WO1998025539A1 - Device for sucking up and collecting bone particles - Google Patents

Device for sucking up and collecting bone particles Download PDF

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Publication number
WO1998025539A1
WO1998025539A1 PCT/DE1997/000668 DE9700668W WO9825539A1 WO 1998025539 A1 WO1998025539 A1 WO 1998025539A1 DE 9700668 W DE9700668 W DE 9700668W WO 9825539 A1 WO9825539 A1 WO 9825539A1
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WIPO (PCT)
Prior art keywords
bone
housing
filter
adapter
ring
Prior art date
Application number
PCT/DE1997/000668
Other languages
German (de)
French (fr)
Inventor
Robert Böttcher
Original Assignee
Boettcher Robert
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 Boettcher Robert filed Critical Boettcher Robert
Priority to AU27622/97A priority Critical patent/AU2762297A/en
Publication of WO1998025539A1 publication Critical patent/WO1998025539A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/06Saliva removers; Accessories therefor
    • A61C17/065Saliva removers; Accessories therefor characterised by provisions for processing the collected matter, e.g. for separating solids or air
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71Suction drainage systems
    • A61M1/79Filters for solid matter

Definitions

  • the invention relates to a device for suctioning and collecting bone particles such as bone meal and drilling chips from the cooling or rinsing liquid in dental work in implantology and in the field of bone regeneration in periodontology.
  • a device for suctioning bone and metal chips in dental work which consists of a suction pipe and a filter housing with a suction hose connection.
  • a filter for collecting the bone chips and a check valve are arranged in the housing.
  • An adjustable throttle valve is provided between them.
  • a movable emptying piston for dispensing the collected chips is also arranged inside the housing.
  • DE GM 86 09 630 discloses a device for collecting drilling dust from the rinsing water during operations on the bony skeleton, in particular on the head, in which a bone meal filter is arranged in the housing.
  • the housing consists of two interconnected cylindrical halves and is provided with two connecting pieces which are connected to a switchable bypass line running parallel to the flushing water line.
  • the bone filter is designed as a reinforced network and can be removed from the housing. It consists of polymeric material and has variable pore sizes.
  • the disadvantage of this device is the uneven deposition of the captured bone particles in the filter, which results in an uneven flushing.
  • the uneven layer also complicates further processing.
  • a "bone all” is also known from a brochure from S & W DENTAL-MED, 47441 Moers.
  • This device consists of an aluminum housing acting as a handle with a suction hose.
  • the housing is provided with a sealing cap with a surgical suction device.
  • Inside the housing there is a collecting sieve (filter insert) for autologous bone material.
  • the filter sieve is made of sterilizable plastic and can be used several times.
  • This device has several disadvantages. This way, corrosion particles of the aluminum housing with the augmentate can easily get into the operating room there is the problem of multiple use of a plastic sieve (cleaning almost impossible) Furthermore, edges and grooves as well as the difficult to access inner seal cause problems during cleaning.
  • the invention has for its object the disadvantages of Eliminate the prior art and to create a further device for suction and collection of bone particles such as bone meal and bone chips, which enables a uniform precipitation of the filtrate on the sieve surface of the filter.
  • a conical inlet opening merges into a dome-shaped cavity of the upper part at a sharp-edged transition. This is followed by a funnel-shaped cavity in the lower part.
  • a filter screen is arranged between the cavities.
  • the upper part is provided with a collar that receives an O-ring.
  • the lower part is provided with a recess with a wall and with a connecting piece for a hose.
  • the collar, the O-ring and the wall form the housing lock in which the filter screen is locked.
  • the upper part and the lower part are made of pure titanium.
  • the filter screens are graduated in degree of fineness.
  • the filter screen is welded to an edge.
  • the suction cannula is fastened in an adapter of the upper part, which is provided with different inlet openings.
  • the invention essentially consists of a suction cannula 1, an adapter 7, a housing with the upper part 2, the lower part 4 and a filter screen 3.
