EP2190745A1 - Appareil de conditionnement pour la manutention de pilules et procédé associé - Google Patents

Appareil de conditionnement pour la manutention de pilules et procédé associé

Info

Publication number
EP2190745A1
EP2190745A1 EP08797462A EP08797462A EP2190745A1 EP 2190745 A1 EP2190745 A1 EP 2190745A1 EP 08797462 A EP08797462 A EP 08797462A EP 08797462 A EP08797462 A EP 08797462A EP 2190745 A1 EP2190745 A1 EP 2190745A1
Authority
EP
European Patent Office
Prior art keywords
pill
pills
rotary slat
angular position
rotary
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Withdrawn
Application number
EP08797462A
Other languages
German (de)
English (en)
Inventor
John T. Aylward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aylward Enterprises LLC
Original Assignee
Aylward Enterprises LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aylward Enterprises LLC filed Critical Aylward Enterprises LLC
Publication of EP2190745A1 publication Critical patent/EP2190745A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
    • B65B5/10—Filling containers or receptacles progressively or in stages by introducing successive articles, or layers of articles
    • B65B5/101—Filling containers or receptacles progressively or in stages by introducing successive articles, or layers of articles by gravity
    • B65B5/103—Filling containers or receptacles progressively or in stages by introducing successive articles, or layers of articles by gravity for packaging pills or tablets
    • 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
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/16—Methods of, or means for, filling the material into the containers or receptacles by pneumatic means, e.g. by suction
    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/30—Arranging and feeding articles in groups
    • B65B35/46—Arranging and feeding articles in groups by rotary conveyors
    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/30—Arranging and feeding articles in groups
    • B65B35/48—Arranging and feeding articles in groups by pneumatic conveyors
    • 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
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/10—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders
    • B65B1/14—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders of centrifugal type

Definitions

  • Embodiments of the present invention relate to packaging machines and, more particularly, to an automated packaging machine for filling containers with pills, and associated method.
  • pill filling machines have been proposed that provide automated bottle counts by filling a hopper with pills and causing a plurality of the pills to be caught by a pill capturing device, such as an array of rotary slats.
  • the rotary slats drop the captured pills into a plurality of bottles disposed in alignment with the dropping pills.
  • the bottles are distributed along an endless conveyor belt that is timed to advance and stop the bottles according to the filling operation.
  • Some conventional pill capturing devices more particularly include a series of rotary slats each configured to receive, hold, and move a plurality of capsules or pills along a closed path.
  • the rotary slats are typically discs fixed on a rotatable shaft and have a plurality of openings in the outer peripheral edge portion thereof for capturing individual pills.
  • the closed path is arcuate and generally disposed between a pill hopper and discharge area above a conveyor belt.
  • the pill capturing device then generally discharges the pills by rotating the slats, which move in correspondence with the closed path, such that the pills fall out of the respective openings at the filling station.
  • the pills are often funneled through a chute that empties into a corresponding bottle.
  • the "count,” or number of pills in the bottle is typically determined by positioning the bottles in the pill dropping zone for a predetermined time.
  • the duration of the filling operation for each bottle corresponds to the number of openings in each slat that the machine is capable of delivering to the bottles per unit of time.
  • the duration of the filling operation, speed of the rotary slats, and configuration of the pill capturing device are thus used to calculate the count.
  • the pill capturing device fails to capture a pill in each and every cavity or receptacle of the slats, or if a pill should mistakenly be diverted away from a path toward the bottles, at least one of the bottles can be improperly filled.
  • a conventional solution to this problem is to situate an operator adjacent to the slats to ensure that each receptacle is filled with a pill. If a pill is missing, the operator manually places a pill in the receptacle.
  • such an approach involves additional labor costs and can be unsatisfactory for sterility purposes.
  • the accuracy of the count of each bottle is largely determined by the operator and, as such, a fully and consistently-accurate counts cannot be guaranteed.
  • U.S. Pat. No. 6,185,901 to Aylward which is incorporated herein by reference, provides an exemplary solution to this problem by way of a machine with a plurality of independently-driven rotary slats.
