Record and verification method and system for radiation therapy

• US 6,497,358 B1
• Filed: 12/28/1999
• Issued: 12/24/2002
• Est. Priority Date: 09/13/1999
• Status: Expired due to Term

• Current Assignee: Christopher S. Walsh
• Original Assignee: Christopher S. Walsh
• Inventors: Walsh, Christopher S.
• Primary Examiner(s): Frech, Karl D.
• Assistant Examiner(s): Sanders, Allyson
• Application Number:
  US09/473,138
• Time in Patent Office: 1,092 Days
• Field of Search: 239/380, 239/382, 239/383, 239/375, 705/64, 705/65, 705/67, 705/72, 705/75, 705/3
• US Class Current: 235/380
• CPC Class Codes: A61N 2005/1074 Details of the control system, e.g. user interfaces
• CPC Class Codes: A61N 5/1048 Monitoring, verifying, controlling systems and methods
• CPC Class Codes: G06K 19/10 at least one kind of marking being used for authentication, e.g. of credit or identity cards verification of coded identity or credit cards in mechanisms actuated by them G07F7/12
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06Q 10/10 Office automation; Time management
• CPC Class Codes: G06Q 20/367 involving electronic purses or money safes
• CPC Class Codes: G06Q 20/3674 involving authentication
• CPC Class Codes: G06Q 20/382 insuring higher security of transaction
• CPC Class Codes: G06Q 20/4012 Verifying personal identification numbers [PIN]
• CPC Class Codes: G16H 10/65 stored on portable record carriers, e.g. on smartcards, RFID tags or CD
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture

Abstract

A method is provided for verification of the identification of a patient undergoing radiation treatment administered by a treatment technologist in a treatment room. An identifying card for the patient is provided which is part of the patient'"'"'s treatment file and which includes an identifying optical code capable of being read by an optical reader located within the treatment room. The treatment technologist causes the identifying card of the treatment file to be read by the optical reader in the treatment room, and a characteristic audio signal, previously assigned to the patient and known to the patient and the treatment technologist, is generated in response to the reading of the identifying card when there is a match between the identifying optical code and a stored identifying code for the patient. If an audio signal is generated responsive to reading of the card, both the patient and technologist listen to the signal, and checks are made and treatment of the patient is at least temporarily withheld if the patient and technologist do not agree that the audio signal generated is the characteristic audio signal assigned to the patient. The identifying card also includes a photograph of the patient which is used by the technologist in identifying the patient.

Claims

1. A method of verification of an identification of a patient undergoing radiation treatment administered by a treatment technologist in a treatment room using a radiation source, said method comprising:

providing an identifying card for the patient including an identifying optical code capable of being read by an optical reader located within the treatment room;

causing the identifying card to be read by said optical reader in the treatment room;

generating a characteristic audio signal, previously assigned to the patient and known to the patient and the treatment technologist, in response to the reading of said identifying card when there is a match between the identifying optical code and a stored identifying code for the patient; and

at least temporarily withholding treatment of the patient if the patient and technologist do not agree that any audio signal generated is the characteristic audio signal assigned to the patient.

2. A method according to claim 1 wherein said identifying card includes a photograph of the patient and the photograph is used by the technologist in identifying the patient.

3. A method according to claim 1 wherein said identifying card is affixed to a treatment file containing treatment data for use by the technologist during treatment, and the card affixed to the treatment file is caused to be read by the technologist thereby ensuring that the technologist takes the treatment file into the treatment room.

4. A method according to claim 3 further comprising generating an electronic record comprising treatment data associated with the treatment to be administered and including said identifying optical code, causing the identifying optical code of the electronic record to be read by a further optical reader in the treatment room, generating said characteristic audio signal in response to reading of said identifying code of the electronic record, and at least temporarily withholding treatment if the patient and the technologist do not agree that any audio signal generated in response to said reading of the identifying code of the electronic record is the characteristic audio signal assigned to the patient.

5. A method according to claim 4 wherein said optical readers are caused to read the respective optical codes of the card and the electronic record at closely spaced times.

6. A method according to claim 5 wherein said respective optical codes are caused to be read by different technologists.

7. A method according to claim 6 wherein the optical readers are located on opposite walls of the treatment room.

8. A method according to claim 4 wherein said optical reader and said further optical reader are a part of respective verification stations located inside of the treatment room and the stored identifying code is stored at a verification workstation located outside of the treatment room and linked to said respective verification stations.

