194 results about "Fracture reduction" patented technology

The present invention provides a fracture reduction device, which relates to the technical field of medical devices. The fracture reduction device includes: a fixing frame, a driving mechanism, a proximal traction mechanism and a distal traction mechanism, wherein the proximal traction mechanism and the distal traction mechanism are used to be connected to the proximal end and the distal end of the broken bone respectively; the driving mechanism is connected to the fixing frame; one of the proximal traction mechanism and the distal traction mechanism is connected to the fixing frame, and the other is connected to the movable end of the driving mechanism, and the driving mechanism is used to drive the proximal traction mechanism or the distal traction mechanism connected thereto to move, so that the distance between the distal traction mechanism and the proximal traction mechanism changes. The above device is used to assist in the traction and stretching of the broken bone, and only one operator is required to complete the traction reduction work; when the broken bone is stretched by the driving mechanism, the stretching action is smooth, and the length of the lower limb after reduction can be stably maintained.

The present invention discloses a novel bone transport intramedullary nail, comprising an intramedullary nail main nail, the intramedullary nail main nail is a hollow structure, the intramedullary nail main nail comprises an intramedullary nail proximal end and an intramedullary nail main body, the intramedullary nail proximal end and the intramedullary nail main body are an integrated structure, the intramedullary nail proximal end has a diameter greater than the diameter of the intramedullary nail main body, the intramedullary nail proximal end is provided with a through dynamic screw hole and a static screw hole, an adjustment hole is provided on the intramedullary nail main body away from the intramedullary nail proximal end, a dynamic bone screw is installed in the dynamic screw hole, the dynamic bone screw can move axially along the dynamic screw hole, a tail cap is installed on the proximal side of the intramedullary nail, an elastic body 1 is provided between the tail cap and the dynamic bone screw, and a bone transport device for adjusting the movement of the fracture end is provided on the intramedullary nail main body. The elastic device can give stress stimulation to the bone segment, avoid stress shielding, accelerate fracture healing, reduce delayed fracture healing and non-union, and reduce the incidence of re-fracture after removing the intramedullary nail.

A fracture reduction mechanism for minimally invasive pelvic fracture surgery, comprising a support assembly, a drive assembly, a self-rotating clamping assembly, and a healthy side fixation assembly, wherein the drive assembly comprises a synchronous rotation module (21), a first ball screw module (22), a second ball screw module (23), a third ball screw module (24), and an arc guide rail module (33); the mechanism forms a frame-like closed structure through connection with an operating table (1) via bedside rails (2) on both sides of the operating table (1), the support assembly and healthy side fixation assembly are slidably connected with the bedside rails (2). By manually adjusting the linear movement distances and fixed-axis rotation angles of the above mechanism, six degrees of freedom translation and rotation of the pelvic fracture block can be achieved. The mechanism features high rigidity and load-bearing capacity, good portability, simple assembly and operation, high motion precision, and its motion center is a virtual point in space, the position of which can be adjusted according to patient position and fracture type, providing convenience for surgery.

The utility model discloses an orthopedic nursing traction support, which relates to the technical field of medical instruments, and comprises a bracket, an adjusting pad is arranged on one side of the bracket in a sliding and penetrating manner, the other side of the bracket is fixedly connected with a stand column, the bottom of the bracket is fixedly connected with an assembly block, and the lower end of the assembly block is provided with a first hydraulic oil cylinder. By means of the assembling block and the connecting shaft, the angle of the extension rods on the two sides is adjusted, the fixing device is suitable for patients of different body types, after the feet of the patients are fixed to the fixing base, the stability of the position of the fracture broken end can be maintained, shortening and displacement of the fracture broken end are overcome, fracture reduction is more accurate, and during follow-up rehabilitation training, the rehabilitation training efficiency is improved. The position of the sliding seat on the extension rod can be adjusted, the knee joint is driven to be bent in cooperation with rotation of the extension rod, and the provided traction force assists in functional exercise of limbs, promotes blood circulation, prevents amyotrophy and joint stiffness and accelerates recovery of limb functions.

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.

In one example a method of fracture reduction includes imaging, intraoperatively, a fractured bone of a patient to obtain a first representation of the fractured bone in a computing system. The fractured bone defines at least a first bone fragment, and a second bone fragment that is separated from the first bone fragment by a fracture. The method includes imaging, intraoperatively, a contralateral bone of the patient to obtain a second representation of the contralateral bone in the computing system. The method includes generating, intraoperatively in the computing system, a mirrored representation of the first representation or the second representation. The first representation is compared to a representation of a desired orientation of the fractured bone, where the representation of the desired orientation is the mirrored representation of the second representation. Alternatively, the mirrored representation is compared to the representation of the desired orientation of the fractured bone, where the representation of the desired orientation is the second representation.

The invention relates to the field of orthopedic treatment instruments, in particular to a multi-dimensional angle adjustable three-dimensional fracture reduction traction device which comprises a leg supporting mechanism, a traction mechanism and a traction mechanism. The traction mechanism is used for traction of the calcaneus of the patient; the bracket mechanism is used for mounting the leg support mechanism and the traction mechanism; the support mechanism comprises two sets of telescopic support assemblies used for being installed on a sickbed, and further comprises a first transverse rod and a second transverse rod which are arranged between the two sets of telescopic support assemblies, and locking assemblies arranged on the telescopic support assemblies. The locking assembly comprises a locking piece arranged on the telescopic support assembly and an anti-falling fine adjustment piece arranged on the locking piece. The multi-dimensional angle fracture traction device solves the problems that when the height of an existing multi-dimensional angle fracture traction device is adjusted, adjustment is tedious, patient adaptability is poor, and due to the fact that the adjustment stability is insufficient, accidental movement or falling is likely to happen.