  • the pills are allowed to fall into an exterior receptacle of each rotary slat and, in one embodiment, passed under a rotary brush, in an attempt to prevent two pills from being disposed in the same receptacle.
  • a separate counting device is associated with each rotary slat for counting each pill as it falls from the slat into the container. A positive count is provided for each container and improperly-filled slats will not affect the total count for that container.
  • a particular container has a low count
  • the respective slat can be further rotated to fill the container. Because the slats are independently driven, the other slats can remain stationary to prevent overfilling.
  • Such a machine is capable of accomplishing an accurate filling of each bottle, but consistent filling of the exterior receptacles of each rotary slat may be difficult and may require additional provisions for assuring continuous filling of the receptacles in a reliable manner.
  • One alternative apparatus is a rotatable drum, as provided in U.S. Pat. No. 4,094,439 to List.
  • the rotatable drum includes a plurality of parallel rows of throughgoing holes that constitute receptacles for dragees.
  • the dragees enter the receptacles in the drum from the interior of the drum at an inner input location, exit to the exterior of the drum at an outer retrieval location, and are filled into bottles.
  • An ordering device facilitates the entry of the dragees into the receptacles, and feeler blades engage the receptacles. If any of the receptacles in an axially extending row do not contain a dragee, one of the feeler blades actuates a bolt pusher, which prevents any of the dragees in the row from being deposited into the bottles. Instead, a solenoid and knockout bar empty the receptacles of the row.
  • the apparatus prevents the different bottles from being filled at different rates.
  • the additional mechanical components required for emptying the partially filled rows of apertures undesirably increase the complexity, cost, and likelihood of failure or inaccurate count of the apparatus.
  • emptying the partially filled rows slows the process of filling the bottles, since no pills are dispensed from those rows.
  • a packaging apparatus which provides an accurate count for each container and operates at a high speed.
  • the apparatus should require a minimum of operator intervention. Additionally, the apparatus should be cost effective, both in initial cost and maintenance costs.
  • an automated packaging apparatus for depositing pills into a container.
  • Such an apparatus comprises a rotary slat configured as a cylinder rotatable in a rotational direction about an axis extending longitudinally therethrough, wherein the cylinder comprises a radially outward portion and an opposing radially inward portion, and defines a plurality of pill apertures therein.
  • Each pill aperture is adapted to receive a pill from a plurality of pills deposited into an interior space defined by the cylinder.
  • the pills are received by the pill apertures, from the interior space, at a first angular position of the rotary slat.
  • a negative pressure system is in fluid communication with the pill apertures of the rotary slat, wherein the negative pressure system is configured to apply a negative pressure to the pill apertures, so as to retain the pills therein, as the rotary slat rotates about the axis from the first angular position to a second angular position.
  • a removal system is configured to interact with each of the pill apertures of the rotary slat, as the respective pill aperture is disposed at the second angular position, so as to remove the respective pill therefrom through the radially outward portion of the rotary slat.
  • a collection system is disposed adjacent to the radially outward portion of the rotary slat, about the second angular position, and is configured to direct each pill removed from each respective pill aperture toward a container for deposition therein.
  • Another aspect of the present invention comprises a method of automatically depositing pills into a container.
  • Such a method includes receiving a pill in each of a plurality of pill apertures defined by a rotary slat, wherein the rotary slat is configured as a cylinder rotatable about an axis extending longitudinally therethrough and comprises a radially outward portion and an opposing radially inward portion.
  • the pills are provided from a plurality of pills deposited into an interior space of the cylinder, and are received by the pill apertures at a first angular position of the rotary slat.
  • the rotary slat is rotated in a rotational direction about the axis, from a first angular position to a second angular position, while a negative pressure is applied to the pill apertures, so as to retain the pills within the pill apertures, as the rotary slat rotates in the rotational direction from the first angular position to the second angular position.
  • the pills are removed from the pill apertures, at the second angular position of the rotary slat, through the radially outward portion of the rotary slat. Each pill removed from each respective pill aperture is then directed toward a container for deposition therein.
  • embodiments of the present invention include an automated packaging apparatus and associated method providing an accurate count of pills dispensed to each container.
  • Such an apparatus requires a minimum of operator intervention, and can operate at a high speed. Additionally, such an apparatus is cost effective, both in initial cost and maintenance cost.
