Touch Bionics, a manufacturer of prosthetic limbs and innovators of the i-LIMB Hand, have created the world’s first bionic fingers named ProDigits. Each ProDigit can be custom designed to meet each individual’s exact requirements. This groundbreaking technology represents a significant advancement in the field of prosthetics, offering enhanced functionality and improved quality of life for users. Check out the video after the jump.
Control Strategies for ProDigits
There are two control strategies that can be employed to power ProDigits: either myoelectric sensors that register muscle signals from the residual finger or palm, or a pressure-sensitive switch input in the form of a force-sensitive resistor (FSR), or touch pad, which relies on the remnant digit or tissue surrounding the metacarpal bone to provide the necessary pressure to activate the finger.
The myoelectric sensors work by detecting the electrical signals generated by the muscles in the user’s residual limb. These signals are then translated into movements of the prosthetic fingers, allowing for a more natural and intuitive control. This method is particularly beneficial for users who have sufficient muscle activity in their residual limb.
On the other hand, the pressure-sensitive switch input method uses a force-sensitive resistor or touch pad to detect pressure from the user’s residual limb. This method is advantageous for users who may not have strong or consistent muscle signals but can still apply pressure to control the prosthetic fingers. Both control strategies offer flexibility and adaptability, ensuring that a wide range of users can benefit from ProDigits.
Advanced Features and Benefits
As with the i-LIMB Hand, a unique stall feature allows the device to detect when it has closed around an object, also allowing users to point single digits and configure the hand in various grip patterns.
The stall feature is a critical component of ProDigits, providing users with the ability to grasp objects securely without exerting excessive force. This feature ensures that the prosthetic fingers can hold items of varying sizes and shapes, from delicate objects like a piece of paper to heavier items like a coffee mug. Additionally, the ability to point single digits and configure the hand in various grip patterns enhances the versatility of ProDigits, making it suitable for a wide range of daily activities.
For example, users can configure their prosthetic hand to perform a precision grip for tasks that require fine motor skills, such as picking up small objects or typing on a keyboard. Alternatively, they can use a power grip for tasks that require more strength, such as lifting a grocery bag or opening a door. This adaptability makes ProDigits a valuable tool for individuals seeking to regain independence and perform everyday tasks with ease.
Moreover, the custom design aspect of ProDigits ensures that each prosthetic finger is tailored to the user’s specific needs and preferences. This personalized approach not only enhances the functionality of the prosthetic but also improves the overall comfort and user experience. By taking into account the unique characteristics of each user’s residual limb, Touch Bionics can create prosthetic fingers that fit seamlessly and operate efficiently.
Via Gizmag
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