Fabtech Crossover Extensible Knee Owner'S Manual Download Page 8 | Manualshive

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Crossover™ Manual V1/62920016 ©Fabtech Systems LLC. All Rights Reserved.

General Knee Description

Designed exclusively for lower limb prosthetic fittings, the Crossover™ knee is a monocentric (single axis)
articulated Extensible knee that can be used for general ambulation or—with simple additions/adjustments—
can be used for high activity sports. Designed similar to the Mauch S-N-S knee unit, the Crossover™ knee
has the advantage of having the ability to add a patented highly adjustable Tendon and Three-Position X/
CAM™ system when the user wants to participate in high activity sports or other activities.

Design Features & Function



Single-axis pneumatic/hydraulic knee system with swing and stance control adjustments



Designed for multispeed ambulation and sport activities



Adjustable Variable Extension Dampening “VED” bumper system (kneeling and impact)



Multi-faceted mode selector to control flexion and extension



Patented urethane tendon and Three (3) Position X/CAM™ system, offering infinite tunable resistance
and return in a removable Extensible format



Crossflex™ preflexion foam wedges for sport activities. Three pack kit comes in 20°, 30° and 40° degree
wedge settings



Removable ABS protective impact cover



Ultra lightweight CNC machined 6061-T aircraft aluminum frame with stainless steel inserts



Oilite™ self-lubricating bushings:



No maintenance with increased durability



Smooth motion in light use or heavy impact situations



Reduced play



All parts serviceable



Water and salt water resistant

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Summary of Contents for Crossover Extensible Knee

Page 1: ...e latest information for this model as of June 2016 Future minor differ ences due to developments in the knee design cannot be ruled out completely All specifications are non binding LEFTSIDE Industries Leftside specifically reserves the right to modify or delete technical specifications prices colors forms materials services designs equipment etc without prior notice and without specifying reason...

Page 2: ...ed 1 Multidurometer impact kneeling pads 2 ABS protective cover 3 ABS protective X CAM covers 4 Rubber socket flexion limiters 5 Urethane lower frame bumpers 6 Easy to access On Demand shock controls 7 RT3 pneumatic hydraulic shock Crossover Knee Walking Configuration ...

Page 3: ...endons 3 X CAM 3 position guide wheels 4 Urethane lower tendon guide wheels 5 Lower tendon retaining clamp 6 Multidurometer impact kneeling pads 7 ABS protective cover system 8 SS removable X CAM locking pin 9 Rubber socket flexion limiters 10 RT3 pneumatic hydraulic shock 11 Tendon lock plate Crossover Knee Sport Configuration ...

Page 4: ... kneeling pads 2 Urethane lower tendon guide wheels 3 Urethane lower frame bumpers 4 X CAM 3 position guide wheels 5 Lower tendon retaining clamp 6 Urethane tendons 7 X CLIP removable composite tendon connectors 8 RT3 shock pump 9 ABS X CAM cover 10 ABS protective cover knee frame 11 RT3 pneumatic hydraulic shock ...

Page 5: ... Crossflex Preflexion Wedges 1 20 Crossflex wedge 2 30 Crossflex wedge 3 40 Crossflex wedge When installing Crossflex preflexion wedges take care as to not tear the foam section that locks into the knee unit Note For instructional video visit www leftsideindustries com ...

Page 6: ...Rights Reserved Lower Tendon Connector 1 Placement of tendons into lower connector 2 Back locking plate attached to connector 3 Lower tendon connector 4 Lower tendon connector in open position 5 Lower tendon connector in closed position with locking plate ...

Page 7: ...dges 8 VED Variable Extension Dampening System 8 Alignment and Initial Ambulation Settings 9 14 Alignment and First Time Knee Set Up 10 Understanding Shock Controls 11 12 Walking the Patient and Adjusting the Shock 13 14 Sports Set Up 15 17 X CAMs 15 Lower Tendon Guide Rollers 15 Lower Tendon Retaining Connector 16 X CLIP Upper Tendon Connectors 16 Tendons Set Up 17 Crossflex Preflexion Wedges Set...

Page 8: ...matic hydraulic knee system with swing and stance control adjustments Designed for multispeed ambulation and sport activities Adjustable Variable Extension Dampening VED bumper system kneeling and impact Multi faceted mode selector to control flexion and extension Patented urethane tendon and Three 3 Position X CAM system offering infinite tunable resistance and return in a removable Extensible fo...

Page 9: ...ree 3 position X CAMs with removable hardware 2 pair urethane lower frame tendon guide wheels for sport configuration 2 pair urethane lower frame bumper stops for ambulation configuration Tendon connector placement template User manual Note Consumable Products The following items are classified as Consumable Products and will require replacement when visual wear cracks or tears are present See Per...

