22 results about "Initial fixation" patented technology

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 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.

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.

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 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.

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.

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.

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.

This utility model relates to a fixed adjustable experimental machining fixture, including a fixture body base, a vertical fixing plate, and a concave clamping plate. The fixture body base is connected to the vertical fixing plate through countersunk threaded holes to ensure the stability of the device. The vertical fixing plate has symmetrically distributed fixing threaded holes and clamping threaded holes, and is connected to the concave clamping plate through fixing concave clamping bolts to achieve height adjustment. The concave clamping plate has three transverse clamping threaded holes, and the workpiece is clamped in multiple directions through transverse clamping bolts and front and rear clamping bolts. The concave design of the concave clamping plate facilitates the passage of workpieces when machining holes, avoiding interference. The workpiece platform has support points or positioning grooves for initial fixation of the workpiece position. This fixture is bolted together to form an integral structure, ensuring stability and accuracy during machining, and is detachable, suitable for clamping and machining various experimental workpieces.

This application provides a broadcast system playback column that is easy to install, including a playback column body, a stabilizing device, and a fixing device. The stabilizing device is located in the middle section of the playback column body and includes a fixed rod, a sliding sleeve, a connecting plate, an extension rod, a telescopic spring, and a fixed rod. The fixed rod is fixedly connected to the playback column body, and the sliding sleeve is slidably connected to the fixed rod. The connecting plate and the extension plate are respectively located on both sides of the sliding sleeve. The end of the extension rod is connected to the fixing sleeve by a screw. The two ends of the telescopic spring are fixedly connected to the extension plate and the playback column body, respectively. The fixing device is located on the top and bottom walls of the playback column body. This application achieves initial fixation through the stabilizing device, wherein the sliding sleeve and the fixed rod are slidably connected to drive the opening and closing of the fixing sleeve, and the telescopic spring is used to drive the fixing sleeve to retract and clamp. Then, the fixing device is used for fixation. The fixing sleeve has a rubber pad layer inside for more secure installation.

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.

A composition and methods thereof include bone fibers made from cortical bone in which a plurality of bone fibers are made into shapes that are used to augment rotator cuff and acl repair. Sheets of bone fibers may be used as an interface between bone and tissue, tendons, and / or ligaments. The physical presence of the fibers provides initial fixation, while the use of an osteoinductive material provides long term enhancement of bone formation. A delivery system and methods of use are also provided.

This invention discloses an embedding mold for preparing resin-embedded single yarns. The mold comprises a first clamping block, a second clamping block, an adjusting spring, and an adjusting bolt. One end of the single yarn is placed into the first clamping block in a first fixing groove and clamped securely. The other end of the yarn is placed into the second clamping block in a second fixing groove for initial fixation, at which point the adjusting spring is initially compressed. After closing the cover plate and injecting liquid resin, if the yarn bends, the adjusting bolt is rotated using a screwdriver. This causes the abutment block to apply a downward force to the second clamping block, further compressing the adjusting spring. The second clamping block moves downward along the second fixing groove, thereby taut and straightening the yarn, counteracting its own curl and twist, ensuring the yarn remains straight throughout the embedding process, preventing bending and twisting, and ensuring accurate measurement of key parameters such as yarn diameter, cross-sectional area, and irregularity.

This utility model relates to the field of municipal engineering technology and discloses a leak-proof structure for municipal HVAC water supply and drainage pipes. It includes two fixing rings, each with a fixing seat fixedly connected to both sides. A housing is disposed between the two fixing seats on the same side. A locking ring is threadedly connected to the outer side of the housing, and a sliding rod is slidably connected inside the housing. A connecting seat is fixedly connected to the outer side of the sliding rod, and a spring is fixedly connected to the outer side of the connecting seat. A sealing component is disposed inside the fixing rings. In this utility model, pushing the sliding rod moves the connecting seat, compressing the spring and causing the fixing bracket and baffle to move. After the baffle contacts the housing, it rotates around the fixing rod, the torsion spring stores force and contracts, pushing the housing through the fixing seat. After the baffle passes, the sliding rod is released, the spring rebounds and resets, the baffle is released from constraint, and the torsion spring resets, causing it to abut against the fixing seat. The spring force reinforces the structure, achieving initial fixation of the housing and effective fit of the fixing rings to the leaking pipe.

