91 results about "Root canal" patented technology

The invention relates to the technical field of digital medical treatment, and discloses a dental three-dimensional identification and model generation method based on CBCT and deep learning, and the method comprises the steps: carrying out the preprocessing of obtained CBCT image data; the preprocessed CBCT image data is segmented, and the segmentation step comprises the substeps that a tooth three-dimensional model, an alveolar bone three-dimensional model and a mandibular neural tube three-dimensional model are obtained by adopting a two-stage cascade deep learning network; based on the tooth three-dimensional model and the alveolar bone three-dimensional model, obtaining a periodontal membrane three-dimensional model through geometric and Boolean operation; a tooth root area in the tooth three-dimensional model is positioned, and a self-adaptive threshold method is adopted for CBCT image data corresponding to the tooth root area, and a root canal three-dimensional model is recognized and generated; based on at least one of the obtained three-dimensional models, a personalized clinical application model is generated, high-precision automatic segmentation of the dental complex anatomical structure is achieved, and a reliable digital model basis is provided for personalized precision medical treatment.

1. Name of the product in this design: Root canal measuring instrument (for oral and maxillofacial surgery). 2. Purpose of this design: It is used in a root canal measuring instrument, which is a measuring instrument for oral and maxillofacial surgery. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

Root Canal Irrigation Pressure Control and Flow Monitoring Device

There is provided a kit for performing socket shield technique, and methods for using the kit, wherein the kit may include a wheel bur, having a first working surface disc and a second working surface disc configured to smoothen and cut hard tissues of a tooth; one or more trephine burs with stoppers configured to cut a root canal to create a first tooth fragment and a second tooth fragment, wherein each stopper is compatible with each of the one or more trephine burs; a root fragment remover configured to extract the first tooth fragment and stabilize the second tooth fragment; a split end elevator having a v-shaped notch tip configured to remove the first tooth fragment; a cylindrical bur to control the thickness of the second root fragment; and a round bur configured to separate the second root fragment from unwanted fragments.

The invention discloses a root canal oscillation negative pressure flushing system and method, and belongs to the technical field of medical instruments. According to the technical scheme, the negative-pressure washing system for root canal oscillation washing comprises a main machine module, a handle module, a negative-pressure washing needle head and a sewage collecting module; the negative pressure flushing needle head is of a dual-channel coaxial structure of a liquid supply channel and a negative pressure back suction channel, the negative pressure flushing needle head is rigidly connected with the handle module, and a vibration conduction assembly is arranged in the handle module; through the integrated design and the dual-channel coaxial structure, the operation process is simplified, the leakage risk is reduced, and it is ensured that liquid supply and negative pressure are synchronous; the liquid medicine is activated in combination with the vibration conduction assembly, the cleaning efficiency is improved, and the device has the advantages of being convenient to operate, reducing leakage risks, ensuring synchronization of liquid supply and negative pressure and improving the cleaning efficiency.

A method for determining the optimum relative position of at least one sensor and / or at least one imaging source of an imaging device for at least one intraoral imaging, and for the non-overlapping imaging of at least two tooth root canals. The disclosure also relates to a sensor holder (1) for intraoral imaging including at least one biting device (2) that is insertable into the mouth of a patient, at least one holding device (3) at least indirectly engaged with the biting device (2) for fixing at least one sensor, and at least one centering device (4) for aligning at least one imaging device. The centering device (4) is at least indirectly in operative connection with the biting device (2) via at least one centering device holding portion (5).

The utility model relates to the technical field of deciduous tooth root canal treatment, in particular to a flushing auxiliary instrument for deciduous tooth root canal treatment, which comprises an injection needle body, a cylinder is arranged at the mounting end of the injection needle body, external threads are arranged on the outer surface of the cylinder, and a plug is arranged in the cylinder. The interior of the plug is of a hollow structure and is installed on the inner wall of the injection needle body in a communicated mode, the injection end of the injection needle body is arranged to be an oval pointed end, a plurality of flushing holes are evenly formed in the outer side wall of the oval pointed end, and the installation end of the injection needle body is installed on an externally-connected injector body. According to the utility model, the resistance mood of children can be avoided, a threaded retention syringe or a pluggable retention syringe can be selected according to clinical practice, and meanwhile, the bending angle of the syringe needle body can be adjusted according to different orientations of the root canals of the deciduous molar teeth for pre-bending, so that the flushing efficiency of the root canals in different orientations under non-direct vision is improved.

