37 results about "Bone surgery" patented technology

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.

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 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

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 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.

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 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.

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.

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.

The application relates to the technical field of implanting bone surgery, in particular to a proximal tibia anatomical bone defect pad block prosthesis which comprises a pad block prosthesis structure and a side plate, the pad block prosthesis structure comprises an anatomical bone defect pad block and a sleeve cage structure fixed at the bottom end of the anatomical bone defect pad block, and the side plate is arranged on the side of the anatomical bone defect pad block. Through the arrangement of the pad block prosthesis structure and the side plate, on the basis of minimal osteotomy of proximal tibia bone defect, the anatomical bone defect pad block and the anatomical prosthesis with sleeve cage structures on two sides are customized according to the internal bone defect condition, the normal bone joint surface can be reserved, the amount of osteotomy is reduced, the normal patellar ligament and tibial collateral ligament are reserved, the joint function is maximally maintained, the pad block prosthesis structure and the side plate can provide initial stability and provide a structural basis for long-term stability, and the hollow sleeve cage structures on the two sides can be implanted with bone, have a bone guiding effect and can promote the formation of new bone.

The utility model discloses the variable angle half ring relates to medical instrument bone surgery fixing frame accessory technical field, including outer fixed support and support half ring, the both ends of support half ring are provided with connecting mechanism, the connecting mechanism includes hinge bolt, connecting bolt, connecting sleeve and connecting block, the hinge bolt is connected with outer fixed support sliding, the connecting sleeve is connected with support half ring sliding, the top fixed communication of hinge bolt is limited ring, this variable angle half ring, through hinge bolt and connecting bolt, will support half ring both ends fixed in outer fixed support surface, improves support half ring fixed mounting efficiency, through support half ring, positioning is carried out to connecting sleeve, avoids connecting sleeve and rotates at random, through connecting bolt, will hinge bolt and connecting sleeve fixed together, through connecting block and limit ring, positioning is carried out to hinge bolt and support half ring, fixes the angle to support half ring, improves the stability of support half ring operation.

1. The name of the design product: bone reamer. 2. The use of the design product: medical instrument for resecting tissue in bone surgery. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The technical scheme of the present application discloses a guiding robot based on projection principle and a bone surgery nail placing method, which is based on the characteristics of X-ray along a straight line and the principle that the contrast remains unchanged when an object moves along the X-ray radiation direction, determines the nail placing planes of the surgical bone nail in two radiation directions with a 90-degree intersection angle through the first positioning guide nail, the second positioning guide nail and the third positioning guide nail, and determines the unique and optimal nail placing position through the two intersecting planes. The determination of the nail placing position is completed outside the body, and only one projection in the radiation direction needs to be focused on at the same time during positioning, thereby reducing the difficulty of bone nail positioning, shortening the operation time, reducing the surgical wound of the patient and the radiation damage to the patient and the operator caused by fluoroscopy.

The utility model relates to the technical field of medical instruments, and discloses a fixing device for bone surgery, which comprises a body made of thermoplastic materials, the body is plate-shaped or net-shaped, and a hollow structure is arranged on the body and used for ventilation. Due to the fact that the body is made of the thermoplastic material, when the body is heated, the body becomes soft, the body can be cut and shaped according to the shape of an affected part, the heated body is directly attached to the affected part, after the body is cooled, the body can be shaped, and tight attachment of the body and the affected part is achieved. The body can be fixed to the affected part by fixing or winding the body of a person, the affected part is fixed and clamped, then the body can be fixed to limbs, fingers, the nose bridge and the like, the use method is simple, operation is convenient, and the operation efficiency is high.

The utility model relates to the technical field of shoulder joint training, in particular to a shoulder joint rehabilitation training device for bone surgery, which comprises a mounting mechanism and a training mechanism, the mounting mechanism comprises a base and a vertical plate fixedly mounted on the upper surface of the base, an inner cavity is formed in one end of the vertical plate, and a lifting platform and a training mechanism are arranged in the inner cavity; the training mechanism comprises installation arms fixedly arranged on the two side faces of the lifting table, one end of each installation arm is provided with a movable shaft, and a movable arm is installed on each movable shaft. According to the device, the vertical plate with the traction assembly is arranged, a patient can stand on the base, the wrist penetrates through the wrist fixing belt, the hand holds the grip, the forearm is bent downwards, and the balancing weight is pulled through the first fixed pulley and the second fixed pulley, so that the longitudinal traction capacity of the shoulder can be trained, and when the upper arm and the forearm are in a vertical state, the upper arm and the forearm can be pushed forwards; the traction spring is used for training the transverse traction capacity of shoulder muscles, secondary injury in the recovery period can be avoided, the recovery effect is improved, and meanwhile safety is guaranteed.

1. The name of the design product: inverted reamer. 2. The use of the design product: medical instrument for bone surgery, reaming and cutting human tissue. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The clinical skin incision positioning device comprises a lower positioning supporting frame, the lower positioning supporting frame is composed of a positioning main supporting body and end plates, the end plates are arranged at the two opposite ends of the positioning main supporting body, and connecting supports are arranged at the two opposite ends of the positioning main supporting body; a sliding guide rail shaft is arranged above the positioning main supporting body through two connecting supports, a skin incision cutter is arranged on the sliding guide rail shaft between the two connecting supports in a sliding mode through a fixator mechanism, and limiting mechanisms are arranged on the sliding guide rail shafts on the two opposite sides of the fixator mechanism. And a flattening mechanism is adjustably arranged on the skin incision cutter. A series of structures are arranged, the positioning and supporting direction can be adjusted according to the requirement of a surgical incision, the skin incision is accurately and flexibly positioned, the applicability is high, and the skin incision cutter can move and rotate up and down through the fixator mechanism; the flattening mechanism flattens and positions the upper portion of the skin, and surgical operation is facilitated.

