Multiple cartridge dispensing system

• US 4,823,982 A
• Filed: 06/29/1987
• Issued: 04/25/1989
• Est. Priority Date: 04/11/1985
• Status: Expired due to Fees

• Current Assignee: American Microsystems Limited Incorporated (ON Semiconductor Corporation)
• Original Assignee: American Microsystems Limited Incorporated (ON Semiconductor Corporation)
• Inventors: Aten, Edward M., Parkhurst, Larry E.
• Primary Examiner(s): Huppert, Michael S.
• Application Number:
  US07/067,323
• Time in Patent Office: 666 Days
• Field of Search: 364/479, 221/3, 221/5, 221/15, 221/69-74, 221/129, 221/131, 221/133, 221/197, 221/263, 221/277, 206/531, 206/534.1, 206/539, 206/DIG. 820
• US Class Current: 221/3
• CPC Class Codes: A61J 7/04 Arrangements for time indication or reminder for taking medicine, e.g. programmed dispensers
• CPC Class Codes: A61J 7/0418 with electronic history memory
• CPC Class Codes: A61J 7/0436 resulting from removing a drug from, or opening, a container
• CPC Class Codes: A61J 7/0481 working on a schedule basis

Abstract

The invention provides a portable and positionally insensitive dispensing device and system for dispensing several types of articles, packaged on strips and loaded into separate cartridges, from a single device. Dispensing is controlled from more than one cartridge by means of special clutch mechanisms acting on a common drive shaft. The dispensing device has a control system that is capable of coordinating the dispensing operations of all the cartridge stations. A host computer system permits efficient definition of dispensing schedules and control options for each cartridge station, loads those dispensing parameters into the dispensing device control system, unloads dispensing data from the dispensing device at the end of a dispensing period, and analyzes the degree of compliance of the actual dispensing operations to the dispensing schedule.

Claims

1. A dispensing device, comprising:

multiple storage cartridges, each separable from a main housing, for storing a plurality of articles, of the same or different types, to be dispensed one at a time in predetermined order, said articles being supported along flexible strips stored in said cartridges;

means, separate from said storage cartridges, upon an actuation thereof, for independently dispensing articles from said storage cartridges and regardless of the positional orientation of said dispensing device;

means for supervising the dispensing of said articles including;

first memory means for storing basic dispensing operation instructions,

second memory means for storing a dispensing schedule and control instructions for each said cartridge, said schedule and control instructions being specific to the type of article being dispensed from a particular cartridge,

logic means for interpreting and executing said basic and specific dispensing instructions, and

time keeping means for providing time and data information;

power supply means for providing power to said logic means and to said time keeping means; and

a housing containing compartments for said storage cartridges, dispensing means, dispensing supervision means, and power supply means.

2. A device according to claim 1 further including means for inhibiting operation of said dispensing means other than at the times specified by said schedule.

3. A device according to claim 1 further including means for sensing and signalling to said logic means, each completed dispensing operation of said dispensing means.

4. A device according to claim 3 further including third memory means for storing data, said data including values indicative of a difference between an actual dispensing time and a scheduled dispensing time.

5. A device according to claim 4 further including communication means for transmitting said stored data from the device.

6. A device according to claim 1 further including means for alerting a user to scheduled dispensing times.

7. A device according to claim 6 wherein aid alerting means includes an audible alarm that uses said stored specific control instructions to determine the start and duration of an alert period.

8. A device according to claim 7 wherein said audible indicating means comprises an electro-mechanical buzzer.

9. A device according to claim 6 wherein said alerting means includes an alphanumeric visual indicator that uses said stored specific control instructions to determine the start, duration, and message of an alert period.

10. A device according to claim 9 wherein said visual indicating means comprises a liquid crystal display.

11. A device according to claim 1 wherein said separable storage cartridges have passageways having everywhere a width less than two article diameters.

12. A device according to claim 11 wherein said separable storage cartridges include a substantially `U` shaped partition defining passageways having everywhere a width less than two article diameters.

13. A device according to claim 1 wherein said dispensing means comprises:

ejector elements mounted for rotation about a longitudinal axis thereof and having article conforming depressions around their peripheries, said depressions being shaped so as to engage and convey individual articles arranged in said separable storage cartridge means in said predetermined order;

said ejector elements, when rotated through a predetermined angle, causing one article to be dispensed and the next article in sequence to be moved into a position ready to be dispensed upon the next rotation and inaccessible to the operator.

14. A device according to claim 13 wherein said ejector elements have substantially a circular cross-sectional form with semicircular depressions, for engaging cylindrical shaped articles, evenly spaced around the peripheries of said ejector elements.

15. A device according to claim 13 wherein said ejector elements include clutch mechanisms for the selective engagement of a particular ejector by a common drive shaft.

16. A device according to claim 15 wherein said clutch mechanisms include normally extended spring loaded pins mounted on an ejector, said pins, when depressed, engaging holes in a coaxially mounted drive shaft and causing the ejector to rotate with said drive shaft until said pins reach a point, at the completion of a dispensing cycle, where they may extend and disengage said common drive shaft.