  • FIGS. IA and IB are perspective views of a pill packaging apparatus according to one embodiment of the present invention.
  • FIGS. 2A-2C are cross-sectional views of a pill packaging apparatus according to one embodiment of the present invention.
  • FIGS. 3 A and 3B are perspective views of a complete pill packaging apparatus and an exploded pill packaging apparatus, respectively, according to one embodiment of the present invention
  • FIGS. 4A and 4B are perspective views of a rotary slat configured to receive pills and a rotary slat configured to receive capsules, respectively, according to various embodiments of the present invention
  • FIG. 5 is a magnified cross-sectional view of a pill packaging apparatus according to one embodiment of the present invention.
  • Embodiments of the present invention are generally directed to a pill handling apparatus 10, such as an automated packaging machine.
  • a pill handling apparatus can be used for dispensing pills into containers, as discussed, for example, in U.S. Patent No. 6,185,901 to Aylward, and in U.S. Patent No. 6,401,429 to Aylward, the contents of which are incorporated herein by reference.
  • such a pill handling apparatus can be used for other handling operations, besides pill packaging, such as transporting pills during manufacture, inspection, or the like.
  • the pill handling apparatus 10 is adapted to deliver pills 12 into a series of containers 16.
  • the term "pill” is not intended to be limiting and includes any discrete articles of the type used in the pharmaceutical industry or otherwise, including, but not limited to, capsules, caplets, gelcaps, dragees, and tablets.
  • the receiving containers 16, although illustrated as blister packages throughout, are not limited thereto and can be any of various configurations which provide an opening for receiving discrete articles therein, such as bottles, pouches, boxes, or any other suitable containers.
  • the pill handling apparatus 10 includes a rotary slat 18 for receiving pills 12 and transporting the pills 12 to the receiving containers 16.
  • the rotary slat 18 is generally configured as a cylinder defining a longitudinal axis therethrough, wherein the plurality of pills 12 is received within an interior space 20 defined by a radially inward portion 21 A (i.e., an inner surface) of the cylinder.
  • the radially inward portion 2 IA further defines receptacles or pill apertures 22 (wherein the terms "receptacle” and “aperture” are used interchangeably herein with respect to element 22) along one or more paths about the rotary slat 18.
  • the slat 18 is illustrated as having parallel paths of receptacles 22, with each path extending about the inner surface 21 A perpendicularly to the longitudinal axis (i.e., about the inner circumference thereof).
  • the radially inward portion 21 A of the rotary slat 18 can define adjacent continuous grooves or slots (see, e.g., FIG. 4A illustrating a rotary slat configured to receive pills and FIG.
  • FIG. 4B illustrating a rotary slat configured to receive capsules) that extends about the inner circumference of the cylinder around the slat 18, with the receptacles 22 being defined in the grooves so that the pills 12 are received by each groove and guided thereby into the receptacles 22.
  • the receptacles 22 are illustrated to be pocket-like apertures that extend radially outward from the radially inward portion 21A of the slat 18, the apertures can have other configurations.
  • the apertures can be holes, grooves, flat portions on the radially inward portion 2 IA of the slat 18, or the like.
  • the receptacles 22 can define positions on the radially inward portion of the slat 18 where the pills 12 are received, i.e., positioned, and held during transport of the pills 12 to the containers 16.
  • the receptacles 22 need not define a contour that corresponds to the shape of the pills 12, and the receptacles 22 can be provided with or without the groove(s). That is, the receptacles 22 can be defined on or by the radially inward portion 2 IA of the slat 18, or on or by the surface of an outwardly-extending groove, as shown in FIGS. 4A and 4B.
  • the pills 12 are fed into the interior space 20 of the cylindrical rotary slat 18 from a reservoir 14, by way of a chute 14A extending therebetween.
  • the opposed lateral sides of the rotary slat 18 may have retaining plates 2OA operably engaged therewith for retaining the pills 12 within the interior space 20 of the cylindrical rotary slat(s) 18.
