WO1993019694A1 - Saugschlauchanschlussvorrichtung für zahnärztliche absauganlagen - Google Patents
Saugschlauchanschlussvorrichtung für zahnärztliche absauganlagen Download PDFInfo
- Publication number
- WO1993019694A1 WO1993019694A1 PCT/AT1993/000056 AT9300056W WO9319694A1 WO 1993019694 A1 WO1993019694 A1 WO 1993019694A1 AT 9300056 W AT9300056 W AT 9300056W WO 9319694 A1 WO9319694 A1 WO 9319694A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- suction hose
- connection device
- hose connection
- suction
- pipe
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Classifications
-
- 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
- A61C17/14—Dental appliances for receiving spittle, with or without rinsing means therefor, e.g. dental basins, spittoons, cuspidors
Definitions
- the invention relates to a suction hose connection device for dental suction systems, with an inlet pipe that can be connected to the suction hose, with an outlet pipe that can be connected with the suction system, and with a removable sieve insert located in the flow path between the inlet pipe and the outlet pipe.
- Such a device can be found, for example, in EP-A 390 951. It contains a housing with a cylindrical interior into which the inlet pipe opens at the circumference and, offset at 90 ° on the circumference, branches off the outlet pipe upwards.
- the screen insert is removed or attached at the end and has a flat screen located between the inlet tube and the outlet tube, which is connected via a curved wall piece and a trough located under the mouth of the inlet tube.
- the sieve serves to retain coarse solid particles from the substances conveyed through the suction hose.
- the inlet pipe comprises an angle piece which is rotatably mounted in the housing and to which the suction hose is connected.
- a flow controller is rotatably inserted in the outlet pipe and has two disks which are connected via a web which extends over less than half of the circumference.
- a disadvantage of the connection device lies in the small sieve surface, which is essentially perpendicular to the flow and is relatively easy to lay, so that it must be frequently emptied and cleaned.
- the invention has now set itself the task of significantly increasing the screen area in a suction hose connection device of the type mentioned and avoiding clogging of the screen as much as possible.
- the connecting device has an upper part in which the inlet pipe and the outlet pipe are arranged in a flow-separated manner, and a removable part.
- the inlet pipe and the outlet pipe has flow-connecting lower part in which the sieve insert is arranged.
- a preferred embodiment that takes up minimal assembly space provides for the upper part to have connecting recesses and for rigid tongues to be inserted into the recesses and snap-in resilient tongues to be inserted into the lower part. If there is sufficient space, the lower part can be arranged in a drawer-like manner in a second embodiment.
- a clamp lock is preferably provided to fix the lower part.
- the tensioning bracket can simultaneously serve as a handle for the lower part if it is pivotably mounted on the lower part and engages behind the retaining tabs of the upper part.
- the clamping bracket can also be articulated on the upper part.
- a very large sieve area is obtained if the sieve insert is cup-shaped. In this way it can be adapted to the lower part and taper conically downwards.
- a maximum sieve area is obtained if a side wall designed as a sieve extends between the inflow and outflow mouth and is aligned with the outflow opening, that is to say represents an extension of the outlet pipe.
- the side wall has rods extending from top to bottom, between which slots are provided which widen downwards and outwards. Clogging of such slots by fine solid parts is practically impossible because they are carried along along the widening slots until they can pass through them.
- the sieve insert should only hold back coarse parts that collect on the preferably closed bottom.
- a further preferred embodiment provides that a second inlet pipe is provided in the upper part for connecting a further suction hose.
- the connection device is only required once in a work station which is usually equipped with two suction hoses of different diameters.
- At least one elbow preferably contains a shut-off device, which in particular has a diaphragm running obliquely to both pipe sections of the elbow, in the pressure surface of which both pipe sections open.
- a flow regulator is arranged in a knee of the outlet pipe.
- the flow regulator can be designed in various ways, for example by an adjusting screw
- Throttle valve etc.
- the flow regulator is formed by a stopper which is adjustably mounted in a branch of the knee and whose inner end face is flush with the wall of the knee in one position. When the plug is moved, the cross-section of the knee changes. The adjustment does not require any additional space if the stopper is rotatable about an axis that is parallel to the axis of the outlet pipe.
