US3811432A - Device for operating a pump so as to produce therefrom a pulsating jet of liquid - Google Patents

Device for operating a pump so as to produce therefrom a pulsating jet of liquid Download PDF

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Publication number
US3811432A
US3811432A US00323742A US32374273A US3811432A US 3811432 A US3811432 A US 3811432A US 00323742 A US00323742 A US 00323742A US 32374273 A US32374273 A US 32374273A US 3811432 A US3811432 A US 3811432A
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frequency
internal gear
percent
per minute
pump
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US00323742A
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English (en)
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M Moret
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H13/00—Gum massage
    • A61H13/005—Hydraulic gum massage
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/0061—Air and water supply systems; Valves specially adapted therefor
    • A61C1/0084—Supply units, e.g. reservoir arrangements, specially adapted pumps
    • A61C1/0092—Pumps specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
    • A61C17/028—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication with intermittent liquid flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/38—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by hydraulic motor, e.g. water motor

Definitions

  • ABSTRACT Device for operating a pump so as to producetherefrom a pulsating jet of liquid for feeding to a handpiece for medical care,- in particular for tooth and mouth care, in which the frequency of the liquid impulses, are capable of being modulated while maintaining a nearly constant amplitude of the liquid pressure.
  • This invention relates to devices for operating a pump so as to produce therefrom a pulsating jet of liquid utilizable, usually by means of a suitable handpiece, for general medical care of the body but more particularly for oral hygiene especially of the teeth and gums.
  • an efficient massage of the gum can be obtained only by means of low frequencies of the pulsating jet of liquid for the following reasons:
  • the gums form a thin cover without muscle over parts of the jaw bone and over the roots of the teeth which thin cover, in consequence, is of very reduced elasticity.
  • the capillaries of the gums are like an inelastic tube, the diameter of which is only about that of a blood particle (7 I Micron). The gums and the capillaries thereof are submitted to the cleaning and massaging treatment.
  • the arteries and veins which are located deeper and which are like elastic tubes by comparison with said capilliaries, are not affected directly, but only indirectly by said cleaning and massaging treatment. Because of the reduced elasticity of the gums, the tendency for the retration of the tissue, as a consequence of the successive liquid inpulses, does not occur. Instead, a sufficient period of time must be given in order that the gums are able, between two successive liquid impulses, to go back to their nonnal form.
  • the optimum impulse frequency for massage can vary according to the individual'and, moreover, beneficial specific physiological and neurological effects can be obtained particularly wth several various frequencies.
  • a single fixed massage frequency is thus in general insufficient to obtain a satisfactory result.
  • the-rate of modulation must be high in order to obtain effects, about percent for example,
  • the maximum pressure amplitude must not surpass the pain threshold of the user; these requirements domean that the minimal pressure amplitudes are very low and thus, in the minima ofthe modulations the impulses have no practicaleffect, thus reducing the total rate of efficiency of the device. Moreover, the great fluctuations of amplitude cause disturbing noises and unpleasant vibrations for the user.
  • FIG. I is a cross-section of a first embodiment of a device according to the invention
  • FIG. 2 is a cross-section taken on the line II II of FIG. 1;
  • FIG. 3 is a more detailed view of that part of FIG. 1
  • FIG. 4 is a cross-section of a second embodiment of a device according to the invention.
  • FIG. 5 is a cross-section taken on the line V V of FIG. 4;
  • FIG. 6 is a schematic view of the oscillating mechanism of the internal gear according to a third embodiment of the invention.
  • FIGS. 7 and 8 are diagrams showing the liquid impulses to be obtained with known devices with the pressure P of liquid impulse plotted against time t, and
  • FIG. 9 is a diagram which shows, with a device according to the invention, the modulation of the frequency of liquid impulses obtained, and
