Otto Bock Kenevo 3C60 Reference manual

Kenevo 3C60
Global Academy
Introduction V 1.4

| © Ottobock
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 2
Those who walk very slow, but always follow the
right path, can get much further than those who
run and get carried away.
René Descartes

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Overview
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 3
1. Introduction
2. Basic functions
3. Activity modes
4. Component selection
5. Alignment and adjustment
6. User instructions
7. Service and warranty concept
8. User training
9. Cockpit App

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Introduction
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 4
The development of the Kenevo
•The goal when creating the 3C60 was to
create a knee joint with special
functionalities to address the unique
needs of the low mobility population
•Some functions are based on well
established principles (e.g. default stance)
•Most functions are the result of specially
developed technologies and algorithms
(e.g. Stumble recovery plus, activity
modes, wheelchair function, intuitive
bicycle ergometer function)

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Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 5
Introduction
Technology
Tube clamp
Inertial Motion Unit (acceleration
sensors and gyroscope)
Inductive charger
Servo-electronics
Battery / knee angle sensor
Hydraulic
Main electronics
Bluetooth
Tube stop
Ankle moment /Axial load sensor

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Introduction
•The intelligent AXON tube adapter
has an integrated micro processor
•Sensor data is continuously
processed
•Measurement of:
−Axial load
−Ankle moment
•Manual calibration necessary!
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 6
Technology

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Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 7
Introduction
Technology
Detected parameters (sampling rate: 100 Hz)
•Knee angle sensor
–Knee angle (+ angular velocities)
•Inertial Motion Unit (IMU)
–3D Gyroscope
–3D Acceleration sensor
•Ankle moment and axial load sensor
–Axial load
–Ankle moment
x
y
z

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Introduction
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 8
Technical overview
Notation:
3C60 / 3C60=ST
Weight:
915 g / 2.0 lbs
Amputation
level:
KD / TF / HD
ROM:
125°
Mobility grade:
1 / 2
Integrated:
Bluetooth
Build height:
Distal: 256 –472 mm
Prox. 3C60: 23 mm
Prox. 3C60=ST: 23 mm
Operation
time:
approx. 1 day of
average use
(recommended to
charge every night)
Maximum user
weight:
125 kg / 275 lbs
Water
protection:
IP22
(protected against
dripping water, not
corrosion resistant)

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Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 9
Introduction
Technical overview
125°
70 mm
A-P width when flexed 90°
5°

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Introduction
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 10
Technical overview
Minimum build height Insertion depth
Maximum build height
min = 256 mm
max = 75 mm
min = 40 mm
min = 279 mm
max = 495 mm
min = 472 mm 23 mm
23 mm

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Introduction
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 11
Technical overview
Minimum distal system height Insertion depth
Maximum distal system height
max = 75 mm
min = 40 mm
min = 274 mm
max = 490 mm

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Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 12
Introduction
Activity modes (set by the CPO)
AC
Locked knee joint Semi locked knee joint Yielding knee joint
B/B+
S

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Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 13
Introduction
Basic functions
In general
•Always active
•Created for mobility grades 1 + 2
•Intuitive to engage
Wheelchair
function Safety
features
Bicycle
ergometer
function
Sitting
function Stance function
(Mode C)
S
Supported
sitting down /
standing up
Donning
Function
(A/B/B+)

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Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 14
Introduction
•With three programmable
activity modes (A, B & C), the
knee joint can progress with the
user during rehabilitation or
address the need for increased
stability
•The user is optimally supported
during the individual phases of
mobility
The three activity modes
A
C
B/B+

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The knee joint is locked in every phase of gait (no swing phase possible)
and ensures full weight bearing, especially for tentative users.
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 15
Introduction
Locked Mode
10°
A
Stance phase Swing phase

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During stance phase the joint is locked. Stance is released late in terminal
stance to allow knee flexion during swing phase.
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 16
Introduction
Semi-Locked Mode (without stance flexion)
10°
Stance phase Swing phase
B

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During stance phase, slight flexion of the knee joint is allowed (up to 10°).
Stance is released late in terminal stance to allow knee flexion during swing.
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 17
Introduction
10°
Stance phase Swing phase
B
10°+

| © Ottobock
During stance phase, slight flexion of the knee joint is allowed (up to 10°).
Stance is released in terminal stance to allow knee flexion during swing.
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 18
Introduction
Yielding Mode
10°
Stance phase Swing phase
C

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Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020 19
Introduction
Functional overview
Mode A Mode B / B+ Mode C
Stance phase Locked Locked / 10°flexion High resistance
Swing phase Locked Free Free
Stumble Recovery Plus No Yes Yes
Additional support on stairs/ramps No No Yes
Supported sitting down / standing up Yes (active in all modes)
Sitting function + Wheelchair lock Yes (optional in all modes)
Bicycle ergometer function
Standing function
Donning function
Yes (optional in all modes)
Yes
NoNo
No
YesYes

| © Ottobock
Introduction | Kenevo 3C60 | Prosthetic | Global Academy | 19.10.2020
Introduction
•Depending on the user’s needs, the CPO
can set and adjust one of three activity
modes
•Individual adaptation of knee joint functions
to the safety requirements of the user during
rehab and in daily life
•Stumble recovery Plus: Stumble recovery
during the whole swing phase
•Additional support during walking down on
stairs and ramps
→Increasing stance flexion resistance
→This causes a slower and more
controlled walking down
Maximum safety
A
C
20
B/B+