18results about "Nerve needles" patented technology

Method for electronically indicating a concentration of an irrigation solution in a root canal (RC) of a tooth (T), using a device able to be electrically connected to an endodontic instrument engaged in the canal and to a labial electrode, and including a screen to display the progression of the instrument in said canal relatively to a critical apical point of reference such as the cemento-dentinal junction (CDJ), said device being furthermore able to measure, in the vicinity of said point of reference, by conductimetry, a concentration of an electrolyte irrigation solution injected into the root canal.

In some embodiments, the distal end of an endodontic brush unevenly (e.g., not along a line perpendicular to the axis of the brush). Optionally, the uneven strands will contact the walls of a channel more evenly and / or will have an increased stirring effect than an evenly cut end may be cut using an abrasive cutter (e.g., a grinding wheel) and / or a laser and / or an electrical discharge machining (EDM) cutter. Optionally, a grinding wheel will rotate opposite the winding of the wire. Optionally, a rounded end may be formed on the wire. In some embodiment, a coupling between an endodontic brush and a handpiece is configured to be held rotationally to the handpiece by friction and / or locked longitudinally into the handpiece by an interference element. In some embodiments, an edge of the brush is roughened. Optionally, the brush may be bent and / or eccentric.

This invention provides a pulse therapy system capable of rapidly controlling the output of pulsed current. [Solution] The pulse therapy system 1A comprises an intra-root canal electrode 30A placed on the affected area of ​​the subject, a counter electrode 40 placed on the subject's body, a pulse current generation unit 12 that generates a pulse current from a DC power supply unit 11 and supplies it to the intra-root canal electrode 30A and the counter electrode 40, a power supply current monitoring unit 14 that monitors the current value of the current supplied to the pulse current generation unit 12, and a control unit 15 that changes the output of the pulse current by controlling the pulse current generation unit 12 based on the current value.

The present invention relates to a device for driving an endodontic file head of an endodontic device and for operating a remote pump, the device comprising:a gear for the connection with the endodontic file head;a drive shaft for rotating the gear and for rotating at least one magnet;a first cylindrical element surrounding the drive shaft;a rotatable magnet holding means surrounding the first cylindrical element;at least one magnet fixed in the rotatable magnet holding means;a coil surrounding the rotatable magnet holding means;a second cylindrical element surrounding the coil;a central processing unit;an inner encoder on the central processing unit for measuring the velocity of the drive shaft;a transmitter;an antenna for sending a signal to a remote pump; andat least one sleeve interlinked with the drive shaft for moving the drive shaft by a motorized power handle.

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.

The application discloses a kind of intelligent preparation systems of laser navigation milk teeth root canal, it is related to milk teeth root canal treatment field, including: image processing module, self-checking registration module, structure acquisition module, spectral processing module, anomaly detection module, fusion determination module, compensation tracking module, digital modeling module, simulation learning module, trajectory generation module, execution monitoring module, safety protection module, interactive command module and record audit module;The application can more accurately distinguish infected dentin and healthy dentin, reduce the risk of misjudgment or missing infected areas, effectively reduce the risk of root tip penetration and root tip tissue damage, so that the laser cutting process always revolves around the real infected area, both can fully remove infected tissue, and can maximize the retention of healthy dental structure, improve root canal preparation efficiency and safety, reduce the dependence of doctors on experience judgment, so that milk teeth root canal preparation operation is more standardized and repeatable.

Provided is a laser-induced plasma cavitation-activated root canal irrigation device, which comprises: a working host (110), a light guide member (120), and a working hand tool (130). The working host (110) is provided with a laser generation module, and the light guide member (120) is connected to the laser generation module and the working hand tool (130). The laser generation module is configured to generate a laser beam. The light guide member (120) is configured to transmit the laser beam generated by the laser generation module to the working hand tool (130). The working hand tool (130) is configured to focus the received laser beam into an irrigation liquid (21) in a pulp cavity (20), utilizing the laser energy to generate a photoinduced breakdown effect within the irrigation liquid (21) in the pulp cavity (20), thereby inducing plasma cavitation to activate the irrigation liquid (21) in the root canal for irrigating the root canal.

