Ultrasonic Patents (Class 433/119)
  • Publication number: 20130040264
    Abstract: Devices and methods for ultrasonic dental treatment are described, wherein the devices and methods can comprise a flexible array of cooperative ultrasound transducers. The array can contain individual ultrasonic transducers that can perform both functions of emitting and sensing. The transducers can have the ability to interchange their functions from emitting to sensing. The transducers can cooperate in providing an ultrasound treatment and each transducer can be independently controlled by an external source controller. An ultrasound system is provided comprising: an ultrasound transducer sensor array operable to emit or sense ultrasound, wherein the timing and intensity of emission may be controlled by an electronic controller based on a feedback signal from the sensors. In addition the ultrasound system can also have the ability to sense coupling to a treatment tissue. This ability to sense proper coupling can improve the efficacy of the treatment.
    Type: Application
    Filed: April 29, 2011
    Publication date: February 14, 2013
    Applicant: Smilesonica Inc.
    Inventor: Cristian Scurtescu
  • Publication number: 20130040263
    Abstract: Vibratory instrument including a tool releasably mounted on a tool carrier for coupling with a vibration generator. The tool includes in succession along a longitudinal axis: a working portion presenting a free end for reproducing the vibration transmitted by the vibration generator; a coupling portion; and an elastically-deformable attachment portion disposed upstream from the coupling portion. The tool carrier includes in succession along a longitudinal axis: a housing receiving the attachment portion of the tool; and a coupling bearing surrounding the coupling portion of the tool, at least in part. The attachment portion of the tool presents outside dimensions that are adapted relative to the inside dimensions of the housing of the tool carrier so as to prevent contact between the attachment portion and the housing when the coupling portion of the tool is in contact with the coupling bearing of the tool carrier.
    Type: Application
    Filed: March 3, 2011
    Publication date: February 14, 2013
    Applicant: Societe Pour La Conception Des Applications Des Techniques Electroniques
    Inventors: Patrick Lesage, Jean-Michel Richer, Alain Pinel
  • Patent number: 8334636
    Abstract: The invention relates to a coupling unit (24) for transmitting high-frequency mechanical vibrations from a vibration generator (12) onto a tool (34). Said coupling unit comprises in input part (22) and an output part (30) that are interconnected via two identical vibration bars (26, 28), said bars being off-set from each other. The bars may have the shape of quadrants to provide the output movement in a direction that forms an angle of 90° with the direction of the input movement.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: December 18, 2012
    Inventor: Michael Thoms
  • Patent number: 8328452
    Abstract: The combination of a power toothbrush and an oral fluid, in which the oral fluid has the characteristic of changing viscosity, depending upon the action of a workpiece element portion, such as a flexible membrane, of the power toothbrush. The power toothbrush has two operating conditions. In one condition, the membrane moves toward and away from the teeth at a speed such that the fluid is liquid and flows easily to and around the teeth, including the interproximal regions. In the second condition, the membrane is moved at a significantly higher speed, in response to which the viscosity of the fluid increases substantially, having a shear rate at least as great as necessary to remove biofilm from the teeth.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: December 11, 2012
    Assignee: Koninklijke Philips Electronics N.A.
    Inventors: Joseph W. Grez, Michiel Allan Aurelius Schallig
  • Publication number: 20120308956
    Abstract: An ultrasonic dental instrument provides a hand piece with an ultrasonic generator communicating with a separable base and tip that when assembled provide mechanical rigidity and the conduction of ultrasonic energy from the ultrasonic generator to a distal portion of the tip but which may be separated for individual replacement and manufacture.
    Type: Application
    Filed: March 15, 2012
    Publication date: December 6, 2012
    Inventors: James A. DeVengencie, F. Kris Olsen, Spanky Raymond
  • Patent number: 8295025
    Abstract: Apparatus and method for controlling the frequency of the current in the excitation coil of a handpiece of a dental magnetostrictive ultrasonic scaling unit, or a similar transducer. A microprocessor continually samples predetermined functions of the current through the excitation coil, and periodically adjusts the frequency, by performing a coarse-stepped frequency scan, followed by a fine-stepped frequency scan until the function samples are close to predetermined optimum values. The functions can include the peak of the current and the peak of a high-pass filtered version of the current. The frequency adjustment is performed each time the handpiece is energized by the practitioner, and at frequent intervals thereafter, assuring automatic optimal frequency at all times and under all conditions. Apparatus according to the invention does not require sensing coils or complex power- or impedance-sensing circuitry and covers a wide range of resonant frequencies for different handpiece- and insert types.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: October 23, 2012
    Inventors: Alan Edel, Julian Edel, Simeon Chavkin
  • Publication number: 20120251975
    Abstract: An oral care apparatus is an apparatus for performing care on an oral cavity using a care member, and includes an accelerometer, a driving unit for vibrating the care member, and a vibration frequency detection unit for detecting a vibration frequency of the care member. The vibration frequency detection unit detects the vibration frequency based on the waveform of a signal outputted by the accelerometer.
