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POWER DRIVE SPEED CONTROLLER

IP.com Disclosure Number: IPCOM000185135D
Publication Date: 2009-Jul-13
Document File: 10 page(s) / 54K

Publishing Venue

The IP.com Prior Art Database

Abstract

The disclosure relates generally to person-support apparatuses. More specifically, but not exclusively, the disclosure relates to a speed control system for controlling speed of power driven person-support apparatuses.

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POWER DRIVE SPEED CONTROLLER

    The disclosure relates generally to person-support apparatuses. More specifically, but not exclusively, the disclosure relates to a speed control system for controlling speed of power driven person-support apparatuses.

    Power driven person-support apparatuses, such as, hospital beds, can be provided with powered mechanisms, for example, drive motors, to assist in moving the person-support apparatuses. The speed of the beds can be preset by a user or can be dynamically controlled by the user. Movement of the beds can require the side- supports, for example, lift arms, of the bed frame to be maintained parallel to the ground. However, in such cases, the caregiver can be required to maintain the desired speed of the beds so as to avoid causing any discomfort to the patient. The continuous maintenance of the lift arms parallel to the ground may not always be possible due to the physical conditions of the different patients. Further, the available methods of movement might not take into consideration various parameters, such as, bed frame inclination, bed height, patient weight and patient position of the bed. These parameters can be useful for controlling stability and thereby the speed of the bed. While various methods and devices have been developed, there is still room for improvement. Thus, a need persists for further contributions in this area of technology.

    The disclosure illustrates a speed control system for a person-support apparatus. The speed control system provides an optimum speed control mechanism for the movement of the person-support apparatus. The system can be mounted on a frame of the person-support apparatus, for example, bed for a patient. The speed control system can include a plurality of detectors and a speed controller. The speed controller can be configured to calculate and optimum speed for the person-support apparatus. The speed controller can be supported on the frame of the person-support apparatus. Further, the speed control system can include a plurality of detector or detecting devices.

    The speed control system for the person-support apparatus can be for a bed that can move on rollers driven by a powered system, for example, the intellidriveTM system,

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by Hill-Rom. The system can communicate with a speed controller that can have inputs that can be fed in manually in the form of a preset input, or from the plurality of detectors. The plurality of detectors, can be sensors configured to sense various characteristics of the person-support apparatus, such as, bed frame inclination, bed height, patient weight and position of the patient on the bed. The plurality of detectors can send an input to the speed controller. Thereafter, the speed controller can calculate an optimum speed based on the input from the plurality of detectors. Further, the calculation of the optimum speed can be done to limit the maximum allowa...