  • a controller or controller device 46 may also be in communication with a level sensor (not shown) within the common interior portion, and a reservoir gate switch (not shown) controlling a reservoir gate (not shown) disposed between the reservoir 14 and the interior space 20 of the rotary slats 18 (i.e., along the chute 14A).
  • the level sensor may be configured to detect the quantity of pills 12 in the interior space 20 and to communicate a corresponding value or signal to the controller 46 so as to appropriately control the feed of the pills 12 from the reservoir 14 via the reservoir gate / reservoir gate switch.
  • the level sensor can detect the level of pills 12 in the interior space 20 of the rotary slat 18 and, when the controller 46 detects that the level of pills 12 is below the desired level, the controller 46 signals the reservoir gate switch to open the reservoir gate to release more pills 12 from the reservoir 14 into the interior space 20. By opening and closing the reservoir gate, the controller 46 maintains a desired number of pills 12 within the cylinder defined by the rotary slat 18.
  • the desired level of pills 12 may thus be adjusted, for example, to optimize the seating of pills 12 in the pill apertures 22 and/or to prevent wear or breaking of the pills 12 caused by overfilling of the interior space 20.
  • the rotary slat 18 may be engaged with and rotated by a drive arrangement or mechanism 120 to transport the pills 12 from the interior space 20 to the containers 16.
  • the rotary slat 18 rotates in a first direction 19 defining an arcuate delivery path from a pill capture or first angular position 23A to a release or second angular position 23B, where the pills 12 are released.
  • the release position 23B is generally more than about 180 degrees away from the pill capture position 23 A, but nonetheless above a horizontal plane extending through the longitudinal axis (whereas the pill capture position 23A is below the horizontal plane).
  • the first angular position 23A may be, for instance, about the "six o'clock" position (i.e., between about "four o'clock” and about “eight o'clock"), while the second angular position 23B may be, for instance, about the "two o'clock” position.
  • the drive arrangement may be configured, for example, to engage an outer surface or an end surface of the rotary slat 18 by friction or geared engagement to turn the rotary slat 18 in the first direction 19.
  • the rotary slat 18 is configured such that each pill aperture 22 extends from the radially inner portion 2 IA (i.e., inner surface) to the outer radial portion 2 IB (i.e., outer surface) of the cylinder. Each pill aperture 22 is thus configured such that the pills 12 can pass therethrough.
  • the pill apertures 22 therefore include several aspects for retaining the pills 12 therein, as the pills 12 are transported from the first angular position 23A to the second angular position 23B with respect to the rotary slat 18 rotating in the rotational direction 19 (i.e., clockwise) about the longitudinal axis thereof.
  • each pill aperture 22 may include a retaining flange or lip 100 about the radially inward portion 2 IA of the rotary slat 18, and about the leading edge of the pill aperture 22 with respect to the rotational direction 19.
  • the retaining flange 100 at least partially facilitates retention of the pill 12 within the respective pill aperture 22, as the pill 12 is deposited therein from the interior space 20.
  • the rotary slat 18 may be formed as an integral, single-piece component.
  • a suitable forming device such as, for example, a laser sintering device may be implemented to form the rotary slat 18.
  • the rotary slat 18 may be cast, machined, molded, or otherwise formed.
  • a variety of materials can be used for the construction of the rotary slat 18 including, but not limited to, metals, metal alloys, and polymers.
  • the rotary slat 18 is formed of a durable, low friction material that is cost effective for manufacture, such as a compound comprising acrylonitrile-butadiene-sytrene and polytetrafluoroethylene.
  • a durable, low friction material that is cost effective for manufacture, such as a compound comprising acrylonitrile-butadiene-sytrene and polytetrafluoroethylene.
  • the radially outward portion 2 IB of the rotary slat 18 may be at least partially covered by a shroud member 30 disposed adjacent thereto.
  • the shroud member 30 is disposed adjacent to the rotary slat 18, at least between about the first angular position 23 A and about the second angular position 23 B, so as to cover the pill apertures 22 from the radially outward portion 2 IB of the rotary slat 18, while allowing the rotary slat 18 to rotate with respect thereto in the rotational direction 19.
  • a controller 46 may be configured to control the operation of the drive arrangement such that the rotary slat 18 can be rotated at various speeds, if desired or appropriate.
