Method of sorting waste utilizing removable liners

• US 7,664,656 B2
• Filed: 02/05/2008
• Issued: 02/16/2010
• Est. Priority Date: 09/19/2003
• Status: Active Grant

• Current Assignee: Carefusion 303 Incorporated (Becton, Dickinson & Co)
• Original Assignee: Alan A. Davidner, Alan D. Corey, Alec Huang, James R. Benson, John Wong, Peter Regla, Randall C. Danta
• Inventors: Davidner, Alan A., Mallett, Scott R., Benson, James R., Danta, Randall C., Corey, Alan D., Huang, Alec, Regla, Peter
• Primary Examiner(s): Weiss; John G.
• Assistant Examiner(s): Brooks; Matthew L.
• Application Number:
  US12/026,348
• Publication Number:
  US 20080197055A1
• Time in Patent Office: 742 Days
• Field of Search: 209583-930, 600/604, 607/2, 206366-370, 705 1- 2, 220/346, 340/572.1
• US Class Current: 705/1.1
• CPC Class Codes: A61B 2050/185 Drawers
• CPC Class Codes: A61B 50/10 Furniture specially adapted for surgical or diagnostic appliances or instruments
• CPC Class Codes: A61B 50/13 Trolleys, e.g. carts
• CPC Class Codes: A61B 50/36 for collecting or disposing of used articles
• CPC Class Codes: B07C 5/3412 according to a code applied to the object which indicates a property of the object, e.g. quality class, contents or incorrect indication sorting according to size measured by light-responsive means B07C5/10; sorting according to optical properties B07C5/342; for packages B65D79/02; for information carriers G06K7/00
• CPC Class Codes: B07C 7/005 Computer assisted manual sorting, e.g. for mail
• CPC Class Codes: G06Q 99/00 Subject matter not provided for in other groups of this subclass
• CPC Class Codes: G16H 40/20 for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass
• CPC Class Codes: Y10S 209/93 Municipal solid waste sorting

Abstract

Methods for using a liner in a waste sorting and disposal system are provided. The liner includes an internal space and an opening that provides access to that internal space. In some embodiments, the liner may also include a machine-readable identification key that is configured to identify a type of waste that the liner may receive. In some embodiments, the machine-readable key is optical, color-coded, alphanumeric or graphical. The liner can include one or more closure members to allow a user to securely seal the liner when it is removed from the container. In some embodiments, the liner can include a flange, lip, hook or other protrusion to secure its position relative to a container.

Claims

1. A method for sorting a plurality of medical waste items using an electronic sorting system, the method comprising:

providing an electronic control system;

providing a plurality of container compartments, each container compartment configured to receive at least one of a plurality of removable containers;

wherein each of said removable containers receives at least one of a plurality of liners,

wherein each of said removable containers and said liners comprise an opening, and

wherein each of said liners comprises a machine-readable identification key associated with at least one of a plurality of waste categories;

reading, via a key reader located within the sorting system, the machine-readable identification key on the liner to obtain information regarding the liner'"'"'s waste category type;

determining the category of waste to be placed in the liner within the container based on the information read by the key reader;

identifying the liner'"'"'s waste category type to the control system;

providing a movable lid adapted to cover each of said removable containers, wherein the movable lid is movable to an open position and a closed position,

receiving barcode information from a waste item via a scanner;

electronically assigning the scanned waste item to at least one waste category based at least in part on the information obtained from the scanner and a database comprising waste item classification information;

determining, via the control system, an appropriate container based on the waste category to which the scanned waste item is assigned and the liner type; and

identifying the appropriate container to a user by automatically moving the lid adapted to cover the appropriate container to the open position to permit disposal of said waste item, wherein the movable lid is configured to lock in the closed position after receipt of the waste item.

2. The method of claim 1, wherein the liners are disposable and the containers are reusable.

3. The method of claim 1, wherein the machine readable identification key comprises a radio frequency identification (RFID) tag and the key reader comprises an RFID reader.

4. The method of claim 1, wherein at least a portion of one or more of said lids comprises a section that permits visualization of the fill level of the liner within the container associated with said lid.

5. The method of claim 4, wherein the section that permits visualization comprises a translucent or transparent material.

6. The method of claim 4, wherein the section that permits visualization comprises a viewing strip.

7. The method of claim 1, wherein said waste item classification information comprises classification information based on environmental or drug enforcement regulations.

8. The method of claim 1, further comprising providing an input device to receive manually-entered information regarding said waste item or liner.

