Use of location awareness to establish and suspend communications sessions in a healthcare environment

• US 20060236373A1
• Filed: 02/25/2005
• Published: 10/19/2006
• Est. Priority Date: 02/11/2005
• Status: Active Grant

• Current Assignee: Avaya Incorporated
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: Johnson, Brian, Fitchett, Jeff, Graves, Alan F.
• Granted Patent: US 7,676,380 B2
• Time in Patent Office: Days
• US Class Current: 726/3
• CPC Class Codes: G06F 21/35 communicating wirelessly
• CPC Class Codes: G16H 10/65 stored on portable record carriers, e.g. on smartcards, RFID tags or CD
• 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 40/67 for remote operation
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass

Abstract

A method of managing access to a healthcare information system of a healthcare establishment communications network. The method comprises receiving data regarding a wirelessly detectable tag associated with a clinician; determining whether the clinician is positioned relative to a terminal of the healthcare establishment communications network such that a proximity condition is satisfied based at least in part on the data regarding the wirelessly detectable tag; responsive to the proximity condition being satisfied, providing an opportunity for authentication of the clinician; and responsive to successful authentication of the clinician, establishing a session for the clinician between the terminal and the healthcare information system. The ability to detect proximity of clinician facilitates the process by which the clinician may access the healthcare information system, while the requirement for authentication of the clinician minimizes the risk of data being made available to an unauthorized party.

Claims

1. A method of managing access to a healthcare information system of a healthcare establishment communications network, said method comprising:

receiving data regarding a wirelessly detectable tag associated with a clinician;

determining whether the clinician is positioned relative to a terminal of the healthcare establishment communications network such that a proximity condition is satisfied based at least in part on the data regarding the wirelessly detectable tag;

responsive to the proximity condition being satisfied, providing an opportunity for authentication of the clinician;

responsive to successful authentication of the clinician, establishing a session for the clinician between the terminal and the healthcare information system.

2. A method as defined in claim 1, wherein the data regarding the wirelessly detectable tag comprises:

data indicative of an identifier of the wirelessly detectable tag; and

data indicative of a distance between the wirelessly detectable tag and a detector associated with the terminal and operative to detect a signal provided by the wirelessly detectable tag.

3. A method as defined in claim 2, wherein the data indicative of a distance between the wirelessly detectable tag and a detector associated with the terminal and operative to detect a signal provided by the wirelessly detectable tag comprises data indicative of a travel time of the signal.

4. A method as defined in claim 2, wherein the data indicative of a distance between the wirelessly detectable tag and a detector associated with the terminal and operative to detect a signal provided by the wirelessly detectable tag comprises data indicative of an intensity of the signal.

5. A method as defined in claim 1, wherein the data regarding the wirelessly detectable tag comprises:

data indicative of an identifier of the wirelessly detectable tag; and

data indicative of a respective distance between the wirelessly detectable tag and each one of at least three detectors spatially distributed in the healthcare establishment communications network, each one of the at least three detectors being operative to detect a signal provided by the wirelessly detectable tag.

6. A method as defined in claim 5, wherein the data indicative of a respective distance between the wirelessly detectable tag and each one of at least three detectors spatially distributed in the healthcare establishment communications network comprises data indicative of a respective travel time of the signal detected by each one of the at least three detectors.

7. A method as defined in claim 5, wherein the data indicative of a respective distance between the wirelessly detectable tag and each one of at least three detectors spatially distributed in the healthcare establishment communications network comprises data indicative of a respective intensity of the signal detected by each one of the at least three detectors.

8. A method as defined in claim 1, wherein determining that the proximity condition is satisfied comprises obtaining an indication of the clinician being within a predetermined distance from the terminal.

9. A method as defined in claim 1, wherein determining that the proximity condition is satisfied comprises obtaining an indication of the clinician being within a predetermined distance from the terminal for a predetermined period of time.

