Patient monitoring system for bathroom

• US 9,098,993 B2
• Filed: 07/30/2014
• Issued: 08/04/2015
• Est. Priority Date: 08/02/2012
• Status: Active Grant

• Current Assignee: DRS Medcial Devices, LLC
• Original Assignee: DRS Medcial Devices, LLC
• Inventors: Reed, Donald N. Jr.
• Primary Examiner(s): Nguyen, Tai T
• Application Number:
  US14/447,390
• Publication Number:
  US 20140340227A1
• Time in Patent Office: 370 Days
• Field of Search: 340/521, 340/539.11, 340/539.23, 340/506, 340/541, 340/542, 340/548, 340/568, 702/150, 702/151
• US Class Current: 1/1
• CPC Class Codes: A61B 5/1115 Monitoring leaving of a patient support, e.g. a bed or a wheelchair
• CPC Class Codes: A61B 5/6889 Rooms
• CPC Class Codes: G08B 21/02 Alarms for ensuring the safety of persons
• CPC Class Codes: G08B 21/0469 Presence detectors to detect unsafe condition, e.g. infrared sensor, microphone G08B21/0476 takes precedence
• CPC Class Codes: G08B 21/22 responsive to presence or absence of persons

Abstract

A patient monitoring system adapted for use with a bathroom. The system includes a motion detection unit including a motion detection sensor and a first housing. The system also includes an alarm unit having an alarm device and a second housing. Control circuitry operably couples the motion detection sensor with the alarm device. The control circuitry is configured to activate the alarm device when the motion detection sensor detects motion. The system also includes a support structure removably mounted on the bathroom door wherein the support structure is adapted to support the first housing proximate the interior surface of the door and support the second housing proximate the exterior surface of the door. The motion detection sensor is positioned so that when a fall-risk patient begins to rise from the toilet, the alarm device will alert a caregiver outside the bathroom who may then assist the patient.

Claims

1. A patient monitoring system adapted for use with a bathroom having a toilet wherein a doorway provides entry into the bathroom and a door is moveably mounted in the doorway and wherein, when the door is in a closed position, the door has an interior surface facing into the bathroom and an opposing exterior surface facing away from the bathroom, the system comprising:

a motion detection unit including a motion detection sensor and a first housing supporting the motion detection sensor;

an alarm unit having an alarm device and a second housing supporting the alarm device;

control circuitry operably coupling the motion detection sensor with the alarm device, the control circuitry configured to activate the alarm device when the motion detection sensor detects motion; and

a support structure removably supportable on the door wherein the support structure is adapted to support the first housing proximate the interior surface of the door and support the second housing proximate the exterior surface of the door.

2. The system of claim 1 wherein the support structure has an engagement portion adapted to extend over and engage a top edge of the door and thereby mount the support structure on the door.

3. The system of claim 2 wherein the support structure further comprises first and second elongate members extending from opposite sides of the engagement portion whereby the first elongate member is positioned proximate the interior surface of the door and the second elongate member is positioned proximate the exterior surface of the door when the support structure is mounted on the door, the first housing being supported on the first elongate member and the second housing being supported on the second elongate member.

4. The system of claim 3 wherein the first elongate member defines a first axis and the first housing is axially repositionable on the first elongate member.

5. The system of claim 4 wherein the first housing is angularly repositionable about a yaw axis substantially parallel to the first axis.

6. The system of claim 4 wherein the second elongate member defines a second axis and the second housing is axially repositionable on the second elongate member.

7. The system of claim 4 wherein the second housing has a predefined installation position on the second elongate member.

8. The system of claim 3 wherein wiring extends between the first and second housings and the first and second elongate members each define a hollow interior for routing the wiring at least part of the distance between the first and second housings.

9. The system of claim 1 wherein the alarm unit further comprises a manually operated switch operably coupled with the control circuitry, the switch selectively activating and de-activating the system.

10. The system of claim 9 wherein the control circuitry is disposed in the second housing and each of the first and second housings have a removeable power source, the removable power source in the first housing powering the motion control sensor and the power source in the second housing powering the control circuitry and the alarm device.

11. The system of claim 10 wherein the alarm device is an LED light and the LED light is the sole alarm communication device.

