Home health parameter monitoring system

• US 5,967,975 A
• Filed: 11/13/1997
• Issued: 10/19/1999
• Est. Priority Date: 11/13/1997
• Status: Expired due to Term

• Current Assignee: Donald G. Ridgeway
• Original Assignee: Donald G. Ridgeway
• Inventors: Ridgeway, Donald G.
• Primary Examiner(s): GILBERT, SAMUEL G
• Application Number:
  US08/969,585
• Time in Patent Office: 705 Days
• Field of Search: 600/300, 600/301, 128/903, 128/904, 128/920, 128/921, 128/922, 128/923, 128/924, 340/870.09, 340/870.01, 340/870.16, 340/568, 340/309.25, 264/479.01, 264/569, 221/9, 221/15
• US Class Current: 600/300
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: G16H 40/67 for remote operation

Abstract

A system for the automated remote monitoring of home health parameter measurement activities to assure outpatient subscriber compliance with prescribed measurement schedule regimen, and to alarm-monitor for off-normal measurements. Typical monitored health parameters include blood pressure, blood glucose level, clotting factor, and the like. The system comprises at least one subscriber remote station which interfaces with a communications link, and a central monitoring station also interfaced with the link and operative to receive and analyze messages transmitted by the remote station. The preferred remote station embodiment transmits measurement outcome messages to the central station each time an interconnected health parameter measurement device generates a signal indicating whether the current measurement is "normal" or "in-alarm", based on uniquely specified alarm criteria. Central station hardware/software verifies receipt of such signals within each of the subscriber'"'"'s uniquely scheduled measurement time windows, and alerts alarm dispatchers to take pre-specified action if a scheduled measurement is forgotten. Dispatchers are also alerted if "in-alarm" measurements occur. Alternative remote station embodiments accept monitoring device signals corresponding to health parameter measured values. One alternative embodiment performs alarm monitoring in the remote station, another performs alarm monitoring at the central station. All embodiments provide subscribers with help-buttons to initiate transmission of alarm messages to the central station in event of emergency. Since the central station is alerted if any scheduled measurement is missed, no immobilizing emergency can go undetected longer than the maximum time between consecutively scheduled measurements.

Claims

1. A home health parameter monitoring system for monitoring a subscriber'"'"'s compliance with prescribed health parameter measurement activity regimen and for alarm-monitoring outcomes of said measurement activities via a communication link, comprising:

(a) a subscriber remote station for transmission of information corresponding to outcomes of said subscriber'"'"'s health parameter measurement activities via said communication link, said subscriber remote station further comprising;

a signal interface means operative to accept predetermined health parameter measurement outcome signals generated by at least one interconnected health parameter measurement device in response to said subscriber'"'"'s health parameter measurement activities, wherein said outcome signals signify whether said health parameter measurements are either "normal" or "in-alarm", as differentiated by predetermined alarm criteria, and

a communicator means operative to be activated by said measurement outcome signals to responsively transmit corresponding predetermined health parameter measurement outcome messages via said communication link,

(b) a central monitoring station for receiving said measurement outcome messages via said communication link, said central station further comprising;

a scheduler means operative to optionally preschedule periodic health parameter measurement time windows of the same or varying time width, one such time window for each of said subscriber'"'"'s prescribed health parameter measurements, each said time window bounded by a unique opening time and a unique closing time specified by or for said subscriber;

wherein said subscriber'"'"'s compliance with prescribed health parameter measurement schedules can be inferred if either a valid "normal" or "in-alarm" health parameter measurement outcome message is transmitted from said subscriber'"'"'s remote station to said central station via said communications link within each said prescheduled time window, and

an alarm processor means operative to alarm-monitor said outcome messages for identification of said "in-alarm" messages, and to assure that at least one valid "normal" or "in-alarm" health parameter measurement outcome message is transmitted from said subscriber'"'"'s remote station to said central station via said communication link within each said prescheduled time window, and

a data storage means operative to store a data record of predetermined format for each said measurement outcome message.

2. The home health parameter monitoring system of claim 1, wherein said subscriber remote station further includes at least one help-button switch, which when actuated causes said communicator means to become operative to responsively transmit a predetermined alarm message to said central station via said communication link.

3. The home health parameter monitoring system of claim 1, wherein said subscriber remote station further includes a miniature radio receiver which receives RF signals of predetermined frequency from at least one miniature wireless help-button RF transmitter, and responsively activates said communicator means to become operative to responsively transmit a predetermined alarm message to said central station via said communication link.

4. The home health parameter monitoring system of claim 1, wherein said subscriber remote station further includes an auxiliary signal interface means operative to accept predetermined signals from other types of health care equipment, and to responsively cause said communicator means to become operative to responsively transmit predetermined messages to said central station via said communication link.