10. A method as defined in claim 1, wherein providing an opportunity for authentication of the clinician comprises being attentive to data indicative of a request for authentication of the clinician.

11. A method as defined in claim 1, wherein providing an opportunity for authentication of the clinician comprises being attentive for a predetermined period of time to data indicative of a request for authentication of the clinician.

12. A method as defined in claim 10, wherein the data indicative of a request for authentication of the clinician comprises authentication data for the clinician.

13. A method as defined in claim 1, wherein providing an opportunity for authentication of the clinician comprises causing display of a greeting message on a display of the terminal.

14. A method as defined in claim 1, further comprising, subsequent to providing an opportunity for authentication of the clinician, receiving authentication data for the clinician.

15. A method as defined in claim 14, wherein the authentication data for the clinician comprises data indicative of a biometric characteristic of the clinician.

16. A method as defined in claim 15, wherein the biometric characteristic of the clinician is a fingerprint of the clinician.

17. A method as defined in claim 16, wherein the data indicative of the biometric characteristic of the clinician is obtained via a fingerprint reader associated with the wirelessly detectable tag.

18. A method as defined in claim 14, wherein the authentication data for the clinician comprises data indicative of a password submitted by the clinician.

19. A method as defined in claim 14, further comprising authenticating the clinician using the authentication data for the clinician.

20. A method as defined in claim 1, further comprising, responsive to unsuccessful authentication of the clinician, denying establishment of a session for the clinician between the terminal and the healthcare information system.

21. A method as defined in claim 1, further comprising, responsive to the proximity condition being satisfied, accessing information contained in the healthcare information system in anticipation of potential establishment of a session for the clinician between the terminal and the healthcare information system.

22. A method as defined in claim 21, wherein accessing information contained in the healthcare information system in anticipation of potential establishment of a session for the clinician between the terminal and the healthcare information system comprises accessing information related to the clinician.

23. A method as defined in claim 22, wherein the information related to the clinician comprises a profile of the clinician.

24. A method as defined in claim 22, wherein the information related to the clinician comprises information related to at least one patient associated with the clinician.

25. A method as defined in claim 24, wherein the information related to at least one patient associated with the clinician comprises at least a portion of an electronic health record of each one of the at least one patient associated with the clinician.

26. A method as defined in claim 21, wherein accessing information contained in the healthcare information system in anticipation of potential establishment of a session for the clinician between the terminal and the healthcare information system comprises accessing information related to at least one patient.

27. A method as defined in claim 26, wherein the information related to at least one patient comprises at least a portion of an electronic health record of each one of the at least one patient.

28. A method as defined in claim 21, wherein accessing information contained in the healthcare information system in anticipation of potential establishment of a session for the clinician between the terminal and the healthcare information system comprises accessing information related to at least one patient in proximity to the terminal.

29. A method as defined in claim 28, wherein the information related to at least one patient in proximity to the terminal comprises at least a portion of an electronic health record of each one of the at least one patient in proximity to the terminal.

30. A method as defined in claim 1, wherein the session for the clinician between the terminal and the healthcare information system causes information to be displayed on a display of the terminal, said method further comprising:

determining whether the clinician is positioned relative to the terminal such that a remoteness condition is satisfied based at least in part on the data regarding the wirelessly detectable tag;

responsive to the remoteness condition being satisfied, causing at least a portion of the information to cease to be displayed on the display of the terminal.

31. A method as defined in claim 30, wherein determining that the proximity condition is satisfied comprises obtaining an indication of the clinician being within a first predetermined distance from the terminal, and determining that the remoteness condition is satisfied comprises obtaining an indication of the clinician not being within a second predetermined distance from the terminal.

32. A method as defined in claim 31, wherein the first predetermined distance is different from the second predetermined distance.

33. A method as defined in claim 30, wherein determining that the proximity condition is satisfied comprises obtaining an indication of the clinician being within a first predetermined distance from the terminal for a first predetermined period of time, and determining that the remoteness condition is satisfied comprises obtaining an indication of the clinician not being within a second predetermined distance from the terminal for a second predetermined period of time.

