46 results about "Fracture block" patented technology

The application belongs to the technical field of medical image processing, and particularly relates to a kind of bone fracture block automatic reduction methods based on medical image;Including: obtaining the three-dimensional medical image data and three-dimensional label data after fracture of the object to be processed, and pre-processing the three-dimensional medical image data after fracture;The three-dimensional medical image data after fracture is input into the fracture surface segmentation model trained, and the main bone surface area and fracture block surface area are obtained;Three-dimensional coordinates are extracted and main bone surface point cloud and fracture block surface point cloud are constructed;Iterative closest point registration is carried out on the two kinds, and the cumulative rigid body transformation parameter is obtained;The voxel coordinate set corresponding to the fracture block is determined, and the voxel coordinate set is subjected to spatial transformation using the cumulative rigid body transformation parameter, to obtain the three-dimensional label result after reduction;The application can simultaneously complete the problems of automatic identification of fracture section and automatic solution of fracture block reduction posture, improve the degree of automation, result stability and interpretability of fracture block reduction process.

This invention relates to the field of connecting rod processing technology, specifically to a fracture device and method for connecting rods in large machinery. The device includes a laser marking machine worktable, a fracture device worktable, and a connecting rod. A laser marking machine and a laser marking feeder are mounted on the upper end of the laser marking machine worktable. A fracture device is mounted on the upper end of the fracture device worktable. The laser marking feeder and the fracture device are used for positioning the connecting rod. The laser marking feeder includes a small-end positioning pin and a large-end positioning pin. The small-end positioning pin is used for positioning the small end of the connecting rod, and the large-end positioning pin is used for positioning the large end of the connecting rod. The fracture device includes a small-end positioning component and a fracture block. The small-end positioning component is used for positioning the small end of the connecting rod, and the fracture block is used for limiting the fracture of the large end of the connecting rod. Compared to existing sawing processes for connecting rods in large machinery, the laser marking fracture process of this invention simplifies the processing flow and improves the performance of the connecting rod.

The application discloses a three-axis motion parallel reset mechanism for closed reset of a pelvic fracture, which comprises a sick side pelvic fracture reset robot and a healthy side fixing device, and the sick side pelvic fracture reset robot comprises a movable base, a three-axis moving device, a three-axis rotating device, a reset force detecting device and a sick side screw holding device. Through the above structure, six-degree-of-freedom translation and rotation of a fracture block can be realized, and the reset force change can be monitored in real time, thereby providing a guarantee for operation safety. The three-axis rotating device is connected in series through a U-shaped frame, has a smaller space occupation than a traditional ball pair, can be close to the upper surface of a human body during reset, has a short force arm and can provide a larger reset force. The robot has the advantages of compact structure, high precision, large load force, high flexibility, large working space, a spatial virtual point as a motion center, adjustable position according to a patient and a fracture type and convenient operation.

The invention provides a fixing steel plate for proximal humerus comminuted fracture, and relates to the technical field of proximal humerus fracture, the fixing steel plate comprises a main steel plate with a connecting hole and a branch steel plate fixed with the main steel plate through the connecting hole; a plurality of extending claws are arranged on the side, away from the main steel plate, of the branch steel plate, and fixing structures are arranged at the ends of the extending claws and can connect bone fragments and make the bone fragments tightly attached to the main bone. The branch steel plates can be strip-shaped or ring-shaped, and the extension claws can be integrally formed or detachably combined. The problems that a traditional steel plate can only be placed on the outer side, and when fractures are smashed, the upper rear large nodule and the inner fracture blocks are difficult to fix and prone to displacement or internal fixation fails are solved, all-directional fixation is achieved, the steel plate is suitable for different fracture scenes, operative wounds are reduced, and shoulder joint function recovery is assisted.

The femoral multi-dimensional interlocking intramedullary nail structure comprises an aiming support, the top of the aiming support is connected to one end of a connecting handle, the other end of the connecting handle is connected to an intramedullary nail, and the two sides of the top of the aiming support are connected to one end of a left support and one end of a right support respectively; a left sleeve is inserted into the other end of the left support, a right sleeve is inserted into the other end of the right support, a left cross nail is connected to the end of the left sleeve, a right cross nail is connected to the end of the right sleeve, an aiming tube is inserted into the bottom of the aiming support, and a blade nail is connected to the end of the aiming tube. According to the internal fixation device, proximal femur fracture accompanied by split fracture of the outer side wall of greater trochanter of femur and small fracture blocks around the greater trochanter are held, so that firmer internal fixation is achieved, and internal fixation failures such as nail withdrawing and nail breaking caused by poor holding can be effectively prevented.

