111 results about "Fracture site" patented technology

Devices, systems, and methods thereof for treating fractures of the foot using staples and a staple inserter. The staple has a plurality of legs and a bridge connecting the plurality of legs. The staple is composed of nitinol which may be bent upon application of a force and returned to the initial state after the force has been lifted. An inserter engages the staple and bends the staple at the bridge to splay the legs further apart for implantation at the fracture site. After implantation, the inserter is removed and the staple compresses the bone fracture.

The invention discloses a modeling method and system for regulating and controlling bone healing through dynamic stress stimulation, which are applied to the technical field of bone healing, and the method comprises the following steps: establishing a geometric model of a fracture part; performing mesh generation on the geometric model to generate finite element models of bones and callus; assigning values to the material attributes in the callus at the initial moment; applying dynamic load constraint to the top end of the cortical bone based on the finite element model, and establishing a bone healing model; calculating attributes of new materials in tissue cells, and judging whether the attributes of the new materials reach a preset healing standard or not through the bone healing model; if the preset healing standard is reached, simulation is completed, otherwise, iterative simulation is carried out by dynamically adjusting mechanical parameters until the preset healing standard is reached, and final bone healing data are output. Through the bone healing model, loading parameters are adjusted in real time according to simulation data, and the accuracy and reliability of bone healing simulation are improved.

The invention discloses a fracture postoperative lower limb dynamic load rehabilitation training system based on multi-modal fusion, and the system comprises a pressure sensing module which is used for collecting the pressure data of different areas of a sole in real time, and transmitting a pressure signal to an edge calculation control unit; the electromyographic signal acquisition module reflects the working state of the muscle by acquiring an electrical activity signal of the muscle, and sends an electromyographic signal to the edge calculation control unit for calculation of a dynamic safety load model and judgment of the training state by the system; the micro-motion detection module is used for monitoring micro-motion displacement of a fracture part in real time, and the initial parameter input module is connected with the edge calculation control unit and used for collecting and processing data of a fracture area of a patient; according to the invention, the safety and effectiveness of rehabilitation training are improved, the safety of a patient in the rehabilitation training process is guaranteed, the possibility that the patient is subjected to secondary injury is reduced, the quality and effect of rehabilitation training are improved, and the intelligence and visualization degree of the rehabilitation training process is improved.

Provided are a detachable robot for open fracture reduction and fixation and a method of use. The detachable robot for reduction and fixation comprises a first assembly, a second assembly, and a brace assembly. The first assembly and the second assembly are detachably connected to form an accommodation space for accommodating a fractured site. The brace assembly is located in the accommodation space and detachably connected with the first assembly. The brace assembly is used for connecting bones on the two sides of the fractured bone. The present invention features compactness, ease of operation, and improved surgery quality and efficiency. The detachable and open-close structure can meet the requirements of treating open fractures at different positions. The present invention also enables the integrated operations of reduction and fixation to ensure a more effective traction and alignment in open fracture reduction and fixing operation, thus effectively ensuring good vision of the doctor in various soft tissue repair operations.

The invention discloses an orthopedic splint monitoring method, device and system for fracture and a storage medium. The orthopedic splint monitoring method for fracture is applied to the orthopedic splint monitoring system for fracture, the orthopedic splint monitoring system for fracture comprises an orthopedic splint, and when a fracture user wears the orthopedic splint, multi-dimensional sign data of the fracture user is acquired in real time; according to the temperature and humidity of the fracture part, the pressure of the fracture part and the posture of the fracture part, the fracture part condition when the fracture user wears the orthopedic splint is determined, and the fracture part recovery condition of the fracture user is determined based on the fracture part condition obtained multiple times. Various sensor technologies are fused, the tightness, the posture and the wound temperature and humidity of the orthopedic splint are monitored in real time, and monitoring data and limb posture simulation information can be acquired at any time, so that the orthopedic splint of a fracture user is necessarily adjusted, the rehabilitation effect of the fracture user is ensured, and the use experience of the fracture user is improved.

The present invention provides a PFNA femoral intramedullary nail, belonging to the technical field of medical devices. It includes a main nail and a spiral blade nail connected to each other for fixing a fractured femur; and a thrust rod for providing an expansion force to the spiral blade nail. By setting the spiral blade nail, the present invention increases the contact force points between the spiral blade nail and the femur, improves the pulling force of the spiral blade nail, avoids the displacement of the spiral blade nail during use, and also avoids the tearing of the fracture site of the patient's femur and the action site of the spiral blade, further avoiding secondary injury to the patient's bone. It improves the connection between the spiral blade nail and the main nail, avoids the detachment and displacement of the spiral blade nail from the main nail during pulling, enhances the pulling force at the tail of the spiral blade nail, and avoids the displacement of its tail under the condition of overload pulling. By setting the thrust rod, the riveting force between the spiral blade nail and the femur can be adjusted, enabling it to be suitable for use by the elderly with different bone qualities.

