Hospital bed having alert light

• US 8,830,070 B2
• Filed: 08/28/2013
• Issued: 09/09/2014
• Est. Priority Date: 03/05/1999
• Status: Expired due to Fees

• Current Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Original Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Inventors: Dixon, Steven A., Menkedick, Douglas J., Jacques, William L. II, Findlay, James K., Wilker, John B. Jr., Osborne, Eugene E., Riley, Carl W.
• Primary Examiner(s): Nguyen, Hung T.
• Application Number:
  US14/012,114
• Publication Number:
  US 20140000032A1
• Time in Patent Office: 377 Days
• Field of Search: 340/573.4, 340/573.1, 340/539.12, 340/665, 340/666, 340/667, 340/686.1, 340/286.07, 128/900, 128/905, 128/903, 128/904, 600/300, 600/301, 600/306, 560/0, 561/0, 560/9, 561/1, 561/8, 562/4
• US Class Current: 340/573.1
• CPC Class Codes: A61B 5/1115 Monitoring leaving of a patient support, e.g. a bed or a wheelchair
• CPC Class Codes: A61G 2203/32 for force
• CPC Class Codes: A61G 2203/34 for pressure
• CPC Class Codes: A61G 2203/44 for weight
• CPC Class Codes: A61G 2203/72 for collision prevention
• CPC Class Codes: A61G 2203/723 Impact absorbing means, e.g. bumpers or airbags
• CPC Class Codes: A61G 7/015 divided into different adjustable sections, e.g. for Gatch position
• CPC Class Codes: A61G 7/018 Control or drive mechanisms
• 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 7/0506 Head or foot boards head or foot boards for comfort or ergonomics A47C19/022
• CPC Class Codes: A61G 7/0507 Side-rails
• CPC Class Codes: A61G 7/0509 sliding or pivoting downwards
• CPC Class Codes: A61G 7/0513 covering particular sections of the bed, e.g. one or more partial side-rail sections along the bed
• CPC Class Codes: A61G 7/0524 characterised by integrated accessories, e.g. bed control means, nurse call or reading lights
• CPC Class Codes: A61G 7/0527 Weighing devices
• CPC Class Codes: A61G 7/0528 Steering or braking devices for castor wheels
• CPC Class Codes: G01G 19/44 for weighing persons
• CPC Class Codes: G08B 21/18 Status alarms G08B21/02 takes precedence
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: H01R 13/6315 allowing relative movement between coupling parts, e.g. floating connection for coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures, H01R12/91 takes precedence

Abstract

A bed includes a frame, a controller coupled to the frame, and a patient position detection system coupled to the frame and coupled to the controller. The patient position detection system has multiple modes of operation of varying sensitivities for determining whether a person supported on the frame has moved by a sufficient amount to activate an alarm. The frame includes a plurality of barriers. An alert light is coupled to one of the barriers.

Claims

1. A bed comprising:

a frame including a lower frame and an upper frame movable relative to the lower frame,

at least one caster coupled to the lower frame,

a brake operable to brake and unbrake the at least one caster,

a controller coupled to the frame,

a patient position detection system which has multiple modes of operation for determining a location of a patient relative to the frame, each mode of the multiple modes of operation having a different sensitivity so that a different amount of patient movement is required before an alarm condition is considered to exist, and

an alert light coupled to the controller, wherein the frame includes a plurality of barriers extending upwardly from the upper frame, wherein the at least one alert light is coupled to one of the barriers, wherein the multiple modes of operation includes first, second, and third modes, the first mode of operation resulting in the alarm condition being considered to exist in the event the patient moves by a first amount, the second mode of operation resulting in the alarm condition being considered to exist in the event the patient moves by a second amount greater than the first amount, and the third mode of operation resulting in the alarm condition being considered to exist in the event patient moves a third amount greater than the second amount.

2. The bed of claim 1, wherein the controller receives signals from at least two sensors of different types and evaluates the signals to determine whether to change a state of the alert light based on the evaluation.

3. The bed of claim 2, wherein the patient position detection system includes the at least two sensors of different types.

4. The bed of claim 3, wherein a weight of a patient supported by the frame is determined based on signals generated by at least some of the at least two sensors of different types.

5. The bed of claim 4, further comprising a display coupled to the at least one barrier, the display being operable to display the weight of the patient.

6. The bed of claim 1, wherein the controller operates to change a state of the alert light in response to the upper frame not being in a desired position relative to the lower frame.

7. The bed of claim 1, wherein the controller operates to change a state of the alert light in response to the casters not being braked.

8. The bed of claim 1, wherein the barrier to which the alert light is coupled also carries at least one user input of the patient position detection system.

9. The bed of claim 8, wherein the at least one user input of the patient position detection system is usable to select a volume at which an audible alarm of the patient position detection sounds when the alarm condition associated with a selected one of the multiple modes of operation is detected.

10. The bed of claim 1, wherein the plurality of barriers includes a siderail and the alert light is coupled to the siderail.

11. The bed of claim 1, wherein the third mode of operation results in the alarm condition being considered to exist in the event the patient exits the frame.

12. The bed of claim 1, wherein the patient position detection system includes first, second, and third mode indicator lights which correspond to the first, second, and third modes of operation of the patient position detection system, respectively, and the indicator lights indicating which mode of the first, second, and third modes has been selected.

13. The bed of claim 1, wherein the alert light comprises a first alert light to indicate whether the upper frame is not lowered and a second alert light to indicate that the casters are not braked.

14. The bed of claim 13, further comprising at least one third light to indicate the selected mode of the multiple modes of the patient position detection system.

15. The bed of claim 14, further comprising at least one fourth light to indicate a volume at which an audible alarm of the patient position detection system is to sound in the event of the alarm condition of the selected mode of operation being detected.

16. The bed of claim 1, wherein the plurality of barriers includes a footboard and the footboard has user inputs that are usable to provide commands to the controller.

17. The bed of claim 16, wherein the footboard is decouplable from the remainder of the frame and the user inputs are decoupled from the controller when the footboard is decoupled from the remainder of the frame.

18. The bed of claim 1, wherein the controller is configured to send a signal that results in activation of at least one light spaced from the bed in response to the alarm condition being detected.

19. The bed of claim 1, wherein at least one of the barriers is a detachable barrier that is decoupleable from the remainder of the frame and the alert light remains with the frame when the detachable barrier is decoupled from the remainder of the frame.

20. The bed of claim 19, wherein the detachable barrier comprises at least one of a headboard and a footboard.