Suction Device for Advanced Root Canal Disinfection

The invention discloses an oral cavity teaching training model for dental pulp blood supply reconstruction, and the model comprises a model body which is provided with a puncture channel for simulating a root canal; the puncture seat is arranged at the lower end of the puncture channel, and a bleeding hole communicated with the puncture channel is formed in the puncture seat; the simulation film is arranged between the puncture channel and the bleeding hole; the driving mechanism is connected with the simulation thin film, and the driving mechanism is used for driving the simulation thin film to move so as to adjust the puncture area, corresponding to the bleeding hole, of the simulation thin film; the liquid supply device is connected with the bleeding hole, the liquid supply device is used for conveying simulated plasma to the bleeding hole, or the liquid supply device is used for conveying simulated plasma in the bleeding hole outwards, the simulated film is matched with the bleeding hole to achieve high simulation of bleeding after puncture, and meanwhile dynamic simulation of different bleeding amounts is achieved in cooperation with the liquid supply device; through cooperation of the driving mechanism and the simulation thin film, rapid switching of the puncture areas corresponding to the simulation thin film is achieved, and repeated training is facilitated.

The utility model discloses an anti-loosening metal implant, and particularly relates to the technical field of metal implants, the anti-loosening metal implant comprises an alveolar bone, a mounting groove and a root canal, the mounting groove is arranged on the surface of the top end of the alveolar bone, the root canal is arranged in the mounting groove, and a limiting component is arranged in the root canal. By arranging the limiting groove and the limiting piece, before the root canal is installed, a circle of limiting groove is machined in the deep position in the installation groove, after the root canal is installed on the inner side of the installation groove through threads, the adjusting rod located in the root canal can be rotated, and under the threaded fit of the adjusting rod and the adjusting hole, the adjusting rod can be driven to drive the frustum to move upwards; in the upward moving process of the adjusting rod, the adjusting rod makes contact with the limiting piece on the inner side of the sliding groove, in the upward moving process, the limiting piece can be pushed outwards and driven to be inserted into the limiting groove so as to assist in limiting the root canal, the root canal is prevented from being disengaged from the inner side of the mounting groove, and the anti-loosening function after the metal implant is mounted is enhanced.

INSTRUMENTED ENDODONTIC FILE FOR DETERMINING ANATOMICAL DATA The present invention relates to a device for endodontic treatment of a root canal (11), comprising: - an instrumented file (20) including a passive zone (22) and an active zone (21), the active zone (21) being configured to provide position data by electromagnetic or optical radiation, - acquisition means (30) including a sensor (31), and configured to acquire position data within a system defined by the root canal (11) and the acquisition means (30), and - a treatment unit (40) connected to the acquisition means (30), and the treatment unit (40) is configured to process the position data of the active zone (21) within the system, in order to determine an anatomical datum of the root canal (11). Abstract figure: Fig. 4

The application discloses a tooth CBCT reconstruction method based on a double-branch contrast learning and a Transformer diffusion model, and relates to the technical field of medical image processing. In view of the problems that features are not aligned and global structure maintaining capability is poor when existing diffusion models process cross-modal tooth data, a double-branch variational autoencoder is first constructed, contrast learning is used to map features of in-vivo CBCT and Micro-CT to a shared latent space, and feature alignment is realized; secondly, a denoising network based on a Transformer architecture is constructed, and the global attention mechanism of the denoising network is used to learn high-frequency detail recovery from Micro-CT data guided by the aligned features. The application effectively solves the domain drift problem of clinical images and significantly improves the connectivity and clarity of micro-root canal structures.

