The Universal Prosthesis -- Appendixes 2005-11-18 - A3

C Project Timeline

Design for All contest (april) and internship in SriLanka (sept-dec)

Inne+ and implementation concepts, testing designs

Pratical knowledge better intergrated

Boudewijn Wisse, Wouter van Dorsser, Farshad Soleymani

New design (dec 2002) and finishing internship (febr)

New concept and implementation plan. internship report

Analysis and forming of a design philosphy and vision

Boudewijn, Wouter

Ethics Course

Finished ethics essay (november)

Lots of thinking

Boudewijn

New concept for socket. Model proving principle

Integration of Practice and Theory.

Boudewijn Wisse and mentors

Official start Msc Project

Product for World market

2005 ?

August - Finish Msc project



From high to low cost during development

Inne ten Have

Reasonable low cost

Main inspiration for Design for All project is formed

Extreme Low Costs

Inne conceptualizes his design

Philosophy

Mass production

Inne travels through Cambodja

Design result

Locally made

Who

3th world + western version

2004

Process

Universal

2003

Result

Inidvidually made

2002

Event

3th world product

1991 1992

C

Boudewijn Wisse - The Universal Prosthesis - Appedixes

D Socket Designs Timeline

Sockets based on Inne+

Experimental designs, tests and redesigns

Start work in Srl Lanka

Conceptual Design on paper

Transfer from development of aluminium prostheses to plastic prostheses

Conceptual Design on paper

Integration of the two basic concepts. Especially in regards to the patellar-frontpiece

Boudewijn Wisse - The Universal Prosthesis - Appedixes

Sockets based on Michelle+

D

E History of Prosthetics

- 43.000

Boudewijn Wisse - The Universal Prosthesis - Appedixes

Evidence found that amputation was done with primitive tools

-370

Hippocrates used splints on the legs.

-300

A prosthesis unearthed in the ruins of Pompeii is thought to be the first prosthesis

1564

Ambroise Paré describes this artificial leg in Dix Livres de la Chirugie

1690

Verduin constructed a transtibial prosthesis with copper socket, tleather thigh corset and a wooden foot

1865

JE Hangar, sustans an amputation whnd places rubber bimpers in solid feet, producing the first articualted prosthetic foot.

1945

The US Vetrerans Administration supports the development of the pattellar tendon bearing and the quadrilateral sockets

Dr. P.K. Sethi invents the Jaipur prosthesis 1970

The US Veterans Administration develops the endoskeletal prosthesis

2000

Microprocessor techniques are being inplemented in artificial joints. Sockets by CAD/CAM.

E

K Available Feet

Boudewijn Wisse - The Universal Prosthesis - Appedixes

K

L Connective Components & Pylons

Boudewijn Wisse - The Universal Prosthesis - Appedixes

socket attachment adapter

coupling adapter

pyramid-type alignment core

adjusting screw connection pylon

rotating coupling adapter

offset pylon adapter

ankle adapter with alignment core

L

T Total Concept Presentation Posterior

Proximal

Medial

Lateral

Distal

Anterior

Boudewijn Wisse - The Universal Prosthesis - Appedixes

FITTING LINER Coated PU

roll-on liner for fitting procedure

DISTAL END PAD

protects against high pressures and oedema

T

Silicone SUSPENSION BRIMS

brims that press above the condyles

POSTERIOR INTERFACE FRAME

contact frame with the residual limb - backside

ABS-plastic ANTERIOR INTERFACE FRAME

contact frame with the residual limb - front

ABS-plastic PATELLAR TENDON BAR

piece of the interface frame that loads the PT

UNLOADED AREAS

no interface, so lower pressures

SMALL STRIPS

bend to enhance short residual.limb bearing

LONG STRIPS

protect and are attached to weight-bearing frame

ANTERIOR-POSTERIOR STRAP

part of the anterior weight.b.f. that connects to the posterior frame

POSTERIOR-ANTERIOR STRAP

part of the posterior weight b.f. that connects to the anterior frame

ANTERIOR WEIGHT-BEARING FRAME

transfers the loads to the connector

Hylite POSTERIOR WEIGHT-BEARING FRAME

transfers the loads to the connector

Hylite STRAW

helps foam to reach higher places

ADJUSTMENT HOLES

makes the connector height adjustable

INNER SEAL

makes the prosthesis air-tight

Compressible rubber STRAW CONNECTION & VALVE

provides access to fill the inside with foam

CONNECTOR

transfers loads to the foot and connects the frame

Aluminium PYRAMID CONNECTION CORE

standardized foot connection core

OUTER SEAL

makes the prosthesis air-tight

Compressible rubber Prosthesis for the right leg

Y Comparison Table

Y

Boudewijn Wisse - The Universal Prosthesis - Appedixes

Comparison between 7 fabrication methods and sockets. Properties of the system. UniPros

PTB-resin

PTB-ICRC

ICEX-resin

ICEX-IDC

PTB-Jaipur

Hydro/sand

weight-bearing principle

PTB/TCB

PTB

PTB

TCB

TCB

PTB

TCB

skeletal design type

exo

endo

endo

endo

endo

exo

endo

materials

PU/Alu/PP

glass-fbre reinforced resin

PP

glass-fibre reinforced resin

carbon-fibre reinforced resin

aluminium. Wood , leather

glass-fibre reinforced resins or PP

standard suspension

brims

-

knee-cuff

-

-

knee-cuff

-

possible suspension

all

all

brims

all

all

-

all

services

UP-specific

-

ICRC

Össur

Össur

-

?

tools needed (except hardwarestore tools)

aerosol spray

thermoformer (vacuum)

thermoformer (vacuum)

vacuumformer and icex-cast compact

icex-cast compact

envil

thermoformer and compressor

% of all TTAS possible to fit

75-85%

90%

90%

95%

95%

70-80%

90%

% of fitted experienced as comfortable

75-80%

80%

80%

85%

85%

65%

80%

components price (USD)

700-100

300

100

700

1100

100

100

time to fit (hours)

1

7

6

5,5

2,5

8

5,5

PTB-resin

PTB-ICRC

ICEX-resin

ICEX-IDC

PTB-Jaipur

Hydro/sand

Criteria

Higher percentage is always better, PTB-resin taken as 100 UniPros 1

Universal

89%

100%

100%

106%

106%

83%

100%

2

A

Socket fit

97%

100%

100%

106%

106%

81%

100%

2

B

Weight

88%

100%

100%

100%

100%

75%

100%

2

C

Material used

95%

100%

100%

100%

100%

95%

100%

3

A

Steps needed

200%

100%

100%

114%

133%

80%

114%

3

B

Knowledge needed

180%

100%

100%

120%

140%

100%

120%

Control

90%

100%

90%

100%

105%

105%

100%

4 5

A

Don/dof

100%

100%

80%

100%

100%

80%

-

5

B

Cleaning

90%

100%

100%

100%

100%

80%

100%

6

A

Design toughness

105%

100%

95%

100%

100%

105%

100%

6

B

Toxicity / inpact on environment

90%

100%

110%

100%

110%

120%

100%

7

A

Component price

42%

100%

300%

42%

27%

300%

300%

7

B

Service price

160%

100%

120%

140%

160%

80%

140%

8

Cosmetic

90%

100%

90%

100%

110%

70%

100%

9

Quick fit

700%

100%

117%

127%

280%

88%

127%

Distribute

180%

100%

100%

100%

160%

120%

120%

10