System for sensing and recording consumption of medical items during medical procedure

• US 9,922,304 B2
• Filed: 10/02/2014
• Issued: 03/20/2018
• Est. Priority Date: 11/05/2013
• Status: Active Grant

• Current Assignee: Deroyal Industries Incorporated
• Original Assignee: Deroyal Industries Incorporated
• Inventors: DeBusk, Brian C., Kaylor, Mary E., Griffith, Gerald T., Waggoner, Timothy J., Griffith, Jeffrey D., Sewell, Angela M., Jacobs, John G., Hurd, Rex A.
• Primary Examiner(s): Le, Linh Giang
• Application Number:
  US14/504,859
• Publication Number:
  US 20150127362A1
• Time in Patent Office: 1,265 Days
• CPC Class Codes: B65F 1/1426 Housings, cabinets or enclosures for refuse receptacles B65F1/006, B65F1/1452 take precedence
• CPC Class Codes: B65F 2210/124 Counting means
• CPC Class Codes: B65F 2210/138 Identification means
• CPC Class Codes: G06K 7/10316 using at least one antenna particularly designed for interrogating the wireless record carriers antennas in general H01Q1/22
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders
• CPC Class Codes: G06Q 10/10 Office automation; Time management
• CPC Class Codes: G06Q 20/145 Payments according to the detected use or quantity
• CPC Class Codes: G06Q 20/203 Inventory monitoring
• CPC Class Codes: G06Q 20/208 Input by product or record sensing, e.g. weighing or scanner processing
• CPC Class Codes: G07F 17/0092 for assembling and dispensing of pharmaceutical articles medical dispensers for private use, A61J7/00
• CPC Class Codes: G07G 1/009 the reader being an RFID reader
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 40/20 for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms

Abstract

An apparatus senses and records consumption of medical items during performance of a medical procedure. The medical items are enclosed in wrappers having RFID tags in which medical item information is encoded. The apparatus includes a shielded enclosure that attenuates radio frequency signals emanated from RFID tags disposed outside the shielded enclosure to levels that are substantially undetectable within the internal space. RFID antennas inside the shielded enclosure receive radio frequency signals emanated from RFID tags on wrappers that are removed from used items and placed inside the enclosure. An RFID reader decodes the medical item information encoded in the RFID tags. A computer processor executes a medical item inventory module including instructions for generating a post-op list of medical items consumed during the medical procedure. Item billing information and usage trend information may be derived from the post-op list. Also, Latex alerts and item expiration alerts may be generated based on information encoded in the RFID tags.

Claims

1. An apparatus for sensing and recording consumption of medical items during performance of a medical procedure, wherein the medical items are at least initially enclosed in wrappers having RFID tags disposed in or on the wrappers, wherein medical item information regarding the medical items is encoded in the RFID tags, the apparatus comprising:

a shielded enclosure having an internal space for receiving the wrappers of the medical items, the shielded enclosure configured to attenuate radio frequency signals emanated from RFID tags disposed outside the shielded enclosure to levels that are substantially undetectable within the internal space;

one or more first RFID antennas for receiving radio frequency signals emanated from RFID tags attached to the wrappers disposed within the internal space, wherein the radio frequency signals contain the medical item information encoded in the RFID tags;

at least one first RFID reader electrically connected to the one or more first RFID antennas, the at least one first RFID reader for decoding the medical item information contained in the radio frequency signals emanated from the RFID tags;

a portal having;

a portal opening through which unused wrappers pass, the unused wrappers enclosing medical items that are available for use; and

one or more second RFID antennas for receiving radio frequency signals emanated from RFID tags attached to the unused wrappers that pass through the portal; and

at least one second RFID reader electrically connected to the one or more second RFID antennas of the portal, the at least one second RFID reader for decoding the medical item information contained in the radio frequency signals emanated from the RFID tags that pass through the portal; and

a computer in electrical communication with the at least one first RFID reader and the at least one second RFID reader, the computer having a processor for executing a medical item inventory module comprising;

instructions for receiving the medical item information decoded by the at least one first RFID reader and generating a post-op used-item list of medical items consumed during the medical procedure based on the medical item information encoded in the RFID tags attached to used wrappers disposed in the internal space of the shielded enclosure;

instructions for receiving the medical item information decoded by the at least one second RFID reader and generating a post-op unused-item list of medical items that were not consumed during the medical procedure based on medical item information encoded in RFID tags attached to the unused set of wrappers that pass through the portal; and

instructions for analyzing the post-op unused-item list of medical items that were not consumed during the medical procedure and post-op unused-item lists generated during multiple other medical procedures of the same type performed by the same doctor to determine trends in the lack of usage of certain medical items listed on Bills of Materials or Doctor Preference Cards.

