Automated article dispensation mechanism

• US 20100268376A1
• Filed: 04/06/2010
• Published: 10/21/2010
• Est. Priority Date: 07/07/2004
• Status: Active Grant

• Current Assignee: Rxmedic Systems Inc
• Original Assignee: Rxmedic Systems Inc
• Inventors: Janet, Jason A., Reinfeld, David
• Granted Patent: US 8,091,733 B2
• Time in Patent Office: Days
• US Class Current: 700/231
• CPC Class Codes: A61J 7/02 Pill counting devices
• CPC Class Codes: G07F 11/1657 the picking arrangements using suction
• CPC Class Codes: G07F 11/44 in which magazines the articles are stored in bulk
• CPC Class Codes: G07F 17/0092 for assembling and dispensing of pharmaceutical articles medical dispensers for private use, A61J7/00

Abstract

Disclosed is a system for collecting, sorting, counting and consolidating an unorganized pool of solid or semi-solid articles such as pills for dispensation. Specifically, the articles are extracted from inside a bin using attraction points on a transport substrate and sorted into containers in finite quantities. The system consists of several components, preferably including a torque source, a counter and a vacuum source, which are uniquely integrated onto a single end-effector to reduce cost and redundancy by servicing several bins. Further, the system presents a method of attracting and carrying pills using negative vacuum pressure, gravity and centrifugal force. This centrifugal force holds articles to the local attraction points and is provided by the spinning of the transport substrate. Pills are collected from the bin or plenum at the local attraction points, counted, cleaved from the local attraction points and guided to a container or vial.

Claims

1. An apparatus for collecting and dispensing articles, said apparatus comprising:

an article transport substrate having a plurality of apertures;

a vacuum source for creating a negative pressure through said apertures; and

a torque source for rotating said article transport substrate;

wherein each article is collected or dispensed by said apparatus,

wherein a gravity vector assists said articles to achieve an association with said apertures,

wherein centrifugal force assists said articles maintaining said association with said apertures,

wherein said article transport substrate is rotatable and comprises a hollow circular shell for conveying said articles,

wherein said hollow circular shell comprises a first end and a second end,

wherein said hollow shell comprises an internal transporting surface which extends upwardly and inwardly from said first end to a midpoint in said hollow circular shell, and which extends upwardly and inwardly from said second end to said midpoint in said hollow circular shell, and

wherein at said midpoint is positioned said plurality of apertures, and wherein said internal transporting surface being perpendicular to a gravity vector.

2. The apparatus of claim 1, further comprising a housing or bin, wherein said housing or bin has a downward sloping bottom surface, and wherein said article transport substrate is within said housing or bin.

3. The apparatus of claim 2, wherein at each of said aperture, said torque source creates a centrifugal force perpendicular to said internal transporting surface which extends away from said midpoint of said hollow circular shell and is aligned in a direction parallel to a force being applied by said vacuum source on said apertures for assisting said vacuum source to facilitate an adherence of said article to said aperture, or to facilitate an adherence of said article to said internal transporting surface near or in the vicinity of said aperture, of said plurality of apertures, and

further wherein said article is transported from said bin in a direction of travel towards a dispensing route.

4. The apparatus of claim 1, wherein said torque source comprises a motor or crank, and wherein said motor or crank can vary speed, position or direction.

5. The apparatus of claim 1, further comprising a means for ejecting misplaced articles.

6. The apparatus of claim 5, wherein said means for ejecting misplaced articles is selected from the group consisting of a brush, gravity, a mechanical filter, uneven surface contours and a cross-flow air flow.

7. The apparatus of claim 6, wherein said cross-flow air flow is created by said vacuum source.

8. The apparatus of claim 5, wherein said means for ejecting misplaced articles selects said article based on one of a geometry, a type or a size.

9. The apparatus of claim 1, further comprising means for separating said article from said article transport substrate.

10. The apparatus of claim 9, wherein said means for separating said article is selected from the group consisting of a vacuum neutralizing plate, and a shear plate, wherein said vacuum neutralizing plate further increases said negative pressure through said apertures.

11. The apparatus of claim 1, wherein said article transport substrate is selected from the group consisting of nested bowls, a hollow ring, and a hollow cylindrical shape.

12. The apparatus of claim 1, further comprising a channel for dispensing said articles.

13. The apparatus of claim 1, further comprising a controller for controlling said article transport substrate, for controlling said vacuum source and for controlling said torque source.

14. The apparatus of claim 13, wherein said controller utilizes a closed loop control feedback mechanism to selectively control the speed or direction of said torque source or the pressure of said vacuum source.

15. The apparatus of claim 14, wherein said controller operates according to manual input and feedback from at least one sensor.

16. The apparatus of claim 14, wherein said controller transmits information to and receives information from a user-interface.

17. The apparatus of claim 1, further comprising means for returning excess articles to said apparatus.

18. The apparatus of claim 17, wherein said means for returning excess articles comprises an air flow created by said vacuum source.

19. The apparatus of claim 18, wherein said means for returning excess articles comprises a gate.

20. The apparatus of claim 15, wherein each of said vacuum source, said torque source, at least one sensor, and a controller are integrated onto an end-effector.

21. The apparatus of claim 20, wherein said end-effector is independent of said housing or bin.

22. The apparatus of claim 15, wherein said at least one sensor detects said articles.

23. The apparatus of claim 1, further comprising a focused air source to aid in article singulation.