    Type: Application
    Filed: June 7, 2012
    Publication date: October 4, 2012
    Applicant: OMRON HEALTHCARE CO., LTD.
    Inventor: Toshiyuki IWAHORI
  • Publication number: 20120237895
    Abstract: An ultrasonic scaler tip, capable of effectively removing tartar or the like adhered around an artificial tooth root, is provided. An ultrasonic scaler is also provided, which prevents metal material (for example, ion), except for titanium or titanium alloy, from adhering around the artificial tooth root and disturbing tissue growth and adhesion to the tooth root.
    Type: Application
    Filed: December 8, 2010
    Publication date: September 20, 2012
    Applicant: Yugen Kaisha Seista
    Inventor: Takashi Morimoto
  • Publication number: 20120231416
    Abstract: Provided is a periodontal instrument adapted for use in debridement of a root surface of a tooth having an axially elongated shaft and a shank. The shank is disposed at an end of the shaft and has a body extending distally relative to the shaft. The body includes a plurality of blades adapted for use in debridement of a root surface. Each blade is configured for scaling and/or planning of a root surface and the shaft is dimensioned and configured to facilitate manual manipulation of the shank. Also provided is a removable tip periodontal instrument adapted for use in debridement of a root surface of a tooth and a kit including a device and a plurality of tips that may be color coded for easy reference by the clinician.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 13, 2012
    Applicant: WARSAW ORTHOPEDIC, INC.
    Inventors: Susan J. Drapeau, Kelly Brook Emerton, Daniel Andrew Shimko
  • Patent number: 8256054
    Abstract: The toothbrush includes a handle portion which has a disc spring assembly driven by a solenoid coil. The upper end of a central shaft which extends from the solenoid is connected to a drive flexible membrane assembly which in operation moves back and forth under the positive action of the solenoid central shaft and the return action of the spring on the central shaft. The drive membrane acts on hydraulic fluid which extends through a stem portion of the toothbrush to the brushhead, which includes a movable brushhead membrane. The moving fluid acts on the brushhead membrane to move it.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: September 4, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Meindert Hendrik Boonstra, John Boersma
  • Publication number: 20120189978
    Abstract: A two-part, modular dental handpiece cable connector system that provides a convenient method for fast field replacement of worn or defective handpiece cables without disassembling the dental device. The two parts include a female connector element that mounts within the device housing and a male connector element to attach the cable. The female connector is further defined into two categories: snap-in mounting for enclosed, confined space cabinets and threaded panel mounting for universal attachment.
    Type: Application
    Filed: January 18, 2012
    Publication date: July 26, 2012
    Inventors: DAVID POLLOCK, MATTHEW BARTO
  • Patent number: 8204612
    Abstract: A tip-based computer controlled system for a dental delivery device is disclosed. The system automatically controls an operating characteristic such as power control or fluid flow based on tip identification and history. The operating characteristic may also be controlled in response to particular conditions throughout the dental procedure, such as (but not limited to) temperature, dental hygiene material, fluid type, etc. The system may provide an alert or shut off if unsafe conditions occur and/or error circumstances are detected. An operator interface is provided to configure the system and augment/override an executing control algorithm during a procedure. A method and a computer-readable storage medium are also disclosed.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: June 19, 2012
    Inventors: James Feine, Mohammad A. Jamnia, William L. Bollig
  • Publication number: 20120148979
    Abstract: An endodontic tool is provided to facilitate the removal of the smear layer and to enhance deep lateral cleaning of a root canal system. The tool is comprised of a sonic or ultrasonically driven activator which is made from a strong, flexible, non-metallic, and non-cutting material. The activator can be smooth. A snap-on coupler is adapted to attach the tool to a driver via a snap on action and without the use of tools. The driver will vibrate, sonically or ultrasonically, the flexible activator within a root canal of a tooth. The tool can be provided with fluid passages which allow for irrigating reagents to be delivered through the activator and into the root canal space during endodontic procedures.
