EP2384820B1 - Système de cartouche et tuyau de sortie pour un tel système de cartouche - Google Patents

Système de cartouche et tuyau de sortie pour un tel système de cartouche Download PDF

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Publication number
EP2384820B1
EP2384820B1 EP11003052.5A EP11003052A EP2384820B1 EP 2384820 B1 EP2384820 B1 EP 2384820B1 EP 11003052 A EP11003052 A EP 11003052A EP 2384820 B1 EP2384820 B1 EP 2384820B1
Authority
EP
European Patent Office
Prior art keywords
cartridge
cartridges
mixing space
cartridge system
closure
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.)
Not-in-force
Application number
EP11003052.5A
Other languages
German (de)
English (en)
Other versions
EP2384820A1 (fr
Inventor
Sebastian Vogt
Hubert Büchner
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.)
Heraeus Medical GmbH
Original Assignee
Heraeus Medical GmbH
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Filing date
Publication date
Application filed by Heraeus Medical GmbH filed Critical Heraeus Medical GmbH
Publication of EP2384820A1 publication Critical patent/EP2384820A1/fr
Application granted granted Critical
Publication of EP2384820B1 publication Critical patent/EP2384820B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • 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
    • B01F35/50—Mixing receptacles
    • B01F35/52—Receptacles with two or more compartments
    • B01F35/522—Receptacles with two or more compartments comprising compartments keeping the materials to be mixed separated until the mixing is initiated
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7174—Feed mechanisms characterised by the means for feeding the components to the mixer using pistons, plungers or syringes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B05C17/00513—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the thread type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00596—The liquid or other fluent material being supplied from a rigid removable cartridge having no active dispensing means, i.e. the cartridge requiring cooperation with means of the handtool to expel the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/325—Containers having parallel or coaxial compartments, provided with a piston or a movable bottom for discharging contents
    • 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

Definitions

  • the invention relates to a cartridge system for mixing and applying a mixed material, in particular a medical cement, comprising two mutually parallel cartridges and a mixing chamber with an outlet opening, wherein the cartridges each comprise at least one opening in the cartridge walls, which connect the cartridges with the mixing chamber, and the cartridges each comprise a delivery piston for expelling output components of the mix from the cartridges through the openings.
  • Cartridge systems for mixing and applying a mix may consist of several components and are intended to ensure safe storage and secure closure for components in at least two cartridges prior to use. Immediately before the application of the mix, the cartridge system should be safe and easy to open, with a synchronous opening of the individual cartridges is desirable.
  • Cartridge systems for the application of pasty two- or multi-component systems have been known for decades. Examples are the documents CH 669 164 A5 . EP 0 607 102 A1 . EP 0 236 129 A2 . DE 3 440 893 A1 . US 4,690,306 A . US 2009/062808 A1 . EP 0 787 535 A1 . WO 2006/005 206 A1 . EP 0 693 437 A1 . EP 0 294 672 A1 . EP 0 261 466 A1 and EP 2 008 707 A1 called.
  • a simple but very effective principle is to close the cartridge head with a rotatable shutter ( EP 0 431 347 A1 . DE 20 17 292 A . US 3,215,298 A ).
  • the closure is unscrewed before application.
  • a discharge tube is screwed into a thread on the cartridge head or fixed with a thread simulating pin system.
  • the disadvantage of this is that the user has to perform twice rotational movements until the paste material can be expelled.
  • the closure is unscrewed and the discharge tube is placed later. Between the opening of the cartridges and the insertion of the dispensing tube, especially when volatile substances are contained in the pastes, components of the pastes may evaporate.
  • the closure currently used very frequently is based on the fact that the wall material of the cartridge is made very thin at the cartridge head, so that this wall can easily be pierced. When piercing particles are removed from the wall, which thereby enter the pasty material.
  • the back of the cartridges is usually closed by moving pistons designed to expel the pastes during application.
  • aluminum cartridges can be used, which are closed with plastic piston and are pressed over the sealing aluminum cylinder, which are closed on one side, for sealing.
