Power-driven Tool Having Fluid Control Valve For Dispensed Material Patents (Class 433/84)
  • Publication number: 20140322667
    Abstract: An article and method for an oral care appliance which generates successive bursts of liquid adapted to provide cleansing of the teeth. The appliance includes a housing and a system for providing successive bursts of liquid, comprising a source of liquid, a nozzle with a spray exit opening and a system for generating and delivering successive bursts of liquid through the spray exit opening. The appliance includes a controller which includes a learning mode initiated by the user. The appliance is operated by the user in a desired sequence when the controller is in the learning mode. The learned desired sequence is stored in memory of the controller, so that future operation of the appliance proceeds with the sequence of operation established by the user.
    Type: Application
    Filed: December 12, 2012
    Publication date: October 30, 2014
    Inventor: Tyler Kloster
  • Patent number: 8828326
    Abstract: The present invention provides a device 10 for generating a non-thermal gaseous plasma which may be a flow of gas plasma in the form of a gas plasma plume emitted from the device. The device comprises a gas capsule, or pressure vessel, 12 for holding a gas or gases 14 under pressure and forming a flow of gas through a plasma generator 16 to an applicator 18 when released from the capsule. Gas released from the gas capsule is energised in the reaction generator to form a gas plasma. The device has a housing 28 for the plasma generator 16, a battery 116 and a signal generator 58 for energising the plasma generator. The gas capsule 12 docks with the housing 28. The device is adapted to be hand-held, typically by the gas capsule 12, and operated to allow it to be used for instance for cleaning and whitening teeth.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: September 9, 2014
    Assignee: Linde Aktiengesellschaft
    Inventor: Thomas Bickford Holbeche
  • Patent number: 8808209
    Abstract: An irrigator handle to be used with a water jet apparatus for cleaning gums and teeth includes a visual indicator to let a user know when a tip has been properly attached to the handle. The handle in some embodiments also includes an audible indicator to let the user know when the tip has been properly attached. The handle has a pause button attached to plunger to restrict water flow when the pause button is depressed.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: August 19, 2014
    Assignee: Water Pik, Inc.
    Inventors: Brian Boyd, Brian R. Williams, Kurt M. Taylor
  • Patent number: 8764442
    Abstract: A prophy angle is provided that includes a housing with a prophy cup at the distal end, a first drive mechanism positioned within the housing and including a drive shaft for delivering mechanical energy to the prophy cup, a chamber enclosed within the housing to store paste in a controlled releasable manner, and an independent second drive mechanism within the housing to control the delivery of paste from the chamber to the prophy cup in a manner to reduce friction in paste delivery and to avoid contact of the paste with the first drive mechanism and its associated gears.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: July 1, 2014
    Assignee: Meribel Dental, LLC
    Inventor: George Michael Mansour
  • Publication number: 20140134569
    Abstract: The FDA approved toothpaste sodium fluoride, organic powders and aqueous slurry toothpaste formula dental treatment systems are designed to safely clean teeth by physico-chemical means contrasted with highly fluid water picks and toothbrush bristles that can't always reach hard to clean areas, between teeth, and inside molars and crowns. Once tartar and plaque set on teeth they are increasingly more difficult to remove with water picks, dental floss, and toothbrush bristles alone that simply can't remove stubborn residues from many hidden and hard to reach areas of your teeth. The FDA approved toothpaste sodium fluoride, organic powders and aqueous slurry toothpaste formula free flow dental treatment systems subject to the approval of the American Dental Association ADA are designed to safely clean teeth gently with clinical specifications of pressurized air of fine toothpaste powders and clinical specifications of aqueous slurry toothpaste formula of highly specialized shape and rotating nozzles.
