EP1839016A1 - Dosiervorrichtung, insbesondere arzneimitteldosiervorrichtung und verwendung einer dosiervorrichtung - Google Patents
Dosiervorrichtung, insbesondere arzneimitteldosiervorrichtung und verwendung einer dosiervorrichtungInfo
- Publication number
- EP1839016A1 EP1839016A1 EP05847713A EP05847713A EP1839016A1 EP 1839016 A1 EP1839016 A1 EP 1839016A1 EP 05847713 A EP05847713 A EP 05847713A EP 05847713 A EP05847713 A EP 05847713A EP 1839016 A1 EP1839016 A1 EP 1839016A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metering
- chamber
- dosing
- adjusting
- rotary valve
- 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- Withdrawn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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/10—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation
- G01F11/12—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements
- G01F11/20—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements wherein the measuring chamber rotates or oscillates
- G01F11/24—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements wherein the measuring chamber rotates or oscillates for fluent solid material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
- B65B1/36—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods
- B65B1/363—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods with measuring pockets moving in an endless path
- B65B1/366—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods with measuring pockets moving in an endless path about a horizontal axis of symmetry
Definitions
- Dosing device in particular medicament dosing device and use of a dosing device
- the invention relates to a metering device, in particular for small-particle pharmaceutical preparations, for preparations in the form of pellets, granules or extrudates, in particular a drug metering device, in detail with the features of the preamble of claim 1; also a use of a metering device.
- Small-scale dosage forms of pharmaceutical preparations such as pellets, granules or extrudates
- a single dosage form can cover a wide dose range in which different quantities are filled or administered in appropriate capsules.
- such small particle pharmaceutical preparations are filled into capsules of hard gelatin, which are, however, opposite to the bulkware, i. the small particle pharmaceutical preparations, have a number of disadvantages.
- the water content of hard gelatin capsules must be greater than or equal to 10%, since the hard gelatin capsules can otherwise become brittle, so that they break in the packaging or when removing it from the packaging. This can lead to considerable stability problems with moisture-sensitive preparations, which often results in short shelf lifes.
- US Pat. No. 4,805,811 and EP-A 787 979 A1 each disclose a generic metering device with a chamber for receiving a larger quantity of a small-sized pharmaceutical preparation.
- a rotary valve is provided, on which a plurality of metering chambers are formed with predetermined volumes.
- one of the metering chambers is successively filled with a portion of the preparation contained in the chamber and again emptied when the metering slide rotates further.
- the outlet opening of the filled with the drug to be dosed chamber and the ejection port for the dosed preparation are arranged offset from one another in the axial direction. Different dosages are achieved in which a corresponding number of subsets with the aid of the rotary valve is removed from the chamber.
- EP-A 217390 A2, FR-2 380 536 and FR-2 380 537 each disclose a metering device which is equipped with a chamber filled with a small-particle pharmaceutical preparation, from which a metering chamber formed on a slide can be used or a Dosierspirale a defined, constant subset of the preparation can be removed from the chamber.
- Dosing is adjustable according to a defined subset.
- a punch is movable in a metering slide and adjustable in predetermined positions by means of a wedge-shaped cam. Similar dosing devices are known from GB 215 577 and GB 139 342.
- the dosing devices known from the prior art serve to dose a wide variety of preparations for a wide variety of uses.
- the structure and the design of the metering device is dependent on the consistency and properties of the drug to be dosed.
- the described embodiments are characterized by a complex structure and partly a complicated handling.
- some of the devices build due to the principle required large distances between the transfer opening from the filled with the drug to be dosed chamber and the discharge port for the dosed preparation very large, so they are cumbersome to handle, especially for the manual dosing of pharmaceutical preparations. This also applies to the constructive implementation of the partially provided different ways of changing the volume of the dosing and their movement between the filling and emptying.
- each independently operable actuating means for the Dosiervolumeneingnagnagnagnagnagnagnagnagnagnagnagnagnagnagnagnagnagnagnagnagnagnagnahyroidis and the movement of the metering chamber are provided, for the provision of the metering chamber appropriate measures are required, which are characterized by additional components and additionally required space.
- an automatic reset is realized only by operation against a biasing force, which in turn are to provide appropriate means.
- a metering device or a method for dosing, preferably self-dosing, small-particle pharmaceutical preparations, with or with a patient-oriented, individually and continuously adjustable exact dosage of a small particle pharmaceutical preparation or admispartikulärer pharmaceutical preparations is possible, wherein the metering device should be characterized by a compact design and easy handling.
- Claim 1 solved.
- An inventive use of the metering device is specified in claim 30.
- a dosing device for dosing small-particle pharmaceutical preparations which is characterized by an extension in the vertical direction and in the longitudinal direction, comprises at least one chamber for receiving a larger amount of the preparation and a dosing unit, comprising a rotary valve having at least one dosing chamber for receiving a defined subset of the preparation, wherein the metering chamber is movable between a filling position in which it is to be filled with preparation from the chamber and a delivery position in which the preparation is to be dispensed from the metering chamber from the metering device.
- the metering chamber is at least between an axis of rotation the filling and emptying position rotatably mounted and has a receiving opening for the preparation to be dosed, which in the filling position with a at least indirectly coupled to the chamber or this first transfer opening is aligned, and a discharge opening for the dosed preparation, which in the dispensing position is aligned with a further at least indirectly connected to an output opening from the metering device or forming this further second transfer opening.
- the transfer openings are arranged offset in the vertical direction to each other in the vertical direction of the metering device.
- the axis of rotation is arranged in the vertical direction between the two transfer openings and extends parallel or inclined to the longitudinal direction of at least one of the transfer openings, ie at an angle to the height direction.
