PILL DISPENSING ASSEMBLY AND METHOD OF USE
20200121560 ยท 2020-04-23
Inventors
Cpc classification
B65D83/0454
PERFORMING OPERATIONS; TRANSPORTING
A61J7/0436
HUMAN NECESSITIES
International classification
A61J7/00
HUMAN NECESSITIES
A61J7/04
HUMAN NECESSITIES
Abstract
A pill dispensing assembly is provided herein for safe and tamper proof dispensing of solid, oral medications (e.g., pills) and tracking the use of the same. Methods of using the pill dispensing assembly are also provided herein. The pill dispensing assembly can contain as few as two mechanical components in conjunction with accessory parts. For example, the pill dispensing assembly can contain an indexing cover layer and a container layer. The indexing cover layer can contain an exit port and an index lock and the container layer can contain elements that hold pills for storing and dispensing such as pockets as well as an index slot array that interacts with index lock. The pill dispensing assembly is designed to dispense a single pill at a time through a mechanically actuated indexing movement of indexing cover layer in relation to container layer. Structural elements involved in the indexing movement are concealed and inaccessible to the user to control tampering.
Claims
1. A pill dispensing assembly comprising: an indexing cover layer comprising an interior facing surface, an exterior facing surface, a first side wall, a second side wall, an exit port for dispensing said pill to a user, and an indexing lock; a container layer comprising an interior facing surface, an exterior facing surface, a side wall, a plurality of pockets for holding pills during pill dispensing assembly use, and an index slot array comprising a plurality of slots and blocking surfaces between adjacent slots circumferentially and equally spaced about said side wall for indexing lock engagement; a compression wall that surrounds said side wall of said container layer wherein said compression wall contacts and depresses said indexing lock when said indexing lock is engaged with a slot and when compression wall is properly manipulated by the user, while also preventing direct user contact with said indexing lock and said index slot array; a controller and/or sensor, a detectable element array for sensor detection; and a post element; wherein said engagement of said indexing lock with said blocking surfaces blocks contact between said compression wall and said indexing lock.
2. The pill dispensing assembly of claim 1, wherein said plurality of pockets for holding pills are contained on an interchangeable pill tray that is positioned on said container layer.
3. The pill dispensing assembly of claim 1, wherein said indexing lock comprises a depressible tab.
4. The pill dispensing assembly of claim 1, wherein said indexing lock is mounted to said second side wall of indexing cover layer.
5. The pill dispensing assembly of claim 1, wherein said interior facing surface of said container layer is sloped toward pockets of pill tray to guide pills to the pockets during loading operation.
6. The pill dispensing assembly of claim 1, wherein said indexing lock and/or said slots comprise sloped leading edges and blocking rear edges to promote unidirectional rotation of indexing cover layer in relation to container layer.
7. The pill dispensing assembly of claim 1, wherein said pill tray comprises a null position with no pocket.
8. The pill dispensing assembly of claim 1 further comprising a controller slot for housing said controller positioned on said interior facing surface of said indexing cover layer.
9. The pill dispensing assembly of claim 1 wherein said container layer further comprises a plurality of deflector elements positioned on an inner surface of said side wall for deflecting pills toward pockets in said pill tray during loading operation.
10. The pill dispensing assembly of claim 1 further comprising a post element comprising a first end and a second end and wherein said second end is affixed to said interior facing surface of said container layer and said first end is mechanically engaged to said indexing cover layer such that index cover layer's rotatability in relation to container layer is preserved.
11. The pill dispensing assembly of claim 1 wherein said indexing cover layer further comprises a gripping element for a user to grip and turn the indexing cover layer in relation to the container layer.
12. The pill dispensing assembly of claim 1 wherein said container layer further comprises a spin bump centrally positioned on the exterior facing surface of said container layer.
13. The pill dispensing assembly of claim 1 further comprising seal element that substantially prohibits the ingress of moisture and contamination of pills stored in said plurality of pockets.
14. The pill dispensing assembly of claim 1 wherein said container layer further comprises one or more anti-tampering barriers which substantially disrupt access routes to said sensor through exit port.
15. The pill dispensing assembly of claim 1 further comprising a funnel for loading pills into the pill tray during loading operation.