The utility model provides an inflatable clamping plate which comprises a lower protective plate and an upper protective plate, the protective plates and the lower protective plate can effectively prevent an air cushion of the inflatable clamping plate from being affected by sharp objects or other damage factors in the external environment, the service life of the inflatable clamping plate is prolonged, and the fixing performance of the inflatable clamping plate is kept. Through the structural design of the upper protection plate and the lower protection plate, more stable support can be provided for a patient, the movement range of a local joint or a fracture part is effectively limited, wound healing and fracture fixation are facilitated, one side of the lower protection plate is provided with the female hook-and-loop fastener, one side of the upper protection plate is provided with the male hook-and-loop fastener, and through the connection mode of the hook-and-loop fasteners, the patient can be effectively protected; the clamping plate can be easily operated by a patient or a medical worker, and the hook-and-loop fasteners and the hook-and-loop fasteners are made of reusable materials, so that the adhesive force of the hook-and-loop fasteners and the hook-and-loop fasteners can still be kept good after the hook-and-loop fasteners and the hook-and-loop fasteners are connected for multiple times. Therefore, the clamping plate can be dismounted and mounted for many times.

The utility model provides a controllable micro-motion elastic internal fixation device with a bidirectional locking pressing plate structure, and belongs to the technical field of orthopedic medical instruments. Comprising a plurality of bridging rods; and the two end blocks are arranged at the two ends of the bridging rod. A stable frame structure is constructed through the combination of the bridging rod, the end block and the fixing screw, a fracture part is effectively connected and fixed in the axial direction, then a bidirectional locking mechanism is formed through the upper pressing plate, the lower pressing plate, the adjusting lead screw and the locknut, and the fracture part is locked by screwing the locknut. The distance and pressure between the pressing plates can be accurately adjusted and locked, dynamic force generated by factors such as muscle contraction and limb movement can be effectively resisted in the long-term use process, the pressing plates are prevented from loosening or displacing, and it is ensured that the fixing device always keeps the stable fixing effect; and the problems of poor fracture healing or malformation healing and the like caused by fixation failure are avoided.

A system for monitoring the ossification of an internally fixated fracture in a bone of a subject includes an implantable fixation device and an external wireless reader operative to transmit relative load data experienced by a bone plate across a fracture to a data server where trends in the change in added bone-support provided by the bone plate may be visualized. The implantable fixation device includes a primary load sensor and a reference load sensor, where a load value from the reference load sensor may be used to normalize the load value from the primary load sensor. The external wireless reader is in wireless communication with the implantable fixation device and is operative to receive a signal indicative of the load from each load sensor and to energize each load sensor via inductive charging.

A fracture plating system may be configured to stabilize a fracture of a bone. The bone may include an interior surface facing toward an interior body cavity of the patient, and an exterior surface facing away from the interior body cavity. The fracture plating system may include a plate formed of a biocompatible polymer and configured to span the fracture. The plate may include an exterior plate surface configured to abut the interior surface, an interior plate surface opposite the exterior plate surface, and a slot passing between the exterior plate surface and the interior plate surface. The fracture plating system may further include a tether configured to apply a force to the plate to draw the exterior plate surface against the interior surface of the bone, and a bracing member securable to the plate to restrict flexure of the plate parallel to a width of the slot.

A human body forearm fracture external fixing device comprises a cloth bag, an inner fixing sleeve and an adjustable sling, the cloth bag is in a U shape, the front end and the rear end of the adjustable sling are respectively connected with a connecting buckle, the top of the cloth bag is open, the two side walls of the front end of the top opening of the cloth bag are respectively connected with a front-end sling, and the front-end sling is connected with a rear-end sling. The two side walls of the rear end of an opening in the top of the cloth bag are connected with the rear-end hanging belts, the adjustable hanging belts are connected with the front-end hanging belts and the rear-end hanging belts through connecting buckles respectively, and the inner fixing sleeve adheres to the bottom of the cloth bag and can be unfolded into a rectangle or rolled into a sleeve shape. The fixing device is compact in structure, the inner fixing sleeve and the cloth bag are detachably connected, the cloth bag is convenient to detach and clean, the inner fixing sleeve is tightly wrapped on the forearm, the inner fixing sleeve is prevented from moving freely on the forearm, it is guaranteed that the elbow joint bends by 90 degrees, then the fracture position is placed in front of the chest to be suspended, and fixation of the fracture of the forearm is guaranteed.

