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

Technical Manual

THE NEXUS HAND

Содержание AK140E316

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: ...thetics has historically been very low but as engineers and designers we see this as a challenge to continuously improve our designs to meet the needs of users COVVI started with a blank sheet of pape...

Страница 4: ...Conditions 18 Safety Guidelines 19 6 1 Abuse Neglect 19 6 2 IP44 19 6 3 Harsh Chemicals Abrasives 19 6 4 Operating a Vehicle 20 6 5 Firearms 20 6 6 Sporting Activities 20 6 7 Safety Precautions 21 Th...

Страница 5: ...bility 54 COVVI Go App 58 13 1 COVVI Go 58 13 2 Registration 59 13 3 Hand Selection 59 13 4 Input Settings 61 13 5 Setup Wizard 65 13 6 Sensor Interface Screen 65 13 7 Operating Modes 66 13 8 Grip Tab...

Страница 6: ...ly result in the prosthetic device being rejected which we see as a personal failure In today s world there are so many products and designs that we simply do not need yet in the field of prosthetics...

Страница 7: ...ering Behind Nexus Stainless Steel Finger Pivot E Paper Screen High Impact Polymer Chassis Stainless Steel Knuckle Cast Aluminium Digit Components Stainless Steel Finger Link Stainless Steel Finger Ch...

Страница 8: ...and tried to shrink their design down which was challenging to do without losing some of the hand s function We are extremely proud of our compact design and cannot wait to see your patient bring it t...

Страница 9: ...o 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 grounde...

Страница 10: ...box then slide the rest of the foam pieces along into the gap left by foam piece 1 Lift the hand from the box by foam piece 2 and 5 and slide both off from the EQD and fingertips respectively To repla...

Страница 11: ...ers Example Part Numbers CV1LSQBLCA21 CV1 L S Q BL CA 21 Fixed Part Numbers CV1 Product Code Q EQD BL Glove Colour Black 21 Year Manufactured 4 Digit Serial Number Customisable Part Numbers CA WH Whit...

Страница 12: ...COR Coaxial Core CLAMRG Lamination Ring These are located on the underside of the foam with the electrodes COVPS 1600 Shown CEL 2x Electrodes COVSWC Wall Charger Gain Adjuster CELCAB Electrode Cables...

Страница 13: ...est Japan Saudi Arabia South Korea Guyana Haiti American Samoa Anguilla Antigua and Barbuda Aruba Bahamas Belize Bermuda British Virgin Islands Cayman Islands Costa Rica Cuba Dominican Republic Ecuado...

Страница 14: ...4 Quayside Business Park Leeds LS10 1DJ 020 3949 9500 3 0 Technical Information Flexible Glove EQD Electric Quick Disconnect Palm Grip Surface E Paper Screen Rigid Covers Dorsal Button Wrist Lock But...

Страница 15: ...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 Tripod Grip H 4 4...

Страница 16: ...g 70 5 lbs Avoid pressure on thumb 3 0 Technical Information Nexus Hand Voltage 7 to 8 4V Maximum Current Consumption 5A Device Weight 0 57kg 1 25 lbs Maximum Hand Load Limit A 90kg 198 lbs across knu...

Страница 17: ...nd dexterity As the gloves get thinner the function improves but the realism decreases ultimately negating the purpose of a cosmetic glove With the Nexus Hand we went down a radical route to design so...

Страница 18: ...erature 4 F 20 C Humidity Maximum 80 non condensing Pressure 101 3kPa 14 7psi The Nexus Hand is to be used exclusively for prosthetic fittings of upper limbs Based on the environmental conditions belo...

Страница 19: ...g the Nexus Hand to any harsh chemicals that may cause damage If your patient chooses to clean their Nexus Hand please ensure they use mild soap and water Abrasive cleaners and cleaning cloths will sc...

Страница 20: ...petitive level There is likely to be a specific terminal device which would be better suited 6 4 Operating a Vehicle Although the Nexus Hand can be used for many day to day activities please ensure yo...

Страница 21: ...Do NOT attempt to use the Nexus Hand while the batteries are charging When the batteries are charging the power will automatically turn off If for any reason the power does not turn off while charging...

Страница 22: ...quick disconnect Please see the following diagram for instructions on how to connect the Nexus Hand to the patient s socket 7 1 Connecting Disconnecting the Nexus Hand 7 0 The Nexus Hand Overview If...

