The present invention relates generally to the field of healthcare, and more specifically to devices that contain and/or dispense pills.
Lack of medication compliance is a problem costing in excess of $200 billion in the United States alone. Many patients with chronic conditions have difficulty adhering to prescribed therapies. In general, the more medications taken and the more times each day that patients must use various therapies, the more likely there will be a medication error. Medication errors can include failure to take a medication at an opportune time and failure to take a medication in its entirety.
Many studies that show that management of chronic diseases is less than ideal in spite of the great advances in medicine. Factors that have been implicated in disease management include poor compliance with medicine regimen because patients forget to take their medicines, frequent need to go the pharmacist for refills and education, need for frequent visit to the health care professional's office to monitor the treatment response and to make any required changes in medicine regimen, lack of adequate health education and inadequate reinforcement thereof, under or over dosing of medicine, altered dosing regimen, and incorrect administration of medicine (Kane, S. et al., Advanced Therapy for Inflammatory Bowel Disease; 2002:9-11). Even more worrisome is that patients frequently do not inform physicians of personal noncompliance with a medicine regimen. Physicians in such cases often conclude that patient's condition is not responding to the current medicine regimen and make changes in medicine dose, add or substitute another medicine. This results in unnecessary changes in patient's medicine regimen, including an increase in dosage not in accordance with the actual needs of the patient, but which in any set of circumstances can be detrimental to the health of the patient or even fatal. This practice also increases health care costs.
People take medicine for many different reasons. Sometimes the medication is taken for a short period of time. For example, a person with an ear infection may receive a prescription for a certain medicine that he is to take for a week or so. Other times the medication is taken for a long period of time, possibly for the foreseeable life of the patient. For example, a person with high blood pressure may take a certain medicine daily or even multiple times daily. People taking medicine for a long period of time may receive a prescription that enables them to receive a certain quantity of the medicine at a time. They then have the prescription refilled, up to a certain number of times. After, the prescription expires (all refills are used) the person, or someone caring for them (hereinafter referred to collectively and/or individually as user), may need to call the doctor or see the doctor to receive a refill of the prescription. Prescriptions in many cases involve pills distributed in bottles, typically plastic containers. A “pill” as used herein may include a prescription drug, an over-the-counter medication, a vitamin or nutritional supplement, caplet, capsule, or any other tablet like object which is designed to be ingested by the user.
The status of the prescription needs to be tracked to ensure that the prescription does not expire. A doctor's appointment may be necessary to renew the prescription or possibly modify the prescription. Depending on the type of insurance, the medication, and/or the pharmacy (e.g., brick-and-mortar, mail order) the prescription may need to be filled in advance of the time the medication will be needed. Accordingly, the timeline associated with the necessary steps required to get a prescription and receive the medication needs to be established in advance.
Several solutions to the problems associated with prescription drugs have been proposed. Prescription “vending machines” have been proposed. These devices contain a plurality of medications and dispense them at an appropriate time. Few of these devices have been commercialized since they are relatively expensive to manufacture and have limited capacity for various medications and due to the expense tend not to be feasible for home or even in-hospital use. The reliability of these devices in a remote setting is also questionable. The e-pill MD.2 Monitored Automatic Medication Dispenser (www.epill.com) is an example of such a device, although it only dispenses a single medication container.
Another category of medication management devices is an organizer/reminder device. Typically, these devices use small trays or compartments and are self-programmed by users to remind them to take medications at a specific time. Typically, the user fills the device as needed. Errors can result when users either self-program or self-fill such devices. These errors become more common as the complexity of the medication regimen increases. Conventional organizer/reminder devices do not prevent these kinds of errors, and an individual taking multiple prescriptions at different intervals can have difficulty when using such devices. Since these devices do not record medication usage, and are not connected to a support service, they can have a limited beneficial effect on the ability for a patient to adhere to her regimen.
A third category of medication management consists of using radio frequency (RF) tags incorporated into pill containers that employ sensing of prescription bottles, each of which has an RF tag associated therewith. These devices may result in a large number of pill containers being positioned on the sensing device. This results in difficulty for users of the devices since they have to place a large number of containers randomly on the device. Containers can become lost or RF tags can become dislodged from containers. An additional limitation of this approach is the need to fill a large number of medication containers with a number of different medications all taken at a specific time by the user. These containers must be filled with a high degree of accuracy and precision. Labeling of containers containing many medications may be difficult since the containers may not be large enough to hold a legible label listing required information for each medication in the pill container.