  • the upper part 2 is a rotationally symmetrical rotating part with a collar 2a, which has an annular groove for an O-ring 5 is provided.
  • a slightly conical inlet opening 2b leads over a sharp-edged transition 2c into a dome-like cavity 2d, which is delimited from the funnel-shaped cavity 4b of the likewise rotationally symmetrical lower part 4 by a filter screen 3.
  • the filter screen 3 is made of sterilizable plastic and welded to a reinforcing edge.
  • Filter sieves 3 with different pore openings that is to say different fineness, can be used, for example those with pore openings of approximately 100-300 ⁇ m. Due to the high demands on sterility and purity, filter screens 3 are used as single-use items.
  • the lower part 4 is provided with a recess, as a result of which the wall 4a is provided with a system 4d for the filter screen 3.
  • the cavity 4b opens into a connecting piece 4c for a hose 6 of a treatment unit with suction device, not shown.
  • Upper part 2 and lower part 4 are connected to one another by pushing the wall 4a over the collar 2a and thus compressing the O-ring 5.
  • the filter screen 3 is locked in an annular groove by the end face of the collar 2a and the system 4d.
  • These elements form the closure of the housing of the device made of highly resistant pure titanium.
  • an adapter 7, preferably made of plastic, with its likewise conical approach is received in the inlet opening 2b.
  • the adapter 7 is provided with different-sized bores for receiving all known suction cannulas 1.
  • These can be made of metal or plastic. All components of the device can be sterilized. It is ergonomically designed as a handle.
  • the device is connected to a treatment device, not shown, with a suction connection.
  • Bone meal or Bone chips arise in the treatment area through the use of medical devices with a material-removing effect such as sawing, milling, drilling, etc., e.g. in dental implantology, for example after cavity preparation for implants or in the targeted removal of bone for augmentation and in the area of bone regeneration in periodontology . Augmentation with autologous material should always have priority.
  • the suction cannula 1 is brought into the operating area so that the bone material (bone meal, bone chips) in a cooling or rinsing liquid is sucked through the conical inlet opening 2b and fluidically swirled at the sharp-edged transition 2c in the dome-shaped cavity 2d.
  • the invention is used commercially in dental work in implantology and in the field of bone regeneration in periodontology in conjunction with other medical devices.

Abstract

This invention concerns a device for sucking up and collecting bone particles, such as bone meal, and bore chips from cooling and/or rinsing liquids during dental interventions in implantology and in the field of bone regeneration periodontology. Said device essentially consists of an aspirator tip (1), an adapter (7), and a housing with an upper part (2), a lower part (4) and a filter sieve (3). A conical intake port (2b) leads past a sharp-edged transition section (2c) into a dome-shaped cavity (2d) in the upper part (2). A funnel-shaped cavity (4b) in the lower part (4) adjoins it. Between the cavities (2d; 4b), a filter sieve (3) is located. The upper part (2) is provided with a collar (2a) into which an O-ring (5) fits. The lower part (4) is provided with a recess with a wall (4a) and with a connecting port (4c) for a hose (6). The collar (2a), the O-ring (5) and the wall (4a) form the housing closure in which the filter sieve (3) is seated. The upper part (2) and the lower part (4) are made of pure titanium. The filter sieves(3) are graded in degree of fineness and soldered through the rim. The adapter (7) is provided with different inlet ports for different aspirator tips.

Description

Bezeichnung der ErfindungName of the invention
Vorrichtung zum Absaugen und Auffangen von KnochenteilchenDevice for aspirating and collecting bone particles
Technisches GebietTechnical field
Die Erfindung betrifft eine Vorrichtung zum Absaugen und Auffangen von Knochenteilchen wie Knochenmehl und Bohrspänen aus der Kühl- bzw. Spülflüssigkeit bei zahnärtzlichen Arbei- ten in der Implantologie und im Bereich der Knochenregeneration der Parodontologie.The invention relates to a device for suctioning and collecting bone particles such as bone meal and drilling chips from the cooling or rinsing liquid in dental work in implantology and in the field of bone regeneration in periodontology.