    Type: Application
    Filed: November 13, 2012
    Publication date: May 15, 2014
    Inventor: Robert Richard Matthews
  • Patent number: 8539980
    Abstract: A device for operation of a surgical or dental drive unit includes a control valve attached to a drive unit to control a flow rate of a compressed fluid flowing from a compressed fluid source to the drive unit. The control valve includes (a) a first control arrangement controlling a rate of flow of the compressed fluid through the control valve; (b) a control switch; and (c) a control sleeve controlled by the control switch to axially move along a longitudinal axis of the drive unit between a first configuration in which the control valve is locked and closed to fluid flow and a second configuration in which the control valve is unlocked and the first control arrangement controls the rate of flow therethrough.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: September 24, 2013
    Assignee: Depuy Synthes Products, LLC
    Inventors: Peter Tanner, Arthur Meili
  • Patent number: 8500447
    Abstract: Medical treatment devices, such as dental treatment devices, include at least a drive unit for driving a tool configured to act on a treatment site, a light-emitting device and a cooling media dispensing device for dispensing at least one cooling medium onto a tool and/or a treatment site. The device can be controlled, such as with a controller, to substantially alternatingly operate the light-emitting device and the dispensing device, thereby intermittently illuminating the tool and/or the treatment site and dispensing cooling medium toward the tool and/or the treatment site, respectively, which provides a user with an improved view of the tool, the treatment site, or both.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: August 6, 2013
    Assignee: W&H Dentalwerk Bürmoos GmbH
    Inventors: Michael Rothenwaender, Christoph Kment, Juergen Koelndorfer, Herbert Weissenboeck, Martin Milojkovic
  • Publication number: 20130157221
    Abstract: A prophy angle is provided that includes a first drive mechanism positioned within a housing for delivering mechanical energy to a rotatable head assembly at the distal end of the housing. A chamber is enclosed within the housing for storing prophy paste. A paste-dispensing assembly that includes an actuator at the proximal end of the housing, a push rod linked to the actuator and supporting a plunger on the push rod is provided, where the push rod is supported by the housing in a biased manner to permit longitudinal movement within the housing in a reciprocating manner as actuated by the actuator, to dispense a controlled quantity of paste out of the prophy angle.
    Type: Application
    Filed: June 25, 2012
    Publication date: June 20, 2013
    Applicant: MERIBEL DENTAL LLC
    Inventors: George Michel Mansour, Tim Truit
  • Patent number: 8408483
    Abstract: A dental water jet apparatus for adjusting a pressurized water stream from a pump to a tip moves pressurized water from a reservoir to a tip in fluid communication with the pump. A flow control knob may be turned to selectively adjust the water pressure supplied by the tip between a minimum and a maximum value. When the flow control knob is turned in a first direction, the volume of fluid directed towards the tip decreases and the volume of fluid returned to an inlet of the pump increases. Fluid may flow from the reservoir and ultimately into the tip to provide oral irrigation and/or cleaning of the teeth, gums, and tongue.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: April 2, 2013
    Assignee: Water Pik, Inc.
    Inventors: Brian Boyd, Brian R. Williams, Kurt M. Taylor
  • Publication number: 20120276499
    Abstract: An interdental treatment device comprises a generator 16 for generating a non-thermal gaseous plasma at a temperature suitable for use in oral treatment and an applicator 18 of the non-thermal plasma. The applicator 18 may comprise a hollow needle member for directing a jet of the non-thermal plasma interdentally. Alternatively the applicator 18 may comprise an interdental brush having a hollow head for receiving a non-thermal gaseous plasma, the head having at least one lateral opening for the discharge of the plasma. The generator 16 and applicator 18 may both form part of a hand-held device 10 having its own gas supply in the form of a capsule 12 containing pressurised gas and its own power supply in the form of a battery 20.
    Type: Application
    Filed: November 11, 2010
    Publication date: November 1, 2012
    Inventors: Cormac John Devery, Thomas Bickford Holbeche, Geoffrey Morgan Lloyd
  • Patent number: 8123522
    Abstract: A dental fluid delivery system for use with a dental drill is disclosed. The dental fluid delivery system includes a coolant water supply, a drive air line, a water line, and a coolant mist air controller. The coolant water supply unit includes a controller and a water container. The controller has a drive air inlet, a water inlet communicatively connected to the water container, a drive air outlet, and a water outlet. The drive air line is connected to the drive air outlet of the water supply unit. The water line is connected to the water outlet of the water supply unit. The coolant mist air controller is connectable in use to a dental drill. The mist air controller has a drive air inlet, a drive air outlet, a water inlet, a water outlet, and a mist air outlet.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: February 28, 2012
    Inventor: DeWayne L. Varnes
  • Patent number: 8012111
    Abstract: An oral hygiene device for use with a sink having hot and cold water lines includes a storage mount and a housing removably coupled thereto. The housing includes hot and cold water inputs and an outlet. The housing also includes first and second channels coupling the inputs to the outlet. The device includes piping tees and flexible tubing for connection to a sink's water lines. The device includes adjustable temperature valves in the first and second channels, respectively, for regulating amounts of hot and cold water passing through the channels. An adjustable volume valve is included for determining a volume of water exiting the outlet. The storage mount may be installed on a sink adjacent the faucet so that the oral hygiene device is a permanent fixture.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: September 6, 2011
    Inventor: J. Byron Alexander
  • Publication number: 20100266980
    Abstract: A dental water jet apparatus for adjusting a pressurized water stream from a pump to a tip moves pressurized water from a reservoir to a tip in fluid communication with the pump. A flow control knob may be turned to selectively adjust the water pressure supplied by the tip between a minimum and a maximum value. When the flow control knob is turned in a first direction, the volume of fluid directed towards the tip decreases and the volume of fluid returned to an inlet of the pump increases. Fluid may flow from the reservoir and ultimately into the tip to provide oral irrigation and/or cleaning of the teeth, gums, and tongue.