This invention provides an internal fixation device for cancellous bone, belonging to the field of medical device technology. It includes a fixation plate with a plurality of screw holes and positioning holes arranged in a linear array on its top outer wall; and a guide assembly connected to the fixation plate, used to guide the hollow self-drilling screws. By incorporating the guide assembly, this invention not only guides the hollow self-drilling screws, preventing them from deviating from their pre-operatively assessed position during insertion, thus affecting their fixation effect on the fracture site, but also holds the screws during the guiding process, preventing the screw head from tilting and protruding, which could cause skin irritation and affect postoperative recovery.

The invention relates to the technical field of medical instruments, and particularly discloses a fracture reduction fixing device which comprises multiple sets of connecting rods, and fracture fixing rings are arranged at the two ends of the multiple sets of connecting rods respectively. Each group of connecting rods comprises a first screw rod, one end of the first screw rod is provided with a rotating rod, one end of the rotating rod is provided with an adjusting ball, the outer surface wall of the adjusting ball is sleeved with an adjusting sleeve, one end of the adjusting sleeve is embedded with a second screw rod, and the outer surface walls of the first screw rod and the second screw rod are respectively in threaded connection with a plurality of groups of first nuts; the fracture part of a patient can be slightly bent and fixed, the joint of the patient can be slightly bent and fixed, so that adhesion caused by long-term tight attachment of the joint can be avoided, and the recovery rate of the joint flexion function is increased; hindrance in the dismounting process is reduced, and the flexibility of dismounting the fracture reduction fixing device is improved; and the broken bone can be directly pulled and positioned, the precision and reliability of broken bone reduction are improved, and then the treatment effect of broken bone correction and reduction of a patient can be effectively improved.

The utility model relates to a 3D printing porous tantalum fixing system for bone nonunion. The 3D printing porous tantalum fixing system comprises an implanting part attached to a broken end area of a bone, the fixing part is connected with the implanting part and is fixed at the broken end of the bone. Compared with the prior art, the bone fracture fixing system has the advantages that the bone fracture fixing system holds the basic morphological structure of the bone at the non-connected part in a short time and plays a role in supporting, and promotes the ingrowth, repair and regeneration of the bone tissue in the long-term process, so that the bone fracture part and the fixing system form a stable integrated structure in which bone cells and tissues grow.

The invention relates to the technical field of medical instruments, in particular to a fracture reduction kirschner wire fixing guider which comprises an outer sleeve, a handle is fixedly connected to the lower end of the outer sleeve, a movable rod is movably connected into the handle, and an adjusting assembly is arranged in the outer sleeve. Through the arrangement of the adjusting assembly, the trigger is indirectly pressed to drive the movable rod to move along the outer first movable groove, so that the abutting block at the front end of the movable rod is matched with the first reduction arm for clamping, the fixation of a fracture part is realized, the fracture reduction precision and the accuracy of selecting an inner fixing position are improved, and the operation is simple and convenient. The frequency of blind driving of the screw is reduced, and the treatment pain and economic burden of a patient are greatly relieved; through the arrangement of a limiting assembly, under the cooperation of a baffle, a second spring and third teeth, the movable rod is limited, the movable rod is prevented from moving, and the stability of the device is improved; and a universal structure is adopted, so that the medical cost is reduced, and the medical cost burden of a patient is relieved.

A tunable stiffness bone rod promotes the healing of fractured bones, such as tibia bones. The tunable stiffness bone rod includes a hexagonal shape that has variable levels of stiffness upon application of an axial force. The axial force will begin a low stiffness movement of the bone rod until a threshold is met. Upon reaching the threshold, the stiffness of the bone rod increases to lessen additional longitudinal movement caused by the axial force on the bone rod.

Guide plate for the anatomical realignment of a plurality of fractured bone portions, comprising a back surface configured such as it can be distinctively coupled to the surface anatomy of the area of said plurality of fractured bone portions and characterized by a first plurality of holes placed on a first portion of the guide plate and a second plurality of holes placed on a second portion of the guide plate, wherein the first plurality of holes is misaligned with respect to the second plurality of holes.

