WO1995003751A1 - Dispositif d'obturation d'un systeme dentaire d'aspiration pourvu d'un canal d'aspiration - Google Patents

Dispositif d'obturation d'un systeme dentaire d'aspiration pourvu d'un canal d'aspiration Download PDF

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Publication number
WO1995003751A1
WO1995003751A1 PCT/AT1994/000097 AT9400097W WO9503751A1 WO 1995003751 A1 WO1995003751 A1 WO 1995003751A1 AT 9400097 W AT9400097 W AT 9400097W WO 9503751 A1 WO9503751 A1 WO 9503751A1
Authority
WO
WIPO (PCT)
Prior art keywords
shut
suction
channel
suction channel
pipe section
Prior art date
Application number
PCT/AT1994/000097
Other languages
German (de)
English (en)
Inventor
Werner Trawöger
Bruno Pregenzer
Original Assignee
Trawoeger Werner
Bruno Pregenzer
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trawoeger Werner, Bruno Pregenzer filed Critical Trawoeger Werner
Priority to AU72219/94A priority Critical patent/AU7221994A/en
Publication of WO1995003751A1 publication Critical patent/WO1995003751A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/022—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising a deformable member
    • 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
    • A61C17/06—Saliva removers; Accessories therefor
    • A61C17/12—Control devices, e.g. for suction
    • A61C17/13—Control devices, e.g. for suction with manually operated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
    • F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure

Definitions

  • the invention relates to a shut-off device for a suction suction system, in particular a dental suction device, with a working space for a working medium and with a locking mechanism moved by the working medium.
  • shut-off device can be found, for example, in DE-U 92 04 544 or EP-A-505 600 and 505 885.
  • the locking mechanism in each case comprises a membrane as a locking element which is lifted from the valve seat by the negative pressure of the working medium, so that the suction channel is opened.
  • the two EP-A control valves are additionally integrated in the shut-off device.
  • WO-A 90/01909 describes a method for introducing a cleaning, disinfecting and / or foam-preventing additive into the mixture sucked in through the suction channel, the additive being able to be added at intervals in the mouthpiece via a suction pressure-controlled metering device.
  • a disinfection system working according to the Venturi principle is described in WO-A 91/03214.
  • additive is sucked into a container via a T-piece of the possibly non-kickback-protected suction line.
  • the inflow line contains a control for dosing the correct amount.
  • a shut-off device now provides that the locking mechanism on the one hand feeds the suction channel and on the other hand an additive into the suction channel send feed channel is assigned.
  • the shut-off devices for both channels are thus combined in a single shut-off device, so that there is a compact construction and less space requirement, which can be easily adapted to the desired conditions.
  • the two channels can be opened or closed simultaneously or alternately if the locking mechanism is designed accordingly.
  • the additive is to be added to the suction channel during suction operation, this is done by simultaneously opening and shutting off both channels. This can be done by means of a single locking element if all pipe sections are on one side of the movable locking element.
  • the locking mechanism has a locking element for each of the two channels, in particular each locking element being formed by a membrane.
  • a favorable spatial division results if the blocking elements are opposite one another and thus limit the working space on two sides.
  • a partition wall that is permeable to the working medium is provided between the two membranes in the working space.
  • the shut-off device has one inlet and one outlet pipe section for each channel, the outlet pipe section of the additive channel opening into the inlet section of the suction channel.
  • the opening of the additive duct into the suction duct can be provided, for example, immediately after the locking mechanism; for the use of the shut-off device in the method described in WO-A 90/01909, it lies in the mouthpiece, in particular in the insertion sleeve of the suction cannula.
  • the suction channel comprises a suction hose and a supply hose as described, for example, in DE-Gbm 92 04 542, the shut-off device having a stepped hose coupling element, on which a circumferential groove is provided, into which the outlet pipe section of the additive channel opens.
  • the coupling piece provided on the suction hose is also provided with a circumferential groove from which a feed hose starts and the sealing is carried out by means of two seals.
  • An embodiment which is particularly advantageous for this use also provides that the shut-off device is provided on a pipe elbow for the rotatable connection of the suction hose to a connection block e-.ier hose storage unit.
  • FIG. 1 shows a section through a shut-off device and FIG. 2 shows the assignment of the shut-off device to a connection block of a dental treatment unit.
  • a shut-off device has a housing 1 in which three functional parts are provided.
  • the first functional part comprises a suction channel and has a base body 16 with an inlet pipe section 2 and an outlet pipe section 3, the axes of the two pipe sections 2, 3 running at an angle to one another.
  • a connecting piece 17 adjoins the outlet pipe section 3 at approximately a right angle, which in particular can be rotatably connected to a connecting block 19 of a dental hose storage unit.
  • FIG. 3 shows, two connection pieces 17 lying opposite one another are preferably formed, as a result of which these are joined together are arranged in a T-shape with the output pipe section 3.
  • shut-off device can be plugged into the connection block 19 on both sides, or more than one shut-off device can be provided on each side, as indicated by the broken line in FIG. 3.
  • the connection piece 17 which is not required in each case is closed by a plug, not shown.
  • the second functional part of the housing 1 contains a working space 7 for a working medium, the working space 7 inside a central body 15, a first membrane 8 clamped between the basic body 16 and the central body 15 along its circumference, and one between the central body 15 and a deck - Body 14 held second membrane 9 is.
  • the working medium for example air, enters or leaves the working space 7 via a connecting piece 13.
  • the housing 1 comprises, as a third functional part, a feed channel for an additive to be fed into the suction channel and has an inlet pipe section 5 in the cover body 14 and, together with the middle body 15, an outlet pipe section 6.
  • the inlet pipe section 5 of the second channel opens out in relation to the second membrane 9, which is provided with a closure body 10 made of elastic material, for example a rubber or silicone plug, assigned to the opening of the inlet pipe section 5.
  • a partition 11 dividing the working space 7 but provided with holes 12 avoids direct contact and possible malfunctions of the two membranes 8, 9.
  • the outlet pipe section 6 of the additive middle channel continues through the middle body 15 into the base body 16 and opens within a gradation of the inlet pipe section 2 of the suction channel.
  • a plug 20 of a suction hose 23 is inserted into the stepped inlet pipe section 2 of the suction channel.
  • the plug pin 20 has a circumferential groove 21 between two O-rings, into which a passage 22 opens to a receptacle for the suction hose 23, on the wall of which a supply hose 24 is provided which is aligned with the passage 22.
  • the arrangement is such that the outlet tube section 6 opens into the circumferential groove 21 when the plug-in pins 20 are attached.
  • a mouthpiece is arranged in the usual way, which is hooked into the hose storage unit and in which the additive is transferred into the suction channel.
  • the first membrane 8 is shown in FIG. 1 in its closed position, in which it is attached to a narrow sealing web 18 of the
  • Base body 16 rests in the transition region of the two pipe sections 2, 3, and which simultaneously represents the pretensioned rest position. Normal pressure prevails in the working space 7, so that the suction channel is closed by the first membrane 8. Is the suction system in
  • the sealing effect of the membrane in its rest position is further increased by the negative pressure in the outlet pipe section 3 of the suction channel.
  • the second membrane which is also biased in its closed position shown, blocks the additive channel, so that no additive gets into the supply hose 24.
  • both membranes 8, 9 are moved towards one another from their closed positions.
  • Both channels open simultaneously, so that material to be removed can be sucked out of the patient's mouth, for example, and an additive, for example a disinfectant, can be added via the additive channel and the supply hose 24 in the area of the mouthpiece Antifoam or the like. can be added to the material to be extracted.
  • Both channels are closed again as soon as the negative pressure in the working space 7 is again lower than in the channels, or the membranes 8, 9 have returned to the rest positions due to their pretensioning with the suction system switched off.
  • the introduction of the additive into the suction channel can of course also take place elsewhere, so that a suction hose without a supply hose can also be connected to the inlet pipe section 2 of the suction channel, or the shut-off device is already provided on the receiving part of the mouthpiece.
  • the outlet pipe section 6 of the additive channel can open directly into the inlet pipe section 2 of the suction channel.
  • the additive channel can only have the inlet pipe section 5, which opens into the suction channel in the region of the sealing web.
  • a single membrane 8 simultaneously blocks both channels.
  • the additive channel or its mouth into the suction channel can also be arranged such that the two channels are alternately opened and closed by the locking mechanism.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Dentistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Un dispositif d'obturation pour un système dentaire d'aspiration pourvu d'un canal d'aspiration (2, 3) comprend un mécanisme d'obturation (8, 9) mû par un milieu de travail. Le mécanisme d'obturation (8, 9) est associé d'une part au canal d'aspiration (2, 3) et d'autre part à un canal d'amenée (5, 6) d'un milieu supplémentaire au canal d'aspiration (2, 3). De préférence, chaque canal est pourvu de sa propre membrane d'obturation (8, 9), les deux canaux (2, 3; 5, 6) étant fermés ou ouverts en même temps.
PCT/AT1994/000097 1993-07-27 1994-07-26 Dispositif d'obturation d'un systeme dentaire d'aspiration pourvu d'un canal d'aspiration WO1995003751A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU72219/94A AU7221994A (en) 1993-07-27 1994-07-26 Shutting-off arrangement for dental suction equipment provided with a suction channel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1493/93 1993-07-27
AT149393 1993-07-27