    Type: Application
    Filed: June 25, 2010
    Publication date: October 21, 2010
    Applicant: Water Pik. Inc.
    Inventors: Brian Boyd, Brian R. Williams, Kurt M. Taylor
  • Publication number: 20100035204
    Abstract: A dental fluid delivery system for use with a dental drill, comprising a coolant water supply, a drive air line, a water line, and a coolant mist air controller. The coolant water supply unit includes a controller and a water container, the water controller having a drive air inlet, a water inlet communicatively connected to the water container, a drive air outlet, and a water outlet. The drive air line is connected to the drive air outlet of the water supply unit. The water line is connected to the water outlet of the water supply unit. The coolant mist air controller is adapted for connection to a dental drill, the mist air controller having a drive air inlet, a drive air outlet, a water inlet, a water outlet, and a mist air outlet.
    Type: Application
    Filed: August 5, 2008
    Publication date: February 11, 2010
    Inventor: DeWayne L. Varnes
  • Patent number: 7575432
    Abstract: The invention concerns a handpiece for a surgical or dental tool (3), which can be inserted in the head of the handpiece (1) through an insertion hole (14) into a tool holder (2) and is rotationally supported by means of two axially separated bearings (12, 13), with positive torque transmission (8) to the tool (3) by the drive (9) installed in the handpiece, such that the tool possibly has a longitudinal bore (6) for supplying cooling liquid to the work site, and the handpiece (1) possibly has a short, fixed feed tube (7), which extends into the longitudinal bore and is sealed from the tool (3). To increase the torque that can be transmitted, the invention is characterized by the fact that the torque transmission (8) occurs in the region of the bearing (13) that is adjacent to the insertion hole (14). The invention also concerns the development of suitable tools.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: August 18, 2009
    Assignee: W & H Dentalwerk Bürmoos GmbH
    Inventor: Gerald Helfenbein
  • Publication number: 20090105707
    Abstract: A medical apparatus is constructed to have a proximal end and a distal end, with the distal end including a source of mechanical tissue disruption that is configured to treat or ablate a target surface. The source of mechanical tissue disruption includes a tissue-disrupting distal end, and the medical apparatus further includes a flavored particle output for directing flavored particles in a direction toward the tissue-disrupting distal end. Another feature of the present invention includes a medical apparatus having a proximal end and a distal end. The distal end of the medical apparatus includes a source of tissue displacement that is configured to move or displace a portion of the target surface, and that is formed to have a tissue-displacing distal end. The medical apparatus can be configured to have a flavored particle output for directing flavored particles in a direction toward the tissue-displacing distal end.
    Type: Application
    Filed: December 16, 2008
    Publication date: April 23, 2009
    Inventors: Ioana M. Rizoiu, Federico Pignatelli
  • Publication number: 20080261171
    Abstract: A prophy device incorporating a shaft and one or more corrugated members which eliminate the need for plastic gears of the prior art is disclosed. The corrugated members effectively transfer rotational energy from a shaft to an applicator. In another version, a flexible paste chamber contains polish within a housing of the device. A difference between a rotational speed at a front of the paste chamber and rear of the paste chamber causes the flexible chamber to contract on itself thereby automatically forcing polish from the chamber and into a polish applicator. A user dictates the amount of polish dispensed by controlling the rotational speed at the front of the paste chamber by pressing the polish applicator against the teeth of a patient. As the speed differential increases, the amount of polish dispensed increases as well. The design is simple and cost efficient such that the design overcomes many shortcomings of the prior art.
    Type: Application
    Filed: June 26, 2008
    Publication date: October 23, 2008
    Inventor: Andre Michaelian
  • Patent number: 7435085
    Abstract: In the case of a treatment device, in particular a dental treatment instrument, having a tool, such as a dental drill, driven by a drive unit, and a conduit for delivery of a cooling medium to a treatment site worked by the tool, the quantity of the cooling medium delivered to the treatment site is dependent upon the removal power of the tool or upon the torque exercised by the tool.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: October 14, 2008
    Assignee: Kaltenbach & Voigt GmbH
    Inventors: Bernd Gugel, Jorg Schopperle
  • Publication number: 20080118889
    Abstract: The present invention discloses an auxiliary cooling water supplier for a dental implant device, which comprises a main machine having a built-in water-supply module, a conduit, an outlet module, a flowrate control circuit and a pedal. The main machine further comprises a control unit; the control unit is connected to the flowrate control circuit, and the flowrate control circuit is connected to the water-supply module. The user can use the control unit to regulate the flowrate of the outlet module or to switch between an automatic water-supply mode and a pedal control mode. The auxiliary cooling water supplier for a dental implant device of the present invention has the advantages of lightweight, portability, maneuverability, simple structure and easy operation.