Страница 23: ...n give it a light pull in the opposite direction When the Nexus Hand powers up you will hear the start up beep and the screen will display Nexus for a second To disconnect the Nexus Hand from the sock...

Страница 24: ...image shows Version 2 followed by the date it was created The Nexus Hand has an E Paper screen designed to show device information such as current grip battery life and system notifications It can als...

Страница 25: ...n When the Nexus Hand is too humid outside of its normal operating humidity see section 5 0 the following warning message and icon will appear If this message appears please disconnect the hand and al...

Страница 26: ...revious design we saw how popular the passively flexing fingers were for a prosthetic hand as they played an important role in protecting the expensive actuators So we decided to take this one step fu...

Страница 27: ...ething it is less likely there will be catastrophic damage to the hand as it flexes out of the way It is also the lowest profile flex wrist on the market with the mechanism incorporated into the hand...

Страница 28: ...ble to bilateral users who can simply tap the thumb on the side of their leg or a hard surface and it will give them fast access to all the grips 8 4 Water and Dust Resistant IP44 The Nexus Hand has a...

Страница 29: ...We are the first company in the industry to offer remote firmware updates We know this is somebody s hand and a day without it is a massive inconvenience Our technology now allows users to update thei...

Страница 30: ...er items but it is also great for daily and manual tasks such as carrying bags pushing a shopping trolley or mowing the lawn 9 0 Grip Patterns Precision Grip Open Close These two grips use the thumb a...

Страница 31: ...rip Patterns Rock Grip This grip is not a functional grip The index and little finger remain extended while the middle two fingers flex in towards the palm with the thumb closing over them to give the...

Страница 32: ...nger Point Grip This grip enables the user to press buttons ring a doorbell use a smartphone or point out directions Fingers 2 3 and 4 flex in towards the palm the thumb closes to a fully flexed posit...

Страница 33: ...ly open the hand again Relaxed Grip This grip provides a natural resting position for when the hand is not in use The hand is open but the fingers and thumb are slightly flexed Phone Grip This grip is...

Страница 34: ...le and previous table respectively However the thumb can be mapped to any function depending on user preference The thumb has two open parked positions opposed and non opposed If the thumb is in a non...

Страница 35: ...p Pronate For a Left Hand Opposed to Non Opposed Tap the Right side of the thumb to move it left Non Opposed to Opposed Tap the Left side of the thumb to move it right For a Right Hand Opposed to Non...

Страница 36: ...mAh This means the battery can be folded in half without affecting the performance We kept the weight as low as possible our system only uses the two batteries which connect directly to the Control Pa...

Страница 37: ...vvi com Unit 4 Quayside Business Park Leeds LS10 1DJ 020 3949 9500 11 0 The COVVI Power Supply 2 Batteries Silicone Adhesive 2 Battery Dummies Velcro Control Panel Cutting Template Located in the fron...

Страница 38: ...com Unit 4 Quayside Business Park Leeds LS10 1DJ 020 3949 9500 11 0 The COVVI Power Supply AU EU AC USB C Plug Adaptor UK US CAUTION PRECAUTIONS FOR HANDLING ELECTROSTATIC SENSITIVE DEVICES Only use...

Страница 39: ...ce as this will avoid any unpredictable spikes in the electric current from the batteries Power on the Power Supply once the prosthetic device is properly connected to the prosthesis Do NOT expose the...

Страница 40: ...ds LS10 1DJ 020 3949 9500 11 0 The COVVI Power Supply 11 3 COVVI Power Supply Overview 2 pin Output Power Connector to EQD Battery Cell Battery Web Display Screen Power Button Control Panel Battery Co...

Страница 41: ...1 www covvi com Unit 4 Quayside Business Park Leeds LS10 1DJ 020 3949 9500 11 0 The COVVI Power Supply The 1600mAh batteries can be bent either way as the brown web is between the four cells 11 4 The...

Страница 42: ...irmation of calibration for two seconds in total Then the screen will show the current battery charge level for five seconds before going blank with the USB unplugged The system is now providing power...

Страница 43: ...r to choose between two display modes simple bars or a percentage charge When the USB is connected and powered press and hold the Power Button until the display starts to alternate between the two dis...

