Video monitoring system

• US 9,204,823 B2
• Filed: 09/23/2011
• Issued: 12/08/2015
• Est. Priority Date: 09/23/2010
• Status: Active Grant

• Current Assignee: Stryker Corporation
• Original Assignee: Stryker Corporation
• Inventors: Derenne, Richard A., DeLuca, Richard T., Wroblewski, Jason J., Dhall, Sanjay, Duan, Xiyu, Lowalekar, Vishal P.
• Primary Examiner(s): Perungavoor, Sath V
• Assistant Examiner(s): Le, Peter D
• Application Number:
  US13/242,022
• Publication Number:
  US 20120075464A1
• Time in Patent Office: 1,537 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2505/03 Intensive care
• CPC Class Codes: A61B 5/0013 Medical image data A61B1/00011, A61B6/56, A61B8/56 take precedence
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/0036 including treatment, e.g., using an implantable medical device, ablating, ventilating
• CPC Class Codes: A61B 5/1113 Local tracking of patients, e.g. in a hospital or private home
• CPC Class Codes: A61B 5/1115 Monitoring leaving of a patient support, e.g. a bed or a wheelchair
• CPC Class Codes: A61B 5/1117 Fall detection
• CPC Class Codes: A61B 5/112 Gait analysis
• CPC Class Codes: A61B 5/1123 Discriminating type of movement, e.g. walking or running A61B5/1116, A61B5/112 take precedence
• CPC Class Codes: A61B 5/1128 using image analysis A61B5/1127 takes precedence
• CPC Class Codes: A61B 5/6889 Rooms
• CPC Class Codes: A61B 5/6892 Mats
• CPC Class Codes: A61B 5/7445 Display arrangements, e.g. multiple display units
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: G01B 11/026 by measuring distance between sensor and object G01B11/0608 takes precedence
• CPC Class Codes: G06Q 50/22 Social work or social welfare, e.g. community support activities or counselling services
• CPC Class Codes: G06V 20/52 Surveillance or monitoring of activities, e.g. for recognising suspicious objects recognising microscopic objects G06V20/69
• CPC Class Codes: G06V 40/20 Movements or behaviour, e.g. gesture recognition recognition of facial expressions G06V40/16
• CPC Class Codes: G08B 21/043 detecting an emergency event, e.g. a fall
• CPC Class Codes: G08B 21/0476 Cameras to detect unsafe condition, e.g. video cameras
• CPC Class Codes: G08B 21/22 : responsive to presence or absence of persons
• CPC Class Codes: G08B 21/245 : Reminder of hygiene compliance policies, e.g. of washing hands
• 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: H04N 23/23 : from thermal infrared radiation
• CPC Class Codes: H04N 5/33 : Transforming infrared radiation cameras or camera modules for generating image signals from infrared radiation H04N23/20; circuitry of SSIS for transforming infrared radiation into image signals H04N25/20
• CPC Class Codes: H04N 7/185 : from a mobile camera, e.g. for remote control

Abstract

A monitoring system includes a camera adapted to capture images and output signals representative of the images. The camera may include one or more depth sensors that detect distances between the depth sensor and objects positioned within the field of view of the one or more cameras. A computer device processes the image signals and or depth signals from cameras and determines any one or more of the following: (a) whether a patient care protocol has been properly followed; (b) what condition a patient is in; (c) whether an infection control protocol has been properly followed; and (d) whether steps have been taken to reduce the risk of a patient from falling. Alerts may be issued if any conditions of importance are detected.

Claims

1. A monitoring system comprising:

a camera positioned within a room and adapted to capture images of the room and output image signals representative of said images, and

a computer device in communication with said camera and adapted to process said image signals to identify a cleaning instrument within the captured images by comparing the image signals with stored data corresponding to the cleaning instrument and to thereby monitor cleaning of the room and identify any portions of the room that are missed during the cleaning.

2. The system of claim 1 wherein said computer device determines whether a clinician in the room has cleaned his or her hands at a location within the room.

3. The system of claim 1 wherein said camera includes a depth sensing device adapted to detect the distance between the depth sensing device and objects positioned within a field of view of the camera.

11. The system of claim 1 wherein the computer device is further adapted to monitor movement of the cleaning instrument relative to a surface.

4. A monitoring system comprising:

a camera positioned within a room and adapted to capture images of the room and output image signals representative of said images, and

a computer device in communication with said camera and adapted to process said image signals to identify a bed within the captured images by comparing the image signals with stored data corresponding to the bed to determine whether a height of the bed is at its lowest height.

5. The system of claim 4 wherein said computer device determines when the patient has turned in the bed and issues an alert if a predetermined amount of time passes without the patient turning.

6. The system of claim 4 wherein said computer device determines an angle of a head portion of the bed with respect to horizontal and issues an alert if the angle is less than a predefined angle.

7. The system of claim 4 wherein said camera includes a depth sensing device adapted to detect the distance between the depth sensing device and objects positioned within a field of view of the camera.

8. A monitoring system comprising:

a camera positioned within a room and adapted to capture images of a bed with siderails positioned within the room, said camera further adapted to output image signals representative of said images;

a memory containing information about a shape of the siderails; and

a computer device in communication with said camera and said memory, said computer device adapted to process said image signals to identify the siderails within the captured images by comparing the image signals with the siderail shape information stored in the memory in order to determine whether the siderails on the bed are positioned in an up or down position.

9. The system of claim 8 wherein said computer device determines if any objects are within a path from the bed to a bathroom or a doorway out of the room.

10. The system of claim 8 wherein said camera includes a depth sensing device adapted to detect the distance between the depth sensing device and objects positioned within a field of view of the camera.