Patent Application
20210284430
The present disclosure relates to a storage and dispensing station for drugs.
One or more embodiments include a storage and dispensing station for drug portions. The storage and dispensing station includes a receiving space for drug portions to be separated, the receiving space having a feed section adapted to the drug portions to be separated, with a base section and a dispensing opening. The storage and dispensing station also includes an ejection device for moving a drug portion through the dispensing opening, the ejection device having a slide which can be moved in the feed section towards the dispensing opening and a slide drive coupled to the slide for moving the slide. The storage and dispensing station further includes a lock which can be moved in the feed section and which can be moved in the feed section such that when a drug portion is moved towards the dispensing opening, movement of drug portions in the feed section is prevented.
One or more embodiments include a storage and dispensing station for drug portions. The storage and dispensing station includes a receiving trough having an outer dispensing opening and a magazine unit rotatably arranged in the receiving trough. The magazine unit includes a cover and one or more receiving spaces configured to receive drug portions to be separate. Each receiving space includes a feed section, a base section and a dispensing opening. The storage and dispensing station also includes an ejection device having a slide and a lock. The ejection device is configured to move the slide within the feed section towards a receiving space dispensing opening that is rotatably aligned with the outer dispensing opening of the receiving trough, the movement of the slide configured to move a first drug portion through the receiving space dispensing opening and the outer dispensing opening.
The foregoing and other features, aspects and advantages of the disclosed embodiments will become more apparent from the following detailed description and accompanying drawings.
In the following, the inventive storage and dispensing station for drug portions is described in more detail with reference to the accompanying drawing, in which
The detailed description set forth below describes various configurations of the subject technology and is not intended to represent the only configurations in which the subject technology may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of the subject technology. Accordingly, dimensions are provided in regard to certain aspects as non-limiting examples. However, it will be apparent to those skilled in the art that the subject technology may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts of the subject technology.
It is to be understood that the present disclosure includes examples of the subject technology and does not limit the scope of the appended claims. Various aspects of the subject technology will now be disclosed according to particular but non-limiting examples. Various embodiments described in the present disclosure may be carried out in different ways and variations, and in accordance with a desired application or implementation.
Depending on the expansion stage, modern blister machines, as disclosed, for example, in WO 2013/034504 A1, comprise several hundred storage and dispensing stations for drugs. In each of these, a plurality of drug portions of a particular drug type is stored, and individual or a plurality of drug portions can be dispensed on demand. With the blister machine, the drugs stored in the storage and dispensing stations are compiled and blistered patient-specifically according to the medically prescribed administration times.
For the assembly of the drug portions, corresponding storage and dispensing stations are actuated for dispensing one or more individual drug portions. When actuating a storage and dispensing station, a single drug portion is separated with a singulator and transferred to a guide device of the blister machine via a dispensing opening. By means of the guide device, a corresponding drug portion, optionally with the interposition of a collecting device, is fed to a packaging device which blisters individual or multiple drug portions according to the medical requirements.
The singulator of known storage and dispensing stations used for separating drug portions is usually designed in the shape of a circular cylinder and is formed in a corresponding guide space of the storage container. A plurality of drug channels is provided on the circumference of the singulator. By rotating the singulator, a drug channel loaded with at least one drug portion is rotated over a dispensing opening in the bottom surface of the storage container, so that the drug portion located in the channel can fall out of the drug channel. A retention device is provided above the drug channel aligned at the dispensing opening, in order to prevent further drug portions arranged above the drug channel from slipping down, said drug channel being aligned at the dispensing opening. Depending on the type of drug to be separated, it can also be provided that this retention device is guided in a slot which is introduced into the singulator in the region of the drug channels.
Due to the rotation of the singulator used and the friction of the drug portions against one another and against the separating device, drug dust is generated, which makes regular cleaning of the storage and dispensing station necessary.