9. A method according to claim 1 wherein said optical reader is part of a first verification station located inside of the treatment room and the stored identifying code is stored at a verification workstation located outside of the treatment room and linked to the first verification station.

10. A method according to claim 9 wherein the identifying card includes a photograph of the patient and the photograph is used by the technologist at the verification workstation in storing the stored identifying code.

11. A method of identification, and verification of the identification, of a patient undergoing radiation treatment by a radiation source administered by a treatment technologist in a treatment room, said method comprising:

providing a treatment file for the patient to be treated containing a prescribed treatment regimen for the patient;

providing an identifying card affixed to the treatment file and including a photograph of the patient together with an identifying optical code capable of being read by an optical reader located within the treatment room;

causing the identifying card of the treatment file to be read by said optical reader in the treatment room;

generating a characteristic audio signal known to the patient and the treatment technologist in response to the reading of said identifying card when there is a match between the identifying optical code and a stored identifying code for the patient; and

providing for checking of the treatment file by the technologist if the patient and technologist do not agree that the audio signal generated is the characteristic audio signal assigned to the patient.

12. A method according to claim 11 further comprising generating an electronic record comprising treatment data associated with the treatment to be administered and including said identifying optical code, causing the identifying optical code of the electronic record to be read by a further optical reader in the treatment room, generating said characteristic audio signal in response to reading of said identifying code of the electronic record, and checking the treatment file and at least temporarily withholding treatment by the technologist if the patient and the technologist do not agree that any audio signal generated in response to said reading of the identifying code of the electronic record is the characteristic audio signal assigned to the patient.

13. A method according to claim 12 wherein said optical readers are caused to read the respective optical codes of the card and the electronic record at closely spaced times.

14. A method according to claim 13 wherein said respective optical codes are caused to be read by different technologists.

15. A method according to claim 14 wherein the optical readers are located on opposite walls of the treatment room.

16. A method according to claim 12 wherein said optical reader and said further optical reader are a part of respective verification stations located at different locations inside of the treatment room and the stored identifying code is stored at a verification workstation located outside of the treatment room and linked to said respective verification stations.

17. A method according to claim 11 wherein said optical reader is part of a first verification station located inside of the treatment room and the stored identifying code is stored at a verification workstation located outside of the treatment room and linked to the first verification station.

18. A record and verify method for use with a radiation therapy system including, located in a treatment room, a radiation treatment device for providing radiation treatment and a treatment monitor for monitoring the treatment provided by the radiation treatment device, said method comprising:

(a) using a patient chart for a patient to be treated to enter treatment data into the treatment monitor;

(b) retrieving stored treatment data for use at a verification monitor;

(c) sending the entered treatment data to the verification monitor for comparison with the stored treatment data;

(d) comparing each data entry of the entered treatment data with a corresponding stored data point of the stored treatment data;

(e) using the verification monitor to output an identifier for each data entry which, based on said comparison, is outside of predetermined tolerances;

(f) correcting, as necessary, the data entered into the treatment monitor based on the output received from said verification monitor to produce corrected treatment data;

(g) generating an electronic record of the corrected treatment data;

(h) using a high speed printer to print prescribed treatment data on a paper verification sheet;

(i) cross checking the corrected treatment data with previous treatment data, if any;

(j) when the printed paper verification sheet is checked and determined to be accurate, using the radiation treatment device in treating the patient so as to generate actual core treatment data;

(k) printing said actual treatment data on the paper verification sheet to produce an updated verification sheet;

(l) after completion of a final treatment field of the radiation treatment, reviewing and signing off on the updated verification sheet;

(m) manually entering the actual data obtained from the treatment monitor into the patient'"'"'s chart and reviewing and signing off on the manual entry of the actual data on the patient'"'"'s chart; and

(n) checking the core treatment data on the updated verification sheet against the actual treatment data entered into the patient'"'"'s chart and, if there is agreement, signing off on the patient'"'"'s chart and the updated verification sheet.

19. A method according to claim 18 wherein first and second radiation technologists carry out the method, and wherein the first therapist is responsible for steps (a), (c), (f), (j) and (m) and the second therapist is responsible for steps (a), (b), (d), (e), (g), (h), (i), (k) and (n).

20. The method according to claim 19 wherein the first therapist also reviews and signs off on the hard copy upon completion of the method.

