327results about "Nerve needles" patented technology

Systems and methods for using a liquid jet apparatus for dental treatments are disclosed. In one implementation, the liquid jet apparatus may include a handpiece configured to deliver a high velocity liquid jet to a desired location in the mouth of a patient. The handpiece may include a positioning member having a channel through or along which the jet can propagate. The positioning member may have a distal end portion configured to be at least partially disposed in a pulp cavity, canal space, or opening in the tooth under treatment. During operation, the jet may impact an impingement surface of the distal end portion of the positioning member and be deflected as a spray through one or more openings in the distal end portion. The liquid jet apparatus may be used for root canal treatments.

A dental treatment system can include a console, a tooth coupler, and an interface member that provides at least one of fluidic, electrical, mechanical, and data communication between the tooth coupler and the console. The tooth coupler (which may comprise a handpiece or a treatment cap) can act as a working end of the system to administer a suitable treatment procedure, such as a cleaning procedure, an obturation procedure, a restoration procedure, etc. The tooth coupler can removably engage the interface member such that the clinician can easily engage and disengage the tooth coupler and interface member.

A method treating a root canal in a tooth by introducing into the pulp chamber of a tooth and pulsing a laser light into the fluid reservoir so as to disintegrate pulp within the root canal without generation of any significant heat in said liquid fluid so as to avoid elevating the temperature of any of the dentin, tooth, or other adjacent tissue more than about 5° C.

An apparatus for treating a tooth can include a fluid platform comprising a wall and a chamber at least partially defined by the wall. The fluid platform can be disposed against a tooth to retain fluid in the chamber and provide fluid communication between a treatment region of the tooth and the chamber by way of an access port. The chamber can have a central axis. A liquid supply port can be disposed to direct a liquid stream across the chamber along a stream axis non-parallel to the central axis. A suction port can be exposed to the chamber. The chamber can have a maximum lateral dimension in a plane extending substantially transverse to the central axis, the plane delimited by the wall along a boundary. A projection of the suction port onto the plane can be closer to the boundary than to the central axis of the chamber.

The invention discloses a portable root canal cleaning device and a use method thereof. The portable root canal cleaning device comprises a first tube, a first piston movably arranged in the first tube, a first needle connected to the bottom of the first tube, a second tube, a second piston movably arranged in the second tube and a second needle connected to the bottom of the second tube. The device further comprises a pulling rope, one end of the pulling rope is connected to the first piston, the other end of the pulling rope is connected to the second piston, the pulling rope movably penetrates through a middle guide piece, and the middle guide piece is located above the upper limit of the stroke of the first piston and the upper limit of the stroke of the second piston. The first piston and the second piston can be linked through the traction rope, so that an additional positive pressure or negative pressure device is not needed to drive flushing fluid to flow in the flushing and swinging washing process, the cost of equipment is effectively reduced, and the equipment is more convenient to carry, transport, replace and maintain.

An endodontic microcannula system for evacuation of root canal contents from a root canal of a patient. The system includes a microcannula for insertion into the root canal, a handpiece for vibrating the microcannula while it is disposed within the root canal, and an irrigation fluid reservoir for supplying irrigation fluid to the root canal, an a vacuum source for drawing the fluid and root canal debris into the microcannula and out of the root canal.

The invention relates to the field of root canal therapy, in particular to a root canal therapy doctor preparation process optimization system and method and a storage product. Working data of a motor of the root canal device in a first time period are obtained, the first time period comprises N time nodes, and N is a natural number larger than or equal to 1; wear data of the file needle assembly at each time node is obtained; and acquiring medical data of the treatment progress of the root canal at each time node. And integrating the working data, the wear data and the medical data to generate an operation optimization suggestion. According to the working data of the motor and the abrasion data of the filing needle, the operation habit and tendency of a doctor in the treatment process can be known, and meanwhile, improvement suggestions are given according to comparison of the operation tendency of the doctor and standard parameters. Furthermore, in combination with the recovery condition of the patient in the medical data, the optimal operation suggestion is given according to the treatment habit of the doctor, the optimal balance between the operation and the treatment effect is sought, and the risk of needle filing instrument separation is reduced.

Apparatus and methods for endodontic treatment of teeth provide effective cleaning of organic material (such as pulp and diseased tissue) from the root canal system. In an embodiment, a compressor system generates high pressure liquid (e.g., water) that flows through an orifice to produce a high-velocity collimated jet of liquid. The high-velocity jet is directed toward a surface of a tooth, for example, an exposed dentinal surface, and impingement of the jet onto the surface generates an acoustic wave that propagates throughout the tooth. The acoustic wave effectively detaches organic material from dentinal surfaces and tubules. The detached organic material is flushed from the root canal system by the liquid jet and / or by additional irrigation.