The invention relates to the technical field of medical instruments, in particular to an internal fixing structure for posterior cruciate ligament tibia dead center fractures, which comprises a tail plate, a plurality of movable screw holes are formed in the front side of the tail plate in a penetrating manner, a plurality of locking screw holes are formed in the rear side of the tail plate in a penetrating manner, and two head plates are fixedly mounted at the front end of the tail plate. A notch is formed between the two head plates, a plurality of fixing screw holes are formed in the surfaces of the head plates in a penetrating mode, sliding grooves are formed in the positions, close to the edges, of the left side and the right side of each head plate, and deformable needles formed in a bent mode are arranged in the sliding grooves. By dissecting the attached head and tail plate structures, adopting an encircling type fixing mode and adopting the combined design of the adjustable deformable needles and multiple types of screw holes, multi-angle, dispersive and pressurized stable fixing of the tibia dead center fracture blocks is achieved, and ligament protection and operation flexibility are taken into account while the fixing strength and stability are improved.

The utility model relates to the technical field of locking steel plates for proximal humerus fracture, in particular to a locking steel plate for proximal humerus greater tuberosity rotator cuff stop point fracture, which comprises a locking steel plate body and a top end fixing component used for fixing a small fracture block of a rotator cuff stop point, the top end fixing assembly comprises a positioning plate integrally connected with the top end of the locking steel plate body, a screw hole and a suture hole which are formed in the positioning plate, and a screw which penetrates through the screw hole to fix the positioning plate and a small fracture block at a rotator cuff dead point on a proximal humerus greater tubercle; the top end fixing assembly is arranged on the locking steel plate body, the positioning plate extends in the direction away from the top end of the locking steel plate body and covers a rotator cuff stop point, and the positioning plate and the top end of the locking steel plate body form an attaching face attached to the proximal humerus greater tubercle. And the firm fixation of the rotator cuff dead point bone block is realized.

The utility model relates to a displacement reduction device for a fracture block in a spinal canal. The displacement reduction device comprises a holding part, a first connecting rod, a second connecting rod and a reduction part, the reduction part comprises a correction rod, a reduction rod and an epidural mater protection rod; the middle of the reset rod is an arc bent section, and two ends are linear sections. One surface of the correcting rod is connected with the end part of the second connecting rod; the linear section end part of one end of the resetting rod is connected with the correcting rod; the convex surface of the arc bent section of the reset rod faces the holding part; the end part of the linear section at the other end of the reset rod is connected with the dura mater protection rod; and the dura mater protection rod faces the direction of the holding part. The arc bent section of the reduction rod is more attached to an irregular fracture block, and meanwhile the correction rod can better support and stabilize the fracture block to be reduced in the operation process and prevent the fracture block from deviating and rolling. By arranging the dura mater protection rod on the reduction rod, when the fracture block is reduced, the compression of the spinal cord is directly relieved, the dura mater, the spinal cord and nerves can be prevented from being damaged, and iatrogenic secondary injury to a patient is avoided.

The invention relates to the technical field of fracture reduction forceps, in particular to reduction forceps for metacarpal bone comminuted fracture, which comprise a forceps handle I and a forceps handle II, a rotating shaft is mounted at the intersection of the forceps handle I and the forceps handle II, limiting blocks are mounted on the inner sides of the upper ends of the forceps handle I and the forceps handle II, an elastic piece is mounted between the two limiting blocks, and the elastic piece is connected with the rotating shaft. A guide frame is installed on the first plier handle, a fixed plier head is installed at the lower end of the first plier handle, and an adjustable plier head is fixedly installed at the lower end of the second plier handle. The precise adjusting mechanism composed of the telescopic shaft, the ball head unit and the multiple tong head units is arranged in the adjustable tong head, so that a doctor can conduct synchronous or respective precise angle adjustment on the multiple tong head units according to spatial distribution of metacarpal bone comminuted fracture blocks; by means of the mechanical arm, multiple clamping points can be derived from one entry point, multiple bone blocks in different planes and at different angles can be synchronously clamped, the three-dimensional structure of the metacarpal bone is effectively recovered, and the mechanical arm is suitable for complex comminuted fractures.