5. A home health parameter monitoring system for monitoring a subscriber'"'"'s compliance with prescribed health parameter measurement activity regimen and for alarm-monitoring outcomes of said health parameter measurement activities via a communication link, comprising:

(a) a subscriber remote station for transmission of information corresponding to outcomes of said subscriber'"'"'s health parameter measurement activities via said communication link, said subscriber remote station further comprising;

a signal interface means operative to accept predetermined measurement signals generated by at least one interconnected health parameter measurement device in response to said subscriber'"'"'s health parameter measurement activities, wherein said measurement signals correspond to measured values of said health parameters, and

a limit-setting means operative to accept entry of predetermined limit settings differentiating between "normal" and "in-alarm" values for said measurements, and

a limit-check means operative to process said measurement signals to differentiate between "normal" and "in-alarm" measurements, and

a communicator means operative to be activated by said measurement signals to responsively transmit a predetermined "normal" or "in-alarm" health parameter measurement outcome message for each said measurement signal via said communication link,

(b) a central monitoring station for receiving said measurement outcome messages via said communication link, said central station further comprising;

a scheduler means operative to optionally preschedule periodic health parameter measurement time windows of the same or varying time width, one such time window for each of said subscriber'"'"'s prescribed health parameter measurements, each said time window bounded by a unique opening time and a unique closing time specified by or for said subscriber;

wherein said subscriber'"'"'s compliance with prescribed health parameter measurement schedules can be inferred if either a valid "normal" or "in-alarm" health parameter measurement outcome message is transmitted from said subscriber'"'"'s remote station to said central station via said communication link within each said prescheduled time window, and

an alarm processor means operative to alarm-monitor said outcome messages for identification of said "in-alarm" messages, and to assure that at least one valid "normal" or "in-alarm" health parameter measurement outcome message is transmitted from said subscriber'"'"'s remote station to said central station via said communication link within each said prescheduled time window, and

a data storage means operative to store a data record of predetermined format for each said measurement outcome message.

6. The home health parameter monitoring system of claim 5, wherein said subscriber remote station further includes at least one help-button switch, which when actuated causes said communicator means to become operative to responsively transmit a predetermined alarm message to said central station via said communication link.

7. The home health parameter monitoring system of claim 5, wherein said subscriber remote station further includes a miniature radio receiver which receives RF signals of predetermined frequency from at least one miniature wireless help-button RF transmitter, and responsively activates said communicator means to become operative to responsively transmit a predetermined alarm message to said central station via said communication link.

8. The home health parameter monitoring system of claim 5, wherein said subscriber remote station further includes an auxiliary signal interface means operative to accept predetermined signals from other types of health care equipment, and to responsively cause said communicator means to become operative to responsively transmit predetermined messages to said central station via said communication link.

9. A home health parameter monitoring system for monitoring a subscriber'"'"'s compliance with prescribed health parameter measurement activity regimen and for alarm-monitoring outcomes of said health parameter measurement activities via a communication link, comprising:

(a) a subscriber remote station for transmission of information corresponding to said subscriber'"'"'s health parameter measurements via said communication link, said subscriber remote station further comprising;

a signal interface means operative to accept predetermined measurement signals generated by at least one interconnected health parameter measurement device in response to said subscriber'"'"'s health parameter measurement activities, wherein said measurement signals correspond to said health parameter measured values, and

a communicator means operative to be activated by said measurement signals to responsively transmit predetermined health parameter measurement messages via said communication link,

(b) a central monitoring station for receiving said measurement messages via said communication link, said central station further comprising;

a limit-setting means operative to accept entries of predetermined limit settings differentiating between "normal" and "in-alarm" values for said health parameter measurements, and

a scheduler means operative to optionally preschedule periodic health parameter measurement time windows of the same or varying time width, one such time window for each of said subscriber'"'"'s prescribed health parameter measurements, each said time window bounded by a unique opening time and a unique closing time specified by or for said subscriber;

wherein said subscriber'"'"'s compliance with prescribed health parameter measurement schedules can be inferred if at least one valid health parameter measurement message is transmitted from said subscriber'"'"'s remote station to said central station via said communication link within each said prescheduled time window, and

an alarm processor means operative to alarm-monitor said measurement messages for identification of said "in-alarm" messages, and to assure that at least one valid health parameter measurement message is transmitted from said subscriber'"'"'s remote station to said central station via said communications link within each said prescheduled time window, and

a data storage means operative to store a data record of predetermined format for each said measurement message.

10. The home health parameter monitoring system of claim 9, wherein said subscriber remote station further includes at least one help-button switch, which when actuated causes said communicator means to become operative to responsively transmit a predetermined alarm message to said central station via said communication link.

11. The home health parameter monitoring system of claim 9, wherein said subscriber remote station further includes a miniature radio receiver which receives RF signals of predetermined frequency from at least one miniature wireless help-button RF transmitter, and responsively activates said communicator means to become operative to responsively transmit a predetermined alarm message to said central station via said communication link.

12. The home health parameter monitoring system of claim 9, wherein said subscriber remote station further includes an auxiliary signal interface means operative to accept predetermined signals from other types of health care equipment, and to responsively cause said communicator means to become operative to responsively transmit predetermined messages to said central station via said communication link.