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Nabtesco Hybrid Knee NI-C3 Series, Instruction Manual

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Nabtesco Hybrid Knee NI-C3 Series Instruction Manual Download Page 32

Contact 

Manufacturer

Nabtesco Corporation

Accessibility Innovations Company
Assistive Products Department

35, Uozalohama-machi, Higashinada-ku
KOBE, 658-0024, JAPAN
Phone:  +81-78-413-2724
Fax: 

+81-78-413-2725

http://welfare.nabtesco.com

Authorized representative for EU countries

NABMIC  B.V.

Brouwerstraat  34, 2984 AR Ridderkerk The Netherlands
Phone:  +31-180-530-590
Fax: 

+31-180-530-591

Summary of Contents for Hybrid Knee NI-C3 Series

Page 1: ...hydraulic and pneumatic control and computer control For safe use be sure to read this manual and familiarize yourself with the Hybrid Knee Carefully keep this manual conveniently available for future...

Page 2: ...ctor 10 3 2 4 Precautions on Socket Forming 11 4 Adjustment 12 4 1 Adjusting the Stance Phase Control 12 4 1 1 Adjusting the Hydraulic Resistance 13 4 1 2 Walking on a Level Floor 15 4 1 3 Adjusting S...

Page 3: ...ce of this symbol which if not avoided could result in serious injury Indicates a potentially hazardous situation caused by nonobservance of this symbol which if not avoided may result in minor or mod...

Page 4: ...the knee DO NOT touch the knee when extending it The hand can be caught causing injury Never attempt to disassemble or modify Hybrid Knee Failure to observe this warning can cause breakage of parts l...

Page 5: ...resulting in failure of the unit DO NOT drop parts such as a screw in the frame Continued use after any part is dropped will cause damage of a pneumatic cylinder impeding normal walking Be sure to att...

Page 6: ...l section Printed circuit board Stepping motor Battery Stance phase control section 2 Basic Construction and Operational Principle 2 1 Basic Construction Hybrid Knee has accomplished sophisticated int...

Page 7: ...linder functions providing cadence responsive swing control 2 3 Stance Phase Control When a knee is exed the hydraulic rotary damper produces hydraulic resistance thus preventing abrupt buckling to oc...

Page 8: ...e supported There is a risk that knee buckling may take place causing falling down For safe use fully understand the operational principle and proper walking method and provide the amputee with instru...

Page 9: ...lled out In other words readjustment is not required even when the battery is replaced When walking stops When an amputee stops walking for 8 seconds or more the needle valve is automatically set to t...

Page 10: ...As shown in Fig 7 complete alignment so that the weight load line passes the range of 0 to 10 mm in front of the center of the knee axis of the knee joint Hybrid knee 1 Dedicated lithium battery 1 al...

Page 11: ...ce is within 0 05 mm Before inserting the battery connector be sure to elimi nate static electricity by for example touching a desk Connecting the adjustment unit perform reset Con rm that motor sound...

Page 12: ...orming make sure that neither the socket nor parts touch the pneumatic cylinder when the knee joint is exed to the fullest extent Failure to do so may cause damage to the pneumatic cylinder adversely...

Page 13: ...ansiting to stance phase At the time when the yield duration is insuf cient Effect When to perform adjustment A Hydraulic sensitivity adjusting plug B A B Time Hydraulic resistance Strength A Time Hyd...

Page 14: ...c resistance becomes lower at the stance phase Adjust by using scale readings as a guide Read the scale at the mark on the window Fig 11 How to Adjust Hydraulic Resistance Adjusting scale as viewed th...

Page 15: ...OFF ON Body weight shift ON Sustainable 1 Make sure that the scale reads 10 at the projection on the window Then let the amputee stand within parallel bars Fig 12 3 Have the amputee feel two differen...

Page 16: ...phase 3 When the amputee becomes familiar with walking perform gait training outside the parallel bars When sticking occurs make an adjustment according to the troubleshooting method see pages 22 and...

Page 17: ...damaged Sensitivity is set to the standard condition at the factory When no problem exists adjustment is unnecessary Fig 14 Adjusting Sensitivity Referring to the gure below turn the sensitivity adju...

Page 18: ...Fig 15 Fixing Procedure of the Cushion Valve 1 As shown in Fig 15 turn the cushion valve with a hex wrench 2 mm Clockwise Cushion effect is enhanced and impact is reduced Counterclockwise Cushion eff...

Page 19: ...lding function to work unintentionally resulting in sticking Cushion adjustment should be made in consideration of swing strength of each amputee As a general rule however set to the value in the mark...

Page 20: ...falling down In order to make the yielding function effective be sure to touch the oor with the heel rst If the toe touches the oor rst there is a risk of occurrence of knee buckling resulting in fall...

Page 21: ...not sustainable make ne adjustment of the sensitivity adjusting screw J See 4 1 3 page 16 Adjustment for descending stairs if applicable Adjustment of hydraulic resistance Select an appropriate stren...

Page 22: ...lic unit causing serious injury For ease of standing up from a chair placing hands on the armrests or on the seating face is recommended In addition to the above placing a hand on the socket or placin...

Page 23: ...sed position J See 4 1 3 page 16 Check if alignment is proper Adjust so that body weight can be fully applied to the heel Check if the foot is appropriate Select a foot with which body weight can be f...

Page 24: ...iffness The above measures can not resolve the problem Contact your local sales representative dealer Yielding function is not sustainable when the amputee descends a slope Even if the knee is fully e...

Page 25: ...eakage Fig 19a Fig 19b 6 Maintenance 1 While exing the knee joint approximately 90 remove the extension stopper rubber As a double sided tape is attached on the back of the extension stopper rubber it...

Page 26: ...icity by for example touching a desk before starting this work Fig 20 Removing the Battery Connector Fig 21 Removing the Clamps 1 Remove the battery connector from the circuit board Fig 20 2 Loosening...

Page 27: ...into the battery case Note When inserting a battery align the battery wire with the slit of an inner clamp If the battery is placed in the reverse side the battery can not be inserted fully Fig 23 6...

Page 28: ...imity switch connector which exists behind the substrate 2 Retracting the cylinder rod and creating space by exing the knee slowly insert the cylinder module into the frame 4 Flexing and extending the...

Page 29: ...28 Trunnion pin Clevis bolt Trunnion pin Rod Proximity switch connector behind the substrate Fig 24 Removing Installing the Cylinder Module...

Page 30: ...tional intelligent knee joint Battery life time is approximately 2 years Note Battery life time varies according to walking pattern of each amputee The battery life time of 2 years is based on a gener...

Page 31: ...Warranty The warranty period is 2 years from the date of sale by your local sales representative dealer on the condition that periodic inspections for the 1st year are implemented Be sure to receive...

Page 32: ...Products Department 35 Uozalohama machi Higashinada ku KOBE 658 0024 JAPAN Phone 81 78 413 2724 Fax 81 78 413 2725 http welfare nabtesco com Authorized representative for EU countries NABMIC B V Brouw...

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