EP3383307A1 - Misch- und applikationssystem für ein dentalpräparat - Google Patents
Misch- und applikationssystem für ein dentalpräparatInfo
- Publication number
- EP3383307A1 EP3383307A1 EP16736859.6A EP16736859A EP3383307A1 EP 3383307 A1 EP3383307 A1 EP 3383307A1 EP 16736859 A EP16736859 A EP 16736859A EP 3383307 A1 EP3383307 A1 EP 3383307A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- application
- mixing
- capsule
- piston
- chamber
- 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.)
- Withdrawn
Links
- 238000002156 mixing Methods 0.000 title claims abstract description 359
- 238000002360 preparation method Methods 0.000 title claims description 10
- 239000002775 capsule Substances 0.000 claims abstract description 421
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 44
- 230000008569 process Effects 0.000 claims abstract description 31
- 238000012546 transfer Methods 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 101
- 238000010168 coupling process Methods 0.000 claims description 101
- 238000005859 coupling reaction Methods 0.000 claims description 101
- 239000012530 fluid Substances 0.000 claims description 99
- 230000005540 biological transmission Effects 0.000 claims description 93
- 238000007789 sealing Methods 0.000 claims description 50
- 239000011888 foil Substances 0.000 claims description 34
- 230000033001 locomotion Effects 0.000 claims description 25
- 239000012190 activator Substances 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 14
- 238000013022 venting Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 230000003313 weakening effect Effects 0.000 claims description 7
- 230000000670 limiting effect Effects 0.000 claims description 6
- 238000010008 shearing Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 abstract 4
- 239000005548 dental material Substances 0.000 description 11
- 239000003570 air Substances 0.000 description 10
- 229940023487 dental product Drugs 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 230000036961 partial effect Effects 0.000 description 8
- 238000005192 partition Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 239000002639 bone cement Substances 0.000 description 4
- 239000000316 bone substitute Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000011017 operating method Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/0026—Syringes or guns for injecting impression material; Mixing impression material for immediate use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/60—Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/60—Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
- A61C5/62—Applicators, e.g. syringes or guns
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/60—Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
- A61C5/66—Capsules for filling material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/60—Devices specially adapted for pressing or mixing capping or filling materials, e.g. amalgam presses
- A61C5/68—Mixing dental material components for immediate application to a site to be restored, e.g. a tooth cavity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C2204/00—Features not otherwise provided for
- A61C2204/002—Features not otherwise provided for using batteries
Definitions
- the present invention relates to a mixing and application system for producing and discharging a mixed product of two components, in particular a dental preparation, a bone cement or a bone substitute.
- the present invention also relates to a mixing and application capsule for use in such a mixing and application system and to a method for producing a mixed product with such a mixing and application system.
- Such a capsule usually contains a mixing chamber, in which a powdery first component of the dental preparation is received.
- the capsule also contains a fluid chamber in which a fluid second component of the dental preparation is received.
- the fluid second component is first transferred by means of a pair of pliers or manually from the fluid chamber into the mixing chamber.
- the capsule is then placed in a shaker to mix the two components together to produce the mixed product.
- the capsule is removed from the shaker and placed in a pair of pliers. With the help of this forceps, the finished mixed product is then applied to the desired location, for example, in a cavity to be filled a tooth.
- a mixing and application capsule of the aforementioned type is disclosed, for example, in WO 00/23002 A1.
- the capsule has a mixing chamber in which a hollow application piston is slidably disposed.
- the hollow application piston forms a fluid chamber in which in turn a stopper is slidably disposed.
- a powdery first component of a product to be produced is received, and in the fluid chamber, a liquid second component of the product is added.
- the stopper is pressed by hand into the application flask.
- the liquid second component is transferred into the mixing chamber with the powdery first component.
- the capsule is then placed in a shaker to mix the components. Finally, the finished product is discharged with a known discharge tongs.
- the present invention thus provides a mixing and application system.
- This is designed for use with a mixing and application capsule.
- a mixing and application capsule suitable for this purpose has a capsule housing and an application piston displaceably arranged in the capsule housing along a longitudinal axis.
- the mixing and application system has:
- a handpiece with a receptacle for the mixing and application capsule and with a feed mechanism for advancing the application piston in the capsule housing along a longitudinal axis;
- the handpiece has a transmission mechanism for transmitting the torsional vibrations from the torsional vibration drive to the capsule housing of a mixing and application capsule received in the handpiece. In this way, an extremely simple handling of the mixing and application capsule is made possible.
- the mixing and application capsule is inserted into the handpiece. Then, the feed mechanism in the handpiece can be activated a first time to transfer a fluid second component from a fluid chamber of the capsule into a mixing chamber of the capsule with a (in particular pulverulent) first component (or the transfer of the fluid second component into the mixing chamber occurs otherwise, depending on the design of the capsule).
- the torsional vibration drive is activated to set the capsule housing in torsional vibrations.
- the two components are mixed in the mixing chamber due to their inertia.
- the finished mixed product is discharged from the capsule with the aid of the feed mechanism.
- the capsule needs to be used only once in the handpiece. It remains in the handpiece throughout the mixing and dispensing process and does not need to be transferred between different equipment.
- a mixing and application system of this type can alternatively be used with capsules containing only a single component, or in which the components are mixed only after they have left the capsule, for example in a static mixer arranged outside the capsule. In this case, of course, eliminating the transfer of the fluid second component in the mixing chamber and the mixing of the components.
- the torsional vibration drive can remain functionless, or it can take on other tasks, such as the task of homogenizing the component (s) in the capsule, or the task of rotating the capsule housing to read a data carrier on the capsule, as follows will be described in more detail.
- the mixing and application system can thus be used with a variety of different types of capsules.
- the mixing and application system comprises a base station with a receptacle for the handpiece.
- the torsional vibration drive is then preferably arranged in or at the base station.
- the torsional vibration drive can also be arranged in or on the handpiece.
- a base station makes handling easier. When not in use, the handpiece can easily be kept in the base station.
- the base station can simultaneously be designed as a charging station for a rechargeable energy store (in particular a rechargeable battery) in the handpiece.
- a rechargeable energy store in particular a rechargeable battery
- the handpiece can be made substantially more compact and lighter in weight than when the torsional vibration drive is located in or on the handpiece. This is advantageous because the torsional vibration drive can be relatively large and heavy.
- the torsional vibration drive in a component with a relatively large mass (more precisely: a large moment of inertia) is held or even has a large moment of inertia, because in this way make the stator vibrations of the torsional vibration drive less disturbing due to the reaction forces ,
- the base station can in particular be designed to be parked on a flat work surface.
- the receptacle for the handpiece is preferably open at the top, if the base station is intended to be on a flat work surface.
- the handpiece is preferably receivable upright in the base station, i. the longitudinal axis is preferably substantially vertical when the handpiece is properly received in the base station, or at an angle of at most 45 °, preferably at most 30 ° to the vertical.
- the mixing and application capsule is preferably located at the upper end of the handpiece when the handpiece is received in the base station.
- the mixing and dispensing system can be used for producing a dental preparation, for example a tooth filling, but can also be used for the preparation of other two-component mixtures for medical or non-medical use, for example a bone cement or bone substitute material. It can also be used to discharge a product that consists only of a single component, in which case a mixing process can be omitted.
- the feed mechanism may in particular comprise:
- a piston rod adapted to act on the application piston
- a gear to convert the rotational movement of the drive motor in an axial feed movement of the piston rod along the longitudinal axis.
- the handpiece may also include energy storage for powering the drive motor (e.g., a battery, particularly a rechargeable battery, or a supercapacitor).
- energy storage for powering the drive motor
- the base station may be formed as a charger for the handpiece.
- a device for inductive energy transmission can be provided at the base station and at the handpiece. Such devices are known, for example, from electric toothbrushes.
- electrical contacts can be formed on the base station and on the handpiece.
- the feed mechanism can be constructed as follows:
- the piston rod is arranged centrally along the longitudinal axis
- the transmission has at least two decentrally arranged threaded rods and associated threaded nuts;
- each of the threaded rods cooperates with a respective threaded nut to convert the rotational movement of the drive motor in a feed movement of the piston rod;
- the threaded rods are preferably evenly distributed in the circumferential direction. In the event that exactly two threaded rods are present, they are therefore preferably arranged diametrically opposite one another. In the event that three threaded rods are present, they are preferably arranged at the corners of an equilateral triangle. In the event that four threaded rods are present, they are preferably located at the corners of a square, etc.
- each of the threaded rods is non-rotatably connected at a distal end, and preferably also fixed axially fixed to the piston rod, and the threaded nuts are driven by the drive motor to a rotational movement.