  • the rotary slat 18 can be rotated at a fast speed during the initial portion of the pill filling operation, until a predetermined number of the pills 12 is delivered to the respective container 16, and subsequently rotated at a slower speed to finish the filling operation and to prevent under- filling or over- filling of the container 16.
  • the controller 46 can alternately accelerate and decelerate the rotary slat 18 to cause a jerking or vibratory motion for agitating the pills 12. Such agitation of the pills 12 can be useful in encouraging the pills 12 to become seated in the pill receptacles 22.
  • a negative pressure system or vacuum assembly 90 may be disposed in fluid communication with the rotary slat 18 to apply suction, or draw air into, the receptacles 22 of the rotary slat 18 through, for example, appropriate holes defined by the shroud member 30 so as to act upon pills 12 to be received from the interior space 20 or retained within the receptacles 22.
  • the vacuum assembly 90 may include the shroud member 30 disposed adjacent to the rotary slat 18 so as to extend at least partially about the radially outward portion 2 IB thereof.
  • Air may be drawn from the pill apertures 22 and through the shroud member 30 by a fan, pump, or other appropriate low pressure source through a vacuum chamber 32 associated with the shroud member 30, whereby the receptacles 22 can be affected by suction applied via the shroud member 30.
  • the receptacles 22 temporarily disposed between the first angular position 23A and the second angular position 23B are temporarily disposed in fluid communication with the suction applied via the shroud member 30 such that, as air is drawn from the vacuum chamber 32, suction is created in the receptacles 22.
  • the disposition of the receptacles 22, in this regard, is referred to herein as "temporary" because the rotary slat 18 is generally being rotated when the pill handling apparatus 10 is used.
  • the vacuum assembly 90 can selectively draw air into or apply suction to the receptacles 22 according to the rotational position of the rotary slat 18 so that the pills 12 are urged into the receptacles 22 at the first angular position (e.g., the "capture" position 23A of the rotary slat 18) and released from the receptacles 22 at the second angular position (e.g., the release position 23B for dispensing the pills 12 into the containers 16).
  • pills 12 deposited into the interior space 20 of the cylindrical rotary slat 18 are urged toward receipt and capture by the receptacles 22 because of the air currents and pressure differentials present at the receptacles 22 due to the suction imparted by the vacuum assembly 90 via the shroud member 30.
  • the pills 12, once seated in the receptacles 22, may at least temporarily partially or entirely block the holes defined by the shroud member 30.
  • the vacuum assembly 90 may also serve to clean the pills 12, but may also allow pill fragments or other particles to fall from the receptacles 22 and back into the interior space 20 of the rotary slat 18.
  • Such a fragment/particle removal process is further facilitated by the respective dispositions of the first and second angular positions 23A, 23B (i.e., transporting the pills through the "12 o'clock" position allows the fragments/particles the opportunity to fall from the receptacles 22).
  • the vacuum chamber 32 ends and the receptacles 22 associated therewith lose fluid communication with the shroud member 30.
  • the retaining flange 100 prevents the pill 12 from exiting the rotary slat 18 through the radially inward portion 21 A thereof.
  • each receptacle 22 reaches the release or second angular position 23B, the receptacle 22 is rotated beyond the shroud member 30 so that the pill 12 is no longer held in the receptacle 22 by suction, but rather by the retaining flange 100.
  • vacuum assemblies 90 can be used to provide the desired suction for controlling the seating of the pills 12 in the rotary slat 18.
  • a shroud or cover can be additionally or alternatively be provided about the radially inward portion 2 IA of the cylindrical rotary slat 18 for preventing the release of the pills 12 from the receptacles 22 through either the radially inward portion 21 A or the radially outward portion 2 IB.
  • a removal system 95 such as a positive pressure or blower assembly, or other suitable ejection mechanism, can be disposed in fluid communication with each receptacle or pill aperture 22 for removing the respective pills 12 therefrom through the radially outward portion 2 IB of the rotary slat 18.
  • the shroud member 30 is configured to define a dispensing aperture 160 about the second angular position 23B (with the dispensing aperture 160 being configured to allow the pill 12 to pass therethrough).