    Type: Application
    Filed: November 21, 2006
    Publication date: May 22, 2008
    Inventor: Wen-Hao Wang
  • Publication number: 20070237726
    Abstract: Disclosed are oral hygiene regimens comprising a plurality of steps involving the use of two or more oral care products containing actives effective to provide one or more benefits including cleaning, antimicrobial, antiplaque, anticaries, anti-calculus, anti-demineralizing, anti-erosion, antisensitivity/desensitizing, whitening, surface conditioning, polishing, and pH-balancing, wherein the plurality of steps are conducted and sequenced for maximizing delivery of oral care actives to target surfaces of a subject's oral cavity thereby achieving optimum oral health and hygiene benefits. In one aspect, a regimen comprises at least once daily of each of the following steps: (a) applying an antimicrobial dentifrice to oral cavity surfaces, and (b) rinsing the oral cavity with an antimicrobial mouthrinse, wherein at least one of steps (a) and (b) is conducted prior to retiring at night.
    Type: Application
    Filed: April 5, 2007
    Publication date: October 11, 2007
    Inventors: Donald James White, Aaron Reed Biesbrock, Malgorzata Klukowska
  • Patent number: 7217127
    Abstract: A switching device for an irrigation line includes two flexible supply tubes (4a, 4b), each of the tubes connecting a flask containing an irrigation fluid to a handpiece via a peristaltic pump. The device includes at least one compression element (34a, 34b) and control members (32) which can apply the compression element alternatively to each of the flexible supply tubes (4a, 4b) in such a way as to squeeze and block the tube. The control members (32) are designed such that, when one of the tubes is being squeezed in order to block the passage of the fluid through same, the other tube is not being squeezed so that the fluid can flow through the other tube.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: May 15, 2007
    Assignee: Societe Pour la Conception des Applications des Techniques Electroniques - Satelec
    Inventors: Dominique Mariaulle, Philippe Tichon
  • Patent number: 7160108
    Abstract: The all-in-one prophy angle for cleaning teeth contains a self dispensing solid core prophy polish which allows the operator to perform an entire prophylaxis of the teeth with the efficiency of not having to remove the handpiece from the mouth, further, cross contamination from splatter is minimal to none. The prophy cup and solid core polish are in a changeable cartridge form allowing the prophy handpiece to be reusable.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: January 9, 2007
    Inventor: Carlos Daniel Jaffe
  • Patent number: 7131838
    Abstract: The present invention relates to dental apparatus including a fluid reservoir having a connection part, and a fluid reservoir receptor section having a reception part. The connection part includes a cylindrical member, a shaft member slidably arranged through the cylindrical member, and having a channel, a fluid passage defined between the channel and the cylindrical member, and an air passage formed in the cylindrical member for taking external air in. The openings of the fluid and air passages are openable by sliding the shaft member. The reception part includes a passage, a valve in the opening of the passage for taking external air in, and a releaser member for sliding the shaft member to open the openings of the fluid and air passages when the fluid reservoir is installed on the fluid reservoir receptor section.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: November 7, 2006
    Assignee: Nakanishi, Inc.
