US20150027561A1 - Suction Machine Comprising a Housing Made of Expanded Plastic Material - Google Patents

Suction Machine Comprising a Housing Made of Expanded Plastic Material Download PDF

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Publication number
US20150027561A1
US20150027561A1 US14/381,919 US201314381919A US2015027561A1 US 20150027561 A1 US20150027561 A1 US 20150027561A1 US 201314381919 A US201314381919 A US 201314381919A US 2015027561 A1 US2015027561 A1 US 2015027561A1
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US
United States
Prior art keywords
suction
housing
suction device
unit
housing shells
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.)
Abandoned
Application number
US14/381,919
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English (en)
Inventor
Ralf Mauthe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duerr Dental SE
Original Assignee
Duerr Dental SE
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 Duerr Dental SE filed Critical Duerr Dental SE
Publication of US20150027561A1 publication Critical patent/US20150027561A1/en
Abandoned legal-status Critical Current

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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
    • A61C17/06—Saliva removers; Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • 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
    • A61C17/065—Saliva removers; Accessories therefor characterised by provisions for processing the collected matter, e.g. for separating solids or air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/42—Reducing noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/7043—Guards and shields

Definitions

  • the present invention relates to a suction device for dental, medical or industrial purposes, comprising a suction system and a housing in which the suction system is accommodated.
  • suction devices or systems are commonly known and are offered for sale, for example by the Applicant, in the most diverse variants.
  • a suction device is known from publication DE 10 2006 058 955 A1.
  • suction systems of this kind serve, for example, to suck substances which are produced in the course of dental treatment, such as waste water, blood, saliva, dentine or various filling materials, out of the patient's oral cavity and, optionally, to separate and deposit them.
  • a suction system of this kind for dental purposes comprises a number of components such as, for example, a suction unit, a separating unit, a depositing unit, a control unit, etc., which have to be connected to one another to form a complete system.
  • suction systems of this kind have proved successful in practice, there remains an ongoing desire to configure suction systems or devices in a more compact manner, to simplify the composition and to reduce the noise emission.
  • the housing is composed of at least two housing shells that can be assembled and are manufactured from a foamable material, at least one of the housing shells has support surfaces that support and/or hold the components of the suction system in the housing, and at least one of the housing shells forms at least one functional component of the suction system.
  • the suction device now has a housing which not only simply surrounds the individual components of the suction device but, what is more, also provides additional functions, that is to say itself forms, in particular, functional components. Consequently, functional components are integrated into the housing which is formed from at least two housing shells that can be assembled.
  • the housing which is formed from at least two housing shells that can be assembled.
  • no fastening means, or only a few, such as screws, etc. are needed, since the individual components are accommodated and held in moulded formations that are constructed therein.
  • the suction system comprises at least one suction unit and/or at least one separating unit, which separates the sucked-off air from the liquid or solid substances, and/or a depositing unit which deposits, for example, amalgam.
  • the foamable material in question is a plastic material.
  • the housing shells are expanded from a plastic material.
  • a foamable plastic material of this kind is, for example, polypropylene. Obviously it is also possible to use, in addition to expandable plastic materials, natural materials such as maize foam for example.
  • the housing shells forms at least one functional component of the suction system.
  • the functional component in question may be, for example, an air-conducting duct, one or more supporting feet, a sound-insulating element, a vibration-decoupling element and/or a holding element for lines, connections, etc.
  • a component of the suction device may be, for example, an electrical connecting element, a hose-connecting element, a control unit housing, an electrical line or a cable guide for lines.
  • a control unit housing for example
  • Electrical lines or other lines can be routed into clearances of this kind in the housing shells in a simple and defined manner, so that, for example, contact with hot parts inside the housing cannot occur.