    Type: Application
    Filed: February 21, 2012
    Publication date: June 14, 2012
    Applicant: ENDO INVENTIONS, LLC
    Inventors: Clifford J. Ruddle, Robert H. Sharp
  • Publication number: 20120107767
    Abstract: The present invention is a personal ultrasonic dental hygiene device. A handle with an ultrasonic transducer is provided with differing dental hygiene attachments for personal use. The device may be powered through a battery or through direct wall socket communication. A variety of controls may be provided to adjust ultrasonic frequency and treatment time.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 3, 2012
    Applicant: CAO GROUP, INC.
    Inventors: Steven D. Jensen, Densen Cao
  • Patent number: 8162661
    Abstract: A dental tool having a pair of releasably and pivotably connected opposing jaw members. A biasing mechanism connected to at least one of the jaw members biases the jaw members toward a proximate rest position. A separating mechanism is connected to at least one jaw member for separating the jaw members. An ultrasonic vibrator is connected to the jaw members for vibrating them. A fastening device may be used to connect the pair of opposing jaw members.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: April 24, 2012
    Inventor: Zbigniew Pona
  • Publication number: 20120077140
    Abstract: Apparatus is provided for use with a gingival periosteum lining a bone. The apparatus comprises a periosteal mesher, which comprises a mesher surface, and a plurality of cutting elements distributed over the mesher surface, which are configured to cut the gingival periosteum to increase flexibility thereof. Other embodiments are also described.
    Type: Application
    Filed: December 2, 2011
    Publication date: March 29, 2012
    Applicant: RAINBOW MEDICAL LTD.
    Inventors: Hadar BETTER, Gidoen FOSTICK, Yossi GROSS
  • Publication number: 20110311944
    Abstract: The present invention relates generally to a system and method for measuring the structural characteristics of an object. The object is subjected to an energy application processes and provides an objective, quantitative measurement of structural characteristics of an object. The system may include a device, for example, a percussion instrument, capable of being reproducibly placed against the object undergoing such measurement for reproducible positioning. The structural characteristics as defined herein may include vibration damping capacities, acoustic damping capacities, structural integrity or structural stability.
    Type: Application
    Filed: June 18, 2011
    Publication date: December 22, 2011
    Applicant: PERIMETRICS, LLC
    Inventors: James C. Earthman, Cherilyn G. Sheets
  • Publication number: 20110300507
    Abstract: The invention relates to a coupling body that can convert a linear input movement into a linear output movement transversal to the input movement. The coupling body includes two parallel flexional arms of the same length, the ends of the flexional arms being connected by means of transversal connection arms. The connection arms carry driving bodies which represent load bodies arranged at the same distance from the neutral lines of the connection arms, in the same direction.
    Type: Application
    Filed: January 23, 2007
    Publication date: December 8, 2011
    Inventors: Udo Kirstgen, Michael Thoms
  • Patent number: 8057480
    Abstract: An ultrasonic handpiece is used for augmenting a bone screw. The handpieces comprise a housing, an ultrasonic converter shiftingly accommodated in the housing, and a sonotrode connected to one end of the ultrasonic converter. The sonotrode protrudes from the housing into the bone screw. An adjuster wheel is adjustably connected to the housing. A spring is provided the ends of which are supported by the ultrasonic converter and the adjuster wheel, respectively. The ultrasonic converter is preloaded in the direction away from the adjuster wheel by setting the adjuster wheel, thereby the sonotrode is urged with a selected force into the bone screw and the augmentation material is pressed out of the bone screw and into the bone.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: November 15, 2011
    Assignee: Stryker Trauma GmbH
    Inventors: Klaus Dorawa, Manuel Schwager, Marcel Aeschlimann, Philipp Seiler
  • Patent number: 8046861
    Abstract: The toothbrush includes a handle portion and a brushhead assembly which comprises a head portion and a stem portion. The head portion includes a bellows-like acoustic action member for creating acoustic wave action as it moves in and out in response to an acoustic driving force. A drive system is located in the handle and includes an audio speaker-type assembly to create acoustic waves which are transmitted through a transmission line to the acoustic action member. The acoustic action member is driven toward and away from the teeth when the toothbrush is operatively positioned within the mouth. The action of the acoustic member is directly or indirectly coupled to the fluid in the mouth, producing a foam which couples shear forces between the acoustic action member and the teeth/gums to produce a desired cleaning/therapeutic effect.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: November 1, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Grez W. Joseph
  • Publication number: 20110256503
    Abstract: The appliance includes an appliance body (12) as well as a system for producing microbubbles (20) and a system for producing an ultrasound signal beam (22) in a frequency range which activates at least some of the microbubbles. The appliance includes at least one of the following: (a) an array of ultrasound transducer elements (40) which produce a plurality of ultrasound signal beams; (b) an amplitude modulation assembly (51) for modulating the amplitude of the ultrasound signal; and (c) a frequency modulation system (61) for changing the frequency of the ultrasound signals over a selected range, to impact a range of microbubble sizes.
