51 results about "Plate fixation" patented technology

To provide a fracture treatment fixation device for femoral fractures, enabling further reliable treatment of fractures of proximal femur.SOLUTION: A fracture treatment fixation device for treating femoral fractures includes: an intramedullary nail to be inserted into a femoral cavity; a lag screw disposed to penetrate the intramedullary nail diagonally upward and entering a femoral head and a femoral neck; an anterior wall plate to be applied to an anterior wall of a femoral trochanter; and an anterior wall plate fixation pin disposed to penetrate the intramedullary nail and secure the anterior wall plate to the anterior wall of the femoral trochanter.SELECTED DRAWING: Figure 1

[Solution] An expandable intervertebral spacer system has upper and lower plates forming a cage. The top, bottom, and sides of the cage have openings for receiving bone graft material. At least one angled section extends from the upper or lower plate into the cage. The upper and lower plates are connected to each other by a hinge at the proximal end of the cage. The cage is expanded by inserting a push rod from the proximal end of the cage against the angled section, forcing the upper and lower plates apart at a desired angle. A locking mechanism at the distal end of the cage uses a ratcheting mechanism to secure the plates apart. In this ratcheting mechanism, a torsion spring biases a movable strut against a fixed strut, which cooperates with sawtooth engagement on the movable and fixed struts to secure the upper and lower plates apart.

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.

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.

Periprosthetic bone fixation plates are disclosed including, for example, periprosthetic proximal femur plate, periprosthetic distal femur plate, periprosthetic humerus plate, periprosthetic ring plate, and periprosthetic troch plate. In use, the periprosthetic bone fixation plates are arranged and configured for use in periprosthetic fractures. That is, the periprosthetic plates include one or more features to facilitate positioning and securement of the bone fixation plate to a patients bone that previously received a surgically implanted orthopedic device or implant such as, for example, an intramedullary nail, a hip prosthesis, a knee prosthesis, etc. In use, the one or more features are designed and configured to facilitate avoidance of the previous surgically implanted orthopedic device or implant. In addition, the periprosthetic bone fixation plates are arranged and configured to facilitate plating of a longer working length as compared to existing bone fixation plates (e.g., plating from, for example, femoral condyle to greater trochanter).

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

The invention relates to a steel structure connecting piece easy to install and discloses a connecting piece for connecting an original steel plate fixing plate and a connecting steel plate fixing plate through fixing bolts and adjusting the installation angle by rotating a rotating supporting body in a rotating body containing groove. Which comprises a main body structure block, a rotating assembly and a supporting assembly, and is characterized in that the main body structure block is of a rectangular structure, the rotating assembly is arranged on the main body structure block, the supporting assembly is arranged on the main body structure block, and an original steel plate containing groove is formed in one end of the main body structure block; the length of the original steel plate containing groove is one third of the length of the main body structure block, and the original steel plate containing groove and the main body structure block are integrally formed.

The utility model relates to a steel plate fixer for a liquid seal groove, which comprises a transverse plate and fixing frames, the two ends of the transverse plate are respectively provided with one fixing frame, a clamping groove for clamping a steel plate is formed between the fixing frames and the transverse plate, the fixing frames and / or the transverse plate are / is provided with bolts for locking the steel plate in the clamping groove, the transverse plate is provided with a hanging assembly, and the hanging assembly is provided with a fixing frame. The steel plate clamping device comprises a steel plate and a transverse plate, the steel plate is arranged in a clamping groove formed by the fixing frames and the transverse plate through bolts, the hanging assembly is arranged between the two fixing frames, and the transverse plate is fixedly installed on a cofferdam of a liquid seal groove through the hanging assembly. The steel plate clamping device has the advantages that the steel plate is locked in the clamping groove formed by the fixing frames and the transverse plate through the bolts, so that rigid connection is formed between the steel plate and the clamping groove; therefore, displacement of the steel plate in the horizontal direction and the vertical direction is effectively limited, the steel plate can be kept stable in the working environment, and therefore the probability that the steel plate shakes and welding spots of the steel plate crack is reduced.

