JP2015000106A - Dispensing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure that the height of a discharge port can be changed by a simple mechanism in a dispensing device such as a liquid medicine dispensing device.SOLUTION: A liquid medicine dispensing unit 26 comprises a discharge port level changing mechanism 44. The discharge port level changing mechanism 44 comprises: a clamp member 46 that holds a connecting part (an upper end part) of a discharge tube 40; and a clamp member 48 that holds a lower end part of the discharge tube 40. The clamp member 48 is vertically driven by an actuator 50. When the clamp member 48 moves upward, an intermediate part of the discharge tube 40 deforms. At this time, the height of a discharge port 40A is raised upward.

Description

  The present invention relates to a dispensing device, and more particularly to a liquid medicine dispensing device that dispenses one or more liquid medicines according to a prescription.

  Various apparatuses have been put into practical use as dispensing apparatuses. In the dispensing field, liquid medicine dispensing devices are used as dispensing devices. The liquid medicine dispensing device is also referred to as a liquid medicine dispensing device, a liquid medicine discharge device, or the like. Such a liquid medicine dispensing device is installed in a pharmacy department of a hospital, a dispensing pharmacy, etc., and a liquid medicine (generally containing excipients such as syrup and water) is used as an original container (liquid medicine bottle, original bottle, etc. ) To a medication container (prescription bottle, dispensing bottle, etc.).

  In the liquid medicine dispensing device described in Patent Document 1, a plurality of original containers are held in an inverted state, and each original container is provided with a discharge nozzle (discharge tube) that linearly extends downward. The dispensing nozzle is positioned immediately below the original container containing the liquid medicine to be dispensed, and then the valve provided in the discharge nozzle is opened while increasing the internal pressure in the original container, thereby discharging nozzle Liquid medicine is poured into the medication bottle. A weight sensor is provided on the medication bottle side, and the discharge amount is managed based on the detected value. A discharge port is formed at the lower end of the discharge nozzle, and when the medication bottle is positioned directly below, a gap of, for example, about 5 mm is formed between the upper opening (top level) of the medication bottle and the discharge opening. The A mechanism for switching the holding height according to the type is provided on the side of the medication bottle, and the height of the medication bottle can be manually switched. The discharge nozzle is configured as a straight tube. The height of the original container is maintained at the time of dispensing, and the height of the discharge port of the discharge nozzle is always constant. In the liquid medicine dispensing device disclosed in Patent Document 1, the gap is formed between the medication bottle and the discharge nozzle in order to prevent the discharge nozzle from colliding with the medication bottle during the horizontal movement of the medication bottle. is there. In addition, it is also possible to horizontally move (for example, rotational movement) a plurality of liquid medicine containers without horizontally moving the medication bottle, and even with such a configuration, it is possible to switch the liquid medicine to be dispensed ( Patent Documents 2 and 3).

JP 2009-112673 A JP 2007-319382 A WO2011 / 118835

  In the liquid medicine dispensing process, when a change occurs in the discharge state (for example, when the liquid medicine container is emptied, and bubbles or film generated thereby reach the lower end of the discharge nozzle and they burst), the discharge port Liquid medicine may erupt. At that time, if there is a vertical gap between the discharge port and the upper opening of the prescription bottle, the sprayed liquid medicine may be scattered outside via the gap.

  In order to prevent this, after positioning the medication container in the horizontal direction (or after positioning the target liquid medicine container), the medication bottle is displaced slightly upward, and the lower end of the discharge nozzle is opened at the top of the medication bottle. It can be considered to be plugged in. According to such a configuration, even if the liquid medicine scatters in the horizontal direction from the discharge port, the liquid medicine can be accommodated in the medication bottle. However, since it is necessary to move up and down to another mechanism (for example, a weight sensor) on the medication bottle side, the mechanism becomes complicated. On the other hand, it is conceivable to change the height of the liquid medicine container side, but the mechanism becomes complicated. There is a demand to avoid providing a complicated mechanism only for raising and lowering the height of the discharge port slightly. It is desired to realize a mechanism capable of pulling down not all of the discharge nozzles but a necessary portion. This problem is also pointed out in general dispensing devices other than liquid medicine dispensing devices.