- the volume of the dosing chamber for setting the dispensed from the dosing device defined subset of the preparation is adjustable. In the intermediate positions between filling and emptying the rotary valve acts as a locking device between the two
- Transfer openings ie upon rotation from the filling to the emptying position, a direct passage of the preparation between the transfer openings from the chamber to the discharge opening is avoided from the metering device.
- This makes it possible, on the one hand, an exact dosage of the preparation by means of the metering chamber itself, and not as usual, by repeatedly filling and emptying a relatively small metering chamber, make and on the other the displacement paths for the metering chamber, which correspond to at least one arc segment, To keep very short, which applies analogously to the arrangement of the transfer openings and their distances from one another, whereby the metering device can be kept very compact.
- the transfer openings due to the arrangement between the transfer openings and the substantially horizontal orientation of the axis of rotation, a simple guidance of adjusting devices for volume change in the metering chamber is possible, regardless of the position of the chamber. These can be easily accessible. Due to the adjustability of the dosing chamber, it is possible to carry out a patient-oriented individual adaptation of the doses, for example when dosing the preparation in relation to the body weight or when adjusting the dose to diumale needs. Furthermore, the dose of the preparation can be adjusted individually over a longer period of administration, so that preparations which have to be taken, for example, in an initial phase in larger doses, can be purposefully reduced over the period of administration. Similarly, patients may initially increase low doses gradually to the therapeutically necessary dose to improve tolerability. Of particular advantage is this flexibility of
- Suitable embodiments of the metering device according to the invention allow the dosage of pharmaceutical preparations, e.g. in the range of 40-800 mg or 0.4-8 g, preferably 50-750 mg, or 0.5-7.5 g.
- the axis of rotation is perpendicular to the height direction, i. aligned in the longitudinal direction or arranged to extend in a horizontal plane.
- the height direction describes while standing in the dosing device considered the vertical direction. This arrangement allows a particularly easy handling of such a metering device, since the standard position also corresponds to the usually handled operating position.
- the direction of height of the metering device in the vertical direction and under the longitudinal direction is understood to mean the extent in the axial direction, in particular in the corresponding axial section plane.
- the rotary valve is guided in the main body of the metering device in the longitudinal direction and preferably secured against displacement in the axial direction and rotatably supported in the circumferential direction, at least under the action of force.
- the basic body has an at least one open guide channel, but preferably in the form of a passage opening or a channel extending over the entire extension, which is at least in the area of the mounting position of the male Dosing chamber is characterized by circular cross-sections.
- the geometry of the guide opening in the region of the extent of the metering chamber in the longitudinal direction corresponds to the cross-sectional profile of the metering chamber over its extension in the longitudinal direction, preferably forming a gap seal in the circumferential direction between the
- the axial securing takes place via corresponding stops for the rotary valve and / or the coupled with these elements in the guide channel or the basic body forming and / or corresponding positively or non-positively acting means, such as clamping, snap, latch or bayonet connections.
- the axis of rotation is arranged parallel to the longitudinal axis of the first and second transfer opening; b) the axis of rotation is arranged inclined to the longitudinal axis of the first and second transfer opening.
- the metering chamber is characterized by a constant cross section in the longitudinal direction of the axis of rotation over its extension in the longitudinal direction, ie viewed over the extent of which it is parallel to the axis of rotation.
- the metering chamber is in the longitudinal direction of the axis of rotation about her Extension in the longitudinal direction characterized by a change in cross section, which is continuous.
- the design of the metering requires the required adjustment, which in case b) can be implemented to avoid jumps paragraphs in the Dosierhuntwandung insertable only in the metering insert elements to avoid unwanted leakage of metered preparation between the filling and emptying and in the Intermediate positions between filling and emptying position _ to ensure a gap seal between the dosing chamber and the environment.
- Dosing chamber limiting walls are preferably stationary in execution b).
- the dosing chamber is designed with a constant cross section in
- a change in volume can take place both by a displacement of a wall region forming the metering chamber and by displaceable insertion elements, for example wedge elements.
- the axis of rotation can be horizontal, i. be arranged transversely to the height direction or inclined relative to the horizontal plane. An orientation in the vertical direction, i. Height direction in the stand position of the metering device is excluded.
- first and second transfer opening to each other also exist a variety of ways. These are offset at least in an angular range of 20 ° to 220 °, preferably 90 ° to 200 ° to each other.
- the arrangement is made depending on the connection to the chamber and the discharge opening from the metering device, which are also incorporated in the main body. According to a particularly advantageous
- the first and second transfer openings are arranged offset at an angle of 180 ° to each other and in a vertical plane, free of an offset in the axial direction. Ie both are arranged one above the other.
- the dosing process, including delivery of the preparation is then characterized by half a rotation of the rotary valve about the axis of rotation.
- they are preferably According to a particularly advantageous embodiment in execution with offset by 180 ° arranged transfer openings at least two offset by 180 ° to each other, ie provided with respect to the axis of rotation symmetrically arranged metering chambers.
- a twisting of the first metering chamber from the filling to the emptying position simultaneously causes a rotation of the second
- Dosing chamber from the emptying position to the filling position Dosing chamber from the emptying position to the filling position.
- a particularly compact dosing device in the longitudinal direction can be designed, since all connection openings or channels can also run or be aligned with the transfer openings in the vertical direction. Furthermore, a rotation of 180 ° for the user is easy to handle and feel.
- the twist angle can be shortened by half. Furthermore, it is possible to dispense with adjusting mechanisms for returning the metering chamber due to the constantly advancing metering chambers.
