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COVVI THE NEXUS HAND, Техническое руководство

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00    |    Page 28

www.covvi.com    |    Unit 4, Quayside Business Park, Leeds, LS10 1DJ    |         020 3949 9500

11.0   Connections

The Power Supply is an extremely light and highly flexible battery solution that will follow the 

contours of the limb without bending the cell. Even though the battery cells can be folded 

over one another, please remember the individual battery cells are not bendable. They are 

compatible with all 7.4V EQD hand systems.
Each battery cell outputs 3.7V which is equal to an output range of 6.5-8.4V. Both battery 

pack sets provided in the Power Supply Kit must be used. The battery packs are charged via 

a waterproof USB-C connection, which is great for charging on the go and the battery life is 

displayed on the built-in OLED screen. COVVI uses military grade connectors with stainless 

steel latches to ensure a reliable connection.

11.1   Power Supply

11.2   Overview

USB-C Charge 

Point

2-Pin for EQD 

Connector Cable

Battery 

Connectors

EQD Power 

Cable

Power 

Button

Display 

Screen

The user cannot use their prosthesis while it is charging, as the power is 

automatically turned off. 

Содержание THE NEXUS HAND

Страница 1: ...www covvi com Unit 4 Quayside Business Park Leeds LS10 1DJ 020 3949 9500 Technical Manual THE NEXUS HAND...

Страница 2: ...Anything Is Possible...

Страница 3: ...ched mechanical calculations checked and rechecked electrical circuit boards designed and tested computer code programmed and verified engineering drawings drafted and reviewed production facility bui...

Страница 4: ...onmental 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 Precautio...

Страница 5: ...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...

Страница 6: ...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 art...

Страница 7: ...ct 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 prod...

Страница 8: ...e 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 whic...

Страница 9: ...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 S Small M Medium L Large Size Q Q EQD Wrist CL CL Clear BL Black Glove Colou...

Страница 10: ...Unit 4 Quayside Business Park Leeds LS10 1DJ 020 3949 9500 Lamination Ring Coupling Piece COVPS 1600 Power Supply Electrodes COVSWC Wall Charger COVPS 1600 USB C Charge Point Nexus Hand 2 0 What s Ins...

Страница 11: ...0 1DJ 020 3949 9500 2 0 What s Inside 2 4 The Advantage Kit Part Numbers Example Part Numbers AK140E316 AK1 40 E 3 16 X 1000mm 6 600mm 3 300mm 1 100mm 3 Cable 16 COV 1600 16 Battery U CEL 60 E CEL 50...

Страница 12: ...Base B 4 46 110 4 5 114 5 4 8 124 Max Chassis Width C 2 76 70 3 75 3 1 80 Diameter of Chassis at Wrist D 1 85 47 1 85 47 1 9 50 Palm Circumference G 7 3 190 7 6 195 7 8 200 Maximum Opening Width Trip...

Страница 13: ...essure on thumb 3 0 Technical Information Nexus Hand Voltage 7 to 8 4V Maximum Current Consumption 5A Device Weight 1 lbs 570 g Maximum Hand Load Limit A 198 lbs 90 kg across knuckle Maximum Finger Lo...

Страница 14: ...emperature 4 F 20 C Humidity Maximum 80 non condensing Pressure 101 3 kPa The Nexus Hand is to be used exclusively for prosthetic fittings of upper limbs Based on the environmental conditions below th...

Страница 15: ...The Nexus Hand is protected against solid objects over 1 mm in diameter and is also protected against sprays or splashes from all directions 5 3 Harsh Chemicals Abrasives The Nexus Hand is made up of...

Страница 16: ...end that their prosthesis is fully charged In the event of an accident occurring while operating a vehicle with a Nexus Hand or any other COVVI product COVVI Ltd shall not be liable under any circumst...

Страница 17: ...e the Nexus Hand while the batteries are charging When the batteries are charging the power automatically will automatically turn off If for any reason the power does not turn off while charging using...