- the threaded rods from the drive motor can be driven to rotate, and the threaded nuts are rotatably and preferably also axially fixed to the piston rod.
- Between the drive motor and the threaded nuts or the threaded rod transmission gears may be provided.
- the transmission mechanism may include the following elements:
- a central transmission rod having proximal and distal ends; a connecting element at the proximal end of the transmission rod for connecting the transmission rod to the torsional vibration drive;
- a fork element at the distal end of the transmission rod, with two legs which run decentrally parallel to the longitudinal axis and a coupling region for releasably connecting the fork element to the capsule housing of a mixing and application capsule received in the handpiece.
- the piston rod then preferably extends at least partially between the legs of the fork element.
- the coupling region may have a non-rotationally symmetrical driver region to form a positive connection with a circumferential direction
- the coupling region can have a toothing extending in the circumferential direction as such a driver region.
- This is preferably an external toothing.
- the coupling region can be configured as a transmission ring, which carries the teeth.
- This toothing may be formed circumferentially, or it may be formed only in segments or even only as individual teeth.
- another type of non-rotationally symmetrical driving region can also be provided, as long as this allows a positive connection in the circumferential direction.
- a positive connection is not mandatory.
- the coupling region may, for example, also be designed to produce a frictional connection, in particular a clamping connection with the coupling element of the capsule.
- the coupling region may have clamping jaws for this purpose.
- Piston rod is advanced axially, the transmission mechanism and the
- the transmission mechanism (in particular, one connecting the legs
- Cross bar of the fork element strikes in an initial position of the piston rod so axially on the piston rod (in particular at its proximal end) to that of
- the transmission mechanism is spring biased in the distal direction such that the coupling portion is pressed in a distal direction as the piston rod moves from the home position to the distal direction.
- the mixing and application system may also include a reader to read data from a machine-readable medium connected to the capsule.
- the reader may be one of the following devices:
- an optical reader for reading an optical code, in particular a
- the mixing and application system may have at least one control unit which is directly or indirectly connected to the reading device in order to receive the read-out data from the reading device.
- a control unit may be arranged in particular in the base station and / or in the handpiece.
- the at least one control unit can then be designed to determine at least one of the following parameters from the data read out:
- Type of mixing and application capsule e.g., "two-component capsule with a hollow application plunger”, “two-component capsule with bag-like fluid reservoir”, “two-component capsule with two parallel chambers” or “one-component capsule”;
- Amount of the contents of the mixing and application capsule e.g., "2 grams of powder P and 2 ml of fluid F"
- the at least one control unit is then designed to define and execute a mixing and dispensing program as a function of at least one of these parameters.
- the at least one control unit can be designed to control the torsional vibration drive in such a way that it rotates the capsule about its longitudinal axis while the reading device reads out the data from the data carrier.
- the data carrier is an optical code which is mounted on the jacket wall of the capsule housing, it is thereby guided past the reading device in a targeted manner, as a result of which read-out may only be possible, or at least made easier.
- the data carrier is an RFID tag, this results in advantages that the tag can be passed in the immediate vicinity of the reader.
- the present invention provides a mixing and application capsule for the preparation and application of a mixed product, in particular a dental material, a bone cement or a bone substitute material, of two components, which is specially designed for use with a mixing and application system of the type described above.
- the mixing and application capsule has:
- a capsule housing with a circumferential shell wall and a distal
- an application piston slidably disposed in the cylindrical mixing chamber along the longitudinal axis to discharge the mixed product through the discharge port from the mixing chamber;
- a fluid chamber for receiving a fluid second component; and a fluid passage connecting the fluid chamber to the mixing chamber for introducing the second component from the fluid chamber into the mixing chamber.
- At least one mixing element is arranged, which is connected to the application piston or with the capsule housing and protrudes into the mixing chamber.
- the mixing effect is improved when the capsule housing is set in torsional vibrations, as is the case with the mixing and application system of the type described above.
- the mixing element exerts a shearing action on the components in the mixing chamber.
- mixing elements also improve the mixing effect, when the mixing and application capsule is used in the traditional way with a shaker, as well as a shearing occurs.
- the fluid channel may initially be closed by a closure element.
- the at least one mixing element is already formed in the mixing chamber when the fluid channel is still closed.
- the at least one mixing element is preferably not first formed by the closure element being removed or destroyed.
- the at least one mixing element can in particular be designed as a mixing blade or mixing paddle. However, other shapes are possible, for example the shape of a helix, a filament, etc.
- the at least one mixing element preferably has a fixed first end, which is connected to the application piston or to the capsule housing. Preferably, it also has a free second end which projects into the mixing chamber.
- the at least one mixing element is preferably a mixing blade or mixing paddle.
- the mixing blade or mixing paddle can be twisted along its longitudinal axis.
- the at least one mixing element preferably protrudes inwards in relation to the longitudinal axis from an area close to the jacket wall into the interior of the mixing chamber. It preferably has a thickness of at least 02. millimeters and is preferably made of a thermoplastic material.
- the at least one mixing element is preferably non-releasable (i.e., permanently, non-destructively releasable) connected to the application piston or capsule housing.
- the at least one mixing element can be formed integrally with the application piston or the capsule housing.
- the at least one mixing element is connected to the application piston at a region of the application piston adjoining the jacket wall of the capsule housing. In other embodiments, the at least one mixing element is connected to the capsule housing in a transition region between the jacket wall and the end wall. Of course, mixing elements can be provided both on the application piston and on the capsule housing.
- At least two mixing elements are arranged distributed in the mixing chamber with respect to a circumferential direction. These are preferably arranged distributed uniformly along the circumferential direction.
- the mixing elements are preferably designed and arranged in such a way that they lie flat against the distal end of the application piston when it contacts the distal end
- the front wall of the capsule housing abuts. It is preferred if the mixing elements do not overlap in the flat-lying position.
- the mixing and application capsule preferably has a coupling element which is designed to transmit a torsional vibration about the longitudinal axis of a transmission mechanism of the mixing and application system to the capsule housing.
- the coupling element is preferably rigidly connected to the capsule housing.
- the coupling element may in particular be designed to be complementary to the coupling region of the transmission mechanism. It may form a receptacle open in the proximal direction for such a coupling region.
- the coupling element may have a non-rotationally symmetrical driving region, which is designed to produce a form fit with a correspondingly designed driver element of the transmission mechanism with respect to a circumferential direction.
- the coupling element can have a driving area extending in the circumferential direction toothing. This is preferably an internal toothing.
- the coupling element and the application piston can be integrally formed as a cover, which is connected as a whole with the capsule housing.
- the mixing chamber can be easily filled with a (e.g., powdery) first component, and then simply the lid attached to the capsule housing.
- a (e.g., powdery) first component e.g., powdery
- the fluid-tightness of the mixing chamber can be improved if the coupling element and the application piston are peripherally connected to each other, and if the coupling element is fluid-tightly attached to the capsule housing.
- the coupling element and the application piston can thus over a weakening range be connected to each other, that the application piston can be separated from the coupling element by axial pressure on the application piston.
- the coupling element can also be formed integrally with the capsule housing.
- the fluid chamber is arranged on or in the application piston, and the fluid channel extends through the application piston, in particular through an end wall region of the application piston.
- the fluid channel can be closed by a closure element, and the closure element can be brought by distal pressure on the closure element in an open position in which the closure element at least partially releases the fluid channel.
- the closure element is formed integrally with the application piston and connected to the application piston via a weakened area such that the closure element can be separated from the application piston by distal pressure on the closure element at the weakened area.
- the closure element is axially displaceable and sealing arranged as a plug in the fluid channel. In both cases, the fluid channel can be opened by distal pressure on the closure.
- a transmission element may be arranged such that the closure element can be brought into the open position by distal pressure on the transmission element.
- the transmission element may be an axial pin integrally formed with the closure element, which extends in a proximal direction away from the closure element into the fluid chamber.
- the mixing and application capsule may have a proximal bounding foil. which is connected in a peripheral edge region with the application piston and which limits the fluid chamber in a proximal direction.
- the fluid chamber is then piggybacked, as it were, on the proximal side of the application plunger.
- the fluid chamber is formed directly between the proximal boundary foil and the application piston and is delimited directly by the proximal boundary foil and the application piston.
- a distal boundary foil is also provided, which is connected in a peripheral edge region with the application piston and with the proximal boundary foil, and the fluid chamber is formed between the proximal and the distal boundary foil and is bounded by these two boundary foil.
- the capsule may further comprise a piercing member (for example a piercing spike) formed adjacent to the distal constraining foil on the application plunger to penetrate the distal constraining foil against the piercing member at distal pressure to provide a connection between the fluid chamber and the mixing chamber produce.