The invention provides an auxiliary positioning device for an oral dental pulp root canal, and relates to the technical field of root canal treatment equipment. Comprising a positioning platform and a positioning frame, and the positioning platform is arranged on the positioning frame; a positioning clamp is arranged on the positioning platform, a positioning sleeve is connected to the positioning clamp through an induction line, and an inductance device is arranged on the positioning sleeve; displacement assemblies are arranged at the tail ends of the positioning clamps; the displacement assembly comprises an outer pipe and an inner pipe, and one end of the outer pipe is sleeved with one end of the inner pipe. A first motor is arranged in the outer pipe, a driving screw rod is arranged on an output shaft of the first motor, and threads are arranged on the inner side of the inner pipe and are in threaded connection with the driving screw rod; a limiting groove is formed in the inner side of the outer pipe, and a limiting protrusion matched with the limiting groove is arranged on the outer side of the inner pipe. Compared with the prior art, the device is convenient to use and adjust, accurate in positioning and capable of effectively avoiding blocking the surgical field.

The utility model relates to the technical field of oral treatment, and discloses a disposable oral instrument box which comprises a treatment box body, the treatment box body comprises a storage structure, and a tooth support and a rear forked odontoscope are placed in the storage structure. According to the treatment box, the treatment box body, the tooth support and the rear forked odontoscope are adopted, medicines, disinfection articles, treatment tools and the like can be independently stored through the storage structure in the treatment box body, and medical staff can take the medicines, the disinfection articles, the treatment tools and the like conveniently; when the root canal in the treatment tool groove is taken, the distance between the root canal and the central position of the treatment tool groove is increased through the four clamping holes, so that medical staff can take the root canal through tweezers; meanwhile, the adopted clamping assembly can clamp and store appliances and the like used in the oral cavity treatment process through a plurality of formed clamping grooves, and pollution caused by falling of the appliances is avoided.

The application relates to a root canal treatment instrument, in particular to a root canal drill and grinding system with an auxiliary positioning guide plate, which is used for root canal treatment of a diseased tooth and comprises a clamping piece, a guide piece, a handset and a bracket type guide plate; the guide piece comprises a guide piece body, a central hole and guide columns; the central hole is arranged at the center of the guide piece body, and the guide columns are symmetrically arranged at the two ends of the guide piece body and take the central hole as the center; a drill needle is arranged on the handset and passes through the central hole; the clamping piece is used for clamping and fixing the guide piece on the handset; the bracket type guide plate comprises a columnar support and a retainer connected to the columnar support; the retainer is wrapped on a fixed tooth to fix the columnar support; the columnar support is symmetrically arranged with guide column insertion slots on the two sides of the diseased tooth, and guide column insertion slot cavities matched with the guide columns are arranged on the guide column insertion slots. Compared with the prior art, the application solves the problems of poor guiding accuracy, small drilling and grinding operation space, high difficulty and narrow discharge channel in the prior art.

A bioactive deciduous tooth root canal filling paste includes: an organic hydrophobic component including a developer, a dispersing aid, and an organic solvent; the inorganic hydrophilic component comprises a bioactive alkali producing substance and anhydrous calcium hydrogen phosphate, and the bioactive alkali producing substance comprises silicate and metal oxide; the particle size of the inorganic hydrophilic component is less than 70 microns; the mass ratio of the organic hydrophobic component to the inorganic hydrophilic component is (2: 3)-(7: 3). By accurately regulating and controlling multi-ion synergistic release and matrix degradation kinetics, integration of multiple functions of antibacterial property, osteogenesis inductivity, long-term dimensional stability, degradability and deciduous tooth physiological absorption rate matching is synchronously realized, and an ideal solution is provided for deciduous tooth root canal treatment.

