AUTOMATIC STORAGE AND DISTRIBUTION SYSTEM, AND HOUSING UNIT AND PICKING UNIT FOR PRODUCTS PACKAGED IN UNIT DOSES

Abstract

Storage and distribution system for products in unit doses, including a plurality of housing units, each including a plurality of locations for products in unit doses. The housing units are organised on a vertical plane to produce at least one portion of a picking wall, in which the locations for products in unit doses face selective picking members. A picking unit includes picking members oriented on the picking wall for picking products packaged in unit doses. A collecting unit, arranged on a second side of the picking unit, includes a rack having a plurality of pegs facing towards the first side of the picking unit. The pegs are reached by the picking members so as to pick therefrom or deposit thereon products packaged in unit doses. The plurality of pegs as a whole can collect a smaller number of unit dose products than those that can be stored in the automatic store.

Claims

1. Storage and distribution system for products in unit doses, comprising a plurality of housing units, each comprising a plurality of locations for products in unit doses, it being possible to organise the housing units on a substantially vertical plane so as to produce at least one portion of a picking wall, in which the locations for products in unit doses face selective picking means.

2. Storage and distribution system according to claim 1, wherein each housing unit comprises a box-shaped body having at least one front opening from which unit dose products can be picked, it being possible to house the box-shaped bodies in at least one shelf so as to produce said at least one portion of picking wall.

3. Storage and distribution system according to claim 2, wherein the at least one shelf is open on two sides, one facing the selective picking means, the other communicating with a storage zone for the housing units.

4. Storage and distribution system according to claim 2, wherein the at least one shelf comprises a plurality of bearing planes on which the housing units are selectively placed so that the box-shaped bodies have their front opening facing the selective picking means placed in a picking zone.

5. Storage and distribution system according to claim 4, wherein the distance between bearing planes substantially corresponds to the height of the box-shaped bodies of the housing units.

6. Storage and distribution system according to claim 4, wherein, on each bearing plane, stop means are produced for locking the box-shaped bodies of the housing units in the picking position facing the selective picking means.

7. Housing unit for use in a storage and distribution system according to claim 1, comprising a box-shaped body having a front opening, support elements for a plurality of supports for unit dose products being provided in the box-shaped body.

8. Housing unit according to claim 7, wherein the support elements are pegs that project from a rear wall and face the front opening of the box-shaped body.

9. Housing unit according to claim 8, wherein there is more than one peg for each housing unit, which pegs are tilted upwards, are aligned relative to each other and are arranged close to an upper wall of the box-shaped body.

10. Housing unit according to claim 7, comprising a selectively removable cover for closing the front opening of the box-shaped body.

11. Unit for picking products packaged in unit doses, comprising picking means that can be oriented towards a first side of the picking unit where they prove suitable, in use, for picking products packaged in unit doses from one face of an automatic store, a collecting unit being arranged on a second side, opposite the first side relative to the picking means, of the picking unit, the collecting unit comprising a rack comprising a plurality of pegs facing towards the first side and reachable by the picking means for picking products packaged in unit doses from the pegs or depositing them thereon, the plurality of pegs as a whole being capable of collecting a smaller number of unit dose products than those that can be stored in the automatic store.

12. Picking unit according to claim 11, it being possible to orient the picking means towards the first side of the picking unit where they prove suitable, in use, for picking products packaged in unit doses from at least one portion of a picking wall.

13. Picking unit according to claim 11, wherein the rack comprises at least two distinct rack zones, in which the spacing between the various pegs is correspondingly different, so as to house at least two corresponding pack sizes for unit dose products.

14. Picking unit according to claim 11, wherein each peg is placed beside alignment and separation means for aligning the packs of unit dose products hanging from each peg and separating them from the packs of unit dose products hanging from an adjacent peg.

15. Picking unit according to claim 11, wherein the collecting unit comprises a frame for supporting substantially vertical panels defining a base of the rack.

16. Picking unit according to claim 11, wherein the collecting unit comprises supports for members for grouping together the products packaged in unit doses.

17. Picking unit according to claim 11, wherein the collecting unit comprises means for selective coupling to a structure for supporting and handling the picking means.