16. A pill dispensing assembly consisting of: an indexing cover layer comprising an interior facing surface, an exterior facing surface, a first side wall, a second side wall, an exit port for dispensing said pill to a user, and an indexing lock; a container layer comprising an interior facing surface, an exterior facing surface, a side wall, a plurality of pockets for holding pills during pill dispensing assembly use, and an index slot array comprising a plurality of slots and blocking surfaces between adjacent slots circumferentially and equally spaced about said side wall for indexing lock engagement; and a compression wall that is integral to and surrounds said side wall of said container layer wherein said compression wall contacts and depresses said indexing lock when said indexing lock is engaged with a slot and when compression wall is properly manipulated by the user, while also preventing direct user contact with said indexing lock and said index slot array.
17. A method of loading, dispensing, and tracking the prescriptive use of pills with a pill dispensing assembly comprising: providing an unassembled pill dispensing assembly comprising an indexing cover layer comprising a depressible indexing lock, a container layer comprising an index slot array with a plurality of circumferentially and equally spaced slots, a plurality of interchangeable pill trays comprising pill pockets, and a loading funnel; placing said container layer on a flat surface; placing the loading funnel upon said container layer, pouring pills into said loading funnel and distributing said pills into said pockets; and removing said loading funnel and attaching said indexing cover layer to said container layer to produce a fully assembled pill dispensing assembly.
18. The method of claim 17, further comprising the steps of: depressing said depressible indexing lock and disengaging said indexing lock from a slot within the plurality of circumferentially and equally spaced slots; rotating said indexing cover layer in relation to container layer until indexing lock engages the next slot in the plurality of circumferentially and equally spaced slots; and inverting the pill dispensing assembly and dispense the pill from said exit port.
19. The method of claim 17, wherein said depressing step is performed by a compression wall surrounding the container layer.
20. The method of claim 17, further comprising the steps of: taking a time stamp of the rotating step with a sensor when said sensor is aligned with and senses a single detectable element of a plurality of detectable elements in a detectable element array; wherein each detectable element of said plurality of detectable elements corresponds to a pill pocket; and recording and storing said time stamp in memory.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0016]
[0017]
[0018]
[0019]
[0020]
[0021]
[0022]
DETAILED DESCRIPTION
[0023] The following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments. As used herein, the word exemplary or illustrative means serving as an example, instance, or illustration. Any implementation described herein as exemplary or illustrative is not necessarily to be construed as preferred or advantageous over other implementations. All of the implementations described below are exemplary implementations provided to enable persons skilled in the art to make or use the embodiments of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. For purposes of description herein, the terms first, second, left, right, rear, front. vertical, horizontal, top, bottom, outer, inner and derivatives thereof shall relate to the invention as oriented in
[0024] It should be noted that although the discussions herein can refer to a specific order and composition of method steps, it is understood that the order of these steps can differ from what is described. For example, two or more steps can be performed concurrently or with partial concurrence. Also, some method steps that are performed as discrete steps can be combined, steps being performed as a combined step can be separated into discrete steps, the sequence of certain processes can be reversed or otherwise varied, and the nature or number of discrete processes can be altered or varied. The order or sequence of any element or apparatus can be varied or substituted according to alternative embodiments. Accordingly, all such modifications are intended to be included within the scope of the present invention. Such variations will depend on designer choice and it is understood that all such variations are within the scope of the invention.
[0025] At the outset, it should be clearly understood that like reference numerals are intended to identify the same structural elements, portions, or surfaces consistently throughout the several drawing figures, as can be further described or explained by the entire written specification of which this detailed description is an integral part. The drawings are intended to be read together with the specification and are to be construed as a portion of the entire written description of this invention as required by 35 U.S.C. 112.
[0026] Referring now to embodiments shown in
[0027]
[0028] With reference to
[0029] With continued reference to
[0030] In one embodiment, the indexing cover layer 11 can include a gripping member 26 which, in some embodiments, protrudes upward from exterior or top surface of indexing cover layer 11 forming a grip surface for the user. The gripping member 26 can act as a handle or dial for the user to rotate indexing cover layer 11 with respect to container layer 12 thereby exposing exit port 14 to the next position of a pill tray 27 (and the pill contained therein) positioned within container layer 12, so that the pill can be dispensed via the exit port 14. In an alternative embodiment, the user can grasp the first side surface 17 (shown in
[0031] With continued reference to
[0032] In some embodiments, an outermost edge of pill tray 27 can comprise perforations about the perimeter of pill tray 27 such that the outermost edge can be manually detached from the main portion the pill tray 27 containing the pill pockets 29 either after the pills are loaded into the pockets 29 or after the pill dispensing assembly 10 is assembled. Removal of the outermost edge of pill tray 27 after it is no longer needed for the load operation can allow components of pill dispensing assembly to fit together more snugly.