  • FIG. 10 shows the overall combination of reservoir, pump unit and jet nozzle connected thereto by a conduit.
  • a toothed wheel 4 on a shaft 2 of a motor 1 mounted on a frame-24 is turning with a toothed-wheel 5 and a sun-wheel 3 of a planet gear.
  • Parts of that planet-gear are: the three planet-wheels 8a, 8b, 80, with their shafts 9a, 9b, 9c (FIG. 2,) turning at the periphery of sun-wheel 3, the plate 7 on aside of which the shafts 9a, 9b, 9c of said planet-wheels are fixed and which forms an integral part of ahollow coaxia shaft an i er a seam), s erna tLthed surface of which rneshes with the planetwheels Saftib, 8c freely iimunted on motor shaft z a &ll er bearing 21 being introduced between said shaft and said internal gear.
  • the hollow shaft ltl is freely rotatable on a shaft 11 by means ofbearir gs lg andjj and formsii feffect an extension of the motoi" shaft 2, the bearing 14 being mounted an aperture of a support 13 fixed on frame 24.
  • a disc 10a At the external extremity of hollow shaft I0, a disc 10a is placed, which supports an eccentric pin 15 which engages freely in a longitudinal slot 17a of a slide 17 7 (FIG. 3) that is fixed on a rod 18 of 'a piston 19 of a water pump 16.
  • the lower free extremity (FIG. 1) of pistonrodlS is introduced in an aperture ofan horizontal arm 13a of a support I3 of the frame 24.
  • the piston 19 of the pump 16 is given a to-and-fro movement-by the eccentric pin 15 upon rotation of the plate 7.
  • the length of the longitudinal slot 17a must be at least equal to the diameter of the largest circle described by the pin 15 during a of a-pulsating liquid jet.
  • the limits between which the impulse frequency changes during a period of modulation correspond to the amplitude of the impulse frequency and depends, in addition to the number of revolutions to the toothed-wheel 5, on the eccentricity of pin 6 in relation to the axis of rotation of toothed-wheel 5, and the distance between the pin 6 and the axis of rotation of internal gear 20. Given the fact that this last distance is different for both half oscillations of internal gear 20, as a result, the modulation of the frequency occurs in a slighty asymetric way in relation to the intermediate impulse frequency.
  • the throw or amplitude of the piston 19 remains constantduring such modulation, so that the maximum pressure of each liquid impulse, in other words the pressure amplitude of each liquid impulse, remains constant too, when the outflow aperture of the pump or jet diffuser is sufficiently small in comparison with the cross-section of the piston 19 or pump reservoir.
  • a bifurcated member having parallel arms 53a and 53b is pivotable about pin 54 secured in a protrusion 55 of the frame 24.
  • Engaging in a longitudinal slot 52 formed by said parallel arms is the eccentric pin 6' mounted on toothed wheel 5 and eccentric pin 51' mounted on internal gear 50.
  • the bifurcated member pivoted on the frame 24 according to the embodiment of FIGS. 4 and 5 can be also used in a device according to FIGS. 1 and 2 in which the sunwheel shaft is the inpt shaft and the plate(7) shaft is the output shaft. Also the arrangement of FIGS. 1 and 2 including the longitudinal slot 22 in the internal gear which slot is engaged by the pin 6 of toothed-wheel 5, can be incorporated in an embodiment according to FIGS. 4 and 5, the plate wherein the plate 37 shaft is the input shaft and the sunwheel shaft 40 is the output shaft. In a third embodiment according to FIG.
  • the oscillating movement of the internal gear 60 is imparted by means of a wheel 61 driven by the motor shaft, both wheels being connected with each other by a rod 62 which is pivotally connected to each such wheel a an eccentric point thereof as shown.
  • This arrangement can be dimensioned in such a way that the asymmetry of the oscillation amplitudes of internal gear 60 and thus the asymmetry of the modulation of the frequency are most reduced.
  • the modification of the impulse frequency can be achieved at the rate of 300 times a minute between a minimum impulse fequency of about 2,000 impulses per minute and a maximum impulse frequency of about 4,000 impulses per minute. That is, the amplitude of the impulse frequency varies between the intermediate impulse frequency 50 percent and the intermediate impulse frequency-50 percent.
  • the device can be dimensioned in such a way that the impulse fre quency varies between a minimum of value of 600 to 2,500 impulses minute and a maximum value of 3,500v to 5,000 impulses minute and the number of periods of frequency modification between 70 and 600, preferably between 200 and 400 per minute.
  • the intermediate impulse frequency is situated between 2,500 and 3,500 impulses minute, preferably at 3,000 impulses min.
