Dental (e.g., Waterpick@) Patents (Class 601/162)
  • Patent number: 5636987
    Abstract: Dental treatment instrument adaptable to a pulsed liquid generator constituted by a handpiece comprising a compressible tube (13) at least one section of which is accessible to a compression element (20), said compressible tube establishing fluid communication between an irrigation liquid feed and an irrigation liquid outlet (3) which is either an irrigation catheter (10), or an attachment system (15, 17), of such a catheter and dental treatment apparatus provided with such an instrument.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: June 10, 1997
    Inventor: Raphael Serfaty
  • Patent number: 5623746
    Abstract: Large-diameter cylindrical portion (3) is formed in water passage (2) of a water-spraying nozzle (1) in the vicinity of the tip portion of said nozzle. Piston (5) which is housed in aforementioned cylindrical portion (3) is driven in a reciprocating manner, so that the tip portion of bristle bundle (4) which is implanted in the front surface of aforementioned piston (5) is caused to move in and out via water-spraying opening (6) located at the tip of aforementioned nozzle (1).
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: April 29, 1997
    Assignee: Euronica Corporation
    Inventor: Sugimoto Ichiro
  • Patent number: 5573398
    Abstract: A dental hygiene device has a brush assembly and a control unit. The brush assembly has a handle with suction and irrigation conduits passing therethrough. A brush head has two or more parallel rows of bristles. Suction and irrigation ports are positioned between the rows and coupled to the suction and irrigation conduits. Suction and irrigation tubes are coupled to the suction and irrigation conduits. The control unit has an irrigation outlet coupled to the irrigation tube and an irrigation pump, and a supply reservoir coupled to the irrigation pump. The supply reservoir contains a dental hygiene solution that is pumped from the supply reservoir through the irrigation outlet into the irrigation tube. The irrigation tube transmits the solution to the irrigation conduit and then to the irrigation port, where it is expelled. A suction inlet is coupled to the suction tube, and a suction pump is coupled to the suction inlet.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: November 12, 1996
    Inventors: Lawrence E. Towle, Richard A. Cloonan
  • Patent number: 5503553
    Abstract: In order to take care of the oral hygiene needs of aged or infirm patients in health care facilities, or the like, a relatively small, compact, self-contained device can be carried by a lay operator from room to room. Fresh water in one container carried on the device is replenished from each room's fresh water faucet and waste water in another container is disposed of in the room's sink. Each patient has an individual tooth brush adapted to engage a handle connected by flexible tubing to the portable device and suitable switches enable the operator to control the operation of electrically actuated components effective to discharge fresh water through the bristles of the brush and vacuum waste water from the vicinity of the brush tip end. Particular care is built into the design of the unit to prevent cross-contamination and electrical shock hazard.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: April 2, 1996
    Inventor: John E. Hines
  • Patent number: 5484281
    Abstract: A shower mounted dental hygiene device is provided, which consists of a multipurpose direction valve to direct water flow to a shower head, dental hygiene device or both, a pulsating device, a dentifrice introduction device and an erogdynamically designed handle having a quick attachment device for interchanging dental hygiene attachments.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: January 16, 1996
    Inventors: Alex Renow, Barry S. Renow
  • Patent number: 5458563
    Abstract: The invention relates to toothbrushes and particularly with toothbrushes for bedridden patients. Cleaning of the teeth of bedridden patients is particularly difficult and especially the rinsing of the mouth. It is an object of the present invention to provide a toothbrush that overcomes this difficulty, an objective that is met by a construction comprising a bristled head and a handle, there being a fluid supply associated with the handle and having an outlet emerging in the bristles on the toothbrush head, the fluid supply being connectable to a source of fluid, and there being a separate fluid disposal associated with the handle having an inlet associated with the bristles on the toothbrush head and to direct spent fluid away from the bristle head.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: October 17, 1995
    Inventor: Timothy N. Stewart
  • Patent number: 5399089
    Abstract: An oral hygiene appliance includes a base on which upstands a cabinet having top, front and rear vertical walls. A pair of recesses are formed in either side of that front wall. A plurality of seats within those recesses are each receptive of a jet tip. An inlet is defined in the top wall. A cover is shaped to envelope the cabinet over the recesses and the inlet with the cover being invertable to serve as a reservoir. Disposed within the cabinet is a pump responsive to a pressure control for delivering water received from the inlet.Seated toward one end of the base is the lower end of an elongated electric toothbrush body. Individual brushes are seated in the base around the body and those brushes ordinarily to the rear of the body are elevated on a pedestal. At the opposite end of the base is a well in which is seated the lower end of a handle in which a faceted lower end of one of the jet tips may be captivated.