  An object of the present invention is to prevent splashing of liquid medicine from a discharge tube by a simple mechanism in a dispensing device. Alternatively, an object of the present invention is to realize partial elevation of the discharge tube.

  The dispensing apparatus according to the present invention desirably includes a first container holding mechanism that holds the first container, a connection portion that is continuous with the first container, a lower end portion that includes a downward discharge port, the connection portion, and the A discharge tube having an intermediate portion between the lower end portion, a second container holding mechanism for holding a second container that receives the liquid discharged from the discharge port, and the connection by changing the form of the intermediate portion A height changing mechanism that changes the height of the lower end portion while maintaining the height of the portion. Preferably, the dispensing device is a device that dispenses liquid medicine as the liquid according to a prescription, the first container is a liquid medicine container, and the second container is a medication container.

  According to the said structure, it is possible to change the form of the intermediate part in a discharge tube, and to change the height of a lower end part, especially the height of a discharge outlet. Therefore, there is an advantage that it is not necessary to raise and lower the first container and the second container for changing the height of the discharge port. However, in addition to the above configuration, a mechanism for raising and lowering the first container and the second container may be added. In any case, the height of the discharge port can be freely changed by a simple method of changing the shape of the intermediate portion of the discharge tube. Examples of the shape change of the intermediate portion include bending deformation, bulging deformation, expansion / contraction deformation, and the like. Desirably, at least the intermediate portion is made of a plastically deformable material or an elastically deformable material. When a double tube structure is employed, the two tubes can be made of a hard material. In addition, the size of a connection part and a lower end part can be defined arbitrarily, and they may be a quite small area. If they are made small, the length of the intermediate portion can be sufficiently secured, so that stress concentration accompanying deformation of the intermediate portion can be avoided. Desirably, the discharge tube has a straight shape extending vertically downward with the discharge port lowered.

  Preferably, the height changing mechanism inserts the discharge port into the opening of the second container before discharging, and pulls the discharge port out of the opening of the second container after discharging. According to this configuration, even when liquid is ejected from the discharge port in the horizontal direction, the liquid can be retained in the second container. The problem of scattering to the outside can be solved or reduced. The amount of insertion into the opening is determined from the variable amount of the vertical size of the intermediate portion. In the lowered state, the discharge port level may coincide with the opening level of the second container, or the discharge port level may be set higher than the opening level of the second container. Even in such a case, liquid scattering can be reduced by bringing the discharge port close to the opening.

  Preferably, the height changing mechanism includes: a first clamp member that clamps the connection portion; a second clamp member that clamps the lower end portion; and the first clamp member that raises and lowers the second clamp member; An elevating mechanism that changes the form of the intermediate portion between the second clamp member and the second clamp member. Preferably, the first clamp member is a fixed clamp member, and the second clamp member is a movable clamp member. It is also possible to move the first clamping member. In the discharge tube, the upper section including the first clamp part by the first clamp member can be considered as the connection part. Further, in the discharge tube, the lower section including the clamp portion by the second clamp member can be considered as the lower end portion. The intermediate portion corresponds to a section sandwiched between the first clamp member and the second clamp member. All or part of the shape changes. Desirably, a lower end part is hold | maintained by a 2nd clamp member or another member so that direction of a discharge outlet may become appropriate. Desirably, the discharge port faces directly below, but may be directed obliquely. The pinch valve may also serve as the second clamp member.

  Preferably, the intermediate portion is shortened in the vertical direction when the second clamp member is raised, and the intermediate portion is lengthened in the vertical direction when the second clamp member is lowered. Preferably, the intermediate portion is curved when the second clamp member is raised, and the intermediate portion is linear when the second clamp member is lowered. It is desirable to add a mechanism for defining the bending direction. Preferably, the intermediate portion swells when the second clamp member is raised, and the intermediate portion is linear when the second clamp member is lowered. If the internal space of the intermediate portion is expanded, it is possible to prevent the liquid from flowing out from the inside as the intermediate portion is deformed. In any case, it is desirable to configure so that no dripping occurs when the intermediate portion is deformed. Preferably, the intermediate portion has a fixed portion and a movable portion, and one portion of the fixed portion and the movable portion is partially inserted into the other portion, and the second clamp member is raised. The amount of insertion becomes large, and the amount of insertion becomes small when the second clamp member is lowered. According to this configuration, the fixed part and the movable part relatively slide. It is desirable that the two are sufficiently sealed.