This invention relates to the field of robotic arm technology, specifically to a robotic arm feeding device for implantable medical devices. The device includes a robotic arm and further comprises: a connecting frame mounted on the robotic arm for fixing a support base; a connecting base for mounting a robotic gripper; a positioning support mechanism mounted on the connecting frame for precise alignment during installation and stable support during disassembly; and a double-sided limiting mechanism located on the support base for simultaneously limiting and fixing the inner and outer sides of the connecting base. By using the positioning support mechanism, a folded support plate slides into a first spring. When the sliding block aligns with the inner slot, pulling the bottom inserts on both sides causes the sliding block to extend into the inner slot under the elastic action of the first spring, achieving initial fixation of the connecting base and the robotic gripper. Pushing the connecting base upwards causes the folded support plate to slide upwards, achieving a positioning function and realizing precise alignment during installation of the support base and the connecting base.

This utility model belongs to the field of installation structure technology, and in particular to a solenoid valve installation structure, including an installation component. A limiting auxiliary component is provided on the outer side of the installation component, and a reinforcing component is provided within the limiting auxiliary component. This solves the problems of difficult positioning during existing solenoid valve installation, easy displacement during installation, resulting in low installation efficiency and difficulty in ensuring installation accuracy. Furthermore, after installation, the lack of effective limiting and reinforcing structures makes it difficult to resist external forces such as vibration during equipment operation, easily causing the solenoid valve to loosen. The L-shaped locking rod connected by the spring connector in the limiting auxiliary component cooperates with the inner slot of the side locking plate to achieve rapid initial positioning of the solenoid valve unit, eliminating the need for a complex alignment process, reducing installation time, and completing initial fixation before tightening the threaded limiting component, simplifying the installation process and reducing the difficulty of installation operation.

The utility model discloses a mold thermocouple fastening device, which relates to the technical field of thermocouple assembly and comprises a shell, a clamping mechanism, an elastic pressing assembly and a locking structure. A mounting channel is arranged in the shell and is used for guiding directional mounting of the thermocouple probe; the clamping mechanism is located at the front end of the shell and comprises at least two clamping jaws capable of elastically deforming, and rapid positioning and preliminary fixing are achieved through meshing of limiting steps evenly distributed in the circumferential direction and a preformed hole of a mold. The elastic pressing assembly is arranged in the shell in a sliding mode, the tail end of the elastic pressing assembly is provided with an arc-shaped groove matched with the probe in shape, the rear end of the elastic pressing assembly provides continuous pressing force through a spiral spring, and gap changes caused by vibration or thermal deformation can be dynamically compensated. The locking structure penetrates through the side wall of the shell, rotation of the bolt is converted into axial locking force through matching of the conical head and the inclined face of the limiting groove of the pressing block, the vibration resistance and the contact stability are remarkably improved through the multi-stage synergistic effect, and temperature measurement signal drifting or probe falling is avoided.

The utility model discloses a quartz ceramic roller molding plaster mold which comprises a mold main body and a quick clamping device, the rapid clamping device is arranged at the bottom end of the mold body, the bottom end of the mold body is inserted into the inner side of the mold groove, the mold groove can provide preliminary fixation for the mold body, then the crankshaft drives the forward-reverse screw to rotate forwards, the forward-reverse screw drives the threaded sleeves on the two sides to move oppositely, and the mold body is clamped in the mold groove. And the clamping frames on the two sides are gradually drawn close to the mold groove until the clamping frames are clamped and fixed to the two sides of the mold body through the clamping grooves, so that assembly and fixation of the mold body are completed, the clamping frames can be controlled to clamp and fix the mold body only through the crankshaft, repeated operation of mounting a large number of clamps is omitted, and the production efficiency is further improved.

This utility model relates to the field of agricultural machinery and tools, and discloses a high-strength tool box for a micro-tiller. It includes a base, a spring fixedly connected to the bottom of the inner wall of the base, guide rods fixedly connected to the left and right sides of the inner wall of the base, a placement plate slidably connected to the surface of the guide rods, a placement groove on the top of the placement plate, a fixing groove on the front end of the inner wall of the base, an insertion mechanism on the top of the base, and a fixing mechanism on the top of the base. This utility model utilizes a throttle to rotate a gear, causing a rack meshing with the gear to move forward. This allows a magnet at the front end of the rack to insert into the fixing groove at the rear end of the inner wall of the base, forming a magnetic connection with the front end of the fixing groove. This achieves initial fixation of the rear end of the cover plate. The operation is convenient and efficient, requiring no complex tools to easily close and open the cover plate, effectively preventing accidental loosening of the cover plate during tool box movement or micro-tiller operation.