Touchscreen Hand Support With Faceplate for Motor-Impaired Input
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Solution Overview
Problem
Individuals with severe mobility limitations, such as those with brain injuries or autism, face challenges in using existing augmentative communication devices due to insufficient motor control, limiting their ability to effectively communicate through verbal or written means.
Innovation Solution
A portable housing device with a foldable design that includes a tabletop stand and a hand support pad with a biasing element, allowing for adjustable tension to assist in targeting specific zones on a touch screen, along with a detachable faceplate to prevent unintended actuations, enabling easier operation by individuals with limited motor skills.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a touch screen communication device is used, then verbal communication capability is improved, but motor skill requirements increase making it unusable for individuals with severe mobility limitations
Solution Approach 1:
The patent introduces a mechanical intermediary system consisting of a hand rest, pointer, and zone indicator that mediates between the user's limited motor control and the touch screen interface. The hand rest provides stable support, the pointer precisely targets zones without requiring fine motor control, and the zone indicator visually confirms the selected area, thus enabling communication for users with severe mobility limitations
Solution Approach 2:
The patent replaces the direct mechanical interaction required by standard touch screens (fingers directly touching the screen) with a mechanical assistance system. The hand rest and pointer mechanism substitutes for the user's insufficient motor control, allowing activation of touch zones through minimal wrist or hand movement rather than requiring precise finger positioning and pressure
2Ease of operation
If scanning communication devices are used for individuals without motor capability, then accessibility is improved, but communication efficiency decreases due to dependency on motor skills for proficient use
Solution Approach 1:
The device enables self-service communication by allowing the user to independently control the pointer position and activate zones without requiring external assistance or complex scanning sequences. The mechanical hand rest and pointer system responds directly to the user's minimal movements, providing immediate and intuitive control over communication output, thus maintaining both accessibility and efficiency
3Measurement precision
If a hand support pad with biasing element is added, then targeting precision is improved, but device complexity increases
Solution Approach 1:
The patent employs a biasing element (spring) that provides a configurable mechanical parameter - the biasing force - which can be adjusted to match the user's specific motor capabilities. This single parameter change enables the system to adapt to different users and conditions, achieving precise targeting without requiring complex electronic controls or multiple adjustable components
4Adaptability or versatility
If the housing is made foldable with adjustable angles, then adaptability to user position is improved, but manufacturing complexity increases
Solution Approach 1:
The patent implements a foldable housing with adjustable angles that transforms a static structure into a dynamic one. The housing can be folded and unfolded to different configurations, allowing the device to adapt to various user positions and environments. This dynamic structure is achieved through simple hinge mechanisms rather than complex adjustable components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables individuals with severe mobility limitations to communicate more effectively by allowing precise targeting of touch screen zones with minimal effort, enhancing their ability to express needs and interact with caregivers.
Implementation Method 1
The hand support pad include a biasing element which, in a neutral position, biases the hand support pad in a upward position relative to the touch screen of the communication device
Implementation Method 2
The bottom of the housing can be pivoted along a hinge assembly in a manner to provide support at a selectable angle relative to the top portion
Data Source
AI summary
A device for assisting individuals having impaired motor skill to actuate a selectable region of touch screen input of a portable computing device. The touch screen is secured in a housing, which includes an operator hand support structure. The hand support include a member for placement of the palm of the operator and allowing the palm to move the hand support structure to a selectable one of a plurality of regions of the touch screen and pivot downwardly to assist the operator to touch activate the touch screen input at the selected region. The device further includes a faceplate, which is positionable over the touch screen and has openings corresponding to the input regions of the touch screen input without interfering with the movement of the hand support. The sidewalls of the faceplate are of sufficient height to assist the operator's actuation of the intended region of the touch screen and inhibiting the operator from unintentional actuation of an adjacent region. The housing still further includes tabletop support for positioning the touch screen input at one of a plurality of selectable angles to facilitate ease of operation. The tabletop support can be repositioned to enclose the touch screen input.