23 results about "Embedded teeth" patented technology

The invention discloses a shield tunnel shallow soil covering section ground surface settlement real-time monitoring device, and relates to the technical field of ground surface settlement monitoring, the shield tunnel shallow soil covering section ground surface settlement real-time monitoring device comprises a measuring assembly used for monitoring shield tunnel shallow soil covering section ground surface settlement in real time and an infrared receiver, and the outer surface of one side of the measuring assembly is provided with a contraction assembly used for storage; the outer surface of the contraction assembly is provided with a supporting assembly used for keeping the measuring assembly stable. According to the shield tunnel shallow soil covering section ground surface settlement real-time monitoring device, adjustment in two directions is achieved through transmission of a turbine and a worm and meshing of a first tooth embedded tooth and a second tooth embedded tooth with a tooth embedded tooth ring, a motor drives the worm to rotate, a fixing shaft is driven by the turbine to rotate, the vertical monitoring angle of an infrared measuring instrument body is adjusted, and the measurement accuracy is improved. The second hydraulic rod pushes the moving frame, so that the jaw tooth ring is meshed with the first jaw tooth to drive the second supporting frame to rotate, and angle adjustment of the infrared measuring instrument body in the horizontal direction is achieved.

The invention discloses an embedded tooth traction device, and relates to the related technical field of dental traction devices, the embedded tooth traction device comprises a winding mechanism arranged on one side of an adhesion plate, the winding mechanism comprises a traction chain connected with the adhesion plate, one end, far away from the adhesion plate, of the traction chain is wound on a winding drum, and the winding drum is connected with the adhesion plate. The winding drum is rotatably arranged on the winding drum connecting plate, the winding drum is fixedly connected with the adjusting rotating shaft, and the adjusting rotating shaft is rotatably connected with the winding drum connecting plate. The winding mechanism is arranged, and the winding drum is in winding connection with the traction chain, so that the pulling force of the traction chain is manually controlled, and adjustment is more flexibly completed; the winding mechanism is matched with the direction adjusting mechanism, so that the three-dimensional traction direction of the traction chain can be adjusted by taking a winding drum as a guide wheel, and the traction angle, direction and force of the embedded tooth can be flexibly adjusted more conveniently.

The invention relates to the technical field of orthodontics, in particular to a buccal side embedded canine tooth traction guide plate and a traction method thereof.The traction guide plate comprises a fixing end and a traction end, the fixing end is of a rectangular structure, the fixing end is fixed to an orthodontic bracket and an orthodontic arch wire on rear teeth through metal ligature wires, and the traction end is connected with the metal ligature wires. A traction end is mounted on the side, close to the embedded teeth, of the fixed end, the traction end is of a bent arc-shaped structure, a first traction position and a second traction position are arranged on the traction end, and the traction end is connected with a traction site bonded to the embedded canine teeth through an elastic rubber chain so as to pull the embedded canine teeth; according to the invention, the arc-shaped traction end with the first traction position and the second traction position is designed, the first hook is utilized to realize inclined movement of the embedded canine from the embedded position to the target area in the first stage, and the plurality of second hooks are utilized to realize vertical positioning and fine position adjustment of the teeth in the second stage; the accuracy and controllability of a tooth moving path are improved, and the treatment period is shortened.

The utility model relates to the field of orthodontics, especially to adjustable embedded tooth auxiliary external traction device. The utility model provides an adjustable embedded tooth auxiliary external traction device which can move and adjust the traction block up and down, left and right and forward and backward according to requirements, and is convenient for flexible adjustment of traction point. The adjustable embedded tooth auxiliary external traction device comprises elastic bands and pull rings, the elastic bands are provided with two left and right elastic bands, and the elastic bands are connected with pull rings at the front part. The utility model adjusts the height position of the traction block through up and down movement of the adjusting rod, then moves and adjusts the adjusting rod forward and backward, adjusts the distance between the traction block and the user's lip, then moves and adjusts the traction block left and right on the adjusting rod, so that the traction block can be moved and adjusted up and down, left and right and forward and backward according to requirements, and the effect of convenient flexible adjustment of traction point is achieved.