Страница 18: ...www covvi com Unit 4 Quayside Business Park Leeds LS10 1DJ 020 3949 9500 6 0 At A Glance Flexible Glove Electric Quick Disconnect Palm Grip Surface E Paper Screen Rigid Covers Mode Button Wrist Flexi...

Страница 19: ...ng it to the arm socket via the electric quick disconnect Please see the diagram on the next page for instructions on how to connect the Nexus Hand to the patient s socket To activate sleep mode push...

Страница 20: ...t the connection by twisting the Nexus Hand 90 clockwise and 90 anticlockwise then give it a light pull in the opposite direction To disconnect the Nexus Hand from the socket please rotate the Nexus H...

Страница 21: ...digits to be robust by manufacturing them from a combination of stainless steel and aluminium The digits are equipped with individual springs that load the fingers and thumb into passive extension The...

Страница 22: ...ated flex wrist The index fingertip is touch screen compatible Intuitive thumb control smart switching Water and dust resistant IP44 Remote firmware updates E Paper screen Robust Multiple grip pattern...

Страница 23: ...flex to work the trigger Power Grip The four fingers flex towards the palm around an object with the thumb completing the grip by locking over the first two fingers This is a stable grip for when hold...

Страница 24: ...le grip Key Card Grip All four fingers partially flex to provide a stable platform and the thumb moves to an unopposed position against the side of the first finger This grip is for holding thin objec...

Страница 25: ...ned to enable powered thumb flexion and powered thumb rotation It has two control strategies latched and dynamic which the user can easily switch between The thumb also has a rocker switch spring load...

Страница 26: ...Opposed to Unopposed Tap the Left side of the thumb to move it right For a Left Hand Unopposed to Opposed Tap the Left side of the thumb to move it right Opposed to Unopposed Tap the Right side of th...

Страница 27: ...al embodiment of the Nexus Hand as it is not rigid but rather provides organic movements Furthermore when using the wrist in flex state if the user were to fall or trip it is less likely there will be...

Страница 28: ...l outputs 3 7V which is equal to an output range of 6 5 8 4V Both battery pack sets provided in the Power Supply Kit must be used The battery packs are charged via a waterproof USB C connection which...

Страница 29: ...y turns on you will see COVVI come up on the screen COVVI will stay on the screen for two seconds the screen will then display the current charge level for five seconds then go black with the USB unpl...

Страница 30: ...s the Power Button once and to confirm the selection press the Power Button again for two seconds Please Note The screen will not turn off while the USB is plugged in Should there be a fault with the...

Страница 31: ...ed as a guide individual prostheses will differ from patient to patient The Charge Control System can be inserted into an aperture created in the patient s prosthetic arm We have provided a cutting te...

Страница 32: ...cables to CAXCOR The grounding contact on the coaxial core shown in the picture above can be used for earthing carbon sockets Please do NOT cut any system cables while the power is ON This will short...

Страница 33: ...and cables other than those specified or provided by COVVI Ltd could result in increased electromagnetic emissions or decreased electromagnetic immunity of the Nexus Hand and result in improper opera...

Страница 34: ...o is compatible with Apple devices running iOS v12 0 or above with Bluetooth v4 2 capabilities An Android version of the COVVI Go App will be available in 2020 Look for COVVI Go in the Apple App Store...

Страница 35: ...an begin If Bluetooth is disabled on the iPad iPhone then the App will inform the user by presenting a message box that will guide the user to the Bluetooth settings screen Bluetooth communication for...

Страница 36: ...our Nexus Hand to start the connection process Once connected the first screen to appear is the Device Summary which summaries information about the connected hand and gives a configuration overview T...

Страница 37: ...an only be made when a new update is automatically detected by the App Clicking on the Check for Firmware Update text in the Device Summary page will bring up the content page below This lists the new...