17. A device according to claim 16 wherein said pins are depressed by a pushbutton shaft and held depressed for an appropriate degree of drive shaft rotation by a cam mounted adjacent to a hub on the ejector that holds the spring loaded pins.

18. A device according to claim 17 wherein the said cam also functions to prevent ejector reverse rotation or ejector overtravel by interfering with the extended pins.

19. A device according to claim 17 wherein said pushbutton shaft includes switch means for signalling when said pushbutton has been fully depressed and fully released.

20. A device according to claim 16 wherein said drive shaft is driven manually by a user.

21. A device according to claim 16 wherein said drive shaft is driven by a gear motor under control of said logic means.

22. A device according to claim 3 wherein said sensing and signalling means comprise a switch operated by a cam on said drive shaft.

23. A device according to claim 1 wherein said article holding flexible strips ar adapted so that they can be folded into said separable storage cartridges back and forth across passageways thereof such that the articles may be closest packed.

24. A device according to claim 1 further comprising communicating means for receiving said dispensing schedule and specific dispensing instructions from a separate computer.

25. A device according to claim 1 wherein said power supply means includes a rechargeable battery.

26. A device according to claim 1 wherein said power supply means includes a connector for coupling to an external power source.

27. A device according to claim 1 wherein said housing includes a locking mechanism for preventing unauthorized access to the articles and mechanisms stored within said housing.

28. A device according to claim 27 wherein said locking mechanism comprises a solenoid controlled by said logic means.

29. A device according to claim 1 wherein said dispensing supervision means allows coordinated dispensing from the several storage cartridges such that the dispensing operations of any particular cartridge may be at least partially governed by dispensing operations of one more of the other storage cartridges.

30. A device according to claim 1 wherein said dispensing supervision means is adaptive to actual dispensing operations such that present or future dispensing decisions may be based upon actual past dispensing operations.

31. A device according to claim 1 further comprising means for providing data indicative of dispensing operations from which compliance scores can be determined.

32. A dispensing system comprising:

one or more dispensing devices, each dispensing device including

multiple storage cartridges, each separable from a main housing, for storing a plurality of articles, of the same or different types, to be dispensed one at a time in predetermined order, said articles being supported along flexible strips stored in said cartridges;

means, separate from said storage cartridges, upon an actuation thereof, for independently dispensing articles from said storage cartridges and regardless of the positional orientation of said dispensing device;

dispensing supervision means including;

first memory means for storing basic dispensing operation instructions;

second memory means for storing dispensing schedule and control instructions for each said cartridge, said schedule and control instructions being specific to the type of article being dispensed from a particular cartridge;

logic means for interpreting and executing said basic and specific dispensing instructions;

time keeping means for providing time and data information;

means for communicating data to and from said dispensing device;

power supply means for providing power to said logic means, time keeping means and communicating means;

a housing containing compartments for said storage cartridges, dispensing means, dispensing supervision means, and power supply means; and

a host computer system for transmitting dispensing schedules and instructions to said dispensing devices, and receiving dispensing operations data from said dispensing devices.

33. A system according to claim 32 wherein said dispensing devices further includes means for inhibiting operation of said dispensing means other than at the times specified by said schedule.

34. A system according to claim 32 wherein said host computer system is arranged to produce a compliance report based on information from said dispensing devices as to various levels of compliance with said dispensing schedules.

35. A system according to claim 32 wherein said dispensing devices further include means for sensing and signalling for said logic means, each completed dispensing operation of said dispensing means.

36. A system according to claim 35 wherein said dispensing devices further include third memory means for storing data, said data including values indicative of a difference between actual dispensing times and said dispensing schedules.

37. A system according to claim 32 wherein said dispensing devices further include means for alerting a user to scheduled dispensing times.

38. A system according to claim 37 wherein said alerting means includes an audible alarm that uses said stored specific control instructions to determine the start and duration of an alert period.

39. A system according to claim 38 wherein said audible indicating means comprises an electro-mechanical buzzer.

40. A system according to claim 37 wherein said alerting means includes an alphanumeric visual indicator that uses said stored specific control instructions to determine the start, duration, and message of an alert period.

41. A system according to claim 40 wherein said visual indicating means comprises a liquid crystal display.

42. A system according to claim 32 wherein said separable storage cartridges have passageways having everywhere a width less than two article diameters.

43. A system according to claim 42 wherein said separable storage cartridges include a substantially `U` shaped partition defining passageways having everywhere a width less than two article diameters.

44. A system according to claim 32 wherein said dispensing means comprises:

ejector elements mounted for rotation about a longitudinal axis thereof and having article conforming depressions around their peripheries, said depressions being shaped so as to engage and convey individual articles arranged in said separable storage cartridge means in said predetermined order;

said ejector elements, when rotated through a predetermined angle, causing one article to be dispensed and the next article in sequence to be moved into a position ready to be dispensed upon the next rotation and inaccessible to the operator.

45. A system according to claim 44 wherein said ejector elements have substantially a circular cross-sectional form with semicircular depressions, for engaging cylindrical shaped articles, evenly spaced around the peripheries of said ejector elements.

