydroxyapatite composite bone repair material and its preparation method and application. At present, the industry has always expected to achieve efficient production of macromolecular humanized collagen or whole human collagen, which is a technical difficulty that is difficult to completely break through. The molecular weight of the recombinant humanized type III collagen of the present invention is close to that of natural collagen; at the same time, its encoding gene is optimized to achieve efficient and secretory expression of recombinant collagen with high yield. The composite bone repair material prepared with the collagen of the present invention has a more uniform microstructure than the products prepared with commercially available natural collagen or type III human collagen, and achieves the combination of hydroxyapatite grains and collagen fibers at the nanoscale. At the same time, there is a multi-scale pore structure inside the material, which achieves the purpose of better biomimetic natural bone composite material preparation. Therefore, this product can be widely used in dental (jaw) bone defects, as well as dental or bone surgery such as filling and repair of bone defects, nonunion, delayed bone healing or nonunion caused by various reasons, so that more patients can benefit from it.

The invention provides a multifunctional electric bone saw, and belongs to the technical field of medical instruments, the multifunctional electric bone saw comprises bearing brackets, the lower ends of the bearing brackets are fixedly connected with patches, the outer wall surfaces of the bearing brackets are fixedly connected with traction frames, the traction frames are fixedly connected with leather covers, the upper ends of the bearing brackets are fixedly connected with third connecting blocks, the bearing brackets are arranged in pairs, and the upper ends of the bearing brackets are fixedly connected with second connecting blocks. A bearing block is fixedly connected between the two bearing frames, a sliding way is reserved in the upper end of the bearing block, the upper wall face of a third connecting block is fixedly connected with two third vertical blocks, and the upper ends of the two third vertical blocks are fixedly connected with a transverse block. The multifunctional electric bone saw solves the problems that an existing multifunctional electric bone saw is inconvenient to position the to-be-sawed bone position of a wounded person in the bone surgery stage, the to-be-sawed bone position is prone to displacement during bone sawing, the bone sawing accuracy is reduced, and the surgery risk is expanded.

The invention discloses a threading bone screw, and relates to the technical field of clinical medicine bone surgery, the threading bone screw comprises a screw body, the screw body is made of a titanium alloy material, one end of the screw body is provided with a telescopic assembly used for changing the number of screw threads, and the telescopic assembly comprises a hollow rod. According to the threading bone screw, when the threading bone screw needs to be used for fixing a fracture part and when a patient with dense sclerotin needs to use the bone screw for fixing a bone, a rotating block is rotated anticlockwise, a hollow rod is driven to cover more threaded rings, and the number of exposed threaded rings of the threading screw is reduced; when a patient with relatively loose sclerotin needs to use the bone screw for fixation, the rotating block is rotated clockwise to drive the hollow rod to move reversely, so that the exposed part of the threaded ring is increased, and the exposed threaded ring of the threading bone screw can be adjusted according to the actual condition of the bone of the patient.

The application discloses a steel plate fixing auxiliary device for bone surgery and relates to the field of medical instruments, which comprises a fixing seat and an adjusting mechanism movably arranged at the bottom end of the fixing seat and used for adjusting the clamping distance, the bottom end of the fixing seat is symmetrically provided with clamping mechanisms used for clamping bones and slidably arranged, one side of each of the clamping mechanisms is fixedly provided with an opening and closing mechanism, one side of the opening and closing mechanism is symmetrically movably provided with a fixing mechanism used for fixing a steel plate, and the bottom end of the adjusting mechanism is fixedly provided with a centering sleeve rod used for centering the steel plate; the centering sleeve rod penetrates the center of the steel plate, the center of the steel plate is aligned with the center of the bone, the reverse clamping force is provided by the spring three-drive clamping plate, the steel plate is stably clamped in the middle in combination with the silica gel pad, the steel plate is opened and closed in cooperation with the stopper, the steel plate slides downward to the bone surface and is attached, the problems that the steel plate is prone to deviating from the center and is not accurately attached in traditional surgery are solved, the number of times of repeated adjustment and X-ray perspective in surgery is reduced, and the radiation risk is reduced.