The present application discloses a robot-assisted fracture reduction path planning method and system, which are applied to the field of fracture reduction technology. The method includes: acquiring CT data of a patient; segmenting, reconstructing and planning target positions of the CT data to obtain initial position data and target position data corresponding to the broken bone; calculating the position difference and posture difference between the initial position data and the target position data; using the initial position data and the target position data to form a six-dimensional vector as a sampling point, performing fracture reduction path planning to generate a final path; and optimizing the final path through a path post-processing algorithm.

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 utility model discloses a fracture reduction component for a pedicle screw. The fracture reduction component comprises the pedicle screw, the left side of the screw body assembly is fixedly connected with the right side of the reduction pedicle screw, the screw body assembly comprises an inner stud and a first screw arm, and the right side of the inner stud is fixedly connected with the first screw arm; and the left side of the breaking assembly is fixedly connected with the right side of the first nail arm. The fracture piece and the V-shaped fracture opening are used in cooperation, the fracture groove is pre-opened, so that the connecting face of the fracture groove is smaller, meanwhile, cut-off vibration is reduced, secondary injury to a patient after a product is fractured is effectively prevented, the fracture opening is matched with installation equipment needed in the operation process of the reduction pedicle screw, the screw body is made of stainless steel, and the fracture groove is not prone to falling off. The reduction pedicle screw has good biocompatibility and oxidation resistance and is relatively low in price, alloy steel has high strength and corrosion resistance, postoperative complications can be reduced, and the practicability of the reduction pedicle screw is improved.

An orthopedic repair system includes a bone plate and an alignment template. The alignment template includes a bone-facing lower surface, an upper surface opposite the lower surface, and a cavity extending inwardly from the lower surface towards the upper surface. The cavity is configured to receive the bone plate. The cavity includes a wall corresponding to a side surface of the bone plate such that the wall closely surrounds the bone plate and the bone plate moves either one of or both longitudinally and laterally with the alignment template when the bone plate is received in the cavity. The alignment template includes a radiolucent main body and a radiopaque outer portion extending around the main body.

The present invention discloses a fine reduction instrument for metacarpal and phalangeal fractures, belonging to the technical field of fracture reduction. The instrument comprises a first handle, and a second handle is hinged on the first handle, and a pressing ring is fixedly installed on the first handle and the second handle. Through the cooperation of the spiral groove and the thin rod, when the initial clamping is completed, the hand of the medical staff is out of contact with the elastic pad on the second handle, at which time the first spring stretches and drives part of the thin rod to insert into the spiral groove. Since the linkage block is fixedly connected to the second handle, the user can then rotate the horizontal rod. During the rotation of the horizontal rod, the second handle is driven to rotate slightly around the hinge point through the spiral groove, the thin rod, the mounting plate, and the mounting block, so that the clamping assembly can be fine-tuned. After the patient's bones are initially fixed, the medical staff can immediately fine-tune the arc of the patient's clamping, which can improve the clamping effect while reducing the fine-tuning time, thereby reducing the patient's surgical risk.

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 ulna and radius splint comprises a plurality of bonesetting plates, the bonesetting plates are provided with belt holes, the adjacent bonesetting plates are connected in series through the belt holes and soft belts to form a multi-grid-shaped conjoined body, each bonesetting plate comprises an ulna inner plate, an ulna plate, an ulna outer plate, a radialis outer plate, a radius plate and a radialis inner plate which are arranged in sequence, and further comprises a bone separating column which is of a triangular prism structure. The bone separation column is provided with a V-shaped working surface and a second surface, the bone separation column comprises a first bone separation column and a second bone separation column, in a working state, the first bone separation column is arranged between the ulnar outer plate and the radial outer plate, and the second bone separation column is arranged between the ulnar inner plate and the radial inner plate. The invention has the following advantages: 1, the fracture reduction positioning accuracy is high; 2, the positioning stability is high; and 3, fracture healing is facilitated. And 4, the fixing and treatment effects can be improved through the personalized customized bone separation columns.

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 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.

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.

A fracture reduction tool for performing bone fracture reduction is disclosed herein. In one example, the fracture reduction tool includes a first baseplate, a second baseplate, and a flexible linker coupled between the first baseplate and the second baseplate, wherein the flexible linker comprises a gooseneck component configured to move and bend in multiple degrees of freedom.

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 invention relates to the technical field of orthopedic nursing, and discloses a traction supporting device for orthopedic nursing, which comprises a traction bed main body, one side of the traction bed main body is fixedly connected with a traction bed plate, and the top of the traction bed main body is provided with a traction assembly. A driving motor is started to drive a first rotating shaft to rotate, the first rotating shaft rotates to drive a third connecting plate to move through a series of transmissions, and the third connecting plate can abut against the bottom of a balancing weight on the other side after moving, so that the balancing weight is effectively supported, and weight increase is reasonably controlled; therefore, for a muscle-developed or obese patient, overlapping displacement force generated by muscle contraction can be overcome by gradually increasing the weight, fracture reduction is accelerated more quickly, and the stability of the traction device is maintained.

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.