COVVI THE NEXUS HAND User manual
www.covvi.com | Unit 4, Quayside Business Park, Leeds, LS10 1DJ | 020 3949 9500
Technical Manual
THE NEXUS HAND
Anything Is
Possible
Foreword
Six engineers sat down in a room with a blank sheet of paper, a pen, and an
idea to create the world’s leading upper limb prosthetic hand.
Two years later the Nexus Hand launched - mechanical calculations checked
and rechecked; electrical circuit boards designed and tested; computer
code programmed and verified; engineering drawings drafted and reviewed;
production facility built and commissioned; final product manufactured,
tested, and approved.
We wanted to create the best robotic hand system in the world and we
believe that we have done it.
The COVVI Team
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1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
Introduction 06
What’s Inside 08
2.1 The Hand Kit 08
2.2 The Advantage Kit 10
2.3 The Advantage Kit Part Numbers 11
Technical Information 12
Environmental Conditions 14
Safety Guidelines 15
5.1 Abuse & Neglect 15
5.2 IP44 15
5.3 Harsh Chemicals/Abrasives 15
5.4 Operating a Vehicle 16
5.5 Firearms 16
5.6 Sporting Activities 16
5.7 Safety Precautions 17
At a Glance 18
The Nexus Hand 19
7.1 Turning On/O 19
7.2 Technical Detail 21
7.3 Key Features 22
Grip Patterns 23
The Nexus Thumb 25
Flex Wrist 27
Connections 28
11.1 Power Supply 28
11.2 Overview 28
11.3 System Connections 32
11.4 Component Compatibility 33
Contents
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Contents
12.0
13.0
14.0
15.0
16.0
17.0
18.0
COVVI Go 34
12.1 Target Hardware 34
12.2 Installing the COVVI Go App 34
12.3 Registration 35
12.4 Running The App 35
12.5 Hand Device Selection 35
12.6 Firmware Update 37
12.7 Setup Wizard 38
12.8 Sensor Interface Screen 38
12.9 Operating Modes 39
12.10 Thumb Mode 41
12.11 Grip Tables 42
12.12 Grip Switch Triggers 43
12.13 Common Options 44
12.14 Changes 47
12.15 Input Settings 48
12.16 Options 50
12.17 Advanced Configuration 51
12.18 Config History 52
Maintenance 53
Warranty 54
14.1 Nexus Hand 24-Month Limited Warranty 54
14.2 Nexus Hand Extended Warranty Option 55
14.3 Warranty Service and Repairs 56
14.4 Limited Liability 56
Returns 57
Disposal 57
Symbols Used 58
EC Declaration of Conformity 59
00 | Page 06www.covvi.com | Unit 4, Quayside Business Park, Leeds, LS10 1DJ | 020 3949 9500
1.0 Introduction
Our company name, COVVI, is a portmanteau of the Latin ‘Coperer’ and ‘Vita’, translating as
‘working together’ and ‘life’. COVVI was conceived to change many lives by working together
- within our team and stakeholders, with clinicians worldwide, and with our users.
We entered the prosthetics industry in 2017. Commitment and focus have got us to where we
are today. After years of hard work, drive, and passion, we are proud to announce Nexus, the
new multi-articulated hand by COVVI.
Both names were formulated to reflect our single driving intention to change multiple lives
together forever through harnessing endless connections to make anything possible. With
our names came our ‘delta’ logo, which also has meaningful origins as a symbol of change
and doing things dierently.
Partners in Prosthetics
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First and foremost, we are so pleased to have been picked by you and your patient as the most
appropriate prosthetic hand that will fit their needs.
Our team is experienced in the field of prosthetics and therefore understands the daily challenges
of prosthetic use and have worked hard to overcome these issues in the design of the Nexus
Hand. Function and robustness have been our two primary goals. We also appreciate that the
appearance of a prosthetic hand is very important for users. We designed the Nexus Hand
based on measured data collated from human hands to give it a natural form with novel colours
and materials to create a concept that users will be proud to wear.
The Nexus Hand was designed to withstand the necessities of daily activities; however, it should
not be subject to excessive force. Please refer to Section 5 (Pages 14-16) for more information
on our safety guidelines. As seen in Section 11.3 (Page 32), please note that the Nexus Hand
is recommended with COVVI products.
The Nexus Hand should only be fitted
by a Certified Prosthetist.
This symbol is used in instances to warn about hazardous or dangerous materials
and/or objects and will be used throughout this document.
We do not recommend the use of carbon fibre materials in a fabricated socket
unless it is grounded to the carbon fibre lamination.
This product uses semiconductors that can be damaged by electrostatic discharge
(ESD). The Nexus Glove can be removed, but no further disassembly can be done.
All disassembly and/or repairs below this level can only be conducted by certified
technicians with training from COVVI. Any disassembly performed by unauthorised
personnel will not be covered under warranty. Any disassembly performed by
unauthorised personnel will not be covered under warranty.
CAUTION
PRECAUTIONS FOR HANDLING
ELECTROSTATIC SENSITIVE DEVICES
1.0 Introduction
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2.0 What’s Inside
2.1 The Hand Kit
Nexus Hand
5-Piece Foam
Packaging
To remove the Nexus Hand from its packaging, remove the end piece of foam by the fingertips
first and then slide the rest of the foam pieces up which will allow you to lift the hand out. You
can then remove the foam o the fingers and the EQD wrist.
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2.0 What’s Inside
2.2 The Hand Kit Part Numbers
Example Part Numbers: CV1LSQCLCA19####
CV1 |L | S |Q |CL |CA |19 |####
19 2019
20 2020
19 Year
## 4 Digit Value
#### Serial
Number
S
SSmall
MMedium
LLarge
Size
QQEQD
Wrist
CL CL Clear
BL Black
Glove
Colour
CA
WH White
CA Carbon Black
RG Rose Gold
TG Titan Grey
Cover
Colour
LLLeft Hand
RRight Hand
Hand
Type
CV1 CV1
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Lamination Ring
Coupling Piece
COVPS-1600
Power Supply
Electrodes
COVSWC
Wall Charger
COVPS-1600
USB-C Charge Point
Nexus Hand
2.0 What’s Inside
2.3 The Advantage Kit
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1
Table of contents
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