Publications (1)

Publication Number Publication Date
WO1995003751A1 true WO1995003751A1 (fr) 1995-02-09

Family

ID=3515081

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1994/000097 WO1995003751A1 (fr) 1993-07-27 1994-07-26 Dispositif d'obturation d'un systeme dentaire d'aspiration pourvu d'un canal d'aspiration

Country Status (2)

Country Link
AU (1) AU7221994A (fr)
WO (1) WO1995003751A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1490613A1 (fr) * 2002-03-18 2004-12-29 Entegris, Inc. Vanne a deversoir pouvant etre entierement videe
IT202100026171A1 (it) 2021-10-13 2023-04-13 Cefla Soc Cooperativa Valvola per impianti di aspirazione odontoiatrici

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036980A1 (fr) * 1980-03-27 1981-10-07 Helmut Dipl.-Ing. Michalka Soupape à plusieurs voies
EP0355467A1 (fr) * 1988-08-10 1990-02-28 Siemens Aktiengesellschaft Dispositif d'aspiration dentaire avec moyens pour le réglage de la capacité d'aspiration
EP0505600A1 (fr) * 1991-03-28 1992-09-30 Siemens Aktiengesellschaft Soupape
EP0505885A1 (fr) * 1991-03-28 1992-09-30 Siemens Aktiengesellschaft Soupape pour commander le débit d'une fluide coulant par pression negative

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036980A1 (fr) * 1980-03-27 1981-10-07 Helmut Dipl.-Ing. Michalka Soupape à plusieurs voies
EP0355467A1 (fr) * 1988-08-10 1990-02-28 Siemens Aktiengesellschaft Dispositif d'aspiration dentaire avec moyens pour le réglage de la capacité d'aspiration
EP0505600A1 (fr) * 1991-03-28 1992-09-30 Siemens Aktiengesellschaft Soupape
EP0505885A1 (fr) * 1991-03-28 1992-09-30 Siemens Aktiengesellschaft Soupape pour commander le débit d'une fluide coulant par pression negative

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1490613A1 (fr) * 2002-03-18 2004-12-29 Entegris, Inc. Vanne a deversoir pouvant etre entierement videe
EP1490613A4 (fr) * 2002-03-18 2005-09-07 Entegris Inc Vanne a deversoir pouvant etre entierement videe
IT202100026171A1 (it) 2021-10-13 2023-04-13 Cefla Soc Cooperativa Valvola per impianti di aspirazione odontoiatrici
EP4166110A1 (fr) 2021-10-13 2023-04-19 Cefla Societa' Cooperativa Soupape pour systèmes d'aspiration dentaire

Also Published As

Publication number Publication date
AU7221994A (en) 1995-02-28

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