34. A method as defined in claim 33, wherein the first predetermined distance is different from the second predetermined distance.

35. A method as defined in claim 33, wherein the first predetermined period of time is different from the second predetermined period of time.

36. A method as defined in claim 34, wherein the first predetermined period of time is different from the second predetermined period of time.

37. A method as defined in claim 1, further comprising:

determining whether the clinician is positioned relative to the terminal such that a remoteness condition is satisfied based at least in part on the data regarding the wirelessly detectable tag;

responsive to the remoteness condition being satisfied, terminating the session for the clinician between the terminal and the healthcare information system.

38. A method as defined in claim 37, wherein the session for the clinician between the terminal and the healthcare information system causes information to be held in a holding location of the healthcare information system, wherein terminating the session for the clinician between the terminal and the healthcare information system comprises deleting from the holding location the information held therein.

39. A method as defined in claim 37, wherein determining that the proximity condition is satisfied comprises obtaining an indication of the clinician being within a first predetermined distance from the terminal, and determining that the remoteness condition is satisfied comprises obtaining an indication of the clinician not being within a second predetermined distance from the terminal.

40. A method as defined in claim 39, wherein the first predetermined distance is different from the second predetermined distance.

41. A method as defined in claim 37, wherein determining that the proximity condition is satisfied comprises obtaining an indication of the clinician being within a first predetermined distance from the terminal for a first predetermined period of time, and determining that the remoteness condition is satisfied comprises obtaining an indication of the clinician not being within a second predetermined distance from the terminal for a second predetermined period of time.

42. A method as defined in claim 41, wherein the first predetermined distance is different from the second predetermined distance.

43. A method as defined in claim 41, wherein the first predetermined period of time is different from the second predetermined period of time.

44. A method as defined in claim 42, wherein the first predetermined period of time is different from the second predetermined period of time.

45. A method as defined in claim 1, further comprising:

determining whether the clinician is positioned relative to the terminal such that a remoteness condition is satisfied based at least in part on the data regarding the wirelessly detectable tag;

responsive to the remoteness condition being satisfied, suspending the session for the clinician between the terminal and the healthcare information system.

46. A method as defined in claim 45, wherein the session for the clinician between the terminal and the healthcare information system causes session-related information contained in the healthcare information system to be accessible via the terminal, wherein suspending the session for the clinician between the terminal and the healthcare information system comprises disabling access to the session-related information via the terminal.

47. A method as defined in claim 46, wherein the session for the clinician between the terminal and the healthcare information system causes the session-related information to be displayed on a display of the terminal, wherein disabling access to the session-related information via the terminal comprises causing at least a portion of the session-related information to cease to be displayed on the display of the terminal.

48. A method as defined in claim 45, wherein determining that the proximity condition is satisfied comprises obtaining an indication of the clinician being within a first predetermined distance from the terminal, and determining that the remoteness condition is satisfied comprises obtaining an indication of the clinician not being within a second predetermined distance from the terminal.

49. A method as defined in claim 48, wherein the first predetermined distance is different from the second predetermined distance.

50. A method as defined in claim 45, wherein determining that the proximity condition is satisfied comprises obtaining an indication of the clinician being within a first predetermined distance from the terminal for a first predetermined period of time, and determining that the remoteness condition is satisfied comprises obtaining an indication of the clinician not being within a second predetermined distance from the terminal for a second predetermined period of time.

51. A method as defined in claim 50, wherein the first predetermined distance is different from the second predetermined distance.

52. A method as defined in claim 50, wherein the first predetermined period of time is different from the second predetermined period of time.

53. A method as defined in claim 51, wherein the first predetermined period of time is different from the second predetermined period of time.