21. A verification system for use in verification of an identity of a patient about to undergo radiation treatment administered to the patient by radiation source in a treatment room under control of at least one treatment technologist and monitored by a treatment monitor located in the treatment room, said system comprising:

a verification workstation, located outside of the treatment room, including means for storing a patient identifying code for the patient; and

at least one verification station linked to said workstation and located within the treatment room, said at least one verification station including an optical reader and means for generating an audible output assigned to the patient, responsive to said optical reader reading a patient identifying code assigned to the patient that matches the patient identifying code stored at said verification workstation.

22. A system according to claim 21 wherein said at least one verification station comprises first and second verification stations located within the treatment room at spaced locations on opposite sides of the radiation source.

35. A system according to claim 22 wherein the optical reader of each of said first and second verification stations comprises a barcode reader.

36. A system according to claim 21 wherein said radiation source comprises an accelerator, said system includes an acceleration workstation including a monitor and said verification workstation is also linked to said accelerator workstation.

37. A system according to claim 21 wherein said verification workstation includes a barcode reader and a card swipe reader.

23. A treatment verification method for use with a radiation therapy system including a radiation treatment device for providing radiation treatment, the method comprising:

a) providing automated and manual set up options for setting of treatment field values for the radiation treatment device wherein, in the automated option, treatment field values are automatically entered as received from a computer at a verification station and wherein, in the manual option, the treatment field values are entered by a technologist at a radiation treatment device workstation;

b) setting different predetermined tolerances based on whether the treatment field values are to be entered in an automated manner by the computer in accordance with said automated option or are to be entered manually by the technologist in accordance with said manual option;

c) selecting between said options and proceeding with the selected option;

d) comparing each data entry for the entered treatment field values with a corresponding stored data point of stored treatment field values; and

e) using the verification monitor to output an identifier for each data entry which, based on said comparison, is outside of the predetermined tolerances for the option selected.

24. A method of verification of an identification of a patient undergoing treatment administered by a medical treatment practitioner in a treatment room, said method comprising:

providing an identifying card for the patient including a patient identifier capable of being read by a reader device located within the treatment room;

causing the identifying card to be read by said reader device in the treatment room;

generating a characteristic audio signal, previously assigned to the patient and known to the patient, in response to the reading of said identifying card when there is a match between the patient identified and a stored identifier for the patient; and

at least temporarily withholding treatment of the patient if any audio signal generated in response to reading of the identifying card by the reader device is not the characteristic audio signal assigned to the patient.

25. A method as claimed in claim 24 wherein the audio signal is also known to the medical practitioner and treatment of the patient is at least temporarily withheld if the patient and the medical practitioner do not agree that any audio signal generated is the characteristic audio signal assigned to the patient.

26. A method according to claim 25 wherein said identifying card includes a photograph of the patient and the photograph is used by the medical practitioner in identifying the patient.

27. A method according to claim 24 wherein said identification card is a part of a treatment file containing treatment data for use by the medical practitioner during treatment, and the card is caused to be read by the medical practitioner to thereby ensure that the medical practitioner takes the treatment file into the treatment room.

28. A method according to claim 27 further comprising generating an electronic record comprising treatment data associated with the treatment to be administered and including said patient identifier, causing the patient identifier of the electronic record to be read by a further reader device in the treatment room, generating said characteristic audio signal in response to reading of said patient identifier of the electronic record, and at least temporarily withholding treatment if any audio signal generated in response to said reading of the patient identifier of the electronic record is not the characteristic audio signal assigned to the patient.

29. A method according to claim 28 wherein said reader devices are caused to read the respective patient identifiers of the card and the electronic record at closely spaced times.

30. A method according to claim 29 wherein the respective patient identifiers are caused to be read by different medical practitioners.

31. A method according to claim 30 wherein the reader devices are located on opposite walls of the treatment room.

32. A method according to claim 24 wherein the reader device and a further reader device are provided as parts of respective verification stations located at spaced locations inside of the treatment room and the stored identifying code is stored at a verification workstation located outside of the treatment room and linked to said respective verification stations.

33. A method according to claim 24 wherein said reader device is part of a first verification station located inside of the treatment room and the stored identifying code is stored at a verification workstation located outside of the treatment room and linked to the first verification station.

34. A method according to claim 33 wherein the identifying card includes a photograph of the patient and the photograph is used by the medical practitioner at the verification workstation in storing the stored identifying code.