- each rotational movement of a metering chamber from a filling to an emptying position causes a rotation of a further metering chamber from an inactive position into the filling position.
- Such embodiments are particularly suitable for magazine-like dosage and delivery of dosed preparation, which is characterized by short dosing times and the rapid succession of Dosiermengenab inter.
- the volume of the metering chamber is preferably infinitely adjustable. This is a suitability for different preparations, Dosiermengen and a wide range of applications.
- the metering unit comprises an adjusting device for adjusting the volume of the metering chamber, comprising at least one displaceably mounted adjusting element for changing the volume of the metering unit
- Dosing chamber which is parallel to the axis of rotation about an adjustment movable back and forth and a twisting device for moving the metering chamber between the filling position and the ⁇ bgabewolf.
- the adjusting element forms either an axially displaceable wall of the metering chamber, an insertion element for insertion into the metering chamber for reducing the
- volume or is connected to these elements, at least forming a structural unit.
- the adjustment can be designed in many forms. It is crucial that any desired specification in the form of any predetermined by the user size, which at least indirectly characterizes the required dosage, for example, an angle, a displacement or rotational movement is converted into a corresponding translational movement of the adjustment.
- a spindle drive is used as adjusting, the drive in the form of a cylindrical
- Adjusting drive in particular adjusting wheel is rotated by an angle corresponding to the desired volume change angle and this rotational movement is converted into a translational movement on the adjusting element.
- the adjusting drive in the form of the adjusting wheel is arranged coaxially to the axis of rotation and designed as a sleeve-like element which surrounds the rotary valve in the circumferential direction and at least partially in the axial direction.
- the adjusting wheel is preferably fixed in the axial direction. In the simplest case by a stop on the body, in particular the guide opening for the rotary valve and / or the rotary valve itself.
- the adjusting is free for the function of adjusting the volume change of a rotationally fixed
- the adjusting wheel is connected via a positive and / or non-positive connection with the adjusting element.
- the coupling via a corresponding thread, preferably a trapezoidal thread, which is arranged in each case on an inner circumference and on an outer periphery forming portion of adjusting and adjusting.
- the corresponding driving elements are provided on the inner circumference of the adjusting drive and on the outer circumference of the adjusting element.
- adjusting elements differ in the same basic geometry and the same basic position relative to the respective metering chamber in the longitudinal direction with respect to the arrangement of the driving elements. These are arranged offset in the axial direction by the angle of the two Dosierkammem corresponding pitch component of the thread. Otherwise, in the case of identically designed adjusting elements, these would have to be installed in different positions, which would, however, result in a reduction of the volume change range actually usable by all metering chambers.
- the first option is chosen to ensure the simultaneous adjustment of all metering chambers.
- the metering device is proposed to provide a stamp on the metering element which is displaceably mounted on the metering element and whose stamp head is movable back and forth to change the volume of the metering chamber.
- This stamp forms the adjusting element. Due to the spindle drive, it is possible to adjust the volume of the metering chamber from the outside without great effort. Furthermore, it is possible to display the position of the punch outside by providing a scale on the adjusting wheel, so that a very exact dosage of the preparation with a high repetition rate is possible.
- the scale can be, for example give a relation between the body weight and the dose of the drug.
- the twisting device comprises a drive which is rotatably connected to the rotary valve and causes rotation of the rotary valve during rotation.
- the drive is formed in the simplest case of an actuating element in the form of a Vermosrades, which is manually operable. This is designed sleeve-like, wherein the Vermosrad the rotary valve in -.
- rotary valve, twisting device and adjusting device are arranged in the sense of a short construction coaxial with the axis of rotation and with little offset from one another in the longitudinal direction.
- the actuating element of the adjusting device is formed by the turning device.
- the VerFrad acts as Portionierrad, which can take over two functions independently. These are characterized by two functional positions, wherein the portioning wheel is displaceable between them in the longitudinal direction. The portioning wheel is axially displaceable in the longitudinal direction relative to the adjusting device and the rotary valve. In the first operating position, the adjusting wheel of the adjusting device and the portioning wheel are non-rotatably connected to each other, wherein the connection is free from a rotationally fixed connection between the portioning and rotary valve. In the second functional position, the adjusting wheel, the portioning wheel and the rotary valve are rotatably connected.
- a dispensing container containing the pharmaceutical preparation can be detachably connected to the dispensing device, said reservoir filling the chamber with the preparation.
- the use of a separate storage container has the advantage that during storage the bulk goods in tight packaging - if useful with dry plugs - can be packed absolutely dry, i. Stability problems due to moisture are prevented.
- the metering device Only at the onset of the drug, the metering device is placed on the reservoir, so that the further stability of the preparation only for the consumption period (days to a few weeks) must be guaranteed. In case of interruption of the intake, the metering device can also be replaced by the stopper, which again a dense packaging is achieved.
- a bulk stability test for the longest life with the dosing device i. for the lowest dosage.
- An adapter can be used to ensure compatibility with a variety of reservoir designs.
- the dosing device In order to be able to dose several preparations in combination, it is proposed in a particularly preferred embodiment of the dosing device according to the invention to provide at least one further chamber for receiving a further small-particle pharmaceutical preparation, from which a subset of the further preparation is to be dispensed through the dispensing opening , This makes it possible, according to the number of additional chambers different preparations in a single operation to dose and mix in the right proportions.
- both metering units are preferably constructed identically in terms of the angle of rotation of the metering chambers and the rotary valves are mounted on a common axis of rotation and rotatably connected to each other.
- Both rotary valves can also use a common basic element, which then the respective adjusting elements, adjusting and twisting the individual dosing units are assigned to the end regions. In this way, the preparations can be dosed and mixed with each other by a single movement of the coupled via the rotary valve metering units.