54. A method as defined in claim 45, wherein the proximity condition is a first proximity condition, said method further comprising:

determining whether the clinician is positioned relative to the terminal such that a second proximity condition is satisfied based at least in part on the data regarding the wirelessly detectable tag;

responsive to the second proximity condition being satisfied, resuming the session for the clinician between the terminal and the healthcare information system.

55. A method as defined in claim 54, wherein the session for the clinician between the terminal and the healthcare information system causes session-related information contained in the healthcare information system to be accessible via the terminal, wherein suspending the session for the clinician between the terminal and the healthcare information system comprises disabling access to the session-related information via the terminal, and wherein resuming the session for the clinician between the terminal and the healthcare information system comprises enabling access to the session-related information via the terminal.

56. A method as defined in claim 54, wherein the session for the clinician between the terminal and the healthcare information system causes the session-related information to be displayed on a display of the terminal, wherein disabling access to the session-related information via the terminal comprises causing at least a portion of the session-related information to cease to be displayed on the display of the terminal, and wherein resuming the session for the clinician between the terminal and the healthcare information system comprises causing the at least a portion of the session-related information to be once again displayed on the display of the terminal.

57. A method as defined in claim 54, wherein determining that the first proximity condition is satisfied comprises obtaining an indication of the clinician being within a first predetermined distance from the terminal, determining that the remoteness condition is satisfied comprises obtaining an indication of the clinician not being within a second predetermined distance from the terminal, and determining that the second proximity condition is satisfied comprises obtaining an indication of the clinician being within a third predetermined distance from the terminal.

58. A method as defined in claim 57, wherein at least two of the first predetermined distance, the second predetermined distance, and the third predetermined distance are different from each other.

59. A method as defined in claim 54, wherein determining that the first proximity condition is satisfied comprises obtaining an indication of the clinician being within a first predetermined distance from the terminal for a first predetermined period of time, determining that the remoteness condition is satisfied comprises obtaining an indication of the clinician not being within a second predetermined distance from the terminal for a second predetermined period of time, and determining that the second proximity condition is satisfied comprises obtaining an indication of the clinician being within a third predetermined distance from the terminal for a third predetermined period of time.

60. A method as defined in claim 59, wherein at least two of the first predetermined distance, the second predetermined distance, and the third predetermined distance are different from each other.

61. A method as defined in claim 59, wherein at least two of the first predetermined period of time, the second predetermined period of time, and the third predetermined period of time are different from each other.

62. A method as defined in claim 60, wherein at least two of the first predetermined period of time, the second predetermined period of time, and the third predetermined period of time are different from each other.

63. A method as defined in claim 1, wherein the wirelessly detectable tag is one of an active radio frequency identification tag, a semi-active radio frequency identification tag, and a passive radio frequency identification tag.

64. A method as defined in claim 1, wherein the wirelessly detectable tag is an optical frequency identification tag.

65. A method as defined in claim 1, wherein the wirelessly detectable tag is an ultrasonic acoustic pulsing identification tag.

66. A method as defined in claim 63, wherein the wirelessly detectable tag comprises a fingerprint reader.

67. A method as defined in claim 64, wherein the wirelessly detectable tag comprises a fingerprint reader.

68. A method as defined in claim 65, wherein the wirelessly detectable tag comprises a fingerprint reader.

69. A method as defined in claim 1, wherein the clinician is one of a physician, a nurse, a laboratory technician, a radiologist, a pharmacist, and an orderly.

70. A method as defined in claim 1, wherein determining that the proximity condition is satisfied comprises obtaining an indication of (1) the clinician being within a predetermined distance from the terminal and (2) the terminal being within a field of view of the clinician.

71. A method as defined in claim 70, wherein obtaining an indication of the terminal being within a field of view of the clinician comprises determining the field of view of the clinician based at least in part on the data regarding the wirelessly detectable tag.

72. A method as defined in claim 71, wherein the field of view of the clinician is determined based at least in part on an intensity of a signal derived from the data regarding the wirelessly detectable tag.