- FIG. 1 shows a side view of an exploded view of the connecting device according to the invention
- FIG. 2 shows a bottom view of the upper part
- FIG. 3 shows a top view of the lower part with a sieve insert
- FIG. 4 shows a side view of a slightly modified second embodiment.
- a connection device for two suction hoses of a dental work station has an upper part 1 which can be connected to the suction unit and in which two inlet pipes 2 and one outlet pipe 3 are combined.
- the two inlet pipes 2 are provided opposite one another on the same axis and each lead downwards via a curved piece 17, where they have inflow openings 5 lying next to one another in an inclined seating surface 4 of the lower wall of the upper part.
- the outlet pipe 3 has a knee 26, which extends from a drain opening 6 also located in the inclined sieve surface 4, and lies between the two elbows 17 of the inlet pipes 2.
- the upper part thus represents an extremely compact component.
- the end of the Outlet pipe 3 can be continued in any manner straight or bent upwards or downwards.
- side cheeks 7 are provided, which, for receiving the lower part 18, have support webs 9 pointing towards one another and retaining tabs 8 projecting outwards. 4 is at the bottom for fastening the lower part 18
- a web 29 is provided on the edge of the inclined seat surface 4. Recesses are provided both in the web 29 and in the lower wall of the upper part 29 having the inclined seat surface 4, into which rigid tabs 27 and resilient latching tongues 28 of the lower part are inserted. In the knee 26 of the
- a flow rate controller 24 is provided. This consists of a cylindrical plug, which is in a branch of the knee 26 is rotatably mounted and has an inner, curved end face 25. The curvature
- FIGS. 1 and 2 corresponds to the inner surface of the knee 26 which is missing due to the branching, so that the stopper is flush with the inner surface of the knee in one of its positions. In any other position, the stopper projects into the knee 26 and reduces its cross section.
- elbows are used, which are rotatable about the common axis 10. For reasons of space, however, only one is shown in FIGS. 1 and 2.
- the suction hoses are connected to the elbows and can thus be pivoted about the axis 10, so that the suction hose can only better absorb the constant stresses resulting from the movement of the hose.
- the normal position is shown in Fig. 1, in which the pipe section 31, to which the suction hose is connected, extends downward.
- Each angle piece contains a shut-off device 30, the two pipe sections 31 of the angle piece opening into a corner chamber 33, in which a membrane 32 is arranged.
- the openings of the two pipe sections 31 are in this way in the contact surface of the membrane 32, the pressure conditions on the other side of the membrane 32 being changed for their actuation.
- the diaphragms 32 Due to the negative pressure of the suction system, the diaphragms 32 are in the closed position shown schematically when normal pressure prevails in the chamber 33.
- the chamber 33 is placed under negative pressure, so that the membrane 32 lifts off the openings of the pipe sections 31.
- the lower part 18 of the connecting device is designed as a container and, according to FIGS. 1 and 2, has two side webs 19 which run parallel to the side cheeks 7. As shown in FIG. 1, the lower part 18 can be pulled out and pushed in like a drawer, the side webs 19 being gripped and guided by the support webs 9.
- two bearing pins 20 are provided on which the side arms 22 of a clamping bracket are mounted. These have recesses 23 so that the side arms 22 engage behind the retaining tabs 8. The different curvatures of the retaining tabs 8 and the boundaries of the recesses 23 cause one
- Tractive force in the direction of insertion so that the inclined surface 21 of the upper edge of the lower part is pressed sealingly against the inclined seat surface 4 of the upper part.
- the resilient tongues 28 extend vertically upwards and releasably engage recesses in the lower, laterally projecting wall of the upper part 1.
- a sieve insert 11 is arranged, which is approximately conical cup-shaped. It has side walls 13 which form sieve surfaces through downwardly extending rods 14 and slots 16, the slots 16 widening downwards and outwards to avoid blockages.
- the rods 14 can also taper downwards.
- Three side walls 13 are flat and the fourth side wall is curved, the curved side wall 13 surrounding a drain pipe part 12, which is flush with the drain opening 6 in the inclined seat surface 4, is bevelled accordingly at the top, and thereby the outlet pipe 3 to close extended to the bottom of the lower part 18. Since the suction flow runs from top to bottom, fine particles that can lay the slits are taken down until they pass through them.