  • the aluminum cylinder which is closed on one side, is moved together with the piston with the help of extrusion guns to the front in the direction of the cartridge head and the paste is expelled.
  • contact of pastes with aluminum surfaces can be problematic.
  • the polymerizable paste systems can not be used, it is possible to sterilize with the gas ethylene oxide.
  • a problem with paste systems containing monomers with high vapor pressure is in such a sterilization with gas, that after the actual sterilization, in the removal of the residual ethylene oxide by the action of vacuum, some of the monomers in the cartridges evaporated, while a gas phase form in the cartridges and thus can exert pressure against the pistons. This means that the pistons are undesirably moved in the direction of the cartridge bottoms and in extreme cases are expelled from the cartridges so that the pastes can flow out.
  • polymethyl methacrylate bone cements have been used in medicine for the permanent mechanical fixation of total joint endoprostheses. These are based on powder-liquid systems. Polymethyl methacrylate bone cements based on the use of cement pastes have also recently been proposed ( DE 10 2007 050 762 B3 . DE 10 2008 030 312 A1 . DE 10 2007 052 116 A1 ). For such cements so far no suitable cartridge systems have been proposed.
  • An essential ingredient of pasty polymethyl methacrylate bone cements is the monomer methylmethacrylate. This monomer evaporates easily and has a fairly high vapor pressure at room temperature. When using methylmethacrylate-containing pastes, it is therefore essential to note that in the event of vacuum, as in the case of degassing in the context of sterilization with ethylene oxide, the cartridge pistons in the cartridges are moved through the evaporating methyl methacrylate and, in extreme cases, can be expelled from the cartridges.
  • a generic cartridge system is based on the packaging of pasty multicomponent systems in tubular bags ( WO 2010/006455 A1 ).
  • the sealed tubular bag are introduced into cartridges.
  • Tubular bags have the advantage that they are suitable for packaging pastes containing volatile components.
  • Tubular bags made of composite materials, such as aluminum composite bags, are particularly suitable for this purpose.
  • the opening of the tubular bag is made by cutting, which rotate when the dispensing tube is screwed in. As the blades rotate, the bags are cut open to provide openings in the cartridges for dispensing the contents. The pasty bag contents are then squeezed through these openings in the cartridges in the direction of the static mixer.
  • a discharge device which has one or more sealing elements which are pushed out over a pressure built up in the chambers.
  • the chambers are opened when a sufficient pressure is built up via pistons, which are advanced into the chambers.
  • the object of the invention is therefore to provide a cartridge system that is simple and inexpensive to manufacture, but at the same time ensures a safe and easy opening of the cartridges.
  • a secure storage and a secure closure for paste-like components in at least two cartridges before their use should be ensured.
  • the cartridge system should be able to be opened safely and quickly with as little effort as possible in order to enable simple application during operations and thus reduce or overcome the problems of the previous cartridge systems and their closure systems. So it should be developed a closure system, which closes cartridges for several components safely and allows a quick uncomplicated opening of the individual cartridges. When placing the dispensing tube as possible operator errors of the user should be avoided.
  • a closure arranged displaceably in the mixing chamber is arranged such that it closes the openings of the cartridges in a starting position and that the openings for the mixing chamber are at least partially open in an end position of the displaceable closure, wherein the displaceable Closure is displaceable from the starting position to the end position.
  • the sliding closure is a cavity body open on both sides.
  • a discharge tube is displaceably arranged in the interior of the mixing chamber, wherein the discharge tube comprises an outlet tube tip facing the outlet opening or extending out of it and an extension facing the cartridge bottom which is completely closed in the direction of the cartridge bottom.
  • the extension includes openings in the sidewalls facing the cartridge walls, with a continuous connection extending inside the discharge tube from the openings to the discharge tube tip in which a static mixer is preferably located, the outer diameter of the extension being less than or equal to the inner diameter of the mixing space and greater than the inner diameter of the closure, while the remainder of the discharge tube located inside the mixing space has a smaller outer diameter than the inner diameter of the closure.
