DE20216631U1 - Syringe for mixing solids and liquids, e.g. adhesives or bone cement, comprising liquid-tight piston in cylinder which is not air-tight - Google Patents

Syringe for mixing solids and liquids, e.g. adhesives or bone cement, comprising liquid-tight piston in cylinder which is not air-tight Download PDF

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DE20216631U1
DE20216631U1 DE20216631U DE20216631U DE20216631U1 DE 20216631 U1 DE20216631 U1 DE 20216631U1 DE 20216631 U DE20216631 U DE 20216631U DE 20216631 U DE20216631 U DE 20216631U DE 20216631 U1 DE20216631 U1 DE 20216631U1
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air
syringe
tight
liquid
solid
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8802—Equipment for handling bone cement or other fluid fillers
    • A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
    • A61B17/8827—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it with filtering, degassing, venting or pressure relief means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/80—After-treatment of the mixture
    • B01F23/803—Venting, degassing or ventilating of gases, fumes or toxic vapours from the mixture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/25—Mixers with loose mixing elements, e.g. loose balls in a receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/25—Mixers with loose mixing elements, e.g. loose balls in a receptacle
    • B01F33/251—Mixers with loose mixing elements, e.g. loose balls in a receptacle using balls as loose mixing element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B01F33/50112—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held of the syringe or cartridge type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/181—Preventing generation of dust or dirt; Sieves; Filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/20—Mixing of ingredients for bone cement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/36—Mixing of ingredients for adhesives or glues; Mixing adhesives and gas

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  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Toxicology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

A syringe comprises liquid-tight piston in injection cylinder (1) which is not air-tight.

Description

Beim Mischen von flüssigen mit pulverförmigen Substanzen, wie dies z.B. bei der Zubereitung von bestimmten Klebstoffen oder Knochenzement erforderlich ist, wird beim offenen Rühren immer Luft untergemischt, was der Festigkeit der Substanzen nicht zuträglich ist.When mixing liquid with powdery Substances such as when preparing certain adhesives or bone cement is always required when stirring open Air mixed in, which is not conducive to the strength of the substances.

Im Bereich der Knochenzemente wurden zur Lösung dieses Problems z.B. komplizierte Vakuum-Mischapparate entwickelt. Die vorliegende Erfindung beschreibt eine einfache Vorrichtung, mit der das Mischen von Pulver mit flüssigen Substanzen oder auch von zwei verschiedenen flüssigen Substanzen weitgehend luftfrei erfolgen kann.In the area of bone cement to the solution this problem e.g. complicated vacuum mixers developed. The present invention describes a simple device with the mixing of powder with liquid substances or also of two different liquid Substances can be largely air-free.

Die Vorrichtung besteht aus einem Spritzenzylinder (1), der an seiner Spitze mit einem Stopfen (12) verschlossen ist. In dem Spritzenzylinder befindet sich eine Kugel (4), die zum Mischen des Inhalts durch Schütteln dient. Diese Kugel ist vorzugsweise aus Stahl.The device consists of a syringe barrel ( 1 ) with a stopper at the top ( 12 ) is closed. There is a ball in the syringe barrel ( 4 ), which is used to mix the contents by shaking. This ball is preferably made of steel.

Die zu mischenden Bestandteile, etwa ein Pulver und eine Flüssigkeit werden in das offenen Ende des Spritzenzylinders (1) hineingegeben, und danach wird der Spritzenkolben (5) eingesetzt. Dieses Einsetzen des Spritzenkolbens (5) ist normalerweise nicht ohne weiteres möglich, da die eingeschlossenen Luft dem entgegensteht. Deshalb ist der Spritzenkolben (5) mit einer Entlüftungsvorrichtung versehen, die je nach Charakter der zu mischenden Substanzen aus kleinen Löchern (10) im Boden (7) des Spritzenkolbens (5) bestehen kann, oder aber durch die Anordnung von geeigneten Filtermedien (11), die zwar die Luft frei entweichen lassen, nicht aber die flüssigen Bestandteile des Zylinders. Dadurch kann der Kolben (5) problemlos in den Zylinder eingeführt werden, die Luft entweicht dabei, so dass nach dem Entweichen des Luftüberstandes die in der Spritze befindlichen Substanzen nun mehr durch Schütteln mit Hilfe der Stahlkugel (4) vermischt werden, ohne dass nennenswerte Mengen Luft dabei untergemischt werden.The ingredients to be mixed, such as a powder and a liquid, are placed in the open end of the syringe barrel ( 1 ) and then the syringe plunger ( 5 ) used. This insertion of the syringe plunger ( 5 ) is normally not easily possible because the enclosed air prevents this. Therefore the syringe plunger ( 5 ) with a venting device which, depending on the character of the substances to be mixed, consists of small holes ( 10 ) in the ground ( 7 ) of the syringe plunger ( 5 ) can exist, or by arranging suitable filter media ( 11 ) that allow the air to escape freely, but not the liquid components of the cylinder. This allows the piston ( 5 ) can be easily introduced into the cylinder, the air escapes, so that after the excess air has escaped, the substances in the syringe can now be shaken with the help of the steel ball ( 4 ) are mixed without significant amounts of air being mixed in.