18. Method for distributing unit dose products housed in a housing unit according to claim 7, comprising the steps of transporting one or more housing units and organising them on a substantially vertical plane so as to produce at least one portion of a picking wall, in which the locations for products in unit doses face selective picking means, and asynchronously activating the selective picking means for picking desired unit dose products from the housing units.

19. Method for picking and distributing products packaged in unit doses, using a picking unit according to claim 11, wherein the picking means are controlled when selectively picking: a) from the first side to the second side, in order to collect at least one product packaged in a unit dose from an automatic store and to transfer it either to a predetermined peg of the rack or to a loading zone of a grouping member, or b) from a given position on the rack on the second side to another given position on the rack on the second side, in order to transfer a product packaged in a unit dose from one position to the other on the rack of the collecting unit, or c) from a given position on the rack on the second side to a predetermined zone on the second side corresponding to a loading zone of a grouping member.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0022] Further features and advantages will become apparent from the following detailed description of some preferred embodiments of the technology, given purely by way of non-restrictive example, with reference to the attached drawings, in which:

[0023] FIG. 1 is a diagrammatic elevation view of an automatic store according to the present technology;

[0024] FIG. 2 is a diagrammatic plan view of the automatic store in FIG. 1;

[0025] FIG. 3 is an enlarged view of the device for picking products from the automatic store in FIG. 1;

[0026] FIG. 4 is a perspective view of a storage unit according to the present technology, provided with an optional cover;

[0027] FIG. 5 is a diagrammatic perspective view of an example of a picking unit provided with a collecting unit according to the present technology, and not provided with the outer covering for clarity of illustration and shown from the side that, during use, faces towards the store of products packaged in unit doses as shown in FIG. 1;

[0028] FIG. 6 is an elevation view in the direction of the arrow VI in FIG. 5;

[0029] FIG. 7 is a perspective enlarged view of a detail of the collecting unit of FIGS. 5 and 6; and

[0030] FIG. 8 is a diagrammatic perspective view of the collecting unit of FIG. 5 to 7, shown from the side opposite that in FIG. 5, which, during use, faces towards the unloading of the groups of products packaged in unit doses.

DETAILED DESCRIPTION

[0031] With reference now to FIGS. 1 to 4, an automatic store 10 is intended for the storage of unit dose products. The unit dose products are preferably drugs or other related, medically prescribed products such as syringes, ampoules or bottles of normal saline, gauze, dressings, sterile compresses, and so on. The automatic store 10 is provided mainly, although not exclusively, for use with unit dose products supported by appropriate supports that can be hung from a peg.

[0032] The automatic store 10 is suitable for storing a plurality of housing units 20 that are more clearly visible in FIG. 4. Each housing unit 20 comprises a box-shaped body 21. The box-shaped body 21 is defined by an upper wall 22, a lower wall 23, two sides 24 and a rear wall 25, which overall define a front opening 19 in the box-shaped body 21. Inside the box-shaped body 21, some pegs 26 are provided, projecting out from the rear wall 25. From each peg 26, one or more supports S for unit dose products can be hung. Preferably, there is more than one peg for each housing unit 20, and even more preferably, there are three or four, as illustrated in FIG. 4. The pegs 26 are tilted upwards from the rear wall 25. The ends of the pegs 26 are aligned horizontally relative to each other. Fundamentally, the pegs 26 are parallel to each other and lie on the same plane, slightly tilted relative to the horizontal. The pegs 26 are arranged close to the upper wall 22 of the box-shaped body 21. The pegs 26 are tilted upwards so that the supports S for the unit dose products hanging therefrom rest on each other and against the rear wall 25. The housing unit 20 can thus be transported without any risk of the products housed therein falling. Preferably, inside the box-shaped body 21 of the housing unit 20, separating partitions 27 are produced, keeping the supports S for the unit dose products aligned and preventing or reducing their oscillation during transport. The pegs 26 are the preferred support elements for the supports S of unit doses, but naturally supports having a different shape can be provided, such as rods, guide bars, combs, slots and the like, also depending on the shape of the supports S.

