99 results about "Fracture reduction" patented technology

The invention provides an asymmetric six-degree-of-freedom parallel fracture reduction surgical robot and a control method thereof, and relates to the technical field of medical instruments.The robot comprises a clamping assembly and a parallel posture adjusting mechanism, and the parallel posture adjusting mechanism comprises a movable platform, a fixed platform and a plurality of PUS motion branch chains connecting the movable platform and the fixed platform; each PUS motion branch chain comprises a driving module, a connecting rod and a joint seat, the moving end of the driving module is slidably connected with the fixed platform through a first moving pair, the fixed end of the driving module is connected with the first end of the connecting rod through a universal pair, and the second end of the connecting rod is connected with the joint seat through a ball pair; movement and rotation of the positioning needle in the X, Y and Z directions are achieved through the parallel posture adjusting mechanism, and therefore the angle and the position of the positioning needle are adjusted. The movement precision of the positioning needle is effectively improved, the weight and the size of the robot are effectively reduced while the large working space is considered, and the flexibility, the rigidity and the movement precision are improved.

The invention discloses a simulated training device for bending and setting a human forearm bone, and relates to the technical field of limb rehabilitation training, the simulated training device comprises a forearm extension plate and a big arm extension plate which are respectively extended and fixed at the end parts of a forearm sheath and a big arm sheath, and the simulated training device realizes passive bending and stretching between a big arm and a small arm through force generated by other positions of a patient; according to the analysis from the neural reaction level, the time of triggering a pain protection mechanism at a wound of a patient is prolonged by utilizing passive power generation of an organism (because the thinking of the patient stays at the wound all the time when the patient autonomously generates power, the brain is in a reaction waiting state, and the patient can immediately make a response once feeling pain occurs; and the brain of the patient is not in a waiting state during passive power generation, and the patient cannot quickly respond even if the patient feels painful, so that the protection reaction time is delayed to a certain extent, and even if the final body still makes a deliberate terminating action, the large and small arms are bent and stretched in a prolonged time).

This invention discloses a long bone fracture robot, relating to the field of medical robot technology. The robot includes an upper fixation ring, a lower fixation ring, and six sets of sliding components connected between them. These six sets of sliding components are spatially distributed and form a parallel mechanism. Each sliding component includes a lead screw assembly and a drive assembly. The lead screw assembly includes a lead screw and at least one U-shaped joint, with the U-shaped joint connecting the end of the lead screw to the corresponding fixation ring. The two rotation axes of the U-shaped joint maintain a non-compatibility distribution structure with a preset distance in space to increase the joint's swing angle range and improve multi-directional load-bearing capacity. The drive assembly converts the rotational motion of the motor into the linear motion of the lead screw through gear transmission, realizing the extension and retraction of the sliding components. This invention can avoid unusual configurations within a larger workspace, providing safer, more precise, and more efficient assistance in fracture reduction surgery.

The present application provides new and innovative anterior clavicle plates and systems for clavicle fracture fixation. The provided anterior clavicle plate is shaped to better conform to or fit the anterior and lateral surfaces of a patient's clavicle as compared to typical anterior clavicle plates. This improved conformance can help reduce the incidence of tissue irritation, which reduces the chances of a second surgery being needed for removal of the anterior clavicle plate. The improved conformance can also result in an anatomically better fracture reduction than typical anterior clavicle plates and an increased fixation strength. Additionally, an instrument provided by the present application can help a surgeon install the provided anterior clavicle plate more quickly and with increased flexibility and consistency than typical systems.

The application is suitable for the technical field of medical devices, and provides a bone fracture reduction device, which comprises a linear motion mechanism, a parallel mechanism and a fixing part. The parallel mechanism comprises a first motion assembly, a second motion assembly and a third motion assembly, and the first motion assembly, the second motion assembly and the third motion assembly are all installed on the linear motion mechanism. The fixing part is provided with a first connecting end, a second connecting end and a third connecting end. The first motion assembly is movably connected with the first connecting end, the second motion assembly is movably connected with the second connecting end, the third motion assembly comprises a first end and a second end, the first end is movably connected with the linear motion mechanism, and the second end is movably connected with the third connecting end. Through cooperation between the linear motion mechanism and the first motion assembly, the second motion assembly and the third motion assembly, the fixing part has three rotations, three movements and six degrees of freedom, so that the flexibility of the bone fracture reduction device is higher, and the treatment effect is better.