Stand der TechnikState of the art
Vorrichtungen zum Absaugen und Auffangen von Knochenteilchen wie Knochenmehl und Knochenspäne sind hinreichend bekannt. So ist aus dem DE GM 295 147 26 eine Vorrichtung zum Absaugen von Knochen- und Metallspänen bei zahnärztlichen Arbeiten bekannt, die aus einem Absaugrohr und einem Filtergehäuse mit Saugschlauchanschluß besteht. Im Gehäuse sind eine Filter zum Auffangen der Knochenspäne und ein Rückschlagventil angeordnet. Zwischen diesen ist eine verstellbare Drosselklappe vorgesehen. Im Inneren des Gehäuses ist weiterhin ein bewegbarer Entleerungskolben zur Ausgabe der aufgefangenen Späne ange- ordnet.Devices for suctioning and collecting bone particles such as bone meal and bone chips are well known. From DE GM 295 147 26 a device for suctioning bone and metal chips in dental work is known, which consists of a suction pipe and a filter housing with a suction hose connection. A filter for collecting the bone chips and a check valve are arranged in the housing. An adjustable throttle valve is provided between them. A movable emptying piston for dispensing the collected chips is also arranged inside the housing.
Diese Vorrichtung ist sehr aufwendig. Mit ihrer Verwendung treten Sterilitäts- und Reinheitsprobleme auf. So ist nach jeder Anwendung die gesamte Vorrichtung gründlich zu reinigen und zu sterilisieren. Sie ist nicht zum Auffangen kleinster Knochenteilchen geeignet. Weiterhin ist aus dem DE GM 86 09 630 eine Vorrichtung zum Auffangen von Bohrmehl aus dem Spülwasser bei Operationen am knöchernen Skelett, insbesondere am Kopf bekannt, bei der im Gehäuse ein Knochenmehlfilter angeordnet ist. Das Gehäuse be- steht aus zwei miteinander verbundenen zylindrischen Hälften und ist mit zwei Anschlußstutzen versehen, die an eine zur parallelen Spülwasserleitung verlaufende umschaltbare Bypass- leitung angeschlossen sind. Das Knochenfilter ist als ein verstärktes Netz ausgebildet und aus dem Gehäuse herausnehm- bar. Es besteht aus polymerem Material und hat variable Porengrößen.This device is very complex. With their use, sterility and purity problems arise. After each use, the entire device must be thoroughly cleaned and sterilized. It is not suitable for collecting the smallest bone particles. Furthermore, DE GM 86 09 630 discloses a device for collecting drilling dust from the rinsing water during operations on the bony skeleton, in particular on the head, in which a bone meal filter is arranged in the housing. The housing consists of two interconnected cylindrical halves and is provided with two connecting pieces which are connected to a switchable bypass line running parallel to the flushing water line. The bone filter is designed as a reinforced network and can be removed from the housing. It consists of polymeric material and has variable pore sizes.
Nachteilig bei dieser Vorrichtung ist die ungleichmäßige Ablagerung der aufgefangenen Knochenteilchen im Filter, wodurch eine ungleichmäßige Durchspülung auftritt . Außerdem erschwert die ungleichmäßige Schicht die Weiterverarbeitung.The disadvantage of this device is the uneven deposition of the captured bone particles in the filter, which results in an uneven flushing. The uneven layer also complicates further processing.