More recent innovation in the area of medication compliance includes incorporating sensory technology onto pill containers or into the caps of those containers. An example of this are devices that monitor when the cap of a prescription pill bottle has been removed. This information is stored electronically and may be uploaded to a data network using a remote docking station. This method is difficult with many medications, individual devices do not have a counting ability to determine the number of pills or doses remaining in the bottle. Such a lack of counting ability can result in false dispensing events and ultimate a lack of adherence to a medication schedule.
Another example of such a device uses a smart collar as a pill container cap. Such technological applications allow for the standard counting of pills remaining in the container based on the number of times that the cap is removed and replaced. However, such a device has no mechanism for counting the actual contents of the bottle, and thus the number of medications or pills left can he unknown.
Prior designs have attempted to use the closure of a medicine container as a surrogate marker for compliance. There are major disadvantages to designs that rely on medicine container cap removal as a measure of compliance. Medicine containers with caps allow access to the entire medicine supply during each dispensing event. Once the device recognizes the removal of the cap, any number of doses may be removed from the bottle without proper recognition, thus seriously compromising the device's ability to properly record compliance. Even more troublesome is the possibility that the cap device might not be reinstalled on the bottle. If not, the subsequent removal of pills from the bottle are unmonitored. No prior design provides the necessary reliability and inexpensive implementation as a viable alternative to today's plastic disposable containers that provides an enhanced level of safety for consumers. Such prior designs are inadequate in the ways described.
Therefore, there is a need for a pill dispensing design that addresses issues with the previous designs.
The following presents a simplified summary in order to provide a basic understanding of some aspects of the claimed subject matter. This summary is not an extensive overview and is not intended to identify key/critical elements or to delineate the scope of the claimed subject matter. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
The systems, methods, and devices of the design each have several aspects, no single one of which is solely responsible for its desirable attribute. Aspects of the present design provide an apparatus for monitoring patient adherence to a medication regime. The apparatus generally includes a container for holding objects, a housing mountable at an opening of the container, and at least one detector.
According to the present design, there is provided an apparatus comprising a bottle portion comprising electronics including an accelerometer, an acoustic sensor, and a processor, the bottle portion configured to hold a quantity of pills, and a cap portion joinable to the bottle portion. The accelerometer and processor are configured to determine at least one of an acceleration of shaking of the bottle portion and cap portion, and a tilting of the bottle portion to a predetermined orientation evidencing removal of at least one pill from the bottle portion. The acoustic sensor, accelerometer, and processor are configured to determine a frequency spectrum of an acoustic signal obtained when the bottle portion and cap portion are shaken and determine an estimated quantity of pills based on the frequency spectrum.
According to another embodiment of the present design, there is provided a medication container bottle system comprising a bottle portion comprising a display and a processor and configured to receive and maintain a quantity of pills, and a cap portion joinable to the bottle portion, wherein the cap portion and bottle portion comprise at least two of (a) an accelerometer provided with the bottle portion, (b) an acoustic sensor provided with the bottle portion, (c) a magnet provided with the cap portion and a corresponding magnetic sensor provided with the bottle portion, (d) an optical transmitter/receiver and a corresponding optical reflector provided with the bottle portion, and (e) at least one capacitive sensing electrode provided proximate an opening on the bottle portion.
According to a further embodiment, there is provided a bottle system, comprising a bottle portion comprising electronics including a display, an accelerometer, an acoustic sensor, and a processor, the bottle portion configured to hold a quantity of pills, and a cap portion joinable to the bottle portion. The accelerometer and processor are configured to determine an acceleration of shaking of the bottle portion and cap portion with the quantity of pills contained therein, and further wherein the acoustic sensor, accelerometer, and processor are configured to determine a frequency spectrum of an acoustic signal obtained when the bottle portion and cap portion are shaken and determine an estimated quantity of pills based on the frequency spectrum.
To the accomplishment of the foregoing and related ends, certain illustrative aspects are described herein in connection with the following description and the annexed drawings. These aspects are indicative, however, of but a few of the various ways in which the principles of the claimed subject matter may be employed and the claimed subject matter is intended to include all such aspects and their equivalents. Other advantages and novel features may become apparent from the following detailed description when considered in conjunction with the drawings.