- a piercing member for example a piercing spike
- the delimiting foils can in particular be composite foils with at least one metal layer and at least one plastic layer, wherein the plastic layer preferably delimits the fluid chamber.
- the fluid chamber may be formed as a cylindrical cavity in the application piston, and the mixing and application capsule may comprise an activator piston which is displaceable in the cylindrical cavity forming the fluid chamber along the longitudinal axis.
- the fluid channel may initially be closed by a closure element and the activator piston may have a transmission element extending distally into the fluid chamber such that the transmission element acts on the closure element by a distal movement of the activator piston to move it to an open position bring, in which the closure element releases the fluid channel at least partially. In this way, the fluid channel can be very easily opened by axial pressure on the activator piston.
- the filling of the fluid chamber with the second component can be done in a very simple manner by the activator piston a little is pulled out of the cylindrical cavity in the application piston, wherein it entrains the closure element via the transmission element and releases the fluid channel, so that the second component can be filled into the cylindrical cavity.
- the mixing and application capsule may have a machine-readable data carrier. This can carry data for at least one of the following parameters:
- the data carrier may include in particular:
- an optical code in particular a bar code or QR code, which is mounted on the jacket wall of the capsule housing;
- an RFID tag which may preferably be located on or in the jacket wall of the capsule housing.
- the present invention also provides a process for producing and dispensing a mixed product, in particular a dental material, with a mixing and application system of the type mentioned above, i. an operating procedure for the mixing and application system.
- the method comprises:
- the mixing and application capsule comprises a capsule housing and an application piston displaceably arranged in the capsule housing and a mixing chamber bounded by the capsule housing and the application piston with a first component and a fluid chamber formed on or in the application piston a fluid second component defined, wherein between the fluid chamber and the mixing chamber, a fluid channel is present;
- the method may further comprise between step (b) and (c):
- step (c) may include:
- the handpiece is located in steps of (a) to (c) and, if necessary, during step (c1) in the base station.
- the method may include:
- step (c2) removing the handpiece from the base station (preferably before step (d) and after step (c) and optionally after step (c l).
- the process may comprise:
- this step may be triggered by one of the following events: (i) the user actuates a control on the handpiece or on the base station; (ii) the user returns the handpiece to the base station; or (iii) the application piston abuts the distal end of the capsule housing.
- the method comprises after inserting the mixing and application capsule into the handpiece preferably the following steps:
- Reading data from the data carrier
- the mixing and application system can be used not only with mixing and application capsules of the type described in more detail above, but also with capsules in which a mixing process does not necessarily have to be carried out. Such capsules may nevertheless be designed to be compatible with the above-described mixing and application system.
- the present invention relates to a more general form of an application capsule for the application of a product of at least one component, which is particularly well suited for use in a mixing and application system of the type described above.
- the capsule has:
- a capsule housing defining at least one component chamber for receiving the at least one component
- an application piston displaceable in a distal direction in the cylindrical component chamber along a longitudinal axis for discharging the at least one component out of the component chamber through at least one distal discharge opening;
- the application capsule has a coupling element which is designed to transmit a rotation about the longitudinal axis to the capsule housing.
- the coupling element has a non-rotationally symmetrical driving region, which is designed to produce a form fit with a coupling region of a transmission element for the rotation with respect to a circumferential direction.
- the non-rotationally symmetrical entrainment region can be formed in a proximal end region of the application capsule.
- the driving region can form an open receptacle for the coupling region in the proximal direction.
- the coupling element may have a toothing extending in the circumferential direction.
- Such an application capsule may have further features of the above-described mixing and application capsules.
- the coupling element and the application piston can be integrally formed together as a lid, which is connected as a whole with the capsule housing.
- the coupling element and the application piston can be connected to each other in such a way over a weakening range, that the application piston can be separated by axial pressure from the coupling element.
- the coupling element can in turn be formed integrally with the capsule housing.
- the application capsule may in turn comprise a machine-readable data carrier. This can carry data for at least one of the following parameters:
- the data carrier may include in particular:
- an optical code in particular a bar code or QR code, which is mounted on the jacket wall of the capsule housing;
- an RFID tag preferably on or in the mantle wall of the
- Capsule housing can be located.
- the present invention also further generally relates to An application system for use with an application capsule comprising a capsule housing and at least one product received in the capsule housing, the application system comprising:
- a handpiece with a receptacle for the application capsule and with a feed mechanism to discharge the product from the capsule housing;
- a reader to read data from a data carrier connected to the application capsule.
- the above considerations on the data medium and its readout also apply mutatis mutandis to such a more general application system.
- the reader may in particular be one of the following devices:
- an optical reader for reading an optical code, in particular a barcode or QR code, or.
- the application system comprises a base station with a holder for the handpiece
- the reader is preferably arranged on the base station.
- the application system can in turn have at least one control unit which is connected directly or indirectly to the reading device in order to receive the read-out data from the reading device, and the at least one control unit can be designed to determine at least one of the following parameters from the data read out:
- the at least one control unit can in turn be designed to define and execute a mixing and dispensing program as a function of at least one of these parameters.
- the application system can Having a rotary drive for generating rotations, wherein the handpiece has a transmission mechanism to transmit the rotations of the rotary drive to the capsule housing of the recorded in the handpiece application capsule.
- the reader may then be configured to read the data from the data carrier while the capsule housing is rotating.
- the present invention accordingly also relates more generally to a capsule with a corresponding data carrier.
- the invention relates to an application capsule for applying a product of at least one component, comprising:
- a capsule housing defining at least one cylindrical chamber for receiving the at least one component, the cylindrical chamber defining a longitudinal axis;
- an application piston slidably disposed in the cylindrical chamber along the longitudinal axis for discharging the component from the chamber, the application capsule having a machine-readable data carrier, and the data carrier carrying data for at least one of the following parameters:
- volume may include:
- an optical code in particular a bar code or QR code, which is mounted on the jacket wall of the capsule housing;
- the data carrier is preferably arranged in the region of the jacket wall.
- the application capsule can be designed to be rotated in an application system.
- This can be the Ap applicationsskapsel have a coupling element which is adapted to transmit a rotation about the longitudinal axis of the capsule housing.
- the coupling element can be configured as already described in more detail above.
- the coupling element may have a non-rotationally symmetrical entrainment region, which is designed to produce a form fit with a coupling region of a transmission element for the rotation with respect to a circumferential direction.
- the non-rotationally symmetrical entrainment region can be formed in a proximal end region of the application capsule.
- the driving region can form an open receptacle for the coupling region in the proximal direction.
- the coupling element may have a toothing extending in the circumferential direction.
- the present invention relates to a particularly well ventilated application capsule for applying at least one component.
- This capsule features:
- a capsule housing defining a cylindrical chamber for receiving the component, the cylindrical chamber defining a longitudinal axis;
- an application piston slidably disposed in the cylindrical chamber along the longitudinal axis to discharge the component from the chamber, the application piston having a vent passage for venting the chamber,
- the application capsule has a sealing plug which can be inserted into the ventilation channel
- closure plug is arranged on the application piston in such a way that a gas exchange between the chamber and an environment of the capsule through the ventilation channel is possible
- sealing plug can be inserted into the ventilation channel, so that the sealing plug closes the ventilation channel.
- the sealing plug in the delivery condition is connected by means of predetermined breaking point bridges to the application piston, and the predetermined breaking point bridges break during the axial insertion of the sealing plug into the ventilation channel.
- the closure plug can be designed as follows:
- the closure stopper has a cylindrical jacket surface which forms an annular peripheral sealing surface at a proximal end of the closure stopper.
- the lateral surface forms a plurality of guide surfaces which merge in a proximal direction in the annular sealing surface, and between the guide surfaces a plurality of longitudinal grooves are formed in the lateral surface, which serve for venting when the sealing plug is partially inserted into the through hole.