  • the shroud member 30 may be configured to define a first capillary 150A extending therethrough about the second angular position 23B toward the radially outward portion 2 IB of the rotary slat 18.
  • the rotary slat 18 may further define a complementary second capillary 150B configured to be, at least temporarily, in communication with the first capillary 150A as a corresponding pill aperture 22 is aligned with the dispensing aperture 160.
  • the second capillary 150B may, in one instance, be configured to extend from the radially outward portion 2 IB toward the radially inward portion 2 IA (but without extending through the radially inward portion 21A), and then back toward the radially outward portion 2 IB.
  • the second capillary 150B extends radially outward through the trailing edge (with respect to the rotational direction 19) of the pill aperture 22 or through the radially outward portion 2 IB about the trailing edge of the pill aperture 22.
  • air blown into the first capillary 150A by the removal system 95 i.e., by an air blower
  • the blown air exits the second capillary 150B about the trailing edge of the pill aperture 22 when the pill aperture 22 is aligned with the dispensing aperture 160 about the second angular position 23B.
  • the air exiting the second capillary 150B thus forms a low pressure area (i.e., suction) externally to the pill aperture 22 at the radially outward portion 2 IB of the rotary slat 18.
  • the low pressure area thus causes the pill 12 to be removed from the pill aperture 22 through the radially outward portion 2 IB of the rotary slat 18 and through the dispensing aperture 160 defined by the shroud member 30.
  • the removal system 95 may, in some instances, be configured to address individual rows of apertures within the rotary slat 18.
  • the removal system 95 may be selectively operated such that the apparatus 10 can be used, for example, to fill different sizes of containers 16 or to provide a "fine fill” function whereby the apparatus 10 completes a pill count for a particular container 16.
  • the removal system 95 may be configured to at least partially determine the filling of the containers 16. That is, the pills 12 will be extracted or removed from the pill apertures 22 as long as the removal system 95 is "on” (i.e., as long as air is being blown into the first and second capillaries 150A, 150B.
  • each rotary slat 18 includes an appropriately configured second capillary 150B for cooperating with the first capillary 150A).
  • servicing and maintenance of the apparatus 10 may also be facilitated by such a configuration of the removal system 95.
  • the removal system 95 may be configured in different manners.
  • the removal system 95 may, in some instances, be disposed within the interior space 20 of the rotary slat 18 and configured to blow air outwardly through the second capillary 150B (the first capillary 150A would not be necessary) to accomplish a similar effect.
  • the pills 12 are collected by a collection system 60 and directed toward the container(s) 16 for deposition therein.
  • the collection system 60 may comprise one or more chutes 62 disposed adjacent to the release or second angular position 23B of the rotary slat 18 (and adjacent to the dispensing aperture 160) for receiving the pills 12 and guiding the pills 12 from the rotary slat 18 to a container 16.
  • a receptacle 22 having a pill 12 therein arrives at the release position 23B, the pill 12 is removed from the receptacle 22 and is collected by a chute 62 through the dispensing aperture 160.
  • the chutes 62 may be comprised of, for example, an acetal or DelrinTM polymer, available from DuPont.
  • the number of pills 12 delivered to each container 16 must also be determined.
  • a counting device or counter device 200 can be associated with the rotary slat 18 or the chute(s) 62 of the collection system 60 prior to the pills 12 being deposited into the container 16.
  • one or more counting devices 200 can be positioned adjacent, above, below, or within a chute 62 so that any pill 12 which travels through the chute 62 will be detected by the counting device 200.
  • One exemplary counting device 200 includes an infrared light source and a light receiver positioned substantially opposite the light source across a central passage (i.e., the chute 62). The light source generates a light beam that is detected by the opposing light receiver. When the light beam is interrupted by a falling pill 12, the light receiver transmits a signal which increases the count in the controller 46. Thus, the number of interruptions corresponds to the number of pills 12 delivered into a particular container 16.
  • the controller 46 may also be configured to control the quantity of pills 12 provided in the reservoir 14.
  • a level sensor can detect the quantity of pills 12 in the reservoir 14. The quantity may be determined optically, by weight, or otherwise.
  • the level sensor communicates a corresponding value or signal to the controller 46.