In the case of capsule-shaped drug portions in particular, the delivery speed is problematic when using known singulators. Capsule-shaped drug portions are regularly very light, in addition there is an increased friction between the surface of the drug portions and the drug channels. Furthermore, there is an electrostatic charge on the capsules, in particular in the case of capsule-shaped drug portions, as a result of which an attraction to the drug channel wall arises. Taken together, these circumstances cause capsule-shaped drug portions to drop out of the drug channel so slowly that the blistering speed of modern blister machines is restricted.
It is an object of the present disclosure to provide a storage and dispensing station with which all types of drug portions can be dispensed quickly and with a reduced development of drug dust.
The storage and dispensing station according to the disclosure comprises a receiving space for drug portions to be separated, the receiving space having a feed section with a bottom portion and a dispensing opening adapted to the drug portions to be separated. The feed section ensures that only a defined number of drug portions rests on the bottom section. In order to achieve this, the feed section is adapted to the shape of the drug portions to be separated. The receiving space arranged above the feed section can be designed differently depending on the drug portions to be separated. If, for example, spherical drug portions are to be separated, the receiving space can expand conically upwards. If, on the other hand, for example, capsule-shaped drug portions are to be separated, it can be provided that the shape of the receiving space is the same as that of the feed section.
The storage and dispensing station according to the disclosure further comprises an ejection device for moving a drug portion in the ejection direction through the dispensing opening, the ejection device having a slide which can be moved in the feed section towards the dispensing opening and a slide drive coupled to the slide for moving the slide. In contrast to the case with storage and dispensing stations according to the prior art, in which the drug portions are delivered by gravity, an active ejection device is provided according to the disclosure. In such a case, it is necessary to provide a drive that is necessary to eject the drug portions, but in such a case, significantly higher dispensing speeds can also be achieved with otherwise rather “slowly” falling drug portions. Since no rotating singulator is used for separating and dispensing drug portions, significantly less drug dust is generated and the storage and dispensing station has to be cleaned less frequently.
In order to prevent that the drug portion arranged above the drug portion that was just dispensed is moved into the free space of the feed section during the process of ejecting or dispensing a drug portion, which could possibly prevent the slide from moving back, the storage and dispensing station also includes a lock that is movable in the feed section, which is movable in the feed section in such a way that when a drug portion is moved toward the dispensing opening, the movement of drug portions in or into the feed section is prevented. For this purpose, the lock itself can be moved completely within the feed section; alternatively, it is also conceivable that the movable lock is moved into or over the feed section via an opening in or above the feed section in such a way that a drug portion is prevented from slipping down.
Another advantage of the storage and dispensing station according to the disclosure is that, due to the unnecessary singulator, more space is available for receiving drug portions.
In the storage and dispensing station according to the disclosure, a slide is provided for moving a drug portion to be dispensed and a lock for preventing a drug portion from slipping. These two components can be separate components that can be moved using different drives. In order to keep the structure of the storage and dispensing station according to the disclosure as simple as possible, it is provided in one or more embodiments that the slide and the lock are coupled in such a way that both can be moved via the slide drive provided according to the disclosure. A correspondingly synchronous movement is possible, since the lock must be moved when the slide is moved. In order to further simplify the construction of the storage and dispensing station according to the disclosure, it is provided in one or more embodiments that the slide and the lock are designed as a uniform slide-lock element, this slide-lock element preferably being formed in one piece, for example as a kind of bolt, in which the end face serves as a slide and the “upper” peripheral section as a lock.
Due to the use of an active ejection device, it is relatively unlikely that no drug portion will be dispensed when the slide is moved. However, in order to detect even the unlikely event that no drug portion is dispensed when the slide is moved, it is provided in one or more embodiments that the dispensing opening is assigned a sensor which can detect the dispensing of a drug portion through the dispensing opening.
The use of the active ejection device enables a quick dispensing of a drug portion for all types of drug portions, with a simultaneous reduction in the development of drug dust. In the event that several drug portions of the same type of drug are to be dispensed and only one storage and dispensing station is provided for this type of drug, the rate at which a drug portion slides into or in the feed section determines how quickly another drug portion can be dispensed. In the case of capsule-shaped drug portions in particular, this means that although the first drug portion can be dispensed quickly, the dispensing of the second drug portion from the same storage and dispensing station takes place only at a reduced speed (for the reasons mentioned above). In order to also further increase the dispensing speed of a plurality of drug portions, it is provided in one or more embodiments that the storage and dispensing station has a plurality of feed sections with a base section and a dispensing opening, wherein each feed section can be coupled to the ejection device for dispensing a drug portion. For this purpose, it is conceivable, for example, that the feed sections are moved in relation to the slide, in other words, that a different feed section is fed to the slide after dispensing a drug portion.