In this document, the words “embodiment,” “variant,” and similar expressions are used to refer to particular apparatus, process, or article of manufacture, and not necessarily to the same apparatus, process, or article of manufacture. Thus, “one embodiment” (or a similar expression) used in one place or context can refer to a particular apparatus, process, or article of manufacture; the same or a similar expression in a different place can refer to a different apparatus, process, or article of manufacture. The expression “alternative embodiment” and similar phrases are used to indicate one of a number of different possible embodiments. The number of possible embodiments is not necessarily limited to two or any other quantity.
The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any embodiment or variant described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments or variants. All of the embodiments and variants described in this description are exemplary embodiments and variants provided to enable persons skilled in the art to make or use the invention, and not to limit the scope of legal protection afforded the invention, which is defined by the claims and their equivalents.
The word “pill” is used herein to mean “a capsule, pill, gel filled medicine, powered and compressed ingestible material, vitamins or any such similar object.” Any embodiment or variant described herein as “pill” is not necessarily to be construed as only pressed powder medicine.
When viewed in totality, the present design presents an overall subset of sensors on the system used to detect a quantity of objects within the bottle thus further enabling medication adherence. This subsystem can include a communication block or cloud-based platform to maintain connected communications to the medication bottle, a display for relaying medical/bottle content information to the user incorporated onto one side of the bottle, a cap for securing the contents of the bottle, a sensor or mechanical device incorporated into the cap, object removal detection sensors and mechanisms, and object counting sensors and mechanisms.
One aspect of the present design is a computer communication component offering connection to a network using a cellular phone. This component facilitates connection to a communication hub, such as a WiFi router, and a cellular tower. Such a connection permits cloud-based communications and rapid medication information updates, as well as easy user reminders for medication times.
Another aspect of the present design is detecting whether the pill bottle cap has been removed by use of a Hall magnetic sensor, or alternately a HAL sensor available from Micronas that employs Hall sensors. Another mechanism of detection of the pill cap removal uses a reflective optical sensor placed on the bottle. A third uses a mechanical switch.
Another aspect of the present design includes detecting when a pill has been dispensed from the bottle using capacitive sensing of a patient's finger or other such object which may enter the bottle to remove an object within. Such a sensor is designed to sense when a user is attempting to remove a pill, or a small number of pills, from the bottle with a finger without tipping the bottle to one side.
A further aspect of the present design includes detecting when a pill has been dispensed from the bottle using of a low power accelerometer. Such a mechanism detects when the pill has been tipped beyond a set angle thereby registering a dispensing event. As an additive application of the accelerometer, a system wide wake-up can be employed by detecting any movement of the pill bottle from a static position.
Another aspect of the present design includes detecting the quantity of objects remaining or contained in the pill bottle using acoustic signal detection. Such detection can be done by acoustic excitation such as a buzzer, or by shaking of the pill bottle and detecting the frequency spectrum and amplitude of the acoustic signal. Such a signal can then be used to determine the quantity of pills in the pill bottle.
Sensors used in or with the device are of particular note. Such a device can provide precise medication adherence as well as real time positive feedback information to the user and any medical providers working with the user. One feature described herein distinguishes between events of the bottle cap being opened and closed without removing a pill out versus one or more pills being removed from the bottle. A user may open a pill bottle and close the bottle to check on and identify the pills without physically removing any pills. The present design described here identifies this scenario and prevents false pill dispensing detection.
A further feature is the ability of the bottle to distinguish between how pills are taken from the bottle, pills taken by reaching into the bottle versus pills taken through tilting. This provides a broader range of possible detection methods contrasted against a broader number of potential human interactions with the bottle.
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Quantifying/Estimating Pill Amounts
Pills may be counted using different device provided with the present design. It is to be understood that some or all of the sensors disclosed may be provided in any combination.
Thus the user or another individual can employ a surface acoustic sensor with accelerometer to determine the number of pills inside the bottle by simply shaking the bottle. The processor in the bottle receive acoustic and acceleration signals, where shaking causes the pills to strike against the side of the bottle, resulting in an acoustic frequency and amplitude as well as an acceleration of the shaking. The accelerometer 126 receives the accelerations of the shaking performed. The frequency and amplitude of the totality of the pills present and striking the interior of bottle 102 is received by the surface acoustic sensor. The processor determines a graph similar to that shown as frequency spectrum graph 303 by processing both the acoustic data and the accelerometer data and may estimate the number of pills remaining.