    Inventor: Tetsuji Suzuki
  • Patent number: 6939535
    Abstract: A method for preventing tooth decay by initially treating the tooth surface with a laser with a coherent or noncoherent light source. This process makes the tooth more resistant to acid and more able to bond fluoride, thus requiring a lower concentration of fluoride. The method allows for a deeper penetration of the tooth then previously accomplished with other methods.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: September 6, 2005
    Assignee: Nocari, LLC
    Inventors: Colette Cozean, Lynn Powell, Samir Nammour
  • Patent number: 6902337
    Abstract: A dentifrice dispensing electrical toothbrush using a replaceable dual-channel brush head. The dual-channel brush head has a first channel for housing a drive shaft for bristle oscillation and a second channel for dispensing the dentifrice material. The brush head is mounted on the dual-channel connector of the brush handle which contains a drive mechanism and a pumping mechanism that dispenses dentifrice material from a cartridge in the handle. A manual dispensing configuration uses an external rubber button and an electrical dispensing configuration uses a rotary solenoid for actuating an internal rubber button that applies pumping pressure to the dentifrice material. The latter benefits arthritis sufferers, as no external squeezing action is required.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: June 7, 2005
    Inventor: Youti Kuo
  • Publication number: 20040191721
    Abstract: The invention relates to a method for sterilizing/disinfecting water circuits of dental units (1) comprising dental handpieces (2) and a water circuit (3) for supplying liquid from a main supply (4) through corresponding circuit legs or branches (3a, 3b, 3c, 3s). The method comprises at least the following steps: introducing a disinfectant/sterilizing liquid in the water circuit (3) for a predetermined length of time; draining the disinfectant/sterilizing liquid out of the circuit (3) through the circuit legs or branches (3a, 3b, 3c, 3s); and introducing the user liquid in the water circuit (3); the method further comprising, between the steps of introducing and draining out the disinfectant/sterilizing liquid and the user liquid, a step of introducing a fluid from an independent branch (5) in the water circuit (3) for a predetermined length of time, depending on defined parameters, in order to expel from the water circuit (3) all the remaining liquid in the water circuit (3).
    Type: Application
    Filed: March 25, 2003
    Publication date: September 30, 2004
    Applicant: CASTELLINI S.p.A.
    Inventor: Franco Castellini
  • Patent number: 6783365
    Abstract: A dental handpiece having a filter unit containing a filter that minimizes the exposure of patients to pathogens found in the dental unit water lines (DUWL) while promoting frequent replacement of DUWL filters, by providing a disposable microfiltration filter that is easily replaced at low cost. A disk or membrane type filter is placed in a disconnectable autoclavable filter unit in the handle of an existing design dental instrument such that the form and function of the dental instrument are not adversely affected. The components of the handpiece, including the filter unit, are autoclavable, making the handpiece with its filter unit both economical to produce and ideal for its intended use.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: August 31, 2004
    Inventors: Alan Seltzer, Mark Friedman
  • Patent number: 6766549
    Abstract: A toothbrush system using a combination of mechanical force and fluid dynamics to increase the efficiency of plaque removal from the teeth and gums. The toothbrush includes a head unit with an irrigator nozzle and a hydraulically actuated and continuously variable bristle platform which negotiates the complex surface geometry found in the mouth of a user. The irrigation nozzle is powered by the pulsing of an anti-microbial irrigant which gives the toothbrush head unit the distinguishing ability of being able to “feel” the contour of the teeth and to “find” the spaces between them. Once the sensing irrigator nozzle finds the spaces between the teeth, it extends into the area, and releases the anti-microbial liquid directly into the space. The configured bristle tufts of the head unit automatically adjust their position for cleaning under the gum line, between the teeth, as well as flat surfaces.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: July 27, 2004
    Inventor: Michael F. Klupt
  • Patent number: 6729942
    Abstract: The present invention provides a portable dental system for use in areas having inadequate sources of power, either for human or for veterinary dentistry. The system provides one or more handpieces, each driven driven by a pressurized nitrogen gas contained in a portable tank. A water reservoir is also provided for medicated water to be applied to the tooth site. The system has two channels to which either a conventional dental handpiece or an abrasive handpiece can be attached. When two abrasive handpieces are attached, two different abrasive materials may be used by the system, one material for cleaning and one material for cutting or abrading.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: May 4, 2004
    Inventor: William H. Harris
  • Publication number: 20040009453
    Abstract: A tooth mobility measuring apparatus of this invention includes an impact mechanism which injects or sucks a fluid to apply an impact to a tooth, a sensor which detects the displacement state of the tooth which is moved by the impact force from the impact mechanism, and a tooth mobility calculation mechanism which calculates the tooth mobility of the tooth on the basis of the output signal from the sensor. The displacement state of the tooth is measured without touching the tooth.
    Type: Application
    Filed: July 9, 2003
    Publication date: January 15, 2004
    Applicant: TOEI ELECTRONIC CO., LTD.
    Inventors: Shigeru Shoji, Masahiro Otsuka
  • Publication number: 20030162144
    Abstract: A dental unit comprises at least a main water circuit (1) for supplying a fluid to main and accessory medical instruments (2) on the dental unit (100) and sub-circuits, namely, a first sub-circuit (3) and a second sub-circuit (4), for dividing the fluid supply between the main or accessory medical instruments (2a, 2b) mounted on a first tray (5) and those mounted on a second tray (6). The two sub-circuits (3, 4) have means (7, 8) constituting a first continuous drain (7) and a second continuous drain (8), respectively, designed to enable the fluid in the first and second sub-circuits (3, 4) to be continuously renewed.