    Type: Application
    Filed: December 9, 2009
    Publication date: October 20, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: John Douglas Fraser
  • Patent number: 8037566
    Abstract: The toothbrush includes a handle portion and a brushhead assembly which comprises a head portion and a stem portion. The head portion includes a bellows-like acoustic action member for creating acoustic wave action as it moves in and out in response to an acoustic driving force. A drive system is located in the handle and includes an audio speaker-type assembly to create acoustic waves which are transmitted through a transmission line to the acoustic action member. The acoustic action member is driven toward and away from the teeth when the toothbrush is operatively positioned within the mouth. The action of the acoustic member is directly or indirectly coupled to the fluid in the mouth, producing a foam which couples shear forces between the acoustic action member and the teeth/gums to produce a desired cleaning/therapeutic effect.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: October 18, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Joseph W. Grez
  • Publication number: 20110250559
    Abstract: Efficiency-modulated ultrasonic dental inserts (12) are disclosed for preventing the overpowering of power-sensitive tips (18). The inserts (12) are useful in a handpiece (10) having an induction coil (20) disposed about a well and operable with an adjustable power supply having a maximum power output setting. An efficiency-modulated magnetostrictive element (14) is adapted to be received in the well. A velocity transducer (16) has proximal and distal ends. The proximal end is attached to a distal end of the magnetostrictive element (14). A power-sensitive tip (18) has a proximal end secured to the distal end of the velocity transducer (16). The efficiency of the magnetostrictive element (14) is matched with the power range of the tip (18) to prevent overpowering the tip (18) at the maximum power output setting.
    Type: Application
    Filed: June 22, 2011
    Publication date: October 13, 2011
    Inventor: James Feine
  • Publication number: 20110250560
    Abstract: Provided are a dental and medical ultrasonic tip that may enhance a durability and a reliability and may simplify a manufacturing process, and a method of manufacturing the same. The method of manufacturing the dental and medical ultrasonic tip may include: providing a molding mixture including powder; manufacturing an intermediate molded object by injecting the molding mixture so as to integrally form a tip body and a plurality of tip protrusions protruded from the tip body; and sintering the intermediate molded object. The tip body and the plurality of tip protrusions may be formed using the same material, and the plurality of tip protrusions may be closely arranged on a substantially polished portion of the tip body.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 13, 2011
    Inventors: Young Sam Kwon, In Hwan Lee, Seongho Baek
  • Publication number: 20110229848
    Abstract: An appliance for activating a tooth-whitening agent has a source of ultrasonic vibration having an active ultrasonically agitated tip. A holder is fittable over the tip and carries a vibration-conducting fork engageable between the upper teeth and lower teeth of a patient and in contact with the tip for transmitting ultrasonic vibrations from the tip to the patient's teeth.
    Type: Application
    Filed: June 2, 2011
    Publication date: September 22, 2011
    Inventor: Paul HERTZ
  • Publication number: 20110177474
    Abstract: A magneto strictive sterilizable handpiece (14) with an electric connector (44) selectively engageable with a power cable includes a non-conducting inner core (30) having an outer surface, a conducting wire deposited on the outer surface of the inner core in a helical manner to form a coil (42) with a first end functioning as a first electrical contact and a second end functioning as second electrical contact, and an over-mold layer (50) deposited over the conducing wire to substantially completely seal the coil, so that the over-mold layer prevents a fluid from contacting any section of the conducting wire except for the first electrical contact and the second electrical contact during sterilization of the handpiece using the fluid.
