Dispensing having a compartment for detecting and counting the dispensed objects especially adapted for dispensing medication and method of using the same

• US 5,042,685 A
• Filed: 08/10/1989
• Issued: 08/27/1991
• Est. Priority Date: 08/10/1989
• Status: Expired due to Fees

• Current Assignee: Thomas S. Moulding Jr
• Original Assignee: Thomas S. Moulding Jr
• Inventors: Ellis, Donald G., Moulding, Thomas S. Jr.
• Primary Examiner(s): Bollinger, David H.
• Application Number:
  US07/392,273
• Time in Patent Office: 747 Days
• Field of Search: 221/1, 221/2, 221/3, 221/8, 221/9, 221/10, 221/12, 221/15, 221/21, 221/151-153, 221/185, 221/241, 221/263, 221/266, 368/10, 368/107-113, 340/309.15, 340/309.4, 364/569
• US Class Current: 221/1
• CPC Class Codes: A61J 2200/74 for weight
• CPC Class Codes: A61J 2205/70 Audible labels, e.g. for pre-recorded info or messages
• CPC Class Codes: A61J 7/02 Pill counting devices
• 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 7/0445 for preventing drug dispensing during a predetermined time period
• CPC Class Codes: G01G 19/42 for counting by weighing G01G19/387 takes precedence
• CPC Class Codes: G06V 20/66 Trinkets, e.g. shirt buttons or jewellery items recognising microscopic objects G06V20/69

Abstract

A medication dispenser that includes a receptacle having a counting compartment with a first opening into the receptacle and a second opening through which the pills are dispensed. To be dispensed, the pills must passthrough the counting compartment and are counted during such passage. Both openings are blocked or unblocked by logic built into or remotely connected to the dispenser, which logic determines whether the pills in the compartment should be dispensed. In one embodiment of the dispenser, the pills are counted by sensing the amount of light that is passed through the compartment. The logic counts the pills by subtracting the amount of light transmitted through the compartment when it contains pills from the amount of light transmitted through an empty compartment and comparing the result to the known size of the pills. In an alternative embodiment, the pills are weighed in the counted compartment and the weight is compared to the known weight of a single pill. In a second alternative embodiment, radiation emitted by the pills is counted with a radiation detector.

Claims

1. A process of dispensing a plurality of units of medication, said units being contained within the hollow interior of a receptacle having a compartment disposed between and in communication within the hollow receptacle interior and the receptacle exterior and having means for counting the number of medication units in said compartment, said process comprising the steps of:

maneuvering at least one medication unit from said hollow receptacle interior into said compartment;

preventing said at least one medication unit from passing from said compartment to the receptacle exterior as said at least one medication unit is being maneuvered from said hollow receptacle interior into said compartment;

counting the number of medication units in said compartment with said counting means;

preventing said at least one medication unit from passing between said compartment and the receptacle exterior as the number of medication units in said compartment is counted by said counting means;

permitting said at least one medication unit to pass from said compartment to the receptacle exterior after the number of medication units in said compartment has been counted by said counting means; and

preventing medication units from passing between the hollow receptacle interior and said compartment whenever said at least one medication unit is permitted to pass from said compartment to the receptacle exterior.

2. A process of dispensing a plurality of units of medication according to claim 1 wherein said at least one medication unit is permitted to pass from said compartment to the receptacle exterior only if the number of medication units in said compartment counted by said counting means is less than a predetermined number.

3. A process of dispensing a plurality of units of medication according to claim 1 wherein said at least one medication unit is permitted to pass from said compartment to the receptacle exterior only if the number of medication units in said compartment counted by said counting means is the same as a predetermined number.

4. A process of dispensing a plurality of units of medication according to claim 1 wherein the number of medication units is counted by weighing the total medication units in said compartment.

5. A process of dispensing a plurality of units of medication according to claim 1 wherein the number of medication units is counted by determining the weight of a single medication unit and then by weighing the total medication units in said compartment.

6. A process of dispensing a plurality of units of medication according to claim 1 wherein said step of counting the number of medication units includes the steps of shining light onto the medication units in said compartment and measuring the quantity of light.

7. A process of dispensing a plurality of units of medication according to claim 1 wherein the number of medication units is counted by transmitting light through said compartment and measuring the quantity of light transmitted when no medication units are in said compartment and then transmitting light through said compartment and measuring the quantity of light transmitted when said at least one medication unit is in said compartment.