[0033] The size of the housing unit 20 is preferably standardised so that it can be managed interchangeably within the automatic store 10, as will be explained more clearly below. In particular cases, two or more types of housing unit 20 can be provided, for example a first type of housing unit 20 for unit dose drugs, and a second type of housing unit 20 for more bulky products, for example syringes, dressings, gauze, bottles and the like.

[0034] Preferably, each housing unit 20 is identified by means of a barcode 28 and/or an RFID tag 29 placed on the box-shaped body 21. On the sides 24, gripping notches 30 are provided, in which the members for handling the box-shaped bodies 21 within the store 21 engage, for example the jaws of a handling robot or a stacker crane of a generally known type. In an area at the front of the box-shaped body 21, preferably on the lower wall 23, there is a coupling or locking system, for example a slot 33 or other element for removably securing the box-shaped body 21 on a shelf, for storage or picking purposes, as described more clearly below.

[0035] The unit dose products are preferably transported in groups of products contained in the housing unit 20. Preferably but not restrictively, the unit dose products supported by the same peg 26 are products of the same type. The unit dose products supported by different pegs 26 inside the same housing unit 20 can be of the same type or different types. The housing unit is moved around inside the automatic store 10 while preferably keeping it in the vertical position illustrated in FIG. 4. As stated above, handling is done by means of a known type of handling apparatus, such as a stacker crane, a robot, a shuttle or similar means, provided with grasping means such as pincers or jaws or the like, capable of engaging in the gripping notches 30. Controlling the accelerations when handling the housing unit 20 prevents the unit dose products from coming off from the pegs 26 and out of the housing unit 20 itself. Where it is not possible to control the accelerations, or where it is wished to achieve very high speeds when transferring the housing units 20, or where it is necessary to transport the housing units 20 outside the automatic store 20, for example if they are to be loaded by an external system, it is possible to provide a cover 31 for closing off the box-shaped body 21. The cover 31 is preferably locked onto the box-shaped body 21, for example by means of teeth or pins 32 that engage in the gripping notches 30, and/or by means of a locking system 34 that interacts with the slot 33 made in the front part of the box-shaped body 21. The cover 31 allows the housing unit 20 to also be moved into positions other than the vertical position illustrated in FIG. 4, because the unit dose products are held on the pegs 26 by the cover 31, which in its closed position preferably touches the ends of the pegs 26.

[0036] With reference now to FIGS. 1 and 2, the automatic store comprises a storage zone 12 intended to receive a multiplicity of housing units 20. The housing units 20 are positioned so as to be removable on shelves 14, from which they can be picked or onto which they can be put by known handling members, such as stacker cranes, cradles, shuttles, manipulators, robots and other means generally known to experts in the sector, which will not be described more fully below.

[0037] The automatic store 10 also comprises a picking zone 16 from which it is possible to pick the desired unit dose products for the subsequent distribution thereof according to desired methods, for example by grouping them together according to specific medical prescriptions for a particular patient or for particular hospital departments. The picking zone 16 comprises one or more shelves 15 open on two sides, both towards the storage zone 12 and towards the outside of the automatic store 10. One or more picking members 18 and one or more grouping members R are arranged facing the picking zone 16. The latter can be of a generally known type, for example as described in EP 1346931 from the same applicant, and will not be described here in any greater detail.

[0038] As can be seen more clearly in FIG. 3, each shelf 15 of the picking zone 16 comprises a plurality of bearing planes 40, on which one or more housing units 20 can be put, thrust in from inside the automatic store. The distance between bearing planes 40 substantially corresponds to the height of the box-shaped bodies 21 of the housing units 20, so as to create custom-made housings for the box-shaped bodies 21 and to reduce the empty spaces on the shelf 15. FIG. 4 shows, by way of example, two types of housing unit 20 and 20 having different heights, which can be inserted onto different shelf zones 15 depending on the distance between the bearing planes 40. On each bearing plane 40, in a position facing outwards, locators 42 are provided, into which the slots 33 of the box-shaped bodies 21 will be engaged. Fundamentally, the box-shaped bodies 21 can be placed on the planes 40 of the shelf 15 in predetermined positions, being thrust from behind by the store handling member, until the slots 34 hook onto the locators 42 so as to prevent them from coming away from the shelf 15. In this position, the pegs 16 face towards the outside of the automatic store 10, facing the picking members 18.