Disclosed are an oral hygiene device and an oral hygiene device system, and a method of using the same. The oral hygiene device includes a housing, a battery, a control chip, a light source, and a light guide needle. Battery, control chip and light source are encapsulated in housing to form the oral hygiene device. The housing includes a connector, and light source is positioned in the center of connector. The light source is electrically connected to control chip and battery. The light guide needle is mounted on a head of the housing using a mortise-tenon structure. The light guide needle includes a mounting joint, and is in mortise-tenon connection and in interference fit with the connector through the mounting joint. The oral hygiene device has less damage to teeth or healthy tissue in the oral cavity, and has a good disinfection effect on bacteria in oral cavity.

The utility model discloses a negative pressure suction root canal flushing device and system, the device comprises a handle, the handle is connected to a flushing tip via a curved pipe, a liquid inlet pipe and a liquid extraction pipe are also arranged on the handle, a gap is arranged between the curved pipe and the liquid extraction pipe, the liquid inlet pipe is connected to the outlet end of the curved pipe via the gap, and the liquid extraction pipe is connected to the inside of the flushing tip. The utility model not only simplifies the root canal flushing work and improves the flushing efficiency, but also can eliminate the risk of positive pressure flushing liquid flushing out of the apical foramen from the root source, avoid the flushing liquid from damaging the periapical tissue, prevent the root canal infected substances carried by the flushing liquid from infecting the periapical tissue, improve the safety of root canal flushing, and improve the patient experience.

A root canal treatment system that can reduce the number of devices and treat root canals easily and in a short period of time is provided. [Solution] The root canal treatment system 1A is a system comprising an intra-root canal electrode 31A placed in a root canal 2a of a subject's tooth 2, a counter electrode 32 placed on the subject's body, a power supply unit 11A placed outside the subject's oral cavity and supplying an apex position detection signal as electricity to the intra-root canal electrode 31A and the counter electrode 32, and an apex position detection unit 12c that detects the position of the apex 2a1, which is the tip of the root canal 2a, while the apex position detection signal is applied to the intra-root canal electrode 31A and the counter electrode 32. The system comprises a catalyst unit 40 placed in the intra-root canal electrode 31A, which generates free radicals in the injection liquid IS injected into the root canal 2a by causing a catalytic action by electricity in the injection liquid IS.

The present disclosure relates to a method, device, equipment and medium for determining operation planning data of teeth. It includes: obtaining a three-dimensional scanning image of a target oral cavity and coordinate data of tooth feature points in the target oral cavity; based on the three-dimensional scanning image, performing pulp opening planning and root canal planning on the tooth to be repaired in the target oral cavity, and obtaining pulp opening planning image data and root canal planning image data of the tooth to be repaired; determining a first mapping relationship between tooth feature points and tooth pixel points according to the coordinate data of tooth feature points and the coordinate data of tooth pixel points contained in the three-dimensional scanning image; obtaining operation planning data of the tooth to be repaired based on the first mapping relationship, pulp opening planning image data and root canal planning image data. Thus, the operation planning data of the tooth to be repaired is determined by using the data at the image level of the target oral cavity and the coordinates of the actual feature points on the tooth, so as to guide the operation tool to accurately remove the infected part of the root canal in the tooth to be repaired based on the operation planning data.

To provide a root canal treatment system capable of treating a root canal simply and in a short period of time. [Solution] The root canal treatment system 1 comprises a catalyst unit 40 placed in injection liquid IS injected into a root canal 2a of a tooth 2 of a subject, an excitation energy imparting unit 30A placed in the subject's oral cavity and causing the catalyst unit 40 to undergo a catalytic action by imparting excitation energy to the catalyst unit 40, an excitation energy supply device 10A placed outside the subject's oral cavity and supplying excitation energy, and a transmission unit 20A that transmits the generated excitation energy to the excitation energy imparting unit 30A, and the catalyst unit 40 undergoes a catalytic action by the excitation energy, generating free radicals in the injection liquid IS.

An apparatus for treating a tooth or gum tissue is disclosed. The apparatus can include a tooth cap for supporting a treatment device during a treatment procedure. The tooth cap can comprise a platform to support the treatment device. The platform can include an access port to provide a portion of the treatment device with access to a treatment region of the tooth or gum tissue. The tooth cap can also include a wall coupled with and angled relative to the platform, the wall configured to be attached to the tooth or gum tissue during treatment.