The invention provides a fracture blocking rate inversion method based on GNSS earth crust deformation observation and elastic dislocation theory constraint, and the method comprises the steps: constructing a fracture three-dimensional model and an elastic dislocation constraint model, and calculating a fracture blocking rate. Through multi-period result comparison, strain field verification and earthquake activity verification, a high-risk region of pregnancy and earthquake can be identified. According to the method, the GNSS earth crust deformation observation elastic dislocation theory is adopted to constrain the negative dislocation model, and the precision and stability of fracture blocking rate inversion are remarkably improved. According to the invention, multiple periods of GNSS data are integrated to realize dynamic inversion, and the evolution trend of the locking state can be captured. According to the method, secondary blocks are finely divided, strain rate field constraints are introduced, locking distribution of a local strain enhancement area is accurately identified, the reliability of judgment of a large earthquake risk area is improved, a fracture high-locking-rate area is defined, through theoretical constraint and multi-source data fusion, the fracture locking rate inversion precision and the dynamic capture capability are improved, and the method is suitable for large-scale popularization and application. And reliable technical support is provided for earthquake risk assessment.

The invention relates to the technical field of medical treatment, in particular to an ankle joint fracture reduction assisting method under the guidance of a digital image, which comprises the following steps: acquiring CT image data of an ankle joint fracture part of a patient, and setting CT scanning parameters in the acquisition process; importing the CT image data into medical image processing software for three-dimensional reconstruction to obtain an original three-dimensional fracture model; performing measurement and virtual reduction of a fracture block on the original three-dimensional fracture model to obtain a three-dimensional fracture model after reduction; planning a surgical approach and a placement position and angle of an internal fixture based on the three-dimensional fracture model after reduction; real-time image data are collected in the operation process, registration fusion is conducted on the real-time image data and the reset three-dimensional fracture model, a visual guide image is generated, and real-time navigation is provided for operation. According to the method, the reproducible end-to-end process is formed through the steps, the process difference between different operators / hospitals is remarkably reduced, and the aims of resetting and fixing are kept consistent in the pre-operation according to the result.

The utility model provides a novel screw for fracture fixation, and relates to the field of medical instruments, the novel screw comprises a screw main body and a screw nested in the main body, and the tail part of the screw is provided with a folding blocking unit so as to improve the overall stability of the screw. A first thread part is arranged in the middle of the screw, and second thread parts extend out of the two ends of the screw and used for being connected with the supporting ring, the anti-disengaging backing ring and the nut to form a stable double-thread structure. The structure can be gradually screwed in the fracture fixing process, so that the device can adapt to different bone parts, and postoperative displacement is prevented through the anti-falling part. The folding blocking unit is composed of an installation ring, an annular piece and a plurality of sets of folding plates which can be movably connected, the small fracture blocks can be pressed tightly in the installation process, and the small fracture blocks are prevented from slipping in the healing process. The device is simple in structure, convenient to disassemble and assemble, high in applicability, capable of remarkably improving the fixing effect of a fracture part, especially suitable for fixing small free fracture blocks in orthopedic surgery and capable of promoting healing.

This invention relates to the field of medical devices. To address the technical problems of easy loss of reduction, uncontrollable pressure, and poor reduction stability when fixing a quadrilateral acetabulum in existing technologies, this invention proposes a pressure-type anatomical reduction device specifically for the quadrilateral acetabulum. The device includes a pressure reduction plate and a limiting fixation plate. One end of the pressure reduction plate is connected to one end of the limiting fixation plate via an arc-shaped connecting section. A conical positioning post is provided on the other end of the limiting fixation plate for pre-positioning a second fracture fragment. The extension direction of the conical positioning post intersects with but is not perpendicular to the axis of the limiting fixation plate. At least one limiting screw hole is provided on the limiting fixation plate, through which the limiting fixation plate attaches and positions the second fracture fragment. Multiple reduction screw holes are provided on the pressure reduction plate, through which the pressure reduction plate applies pressure to reduce the first fracture fragment. Furthermore, this invention also proposes a method for using the pressure-type anatomical reduction device specifically for the quadrilateral acetabulum.