46. A system according to claim 44 wherein said ejector elements include clutch mechanisms for the selective engagement of a particular ejector by a common drive shaft.

47. A system according to claim 46 wherein said clutch mechanisms include normally extended spring loaded pins mounted on an ejector, said pins, when depressed, engaging holes in a coaxially mounted drive shaft and causing the ejector to rotate with said drive shaft until said pins reach a point, at the completion of a dispensing cycle, where they may extend and disengage said common drive shaft.

48. A system according to claim 47 wherein said pins are depressed by a pushbutton shaft and held depressed for an appropriate degree of drive shaft rotation by a cam mounted adjacent to a hub on the ejector that holds the spring loaded pins.

49. A system according to claim 48 wherein the said cam also functions to prevent ejector reverse rotation or ejector overtravel by interfering with the extended pins.

50. A system according to claim 48 wherein said pushbutton shaft includes switch means that signal when said pushbutton has been fully depressed and fully released.

51. A system according to claim 47 wherein said drive shaft is driven manually by a user.

52. A system according to claim 47 wherein said drive shaft is driven by a gear motor under said logic means control.

53. A system according to claim 35 wherein said sensing and signalling means comprise a switch operated by a cam on said drive shaft.

54. A system according to claim 32 wherein said article holding flexible strips are adapted so that they can be folded into said separable storage cartridges back and forth across passageways thereof such that the articles may be closest packed.

55. A system according to claim 32 wherein said communicating means may receive said dispensing schedules and specific dispensing instructions from a separate computer.

56. A system according to claim 36 wherein said communication means may transmit said stored data from the dispensing device to a separate computer.

57. A system according to claim 32 wherein said power supply means includes a rechargeable battery.

58. A system according to claim 32 wherein said power supply means includes a connector for coupling to an external power source.

59. A system according to claim 32 wherein said housing includes a locking mechanism for preventing unauthorized access to the articles and mechanisms stored within said housing.

60. A system according to claim 59 wherein said locking mechanism comprises a solenoid controlled by said logic means.

61. A system according to claim 32 wherein said dispensing supervision means allows coordinated dispensing from said several storage cartridges such that the dispensing operations of any particular cartridge may be at least partially controlled by dispensing operations of one or more of the other said storage cartridges.

62. A system according to claim 32 wherein said dispensing supervision means is adaptive to actual dispensing operations such that present or future dispensing decisions may be based upon actual past dispensing operations.

63. A system according to claim 32 wherein said host computer system includes software for guiding a user in inputting said dispensing schedule and instructions for each said cartridge of a said dispensing device by means of keyboard entry of selections offered on one or more video screens generated by said computer program.

64. A system according to claim 63 which further includes a bar code reader connected to said host system computer whereby the contents of said cartridges can be identified by scanning a bar code label on the cartridge.

65. A system according to claim 63 in which said software may color code portions of said video screens in order to improve data entry efficiency and accuracy.

66. A system according to claim 63 in which said software may cause some portions of said video screens to flash in order to help insure that a user'"'"'s attention is brought to said portion of said video screens.

67. A system according to claim 63 in which said software may store a record of said loading operation in a memory device that is a part of said host computer system.

68. A system according to claim 63 in which said software may print a record of said loading operation on a printer device that is a part of said host computer system.

69. A system according to claim 63 wherein said software converts said dispensing schedule and instructions into a form that is directly usable by said dispensing devices without further conversion.

70. A system according to claim 32 wherein the host computer system includes software for verifying the proper operation of said dispensing devices.

71. A system according to claim 32 wherein the host computer system includes software for guiding a user in retrieving and analyzing said dispensing operations data from said dispensing devices.

72. A system according to claim 71 wherein said software converts dispensing time error data received from said dispensing devices into dispensing time of day and date information.

73. A system according to claim 71 wherein said software computes and displays values which measure levels of compliance between scheduled dispensing times and actual dispensing times.

74. A system according to claim 73 wherein said software may color code said displayed values in order to improve user awareness and understanding.

75. A system according to claim 73 wherein said software may flash some of said values in order to help insure that a user'"'"'s attention will be brought to said flashing values.

76. A system according to claim 73 in which said software may store a record of said values and other dispensing data in a memory device that is a part of said host computer system.

77. A system according to claim 73 in which said software may print a record of said values and other dispensing data on a printer device that is a part of said host computer system.

78. A system according to claim 73 wherein one measure of compliance is calculated as a ratio of the number of articles actually dispensed to the number of articles scheduled to be dispensed in the same time period.

79. A system according to claim 73 wherein one measure of compliance is calculated by counting the number of dispensing intervals when said articles are not properly dispensed and by weighting said calculation with factors that take into account how much in error are the said dispensing intervals.

80. A system according to claim 34 wherein said compliance report includes a cumulative compliance score.

81. A system according to claim 34 wherein said compliance report includes a daily compliance score.

82. A system according to claim 34 wherein said compliance report includes an overall compliance score.

83. A system according to claim 34 wherein said compliance report includes an overuse score.

84. A system according to claim 34 wherein said compliance report includes an under use score.

85. A system according to claim 34 wherein said compliance report includes a mean actual dosing interval and standard deviation.