The invention discloses a bone surgery steel plate fixing auxiliary device, and relates to the field of medical instruments, the bone surgery steel plate fixing auxiliary device comprises a fixing seat and an adjusting mechanism movably arranged at the bottom end of the fixing seat and used for adjusting the clamping distance, clamping mechanisms used for clamping bones are symmetrically arranged at the bottom end of the fixing seat in a sliding mode, and an opening and closing mechanism is fixedly arranged on one side of each clamping mechanism; fixing mechanisms for fixing a steel plate are symmetrically and movably arranged on one side of the opening and closing mechanism, and a centering sleeve rod for centering the steel plate is fixedly arranged in the middle of the bottom end of the adjusting mechanism; the centering sleeve rod penetrates through the center of the steel plate, so that the center of the steel plate is aligned with the center of a skeleton; the clamping plate is driven by the third spring to provide reverse clamping force, and the steel plate is stably and centrally clamped by combining the silica gel pad; the steel plate slides down to the bone surface and is attached to the bone surface in cooperation with opening and closing of the check blocks, the problems that in a traditional operation, the steel plate is prone to deviating from the center and attaching is inaccurate are solved, the repeated adjustment and X-ray perspective times in the operation are reduced, and the radiation risk is reduced.

The utility model discloses a split mounting type swivel spherical hinge, and relates to the technical field of swivel spherical hinges. Comprising an upper spherical hinge assembly, a lower spherical hinge assembly, a sliding plate, an embedded steel plate, an anchoring assembly and a leveling mechanism, annular and radial stiffening ribs are arranged on the top face of the upper spherical hinge assembly, the bottom face of the upper spherical hinge assembly is an arc face, the top face of the lower spherical hinge assembly is a concave arc face, and the upper spherical hinge assembly is rotationally connected with the lower spherical hinge assembly; the sliding plates are distributed between the upper spherical hinge assembly and the lower spherical hinge assembly, the pre-embedded steel plate is composed of a plurality of steel plate fragments, the pre-embedded steel plate is fixedly connected to the bottom of the lower spherical hinge assembly, a plurality of grouting holes are formed in the pre-embedded steel plate, the anchoring assembly is fixedly connected with the pre-embedded steel plate, and the grouting holes are formed in the anchoring assembly. And the leveling mechanism is arranged on the embedded steel plate. The utility model is used for solving the problems in the aspects of processing, transportation and hoisting, improves the construction efficiency, and ensures that the concrete is poured compactly and the bearing capacity is improved.

The invention provides a cancellous bone internal fixing device, and belongs to the technical field of medical instruments. Comprising a fixing steel plate, a plurality of screw holes and a plurality of positioning holes are formed in the outer wall of the top of the fixing steel plate, and the screw holes and the positioning holes are distributed in a linear array mode; and the guide assembly is used for guiding the hollow self-drilling screw, and the guide assembly is connected with the fixed steel plate. By arranging the guiding assembly, the hollow self-tapping screw can be guided, the situation that the fixing effect of the hollow self-tapping screw on the fracture position of a patient is affected due to the fact that the hollow self-tapping screw deviates out of the designated position of preoperative evaluation in the screwing-in process is avoided, the hollow self-tapping screw can be held in the guiding process, and the fracture position of the patient is not affected. In this way, the situation that the screw head protrudes due to inclination, skin irritation is caused, and then postoperative recovery is affected can be avoided.

The utility model relates to the field of external fixators, and discloses a fibula unilateral external fixator which comprises a threaded column, the upper end of the outer surface of the threaded column is sleeved with an upper nut in a threaded mode, the middle of the outer surface of the threaded column is sleeved with a clamping block in a threaded mode, and a clamping groove is formed in one side of the lower end face of the clamping block. The lower end of the outer surface of the threaded column is sleeved with a lower nut in a threaded mode. In the utility model, in a surgical operation, a steel plate is usually used for treating a fracture through a screw, and the steel plate is fixed on a skeleton through a screw to provide stable support and promote the healing of the fracture, but the screw steel plate needs to be disassembled after being used, and meanwhile, the screw steel plate possibly causes injury to a patient when being disassembled; when the fibula unilateral external fixator is used, external fixation is convenient, the broken end of the fibula can be reset through a small incision or closing, the outer surface of the threaded column is sleeved with the upper nut and the lower nut, and the positions of the clamping block and the clamping piece can be adjusted when the upper nut and the lower nut are rotated.

The utility model discloses a kind of steel structure roof lays color steel plate fixing device, its technical solution main point is: including first mounting plate, the side of the first mounting plate is provided with second mounting plate, the side fixed mounting of the first mounting plate has first connecting pipe, the side fixed mounting of the second mounting plate has two second connecting pipes, rotating shaft is sleeved in the inside of the first connecting pipe, the first mounting plate and the second mounting plate are sleeved together by the first connecting pipe, the second connecting pipe and the rotating shaft, the outer wall surface of the rotating shaft is equipped with two clamping grooves, the inside clamping of the clamping groove is limited to sleeve, by setting rotating shaft, cooperation between first connecting pipe and second connecting pipe can be achieved, so that the angle between first mounting plate and second mounting plate can be adjusted at any time, not only can be adapted to different length color steel plate, in response corner position also can adjust the angle of first mounting plate and second mounting plate and be fixed.

