51 results about "Ultrasonic scaler" patented technology

A cordless ultrasonic scaler includes a cleaning tip, an actuator, power supply, control circuitry, a water reservoir and a pumping mechanism within the hand piece. A piezoelectric stack actuator drives both the cleaning tip and pumping mechanism. The reservoir in the hand piece supplies liquid to the pump for cooling the actuator, the cleaning tip and the teeth being cleaned. The reservoir defines a battery compartment. A pair of electrodes enable recharging the battery in a docking station when the device is not in use. Controls are provided for the actuator and fluid flow.

A RFID (Radio Frequency Identification) reader is installed in the main unit of an ultrasonic scaler, which synchronizes with the antenna installed in the handpiece. Inside of The TIP (Insert or Piezo hand piece) consists of a tag, which uses RFID technology to read, write, and identify the information of the insert or tip. This provides the medical clinicians useful operation assistance, the necessary evidence on when to change to a new insert or tip, and to prevent improper usage of the insert or tip.

A torque wrench for preventing transmission of torque in excess of a threshold level to avoid damage to replaceable scaler tips and hand pieces of ultrasonic dental instruments. The torque wrench has a housing with a core seated therein, with a cam mechanism or spring engagement between the core and the housing, such that the core may remain stationary when the housing is rotated passed the threshold level of torque. The core has an axial bore to receive a connecting shaft of a scaler tip, such that a working end and a functional shank of the scaler tip are received in a chamber of the housing, with the housing acting as an isolation cage for the scaler tip.

A foot switch device for activating a dental or medical treatment apparatus is provided. The foot switch device is particularly suitable for controlling an ultrasonic dental scaler. The foot switch device includes a base plate; a central housing attached to the base plate; an upper, moveable cover mounted on the housing; and a connecting collar attached to the upper cover for retaining the cover on the housing while allowing the cover to move upwardly and downwardly relative to the housing. The central housing contains a first electrical switch for transmitting a first signal to the apparatus, and a second electrical switch for transmitting a second signal to the apparatus. An operator depresses the upper cover with his or her foot to activate the switching mechanism and control the operation of the dental or medical apparatus.

Provided is an adapter which is specifically configured for selectively maneuvering a distil tip of a scaler in close proximity to an endoscope tip of an endoscope. The adapter comprises a scaler holder and an endoscope holder. The scaler holder is configured to support the scaler. The endoscope holder is connected to the scaler holder and is configured to moveably support the endoscope. The adapter further comprises a thumbwheel which eccentrically couples the endoscope holder to the scaler holder such that rotation of the thumbwheel effectuates rotation of the endoscope tip about the distil tip of the scaler.

An ultrasonic scaler tip incorporating a multi-banded depth gauge allows a dental professional to more accurately judge the position of the tip with respect to the location of live tissue and alveolar bone. A typical cleaning operation would involve a two step process, with the depths of pockets being measured with a dental probe tip, the depths noted, and subsequently referred to during a cleaning of the teeth. The depth gauge is fabricated of durable coatings so as to be able to withstand the harsh conditions to which it will be repeatedly subjected. The banded scaler tip of the present invention may be fabricated in various ways. For a preferred embodiment, very thin bands of a dark-colored cylindrical bands are created on the tip. The entire tip is then covered by a transparent wear-resistant coating.

The invention pertains generally to dental units (e.g., a high-speed dental handpiece (11), an ultrasonic scaler (13) and an air/water syringe (12)) connected to a water supply that provides coolant and rinse water to the dental units. More particularly the invention pertains to a dental unit using water that is continuously treated with a water treatment agent, such as microbiocidal silver ions. The treated dental unit water is supplied to the dental units via dental unit waterlines (6, 7, 8, 9, and 10).

An ultrasonic dental scaler automatically supplies a frequency to match a handpiece connecting thereto. A handpiece connector includes one or more passive elements, which affect the resonant frequency produced by the generator. Multiple handpieces, each operating at a different resonant frequency, may thus be used with the same ultrasonic generator. The ultrasonic dental scaler also supports two footswitches. One footswitch includes a foot-controlled power level adjuster. When connected, the footswitch automatically disables the manual power adjuster. Another on-off footswitch includes no power adjustment mechanism. When connected, the manual power adjustment feature of the generator is maintained. Orders for different handpiece frequencies and footswitch types can thus be filled with an inventory of one generator model.