8. A process of dispensing a plurality of units of medication according to claim 1 wherein the number of medication units is counted by transmitting light through said compartment and measuring the quantity of light transmitted when no medication units are in said compartment, transmitting light through said compartment and measuring the quantity of light transmitted when a single medication unit is in said compartment, and transmitting light through said compartment and measuring the quantity of light transmitted when said at least one medication unit is present in said compartment.

9. A process of dispensing a plurality of units of medication according to claim 1 wherein the number of medication units is counted by measuring the radioactivity of said at least one medication unit.

10. A process of dispensing a plurality of units of medication according to claim 1 comprising the further step of electronically recording the time substantially when said at least one medication unit passes from said compartment to the receptacle exterior.

11. A process of dispensing a plurality of units of medication according to claim 10 comprising the further step of electronically recording the number of said at least one medication units passing from said compartment to the receptacle exterior.

12. A process of dispensing a plurality of units of medication according to claim 1 comprising the further step of preventing medication units from passing from said compartment to the receptacle exterior if a person'"'"'s characteristics selected from the group consisting of pulse rate, blood pressure, and temperature are outside a predetermined range.

13. A process of dispensing a plurality of units of medication according to claim 1 comprising the further step of preventing medication units from passing from said compartment to the receptacle exterior if certain dispensing characteristics selected from the group consisting of the number of medication units dispensed within a previous time period are outside a predetermined range of numbers.

14. A process of dispensing a plurality of units of medication according to claim 1 comprising the further step of signalling an alarm whenever the number of medication units dispensed within a previous time period is less than a predetermined number.

15. A process of dispensing a plurality of units of medication according to claim 1 wherein said at least one medication unit is prevented from passing between said compartment and either the hollow receptacle interior or the receptacle exterior as the number of medication units in said compartment is counted by said counting means.

16. A process of dispensing a plurality of objects, said objects being contained within the hollow interior of a receptacle having a compartment disposed between and in communication with the hollow receptacle interior and the receptacle exterior and having means for counting the number of objects in said compartment, said process comprising the steps of:

maneuvering at least one object from said hollow receptacle interior into said compartment;

preventing said at least one object from passing from said compartment to the receptacle exterior as said at least one object is being maneuvered from said hollow receptacle interior into said compartment;

counting the number of objects in said compartment with said counting means;

preventing said at least one object from passing between said compartment and the receptacle exterior as the number of objects in said compartment is counted by said counting means;

permitting said at least one object to pass from said compartment to the receptacle exterior after the number of objects in said compartment has been counted by said counting means; and

preventing objects from passing between the hollow receptacle interior and said compartment whenever said at least one object is permitted to pass from said compartment to the receptacle exterior.

17. A process of dispensing a plurality of objects according to claim 16 wherein said at least one object is prevented from passing between said compartment and either the hollow receptacle interior or the receptacle exterior as the number of objects in said compartment is counted by said counting means.

18. A medication dispenser for counting medication units dispensed comprising:

a receptacle having a substantially hollow interior for storing a plurality of medication units to be dispensed;

a counting compartment having a substantially hollow interior for holding medication units during counting;

an internal opening between said receptacle and said counting compartment;

an external opening between said counting compartment and an exterior of the dispenser through which medication units are dispensed;

means for selectively communicating said internal opening with said hollow interior of said receptacle to allow passage of medication units into said counting compartment and for selectively communicating said external opening with the exterior of the dispenser to allow dispensing of medication units; and

counting means for counting medication units during passage through said counting compartment, said counting means including means for determining the magnitude of a uniform characteristic of medication units in said counting compartment and comparing the magnitude of said uniform characteristic with the magnitude of said uniform characteristic of a single medication unit.

19. The dispenser of claim 18, further comprising means for selectively varying the effective size of said counting compartment.

20. The dispenser of claim 18, further comprising means for selectively restricting the size of said counting compartment to accommodate no more than one medication unit.

21. The dispenser of claim 18, wherein said receptacle is of a dimension that allows medication units to be loosely arranged therein.

22. The dispenser of claim 18, wherein said counting compartment is of a dimension that allows a plurality of medication units to be loosely arranged therein.