- a separate metering unit which is autarkic with respect to the rotational movement, for each chamber.
- a child safety device on the dosing device for safety reasons, which prevents unwanted actuation, in particular of the dosing slide or rotary slide by children.
- a plastic material is preferably used, which can be used for the production of thin-walled injection molded parts. Preference is given here in particular to plastics from which no plasticizers or other volatile constituents dissolve, in order thus to avoid contamination of the medicament. In special cases, it may be useful to use a plastic material that is autoclavable.
- Figure 1a illustrates in a perspective view of a particularly advantageous embodiment of an inventively designed metering device
- Figure 1 b illustrates a sectional view according to Figure 1 a in the X-Y plane
- Figure 1c illustrates a view of the underside of the metering device
- Figure 2a illustrates a metering device according to Figure 1 in axial section
- FIG. 2 b illustrates the detailed one with reference to a detail from FIG. 2 a
- Figure 3a illustrates in a sectional view an adjusting wheel
- Figure 3b illustrates a view of the adjusting in the longitudinal direction
- Figures 4a and 4b illustrate the rotary valve with reference to two views
- Figure 5 illustrates the Portionierrad in an axial section
- Figures 6a and 6b illustrate in a schematically simplified representation possible arrangements of the axis of rotation
- FIG. 7 illustrates an embodiment with parallel-connected metering units.
- FIGS. 1 and 2 show a particularly compact embodiment of a dosing device 1 designed according to the invention for dispensing a defined subset of a small-particle pharmaceutical preparation.
- 1 a shows a perspective view
- FIG. 1 b shows a sectional view
- FIG. 1 c shows a view
- FIGS. 2 a and 2 b show an axial cross-section of the basic structure and function of this dosing device 1. Shown is the stand position, which is the preferred one
- the metering device 1 comprises a basic body 2, which can be detachably connected to a storage container 3 in the case shown directly or not shown here with the interposition of an adapter, and a metering unit 5 comprising at least one metering chamber 4, which comprises a rotary valve 6.
- the rotary valve 6 is about a rotation axis A. rotatably mounted forming axis.
- the axis of rotation A extends in this position of the metering device 1 at an angle, preferably perpendicular to a vertical plane, which is aligned perpendicular to the axial section plane in Figure 2.
- the embodiment according to Figures 1 and 2 includes two, symmetrically with respect to the axis of rotation A arranged metering chambers. These are designated 4 and 4 ' .
- the individual metering chamber 4 and 4 ' is rotatable in the main body 2 between a first functional position, which corresponds to a filling position, in the. it is to be filled with preparation from a chamber 7 arranged in the main body 2 or in the storage container 3, and a second functional position, which corresponds to the dispensing position in which the preparation is to be dispensed from the dosing chamber 4, 4 ' from the dosing device 1.
- the main body 2 has a guide channel 8, preferably in the form of a passage opening 9, in which the rotary valve 6 is rotatably arranged.
- This extends in the longitudinal direction of the metering device 1.
- the rotary valve 6 is preferably secured in the installed position with respect to its position in the longitudinal direction.
- the backup is done in the simplest case via positive elements, which at the same time allow rotation in the circumferential direction only by applying a predefined force;
- the fuse can also be secured by a groove in the base body 2 and a corresponding knob in the rotary valve 5.
- the main body 2 may be designed differently with respect to the geometry describing the outer circumference. Preferably, this is characterized in a view from above by a well-arranged for manual dosing in the hand cylindrical shape.
- Stand-aligned center axis is denoted by M2.
- a circumferential collar 12 From the top of the body 2 is a circumferential collar 12 from. Depending on the required type of connection between the reservoir 3 and the base body 2, this can extend parallel or not shown here at an angle to the center axis M2 of the base body 2.
- a reservoir 3 for the pharmaceutical preparation with its container opening 17 are releasably attached.
- the main body 2 starting from its upper side, ie the end face 13 to be connected to the reservoir 13, a chamber that tapers in a funnel shape symmetrically with respect to the center axis M2 of the main body 2 to the underside 19 of the main body 2, which corresponds to the chamber 7, is formed.
- the preferably symmetrically tapered chamber 7 merges into a first transfer opening 15, which opens into the transverse to the center axis M2 of the base body 2 and the Dosiervoocardi 1 extending guide channel 8 for the rotary valve 6. Due to the symmetrical construction of the chamber 7 it is achieved that the transfer opening 15 extends at a small radial distance from the wall of the main body 2 and nevertheless a uniform supply of preparation from the chamber 7 to the metering chamber 4, 4 'is ensured in the filling position.
- the transfer opening 15 is designed in the illustrated case as a slot 16, wherein this extends in its longitudinal direction parallel to the longitudinal direction of the guide channel 8 and in the filling position with a receiving opening 24, 24 'of the metering chamber 4, 4 ' aligned.
- a discharge opening 20 is recessed, which is aligned in the longitudinal direction of the guide channel 8, that is, parallel to the rotation axis A and with a second transfer opening 21, with the metering chamber 4, 4 ' in the emptying, in particular the
- Dispensing opening 25, 25 'of the metering chamber 4, 4 ' is aligned, connected or forms.
- the second transfer opening 21 is connected to the discharge opening 20 of the metering device 1 or forms this. This opens into the guide channel 8.
- First transfer opening 15, second transfer opening 21 and axis of rotation A are arranged parallel to each other and in the vertical direction one above the other. Both transfer openings 15, 21 are preferably arranged freely from one another in the longitudinal direction to each other.
- the rotary valve 6 is used, which is preferably fixed in the longitudinal direction of the channel 8 in terms of its position, however, is rotatable in the circumferential direction.