  ADVANTAGE OF THE INVENTION According to this invention, in a dispensing apparatus, scattering of the liquid medicine from a discharge tube can be prevented with a simple mechanism. Alternatively, partial elevation of the discharge tube can be realized.

It is a figure which shows the principal part structure of the liquid medicine dispensing apparatus which concerns on this invention. It is a figure which shows the structure of a liquid medicine dispensing unit. It is a figure which shows the state which pulled down the discharge outlet. It is a horizontal sectional view showing a clamp mechanism. It is a vertical sectional view showing a clamp mechanism. It is a flowchart which shows the operation example of the liquid medicine dispensing apparatus shown in FIG. It is a figure which shows 2nd Embodiment. It is a figure which shows 3rd Embodiment.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings.

  FIG. 1 shows a preferred embodiment of a dispensing device according to the present invention. The dispensing apparatus shown in FIG. 1 is a liquid medicine dispensing apparatus. This liquid medicine dispensing device is a device that dispenses one or a plurality of liquid medicines into a medication bottle according to a prescription, and the liquid medicine device is provided in a drug department or a dispensing pharmacy in a hospital. Of course, the present invention may be applied to a dispensing device other than the liquid medicine dispensing device.

  In FIG. 1, the liquid medicine dispensing device 10 includes a moving body 14 that moves in a horizontal direction on a transport table 12. The moving body 14 has a medication bottle 18 and a holder 16 in this embodiment. The holder 16 holds the medication bottle 18, and a weight sensor 20 is provided in the holder 16. The medication bottle 18 is a container that receives one or more liquid medicines to be dispensed according to a prescription. A mouth portion having an opening 18A is provided at the upper portion, and a lid (not shown) is attached to the mouth portion.

  A transport mechanism for transporting the moving body 14 in the horizontal direction is provided below the transport table 12. In the present embodiment, the medication bottle 18 moves in the horizontal direction, whereby the medication bottle 18 is positioned directly below the liquid medicine bottle to be dispensed. Of course, the liquid medicine discharge state may be formed by fixing the medication bottle 18 and moving the liquid medicine bottle. For example, in such a case, a plurality of liquid medicine bottles may be installed on the rotary table, and a desired liquid medicine bottle may be selected by rotating the rotary table.

  In the liquid medicine dispensing apparatus 10 shown in FIG. 1, the rotating unit 22 includes a rotating plate 24 and a plurality of liquid medicine dispensing units 26, 28, and 30. The rotating plate 24 is a plate that rotates around its horizontal axis. When a plurality of liquid medicine bottles are set on the rotating plate 24, the rotating plate 24 is in an upright state. On the other hand, when dispensing liquid medicine, the rotating plate 24 rotates and becomes inverted. That is, as shown in FIG. 1, a state in which a plurality of liquid medicine bottles 32 are inverted is formed. It is also possible to agitate a plurality of liquid medicines by rotating the entire rotating unit 22.

  In the present embodiment, three liquid medicine dispensing units 26, 28 and 30 are provided for the rotating unit 22. Each liquid medicine dispensing unit 26, 28, 30 has the same configuration. In the following description, the liquid medicine dispensing unit 26 will be representatively described.

  The liquid medicine dispensing unit 26 has a holding member 34 that holds the liquid medicine bottle 32. The liquid medicine bottle 32 is detachably held with respect to the rotary unit 22 by the holding member 34 and other structures. Liquid medicine is accommodated inside the liquid medicine bottle 32, and a cap 32 </ b> A is attached to the opening of the liquid medicine bottle 32. An air tube 36 and a discharge tube 40 are provided so as to penetrate the cap 32A. The air tube 36 feeds air from a pump (not shown) into the liquid medicine bottle 32. As a result, the internal pressure of the liquid medicine bottle 32 is increased, and the liquid medicine is fed from the liquid medicine bottle 32 into the discharge tube 40. However, various methods can be used as the liquid medicine discharge method. The pressure sensor 38 is provided in the middle of the air tube 36 and monitors the pressure in the air tube 36. A check valve or the like is provided at an end of the air tube 36 in the liquid medicine bottle 32.