Auch ist aus einem Prospekt der Firma S & W DENTAL - MED, 47441 Moers, eine „Knochen alle" bekannt. Diese Vorrichtung besteht aus einem als Griff fungierenden Aluminiumgehäuse mit einem Absaugschlauch. Das Gehäuse ist mit einer Verschlußkap- pe mit chirurgischem Absauger versehen. Im Gehäuseinneren ist ein Auffangsieb (Filtereinsatz) für autologes Knochenmaterial angeordnet. Das Filtersieb besteht aus sterilisierbarem Kunststoff und dient zur mehrmaligen Verwendung. Diese Vorrichtung ist mit einigen Nachteilen behaftet. So können leicht Korrosionsteilchen des Aluminiumgehäuses mit dem Augmentat in den OP-Bereich gelangen. Außerdem besteht die Problematik der Mehrfachverwendung eines KunststoffSiebes (Reinigung nahezu unmöglich) . Weiterhin bereiten Kanten und Rillen sowie die schwer zugängliche innenliegende Dich- tung Probleme bei der Reinigung.A "bone all" is also known from a brochure from S & W DENTAL-MED, 47441 Moers. This device consists of an aluminum housing acting as a handle with a suction hose. The housing is provided with a sealing cap with a surgical suction device. Inside the housing there is a collecting sieve (filter insert) for autologous bone material. The filter sieve is made of sterilizable plastic and can be used several times. This device has several disadvantages. This way, corrosion particles of the aluminum housing with the augmentate can easily get into the operating room there is the problem of multiple use of a plastic sieve (cleaning almost impossible) Furthermore, edges and grooves as well as the difficult to access inner seal cause problems during cleaning.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, die Nachteile des Standes der Technik zu beseitigen und eine weitere Vorrichtung zum Absaugen und Auffangen von Knochenteilchen wie Knochenmehl und Knochenspäne zu schaffen, die einen gleichmäßigen Niederschlag des Filtrates auf der Sieboberfläche des Filters ermöglicht.The invention has for its object the disadvantages of Eliminate the prior art and to create a further device for suction and collection of bone particles such as bone meal and bone chips, which enables a uniform precipitation of the filtrate on the sieve surface of the filter.
Erfindungsgemäß geht eine konisch gehaltene Einlaßöffnung an einem scharfkantigen Übergang in einen domförmigen Hohlraum des Oberteils über. Hieran schließt sich ein trichterförmi- ger Hohlraum des Unterteils an. Zwischen den Hohlräumen ist ein Filtersieb angeordnet. Das Oberteil ist mit einem einen O-Ring aufnehmenden Bund versehen. Das Unterteil ist mit einem Einstich mit einer Wandung und mit einem Anschlußstutzen für einen Schlauch versehen. Der Bund, der O-Ring und die Wandung bilden den Gehäuseverschluß, in dem das Filtersieb arretiert ist. Das Oberteil und das Unterteil sind aus Reintitan gefertigt. Die Filtersiebe sind im Feinheitsgrad abgestuft. Das Filtersieb ist mit einem Rand verschweißt. Die Saugkanüle ist in einem Adapter des Oberteils befestigt, der mit unterschiedlichen Einlaßöffnungen versehen ist.According to the invention, a conical inlet opening merges into a dome-shaped cavity of the upper part at a sharp-edged transition. This is followed by a funnel-shaped cavity in the lower part. A filter screen is arranged between the cavities. The upper part is provided with a collar that receives an O-ring. The lower part is provided with a recess with a wall and with a connecting piece for a hose. The collar, the O-ring and the wall form the housing lock in which the filter screen is locked. The upper part and the lower part are made of pure titanium. The filter screens are graduated in degree of fineness. The filter screen is welded to an edge. The suction cannula is fastened in an adapter of the upper part, which is provided with different inlet openings.
Kurze Beschreibung der ZeichnungBrief description of the drawing
In der zugehörigen Zeichnung ist die erfindungsgemäße Lösung im Schnitt dargestellt.In the accompanying drawing, the solution according to the invention is shown in section.