- the pot-shaped lower part is therefore almost always vacuumed empty and contains no water. This is particularly important when removing the lower part to remove the sieve insert. Due to the curved side wall 13, the screen insert 11 is given an axial capacity and a maximum screen area. The bottom 15 of the sieve insert 11 is closed.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP93906363A EP0680288A1 (de) | 1992-04-02 | 1993-03-30 | Saugschlauchanschlussvorrichtung für zahnärztliche absauganlagen |
| JP5516887A JPH07506019A (ja) | 1992-04-02 | 1993-03-30 | 歯科用吸引器のための吸引チューブ接続装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT67592 | 1992-04-02 | ||
| ATA675/92 | 1992-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1993019694A1 true WO1993019694A1 (de) | 1993-10-14 |
Family
ID=3496870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/AT1993/000056 Ceased WO1993019694A1 (de) | 1992-04-02 | 1993-03-30 | Saugschlauchanschlussvorrichtung für zahnärztliche absauganlagen |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0680288A1 (de) |
| JP (1) | JPH07506019A (de) |
| AU (1) | AU3738693A (de) |
| CA (1) | CA2132633A1 (de) |
| WO (1) | WO1993019694A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107334554A (zh) * | 2017-08-30 | 2017-11-10 | 薛海丽 | 临床用清洁口腔器具 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2410996A1 (fr) * | 1977-03-25 | 1979-07-06 | Duerr Dental Kg | Dispositif pour filtrer destine a etre utilise dans une installation d'aspiration dentaire |
| US4385891A (en) * | 1981-04-09 | 1983-05-31 | Ligotti Eugene F | Dental apparatus for preventing loss of precious metal particles |
| WO1983002720A1 (en) * | 1982-02-05 | 1983-08-18 | Hans Horn-Lassen | A device for separating waste products from a flow of liquid and gas |
| AT382508B (de) * | 1985-09-12 | 1987-03-10 | Chirana Zavody Zdravotnicke | Zahnaerztliche auffangvorrichtung fuer edelmetalle |
| EP0355467A1 (de) * | 1988-08-10 | 1990-02-28 | Siemens Aktiengesellschaft | Zahnärztliche Absaugeinrichtung mit Mitteln zur Saugkraftsteuerung |
| EP0390951A1 (de) * | 1989-04-06 | 1990-10-10 | Siemens Aktiengesellschaft | Zahnärztliches Saughandstück |
-
1993
- 1993-03-30 JP JP5516887A patent/JPH07506019A/ja active Pending
- 1993-03-30 AU AU37386/93A patent/AU3738693A/en not_active Abandoned
- 1993-03-30 WO PCT/AT1993/000056 patent/WO1993019694A1/de not_active Ceased
- 1993-03-30 CA CA002132633A patent/CA2132633A1/en not_active Abandoned
- 1993-03-30 EP EP93906363A patent/EP0680288A1/de not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2410996A1 (fr) * | 1977-03-25 | 1979-07-06 | Duerr Dental Kg | Dispositif pour filtrer destine a etre utilise dans une installation d'aspiration dentaire |
| US4385891A (en) * | 1981-04-09 | 1983-05-31 | Ligotti Eugene F | Dental apparatus for preventing loss of precious metal particles |
| WO1983002720A1 (en) * | 1982-02-05 | 1983-08-18 | Hans Horn-Lassen | A device for separating waste products from a flow of liquid and gas |
| AT382508B (de) * | 1985-09-12 | 1987-03-10 | Chirana Zavody Zdravotnicke | Zahnaerztliche auffangvorrichtung fuer edelmetalle |
| EP0355467A1 (de) * | 1988-08-10 | 1990-02-28 | Siemens Aktiengesellschaft | Zahnärztliche Absaugeinrichtung mit Mitteln zur Saugkraftsteuerung |
| EP0390951A1 (de) * | 1989-04-06 | 1990-10-10 | Siemens Aktiengesellschaft | Zahnärztliches Saughandstück |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07506019A (ja) | 1995-07-06 |
| AU3738693A (en) | 1993-11-08 |
| CA2132633A1 (en) | 1993-10-03 |
| EP0680288A1 (de) | 1995-11-08 |
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