[0033] In some embodiments, the pill dispensing assembly 10 can comprise a moisture proof seal or seal element 32. In one embodiment, the seal element is integral to the interior facing surface 16 of indexing cover layer 11 and comprises a substantially flat seal surface which engages and top surface 28 of pill tray 27 to create a moisture proof seal between pill tray 27 and bottom surface 16 of indexing cover layer 11. In another embodiment, the seal element 32 is affixed to the interior facing surface 16 of the indexing cover layer 11, for example, by gluing it to the surface. In another embodiment, such as the embodiment shown in
[0034] In another embodiment, pill dispensing assembly 10 can comprise a pocket cover 33 (not shown in the FIGS.). In some embodiments, the pocket cover 33 can comprise a thin segment of material that may be placed on top of a section of the container layer 12 or pill tray 27 to cover a desired number of pill pockets 29 prior to placing pills on top of the container layer 12 or pill tray 27 during the load operation described herein. The function of the pocket cover 33 is to prevent pills from entering one or more pill pocket positions when less than the full pill holding capacity of the pill dispensing assembly 10 is not needed and loading of adjacent consecutive pill pockets is desired. The pocket cover 33 can be configured with portions of material that extend downward into the pill pockets 29 toward the outer portion of the pill pockets 29 to restrict the size of the pill pockets 29 (pocket cover 29 is not shown in the Figures), thereby only allowing a single smaller pill to be loaded. Once the intended pills are loaded into the pill pockets 29, the pocket cover 33 may be removed to enable attachment of the container layer 12.
[0035] Referring to
[0036] With continued reference to
[0037] In other embodiments, the container layer 12 can include a ramp feature 40 as shown in
[0038] In the embodiment depicted in
[0039] As shown in the embodiment illustrated in
[0040] Referring to the embodiment shown in
[0041] The function of index slot array 44 is for the individual slot 45 surfaces to interact with the surfaces of the indexing lock 19 (described below) to allow the indexing cover layer 11 to be rotated with respect to the container layer 12 when the respective blocking surfaces are disengaged thereby allowing rotational independent movement between indexing cover layer 11 and container layer 12 and index to and stop at the next position due to reestablishment of the blocking interaction of surfaces upon recoil of indexing lock 19 to rest position to coincide with alignment of the exit port 14 with the next position of the pill tray 27, thereby exposing the pill therein to the exit port 14 for delivery external to the pill dispensing assembly 10 one pill at a time. The exit port 14 may be a straight passage or may be configured to exit perpendicular to the vertical axis.
[0042] As illustrated in
[0043] The indexing lock 19 can be configured such that it is slightly flexible and can be pushed inward toward the center of the container layer 11. Depressing the indexing lock 19 (or simultaneously multiple indexing locks in some embodiments), either via compression wall 13 or via direct contact with the user's fingers, will allow the container layer 11 to rotate with respect to the indexing cover layer 12 until the indexing lock 19 aligns with the next position in the index slot array 37 whereby the indexing lock 19 deflects back outward to its position of rest and engages the next position of the index slot array 37, thereby preventing further rotation in either direction. The indexing lock 19 may be configured such that it has a sloped surface that allows it to advance to the adjacent position of the index slot array 37 in one direction of travel when depressed and prevented from rotation in the opposite direction. The function of the indexing lock 19 is to interact with the index slot array 37 during the dispense operation described herein to index the exit port 14 to expose successive individual pockets 29 in the pill tray 27 thereby allowing pills to be dispensed external to the pill dispensing assembly 10 one at a time.
[0044]
[0045] Other configurations of the indexing lock can be used to allow this indexing operation via inward manual depression to disengage blocking surfaces. By blocking surfaces it is intended to mean the surfaces of the indexing lock and the index slot which interact to prevent rotation when the indexing lock is at rest position (e.g., fully engaged with the slot). This functionality offers a child proof dispensing operation that only allows advancement to next pill pocket and dispensing one tablet at a time per single depression of a hidden indexing lock 19 through manipulation of the adjacent portion of the compression wall 13 as indicated by an arrow 49 molded into the indexing cover layer 11, in some embodiments. Compression wall 13 prevents the need to make direct contact with the indexing lock 19 and adds a further measure of security (e.g. child proof, accidental duplicate dispensing). The example indexing mechanism disclosed herein is only one example; multiple catches and dis-engageable catch retention surfaces between indexing cover layer 11 and container layer 12 are envisioned and intended.