The invention discloses an embedded tooth impacted tooth positioning traction simulation system based on a 5D bionic technology, which comprises a jaw model and a pre-operation simulation system, the jaw model is provided with an alveolar socket, a tooth root model and an embedded tooth model are detachably arranged in the alveolar socket, the jaw model is provided with a traction device in a mutual matching manner, and the traction device is provided with a tooth root model and an embedded tooth model. The traction device comprises two fixers and a traction arch wire; the two fixers are sleeved on the tooth root model; the traction arch wire is connected with the two fixers; a closed curve for hooping the embedded tooth model is arranged on the traction arch wire; a positioning guide plate is used in cooperation with the tooth root models, a positioning window is arranged on the positioning guide plate, the position of the positioning window corresponds to the position of the embedded tooth model, and a model taking device is used in cooperation with the closed curve. A real operation environment is provided for a doctor, the positioning guide plate accurately corresponding to the position of the embedded tooth is combined, the traction device can be guided to be in place rapidly and accurately, the precision and efficiency of preoperative planning are greatly improved, and the operation risk is reduced.

The invention relates to an embedded tooth dynamic monitoring method and system based on magnetic navigation, and the method comprises the following steps: positioning and marking: fixing a miniature magnet on the surface of a target embedded tooth as a magnetic field navigation mark; signal acquisition and calculation: acquiring a magnetic field signal generated by the micro magnet, and calculating three-dimensional space position information of the embedded tooth based on a magnetic field model; trajectory planning: based on the initial position and tissue parameters of the embedded tooth, establishing a magnetic force application model, and generating a target traction trajectory; trajectory tracking: updating the actual displacement trajectory of the embedded tooth according to the continuous three-dimensional position information; comparing and early warning: comparing the actual displacement track with the target track or the predicted path, and outputting early warning information when detecting that the position or the motion state of the embedded tooth is abnormal; and performing visual display. Compared with the prior art, the method has the advantages that real-time dynamic monitoring is achieved, abnormal deviation is accurately early warned, force application controllability is improved, and intelligent path prediction is achieved.

The present application relates to the field of dental correction tools, in particular to a device for traction of impacted teeth. The device is composed of a traction hook and an appliance. The traction hook is adhered to the crown of the impacted tooth to be tractioned. The traction hook is composed of an adhesive accessory and a ligature wire. One end of the ligature wire is fastened to the adhesive accessory, and the other end of the ligature wire is free and curved into a hook. The appliance is composed of an elastic traction wire and a retaining device. One end of the elastic traction wire is embedded in the retaining device, and the other end of the elastic traction wire is curved and connected to the free curved end of the ligature wire of the traction hook. The device can reasonably adjust the traction direction of the impacted teeth in three-dimensional space, and can correct the impacted teeth in different dentition periods. The device has low requirements for the anchorage teeth, is simple to manufacture, low in price, and has remarkable effects.

The invention discloses an embedded tooth traction device and method, and belongs to the technical field of orthodontic tools. The device comprises a bonding ring, a combined ring and a stress application unit, the bonding ring, the combined ring and the stress application unit are integrally made of orthodontic ligature wires, the bonding ring can be tightly attached according to the radian of the surface of an embedded tooth, the combined ring comprises a plurality of continuous ligature rings and can be adjusted in direction according to a preset track, and the stress application unit adopts TP elastic cotton threads or NITI wires to provide traction force. The traction method comprises the steps of surgical exposure of embedded teeth, sufficient hemostasis, acid etching and bonding, direction adjustment, surgical suture, closed traction, stress application, revival adjustment and the like. The problems that an existing traction accessory is low in sealing degree, prone to falling off, uncontrollable in traction direction, difficult in closed traction suturing and capable of damaging periodontium are solved, the traction accessory has the advantages of being firm in bonding, accurate in traction, minimally invasive, friendly, low in cost and convenient and fast to operate, the traction success rate of the embedded tooth can be effectively increased, and pain of a patient is relieved.