The present application relates to the technical field of root canal solution delivery control, and discloses a control method, device and system for solution delivery based on multiple channels, wherein when the input channel corresponding to the required solution is opened, other channels are closed, so that the solution is input from the channel to the total delivery pipeline; under the control of the control component, the solution is accurately delivered to the root canal site, the accuracy and efficiency of the delivery control of the solution required for root canal treatment (such as flushing and disinfection) are improved, and the root canal inner wall is less likely to be damaged due to excessive flow or the effect of complete treatment cannot be achieved due to insufficient flow; by setting multiple input channels and separately setting control valves, multiple solutions can be adapted without manual solution replacement and control; through the cooperative control of the control valves, the conduction of the solution of any channel is realized, the flexible and orderly switching and control of the multiple input channels are realized, the cross contamination of the solution is reduced, the purity of the solution is ensured, and thus the efficiency, safety and accuracy of the root canal treatment are improved.

A pulse therapy system (1A) comprises: an intracanal electrode (30A) placed on an affected part of a subject; a counter electrode (40) placed on the body of the subject; a pulse current generation unit (12) that generates pulse current from current from a DC power supply unit (11) and supplies the pulse current to the intracanal electrode (30A) and the counter electrode (40); a power supply current monitoring unit (14) that monitors the current value of the current supplied to the pulse current generation unit (12); and a control unit (15) that controls the pulse current generation unit (12) on the basis of the current value to change a pulse current output.

The utility model belongs to handheld dental medical equipment technical field relates to a kind of swabbing bending mobile phones and handheld dental medical equipment.Swabbing bending mobile phone includes: movement component;Driving element, the driving element is connected in the movement component, for driving the rotation of the movement component;Swabbing component, the swabbing component is connected in the movement component, when the movement component rotates, the end of the swabbing component away from the movement component is circular motion.Driving element can drive the rotation of movement component, to this end the end of swabbing component away from movement component is circular motion.When user needs to clean root canal lateral wall, the end of swabbing component away from movement component can be inserted into root canal, by the rotation of swabbing component, 360 ° horizontal plane swabbing is automatically realized, and then the efficiency and precision of root canal swabbing is improved.

The application belongs to the technical field of ultrasonic transducer driving of oral medical equipment, and specifically discloses a composite waveform driving device and method for an ultrasonic transducer in a root canal washing device. The device comprises, in sequence, a control module, a signal generation module, a waveform composite module, a power amplification module, an impedance matching module, an interface module, and a feedback monitoring module electrically connected with the control module and the interface module; the control module integrates an improved PID algorithm, the signal generation module generates a programmable basic waveform, the waveform composite module generates a composite waveform by proportional superposition, and the feedback monitoring module realizes real-time detection of multiple parameters. The method realizes transducer driving through parameter initialization, basic waveform generation, composite waveform synthesis, power amplification and impedance matching, combined with frequency tracking by the phase-locked + maximum current method, closed-loop feedback regulation of improved PID power regulation and temperature protection. The application takes into account the cleaning effect and safety, improves the driving stability, reduces the energy consumption, prolongs the service life of the transducer, and is suitable for various root canal washing scenes.

A root canal cleaning device according to one embodiment of the present invention comprises: an acoustic pressure generating unit that operates in response to the electric input; a handpiece housing that accommodates the acoustic pressure generating unit; a coolant passage formed inside the handpiece housing; a coolant inlet that communicates with the coolant passage formed inside the handpiece housing; and a cleaning solution nozzle formed in the handpiece housing, wherein an ultrasonic acoustic pressure applied to a coolant is transmitted to a cleaning solution by the acoustic pressure generating unit, and vapor bubbles are generated in the cleaning solution by the transmitted ultrasonic acoustic pressure, and target contaminants inside the tooth including the root canal is removed by the action of the vapor bubbles and the cleaning solution on a tooth being treated. The cleaning solution includes a degassed liquid.