- FIG. 1 is a perspective view of a first embodiment of the mixing
- Fig. 2 is an exploded perspective view of the mixing and
- Fig. 3 is a detailed perspective view of the mixing and application capsule of
- Fig. 4 is a front view of the mixing and application system of Fig. 1;
- Fig. 5 is a sectional view of the mixing and application system of Fig. 1 in the
- Fig. 6 is a sectional view of the mixing and application system of Fig. 1 in the
- Fig. 7 is a detail view of a part of the elements in the interior of the handpiece of
- Fig. 8 is an exploded perspective view of the mixing and
- Fig. 9 is a further perspective exploded view of the mixing and
- FIG. 10 is a central sectional view of the mixing and application capsule of FIG. 3, together with a piston rod and a part of a Transmission mechanism, in a starting position;
- FIG. 11 shows the elements of FIG. 10 in a first intermediate position
- FIG. 12 shows the elements of FIG. 10 in a second intermediate position
- FIG. 13 shows the elements of FIG. 10 in an end position
- FIG. 15 shows a detailed view of a distal part of the mixing and application system of FIG. 1 in the starting position
- Fig. 16 is a detail view of a proximal part of the mixing and
- FIG. 17 is a detailed view of a distal part of the mixing and application system of FIG. 1 in an intermediate position;
- Fig. 18 is a detail view of a proximal part of the mixing and
- Fig. 19 is a central sectional view of a first variant of the mixing and
- Fig. 20 is a central sectional view of a second variant of the mixing and
- Fig. 21 is a perspective view of a variant of a lid of the mixing and
- FIG. 22 shows a central sectional view of a mixing and application capsule according to a second embodiment
- FIG. 23 is a side view of the mixing and application capsule of FIG. 22; FIG.
- Fig. 24 is a central sectional view of the mixing and application capsule of Fig. 22 in the plane C-C of Fig. 23;
- Fig. 25 is an exploded view of the mixing and application capsule of Fig. 22;
- Fig. 26 is a further exploded view of the mixing and application capsule of
- Fig. 27 is a central sectional view of the mixing and application capsule of Fig. 22, together with a piston rod and a part of a
- FIG. 28 shows the elements of FIG. 22 in a first intermediate position
- FIG. 29 shows the elements of FIG. 22 in a second intermediate position; FIG. the elements of Figure 22 in a third intermediate position.
- FIG. 1 a perspective view of an application capsule for a finished product; a top view of the application capsule for illustrating two sectional planes E- E and F-F;
- the application capsule in a first intermediate position; (a) central longitudinal section in plane F-F; (b) detail G; (c) central longitudinal section in plane E-E; (d) detail H;
- FIG. 40 or 41 a flowchart of an operating method for the mixing and application system of FIG. 40 or 41.
- FIGS. 1 to 4 show a first embodiment of a mixing and application system for producing and dispensing a dental material in different views.
- the mixing and application system comprises a Mixing and application capsule 100 (hereinafter referred to simply as a capsule) according to a first embodiment, a handpiece 200 and a base station 300.
- the base station 300 comprises a housing 310, on which a handpiece receptacle 320 is formed.
- a button 330 serves to operate the base station.
- the handpiece 200 is inserted into the handpiece receiver 320 of the base station 300.
- two coding ribs 211 are formed on the handpiece housing 210 as well as two coding grooves 321 which are complementary to the handpiece receptacle 320. These prevent rotation of the handpiece 200 in the base station 300.
- the handpiece 200 has a laterally open capsule receptacle 212 into which the capsule 100 can be inserted laterally.
- Two buttons 213, 214 serve to operate the handpiece 200.
- the capsule 100 of the first embodiment shown alone in FIG. 3 comprises a capsule housing 110, a cover 120 and an application tip 140.
- FIGS. 5 and 6 The internal structure of the handpiece 200 and the base station 300 is illustrated in FIGS. 5 and 6.
- a piston rod 220 Inside the handpiece housing 210 there are a piston rod 220, a transmission 230 for advancing the piston rod 220, which will be explained in more detail below in connection with FIG. 7, and a transmission mechanism 240, also explained below in connection with FIG. 7, for transmitting torsional vibrations from the base station 300 on the capsule housing 110, a drive motor 250 which drives the gear 230, a power source for the drive motor 250 in the form of a rechargeable battery 260 and a control unit 270.
- the control unit 270 is on the one hand adapted to the drive motor 250 according to a program described in more detail below head for.
- the control unit 270 serves to inductively recharge the rechargeable battery 260 in a manner known per se with the aid of an induction coil, which is not illustrated, and likewise to inductively communicate with the base station 300.
- a torsional vibration drive 340 Inside the housing 310 of the base station 300 is a torsional vibration drive 340. This generates torsional vibrations, ie an oscillating rotational movement.
- the frequency of the torsional vibrations can be, for example, in the range of about 2 Hz to 200 Hz. In particular, the frequency can be at least 5 Hz.
- the amplitude of the torsional vibrations from reversal point to reversal point is preferably at least 5 °, more preferably at least 10 °. It can be at least 20 °.
- Deviating amounts are possible. Frequency and amplitude together determine the spin and thus the achievable mixing effect; the greater the frequency and the amplitude, the better will be the mixing effect as a rule.
- Suitable torsional vibration drives are known per se and are used, for example, in electric toothbrushes (in particular so-called sonic toothbrushes).
- a control unit 350 controls the torsional vibration drive 340.
- the control unit 350 generates an alternating electromagnetic field via an induction coil, not shown, to inductively charge the battery 260 in the handpiece via the control unit 270 of the handpiece 200.
- the control unit 350 is designed to inductively communicate with the control unit 270 in the handpiece, ie to transmit control data inductively in both directions.
- a transformer 360 is provided to power the control unit 350.
- the transformer can also be designed as a separate unit, for example as a plug transformer.
- one or more weights may also be provided in the base station 300.
- FIG. 7 the piston rod 220, the gear 230, the transmission mechanism 240 and the drive motor 250 of the handpiece 200 are illustrated in greater detail.
- the piston rod 220 runs centrally along a longitudinal axis L. At its distal end, it has a feed flange 221 with an enlarged diameter. At its proximal end, the piston rod 220 on both sides on two diametrically opposite sides radially outwardly projecting connecting flange 222.
- the piston rod 220 acts on the capsule 100 in a manner described in more detail below.
- the transmission 230 comprises two threaded rods 231 extending decentrally parallel to the longitudinal axis L. The threaded rods 231 are fixedly attached to the connecting flange 222 of the piston rod 220.
- the transmission 230 also includes a base plate 232, to the decentralized drive gear 233, two intermediate gears 234 and two externally toothed threaded nuts 235 are mounted.
- the drive gear 233 is rotationally secured to the drive shaft 251 of the drive motor 250 is connected.
- the two intermediate gears 234 mesh with the drive gear 233 and with each one of the threaded nuts 235.
- the intermediate gears 234 transmit a rotational movement of the drive shaft 251 on the threaded nuts 235.
- Each one of these threaded nuts 235 runs on each one of the threaded rods 231 and thereby pushes in a rotary motion the respective threaded rod 231 in the axial direction. Overall, this achieves that a rotational movement of the drive shaft 251 is converted into an axial feed movement of the piston rod 220.
- the transmission mechanism 240 comprises a central transmission rod 241, to which a fork element 242 adjoins in the distal direction.
- the fork element comprises a transversely extending to the longitudinal axis crossbar 243 (also referred to as a yoke) and two decentralized parallel to the longitudinal axis extending leg. At their respective distal end, the legs are connected to a coupling region in the form of a circumferentially closed transmission ring 244.
- the transmission ring 244 is designed to be inserted in a rotationally secured manner in a proximally open region of the lid 120 of the capsule 100.
- the transmission ring 244 is equipped on its outer circumference with an external toothing 245.
- the transmission rod 241 has at its proximal end a plug-in receptacle 246 (see FIGS. 5 and 6), into which the drive shaft 341 of the torsional vibration drive 340 is inserted in a rotationally secured manner. In the circumferential direction, there is a positive connection between the drive shaft 341 and the plug receptacle 246 in order to be able to securely transmit torsional vibrations to the transmission mechanism 240. Overall, in this way, the transmission mechanism 240 causes a transmission of torsional vibrations from the torsional vibration drive 340 on the capsule housing 110th
- the capsule 100 is illustrated in more detail in FIGS. 8-10.
- the capsule housing 110 has a circumferential jacket wall 111.
- a circumferential collar 112 projects radially outward. Proximal from the collar 112 is on the shell wall 111 an outwardly projecting annular bead 114 is formed. Between the collar 112 and the annular bead 114 thus a circumferential outer annular groove is formed.
- the part of the jacket wall 111 located proximally from the collar 112 forms a retaining ring 113 for the cover 120.
- the capsule housing 110 has a distal end wall 115 on which a connection region 116 for the application tip 140 is formed.
- connection region 116 surrounds a discharge opening for the finished dental material to be discharged.
- This discharge opening is initially closed by a relatively thin sealing film 117 (see FIG. 10).
- the closure film 117 is formed integrally with the end wall 115 and has a cross-shaped weakened area.
- the capsule housing 110 delimits a cylindrical mixing chamber K1 for receiving a powdery first component of the dental material to be produced.
- the cylindrical mixing chamber Kl defines the position of the central longitudinal axis L.
- the cover 120 has an application piston 121, which protrudes in the region of the retaining ring 1 13 in the proximal end of the capsule housing 1 10.