Bester Weg zur Ausführung der ErfindungBest way to carry out the invention
Die Erfindung besteht im Wesentlichen aus einer Saugkanüle 1, einem Adapter 7, einem Gehäuse mit dem Oberteil 2, dem Unterteil 4 und einem Filtersieb 3. Das Oberteil 2 ist ein rotationssymmetrisches Drehteil mit einem Bund 2a, der mit einer Ringnut für einen O-Ring 5 versehen ist. Eine leicht konische Einlaßöffnung 2b führt über einen scharfkantigen Übergang 2c in einen domartigen Hohlraum 2d, der vom trichterförmigen Hohlraum 4b des ebenfalls rotationssymmetrischen Unterteils 4 durch ein Filtersieb 3 abgegrenzt ist. Das Filtersieb 3 ist aus sterilisierbarem Kunststoff gefertigt und mit einem Verstärkungsrand verschweißt. Es können Filtersiebe 3 mit unterschiedlichen Porenöffnungen, also unterschiedlicher Feinheit, verwendet werden, z.B. solche mit Porenöffnungen von ca. 100 - 300 μm. Wegen der hohen Anforderungen an Sterilität und Reinheit kommen Filtersiebe 3 als Einwegartikel zum Einsatz.The invention essentially consists of a suction cannula 1, an adapter 7, a housing with the upper part 2, the lower part 4 and a filter screen 3. The upper part 2 is a rotationally symmetrical rotating part with a collar 2a, which has an annular groove for an O-ring 5 is provided. A slightly conical inlet opening 2b leads over a sharp-edged transition 2c into a dome-like cavity 2d, which is delimited from the funnel-shaped cavity 4b of the likewise rotationally symmetrical lower part 4 by a filter screen 3. The filter screen 3 is made of sterilizable plastic and welded to a reinforcing edge. Filter sieves 3 with different pore openings, that is to say different fineness, can be used, for example those with pore openings of approximately 100-300 μm. Due to the high demands on sterility and purity, filter screens 3 are used as single-use items.
Das Unterteil 4 ist mit einem Einstich versehen, wodurch die Wandung 4a eine Anlage 4d für das Filtersieb 3 erhält. Der Hohlraum 4b mündet in einen Anschlußstutzen 4c für einen Schlauch 6 einer nicht näher bezeichneten Behandlungseinheit mit Saugvorrichtung.The lower part 4 is provided with a recess, as a result of which the wall 4a is provided with a system 4d for the filter screen 3. The cavity 4b opens into a connecting piece 4c for a hose 6 of a treatment unit with suction device, not shown.
Oberteil 2 und Unterteil 4 werden miteinander verbunden, indem die Wandung 4a über den Bund 2a geschoben und somit der O-Ring 5 zusammengedrückt wird. Dabei wird das Filtersieb 3 durch die Stirnseite des Bundes 2a und die Anlage 4d in einer Ringnut arretiert. Diese Elemente bilden den Verschluß des aus hochresistentem Reintitan gefertigten Gehäuses der Vorrichtung. Entsprechend seiner vielfältigen Verwendungsmöglichkeiten wird in der Einlaßöffnung 2b ein vorzugsweise aus Kunststoff bestehender Adapter 7 mit seinem ebenfalls koni- sehen Ansatz aufgenommen. Der Adapter 7 ist mit verschiedengroßen Bohrungen zur Aufnahme aller bekannten Saugkanülen 1 versehen. Diese können aus Metall oder Kunststoff gefertigt sein. Alle Bestandteile der Vorrichtung sind sterilisierbar. Sie ist ergonomisch vorteilhaft als Griff gestaltet.Upper part 2 and lower part 4 are connected to one another by pushing the wall 4a over the collar 2a and thus compressing the O-ring 5. The filter screen 3 is locked in an annular groove by the end face of the collar 2a and the system 4d. These elements form the closure of the housing of the device made of highly resistant pure titanium. In accordance with its wide range of possible uses, an adapter 7, preferably made of plastic, with its likewise conical approach is received in the inlet opening 2b. The adapter 7 is provided with different-sized bores for receiving all known suction cannulas 1. These can be made of metal or plastic. All components of the device can be sterilized. It is ergonomically designed as a handle.
