59 results about "Initial fixation" patented technology

The present disclosure discloses a limb bone fixation system capable of automatically transforming from AO (Association for Study of Internal Fixation) to BO (Bio-logical Osteosynthesis) elastic fixation. The system includes a bone nail, a bone bridge, and connecting pieces attached to the bone bridge. The bone bridge is divided into a plate-shaped bone bridge and a rod-shaped bone bridge. A gasket made of a rigid degradable biomaterial is added between all connecting pieces at a broken end of one side of a fracture and the bone bridge, which can form rigid fixation for the fracture at initial fixation.

The invention discloses a titanium-magnesium hollow screw system capable of promoting fracture healing and a manufacturing method. The titanium-magnesium hollow screw system comprises a titanium-based supporting structure and a magnesium filling layer. The titanium-based supporting structure comprises a main body part, the surface of the main body part is provided with an imitated bone trabecula part, and a plurality of bone gaps are formed in the imitated bone trabecula part; wherein bone gaps are filled with the magnesium filling layer, and the magnesium filling layer is combined with the titanium-based supporting structure in a physical embedding mode; the titanium-based supporting structure bears and maintains initial fixation and long-term bearing, so that the strength and the stability of the screw are ensured; the surface imitated bone trabecula and the communicated bone gaps increase the surface area and provide a physical channel for vascularization and bone tissue ingrowth, so that synostosis is promoted; the magnesium filling layer releases magnesium ions after being locally controllably degraded, so that osteogenesis and angiogenesis are favorably stimulated, the local biological environment is improved, instant mechanical support after an operation is ensured, bone healing is promoted through local biological activity release and structural orientation, the healing time is favorably shortened, and the healing quality is favorably improved.

The utility model discloses a car coupler and tail frame free rotation angle and pressure measuring device, which is provided with a scale assembly and a pointer assembly, the axis of an arc-shaped dial of the scale assembly coincides with the axis of a simulation pin column, a pointer of the pointer assembly is positioned in the middle of a car coupler, and the extension direction of the pointer assembly is parallel to the extension direction of the car coupler. The numerical value pointed by the pointer can be directly read, the free rotation angle of the car coupler and the tail frame can be quickly and accurately obtained, other parameters do not need to be measured, and the angle parameters are more accurate; besides, a fixing assembly is arranged, the tail frame is clamped through two clamping plates, the stability of the tail frame in the measuring process is guaranteed, the fixing assembly comprises a first clamping structure and a second clamping structure, preliminary fixing and secondary fixing are achieved, the fixing stability is improved, and it is guaranteed that the tail frame does not shake in the measuring process.

The utility model discloses a glass fiber cloth bag with long service life, which comprises a cloth bag body, a cloth bag lining is arranged on the inner side of the cloth bag body, a supporting structure is arranged on the outer side of the cloth bag lining, a fixing structure is arranged at the top end of the cloth bag body, and the fixing structure comprises a piston ring, a fixing ring, a through hole, a metal ring, a metal plate and a clamping block. A protective structure is arranged on the outer side wall of the cloth bag body. The fixing ring is sewn at the top end of the cloth bag body, the packing rings can be deformed and folded during installation, preliminary fixation is carried out in the mode that the edges of the installation holes are clamped between the two packing rings, the through holes are evenly formed in the fixing ring, the metal rings are fixed to the outer side walls of the through holes, deformation of the through holes can be avoided, and the cloth bag is convenient to install. And after the fixing ring is mounted, the metal plate is mounted at the top end of the fixing ring, so that the fixing ring can be fixed, the falling condition is avoided, and the purpose of preventing the glass fiber cloth bag from falling off during use is achieved.

The invention relates to the technical field of building construction, in particular to a detachable truss rod piece reinforcing device and a construction method thereof.The detachable truss rod piece reinforcing device comprises a split type node reinforcing metal sleeve, the split type node reinforcing metal sleeve is arranged on a transverse rod of a steel truss in a sleeving mode, and the split type node reinforcing metal sleeve is formed by splicing two arc-shaped metal sheets; the two ends of each arc-shaped metal sheet are each fixedly provided with two lug plates a, and the lug plates a on the surfaces of the two arc-shaped metal sheets are connected through high-strength bolts. The split type joint reinforcing metal sleeve has the beneficial effects that the split type design is adopted, the split type joint reinforcing metal sleeve is formed by splicing the two arc-shaped metal sheets, primary fixing is achieved through the high-strength bolt connecting lug plates, and then head-to-tail connection is achieved through the flange plates and the high-strength bolts. By means of the design, when the reinforcing device needs to be maintained or overhauled or the steel truss needs to be transformed, the reinforcing device can be conveniently disassembled and reinstalled, the flexibility and applicability of the device are greatly improved, and the engineering cost and the construction difficulty are reduced.