The steel plate fixing structure comprises a steel plate, a screw I and a combined screw, the screw I penetrates through the steel plate to be fixed to a non-fracture area of a bone, the combined screw is fixed to a fracture area of the bone, the combined screw comprises a screw II and a screw III, a threaded hole is formed in the implantation end of the screw III, and the steel plate is fixed to the steel plate. The implanting end of the screw II is connected with the screw III through the threaded hole, the screw II and the screw III are connected in a cross mode in a fracture area to form a vertical cross fixing structure, the steel plate is made of stainless steel or titanium alloy, and a fixing hole I, a fixing hole II and a fixing hole III are formed in the steel plate. The combined screws are combined in a fracture area to form a vertical crossing fixing structure, under the condition that the steel plate does not support lateral bone defects sufficiently, the occurrence rate of bending and breaking of the steel plate is reduced through the implanted combined screws, and the steel plate has the advantages of being convenient to operate, safe, effective and widely suitable for orthopedic surgery, and firm internal fixation of the orthopedic surgery is achieved.

The buckling type steel plate fixing structure comprises an implantation screw implanted into a spine bone, a connecting base is arranged at the upper end of the implantation screw, the connecting base is connected with a steel plate connecting frame, the connecting base is inserted into a mounting hole formed in the steel plate connecting frame, and the steel plate connecting frame is connected with the implantation screw. Every two adjacent steel plate connecting frames in the front-back direction are connected through a connecting steel plate, a connecting rod is installed between every two adjacent connecting steel plates in the left-right direction, a spherical connector is fixedly installed at the upper end of the implanted screw, the implanted screw is rotationally connected with the connecting base through the spherical connector, and two symmetrical fixing grooves are formed in the outer side of the connecting base. According to the buckling type steel plate fixing structure used after the minimally invasive spine surgery, the novel structural design is adopted, a buckling type connecting structure is adopted between the steel plate connecting frame and the connecting base where the screw is implanted, traditional bolt fixing is replaced, operation is more convenient and faster, and therefore the whole surgery time is shortened, and the surgery risk is reduced.

The application discloses a steel plate fixing auxiliary device for bone surgery and relates to the field of medical instruments, which comprises a fixing seat and an adjusting mechanism movably arranged at the bottom end of the fixing seat and used for adjusting the clamping distance, the bottom end of the fixing seat is symmetrically provided with clamping mechanisms used for clamping bones and slidably arranged, one side of each of the clamping mechanisms is fixedly provided with an opening and closing mechanism, one side of the opening and closing mechanism is symmetrically movably provided with a fixing mechanism used for fixing a steel plate, and the bottom end of the adjusting mechanism is fixedly provided with a centering sleeve rod used for centering the steel plate; the centering sleeve rod penetrates the center of the steel plate, the center of the steel plate is aligned with the center of the bone, the reverse clamping force is provided by the spring three-drive clamping plate, the steel plate is stably clamped in the middle in combination with the silica gel pad, the steel plate is opened and closed in cooperation with the stopper, the steel plate slides downward to the bone surface and is attached, the problems that the steel plate is prone to deviating from the center and is not accurately attached in traditional surgery are solved, the number of times of repeated adjustment and X-ray perspective in surgery is reduced, and the radiation risk is reduced.

A maxillofacial device includes a substructure with a shape that is custom made to a patient's maxillofacial area; a framework coupled to the substructure, the framework and substructure being made of a single continuous material or a combination of materials, the framework having a plurality of grid elements; and one or more plate fixations coupled to the substructure. The framework has a shape that is custom made to fit the patient's maxillary sinus area. The framework is configured to be surrounded by a bone graft material, wherein the substructure and framework provide rigidity and stiffness for the bone graft material.

A maxillofacial device includes a substructure with a shape that is custom made to a patient's maxillofacial area; a framework coupled to the substructure, the framework and substructure being made of a single continuous material or a combination of materials, the framework having a plurality of grid elements; and one or more plate fixations coupled to the substructure. The framework has a shape that is custom made to fit the patient's maxillary sinus area. The framework is configured to be surrounded by a bone graft material, wherein the substructure and framework provide rigidity and stiffness for the bone graft material.