1. The name of the design product: fixation device for orthopedics. 2. The use of the design product: Kirschner wire puncture fixation for fracture reduction treatment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model provides an adjustable fracture reduction instrument, which relates to the technical field of medical instruments and comprises a fracture reduction instrument component, adjusting components are arranged at two ends of the fracture reduction instrument component, a supporting component is arranged at the top of the fracture reduction instrument component, and the fracture reduction instrument component comprises a supporting column. And supporting rings are symmetrically mounted on the outer side of the supporting column. The adjusting rods slide in the two ends of the supporting column by rotating the fastening bolts to be loosened, timely adjustment is facilitated according to the body shape of a patient, when the adjusting rods move to the proper positions, the fastening bolts are rotated, the fastening bolts are connected with the friction pads, the adjusting rods are limited advantageously, and the adjusting effect is improved. The fracture reduction instrument assembly is simple in structure and convenient to operate, can be quickly adjusted to a proper length, accurately meets the surgical operation requirement, further guarantees the fracture reduction accuracy of the fracture reduction instrument assembly, does not need complex tool assistance or long-time cooperation of multiple persons, and improves the reduction accuracy.

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.

This utility model relates to the field of orthopedic medical device technology, specifically to an adjustable drilled plate integrated fixation clamp for long bone fractures. It includes a first clamp body and a second clamp body, which are cross-hinged. The top of the first clamp body has a first clamping part, and the inner surface of the first clamping part has several short pins. The top of the second clamp body has a second clamping part, which includes a fixing plate and a clamping block. The clamping block is slidably connected to the inner side of the fixing plate, and the fixing plate has several through holes. This utility model not only provides stable clamping but also features fracture reduction and fixation, adaptive clamping of multiple types of plates, and drilled screw implantation.

The application discloses a kind of artificial muscle driven hybrid fracture reduction surgery robot, it relates to the technical field of auxiliary operating instrument of medical surgery.The present application solves the problems of the existing fracture reduction surgery robot, such as large volume, small workspace, low integration, weak load capacity, complex control, complex kinematics calculation, and easy to cause rigid impact during movement.The top side of the mounting base is provided with a first and second joint swing arm, the first end of the swing arm connecting rod is provided with a first rotary joint, the left and right ends of the first rotary joint are respectively connected with two first rotary joint rotary traction mechanisms, the bottom of the first rotary joint is connected with the mounting base, the end of the swing arm connecting rod is provided with a second rotary joint, the left and right ends of the second rotary joint are respectively connected with two second rotary joint rotary traction mechanisms, and the second rotary joint, four-chain 2R1T parallel mechanism and end traction platform are sequentially connected.The application is used for fracture reduction surgery.

Orthopedic implants, surgical tools and surgical methods. More particularly, a system for surgical treatment of the elbow region for various fractures. The implants include an assortment of humerus plates, an olecranon plate system, and an elbow stabilization system. In order to assist in surgery, the system includes guides for the humerus, a coronoid fracture reduction clamp and an olecranon osteotomy clamp. Methods of using the various devices are also disclosed.

The utility model discloses an injectable femoral neck hollow nail device, and relates to the technical field of hollow nail devices, the injectable femoral neck hollow nail device comprises a hollow nail main body, the surface of the hollow nail main body is provided with an external thread, the external thread can pass through a femoral neck fracture line, and a sleeve is arranged in the hollow nail main body. The hollow nail main body can penetrate through a femoral neck fracture line through the external threads, so that pressure can be applied to a fracture end during fracture fixation, a fracture part can be promoted to be tightly attached, micro movement of the fracture end is reduced, a stable environment is created for fracture healing, and growth and healing of callus at the fracture part are facilitated; meanwhile, when the fracture position of the patient is fixed through the hollow nail body, the strength of the hollow nail body can be improved through the sleeve, red marrow and the like can be conveyed through the sleeve, fracture healing is facilitated to be promoted or accelerated, and the risk of internal fixation failure is reduced.