  • the components such as the control unit, fan unit, separating unit and/or driving unit for example, can be accommodated in the housing shells in a simple manner since, on the one hand, the positions for the individual components are predetermined in a fixed manner and, on the other hand, no other fastening means etc. are required since the components are held securely via the support surfaces when the housing shells are assembled.
  • FIG. 1 shows a suction device according to the invention, in a first perspective view
  • FIG. 2 shows the suction device according to the invention, in a second perspective view
  • FIGS. 3 a, b show the suction device according to the invention, in an exploded perspective representation
  • FIGS. 4 a, b show, in each case, an internal view of a housing shell of the suction device according to the invention, in a perspective representation;
  • FIGS. 5 a, b show the two housing shells with the individual components inserted, in a perspective representation
  • FIG. 6 shows a sectional view of a suction device according to the invention, for the purpose of explaining functional components
  • FIG. 7 shows another sectional view of the suction device according to the invention.
  • a suction system or suction device is shown in a perspective representation in FIG. 1 and is identified by the reference numeral 10 .
  • a suction device of this kind is used, for example, for dental purposes and serves to suck liquids such as saliva, blood, etc., and solid substances, such as, for example, plastic material, ceramics, amalgam, precious metals, etc., out of the oral cavity of a patient who is being treated. Under these circumstances, the suction device 10 is provided either in the immediate vicinity of the treatment chair or else remotely from the latter, for example in another area.
  • a suction device 10 of this kind may be designed for one or more treatment stations. Without such removal by suction, a cooling spray in the form of an aerosol cloud which is used by modern high-speed instruments would spread throughout the treatment room. The germs, bacteria and viruses contained in such an aerosol cloud would allow a risk of infection to arise, which is to be prevented.
  • the suction device 10 has various modules which are accommodated in a housing 12 .
  • This housing 12 consists of a number of housing shells 14 , 16 , preferably two.
  • the two housing shells 14 , 16 are capable of being assembled, which means, among other things, that those surfaces of the two housing shells which face towards one another are shaped so as to fit one another.
  • the overall result is a substantially closed housing 12 , which only possesses openings for feeding power, air and liquids in and out.
  • the two housing shells 14 , 16 are preferably produced from the same material, the latter preferably being a foamable plastic material.
  • a foamable plastic material of this kind is, for example, polypropylene.
  • foamable materials in particular natural materials, are also conceivably possible as the material for the housing.
  • the material for the housing 12 is selected, among other things, according to its damping capacity as regards sound and vibrations.
  • the housing 12 On one of its sides 22 , the housing 12 , which is preferably parallelepipedal, possesses three circular openings 18 in which connecting elements, for example for hose lines or pipelines, are inserted.
  • the connecting elements which are identified by the reference numeral 20 , may have connecting surfaces, for example threads, on the periphery, so that hose lines can be connected in a simple manner.
  • the opening 18 on the right in FIG. 1 is intended for blowing out waste air, the opening 18 for conducting away secretion that has been deposited, and the opening 18 on the left for sucking in air and secretion from a patient's oral cavity.
  • a further slit-like opening 23 which likewise serves for blowing out air, is provided in the upper region of this side 22 .
  • the housing 12 is assembled from the two housing shells 14 , 16 , the line of separation between said two housing shells being identified by the reference numeral 24 .
  • the three circular openings 18 are intersected by this line of separation 24 on the side 22 , which means that these openings 18 in the housing 12 are formed by circular segment-shaped clearances, which are open at the rim, in the two housing shells.
  • openings 28 On the lower side, which forms the base 26 , of the lower housing shell 16 , there are likewise provided openings 28 which provide a connection to the interior space of the housing 12 . These openings 28 , too, can be used for the purpose of sucking in or blowing out air.
  • these supporting feet 30 are moulded in conjunction with the housing shell when it is manufactured, and consequently do not have to be connected to the base in any way, for example by bonding or screwing.
  • This opening 38 is of slit-like construction in order to prevent the possibility of foreign bodies getting into the interior of the housing 12 .
  • an electronics housing 40 the externally located cover plate 41 of which is approximately L-shaped and extends from the lid side onto the side 22 .
  • This electronics housing 40 contains the constituent parts required for control and power supply purposes and is supplied from outside via a mains plug which can be plugged into the mains socket that can be seen.