The utility model discloses a nail plate for tibia, and relates to the technical field of nail plates. The nail plate for the tibia comprises a repairing plate, the repairing plate is in a sickle shape, one end of the repairing plate is in an arc shape, a first left inclined groove and an upper inclined groove are formed in the repairing plate, a first fixing nail is arranged in the first left inclined groove, a second fixing nail is arranged in the upper inclined groove, and the first left inclined groove and the second left inclined groove are communicated with each other. The mounting direction of the first fixing nail faces the left side, the mounting direction of the second fixing nail faces the inclined upper side, the repairing plate is made of a titanium alloy material, and a medical sterile silica gel pad is arranged on one side of the repairing plate. And four thin grooves are formed in one end of the repairing plate. The problem of infirm internal fixation can be perfectly solved by exposing a fracture end through subperiosteal separation, inserting a repair plate, placing nails into a fracture block and then applying fixation and locking.

A reduction and fixation device and a method for non-radiologic closed reduction and nailing with a weight bearable nail for femoral fractures. The reduction and fixation device includes a proximal trifurcation device, a distal trifurcation device, a length adjusting nut, and an alignment rod. The proximal trifurcation device is configured to be attached and secured to a proximal fragment of a fractured femur of a patient. The distal trifurcation device is configured to be attached and secured to a distal fragment of the fractured femur of the patient. The proximal trifurcation device, the distal trifurcation device, the length adjusting nut, and the alignment rod are configured to manipulate a proximal fragment and a distal fragment of a fractured femur to restore their alignment and orientation to a pre-fracture state.

A bone reduction and plate fixation forceps including a first arm-having a proximal part including a handle and a bifurcated distal part in which a first bone engaging jaw and second bone engaging jaw are configured to engage a first surface of a fractured bone on each side of the fracture, and a second arm having a proximal part including a handle and a distal part comprising a third bone engaging jaw configured to engage a second surface of the fractured bone to clamp the bone between the first and second arm. At least one of the first bone engaging jaws and second bone engaging jaws has a proximal to distal bridge shape.

This invention discloses an integrated preoperative planning system and method for locking plates in proximal humeral fractures, comprising: a data preprocessing module for processing CT data; a fracture segmentation and 3D reconstruction module for segmenting and generating fracture fragment models; a target anatomy prediction and fragment disposal module for predicting target anatomical morphology and classifying fracture fragments; a surgical feasibility-constrained virtual reduction module for virtual reduction under anatomical and clinical constraints; a plate fitting and fixation planning module for optimizing plate fit, screw configuration, and generating equivalent fixation parameters; a finite element modeling and solving module for automatic mechanical simulation; and a risk assessment and closed-loop optimization module for assessing risks and triggering replanning to achieve closed-loop optimization. This invention significantly reduces preoperative planning time, improves the mechanical reliability and clinical fit of the plan, and provides a quantitative basis for surgical decisions.

The utility model discloses a hook-shaped fixing steel plate for ulna coracoid process fracture. The device comprises a main plate, a protruding attaching part and a hook part which are integrally arranged and are integrally in a hook shape. The hook part is matched with the upper surface of the ulna coracoid process in shape, and the outer edge of the hook part is in a blade shape; the protuberance fitting part is matched with the anatomical form of the coronal process lateral column, and the main plate is matched with the anatomical form of the lower end part of the coronal process lateral column; a plurality of screw holes are formed in the protruding attaching part and the main plate. The fixing effect on small fracture blocks is optimized, the postoperative effect is guaranteed, and the living quality of a patient is improved.

A net cover integrated fixing anchor comprises an anchor body, a flexible net cover and a connecting belt. The anchor main body comprises a needle point part, a threaded part and a tail part, the needle point part is used for penetrating through bone cortex to assist the anchor main body in being placed, the threaded part and a bone form threaded fixed connection to provide pullout resistance, and the tail part is fixedly connected with the flexible net sleeve; the flexible net sleeve is attached to the surface of a to-be-reset fracture block, and the flexible net sleeve is matched with the anchor main body to press and limit the fracture block at the to-be-reset position. One end of the connecting belt is fixedly arranged on the flexible net cover, the other end of the connecting belt is connected with the tail part of the anchor main body, and the connecting belt can tighten the flexible net cover.

The orthopedic reduction forceps comprise two single-blade forceps fixed by a fixing bolt, each single-blade forceps is composed of a forceps head, a forceps body and a forceps handle from head to tail, the thickness of the forceps head of each single single-blade forceps is larger than 4 mm, the thickness of a cutting edge of each single single-blade forceps is larger than 1 mm, a clamping opening of each forceps head is provided with a plurality of reduction teeth, and the top end of each forceps head is further provided with tip teeth; according to the invention, the tip teeth can be easily inserted between fracture blocks, tightly attached to the fracture blocks and stably grasp the fracture blocks, the fracture broken ends can be fixed by matching with the reduction teeth, the fracture broken ends can be kept in a good alignment relationship, and meanwhile, some small tubular bones can be clamped; the forceps body is widened and thickened, the forceps body is short and thick, the fracture broken end can be better held, inconvenience caused by narrow operation space is reduced, and the situation that the fracture broken end cannot be stably held due to the fact that bent forceps and tissue forceps are too long and too thin, and effective reduction is difficult occurs.