An additional method of pill counting employs acoustic excitation, such as a buzzing sound, with the acoustic generator 146.
Pill Dispensing Detection
The present system may also detect when a medication dose has been dispensed. The present bottle system 100 includes multiple methods by which pill dispensing can be detected. The present system may, for example, detect pill dispensing using accelerometer 126. When the bottle is moved from a static position and tilted so that the pills are rolled and shifted to outside of the bottle, the accelerometer 126 detects such movement, and for example when excess of 90 degrees from vertical, such acceleration is strongly indicative of dispensing of a medication or pill. The present system checks if the cap is open using a magnetic sensor or Hall sensor 172 together with a Hall switch on the bottle. If the bottle is tilted more than a certain angle, such as more than 90 degrees from vertical, the system detects the tilt and a “pill dispense” event is marked.
Another embodiment for detecting a pill dispensing event is that of taking pills out of bottle use of a putting a finger inside the bottle and moving the pill out of the bottle. The detection mechanism here detects this scenario by checking the finger existence using capacitive sensing electrodes 120. Shown in
The accelerometer can also be used as a part of power wake up scheme. When the user moves the bottle, the accelerometer can detect the move and wake the electronics from a sleep state. The display plus one or more LEDs in the system and a sound generating component (such as piezo electric buzzer) may be used to generate feedback and also display the medication information as well as alerts and other relevant information.
Thus a smart medication bottle system is provided. The smart medication bottle system includes a bottle, a thread positioned on one end of the bottle, and a closed bottle base on the other end. The threading closes two walls of the bottle creating a double walled cavity between an external bottle wall and an internal bottle wall, threading onto the threaded end of the bottle, is a cap which has corresponding thread. Through the threading is the aperture of the bottle, allowing pills to be placed internally of the bottle. The double wall cavity houses the electronics, including all the sensors. The sensors are able to count the pills and can determine when a pill has been dispensed. On one side of the bottle there is placed a user interface display. This display will inform a patient regarding the bottle contents. The bottle is capable of full communication with a smartphone.
Further, according to the present design, there is provided an apparatus comprising a bottle portion comprising electronics including an accelerometer, an acoustic sensor, and a processor, the bottle portion configured to hold a quantity of pills, and a cap portion joinable to the bottle portion. The accelerometer and processor are configured to determine at least one of an acceleration of shaking of the bottle portion and cap portion, and a tilting of the bottle portion to a predetermined orientation evidencing removal of at least one pill from the bottle portion. The acoustic sensor, accelerometer, and processor are configured to determine a frequency spectrum of an acoustic signal obtained when the bottle portion and cap portion are shaken and determine an estimated quantity of pills based on the frequency spectrum.
According to another embodiment of the present design, there is provided a medication container bottle system comprising a bottle portion comprising a display and a processor and configured to receive and maintain a quantity of pills, and a cap portion joinable to the bottle portion, wherein the cap portion and bottle portion comprise at least two of (a) an accelerometer provided with the bottle portion, (b) an acoustic sensor provided with the bottle portion, (c) a magnet provided with the cap portion and a corresponding magnetic sensor provided with the bottle portion, (d) an optical transmitter/receiver and a corresponding optical reflector provided with the bottle portion, and (e) at least one capacitive sensing electrode provided proximate an opening on the bottle portion.
According to a further embodiment, there is provided a bottle system, comprising a bottle portion comprising electronics including a display, an accelerometer, an acoustic sensor, and a processor, the bottle portion configured to hold a quantity of pills, and a cap portion joinable to the bottle portion. The accelerometer and processor are configured to determine an acceleration of shaking of the bottle portion and cap portion with the quantity of pills contained therein, and further wherein the acoustic sensor, accelerometer, and processor are configured to determine a frequency spectrum of an acoustic signal obtained when the bottle portion and cap portion are shaken and determine an estimated quantity of pills based on the frequency spectrum.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the described embodiments are intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims. Furthermore, to the extent that the term “includes” is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term “comprising” as “comprising” is interpreted when employed as a transitional word in a claim.
This application claims the benefit of the earlier filed co-pending Provisional Patent Application Ser. No. 62/485,988, filed Apr. 16, 2017, the contents of which are incorporated herein by reference in the entirety.
Number | Date | Country | |
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62485988 | Apr 2017 | US |