  • the mixing chamber is a hollow body, in particular a hollow cylinder, with hollow body walls, wherein the openings in the cartridges extend through the hollow body wall into the mixing space.
  • the mixing space between the cartridges is arranged, in particular such that the cartridge walls are partially executed with the hollow body wall in one.
  • the invention also proposes that the mixing space is arranged parallel to the cartridges.
  • a movable rod is arranged parallel to the delivery piston in the interior of the mixing chamber, which is fixedly connected to the delivery piston via at least one web and / or a plate, wherein the rod on the outlet opening side facing a locking means and in the mixing chamber a counter-locking means is mounted, which cooperates with the locking means of the rod such that a movement of the rod out of the mixing chamber and thus the delivery piston from the cartridges out clearly difficult, in particular prevented.
  • the cartridge walls and / or the mixing chamber walls have at least one slot starting at the bottom of the cartridge, which is arranged parallel to the cartridge axis, wherein the width of the slot or slots for receiving the or the webs is sufficient and the length of the slot or slots in particular extends to at least half of the cartridge length.
  • a stop preferably in the form of pins or webs, is arranged, which limits the movement of the displaceable closure towards the center of the mixing chamber and thereby the end position of the displaceable closure is defined.
  • displaceable closure is arranged in press fit in the mixing chamber.
  • displaceable closure is displaceable in the longitudinal direction of the mixing space.
  • the invention also proposes that the delivery pistons seal the cartridges tightly.
  • sealing means in particular sealing rings, are arranged at the openings of the cartridges to the mixing chamber.
  • the sealing means are intended to improve the sealing effect of the displaceable closure with respect to the openings in the cartridges, if the sealing effect of the displaceable closure by the interference fit should not be sufficient.
  • sealing means are arranged around the openings to the mixing space between the inner wall of the mixing chamber and the displaceable shutter in the starting position.
  • a plate and / or at least one web is firmly connected on the bottom side with the delivery piston, and a locking means is connected to the plate and / or the at least one web, wherein the locking means extends into the mixing chamber and there in a Gegenarret istsstoff engages, so that movement of the plate and / or the at least one web and the delivery piston is blocked in the direction of the cartridge bottom and in the interior of the mixing chamber a Entarretiervoriques is provided which is fixedly connected to the sliding closure, so that when moving the shiftable Closure in his Endpostition, a release of the locking means takes place, so that a movement of the plate and / or the at least one web and the delivery piston in the direction of the cartridge bottom is possible.
  • the discharge pipe comprises a static mixer.
  • the discharge pipe is fixedly connected to the sliding closure, so that both form a common part of the Kartsuchenssystems.
  • This cartridge system and the associated closure system of the cartridge system are based on the surprising finding that a reliable and easy-to-use opening of the cartridge system is made possible by means of a movable shutter, without having to destroy a component such as the cartridge wall when opening the cartridges, so that no contamination of the components to be mixed or of the mixed material with the material of the component is to be feared.
  • This enables a secure closure of the multi-component cartridges and a quick, uncomplicated, simultaneous opening of the individual cartridges of the system.
  • the placement of the dispensing tube causes a forced, synchronous opening of the cartridges, so that the cartridges are opened only when the dispensing tube is mounted, thereby avoiding potential operator errors of the user.
  • Such a cartridge system and such a closure system can be made entirely from inexpensive plastic injection molded parts.
  • the cartridge system makes it possible to move the pistons synchronously in the cartridges when force is applied in the direction of the cartridge system head and thus to evenly press out the pastes so that the mixing ratio of the pastes to one another is ensured.
  • a further simplification and ensuring the operability of such a cartridge system results from the fact that a movement of the delivery piston can be reliably prevented under the influence of vacuum.
  • the mixing space is to be understood as meaning the area which is located between the at least two cartridges and the areas adjacent thereto. It extends from the cartridge bottom, ie the rear, bottom-side part of the cartridge system, to the outlet opening on the cartridge system head on the front side of the cartridge system, ie also includes the interior of the cartridge system head. Not everywhere in the mixing chamber, the mixing of the starting components of the mix has to be done, but otherwise only in parts of the same.