  • the cover plate 41 terminates on the side 22 in the region of the opening 23 and is constructed in such a way that air is able to flow to the outside from the housing 12 through the opening 23 .
  • the housing 12 is represented in the open position in FIGS. 3 a and 3 b, so that the internals of said housing 12 are visible.
  • a suction system which is identified, in general, by the reference numeral 50 .
  • This suction system 50 may have a number of modules, namely, in particular, a suction unit 54 or suction machine 54 , for example a separating unit 52 , which is preferably constructed as a radial suction machine 55 , and in addition, for example, a depositing unit for depositing amalgam or other accessories. Since the composition of a suction system of this kind is commonly known, it will not be gone into any further. At this point, it should also be observed that the suction system 50 may also comprise a number of the abovementioned individual modules, that is to say, for example, two or more suction machines.
  • the two housing shells 14 , 16 have, on the sides 44 and 46 that face towards one another, clearances which are adapted to said suction system 50 , so that, as emerges from FIG. 3 b, the individual modules of the suction system 50 can be simply inserted in the lower housing shell 16 , and are then held securely in the housing 12 by putting on the upper housing shell 14 . Consequently, no metal framework or the like is required inside the housing 12 in order to hold the modules of the suction system 50 in a fixed position in relation to one another.
  • the two inner sides 44 , 46 of the housing shells 14 , 16 each possess a rim 48 which has a step.
  • this step permits defined positioning of the upper housing shell 14 on the lower housing shell 16 , since the step 48 on the upper housing shell 14 is a “negative” of the lower step. Furthermore, this step leads to a more leakproof connection, so that the interior space of the housing 12 is more successfully encapsulated.
  • the inner sides of the two housing shells 14 , 16 can now be seen, without the suction system 50 inserted, in the two FIGS. 4 a and 4 b.
  • the lower housing shell 16 has a first depression 60 which is adapted to the lower part of the separating unit 52 and supports the latter. Adjacent to this depression, which has an annular supporting rim 62 , is another depression 64 which possesses the shape of a recumbent half-cylinder. This depression 64 is adapted to the suction unit 54 and supports the latter. The depression 64 thus has the function of a support surface for the suction unit, the two openings 28 being provided in the said depression 64 .
  • the two depressions 60 , 64 are separated by a wall which has, however, a semicircular cutout 67 which is open at the rim and is intended to accommodate a tubular connecting element between the separating unit 52 and the suction unit 54 .
  • the inner side of the lower housing shell 16 also has a depression 70 which opens, on one of its sides, into the depression 64 and, on its other side, into a semi-cylindrical clearance or depression 72 which, in turn, opens into the opening 18 for the air outlet.
  • a tubular sound-damping element 74 is inserted in this semi-cylindrical depression 72 .
  • the two depressions 70 , 72 are designed in such a way that an air flow can be conducted from the region of the depression 64 , through the depression 70 and the sound-damping element 74 lying in the depression 72 , to the outside through the opening 18 .
  • a cylindrical depression 76 is provided which then forms, together with the depression 64 in the lower housing shell 16 , a substantially cylindrical receptacle for the suction unit 54 .
  • a depression 78 is also provided, for the separating unit 52 , the geometry of which is adapted to the upper part of said separating unit 52 and which, together with the depression 76 , holds the suction system 50 securely in the housing 12 .
  • a raised region 80 which is adapted to the shape of the depression 70 and forms with the latter, when the housing shells are put on, a duct which is closed in the upward direction.
  • This raised region 80 seals off the depression 70 , so to speak, in the upward direction.
  • mounting surfaces 82 there are provided in the lateral boundaries of the depression 70 , mounting surfaces 82 , for example, which interact with corresponding surfaces 84 .
  • An air duct is thereby formed, in a manner comparable to a tubular section, merely as a result of the configuration of the inner sides of the two housing shells 14 , 16 .
  • a suitably shaped support surface or holding surface 86 which extends from the raised region 80 to the opening 18 shown on the right in FIG. 1 .
  • a groove 88 which runs in the peripheral direction and which serves, for example, to accommodate a sealing-off ring for a connecting element 20 .
  • an opening 90 which opens into the region of the electronics housing 40 is provided in the region between the support surface 86 and the depression 76 .
  • This opening 90 has the function of a duct 91 which is intended to direct air from the region of the suction unit 54 into the region of the electronics housing 40 .
  • FIGS. 5 a and 5 b show the inner sides 44 , 46 of the two housing shells 14 , 16 , with the inserted suction system 50 , sound-damping element 74 and connecting elements 20 .