- two mutually radially opposed mixing vanes 122 are formed. These protrude from the radially outer, circumferential edge of the distal end of the application piston 121 along each of a direction which is inclined to the longitudinal axis L, inwardly into the cylindrical mixing chamber Kl inside.
- Each mixing blade 122 has an elongate, flat shape, here the shape of an elongated rectangular plate, and is attached with one of its short sides to the radially outer edge of the distal end of the application piston 121. Instead of a rectangular shape, the mixing blades can also have any other shape.
- the application piston 121 has a continuous central bore 124, which forms a fluid channel.
- a pin 123 extending axially along the longitudinal axis and projecting in the proximal direction is subsequently arranged on the bore 124.
- the pin 123 is integrally connected to the application piston 121 via a peripheral weakening region.
- the distal end of the pin 123 thereby forms a closure element for the bore 124, while the remaining pin 123 forms a transmission element for transmitting an axial compressive force on the closure element.
- the closure member for the bore 124 and the transmission member are integrally formed integrally in the form of the pin 123.
- the cover 120 also has a coupling element in the form of a coupling ring 125.
- the coupling ring 125 is integrally connected to the application piston 121 via a peripheral weakening region on the outer circumference of the application piston 121. With its distal end, the coupling ring 125 engages around the retaining ring 113 formed at the proximal end of the capsule housing 110. At its distal end, it has a radially inwardly projecting annular bead, which engages in the annular groove on the retaining ring 113. As a result, the coupling ring 125 is locked to the proximal end of the capsule housing 110.
- the coupling ring 125 in the circumferential direction is a frictional connection between the coupling ring 125 and the capsule housing 110.
- the coupling ring 125 may be materially connected to the capsule housing 110.
- the proximal end of the coupling ring 125 is formed as a proximally open receptacle for the already mentioned transmission ring 244 of the fork element 242.
- the coupling ring 125 on the inside an internal toothing 126 which is complementary to the external teeth 245 of the transmission ring 244.
- a proximal bounding foil 130 covers the proximal side of the application plunger 121 and the pin 123. It is of circular, domed shape. With its peripheral outer edge 123, the proximal boundary foil 130 is materially connected to the application piston 121.
- the proximal boundary foil 130 may be formed, for example, as a composite foil with an aluminum layer and at least one plastic layer. It may, for example, be sealed by inductive welding on the proximal side of the application piston 121.
- the cavity formed between the application piston 121 and the proximal boundary foil 130 forms a fluid chamber K2 for a fluid second component of the dental material to be produced.
- the application tip 140 is provided with an insertion sleeve 141 in the connection region 116 the capsule housing 110 inserted. It has an application cannula 142 for applying the finished dental material.
- FIGS. 10 to 13 illustrates how a dental material is produced and applied with the aid of the mixing and application system.
- the handpiece 200 is located in the base station 100.
- the first, powdered component of the dental material is located in the mixing chamber K1 and the second, fluid component of the dental material in the fluid chamber K2.
- the bore 124 is closed by the pin 123.
- the outlet of the mixing chamber K 1 is closed by the sealing film 117.
- the piston rod 220 is located at an axial distance proximal of the proximal confinement sheet 130.
- the transmission ring 245 of the fork member 242 is located proximally of the coupling ring 125.
- the piston rod 220 abuts at its proximal end to the transverse bracket 243 of the fork member 242. As a result, the piston rod 220 prevents axial movement of the fork member 242 in the distal direction.
- the preparation of the dental product is now started by the user pressing the button 330 on the base station 300.
- This first causes the control unit 350 of the base station 300 to communicate with the control unit 270 in the handpiece 200 to activate the drive motor 250 in the handpiece 200 so as to axially displace the piston rod 220 axially by a first amount into the distal one by means of the transmission 230 Advancing direction.
- the piston rod 220 exerts an axial compressive force on the pin 123 via the proximal limiting foil 130.
- This pressure force causes the pin 123 at the circumferential weakening region of the application piston 121 tears off and is gradually pressed into the bore 124.
- FIG. 11 shows the state which occurs when the piston rod 220 has advanced so far in the distal direction that the second component has been pressed completely out of the fluid chamber K2 into the mixing chamber Kl.
- the proximal boundary foil 130 now lies largely flat on the proximal side of the application piston 121.
- the pin 123 is completely received in the bore 124.
- the application piston 121 is still connected in one piece with the coupling ring 125, and the outlet of the mixing chamber K1 is still closed by the sealing film 117.
- the mixing chamber Kl unchanged on their initial volume.
- the transmission ring 244 of the fork element 242 is now inserted into the coupling ring 125.
- the internal teeth 126 of the coupling ring 125 cooperates with the external teeth 245 of the transmission ring 244, there is a positive connection in the circumferential direction between the transmission mechanism 240 and the coupling ring 125.
- forces acting in the circumferential direction can be effectively transferred to the capsule housing 110.
- the control unit 350 in the base station 300 now communicates with the control unit 270 in the handpiece 200 such that the drive motor 250 retracts the piston rod 220 slightly again.
- the piston rod 220 is decoupled in terms of its force from the capsule 100.
- the control unit 350 activates the torsional vibration drive 340 in the base station 300.
- the torsional vibrations are transmitted to the transmission ring 244.
- This transmits the torsional vibrations in turn to the coupling ring 125 and the thus positively and / or materially connected capsule housing 1 10.
- the entire capsule housing 1 10 is put into strong torsional vibrations.
- the mixing vanes 122 move through the components due to torsional vibrations and produce a shearing action. As a result, an efficient mixing of the components is achieved. As a result, the ready-to-use dental product is obtained.
- the control unit 350 of the base station again communicates with the control unit 270 of the handpiece 200 to again activate the drive motor 250, so that the Piston rod 220 is advanced in the distal direction again.
- the piston rod 220 now exerts an increasing axial compressive force on the application piston 121.
- the application piston 121 ruptures at its surrounding weakened area from the coupling ring 125.
- the application piston 121 By further advancing the piston rod 220, the application piston 121 now moves in the interior of the capsule housing 110 in the distal direction.
- the application piston 121 compresses the dental product contained in the mixing chamber K1 as well as the air also contained therein.
- the air collects mainly due to the buoyancy at the top.
- the air gathers at the distal end of the mixing chamber K1 in the region of the sealing film 117.
- the sealing film 117 ruptures and the air passes through the application tip 140 pushed out.
- only the finished dental product remains in the mixing chamber K1.
- the control unit 270 detects this and then stops the feed of the piston rod.
- the dental product is discharged.
- the handpiece 200 is removed from the base station 300.
- the control unit 270 of the handpiece 200 again activates the drive motor 250, so that the piston rod 220 is advanced further in the distal direction.
- the dental product now passes through the outlet of the capsule housing 1 10 in the application tip 140. From there it is applied directly to the desired location. This situation is illustrated in FIG.
- the application piston 121 advances beyond the position in the distal direction where the mixing vanes 122 first contact the distal end wall 115 of the capsule housing 110, the mixing vanes 122 begin to flex inwardly until finally flat on the distal end of the application piston 121 rest.
- FIG. The dental material is now completely discharged from the mixing chamber, and the application piston 121 has reached its distal end position.
- the control unit 270 in the handpiece 200 finally drives the drive motor 250 in such a way that it retracts the piston rod 220 back into the starting position of FIG.
- the proximal end of the piston rod 220 again abuts the proximal end of the fork element 242 and carries it along in the proximal direction.
- the transmission ring 244 is pulled out of the coupling ring 125 in the proximal direction.
- the capsule 100 can now be easily removed laterally from the handpiece 200.
- This reverse movement of the piston rod 220 can be triggered by one of the following events: (i) by operation of the rear button 214 on the handpiece; (ii) automatically by the control unit 350 of the base and / or the control unit 270 of the hand piece, when one of these control units recognizes that the hand piece 200 is inserted into the base station 300; and / or (iii) in that the control unit 270 recognizes that the application piston 121 abuts against the distal end wall 15 of the capsule housing 110, that is to say that the capsule has been emptied maximally.
- Figures 14-18 illustrate how the handpiece 200 mechanically interacts with the base station 300.
- the figures 14-16 show the handpiece in the initial state, in which the piston rod 220 is in its maximum retracted position.
- the transmission mechanism 240 is in a retracted position, in which the transmission ring 244 laterally releases the capsule receiver 212.
- a compression spring 342 surrounds the drive shaft 341 of the torsional vibration drive 340. This compression spring is compressed in the initial state between the plug receptacle 246 of the transmission mechanism 240 and the housing of the torsional vibration drive 340. Thereby, the compression spring 342 presses the transmission mechanism 240 in the distal direction. Since the connecting flange 222 of the piston rod 220 abuts against the crossbar 243 of the fork member 242, the piston rod 229 prevents the transmission mechanism 240 from moving in the distal direction.
