Pill counting and control system for a pill transport apparatus

• US 20110231010A1
• Filed: 03/20/2010
• Published: 09/22/2011
• Est. Priority Date: 03/20/2010
• Status: Abandoned Application

• Current Assignee: Pcas Patient Care Automation Services Inc.
• Original Assignee: Pcas Patient Care Automation Services Inc.
• Inventors: Bessette, Derek, Panetta, Richard
• Application Number:
  US12/728,204
• Publication Number:
  US 20110231010A1
• Time in Patent Office: Days
• US Class Current: 700/236
• CPC Class Codes: B65B 57/20 Applications of counting devices for controlling the feed of articles other applications B65B65/08
• CPC Class Codes: G06M 7/00 Counting of objects carried by a conveyor

Abstract

The present invention provides a method and apparatus for dispensing varying quantities of pills quickly, conveniently, securely, accurately operable to incorporate one or more sensors and at least two data sets for the purpose of monitoring the activity of transferring pills from a pill singulation to a bottle. For example, a counting means may be operable, in real-time or near-real time, to count the pills transferred to a bottle. A sensor array data-acquisition means may be utilized to facilitate the collection and monitoring of data relating to transfer of pills to a bottle. The counting means and sensor array data-acquisition means may be applied in a cooperative manner so as to facilitate examinations for the purpose of identifying pill events, such as overlapping pill dispensing, that have the potential to invalidate the counting means results.

Claims

1. A method for counting items moving as a closely arranged series thereof, the method comprising directing the items of the closely arranged series past at least one sensor to generate a sequence of energy pulses corresponding to the passage of successive ones of the items past the at least one sensor, analyzing the sequence of pulses to generate a first count, deriving pulse width data from the sequence of pulses, comparing the pulse width data against reference data related to prior valid counts of other items to derive a second count, and determining a valid count exists if the first count matches the second count.

2. A method for the delivery of individually prescribed amounts of one or more pill medicaments from a pill dispenser comprising of the steps of:

a. receiving input by the pill dispenser regarding desired pill types and quantities;

b. allowing a control system to determine logic requirements for the dispensing of pills;

c. delivering of pills to a pill singulator, comprising of;

i. a tray for supporting pills;

ii. a drive means that is operable to move the pills in a stream that is of one pill in width; and

iii. a guide to guide to establish spacing between the driven pills and to guide the driven pills into a container;

d. counting the number of pills being driven into the container by gathering sensor data from at least one sensor disposed adjacent to the opening of the container, and analyzing such sensor data so as to establish a primary pill count and a secondary validated pill count derived from the pill count; and

e. authorizing dispensing of the one or more pills to the user if the analysis of the sensor data generates a successful comparison result between the desired pill quantity and the primary pill count and the secondary validated pill count.

3. The method of claim 2, wherein the counting of the number of pills includes incrementing a series of sensor transitions acquired from the at least one sensor.

4. The method of claim 2, comprising the further steps of providing the sensor transitions to a memory store or data array and thereby defining the primary pill count.

5. The method of claim 4, comprising the further steps of relating the primary pill count to a timeline for a pill dispense, and generating time-gap data for the pill dispense based on the time-gap between any two consecutive pills being driven to the opening of the container.

6. The method of claim 5, comprising the further step of feeding back the time-gap data to the control system in real time or near real time to enable the control of the operation of the pill singulator to reduce pill counting errors or other pill driving operational errors.

7. The method of claim 6, comprising validating the primary pill count by capturing secondary sensor data, and analyzing the primary pill count based on such analysis.

8. The method of claim 7, comprising analyzing the secondary sensor data based on a statistical analysis thereof.

9. The method of claim 8, comprising accessing one or more of a plurality of logical functions that embody or form part of a decision tree, for directing the application of the statistical analysis to the particular primary pill count and secondary sensor data.

10. The method of claim 9, comprising the step of feeding the results of the statistical analysis to the control system.

11. The method of claim 10, comprising the step of escalating the results of the statistical analysis by operation of the control system, such escalation including one or more of (i) engaging a pharmacist, (ii) engaging a tertiary pill counting apparatus or method for validating the secondary sensor data, (iii) mandating a recount for the dispense, or (iv) requiring corrective action for the pill dispenser.

12. A system for counting items, the system comprising a drive to move the items as a closely arranged series, at least one sensor to detect passage of the items past the at least one sensor and for generating a sequence of energy pulses corresponding to the passage of successive ones of the items past the at least one sensor, an analysis module to analyze the sequence of pulses to generate a first count, to derive pulse width data from the sequence of pulses, to compare the pulse width data against reference data related to prior valid counts of other items to derive a second count, and to determine a valid count exists if the first count matches the second count.

13. A system for the delivery of individually prescribed amounts of one or more pill medicaments from a pill dispenser comprising:

a. a pill singulator, comprising of;

i. a tray for supporting pills;

ii. a drive means that is operable to move the pills in a stream that is of one pill in width; and

iii. a guide to guide the driven pills towards a pill receiving station and to establish spacing between the driven pills;

and being operable to transfer the pills to a pill container;

b. a control system linked to the pill singulator for controlling the driving of pills by the pill singulator, including controlling the starting and stopping of the pill singulator, and the speed of the driving of pills by the pill singulator, and for determining the logic requirements for the dispensing of pills, including based on desired pill types and quantities; and

c. a counting system linked to the control system, for counting the number of pills being driven into the container by gathering sensor data from at least one sensor disposed adjacent to the opening of the container, and analyzing such sensor data so as to establish a primary pill count and a secondary validated pill count derived from the primary pill count;

wherein the control system authorizes the dispensing of the one or more pills to the user if the analysis of the sensor data generates a successful comparison result between the desired pill quantity and the primary pill count and the secondary validated pill count.

14. The system of claim 13, wherein the counting system is operable to generate the primary pill count by incrementing a series of sensor transitions acquired from the at least one sensor.

15. The system of claim 14, wherein the counting system is operable to provide the sensor transitions to a memory store or data array and thereby defining the primary pill count.

16. The system of claim 15, wherein the counting system is operable to relate the primary pill count to a timeline for a pill dispense, and generate time-gap data for the pill dispense based on the time-gap between any two consecutive pills being driven to the opening of the container.

17. The system of claim 16, wherein the counting system is further operable to feed back the time-gap data to the control system in real time or near real time to enable the control of the operation of the pill singulator to reduce pill counting errors or other pill driving operational errors.

18. The system of claim 13, wherein the counting system is further operable to validate the primary pill count by operation of a secondary pill counter.

19. The system of claim 18, wherein the counting system is operable to validate the primary pill count by capturing secondary sensor data, and analyzing the primary pill count based on such analysis.

20. The system of claim 19, wherein the counting system is operable to analyze the secondary sensor data based on a statistical analysis thereof.

21. The system of claim 20, wherein the counting system is operable to apply one or more of a plurality of logical functions that embody or form part of a decision tree, for directing the application of the statistical analysis to the particular primary pill count and secondary sensor data.

22. The system of claim 21, wherein the counting system feeds the results of the statistical analysis to the control system.

23. The method of claim 22, wherein the counting system is control system is operable to escalate the results of the statistical analysis, such escalation including one or more of (i) engaging a pharmacist, (ii) engaging a tertiary pill counting apparatus or method for validating the secondary sensor data, (iii) mandating a recount for the dispense, or (iv) requiring corrective action for the pill dispenser.