Systems and methods for using a liquid jet apparatus for dental treatments are disclosed. In one implementation, the liquid jet apparatus may include a handpiece configured to deliver a high velocity liquid jet to a desired location in the mouth of a patient. The handpiece may include a positioning member having a channel through or along which the jet can propagate. The positioning member may have a distal end portion configured to be at least partially disposed in a pulp cavity, canal space, or opening in the tooth under treatment. During operation, the jet may impact an impingement surface of the distal end portion of the positioning member and be deflected as a spray through one or more openings in the distal end portion. The liquid jet apparatus may be used for root canal treatments.

Examples of apparatus, methods, and compositions for endodontic treatments are described. The apparatus can include a fluid platform configured to substantially retain fluid in a tooth chamber during treatment. The fluid platform can help maintain fluid circulation in the tooth chamber as fluid flows into and out of the tooth chamber. The apparatus can also include a pressure wave generator configured to generate acoustic waves that can be used for cleaning root canals and tooth surfaces in the tooth chamber. Examples of pressure wave generators include a liquid jet, an electromagnetic energy delivery device, and an ultrasonic device. The fluid can include antiseptic or antibacterial solutions to assist in tooth cleaning. The fluid may be degassed to have a reduced dissolved gas content (compared to non-degassed fluids used in endodontic treatments), which may improve the effectiveness of the pressure wave generation or the cleaning.

Aspects of the present disclosure relate to systems, devices and methods for performing a surgical step or surgical procedure with visual guidance using an optical head mounted display. Aspects of the present disclosure relate to systems, devices and methods for displaying, placing, fitting, sizing, selecting, aligning, moving a virtual implant on a physical anatomic structure of a patient and, optionally, modifying or changing the displaying, placing, fitting, sizing, selecting, aligning, moving, for example based on kinematic information.

The invention discloses a double-side-opening palm pushing type negative pressure root canal irrigation syringe, and relates to the technical field, the double-side-opening palm pushing type negative pressure root canal irrigation syringe comprises a negative pressure suction tube, the outer wall of the negative pressure suction tube is fixedly sleeved with a blocking cover, the negative pressure suction tube is axially provided with a negative pressure channel, the blocking cover is internally provided with an irrigation fluid channel, and one end of an irrigation needle is fixedly inserted into the side wall of the blocking cover; the end of the flushing needle head is of a closed structure, a first opening and a second opening which are oppositely arranged are formed in the side wall of the end of the flushing needle head, the blocking cover is detachably connected with the needle cylinder, a piston is inserted into the needle cylinder in a sliding mode, and a piston handle is fixedly inserted into the axial side wall of the piston. The root canal flushing device is suitable for root canal flushing in the root canal treatment process, chippings generated in the root canal preparation process can be removed in time through the negative pressure suction effect of the root canal flushing device, the possibility that a flushing fluid is pressed out of a root tip hole is reduced through the flushing needle head with the openings in the two sides, the disinfection and cleaning capacity of a flushing agent on a root canal system is improved, and meanwhile the root canal flushing device is convenient to use. The palm-pushing type handle is convenient for doctors to operate, and the flushing safety and efficiency are improved.

A light-based dental treatment system includes a handle generator having a generator housing and at least one light element configured to generate therapeutic light. The handle generator includes an alignment collet having a light passage extending along a movable interior collet profile. At least one delivery shaft assembly is selectively coupled with the handle generator. The at least one delivery shaft assembly includes a delivery shaft having proximal and distal shaft profile and a proximal light port. A distal light port of the delivery shaft is configured to deliver therapeutic light from the delivery shaft to a treatment location. The interior collet profile of the alignment collet is configured to grasp the delivery shaft and align the proximal light port with the at least one light element.

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 utility model relates to the technical field of root canal treatment, and discloses a guide drill and a guide device for root canal treatment. The utility model includes a guide drill consisting of a guide drill tail handle, a guide drill polished rod, a necking rod, a triangular drill rod, and a triangular drill head, and also includes a 3D printed matching tooth panel printed according to the patient's tooth surface shape, the 3D printed matching tooth panel is fixed on a stainless steel alloy plate, and a guide drill sleeve is fixedly provided through the stainless steel alloy plate and the 3D printed matching tooth panel, and the inner diameter of the guide drill sleeve is consistent with the outer diameter of the upper section of the necking rod. Compared with ordinary fiber post drills, this product is more conducive to cutting in calcified root canals and opening up calcified root canals due to its greater cutting force at the tip; and the smooth collar is designed at the upper end, which has no cutting force on the guide plate ring, which is conducive to protecting the guide plate and improving accuracy; the overall shape is combined with the root canal shape, which is conducive to the treatment of calcified root canals.