2. The apparatus of claim 1 further comprising a waste bin that is disposable within the internal space of the shielded enclosure, the waste bin having an open top for receiving the used wrappers that are dropped into the waste bin during performance of the medical procedure.

3. The apparatus of claim 2 wherein the shielded enclosure includes a door in a sidewall of the shielded enclosure, the door covering an opening that is large enough to accommodate the waste bin.

4. The apparatus of claim 3 wherein:

the shielded enclosure includes a switch disposed adjacent the door, such that opening or closing the door engages the switch to cause a change in state of the switch; and

the at least one first RFID reader is electrically connected to the switch, wherein a change in state of the switch triggers the at least one first RFID reader to start or stop decoding information encoded in the radio frequency signals emanated from the RFID tags.

5. The apparatus of claim 1 wherein the shielded enclosure includes an aperture through which the used wrappers may be deposited into the internal space as medical items are consumed during performance of the medical procedure, the aperture including means for attenuating radio frequency signals emanated from RFID tags disposed outside the shielded enclosure to levels that are substantially undetectable within the internal space.

6. The apparatus of claim 5 wherein the means for attenuating radio frequency signals emanated from RFID tags disposed outside the shielded enclosure comprise one or more covers disposed over the aperture.

7. The apparatus of claim 1 wherein the medical item inventory module further comprises instructions for recording time information in the post-op used-item list, the time information indicating a time at which each wrapper of the used set of wrappers was deposited into the internal space of the shielded enclosure.

8. The apparatus of claim 1 wherein the medical item inventory module further comprises instructions for generating billing information based on the post-op used-item list of medical items consumed during the medical procedure.

9. The apparatus of claim 1 wherein the medical item inventory module further comprises:

instructions for comparing the post-op used-item list and the post-op unused-item list to a pre-op list of medical items that were picked from inventory to be consumed during the medical procedure;

instructions for generating a first alert message if any item in the pre-op list does not appear in at least one of the post-op used-item list and post-op unused-item list; and

instructions for generating a second alert message if any item in the post-op used-item list or the post-op unused-item list does not appear in the pre-op list.

10. The apparatus of claim 1 wherein the wrappers comprise a pre-op set of wrappers enclosing medical items that were picked from inventory to be consumed during the medical procedure, and wherein:

the portal opening allows passage of the pre-op set of wrappers through the portal prior to beginning the medical procedure; and

the medical item inventory module further comprises instructions for receiving the medical item information decoded by the at least one second RFID reader and generating a pre-op list of medical items that were picked from inventory to be consumed during the medical procedure, the instructions generating the pre-op list based on medical item information encoded in RFID tags attached to the pre-op set of wrappers.

11. The apparatus of claim 1 wherein the portal opening comprises a passageway, an aperture, a window, a doorway, a gateway, a hallway, a pathway, an aisle, or a handheld scanning device.

12. An apparatus for sensing and recording consumption of medical items during performance of a medical procedure, wherein the medical items are at least initially enclosed in wrappers having RFID tags disposed in or on the wrappers, wherein medical item information regarding the medical items is encoded in the RFID tags, the apparatus comprising:

a waste bin having an open top for receiving a first set of wrappers dropped into the waste bin during performance of the medical procedure;

a shielded enclosure configured to attenuate radio frequency signals emanated from RFID tags disposed outside the shielded enclosure to levels that are substantially undetectable within the shielded enclosure, the shielded enclosure having a door covering an opening large enough to accommodate placement of the waste bin into and removal of the waste bin from within the shielded enclosure;

one or more first RFID antennas for receiving radio frequency signals emanated from RFID tags attached to the wrappers disposed in the waste bin, wherein the radio frequency signals contain the medical item information encoded in the RFID tags;

a portal having;

a portal opening; and

one or more second RFID antennas for receiving radio frequency signals emanated from RFID tags attached to wrappers that are passed through the portal; and

at least one RFID reader electrically connected to the first and second RFID antennas, the at least one RFID reader for decoding the medical item information contained in the radio frequency signals emanated from the RFID tags; and

a computer in electrical communication with the at least one RFID reader, the computer having a processor for executing a medical item inventory module comprising;

instructions for receiving the medical item information decoded by the at least one RFID reader;

instructions for generating a post-op used-item list of medical items consumed during the medical procedure based on the medical item information encoded in the RFID tags attached to a used set of wrappers disposed in the waste bin;

instructions for generating a post-op unused-item list of medical items that were not consumed during the medical procedure based on medical item information encoded in RFID tags attached to an unused set of wrappers enclosing medical items that were not consumed during the medical procedure, wherein the unused set of wrappers are passed through the portal opening after completion of the medical procedure;

instructions for comparing the post-op used-item list and the post-op unused-item list to a pre-op list of medical items that were picked from inventory to be consumed during the medical procedure;

instructions for generating a first alert message if any item in the pre-op list does not appear in at least one of the post-op used-item list and post-op unused-item list; and

instructions for generating a second alert message if any item in the post-op used-item list or the post-op unused-item list does not appear in the pre-op list.