Страница 38: ...check that there are no pending updates and that the firmware revision number has increased If at any point any errors occur then please get in contact with COVVI Customer Services customerservice cov...

Страница 39: ...channel A is for opening the Nexus Hand while channel B is used for closing This is the default setting The settings can be switched to control the Nexus Hand the opposite way Once the interface optio...

Страница 40: ...Sensor Interface screen 12 9 Operating Modes Single Site Alternating A signal is sent which is mapped to close the Nexus Hand If the user releases that signal the hand stops closing The user then has...

Страница 41: ...rolled by the user in latched mode The user can lock the thumb into an opposed or unopposed position The Nexus Hand recognises the position that the thumb is set to and will switch to an opposed non o...

Страница 42: ...d A user can currently have up to four Grip Tables that can be populated with up to six different grip patterns to use as they wish Default Grip Tables Factory defaults provides two tables populated w...

Страница 43: ...switch to the next Table The current grip would switch to the grip at the top of the table Co contraction is a dual site input where the user fires both muscles simultaneously 3 Any grip trigger can b...

Страница 44: ...et the most from their Nexus Hand Default Switch Back Time The grip pattern at the top of the grip table is the primary grip pattern When in any other grip pattern if there is no activity for a set am...

Страница 45: ...ingers can be reduced if required This is useful whilst the user familiarises themselves with their Nexus Hand Maximum Thumb Strength As a safety feature the maximum force of the thumb can be reduced...

Страница 46: ...y little battery power and so we recommend keeping this option enabled Buzzer An audible alert is available to inform the user when something has just happened i e a grip change or when Bluetooth comm...

Страница 47: ...guration changes highlighting their before and after values To finalise the changes press the Finished Update button at the top right of the screen This will send the changes to their Nexus Hand and t...

Страница 48: ...uscles and can vary in strength Changing the individual thresholds of each input helps the user maximise performance of their Nexus Hand To change input thresholds the data is displayed on the input g...

Страница 49: ...two Co contraction thresholds Input A Cocon Threshold Input B Cocon Threshold Co contraction Threshold A successful co contraction is both input signals rising above a threshold within a determined pe...

Страница 50: ...the user selects single site the output is shown on Input A If the user selects double site the outputs are shown on Input A and B Co contraction Time This is the time between two inputs both exceedin...

Страница 51: ...overview of the user s set up It also allows users to edit specific settings and features directly rather than going through the Set Up Wizard again Its primary use is when you have an established se...

Страница 52: ...at the top right hand side of the Advanced Config screen which they can download at any time as long as they are connected to the internet This setting also allows users to revert to previous configu...

Страница 53: ...t is recommended to service the Nexus Hand every year If the user notices any problems with their Nexus Hand please contact Customer Services so COVVI Ltd can perform a service and assist with any mai...

Страница 54: ...n is limited only to the repair or replacement of defective parts within the warranty period or at the sole discretion of COVVI to refund the purchase price of a full refund partial refund or no refun...

Страница 55: ...orkmanship within the warranty period Limitation in those instances where changes alterations or modifications are made in materials at the request or instruction of the customer the customer agrees n...

Страница 56: ...tampered with COVVI has the right to void the warranty of all products that have any type of modifications or damage caused by any unauthorised or untrained personnel Any form of abuse neglect and ex...

Страница 57: ...assist with any maintenance issues Clinicians will need to fill out a Repair Form and obtain a COVVI Repair Number Get in touch with us via 020 3949 9500 Phone 15 0 Returns 16 0 Disposal Please check...

Страница 58: ...the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation United S...

Страница 59: ...electrical equipment General requirements for basic safety and essential performance Collateral Standard Electromagnetic disturbances Requirements and tests BS EN 60601 1 2006 A12 2014 Medical Electri...

Страница 60: ...COVVI Ltd Unit 4 Direct House Quayside Business Park Leeds LS10 1DJ Phone 020 3949 9500 Email customerservice covvi com Website www covvi com v1 1 0 July 2020...

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