- FIGS. 17 and 18 show the handpiece in a state in which the application piston 121 has been advanced by means of the piston rod 220 so far that the second component has been pressed out of the fluid chamber. Due to the movement of the piston rod 220 in the distal direction, the transmission mechanism 240 could now also due to the spring force generated by the compression spring 342 move in the distal direction. As a result, the transmission ring 244 has penetrated into the interior of the coupling ring 125 and has produced a coupling of the transmission mechanism 240 with the capsule housing 110.
- the compression spring 342 may also be mounted at a different location, in particular at a suitable location within the handpiece 200.
- FIG. 19 illustrates a variant of the capsule housing 110 of the capsule 100 according to the first embodiment.
- the discharge tip 140 is formed integrally with the capsule housing 110.
- the capsule housing of Figure 19 corresponds to the capsule housing of Figures 3 and 8-13.
- FIG. 20 illustrates a further variant of the capsule housing 110 of the capsule 100 according to the first embodiment.
- This capsule housing has, in the region of the transition between the cylindrical jacket wall 111 and the distal end wall 115, two diametrically opposed mixing vanes 118, which are integrally formed with the capsule housing 110 and protrude obliquely inclined to the longitudinal axis into the interior of the mixing chamber from a region close to the jacket wall.
- the capsule housing of Figure 20 again corresponds to the capsule housing of Figures 3 and 8-13.
- the mixing vanes 118 may be provided instead of the mixing vanes 122 on the application piston 121, or they may be provided in addition to these.
- FIG. 21 illustrates a variant of the cover 120 of the capsule 100 according to the first embodiment.
- the mixing vanes 122 again have an elongated, flat shape. However, the mixing vanes 122 are twisted along their own longitudinal axis in order to improve the shearing action in the torsional vibration and thus the mixing effect.
- FIG. 22 shows a second embodiment of a mixing and application capsule. Like-acting parts are designated by the same reference numerals as in the first embodiment.
- the second embodiment is different from the first embodiment only by the way in which the fluid chamber K2 is formed, and how the central bore 124 of the application piston 121 is closed.
- a first, distal boundary foil 132 is sealed onto an edge area 133 on the proximal side of the application piston 121.
- a second, proximal delimiting foil 130 with its edge region 131 is sealed onto this distal delimiting foil 132.
- the central bore 124 is open.
- a piercing element in the form of a piercing mandrel 127 is formed on the proximal end face of the application piston 121.
- distal pressure is applied to the proximal confinement foil 130 by the piston rod 220, this causes the distal constraint foil 132 to be pressed against the piercing mandrel 127 and thereby rupture. In this way, the second component from the fluid chamber K2 pass through the central bore 124 into the mixing chamber Kl.
- FIGS. 23-31 illustrate a third embodiment of a mixing and application capsule.
- the application piston 121 comprises a circumferential jacket wall and a distal end wall, which together define a cylindrical cavity.
- an axially displaceable activator piston 150 is used.
- the activator piston 150 has on its distal side an axially extending locking pin 151, at the distal end of which a sealing plug 152 with a slightly enlarged diameter is formed.
- the sealing plug 152 closes the central bore 124 in the distal end wall of the application piston 121.
- the circumferential jacket wall and the distal end wall of the application piston 121 and the activator piston 150 jointly delimit the cylindrical fluid chamber K2.
- Figures 27-31 illustrate a mixing and application process with the mixing and Application capsule of the third embodiment.
- the application piston 121 is integrally connected to the coupling ring 125 and thereby axially fixed to the capsule housing 110.
- the activator piston 150 is in a proximal starting position.
- the sealing plug 152 closes the central bore 124 of the application piston 121.
- the piston rod 220 is located at a distance proximal from the application piston 121 and activator piston 150.
- the transmission ring 244 is located at a distance proximally from the coupling ring 125.
- the piston rod 220 When the piston rod 220 is advanced in the distal direction, it initially exerts a distal compressive force only on the activator piston 150.
- the outer diameter of the feed flange 221 is smaller than the outer diameter of the activator piston 150.
- the activator piston 150 is advanced within the application piston 121 in the distal direction.
- the closure pin 151 presses the closure plug 152 out of the central bore 124 in the distal end wall of the application piston 121.
- the closure stopper 152 releases an annular fluid channel between the closure pin 151 and the surrounding end wall of the application piston 121.
- the piston rod 220 is again pulled back slightly to decouple the piston rod 220 from the activator piston 150, and torsional vibrations are applied to the capsule housing 110, whereby the two components in the mixing chamber K1 are mixed.
- the piston rod 220 is advanced again in the distal direction.
- the application piston 121 with the activator piston 150 received therein is separated from the coupling ring 125 and advanced in the distal direction.
- FIG. Now, when the application piston 121 is advanced further in the distal direction, the pressure in the mixing chamber K1 sharply increases, and the sealing film 117 ruptures. As a result, the air contained in the mixing chamber K1 escapes through the application tip 140, and the finished mixed product can be applied. This situation is illustrated in FIG.
- FIG. 32 shows a schematic flow chart of a mixing and application process with the mixing and application system of the present invention.
- step 401 a fresh capsule 100 is inserted into the handpiece 200 while it is in the base station 300.
- step 402 the user presses the button 330 on the base station 300. This drives the drive motor inside the handpiece 200 to advance the piston rod in the handpiece 200, thereby introducing the second component from the fluid chamber K2 into the mixing chamber K1.
- the piston rod is retracted somewhat in the proximal direction to decouple the application piston 121 from the piston rod 220, thus avoiding the transfer of forces between the application piston 121 to the piston rod 220 during the subsequent mixing operation.
- step 404 the torsional vibration drive 340 in the base station 300 is activated, causing the mixing and application capsule 100 to be torsionally vibrated.
- the second component in the mixing chamber K1 is mixed with the first component and the finished mixed product is formed.
- the piston rod is advanced so far in the handpiece 200 in the distal direction that the application piston 121 is torn off from the coupling ring 125.
- the piston rod is advanced further, so that the application piston 121 moves in the distal direction, opens due to the resulting pressure of the closing film 1 17 and the mixing chamber Kl is vented.
- Steps 402-406 run after pressing the button 330 fully automatic.
- step 407 the user removes the handpiece 200 from the base station 300.
- step 408 the user presses the button 213 on the handpiece.
- the control unit 270 of the handpiece 200 again activates the drive motor 250 in order to advance the application piston 121 further and thus to discharge the finished mixed product.
- the user presses the button 214 on the handpiece 200 in step 409, or returns the handpiece 200 to the base station 300 again.
- control unit 270 of the handpiece 200 activates the drive motor 250 in the opposite direction to retract the piston rod 220 from the capsule 100 so that the user can remove the capsule from the handpiece 200 , While the handpiece 200 is in the base station 300, the battery 260 in the handpiece is charged by the base station.
- mixing vanes of the type mentioned above other forms of mixing elements may be arranged in the mixing chamber, as long as they produce a shearing action in torsional vibrations of the mixing chamber.
- the torsional vibration drive can also be arranged in the handpiece instead of in the base.
- Various other types of mixing and application capsules can be used.
- the system can also be used for other two-component mixtures.
- the design and size of the capsule can be adapted to the specific requirements. Thus, larger capsules can be used if e.g. a bone cement or bone substitute material to be produced and discharged.
- FIG. 33 illustrates a fourth embodiment of a mixing and application capsule.
- the capsule comprises a capsule housing 110 having a circumferential casing wall 11, a distal end wall 115 and a connection region 116 formed thereon for an application tip 140.
- the connection region 116 in turn surrounds a discharge opening, which is initially surrounded by a Closure film 117 is closed.
- the capsule comprises a cover 120, which in turn forms an application piston 121 and a coupling ring 125 with internal toothing 126 connected thereto over a weakened area.
- the lid 120 is connected to the capsule housing 110 in the same manner as in the first embodiment of the capsule shown in Figs. 1, 3 and 8-13.
- the capsule housing 110 does not confine a single cylindrical mixing chamber K1 but two cylindrical component chambers K1 'and K2' which are separated from one another by a rigid partition wall 160.
- the partition wall 160 in the present example runs centrally in the capsule housing 110, i. it contains the central longitudinal axis L of the capsule housing 110. It may have a varying thickness and may be e.g. in such a way from the central longitudinal axis L outwardly widen that the two component chambers ⁇ , K2 'receive a circular cross-section, ie a total circular cylindrical shape. In other embodiments, however, it may also be a simple flat wall, so that the two component chambers each receive a nearly semicircular cross section.