The utility model relates to medical instrument technical field, propose a kind of oral cavity saliva suction pipe with fixed function, including saliva suction pipe body, the one end of saliva suction pipe body is the same as gingival separator like sickle shape, the outside wall of saliva suction pipe body is provided with occlusal block, the side of occlusal block is provided with guide pipe, and saliva suction pipe body is inserted in occlusal block and guide pipe, the left and right sides of occlusal block are both fixedly installed with H-shaped casing, the upper and lower sides of occlusal block are both provided with occlusal plate, the side of two occlusal plates is all rectangular fixedly installed with four fixed columns, and fixed column and H-shaped casing are inserted between, the side of fixed column is sequentially provided with multiple insertion holes from top to bottom, one of H-shaped casing is provided with a pair of locking components, by the one end of saliva suction pipe body is set to sickle shape, to make the working end of saliva suction pipe body have a little angle, to further when extracting embedded tooth, can be used to fix incised gingival, assist doctor treatment, saliva can also continue to be sucked.

Embodiments of the present application provide a method and device for determining tooth numbers, obtaining first crown data and second crown data of the same patient in the same treatment stage; determining the tooth number of the second tooth as the tooth number of the first tooth based on the overlapping degree of the crown of the first tooth in the first crown data and the crown of the second tooth in the second crown data, the overlapping degree of the first tooth satisfying a first set threshold; determining the tooth number of any third tooth in the second crown data according to the positional relationship between the crown of the second tooth with the tooth number and the crown of the third tooth; the third tooth is any tooth in the second crown data except the second tooth with the tooth number. By pairing the tooth numbers according to the first crown data and the second crown data, the tooth number of the corresponding permanent tooth in the second crown data and the tooth number of the embedded tooth in the second crown data are determined, thereby improving the efficiency and accuracy of determining the tooth number.

The invention relates to the field of orthodontics, and particularly discloses a bracket-free invisible orthodontic appliance combining a personalized armature and a magnetic accessory, which comprises a bracket-free invisible orthodontic appliance, a first magnet fixed on the inner side of the bracket-free invisible orthodontic appliance and a personalized armature capable of being adhered to the tooth surface of a target tooth, and the armature comprises a second magnet or a magnetisable material. Wherein the position of the first magnet and the bonding position and form of the personalized armature are individually designed based on a three-dimensional digital model of the dentition of a patient, so that when the appliance is worn, magnetic force is generated between the two magnets, and a target tooth is driven to move in a non-contact manner; according to the invention, through organic combination of digital design and magnetic non-contact driving, precise and controllable correction of severely dislocated teeth and embedded teeth is realized. According to the method, the advantages of attractiveness and comfort of invisible correction are reserved, meanwhile, the problems that traditional invisible correction is insufficient in wrapping of teeth and difficult in force application are effectively solved, and a new solution is provided for treatment of complex malocclusion.

The utility model provides a frame front stand column and an elevator. The frame front stand column comprises a stand column body and a cover plate, and the stand column body is of an L-shaped structure. The stand column body and the cover plate are detachably matched through mutually-embedded tooth-shaped structures. A wire slot cavity is formed inside after the stand column body and the cover plate are combined. A first tooth-shaped connecting face is arranged on the stand column body, a second tooth-shaped connecting face is arranged on the cover plate, and the first tooth-shaped connecting face and the second tooth-shaped connecting face are matched with each other. Compared with a traditional frame front stand column, the frame front stand column is provided with a wire groove cavity of an open structure, and cables are quite convenient to install and maintain; meanwhile, after the cable is installed and the cover plate is closed, the cover plate not only covers the wire duct cavity, but also ensures the structural strength through the mutual embedding of the tooth-shaped structure and the stand column body.

The utility model relates to the field of medical apparatus and instruments especially is convenient for fixed embedded tooth auxiliary external traction device, including first elastic band, pull ring, belt, buckle, second elastic band and support sleeve etc., first elastic band is equipped with left and right two, first elastic band front all is connected with pull ring, and the belt is connected between pull ring, and the buckle is equipped between first elastic band rear, and the second elastic band is connected with support sleeve between second elastic band lower part, the utility model discloses through wearing the device on the head of user, make the soft pad and the forehead contact and adhere of user, again through buckle fixed, simultaneously with the support sleeve cover on chin, to be able to through the cooperation of first elastic band and second elastic band, belt, soft pad and support sleeve and the fixed adherence wearing of the device, convenient for adapting the personnel use of different head circumference and chin length, prevent displacement, improve use stability and comfort.