  • a mixing chamber which is connected with hoses to the cartridges, and therefore the mixing chamber is not in the geometrical sense exactly between the cartridges is also according to the invention.
  • a closure is to be understood, which is initially in the initial position by a fixed connection to the walls of the gap, for example, by thin bridges, if this solid compound has predetermined breaking points, which at a force Break on the closure and thus allow the movement of the closure under force.
  • the fixed connection or the fixed connections with the predetermined breaking points are provided from the openings of the cartridges in the direction in which the closure, when opening moves to an entry of particles of the fractures into the mix or into the starting components of the mix.
  • the end position in the sense of the invention is not to be understood as a final end position.
  • the displaceable closure can also be moved from the end position to the starting position and then the cartridges of the cartridge system can be refilled.
  • the cartridge system is reusable.
  • the starting position like the end position, is to be understood as one of at least two positions into which the displaceable shutter is displaceable.
  • FIG. 1 shows an embodiment of a cartridge system according to the invention in cross-sectional view.
  • the discharge tube (380) is integrated in the closed position of the closure (360) in the mixing chamber (320) of the cartridge system.
  • the discharge pipe (380) from the direction of the cartridge bottom (333) in the direction of the outlet opening (322) is pressed.
  • the closure (360) is a hollow cylinder which press-tightly closes the openings (340) in the cartridge walls (332) and thus the cartridges (330) to the mixing space (320) in its initial position.
  • the inner diameter of the shutter (360) is larger than the outer diameter of the front part of the discharge pipe (380) facing the discharge pipe tip (381).
  • the apertured (385) extension (386) has an outer diameter greater than the inner diameter of the closure (360).
  • a step is provided between the extension (386) and the front part of the discharge pipe (380).
  • the extension (386) is a hollow cylinder with openings (385) open towards the discharge tube tip (381) and fully closed in the direction of the cartridge bottom (333).
  • a static mixer (388) Inside the discharge tube (380) is a static mixer (388).
  • the discharge tube (380) When a force is applied to the mixing chamber (320) of this cartridge system from the direction of the cartridge bottom (333), for example with compressed air, the discharge tube (380) is pushed in the direction of the cartridge system head (350). Once the leading edge of the extension (386) facing the dispensing tube tip (381) strikes the cartridge bottom end of the closure (360), the dispensing tube (380) also shifts the closure (360) into the cartridge system head (350). The movement of the closure (360) is limited by a stop (374) located at the top of the cartridge system head (350). In the end position of the closure (360), the latter completely releases the openings (340) and bears against the stop (374). At the same time, the openings (385) of the extension (386) cover the openings (340).
  • the static mixer (388) By means of the static mixer (388), the contents of the cartridges (330) in the discharge tube (380) are mixed to form a mix. Finally, the mixed mix is pushed out of the cartridge system by the discharge tube tip (381).
  • the shutter (360) is not pushed toward the cartridge bottom (333), but toward the cartridge system head (350) to expose the openings (340).
  • the delivery pistons (362) may be interconnected via a web (not shown) such that the movement of the delivery pistons (362) is synchronized.
  • displaceable discharge tube (380) in the mixing chamber (320) in the longitudinal direction of the cartridges (330) displaceable discharge tube (380) is located, which contains a static mixer (388) and the cartridge on its side facing away from the cartridge system head (350) side of the outer diameter of the discharge tube (380) is smaller than the inner diameter of the closure (360) in the form of an open hollow cylinder, that on its side facing away from the cartridge system head (350) a hollow, perforated on the lateral surface cylinder as extension (386) is arranged on the the cartridge head (350) facing away from the cartridge is sealed gas-tight whose outer diameter is equal to the inner diameter of the mixing chamber (320), and that in the mixing chamber (320) above the openings (340) of the cartridges (330) pins and / or webs as a stop ( 374) having an inner diameter greater than or equal to the inner diameter of the sliding shutter (360).