    Type: Application
    Filed: March 18, 2008
    Publication date: July 21, 2011
    Applicant: HU-FRIEDY MFG. CO., INC
    Inventors: Mohammed Ali Jamnia, William L. Bollig, David W. Tipton
  • Patent number: 7981071
    Abstract: A handheld instrument for minimizing pain during administration by injection of a liquid, such as, an anesthetic that has a main body, a vibration unit mounted in the main body when initiated to cause the main body to vibrate, and a detachable tip cantilever mounted on the main body to vibrate with it, the tip having a free end characterized by a bifurcation to form two spaced projections defining a space between them, whereby the spaced projections can be placed in proximity to, adjacent to and bracketing a preselected injection site on a human or animal and the tissue at said preselected injection site and vibrated while an injection is given.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: July 19, 2011
    Assignee: Bing Innovations, LLC
    Inventor: Steven G. Goldberg
  • Patent number: 7959438
    Abstract: An ultrasonic tool is disclosed with a handpiece (300, 500, 806) containing coils (304A-304D; 504A-504D; 804A-804B) that produce an electromagnetic field that vibrates a magnetic rod (102, 702A, 702B, 820) of a moveable pin transducer (MPT) 100 disposed within the handpiece. Ultrasonic vibrations are produced when the coils are selectively powered by an ultrasonic signal generator, which can include a stepper motor control apparatus (1300, 1400). A tip 106 can be removably attached to an MPT 100. A channel (708A, 708B) in the magnetic rod (700A, 700B) can allow fluidic communication with a handpiece fluid supply channel (310, 510). A method of vibrating a tool can include controllably energizing at least one electromagnetic coil contained within a handpiece to vibrate a magnetic rod and an attached tip. The method can include varying the energy to at least one of the electromagnetic coils with a stepper motor control apparatus.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: June 14, 2011
    Inventor: James Feine
  • Publication number: 20110091837
    Abstract: An ultrasonic dental scaler comprising a handpiece and a control unit. The handpiece includes include a tip, and a water irrigator for providing water to the tip, the handpiece being constructed and arranged to vibrate the tip. The control unit is in communication with the handpiece and receives electrical feedback from the tip. The control unit automatically controls water flow from the water irrigator to the tip and the vibration of the tip based on the received electrical feedback.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Inventor: Hossein ZOLHAYAT
  • Publication number: 20110087605
    Abstract: A dental device capable of monitoring at least one characteristic of the dental device. The characteristics are monitored by the use of microchips; radio frequency identification devices (RFID), bar codes, resistors, diodes, semiconductors, and magnetic strips.
    Type: Application
    Filed: April 30, 2010
    Publication date: April 14, 2011
    Inventor: Gary J. Pond
  • Publication number: 20110033823
    Abstract: The present invention describes an ultrasonic dental insert capable of enhanced operating efficiency. A first transducer generates ultrasonic vibrations. A connecting body has a proximal end and a distal end having a tip attached thereto. The proximal end is attached to the first transducer so as to receive the ultrasonic vibrations therefrom and to transmit the ultrasonic vibrations toward the tip attached to the distal end. The ultrasonic dental insert may be inserted into a handpiece for providing electromagnetic energy to the first transducer to generate the ultrasonic vibrations. The ultrasonic insert, when seated in the handpiece, is substantially decoupled, on a rotary axis, from the handpiece. A rotary force need only be applied to the insert to rotate it in the handpiece. At least one light source substantially proximate or distal to the tip may also be provided.
    Type: Application
    Filed: March 18, 2009
    Publication date: February 10, 2011
    Applicant: DISCUS DENTAL, LLC
    Inventors: Mark Gersh, Pejman Fani, John Raybuck
  • Publication number: 20110027752
    Abstract: A two-part, modular dental handpiece cable connector system that provides a convenient method for fast field replacement of worn or defective handpiece cables without disassembling the dental device. The two parts include a female connector element that mounts within the device housing and a male connector element to attach the cable. The female connector is further defined into two categories: snap-in mounting for enclosed, confined space cabinets and threaded panel mounting for universal attachment.
    Type: Application
    Filed: October 11, 2010
    Publication date: February 3, 2011
    Inventors: David Pollock, Matthew Barto
  • Publication number: 20110020765
    Abstract: A consumable tip assembly for use with a dental tool and a system for irrigation of a tooth root canal. The dental tool has an ultrasonic energy generator positioned therein. The tip assembly provides a single continuous flow path for delivering fluid from a reservoir at the proximal end of the needle to a root canal of a tooth at the distal end of the needle. Energy generated by an ultrasonic energy generator is translated into movement of a needle to provide optimum cleaning to the root canal. The system also includes a pressure source of irrigation fluid connected to the tip assembly. The irrigation fluid has ultrasonic energy imposed thereon as it passes through a hand piece of the dental tool.
