COVVI Hand

For a full detailed description of the COVVI Hand, Click Here.

The COVVI Hand combines an extraordinary level of functionality with a captivating design to offer you the best prosthetic hand on the market. The hand is enabled by an innovative actuator design with market-leading power density and comes available in three different sizes. Our hand size range is suitable for all adults and most adolescents and comes in small, medium and large. The height of our three different hand sizes are:

• Small – 6 3/4 inches / 17.15cm
• Medium – 7 1/4 inches / 18.42cm
• Large – 7 3/4 inches / 19.69cm

All of which operate with next level grip (70N) and speed (0.3s Tripod grip) capabilities.

It also has a three-way digit control system, in addition to an in-built E-Paper screen that can display notifications, troubleshooting issues and training information during set-up.

Thumb Design:

The COVVI Thumb design is fully customizable, but by default includes a passive flexing capability (also applies to all fingers), operating via thumb force and position sensors and an intuitive rocker switch e.g. Tap the thumb right to move it to the right.

COVVI has built a product with an innovative and highly robust thumb. Using a twin motor design, effective thumb control is achieved by only taking a rapid 0.3 seconds for both full rotation and full-flex travel.

There are two operational modes:

Latched: prevalent in prosthetics already, using opposed and unopposed grips – this allows easier access to multiple grips.

Dynamic: simultaneous thumb flex and rotate (can use an open/open or co-contraction to cycle grip patterns) – allows for a wider variety of grips without external input.

Electrodes:

The COVVI electrodes are compatible with most standard electrode cabling and operate at a 30-250Hz frequency band (highly sensitive at low levels).

Really easy to fit, our ‘T-shape’ construction drops through a hole in the socket wall and is locked in place with a spring-loaded clip. The flexible upper housing conforms well to the inside surface of socket walls.

Our electrodes also use bio-compatible titanium contacts, ensuring a comfortable, skin-friendly and flexible upper surface, in addition to a notch filter to reduce interference.

Power Supply:

Our product features an extremely light and highly flexible battery solution that will follow the contours of the limb without bending the cell. Charged via a waterproof USB-C, which is great for charging on the go, and is compatible with all 7.4v EQD hand systems.

Our arm connectors are military-grade and utilize simple latching features. The power supply is compact and robust with a rubberized design that communicates with the built-in E-Paper screen, displaying battery life among other information.

The power density is double that of competing systems: 7.4v 1600mAh, 2xCELLS (3.9in x 1.7in x 0.1in).

Features and Benefits:

• Customize Your Functions - There are several different triggers available in the hand which the user can assign to functions such as, changing grip, grip tables. Each of the four grip tables can be configured by the end user to hold up to 6 preprogramed grips of their choice.
• Solutions That Fit Your Style - The COVVI Hand comes in three sizes with an option of three striking matte coloured covers; Carbon Black, White and Titan Grey.
• Grip Patterns - The hand comes pre-programmed with 14 default grip patterns that can be configured in tables by the end-user and easily switched between to complete various tasks. This range can also be expanded with an additional six, user specified grips if required (downloadable via the COVVI Go App).
• COVVI Go App - Available on both Apple and Android devices, COVVI Go is the control centre for the COVVI Hand. By connecting to the hand via Bluetooth, the user can manage input settings, grip switch triggers and measure inputs whilst allowing for troubleshooting in the event of any potential faults.