Bionic Prosthetic Hand

Bionic Prosthetic Hand
COVVI has designed its prosthetic technology around the necessity of functionality and accessibility, for both clinicians and users. The COVVI Hand boasts incredible robustness and versatility to match what’s required for everyday use, all of which is backed by software that provides an unrivalled user experience with a powerful level of customisable refinement.In order to achieve this, we have ensured our designs are world-leading in their capability, are personalisable to each and every user, can withstand the strength and speed pressures required of a hand for everyday life, and most importantly are easy to use.

In addition to developing the COVVI Hand, we also offer extra products and accessories so you have everything needed to get you up and running with your COVVI prosthetic device. This includes our power supply module, control panel, lamination ring, wall charger and more.
COVVI appreciates that limb difference literally comes in all shapes and sizes, and we understand the different experiences and relationships you may have with it. No matter what you decide, COVVI wants to support you in any way we can and empower our users, both through technology and in a way that speaks to their personalities.
| COVVI Hand Size – Small | 17.15cm / 6.75 inches |
| COVVI Hand Weight – Small | 638g / 1.41 lbs* |
| COVVI Hand Size – Medium | 18.42cm / 7.25 inches |
| COVVI Hand Weight – Medium | 662g / 1.46 lbs* |
| COVVI Hand Size – Large | 19.69cm / 7.75 inches |
| COVVI Hand Weight – Large | 692g / 1.53 lbs* |
| COVVI Hand Voltage | 7V to 8.4V DC |
| Maximum Current Consumption | 5A (Max. Constant) / 7A (Max. peak, 50ms duration) |
| Maximum Hand Load Limit (A) with force applied upwards | 90kg / 198 lbs over the knuckles |
| Maximum Hand Load Limit (B) picking weight up | 32kg / 71 lbs across the fingers |
| Maximum Finger Load Limit | 16kg / 35 lbs |
| Maximum Opening Width (Tripod Grip | 120mm |
| Full Open to Full Close | 0.7 seconds to achieve grip |
| Tripod Grip | 0.4 seconds to achieve grip |
| Tripod Grip Force | 45N / 10 lbf |
| Power Grip Force | 80N / 18 lbf |
| Key Grip Force | 22N / 5 lbf |
COVVI has designed its prosthetic technology around the necessity of functionality and accessibility, for both clinicians and users. The COVVI Hand boasts incredible robustness and versatility to match what’s required for everyday use, all of which is backed by software that provides an unrivalled user experience with a powerful level of customisable refinement.
In addition to the tough exterior materials (Silicone and High-Strength Polymers) used to protect the internal components, the strength and speed capabilities of the COVVI Hand are on par with market leaders.
Having a bionic hand that works as close to a human one as possible goes a long way in making it easy to use.
The COVVI Hand has been developed so that prosthetics users no longer need to compromise between dexterity and grip strength.
The hand is loaded with switching options to give users fast access to a multitude of grips.
Our digits are spring-loaded to provide impact protection and reduce the likelihood of damage, as well as being manufactured from stainless steel and aluminium for increased strength and durability.
The COVVI Hand has a built-in flex wrist with a range of +/- 30° featuring a simple push/push lock. This operates using passive spring-loaded technology for natural and fluid usage, as well as helping to reduce strain on the user’s shoulder. This component is integrated with every size of the COVVI Hand.
This system works like a ballpoint pen – simple and quick. The free-flex capabilities also allow for more natural use without additional myo-inputs.
The integrated E-Paper screen allows the user to display important information, such as the current grip pattern, battery monitor and system notifications.
There is also vital diagnosis data for the clinician too – very useful for mode identification, troubleshooting issues, training information during set-up and fault.

This software operates across both tablets and smartphone platforms and is accessible via both Apple and Android devices, giving users quick access to the hand at any time with only one account.
COVVI Go is the control centre for the COVVI Hand; it allows the user to manage input settings, grip switch triggers and measuring inputs whilst allowing for troubleshooting in the event of any potential faults. For potential users, we also have a virtual COVVI Hand available to test control strategies.

As you become more familiar with your hand, you can test out different setups and make any changes in the App to best suit your daily activities and lifestyle.
The Setup Wizard allows you and your clinician to configure your COVVI Hand according to your preferences and requirements. This feature allows you to customise the sensor interface, operating modes, grip tables, grip switch triggers and more.
The Input Graph allows you to maximise the performance of your COVVI Hand and ensures you can comfortably operate your COVVI Hand before programming the grip tables and grip switch triggers.
There is also the option to use the Input Gain which allows you to amplify your signals to use your hand at full speed without over exertion.

The COVVI Go App has been fully translated into Mandarin Chinese and can be toggled on the login screen. We’re currently working on bringing other key languages to the app that’ll be added via updates.
In the meantime, all the buttons and links in the app are coded to use printable text, so you should be able to take advantage of the translation settings in your OS, or third-party apps to use COVVI Go in your language.