    Type: Application
    Filed: April 30, 2010
    Publication date: January 27, 2011
    Inventors: Randall Maxwell, Charles E. Garrott, W. Shane Mize
  • Patent number: 7875237
    Abstract: The invention relates to a method for manufacturing a dental scaler tip using a powder injection molding process, a mould, and a scaler tip that is excellent in shape-reliability and injects fluid to a front end thereof along a curved section of the tip. The method comprises the steps of preparing feedstock and injecting the feed stock into a mould to form a molding body, wherein, the mould comprises an operating section to which cylindrical core pins having multi steps and an eccentric end formed at a front end thereof for forming the fluid passage is mounted; and a pair of slide cores disposed for supporting the eccentric ends of the core pins such that the slide cores face each other and are slid in the direction perpendicular to the movement direction of the core pins to form a cavity corresponding to a shape of an article to be formed.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: January 25, 2011
    Assignee: Korea Institute of Industrial Technology
    Inventors: Chul Jin Hwang, Hyung Pil Park, Young Bae Ko, Young Moo Heo, Jong Sun Kim
  • Patent number: 7849548
    Abstract: An ultrasonic toothbrush for daily oral hygiene application is disclosed, having an ultrasound transducer in direct contact with the fluids in the oral cavity, without ultrasound energy attenuation between the transducer and the fluids in the oral cavity. Maximum level of ultrasound energy coupled to the fluids within the oral cavity and to the teeth and gums and periodontal pockets, achieving maximum loosening of soft plaque. Toothbrush configurations of ultrasonically enhanced manually operated toothbrushes and motorized toothbrushes having lateral direction sonic frequency vibrating brush heads emitting ultrasonic energy are disclosed. To generate the sonic frequency lateral vibration of the brush head, a motion transducer is utilized. Removable and user replaceable brush heads are described. In the various configurations low voltage DC energy supplied by a battery is converted to ultrasonic frequency DC current to activate the ultrasonic transducer.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: December 14, 2010
    Inventor: Robert T. Bock
  • Patent number: 7748070
    Abstract: An electric toothbrush having a handle, a head, and a neck extending between the handle and the head is disclosed. The handle has a hollow interior region having a motor and an electrical power source. The head includes an ultrasonic transducer and a bristle field. The ultrasonic transducer is in electrical communication with the electrical power source, and a shaft is operatively connected to the motor for moving the bristle field.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: July 6, 2010
    Assignee: The Procter & Gamble Company
    Inventors: John Geoffrey Chan, Chanchal Kumar Ghosh, Stephen Andras Kovacs, Lowen Robert Morrision, Jr., Ping Wang, Aleksey Mikhailovich Pinyayev
  • Patent number: 7715167
    Abstract: Apparatus and method for controlling the frequency of the current in the excitation coil of the handpiece of a dental magnetostrictive ultrasonic scaling unit, or similar transducer. A microprocessor continually samples a predetermined function of the current through the excitation coil, and adjusts the frequency for a function maximum, performing coarse and fine frequency adjustments. The function can be proportional to the current, its time-derivative, or combination thereof. A voltage-controlled oscillator is employed, controlled by pulse-width modulation from the microprocessor. The base frequency scan is performed each time the handpiece is energized by the practitioner, assuring automatic optimal frequency adjustment at all times and under all conditions. Apparatus according to the invention does not require transformers, sensing coils, or complex power- or impedance-sensing circuitry, and covers a wide range of resonant frequencies for different insert types.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: May 11, 2010
    Inventors: Alan Edel, Julian Edel, Yitzhak Bloomberg
  • Patent number: 7675219
    Abstract: The invention relates to a method for controlling an ultrasonic unit f an ultrasonic cleaning system with at least one control unit, one generator unit and one hand-held unit containing the ultrasonic unit and one switching module provided for starting the ultrasonic unit, wherein mechanical oscillations can be generated via the ultrasonic unit and transmitted to an instrument that is mechanically connected to the ultrasonic unit. In a preferred embodiment, the resonant frequency required for operation of the ultrasonic unit in resonance is determined by a control routine executed in the control unit, and a control signal (ss) based on the determined resonant frequency is generated in the generator unit and is sent to the ultrasonic unit for operation of the ultrasonic unit in resonance.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: March 9, 2010
    Assignee: Medtronic GmbH
    Inventors: Armin Tanzer, Bernhard Jung
  • Publication number: 20090326440
    Abstract: A piezotome operation unit for lifting a maxillary sinus at a position of placement of an implant upon lifting the maxillary sinus, which forms and enlarges the vertical hole with ease in a remaining bone of the maxillary sinus though vertical approaching, and upon forming a lateral window below a malar bone through lateral approaching, prevents a maxillary membrane from becoming damaged, thereby ensuring continuous, safe lifting so that the operating time is shortened and the efficiency of the operation is maximized.