23. The dispenser of claim 18, wherein said counting compartment comprises one or more transparent surfaces whereby medication units can be viewed during counting.

24. The dispenser of claim 18, further comprising confining means for confining medication units within said counting compartment during counting.

25. The dispenser of claim 24, wherein said confining means comprises:

means for selectively blocking and unblocking said internal opening; and

means for selectively blocking and unblocking said external opening.

26. The dispenser of claim 25, wherein said confining means includes preventing means for selectively preventing simultaneous unblocking of said internal opening and said external opening.

27. The dispenser of claim 26, further comprising position sensing means for sensing the position of said dispenser and wherein said preventing means prevents unblocking of said internal opening and said external opening in a predetermined position.

28. The dispenser of claim 25, further comprising electronic logic means for controlling said blocking and unblocking.

29. The dispenser of claim 28, wherein said electronic logic means further comprises:

receiving and storing means for receiving and storing dispensing criteria comprising;

an amount of medication units previously dispensed;

a time when a last dispensing occurred;

a time interval for regularly dispensing medication units; and

an amount of medication units to be dispensed at each interval; and

means operatively connected to and responsive to said receiving and storing means for unblocking said external opening when the number of medication units to be dispensed is no greater than the number to be dispensed within a time interval.

30. The dispenser of claim 29, wherein said dispensing criteria further comprises other criteria, such as a patient'"'"'s pulse rate, blood pressure, and temperature.

31. The dispenser of claim 29, further comprising:

audible indicating means for audibly indicating when medication units should be dispensed; and

means operationally connected to and responsive to said receiving and storing means for activating said audible indicating means when medication units are to be dispensed.

32. The dispenser of claim 29, further comprising:

display means for indicating a quantity of and time for medication dispensing; and

display means operationally connected to and responsive to said receiving and storing means for displaying the amount of medication units to be dispensed and when the medication units are to be dispensed.

33. The dispenser of claim 28, wherein said electronic logic means further comprises means for communicating with an external device.

34. The dispenser of claim 33, further comprising memory means for retaining the count obtained by said counting means and the time when said counting means performs the counting.

35. The dispenser of claim 18, wherein said uniform characteristic is weight.

36. The dispenser of claim 18, wherein said counting means includes means for shining light onto medication units in said counting compartment and means for measuring said light to detect the degree of shadowing created by the medication units, said uniform characteristic comprising said degree of shadowing.

37. The dispenser of claim 18, wherein said means for determining comprises:

light transmitting means for transmitting light through said counting compartment; and

measuring means for measuring the degree of transmission of light through said counting compartment.

38. The dispenser of claim 37, wherein said light transmitting means further comprises light determining means for determining the amount of light transmitted to said measuring means when no medication units are within said counting compartment.

39. The dispenser of claim 18, wherein said uniform characteristic is radioactivity.

40. The dispenser of claim 18, further comprising clock means for determining when said counting compartment performs the counting.

41. A dispenser for counting objects dispensed comprising:

a receptacle having a substantially hollow interior for storing a plurality of objects to be dispensed;

a counting compartment having a substantially hollow interior for holding objects during counting;

an internal opening between said receptacle and said counting compartment;

an eternal opening between said counting compartment and an exterior of the dispenser through which objects are dispensed;

means for selectively communicating said internal opening with said hollow interior of said receptacle to allow passage of objects into said counting compartment and for selectively communicating said external opening with the exterior of the dispenser to allow dispensing of objects; and

counting means for counting objects during passage through said counting compartment, said counting means including means for determining the magnitude of a uniform characteristic of objects in said counting compartment and comparing the magnitude of said uniform characteristic with the magnitude of said uniform characteristic of a single object.

42. The dispenser of claim 41, wherein said counting means includes means for shining light onto objects in said counting compartment and means for measuring said light to detect the degree of shadowing created by the objects, said uniform characteristic comprising said degree of shadowing.

43. The dispenser of claim 41, further comprising confining means for selectively confining objects during passage through said counting compartment whereby said objects are prevented from leaving said counting compartment.

44. The dispenser of claim 43, wherein said confining means includes means for selectively blocking and unblocking said internal opening and said external opening.

45. The dispenser of claim 41, wherein said uniform characteristic is the weight of the objects.

46. The dispenser of claim 41, wherein said uniform characteristic is the radioactivity of the objects.