176 results about "Fracture site" patented technology

The invention provides a limb fracture rapid reduction external fixing device based on an augmented reality technology, and belongs to the technical field of fracture reduction fixing devices. The limiting component comprises a connecting frame and a connecting arc plate, a fixing pressing plate is arranged on the outer wall of the connecting frame, a positioning clamping plate is arranged at the bottom of the fixing pressing plate, a plurality of positioning clamping grooves are formed in the connecting frame and the connecting shaft, and the positioning clamping plate is fixedly connected to the positioning clamping grooves in a sleeving mode. By arranging the reset arc plate and the limiting part, the reset arc plate can be attached to the curved surface of the limb, a gap between the reset arc plate and the limb is avoided, and meanwhile the angle between the connecting frame and the connecting arc plate can be locked under the action of the fixing pressing plate; parameters between the reduction clamping plate and the movable clamping plate can be set according to use requirements, when a fracture part is subjected to reduction, the fracture part can be rapidly subjected to reduction by means of the positions of the reduction clamping plate and the movable clamping plate with the set parameters, and the fracture part is clamped and fixed.

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.

Devices and methods for treating bone fractures involving a micromotional unit (6) that produces reciprocating displacement between two fracture fragments (1) to thereby apply controllable micromotion to a fracture site.

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.

The invention discloses a fracture reduction enhanced fixing device based on augmented reality assistance, and belongs to the field of medical instruments. Comprising a two-way telescopic rod and two connecting columns, ball grooves are formed in the middles of the two connecting columns, balls are rotationally connected to the inner walls of the two ball grooves, the two balls are fixedly connected to the telescopic end of the two-way telescopic rod, a rectangular sliding block slides, the rectangular sliding block slides to the proper needle threading position and angle, and the two ends of the two-way telescopic rod penetrate through the two-way telescopic rod. The bone nails are inserted into the near end and the far end of a fracture, then the screws are screwed, the rectangular sliding blocks are fixed, the two fixing frame bodies are made to adapt to the fracture parts of a patient according to the different fracture parts of the patient, in other words, the angle between the two fixing frame bodies can be changed, and the balls rotate in the corresponding ball grooves; the ball body rotates in the ball groove in a universal mode, the length of the two-way telescopic rod is changed along with the ball body, different fracture states of different patients can be adapted conveniently, and the ball body is limited through the limiting assembly.

The orthopedic reduction fixator comprises two fixing rings arranged at the two ends of a fracture part in a sleeving mode, fixing bases are fixedly connected to the symmetrical positions of the outer contours of the two fixing rings, and a spline shaft driven by a power mechanism to rotate is connected to one of the fixing bases in a penetrating and fixed-axis rotating mode; a spline sleeve driven by a spline shaft to rotate is rotationally connected to the other fixing seat in a penetrating mode, rectangular through grooves are formed in the symmetrical positions of the two sides of each fixing ring, sliding blocks are movably connected to the inner walls of the rectangular through grooves, and a positioning pipe allowing a lock pin body to be positioned and inserted in a penetrating mode is fixedly connected to each sliding block; arc-shaped clamping plates are fixedly connected to the outer contours of the opposite ends of the positioning pipes on the two sides of each fixing ring, and auxiliary mechanisms for driving the arc-shaped clamping plates to fix the fixing rings to the fracture position of a patient are arranged on the fixing rings, so that the fixing rings are fixed to the two ends of the fracture position of the patient respectively, and the burden of the fracture position is relieved.

The invention discloses a livestock limp detection and correction supporting device, and belongs to the technical field of livestock breeding, the livestock limp detection and correction supporting device comprises a horizontally arranged detection base, and a mesh fence is arranged on the detection base; a limping detection mechanism and a limping correction supporting mechanism are arranged on the detection base, the limping detection mechanism is in sliding fit with the detection base, the limping detection mechanism comprises four pressure sensing modules and a motion posture monitoring module, and the four pressure sensing modules are arranged on the detection base. The four pressure sensing modules are used for respectively detecting four limbs of livestock, and the motion posture monitoring module is positioned at the end part of the detection base; the limp correction supporting mechanism comprises two front leg correction mechanisms and two rear leg correction mechanisms, and the two front leg correction mechanisms and the two rear leg correction mechanisms are symmetrically arranged on the two sides of the detection base respectively. According to the invention, the affected limb and hoof part of the livestock can be adjusted to a proper angle, so that the fracture part can be better fixed and supported, and bone healing is facilitated.

The invention discloses a coating structure capable of being poured into gypsum for fracture surgery, and belongs to the technical field of gypsum dressings, the coating structure comprises a coating frame, the coating frame is located in the gypsum, one side of the coating frame is connected with a closed ring, a plurality of coating adaptation mechanisms are arranged in an inner cavity of the coating frame at equal intervals along the axis, and each coating adaptation mechanism comprises a base plate. The multiple base plates are connected with one another, and one side of each base plate is connected with a sealing sleeve. According to the device, after the covering frame is arranged outside the fracture part in a penetrating and sleeving mode, the covering position is adjusted through the covering adaptation mechanism, the covering frame is covered with a gypsum material, composite assembling of gypsum and internal dressing can be completed, and traditional Chinese medicine perfusate can be injected into the covering frame through the perfusate mechanism and the injection switching mechanism; after gypsum is assembled, flushing and dressing fitting repairing can be conducted on the external skin of the fracture, the breathability and comfort of the coating position of a patient after gypsum fixing can be improved, and the use requirement is met.