13. The apparatus of claim 12 wherein the medical item inventory module further comprises instructions for generating the pre-op list of medical items based on medical item information encoded in RFID tags attached to a pre-op set of wrappers enclosing medical items that were picked from inventory to be consumed during the medical procedure, wherein the pre-op set of wrappers passes through the portal opening prior to beginning the medical procedure.

14. The apparatus of claim 12 wherein the portal opening comprises a passageway, an aperture, a window, a doorway, a gateway, a hallway, a pathway, or an aisle.

15. A method for sensing and recording consumption of medical items during performance of a medical procedure, the method comprising:

(a) picking medical items from inventory that are enclosed in wrappers including RFID tags, wherein medical item information regarding the medical items is encoded in the RFID tags;

(b) passing the medical items picked in step (a) through an opening in a portal;

(c) using one or more RFID antennas disposed in the opening of the portal, receiving radio frequency signals emanated from RFID tags attached to the wrappers of the medical items passed through the opening of the portal;

(d) using an RFID reader electrically connected to the one or more RFID antennas disposed in the opening of the portal, decoding the medical item information contained in the radio frequency signals emanated from the RFID tags;

(e) during performance of the medical procedure, consuming at least some of the medical items picked in step (a);

(f) placing the wrappers of the medical items consumed during performance of the medical procedure into a shielded enclosure;

(g) using one or more RFID antennas disposed in or on the shielded enclosure, receiving radio frequency signals emanated from RFID tags attached to the wrappers disposed in the shielded enclosure, wherein the radio frequency signals contain the medical item information encoded in the RFID tags;

(h) using an RFID reader electrically connected to the one or more RFID antennas disposed in or on the shielded enclosure, decoding the medical item information contained in the radio frequency signals emanated from the RFID tags;

(i) using a computer processor, generating a post-op used-item list of medical items consumed during the medical procedure based on the medical item information encoded in the RFID tags attached to the wrappers disposed in the shielded enclosure;

(j) using a computer processor, generating a pre-op list of medical items picked from inventory to be used during the medical procedure, the pre-op list generated based on the medical item information encoded in the RFID tags attached to the wrappers of the medical items passed through the opening of the portal in step (b);

(k) using a computer processor, generating billing information based on the post-op used-item list of medical items consumed during the medical procedure;

(l) after step (e), passing medical items picked in step (a) that were not consumed during performance of the medical procedure through the opening of the portal;

(m) using the one or more RFID antennas disposed in the opening of the portal, receiving radio frequency signals emanated from RFID tags attached to the wrappers of the medical items passed through the opening of the portal;

(n) using the RFID reader electrically connected to the one or more RFID antennas disposed in the opening of the portal, decoding the medical item information contained in the radio frequency signals emanated from the RFID tags; and

(o) using a computer processor, generating a post-op unused-item list of medical items picked from inventory but not used during the medical procedure, the post-op unused-item list generated based on the medical item information encoded in the RFID tags attached to the wrappers of the medical items passed through the opening of the portal in step (l).

16. The method of claim 15 further comprising:

(l) comparing the post-op used-item list and the post-op unused-item list to the pre-op list of medical items that were picked from inventory to be consumed during the medical procedure;

(q) generating a first alert message if any item in the pre-op list does not appear in at least one of the post-op used-item list and post-op unused-item list; and

(r) generating a second alert message if any item in the post-op used-item list or the post-op unused-item list does not appear in the pre-op list.

17. The method of claim 15 wherein step (i) further comprises generating the post-op used-item list including time information indicating a time at which each wrapper was deposited into the shielded enclosure.

18. The method of claim 15 wherein step (f) comprises depositing the wrappers of the medical items consumed during performance of the medical procedure into a waste bin and then placing the waste bin containing the wrappers into the shielded enclosure.