  The discharge tube 40 extends downward along the central axis of the liquid medicine bottle 32 as a whole. A portion thereof is curved in the state shown in FIG. Specifically, the discharge tube 40 includes a connection portion, an intermediate portion, and a lower end portion provided from the upper side to the lower side, that is, includes three sections. The tip of the lower end portion is the discharge port 40A. The discharge tube 40 is made of, for example, a transparent material, particularly a flexible material. As will be described later, as long as the intermediate portion can be deformed, the other portions can be made of a hard material.

  A pinch valve 42 is provided at a connection portion (upper end portion) of the discharge tube 40. The pinch valve 42 closes the flow path by sandwiching the upper end portion. The pinch valve 42 is fixedly disposed on the rotary unit 22.

  The discharge port level varying mechanism 44 is a mechanism that varies the height (level) of the discharge port 40A as a result by changing the form of the intermediate portion in the present embodiment. In other words, the discharge port level varying mechanism 44 is a mechanism that raises and lowers the discharge port 40A up and down with the partial form of the discharge tube 40 being variable. The discharge port level varying mechanism 44 includes a clamp mechanism 46 that holds the connection portion and a clamp mechanism 48 that holds the lower end portion. Moreover, it has the actuator 50 which moves the clamp member 48 to an up-down direction. In the present embodiment, the clamp member 46 is a fixed member that does not move up and down, and the clamp member 48 is a movable member that moves up and down. A section sandwiched between the clamp member 46 and the clamp member 48 is an intermediate portion. That is, the clamp part held by the clamp member 46 is a part of the connection part, and the part held by the clamp member 48 is a part of the lower end part.

  In the present embodiment, as will be described below, the medication bottle 18 is positioned immediately below the liquid medicine bottle to be dispensed, and thereafter, the clamp member 48 is pulled downward so that the intermediate portion is straight. Thus, the height of the discharge port 40A is lowered. In this state, the discharge port 40A is inserted into the opening 18A of the medication bottle 18. In this state, liquid medicine is discharged. Even if liquid medicine squirts in the process, the scattered liquid medicine is captured in the medication bottle 18. After dispensing, by pulling up the clamp member 48 upward, the intermediate portion is again curved, and in this state, the discharge port 40A is lifted upward. That is, the discharge port 40A is positioned at a height separated from the opening 18A by a predetermined distance. In this state, the medication bottle 18 can be moved in the horizontal direction. Note that the amount of liquid medicine dispensed can be detected based on the output signal of the weight sensor 20. The operation of the liquid medicine dispensing device 10 is controlled by the control unit 100. The control unit 100 inputs an output signal of the weight sensor 20 and outputs a signal to the actuator 50. Further, the control unit 100 outputs a drive signal to the pinch valve 42. Further, the output signal of the pressure sensor 38 is input to the control unit 100.

  FIG. 2 shows an enlarged view of the liquid medicine dispensing unit 28. As already described, the cap 32A is attached to the liquid medicine bottle 32, and the air tube 36 and the discharge tube 40 are provided so as to penetrate the cap 32A. The discharge tube 40 has a connection portion (upper end portion) 40B, an intermediate portion 40C, and a lower end portion 40D. The lower end of the lower end portion 40D, that is, the front end is the discharge port 40A. A pinch valve 42 is provided at the upper end portion 40B, and the channel can be opened and closed by the pinch valve 42.

  A clamp member 46 and a clamp member 48 are attached to the actuator 50. Between them is the intermediate portion 40C. The actuator 50 includes a slide mechanism 52, and the height of the clamp member 48 is varied by the slide mechanism 52. In FIG. 2, the clamp member 48 is positioned at the rising end, whereby the intermediate portion 40C is curved in the horizontal direction. The bending direction is preferably defined by some structure, but may be configured to bend in a free direction.

  The clamp members 46 and 48 securely hold the discharge tube 40 without crushing it. The clamp member 46 may be omitted. In that case, the pinch valve 42 exhibits the function of the clamp member 46. In the present embodiment, the pinch valve 42 is provided on the connection portion 40B, that is, the pinch valve 42 is fixedly disposed on the rotating plate, but the pinch valve 42 may be provided below the intermediate portion 40C. Is possible. In that case, the pinch valve 42 moves up and down together with the lower end portion 40D. According to such a configuration, when the intermediate portion 40C is deformed, it is possible to prevent dripping by the action of the pinch valve 42 even when the liquid is about to be pushed downward therefrom.