The utility model relates to the technical field of bone fracture plates, and discloses a novel bone fracture plate which comprises a main plate, the bottom face of the main plate is fixedly connected with an extending assembly, and the two sides of the main plate are fixedly connected with fixing assemblies. According to the novel bone fracture plate, through the arrangement of the reinforcing assembly and the extending assembly, when the novel bone fracture plate is used, a patient additionally installs a reinforcing plate in the main plate according to the required situation, the reinforcing plate can be conveniently replaced by pulling a pull ring, the bone can be fixed and reinforced around the fracture part, the fracture part is prevented from shifting or deforming, stronger support is provided, and the fracture can be healed more quickly; meanwhile, the extrusion block is pressed, the extrusion block extrudes the limiting spring, the extension plate is pulled, the limiting spring resets from the interior of the limiting hole, and therefore the extension plate is limited and can be used for adjusting alignment of the fractures, the fractured parts can be better aligned and kept at the correct position, and the fracture positioning accuracy is improved. The requirements of different fracture types and severity degrees are met.

The utility model discloses a child upper limb fixing device which comprises a front arm fixing plate, an upper arm fixing plate and a reinforcing mechanism. The forearm and the upper arm of a patient can be fixed through the forearm fixing plate and the upper arm fixing plate respectively, meanwhile, the reinforcing mechanism is slidably installed on the forearm fixing plate and the upper arm fixing plate, and the fracture part of the patient can be slidably reinforced through the reinforcing mechanism; in addition, only the two sides of the fracture part need to be fixed in a targeted mode, and compared with a traditional device, different parts can be reinforced; in addition, through the mutual matching between the buckle mechanism and the reinforcing head, the fixing device can adapt to different fixing force requirements, can be used for patients with arms with different thicknesses, and is wide in application range.

This invention relates to medicine, specifically traumatology and orthopedics. It is intended for the treatment of fractures with delayed consolidation, as well as fractures with long-term non-union. The objective of the invention is to develop and implement a new closed, minimally invasive, intraosseous autografting technique for the treatment of fractures with slow healing. The essence of the invention is that when treating fractures with delayed consolidation in the presence of an installed metal rod, it is removed, after which, if necessary, a preliminary expansion of the bone marrow canal is performed, and along its course, an autograft obtained from the iliac crest or tibia is introduced into the area of ​​the fracture site, while the introduction of the autograft is carried out under the control of an electron-optical converter. The technical result consists of stimulating osteogenesis processes and accelerating fracture consolidation, reducing the trauma of surgical intervention, decreasing the risk of postoperative complications, and shortening the treatment and rehabilitation time for patients.

The invention relates to surgical forceps for holding two bone parts of a fractured bone at a bone fracture site comprising a first forceps part extending in a radial direction and a second forceps part extending in the radial direction rotatably held in a rotational direction about a pivot via a lock on the first forceps part, each forceps part having a forceps head with a clamping section at one end in the radial direction such that the bone parts are clampable between the forceps heads at the clamping sections, characterised in that each forceps part has a shoulder between the clamping sections and the lock, extending transversely to the radial direction and transversely to the direction of rotation, against which a plate can be placed against the radial direction for osteosynthesis of the bone parts.

1. The name of the design product: hard paper splint (L-shaped plate). 2. The use of the design product: use the design product to fix the part of the patient's fracture with the tape or bandage, promote the healing of the fracture and restore the function of the limb. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best shows the design points: front view. 5. The design product is a thin product, and the left view, right view, top view and bottom view are omitted.

The present invention provides an intertrochanteric fracture internal fixation system, comprising a plate having a proximal end and a distal end, with the proximal end wrapping around the greater trochanter, forming a three-dimensional structure. This intertrochanteric fracture internal fixation system can fix both coronal and sagittal plane fractures, achieving three-dimensional fixation of the intertrochanteric fracture. It is suitable for fixation of fractures that include both axial intertrochanteric fractures and anterior-posterior separation. Furthermore, this internal fixation system facilitates fixation of small fracture fragments within the fracture site.

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.

A load sharing bone plate has a plurality of directional apertures configured to effectively support and share the load with a fractured bone to promote healing. A load sharing bone plate may have a body portion that is thinner and be configured to be secured with smaller fasteners than conventional bone plates. A load sharing bone plate has a plurality of directional apertures, configured to direct a fastener is a specific orientation, such as in an oblique angle to the length and / or in an oblique angle to the width of the bone plate. A load sharing bone plate may be configured with a load sharing extension on at least one end that is configured to reduce stress concentration at the end of the bone plate. A load sharing extension may have a tapered thickness and / or width from the body portion to the extended end.