    Type: Grant
    Filed: August 11, 1993
    Date of Patent: March 21, 1995
    Assignee: Teledyne Industries, Inc.
    Inventors: Kim T. Eichman, John E. Smith, Clifford J. Snyder, Gerald T. Swanson
  • Patent number: 5368548
    Abstract: The hydraulic apparatus comprises a handpiece connected via a pipe to a pump through an outlet orifice of the casing and a liquid reservoir feeding the pump, in the position of non-utilization the handpiece and the pipe rolled up in a spiral are accommodated on a platform. The end of the pipe connected to the outlet orifice of the casing is installed rotationally movably about the axis of the pipe. Preferably, the platform is itself installed on the casing in a movable manner about an axis perpendicular to the plane of this platform, by a turning adapter mounted in the outlet orifice of the casing.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: November 29, 1994
    Assignee: Les Produits Associes LPA-Broxo S.A.
    Inventor: Jean-Pierre Jousson
  • Patent number: 5344317
    Abstract: The present invention is directed to an appliance for oral hygiene, in particular an oral irrigating apparatus 10, comprising a hand-held unit 12 and a base unit 14 interconnected by a fluid conducting hose 19 and electrical conductors 21, 23. By means of an operating means 33 arranged on the handle section 28 of the hand-held unit 12, two operating parameters, particularly the On/Off state and the jet pressure of the oral irrigating apparatus 10, can be varied.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: September 6, 1994
    Assignee: Braun Aktiengesellschaft
    Inventors: Lothar Pacher, Gustav Gassner, Gottfried Voigt, Peter Hilfinger
  • Patent number: 5323770
    Abstract: A mouth cavity sanitary device comprising: an outer case formed in a cylindrical shape so as to be capable of being held by one hand; an elongated drive unit detachably accommodated in the outer case from a lower portion, the drive unit having a pump thereof disposed in a lower portion of the outer case; a battery detachably accommodated in the outer case from also the lower portion so as to run parallel to the drive unit, the battery being electrically connected to the motor of the drive unit; a reservoir chamber formed from the upper portion of the outer case to the portion in which the drive unit and the battery are respectively accommodated, the reservoir chamber being connected to the suction side of the pump; and a nozzle the base portion of which is detachably fastened to the upper portion of the outer case, the nozzle being connected to the discharge side of the pump.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: June 28, 1994
    Assignee: Ricoh Elemex Corporation
    Inventors: Kazumasa Ito, Toshio Makino, Masaki Ohbayashi, Shoji Koike, Jun-ichi Yoshida
  • Patent number: 5321865
    Abstract: The oral hygiene device of the invention comprises an interchangeable end and a body (10) extended to take said end. The end may be either a movable one carrying a toothbrush or a fixed one (11) consisting of a nozzle designed to emit a pulsed jet of water generated by a pump fitted in the body (10). The movable end is designed to be given a linear and pivoting alternating movement by a drive mechanism (15) actuated by a motor (16) fitted inside the body (10).
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: June 21, 1994
    Assignee: Trisa Burstenfabrik AG Triengen
    Inventor: Charles Kaeser