    Type: Application
    Filed: February 28, 2003
    Publication date: August 28, 2003
    Applicant: CASTELLINI S.p.A.
    Inventor: Franco Castellini
  • Publication number: 20030096213
    Abstract: A dental tool for use with an ultrasonic transducer, the tool being substantially elongated and defined by a shaft having a proximal end with a coupling attachment at the proximal end for attachment to an ultrasonic transducer, and a distal end having a tip configured for performing excavation, finishing, removal and a dental polishing procedures, and a fluid passage extending from the proximal end to the distal end and exiting at a port at or proximate the tip.
    Type: Application
    Filed: November 20, 2001
    Publication date: May 22, 2003
    Inventors: Teresa R. Hickok, Clifford J. Ruddle
  • Publication number: 20030077552
    Abstract: A dental apparatus comprises means for allowing a connection of a fluid reservoir containing a fluid which is supplied to a dental handpiece under control of a valve arrangement by a suction pump which has a suction line that is connected with a reception member of a connector piece of the fluid reservoir on which a closure one-way check valve is arranged which is biased by a closure spring towards a closing position on a valve seat of the connector piece which is further provided with an aeration one-way check valve over an aeration opening for compensating a negative pressure which will be produced inside of the fluid reservoir when the closure one-way check valve is opened at its valve member and fluid is drawn from the fluid reservoir for being supplied to the handpiece.
    Type: Application
    Filed: March 21, 2002
    Publication date: April 24, 2003
    Applicant: Ferton Holding S.A.
    Inventors: Christian Decosterd, Lutz Beerstecher
  • Publication number: 20020119416
    Abstract: A dental handpiece having a filter unit containing a filter that minimizes the exposure of patients to pathogens found in the dental unit water lines (DUWL) while promoting frequent replacement of DUWL filters, by providing a disposable microfiltration filter that is easily replaced at low cost. A disk or membrane type filter is placed in a disconnectable autoclavable filter unit in the handle of an existing design dental instrument such that the form and function of the dental instrument are not adversely affected. The components of the handpiece, including the filter unit, are autoclavable, making the handpiece with its filter unit both economical to produce and ideal for its intended use.
    Type: Application
    Filed: March 25, 2002
    Publication date: August 29, 2002
    Inventors: Alan Seltzer, Mark Friedman
  • Patent number: 6439966
    Abstract: A hand-holdable apparatus useful for abrading a surface is provided. The invention is particularly useful for dental applications using a stream of abrasive particles suspended in a gas stream to abrade the surface of a tooth. The apparatus of the invention may be modified to easily minimize “bleed down” of the gas/abrasive stream using a pinch valve and to remove worn flexible conduits for routine maintenance and autoclaving of the apparatus. The apparatus of the invention also provides a novel pick-up assembly for delivery of abrasive particles.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: August 27, 2002
    Assignee: Danville Manufacturing Inc.
    Inventors: Craig R. Bruns, Mark S. Fernwood, Thomas S. Blake
  • Publication number: 20010041323
    Abstract: A unit for detecting contaminating agents, especially in dental surgeries, comprises detecting-transducing means of a chemical, biochemical or electrical type designed to detect a quantity as a function of a variable to be checked and to provide an electrical signal corresponding to the quantity detected; and means for signaling the quantity, connected to the detecting-transducing means.
    Type: Application
    Filed: June 13, 2001
    Publication date: November 15, 2001
    Applicant: Castellini S.p.A.