    Type: Application
    Filed: November 21, 2008
    Publication date: December 31, 2009
    Inventor: Dal Ho Lee
  • Patent number: 7614878
    Abstract: A magnetostrictive ultrasonic dental scaler is disclosed. The magnetostrictive device comprises an oscillator adapted to provide electrical energy including a current and a voltage signal, a handpiece having a tool tip which vibrates in response to the electrical energy supplied to the handpiece and a control circuit. The control circuit includes a phase detector adapted to detect phase between current and voltage signals and to generate a phase detection signal as a function of the phase. The control circuit also includes a digital signal processor operatively connected to the phase detector. The digital signal processor adapted to process the phase detection signal through a digital loop filter to generate an error signal.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: November 10, 2009
    Assignee: PCG, Inc.
    Inventors: Richard Paschke, Noel S. Paschke, Emery S. Rose
  • Patent number: 7604479
    Abstract: A dental instrument comprising a handpiece with a threaded extension and a working tool for attachment to the extension includes a wrench mounted on the distal end of the handpiece for use in attaching the tool to the extension. The wrench comprises a nose piece mounted on the front end of the handpiece, said nose piece rotateable radially about the front end of the handpiece as well as longitudinally slidable forward of the distal end of the handpiece so that an opening in a front end of the nose piece extends over the hub of the tool. Rotating the extended nose piece radially around the front end of the handpiece causes the hub of the tool to rotate, attaching the tool to the threaded extension. The nose piece is then retracted to a storage position during use of the tool.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: October 20, 2009
    Inventor: L. Stephen Buchanan
  • Publication number: 20090211041
    Abstract: An ultrasonic toothbrush for daily oral hygiene application is disclosed, having an ultrasound transducer in direct contact with the fluids in the oral cavity, without ultrasound energy attenuation between the transducer and the fluids in the oral cavity. Maximum level of ultrasound energy coupled to the fluids within the oral cavity and to the teeth and gums and periodontal pockets, achieving maximum loosening of soft plaque. Toothbrush configurations of ultrasonically enhanced manually operated toothbrushes and motorized toothbrushes having lateral direction sonic frequency vibrating brush heads emitting ultrasonic energy are disclosed. To generate the sonic frequency lateral vibration of the brush head, a motion transducer is utilized. Removable and user replaceable brush heads are described. In the various configurations low voltage DC energy supplied by a battery is converted to ultrasonic frequency DC current to activate the ultrasonic transducer.
    Type: Application
    Filed: February 25, 2008
    Publication date: August 27, 2009
    Inventor: Robert T. Bock
  • Publication number: 20090211042
    Abstract: An ultrasonic toothbrush for daily oral hygiene application is disclosed, having an ultrasound transducer in direct contact with the fluids in the oral cavity, without ultrasound energy attenuation between the transducer and the fluids in the oral cavity. Maximum level of ultrasound energy coupled to the fluids within the oral cavity and to the teeth and gums and periodontal pockets, achieving maximum loosening of soft plaque. Toothbrush configurations of ultrasonically enhanced manually operated toothbrushes and motorized toothbrushes having lateral direction sonic frequency vibrating brush heads emitting ultrasonic energy are disclosed. To generate the sonic frequency lateral vibration of the brush head, a motion transducer is utilized. Removable and user replaceable brush heads are described. In the various configurations low voltage DC energy supplied by a battery is converted to ultrasonic frequency DC current to activate the ultrasonic transducer.