The application discloses a reduction device for femoral comminuted fracture surgery and belongs to the technical field of medical devices. The device comprises a guide rail, three sliding mechanisms are arranged on the guide rail, the bottom of the two side sliding mechanisms is connected with an electric control clamping mechanism through an extension mechanism, the electric control clamping mechanism is used for fixing the distal end and the proximal end of the fractured part, and the bottom of the middle sliding mechanism is connected with a component box. A roller is rotatably arranged in the component box through a bearing seat, gears are arranged at the two ends of the roller, a rope hook is arranged at the middle part of the roller, and the roller is connected with the shaft center of a take-up pulley outside the box. A rack meshing with the gears is arranged in the box, and the bottom end of the rack is connected with an arc-shaped pressing plate with a thermoplastic sheet. One end of a positioning rope is connected with the rope hook, the positioning rope is wound downwards through the pressing plate and then connected upwards to the component box. When the take-up pulley is rotated, the gears drive the rack to drive the pressing plate to press the bone downwards, and meanwhile, the roller drives the positioning rope to be synchronously wound and pulled. The application solves the pain points of uneven force of traditional reduction and complicated operation, and realizes accurate reduction and stable maintenance of the fractured part.

The invention relates to the technical field of bone structure mechanical simulation, in particular to a method and system for measuring the stability of a fixing structure in femoral neck fracture, and the method comprises the steps: respectively collecting a hand bone three-dimensional model and a post-operation X film for a fracture part, and carrying out the registration, so as to respectively determine the spatial position of a fracture feature point and the spatial position of a screw in the bone three-dimensional model; and establishing a postoperative three-dimensional model based on the spatial position of the fracture feature point and the spatial position of the screw for evaluating the structural stability of the fracture part. In order to solve the problem that in the prior art, simulation of a fixing structure in a postoperative skeleton is relatively rough, and postoperative fracture geometrical shape changes and actual screw angles cannot be well reflected, the position of a femoral head and the position of a screw are recognized in an X-ray film after an operation, so that the spatial position of a fracture feature point and the spatial position of the screw are formed; and an accurate postoperative three-dimensional model is constructed, so that a more accurate finite element simulation process can be realized.

The invention discloses a fracture reduction assisting device which comprises a top fixing ring, the bottom of the fixing ring is fixedly connected with an annular connecting piece, the bottom of the fixing ring is further connected with a shaping pipe, and the bottom of the shaping pipe is connected with a movable ring; the annular connecting piece is provided with a notch, one end of the notch extends to form a connecting pipe perpendicular to the notch, and the connecting pipe is in threaded connection with the fixing ring. The problems that in the prior art, under the condition that other wounds exist on the outer surface of a fractured limb of a wounded person, dressing change cannot be conducted on the other wounds when fixing devices such as gypsum splints are used, and dressing change cannot be conducted on the other wounds are solved; a fixing metal hose capable of rotating in a universal mode is adopted as a fixing pipe, the angle can be flexibly adjusted according to the specific requirement of the fracture part, it is guaranteed that the device and the body of the patient are higher in fitting degree, the position can be stably kept after adjustment, and the fixing effect is good. And accurate support assistance is provided for fracture reduction.

A pelvis fracture reduction device, comprising a proximal end reduction mechanism, a distal end reduction mechanism and a connecting rod; the proximal end reduction mechanism comprises a first frame, a first positioning assembly mounted on the first frame for fixing the proximal end bone of the affected side; the distal end reduction mechanism comprises a second frame, an adjusting frame hinged with the second frame, a second positioning assembly mounted on the second frame for fixing the distal end bone of the affected side, a third positioning assembly arranged on the adjusting frame for fixing the distal end bone of the affected side; the first frame and the second frame are connected through the connecting rod. After the pelvis fracture and displacement occur, the distal end bone of the affected side and the proximal end bone of the affected side are reduced and closed through the external reduction device. The reduction precision is high, the recovery speed of the patient is fast, and the bone recovery effect is better. At the same time, the large range of scars left by incision of the fracture site is avoided.

This invention discloses an intramedullary nail system for real-time monitoring of bone lengthening and healing status, comprising an extendable intramedullary nail body, a signal processing module, a sensing module, and a mobile APP module. The intramedullary nail body includes a hollow proximal main nail and a distal traction nail, which are coaxially sleeved with a clearance fit. The intramedullary nail body contains a power module and a transmission module for driving the distal traction nail to extend and retract axially. The sensing module includes an axial pressure sensor and a callus multimodal sensor. The axial pressure sensor is arranged on the load transmission path inside the proximal main nail to monitor axial tensile load and weight-bearing. The callus multimodal sensor is attached to the outer surface of the proximal main nail at the fracture site to acquire external normal pressure and shear force. The signal processing module is connected to the sensing module to collect and process the signals transmitted by the sensing module and transmit them wirelessly to the APP module. The APP module is used to decouple and visualize the received signals.