  In FIG. 2, 40 </ b> A indicates the discharge port at the rising end position, and 40 </ b> A ′ indicates the discharge port at the lower end. The rising end level is indicated by h1, and the falling end level is indicated by h3. There is an opening level h2 of the medication bottle 18 between them. That is, according to the present embodiment, it is possible to lower the height of the discharge port 40A downward by making the intermediate portion 40C straight, while the discharge port is deformed by bending the intermediate portion 40C. It is possible to raise the height of 40A upward. In the course of such movement, the discharge port 40 </ b> A moves inside and outside the opening of the medication bottle 18. Incidentally, for example, an optical sensor may be provided to monitor the height of the discharge port 40A. In that case, for example, when optical measurement is performed at two positions indicated by reference numerals 54 and 56 and a tube is observed at both positions, the discharge port 40A has entered the prescription bottle 18. When the discharge tube is not detected at both positions, it is possible to detect that the discharge port 40A is at the rising end.

  FIG. 3 shows a state where the discharge port 40 </ b> A is inserted into the medication bottle 18. The curved intermediate portion 40 </ b> C ′ becomes an intermediate portion 40 </ b> C having a straight shape as the clamp member 48 moves downward, and the discharge port 40 </ b> A is inserted into the medication bottle 18 accordingly. In such an exercise, it is not necessary to change the height of the liquid medicine bottle, and it is not necessary to change the height of the medication bottle 18. But you may add the mechanism which raises / lowers those bottles. For example, you may provide the mechanism which changes the height according to the kind of prescription bottle. In any case. It is possible to easily change the height of the discharge port by partially changing the shape of the discharge tube.

  FIG. 4 shows a horizontal cross section of the clamp member 48. Incidentally, another clamp member 46 has the same structure. In FIG. 4, the clamp member 48 includes horizontal bars 58 and 60, and the discharge tube 40 is sandwiched therebetween. Specifically, a sleeve 62 is provided outside the discharge tube 40, and the discharge tube 40 is sandwiched between the two bars 58 and 60 together with the sleeve 62. Pins 64 and 66 are provided across the two bars 58 and 60.

  FIG. 5 shows a vertical cross section of the clamp member 48. A sleeve 62 is provided outside the discharge tube 40, and the sleeve 62 includes an upper part 62A extending in the horizontal direction, a lower part 62B extending in the horizontal direction, and an intermediate part 62C therebetween. However, the structure of the clamp member is not limited to that shown in FIGS. 4 and 5, and other configurations may be used. In the present embodiment, since the clamp member 48 determines the direction of the discharge port, it is desirable to configure the clamp member 48 so that at least the central axis of the lower end portion is not shaken by the up-and-down movement. A pinch valve may be provided instead of the clamp member 48, and the function of the clamp member may be exhibited by the pinch valve.

  FIG. 6 shows an operation example of the liquid medicine dispensing device shown in FIG. In S10, the medication bottle is manually set on the holder. In S12, a prescription bottle is conveyed just under the liquid medicine bottle used as dispensing object by control by a control part. In S14, by lowering the lower clamp member, the nozzle, that is, the discharge port constituting the tip of the discharge tube is pulled downward. As a result, the discharge port is inserted into the opening of the medication bottle. In S16, the pinch valve is opened in the inserted state, and the liquid medicine is discharged. When the discharge of the predetermined amount of liquid medicine is completed based on the output signal of the weight sensor, the flow path is closed by the pinch valve. By raising the lower clamp member in S18, the intermediate portion is deformed, and at the same time, the discharge port is pulled up. In that state, the outlet is positioned above the opening level of the medication bottle. In S20, it is determined whether or not to dispense the next liquid medicine, and in the case of dispensing, each step after S12 described above is repeatedly executed. In S22, the prescription bottle is transported to a predetermined discharge port, and after the transport, the prescription bottle is manually pulled out from the holder.