19. A method for sensing and recording consumption of medical items during performance of a medical procedure on a patient, the method comprising:

(a) sensing that a medical item having an RFID tag has entered a medical procedure room using at least one first RFID sensor at a portal associated with the room;

(b) sensing that an RFID tag attached to the patient has entered the medical procedure room using the at least one first RFID sensor at the portal, wherein the RFID tag attached to the patient encodes a patient identification number;

(c) storing in a database one or more of a lot identification number and a unique device identification (UDI) number associated with the medical item having the RFID tag, wherein the lot identification number identifies a manufacturer'"'"'s lot number for the medical item;

(d) storing in the database the patient identification number associated with the patient;

(e) sensing that the medical item having the RFID tag has been consumed during the medical procedure using at least one second RFID sensor associated with a waste container located in the room; and

(f) based on sensing that the medical item has been consumed during performance of the medical procedure and sensing that the RFID tag attached to the patient has entered the medical procedure room, automatically associating in the database the patient identification number with one or more of the lot identification number and the unique device identification (UDI) number.

20. The method of claim 19 further comprising:

(g) storing in the database a doctor identification number associated with a doctor involved with performance of the medical procedure; and

(h) associating in the database the item identification number and the doctor identification number based on sensing that the medical item was consumed during performance of the medical procedure.

21. The method of claim 20 wherein step (h) is based at least in part on sensing that an RFID tag attached to the doctor has entered the medical procedure room using the at least one first RFID sensor at the portal, wherein the RFID tag attached to the doctor encodes the doctor identification number.

22. The method of claim 19 further comprising:

(g) determining that the medical item having one or more of the lot identification number and the unique device identification (UDI) number associated in the database with the patient identification number is subject to a manufacturer recall; and

(h) based on the determination of step (g), generating an alert directed to the attention of medical personnel, the alert providing notice of the manufacture recall of the medical item.

23. A method for sensing and recording utilization of medical resources in performance of a medical procedure in a medical facility, the method comprising:

(a) attaching an RFID tag to each of a plurality of medical resources, each RFID tag containing medical resource information that uniquely identifies the medical resource to which the RFID tag is attached, the plurality of medical resources including a wrapper of a first medical item and a wrapper of a second medical item;

(b) disposing a first portal to detect RFID tags that enter and exit a medical procedure room within the medical facility, the first portal comprising a first portal opening and one or more first RFID antennas having fields of view directed to the first portal opening;

(c) disposing a second portal to detect only RFID tags that enter a waste container in the medical procedure room, the second portal comprising a second portal opening and one or more second RFID antennas having fields of view directed to the second portal opening;

(d) the one or more first RFID antennas receiving radio frequency signals emanated from the RFID tag attached to the wrapper of the first medical item and the RFID tag attached to the wrapper of the second medical item as the first medical item and the second medical item pass through the first portal opening;

(e) the one or more second RFID antennas receiving radio frequency signals emanated from the RFID tag attached to the wrapper of the first medical item as the wrapper of the first medical item passes through the second portal opening;

(f) decoding first medical resource information contained in the radio frequency signals emanated from the RFID tag attached to the wrapper of the first medical item and decoding second medical resource information contained in the radio frequency signals emanated from the RFID tag attached to the wrapper of the second medical item;

(g) detecting the presence of the first and second medical items within the medical procedure room at a first time, the detecting based on the first and second medical resource information decoded from the radio frequency signals emanated from the RFID tags attached to the wrappers of the first and second medical items passing through the first portal opening, thereby indicating that the first and second medical items have entered the medical procedure room;

(h) detecting the presence of the wrapper of the first medical item within the waste container at a second time that is subsequent to the first time, the detecting based on the first medical resource information decoded from the radio frequency signals emanated from the RFID tag attached to the wrapper of the first medical item passing through the second portal opening, thereby indicating that the first medical item was used or consumed during the medical procedure;

(i) determining a first travel route of the first medical item based at least in part on detection of the first medical item entering the medical procedure room at the first time and detection of the wrapper of the first medical item within the waste container at the second time;

(j) the one or more first RFID antennas receiving radio frequency signals emanated from the RFID tag attached to the wrapper of the second medical item as the second medical item passes through the first portal opening while exiting the medical procedure room at a third time that is subsequent to the first time, thereby indicating that the second medical item exited the medical procedure room at the third time without being used or consumed;

(k) determining a second travel route of the second medical item based at least in part on detection of the second item entering the medical procedure room at the first time and detection of the second medical item exiting the medical procedure room at the third time;

(l) creating a first utilization profile for the first medical item based on the first travel route, the first utilization profile indicating that the first medical item was used or consumed during performance of the medical procedure in the medical procedure room; and

(m) creating a second utilization profile for the second medical item based on the second travel route, the second utilization profile indicating that the second medical item entered the medical procedure room but was not used or consumed during performance of the medical procedure, and subsequently exited the medical procedure room.