The application provides a multifunctional apical area blood leading device applied to a dental pulp blood supply reconstruction operation and relates to the technical field of the dental pulp blood supply reconstruction.The multifunctional apical area blood leading device applied to the dental pulp blood supply reconstruction operation comprises a holding mechanism, a fixing mechanism is fixedly arranged below the holding mechanism, a main body mechanism is arranged through the holding mechanism and the fixing mechanism, the main body mechanism is fixed between the holding mechanism and the fixing mechanism, a rubber stopper is arranged on the surface of the main body mechanism, the main body mechanism comprises a through rod, a cutting blade is arranged at the bottom end of the through rod, a blood leading head is fixedly arranged at the bottom end of the cutting blade, the blood leading head comprises a connecting disc, a plurality of pricking heads are fixedly arranged at the bottom end of the connecting disc, and the plurality of pricking heads are made of stainless steel.The device can brush the apical tissue during rotation, realizes rapid and sufficient blood leading, and is more convenient to operate.

The application relates to the field of root canal cleaning, and discloses a pen type apical negative pressure suction root canal flushing device, which is characterized in that the device comprises a water absorption structure and a flushing structure fixedly connected at the bottom of one end of a first root canal flushing shell; one end of the first root canal flushing shell is detachably connected at one end of a second root canal flushing shell; a first water absorption pipeline and a first flushing pipeline are fixedly arranged in the first root canal flushing shell; a flushing control switch is fixedly arranged on the outer wall of the second root canal flushing shell; a root canal flushing receiving structure for placing and receiving the second root canal flushing shell, a flushing liquid recovery tank structure for receiving flushing liquid, and a flushing liquid storage tank structure for storing and outputting flushing liquid are fixedly arranged on the top of a base structure; the base structure comprises a flushing device base and a jack; the application solves the problems that the existing root canal flushing device is difficult to reach the apical region, cannot heat the flushing liquid, has no illuminating device, and the placing base of the existing root canal flushing device has a single function.

The patent discloses a kind of maxillary anterior tooth opening marrow hole positioning method based on multi-section feature point fitting, belong to root canal treatment technical field, the present application proposes a kind of maxillary anterior tooth opening marrow hole positioning method based on multi-section feature point fitting, to solve the lack of current root canal treatment technique about the estimation method of pulp cavity entering position and hole shape;Technical points are as follows: establish maxillary anterior tooth bounding box coordinate system, carry out section division to bounding box, and judge whether it meets the requirement, and carry out curve fitting on the outer contour of root canal and the outer contour of dental crown on each section, determine feature point, then carry out path fitting to these feature points;This method can effectively solve the difficulty of maxillary anterior tooth opening marrow hole shape and position determination in root canal treatment process, improve the accuracy and success rate of root canal treatment.

The utility model provides a lighting structure and a root canal preparation machine bending machine head, and belongs to the technical field of canal preparation equipment. The illumination structure comprises a sealing protection layer, a light-emitting assembly and a light-transmitting structure. The light-emitting assembly and the sealing protective layer are integrally formed, the light-emitting assembly comprises a circuit board and a light-emitting part, and the light-emitting part is electrically connected with the circuit board; the light-transmitting structure is arranged on the sealing protection layer in a penetrating mode, and the light-transmitting structure and the light-emitting part are oppositely arranged. The light-emitting assembly and the sealing protection layer are integrally formed, so that the light-emitting assembly is arranged in the sealing protection layer, when the root canal preparation machine elbow head needs to be steamed and disinfected, due to the fact that the circuit board and the light-emitting part are both arranged in the sealing protection layer, the sealing protection layer can effectively isolate water vapor from making contact with the light-emitting assembly, and the water vapor is prevented from entering the sealing protection layer; and the circuit board is effectively protected from being damaged by water vapor generated in the cooking disinfection process.

This utility model relates to the field of root canal treatment technology, and discloses a micro-instrument storage box for endodontic treatment. It includes a micro-instrument storage box body, a storage mechanism on the surface of the body, a side cover hinged to the body, a support foot fixed to the bottom, a buckle fixed to the top, a fixing plate fixed inside the body, a buffer pad inserted inside, and a fixing block fixed inside. This device, with its side cover, support foot, buckle, and fixing plate, makes it easier to retrieve the device during operation. Rotating the side cover opens it, allowing the micro-instrument inserted in the buffer pad to be removed, improving the convenience of instrument retrieval and increasing the device's working efficiency.