Nach dem Durchmischen kann die Kappe (12) an der Spitze (3) der Spritze (1) abgenommen werden und das gemischte Material durch Vorschieben des Kolbens entleert werden. Dabei kann vorteilhafterweise an der Spitze der Spritze noch eine Vorrichtung eingebaut werden, die das Verlegen der Spritzenspitze (3) durch die Stahlkugel (4) verhindert.After mixing, the cap ( 12 ) at the top ( 3 ) the syringe ( 1 ) are removed and the mixed material is emptied by advancing the piston. In this case, a device can advantageously be installed at the tip of the syringe, which allows the syringe tip to be moved ( 3 ) through the steel ball ( 4 ) prevented.

Die Konstruktion der Spritze ist in den 1 bis 4 dargestellt.The construction of the syringe is in the 1 to 4 shown.

1 zeigt einen Spritzenzylinder (1), der an einem Ende flanschähnliche Fingerhaltevorrichtungen (2) trägt, am anderen Ende eine Ausspritzdüse (3), die kegelig geformt ist und einen relativ weiten Querschnitt hat. Im Inneren des Zylinders befindet sich eine Kugel (4), vorzugsweise aus Stahl. 2 zeigt den dazugehörigen Kolben, der aus einer Kolbenstange (5) besteht, die vorzugsweise einen kreuzförmigen Querschnitt hat. An dem einen Ende der Kolbenstange (5) ist eine Fingerdruckplatte (6) angebracht, am anderen Ende der Kolbenstange ist ein zylindrischer Formkörper (7) mit einer stumpf-kegeligen Spitze angebracht, der sowohl aus Vollmaterial als auch aus einzelnen Kunststoffrippen bestehen kann. Über diesen Formkörper ist ein Kolbenstopfen (8) aus Kunststoff oder Gummi gestülpt, der an seinem äußeren Rand Dichtungsringe (9) trägt, die den Kolben gegen den Zylinder abdichten. Durch den Kolbenstopfen und durch den Formkörper an der Spitze der Kolbenstange verlaufen eine oder mehrere Bohrungen (10) und zwischen Formkörper (7) und Kolbenstopfen (8) kann ein Filterelement (11) angeordnet sein. 1 shows a syringe barrel ( 1 ) that has flange-like finger grips ( 2 ) carries an ejection nozzle at the other end ( 3 ), which is conical in shape and has a relatively wide cross section. Inside the cylinder is a ball ( 4 ), preferably made of steel. 2 shows the associated piston, which comes from a piston rod ( 5 ) exists, which preferably has a cross-shaped cross section. At one end of the piston rod ( 5 ) is a finger pressure plate ( 6 ) attached, at the other end of the piston rod is a cylindrical molded body ( 7 ) with a blunt-tapered tip, which can consist of both solid material and individual plastic ribs. A piston plug ( 8th ) made of plastic or rubber, the sealing rings on its outer edge ( 9 ) that seal the piston against the cylinder. One or more bores run through the piston plug and through the molded body at the tip of the piston rod ( 10 ) and between molded body ( 7 ) and piston plug ( 8th ) a filter element ( 11 ) be arranged.

3 zeigt die montierte Anordnung mit der Verschlusskappe (12) auf der Spritzdüse (3). 3 shows the assembled arrangement with the sealing cap ( 12 ) on the spray nozzle ( 3 ).