To provide an instrument for bone surgery that enables prepared hole formation work by a drill or the like while maintaining a state of constantly compressing and sandwiching a bone with a sufficient force, enables fixation of a tibial tuberosity part by using both a washer and a screw without releasing the compressing and sandwiching the bone, and thereby, enables accurate and rapid bone surgery.SOLUTION: A slide bar 1 includes a reception part 5 that can abut on one side surface of a bone W. A mobile device 2 movable along a longitudinal direction of the slide bar 1 is provided. The mobile device 2 includes: a holder part 7 through which a rod-shaped member 19 passes; and a compression part 8 that abuts on the other side surface of the bone W.SELECTED DRAWING: Figure 1

The utility model discloses a novel bone surgery fixing support, and relates to the technical field of novel bone surgery fixing supports, the novel bone surgery fixing support comprises a first fixing seat and a second fixing seat, the first fixing seat and the second fixing seat are respectively in a square ring shape, the size of the first fixing seat is consistent with that of the second fixing seat, and the first fixing seat and the second fixing seat are distributed in a bilateral symmetry mode. First fixing plates and third fixing plates are arranged in the first fixing seat, second fixing plates and fourth fixing plates are arranged in the second fixing seat, the first fixing plates, the second fixing plates, the third fixing plates and the fourth fixing plates are consistent in size and shape, and the number of the first fixing plates, the number of the second fixing plates, the number of the third fixing plates and the number of the fourth fixing plates are all two; the two first fixing plates and the two second fixing plates are in up-down symmetry on the first fixing seat, the two third fixing plates and the two fourth fixing plates are in front-back symmetry on the first fixing seat, and the orthopedic surgery fixing device is easy to use, convenient to operate and capable of fixing orthopedic surgery patients of different ages.

To provide a bone surgery instrument, when screwing a bone-cutting part forward and backward, capable of firmly gripping a bone to maintain a good pressure contact state and when moving a body part in a longitudinal direction, not damaging the bone and soft tissue.SOLUTION: A bone surgery instrument comprises: a hook-shaped support 10 having a support part 11 including a cylindrical portion on a proximal end side and a plate-shaped receiving part 12 facing the support part on a distal end side; a body section 20 that is formed of a cylindrical body having an outer diameter that can be inserted into the cylindrical portion of the support part and has a flange having an outer diameter that cannot be inserted into the cylindrical portion, on the proximal end side; a reverse movement prevention mechanism 30 that allows the body part supported by the support part to move in a distal direction and prevents it from moving in a proximal direction; and switching means 40 for activating and deactivating the reverse movement prevention mechanism, and when the reverse movement prevention mechanism is deactivated, the body part supported by the support part can move freely in the distal and proximal directions.SELECTED DRAWING: Figure 1

The invention relates to the technical field of ulna and radius reduction, and discloses an ulna and radius reduction device for bone surgery and a using method thereof.The ulna and radius reduction device comprises a base, a support is fixedly connected to the side wall of the base, two sliding blocks are slidably connected to the top of the base, and bandages are fixedly connected to the tops of the sliding blocks. A medical worker exerts pulling force on the palm position, the palm and the top end of the front arm are pulled to drive a bandage to move, a sliding block moves synchronously, when the sliding block moves, a sliding toothed bar is driven to move, a gear is driven to rotate while the sliding toothed bar moves, and when the gear rotates, the movable toothed bar moves along with the sliding toothed bar; by means of the structure, the binding band at the tail end of the forearm and the sliding block move, the same force can be applied to the tail end of the arm while pulling force is applied to the front end of the arm of a patient, and accurate alignment of the fracture end can be effectively guaranteed by maintaining the force which is constant in size and horizontal in direction.

The invention relates to a method for quickly calculating the center of a virtual acetabulum. The method for quickly calculating the virtual acetabulum center can be applied to a medical image registration step of hip replacement, and further can be applied to a computer-assisted bone surgery, specifically, a preoperative scanning image of a patient is obtained before the surgery; recognizing the instrument position through a camera to obtain the coordinate position of the real feature point; the method comprises the following steps: simulating free fall of a small ball to obtain virtual coordinates of a ball center when an instrument is in contact with an acetabulum, and taking the virtual coordinates as coordinate positions of virtual feature points; registration can be completed and an operation can be carried out with the assistance of other feature points. The method for quickly calculating the center of the virtual acetabulum, provided by the invention, has an optimization step, and is short in calculation time and high in precision.

The application relates to the technical field of medical devices, and discloses a bone surgery drill equipment capable of recycling bone fragments, which comprises a shell, a power machine is fixedly installed at the top of the shell, the power machine outputs a torque and drives a transmission shaft to rotate when the power machine operates, a transmission shaft is fixedly installed at one end of a power machine output shaft, a negative pressure pipe is fixedly installed at the bottom of the transmission shaft, helical fins are arranged on the outer surface of the negative pressure pipe, and negative pressure holes are arranged on the outer surface of the negative pressure pipe between the helical fins. During the movement of the power machine, the transmission shaft and the ring gear rotate synchronously and in opposite directions, and under the transmission action of the inner sleeve and the rotating rod, the first drill grinding ball and the second drill grinding ball are synchronously and reversely driven to rotate, so that the vibration of the torque difference and the deflection force can be offset, the friction force generated by the first drill grinding ball and the second drill grinding ball when contacting with the bone is parallel and opposite, and can also be offset, and the practicability of the device is improved.