The utility model discloses an acetabulum posterior wall fixing steel plate which comprises a steel plate body and extending parts, the shape of the steel plate body is matched with the shape of the acetabulum posterior wall, steel plate fixing nail holes are evenly formed in the surface of the steel plate body, and the extending parts are detachably arranged on the upper end face and the lower end face of the steel plate body. And an extension part fixing nail hole is formed in the surface of the extension part. The problem that the size of an existing acetabulum posterior wall fixing steel plate cannot be conveniently adjusted according to the bone size of a patient is solved.

The present application relates to an adjustable fully-flexible loop plate fixation apparatus, which comprises a fixation loop, a fixation loop ring, and a traction wire, and the three components are all flexible braided fabric. The traction wire passes through the middle and both sides of the fixation loop to form a surrounding tightening structure and extends at one side of the fixation loop to form an 8-shaped adjustable coil, wherein the 8-shaped adjustable coil has an anti-reverse and self-penetrating structure. The surrounding tightening structure and the 8-shaped adjustable coil jointly form the fixation loop ring.

According to an embodiment of the present disclosure, a bone fixation system includes an intramedullary nail and a bone plate. The plate body can be subdivided into different regions, including but not limited to a mid-shaft region and a proximal shaft region. The mid-shaft region and the proximal shaft region optionally have different widths and / or thicknesses in order to increase flexibility of the bone plate. The bone plate defines one or more plate fixation holes, which may be bone fixation holes. The plate fixation holes extend from the outer surface to the bone-facing surface, and are configured to receive various fixation members for affixing the bone plate to the IM nail and / or to the bone. One or more of the plate fixation holes are connected to the bone plate via protruding tabs, such that the plate fixation holes are separate from, yet connected to, the bone plate.

The invention relates to the technical field of surface treatment devices, one embodiment of the invention provides a steel plate surface treatment device which comprises placing frames, plate overturning assemblies, an overturning box, a plate fixing assembly and a relative moving assembly, the two placing frames are fixedly installed at the top end of a treatment table, and the two plate overturning assemblies are arranged at the top end of the treatment table; the two plate overturning assemblies are arranged on the processing table, the two overturning boxes are arranged on the two plate overturning assemblies correspondingly, the two plate fixing assemblies are arranged on the overturning boxes and used for fixing the steel plates in the overturning boxes, and the relative moving assembly is arranged on the side face of the processing table and used for driving the two overturning boxes to move oppositely or reversely, so that the steel plates are placed on the containing frame. By means of the technical scheme, the technical problem that in the prior art, after one face of a steel plate is sprayed, workers need to manually carry and rotate the steel plate, and then the other face of the steel plate is sprayed, and labor is wasted is solved.

The utility model discloses a steel plate dadoing pressing device which comprises a working table, a plurality of length-direction fixing assemblies used for fixing a steel plate on the working table are evenly arranged on the long side of the upper surface of the working table, and at least one width-direction fixing assembly used for fixing the steel plate on the working table is arranged on the short side of the upper surface of the working table. A dadoing assembly is slidably arranged on the upper surface of the workbench in the extending direction of the workbench, and a plurality of length-direction positioning blocks matched with the length-direction fixing assemblies in position and a plurality of width-direction positioning pins matched with the width-direction fixing assemblies in position are arranged on the upper surface of the workbench. The groove planing machine has the beneficial effects that the groove planing machining of a traditional plate can be efficiently completed without manual participation.

The utility model discloses a door nail system for supporting a distal radius watershed bone block. The door nail system comprises a fixing steel plate, a plurality of U-shaped kirschner wires, a plurality of forcing screws and a plurality of fixing screws. The fixed steel plate comprises a head part, a middle part and a tail part; a plurality of first kirschner wire holes and a plurality of first screw holes are formed in the head part in a penetrating manner; a plurality of second screw holes are formed in the fixing steel plate from the middle to the tail in the vertical direction at intervals, and each fixing bolt penetrates through one second screw hole to fix the fixing steel plate to the radius of the human body; the two vertical ends of each U-shaped kirschner wire penetrate through the two first kirschner wire holes and are driven into the far end of the radius of the human body, the middles of the two vertical ends of each U-shaped kirschner wire are bent, and the bent U-shaped transverse end is fixedly connected into one first screw hole through a forcing screw. According to the utility model, the problem of distal fracture recovery and fixation of the radius'watershed 'can be solved, and the distal end of the radius obtains the pressure close to the wrist joint, so that the effective, lasting and firm fracture fixation effect is obtained.