The utility model relates to the technical field of medical instruments, and discloses a root canal linear passage bur, which comprises a drill bit, a bur body and a connecting part, the drill bit comprises a drill body and a drill tip, the drill body is detachably connected with the bur body, emery is sprayed on the outer wall of the drill body by adopting a sand blasting process, a first external thread is arranged on the outer wall of the drill tip, and the length of the drill tip is 2-3mm; the first external threads are arranged on the outer wall of the drill tip, and the corundum is sprayed on the drill body by adopting a sand blasting process, so that the drill tip can move more stably when being drilled into teeth due to the arrangement of the first external threads, the sprayed corundum can enhance the overall strength of the drill body, and meanwhile, the drill tip is prevented from being damaged. The drill bits and the needle body are detachably connected, so that a doctor only needs to prepare a plurality of drill bits of different models before an operation and replace the drill bits according to actual requirements in the operation process, and compared with the prior art, the drill has the advantages that the drilling capacity is good, the occupied area of an instrument tray is reduced, and the operation of the doctor is facilitated.

The utility model relates to the technical field of medical instruments and discloses a multi-blade efficient medullary cavity file which comprises a medullary cavity file body, the outer surface of the medullary cavity file body is provided with a first cutting edge and a second cutting edge, one side of the upper end of the medullary cavity file body is fixedly connected with a connecting rod, and the upper end of the medullary cavity file body is fixedly connected with a connecting port. Due to the arrangement of the first cutting edge and the second cutting edge, in the using process, the large cutting edge of the first cutting edge is used for removing large dental pulp tissue and humus, and the second cutting edge is used for conducting fine trimming on the inner-layer pulp cavity wall. The two layers of cutting edges work cooperatively, the overall filing efficiency can be improved, the flatness and smoothness of the inner wall of the medullary cavity can be guaranteed, follow-up treatment operation is facilitated, the connecting area is increased through the arrangement of the side clamping plates and the middle hole, and therefore the connecting stability is improved.

The application relates to the technical field of medical image processing, in particular to a root canal system three-dimensional reconstruction and isthmus identification method and system based on a CBCT image, which comprises the following steps: acquiring CBCT original image data; pre-processing the CBCT image; performing root canal system three-dimensional reconstruction on the pre-processed CBCT image; performing clustering segmentation based on a differential geometry theory on root canal cross sections in the root canal system three-dimensional reconstruction result to extract isthmus features, wherein the clustering segmentation based on the differential geometry theory comprises the following steps: super voxel segmentation driven by curvature flow, elliptical fitting and long axis extraction on a Riemann manifold, isthmus feature extraction by combining a geodesic distance field and a Hough transformation; and marking the isthmus of the root canal system three-dimensional reconstruction result by using the isthmus features, wherein the application realizes accurate identification of a root canal isthmus by introducing the differential geometry theory, improves identification accuracy, and significantly improves the success rate of root canal treatment.

The utility model discloses automatic external diameter measuring equipment, which comprises a clamping device, a moving device, a positioning device and a measuring device, the positioning device is arranged between the clamping device and the measuring device, the clamping device is connected to the moving device in a sliding mode, the clamping device can move in the direction close to or away from the positioning device and the measuring device, and when the clamping device moves in the direction close to the positioning device and the measuring device, the clamping device can move in the direction close to the positioning device and the measuring device. And then the measuring device is moved to the positioning device. The outer diameter automatic measuring equipment measures the outer diameter of the root canal file by fitting the actual application scene, the measuring result is infinitely close to the size of a hole drilled in dental pulp during actual rotation of the root canal file, the measuring result is accurate, the measuring period is short, the result can be obtained at each point in about 1.5 seconds, and the measuring efficiency is high. The method has the beneficial effects of high measurement precision and high efficiency.

The invention discloses a flushing device for pulpitis root canal treatment, and belongs to the technical field of medical instruments. According to the technical scheme, the flushing device for pulpitis root canal treatment comprises a handle assembly, the two ends of the handle assembly are a flushing end and a connecting end respectively, the flushing end is rotationally connected with a flushing head assembly, and the spraying direction of liquid is adjusted by rotationally adjusting the flushing head assembly; the spraying direction of liquid is adjusted by rotating and adjusting the flushing head assembly, so that the root canal flushing device can flexibly adapt to the shape of a root canal and has the advantages of reducing flushing blind areas and improving operation flexibility, in addition, the external dosing mechanism at the connecting end can be used for root canal flushing, the external negative pressure suction device can be used for root canal negative pressure liquid suction, and the application scene is wide.