  • the discharge pipe (380) can be moved from the direction of the cartridge bottom (333) in the direction of the cartridge system head (350) by applying compressed gas.
  • the displaceable closure (360) designed as a hollow cylinder is moved in the direction of the cartridge system head (350) until it abuts against webs or pins (374) on the cartridge system head (350).
  • This movement of the hollow cylinder (360) towards the cartridge system head (350) exposes the openings (340) of the cartridges (330).
  • the perforations (385) of the hollow, perforated cylinder (386) move towards the openings (340) of the cartridges (330). This will open the cartridges (330).
  • the movement of the discharge tube (380) may also be by mechanical force via the movement of rods, screws or bolts.
  • FIG. 2 shows a plan view of a cartridge system (1) on the cartridge system head (50).
  • a look into the outlet opening (22) shows the mixing chamber walls (21), the fastening means (51) and in the middle the displaceable closure (60).
  • the cartridge heads (31) of the underlying cartridges (30) (in FIG. 2 not recognizable) attached.
  • FIG. 3 shows a plan view of a cartridge system (1) from the direction of the cartridge bottom (33).
  • the mixing space (20) bounded by the mixing space walls (21) becomes on both sides of the cartridges (30), of which only the cartridge walls (32) and the delivery pistons (62) can be seen flanked.
  • mixing space (20) In the middle of the open in this direction mixing space (20) is the rod (70) which projects into the interior of the mixing chamber (20).
  • the rod (70) and the delivery piston (62) are fixedly connected to each other by the web (65).
  • a slot (75) is provided in the walls (21, 32) of the mixing chamber (20) and the cartridges (30).
  • FIG. 4 shows a cross-sectional view of a cartridge system (1).
  • the mixing chamber (20) which is delimited by the mixing chamber wall (21).
  • the delivery pistons (62) are constructed as hollow cylinders closed on both sides.
  • the rod (70) is arranged inside the mixing chamber (20).
  • the rod (70) and the delivery pistons (62) are interconnected by the web (66).
  • the cartridges (30) with the mixing chamber (20) connecting walls (21, 32) slots (75) are provided which allow movement of the web (66) and the web (65) inside the cartridge system (1).
  • FIG. 5 shows a side view of a cartridge system. Between the two cartridges (30) of the mixing chamber (20) is arranged. Actually, only the mixing chamber walls (21) or the cartridge walls (32) would be visible from the outside. On the head side of the cartridge system (1) of the cartridge system head (50) is arranged, while the cartridge bottom (33) of the web (65) is arranged.
  • FIG. 6 shows a plan view of a cartridge bottom of an alternative cartridge system for mixing a mixed material consisting of three components.
  • the cartridge system comprises three cartridges, of which only the cartridge walls (132) and the delivery pistons (162) can be seen from the direction of the cartridge bottom. Between the cartridge walls (132) is the mixing chamber (120), in the middle of which a rod (not shown) is arranged. The rod and the delivery piston (162) are fixedly connected to each other with webs (165). The entire cartridge system is enclosed by an additional sheath (179).
  • All described embodiments can be easily transferred to a cartridge system with three, four or more cartridges for mixing a mix with three, four or even more components.
  • the cartridges are expediently not to be designed with a cylindrical shape.
  • cartridge system is understood to mean cartridges which are constructed from two, three, four, five or more cartridges (30, 330), the individual cartridges (30, 330) being arranged parallel to one another.
  • the cartridges (30, 330) can be cylindrical hollow bodies. These are so-called side-by-side cartridges.
  • the cartridges may already be filled with starting components for a mix to be mixed, but may also be empty, d. H. that they are still with content, such. B. cartridges inserts must be filled.
  • the displaceable closure (60, 360) preferably has a closed lateral surface.
  • the advantage of the cartridge system is that all openings (40, 340) in the cartridges (30, 330) are closed only by a displaceable closure (60, 360).