The application discloses a high-pressure gas chamber sealing steel plate fixed mounting structure, through the sliding cooperation of the transverse shaft arranged in the mounting frame sliding groove and the movable matching block, an operator can easily push the movable matching block and the steel plate connected with the movable matching block in the horizontal direction, transverse fine adjustment of the steel plate mounting position is realized, through the height adjusting structure, only the bottom knob needs to be rotated, the vertical rotating shaft can be driven to rotate, the meshing of the I-shaped matching block and the threaded groove drives the I-shaped matching block to move up and down in the vertical direction (Z axis), so that stepless and fine adjustment of the steel plate mounting height is realized.

The invention discloses an umbrella rib titanium plate fixing and implanting system, and relates to the technical field of medical instruments. The umbrella rib titanium plate fixing and implanting system comprises an outer pipe, one end of the outer pipe is provided with a plurality of containing grooves in the axial direction of the outer pipe, and the other end of the outer pipe is sleeved with a handle; the installation assembly is detachably arranged at the end of the outer tube, two through holes are formed in the installation assembly, sutures are bound to the through holes, one end of each suture penetrates through one through hole, the other end of each suture penetrates through the other through hole, and the end of each suture is located in the handle; the umbrella ribs are arranged on the mounting assembly through the rotating assembly, the number of the umbrella ribs is the same as that of the containing grooves, and the umbrella ribs are located in the containing grooves; the driving assembly is used for driving the umbrella ribs to be unfolded to the outside of the containing groove. Compared with existing fracture fixation, the steel plate does not need to be preliminarily fixed through a kirschner wire or a screw, the steel plate does not need to be fixed to the bone through the screw either, and therefore the fixation effect of the fracture position is improved.

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

The utility model discloses an embedded part welding device with a deformation correction function, and relates to the technical field of mechanical design, the embedded part welding device comprises a supporting mechanism, the supporting mechanism comprises a connecting plate, and the outer wall of the connecting plate is fixedly connected with a plurality of supporting columns. A motor is started to drive a rotating shaft to rotate, a threaded rod is fixed to the surface of the rotating shaft and can be driven to rotate, meanwhile, a rotating wheel is fixed to the outer wall of the rotating shaft and connected with a belt wheel through a belt, the belt wheel is connected with the rotating shaft on the other side, and therefore moving blocks on the two sides of the device move along the surface of the threaded rod at the same time; and meanwhile, a plurality of pressing plates connected in a moving block can extrude a plurality of connected springs to release pressure after being in contact with the steel plate, so that the steel plate is fixed more stably, the outer side part of the steel plate is flattened through movement of the pressing plates, and the situation that the overall effect after welding is affected due to the fact that the side edge of the steel plate possibly tilts up is prevented.

The utility model relates to a water stop steel plate fixing device. The water stop steel plate fixing device comprises a water stop steel plate, clamping and fixing ribs, supporting and positioning ribs and longitudinal steel bars. The longitudinal steel bars are installed on the two sides of the shear wall. The clamping bars are installed on the longitudinal steel bars, and clamping grooves used for installing the bent parts of the water stop steel plates are formed in the middles of the clamping bars. The supporting and positioning rib is mounted between the clamping and fixing rib clamping groove and the water stop steel plate bending part; the clamping and fixing ribs, the supporting and positioning ribs and the longitudinal steel bars are symmetrically arranged on the two sides of the waterstop steel plate, two or more pairs of clamping and fixing ribs and supporting and positioning ribs are arranged in the installation direction of the waterstop steel plate, and the waterstop steel plate is fixed to the shear wall. According to the scheme, the waterstop steel plate can be fixed and positioned through the clamping and fixing ribs and the supporting and positioning ribs, the clamping and fixing ribs and the longitudinal steel bars do not need to be fixedly connected, the waterstop steel plate cannot be damaged, workers do not need to continuously lift the waterstop steel plate and conduct welding, and the installation efficiency of the waterstop steel plate is effectively improved.

The application discloses an open osteotomy support measuring device, which can accurately ensure the distance and angle of the osteotomy gap, thereby ensuring the final steel plate fixing accuracy. In specific use, the device is directly embedded into the gap at the osteotomy site, then the second sliding block is driven to slide on the second sliding rail through the driving component, so as to drive the first sliding block to move on the first sliding rail, thereby increasing the angle of the second support plate relative to the first support plate, so that the first support plate and the second support plate abut the two side bone walls of the gap respectively, preventing the two side bones of the osteotomy site from approaching each other, thereby ensuring that the size and angle of the osteotomy gap remain stable at all times, thereby improving the final steel plate fixing accuracy. After the steel plate is fixed, the second sliding block is reversely driven to slide through the driving component, so as to reduce the angle of the second support plate relative to the first support plate, and the device can be taken out from the gap at the osteotomy site.