The application particularly relates to an adaptive dental pulp file, comprising: a mounting seat configured to be detachably connected with a rotating end of an electric rotating tool; a gum cleaning shaft comprising a shaft body and a first gum cleaning part made of a flexible material, one end of the shaft body being connected with an end face of one end of the mounting seat, and one end of the first gum cleaning part being connected with the other end of the shaft body; the first gum cleaning part comprising: a cluster of first gum cleaning hairs coaxially arranged with the shaft body; from the direction of the mounting seat to the direction of the first gum cleaning part, the cross-sectional area of the first gum cleaning hairs gradually decreases until the end of the first gum cleaning hairs away from the mounting seat is in a pointed structure; and a guide spring connected with the mounting seat and sleeved on the gum cleaning shaft; the adaptive dental pulp file is configured to rotate at a speed of 8000 RPM to 12000 RPM to facilitate the first gum cleaning hairs to clean the dental pulp in the root canal.

The utility model provides a root canal file capable of accurately measuring the working length of a root canal, and relates to the field of root canal files, the root canal file capable of accurately measuring the working length of the root canal comprises a handle, a needle body and a limiting device, the top of the handle is provided with a placing groove, the bottom wall of an inner cavity of the placing groove is provided with a through hole, and the needle body is movably inserted into the through hole in the inner wall of the placing groove; the root canal file comprises a needle body and a limiting device, a containing groove is formed in the needle body, a plurality of length prompting areas are arranged on the surface of the needle body at equal intervals, the limiting device is installed in the containing groove, and the limiting device is used for limiting the needle body. In addition, when the needle body is damaged, the needle body can be mounted or dismounted by rotating the first lantern ring, so that the needle body can be replaced independently, and the effect of saving cost is achieved.

This invention provides a root canal irrigation device with a circumferential diffused light source, including an instrument handle with an internal mounting cavity and an opening at one end; a motor housed within the mounting cavity, with its drive shaft extending axially from the opening; a working tip connected to the drive shaft; a light guide sleeve fitted onto the drive shaft, the front end of which has a convex surface with a rounded transition, and the rear end of which has a concave surface with a corresponding rounded transition; and a lamp plate housed within the mounting cavity and spaced behind the light guide sleeve. Through the rounded transition structure of the convex front and concave rear ends of the light guide sleeve, combined with the rear-mounted lamp plate, a circumferential diffused light source optical effect is achieved, simultaneously covering the root canal operating area and the external oral cavity observation area within the working tip's front range, meeting the multi-scenario lighting needs for root canal irrigation at different depths.

The invention particularly relates to a self-adaptive dental pulp file, which comprises a mounting seat, which is configured to be detachably connected with a rotating end of an electric rotating tool; the glue removing shaft comprises a shaft body part and a first glue removing part made of a flexible material, one end of the shaft body part is connected with the end face of one end of the mounting seat, and one end of the first glue removing part is connected with the other end of the shaft body part; the first glue cleaning part comprises a cluster of first glue cleaning hairs which are coaxially arranged with the shaft body part; from the direction of the mounting seat to the direction of the first glue cleaning part, the cross sectional area of the first glue cleaning hair is gradually reduced until one end, far away from the mounting seat, of the first glue cleaning hair is of a sharp structure; one end of the guide spring is connected with the mounting seat, and the glue cleaning shaft is sleeved with the guide spring; the self-adaptive dental pulp file is configured at the rotating speed of 8000 RPM to 12000 RPM so as to promote the first gutta-percha cleaning hair to clean the gutta-percha in the root canal.