The invention relates to the technical field of medical instruments and equipment, in particular to a special bone fracture plate for posterior PiLon fracture, which comprises a bone fracture plate body integrally in a T-shaped curve shape, integrally formed by a near end, a middle section and a far end and sequentially connected along the vertical direction; an angle fixing seat; fluorescence mark points; a groove; and compounding a growth factor coating. The device is reasonable in structure, the anatomical structure of an articular surface can be effectively recovered through personalized design and accurate fitting, and the risk of traumatic arthritis is reduced; due to the multi-angle fixing design, the holding force on a fracture block is enhanced, and displacement and looseness are reduced; the operation time is shortened and the radiation exposure is reduced through fluorescence mark assisted positioning; due to the design of the grooves and the fillets, soft tissue compression and friction are reduced, and the occurrence rate of complications is reduced; the honeycomb structure and the composite growth factor coating promote bone healing, and the recovery period is shortened; the gradient degradation material avoids secondary operation, and the burden of a patient is relieved.

A reduction and fixation auxiliary device for free condylar fractures relates to the field of surgical instrument technology. This invention solves the problem of fragmentation in existing condylar fracture reduction instruments due to the inability to accurately determine the clamping force required for different patients. The invention comprises three clamping heads distributed circumferentially and each hinged to the jaw end of a clamping forceps via a rod. Each clamping head includes a clamping shell, a pressure sensor, and an elastic buffer block. The clamping shell has a groove, the pressure sensor is embedded in the bottom of the groove, and the elastic buffer block fills the groove and covers the pressure sensor. The clamping head contacts the fracture fragment through the elastic buffer block to buffer and transmit the clamping force. The pressure sensor is used to detect the clamping force on the elastic buffer block in real time. This invention is used for the reduction and fixation of free condylar fractures.

The application relates to a proximal humerus fracture internal support repair system, which comprises a humeral head support piece, a humeral neck support piece, a humeral shaft support piece and a fixing piece, and realizes reduction fixation of proximal humerus fracture blocks and structural support of a humeral head-humeral shaft. Through the above scheme, the proximal humerus fracture internal support repair system can effectively treat proximal humeral head fractures, so as to realize better reduction and support effects and greater fixation strength, and the repair effect is better, especially for complex proximal humeral head fracture types, such as comminuted fractures, shortening deformities and the like.

The application discloses a surgical method for the reduction and fixation of a posterior cruciate ligament tibial insertion avulsion fracture under the guidance of ultrasound, and is especially suitable for the reduction treatment of a posterior cruciate ligament tibial insertion avulsion fracture. The surgical method comprises the following steps: acquiring fracture information of a patient by means of an ultrasonic positioning device, wherein the fracture information at least comprises position information of a fracture block; planning a surgical path according to the fracture information, wherein the surgical path extends from the body surface of the patient to the fracture block; placing a guide needle along the surgical path, wherein the distal end of the guide needle is arranged close to the fracture block; placing a cannula device along the guide needle, wherein the distal end of the cannula device is arranged close to the fracture block, a working channel is formed in the cannula device, and the guide needle is accommodated in the working channel; performing a reduction operation on the fracture block; making a kirschner wire pass through the working channel and temporarily position the fracture block; opening at least two bone tunnels in a main bone adjacent to the fracture block by means of a drilling device; making a suture thread pass through the at least two bone tunnels; and fixing the two ends of the suture thread.

The novel endoscope working sleeve suitable for reduction of the intra-spinal fracture block comprises a sleeve body, a pulling-up part is hinged to the front face of the sleeve body, a pulling-up connecting rod is further hinged to the lower face of the pulling-up part, and the pulling-up connecting rod penetrates out of the tail end of the sleeve body. According to the utility model, a blank in the market is filled with a simple structure, and the endoscope working sleeve can be used for rotating, prying and resetting a fracture block in a tube; particularly, the lifting part at the front part of the equipment can be subjected to pitching adjustment, and an anti-skid surface is arranged outside the lifting part; the angle of a fracture block can be adapted, and the anti-skidding effect is achieved in the turning and pulling process.