- the partition 160 is connected to the capsule housing 110 laterally and distally without interruption. In particular, it is connected at its distal end continuously to the distal end wall 115 of the capsule housing.
- the dividing wall 160 traverses the discharge opening and with its distal end divides the discharge opening into two partial openings. In other embodiments, two separate discharge openings may be present in the end wall 115, both opening into the application tip 140.
- Each of the partial openings or discharge openings is closed by a sealing film 117.
- the partition wall 160 is formed integrally with the capsule housing 110.
- the application piston 121 has two partial pistons 161, 162.
- Each partial piston 161, 162 is rigidly connected to a base region 165 via a respective piston rod 163, 164.
- Each partial piston 161, 162 projects into one of the two component chambers ⁇ or K2 'and can be displaced therein axially along the longitudinal axis L.
- each partial piston 161, 162 has a cross-section which corresponds to the cross-section the corresponding component chamber ⁇ , K2 'corresponds.
- each partial piston 161, 162 lies circumferentially sealingly against the jacket wall 111 of the capsule housing 110 and the partition wall 160.
- a gap 166 is formed between the piston rods 163, 164.
- the component chambers ⁇ and K2 ' are hermetically separated from each other.
- a flowable component of a dental product is taken, in particular a liquid or a paste.
- a static mixer 167 is arranged, which can be in particular a Scherblendenmischer per se known type.
- a shearblend mixer has a mixing coil with a plurality of shear shutters arranged axially one behind the other and running transversely to the direction of flow.
- a static mixer of another type known per se it is also possible to use.
- the capsule is inserted into the handpiece 200, as is the case with the first embodiment of the capsule.
- the handpiece 200 advances the piston rod 220 in the distal direction.
- the application piston 121 is advanced in the distal direction along the longitudinal axis L.
- the sealing film 117 ruptures at the ends of both component chambers ⁇ and K2 ', and the two components pass from the component chambers ⁇ , K2' into the applicator tip 140.
- the components are interconnected by the static mixer 167 mixed and exit as a finished product from the distal end of the application tip 140.
- the third embodiment shown in FIG. 33 is particularly suitable for producing liquid or pasty products from two liquid or pasty components.
- the mixing and application process is simpler than the first and second embodiments because it is not necessary to spin the capsule in order to mix the components.
- the torsional vibration drive 340 in the base station 300 may remain inoperable or used for other purposes, such as reading a bar code or RFID tag on the capsule housing 110 as well will be described in more detail below.
- for transmitting rotations to the capsule serves, as in the preceding embodiments of mixing and application capsules, coupling ring 125 with its coupling region arranged proximally from the application piston 121.
- such a capsule can also be used in a discharge system without torsional vibration drive.
- FIGS. 34-38 illustrate an application capsule for a one-component finished product.
- This capsule has a device for venting before the actual discharge process.
- Like acting parts are again denoted by the same reference numerals as in the above-explained first embodiment of a mixing and application capsule.
- the capsule in turn has a capsule housing 110 with a circumferential jacket wall 111.
- a barcode 190 is attached by way of example here, the function of which will be explained in more detail below.
- a coupling ring 170 is formed here in one piece with the capsule housing 110.
- the coupling ring 170 with internal teeth 171 corresponds in construction and function of the coupling ring 125 of the embodiments of mixing and application capsules described above. It is in turn arranged on a proximal end region of the capsule.
- the coupling ring 170 is made in one piece with the capsule housing 1 10, while the coupling ring 125 of the above embodiments is formed as part of a lid 120.
- an application piston 180 is displaceably arranged, which rests circumferentially sealingly on the inside of the capsule housing 110.
- the application piston 180 has a central bore 181, which serves as a venting channel. Above the proximal end of the bore 181, a sealing plug 182 is arranged.
- the closure plug 182 projects proximally over the application piston 180.
- the sealing plug 182 is connected at its distal end in the region of the central bore 181 via predetermined breaking point bridges 183 to the proximal end of the application piston 180.
- the sealing plug 182 is of approximately cylindrical shape. Its lateral surface forms a plurality of guide surfaces 184, which merge at the proximal end of the sealing plug 182 in an annular circumferential sealing surface 186.
- Each guide surface 184 has the shape of a cylinder jacket segment. In the circumferential direction between the guide surfaces 184 a plurality of longitudinal grooves 185 are formed. A distal end portion 187 distal to the guide surfaces 184 has the stopper 182 of reduced outer diameter; In this area, the predetermined breaking point bridges 183 are arranged, which connect the sealing plug 182 with the application piston 180. In the distal end region 187 and in the region of the longitudinal grooves, the outer diameter of the sealing plug 182 is smaller than the inner diameter of the central bore 181. As a result, there are a plurality of gas exchange channels 188 between the sealing plug 182 and the application piston 180, which allow a gas exchange.
- the outer diameter of the sealing plug 182 corresponds to the inner diameter of the central bore 181 or is slightly larger than this inner diameter to ensure a full guide and sealing effect when the closure plug 182 is inserted into the central bore 181 ,
- the capsule contains a ready-to-use product.
- the capsule is again inserted into the handpiece 200.
- the piston rod 220 is advanced in the handpiece 200 in the distal direction.
- the piston rod rests on the proximal end of the closure plug 182 and exerts pressure in the distal direction on this end.
- the unit of application piston 180 and closure plug 182 begins to move in the distal direction, and although such that the predetermined breaking point bridges 183 initially remain intact.
- the sequence of movements is illustrated in FIGS. 36-38.
- the capsule is shown in its initial position. Inside the capsule, a product chamber K is formed, in which the product to be discharged and air are located (see Figures 36 (a) and (c)). At the distal end, the chamber K is closed in the direction of the application tip 140 by a closure film 117. Now, as the unit of application piston 180 and occlusion plug 182 is advanced in the distal direction, the air escapes outwardly through the gas exchange channels 188 from inside the capsule (see Figure 36 (d)). The predetermined breaking point bridges 183 remain intact (see FIG. 36 (b)), as does the closing film 117.
- the capsule is shown in a first intermediate position.
- the piston rod has now advanced the application piston 180 together with the stopper 182 in the distal direction that all the air has escaped through the gas exchange channels 188 from the chamber K and essentially only the product to be discharged is in the chamber K (see FIGS. 37 (a) and (c)).
- the sealing plug 182 is in contact with the application piston 182 via the intact predetermined breaking point bridges 183 (see FIG. 37 (b)) and releases the channels 188 (see FIG. 37 (d)).
- the plug 182 Upon further advancement of the piston rod, the plug 182 is fully inserted into the central bore 181. The resulting third intermediate position is illustrated in FIG. The sealing surface 186 now lies circumferentially on the inner wall of the central bore 181. As a result, the sealing plug 182 now seals the application piston 180 in the proximal direction, and neither air nor product can escape through the central bore 181.
- This embodiment of a capsule is particularly suitable for one-component products in the form of high-viscosity pastes.
- no torsional vibration drive is needed.
- the system may be configured to vibrate the capsule for a certain time prior to the start of the actual discharge operation. This can e.g. happen before the piston rod is advanced for the first time, or after the capsule has been vented and the stopper plug has been fully inserted into the application piston.
- one or more mixing elements such as e.g. Blades are provided, as has already been explained in connection with the first and second embodiment of a mixing and application capsule.
- the capsule can be packed in a hermetically sealed bag, eg made of a composite foil with a metal layer.
- a protective film eg in the form of a composite film with a metal layer
- This protective film is either manually removed prior to insertion into the handpiece 200, or is designed to remain on the capsule upon insertion into the handpiece and then to rupture upon initial advancement of the piston rod.
- the protective film can have a corresponding weakening range.
- FIG. 40 shows a second embodiment of a mixing and application system. This embodiment largely corresponds to the above-explained first embodiment of a mixing and application system, as shown in Figures 1-18. For identical or equivalent parts, the same reference numerals as in the first embodiment are used.
- the second embodiment has a back wall 370 that extends parallel to the longitudinal axis of the handpiece 200.
- a data reader here in the form of a bar code reader 371, attached.
- a capsule 100 is added.
- a machine-readable data carrier in the form of a bar code 190 is printed.
- the bar code reader 371 is arranged and adapted to read the bar code 190 when the handpiece 200 is received in the base station 300.
- the torsional vibration drive of the handpiece 200 rotates the capsule 100 about its longitudinal axis and thus passes along the barcode 190 printed on the barcode reader 371 along the circumferential direction.
- any other optical code may be mounted on the shell wall 111 of the capsule housing 110, e.g. a two-dimensional QR code.