In order to realize the use of a plurality of feed sections in a structurally space-saving manner, it is provided in one or more embodiments that the plurality of feed sections is arranged in a rotatable magazine unit, the magazine unit being coupled to a magazine compartment drive in such a way that the magazine unit is rotated after dispensing a drug portion out of one feed section such that a drug portion can be dispensed from another feed section.
The rotating movement of the magazine unit can be carried out by a special, very responsive drive. It can thus be achieved that drug portions can be dispensed more quickly than it can be achieved by “waiting” for a drug portion to slide down after dispensing the previous portion of medication. In order to avoid the use of several drives, it is provided in one or more embodiments of the storage and dispensing station according to the disclosure that the slide drive comprises an actuator coupled to the magazine unit, the coupling being designed such that a rotary movement of the magazine unit is effected after dispensing a drug portion.
With typical storage and dispensing stations, it is necessary for the drug channels to be adapted to the drug portions to be separated. Also in the storage and dispensing station according to the disclosure, it is necessary that the feed section is adapted to the shape and size of the drug portions to be separated when separating drug portions. In order to reduce the downtime of a storage and dispensing station when refilling drug portions and to simplify adaptation of the storage and dispensing station to differently shaped drug portions, it is provided in one or more embodiments that the magazine unit is interchangeably arranged in the storage and dispensing station.
The magazine unit will regularly be empty when changing. However, it can happen that a magazine unit is changed before all drug portions have been dispensed (e.g., when the picking device is stopped in the evening). In order to avoid that drug portions fall out of the dispensing openings when a non-empty magazine unit is removed out of or from the storage and dispensing station or when a full magazine unit is inserted, it is provided in one or more embodiments that the storage and dispensing station has a security device which is guided on the circumference of the magazine unit and which blocks the dispensing openings when the magazine unit is removed.
In the storage and dispensing station according to the disclosure, the speed at which the slide moves a drug portion out of the dispensing opening largely determines the overall speed at which the storage and dispensing station can dispense drug portions. In one or more embodiments it is provided that the slide drive comprises a lifting magnet. A lifting magnet is structurally very simple and can be controlled extremely quickly. Furthermore, a very high ejection speed and force can be achieved with a lifting magnet.
The picking device, in which the storage and dispensing stations according to the disclosure are used, knows the fill level of these stations precisely and notifies a user if refilling is necessary within a defined period. However, it has been found that users wish that the fill level can also be read optically. This can be achieved, for example, by producing the area in which the drug portions are stored from a transparent material. However, since this is possibly associated with some disadvantages (e.g., in the manufacture of the storage and dispensing stations), it is provided in one or more embodiments that the receiving space and the feed section or sections have a viewing area which allows the fill level to be read. This viewing area can, for example, simply be designed as a slot in the wall of the receiving space if the type of drug to be separated does not tend to form dust. As another example, a transparent material can be used only in this area or can be inserted into a slot.
One or more embodiments of a storage and dispensing station 1 according to the disclosure is described in more detail below. One or more embodiments described here are adapted for capsule-shaped drug portions 7. The storage and dispensing station 1 according to the disclosure shown in
As can be seen in
Furthermore, a securing device 3 is indicated around the magazine unit 10, which is designed as a simple ring which abuts against the outer wall of the magazine unit 10. If the magazine unit 10 is removed from the receiving trough 20, the securing device 3 slides down and blocks the dispensing openings 12 of the magazine unit 10.
The magazine unit 10 is omitted in the illustration according to
The ejection device 30 is shown in
The mode of operation of the storage and dispensing station 1 according to the disclosure can be seen from
The present disclosure is provided to enable any person skilled in the art to practice the various aspects described herein. The disclosure provides various examples of the subject technology, and the subject technology is not limited to these examples. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects.