1. The name of the design product: reset device. 2. The use of the design product: with handle fast installation, used for fracture reduction in orthopedic surgery. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

The invention discloses an electric fracture reduction ejector rod. The ejector rod at least comprises a supporting rod and a push-pull chuck arranged at the front end of the supporting rod. The push-pull chuck is composed of a base plate fixed to the front end of the supporting rod and a movable plate which is movably arranged at the front end of the push-pull chuck and can move in the axial direction of the supporting rod. When the movable plate is tightly attached to the base plate, the push-pull chuck forms a pushing face, and the pushing action is achieved. When the movable plate is separated from the base plate, the push-and-pull chuck can achieve clamping, pushing and pulling actions on bones through opposite clamping of the movable plate and the base plate. The key point of the invention lies in the design of the integrated push-pull chuck, the integration of multiple reset functions such as pushing, pulling, clamping and the like is realized, the replacement of instruments is effectively reduced, and the operation efficiency, accuracy and safety are improved.

The utility model relates to the technical field of medical instruments, and discloses an emergency surgical fracture patient moving device which comprises a placing plate, a sponge pad arranged at the top of the placing plate, a grabbing frame fixedly installed on one side of the placing plate, a leg retracting pad placed at the top of the placing plate, a connecting plate arranged at the bottom of the placing plate, and a base arranged at the bottom of the connecting plate. And an adjusting rod is arranged on one side of the connecting plate. According to the emergency surgery fracture patient moving device, through cooperative arrangement of the placing plate, the sponge cushion and the leg retracting cushion, a fracture patient can be stably fixed to the placing plate, the body and the arms of the patient can be fixed through the elastic belts, and secondary injury caused by shaking or bumping in the transferring process is prevented; the sponge pad can reduce shaking and oppression of the head of the patient with the fracture in the transferring process, the leg retracting pad can ensure that the patient with the fracture of the legs keeps the relative stability of the legs in the transferring process, and friction and movement between the fracture broken ends can be reduced.

1. Name of the design product: fracture reduction machine. 2. Use of the design product: for fracture reduction. 3. Design points of the design product: in the perspective view. 4. Picture or photo best indicating the design points: perspective view.

The invention relates to the technical field of medical instruments, in particular to a bone holder for cheekbone fracture reduction and a robot-assisted cheekbone fracture reduction method. The bone holder for reduction of the fracture of the cheekbone provided by the invention comprises a fixed end which is provided with at least one fixing hole and is used for being rigidly connected with a bone block through a fixing piece; one end of the connecting rod is fixedly connected with the fixed end, and the other end of the connecting rod is provided with a connecting structure used for being detachably connected with the tail end of the mechanical arm; and the plurality of registration points are distributed on the surfaces of the fixed end and the connecting rod and are used for performing intraoperative registration through a registration tool. According to the bone holder, the application scene is widened, a stable and reliable connection mode is provided, and the foundation of high-precision registration is laid.

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 phalanx fracture reduction traction device, and relates to the technical field of orthopedics. An arc-shaped groove is formed in the upper end of the stabilizing block; and a fixing groove is formed in the right side of the stabilizing block. The fingertip position is temporarily fixed through the limiting effect of the positioning groove, fingertip deviation in the traction process is avoided, the telescopic end of the right end of the small electric rod is inserted into the inserting groove of the connecting block, the small electric rod can accurately drive the traction shell to horizontally move, constant-speed controllable traction of the fractured finger is achieved, and the problem that reset traction needs to be conducted on the fractured finger of a patient is solved. Therefore, the fingertips of the fractured fingers need to be stably clamped and stably pulled, otherwise, the fingertips are easy to loosen and shift during clamping, continuous and stable traction force cannot be formed, the reduction and alignment of the fractured ends are inaccurate, the reduction effect is influenced, secondary injury is possibly caused by uneven stress in the pulling process, and the fracture fractured ends cannot be accurately reset. Meanwhile, the pain feeling of the patient is increased.