  • the controller 46 detects that the level of pills 12 in the reservoir 14 is below the desired level, the controller 46 can open a reservoir gate that controls the passage of pills 12 from a bulk bin to the reservoir 14, thereby maintaining a desired number of pills 12 in the reservoir 14.
  • the desired level of pills 12 in the reservoir 14 can be adjusted to optimize the seating of pills 12 in the receptacles 22 of the rotary slat 18 and to prevent wearing or breaking of the pills 12 caused by overfilling of the reservoir 14.
  • a pill inspection device may also be implemented, wherein the counting device 200 may be a separate and different component, or may be incorporated with the pill inspection device.
  • the counting device(s) and/or inspection device(s) can be configured to detect the pills by counting and/or inspecting the pills.
  • the inspection device may be, for example, an optical imaging device, such as a camera, configured to monitor the chute(s) 62 for pills 12 passing therethrough by detecting an image of each pill to determine the size, shape, and/or other characteristics of the pill.
  • the inspection device can be configured to determine the presence of the pills 12 in the chute(s) 62 (i.e., as a counting device) and/or determine a characteristic of the pills 12, such as whether the pills are broken or otherwise defective. If provided, the inspection device is disposed in communication with the controller 46, e.g., so that the controller can use the inspection device to determine, for example, if a chute 62 is blocked.
  • the container 16 may be brought into position under the chute(s) 62 by a conveyor device 70 or other suitable container-movement system, as will be appreciated by one skilled in the art, wherein the container 16 may be appropriately placed, for example, by mechanical stops or any number of placement arrangements. Since the pills 12 are dispensed from the rotary slat 18 in parallel to the longitudinal axis thereof, the conveyor device 70 may be configured to move the container 16 into coincidence with the collection system 60 (i.e., presuming that the collection system 60 directs the pills 12 directly downward from the respective apertures 22) along a horizontal path substantially perpendicular to the axis.
  • a plurality of pill packaging apparatuses 10 represented by a corresponding plurality of rotary slats 18 (i.e., as shown in FIGS. IA and IB), each with their own removal system 95, may be implemented to fill the containers 16 in a serpentine-like manner. After the container 16 has been filled, the container 16 is transported away for further processing or packaging and a different, unfilled container 16 is transported into coincidence with the collection system 60.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

L'invention porte sur un appareil de conditionnement automatisé (10) et sur le procédé associé à celui-ci, permettant de déposer des pilules dans un récipient (16). Une lamelle cylindrique et rotative (18) pivote autour d'un axe longitudinal, définissant ainsi une pluralité d'ouvertures (22) servant à accueillir les pilules préalablement déposées dans un espace intérieur du cylindre, la lamelle rotative se trouvant dans une première position angulaire. Un système de pression négative (90) exerce une pression négative sur les ouvertures afin d'y retenir les pilules tandis que la lamelle rotative pivote de la première (23A) position angulaire vers une seconde position angulaire (23B). Un système de retrait (95) interagit avec les ouvertures au fur à mesure que chaque ouverture se trouve dans la seconde position angulaire afin de retirer chaque pilule par l'intermédiaire d'une partie formée radialement vers l'extérieur (21B) de la lamelle rotative. Un système de collecte (60), adjacent à la partie formée radialement vers l'extérieur de la lamelle rotative dans la seconde position angulaire, permet de diriger chaque pilule retirée de son ouverture vers un récipient, aux fins de dépôt dans ce dernier.
EP08797462A 2007-08-09 2008-08-08 Appareil de conditionnement pour la manutention de pilules et procédé associé Withdrawn EP2190745A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95496907P 2007-08-09 2007-08-09
PCT/US2008/072595 WO2009021171A1 (fr) 2007-08-09 2008-08-08 Appareil de conditionnement pour la manutention de pilules et procédé associé

Publications (1)

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EP2190745A1 true EP2190745A1 (fr) 2010-06-02

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EP08797462A Withdrawn EP2190745A1 (fr) 2007-08-09 2008-08-08 Appareil de conditionnement pour la manutention de pilules et procédé associé

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US (1) US20090044495A1 (fr)
EP (1) EP2190745A1 (fr)
WO (1) WO2009021171A1 (fr)

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