[0039] When a shelf 15 is full of housing units 20, from the outside this substantially constitutes a wall of pegs 16 from which suitable unit dose products can be picked, supported by the appropriate supports S. The automated picking system controls the manoeuvring of the picking members 18, directing them towards specific positions on the vertical plane of the shelf 15. A grasping member 17 mounted on the picking member 18, for example a sucker, arranges for the support S related to the required unit dose product to be moved away from the corresponding peg 16, so that it can be moved towards the grouping member R or towards any other member that is provided downstream of the automatic store 10 for this purpose.

[0040] From a logistical point of view, the system of the present invention allows not only greater storage density but also a much higher picking and distribution speed for unit dose products than with the systems of the prior art. The management of the products is in fact subdivided into two subsystems: on the one hand, the housing units 20 are quickly moved away from and towards the picking zone 16 because this can be done by machines, such as stacker cranes, shuttles and similar means, that are very fast and efficient, particularly when handling standardised objects such as the box-shaped bodies 21. Moreover, the handling of the housing units 20 allows unit dose products of different types, housed in the same housing unit 20, to be quickly made available in the picking zone 16. The housing units 20 are also handled asynchronously relative to the picking of the products by the picking members 18: the housing units 20 not involved in picking can be removed from the picking zone 16 and replaced by other housing units 20 picked from the storage zone 12 in the meantime. On the other hand, with good logistical planning when handling the housing units 20 according to the unit dose products housed in each of the housing units, the unit dose products presented on the shelves 15 can be picked almost continuously. The housing units 20 placed on the bearing planes 40 of the picking zone 16 are in fact replaced continuously, anticipating picking requests for particular unit dose products. The housing units 20 on the shelves 15 are replaced, while the picking members 18 are busy with picking unit dose products already located in the picking zone 16, from other housing units 20. Naturally, the picking speed increases as the capacity of the picking zone 16 increases, and in particular depending on the number of housing units 20 that can be placed simultaneously on the shelves 15.

[0041] The automatic store 10 can be configured modularly according to the specific needs of each individual installation. In particular, the number and arrangement of the shelves 15 can vary from what has been described and illustrated above by way of example. It is in fact possible to produce an installation comprising, for example, more than one picking zone 16, each with one or more shelves 15, so as to adapt to the size and shape of the premises and operating methods of the staff of a particular hospital pharmacy or similar.

[0042] With reference now to FIG. 5 to 8, a collecting unit 110 for products packaged in unit doses comprises a frame 112 formed by uprights 111 and cross-pieces 113. In use, the frame 112 is covered by a protective casing, which is not illustrated in the figures for the sake of clarity. The frame 112 supports a rack 114 comprising a plurality of pegs 116 projecting out from a substantially vertical reference plane P. The reference plane P is preferably produced having one or more panels 118 side by side and fixed to the frame 112. The arrangement of the pegs 116 on the rack 114 preferably follows a pattern of rows and columns so that the position of each peg can easily be identified by a pair of whole values (A, B) corresponding to the corresponding row and column. Each pair of values is then associated with a precise pair of coordinates (X, Y) on the reference plane P corresponding to the actual position of each peg 116 relative to a predetermined reference origin. Preferably, but not restrictively, the rack 114 comprises two or more separate rack zones in which the reciprocal distance between the pegs is correspondingly different, so that each of the separate rack zones can house packs of unit dose products in various sizes as compactly as possible. In the example in the figures, the rack 114 is subdivided into two superimposed separate rack zones 114a, 114b, in which the upper rack zone 114a has pegs 116 closer together, to receive packs of unit dose products that are smaller than the broader packs that can be received in the lower rack zone 114b.