Die Wirkungsweise der erfindungsgemäßen Vorrichtung ist folgende:The operation of the device according to the invention is as follows:
Die Vorrichtung ist an eine nicht dargestellte Behandlungseinrichtung mit Sauganschluß angeschlossen. Knochenmehl bzw. Knochenspäne entstehen im Behandlungsbereich durch den Einsatz von medizinischen Geräten mit materialabtragender Wirkung wie Sägen, Fräsen, Bohren usw., z.B. in der zahnärztlichen Implantologie beispielsweise nach Kavitätenpräparation für Implantate oder bei der gezielten Entnahme von Knochen für die Augmentation und im Bereich der Knochenregeneration in der Parodontologie. Dabei soll die Augmentation mit auto- logem Material immer Priorität haben. Die Saugkanüle 1 wird hierzu in den OP-Bereich gebracht, so daß das in einer Kühl- bzw. Spülflüssigkeit befindliche Knochenmaterial (Knochenmehl, Knochenspäne) angesaugt die konische Einlaßöffnung 2b passiert und am scharfkantigen Übergang 2c im domförmigen Hohlraum 2d strömungstechnisch verwirbelt wird. Diese technischen Maßnahmen bewirken, daß das Filtrat gleichmäßig verteilt auf der etwa 3 cm2 großen Sieboberfläche gesammelt wird. Die Entnahme des autologen Materials -etwa 3 cm3- ist anschließend einfach. Hierzu öffnet man das Gehäuse und gibt das Filtersieb 3 samt Augmentat in eine vorbereitete sterile Schale. Nach Einlegen eines neuen sterilen Filtersiebes 3 ist die Vorrichtung wieder einsatzfähig. Sie wird durch ihre Konstruktion den Anforderungen an Sterilität und Reinheit gerecht. Ihr geringes Gewicht und die ergonomische Formgebung ermöglichen eine problemlose Handhabung. Aufgrund der geringen Anzahl an Bestandteilen ist sie preiswert in der Herstellung.The device is connected to a treatment device, not shown, with a suction connection. Bone meal or Bone chips arise in the treatment area through the use of medical devices with a material-removing effect such as sawing, milling, drilling, etc., e.g. in dental implantology, for example after cavity preparation for implants or in the targeted removal of bone for augmentation and in the area of bone regeneration in periodontology . Augmentation with autologous material should always have priority. For this purpose, the suction cannula 1 is brought into the operating area so that the bone material (bone meal, bone chips) in a cooling or rinsing liquid is sucked through the conical inlet opening 2b and fluidically swirled at the sharp-edged transition 2c in the dome-shaped cavity 2d. These technical measures have the effect that the filtrate is collected evenly distributed on the approximately 3 cm 2 screen surface. The autologous material - about 3 cm 3 - is then easy to remove. To do this, open the housing and place the filter sieve 3 together with the augmentate in a prepared sterile bowl. After inserting a new sterile filter screen 3, the device is ready for use again. Its design meets the requirements for sterility and purity. Their low weight and ergonomic shape enable easy handling. Due to the small number of components, it is inexpensive to manufacture.
Gewerbliche AnwendbarkeitIndustrial applicability
Die Erfindung wird bei zahnärztlichen Arbeiten in der Implan- tologie und im Bereich der Knochenregeneration der Parodontologie in Verbindung mit anderen medizintechnischen Geräten gewerblich genutzt. The invention is used commercially in dental work in implantology and in the field of bone regeneration in periodontology in conjunction with other medical devices.

Claims

Schutzansprüche Protection claims
1. Vorrichtung zum Absaugen und Auffangen von Knochenteilchen wie Knochenmehl und Knochenspänen aus der Kühl- bzw. Spül- flüssigkeit bei zahnärztlichen Arbeiten, bestehend aus einer Saugkanüle und einem Gehäuse mit Auffangsieb, dadurch gekennzeichnet, daß eine konisch gehaltene Einlaßöffnung (2b) an einem scharfkantigen Übergang (2c) in einen dom- förmigen Hohlraum (2d) des Oberteils (2) übergeht, an die sich ein trichterförmiger Hohlraum (4b) des Unterteils (4) anschließt und daß zwischen den Hohlräumen (2d;4b) ein Filtersieb (3) angeordnet ist.1. Device for suction and collection of bone particles such as bone meal and bone chips from the cooling or rinsing liquid in dental work, consisting of a suction cannula and a housing with a collecting sieve, characterized in that a conical inlet opening (2b) on a sharp-edged Transition (2c) into a dome-shaped cavity (2d) of the upper part (2), which is followed by a funnel-shaped cavity (4b) of the lower part (4) and that between the cavities (2d; 4b) a filter screen (3) is arranged.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Oberteil (2) mit einem einen O-Ring (5) aufnehmenden2. Device according to claim 1, characterized in that the upper part (2) with an O-ring (5) receiving
Bund (2a) versehen ist.Bund (2a) is provided.
