Silverhand Arm

The Silverhand Arm is a transradial prosthetic arm, able to be used by anyone with an amputation at the elbow to the mid-forearm. Unlike other transradial models, The Silverhand Arm does not require the user to have a forearm. It is designed for quick bicep-based control and allows you to seamlessly grab and release items in a quarter of a second, which is faster than human reaction time. Per full charge, The Silverhand Arm can last a full day’s worth of activities for the user. We take in your dimensions and 3D print an arm specifically designed for you, charging only the material cost to do so.

We offer arms in four sizes, allowing you to get the right match and have an arm that feels as natural as your own as you go about your day. The To ensure a snug fit and comfort, simply add cushioning in the socket to your needs.

The Silverhand arm was designed to allow for individuals 8 and up to effortlessly perform a variety of everyday tasks that involve simple open-close, pinch, and poke motions such as:

• Riding a bike
• Tying shoes
• Getting dressed
• Lifting objects up to ___ lbs (___ kg)
• Maybe give example like (toolbox)
• Opening doors
• Holding various items such as cups, bottles, food, balls, utensils, and bags
• Maybe give specific examples like (water bottles, mugs, utensils, oranges, backpacks; perhaps include eating and even drinking as a separate bullet point
• Holding and using touchscreen devices
• Pushing buttons

However, some high-intensive activities may damage or break the arm. These include contact sports, watersports, or activities that would have the wearer support their entire weight with the arm such as push-ups, pull-ups, rock climbing, and parkour. If any dust, liquid, or debris entering the shell of the arm could cause it to malfunction or stop functioning altogether.

We also do not recommend manually changing the position of the fingers, as this will rotate against the servo motors and damage them. This will also lead to weaker grip overtime. We also recommend keeping the hand open while not in use.

We will continue to work with those who have ordered an arm, providing replacements and any adjustments needed

Add video here for starting the arm

1. Turn on the arm
2. Do other stuff

The two-motor Silverhand Arm allows you to switch between a subset of the four hand positions depending on the mode selected. After selecting command phrases you would like to use for each mode, you can say one of them into the arm to switch modes. The voice control will only respond to your commands, and you can change them at any time through __________. This arm is also compatible with a Michigan Neuroprosthetics iOS and Android application that will allow the user to switch between modes through touch control.

Add video here for switching modes

The ___ mAh battery will last you an entire day of use under average conditions. The battery only noticeably draws power while the motors are fully rotated, so to ensure the longest battery life possible, we recommend keeping the hand open while not in use. However, you do not need to turn off the arm while not in use, as this will not significantly save battery life and will instead require you to restart calibration when powered back on.

Add table here about battery info

Add video here for turning the wrist

If you would like anything custom to your arm, we’re more than happy to make it! If you have any suggestions for improving our design, contact us at any point here.

To make the largest impact possible, we want to go beyond our team and work with the rest of the world to collaboratively develop prosthetic limbs.