    Inventor: Franco Castellini
  • Patent number: 6315557
    Abstract: A rotary dental instrument for rotating a cutting tool at a repair site of a patient's tooth and providing an irrigating liquid to the repair site. The instrument includes a handpiece having a rotating file coupled to a motor and an irrigating port coupled to a pump. A control associated with the instrument automatically starts discharge of the irrigating liquid from the port at a predetermined time after starting the motor. This provides an automatic delay between rotation of the rotatable element holding the file and discharge of irrigating liquid from the port. A corresponding method involves providing a starting input to the motor, waiting a predetermined amount of time after the cutting tool or rotatable element begins rotating, and automatically discharging the irrigating liquid after the predetermined amount of time has elasped.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: November 13, 2001
    Assignee: Ormco Corporation
    Inventor: Keith Messick
  • Patent number: 6290498
    Abstract: The water valve links a dental handpiece to its tubing. The tubing conventionally has a high-pressure air tube in which air will flow when the handpiece is selectively activated, a cooling water tube for cooling the handpiece head and the patient's tooth during use of the handpiece head, a cooling air tube for converting the cooling water flow into an atomized water spray, and a discharge tube, in which part of the high-pressure air flow are carried away from the dental handpiece. The water circulation device includes a valve which has four inner conduits each operatively linking the respective tubes to the dental handpiece. Furthermore, a bypass channel is formed in the valve, between the valve member water conduit and discharge conduit.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: September 18, 2001
    Inventor: Claude Lachapelle
  • Patent number: 6270342
    Abstract: A handpiece is presented which utilizes fluid channels instead of electric wiring to provide power to a treatment device. These fluid channels operate a micro-turbine generator that provides electrical energy to treatment devices. Each micro-turbine generator generates electrical energy for powering at least one electricity consuming functional device; wherein said electricity consuming functional device is selected from the group; a compact laser, an electromechanical dental drill, an ultrasound generator, a microwave generator and, an activator for treatment chemicals. In particular this device provides energy to a dental hand-piece without the need for electrical wiring or optics between the hand-piece and the control apparatus. One or more fluid channels permit fluids to flow between the control apparatus and the hand-piece. This flow of fluid operates the micro-turbine, which in turn produces energy to operate a medical/dental device.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: August 7, 2001
    Assignee: CeramOptec Industries, Inc.
    Inventors: Wolfgang Neuberger, Michael Quade
  • Patent number: 6264666
    Abstract: A system for the removal of epidermal and dermal skin through the use of a pressurized stream of water. The surgeon chooses the pressure of the water to obtain the desired abrasive affect. In one embodiment of the invention, a benign abrasive is added to the water to assist in the removal of the surface cells of the skin. In other embodiments, a variety of medications are added to the water such as: anesthetics to deaden the skin being abraded; coagulants to minimized bleeding in the abraded area; and antiseptics to combat infection after treatment is applied. In one embodiment of the invention, a catch reservoir is positioned around the site being treated to collect and withdraw the spent liquid and removed cells.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: July 24, 2001
    Inventors: William P. Coleman, Ren-Yeu Tsai
  • Patent number: 6247929
    Abstract: A hand piece assembly for an oral irrigator having a pressure control valve assembly, a stop valve, and a housing. The pressure control valve assembly has a valve body having an intermediate section having a substantially cylindrical bore therethrough. A valve gate having a cylindrical portion with an orifice bored therethrough has a control arm coupled to a guide portion for rotation within the valve body. A slide control is positioned on the housing and is coupled to guide portion of the valve gate, so that as the slide control moves linearly along a portion of the housing, the cylindrical portion of the valve gate correspondingly rotates within the bore of the valve body to adjust the pressure or flow rate of the fluid passing through the pressure control valve assembly.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: June 19, 2001
    Assignee: Teledyne Industries, Inc.
    Inventors: Timothy A. Bachman, Gary Ashurst, Floyd J. Binder
  • Patent number: 6196841
    Abstract: A filter for spray ducts of dental or surgical handpieces, wherein transfer of media from a coupling hose to the handpiece takes place through a plurality of small openings in an essentially cylindrical portion of the coupling hose of the handpiece, wherein the size of the openings determines the filtering properties. The essentially cylindrical portion has a collection duct located radially outside of the filter openings, wherein the collection duct is connected with a spray line.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: March 6, 2001
    Assignee: Dentalwerk Bürmoos Gesellschaft m.b.H.
    Inventor: Norbert Schatz
  • Patent number: 6179614
    Abstract: A dental instrument includes a handpiece having a nozzle from which is ejected a stream of abrasive particles, and a valve operated under the control of a microprocessor which regulate, as selected by a user, the stream of abrasive particles either as a continuous flowing stream or a pulsed flowing stream. The microprocessor enables the valves to be operated at a plurality of different pulse durations. A remote control unit, small enough to fit into the palm of a hand of a user, provides control of the basic parameters of the instrument, allowing the instrument to be conveniently placed and allowing fingertip control of the instrument without having to move away from the patient. The handpiece is integrated with a main dental unit foot control for a dental drill, so that the main dental unit foot control operates both the dental drill and the handpiece.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: January 30, 2001
    Assignee: Kreativ, Inc.
    Inventors: DeLynn Roy Elrod, Joseph Mark Forehand, V. Kim Kutsch, Bryan G. Moore
  • Patent number: 6099306
    Abstract: A tooth powdering applicator. A container for holding infrared reflective powder has an inlet connected to a source of pressurized fluid and an outlet connected to a rigid outlet tube. A cover is removably threaded on the container to allow for insertion of the powder. The container includes a circuitous path through which the pressurized fluid is directed lifting the powder therein and forcing the powder out through the tube. The tube is rotatably mounted to the container. An optional push button valve is provided to control the flow of fluid.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: August 8, 2000
    Assignee: Powder Meister, Inc.
