Bed with a plurality of air therapy devices, having control modules and an electrical communication network

• US 5,630,238 A
• Filed: 08/04/1995
• Issued: 05/20/1997
• Est. Priority Date: 08/04/1995
• Status: Expired due to Term

• Current Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Original Assignee: Hill-Rom Incorporated (Baxter International Inc.)
• Inventors: Branson, Gregory W., Meyer, Eric R., Kramer, Kenneth L., Ulrich, David J., Brooke, Jason C., Weismiller, Matthew W., Thomas, James M. C., Butterbrodt, Jay T.
• Primary Examiner(s): Grosz, Alexander
• Application Number:
  US08/511,542
• Time in Patent Office: 655 Days
• Field of Search: 5/600, 5/613, 5/616, 5/607, 5/624, 5/614, 5/615, 5/617, 5/618, 5/621, 5/713, 5/714, 5/715
• US Class Current: 5/600
• CPC Class Codes: A61G 7/001 with means for turning-over the patient
• 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 7/018 Control or drive mechanisms
• CPC Class Codes: A61G 7/053 Aids for getting into, or out of, bed, e.g. steps, chairs, cane-like supports
• CPC Class Codes: A61G 7/05715 with modular blocks, or inserts, with layers of different material
• CPC Class Codes: A61G 7/05769 with inflatable chambers
• CPC Class Codes: A61G 7/1021 Inflatable cushions
• CPC Class Codes: A61G 7/16 converting a lying surface into a chair

Abstract

A bed includes a base frame, a deck coupled to the base frame, an electrical communication network, an air handling unit mounted on the base frame, a plurality of air therapy devices located on the bed, and a plurality of control modules. Each control module includes a connector for coupling a corresponding air therapy device to the air handling unit and to the electrical communication network. Each control module also includes a controller for operating the corresponding air therapy device with the air handling unit based on command signals received from the electrical communication network.

Claims

1. A bed comprising:

a base frame;

a deck coupled to the base frame;

an electrical communication network;

an air handling unit mounted on the base frame;

a plurality of air therapy devices located on the bed; and

a plurality of control modules, each control module including a connector for coupling a corresponding air therapy device to the air handling unit and to the electrical communication network, each control module also including a controller for operating the corresponding air therapy device with the air handling unit based on command signals received from the electrical communication network.

2. The bed of claim 1, further comprising a user control interface coupled to the electrical communication network for transmitting command signals for the plurality of air therapy devices over the electrical communication network to control operation of the plurality of air therapy devices.

3. The bed of claim 2, wherein the user control interface includes a display and a user input, each control module transmitting display commands to the display related to the corresponding air therapy device.

4. The bed of claim 3, wherein the display commands from the control modules provide a menu driven list of options to the display to permit selection of control options for the plurality of air therapy devices from the user input.

5. The bed of claim 1, wherein the electrical communication network is a peer-to-peer communication network.

6. The bed of claim 1, wherein one of the plurality of air therapy devices is a support surface air bladder located on the deck.

7. The bed of claim 6, wherein the support surface air bladder includes a plurality of independently controlled air zones.

8. The bed of claim 7, wherein one of the plurality of control modules is a decubitus prevention control module coupled to the support surface air bladder to control each of the plurality of air zones of the support surface with a common connection to the air handling unit, and another of the plurality of control modules is a decubitus treatment control module for independently coupling the plurality of air zones of the support surface air bladder to the air handling unit.

9. The bed of claim 7, wherein one of the plurality of control modules is a percussion and vibration control module for coupling a selected air zone of the support surface air bladder to the air handling unit, the percussion and vibration module being coupled to the electrical communication network to provide percussion and vibration therapy in the selected air zone.

10. The bed of claim 6, wherein another of the plurality of air therapy devices includes a rotation bladder located between the deck and the support surface air bladder, and one of the control modules is a rotation control module for coupling the rotation air bladder to the air handling unit, the rotation control module being coupled to the electrical communication network.

11. The bed of claim 10, wherein the rotation bladder is stored in a deflated, flat configuration during normal use of the bed, and wherein the rotation control module selectively inflates portions of the rotation bladder to provide rotation of a body located on the support surface air bladder.

12. The bed of claim 1, wherein the deck includes a planar foot deck section, and one of the plurality of air therapy devices is a surface foot section including a first set of air bladders configured to collapse in a first direction generally parallel to the foot deck section when the first set of bladders is deflated, and a second set of air bladders configured to collapse in a second direction when the second set of bladders are deflated, and wherein one of the control modules is a foot section control module for coupling the first and second sets of bladders to the air handling unit, the foot section control module being coupled to the electrical communication network.

13. The bed of claim 12, wherein the deck is an articulating deck which is movable from a bed configuration to a chair configuration, the foot section control module deflating the first and second sets of air bladders when the articulating deck is in the chair configuration, and the foot section control module inflating the first and second sets of air bladders when the articulating deck is in the bed configuration.