The utility model discloses a spliced prefabricated rubber track, including rubber path body, quick -witted connection mechanism, stable clamping mechanism and pressure mechanism, quick -witted connection mechanism includes mounting seat and clamping rod, stable clamping mechanism includes internal tooth ring and double -decked clamping ring, pressure mechanism includes screw ring and pressure ring, through the design of mounting seat and clamping rod, realized the quick -witted connection and disassembly between rubber track module, and the cooperation of clamping rod and clamping pipe makes the installation process simple and direct -viewing, and the construction efficiency is improved greatly, and the limit block prevents clamping rod from excessive insertion, and the accurate and reliable connection is ensured, through the design of internal tooth ring and double -decked clamping ring, provide the firm locking mechanism for the connection, and the embedded tooth plate can rotate and insert into the clamping rod and fix it, through the design of screw ring and pressure ring, even pressure is applied to the connecting place, and the rotation of screw ring is transmitted to the push frame through the thrust swivel frame, makes pressure ring directional sliding, ensures that the adjacent rubber path body is closely attached.

The invention discloses an auxiliary device for directional traction of an embedded tooth. The auxiliary device comprises a retainer, a traction force adjusting structure and a traction direction guide body, the retainer comprises a clamping ring worn on teeth and a bracket connected with the clamping ring; the traction force adjusting structure comprises a first traction ring and an adjuster used for adjusting the position of the first traction ring. The traction direction guiding body comprises a second traction ring used for controlling the traction force direction and a connecting rod used for enabling the second traction ring to be located at a set position. When the embedded tooth is dragged, the auxiliary device for directionally dragging the embedded tooth can be used as a stable counter-acting force foundation, and the traction force direction and the traction force size of the embedded tooth can be accurately controlled.

This invention discloses a metal ring-embedded toothed composite gasket, comprising a ring-shaped toothed skeleton and a non-metallic layer. The ring-shaped toothed skeleton includes several steel strip rings with identical structures and gradually varying sizes, coaxially nested in sequence. The non-metallic layer is symmetrically arranged on both the upper and lower sides of the ring-shaped toothed skeleton along its axial direction. Multiple outer steel strip weirs arranged in a stacked pattern are coaxially fitted on the outer side of the ring-shaped toothed skeleton, and multiple inner steel strip weirs arranged in a stacked pattern are coaxially fitted on the inner side of the ring-shaped toothed skeleton. The outer and inner steel strip weirs are connected to the ring-shaped toothed skeleton. The use of multiple V-shaped steel strip rings coaxially nested in sequence to form the ring-shaped toothed skeleton changes the original toothed skeleton's shape, which helps eliminate safety risks at the weld joints of the metal toothed skeleton and reduces processing costs. The W-shaped steel strip weirs form protective weirs, protecting the non-metallic layer while providing radial pressure to the composite gasket, enhancing its axial compressive strength, and further improving its sealing performance.

The invention particularly relates to a slidable embedded tooth traction device combining a digital model with CBCT, the slidable embedded tooth traction device comprises a guide bracket, a tongue side buckle and a traction rope, both sides of the guide bracket are provided with profiling gear rings, the guide bracket is slidably connected with a traction slip ring, the traction slip ring is in threaded connection with a first screw, and the traction slip ring is in threaded connection with a second screw. The traction sliding ring is fixedly connected with the guide support through a first screw, a positioning cylinder is arranged on the traction sliding ring, a traction hook is inserted into the positioning cylinder and composed of an insertion rod and a hook, the traction rope is arranged on the tongue side buckle and the hook in a sleeving mode, a screw hole is formed in the insertion rod, and a second screw is connected to the screw hole in a threaded mode. The embedded tooth traction device has the advantages that the slidable traction sliding ring and the detachable traction hook are arranged, adjustment in the three-dimensional direction can be conducted along with the traction treatment course of embedded teeth, the discomfort of a patient in the treatment course can be reduced, and the traction accuracy and efficiency of the embedded teeth are improved.