Страница 44: ...arge Indication 10 blocks equals 100 9 blocks greater than or equal to 90 8 blocks greater than or equal to 80 7 blocks greater than or equal to 70 or or or or 6 blocks greater than or equal to 60 or...

Страница 45: ...o 10 No blocks less than 10 When the system is charging it will show this screen 11 0 The COVVI Power Supply Should there be a fault with the Power Supply the following screen will appear Please turn...

Страница 46: ...and are designed to conveniently fit between the inner and outer socket wall and retained in place with the Velcro provided Lamination dummies are also provided if recesses are required in the outer s...

Страница 47: ...t the wires through the aperture before gently pressing the Control Panel into place The batteries can either be connected to the Control Panel prior to being fitted to the limb or after it is fitted...

Страница 48: ...aximum Current Draw 5A Peak Battery Unfolded Inches 3 9 x 1 8 x 0 28 Battery Unfolded mm 99 x 46 x 7 Battery Folded Inches 3 9 x 0 7 x 0 7 Battery Folded mm 99 x 18 x 18 System Weight 84 grams Includi...

Страница 49: ...y COVPS 2600 Typical Capacity 2600mAh Nominal Voltage 7 4V Maximum Current Draw 5A Peak Battery Size Inches 2 8 x 1 56 x 0 78 Battery Size mm 72 x 40 x 20 System Weight 130 grams Including Control Pan...

Страница 50: ...ovvi com Unit 4 Quayside Business Park Leeds LS10 1DJ 020 3949 9500 11 0 The COVVI Power Supply COVPS 1600 Shown CEL 50 CEL 60 CLAMRG 40 CLAMRG 45 CLAMRG 50 CWAK 40 CWAK 45 CWAK 50 COVPS 1600 COVPS 26...

Страница 51: ...s 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 the b...

Страница 52: ...we expect this to become noticeable after 12 months of use The COVVI Power Supply will support 300 charge and discharge cycles After this the time it takes to fully flatten the batteries will become...

Страница 53: ...re correct function it is important to inspect the Control Panel carefully and ensure that the USB C port is free of debris If debris is discovered please carefully remove this with a thin but non met...

Страница 54: ...ibility Recommendations Electrodes Ottobock Electrode 13E200 50 Yes Ottobock Electrode 13E200 60 Yes Ottobock Suction Socket Electrode 13E202 50 Yes Ottobock Suction Socket Electrode 13E202 60 Yes Ste...

Страница 55: ...COVVI website Steeper Espire Pro Elbow Please see COVVI website Steeper Espire Hybrid Elbow Please see COVVI website Steeper Espire Classic Elbow Please see COVVI website Steeper Espire Classic Plus...

Страница 56: ...Standard Wrist Rotator 5010045 black Please see COVVI website Fillauer MC ProWrist Rotator 5010056 black Please see COVVI website Pattern Recognition COAPT GEN2 BEMF AEMF Yes Must use Motion Control...

Страница 57: ...immunity of the Nexus Hand and result in improper operation WARNING Portable RF communications equipment including peripherals such as antenna cables and external antennas should be used no closer th...

Страница 58: ...nality of other prosthetic devices on the market for efficient interchangeability If your patient is a new user as they become more familiar and confident with their Nexus Hand they can test out diffe...

Страница 59: ...oth Bluetooth will need to be enabled on both the Nexus Hand and the mobile device before scanning can begin If Bluetooth is disabled on the mobile device the App will notify you When the Nexus Hand i...

Страница 60: ...or covers Click Connect to connect to your patient s Nexus Hand The first screen is Device Summary which summarises the key information about the Nexus Hand The Input Settings are to tailor the input...

Страница 61: ...input reading or two input readings If the user selects single site in operating modes the signal is shown on Input A If the user selects dual site the signals are shown on Input A and B Example Input...

Страница 62: ...his setup can make it more challenging to get fine control at lower speeds The closer the On and Max thresholds are the less speed control the user will have of the hand The Triggers at the bottom of...

Страница 63: ...very strong Input B signal and the option to modify the input gain allows them to increase channel A and at the same time reduce channel B to balance the speed output If a user has two weak inputs bot...