  • This has a slightly larger cross section than the mixing chamber (20, 120, 320). This means that the lateral surface of the displaceable closure (60, 360) is pressed against the inner wall of the mixing space (20, 120, 320) or its walls (21).
  • the slidable closure (60, 360) lies over the openings (40, 340) of the cartridges (30, 330), they are closed.
  • the displaceable closure (60, 360) completely overlaps the openings (40, 340) in such a way that a closed lateral surface which is sufficient for the seal abuts the inner wall (21) of the mixing space (20, 120, 320).
  • the seal is achieved due to the contact pressure by the close contact of the lateral surface of the displaceable closure (60, 360) with the inner wall (21) of the mixing space (20, 120, 320).
  • the cartridges (30, 330) are closed with delivery pistons (62, 362), wherein the delivery pistons (62, 362) are connected to one another at the side facing away from the cartridge bottom (333) by webs (65,) or a plate (695).
  • the displaceable closure (60, 360) is preferably designed as a hollow cylinder, wherein it is particularly preferred that the hollow cylinder is closed over the entire cross section only on the side facing the cartridge head (31).
  • the perforated extension (386) arranged on the discharge tube (380) or on the displaceable closure (60, 360) is moved in the longitudinal direction of the mixing space (20, 120, 320) and thus the displaceable closure (60, 360 ) is displaced along the mixing space (20, 120, 320), with the openings (385) of the perforated extension (386) being pushed over the openings (40, 340) of the cartridges (30, 330).
  • displaceable closure (360) it is also possible to form the displaceable closure (360) as a hollow oval in cross section or in a regular or irregular polygonal cross section. 360.
  • the slidable closure (360) may be made of one or more materials, depending on the chemical stability requirements of the pastes and the desired slip characteristics.
  • pins, webs or a ring can be arranged as holding means (374) on the inner wall of the mixing chamber (20, 320). They limit the maximum axial displacement of the slidable closure (60, 360) towards the outlet (322).
  • the elongated perforated hollow body (86, 386) has a length in the longitudinal direction of the cartridges (30, 330) greater than or at least equal to the length of the openings (40, 340) of the cartridges (30, 330). This ensures that the entire openings (40, 340) of the cartridges (30, 330) can be exposed when attaching the dispensing tube (380). Thus, an exposure of the openings (40, 340) over the entire cross section is possible.
  • the holding means (374) are spaced in the longitudinal direction of the cartridges (330) from the openings (40, 340) of the cartridges (30, 330) of at least the length of the extension (386) or of the closure (60 , 360).
  • the holding means (374) are necessary so that when displacing the pastes, the displaceable closure (60, 360) can not be moved further than was previously necessary in the opening of the cartridges (30, 330).
  • the cartridges (330) may include one or more slots from the cartridge bottom (333) at least half the length of the cartridge aligned parallel to the cartridge axis such that the mixing chamber walls also include slots aligned in the longitudinal direction of the cartridges (330) of equal length how the slots (75) of the cartridges (30, 330) have, wherein the number of slots (75) in the mixing space walls (21) is equal to the number of slots (75) in the cartridges (30, 330) and that the slots (75) of the mixing chamber walls (21) are located above the slots (75) of the cartridges (30, 330) so that the interiors of the cartridges (30, 330) are connected to the mixing space (20, 120, 320).
  • the webs 65, 66, 165) have a cross section smaller than the slots (75). This means that when the cartridges (30, 330) are pressed out, the webs (65, 66, 165) can be moved through the slots (75) in the cartridges (30, 330) in the direction of the cartridge system head (50, 350).