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 provides a proximal femur intramedullary nail, which comprises an intramedullary nail main body, which is configured to be arranged in a femur main body in a penetrating manner along the vertical direction; the fixing assembly comprises a fastening piece and a rotating piece, the fastening piece and the rotating piece are obliquely arranged on the intramedullary nail body in a penetrating mode, the first end of the fastening piece is configured to be arranged in the proximal femur in a penetrating mode and connected with the proximal femur, and the rotating piece is rotatably arranged on the intramedullary nail body and is in driving fit with the second end of the fastening piece; the fastener is driven to drive the proximal femur to move towards the main femur body to the position attached to the main femur body. According to the technical scheme, the problem that in the prior art, in the fixing process of a patient with the poor bone condition through an intramedullary nail system, the fracture part at the near end of the femur is possibly further damaged or shifted, the fracture part and the bone cannot be well combined, and then the bone is damaged can be solved.

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.

The utility model discloses an orthopedics department retention fixture, relates to medical instrument technical field, including casing and detachable cover the lining of casing inner side wall, wearing gap one side is equipped with the bandage no. 1 for binding shank and the bandage no. 2 for binding instep, the side wall of one side of bandage facing wearing gap is equipped with the lateral regulation hole, and the lateral regulation hole is equipped with the lateral regulation hole. And an expanding piece is adjustably arranged at the transverse adjusting hole, and the expanding piece expands on the inner side wall of the bandage. The expansion piece is used for further expanding at the wearing notch, gaps generated between the foot and the inner side wall of the lining and between the shank and the inner side wall of the lining are reduced, meanwhile, the tightness of the inner side wall of the lining wrapping the swelling position of the ankle is adjusted, and the gaps reserved between the front side of the shank and the instep of the human body and the bandage are reduced to the maximum extent; according to the rehabilitation training device, the problem that the fracture part of the ankle is painful due to relative friction generated by walking of the feet during rehabilitation training is avoided, and the problem that the fracture part of the ankle cannot be corrected due to the fact that the fracture part of the ankle is loosened along with movement of the legs is 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.

The invention discloses an auxiliary medicine based on bone fracture bonesetting treatment and application thereof, and relates to the field of orthopedic rehabilitation. According to the auxiliary medicine based on bone fracture bonesetting treatment and the application of the auxiliary medicine, under the condition that a patient has comminuted fracture, bidirectional confrontation traction is carried out on the fracture part by adopting a confrontation traction and shaking reduction method, shaking is carried out in the traction process, so that the comminuted bone fragments are reset, and then clamping and fixing are carried out through a small splint fixing operation; for a patient with the proximal humerus fractured and dislocated, a jacking traction reduction method is adopted, the fractured and dislocated part is dragged, then the fractured part is jacked, so that the fractured part is reduced, meanwhile, the dislocated part at the other end is upwards supported, so that the dislocated part is reduced, and then clamping and fixing are conducted through a small splint fixing operation; the fracture reduction effect is improved, meanwhile, reduction can be rapidly helped, and the pain of a patient is relieved.

The invention discloses a fracture traction control system which comprises a force sensor used for detecting the pulling force of a traction rope and sending the pulling force to a main control circuit; one end of the pulling rope is used for pulling a fracture part; the main control circuit is used for receiving the pulling force and comparing the pulling force with a stored preset interval value, and when the pulling force is smaller than the minimum value of the preset interval value, the main control circuit outputs a first control signal to the driving circuit; when the pulling force is greater than the maximum value of the preset interval value, the main control circuit outputs a second control signal to the driving circuit; the driving circuit is connected with one end of the volute spiral spring and is used for receiving the first control signal or the second control signal and acting to drive the volute spiral spring to be tensioned or loosened; and the other end of the volute spiral spring is connected with the other end of the traction rope and used for pulling the traction rope. Accurate traction of the injured part is achieved, the manual operation process is omitted, accidental injury is avoided, the use efficiency is improved, and the rehabilitation period of a patient is shortened.

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.

The invention provides a miR-181c-based diabetic fracture repair method and application, and the miR-181c-based diabetic fracture repair method realizes targeted delivery of miR-181c in a fracture microenvironment by using an exosome as a miR-181c delivery carrier, and comprises the following steps: carrying out miR-181c gene overexpression treatment on bone marrow mesenchymal stem cells (BMSCs), extracting the exosome rich in miR-181c, and carrying out miR-181c gene overexpression treatment on the BMSCs to obtain the miR-181c-based diabetic fracture repair method. The miR-181c can be accurately injected to a diabetic fracture area under the guidance of CT, proliferation and differentiation of osteoblasts and angiogenesis are promoted by activating an ERK signal channel at the fracture part, fracture repair is effectively accelerated, healing quality is improved, meanwhile, the fracture microenvironment is optimized by combining with anti-inflammatory factors, and the treatment effect of the miR-181c on the fracture part is improved. The common chronic inflammatory response in the diabetic environment is reduced.