Страница 64: ...the data for 5 10 or 20 seconds All changes to the values will be immediately reflected on the Nexus Hand to allow users to test different options in real time and set up their hand to suit their pref...

Страница 65: ...ect the input type The Nexus Hand can be controlled by different sensor transducers Electrodes These are sensors that detect the user s muscle contractions A proportional voltage controls the opening...

Страница 66: ...modes available will depend on the user s selection in the previous section When the user only has one myo electric electrode site a strategy is required to open and close the Nexus Hand Single Site...

Страница 67: ...rt If a second signal is received before the time reaches 1 second the hand will continue to close but if a signal is received after 1 second the signal is assigned to an open action The grip switch t...

Страница 68: ...o If the hand is to be used with a COAPT system remove all grips from tables except the primary grip The patterns can then be mapped to the grips within the COAPT software Default Grip Tables Factory...

Страница 69: ...nd is fully open to change grips Long Hold Open A Long Hold Open signal is an open signal used to open the hand but is maintained after the hand is fully open to change grips Adding Grips To populate...

Страница 70: ...the input with the highest magnitude will be acknowledged as either an open or close signal If the hand is fully open a co contraction is outside of the required criteria and the signal with the highe...

Страница 71: ...ce or pulse to gently grasp objects It monitors the grip every half a second This icon signifies that auto grip function is enabled Index Hold The Force Sensitive Resistor in the thumb can be configur...

Страница 72: ...s back to an open position Display Options This is to enable or disable the display altogether The display gives the user information about the current state of their Nexus Hand including battery life...

Страница 73: ...reted as a grip switch trigger Long Hold Open Time This is the time an open signal must be maintained after the hand is fully open for it to be interpreted as a grip switch trigger Co Contraction Time...

Страница 74: ...fined Direction Change Time This is the time needed to pass for the signal to have a direction change Any signal sent within this time will keep the direction of the hand the same Open Open Time This...

Страница 75: ...configuration changes highlighting their before and after values To finalise the changes press Finish at the top right of the screen This will send the changes to their Nexus Hand and the user will ha...

Страница 76: ...verview of the user s set up It also allows users to edit specific settings and features directly rather than going through the Setup Wizard again Its primary use is when you have an established set u...

Страница 77: ...and All changes are made in real time This feature enables the user to report any issues they may be having with their Nexus Hand Clicking the Report A Bug option in the Device Summary screen will dis...

Страница 78: ...the new version number and a summary of the changes the update contains Click Start Update to download the new update to the Nexus Hand Once the update has finished downloading an option will appear...

Страница 79: ...the user to input into the App This can be done by connecting to their Nexus Hand shaking their mobile device selecting Custom Firmware Update and inputting the code Clicking Okay and Start Update wil...

Страница 80: ...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 81: ...claimed warranties Our obligation 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 r...

Страница 82: ...thin 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 not to claim o...

Страница 83: ...hat are covered and not covered under warranty Any product out of warranty that is sent in to COVVI will be evaluated by our Quality Department and quoted with repair parts and labour as required Once...

Страница 84: ...ct Customer Services so COVVI Ltd can perform a service and 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...

Страница 85: ...covvi com Unit 4 Quayside Business Park Leeds LS10 1DJ 020 3949 9500 18 0 Disposal Please check your local regulations prior to disposing any items to avoid having a detrimental impact on health and t...

Страница 86: ...llowing 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 States...

Страница 87: ...or on his behalf by a third party General Product Name COVVI Wrist Kit Legal Manufacturer Name on Label Covvi Ltd Unit 4 Direct House Quayside Business Park George Mann Road Leeds LS10 1DJ United Kin...

Страница 88: ...out by the manufacturer or on his behalf by a third party General Product Name COVVI Power Supply Legal Manufacturer Name on Label Covvi Ltd Unit 4 Direct House Quayside Business Park George Mann Road...

Страница 89: ...out by the manufacturer or on his behalf by a third party General Product Name NEXUS Hand Legal Manufacturer Name on Label Covvi Ltd Unit 4 Direct House Quayside Business Park George Mann Road Leeds...

Страница 90: ...rect House Quayside Business Park Leeds LS10 1DJ Phone 44 0 20 3949 9500 Email customerservice covvi com Website www covvi com v1 2 7 June 2021 Advena Ltd Tower Business Centre 2nd Flr Tower Street Sw...

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