A reference to an element in the singular is not intended to mean “one and only one” unless specifically so stated, but rather “one or more.” Unless specifically stated otherwise, the term “some” refers to one or more. Pronouns in the masculine (e.g., his) include the feminine and neuter gender (e.g., her and its) and vice versa. Headings and subheadings, if any, are used for convenience only and do not limit the subject technology.
The word “exemplary” or the term “for example” is used herein to mean “serving as an example or illustration.” Any aspect or design described herein as “exemplary” or “for example” is not necessarily to be construed as preferred or advantageous over other aspects or designs. In one aspect, various alternative configurations and operations described herein may be considered to be at least equivalent.
As used herein, the phrase “at least one of” preceding a series of items, with the term “or” to separate any of the items, modifies the list as a whole, rather than each item of the list. The phrase “at least one of” does not require selection of at least one item; rather, the phrase allows a meaning that includes at least one of any one of the items, and/or at least one of any combination of the items, and/or at least one of each of the items. By way of example, the phrase “at least one of A, B, or C” may refer to: only A, only B, or only C; or any combination of A, B, and C.
A phrase such as an “aspect” does not imply that such aspect is essential to the subject technology or that such aspect applies to all configurations of the subject technology. A disclosure relating to an aspect may apply to all configurations, or one or more configurations. An aspect may provide one or more examples. A phrase such as an aspect may refer to one or more aspects and vice versa. A phrase such as an “embodiment” does not imply that such embodiment is essential to the subject technology or that such embodiment applies to all configurations of the subject technology. A disclosure relating to an embodiment may apply to all embodiments, or one or more embodiments. An embodiment may provide one or more examples. A phrase such an embodiment may refer to one or more embodiments and vice versa. A phrase such as a “configuration” does not imply that such configuration is essential to the subject technology or that such configuration applies to all configurations of the subject technology. A disclosure relating to a configuration may apply to all configurations, or one or more configurations. A configuration may provide one or more examples. A phrase such a configuration may refer to one or more configurations and vice versa.
In one aspect, unless otherwise stated, all measurements, values, ratings, positions, magnitudes, sizes, and other specifications that are set forth in this specification, including in the claims that follow, are approximate, not exact. In one aspect, they are intended to have a reasonable range that is consistent with the functions to which they relate and with what is customary in the art to which they pertain.
It is understood that the specific order or hierarchy of steps, operations or processes disclosed is an illustration of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps, operations or processes may be rearranged. Some of the steps, operations or processes may be performed simultaneously. Some or all of the steps, operations, or processes may be performed automatically, without the intervention of a user. The accompanying method claims, if any, present elements of the various steps, operations or processes in a sample order, and are not meant to be limited to the specific order or hierarchy presented.
All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether such disclosure is explicitly recited in the claims. No claim element is to be construed under the provisions of 35 U.S.C. § 112 (f) unless the element is expressly recited using the phrase “means for” or, in the case of a method claim, the element is recited using the phrase “step for.” Furthermore, to the extent that the term “include,” “have,” or the like is used, such term is intended to be inclusive in a manner similar to the term “comprise” as “comprise” is interpreted when employed as a transitional word in a claim.
The Title, Background, Summary, Brief Description of the Drawings and Abstract of the disclosure are hereby incorporated into the disclosure and are provided as illustrative examples of the disclosure, not as restrictive descriptions. It is submitted with the understanding that they will not be used to limit the scope or meaning of the claims. In addition, in the Detailed Description, it can be seen that the description provides illustrative examples and the various features are grouped together in various embodiments for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed subject matter requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed configuration or operation. The following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separately claimed subject matter.
The claims are not intended to be limited to the aspects described herein, but are to be accorded the full scope consistent with the language claims and to encompass all legal equivalents. Notwithstanding, none of the claims are intended to embrace subject matter that fails to satisfy the requirement of 35 U.S.C. § 101, 102, or 103, nor should they be interpreted in such a way.
