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Pre-Grant Publication Number: 20110125514

System and method of patient destination prediction

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Prior Art Detail

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#1255Implantable Homing Device

Applies to Claims 1,10,11,12,14,15,16,18,19,2,20,3,4,5,6,7,9

Submitted by: Matthew ZehrerLast updated: almost 2 years ago

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Summary / Description

Summary / Description

A new apparatus for location and monitoring of humans has been developed The device employs a unique programmable signal generator and detection system to locate and monitor the movement of individuals It additionally utilizes a physiological monitoring system to signal a warning for the necessity for immediate help The device is small enough to be implanted in young children as well as adults The power supply and signal generator are designed to function at a low duty cycle for prolonged periods before recharging

Basic Information

Type of Prior Art	Issued Patents - US

Country	United States of America

Patent/Application #	4706689

Kind Code	United States (US) - United STATES Patent - A

Patentee Name	Man

Relevant Pages, Columns, or Lines	Col 6, ln 5-22

URL

Filing Date	January 8, 1987

Additional Information

Notes / To Do

Notes

Excerpt

Excerpt

In FIG 2 is a schematic of the method utilized to and locate the subscriber The implantable homing device 62 located under the skin behind the ear out a transmission pulse 65 which is constantly by at least 3 towers 68 69 and 70 in different 71 72 and 73 Since the coordinates of the three are known the subscriber can be located by well triangulation means with little error All of the and locations can be done by a computer at monitoring station 76 A succession of points gathered in this manner can be plotted to trace the subscriber's movements a very helpful technique in locating the victims or monitoring the parole or house arrest individuals Furthermore as an individual passes one cell to another the monitoring can likewise be from one tower to another as is already the of operation in the cellular phone network

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Claims

A method of predicting patient destination, the method comprising:defining a telemetry coverage area with at least one antenna;

deriving a location of a monitored patient from a signal received by the at least one antenna;

recording over time the derived location in a database;

calculating, with a processor operating as a location services computer, a patient trajectory and speed of the monitored patient from the derived location and a previously received location;

comparing, with the location services computer, the location, trajectory, and speed of the monitored patient to historical patient movement trends recorded in the database; and

creating, with the processor, a prediction of patient destination.

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The method of Claim 1, further comprising presenting the prediction of patient destination on a graphical display.

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The method of Claim 2 wherein the prediction of patient destination is presented as a probability of a specified patient destination.

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The method of Claim 3 wherein the prediction of patient destination is presented as a probability for each of a plurality of specified patient destinations.

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The method of Claim 3, further comprising:defining a specified patient destination of the plurality as outside the telemetry coverage area;

defining a probability indicative of an alarm;

initiating an alarm if the probability that the patient destination is a destination outside of the telemetry coverage area meets the probability indicative of an alarm.

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The method of Claim 3, wherein if no location of a monitored patient is received, the method further comprises:defining the location of the monitored patient as the last received location of the monitored patient; and

comparing the last received location, calculated trajectory, and calculated speed, to location information from the database, the location information indicative of a destination outside of the telemetry coverage area; and

creating a prediction of a patient destination outside of the telemetry coverage area.

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The method of Claim 6, further comprising:dispatching a clinician to the predicted patient destination outside of the telemetry coverage area;

recovering the monitored patient at an actual destination outside of the telemetry coverage area; and

recording the actual destination outside of the telemetry coverage area as location information in the database.

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The method of Claim 8, further comprising:recording location, trajectory, and speed for a plurality of patients;

using the recorded location, trajectory, and speed from the plurality of patients to predict the destination of the monitored patient.

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The method of Claim 9, wherein the recorded location, trajectory, and speed comprises previously recorded values of location, trajectory, and speed for the monitored patient.

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The method of Claim 9, further comprising:dividing the telemetry coverage area into a plurality of destination regions; and

predicting probability that the monitored patient will enter each of the destination regions.

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A method of predicting a destination of a patient, the method comprising:defining a telemetry coverage area comprising at least one antenna;

continuously receiving a patient telemetry signal with at least one antenna of the telemetry coverage area;

continuously receiving a patient location signal with at least one antenna of the telemetry coverage area;

deriving a patient location from the received patient location signal;

computing a patient trajectory and a patient speed from the derived patient location;

recording the patient location, patient trajectory, and patient speed in a database comprising previously recorded patient locations, patient trajectories, and patient speeds;

comparing the patient location, patient trajectory, and patient speed to the first database to correlate the patient location, patient trajectory, and patient speed to previously recorded patient locations, trajectories, and speeds; and

calculating a probability that the patient will move to a specified destination.

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The method of Claim 12, wherein the previously recorded patient locations, patient trajectories, and patient speeds comprise those previously recorded from the patient.

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The method of Claim 13, wherein in the comparison of the patient location, trajectory, and speed to the previously recorded patient locations, trajectories, and speeds weights the patient's own previously recorded patient locations, trajectories, and speeds over those of the plurality of patients.

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A system for predictive warning of telemetry signal dropout, the system comprising:a remote unit worn by a patient, the remote unit transmits location information and telemetry information;

a plurality of telemetry receivers in a telemetry coverage area that receive the transmitted location information and telemetry information;

a location services computer that receives the location information and computes the location of the patient, the speed of the patient, and the trajectory of the patient;

a patient location database that records the computed location, speed, and trajectory of the patient, and records location, speed, and trajectory from a plurality of patients in the telemetry coverage area;

a location prediction computer that compares the computed location, speed, and trajectory of the patient to the locations, speeds, and trajectories stored on the database to predict a patient destination and produces an alarm if the patient destination is outside of the telemetry coverage area; and

a graphical display that receives and presents the patient destination and receives and presents the alarm.

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The system of Claim 17 wherein the telemetry coverage area is defined in the location prediction computer as a plurality of discrete destinations and the predicted patient destination is a probability that the patient will enter a specific destination of the plurality.

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The system of Claim 18 wherein the predicted patient destination is a probability that the patient will enter each of the plurality of discrete destinations.

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The system of Claim 19 wherein the predicted patient destination is a probability that the patient will enter each of the destinations adjacent a patient's current destination.

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