    Inventor: David E. Lawler
  • Patent number: 6086368
    Abstract: A portable dental apparatus for treating patients or animals in remote locations comprises a dental drill driven by an air turbine; a pressurized air supply for driving the turbine and for pressurizing a water supply; and connections and valving for operating the drill and cooling it with a stream of water from the water supply and for squirting air or water from the air and water supplies with a squirt nozzle. Tile pressurized air supply derives its air from manual pumping, preferably with a double-action pump and a check valve to minimize fluctuations in the air flow rate. Such a pump either forms part of the air supply or is used to fill an inflatable container. The air supply may consist of the inflatable container alone, or of one or two double-action pumps, or of the container and one pump.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: July 11, 2000
    Inventor: Robert G. Randolph
  • Patent number: 6019905
    Abstract: A method for providing an active sanitized aqueous medium in a dental treatment operation. A chlorinated water supply is treated with a physiologically-safe acidifier to provide a substantially enhanced hypochlorous acid concentration. The water is treated to convert the hypochlorite ion into the much more bacteriocidal undisassociated hypochlorous acid. A reservoir is provided at a suitable location, such as a dental treatment station. Potable water from a suitable source is supplied to the reservoir. The potable water contains free chlorine in an amount of at least 0.1 ppm. The water in the reservoir is treated with a physiologically-safe acidifier selected from the group consisting of inorganic acids, organic acids, and acid esters which have GRAS status.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: February 1, 2000
    Inventor: Mark B. Waggoner
  • Patent number: 5944520
    Abstract: A fully autoclavable dental-hand-piece assembly which includes a unique, highly miniaturized, internally disposed, one-way check valve that effectively prevents microbial contamination from reaching the cooling fluid supply lines that provide cooling fluid to the unit. The one-way check valve is specially designed to be able to effectively withstand the high temperatures required in the autoclaving step to which the hand piece, including the check valve, is exposed. Uniquely, the one-way check valve can readily be installed either within the hollow handle of a conventional dental hand piece or within a conventional, universal dental-hand-piece coupler without the necessity of making any substantial modification to the design of the hollow handle or the universal coupler. Also disclosed is a novel coupler assembly for coupling together the hand piece and the air and water supply lines.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: August 31, 1999
    Inventor: Albert Ash
  • Patent number: 5944521
    Abstract: A tooth powdering applicator. A container for holding infrared reflective powder has an inlet connected to a source of pressurized fluid and an outlet connected to a rigid outlet tube. A cover is removably threaded on the container to allow for insertion of the powder. The container includes a circuitous path through which the pressurized fluid is directed lifting the powder therein and forcing the powder out through the tube. The tube is rotatably mounted to the container. An optional push button valve is provided to control the flow of fluid.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: August 31, 1999
    Assignee: David E. Lawler, P.C.
    Inventor: David E. Lawler
  • Patent number: 5934904
    Abstract: A dental instrument includes a handpiece having a nozzle from which is ejected a stream of abrasive particles, and valves operated under the control of a microprocessor which regulate, as selected by a user, the stream of abrasive particles either as a continuous flowing stream or a pulsed flowing stream. The microprocessor enables the valves to be operated at a plurality of different pulse durations. A remote control unit, small enough to fit into the palm of a hand of a user, provides control of the basic parameters of the instrument, allowing the instrument to be conveniently placed and allowing fingertip control of the instrument without having to move away from the patient. The handpiece is integrated with a main dental unit foot control for a dental drill, so that the main dental unit foot control operates both the dental drill and the handpiece.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: August 10, 1999
    Assignee: Kreativ, Inc.
    Inventors: DeLynn Roy Elrod, Joseph Mark Forehand, Vernon Kim Kutsch, Bryan G. Moore
  • Patent number: 5927976
    Abstract: A medication injection method and related device with a hollow drill bit for delivery of anesthetic or other medication through the hollow drill bit are disclosed. The device preferably includes a hollow drill bit, a disposable fluid dispenser, a handpiece, a handle, and a foot control pedal. The device can deliver anesthetic or other medication before, during and/or after drilling of a tooth or bone structure without removing the drill bit. The invention relates to an intraosseous and/or hard tissue drug delivery system that combines perforating and drug delivering functions in one device and one operation.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: July 27, 1999
    Assignee: Cyberdent, Inc.
    Inventor: Gin Wu