Technologies For Your Smile Advanced 6-Bar Mechanism Stance-Flexion, Adjustable Geometrical Lock System p- MRS system Manual Lock CONFIDENTIAL NK6 + L+

Technologies For Your Smile

Advanced 6-Bar MechanismStance-Flexion, AdjustableGeometrical Lock Systemp-MRS systemManual Lock

CONFIDENTIALCONFIDENTIAL

NK6 ++ LL6-bar Hydraulic Knee6-bar Hydraulic Knee


Concept

SafetyIn Stance

4-Bar IPDyn

am

ics

In S

win

g

Hybrid KneeSingleAxis IP

NK-1

NK6


NK-6 StructureNK-6 Structure

1

23

4

56

Manual Lock Switch(Option)Hydraulic Cylinder

-Flexion Adj. -Extension Adj.

Bouncing Dumper Extension Assist Adjustment

Dumper Stiffness Adjustment Screw



p-MRS Systemp-MRS System(Polycentric - (Polycentric - MMechanism of echanism of RReaction-force eaction-force SSensing)ensing)

Bounce ModeGeometric Lock

Swing Mode

ICR



Stance Phase ControlStance Phase Control

Lock Lock + Bouncing+ Bouncing

Heel Strike Mid Stance Toe Off (Swing)

UnlockedUnlockedFor SwingFor Swing

ICRfor Swing



Manual Lock (Optional)Manual Lock (Optional)

The user can manually lock the knee whenever the safety is needed, for example, in working on ladder, in walking on snowy road, gardening.

Even when knee is locked, the bouncing feature is still available.

Unlocked Locked



Swing Phase ControlSwing Phase Control

Hydraulic Cylinder Adjustable Flexion & Extension Resistance By the special design and the layout of the Hydraulic cylinder,

the initial swing is very light and smooth

Extension Assist Spring to provide more tension to keep full extension Adjustable



Swing Phase ControlSwing Phase ControlHydraulic Cylinder Features (Flexion)Hydraulic Cylinder Features (Flexion) CONFIDENTIALCONFIDENTIAL

Knee Angle

Kne

e T

orqu

e in

Fle

xion

40 deg 60deg

NK-6

Conventional Hydraulic Swing

0

• Initiating swing-phase is very smooth compared with conventional hydraulic knee.

• Initiating swing-phase is very smooth compared with conventional hydraulic knee.

• Very wide cadence response (70% of that the Intelligent Knee has)

• Very wide cadence response (70% of that the Intelligent Knee has)


Swing Phase ControlSwing Phase ControlHydraulic Cylinder Features (Extension)Hydraulic Cylinder Features (Extension) CONFIDENTIALCONFIDENTIAL

Knee Angle

Kne

e T

orqu

e in

Ext

ensi

on

30 deg 60deg

NK-6

Conventional Hydraulic Swing

0

• Dual Hydraulic Circuit is introduced for the Extension.• Dual Hydraulic Circuit is introduced for the Extension.

• At the final 30 degree, a higher resistance, adjustable, will be activated for cushioning against the terminal-impact.

• At the final 30 degree, a higher resistance, adjustable, will be activated for cushioning against the terminal-impact.

• This feature leads to very smooth swing back motion.• This feature leads to very smooth swing back motion.


SpecificationsSpecifications

MODEL NK-6 NK-6+L

Functions Multi axial Hydraulic Knee Unit (6-Bar

system) Geometrical Safety Lock System Stance Flex, adjustable Stance Extension Dampening by a

Hydraulic cylinder Titanium Heavy-Duty Frame Manual Lock System (NK-6+L)

Weight Limit 100kg (220lb)

Knee Body Weight: 850g Knee R.O.M.: 160 degrees


19

7m

m

28

mm

Screw Head version available


Static AlignmentStatic Alignment

Anterior-Posterior Plane Base point: Upper Frontal Pivot -5 ~ +5 mm from the center of Base

point Anterior side: Dynamic (less stable) Posterior side: More Stable

Medial-Lateral Plane Weight line should be passed through

the center of the knee


+5mm -5mm

STABLE Dynamic

W.L.

Technologies For Your SmilePositioning

NK-1HNK-1H

Single Axis Intelligent KneeSingle Axis Intelligent Knee

4-Bar Intelligent Knee4-Bar Intelligent Knee

Hybrid KneeHybrid Knee

Low ActiveLow Active Mid ActiveMid Active High ActiveHigh Active

NK-1HsNK-1Hs

NK-6NK-6


Comparison

Name 3R60 NK6 Total Knee

Number of Link 5-Bar 6-Bar 7-Bar

Documents

Technologies For Your Smile Advanced 6-Bar Mechanism Stance-Flexion, Adjustable Geometrical Lock System p- MRS system Manual Lock CONFIDENTIAL NK6 + L+