24. The method of claim 23 further comprising:

(n) disposing a third portal at a doorway to a supply room within the medical facility, the third portal comprising a third portal opening and one or more third RFID antennas having fields of view directed to the third portal opening;

(o) prior to step (d), receiving radio frequency signals emanated from the RFID tag attached to the wrapper of the first medical item as the first medical item exits the supply room;

step (i) comprising determining that the first medical item exited the supply room and subsequently the first medical item entered the medical procedure room; and

step (l) comprising creating the first utilization profile further indicating that the first medical item was transferred from the supply room to the medical procedure room to be used during performance of the medical procedure.

25. The method of claim 23 wherein:

step (a) comprises attaching an RFID tag to a patient on which the medical procedure is to be performed;

step (d) comprises the one or more first RFID antennas receiving radio frequency signals emanated from the RFID tag attached to the patient as the patient passes through the first portal opening;

step (f) comprises decoding third medical resource information contained in the radio frequency signals emanated from the RFID tag attached to the patient;

step (g) comprises detecting the presence of the patient within the medical procedure room based on the third medical resource information; and

step (l) comprises creating the first utilization profile indicating that the first medical item entered the medical procedure room and was used during performance of the medical procedure on the patient identified by the third medical resource information.

26. The method of claim 23 wherein:

step (a) comprises attaching an RFID tag to a doctor who is to perform the medical procedure;

step (d) comprises the one or more first RFID antennas receiving radio frequency signals emanated from the RFID tag attached to the doctor as the doctor passes through the first portal opening;

step (f) comprises decoding fourth medical resource information contained in the radio frequency signals emanated from the RFID tag attached to the doctor;

step (g) comprises detecting the presence of the doctor within the medical procedure room based on the fourth medical resource information; and

step (l) comprises creating the first utilization profile indicating that the first medical item entered the medical procedure room and was used during performance of the medical procedure by the doctor who entered the medical procedure room.

27. A method for sensing and recording utilization of medical resources in performance of a medical procedure in a medical procedure room of a medical facility, the method comprising:

(a) attaching an RFID tag to a medical item, the RFID tag containing medical resource information that uniquely identifies the medical item;

(b) attaching an RFID tag to a patient on which the medical procedure is to be performed;

(c) disposing a portal at an entrance to the medical procedure room to detect RFID tags that enter and exit the medical procedure room, the portal comprising a portal opening and one or more RFID antennas having fields of view directed to the portal opening;

(d) the one or more RFID antennas receiving radio frequency signals emanated from the RFID tag attached to the medical item and the RFID tag attached to the patient as the medical item and the patient pass through the portal opening;

(e) decoding first medical resource information contained in the radio frequency signals emanated from the RFID tag attached to the medical item, wherein the first medical resource information indicates that the medical item contains a first substance;

(f) decoding second medical resource information contained in the radio frequency signals emanated from the RFID tag attached to the patient, wherein the second medical resource information indicates that the patient is allergic to the first substance;

(g) determining that the medical item containing the first substance entered the medical procedure room and the patient who is allergic to the first substance entered the medical procedure room; and

(h) upon making the determination of step (g), automatically generating an alert directed to the attention of medical personnel, the alert warning of danger of an allergic reaction due to simultaneous presence of the medical item and the patient in the medical procedure room.

28. A method for sensing and recording utilization of medical resources in performance of a medical procedure in a medical procedure room of a medical facility, the method comprising:

(a) attaching an RFID tag to a medical item, the RFID tag containing medical resource information that uniquely identifies the medical item;

(b) attaching an RFID tag to a patient on which the medical procedure is to be performed;

(c) disposing a portal at an entrance to the medical procedure room to detect RFID tags that enter and exit the medical procedure room, the portal comprising a portal opening and one or more RFID antennas having fields of view directed to the portal opening;

(d) the one or more RFID antennas receiving radio frequency signals emanated from the RFID tag attached to the medical item and the RFID tag attached to the patient as the medical item and the patient pass through the portal opening;

(e) decoding first medical resource information contained in the radio frequency signals emanated from the RFID tag attached to the medical item;

(f) decoding second medical resource information contained in the radio frequency signals emanated from the RFID tag attached to the patient, wherein the second medical resource information indicates that the patient carries a highly infectious contagion;

(g) based on the first and second medical resource information, determining that the medical item and the patient were simultaneously present in the medical procedure room;

(h) receiving radio frequency signals emanated from the RFID tag attached to the medical item as the medical item exits the procedure room; and

(i) generating an alert directed to the attention of medical personnel, the alert warning of danger of possible spread of the highly infectious contagion due to simultaneous presence of the medical item and the patient in the medical procedure room without proper disposal of the medical item in a waste container.