14. The bed of claim 12, wherein each of the second air bladders is independently coupled to the air handling unit and controlled as a separate air zone by the foot section control module, the foot section control module selectively inflating and deflating the second air bladders independently to provide a heel pressure relief in the surface foot section.

15. The bed of claim 1, wherein one of the plurality of air therapy devices is a sequential compression therapy device, and one of the plurality of control modules is a sequential compression device air control module for coupling the sequential compression device to the air handling unit, the sequential compression device air control module being coupled to the electrical communication network.

16. The bed of claim 1, wherein one of the plurality of air therapy devices is a percussion and vibration bladder located on the deck for providing percussion and vibration therapy, and wherein one of the plurality of control modules is a percussion and vibration control module for coupling the percussion and vibration bladder to the air handling unit, the percussion and vibration module being coupled to the electrical communication network.

17. The bed of claim 1, wherein one of the plurality of control modules is an auxiliary air port control module coupled to the air handling unit and to the electrical communication network, the air port control module providing an auxiliary air outlet on the bed.

18. A control module for activating an air therapy device on a bed which includes a base frame, a deck coupled to the base frame, an electrical communication network, an air handling unit mounted on the base frame, a control interface coupled to the electrical communication network for transmitting command signals to the communication network, and a plurality of air therapy devices stored on the bed, the control module comprising:

at least one electrically controlled valve having an input and an output;

at least one pressure sensor having an input and an output;

an electronic controller coupled to and controlling the at least one electrically controlled valve and coupled to the output of the at least one pressure sensor; and

a connector for coupling the input of the valve to the air handling unit on the bed, for coupling the output of the valve to the selected air therapy device, for coupling the input of the pressure sensor to the selected air therapy device, and for coupling the controller to the electrical communication network on the bed so that the controller receives the command signals from the control interface to control the selected air therapy device.

19. The apparatus of claim 18, wherein the control interface includes a display and a user input, and the controller transmits display command signals to the control interface to display information related to the selected air therapy device on the display.

20. The apparatus of claim 19, wherein the display commands from the controller provide a menu driven list of control options for the selected air therapy device to the display to prompt selection of various control options for the selected air therapy device from the user input.

21. The apparatus of claim 18, wherein the selected air therapy device includes a plurality of air zones and the control module includes an electrically controlled valve for each of the plurality of air zones to couple the plurality of air zones to the air handling unit on the bed independently.

22. The apparatus of claim 21, wherein the control module includes a separate pressure sensor coupled to each of the plurality of air zones.

23. The apparatus of claim 18, wherein the control module includes a first electrically control valve for connecting an air pressure supply line to the air therapy device and a second electrically controlled valve for coupling a vacuum pump to the air therapy device, the first and second valves being coupled to the controller.

24. An air therapy device for use on a bed having a base frame, a deck coupled to the base frame, an electrical communication network, an air handling unit mounted on the base frame, and a header connector including an electrical connector coupled to the electrical communication network and a pneumatic connector coupled to the air handling unit, the air therapy device comprising an air zone, and a therapy control module having a controller, a valve coupled to the air zone of the air therapy device, and a module connector configured to mate with the header connector to couple the valve to the air handling unit and to couple the controller to the electrical communication network so that the air therapy device uses the air handling unit and electrical communication network.

25. The air therapy device of claim 24, wherein the module connector includes a first connector coupled to an input of the valve and a second connector coupled to the controller, the first connector of the module connector being configured to mate with the pneumatic connector of the header connector on the bed to couple the air handling unit to the air zone of the air therapy device through the corresponding valve and the second connector being configured to mate with the electrical connector of the header connector on the bed to couple the electrical communication network to the controller so that the controller receives commands from the electrical communication network to control air flow to the air therapy device through the valve.

26. The air therapy device of claim 24, further comprising a graphical interactive display coupled to the electrical communication network for transmitting command signals for the air therapy device over the electrical communication network to control operation of the air therapy device.

27. The air therapy device of claim 26, wherein the graphical interactive display includes a display and a user input, the control module transmitting display commands to the display related to the air therapy device.

28. The air therapy device of claim 27, wherein the display commands from the control module provide a menu driven list of options to the display to permit selection of control options for the air therapy device from the user input.

29. The air therapy device of claim 24, wherein the control module includes a pressure sensor having an input coupled to the air zone and an output coupled to the controller.

30. The air therapy device of claim 29, wherein the air therapy device includes a plurality of air zones, and the control module includes a separate valve and a separate pressure sensor for each of the plurality of air zones.

31. The apparatus of claim 24, wherein the control module includes a first electrically control valve for connecting an air pressure supply line to the air therapy device and a second electrically controlled valve for coupling a vacuum pump to the air therapy device, the first and second valves being coupled to the controller.