  • the slots (75) serve as a guide for the webs (65, 66, 165) and thus for the delivery piston (62, 162, 362bei the extrusion movement in the direction of the cartridge head
  • the cartridge system according to the invention is used for packaging, storage and application of pasty bone cements, dental multicomponent preparations, adhesives, sealants, cosmetics and foodstuffs. Particularly suitable is the multi-component cartridge system for the storage and application of paste-shaped polymethyl methacrylate bone cements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Dispersion Chemistry (AREA)
  • Coating Apparatus (AREA)
  • Package Specialized In Special Use (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)

Claims (11)

  1. Système de cartouche pour mélanger et appliquer un produit de mélange, en particulier un ciment médical, comprenant deux cartouches (30,330) disposées parallèlement entre elles et un espace de mélange (20,320) comprenant une ouverture de sortie (322), dans lequel les cartouches (30,330) comprennent respectivement au moins une ouverture (340) dans les parois de cartouche (32,332) qui relie les cartouches (30,330) à l'espace de mélange (20,320), et les cartouches (30,330) comprennent respectivement un piston de transport (62,362) pour faire sortir les composantes de départ du produit de mélange hors des cartouches (30,330) à travers les ouvertures (340), dans lequel
    un bouchon (360) est disposé mobile à l'intérieur de l'espace de mélange (32,320), de telle façon qu'il ferme les ouvertures (340) des cartouches (30,330) dans une position de départ et que les ouvertures (340) vers l'espace de mélange (20,320) sont ouvertes au moins par tronçons dans une position de fin de course du bouchon (360) mobile, dans lequel le bouchon (360) mobile est mobile de la position de départ à la position de fin de course, caractérisé en ce que
    le bouchon (360) mobile est un corps creux ouvert de chaque côté, et un tube de distribution (380) est disposé mobile à l'intérieur de l'espace de mélange (20,320), dans lequel le tube de distribution (380) comprend une pointe de tube de distribution (381) ouverte tournée vers l'ouverture de distribution (322) ou sortant de celle-ci et un prolongement (386) tourné en direction du fond de cartouche (333) qui est fermé complètement en direction du fond de cartouche (333), et le prolongement (386) comprend des ouvertures (385, 485) dans les parois latérales tournées vers les parois de cartouche (332), dans lequel à l'intérieur du tube de distribution (380) s'étend une liaison traversante des ouvertures (385, 485) jusqu'à la pointe du tube de distribution (381), dans lequel le diamètre extérieur du prolongement (386, 486) est inférieur ou égal au diamètre intérieur de l'espace de mélange (20,320) et supérieur au diamètre intérieur du bouchon (360), tandis que le reste du tube de distribution (380) reposant à l'intérieur de l'espace de mélange (20,320) a un plus petit diamètre extérieur que le diamètre intérieur du bouchon (360).
  2. Système de cartouche selon la revendication 1, caractérisé en ce que l'espace de mélange (20,320) est un cylindre creux avec des parois de corps creux, dans lequel les ouvertures (340) dans les cartouches (30,330) s'étendent à travers la paroi de corps creux (21) jusque dans l'espace de mélange (20, 320).
  3. Système de cartouche selon la revendication 1 ou 2, caractérisé en ce que l'espace de mélange (20,320) est disposé entre les cartouches (30,330), en particulier de telle façon que les parois de cartouche (32,332) sont conçues d'une seule pièce avec les parois de corps creux, par tronçons.
  4. Système de cartouche selon l'une des revendications précédentes, caractérisé en ce que
    l'espace de mélange (20, 320) est disposé parallèlement aux cartouches (30, 330).
  5. Système de cartouche selon la revendication 4, caractérisé en ce qu'une barre mobile (70) est disposée à l'intérieur de l'espace de mélange (20, 320), parallèlement aux pistons de transport (62, 362), laquelle est reliée fixement aux pistons de transport (62, 362) par au moins une branche (65, 66) et/ou un plateau, dans lequel la barre (70) comprend un moyen d'encliquetage sur le côté tourné vers l'ouverture de sortie (22, 322) et dans l'espace de mélange (20, 320), un contre-moyen d'encliquetage est disposé qui coopère avec le moyen d'encliquetage de la barre (70) de telle façon qu'un mouvement de la barre (70) hors de l'espace de mélange (20, 320) et conjointement des pistons de transport (62, 362) hors des cartouches (30, 330) est rendu nettement difficile, est en particulier empêché.