The application relates to the technical field of medical devices, in particular to an automatic nail taking device for bone treatment, which comprises a nail taking device and a workbench, an orthopedic support and a linear slide rail which are respectively installed on the workbench, a moving slide block capable of moving along the linear slide rail is arranged on the linear slide rail, a hinged seat is arranged on the moving slide block, an arc-shaped slide rail capable of overturning is hinged on the hinged seat, a clamping part is arranged at the tail end of the arc-shaped slide rail, a plug-in part is arranged on the workbench, a moving jig is arranged on the arc-shaped slide rail, a bearing plate for vertically placing the nail taking device is arranged between the two moving jigs, a sleeve matched with the bearing plate is arranged on the outside of the nail taking device, a clamping plate capable of clamping the outside of the sleeve is arranged above the bearing plate, a transmission mechanism is arranged on the moving jig, the bearing plate and the two clamping plates are respectively in transmission connection with the inside of the transmission mechanism, and a locking mechanism is further arranged in the inside of the transmission mechanism. The application can further fasten the nail taking device and increase the adjustment range of the nail taking device.

To provide an instrument for a bone surgery which is capable of accurate and simple arc-shaped bone-cutting and hardly causes bone fracture near a bone-cutting surface (arc-cut surface) to be formed.SOLUTION: An instrument for a bone surgery for guiding a bone-cutting blade in an arc-shape includes a flat plate support pillar part (50), an arc-planar guide part (30), and a fixed part (60) fixed to the bone. In the support pillar part, an open hole (20) is formed, which penetrates between a first surface (10A) and a second surface (10B) and is positioned on a specific point of the bone. In the guide part, a through slit (40) is formed, which penetrates between the first surface and the second surface and is opened to an arc-shape on the first surface and a second surface. A central axis of the open hole is vertical to the first surface and the second surface. In a cross-sectional view including the central axis of the open hole, the through slit tilts toward the central axis so that a separation distance from the central axis of the open hole becomes short toward the first surface side.SELECTED DRAWING: Figure 5

The utility model relates to the technical field of medical instruments, in particular to biopsy forceps special for orthopedic surgery robot positioning, which comprise positioning forceps, a positioning plate is mounted on one side of the positioning forceps, a threaded hole is formed in the middle of the positioning plate, a rotating shaft is in threaded connection with the inside of the threaded hole, a sliding column is slidably arranged in the rotating shaft, and the sliding column is connected with the positioning plate. A fixing box is fixedly connected to the bottom end of the rotating shaft, the end, away from the positioning plate, of the sliding column is located in the fixing box, a pair of cutting plates used for cutting pathological tissue is arranged on the side, away from the positioning plate, of the fixing box, and sliding assemblies used for driving the pair of cutting plates to move are arranged at the end, away from the positioning plate, of the sliding column and in the fixing box. The utility model provides a pair of biopsy forceps special for positioning of an orthopedic surgery robot, and aims to solve the problems that when the conventional biopsy forceps are used, healthy tissues are possibly injured by clamping and pulling of a cutting plate, and the tissues cannot be well taken out and the sampling efficiency is influenced because the pedicles of the clamped tissues cannot be cut off in time.

The utility model discloses bone surgery clinical gypsum manufacturing equipment which comprises a box body, a cover plate is arranged on the box body, a motor is fixed at the top of the cover plate, an output shaft of the motor is connected with a main shaft, the main shaft is fixedly sleeved with a full gear located below the cover plate, the bottom of the cover plate is rotationally connected with a pair of half gears, and the half gears are connected with the full gear in a meshed mode. An oval groove is formed in the bottom of the half gear, a guide plate is fixed to the bottom of the box body, an auxiliary shaft capable of moving in the length direction of the guide plate is arranged on the guide plate, the top end of the auxiliary shaft is located in the oval groove, two sets of sleeve frames are fixed to the circumferential outer wall of the auxiliary shaft, and stirring rods are rotationally connected to the sleeve frames. According to the gypsum stirring device, when the auxiliary shaft transversely moves, the auxiliary shaft rotates around the axis of the auxiliary shaft, the stirring rod swings back and forth within a certain angle due to the fact that the full gear and the half gear are meshed together periodically, the stirring rod does not rotate in the same plane all the time, and therefore the stirring efficiency of gypsum is improved.