  • connecting elements 20 preferably possess an annular web or flange 94 which engages in the groove 88 and thereby seals off the opening 20 on the one hand, and, on the other, secures the connecting element 20 against displacement in the axial direction.
  • the suction unit 54 which is designed as a radial suction machine 55 , has a lateral air outlet 96 out of which the suction air, which has been freed from secretions, is blown.
  • Said air outlet 96 opens into the depression 70 which forms, together with the raised region 80 in the upper housing shell 14 , an air duct which opens into the tubular sound-damping element 74 .
  • This sound-damping element 74 then conducts the blown-out air to the opening 18 in which the connecting element 20 is provided.
  • the suction unit 54 viewed in the longitudinal direction—has a central region 98 with cooling ribs which is smaller in diameter than the two outer longitudinal regions. Since the two depressions 64 , 76 in combination have—viewed in the longitudinal direction—an identical diameter, a clear space 100 is produced around the said central region 98 . At the same time, this clear space 100 possesses a connection to the opening 90 .
  • this clear space 100 which surrounds the said central region 98 of the suction unit 94 can be seen in its entirety.
  • the said clear space possesses a connection to the outside via the openings 28 in the base of the lower housing shell 16 .
  • the clear space 100 opens into the opening 90 and the duct 91 .
  • Said duct 91 opens into a clear region which is provided in the upper housing shell 14 and which accommodates the electronics housing 40 and is sealed off by the cover plate 41 in the upward direction and towards the front in relation to the side 22 .
  • FIG. 6 shows another sectional view of the suction device 10 , in which the suction unit 54 has been omitted and the separating unit 52 is represented instead.
  • the sectional view in FIG. 6 provides an unobstructed view of the duct 91 which runs perpendicularly upwards into the region below the cover plate 41 of the electronics housing 40 . Opening into this duct 91 is not only the clear space 100 which has been described above and which surrounds the suction unit 54 , but also a duct 102 which runs horizontally and provides a connection to a clear space 104 .
  • This clear space 104 surrounds at least part of the upper region of the separating unit 52 and possesses a connection to the opening 38 on the upper side of the upper housing shell 14 .
  • This clear space 104 makes it possible to conduct air round the upper region of the separating unit 52 and into the duct 102 and from there, via the duct 91 , into the region lying underneath the cover plate 41 , and to the outside through the opening 23 .
  • This air flow is generated by the separating unit 52 and serves mainly for cooling the latter. Furthermore, this air flow also additionally cools components within the electronics housing 40 .
  • the duct 91 combines two air flows which cool the suction unit 54 and separating unit 52 individually in each case and also, in addition, jointly cool electronic components within the electronics housing 40 .
  • These air-conducting elements are configured solely by suitably configuring the two housing shells 14 , 16 , so that separate structural parts, such as hose lines, etc., are not required.
  • the two housing shells 14 , 16 form a multiplicity of functional components without any other structural parts being required for this purpose.
  • These functional components include, for example, the air-conducting ducts which make it possible, for example, to conduct air round the suction unit 54 and the separating unit 52 and the electronics housing 40 .
  • the supporting feet, holding elements for lines, connections, motors, etc., or even the above-described step on the rim as a sealing-off measure, can also be described as functional components.
  • sound-damping and vibration-decoupling is achieved by suitable selection of a foamable or expandable material, so that other functional components are provided via the housing shells 14 , 16 .
  • rubber cushions or the like for vibration-decoupling are no long required.
  • the two housing shells 14 , 16 provide support surfaces which, on the one hand, support the modules provided inside the housing 12 , such as, for example, the separating unit, suction unit or electronics housing or, for example, valves, lines, etc., and, on the other hand, fix them in position inside the housing.
  • the modules provided inside the housing 12 such as, for example, the separating unit, suction unit or electronics housing or, for example, valves, lines, etc.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • External Artificial Organs (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US14/381,919 2012-02-29 2013-01-24 Suction Machine Comprising a Housing Made of Expanded Plastic Material Abandoned US20150027561A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE201210101642 DE102012101642A1 (de) 2012-02-29 2012-02-29 Saugmaschine mit Gehäuse aus expandiertem Kunststoff
DE102012101642.9 2012-02-29
PCT/EP2013/051265 WO2013127570A1 (de) 2012-02-29 2013-01-24 Saugmaschine mit gehäuse aus expandiertem kunststoff