  • the modification of the impulse frequency can be at least i 20 percent of the intermediate impulse frequency and the number of the periods of the frequency modificaton between 2 percent and 25 percent, preferably between 6 percent and 12 percent, of the intermediate impulse frequency.
  • the user can adjust the maximum pressure of liquid impulses with a pressure valve according to his personal need.
  • the invention is not limited to the device described with a planet gear system, but can be extended to other, mechanic, electric, electronic or hydraulic systems for the frequency modulaton; however, the preferred use of a planet gear system should have cost-saving advantages compared with other solutions.
  • the internal gear need not necessarily be driven by a toothed wheel gear but other devices are possible with which the internal gear can be give an oscillating turn-' ing movement.
  • the pump can also be constructed differently and, for example, instead of a reciprocating'piston as described, may be a membrane type pump or a rotary piston type pump in which latter case the mechanism for transforming the rotary movement of the output shaft of a device according to the invention in a to-and-fro movement is no longer necessary.
  • Apparatus for medical care which comprises a pump unit, a' jet nozzle, and
  • said pump unit including means for supplying a stream of spaced liquid pressure pulses through said conduit to said nozzle which rise and fall between a low pressure and an approximately constant peak pressure, and means for cyclically varying the pulse recurrence frequency of said pressure pulses.
  • said pulse recurrence frequency has an intermediate frequency of 2,500-3,500 pulses per minute and varies cyclically at least :20 percent of said intermediate frequency at a cyclic rate between 2 percent and 25 percent of said intermediate frequency.
  • a said means for supplying a stream of spaced liquid pressure pulses includes a pump having a driven member, a driving motor having a shaft, and planet-gear mechanism for coupling said motor shaft with said pump driven member,
  • said planet-gear mechanism including a sun-wheel
  • said means for cyclically varying the pulse recurrence frequency includes means for oscillating said internal gear about the axis thereof at a frequency substantially lower than the pulse recurrence frequency.
  • said means, for oscillating said internal gear includes a gear driven by said motor shaft and having an eccentric pin mounted thereon. and a radially disposed slot on said internal gear engaged by said eccentric pin.
  • said means for oscillating said internal gear includes a gear driven by said motor shaft and having an eccentric pin mounted thereon, an eccentric pin mounted on said internal gear, and a bifurcated member pivotally mounted for-oscillation about a fixed axis spaced from the axis of said internal gear, said eccentric pins engaging the bifurcation of said bifurcated member between said fixed axis and the axis of said internal gear.
  • said means for oscillating said internal gear includes a gear driven by said motorshaft and having an eccentric pin mounted thereon, and a connecting rod pivotally connected at one end thereof to said eccentric pin and at the other end thereof to said internal gear at a point spaced from the axis of the internal-gear.
  • said pump is a reciprocating piston pump driven by a piston rod, and including a slotted member fixed with said piston rod with the slot thereof extending transverse to the rod, said other of the sun-wheel and planet-wheel carrier having an eccentric pin attached thereto, said eccentric pin engaging said slotted member for reciprocating the piston rod.
  • the method of cleaning the teeth and massaging the gums which comprises forming a pulsating jet of spaced liquid pressure pulses which rise and fall between a low pressure and an approximately constant peak pressure and in which the pulse recurrence frequency of said pressure pulses cyclically varies, and directing said pulsating iet against the surfaces to be treated.
  • said pulse recurrence frequency has an intermediate frequency of 2,500-3,500 pulses per minute and varies cyclically at least :20 percent of said intermediate frequency at a cyclic rate between 2 percent and 25 .percent of said intermediate frequency.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Retarders (AREA)
  • Brushes (AREA)
  • Massaging Devices (AREA)
  • Reciprocating Pumps (AREA)
US00323742A 1969-12-24 1973-01-15 Device for operating a pump so as to produce therefrom a pulsating jet of liquid Expired - Lifetime US3811432A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1930269A CH519907A (fr) 1969-12-24 1969-12-24 Appareil à hygiène buccale