The utility model relates to medical instrument technical field provides a kind of bone surgery pelvis fixed support of pressure sore prevention, comprising: two U-shaped plates, the inner surface of two U-shaped plates is all provided with sliding slot, the inside movable embedding of sliding slot is equipped with two-way screw rod, the outer surface movable sleeve of two-way screw rod is equipped with two sliding blocks;U-shaped plate is clamped in the patient basin bone, then rotates two-way screw rod by adjusting wheel, two-way screw rod moves two arc fixed plates relatively or oppositely by sliding block, and is adjusted according to the figure of patient, better fixed at the pelvis, after being adjusted to suitable position, limit pin is embedded in the limit hole inside the outer surface of limit round plate under the elastic force of spring, can limit two-way screw rod, prevent the situation of rotary loosening, better improve the fixed effect, the outer surface of arc fixed plate is provided with multiple air holes, can improve the effect of heat dissipation and ventilation, prevent the appearance of stuffy and damp, improve the comfort.

The invention discloses a control method of a skeletal surgery navigation and positioning system, and belongs to the technical field of electronic control, a skeletal image of a patient is shot, the image is transmitted to a computer, a proper prosthesis model is selected in the computer and placed on a lesion skeletal for matching, and the coincident part of the prosthesis model and the skeletal is the part needing to be cut and replaced. A sensor A and a magnetic field generator are installed, a bone image of the patient is shot again, the shooting range comprises the sensor A and a lesion bone part, a coordinate system is established in a computer with the sensor A as an original point, and the computer calculates an interface and coordinates of a prosthesis model and a bone overlapping part; a cutting tool, a grabbing tool and other tools are arranged at the front end of the mechanical arm, and a sensor B is installed at the front end of the mechanical arm. The surgical robot receives coordinates of the interface and commands the mechanical arm to conduct operations such as osteotomy resection, bone prosthesis placement or surgical channel opening in combination with position information fed back by the sensor B.

The invention provides an intra-operative intelligent navigation system of a microwave-assisted bone surgery robot, which monitors the position of a bone in real time through a non-contact microwave energy field, corrects a microwave signal in combination with preoperative X-ray image data, generates an accurate navigation path for dynamic osteotomy, and provides an accurate navigation path for dynamic osteotomy. And the surgical operation is intelligently guided. The microwave dynamic correction module comprises a microwave emission array used for scanning bone surface deformation in real time to obtain a microwave reflection signal; the dynamic path correction module is used for correcting the precision of the microwave reflection signal according to the preoperative X-ray image so as to obtain accurate real-time skeleton contour information; and the AI intraoperative navigation module is used for performing intelligent guidance according to a preoperative operation design scheme based on the accurate microwave reflection signal, so that the osteotomy operation is accurately operated strictly according to the preoperative design. According to the technical scheme, the functions of real-time intelligent correction of the osteotomy path and the digital navigation guide plate under the guidance of the surgical site image are achieved.

The invention relates to the technical field of medical apparatus and instruments, and discloses a rapid binding device for traumatic bone surgery, comprising a movable support which is slidably connected with a support platen; the supporting assembly comprises an adjusting part and at least two supporting parts, the two supporting parts are slidably connected to the supporting table plate, the adjusting part is arranged on the supporting table plate, the distance between the two supporting parts is adjusted through the adjusting part, and the supporting parts are used for supporting the to-be-bound part of the patient; the binding assembly comprises a moving frame and a binding part, the moving frame is slidably connected to the supporting table plate and located between the two supporting parts, and the binding part is arranged on the moving frame and used for conducting winding binding on the to-be-bound part of the patient; the limiting assembly comprises a limiting piece and a control piece, the control piece is arranged on the supporting table plate, the limiting piece presses one end of the bandage on one side of the to-be-bound part of the patient through the control piece, and after binding is completed, edge sealing and limiting are conducted on the bandage through the limiting piece. Automatic binding and edge sealing are achieved, and the binding efficiency and quality are improved.

The invention relates to the technical field of medical supplies, and discloses a pediatric bone surgery fracture fixing device which comprises a first C-shaped sleeve, an angle mechanism is fixedly connected to the outer surface of the first C-shaped sleeve, a second C-shaped sleeve is slidably connected to the outer surface of the angle mechanism, and an adjusting mechanism is rotatably connected to the interior of the second C-shaped sleeve. According to the pediatric bone surgery fracture fixing device, after a pediatric limb is placed in the first rotating sleeve, the second rotating sleeve drives the pediatric limb to rotate in the rotating groove, and the pediatric limb and a C-shaped opening of the second C-shaped sleeve are closed to form full-surrounding protection; a gap is reserved between the limb and the first rotating sleeve through the anti-slip strip, and ventilation is achieved through the gap between the through hole and the rotating groove; when the flexible rope is tensioned, the external thread circular plate moves in the internal thread sleeve, and an opening of the C-shaped sleeve II is adjusted to be attached to the limb; the two ends are blocked through the C-shaped plate, the opening of the guide groove is fixed through gypsum, and protection is enhanced.