12. A patient monitoring system adapted for use with a bathroom having a toilet wherein a doorway provides entry into the bathroom and a door is moveably mounted in the doorway and wherein, when the door is in a closed position, the door has an interior surface facing into the bathroom and an opposing exterior surface facing away from the bathroom, the system comprising:

a motion detection unit including a motion detection sensor and a first housing supporting the motion detection sensor;

an alarm unit having an alarm device and a second housing supporting the alarm device;

control circuitry operably coupling the motion detection sensor with the alarm device, the control circuitry configured to activate the alarm device when the motion detection sensor detects motion;

a manually operated switch supported on the second housing, the switch being operably coupled with the motion detection sensor and the control circuitry wherein the switch selectively activates and deactivates the system; and

a support structure removably supportable on the door, the support structure including an engagement portion adapted to extend over and engage a top edge of the door and thereby mount the support structure on the door, the support structure further including first and second elongate members extending from opposite sides of the engagement portion whereby the first elongate member is positionable proximate the interior surface of the door and the second elongate member is positionable proximate the exterior surface of the door when the support structure is mounted on the door, the first housing being supportable on the first elongate member proximate the interior surface of the door and the second housing being supportable on the second elongate member proximate the exterior surface of the door, wherein the first elongate member defines a first axis and the first housing is axially repositionable on the first elongate member and wherein the first housing is angularly repositionable on the first elongate member about a yaw axis substantially parallel to the first axis; and

wherein the motion detection sensor defines a detection zone, the motion detection sensor being positionable to extend the detection zone over the toilet whereby a patient seated on the toilet will be located below the detection zone without intruding into the detection zone, and, when the patient rises from the toilet, the patient will enter the detection zone thereby activating the alarm device whereby a caregiver positioned outside the bathroom proximate the door with the door in the closed position will be notified by the alarm device.

13. The system of claim 12 wherein the control circuitry is disposed in the second housing and each of the first and second housings have a removeable power source, the removable power source in the first housing powering the motion control sensor and the power source in the second housing powering the control circuitry and the alarm device, wherein the alarm device is an LED light, and wherein wiring extends between the first and second housings and the first and second elongate members each define a hollow interior for routing the wiring at least part of the distance between the first and second housings.

14. The system of claim 12 further comprising a plurality of shim members selectively attachable to the first housing and positionable between the first housing the interior surface of the door to thereby define an angular position of first housing about the yaw axis, each of the plurality of shim members having a different configuration whereby each of the plurality of shim members defines a different angular position for the first housing about the yaw axis.

15. A method of monitoring a patient in a bathroom having a toilet wherein a door is moveably mounted in a doorway, the doorway providing access to the bathroom when the door is in an open position and the door blocks access through the doorway when the door is in a closed position, and wherein, when the door is in the closed position, the door has an interior surface facing the bathroom and an exterior surface facing away from the bathroom, the method comprising:

mounting a support structure on the door;

attaching a first housing to the support structure proximate the interior surface of the door, the first housing supporting a motion detector sensor;

positioning the motion detector sensor wherein the motion detection sensor defines a detection zone extending over the toilet and having a lower boundary spaced above the toilet wherein the patient seated on the toilet will be located below the detection zone without intruding into the detection zone and when the patient rises from the toilet the patient will enter the detection zone;

attaching a second housing to the support structure proximate the exterior surface of the door, the second housing supporting an alarm device; and

providing control circuitry to operably couple the motion detection sensor with the alarm device, the control circuitry configured to activate the alarm device when the motion detection sensor detects motion whereby a caregiver positioned outside the bathroom proximate the door with the door in the closed position will be notified by the alarm device when the patient rises from the toilet.

16. The method of claim 15 wherein the step of positioning the motion detector sensor includes selectively adjusting a vertical position of the motion detection sensor on the support structure.

17. The method of claim 15 wherein the step of positioning the motion detector sensor includes selectively adjusting an angular position of the motion detection sensor about a vertically extending yaw axis.

18. The method of claim 15 further comprising the step of selectively activating and de-activating the motion detection sensor, the alarm device and the control circuitry with a switch supported on the second housing.

19. The method of claim 15 wherein the step of mounting a support structure on the door includes engaging a portion of the support structure with a top edge of the door to mount the support structure on the door.

20. The method of claim 19 further comprising the step of extending wiring between the first and second housings to operably couple the motion detection sensor with the alarm device and wherein the wiring is extended over the top edge of the door.