This invention discloses a livestock and veterinary quarantine and testing device, relating to the field of quarantine and testing technology. The device includes a placement base, a fixing frame mounted on top of the base, and a power rod driven by an electric push rod mounted on the bottom of the fixing frame. A blood sampling tube body is mounted on the bottom of the power rod. When an animal is placed on a placement plate within the base, the electric telescopic rod is activated. This, along with a moving rod, an arc-shaped outer plate, an elastic telescopic rod, an arc-shaped inner plate, a hydraulic chamber, a force-bearing rod, a push plate, a spring, a spring, and a pressure plate, allows for initial fixation of the animal before blood sampling. Further fixation is performed during blood sampling, and the device quickly returns to the initial fixation state after sampling, reducing clamping time and minimizing the possibility of injury to the animal.

The utility model discloses a needle cylinder adjusting structure of a circular knitting machine, which relates to the field of circular knitting machines and is characterized in that a fixing block is mounted in a needle cylinder, a hanging ring is mounted above the fixing block, a positioning ring is arranged on the surface of the needle cylinder, and a sliding trigger mechanism for fixing the fixing block is mounted in the positioning ring. The sliding triggering mechanism comprises a fixing rod, a second inner groove is formed in the outer surface of a fixing block, and the front section of the fixing rod is installed in the second inner groove. According to the needle cylinder adjusting structure of the circular knitting machine, when a needle cylinder needs to be fixed, a fixing rod is horizontally pushed forwards along a positioning ring and enters a second inner groove under continuous pushing to complete preliminary fixing, after a rotating plate makes contact with a triggering plate, the triggering plate rotates and is embedded into an inner concave face of the rotating plate, and the needle cylinder is fixed. By means of the design, the connection relation of the fixing blocks is tighter, and the problem that installation is loosened due to vibration generated in the machining process is solved.

A composition and methods of making or use thereof include a plurality of fibers forming a shape for augmenting tendon to bone repair. The physical presence of the plurality of fibers provides initial fixation, while the use of an osteoinductive material provides long term enhancement of bone formation around the site of the tendon to bone repair.

The utility model belongs to angle adjusting hinge technical field especially a kind of self-locking ratchet angle adjusting hinge, including support seat and the adjusting seat of rotation connection with support seat, the upper surface of support seat is provided with self-locking mechanism, the self-locking mechanism includes spring and ball rod, the spring is driven by its elastic deformation and resets ball rod, by setting fixed mechanism, positioning and fixing are carried out to support seat, user when installing adjusting hinge, first, it is initially fixed on target object by back glue, the adhesion of back glue can fill up the tiny gap between support seat, adjusting seat and target object, then further fixed using bolt, form double fixed mechanism, the initial fixation of back glue can reduce installation difficulty and time, and its adhesive layer can absorb vibration and impact force, reduce the dynamic load that bolt bears, prolong the service life of overall structure.

The steel bar connecting structure for building construction comprises two arc-shaped clamping plates rotationally connected through a hinge, when the two arc-shaped clamping plates are closed, a circular inserting opening is formed, two steel bars are arranged between the two arc-shaped clamping plates in a clamped mode, positioning strips are fixedly connected to the ends of the arc-shaped clamping plates, and the two arc-shaped clamping plates are fixedly connected with the positioning strips. T-shaped clamping grooves are formed in the ends of the positioning strips, and when the two arc-shaped clamping plates are closed, the two clamping grooves are in butt joint. The internal thread sleeves at the ends of the reinforcing steel bars are rotationally screwed to the studs, so that the purpose of connecting the reinforcing steel bars and the arc-shaped clamping plates is achieved, the reinforcing steel bars cannot fall off at the moment, and the connecting effect and stability are further improved through the mode; the end portion of the reinforcing steel bar is clamped between the two arc-shaped clamping plates, after the two arc-shaped clamping plates are closed, the connecting blocks are inserted into the corresponding clamping grooves, the two arc-shaped clamping plates are prevented from being separated, preliminary fixing of the reinforcing steel bar is achieved, and the position of the reinforcing steel bar can be flexibly adjusted through the mode.

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.