A readily disposable aspiration unit that can be connected to various dental instruments of conventional design including ultrasonic scalers. The aspiration unit includes a novel suction means for automatically carrying away from the operative field cooling water and debris generated during the performance of the scaling procedure. The unit further includes a tip-encompassing shroud that uniquely functions as a suction scoop for automatically capturing aerosols in the operative field including aerosols containing saliva, blood, tissue, calculus and like adherent deposits, which are generated during the scaling procedure.

The invention discloses an ultrasonic tooth cleaner handgrip, comprising a handgrip shell and a water pipe arranged in the handgrip shell, wherein the water outlet of the water pipe is arranged at the end of the handgrip shell. The ultrasonic tooth cleaner handgrip is characterized in that the inner cavity of the handgrip shell is provided with an illuminant; the end of the handgrip casing is provided with a light-transmission part through which the light rays of the illuminant can pass. The handgrip has simple structure, low cost and convenient use and is suitable for being sterilized in the environment with high temperature and high pressure, thereby having high popularization value.

A pre-packaged, sterilized, single-use dental scaler tip, to be supplied to dental professionals, is used with an insert for an ultrasonic dental scaler. The single-use tip is employed for maintenance and preventive care for patients with titanium and other dental implants. The tip is packaged individually and sterilized by gas or irradiation, only to be removed after purchase, such as by the dental professional just before use on a patient. Upon completion of the patient care, the tips are preferably discarded and the dental insert is autoclaved or otherwise sterilized.

The invention relates to an ultrasonic tooth cleaning machine with automatic switch, wherein an electric conductor which is connected with a main frame contacts human body; when a working tip contacts tooth, a main frame circuit, a conducting wire and the human body tissue between the working tip or a root canal broach and the electric conductor form into a loop impedance. Operating state of main frame is controlled through detecting loop impedance or relative value of the loop impedance in response to certain current signal: when the main frame is in tooth cleaning state, the main frame is started to work once the working tip contacts tooth, while the working tip moves away from tooth, the main frame stops working; when the main frame is in root canal measuring state, the working tip is replaced by the root canal broach to prepare for root canal expansion; meanwhile, measuring and display of the length of tooth root canal and working status control of the main frame are completed through detecting loop impedance or relative value of the loop impedance in response to certain current signal. In addition, a denture palate rack is arranged and is provided with a spittle suction pipe and a light-emitting diode (LED), wherein effective illumination of oral cavity is realized by the LED, while flushing fluid inside oral cavity is discharged through the spittle suction pipe.

The invention relates to a constant power output circuit and an ultrasonic tooth cleaner constant power control method. The constant power output circuit comprises a power output circuit, a sampling resistor R1 and an ultrasonic transformer T1. The power output circuit comprises a voltage stabilization chip U1 and an inductor L1, a first pin of the voltage stabilization chip U1 is connected to an external power source, a second pin of the voltage stabilization chip U1 is connected to the input end of the ultrasonic transformer T1 through the inductor L1, a third pin and a fifth pin of the voltage stabilization chip U1 are connected with the ground respectively, the fourth pin of the voltage stabilization chip U1 is connected to the ground through the sampling resistor R1, and the output end of the ultrasonic transformer T1 is connected to the ground through the sampling resistor R1. The constant power output circuit and the ultrasonic tooth cleaner constant power control method achieve the constant power output of a tooth cleaner, the adjusting speed of the power output of the tooth cleaner is improved, a better cleaning effect is achieved, and the tooth cleaning efficiency is improved.

The invention relates to an anti-rotating structure in a handle in an ultrasonic scaler. The anti-rotating structure comprises a transducer, a rear snap ring and a handle shell; the rear snap ring sleeves a main rod of the transducer, the rear snap ring is buckled with the main rod, and the buckling matching of the rear snap ring and the main rod is used for preventing the relative rotation between the rear snap ring and the main rod; and the handle shell sleeves the rear snap ring, and the rear snap ring is buckled with the handle shell, so that the buckling matching between the rear snap ring and the handle shell is used for preventing the relative rotation between the rear snap ring and the handle shell. The anti-rotating structure has the beneficial effects that by adopting the anti-rotating structure and encapsulating the structure, the comfort of the handle can be effectively improved, the power is high, and the torque transmission is reliable.