ENDODONTIC FILE FOR HIGH-SPEED ROTATION The invention relates to an endodontic file (1) equipped with a blade (14) having at least one cutting lip (13) which has: - a cutting face (Fs), delimited by the cutting lip (13) and configured to come against tissues to be removed from a root canal when the instrument is driven in a rotation in the direction (R); - a clearance face (Fd), delimited by the cutting lip (13), and opposite to the cutting face (Fs); - the cutting lip (13) having a negative cutting angle (c) and a clearance angle (a) greater than or equal to 0, measured in the direction (R). According to the invention: - a cutting angle (b) is between 95° and 150°, and a ratio between the surface area of ​​the blade (So) and the surface area of ​​a circumscribed circle (Se) of the blade is between 40% and 65%. Abstract figure: Fig. 2

The invention discloses a bionic root canal file and relates to the technical field of root canal treatment, the bionic root canal file comprises a transmission handle and a working part which are connected with each other, the working part is of a conical rod-shaped structure, continuous or discontinuous cutting edges are arranged on the peripheral wall of the working part in the axial direction, and the cutting edges comprise deep cutting edges and shallow cutting edges; the cutting edge radius of the deep cutting edge is larger than the cutting edge radius of the shallow cutting edge, the cutting edge radius of the shallow cutting edge is larger than or equal to the radius of the working part where the shallow cutting edge is located, the deep cutting edge is arranged on the working part in a waved plate wrapping mode, and the shallow cutting edge is arranged between the wave crest and the wave trough of the deep cutting edge. The deep cutting edges and the shallow cutting edges are distributed in the circumferential direction of the working part; perfect cooperation of torsion flexibility and cyclic fatigue resistance is achieved, the threads of the shallow cutting edges provide flexibility, meanwhile, the deep cutting edges provide structural rigidity and are responsible for main cutting tasks, the cutting efficiency is ensured, and meanwhile, the arrangement of the deep cutting edges and the shallow cutting edges facilitates discharging of chippings in the root canal cutting process.

The utility model discloses a simulation root canal flushing teaching device, comprising a transparent mounting seat, a simulation root canal flushing teaching device, a simulation root canal flushing teaching device, a simulation root canal flushing teaching device and a simulation root canal flushing teaching device, the base is transparent and is vertically inserted into the mounting groove; the tooth model comprises a tooth root part, a tooth crown part and a root canal part, the tooth root part is arranged in a light color and embedded in the base, the tooth crown part is arranged in a transparent shape and located on the upper end face of the base, and the root canal is arranged in a dark color and embedded in the tooth root part. According to the utility model, the transparent mounting seat and the base are arranged, the tooth model is arranged on the base, the real tooth shape is simulated, teaching and experiment are facilitated, different positions in the tooth model are dyed with different colors, each part can be identified and operated and practiced conveniently, and the teaching experience is improved. Meanwhile, the progress and efficiency of each step of operation can be visually seen and felt in real time in simulated treatment, some improper treatment measures can be corrected in time, and the teaching progress is guaranteed.

The utility model discloses a bending device of a work tip for a root canal washing device, which comprises a base, a fixing part, an auxiliary bending part and a bending part, the fixing part comprises a fixing seat fixedly arranged on the base, the fixing seat is provided with a fixing groove matched with a work head for the root canal washing device, and the auxiliary bending part is provided with a bending groove matched with the work head for the root canal washing device. The working tip for the root canal washing device is arranged in the working head; the auxiliary bending piece penetrates through the fixing base to be installed on the base. The bending part comprises a rotating seat and a bending wheel, one end of the rotating seat is arranged on the auxiliary bending part in a sleeving mode, and the rotating seat is suitable for being rotationally installed on the base with the auxiliary bending part as the center; the bending wheel is installed on the rotating base, a bending cavity is formed between the bending wheel and the auxiliary bending piece, the work tip is suitable for being in contact with the outer wall face of the auxiliary bending piece and located in the bending cavity when installed in place, the work tip can be rapidly bent, operation is convenient, and applicability is high.