Page 10: ... skiing Wakeboarding Wind surfing Surfing SUP Kite boarding Scuba diving Rowing crewing Swimming Summer Sports Mountain biking Road cycling Skate boarding Inline skating Backpacking Fighting sports Hiking Golf Beach days Moto Sports Moto cross Enduro and trail Motorcycle ADV Snowmobile Rehabilitation Build muscle Weight lifting squatting Promote general fitness Increase active quality time with fa...

Page 11: ...e hinged lower tendon connector with lock no need to remove feet ABS impact covers for sport and ambulation Multi durometer Variable Extension Dampening VED bumper system Kneeling pad 3ea Crossflex adjustable pre flexion position wedges Oilite bushings that require no service Demo trial program Technical Specifications Maximum weight 125kg 275lbs Net weight 908g 2lbs Frame size 20cm 8 inches 8 to ...

Page 12: ...n and ex tension adjustments Variable Extension Dampening VED bumper system is also used to address stance phase Sport Configuration In the sport configuration the Crossover knee functions the same as in the ambulation noted above But when combined with the relatively linear spring rate of the tendons and X CAM system the Crosso ver delivers a smooth even energy absorption and return It is this sm...

Page 13: ...n X CAM guide wheels and lower tendon connector Only one tendon durometer is needed with the Crossover knee One OR two tendons may be used at a time The primary goal in setting selections is to find the winning combination that provides the optimal flexion resistance and extension assistance that will balance forces like a natural leg for the activity the user is doing The idea is helping but not ...

Page 14: ...h lower preflexion resistance allowing them to conserve much needed energy while still providing the power and support needed flexing 25 degrees and beyond Each X CAM offers three levels of progression and an additional 4th non pinned option on each side and can be used with the Crosso ver tendons in singles or pairs These selections offer an unsur passed series of options within the full range of...

Page 15: ...m that is user added to change the preflexion angle position per sport activity Different sports require different preflexion settings Snowboarding for example may require 30 whereas mountain biking may do better at 10 Crossflex wedges are designed to act like knee cartilage and pro vide a small amount of compression absorption This feature absorbs a small percentage of impact energy keeping it fr...

Page 16: ... sure the patient is in parallel bars for safety as the knee will be in free swing with no or very little re sistance in the initial set up phase 1 Unpack the box and make sure all items are in the package 2 Remove air cap on shock and remove any residual air pressure Depress valve to remove air Figure 1 3 Set all shock settings to the zero position Page 11 12 4 Remove protective covers for easy a...

Page 17: ...nment reference line bisects the lateral wall at the ischial level of the socket and falls through or slightly posterior to the knee axis Establish the correct length of the prosthesis If the weight line is too far anterior to the knee axis the knee may require much more effort to create a hyperextension moment that will engage the knee axis and allow for fluid initiation of the knee flexion Prema...

Page 18: ...are labeled as the following Figure 3 10 O clock Unlock 2 O clock Pedal 6 O clock Lock Figure 3 Most common setting for ambulation 10 O clock position Lowest flexion resistance Unlock Figure 4 Additional settings most commonly used to address ambulation on un even terrain stairs and steep declines 2 O clock position Medium flexion resistance Pedal Figure 5 6 O clock position Highest flexion resist...

Page 19: ...dial rebound adjuster has ten positions with audible tactile clicks Clockwise rotation slow extension rebound Counter clockwise rotation faster extension rebound Air Pressure Air pressure influences flexion and extension based on the amount of air pressure added to the shock High air pressures create more resistance and are better for heavy impact sport Lower air pressures create less resistance a...

Page 20: ...allel bars They should feel a slight resistance in the shock This is a good starting point for ambulation tuning The first adjustment to address is extension Adjust the red dial either COUNTER CLOCKWISE faster extension or CLOCKWISE slower extension from the original 7 O clock home position Find the desired extension speed of the knee while walking the patient in the parallel bars Move the dial on...

Page 21: ...ty when desired without the need to add more air to the shock Step 4 While walking the patient and changing adjustments as needed determine whether or not 10 psi is a good air pressure for your patient s ambulation needs If more air pressure is required add more air with the air pump When adding air go up at a scale of 5 10psi if you are close to where you d like the patient to be If not close jum...

Page 22: ...o the X CAM sport mode con figuration This conversion can be done in just minutes while the patient is wearing the knee with a rotator device this is suggested in the knee or simply by removing the leg and making these changes Required Tools 3 4 5mm Allen wrench Phillips screwdriver Step 1 X CAMs Using a 3mm Allen tool remove the screws on both side covers Place in bag for safe keeping Using a 4mm...

Page 23: ...s up with the drive groove in the guide wheel Placement of the X CLIP connectors on the socket is recommended to be 5 12 7cm to 9 22 86cm from knee center Keep this in consideration if you are building a new socket If this is not possible lower is better if you have room to slide the lower tendon connector down to increase tension Once placement of template has been checked horizontally and vertic...