73. A method as defined in claim 71, wherein the field of view of the clinician is determined based at least in part on a velocity vector of the clinician derived from the data regarding the wirelessly detectable tag.

74. A method as defined in claim 1, wherein the terminal is a fixed terminal.

75. A method as defined in claim 1, wherein the terminal is a mobile terminal.

76. A method as defined in claim 75, wherein the mobile terminal is a hand-held device.

77. A system for managing access to a healthcare information system of a healthcare establishment communications network, the healthcare establishment communications network comprising a plurality of terminals, said system comprising:

a first functional entity adapted to determine, based at least in part on data regarding wirelessly detectable tags associated with respective clinicians, when a particular one of the clinicians is positioned relative to a particular one of the terminals such that a proximity condition is satisfied for the particular clinician and the particular terminal;

a second functional entity adapted to enable receipt of authentication data from the particular clinician in response to the proximity condition being satisfied for the particular clinician and the particular terminal; and

a third functional entity adapted to establish a session for the particular clinician between the terminal and the healthcare information system in response to receipt of authentication data from the particular clinician and if the received authentication data corresponds to pre-determined authentication data associated with the particular clinician.

78. The system defined in claim 77, further comprising:

a plurality of detectors adapted to receive signals from the wirelessly detectable tags associated with the clinicians and to generate therefrom the data regarding the wirelessly detectable tags associated with the clinicians.

79. The system defined in claim 78, wherein the detectors are respectively associated with the terminals.

80. The system defined in claim 79, wherein the data regarding the wirelessly detectable tag associated with a given one of the clinicians including the particular clinician, and generated by a given one of the detectors including the detector associated with the particular terminal, comprises a tag identifier for the given clinician and an indication of a distance of the given clinician from the given detector.

81. The system defined in claim 80, wherein the indication of a distance between the particular clinician and the detector associated with the particular terminal is generated on a basis of signal travel time between the detector associated with the particular terminal and the tag associated with the particular clinician.

82. The system defined in claim 80, wherein the indication of a distance between the particular clinician and the detector associated with the particular terminal is generated on a basis of a signal strength being received from the wirelessly detectable tag associated with the particular clinician.

83. The system defined in claim 80, wherein the data regarding the wirelessly detectable tag associated with the particular clinician further comprises the authentication data received from the particular clinician.

84. The system defined in claim 83, wherein the authentication data is representative of a biometric feature.

85. The system defined in claim 84, wherein the tag comprises a fingerprint scanner capable of accepting a finger and producing the authentication data therefrom.

86. The system defined in claim 77, further comprising:

a plurality of detectors adapted to receive signals from the wirelessly detectable tags associated with the clinicians, to detect the presence of identifiers of said tags in the received signals and to determine information indicative of a distance between said tags and individual ones of the detectors;

a location correlation engine adapted to process (1) the information indicative of a distance between the tag associated with the particular clinician and a subset of the detectors and (2) location data regarding the subset of the detectors, to generate therefrom location data regarding the particular clinician.

87. The system defined in claim 86, wherein the location data regarding the particular clinician corresponds to the data regarding the wirelessly detectable tag associated with the particular clinician on which the determination by the first functional entity is based.

88. The system defined in claim 87, wherein the terminals have a certain distribution throughout the healthcare establishment network, and wherein the detectors have a distribution throughout the healthcare establishment network that is different from the distribution of the terminals.

89. The system defined in claim 87, wherein the determination by the first functional entity is further based on location data regarding the particular terminal.

90. The system defined in claim 89, wherein the particular terminal is a fixed-wire terminal.

91. The system defined in claim 90, wherein the fixed-wire terminal has a pre-determined location and wherein the location data regarding the particular terminal corresponds to the pre-determined location of the fixed-wire terminal.

92. The system defined in claim 89, wherein the particular terminal is associated with a wirelessly detectable tag connected thereto.