[0043] The frame 112 is preferably provided with height-adjustable support feet 120, by means of which it is possible to adapt the frame both to the shape of the floor and to the height of the other components of the automatic store system. The frame 112 is further provided with coupling members 122 that allow the frame 112 to be joined securely to a picking unit 124 for products packaged in unit doses. In this way, the collecting unit 110 of the present invention can easily be used as an optional or additional unit in a pre-existing automatic store. Preferably but not restrictively, the frame 112 also supports and houses one or more grouping members 126 intended to group together and label one or more unit dose products for subsequent distribution thereof, for example to various hospital departments, to fulfil medical prescriptions for patients. Each grouping member 126 is mounted on a support plane 127 fixed to the frame 112. The products grouped together by a grouping member 126 are dispatched on an outlet ramp 129 that directs them onto conveyor belts 131 for delivery to the final picking or further management destination.

[0044] As can be seen more clearly in the enlargement in FIG. 3, the pegs 118 are mounted on the panels 118 so that they project towards the picking unit 124, and therefore towards the product picking face of the automatic store M, indicated only diagrammatically with a broken line in FIG. 4. The automatic store M is connected in a known manner to the picking unit 124 for selectively picking products packaged in unit doses, which in this case is placed between the product picking face of the store M and the collecting unit 110.

[0045] The pegs 118 of the rack 114 are tilted slightly upwards, so that the products hanging therefrom bear against one another, and ultimately against the panels 118, by means of gravity. Naturally, each peg 118 can support one or more products packaged in unit doses, the packs of which are provided with holes, eyelets, hooks or similar elements, by which they can be hung from the pegs 118. On the sides of each peg 118, there are containing and separating tabs or partitions 119 projecting from the panels 118, allowing the packs of unit dose products hanging from each peg 118 to be held in a predefined position in order to prevent them from interfering with the packs hanging from an adjacent peg 118.

[0046] The automatic store M can be of the generally known type, for example from EP 1346929 from the same applicant, or of the type described above and shown in one of the preferred but not restrictive embodiments thereof in FIG. 1 to 4. The picking unit 124 coupled to the automatic store M preferably comprises a frame 126 that supports a handling assembly 128 of a picking member 130 that can be displaced into a desired position, identified by coordinates X-Y, on a substantially vertical plane facing the store M that is substantially parallel to the plane P of the rack 114 of the collecting unit. The picking member 130 can alternatively turn towards the store M so as to pick a unit dose product and towards the collecting unit 110 in order to place the unit dose product on the rack 114 or to deliver it to one of the grouping members 126. The picking member 130 can also operate by facing solely towards the collecting unit 110 so as to pick a unit dose product from the rack 114 and deliver it to one of the grouping members 126. The picking member 130 can also be used for picking a unit dose product from a given position on the rack 114 or on the store M and transporting it to another given position on the rack 114 or on the store M, for the purposes of reorganising the unit dose products, for example to optimise their picking position on the basis of various kinds of criteria, for example relating to the rotational and usage speed of the products. From this point of view, the use of the collecting unit 110 is particularly beneficial for collecting mainly or even exclusively those products that are used continuously, a great deal or urgently in medical prescriptions, for example antibiotic or anti-inflammatory products, disinfectants, normal saline, syringes, dressings, gauze, etc.

[0047] The adoption of the collecting unit 110 makes it possible to optimise the operations of picking and distributing the products packaged in unit doses. The collecting unit can in fact act as a product collection buffer, on which various products picked from the store M can be positioned in turn while waiting to be grouped together by the grouping members 126. The operations of picking products from the store M can therefore occur at different times and not necessarily sequentially relative to the logistical organisation of grouping the products together by the grouping members 126 in order to make up and deliver the groups of products for a single medical prescription. This is particularly advantageous in order to best exploit the productive capacity of the grouping members 126, separating their feed flow from that of the picking of products from the store M. Moreover, picking products from the store M can advantageously exploit the downtime between one delivery and another, for example bringing forward the collection of products from the store M during the night, bringing forward the grouping of products for delivery the next day. Since the rack 114 of the collecting unit 110 is right next to the grouping members 126, and the products are all available on a single plane P that can be quickly accessed by the picking member 130, unit dose products can be supplied from the collecting unit 110 to the grouping members 126 much quicker than happens on average with direct picking from the store M, in which the products generally have to be transferred each time from locations inside the store to the front wall facing the picking unit 124.

[0048] Naturally, without prejudice to the principle of the invention, the embodiments and the implementation details can vary greatly while remaining within the scope of the present technology.