An extrasonic scaler includes a triangulate straight scaler, a leftward bent arc-shaped triangulate scaler, a rightward bent arc-shaped triangulate scaler, a leftward bent distal-hoe semi-triangulate scaler, a rightward bent distal-hoe semi-triangulate scaler, a leftward bent mesial-hoe semi-triangulate scaler, and a rightward bent mesial-hoe semi-triangulate scaler. Thus, the extrasonic scaler is designed according to the tooth pattern of the human body so that the extrasonic scaler can reach the deeper surface of the tooth root from various different directions to remedy the oral and periodontal diseases, thereby enhancing the working efficiency.

The invention provides a novel ultrasonic scaler transducer. The novel ultrasonic scaler transducer comprises a front amplitude-change pole, middle piezoelectric ceramics and a back main rod, a connecting post is arranged at the front end of the main rod, a connecting groove is formed in the back end of the amplitude-change pole, the front end of the connecting post penetrates through a through hole of the piezoelectric ceramics and is in tight fit with the connecting groove, and a polytetrafluoroethylene rigid pipe for insulation is arranged between the piezoelectric ceramics and the connecting post. The invention further discloses a scaler handle comprising a shell, a light-emitting device, a top sleeve and the transducer. The novel ultrasonic scaler transducer has the advantages that by the aid of the polytetrafluoroethylene rigid pipe, on one hand, insulation can be achieved, and on the other hand, coaxiality of four wafers can be increased, so that electromechanical conversion efficiency of the transducer is improved greatly; a processing technology is simplified.

The invention provides a self-adapting ultrasonic dental descaler which comprises an MPU (micro processing unit), an oscillating unit, a frequency control unit, an intensity control unit, a power amplification unit, a current sampling feedback unit, a mechanical vibration unit and a power supply unit, wherein the oscillating unit generates push-pull pulse output with a controllable duty ratio under the control of the MPU; the MPU transmits data to the frequency control unit to control oscillating frequency of the oscillating unit, so that a duty ratio and frequency of an oscillating signal generated by the oscillating unit are controlled by the MPU; and after the oscillating signal is amplified by the power amplification unit, the mechanical vibration unit is driven to convert an ultrasonic oscillating electrical signal to an ultrasonic mechanical vibration signal. The descaler can automatically scan and search an optimal resonance point; resonance frequency and oscillating intensity are locked digitally; the drift of the resonance point is very small; the working efficiency is high; the stability and reliability are improved; and dirt such as dental scale and calculus can be removed well.

The invention discloses an ultrasonic dental descaler transducer with an optimized structural size. The ultrasonic dental descaler transducer comprises an amplitude transformer, a piezoceramic and a main rod which are connected in a coaxial manner; the amplitude transformer comprises a round platform, an anti-rotation body and a work tip connecting rod; the round platform is connected with the piezoceramic in a coaxial manner; the anti-rotation body is connected with the round platform in a coaxial manner; and the work tip connecting rod is connected with the anti-rotation body in a coaxial manner. The ultrasonic dental descaler transducer is characterized in that the overall length of the amplitude transformer ranges from 27 to 29 mm. Compared with the prior art, the ultrasonic dental descaler transducer has a small structural size, and the performances equal to a prior transducer with a larger size; in addition, the size of the ultrasonic dental descaler transducer is decreased, so that a handle that is equipped with the ultrasonic dental descaler transducer in an encapsulation manner becomes smaller, the handling property is good, and the hand feel is good.

The invention provides a light temperature increase self-adaptive ultrasonic dental descaler which comprises an MPU (microprocessor unit), an oscillating unit, a frequency control unit, an intensity control unit, a power amplifying unit, a current sampling and feedback unit, a mechanical oscillation unit and a switching power supply unit. According to the dental descaler, an optimum resonance point can be automatically scanned and searched, number lock is performed on the resonance frequency and the oscillation intensity, the drifting of the resonance point is minimal, the working efficiency is high, and the stability and the reliability are improved; dirt such as dental plaque, dental calculus and the like can be well eliminated, so that an effect of beautifying teeth is achieved; a switching power supply is adopted as a power supply, so that the heat generated by the power supply part is reduced, and therefore, the temperature in the dental descaler is low, and the service life of the dental descaler is prolonged.