Page 24: ...re that the ball is completely secured into the recessed position of the lower connector Reat tach the locking back plate and torque screws to 8mm Finally extend the prosthesis to full extension Now stretch the tendon Lift and Set onto the tendon guide wheel groove making sure that tendon is not rolled into the groove as it will want to twist out of groove Also check that the tendon is seated behi...

Page 25: ...Knee Ambulation Crossflex Wedge Flexion Resistance Extension Speed X CAM Position Air Pres sure Walking Community ambulation N A Unlock 10 Pedal 2 Medium to Slow N A 5 30psi Winter Sports Alpine Skiing 20º 30º Pedal 2 Lock 6 Medium to Slow 1st 2nd 15 60psi Telemark Skiing 30º 40º Pedal 2 Lock 6 Medium to Slow 2nd 3rd 15 80psi Cross Country Skiing 20º Unlock 10 Pedal 2 Medium to Fast 4th 1st 15 60p...

Page 26: ...th 1st 5 30psi Swimming N A Unlock 10 Fast N A 15 60psi Summer Sports Mountain Biking DH 20º 30º Pedal 2 Lock 6 Medium to Slow 3rd 3rd 25 165psi Mountain Biking XC 20º 30º Unlock 10 Pedal 2 Medium to Slow 1st 2nd 15 60psi Road Biking 20º Unlock 10 Pedal 2 Medium to Fast N A 15 80psi Skate Boarding None to 20º Pedal 2 Lock 6 Medium to Fast N A 15 100psi Inline Skating None to 20º Pedal 2 Lock 6 Med...

Page 27: ...spect the knee before each use Check the knee for Loose or missing bolts or screws Proper air pressure as indicated by your prosthetist determined during knee set up for the corre sponding activity you intend to do Cracks or damage to protective covers Tear or damage to a rubber tendons and rubber pads Carbon attachments secured to socket Periodic Maintenance Schedule To maintain the high performa...

Page 28: ... and lubricated 8 NA Remove clean and grease mounting hardware 20 NA Clean and inspect extension preflexion spacers Replace if necessary 20 NA Inspect eyelet bushings and mounting hardware for wear and play Replace if necessary 100 Annually Replace all seals 100 Annually Inspect shaft reservoir damper body and air can for scratches or damage if applicable Replace if necessary 100 Annually Replace ...

Page 29: ...vity NA Keep mounting hardware clean and lubricated After every sport activity NA Remove clean and grease mounting hardware After every sport activity NA Inspect eyelet bushings and mounting hardware for wear and play Replace if necessary 30 As indicated by damage or wear Replace all seals 30 Annually Inspect shaft reservoir damper body and air can for scratches or damage if applicable Replace if ...

Page 30: ... warranty Please refer to maintenance service charts Urethane tendons Variable Extension Dampening bumpers Protective ABS cover Crossflex adjustable pre flexion wedges Shock See shock warranty Shock Warranty SRAM LLC WARRANTY EXTENT OF LIMITED WARRANTY Except as otherwise set forth herein SRAM warrants its products to be free from defects in materials or work manship for a period of two years afte...

Page 31: ...tallation in conditions or applications oth er than recommended Wear and tear parts are identified as Dust seals Bushings Air sealing O rings Glide rings Rubber moving parts Foam rings Rear shock mounting hardware and main seals Snow Water The Crossover knee is designed to be used in wet conditions To ensure a long lifespan the unit should be rinsed with clean water after it has been used in salt ...

Page 32: ...t WA 98203 Technical Support Call 1 800 322 8324 9 00AM 5 00PM PST L Code Information Phone 1 800 322 8324 Email staff fabtechsystems com 9 00AM 5 00PM PST Component Options and Creative Solutions Visit www leftsideindustries com for information on Low profile adaptors Feet for specific activities Mounting carbon clips on flat base with adhesive Short sockets HiFi strut sockets removable bridge Ti...

Page 33: ... Pair PN C107 Urethane Lower Tendon Guide Wheel 2ea Pair PN C108 X CLIP Carbon Attachment Clip 2ea Pair PN C109 X CAM Guide Wheels Hardware 2ea Pair PN C110 30mm Hinged Lock Lower Tendon Connector PN C111 RT3 Hydraulic Shock PN C112 Protective ABS Cover 3 piece hardware PN C113 Crossflex Preflexion wedges 20 30 40 degree kit PN C1S PLUSeries Composite Adhesive 50ml PN G50 PLUSeries 50ml Dispensing...

Page 34: ...achment boxes out position the center line on the anterior aspect of the socket aligned to the rotation of the knee unit The recommended height placement is 5 9 from the center of the knee This is the recommended position of the proximal connectors Center of ball Cut out this square Cut out this square 5 to 9 from knee center to center of tendon ball 27 ...

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