This utility model relates to the field of automotive parts technology, specifically a control arm that is easy to install. It includes a control arm body, a fixed plate fixedly connected to the inner wall of the control arm body, a limit rod fixedly connected to the inner wall of the fixed plate, a sliding plate slidably connected to the outer wall of the limit rod, a spring provided on the outer wall of the sliding plate, a locking tooth one fixedly connected to the outer wall of the sliding plate, a locking tooth two engaging with the outer wall of the locking tooth one, and a shock absorber assembly fixedly connected to the outer wall of the locking tooth two. A connecting component is provided on the inner wall of the shock absorber assembly. This utility model allows the spring to deform by pressing the locking tooth one inward to push the sliding plate, and the limit rod to restrict the sliding plate. After placing the control arm body, releasing the locking tooth one and locking tooth two achieves initial fixation. It can also lock different angles according to different angle requirements, allowing for single-person operation and solving the problem of increased labor costs.

The utility model provides an injection molding screw rod with a structure convenient to disassemble, which comprises a screw rod assembly, a screw rod main body II, an outer snap ring and a sealing ring, and the right side of the screw rod assembly is provided with the screw rod main body II used for assembling and injection molding together. Compared with the prior art, the screw assembly has the advantages that the screw assembly, the second screw body, the outer clamping ring and the sealing ring are additionally arranged, one end of the sealing ring is embedded into the sealing ring groove, the butt joint column of the first screw body is embedded into the butt joint hole, the limiting sliding block is embedded into the limiting sliding groove, and the bolt is used for preliminary fixing; an outer clamping sleeve is arranged on the outer side of a clamping ring groove, so that a clamping column is embedded into a clamping hole, a connecting block is embedded into a connecting groove and is clamped and fixed through a screw, the injection molding screw rod can be disassembled and assembled in a split mode, the screw rod assembly is additionally arranged, the screw rod assembly is assembled and used through a first screw rod body and a connecting base, and the connecting base is connected with a rotating part of an injection molding machine; and rotation structure connection is facilitated.

The utility model relates to the field of communication cabinets, in particular to a magnetic type double-locking quick-release blind plate, which comprises a mounting plate, a first mounting seat and a second mounting seat, a first positioning part and a second positioning part are respectively arranged at two ends of the mounting plate, a rotatable positioning sleeve is arranged on the surface of the first mounting seat, the first positioning part can be inserted into the positioning sleeve in a paired manner, and the second positioning part can be inserted into the second mounting seat in a paired manner. The positioning sleeve and the first positioning part are internally provided with mutually-attracted magnetic blocks, the second positioning part comprises a shell, a clamping tongue, a connecting rod and an unlocking key, the clamping tongue, the connecting rod and the unlocking key are installed in the shell, the surface of the connecting rod is connected with the inner wall of the shell through an elastic connecting piece, and the unlocking key can drive the clamping tongue to stretch out and draw back through the connecting rod. A positioning block is arranged on the surface of the second mounting base, a tongue hole is formed in the side wall of the positioning block, the clamping tongue can be inserted into the tongue hole in a paired mode, efficient disassembly and assembly are achieved through a magnetic attraction and clamping tongue double-locking mechanism, initial fixing can be rapidly completed without accurate alignment during mounting, and the positioning time is greatly shortened.

The present invention relates to an implant structure having a cover screw for initial fixation and a fixture with a long neck portion capable of securing long-term osseointegration of an implant even after functional loading is applied in cases where bone quality is poor or bone volume is low or insufficient, extensive bone grafting is required, or bone grafting with maxillary sinus lift surgery is performed. The present invention comprises: a fixture (100) implanted in the jawbone to serve as a tooth root; a cover screw (400) inserted into and fixed to the fixture (100) to secure a fixation force of the fixture (100); an abutment (200) which has a lower portion inserted into the fixture (100) from which the cover screw (400) has been separated and removed and which has an upper portion to which a crown (10) is coupled; a fixation screw (300) which fixes the abutment (200) to the fixture (100); and a screw cap (500) coupled to the abutment (200) to cover the fixation screw (300).

This utility model relates to the field of communication pipeline technology and discloses a PE communication pipeline with an interface, including a docking mechanism and a fixing mechanism on the left side of the docking mechanism. The docking mechanism includes a first communication pipe body, and an annular locking block is fixedly connected to the left side of the first communication pipe body. This PE communication pipeline with an interface provides initial fixation through the engaging connection between the annular locking block and the annular retaining sleeve, preventing the two communication pipe bodies from easily separating after docking. The threaded connection between the screw and the connecting block, as well as the squeezing action of the compression ring on the elastic retaining sleeve, further fixes the two communication pipe bodies from multiple directions. This multi-fixing method greatly enhances the stability of the entire communication pipeline interface, enabling it to withstand greater external forces, such as soil pressure and fluid pressure within the pipeline, reducing the risk of loosening or detachment at the pipeline interface and ensuring the normal operation of the communication pipeline.