A signal supply unit (11) in a root canal treatment system (1) can supply a wetness detection signal for detecting the wetness of a root apex (2a1) to a root canal electrode (31) and a counter electrode (32). The root canal treatment system (1) includes: an operation unit (13) that is operated to switch between a state in which the signal supply unit (11) supplies an apical position detection signal and a state in which the signal supply unit (11) supplies the wetness detection signal; and a display unit (14) and a sound output unit (15) as notification units for notifying the electrical conduction state of the root canal electrode (31) and the counter electrode (32) which have been supplied with the wetness detection signal.

The present invention discloses an AR-based three-dimensional perspective imaging root canal monitoring system, which includes three parts: a three-dimensional perspective modeling process, a local tracking and amplification process, and a root canal modeling real-time detection process. During use, the present invention intermittently detects the real-time penetration distance during root canal treatment to directly feedback the actual treatment effect during root canal treatment, which can not only improve the treatment effect, but also reduce the secondary damage to the patient.

A needle assembly for an endodontic apparatus, comprising: a head for removably coupling the needle assembly to a handpiece; and a needle extending from the head at a proximal end to a distal tip, a lumen of the needle extending to an opening at the tip to deliver fluid into a root canal, wherein the needle tip is positionable within a portion of the root canal; and the lumen has a diameter to enable fluid to be delivered at a delivery pressure in excess of a threshold cavitation pressure, wherein delivery of fluid through the needle at a delivery pressure in excess of a threshold cavitation pressure into the root canal generates a backflow in the root canal that facilitates forming of a cloud of inertial cavitation within the fluid in the root canal forward of the needle tip.

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.

A vibration-side housing is attached to a tip of a handle-side housing, and a motor in which a plate cam is attached to a rotating shaft is housed. A vibration tube mounting opening opens at distal end part of the vibration-side housing, and a vibration tube is mounted thereon. The vibration tube is provided to vibrate in a forward-backward direction while urged in the plate cam direction via a spring with respect to the vibration-side housing. The vibration tube contacts with the plate cam via a roller at a rear end part. A reamer mounting opening opens at a tip of the vibration tube, and receives and tightly holds an insertion part of the reamer. The reamer including the bendable needle part is attachable / detachable to the vibration-side housing.

The oral cavity washing needle comprises a nickel-titanium alloy tube body, the nickel-titanium alloy tube body is of a drawing forming structure, the outer diameter of the nickel-titanium alloy tube body ranges from 0.20 mm to 3.5 mm, and the inner diameter of the nickel-titanium alloy tube body ranges from 0.1 mm to 3.3 mm; the length of the nickel-titanium alloy pipe body ranges from 10 mm to 70 mm. A notch is formed in one end of the nickel-titanium alloy pipe body, the notch is communicated with an inner hole of the nickel-titanium alloy pipe body, the notch penetrates through the end portion of one end of the nickel-titanium alloy pipe body, and a stamping needle wall is formed on the residual wall of the nickel-titanium alloy pipe body at the position of the notch. And the end part of the stamping needle wall is warped towards the notch to form a guide wall. The oral cavity flushing needle is made of the nickel-titanium alloy pipe, is not prone to being bent and broken when bent, and can reduce the risk of breakage. The end of the stamping needle wall is warped towards the notch to form a guide wall, and the flushing opening defined by the formed guide wall can reduce damage to the root tip area in a lateral water outlet mode.

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.

The utility model discloses a device for taking out filler in a root canal, and relates to the technical field of oral medical instruments, the device comprises a clamping body and a sleeve, the clamping body comprises a clamping rod and at least three clamping claws, and the clamping rod is provided with a first through hole extending in the direction of the center line of the clamping rod; one end of each clamping jaw is fixedly connected with one end of the clamping rod, and the other end of each clamping jaw can extend in the direction away from the other end of the clamping rod and away from the center line of the clamping rod. The clamping rod is sleeved with the sleeve, and the sleeve and the clamping rod can move in the direction of the center line of the clamping rod. The sleeve can extrude the clamping jaws by moving in the direction close to the clamping jaws, the clamping jaws are in a closed state, and the clamping jaws can reset to be in an open state when being disengaged from the sleeve. The utility model has the advantages of higher safety, better taking-out effect, simple structure and convenience in application.