3. Vorrichtung nach Anspruch 1 bis 2, dadurch gekennzeichnet, daß das Unterteil (4) einen Einstich mit einer Wandung (4a) und einem Anschlußstutzen (4c) für einen Schlauch (6) versehen ist.3. Device according to claim 1 to 2, characterized in that the lower part (4) is provided with a recess with a wall (4a) and a connecting piece (4c) for a hose (6).
4. Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der Bund (2a), der O-Ring (5) und die Wandung (4a) den Gehäuseverschluß bilden, in dem das Filtersieb (3) arretiert ist.4. Apparatus according to claim 1 to 3, characterized in that the collar (2a), the O-ring (5) and the wall (4a) form the housing closure in which the filter screen (3) is locked.
5. Vorrichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß das Oberteil (2) und das Unterteil (4) aus Reintitan gefertigt sind.5. Apparatus according to claim 1 to 4, characterized in that the upper part (2) and the lower part (4) are made of pure titanium.
6. Vorrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß die Filtersiebe (3) im Feinheitsgrad abgestuft sind. 6. The device according to claim 1 to 5, characterized in that the filter screens (3) are graduated in degree of fineness.
7. Vorrichtung nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß das Filtersieb (3) mit einem Rand verschweißt ist.7. The device according to claim 1 to 6, characterized in that the filter screen (3) is welded to an edge.
8. Vorrichtung nach Anspruch 1 bis 7, dadurch gekennzeichnet daß die Saugkanüle (1) in einem Adapter (7) des Oberteils (2) befestigt ist.8. The device according to claim 1 to 7, characterized in that the suction cannula (1) in an adapter (7) of the upper part (2) is attached.
9. Vorrichtung nach Anspruch 1 bis 8, dadurch gekennzeichnet, daß der Adapter (7) mit unterschiedlichen Einlaßöffnungen versehen ist. 9. The device according to claim 1 to 8, characterized in that the adapter (7) is provided with different inlet openings.
PCT/DE1997/000668 1996-12-13 1997-04-02 Device for sucking up and collecting bone particles WO1998025539A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU27622/97A AU2762297A (en) 1996-12-13 1997-04-02 Device for sucking up and collecting bone particles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29621636U DE29621636U1 (en) 1996-12-13 1996-12-13 Device for aspirating and collecting bone particles
DE29621636.4 1996-12-13

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WO1998025539A1 true WO1998025539A1 (en) 1998-06-18

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PCT/DE1997/000668 WO1998025539A1 (en) 1996-12-13 1997-04-02 Device for sucking up and collecting bone particles

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DE (1) DE29621636U1 (en)
WO (1) WO1998025539A1 (en)

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WO2003073945A1 (en) * 2002-03-07 2003-09-12 Sandor George K B Bone chip harvesting trap
US6764452B1 (en) 1999-11-23 2004-07-20 Nuvasive, Inc. Bone graft harvester
US7195629B2 (en) 2000-09-15 2007-03-27 Boston Scientific Scimed, Inc. Methods and systems for focused bipolar tissue ablation
US8608804B2 (en) 2004-03-29 2013-12-17 Nuvasive, Inc. Systems and methods for spinal fusion
US8870960B2 (en) 2005-07-28 2014-10-28 Nuvasive, Inc. Total disc replacement system and related methods
