Medical waste sorting method

• US 7,617,113 B2
• Filed: 05/03/2006
• Issued: 11/10/2009
• Est. Priority Date: 09/19/2003
• Status: Active Grant

• Current Assignee: Carefusion 303 Incorporated (Becton, Dickinson & Co)
• Original Assignee: Vesta Medical LLC (Becton, Dickinson & Co)
• Inventors: Davidner, Alan A., Mallett, Scott R., Danta, Randall C., Corey, Alan D., Regla, Peter
• Primary Examiner(s): Weiss; John G.
• Assistant Examiner(s): Brooks; Matthew L.
• Application Number:
  US11/418,005
• Publication Number:
  US 20060218002A1
• Time in Patent Office: 1,287 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 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2050/0059 parallel to the lid plane
• CPC Class Codes: A61B 2050/006 perpendicular to the lid plane, e.g. by a downward movement
• CPC Class Codes: A61B 2050/185 Drawers
• CPC Class Codes: A61B 2090/0805 automatically, e.g. by means of magnetic, optical or photoelectric detectors
• 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 50/15 Mayo stands; Tables
• CPC Class Codes: A61B 50/18 Cupboards; Drawers therefor
• CPC Class Codes: A61B 50/36 for collecting or disposing of used articles
• CPC Class Codes: A61B 90/06 Measuring instruments not otherwise provided for
• CPC Class Codes: A61B 90/37 Surgical systems with images on a monitor during operation
• CPC Class Codes: A61B 90/98 using electromagnetic means, e.g. transponders
• 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: G01G 21/28 Frames, Housings
• CPC Class Codes: G01G 23/3735 using a digital network
• CPC Class Codes: G06Q 10/30 Administration of product recycling or disposal
• CPC Class Codes: G06Q 30/018 Certifying business or products
• CPC Class Codes: G06Q 40/08 Insurance
• 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: G16H 40/63 : for local operation
• CPC Class Codes: Y02W 90/00 : Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
• CPC Class Codes: Y10S 209/93 : Municipal solid waste sorting

Abstract

A system for disposing of medical waste is generally configured to sort waste items into a plurality of disposable containers according to applicable rules and regulations governing the handling and/or disposal of such items. In some embodiments, a system comprises sorting stations, each of which houses a number of disposable containers. Each station can identify an item of waste, determine the most appropriate container for the item, and facilitate disposal of the item in the appropriate container.

Claims

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

providing a plurality of container compartments, each container compartment configured to receive a removable container;

providing a plurality of removable containers, wherein each of said removable containers comprises an opening and a machine-readable identification key;

providing a movable lid associated with each of said removable containers,

wherein the removable containers are configured to be placed within the container compartments,

wherein each of the removable containers is associated with at least one of a plurality of waste categories,

wherein the movable lid is movable to an open position and a closed position; and

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;

wherein the electronic sorting system is configured to send an alert signal when a container is full so that said full container can be replaced;

reading, using a key reader, said machine readable identification key to indicate to the system the container type, wherein the container type defines a category of waste to be placed in the container;

providing a scanner for receiving barcode information from a waste item;

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

determining the appropriate container based on the waste category to which the scanned waste item is assigned and the container type, wherein the determining step is performed by the electronic sorting system;

identifying the appropriate container to a user by automatically moving the lid associated with said appropriate container to the open position to permit disposal of said waste item; and

automatically locking the movable lid in the closed position after receipt of the waste item.

2. The method of claim 1, further comprising automatically locking said full container prior to sending said alert signal, thereby restricting access to said full container.

3. The method of claim 1, wherein said alert signal is communicated to a technician or maintenance person.

4. The method of claim 1, wherein said alert signal is communicated to at least one of a pager, cell phone, PDA, or computer terminal.

5. The method of claim 1, further comprising indicating to a user that said full container is full and cannot accept any further waste items.

6. The method of claim 1, further comprising indicating to a user that said full container is full and directing the user to an alternate container.

7. The method of claim 1, further comprising indicating to a user that said full container is full and directing the user to an alternate sorting station, wherein said alternate sorting station is in electronic communication with said sorting system.

8. The method of claim 1, wherein the section that permits visualization comprises translucent or transparent material.

9. The method of claim 1, wherein the section that permits visualization comprises a viewing strip.

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

11. The method of claim 1, wherein said waste item classification information comprises rules and regulations affecting pharmaceutical waste disposal.

12. The method of claim 1, farther comprising the step of providing a user input device configured to acquire manually-entered information regarding said waste item or container.

13. The method of claim 12, wherein said input device comprises at least one of a touch screen or keyboard.

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

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

16. The method of claim 1, further comprising providing a timer to determine a replacement schedule for any one of said containers.

17. The method of claim 1, wherein at least one of said containers is reusable.

18. The method of claim 1, wherein at least one of said containers is configured to receive biohazard bags.

19. The method of claim 1, wherein at least one of said containers is configured to receive sharps.

20. The method of claim 1, further comprising color-coding the containers based on said waste categories.

21. The method of claim 1, further comprising generating a manifest for at least one of said containers.

22. The method of claim 1, further comprising electronically maintaining an electronic log of all identified waste items and the container to which each item was assigned.

23. The method of claim 22, further comprising auditing compliance with regulations based on said log.

24. The method of claim 22, further comprising audit usage or disposal of a waste item based on said log.

25. 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.