  FIG. 7 shows another embodiment for raising and lowering the discharge port. The discharge tube 40 is held by two clamp members 46 and 48, and the clamp member 48 is a movable clamp member. When the clamp member 48 is pulled upward as indicated by reference numeral 48 ', the intermediate portion 40E swells evenly in the horizontal direction as indicated by reference numeral 40E', thereby deforming the intermediate portion 40E. That is, in the first embodiment, the intermediate portion is curved in a specific direction, but in the second embodiment shown in FIG. 7, the intermediate portion is deformed so as to swell in the horizontal direction. The section length in the direction has changed. According to the second embodiment shown in FIG. 7, since the internal volume in the intermediate portion 40E is also expanded, it is possible to obtain an action of sucking up the liquid medicine existing at the lower end portion. Thereby, dripping can be prevented effectively.

  FIG. 8 shows a third embodiment. (A) shows a state where the discharge port is pulled upward, and (B) shows a state where the discharge port is pulled downward. The discharge tube includes a fixed portion 68 and a movable portion 70. The fixed portion 68 is held by the first clamp member, and the movable portion 70 is held by the second clamp member. The movable part 70 can be moved up and down by moving the second clamp member up and down. A part of the movable part 70 is inserted into the fixed part 68, and the gap between the two is sealed by the seal member 72. Reference numeral 70A denotes an insertion portion. When the insertion amount shown in (A) is large and the insertion amount shown in (B) is small, the discharge port is pulled down as indicated by reference numeral 74. Even with such a double tube structure, the height of the discharge port can be varied, and even in that case, the height of the connecting portion can be maintained. Incidentally, in the configuration shown in FIG. 8, the movable portion 70 is inserted into the fixed portion 68, but the relationship between the two may be reversed.

  Another method can be cited as a method for changing the length of the middle portion in the vertical direction. For example, the section length may be changed using a bellows-like structure. In addition, a structure that can be expanded and contracted in the vertical direction may be provided in all or a part of the intermediate portion so that the section length can be changed. Although the liquid medicine dispensing device is configured in the above embodiment, it is of course possible to apply the above configuration to a general dispensing device. In the present embodiment, the discharge port is provided so as to face directly below, but the discharge port may be provided so as to face obliquely downward. It is also possible to employ a configuration that allows the head to swing freely.

  10 liquid medicine dispensing device, 18 medication bottle, 22 rotating unit, 26, 28, 30 liquid medicine dispensing unit, 40 discharge tube, 42 pinch valve, 44 discharge port level variable mechanism, 46, 48 clamp member.

Claims (8)

A first container holding mechanism for holding the first container;
A discharge tube having a connection portion connected to the first container, a lower end portion having a downward discharge port, and an intermediate portion between the connection portion and the lower end portion;
A second container holding mechanism for holding a second container for receiving the liquid discharged from the discharge port;
A height changing mechanism for changing the height of the lower end portion while maintaining the height of the connecting portion by changing the form of the intermediate portion;
A dispensing device comprising: The apparatus of claim 1.
The dispensing device is a device for dispensing liquid medicine as the liquid according to a prescription,
The first container is a liquid medicine container;
The second container is a medication container;
A dispensing device characterized by that. The apparatus according to claim 1 or 2,
The height changing mechanism inserts the discharge port into the opening of the second container before discharge, and lifts the discharge port out of the opening of the second container after discharge.
A dispensing device characterized by that. The device according to any one of claims 1 to 3,
The height changing mechanism is
A first clamp member for clamping the connecting portion;
A second clamp member for clamping the lower end portion;
An elevating mechanism that raises and lowers the second clamp member to change the form of the intermediate portion between the first clamp member and the second clamp member;
A dispensing device comprising: The apparatus of claim 4.
When the second clamp member is raised, the intermediate portion is shortened in the vertical direction,
The intermediate portion is elongated in the vertical direction in the lowered state of the second clamp member,
A dispensing device characterized by that. The apparatus of claim 5.
The intermediate portion is curved in the raised state of the second clamp member,
The intermediate portion is in a linear form in the lowered state of the second clamp member,
A dispensing device characterized by that. The apparatus of claim 5.
The intermediate portion is swollen in the raised state of the second clamp member,
The intermediate portion is in a linear form in the lowered state of the second clamp member,
A dispensing device characterized by that. The apparatus of claim 5.
The intermediate part has a fixed part and a movable part,
Of the fixed part and the movable part, one part is partially inserted into the other part,
The insertion amount becomes large in the raised state of the second clamp member,
The insertion amount becomes small in the lowered state of the second clamp member,
A dispensing device characterized by that.

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