    Type: Application
    Filed: September 2, 2008
    Publication date: August 27, 2009
    Inventor: Robert T. Bock
  • Publication number: 20090202961
    Abstract: An ultrasonic dental insert having at least one light source. A first transducer generates ultrasonic vibrations. A connecting body has a proximal end and a distal end having a tip attached thereto. The proximal end is attached to the first transducer so as to receive the ultrasonic vibrations therefrom and to transmit the ultrasonic vibrations toward the tip attached to the distal end. A second transducer is disposed substantially proximate to the connecting body for generating a voltage signal in response to movement of a portion of the connecting body according to the ultrasonic vibrations. A magnetic material including a source of a magnetic field is present in close proximity to the insert. At least one light source substantially proximate or distal to the tip is connected to and receives the voltage signal from the second transducer to generate light.
    Type: Application
    Filed: August 17, 2007
    Publication date: August 13, 2009
    Applicant: DISCUS DENTAL, LLC
    Inventors: Pejman Fani, Travis Pham, Gregory Stein, Brian Zargari, Eric P. Rose, Steven Ziemba
  • Publication number: 20090181342
    Abstract: A tooth extraction assisting device includes an ultrasonic machine, an ultrasonic hand piece, and 5 different insert tips that are hook-on to the hand piece. The ultrasonic machine outputs a signal with high frequency oscillation. This high frequency oscillation signal received by the ultrasonic hand piece generates a high frequency vibration of the insert tip. A set of 5 different configuration insert tips was designed for a precision surgical cut at the coronal portion of the periodontal ligament around tooth to be extracted. This device also provides a better visibility at the surgical area with the cavitation effect. With the help of the tooth extraction assisting device dental clinician is able to perform tooth extraction with less chair-time without damaging to the buccal alveolar process which increases the chance of immediate implant placement at the same appointment.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 16, 2009
    Inventor: Hua-Hong Chien
  • Publication number: 20090162810
    Abstract: An ultrasonic dental handpiece and insert assembly is provided. Scaler inserts that can be used to clean and polish tooth surfaces are particularly preferred. A sleeve is removably mounted on the handpiece. The handpiece contains a primary coil and the sleeve encloses a secondary coil, which are inductively coupled together so that electromagnetic energy can be transferred between them. A flexible light guide member having a light source such as a light-emitting diode extends from the sleeve. The light guide can bend and flex in any direction allowing the light source to emit light in any direction.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Inventors: Peter Werner, Benjamin Chronister, Matt Barto
  • Publication number: 20090155740
    Abstract: The present invention is a personal ultrasonic dental hygiene device. A handle with an ultrasonic transducer is provided with differing dental hygiene attachments for personal use. The device may be powered through a battery or through direct wall socket communication. A variety of controls may be provided to adjust ultrasonic frequency and treatment time.
    Type: Application
    Filed: August 26, 2008
    Publication date: June 18, 2009
    Applicant: CAO GROUP, INC.
    Inventors: Steven D. Jensen, Densen Cao
  • Publication number: 20090142729
    Abstract: The invention relates to a method for establishing a releasable connection between a tool connection or coupling piece, which is formed on a dental handpiece, and the tool shank of a dental hand instrument. In order to connect a journal-like fastening section, which tapers toward a free end, on one of the elements to be connected, is inserted into an opening while matching the same, which is adapted to this section, on the other of the elements to be connected.
    Type: Application
    Filed: July 29, 2006
    Publication date: June 4, 2009
    Inventor: Stefan Neumeyer
  • Patent number: 7530809
    Abstract: An ultrasonic dental handpiece for holding a transducer is provided. The transducer converts electrical energy into ultrasonic vibrations. The dental handpiece includes a body, a rotator head, and a retainer ring. The body rotatably receives the transducer. The rotator head engages the transducer for rotation thereof. The retainer ring is fixedly coupled to one of the body and the rotator head and rotatably coupled to the other of the body and the rotator head, such that the rotator head is rotatably coupled to the body.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: May 12, 2009
    Assignee: Discus Dental, LLC
    Inventors: Benjamin Atkin, Haim Levy
  • Publication number: 20090117516
    Abstract: The invention relates to a magnetostrictive insert element for use in a tool holder of an ultrasonic dental treatment device with at least one first longitudinal section having a dental tool and a coupling element and a second adjoining second longitudinal section with a magnetostrictive ultrasonic converter, the first longitudinal section having a first length and a first weight and the second longitudinal section having a second length and a second weight. The ratio between the first and second length is for example between 0.5 and 0.8. Alternatively or in addition, the ratio between the first and second weight is between 0.1 and 0.3.
    Type: Application
    Filed: February 7, 2008
    Publication date: May 7, 2009
    Inventor: Alfred Schmidt