  6. Système de cartouche selon la revendication 5, caractérisé en ce que les parois de cartouche (332) et/ou les parois de l'espace de mélange présentent au moins une fente (75) commençant sur le fond de cartouche (333) qui est disposée parallèlement à l'axe de cartouche, dans lequel la largeur de la ou des fente(s) (75) suffit pour recevoir la ou les branche(s) (65, 66, 165) et en particulier la longueur de la ou des fente(s) (75) va au moins en particulier jusqu'à la moitié de la longueur de cartouche (76).
  7. Système de cartouche selon l'une des revendications précédentes, caractérisé en ce
    qu'une butée (374), de préférence ayant la forme de pivots ou de branches, est disposée dans l'espace de mélange (20, 320), laquelle délimite le mouvement du bouchon (360) mobile dans l'espace de mélange (20, 320) et définit ainsi la position de fin de course du bouchon (360) mobile.
  8. Système de cartouche selon la revendication 7, caractérisé en ce que la butée (374) est prévue dans la tête du système de cartouche (350), en particulier au niveau de l'ouverture de sortie (322), et que les pistons de transport (62, 162, 362) et/ou le tube de distribution (380) peu(ven)t être alimenté(s) en air comprimé.
  9. Système de cartouche selon l'une des revendications précédentes, caractérisé en ce que
    le bouchon (360) mobile est disposé adapté par compression dans l'espace de mélange (20, 120, 320) et/ou est mobile dans le sens longitudinal de l'espace de mélange (20, 120, 320).
  10. Système de cartouche selon l'une des revendications précédentes, caractérisé en ce
    qu'un plateau et/ou au moins une branche (65,165) est/sont relié(e)(s) fixement par le fond avec les pistons de transport (62, 162, 362), et un moyen de blocage (70, 71) est relié au plateau et/ou à l'au moins une branche (65,165), dans lequel le moyen de blocage (70, 71) va jusque dans l'espace de mélange (20,120, 320) et y met en prise un contre-moyen de blocage (72), de sorte qu'un mouvement du plateau et/ou de l'au moins une branche (65, 165) et des pistons de transport (62, 162, 362) en direction du fond de cartouche (33, 333) est bloqué et à l'intérieur de l'espace de mélange (20,120, 320), il est prévu un moyen de déblocage (691) qui est relié fixement au bouchon (60, 360) mobile de telle façon que lorsque le bouchon (60, 360) mobile est poussé dans sa position de fin de course, il se produit un déblocage du moyen de blocage (70, 71), de sorte qu'un mouvement du plateau et/ou de l'au moins une branche (65,165) et des pistons de transport (62,162, 362) en direction du fond de cartouche (33, 333) est possible.
  11. Système de cartouche selon l'une des revendications précédentes, caractérisé en ce que
    le tube de distribution (380) comprend un mélangeur statique (388).
EP11003052.5A 2010-05-04 2011-04-12 Système de cartouche et tuyau de sortie pour un tel système de cartouche Not-in-force EP2384820B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010019217.1A DE102010019217B4 (de) 2010-05-04 2010-05-04 Kartuschensystem

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EP2384820A1 EP2384820A1 (fr) 2011-11-09
EP2384820B1 true EP2384820B1 (fr) 2016-09-07

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EP (1) EP2384820B1 (fr)
JP (1) JP5502800B2 (fr)
CN (1) CN102241304B (fr)
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JP5502800B2 (ja) 2014-05-28
EP2384820A1 (fr) 2011-11-09
CN102241304B (zh) 2014-07-16
CA2737672A1 (fr) 2011-11-04
DE102010019217A1 (de) 2011-11-10
DE102010019217B4 (de) 2014-01-16
AU2011201857A1 (en) 2012-03-01
AU2011201857B2 (en) 2013-10-17
US9095871B2 (en) 2015-08-04
US20110272436A1 (en) 2011-11-10
CA2737672C (fr) 2013-06-25
CN102241304A (zh) 2011-11-16
JP2011235961A (ja) 2011-11-24

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