Automated article dispensation mechanism

• US 7,726,514 B2
• Filed: 07/07/2004
• Issued: 06/01/2010
• Est. Priority Date: 07/07/2004
• Status: Expired due to Fees

• Current Assignee: Rxmedic Systems Inc
• Original Assignee: Rxmedic Systems Inc
• Inventors: Reinfeld, David, Janet, Jason A.
• Primary Examiner(s): Crawford; Gene O.
• Assistant Examiner(s): Kumar; Rakesh
• Application Number:
  US10/886,494
• Publication Number:
  US 20060006190A1
• Time in Patent Office: 2,155 Days
• Field of Search: 221/9, 221/13, 221/195, 221/196, 221/200, 221/202, 221/203, 221/207, 221/254, 221/258, 221/263, 221/266, 221/277, 221/298
• US Class Current: 221/221
• 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 automated system for collecting and dispensing articles, comprising:

a plurality of dispensing units, wherein each of said plurality of dispensing units further comprises a bin, rotatable article transport substrate comprising a hollow circular shell for conveying said articles, wherein said hollow circular shell having a first end and a second end, wherein said hollow shell includes 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 a plurality of apertures, and wherein said internal transporting surface being parallel to a gravity vector;

a sensor, a filter, a separator, and a dispensing route, wherein each aperture of said plurality of apertures facilitates transportation of an article of said articles of said dispensing bin in a direction towards said dispensing route;

an end-effector; and

a controller for controlling said article transport substrate, said sensor, a vacuum source, and a torque source;

wherein said torque source is integrated onto said end-effector; and

wherein at each of said apertures, 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 said dispensing route; and

wherein said end-effector is movable to interface with each of said plurality of dispensing units to receive a predetermined number of said articles.

2. A system according to claim 1, wherein said article transport substrate is selected from the group consisting of nested bowls, a hollow ring, and a hollow cylindrical shape.

3. A system according to claim 1, wherein said bin has a downward sloping bottom surface.

4. A system according to claim 1, wherein said torque source comprises a motor or crank;

wherein said motor or crank can vary speed, position, and direction.

5. A system according to claim 1, wherein said filter is at least one selected from the group consisting of a brush, gravity, a mechanical filter, uneven surface contours, and a cross-flow air flow.

6. A system according to claim 5, wherein said cross-flow air flow is created by said vacuum source.

7. A system according to claim 1, wherein said dispensing route comprises a gravity driven channel.

8. A system according to claim 1, wherein said articles are accelerated on said dispensing route by said vacuum source.

9. A system according to claim 1, wherein said separator is at least one selected from the group consisting of a vacuum neutralizing plate, and a shear plate;

wherein said vacuum neutralizing plate further increases the negative pressure from said vacuum source through said apertures.

10. A system according to claim 1, 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.

11. A system according to claim 1, wherein said controller operates according to manual input and feedback from said sensor.

12. A system according to claim 1, wherein said controller transmits information to and receives information from a user-interface.

13. A system according to claim 1, further comprising means for returning excess articles to said dispensing unit.

14. A system according to claim 13, wherein said means is an air flow created by said vacuum source.

15. A system according to claim 14, wherein said means further comprises a gate.

16. A system according to claim 1, wherein said filter allows a predetermined amount of articles to be associated with said apertures.

17. A system according to claim 1, wherein said filter filters said articles based on number, type or size.

18. A system according to claim 1, wherein said end-effector is independent of said dispensing units.

19. A system according to claim 1, wherein said vacuum source, said sensor and said controller are integrated onto said end-effector.

20. The automated system of claim 1, wherein said end-effector includes said vacuum source.

21. An automated system for collecting and dispensing articles, comprising:

a dispensing unit, wherein said dispensing unit includes a bin, a rotatable article transport substrate comprising a hollow circular shell for conveying said articles, wherein said hollow circular shell having a first end and a second end, wherein said hollow shell includes 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 a plurality of apertures, and wherein said internal transporting surface being parallel to a gravity vector, a sensor, a filter, a separator, and a dispensing route, wherein each aperture of said plurality of apertures facilitates transportation of an article of said articles of said dispensing bin in a direction towards said dispensing route;

an end-effector; and

a controller for controlling said article transport substrate, said sensor, a vacuum source, and a torque source;

wherein said torque source is integrated onto said end- effector; and

wherein at each of said apertures, said torque source creates a centrifugal force perpendicular to said internal transporting surface that assists 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 said dispensing route; and

wherein said end-effector is movable to interface with said dispensing unit to receive a predetermined number of said articles.

22. The automated system of claim 21, wherein said end-effector includes said vacuum source.