The utility model discloses a locking mechanism and an auxiliary device for high silicon aluminum alloy processing, which relates to the technical field of high silicon aluminum alloy production and processing, and includes a telescopic component, including a mounting box, a telescopic part and a connecting part; the locking component includes a magnetic table seat, a fastener and a clamping block. By setting the telescopic component and the locking component, the workpiece is initially fixed and further fixed, which reduces the waste of raw materials and the influence of reducing processing efficiency caused by the unfixed workpiece in the prior art, and improves the accuracy of processing. The clamping component is set to fix the workpiece on the mounting plate in sequence to ensure the consistency of processing, and the worker can pull and replace it at will, which is convenient and improves work efficiency.

A method of detecting target nucleic acids, including small non-coding RNAs (sncRNAs), microRNAs (miRNAs), small interfering RNAs (siRNAs), PIWI-interacting RNA (piRNA), or antisense oligonucleotides (ASO) molecules, in a cell, comprising a post-fixation step using an aldehyde-containing fixative after the initial fixation step prior to in situ hybridization.

An analysis method for optimizing number and position of screws used in long bone (fracture fixation) surgery, including the following steps. Perform a CT scan on a surgical patient to obtain a medical image to build a long bone 3D model. Analyze an X-ray image to obtain a long bone fracture condition and a bone quality condition. Select a bone plate 3D model from the model database. Import the bone plate 3D model into the long bone 3D model and set an initial fixation position of the bone plate 3D model. Instruct the first artificial intelligence to comprehensively analyze the conditions to automatically select alternative solutions in the model database. Then, use a computer-aided analysis system to analyze the stress distribution of the alternative solutions, and a first preferred solution is obtained through simulating analysis, thereby excluding incorrect or ineffective surgical plans to reduce the analysis time and patient wait time and increasing the surgery success rate.

In one or more embodiments orthopaedic implants may be provided. The implants may include an expansile structure which may allow for increased contact between an endosteal or periosteal surface for initial fixation and further allow for bone in-growth and / or on-growth. In some embodiments the expansile structure may be made of, for example a NiTiNol structure, which may further be programmed for expansion at body temperatures. In some embodiments the interstices of the expansile structure may further be filled with a shape memory polymer and / or other elastic material which may also be programmed for expansion at body temperatures.

The utility model relates to the technical field of knee joint prostheses for knee joint plasty, in particular to a tibia prosthesis for knee joint plasty, which comprises a tibia plate and a connecting part, a threading hole is arranged on the tibia plate, and the tibia prosthesis is firmly bound on a tibia by a suture through the threading hole, so that the initial fixation of the tibia prosthesis is realized; the porous coating is arranged on the connecting part, the porous structure is beneficial to ingrowth of bone tissue, the bone ingrows into the interconnecting pore channel and extends and is interwoven, so that interlocking combination is formed between the bone and the tibia prosthesis, and the long-term biological fixing effect is achieved; therefore, the whole process of implanting the tibial prosthesis into the human body is reliably fixed. In addition, the tibia prosthesis can be suitable for people with different sclerotin, and the requirement for the sclerotin of a patient is low.

The invention discloses a safety production signboard and an installation method thereof, and relates to the technical field of signboards. The signboard comprises a magnetic signboard body, an adhesive layer, a U-shaped seat with a wedge-shaped groove, a magnetic piston rod with wedge-shaped parts at the two ends and a pull rope. A closed space is defined by the signboard body, the U-shaped base, the piston rod and the equipment shell, the piston rod is driven to slide by pulling the pull rope, the pressure intensity in the space is reduced, and therefore the signboard is tightly attached. According to the invention, the adhesive initial fixation, the magnetic-attraction anti-return and the negative-pressure fitting are combined to form a synergistic fixing system, so that the technical problems that the traditional signboard is easy to generate bubbles, warp and fall off and is unstable in a vibration environment are fundamentally solved, and the long-term reliable, clear and striking fitting effect 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.