US8920500B1 (en) 2009-04-16 2014-12-30 Nuvasive, Inc. Methods and apparatus for performing spine surgery
USD721808S1 (en) 2011-11-03 2015-01-27 Nuvasive, Inc. Intervertebral implant
USD731063S1 (en) 2009-10-13 2015-06-02 Nuvasive, Inc. Spinal fusion implant
US9101484B2 (en) 2000-07-17 2015-08-11 Nuvasive, Inc. Stackable spinal support system
USD741488S1 (en) 2006-07-17 2015-10-20 Nuvasive, Inc. Spinal fusion implant
US9168152B2 (en) 2008-02-29 2015-10-27 Nuvasive, Inc. Implants and methods for spinal fusion
US9186261B2 (en) 2007-03-07 2015-11-17 Nuvasive, Inc. System and methods for spinal fusion
US9198765B1 (en) 2011-10-31 2015-12-01 Nuvasive, Inc. Expandable spinal fusion implants and related methods
USD754346S1 (en) 2009-03-02 2016-04-19 Nuvasive, Inc. Spinal fusion implant
US9351845B1 (en) 2009-04-16 2016-05-31 Nuvasive, Inc. Method and apparatus for performing spine surgery
US9387090B2 (en) 2009-03-12 2016-07-12 Nuvasive, Inc. Vertebral body replacement
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US8870960B2 (en) 2005-07-28 2014-10-28 Nuvasive, Inc. Total disc replacement system and related methods
US9168149B2 (en) 2005-07-28 2015-10-27 NaVasive, Inc. Total disc replacement system and related methods
US9610171B2 (en) 2005-07-28 2017-04-04 Nuvasive, Inc. Total disc replacement system and related methods
USD741488S1 (en) 2006-07-17 2015-10-20 Nuvasive, Inc. Spinal fusion implant
US11638652B2 (en) 2007-03-07 2023-05-02 Nuvasive, Inc. Systems and methods for spinal fusion
US9918852B2 (en) 2007-03-07 2018-03-20 Nuvasive, Inc. System and methods for spinal fusion
US9186261B2 (en) 2007-03-07 2015-11-17 Nuvasive, Inc. System and methods for spinal fusion
US9486329B2 (en) 2007-03-07 2016-11-08 Nuvasive, Inc. System and methods for spinal fusion
US9907672B1 (en) 2008-02-29 2018-03-06 Nuvasive, Inc. Implants and methods for spinal fusion
US10842646B2 (en) 2008-02-29 2020-11-24 Nuvasive, In.C Implants and methods for spinal fusion
US9168152B2 (en) 2008-02-29 2015-10-27 Nuvasive, Inc. Implants and methods for spinal fusion
USD797934S1 (en) 2009-03-02 2017-09-19 Nuvasive, Inc. Spinal fusion implant
USD754346S1 (en) 2009-03-02 2016-04-19 Nuvasive, Inc. Spinal fusion implant
US9387090B2 (en) 2009-03-12 2016-07-12 Nuvasive, Inc. Vertebral body replacement
US11712344B2 (en) 2009-03-12 2023-08-01 Nuvasive, Inc. Vertebral body replacement
US11458025B2 (en) 2009-03-12 2022-10-04 Nuvasive, Inc. Vertebral body replacement
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US10413421B2 (en) 2009-03-12 2019-09-17 Nuvasive, Inc. Vertebral body replacement
US10390960B2 (en) 2009-03-12 2019-08-27 Nuvasive, Inc. Vertebral body replacement
US10426627B2 (en) 2009-04-16 2019-10-01 Nuvasive, Inc. Methods and apparatus for performing spine surgery
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US9757246B1 (en) 2009-04-16 2017-09-12 Nuvasive, Inc. Methods and apparatus for performing spine surgery
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US9198765B1 (en) 2011-10-31 2015-12-01 Nuvasive, Inc. Expandable spinal fusion implants and related methods
USD721808S1 (en) 2011-11-03 2015-01-27 Nuvasive, Inc. Intervertebral implant
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