93. The system defined in claim 92, wherein the detectors are further adapted to receive signals from the wirelessly detectable tag associated with the particular terminal, to detect the presence of an identifier of said tag in the received signals and to determine information indicative of a distance between said tag and individual ones of the detectors.

94. The system defined in claim 93, the location correlation engine being further adapted to process (1) the information indicative of a distance between the wirelessly detectable tag associated with the particular terminal and a second subset of the detectors and (2) location data regarding the second subset of the detectors, to generate therefrom the location data regarding the particular terminal.

95. The system defined in claim 94, wherein the particular terminal is a mobile terminal.

96. The system defined in claim 86, wherein the detectors are further adapted to detect the presence of the authentication data associated with the particular clinician in the signals received from the wirelessly detectable tag associated with the particular clinician.

97. The system defined in claim 96, wherein the authentication data is representative of a biometric feature.

98. The system defined in claim 97, wherein the tag comprises a fingerprint scanner capable of accepting a finger and producing the authentication data therefrom.

99. The system defined in claim 77, wherein the proximity condition is satisfied when the particular clinician is detected to be within a predetermined distance of the particular terminal.

100. The system defined in claim 77, wherein the proximity condition is satisfied when the particular clinician is detected to be within a predetermined distance of the particular terminal for a predetermined period of time.

101. The system defined in claim 77, wherein the proximity condition is satisfied when (1) the particular clinician is detected to be within a predetermined distance of the particular terminal for a predetermined period of time and (2) the particular terminal is detected to be within a field of view of the particular clinician.

102. The system defined in claim 77, wherein the third functional entity is further adapted to display information on a display of the particular terminal, wherein the first functional entity is further adapted to determine, based at least in part on the data regarding the wirelessly detectable tag associated with the particular clinician, when the particular clinician is positioned relative to the particular terminal such that a remoteness condition is satisfied for the particular clinician and the particular terminal, and wherein the third functional entity is further adapted to cause at least a portion of the information to cease to be displayed on the display of the particular terminal in response to the remoteness condition being satisfied for the particular clinician and the particular terminal.

103. The system defined in claim 102, wherein the proximity condition is satisfied when the particular clinician is detected to be within a first predetermined distance of the particular terminal and wherein the remoteness condition is satisfied when the particular clinician is detected to be not within a second predetermined distance of the particular terminal.

104. The system defined in claim 102, wherein the proximity condition is satisfied when the particular clinician is detected to be within a first predetermined distance of the particular terminal for a first predetermined period of time and wherein the remoteness condition is satisfied when the particular clinician is detected to be not within a second predetermined distance of the particular terminal for a second predetermined period of time.

105. The system defined in claim 102, wherein the proximity condition is satisfied when (1) the particular clinician is detected to be within a first predetermined distance of the particular terminal for a first predetermined period of time and (2) the particular terminal is detected to be within a field of view of the particular clinician, and wherein the remoteness condition is satisfied when either (1) the particular clinician is detected to be not within a second predetermined distance of the particular terminal for a second predetermined period of time or (2) the particular terminal is detected not to be within the field of view of the particular terminal.

106. The system defined in claim 102, wherein the third functional entity is further adapted to cause the session to be suspended in response to the remoteness condition being satisfied for the particular clinician and the particular terminal.

107. A computer-readable storage medium comprising a program element for execution by a computing device to manage access to a healthcare information system of a healthcare establishment communications network, the program element including:

computer-readable program code for determining, based at least in part on data regarding wirelessly detectable tags associated with respective clinicians, when a particular one of the clinicians is positioned relative to a particular one of the terminals such that a proximity condition is satisfied for the particular clinician and the particular terminal;

computer-readable program code for enabling receipt of authentication data from the particular clinician in response to the proximity condition being satisfied for the particular clinician and the particular terminal; and

computer-readable program code for establishing a session for the particular clinician between the terminal and the healthcare information system in response to receipt of authentication data from the particular clinician and if the received authentication data corresponds to pre-determined authentication data associated with the particular clinician.