[0046] In the embodiment shown in
[0047] As shown in
[0048] Controller 23 can incorporate electronic components including processor, memory, a sensor(s) 21, and an input/output (I/O) devices. The processor can receive pill detection information from the sensor(s) 21 and records either the raw data, or information related to the raw data. For example, the processor can simply record in memory the time that individual pills are progressed to the exit port 14. In another example, the processor can calculate and record in memory other information relating to pill dispensing, such as a time duration between subsequent pill dispenses, or next dose time.
[0049] The processor can be operatively connected to an I/O device, which can serve as an output device to transmit and receive recorded pill timing information and other pill dosing information to a multitude of remote receiver types. Throughout this application, the phrase pill dosing information can include one or more of the following: a dosing non-compliance indication, a pharmacy ID, a pharmacist ID, a patient ID, prescribed drug information, etc. For example, the I/O device can include a radio transponder for transmitting/receiving wireless radio frequency (RF) signals between a multitude of remote transceiver/transponder types (e.g. RFID reader, cell phone equipped with reader technology) to automatically download dosing data from the device to computer system. Thus, the I/O device interface, which can be demand or automatically invoked via application software on a computer system (e.g. PC, cell phone) to interface with the device firmware. Downloaded data on the computer system can be processed by application software and make available useful interpretations and representations of accumulated dose data (e.g. graphical history over multiple filled prescriptions) and/or to trigger various electronic communication (e.g. text, phone call, emails, device alert) which can be used by a stakeholder such as a patient, pharmacist or doctor to determine if a patient is exhibiting inappropriate dosing patterns (e.g. is the patient exceeding number of tablets per time period).
[0050] The transceiver described above can be part of a passive or active Radio Frequency Identification (RFID) chip, such as a Battery Assisted Passive (BAP) tag, for example. Thus, communication with the I/O device can be performed wirelessly (e.g. RFID) or via a hardwired connection to the output port, for example. The processor can encrypt the recorded pill timing information and/or the pill dosing information that is stored in memory. This encryption can be performed such that only an authorized party, such as a pharmacist computer system, would be able to decrypt the data.
[0051] The controller 23 can include software, hardware, or any combination thereof to implement these features, and those described below. The processor can include an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), microprocessor/microcontroller, or any other type of processing circuit.
[0052] The processor can maintain an internal digital clock with date and time values. This internal clock could be initiated by a manufacturer of the pill dispensing assembly 10, or by a pill filling entity such as a pharmacy. Firmware executed by the processor could be used to monitor the electronic signal from the sensor(s) 21 via detection of detectable element array (iii) when the exit port 14 of the indexing cover layer 11 is indexed to the next pill pocket position in the pill tray 27 indicating that a tablet is dispensed and repeat that process for each table dispensed. These events would trigger the firmware to save a value associated with the times and date stamps of each dispense operation into internal memory. The electronic components of the controller 23 allow the contents of the memory to be downloaded for review in human readable form or for potential use by a wireless interfaced computer system (e.g. cell phone, pharmacy PC).
[0053] The processor can also be operatively connected to optional notification devices integrated into the device to provide a patient notification, such as the arrival of a dosage time, or a predefined amount of time passing after a suggested dosing time. The notification devices can include, for example, a vibrating transducer, LCD display, a light (e.g. a light emitting diode LED), or a sound-emitting device configured to provide a notification at a dosing time and other pertinent information.
[0054] The processor can also be operatively connected to an additional input device and a display. The additional input devices can include buttons on the device (switch closure inputs to controller) for example to allow the loader of tablets (e.g. a pharmacy) to store pill dosing schedule in the memory in a manual fashion or to manually trigger sync with cell phone for downloading data. The memory can also store encrypted and/or unencrypted personal information about a patient, including some of the pill dosing information discussed above (e.g. a photo identification number or another personal identifier, pharmacy ID, pharmacist ID, etc.).
[0055] A power source (e.g. a battery) can be used to power the controller 23, sensor 21 and any alert device, input device, and display as needed.
[0056] An optional display can be connected electronically to the controller 23 and mounted such that it is readable by the user external to the pill dispensing assembly 10 (e.g. incorporated either as part of the indexing cover layer 11 or container layer 12 and can be used to indicate dosing information to either a patient or caregiver (e.g. remaining time until next dose), or to a loader of tablets (e.g. an indicator of tampering or variance from the dosing schedule). For example, the display could display the time remaining until a subsequent dose and/or a time of a last dose display (LCD), for example. Thus, the display can also be used as a notification device as described above.