The present application relates to the medical image processing technical field, specifically to a kind of calcaneus fracture reduction effect dynamic evaluation system based on three-dimensional image.The system obtains the broken bone shape feature of each bone block based on the surface gauss curvature information of bone block, determines the broken bone corresponding to the main bone of fracture by the method of classification and direction correlation analysis, quantifies broken bone index, obtains skeletal region.Using damage eigenvalue, the skeletal region is divided into to-be-registered region and damage region, in combination with the information in damage region, the stress influence direction of to-be-registered region is determined, the extrusion feature and the offset feature of bone block in stress influence direction are obtained, and the initial registration point of bone block is screened out in combination with damage eigenvalue for registration and reduction effect evaluation.The present application classifies the bone block in three-dimensional model effectively, and the initial registration point is screened out for registration by analyzing the situation affected by fracture, so that the registration effect and the accuracy of reduction evaluation are guaranteed.

The invention discloses an intelligent fracture reduction navigation evaluation analysis method and system based on a multi-modal image, and the method comprises the following steps: collecting and preprocessing CT, perspective and ultrasonic images, and reconstructing a bone sheet grid and a fracture surface sheet; constructing a bone sheet-fissure fiber bundle and setting a contact rule; executing multi-order convolution on point, edge and surface units and introducing multi-modal constraints; constructing a broken end pairing graph to determine a reset sequence; solving a reset solution under the constraint of non-interpenetration and normal continuity, and outputting a navigation prompt and a real-time evaluation index. According to the method, cross-modal stable navigation and quantitative evaluation of fracture reduction are realized through bone sheet-fissure fiber bundle modeling, multi-modal constraint convolution and broken end pairing and constraint calculation.

The invention relates to the technical field of medical instruments, and discloses a fracture reduction device which comprises a base, an adjusting ring, an arc-shaped sliding seat, an up-down sliding seat, a first needle clamping device, a fixing assembly, a first adjusting assembly, a second adjusting assembly, a third adjusting assembly and a connecting assembly. A supporting seat is arranged at the far end of the base, the adjusting rings are detachably arranged on the base through the fixing assembly, the multiple adjusting rings are arranged at intervals, and the first adjusting assembly can control the adjusting rings to reciprocate in the length direction of the base; the second adjusting assembly can control the arc-shaped sliding seat to slide on the adjusting ring in a reciprocating mode. The third adjusting assembly can control the up-down sliding base to move up and down. The first needle clamping device is arranged on the up-down sliding seat; after fracture reduction is completed, the connecting assembly can be fixedly connected with all the adjusting rings; according to the invention, the problems of inaccurate mastering of manual moving force and difficulty in fine adjustment can be avoided.

The invention discloses an orthopedic fracture reduction fixator with a fine adjustment mechanism, and relates to the technical field of orthopedic reduction fixators, the orthopedic fracture reduction fixator comprises an adjusting assembly, a supporting assembly and a buffering assembly, the adjusting assembly comprises a first clamping plate and a second clamping plate, and bottom plates are fixedly connected to the bottom ends of the first clamping plate and the second clamping plate; limiting plates are symmetrically arranged on the rear sides of the first clamping plate and the second clamping plate, sliding grooves are formed in the limiting plates on the two sides, locking rotary knobs are installed on the rear sides of the first clamping plate and the second clamping plate on the two sides, and installation holes are formed in the bottoms of the bottom plates on the two sides. Through the design of the adjusting assembly, during fracture reduction, spacing adjustment is achieved through a limiting plate sliding groove, the device can adapt to adults and children, limbs of different thicknesses do not need to be replaced with clamping plates of different specifications, meanwhile, reduction and fine adjustment can be achieved through the design of a sliding groove locking rotary knob, and medical staff can adjust the state of the clamping plates without interrupting reduction operation; the fracture end is always in a controllable range in the reduction process, and the alignment success rate is increased.