4 zeigt vergrößert die Anordnung der Bohrung im Kolbenstopfen und im Formkörper der Kolbenstange. 4 shows enlarged the arrangement of the bore in the piston plug and in the molded body of the piston rod.

Claims (6)

Vorrichtung zur luftfreien Mischung von festen und flüssigen Substanzen, bestehend aus einem Spritzenzylinder, einem Stopfen auf der Spitze dieses Spritzenzylinders und einem Spritzenkolben, dadurch gekennzeichnet, dass der Spritzenkolben im Spritzenzylinder zwar flüssigkeitsdicht, nicht aber luftdicht ist.Device for the air-free mixing of solid and liquid substances, consisting of a syringe barrel, a stopper on the tip of this syringe barrel and a syringe plunger, characterized in that the syringe plunger in the syringe barrel is liquid-tight but not air-tight. Vorrichtung zur luftfreien Mischung von festen und flüssigen Substanzen nach Anspruch 1, dadurch gekennzeichnet, dass der Boden des Spritzenkolbens mit feinen Kanälen perforiert ist, die zwar Luft durchlassen können, nicht aber die zu mischenden Substanzen.Device for the air-free mixing of solid and liquid Substances according to claim 1, characterized in that the bottom of the syringe plunger is perforated with fine channels Can let air pass but not the substances to be mixed. Vorrichtung zur luftfreien Mischung von festen und flüssigen Substanzen nach Anspruch 1, dadurch gekennzeichnet, dass der Spritzenkolben einen Kolbenstopfen aus Kunststoff oder Gummi trägt, dessen Dichtungen gegen den Spritzenzylinder zwar gegen die zu mischenden Flüssigkeiten abdichten, gegen Luft aber durchlässig sind.Device for the air-free mixing of solid and liquid Substances according to claim 1, characterized in that the syringe plunger carries a piston plug made of plastic or rubber, the seals against the syringe barrel against the liquids to be mixed seal, but are permeable to air. Vorrichtung zur luftfreien Mischung von festen und flüssigen Substanzen nach Anspruch 1, dadurch gekennzeichnet, dass der Spritzenkolben einen Kolbenstopfen aus Gummi oder Kunststoff trägt, wobei sowohl der Kolbenboden als auch der Stopfen an mindestens einer Stelle perforiert sind und sich zwischen den Perforationen ein Filtermaterial befindet, dass zwar luftdurchlässig ist, nicht aber für die zu mischenden Substanzen durchlässig ist.Device for the air-free mixing of solid and liquid Substances according to claim 1, characterized in that the syringe plunger carries a piston plug made of rubber or plastic, both the piston crown as well as the plug are perforated in at least one place and there is a filter material between the perforations that air permeable is, but not for the substances to be mixed is permeable. Vorrichtung zur luftfreien Mischung von festen und flüssigen Substanzen nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass im Inneren des Spritzenzylinders eine Kugel, vorzugsweise aus Stahl liegt, die beim Schütteln die im Zylinder befindlichen Substanzen durchmischt.Device for the air-free mixing of solid and liquid substances according to claim 1 to 4, characterized in that in the interior of the syringe barrel is a ball, preferably made of steel, the sub in the cylinder when shaken punch mixed. Vorrichtung zur luftfreien Mischung von festen und flüssigen Substanzen nach Anspruch 5, dadurch gekennzeichnet, dass sich im Spritzenausgang ein Platzhalter befindet, der ein Verschließen des Spritzenausganges durch die Kugel verhindert.Device for the air-free mixing of solid and liquid Substances according to claim 5, characterized in that in Syringe outlet is a placeholder, which is a closure of the Syringe exit prevented by the ball.
DE20216631U 2002-10-28 2002-10-28 Syringe for mixing solids and liquids, e.g. adhesives or bone cement, comprising liquid-tight piston in cylinder which is not air-tight Expired - Lifetime DE20216631U1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813217A1 (en) * 2006-01-30 2007-08-01 Stryker Trauma GmbH Device and method for injecting material and separating mixture components
WO2011021072A1 (en) * 2009-08-20 2011-02-24 Tecres S.P.A. Bone cement mixer
WO2013098805A1 (en) * 2011-12-29 2013-07-04 Omrix Biopharmaceuticals Ltd. Method and device for fast dissolution of solid protein composition
CN106618716A (en) * 2017-02-16 2017-05-10 常州凯耀医疗器械有限公司 Bone cement injector
CN106861540A (en) * 2015-12-07 2017-06-20 贺利氏医疗有限公司 The vacuum mixing device with operating parts and pressure vacuum pump for mixing polymethyl methacrylate bone-cementum