The present disclosure relates to the field of medical devices, and discloses a compact serpentine surgical tool and a surgical robot system. The surgical tool includes a plurality of sliders, a plurality of drive wires, an arm body including a serpentine structure, and an end instrument. The slider includes a connection interface provided on the slider, the connection interface is used to couple with an external device and receive drive from the external device, the serpentine structure includes a plurality of bending units connected end to end; the end instrument is provided at the distal end of the serpentine structure, a plurality of drive wires are used to drive the arm body and / or the end instrument, the proximal end of the drive wire is fixedly connected to the slider, and the slider is used to push and / or pull the drive wire under the received drive. By externalizing the drive mechanism and / or externalizing the transmission mechanism that transmits the drive, the miniaturization and lightweight of the surgical tool can be achieved.

The application discloses a leg nursing bracket for bone surgery and relates to the technical field of medical devices, which comprises a supporting rod and a stabilizing mechanism, wherein the stabilizing mechanism comprises a connecting frame, one end of the connecting frame is slidably connected with a sliding block, a locking unit is arranged on the sliding block, a supporting assembly is mounted on one side of the sliding block and the end of the connecting frame away from the sliding block, the supporting assembly comprises a supporting plate, the supporting plate is rotationally connected with the connecting frame and the sliding block through a rotating shaft, and an end cover is fixed to the end of the rotating shaft, the two angle-adjustable supporting plates are used for supporting and lifting the thighs and the shanks respectively, the height of the supporting plate for lifting the shank is adjustable, thus the two supporting plates can support and lift the legs according to the positions and angles of the thighs and the shanks respectively, the knee joint movement is limited, the healing effect after the knee ligament surgery is ensured, and in addition, the stabilizing mechanism is designed as a wearable type, can be worn on the legs when the patient gets out of bed and continuously maintains the flexion degree of the legs.

To reduce a risk of bone fracture of a rough surface part of a bone and bone fracture in a hinge part (a distal end in an opened part) and a diaphysis.SOLUTION: A bone surgery guide includes: an index pin 2 that is implanted to a predetermined implantation point in a bone as an index of osteotomy; a slit part 3 that guides implantation of a bone saw 5 to the bone; and a guide part 4 that guides the slit part 3, the guide part 4 including a movable member 13 that supports the index pin 2 and is movable along an arc plane around the implantation point of the index pin 2 to the bone.SELECTED DRAWING: Figure 1

Various devices and methods for use with skeletal surgery are described, including acquiring three-dimensional image data of a skeletal portion. A plurality of two-dimensional X-ray images are acquired from respective views when a portion of a tool (36) is disposed in a first position relative to the bone portion. A computer processor (22) confirms the first position relative to the three-dimensional image data based on identifying the first position within the first two-dimensional X-ray image and the second two-dimensional X-ray image. After moving the portion of the tool to a second position, an additional two-dimensional X-ray image is acquired from a single image perspective. Based on identifying the second position of the portion of the tool within the additional two-dimensional X-ray image and the confirmed first position of the portion of the tool relative to the three-dimensional image data, the computer processor derives the second position relative to the three-dimensional image data. Other applications are also described.

1. The name of the design product: bone drill. 2. The use of the design product: mainly used for bone surgery equipment, cutting and drilling work on bones. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 7 perspective view. 5. Design 7 is designated as the basic design. 6. Other circumstances that need to be explained: the hollow shape at position A in the perspective view, top view and bottom view of each design, and the hollow shape at positions B, C and D in the top view and bottom view of each design.

A method of fabricating a patient-specific buttress for securing fractured bone of a patient, the method comprising applying a buttress to a tangible model of a patient anatomy representing a fractured bone to at least one of verify a fit of the buttress to the fractured bone and deform the buttress to confirm a fit of the buttress to the fractured bone, the tangible model comprising an intended realignment of at least two bone fragments of the fractured bone to be achieved when the buttress is secured to the fractured bone.

The invention discloses an orthopedic reaming device with a bioactive glass material. The orthopedic reaming device structurally comprises a grip, a main body, a display screen, a control switch and an adjusting knob, the grip is in threaded connection with the main body, the display screen is mounted on the left end face of the main body, the control switch is arranged at the bottom of the left side of the main body, and the adjusting knob is mounted at the front end of the main body; a servo motor drives a threaded rod to rotate to be matched with a supporting frame, so that clamping blocks on the two sides of the supporting frame can be clamped in sliding clamping grooves to push a sliding base to move towards the two sides of a sliding groove, the sliding base supports a supporting arm to drive a reaming piece to broach the orthopedic surgery of a patient, and the stability of incision supporting can be improved through automatic reaming; meanwhile, skin and flesh tissue of the patient can be supported for a long time, and medical staff are assisted in orthopedic surgery for a long time.