A screw clamping device for guiding and reducing of fracture reduction surgery robot in the technical field of medical devices, including basic frame, short lead screw sliding table module, long lead screw sliding table module, side lead screw sliding table module, aluminum profile trolley, universal joint module, holding screw; three short lead screw sliding table modules are connected on the basic frame through angle connectors, the bases of two long lead screw sliding table modules and the base of one side lead screw sliding table module are fixed on the sliding table parts of the three short lead screw sliding table modules through connectors respectively; the other sides of the two long lead screw sliding table modules are connected on two aluminum profile trolleys respectively; three universal joint modules are respectively arranged on the sliding tables of the two long lead screw sliding table modules and the side sliding table module. The universal joint module can move to the designated position in advance without inserting the holding screw, and provides direction guidance for the doctor to implant the holding screw. The device can be used for multiple purposes, and can assist in the two surgical steps of implantation and reduction.

This invention discloses a novel adjustable intramedullary nail, comprising a hollow main nail, a proximal end of the nail, and a main body of the nail, which are integrally formed. The diameter of the proximal end of the nail is larger than that of the main body. Multiple through-holes for dynamic screws are provided at the proximal end of the nail. An adjustment hole is provided on the main body of the nail, away from the proximal end. A dynamic bone screw is installed in each of the dynamic screw holes and can move axially along the holes. A tail cap is installed on the proximal side of the nail, and an elastomer is placed between the tail cap and the dynamic bone screw. An absorbable washer is placed distal to the dynamic bone screw to support it. An adjustment device for adjusting the stress at the fracture ends is provided on the main body of the nail, which can adjust the stress at the fracture ends according to the specific fracture conditions, avoid stress shielding at the fracture ends, accelerate fracture healing, reduce delayed healing and nonunion, and decrease the incidence of refracture after removal of the intramedullary nail.

The invention relates to the technical field of oral and maxillofacial surgical operating instruments, and discloses a mandible condyle fracture precise and reliable reduction combined instrument which comprises a condyle tooth hook, a double-end drag hook, a V-shaped pusher and a large-angle drag hook which are all made of 17-4PH stainless steel. The condylar process tooth hook is of a double-end design, and the double-end draw hook has two working forms. According to the precise and reliable reduction combined instrument for the mandible condylar fracture and the application method, by arranging a special instrument set with the complementary functions of the condylar tooth hook, the double-end drag hook, the V-shaped pusher and the large-angle drag hook, view exposure, soft tissue protection and bone segment reduction and stabilization are all considered, meanwhile, a systematized operation scheme formed by the set instrument is achieved, and the operation efficiency is improved. The whole-course operation from soft tissue exposure to bone segment fixation is covered, the technical blank of the complete set of instruments in China is filled, and the standardization and efficiency of the operation are greatly improved.

This invention discloses an external fixation device for fracture reduction and its manufacturing method. The device includes at least two fixation blocks, each pair connected by a telescopic rod. Each fixation block and the end of the telescopic rod are universally connected, and each fixation block has a threaded pin hole. The telescopic length of the telescopic rod and the rotation angle of each fixation block are determined based on the image data of the affected limb from the pre-placed threaded pin, enabling the external fixation device to guide the reduction and fix the reduced limb. This device provides guidance for manual reduction and fixation after reduction, avoiding unnecessary radiation damage and trauma, while improving the efficiency and accuracy of manual reduction by doctors and enhancing the therapeutic effect of fracture reduction.

The application discloses a planning navigation system for lower limb fracture reduction surgery. The system comprises a medical image processing module for segmenting a proximal bone and a distal bone from a lower limb fracture image and reconstructing a three-dimensional surface model of a broken bone; a surgery planning module for point cloud sampling on the three-dimensional surface model of the broken bone to obtain a corresponding point cloud model; extracting a fracture section from the point cloud model; obtaining a coordinate transformation matrix of an initial position of the distal bone and a target position of the distal bone after reduction by point cloud registration on the fracture section; performing fracture reduction path planning based on the coordinate transformation matrix, the fracture reduction path planning being used for guiding translation and rotation of the distal bone to obtain the target position of the distal bone under the condition that the proximal bone is fixed; and a navigation module for visually displaying a surgery process based on the fracture reduction path planning. The application can improve reduction accuracy, reduce reduction force and reduce soft tissue damage such as muscle damage at a fracture of a patient.