- Dosing chambers 4, 4 ' are formed by the same, ie a common opening.
- the inner contour of the guide channel 8 is the shape of the Rotary slide 6 adapted at least in the region of the extension of the metering chambers 4, 4 ' in the longitudinal direction and the required bearings.
- the rotary valve 6 carries the 180 ° offset from each other arranged Dosierkammem 4, 4 ' and acts as a shut-off between the transfer opening 15 and the transfer opening 21 to avoid the unhindered and undosed passage of preparations from the chamber 7 to the discharge opening 20. The transition is always with the interposition of the metering chamber 4 or 4 ' .
- the rotary valve 6 comprises a, the walls 11 of the metering chamber 5 at least partially forming base member 10 which is rotatably mounted in the base body 2.
- the base element 10 is constructed symmetrically with respect to two planes, each of which can be described by the axis of rotation A and perpendicular to it, one of the planes coinciding with the axial section plane, forming the longitudinally extending wall regions 11.1, 11.2, respectively Circumferentially extending wall portion 11.3, which limits the metering chamber 4 in the axial direction, ie longitudinal direction and one, the metering chamber 4 in the filling position in the vertical direction relative to the second transfer opening 21 bounding wall portion 11.4 of the metering chamber 4 or by analogy, the wall portions 11.1 ' , 11.2 ' ' The 11.3 ' and 11.4 'of the metering chamber 4.
- the rotary valve 6 is inserted in such a way in the guide channel 8, that in each case in the filling position of the individual Dosage chambers 4, 4 'of the respective slot 22, 22 ' at its open top, which forms the receiving opening 24, 24 'of the metering chamber 4, 4 ' , is connected to the transfer opening 15 and aligned.
- the metering chambers 4, 4 ' in the axial direction delimiting wall portions 11.5 and 11.5 ' are adjustable and are preferably formed by punches 23, 23 ' , which are each slidably received in the slots 22, 22 ' .
- the change of the volume of the individual metering chamber 4, 4 ' takes place by the axial displacement of the punches 23, 23 ' parallel to the axis of rotation A, ie in the longitudinal direction of the • > rotary valve 6.
- the punches 23, 23 ' are in the slots 22, 22nd ' led.
- the volume of the metering chamber 4,4 ' determining position of the wall portions 11.5, 1 1.5 ' is adjusted via an adjusting device 26 for volume adjustment.
- the rotation of the metering chambers 4, 4 ' via a twisting device 27.
- the adjusting device 26 and twister 27 are arranged taking advantage of shared usable elements in a particularly advantageous embodiment coaxial with each other and coaxial with the axis of rotation A.
- the adjusting device 26 comprises in a particularly advantageous manner a positioning system, in the simplest case in the form of a spindle drive 28, by means of which a rotational movement can be converted into a translational movement.
- This comprises a drive 29 in the form of a Verstellrades 30, which with an axially displaceable adjusting element 31, which is in the illustrated case in the form of the punch 23, 23 ' and the wall portion 11.5, 11.5 ' forms, via a ball or in the illustrated case Trapezoidal thread is coupled.
- the adjusting wheel 30 is designed like a sleeve according to a sectional view dgrch this in Figure 4b and surrounds the rotary valve 6 in the circumferential direction over a portion of its extension in the longitudinal direction.
- the adjusting 30 takes over the function of the spindle of a spindle drive, which remains unchanged in its position in the axial direction, but in the circumferential direction of the rotary valve 6 against this rotatable, free of a rotationally fixed coupling with the base member 10 of the rotary valve 6 and thus the It has a thread 33 on an inner circumference 32 forming part region, preferably over the entire inner circumference 32. This is in terms of design and dimensioning complementary to the adjusting elements 31, 31 ' arranged entrainment elements 34, 34 ' executed.
- the pitch of the thread 33 determines the sensitivity of the setting. If a small pitch is selected and thus a multiplicity of threads, a rotation of the adjusting wheel 30 in relation to a design with a large pitch at the same angle of rotation causes only a slight "translational movement. In the simplest case, a trapezoidal thread is used, which is self-locking.
- Adjusting elements 31, 31 ' in the form of the punches 23, 23 ' are embodied as thread segments which are designed to be complementary to the thread 33 and extend over a partial region of the area region extending in the circumferential direction in the installed position and oriented in the radial direction from the axis of rotation A.
- at least two such entrainment elements 34, 34 ' are provided on an adjusting element 31, 31 ' for safe guidance.
- Figure 3b illustrates the rotary valve 6 without environment in the longitudinal direction. From this, the basic element 10 as well as both adjusting elements 31, 31 ' and the driving elements 34, 34 ' can be seen.
- the thread segments 34, 34 ' at the two punch elements 23, 23 ' in this case must be offset by half a thread, ie, almost half the slope.
- the driving elements 34, 34 ' at the same position of the adjusting elements 31, 31 ' .
- the partial gear areas must be positioned correspondingly to each other as a function of the angle, ie the carrier element 34 must despite offset _ arrangement in the circumferential direction with the thread 33 on the adjusting 30 in engagement.
- the base member 10, in particular the rotary valve 6 is preferably by means of appropriate positive or non-positive elements, over
- Locking means held in the sole adjustment of the metering volume in its position in the circumferential direction.
- the locking means 35 are in the illustrated case in the form of on the outer circumference 36 of the base member 10 and the rotary valve 6 in the adjusting element 34, 34 ' arranged free region projections 37, which with correspondingly complementary recesses 38 on
- Inner circumference 39 of the guide channel 8 cooperate. These are arranged in the region of the metering chamber level.
