development - jasti
TRANSCRIPT
Development report• JASTI has been improved Flex‐PLI GTR.• Main target of renewed and improved points
1. Tibia and Femur Bones production quality improvementPrepare a specialized injection gate and method.Result; Production can control Thickness, Bent, Surface. No cut surface to make flat and straight beam as production.
2. Durability & Repeatability To use produced condition without cut result the original surface protect any crack, damage, and keep strength, as durability and repeatability.
Check items; Vf, Dimension, Bent, Surface
Femure Bone
w1 w2 w3 w4 w5 Average t1 t2 t3 t4 t5 Average L1 L21 39.82 39.77 39.75 39.78 39.73 39.77 10.63 10.64 10.64 10.64 10.67 10.64 352.05 351.922 39.76 39.77 39.84 39.80 39.78 39.79 10.62 10.70 10.96 10.77 10.74 10.76 351.91 351.923 39.79 39.78 39.81 39.72 39.72 39.76 10.70 10.79 10.73 10.69 10.69 10.72 351.98 351.894 39.76 39.75 39.75 39.75 39.73 39.75 10.68 10.69 10.68 10.66 10.64 10.67 351.95 351.935 39.76 39.76 39.75 39.77 39.75 39.76 10.74 10.73 10.72 10.73 10.72 10.73 352.01 351.956 39.77 39.73 39.72 39.72 39.73 39.73 10.72 10.72 10.68 10.76 10.70 10.72 351.96 351.807 39.77 39.77 39.77 39.81 39.81 39.79 10.66 10.62 10.65 10.60 10.65 10.64 351.94 351.888 39.76 39.75 39.77 39.78 39.79 39.77 10.65 10.75 10.72 10.75 10.75 10.72 351.91 351.939 39.78 39.75 39.76 39.78 39.75 39.76 10.69 10.72 10.75 10.72 10.71 10.72 351.95 351.94
10 39.77 39.78 39.89 39.74 39.76 39.79 10.72 10.71 10.72 10.69 10.66 10.70 352.00 351.89
Tibia Bone
w1 w2 w3 w4 w5 Average t1 t2 t3 t4 t5 Average L1 L21 39.75 39.87 39.78 39.77 39.77 39.79 10.70 10.74 10.73 10.73 10.71 10.72 432.29 432.242 39.75 39.73 39.69 39.64 39.79 39.72 10.64 10.70 10.71 10.70 10.76 10.70 432.29 432.263 39.73 39.72 39.77 39.75 39.77 39.75 10.68 10.68 10.70 10.70 10.74 10.70 432.00 432.264 39.77 39.79 39.78 39.77 39.75 39.77 10.74 10.71 10.70 10.70 10.80 10.73 432.26 432.365 39.76 39.78 39.75 39.75 39.72 39.75 10.75 10.71 10.62 10.63 10.65 10.67 432.37 432.336 39.76 39.73 39.76 39.75 39.74 39.75 10.67 10.68 10.88 10.63 10.70 10.71 432.33 432.257 39.70 39.75 39.75 39.70 39.72 39.72 10.69 10.68 10.70 10.60 10.68 10.67 432.01 432.128 39.72 39.77 39.75 39.76 39.79 39.76 10.68 10.73 10.72 10.75 10.73 10.72 432.30 432.339 39.82 39.76 39.79 39.76 39.75 39.78 10.69 10.71 10.71 10.63 10.66 10.68 432.20 432.28
10 39.73 39.76 39.77 39.75 39.76 39.75 10.66 10.71 10.67 10.67 10.66 10.67 432.39 432.33
Widdth [mm] Thickness [mm]
40.00 10.75
Length [mm]
352 .00
432 .00
Length [mm]
Widdth [mm]
40.00
Thickness [mm]
10.75
Lot.No
Lot.No
Target
Target
Flex‐PLI GTR Beam production quality inspection sheet
t1 t2 t3 t4 t5
W1 W2
W3
W4
W5
10
10
L1
L2Lot
26 95 95
Tibia Bone
W2
W3
W5W4
L2
L1
W1
10
10
7575
t2 t3 t4 t5t1 Lot
26
Femure Bone
Fig.1 each measured points
Static Test result
