How Does A Bionic Hand Work, And How Do They Move?

Prosthetics That Redefine Ability

COVVI’s bionic hand is designed for people with upper-limb differences to support them in completing day-to-day tasks and activities. By using different grips modelled on the most common human hand movements, advanced bionic hands – like ours – are built for work, recreational and social activities. Supporting with everything from household chores to everyday tasks while you’re out and about.

How Do Bionic Hands Move?

Sensors placed inside prosthetic arms detect the signals made when someone flexes the muscles in their limb. These signals are then sent to COVVI’s bionic hand, allowing it to open and close according to which direction they flex their muscles. Depending on how fast or slow that signal is applied, the hand will open or close at that applied speed.

The COVVI Hand has 24+ different grips modelled after the most common hand movements that people can change between.

How Do You Change To A New Grip?

The COVVI Hand can change between different grips in a number of different ways. Sending two ‘open’ signals in a row, holding an ‘open’ signal, or sending an ‘open’ and ‘close’ signal at the same time, are all options to change the hand to a new grip- making it easy to move into the position you require.

Grips can also be changed by; squeezing each of the fingertips of the COVVI Hand, holding down the ‘dorsal button’ on the back of the COVVI Hand for three seconds, or by tapping the thumb so that it rotates forwards or backwards. Although most people don’t use every one of these switching methods, the COVVI Hand provides a number of ways to switch between grips so that everyone can find the most comfortable way for them.

All COVVI Grips

Can You Personalise A Bionic Hand?

The accompanying COVVI Go App allows people to customise the way that they use their bionic hand at any time. This includes ordering and assigning different grips into ‘tables’ in a way that best suits each person’s requirements, as well as being able to add extra ‘User Grips’, such as the ‘Rock Grip’, to your hand set-up.

COVVI’s bionic hand is also available in three sizes and multiple unique colour options, so that you can have a hand that matches your unique sense of style.

How Do I Get A Bionic Hand?

Please complete the short form below, and a member of our expert team will be in touch with bespoke advice on how best to help you get your very own COVVI Hand. If you are based in the UK and would like to know more about obtaining a prosthesis through the NHS, visit our webpage on NHS Funding.

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Your Name*

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Which Option Best Describes You?*

I have an upper limb difference and am enquiring about a COVVI Hand for myself.

I am enquiring on behalf of someone with an upper limb difference, who is looking to get a COVVI Hand.

I am a Clinician who wants to fit a patient with a COVVI Hand

I am a Distributor who wants to supply the COVVI Hand in my country

Please Note: The COVVI Hand is a complete limb absence solution, therefore your residual limb must end between your wrist and shoulder in order to be fitted with a prosthetic hand like ours. As it is also a myo-electric prosthetic device controlled by EMG sensors, patients must also be able to produce muscle signals to operate the hand, which means it isn't suitable for those who have lost the ability to move their arm from an injury, stroke or any other form of paralysis.

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