- the adjusting wheel 30 is supported in the longitudinal direction on the base body 2 of the metering device 1, for example, a stop 67 and the rotary valve 6 or is fixed by this environment in the axial direction.
- the rotary valve 6 is designed for assembly and processing reasons at least two parts in the longitudinal direction.
- This comprises the base member 10 which is rotatably connected to a cover 40, in the illustrated case in the form of fasteners 41, 42 in the form of screws.
- the cover 40 forms with the end facing the metering device 43 a stop 44 for the adjusting wheel 30 in longitudinal -. axial direction.
- the twisting device 27 includes a Vermosrad 45. This is rotatably connected to the rotary valve 6 connectable.
- the connection is positive or positive, in the illustrated case via a longitudinally aligned and extending in the circumferential direction splines 50th
- This consists of complementary to the elements to be joined together - Vercardrad 45 and rotary valve 6 - formed toothing elements.
- the Verfrad 45 is designed like a sleeve and encloses in the installed position the adjusting wheel 30 and the rotary valve 6 at least partially in the longitudinal direction and in the circumferential direction.
- the toothed elements are arranged on the outer circumference of the rotary valve 6, here the outer periphery 46 of the lid 40 and the inner periphery 47 of the Vercardrades 45.
- the toothing region on the inner circumference 47 of the twisting wheel 45 extends in this case over a partial region in the longitudinal direction.
- the twisting wheel 45 functions as a portioning wheel 49 and takes over the function as an actuating element for rotating as well the function of the actuating element 48 for the drive 29 of the adjusting device 26, in particular the adjusting 30.
- the Verdungrad 45 designed as Portionierrad 49 can be brought at least in two functional positions - a first, which is characterized by the Volumenvoraus inches and in which the Portionierrad 49 rotatably with the adjusting wheel 30 is connectable.
- the connection is generated by corresponding complementary arranged on both and engageable with each other force or positive locking elements. Twisting wheel 45 or portioning wheel 49 and adjusting wheel 30 are designed to be displaceable relative to one another in the axial direction, the connection 51 being produced by connecting elements which can be brought into operative connection with one another.
- this first functional position I which is shown in FIGS. 2a and 2b in the detailed illustration of FIG.
- the toothing 50 on the inner circumference of the twisting wheel 45 or Des Portionierrades 49 is designed and arranged such that it has an extension in the longitudinal direction which is greater than the extension of the complementary toothing 53 on the outer circumference 52 of the adjusting wheel and still a shift relative to the Adjusting 30 allows such that the connection is canceled over this teeth 50 with the rotary valve 6.
- the portioning wheel is displaced in the axial direction relative to the adjusting wheel 30, specifically in the direction away from the metering device 1.
- the toothing 50 on the inner circumference 47 of the portioning wheel 49 engages both with the toothing 53 on the outer circumference 52 of the adjusting wheel 30 and with the rotary slide 6, in particular with the toothing 54 on the outer nose catch 46 of the lid 40.
- the two functional positions I and II are fixed in the axial direction by positive or non-positive elements, in the illustrated case via corresponding latching means 55 and 56 in the axial direction and adjustable. These are by mutually engageable projections and recesses on the outer circumference 52 of Verstellrades 30 and the inner circumference 47 of the Portionierrades 49.
- the functional position I these are designated 55 and comprise in the illustrated case over at least a portion of the outer periphery 52 of the adjusting 30 in Circumferentially extending projections 57 which cooperate with circumferentially extending recesses 58, in the illustrated case a recess 58 on the inner periphery 47 of the portioning wheel 49.
- the functional position II which is characterized by displacement of the portioning wheel 49 in the axial direction, ie longitudinal direction away from the metering device 1, ie in the direction of the cover 40.
- the second functional position is characterized by the engagement of the latching means 56.
- the displacement s corresponds to the distance a between the latching means 55 of the first functional position I and the latching means 56 of the second functional position II.
- the latching means 56 comprise on the outer circumference 52 in the axial direction to the projections 57 staggered projections 59. These are preferably parallel to arranged the locking means 55 and cooperate with the recess 58 on the portioning 49.
- the adjustment a is chosen such that the spline 50 engages the inner periphery 47 of the portioning wheel 49 in both the teeth 53 and the teeth 54 and under force, ie manual
- a scaling 61 for the volume is provided on the portioning wheel 49 or on the cover 40.
- the portioning wheel 49, in particular the scaling 61 is in the neutral position, ie also at the maximum or minimum volume of the metering chamber, in the neutral position for the specific volume.
- FIG. 1 b illustrates a sectional view A-A according to FIG. 1 a, FIG. 1 b shows a view of the underside 19 of the metering device 1.
- FIGS. 3 to 5 Reference has already been made to FIGS. 3 to 5. Below is pointed out again to some details. The reference numerals used in FIGS. 1 and 2 have been adopted for the same components.
- the figure 3a illustrates - as already stated - a rotary valve 6 in perspective view.
- the basic element 10 and guided in the slot 22 punch 23 in the form of the adjusting element 31 dosing chamber 4, in particular their wall portions 11.1, 11.2, 11.3 and 11.5.
- the adjusting element 31 carries the driving elements 34.
- the rotary valve 6 is designed at least in two parts and, in addition to the basic element 10, comprises the cover 40, which is connected with it in a rotationally fixed manner.
- 3b illustrates a view in the longitudinal direction of the rotary valve 6, which is particularly to the different configuration of the driving elements 34, 34 ' at the offset in the circumferential direction adjusting elements 31, 31 ' is always indicative of the configuration of the thread 33 on the adjusting 30th , In particular, the slope or the course at offset to adapt to the corresponding gear range.