Publications (1)

Publication Number Publication Date
US20150027561A1 true US20150027561A1 (en) 2015-01-29

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US14/381,919 Abandoned US20150027561A1 (en) 2012-02-29 2013-01-24 Suction Machine Comprising a Housing Made of Expanded Plastic Material

Country Status (7)

Country Link
US (1) US20150027561A1 (zh)
EP (1) EP2819615B1 (zh)
KR (2) KR101891932B1 (zh)
CN (1) CN104203147B (zh)
DE (1) DE102012101642A1 (zh)
ES (1) ES2661541T3 (zh)
WO (1) WO2013127570A1 (zh)

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WO2017112684A1 (en) * 2015-12-24 2017-06-29 Stryker Corporation Waste collection unit
KR20180126011A (ko) * 2016-03-17 2018-11-26 메델라 홀딩 아게 의료용 흡인 펌프
EP3461513A1 (en) * 2017-09-27 2019-04-03 Koninklijke Philips N.V. Pump device, comprising a pump and a housing accommodating the pump
CN111356487A (zh) * 2017-11-14 2020-06-30 美德乐控股公司 医用抽吸泵
US20210187177A1 (en) * 2016-02-19 2021-06-24 Koninklijke Philips N.V. Drive unit for a breast pump and breast pump
US20210404484A1 (en) * 2020-06-29 2021-12-30 Durr Dental Se Medical, in particular dental-medical, fan

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AT17302U1 (de) * 2020-11-02 2021-12-15 Pregenzer Bruno Haltevorrichtung für einen Abscheider und Abscheider mit einer solchen

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US3078579A (en) * 1960-10-28 1963-02-26 Pelton & Crane Company Dental aspirator with splash baffle
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Cited By (17)

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Publication number Priority date Publication date Assignee Title
EP4008370A1 (en) * 2015-12-24 2022-06-08 Stryker Corporation Waste collection unit
WO2017112684A1 (en) * 2015-12-24 2017-06-29 Stryker Corporation Waste collection unit
US11160909B2 (en) 2015-12-24 2021-11-02 Stryker Corporation Waste collection unit
US20210187177A1 (en) * 2016-02-19 2021-06-24 Koninklijke Philips N.V. Drive unit for a breast pump and breast pump
US11179511B2 (en) * 2016-03-17 2021-11-23 Medela Holding Ag Medical suction pump
KR20180126011A (ko) * 2016-03-17 2018-11-26 메델라 홀딩 아게 의료용 흡인 펌프
KR102353482B1 (ko) * 2016-03-17 2022-01-19 메델라 홀딩 아게 의료용 흡인 펌프
WO2019063664A1 (en) * 2017-09-27 2019-04-04 Koninklijke Philips N.V. PUMP DEVICE COMPRISING A PUMP AND A HOUSING LOADING THE PUMP
US20200254159A1 (en) * 2017-09-27 2020-08-13 Koninklijke Philips N.V. Pump device, comprising a pump and a housing accommodating the pump
US11666688B2 (en) * 2017-09-27 2023-06-06 Koninklijke Philips N.V. Pump device, comprising a pump and a housing accommodating the pump
EP3461513A1 (en) * 2017-09-27 2019-04-03 Koninklijke Philips N.V. Pump device, comprising a pump and a housing accommodating the pump
CN111132706A (zh) * 2017-09-27 2020-05-08 皇家飞利浦有限公司 包括泵和容纳泵的壳体的泵装置
CN111356487A (zh) * 2017-11-14 2020-06-30 美德乐控股公司 医用抽吸泵
TWI826403B (zh) * 2017-11-14 2023-12-21 瑞士商米黛拉控股公司 醫療吸取泵
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US11619243B2 (en) * 2020-06-29 2023-04-04 Dürr Dental SE Medical, in particular dental-medical, fan
US20210404484A1 (en) * 2020-06-29 2021-12-30 Durr Dental Se Medical, in particular dental-medical, fan

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KR101891932B1 (ko) 2018-08-24
EP2819615B1 (de) 2018-01-03
KR20170008324A (ko) 2017-01-23
KR20140136919A (ko) 2014-12-01
ES2661541T3 (es) 2018-04-02
DE102012101642A1 (de) 2013-08-29
CN104203147B (zh) 2017-05-10
EP2819615A1 (de) 2015-01-07
WO2013127570A1 (de) 2013-09-06
CN104203147A (zh) 2014-12-10

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