Publications (1)

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US3811432A true US3811432A (en) 1974-05-21

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US00323742A Expired - Lifetime US3811432A (en) 1969-12-24 1973-01-15 Device for operating a pump so as to produce therefrom a pulsating jet of liquid

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US (1) US3811432A (fr)
JP (1) JPS5018319B1 (fr)
CH (1) CH519907A (fr)
DE (1) DE2058728C3 (fr)
FR (1) FR2074154A5 (fr)
NL (1) NL161355C (fr)

Cited By (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108167A (en) * 1977-01-31 1978-08-22 Teledyne Industries, Inc. Dental syringe
GB2262890A (en) * 1992-01-03 1993-07-07 Bridge House Lab Limited Periodontal irrigation equipment
GB2310143A (en) * 1996-02-15 1997-08-20 Bristol Myers Squibb Co Lavage instrument
USD397788S (en) 1996-08-21 1998-09-01 Bristol-Myers Squibb Company Irrigation and suction instrument
US20020094309A1 (en) * 2001-01-12 2002-07-18 Burris W. Alan Ozone irrigator
US20080308177A1 (en) * 2007-06-15 2008-12-18 Thuot Raechell M Hand-held vacuum pump
US7967509B2 (en) 2007-06-15 2011-06-28 S.C. Johnson & Son, Inc. Pouch with a valve
US20140227659A1 (en) * 2006-07-07 2014-08-14 Water Pik, Inc. Oral irrigator with variable pressure
WO2014160051A3 (fr) * 2013-03-14 2014-11-20 Water Pik, Inc. Irrigateur oral à mode de massage
USD731640S1 (en) 2013-03-14 2015-06-09 Water Pik, Inc. Reservoir for a water flosser
US9061096B2 (en) 2009-12-16 2015-06-23 Water Pik, Inc. Powered irrigator for sinus cavity rinse
USD740936S1 (en) 2013-03-14 2015-10-13 Water Pik, Inc. Water flosser base unit
USD754330S1 (en) 2013-03-14 2016-04-19 Water Pik, Inc. Handle for a water flosser
USD756122S1 (en) 2009-01-28 2016-05-17 Water Pik, Inc. Oral irrigator tip
USD772397S1 (en) 2014-12-01 2016-11-22 Water Pik, Inc. Oral irrigator with a charging device
USD772396S1 (en) 2014-12-01 2016-11-22 Water Pik, Inc. Handheld oral irrigator
USD780908S1 (en) 2015-11-03 2017-03-07 Water Pik, Inc. Handheld oral irrigator
USD782656S1 (en) 2016-01-25 2017-03-28 Water Pik, Inc. Oral irrigator
USD782657S1 (en) 2016-03-02 2017-03-28 Water Pik, Inc. Oral irrigator handle
USD783809S1 (en) 2016-01-25 2017-04-11 Water Pik, Inc. Oral irrigator handle
USD783810S1 (en) 2016-02-22 2017-04-11 Water Pik, Inc. Handle for an oral irrigator
USD786422S1 (en) 2016-01-25 2017-05-09 Water Pik, Inc. Oral irrigator
USD788907S1 (en) 2013-03-14 2017-06-06 Water Pik, Inc. Water flosser base unit with reservoir lid
USD794773S1 (en) 2016-07-19 2017-08-15 Water Pik, Inc. Oral irrigator
USD796028S1 (en) 2016-07-19 2017-08-29 Water Pik, Inc. Oral irrigator
USD802119S1 (en) 2016-03-02 2017-11-07 Water Pik, Inc. Oral irrigator
USD802120S1 (en) 2007-02-27 2017-11-07 Water Pik, Inc. Tip for oral irrigator
USD802747S1 (en) 2016-07-19 2017-11-14 Water Pik, Inc. Reservoir for oral irrigator
USD804018S1 (en) 2016-07-19 2017-11-28 Water Pik, Inc. Base for an oral irrigator
USD804016S1 (en) 2016-02-05 2017-11-28 Water Pik, Inc. Handheld oral irrigator
USD807822S1 (en) 2016-07-19 2018-01-16 Water Pik, Inc. Power supply cartridge
USD809651S1 (en) 2016-07-19 2018-02-06 Water Pik, Inc. Combination base and reservoir for an oral irrigator