9. The method of claim 8, wherein said input device comprises at least one of a touch screen or keyboard.

10. The method of claim 1, wherein the scanner is handheld.

11. The method of claim 1, wherein at least one of said moveable lids is configured to be manually closed.

12. The method of claim 1, wherein at least one of said liners comprises a sealing member to seal the opening of the liner to facilitate disposal.

13. The method of claim 1, wherein at least one of said liners comprises polypropylene and has a thickness of about 2 to 6 millimeters.

14. The method of claim 1, wherein at least one of said liners comprises a polymeric material.

15. The method of claim 1, wherein at least one of said liners comprises a flexible material.

16. The method of claim 1, wherein at least one of said liners comprises serialization to permit tracking of the liner.

17. The method of claim 1, further comprising electronically generating a manifest for at least one of said liners.

18. The method of claim 1, further comprising electronically maintaining an electronic log of the identified waste items and the liner to which each of said waste items was disposed.

19. The method of claim 1, further comprising generating an alert signal when one of said liners is full so that said full liner can be replaced.

20. The method of claim 1, further comprising detecting a fill level of at least one of the liners using a sensor.

21. The method of claim 1, further comprising alerting a user if at least one of the liners is absent or improperly properly placed within the container.

22. A method for sorting a plurality of medical waste items using an electronic sorting system, the method comprising:

providing an electronic control system;

providing a plurality of container compartments, each container compartment configured to receive at least one of a plurality of removable containers;

wherein each of said removable containers comprises an outer enclosure and an inner liner

wherein each of said containers comprises an opening;

wherein each of said containers comprises a machine-readable identification key associated with at least one of a plurality of waste categories;

reading, via a key reader located within the sorting system, the machine-readable identification key on the container to obtain information regarding the container'"'"'s waste category type;

determining the category of waste to be placed within the container based on the information read by the key reader;

identifying the container'"'"'s waste category type to the control system;

providing a movable lid adapted to cover each of said removable containers, wherein the movable lid is movable to an open position and a closed position,

receiving barcode information from a waste item via an input device;

electronically assigning the scanned waste item to at least one waste category based at least in part on the information obtained from the scanner and a database comprising waste item classification information;

determining, via the control system, an appropriate container based on the waste category to which the scanned waste item is assigned and the container type; and

identifying the appropriate container to a user by automatically moving the lid adapted to cover the appropriate container to the open position to permit disposal of said waste item, wherein the movable lid is configured to lock in the closed position after receipt of the waste item.

23. The method of claim 22, wherein said machine-readable identification key is located on said inner liner.

24. The method of claim 22, wherein said input device comprises a barcode scanner for receiving barcode information from said waste item.

25. The method of claim 22, wherein said inner liner is disposable and the outer enclosure is reusable.

26. The method of claim 22, wherein the machine readable identification key comprises a radio frequency identification (RFID) tag and the key reader comprises an RFID reader.

27. The method of claim 22, wherein at least a portion of one or more of said lids comprises a section that permits visualization of the fill level of the container associated with said lid.

28. The method of claim 27, wherein the section that permits visualization comprises a translucent or transparent material.

29. The method of claim 27, wherein the section that permits visualization comprises a viewing strip.

30. The method of claim 22, wherein said waste item classification information comprises classification information based on environmental or drug enforcement regulations.

31. The method of claim 22, further comprising receiving, via said input device, manually-entered information regarding said waste item or liner.

32. The method of claim 22, wherein said input device comprises at least one of a touch screen or keyboard.

33. The method of claim 22, wherein said input device comprises a handheld scanner.

34. The method of claim 22, wherein at least one of said moveable lids is configured to be manually closed.

35. The method of claim 22, wherein said inner liner comprises a sealing member to seal the opening of the liner to facilitate disposal.

36. The method of claim 22, wherein said inner liner comprises polypropylene and has a thickness of about 2 to 6 millimeters.

37. The method of claim 22, wherein said inner liner comprises a polymeric material.

38. The method of claim 22, wherein said inner liner comprises a flexible material.

39. The method of claim 22, wherein said inner liner comprises serialization to permit tracking of the liner.

40. The method of claim 22, further comprising generating a manifest to identify a contents of said inner liner.

41. The method of claim 22, further comprising electronically maintaining an electronic log of the identified waste items and the inner liner to which each of said waste items was disposed.

42. The method of claim 22, further comprising sending an alert signal when said inner liner is full so that said full liner can be replaced.

43. The method of claim 22, further comprising detecting a fill level of said inner liner using a sensor.