This utility model discloses an S-type tee connector that is easy to connect and install. It includes an S-type tee with a connecting pipe at one end. Movable sealing rings are provided on the outer sides of both ends of the S-type tee. Moving screws that move with the sealing rings are provided on the outer sides of both ends of the S-type tee. A compression ring that moves with the moving screws is provided at the end of the S-type tee. A rubber sleeve is provided at the end of the compression ring. Compared with existing technologies, the double sealing structure of the sealing rings and rubber sleeve significantly enhances the sealing performance between the S-type tee and the connecting pipe during connection, effectively preventing media leakage, ensuring a stable connection, and reducing resource waste or safety hazards caused by sealing problems. During connection, the connecting pipe pushes the sealing rings, moving rings, and other components together, causing the compression ring to compress the rubber sleeve, achieving initial fixation of the S-type tee and the connecting pipe before welding.

The utility model discloses a kneecap device, relates to sports equipment field, including inner protection pad, the outer wall of inner protection pad is symmetrically provided with a pair of spacing ring, the inside of the pair of spacing ring is movably provided with outer protection pad, the both ends of inner protection pad and outer protection pad are provided with connecting structure, one side of inner protection pad is provided with a plurality of connecting band, the connecting band is provided with a plurality of connecting pieces, and the connecting pieces are provided with a plurality of connecting pieces. And the connecting band is connected with the kneecap main body. When the knee protection device is used, firstly, the outer protection pad and the inner protection pad are attached to the knee, primary fixing is achieved through mutual pasting of the first hook-and-loop fastener and the second hook-and-loop fastener, and then the knee protection body and the inner protection pad are connected through the connecting belt and the buckle. The installation method is simple and convenient in step, the kneecap can be quickly worn, and the kneecap is not easy to loosen in the use process, can be tightly attached to the knee, provides reliable protection for the knee in different motion states, and is suitable for both daily motion and high-intensity training.

The invention discloses a metal pipe buckle type sealing connecting piece which comprises a buckle type sealing sleeve used for conducting sealing connection on a first metal pipe and a second metal pipe, and a fixed sealing ring is fixedly connected to the center of the interior of the buckle type sealing sleeve in a sleeved mode. According to the invention, through the cooperation of a dual-locking structure that the buckle of the cylindrical chuck is preliminarily fixed and the positioning pin is prevented from falling off, and the operation advantage of tool-free quick release, the metal pipe fitting is suitable for operation in a narrow space, so that the first metal pipe fitting and the second metal pipe fitting can be quickly mounted and connected through the buckle type sealing sleeve, and the service life of the first metal pipe fitting and the second metal pipe fitting is prolonged. And the connection is very firm, so that the sealing performance of the first metal pipe and the second metal pipe which are mounted and connected by the buckle type sealing sleeve is better, the situation that the assembling steps are relatively tedious and the operation is difficult in a narrow space in the conventional mechanical connection mode is avoided, the risk of leakage is reduced, and the service life of the metal pipe is prolonged. And meanwhile, the working efficiency is improved, and the sealing performance is better.

A composition and methods of making or use thereof include a plurality of fibers forming a shape for augmenting tendon to bone repair. The physical presence of the plurality of fibers provides initial fixation, while the use of an osteoinductive material provides long term enhancement of bone formation around the site of the tendon to bone repair.

In one or more embodiments orthopaedic implants may be provided. The implants may include an expansile structure which may allow for increased contact between an endosteal or periosteal surface for initial fixation and further allow for bone in-growth and / or on-growth. In some embodiments the expansile structure may be made of, for example a NiTiNol structure, which may further be programmed for expansion at body temperatures. In some embodiments the interstices of the expansile structure may further be filled with a shape memory polymer and / or other elastic material which may also be programmed for expansion at body temperatures.

In some embodiments, the present invention provides a reverse shoulder glenoid prosthesis which supports the attachment of multiple different types of modular attachments that can: 1) provide additional scapular fixation (ie external to the glenoid) in order to improve glenoid implant fixation in cases of severe bone loss / fracture, 2) provide joint line lateralization to improve tissue stability in cases of severe glenoid / scapula bone loss, 3) facilitate use and containment of glenoid bone graft in cases of severe glenoid / scapula bone loss—particularly in those cases in which the glenoid defect is uncontained / peripheral 4) achieve glenoid fixation while at the same time reconstructing the scapular bone in cases of scapula fractures, glenoid fractures, and / or acromial fractures, and 5) provide improved rTSA joint biomechanics, particularly posterior rotator cuff efficiency by changing the line of action of the infraspinatus and teres minor muscles to improve their muscle tension, and also increase each muscle's external rotation and abduction moment arm lengths.