USD809650S1 (en) 2016-02-22 2018-02-06 Water Pik, Inc. Oral irrigator
US9980794B2 (en) 2002-12-31 2018-05-29 Water Pik, Inc. Irrigating device with variable pressure pulse
US9980793B2 (en) 2013-11-27 2018-05-29 Water Pik, Inc. Oral hygiene system
US9987109B2 (en) 2013-03-15 2018-06-05 Water Pik, Inc. Mechanically-driven, sonic toothbrush and water flosser
USD819956S1 (en) 2016-01-25 2018-06-12 Water Pik, Inc. Kit bag
USD822196S1 (en) 2016-01-14 2018-07-03 Water Pik, Inc. Oral irrigator
US10010389B2 (en) 2006-02-24 2018-07-03 Water Pik, Inc. Dental water jet device
USD822826S1 (en) 2016-12-15 2018-07-10 Water Pik, Inc. Oral irrigator base
USD822825S1 (en) 2016-12-15 2018-07-10 Water Pik, Inc. Oral irrigator unit
US10016254B2 (en) 2013-12-20 2018-07-10 Water Pik, Inc. Dental water jet
US10022207B2 (en) 2013-11-27 2018-07-17 Water Pik, Inc. Oral irrigator with slide pause switch
USD825741S1 (en) 2016-12-15 2018-08-14 Water Pik, Inc. Oral irrigator handle
USD829886S1 (en) 2016-12-15 2018-10-02 Water Pik, Inc. Oral irrigator base
USD829887S1 (en) 2017-02-06 2018-10-02 Water Pik, Inc. Oral irrigator reservoir
US10105201B2 (en) 2012-10-11 2018-10-23 Water Pik, Inc. Interdental cleaner using water supply
USD832420S1 (en) 2016-12-15 2018-10-30 Water Pik, Inc. Oral irrigator base
USD832418S1 (en) 2016-12-15 2018-10-30 Water Pik, Inc. Oral irrigator base
USD832419S1 (en) 2016-12-15 2018-10-30 Water Pik, Inc. Oral irrigator unit
USD833000S1 (en) 2016-12-15 2018-11-06 Water Pik, Inc. Oral irrigator unit
USD833601S1 (en) 2017-02-06 2018-11-13 Water Pik, Inc. Oral irrigator
USD833602S1 (en) 2017-02-06 2018-11-13 Water Pik, Inc. Oral irrigator base
USD833600S1 (en) 2016-12-15 2018-11-13 Water Pik, Inc. Oral irrigator reservoir
USD834180S1 (en) 2016-12-15 2018-11-20 Water Pik, Inc. Oral irrigator base
USD839409S1 (en) 2016-12-15 2019-01-29 Water Pik, Inc. Oral irrigator unit
USD840023S1 (en) 2016-12-15 2019-02-05 Water Pik, Inc. Oral irrigator reservoir
USD840022S1 (en) 2016-12-15 2019-02-05 Water Pik, Inc. Oral irrigator handle
US10258442B2 (en) 2009-03-20 2019-04-16 Water Pik, Inc. Oral irrigator appliance with radiant energy delivery for bactericidal effect
USD867579S1 (en) 2016-12-15 2019-11-19 Water Pik, Inc. Oral irrigator unit
USD868243S1 (en) 2018-03-16 2019-11-26 Water Pik, Inc. Oral irrigator tip
USD877324S1 (en) 2018-05-17 2020-03-03 Water Pik, Inc. Oral irrigator handle
USD888936S1 (en) 2019-02-22 2020-06-30 Water Pik, Inc. Cordless water flosser
USD889636S1 (en) 2019-02-22 2020-07-07 Water Pik, Inc. Water flosser
US10779922B2 (en) 2016-12-15 2020-09-22 Water Pik, Inc. Pause valve and swivel assemblies for oral irrigator handle
US10835356B2 (en) 2016-01-25 2020-11-17 Water Pik, Inc. Swivel assembly for oral irrigator handle
US10993867B2 (en) 2016-03-02 2021-05-04 Water Pik, Inc. Actuation assembly for an oral irrigator
US11213376B2 (en) 2016-01-25 2022-01-04 Water Pik, Inc. Reduced form factor oral irrigator
US11389279B2 (en) 2016-12-15 2022-07-19 Water Pik, Inc. Oral irrigator with magnetic attachment
USD966498S1 (en) 2020-09-15 2022-10-11 Water Pik, Inc. Oral irrigator
US11826214B2 (en) 2014-12-01 2023-11-28 Water Pik, Inc. Oral irrigator
USD1016274S1 (en) 2021-02-16 2024-02-27 Water Pik, Inc. Oral irrigator

