Systems and methods for tracking pharmaceuticals within a facility

• US 6,935,560 B2
• Filed: 02/26/2002
• Issued: 08/30/2005
• Est. Priority Date: 02/26/2002
• Status: Expired due to Term

• Current Assignee: Meps Real-Time, Inc.
• Original Assignee: Safety Syringes Incorporated (Becton, Dickinson & Co)
• Inventors: Caputo, Jimmy C., Andreasson, Christer O.
• Primary Examiner(s): FUREMAN, JARED
• Application Number:
  US10/085,472
• Publication Number:
  US 20030164401A1
• Time in Patent Office: 1,281 Days
• Field of Search: 235/385, 235/383, 235/381, 235/382, 235/382.5, 235/375, 340/568.1, 340/573.1, 340/572.1, 340/5.9, 340/5.92, 621/25, 700/231, 700/236, 700/237, 232/43.1, 705/28, 705/29
• US Class Current: 235/385
• CPC Class Codes: A61J 2205/30 Printed labels
• CPC Class Codes: A61J 2205/60 using magnetic or electronic identifications, e.g. chips, RFID, electronic tags
• CPC Class Codes: A61J 7/0084 for multiple medicaments
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 10/08 Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders
• CPC Class Codes: G07F 17/0092 for assembling and dispensing of pharmaceutical articles medical dispensers for private use, A61J7/00
• CPC Class Codes: G07F 9/002 Vending machines being part of a centrally controlled network of vending machines
• CPC Class Codes: G07G 1/0045 with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader
• CPC Class Codes: G07G 1/009 the reader being an RFID reader
• CPC Class Codes: G16H 20/13 delivered from dispensers
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• 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 40/40 for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades

Abstract

A medication-dispensing unit is provided for tracking medical products having a Radio Frequency Identification (RFID) tag uniquely associated therewith. The dispensing unit includes compartments for receiving medical products therein, and readers for reading the RFID tags associated with the medical products in the compartments. A processor is coupled to the readers for receiving and processing readings of the RFID tags in the compartment to identify the medical products in the compartments. The processor may identify a medical product removed from a compartment by determining a difference between readings of the RFID tags in the compartment taken before and after the medical product is removed from the compartment. The processor may verify that the medical product removed from the compartment is authorized to be removed or confirm that an identified patient is intended to receive the medical product being removed from the compartment.

Claims

1. A method for monitoring unit dose medical products stored in a medication-dispensing unit, each of the unit dose medical products comprising a Radio Frequency Identification (RFID) tag uniquely associated therewith, the method comprising:

removing a unit dose medical product from the dispensing unit;

identifying the unit dose medical product removed from the dispensing unit by detecting removal of the RFID tag associated with the medical product removed from the dispensing unit;

verifying that the unit dose medical product removed from the dispensing unit is authorized to be removed from the dispensing unit, the verifying step comprising comparing a product name identified by the RFID tag removed from the dispensing unit with a product authorized to be removed from the dispensing unit; and

further comprising identifying a patient, and wherein the verifying step further comprises comparing a product name identified by the RFID tag removed from the dispensing unit with a list of medical products scheduled for delivery to the identified patient and assigning the removed unit dose medical product to an individual patent to ensure that the correct medical product is delivered to the patient.

2. The method of claim 1, further comprising:

returning a medical product to the dispensing unit; and

reading an RFID tag associated with the medical product to identify the returned medical product.

3. The method of claim 2, further comprising determining an intended patient for the returned medical product, and sending a notice that the intended patient did not receive the returned medical product.

4. A method for monitoring unit dose medical products as in claim 1 wherein the unit dose medical products are medication containers each comprising one of a vial, bottle or bag.

5. A method for monitoring unit dose medical products stored in a medication-dispensing unit, each of the unit dose medical products comprising a Radio Frequency Identification (RFID) tag uniquely associated therewith, the method comprising:

removing a unit dose medical product from the dispensing unit;

identifying the unit dose medical product removed from the dispensing unit by detecting removal of the RFID tag associated with the medical product removed from the dispensing unit, wherein the steps of identifying the medical product removed from the dispensing unit further comprises;

reading the RFID tags of the medical products in the dispensing unit before the medical product is removed from the dispensing unit;

reading the RFID tags of the medical products in the dispensing unit after the medical product is removed from the dispensing unit and assigning the unit dose medical products to respective individual patients to ensure that correct medical products are delivered to the patients; and

determining a difference between the readings of the RFID tags taken before and after the medical product is removed from the dispensing unit to identify the unit dose medical product removed.

6. The method of claim 5, wherein the verifying step comprises comparing a product name identified by the RFID tag removed from the dispensing unit with a product name authorized to be removed from the dispensing unit.

7. The method of claim 6, wherein the product name of the medical product removed from the dispensing unit is obtained by reading the RFID tags before the medical product is removed from the dispensing unit.

8. The method of claim 5, further comprising identifying a patient, and wherein the verifying step further comprises comparing a product name identified by the RFID tag removed from the dispensing unit with a list products scheduled for delivery to the identified patient.

9. The method of claim 8, wherein the product name of the medical product removed from the dispensing unit is obtained by reading the REID tags before the medical product is removed from the dispensing unit.

