Hospital bed exit detection, height limiting and tare weight recalibrating systems and methods

• US 10,497,247 B2
• Filed: 11/20/2017
• Issued: 12/03/2019
• Est. Priority Date: 11/20/2017
• Status: Active Grant

• Current Assignee: Umano Medical Inc.
• Original Assignee: Umano Medical Inc.
• Inventors: Bolduc, Steve, St-Pierre, Etienne, Moreno, David, Mercier, Gabriel, Berthelot, Esther
• Primary Examiner(s): Nguyen, Tai T
• Application Number:
  US15/818,248
• Publication Number:
  US 20190156645A1
• Time in Patent Office: 743 Days
• Field of Search: 3405734, 3405731, 340 51, 340562, 340664, 340666, 340667, 600300, 600483, 600484
• CPC Class Codes: A61G 2203/20 Displays or monitors
• CPC Class Codes: A61G 2203/30 characterised by sensor means
• CPC Class Codes: A61G 2203/44 for weight
• CPC Class Codes: A61G 7/005 tiltable around transverse horizontal axis, e.g. for Trendelenburg position rocking beds for physical therapy A61H1/003; hanging patient inclined downwardly for drawing him out A61H2203/0493
• CPC Class Codes: A61G 7/05 Parts, details or accessories of beds devices for prevention against falling out A47C21/08, A47D7/00 ; mattresses A47C27/00
• CPC Class Codes: A61G 7/0527 Weighing devices
• CPC Class Codes: G08B 21/0461 integrated or attached to an item closely associated with the person but not worn by the person, e.g. chair, walking stick, bed sensor
• CPC Class Codes: G08B 21/22 responsive to presence or absence of persons
• 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 40/63 for local operation
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems

Abstract

A method for detecting an exit of a patient from a hospital bed, the method comprising: detecting a presence of the patient on the bed; upon detection of the patient on the bed, monitoring an indication that the patient has moved from a predetermined patient area on a patient receiving surface of the bed to outside the predetermined patient area; upon detection that the patient has moved outside the predetermined patient area, activating a bed alarm to indicate to a user that an exit of the patient from the hospital bed has been detected. There is also provided a system for detecting an exit of a patient from a hospital bed. There is further provided a method for limiting a height of a hospital bed and a method for recalibrating a tare weight condition of a hospital bed.

Claims

1. A method for detecting an exit of a patient from a hospital bed, the method comprising:

detecting a presence of the patient on a patient receiving surface of the bed;

upon detection of the presence the patient on the patient receiving surface, automatically monitoring the presence of the patient within a predetermined patient area on the patient receiving surface;

detecting that the patient has moved from the predetermined patient to outside the predetermined patient area; and

upon said detecting that the patient has moved outside the predetermined patient area, activating a bed alarm, thereby indicating to a user that an exit of the patient from the hospital bed has been detected.

2. The method as claimed in claim 1, wherein detecting the presence of a patient on the patient receiving surface of the bed comprises:

measuring a weight of the patient received on the patient receiving surface of the bed using a sensing assembly operatively connected to the bed;

receiving an indication from the weight sensing assembly that the patient is received on the patient receiving surface of the bed.

3. The method as claimed in claim 2, wherein detecting the presence of a patient on the patient receiving surface of the bed comprises:

measuring a weight of the patient received on the patient receiving surface of the bed above a predetermined weight threshold using the sensing assembly operatively connected to the bed;

receiving an indication from the weight sensing assembly that the patient is received on the patient receiving surface of the bed.

4. The method as claimed in claim 3, wherein the predetermined weight threshold is 32 kg.

5. The method as claimed in claim 1, further comprising:

after said detecting that the patient has moved from the predetermined patient area to outside the predetermined patient area and further upon receiving a pause command, suspending said detecting that the patient has moved from the predetermined patient area to outside the predetermined patient area.

6. The method as claimed in claim 5, wherein suspending said detecting that the patient has moved from the predetermined patient area to outside the predetermined patient area comprises:

suspending said detecting that the patient has moved from the predetermined patient area to outside the predetermined patient area for a predetermined pause time.

7. The method as claimed in claim 6, further comprising:

displaying a time indicative of an amount of time remaining before expiration of the predetermined pause time.

8. The method as claimed in claim 7, further comprising:

increasing the amount of time remaining before expiration of the predetermined pause time by a predetermined time increment.

9. A bed exit detection system for a hospital bed, the hospital bed including a patient receiving surface, the system comprising:

a weight sensing assembly operatively connected to the bed to measure a weight of a patient received on the patient receiving surface of the bed;

a patient location sensor operatively connected to the patient receiving surface, the patient location sensor being configured for detecting a presence of the patient in a predetermined patient area on the patient receiving surface of the bed;

a user interface for receiving inputs from a user;

a display for providing visual indications to the user;

a bed exit alarm configured for providing an indication to a user that an exit of a patient from the patient receiving surface is detected;

a processing unit operatively connected to the weight sensing assembly, the patient location sensor, the user interface, the display and the bed exit alarm, the processing unit being configured to receive from the weight sensing assembly an indication that the patient is received on the patient receiving surface of the bed, upon receipt of the indication that the patient is received on the patient receiving surface of the bed, to automatically monitor the presence of the patient in the predetermined patient area on the patient receiving surface, to receive from the patient location sensor an indication that the patient has moved from the predetermined patient area on the patient receiving surface to outside the predetermined patient area, thereby indicating an exit of the patient from the bed, and for activating the bed exit alarm when the exit of the patient from the bed is detected.

10. The system as claimed in claim 9, wherein the user interface and the display include a common touchscreen.

11. The system as claimed in claim 10, wherein the predetermined weight threshold is 32 kg.

12. The system as claimed in claim 9, wherein the measuring unit is configured for measuring the weight of the patient received on the patient receiving surface of the bed above a predetermined weight threshold and wherein the processing unit is configured for receiving an indication from the weight sensing assembly that the patient is received on the patient receiving surface of the bed.

13. The system as claimed in claim 9, wherein the user interface is configured for the user to input a pause command and the processing unit is configured for receiving the pause command from the interface, and wherein the processing unit is configured for suspending said detecting that the patient has moved from the predetermined patient area to outside the predetermined patient area upon receiving the pause command from the interface.

14. The system as claimed in claim 13, wherein the processing unit is configured for suspending said detecting that the patient has moved from the predetermined patient area to outside the predetermined patient area for a predetermined pause time.

15. The system as claimed in claim 14, wherein the processing unit is further configured for displaying on the display a time indicative of an amount of time remaining before expiration of the predetermined pause time.

16. The system as claimed in claim 15, wherein the user interface is configured for the user to input a time increase command to increase of the amount of time remaining before expiration of the predetermined pause time and the processing unit is configured for receiving the time increase command, and wherein the processing unit is configured for increasing the amount of time remaining before expiration of the predetermined pause time upon receiving the time increase command.

17. The system as claimed in claim 16, wherein the user interface and the processing unit are configured to increase of the amount of time remaining before expiration of the predetermined pause time by a predetermined time increment.