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DE3201491A1 (de) * 1982-01-20 1983-09-08 Braun Ag Vorrichtung zum pflegen und reinigen der zaehne und des zahnfleisches

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Patent Citations (4)

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US3227158A (en) * 1961-05-08 1966-01-04 Aquatec Corp Method and apparatus for oral hygiene
US3401690A (en) * 1966-04-20 1968-09-17 Leonard G. Martin Ultrasonic dental cleaning and treatment device
US3547110A (en) * 1968-04-18 1970-12-15 Ultrasonic Systems Method and apparatus for maintaining tooth and gingival structures with ultrasonic energy

Cited By (121)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108167A (en) * 1977-01-31 1978-08-22 Teledyne Industries, Inc. Dental syringe
GB2262890A (en) * 1992-01-03 1993-07-07 Bridge House Lab Limited Periodontal irrigation equipment
GB2262890B (en) * 1992-01-03 1995-07-12 Bridge House Lab Limited Improvements relating to equipment for periodontal irrigation
US5882319A (en) * 1996-02-15 1999-03-16 Bristol-Myers Squibb Company Lavage instrument
GB2310143A (en) * 1996-02-15 1997-08-20 Bristol Myers Squibb Co Lavage instrument
USD397788S (en) 1996-08-21 1998-09-01 Bristol-Myers Squibb Company Irrigation and suction instrument
US7244354B2 (en) 2001-01-12 2007-07-17 Alab, Llc Ozone irrigator
US20020094309A1 (en) * 2001-01-12 2002-07-18 Burris W. Alan Ozone irrigator
US10617500B2 (en) 2002-12-31 2020-04-14 Water Pik, Inc. Oral irrigator
US9980794B2 (en) 2002-12-31 2018-05-29 Water Pik, Inc. Irrigating device with variable pressure pulse
US11197745B2 (en) 2006-02-24 2021-12-14 Water Pik, Inc. Removable fluid connection fitting for oral irrigator
US10010389B2 (en) 2006-02-24 2018-07-03 Water Pik, Inc. Dental water jet device
US11432916B2 (en) 2006-02-24 2022-09-06 Water Pik, Inc. Oral irrigator with handle support
US11872097B2 (en) 2006-02-24 2024-01-16 Water Pik, Inc. Dental water jet with storage container reservoir cover
US20140227659A1 (en) * 2006-07-07 2014-08-14 Water Pik, Inc. Oral irrigator with variable pressure
US9775692B2 (en) * 2006-07-07 2017-10-03 Water Pik, Inc. Oral irrigator with variable pressure
USD747464S1 (en) 2006-07-07 2016-01-12 Water Pik, Inc. Handheld oral irrigator
USD802120S1 (en) 2007-02-27 2017-11-07 Water Pik, Inc. Tip for oral irrigator
USD867580S1 (en) 2007-02-27 2019-11-19 Water Pik, Inc. Oral irrigator tip with bristles
US7967509B2 (en) 2007-06-15 2011-06-28 S.C. Johnson & Son, Inc. Pouch with a valve
US20080308177A1 (en) * 2007-06-15 2008-12-18 Thuot Raechell M Hand-held vacuum pump
US8096329B2 (en) 2007-06-15 2012-01-17 S. C. Johnson & Son, Inc. Hand-held vacuum pump
USD756122S1 (en) 2009-01-28 2016-05-17 Water Pik, Inc. Oral irrigator tip
US10258442B2 (en) 2009-03-20 2019-04-16 Water Pik, Inc. Oral irrigator appliance with radiant energy delivery for bactericidal effect
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Also Published As

Publication number Publication date
NL161355B (nl) 1979-09-17
DE2058728B2 (de) 1977-10-13
DE2058728A1 (de) 1971-07-08
JPS5018319B1 (fr) 1975-06-27
CH519907A (fr) 1972-03-15
FR2074154A5 (fr) 1971-10-01
NL7018612A (fr) 1971-06-28
NL161355C (nl) 1980-02-15
DE2058728C3 (de) 1978-06-08

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