- Figures 4a and 4b illustrate the Verstellrad 30 in a longitudinal view and an axial section.
- the adjusting wheel 30 has over its extension in the longitudinal direction of a constant inner diameter at which preferably over the entire extension in the longitudinal direction, the thread 33 is arranged.
- the adjusting wheel 30 is characterized by at least two different functional areas 62 and 63, wherein the functional area 62 of the realization of a rotationally fixed connection 51 with the Portioning wheel 49 is used.
- a toothing 50 complementary to the toothing 50 on the portioning gear 49 is provided in this area on the outer circumference 52. This runs over the entire outer circumference 52 in this region 62 in the circumferential direction.
- the functional region 63 is characterized by the design of the latching means 55, in particular of the projections 57 and 50, which fix the functional positions of the portioning wheel 49 in the axial direction.
- the Einrasteades Portionierrades 49 is preferably supported by its elastic configuration in the fixing area.
- the portioning wheel 49 which is shown in axial section in FIG. 5, has different inside diameter ranges.
- a first diameter range 64.1 is characterized by an inner diameter d64.1 i, which is the same, preferably larger than the tooth tip diameter of the outer toothing on the rotary valve 6, in particular on the cover 40.
- the axial extent a64.1 is equal to or greater than the width of the lid 40 in FIG.
- the axial extent a64.2 corresponds at least to the displacement path s between the functional positions I and II, preferably the sum of the overlap or the engagement length of the toothing in the first functional position I and the displacement path s.
- the inner diameter d64.3i is greater here than that of the areas 64.1 and 64.2.
- the fourth functional area 64.4 is characterized by a small wall thickness, so that the inner diameter d64.4i can preferably be selected according to a clearance but also a press or transition fit to the outer circumference 52 of the adjusting wheel.
- these areas carries the locking connection provided on the inner circumference 47 groove-shaped in the circumferential direction recess 58, which is formed by two circumferentially extending, mutually parallel and extending to the axis of symmetry beads 66. Due to the small wall thickness in the range 64.4 and the consequent elasticity they are movable over the projections 57 and 59 depending on the desired functional position I or II and form when receiving the projections in the recess 58 nevertheless with the outer periphery of the adjusting 30 an interference fit.
- the teeth on the outer circumference 52 in the region 62 of the adjusting wheel 30 and on the outer periphery 46 des- cover 40 are the same size
- FIGS 1 to 5 illustrate a particularly advantageous embodiment of a metering device, 1. Modifications are conceivable.
- Figures 6a and 6b illustrate in a schematically simplified representation of possible arrangements of the axis of rotation A generally related to the
- FIG. 6a illustrates an embodiment with a parallel arrangement of the axis of rotation A with respect to the axis of the transfer openings 15 and 21 describing the extent in the longitudinal direction. However, these extend inclined in the longitudinal direction.
- the axis of rotation A and thus also the guide channel 8 are thus also designed to be inclined in the longitudinal direction and also inclined relative to the height direction.
- the dosing chamber not shown here, a constant cross-sectional profile in the longitudinal direction.
- FIG. 6b illustrates an embodiment with a horizontal arrangement of the axis of rotation A, ie perpendicular to the vertical or vertical direction, but inclined to the transfer openings 15 and 21.
- the metering chambers are then characterized by a continuously changing cross-sectional profile in the longitudinal direction. This is to be considered in the design of the rotary valve 6.
- FIG. 7 illustrates, by way of example, a parallel connection of two metering units 6, 6 ' in a metering device 1, comprising two chambers 7, 7 ' to be metered with the product to be metered.
- the metering device comprises two functional units 68 and 69, which are connected in parallel and correspond in each case with the discharge opening 20.
- two chambers 7, 7 ' are designed for two different preparations, so that a combination preparation with individual dosing of the individual components can be carried out.
- the storage container 3 is preferably made of an easily processed plastic material from which, however, no plasticizers or other volatile components may dissolve, so as to avoid contamination of the drug, wherein the plastic material is to be processed, for example by injection molding. Furthermore, the material should be autoclavable so that it can be disinfected if necessary.
- the dispenser according to the invention can be refilled with refill packs after application of the entire dose, costs are also saved in long-term therapy since the costs for individual capsules are eliminated.