The invention relates to the technical field of roller bits, in particular to a full-sintered-layer steel-tooth roller bit and a manufacturing method, the full-sintered-layer steel-tooth roller bit comprises a plurality of palm and cone single pieces, each palm and cone single piece is composed of at least one palm and a cone connected with the palm through a bearing system, and the multiple palm and cone single pieces are welded to form a bit body; the cone comprises a central steel base body and a plurality of cone teeth, the full-sintered wear-resistant layer is integrally sintered and formed through a powder metallurgy process and wraps the outer part of the central steel base body, and the main component of the full-sintered wear-resistant layer is tungsten carbide; and the tooth metal frameworks are pre-buried in the fully-sintered wear-resistant layer and distributed in the circumferential direction of the roller cone. Through the high-proportion tungsten carbide wear-resistant layer which is integrally sintered and molded and the pre-embedded tooth metal framework, the tooth part of the tooth and the body form a compact and high-hardness composite structure at a time, and the tooth-embedded composite tooth drill bit has the double advantages of high structural integrity of a steel tooth drill bit and high wear resistance of a tooth-embedded drill bit; and the problems that the surfacing layer is easy to wear and peel off and the inserted teeth are easy to loosen are effectively avoided.

The disclosure belongs to the technical field of snoring prevention, in particular to a brace-type anti-snoring device, which includes an upper brace, a lower brace and a brace mounting seat. The upper brace and the lower brace are both fixedly arranged on the brace mounting seat. An upper surface of the upper brace is provided with an upper tooth socket, and the upper tooth socket is configured for embedding teeth of an upper jaw; and a lower surface of the lower brace is provided with a lower tooth socket, and the lower tooth socket is configured for embedding teeth on a lower jaw and restricting the lower jaw from moving backwards.

The utility model provides a bridge expansion joint device convenient to maintain, and relates to the technical field of municipal bridge engineering. Mounting holes are formed in one side of each fixing plate at equal intervals; a cleaning cover plate is further mounted at the top of each fixing plate through a bolt; embedding teeth are arranged on the other side of the fixing plate in an integrated forming mode at equal intervals, and a gravel collecting box is further fixed to the lower portion between every two adjacent embedding teeth; a cleaning scraping plate is slidably mounted on the inner side of each gravel collecting box, and the cleaning scraping plates are welded to one side of the push-pull frame. The device can effectively prevent the gap between the expansion joints from being blocked by gravels, ensures that the expansion joints stretch out and draw back freely, and is more convenient to maintain and clean in the later period.

1. The name of the design product: nut (embedded copper tooth lengthened plastic nut). 2. The use of the design product: used for bathroom faucet, pipe fittings, etc. fixed. 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 discloses an orthodontic traction device for complex embedded teeth, which belongs to the field of orthodontics and comprises embedded teeth, a plurality of teeth are arranged at the bottoms of the embedded teeth, one end of each tooth is fixedly connected with a bracket, and the brackets are connected through the same arch wire in a penetrating manner. The outer wall of the arch wire is movably connected with two moving frames, and the sides, away from each other, of the two moving frames are fixedly connected with first universal joints. According to the correction traction device for the complex embedded teeth, by arranging an arch wire, a movable frame, a first universal joint, a second universal joint, a threaded rod and a threaded sleeve, when the traction device is used, the correction angle of the embedded teeth can be adjusted, and the situation that the embedded teeth deviate due to direct traction in the correction process is avoided; meanwhile, the situation that the occlusal force of a patient is reduced due to offset of the embedded teeth is avoided, and through thread self-locking of the threaded rod and the threaded sleeve, the correction stability can be guaranteed after the embedded teeth are corrected.

The utility model relates to the technical field of sealing gaskets, in particular to a combined rubber sealing gasket which comprises a sealing gasket body and a through hole formed in the middle of the sealing gasket body, and the sealing gasket body comprises a PTFE sealing layer, a rubber elastic layer and a bottom abrasion-resistant layer which are sequentially arranged from top to bottom. The lower surface of the PTFE sealing layer is fixedly connected with a plurality of embedded teeth extending into the rubber elastic layer, the bonding strength of the PTFE layer and the rubber elastic layer is greatly enhanced through the embedded tooth structure, the problem of interface stripping failure under long-term thermal cycle and pressure fluctuation is effectively solved, the special polyurethane wear-resistant layer is additionally arranged at the bottom, wear-resistant particles are compounded, and the wear-resistant performance of the rubber elastic layer is improved. The wear resistance of the direct contact mounting surface of the sealing gasket is remarkably improved, the overall compressive strength and deformation resistance of the sealing gasket are remarkably enhanced through the built-in wavy supporting framework, and the sealing reliability, durability and working condition adaptability of the sealing gasket are comprehensively improved through the synergistic effect of all the functional layers.