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854977A (en) * 1956-06-15 1958-10-07 Mine Safety Appliances Co Mixing and dispensing device
DE7148104U (en) * 1971-12-21 1972-05-25 Jordana P SYRINGE OR SYRINGE BOTTLE ESPECIALLY FOR HEALING AND HYGIENIC PURPOSES
WO1985004567A1 (en) * 1982-06-14 1985-10-24 Slobodan Tepic Method of preparing and applying a self curing two-component powder/liquid cement
DE3839979A1 (en) * 1988-11-26 1990-08-09 Koerber Karlheinz Bubble-free capsule alginate
DE9011685U1 (en) * 1990-08-10 1991-12-12 THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte, 82229 Seefeld Granule syringe
EP0600580A2 (en) * 1992-11-18 1994-06-08 Ultradent Products, Inc. Syringe apparatus with detachable mixing and delivery tip
DE19949866A1 (en) * 1999-10-15 2001-11-15 Copf Franz Repair material for forming cartilage layer comprises chondrozites and/or chondroplastes and biologically compatible base material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854977A (en) * 1956-06-15 1958-10-07 Mine Safety Appliances Co Mixing and dispensing device
DE7148104U (en) * 1971-12-21 1972-05-25 Jordana P SYRINGE OR SYRINGE BOTTLE ESPECIALLY FOR HEALING AND HYGIENIC PURPOSES
WO1985004567A1 (en) * 1982-06-14 1985-10-24 Slobodan Tepic Method of preparing and applying a self curing two-component powder/liquid cement
DE3839979A1 (en) * 1988-11-26 1990-08-09 Koerber Karlheinz Bubble-free capsule alginate
DE9011685U1 (en) * 1990-08-10 1991-12-12 THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte, 82229 Seefeld Granule syringe
EP0600580A2 (en) * 1992-11-18 1994-06-08 Ultradent Products, Inc. Syringe apparatus with detachable mixing and delivery tip
DE19949866A1 (en) * 1999-10-15 2001-11-15 Copf Franz Repair material for forming cartilage layer comprises chondrozites and/or chondroplastes and biologically compatible base material

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813217A1 (en) * 2006-01-30 2007-08-01 Stryker Trauma GmbH Device and method for injecting material and separating mixture components
WO2007085489A1 (en) * 2006-01-30 2007-08-02 Stryker Trauma Gmbh Device and method for injecting material and separating mixture component
WO2011021072A1 (en) * 2009-08-20 2011-02-24 Tecres S.P.A. Bone cement mixer
CN102470037A (en) * 2009-08-20 2012-05-23 泰克里斯公司 Bone cement mixer
CN102470037B (en) * 2009-08-20 2014-09-24 泰克里斯公司 Bone cement mixer
WO2013098805A1 (en) * 2011-12-29 2013-07-04 Omrix Biopharmaceuticals Ltd. Method and device for fast dissolution of solid protein composition
AU2012360048B2 (en) * 2011-12-29 2017-05-25 Omrix Biopharmaceuticals Ltd. Method and device for fast dissolution of solid protein composition
US10618950B2 (en) 2011-12-29 2020-04-14 Omrix Biopharmaceuticals Ltd. Method and device for fast dissolution of solid protein composition
US11634473B2 (en) 2011-12-29 2023-04-25 Omrix Biopharmaceuticals Ltd. Method and device for fast dissolution of solid protein composition
CN106861540A (en) * 2015-12-07 2017-06-20 贺利氏医疗有限公司 The vacuum mixing device with operating parts and pressure vacuum pump for mixing polymethyl methacrylate bone-cementum
CN106861540B (en) * 2015-12-07 2019-12-27 贺利氏医疗有限公司 Vacuum mixing device for mixing polymethylmethacrylate bone cement with an operating part and a pressure vacuum pump
CN106618716A (en) * 2017-02-16 2017-05-10 常州凯耀医疗器械有限公司 Bone cement injector

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