[0057] Detectable element array 35 can take the form of any detectable feature that any type of sensor can detect on any opposing layer a change based on positional alignment with one or more sensor(s) 21. In one embodiment, detectable element array 25 can be radially aligned alternating light and dark surfaces coinciding with individual positions of pill tray 27 and incorporated on the inner surface of the opposing internal surface of either the opposing indexing cover layer 11 or container layer 12. This allows the a light sensing sensor 21 to detect each transition of the dark and light surfaces noting each time the indexing cover layer 11 is indexed to the next position of the pill tray 27. Detection of this event allows the controller 23 to record the time each pill is dispensed. Other detection element arrays include optically distinguishable features such as a uniform barcode, and the like.
[0058] In one embodiment, to load the device, a pharmacist (or other user) can place the container layer 12 on a flat surface; select and insert an appropriate pill tray 27 depending on size and shape of pills for example; place an optional load funnel 57 (show in
[0059] Container layer 12 can optionally include one or more balancing elements 58 which may be one or more regions substantially located on the outer region of the bottom surface of the container layer 12. The function of the balancing elements 58 is to control the extent that the container layer 12 may be allowed to tilt during the load operation described herein. The ability to optionally tilt the pill dispensing assembly 10 can be utilized to facilitate movement of pills to pockets 29 into pill tray 27 that have yet to be filled during the loading process described herein.
[0060] Where preferred, the pharmacist or user can use a pill counting tool or the like to distribute pills amongst the pockets. In continued operation, the pharmacist can then remove the optional load funnel 57; remove the battery insulator strip to boot up the controller if used; and insert the indexing cover layer 11 over the keyed post element 50 until it snaps in place to complete assembly of the device. When assembled the exit port 14 is located on the null position 31 which does not contain a pill pocket. The pharmacist can then scan the device to log a unique device identifier and associate it with the specific prescription/patient. In a refill situation, the patient can return the device, and upload dose level data to the external computer system unless upload is achieved via other computer systems and application (e.g. cell phone). Presentation/use of the dose level data to drive various task/communications is covered in prior sections at only a high level but could include data presentations/controls/communications in response to dose patterns recognized by configurable software application as indicative of bad as well as good dosing behaviors (e.g. diversion, pre-addiction pattern, proper tapering pattern).
[0061] In some embodiments, the bottom, inner, or interior facing surface 16 of indexing cover layer 11, which contacts top, inner, or interior facing surface 28 of pill tray 27 about the pockets, can be composed of a seal surface 58 material which can be formed via two stage injection molding process. Seal surface 58 serves to prevent moisture ingress to pills. The indexing cover layer 11 can comprise a depressible indexing lock 19 which is configured to be depressed inward, but in its at-rest position engages and protrudes through an index slot array 44. The indexing lock 19 and slots 45 are configured such that rotation of the indexing cover layer 11 via dial 26 is allowed in one direction. The compression wall 13 is configured to cover the index slot array 44 so there is no direct user access to the indexing lock 19. In one embodiment, to index the device, the user holds the device in one palm, presses inward on the compression wall 13 at the spot indicated by the arrow on dial 26 with a fingertip, which coincides with the location of the indexing lock 19, then while depressed, rotates the dial 26 clockwise with their other hand. Once the indexing lock 19 reaches and is aligned with the next slot 45 position, the indexing lock 19 will automatically recoil outward and lock to prevent further rotation of the indexing cover layer 11 in either direction. This indexing action makes the next pill available for dispensing through the exit port 14 into the hand of the user upon inversion of the device. During indexing, sensor 21 can detect the positional change in the detectable element array 35. This allows the device to detect when each tablet is dispensed and to trigger the firmware to store the corresponding timestamp in its memory. The log of timestamps can be read via interface through the transceiver by an external computer system (e.g. cell phone, PC)/application software. To protect patient information, timestamp and other data can be encrypted and only converted/made human readable via software key only known by specific application/user. Presentation/use of the dose level data via computer system to drive various task/communications is covered at a high level in prior sections.
[0062] Since many modifications, variations, and changes in detail can be made to the described preferred embodiments of the invention, it is intended that all matters in the foregoing description and shown in the accompanying drawings be interpreted as illustrative and not in a limiting sense. Thus, the scope of the invention should be determined by the appended claims and their legal equivalence.