This invention discloses a fixation device for long bone fractures, belonging to the field of medical devices. It includes a limiting part, a base, elastic sutures, a reduction mesh sleeve, and a support adjustment rod. The limiting part is fixedly connected to the wall of the long bone shaft. The first end of the base is fixedly connected to the limiting part, and the second end of the base has an internally threaded hole extending towards the first end. The elastic suture extends from the second end of the base. Multiple elastic suture threading holes are discretely distributed on the reduction mesh sleeve. One side of the support adjustment rod is threadedly connected to the internally threaded hole, and the other side is fixedly connected to the reduction mesh sleeve. Multiple elastic sutures extending from the second end of the base pass through the fracture fragments at the bone ends and then fix the fracture fragments to the side of the reduction mesh sleeve facing the base via the aforementioned threading holes. This invention enables stable reduction of long bone fracture fragments, and only requires micro-holes for threading at the fracture ends, avoiding the trauma caused by numerous bone screw holes.

The invention discloses an intertrochanteric fracture navigation method and system, and relates to the technical field of intertrochanteric fracture navigation. The intertrochanteric fracture navigation method comprises the following steps: acquiring medical image data of a side hip joint area, and constructing a three-dimensional digital model; identifying a fracture line and a plurality of key bone anatomical mark points in the three-dimensional digital model; marking a near-end head and neck fracture block and a far-end backbone fracture block in the three-dimensional digital model based on a fracture line in the three-dimensional digital model; the method comprises the following steps: extracting a spatial attribute set between a near-end head and neck fracture block and a far-end backbone fracture block in a three-dimensional digital model on the basis of each key bony anatomical mark point in the three-dimensional digital model. The spatial attribute set between the near-end head and neck fracture block and the far-end backbone fracture block in the three-dimensional digital model is based on the spatial attribute set between the near-end head and neck fracture block and the far-end backbone fracture block in the three-dimensional digital model; and the target virtual implantation channel is automatically planned in the three-dimensional digital model in combination with the preset mechanical bearing area parameters so as to be used for navigation planning suggestions, so that the precision of preoperative navigation planning is realized.

The present application relates to the field of orthopedic biomedical technology, specifically, a proximal humerus fracture intramedullary bone cement support rod, which comprises a bone plate, a plurality of first connecting holes and a plurality of second connecting holes are formed on one side of the bone plate, and a solid bone nail is arranged in the first connecting hole. The device can inject bone cement into the bone marrow cavity through the injection channel and the injection port, and then solidify into a rod body to tightly fill the bone marrow cavity space. Through the cooperation of the bone plate and the bone cement support rod in the bone marrow cavity space, a support structure is formed on both sides of the humerus, the stress during the movement of the patient's arm is evenly distributed on both sides of the humerus, the fixation stability is significantly improved, the risk of internal fixation failure such as steel plate displacement and screw cutting is effectively reduced, the bone cement support rod can also prevent the displacement of the fracture block, promote the repair of the fracture, reduce the extrusion and friction of the surrounding tissue of the filling part, reduce the inflammatory reaction and postoperative pain, and improve the comfort of the patient's recovery.

The utility model discloses a greater tuberosity humerus steel plate structure in the technical field of medical instruments, which comprises a plate body, a first bendable part and a second bendable part are mounted on the surface of the upper end of the plate body side by side left and right, and first lock nail holes are fixedly formed in the surfaces of the first bendable part and the second bendable part in a penetrating manner; three sets of sewing holes are formed in the upper portion of the surface of the plate body side by side in a left-right penetrating mode, a second lock nail hole and a third lock nail hole are formed in the portion, below the sewing holes, of the surface of the plate body in a penetrating mode, and a fourth lock nail hole is formed in the portion, below the second lock nail hole and the third lock nail hole, of the surface of the plate body in a penetrating mode; the plate body structure solves the problems that according to a traditional proximal humerus steel plate, for a greater tuberosity humerus fracture block, 3.5 locking nails easily increase the crushing degree of the fracture block, and the fracture block cannot be effectively fixed, but the two first bendable pieces and the second bendable pieces at the head end of the plate body structure and the first locking nail holes can effectively prevent the greater tuberosity humerus fracture block from moving upwards, and the fracture block cannot be effectively fixed. And a fracture block can be effectively fixed.