1. Bone core bending testThis test is only reference test while we develop Tibia and Femur bones.Test sample; Vf51%,52%,53%,55%
2. Assembly Bending Test ResultFemur Assembly; Vf52%Tibia Assembly; Vf51%
1)Femur & Tibia Static Certification Test① Bone Core Bending Test (Reference Test)
0
50
100
150
200
250
300
350
400
0 2 4 6 8 10 12 14
Bend
ingMom
ent : M
c ( N
m )
Deflection : Dc (mm )
Femur Bone Bending Test (Vf51%, 52%,53%,55%)
VF55%VF53%VF52%VF51%
0
50
100
150
200
250
300
350
400
0 2 4 6 8 10 12 14 16 18 20 22
Bend
ing Mom
ent : M
c ( N
m )
Deflection : Dc (mm )
Tibia Bone Bending Test (Vf51%,52%,53%,55%)
VF55%VF53%VF52%VF51%
0
50
100
150
200
250
300
350
400
450
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Bend
ing Mom
ent : M
c ( N
m )
Deflection : Dc (mm )
Tibia Ass'y Bending Test ( Vf51% , 55% )
VF55%VF51%UpperLower
0
50
100
150
200
250
300
350
400
450
0 2 4 6 8 10 12 14 16 18 20
Bend
ing Mom
ent : M
c( N
m )
Deflection : Dc ( mm )
Femur Ass'y Bending Test ( VF51% , 52% , 55% )
VF55%VF52%VF51%UpperLower
② Ass’y Bending Certification Test
Test Result Femur→Vf52% Tibia→Vf5% are selected for further Pendulum test
2) Knee Joint Static Certification Test
0
50
100
150
200
250
300
350
400
450
0 5 10 15 20 25 30
Bend
ing Mom
ent : M
c (Nm)
Elongation : MCL (mm)
Knee Joint_MCL
MCL
Upper
Lower
‐2
0
2
4
6
8
10
12
0 1000 2000 3000 4000
Elon
gatio
n : A
CL (m
m)
Force : Fc (N)
Knee Joint_ACL
ACL
Upper
Lower
‐2
0
2
4
6
8
10
12
0 1000 2000 3000 4000
Elon
gatio
n : PCL (m
m)
Force : Fc (N)
Knee Joint_PCL
PCL
Upper
Lower ☆Knee Joint tests are all passed
3) Dynamic Lower Leg form Impactor Certification Test (n=3)① Pendulum Certification Test (Maximum Bending Moment)
235
272
‐100
‐50
0
50
100
150
200
250
300
‐100 0
100
200
300
400
500
600
700
800
900
1000
Bend
ing Mom
ent (Nm)
Time (ms)
Tibia 19/13
9/14①
9/14②
Lower Corridor
Upper Corridor
189219
‐100
‐50
0
50
100
150
200
250
‐100 0
100
200
300
400
500
600
700
800
900
1000
Bend
ing Mom
ent (Nm)
Time (ms)
Tibia 29/13
9/14①
9/14②
Lower Corridor
Upper Corridor
139
166
‐100
‐50
0
50
100
150
200
‐100 0
100
200
300
400
500
600
700
800
900
1000
Bend
ing Mom
ent (Nm)
Time (ms)
Tibia 39/13
9/14①
9/14②
Lower Corridor
Upper Corridor
90
111
‐50
0
50
100
150
‐100 0
100
200
300
400
500
600
700
800
900
1000
Bend
ing Mom
ent (Nm)
Time (ms)
Tibia 49/13
9/14①
9/14②
Lower Corridor
Upper Corridor
20.5
24.0
‐5
0
5
10
15
20
25
30
‐100 0
100
200
300
400
500
600
700
800
900
1000
Elon
gatio
n (m
m)
Time (ms)
MCL9/13
9/14①
9/14②
Lower Corridor
Upper Corridor
8.0
10.5
‐2
0
2
4
6
8
10
12
‐100 0
100
200
300
400
500
600
700
800
900
1000
Elon
gatio
n (m
m)
Time (ms)
ACL9/13
9/14①
9/14②
Lower Corridor
Upper Corridor
② Pendulum Certification Test (Maximum Elongation)
3.5
5.0
‐3‐2‐10123456
‐100 0
100
200
300
400
500
600
700
800
900
1000
Elon
gatio
n (m
m)
Time (ms)
PCL9/13
9/14①
9/14②
Lower Corridor
Upper Corridor
All beams , assembly are passed up to final Pendulum Test