10. A method for monitoring unit dose medical products as in claim 5 wherein the unit dose medical product removed from the dispensing unit is assigned to an individual patient upon removal from the dispensing unit.

11. A method for monitoring removal of unit dose medical products stored in a medication-dispensing unit, each of the unit dose medical products comprising a Radio Frequency Identification (RFID) tag uniquely associated therewith, the method comprising:

reading the RFID tags of the unit dose medical products in the dispensing unit before removing one or more medical products from the dispensing unit;

removing one or more unit dose medical products from the dispensing unit;

reading the RFID tags of the medical products in the dispensing unit after the one or more medical products are removed from the dispensing unit; and

determining a difference between the readings of the RFID tags taken before and after the one or more medical products are removed from the dispensing unit to identify the one or more unit dose medical products removed from the dispensing unit, and assigning the unit dose medical products to respective individual patients to ensure that correct medical products are delivered to the patients.

12. The method of claim 11, further comprising verifying that the one or more medical products removed from the dispensing unit are authorized to be removed from the dispensing unit.

13. The method of claim 12, wherein the verifying step comprises comparing a product name identified by an RFID tag removed from the dispensing unit with a product name authorized to be removed from the dispensing unit.

14. The method of claim 12, further comprising identifying a patient, and wherein the verifying step further comprises comparing a product name identified by the RFID tag removed from the dispensing unit with a list of medical products scheduled for delivery to the identified patient.

15. The method of claim 11, further comprising transmitting an inventory notice from the dispensing unit when a quantity of RFID tags stored within the dispensing unit falls below a threshold.

16. The method of claim 11, further comprising:

returning a medical product to the dispensing unit;

reading the RFID tags of the medical products in the dispensing unit after the medical product is returned to the dispensing unit; and

determining a difference between the readings of the RFID tags taken before and after the medical products are returned to the dispensing unit to identify the medical product returned to the dispensing unit.

17. The method of claim 16, further comprising determining an intended patient for the returned medical product, and sending a notice that the intended patient did not receive the returned medical product.

18. An apparatus for tracking unit dose medical products, each of the unit dose medical products having a radio frequency identification (RFID) tag uniquely associated therewith, the apparatus comprising

a casing comprising a plurality of lockable drawers for receiving one or more unit dose medical products therein,

a reader for reading the RFID tags associated with the unit dose medical products in the drawers,

a processor coupled to the reader for receiving and processing readings of the RFID tags in the drawer to identify medical products in the drawer,

wherein the processor can verify that a unit dose medical product removed from a drawer is authorized to be removed and the removed medical product is assigned to an individual patient as the medical product is removed, and

wherein the processor can identify a medical product removed from a drawer by determining a difference between readings of RFID tags in the drawer taken before and after a medical product is removed.

19. The apparatus of claim 18, wherein the product identifier comprises at least one of a product name, a serial number, a product lot number, and a patient identifier.

20. The apparatus of claim 18, further comprising a display coupled to the processor, and wherein the processor displays a mismatch notification on the display when the processor detects a mismatch between the product identifier read from the RFID tag of the removed medical product and the product identifier of the medical product authorized to be removed.

21. The apparatus of claim 20, wherein the mismatch notification comprises the product identifier read from the RFID tag of the removed medical product and the product identifier of the medical product authorized to be removed.

22. The apparatus of claims 18, wherein the apparatus includes a single reader for reading the RFID tags of all medical products in the casing.

23. The apparatus of claim 18, wherein each drawer comprises a plurality of compartments, and wherein the reader comprises a plurality of readers for reading the RFID tags of medical products in respective compartments.

24. The apparatus of claim 18, further comprising an input device coupled to the processor for identifying a patient to be associated with one or more medical products being removed from the drawer.

25. The apparatus of claim 18, further comprising a return drawer for returning unused medical products, and a reader for reading an RFID tag of any returned medical product placed in the return drawer, the processor coupled to the reader for identifying the returned medical product.

26. A method for monitoring removal of unit does medical products stored in a medication-dispensing unit, each of the unit dose medical products comprising a Radio Frequency Identification (RFID) tag uniquely associated therewith, the method comprising:

reading the RFID tags of the unit dose medical products in the dispensing unit before removing one or more medical products from the dispensing unit;

removing one or more unit dose medical products from the dispensing unit;

reading the RFID tags of the medical products in the dispensing unit after the one or more medical products are removed from the dispensing unit;

determining a difference between the readings of the RFID tags taken before and after the one or more medical products are moved from the dispensing unit to identify the one or more unit dose medical products removed from the dispensing unit,

returning a unit dose medical product to the dispensing unit;

reading the RFID tags of the medical products in the dispensing unit after the medical product is returned to the dispensing unit; and

determining a difference between the readings of the RFID tags taken before and after the medical products are returned to the dispensing unit to identify the medical product returned to the dispensing unit.

27. The method of claim 26 further comprising determining an intended patient for the returned medical product, and sending a notice that the intended patient did not receive the returned medical product.

28. The method of claim 26 wherein a returned medical product cannot be removed from the dispensing unit without gaining authorization to override a lock and open the unit for removal.