Pressure control for a hospital bed
First Claim
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1. A pressure adjustable mattress system to support a patient, comprising:
- a pressure adjustable mattress;
a controller coupled to the pressure adjustable mattress to control the mattress in an automatic pressure relief mode and in a user adjustable mode, by, without leaving the automatic pressure relief mode;
computing an optimum pressure,controlling the pressure in the pressure adjustable mattress to the optimum pressure,receiving a user-specified pressure adjustment at a user interface device, wherein the user-specified pressure adjustment is specified relative to the computed optimum pressure,modifying the computed optimum pressure with the user-specified pressure adjustment, andcontrolling the pressure in the pressure adjustable mattress to maintain the modified optimum pressure; and
a user interface, coupled to the controller, the user interface including a selectable input to enable a user to control pressure adjustment of the pressure adjustable mattress in the automatic pressure relief mode and the user adjustable mode.
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Abstract
A patient support including a pressure adjustable mattress system. The pressure adjustable mattress system includes a support surface and a controller to control the pressure of the support surface.
140 Citations
30 Claims
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1. A pressure adjustable mattress system to support a patient, comprising:
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a pressure adjustable mattress; a controller coupled to the pressure adjustable mattress to control the mattress in an automatic pressure relief mode and in a user adjustable mode, by, without leaving the automatic pressure relief mode; computing an optimum pressure, controlling the pressure in the pressure adjustable mattress to the optimum pressure, receiving a user-specified pressure adjustment at a user interface device, wherein the user-specified pressure adjustment is specified relative to the computed optimum pressure, modifying the computed optimum pressure with the user-specified pressure adjustment, and controlling the pressure in the pressure adjustable mattress to maintain the modified optimum pressure; and a user interface, coupled to the controller, the user interface including a selectable input to enable a user to control pressure adjustment of the pressure adjustable mattress in the automatic pressure relief mode and the user adjustable mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 25, 26, 27, 28, 29, 30)
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16. A method for adjusting the pressure in a pressure adjustable mattress system including a controller, a user interface to receive a user input comprising a pressure adjustment, and a mattress to support a person, comprising the steps of, when the pressure adjustable mattress is in an automatic pressure relief mode and without leaving the automatic pressure relief mode:
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automatically determining a first pressure for the pressure adjustable mattress when the mattress is supporting the person, wherein the first pressure specifies a pressure value just prior to a bottoming-out condition; and adjusting the first pressure to a second pressure, different than the first pressure and based on the pressure adjustment, in response to the controller receiving the user input, wherein the adjustment is specified relative to the optimum pressure. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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Specification