- the data reader may also be another type of optical reader, e.g. to act as a QR code reader. Suitable optical readers are commercially available and well known in the art
- the data reader is controlled by the control unit 350 in the interior of the base station 300 and transmits the read-out data of the bar code to the control unit 350.
- the data read out can be, in particular, the following types of data:
- Type of capsule for example, whether the capsule is a single-component capsule, a capsule having two juxtaposed component chambers, or a capsule containing a powder and a liquid as in the first three embodiments, etc.;
- Contents of the capsule type and quantity of the first and second component or product
- the control unit 350 in the base station 300 transmits a part of the read-out data or data derived therefrom to the control unit 270 in the interior of the handpiece 200.
- the mixing and application system can automatically recognize how the product should be discharged without the user needing to know and observe the corresponding discharge conditions.
- the handpiece 200 with the capsule 100 is inserted into the base station 300.
- the capsule 100 is rotated by the torsional vibration drive 340 in the base station 300, and the bar code 190 is read out by the bar code reader 371.
- the read-out data is transmitted to the control unit 350 in the base station 300.
- the control unit now starts the necessary preparatory actions such as fluid transfer, mixing, venting, etc. These actions vary depending on the type of capsule.
- FIG. 41 shows a third embodiment of a mixing and application system. This embodiment largely corresponds to the second embodiment explained above, as shown in FIG. For identical or equivalent parts, the same reference numerals as in the second embodiment are used.
- the third embodiment has an RFID reader 372 on.
- an RFID tag (RFID transponder) 191 is applied or embedded in this jacket wall 111.
- the RFID reader 372 is arranged and adapted to read out the RFID tag 191 when the handpiece 200 is received in the base station 300.
- the torsional vibration drive 340 of the base station 300 rotates the capsule 100 about its longitudinal axis and thus guides the RFID tag 191 past the RFID reader 372.
- Suitable RFID tags and associated RFID readers are commercially available and well known in the art. The use of RFID tags in particular has the advantage that such a system is less susceptible to contamination.
- FIG. 42 shows a flow chart which illustrates the sequence of a discharge operation using a data reader of the type of the readers 371, 372.
- a capsule with a data carrier is inserted into the handpiece.
- data is read from the data carrier using the reader.
- parameters are derived from these data that define the type and content of the capsule and that indicate what type of mixing and / or dispensing operation is to be performed on the capsule.
- a mixing and discharge program is determined on the basis of these parameters, whereby a mixing operation can also be dispensed with, depending on the type of capsule.
- the mixing and dispensing program is then executed. This program may e.g. steps 402-408 of Figure 32 or other steps.
- any other type of holder for the reader 371 or 372 may be provided, as long as the reader is arranged in an area in which it can read the data carrier on the capsule.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH17462015 | 2015-11-30 | ||
PCT/EP2016/066172 WO2017092884A1 (de) | 2015-11-30 | 2016-07-07 | Misch- und applikationssystem für ein dentalpräparat |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3383307A1 true EP3383307A1 (de) | 2018-10-10 |
Family
ID=55521305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16736859.6A Withdrawn EP3383307A1 (de) | 2015-11-30 | 2016-07-07 | Misch- und applikationssystem für ein dentalpräparat |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3383307A1 (de) |
WO (1) | WO2017092884A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3081302B1 (fr) | 2018-05-23 | 2021-12-10 | Oreal | Dispositif de preparation d'une composition cosmetique et procede associe |
US10894272B2 (en) | 2018-06-29 | 2021-01-19 | Sulzer Mixpac Ag | Dispensing control system |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1123061A1 (de) | 1998-10-19 | 2001-08-16 | Dentsply International, Inc. | Kapsel zum mischen und ausbringen |
DE29822967U1 (de) * | 1998-12-23 | 2000-05-11 | ESPE Dental AG, 82229 Seefeld | Gerät zum Ausbringen von fließfähigen Massen |
EP1656213B1 (de) * | 2003-08-21 | 2012-03-21 | Medmix Systems AG | Vorrichtung und verfahren zum aufbewahren, mischen und austragen von komponenten |
EP1834603A1 (de) * | 2006-03-10 | 2007-09-19 | 3M Innovative Properties Company | Vorrichtung und Verfahren zur Ausgabe von zahnärztlichem Material |
DE102006043710B4 (de) * | 2006-09-18 | 2010-02-11 | Ernst Mühlbauer Gmbh & Co. Kg | Vorrichtung zum Ausbringen und Mischen von hochviskosen oder pastösen Massen |
GB0721774D0 (en) * | 2007-11-07 | 2007-12-19 | 3M Innovative Properties Co | one-piece vented piston |
IL197761A0 (en) * | 2009-03-23 | 2009-12-24 | Moshe Zalsman | Capsule for mixing together two flowable materials, and kits including such capsules, particularly useful in dentistry |
DE102009016862B4 (de) * | 2009-04-08 | 2011-11-10 | Voco Gmbh | Misch- und Applikationskapsel zur Herstellung eines Dentalpräparates |
DE102010049378B4 (de) * | 2010-10-26 | 2014-07-03 | Kettenbach Gmbh & Co. Kg | Kartuschenanordnung mit einer Doppelkartusche |
JP5847293B2 (ja) * | 2011-04-19 | 2016-01-20 | デンツプライ インターナショナル インコーポレーテッド | 印象材送出システム |
JP6247491B2 (ja) * | 2013-09-30 | 2017-12-13 | ぺんてる株式会社 | 混合容器のノズル取付け構造 |
-
2016
- 2016-07-07 WO PCT/EP2016/066172 patent/WO2017092884A1/de active Application Filing
- 2016-07-07 EP EP16736859.6A patent/EP3383307A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2017092884A1 (de) | 2017-06-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69505356T2 (de) | Knochenzementmischapparat | |
EP2944380B1 (de) | Vorrichtung und verfahren zum mischen eines mehrkomponentenzements | |
EP2723482B1 (de) | Vorrichtung zum blasenarmen mischen und austragen eines produkts | |
EP3524341B1 (de) | Knochenzementapplikator mit verschliessbarer begasungsöffnung | |
DE10057616B4 (de) | Verfahren zum Mischen und Applizieren von fließfähigem Knochenzement sowie Mischvorrichtung für Knochenzement | |
EP2957337B1 (de) | Vakuummischsystem und verfahren zum mischen von polymethylmethacrylat-knochenzement | |
EP2883603B1 (de) | Vorrichtung zum Lagern und Mischen von Knochenzement | |
EP2596857B1 (de) | Lager- und Mischvorrichtung für Knochenzement | |
EP2987551B1 (de) | Austragsvorrichtung mit elastisch angetriebenem mischer und vefahren | |
EP1344500B1 (de) | Mehrkomponenten-Mischkapsel, insbesondere für Dentalzwecke | |
EP2510897B1 (de) | Misch- und Applikationskapsel zur Herstellung eines Dentalpräparates | |
EP2303758B1 (de) | Vorrichtung zum öffnen eines verschlossenen fluidbehälters | |
EP1257227B1 (de) | Mischkapsel | |
DE102014113816B3 (de) | Pasten-Applikationssystem zum Lagern zweier Ausgangskomponenten, zum Mischen der Ausgangskomponenten zu einer Paste und zum Applizieren der Paste sowie Verfahren zum Mischen und Austreiben einer Paste | |
DE8907335U1 (de) | Mischvorrichtung für Pasten | |
DE29923938U1 (de) | Vorrichtung zum Austragen eines pastösen Zweikomponenten-Gemisches | |
EP1651358B1 (de) | Vorrichtung zum auspressen und dosiertem aufbringen einer fliessfähigen pastösen masse | |
EP0087029A1 (de) | Vorrichtung zum Mischen von Dentalmassen | |
EP3260193B1 (de) | Lager- und mischvorrichtung für knochenzement mit druckpumpe, und verfahren zur vermischung eines knochenzements | |
EP0882436A1 (de) | Transport- und Verarbeitungsvorrichtung für Zweikomponentenmaterial | |
DE3920537C2 (de) | Mehrkomponenten-Mischkapsel mit Ausspritzeinrichtung für die gemischte Masse, insbesondere für Dentalzwecke | |
EP1520562B1 (de) | Vorrichtung zum Mischen und Austragen von flüssigen und pulverförmigen Materialien für die medizinische Verwendung | |
DE3233366A1 (de) | Vorrichtung zum mischen von dentalmassen | |
EP3260192A1 (de) | Lager- und mischvorrichtung zur herstellung eines knochenzements, und verfahren zur vermischung eines knochenzements | |
EP3153121A1 (de) | Vorrichtung und verfahren zum öffnen von glasampullen sowie zementiervorrichtung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20180615 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SULZER MIXPAC AG |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20191028 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20210202 |