- denser Packaging optionally with drying agents, a significant improvement in stability can be achieved.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005001001A DE102005001001A1 (de) | 2005-01-07 | 2005-01-07 | Dosiervorrichtung, insbesondere Arzneimitteldosiervorrichtung und Verwendung einer Dosiervorrichtung |
PCT/EP2005/014155 WO2006072460A1 (de) | 2005-01-07 | 2005-12-31 | Dosiervorrichtung, insbesondere arzneimitteldosiervorrichtung und verwendung einer dosiervorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1839016A1 true EP1839016A1 (de) | 2007-10-03 |
Family
ID=36143488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05847713A Withdrawn EP1839016A1 (de) | 2005-01-07 | 2005-12-31 | Dosiervorrichtung, insbesondere arzneimitteldosiervorrichtung und verwendung einer dosiervorrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US8297477B2 (de) |
EP (1) | EP1839016A1 (de) |
JP (1) | JP4847470B2 (de) |
CA (1) | CA2592601A1 (de) |
DE (1) | DE102005001001A1 (de) |
WO (1) | WO2006072460A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008113201A2 (de) * | 2007-03-22 | 2008-09-25 | Wirz Felix | Verfahren und einrichtung zur gewinnung mechanischer energie |
ITBO20070663A1 (it) * | 2007-09-28 | 2009-03-29 | Marchesini Group Spa | Apparecchiatura per il dosaggio volumetrico di prodotti granulari o polverulenti entro un contenitore |
GB2480491A (en) * | 2010-05-21 | 2011-11-23 | Fergus John Edward Magennis | Measured powder dispenser |
GB201020646D0 (en) * | 2010-12-06 | 2011-01-19 | Molins Plc | Apparatus for dispensing powder |
US8439231B2 (en) * | 2011-04-21 | 2013-05-14 | Easy Go Dispenser, Llc | Powder measuring and dispensing apparatus |
US9150345B2 (en) * | 2012-03-23 | 2015-10-06 | Western Digital Technologies, Inc. | Fastener container to provide fasteners to a fastener feeder |
CN108190066A (zh) * | 2018-02-23 | 2018-06-22 | 北京恒安众生科技有限公司 | 颗粒制剂的调剂瓶头、调剂装置和调剂系统及调剂方法 |
CN112830117B (zh) * | 2020-12-31 | 2021-11-26 | 徐州亚兴医疗科技有限公司 | 一种连续催化装置用原料罐 |
CN113522382A (zh) * | 2021-06-03 | 2021-10-22 | 北京慧荣和科技有限公司 | 一种盐粉末定量添加装置 |
CN114046853B (zh) * | 2021-11-29 | 2023-09-26 | 三一汽车制造有限公司 | 料位计固定座、料仓设备和搅拌设备 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
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GB139342A (en) * | 1919-04-11 | 1920-03-04 | Matthew Richard Scanlan | Improvements in or relating to means or apparatus for delivering measured quantities of powdered granular or pulverulent substances |
GB215577A (en) * | 1923-05-14 | 1924-05-15 | Arthur Samuel Legg | Improvements in and relating to apparatus for delivering measured quantities by volumes of pulverulent and other solid materials |
US2352809A (en) * | 1942-11-30 | 1944-07-04 | Stokes Machine Co | Feed device for powdered material |
DE807722C (de) | 1949-03-12 | 1951-07-02 | Esch Werke Kg | Zellenschleuse |
US2761589A (en) * | 1954-05-12 | 1956-09-04 | Stach Benedict | Seed sowing machine |
US2975942A (en) * | 1958-12-15 | 1961-03-21 | Sherwin Williams Co | Metering dispensing valve |
US3101853A (en) * | 1961-01-11 | 1963-08-27 | Gen Mills Inc | Rotary valve |
DE6904294U (de) | 1969-02-05 | 1969-06-26 | Franz Stadler | Dosiervorrichtung fuer pulveriges bzw. koerniges gut |
GB1316174A (en) * | 1970-08-04 | 1973-05-09 | Fleet Electronics Ltd | Apparatus for the periodic release of pellets in pill tablet or capsule form |
FR2259356A1 (de) | 1974-01-28 | 1975-08-22 | Hamburger Unterland Gesellacha | |
US4013199A (en) * | 1975-07-28 | 1977-03-22 | General Electric Company | Measuring dispenser |
US4023715A (en) * | 1975-09-02 | 1977-05-17 | Engelhard Minerals & Chemicals Corporation | Measuring and dispensing device |
US4237884A (en) * | 1978-03-17 | 1980-12-09 | Victor Erickson | Medication dispenser |
US4273254A (en) * | 1979-01-23 | 1981-06-16 | Brian Cuppleditch | Device for containing and dispensing particles such as tablets |
GB2067165A (en) | 1980-01-09 | 1981-07-22 | Conair | Additive metering device for plastics moulding process |
US4805811A (en) * | 1985-03-29 | 1989-02-21 | Aktiebolaget Draco | Dosage device |
US5255786A (en) * | 1992-10-08 | 1993-10-26 | The Procter & Gamble Company | Package having a sliding closure for dispensing pill or pellet type products |
FR2717453B1 (fr) * | 1994-03-17 | 1996-04-12 | Materiel Ste Tech Exploit | Tube distributeur de granules. |
DE29601697U1 (de) * | 1996-02-01 | 1996-03-21 | Bramlage Gmbh | Spender für rieselfähige Produkte |
JPH11316147A (ja) * | 1998-04-30 | 1999-11-16 | Michio Seki | 粉末及び顆粒子、粒状のものを計量することのできる計量器 |
US6293440B1 (en) * | 2000-11-14 | 2001-09-25 | Steven K. Weaver | Dispenser for granular materials |
US6779480B2 (en) * | 2001-06-25 | 2004-08-24 | David B. Zamjahn | Dial indicator cap |
DE20204267U1 (de) * | 2002-03-16 | 2002-08-08 | Neumann Andreas | Teeportionierer |
CA2433349C (en) * | 2003-06-25 | 2008-06-03 | Hygiene-Technik Inc. | Metering ball-valve with biased housing |
-
2005
- 2005-01-07 DE DE102005001001A patent/DE102005001001A1/de not_active Ceased
- 2005-12-31 EP EP05847713A patent/EP1839016A1/de not_active Withdrawn
- 2005-12-31 US US11/721,002 patent/US8297477B2/en active Active
- 2005-12-31 WO PCT/EP2005/014155 patent/WO2006072460A1/de active Application Filing
- 2005-12-31 CA CA002592601A patent/CA2592601A1/en not_active Abandoned
- 2005-12-31 JP JP2007549830A patent/JP4847470B2/ja active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2006072460A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102005001001A1 (de) | 2006-07-20 |
US20100044398A1 (en) | 2010-02-25 |
JP4847470B2 (ja) | 2011-12-28 |
CA2592601A1 (en) | 2006-07-13 |
JP2008526629A (ja) | 2008-07-24 |
WO2006072460A1 (de) | 2006-07-13 |
US8297477B2 (en) | 2012-10-30 |
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