Prototype 43

Prototype 43:

Like in the video of prototype 42 is quoted , its hard to walk on one. So we took her second favourite envelope prototype 29 and combined it with the other filling from prototype 35. Here we didn't use extra filling on top of that.

Elements of experience:

Positive expected: its better with less filling on top

Positive unexpected: 

Negative expected:  a little bit off filling is needed

Negative unexpected: 

#	Time	#parts	#materials	# tools
43		3	foam fabric velcro

Results from testing on 21/03

For the bandage locking the order from bad to good is:

• basic velcro stips 
• velcro strips where one end in bigger that the other 
• velcro strips sewed together and pult though a hole
• bra closing

The next steps on the envelop are going to be on the fabric that touches the ground and the skin. These prototypes will be made in pairs, one with the velcro strips sewed together and one with the bra closing.

For the filling the order from bad to good is:

• PU with fabric, with the fabric on top (prototype 41)
• rubber band with filling( prototype 39)
• foam with sizes from feline with hole (prototype 36)
• foam with size from Timothy with hole and filled whole( prototype 37 & 38)
• PU with fabric, with the fabric on the ground (prototype 40)
• foam without the whole in it (prototype 35)
 

 

Prototype 28:

de banden worden bevestigd met bh haakjes (bovenste band)

Elements of experience:

Positive expected:minder voelbaar

Positive unexpected: goeie locatie aan de zijkant, makkelijk te bereiken

Negative expected:

Negative unexpected: 
door verslechterende motoriek kan dit wel moeilijker worden in latere stadia van MS

#	Time	#parts	#materials	# tools
28	5min	1	bh hooks	sewing machine

Prototype 17

Prototype 17:

While searching on the internet we noticed that knee braces are shaped like a donut around the knee. So when we saw these donuts normally used for hairdots, we got the idea to use these.

Elements of experience:

Positive expected: force is distributed around the knee

Positive unexpected: 

Negative expected: a hard material if squeezed together

Negative unexpected: weird feeling from the materials , knee touches ground in the middle

#	Time	#parts	#materials	# tools
17	0	2	hairdonut

Prototype 15

Prototype 15:

This one is a filling made by sponges. It has three parts so that its a bit more flexible, because it's rather hard and would be difficult to use if the parts where pasted together.

Elements of experience:

Positive expected: 

Positive unexpected: 

Negative expected: 

Negative unexpected:

#	Time	#parts	#materials	# tools
15	7min	3	sponge	scissors

Prototype 14

Prototype 14:

This one is the combination of prototypes 12 and 13, so it has it soft qualities for more comfort and a harder shell so that hard objects are difficult to feel through it.

Elements of experience:

Positive expected: 

Positive unexpected: 

Negative expected: 

Negative unexpected: a bit to hard

#	Time	#parts	#materials	# tools
14	30s	2	fabric plastic

Prototype 13

Prototype 13:

This is a collection of 7 layers of plastic with ribs which are oriented in different directions.

Elements of experience:

Positive expected: 

Positive unexpected: with the different directions of ribs it becomes a stronger whole

Negative expected: 

Negative unexpected: 

#	Time	#parts	#materials	# tools
13	5min	7	plastic with ribs	scissors

prototype 12

prototype 12:

The next number of prototypes are the ones that concern the filling of the previous prototypes 9,10 and 11.

This filling is made from layering fabric ant stitching it down in a square pattern.

Elements of experience:

Positive expected: the stitching make it less thick 

Positive unexpected: 

Negative expected: you can still feel hard object through it 

Negative unexpected: 

#	Time	#parts	#materials	# tools
11	10	1	fabric	sewing machine, scissors, needle

prototype 11

prototype 11:

In this prototype, the compression stockings were used in a different way. Here you need to put the envelop on just like you would do with a sock.
There is a whole made so that there is no irritation in the popliteal. This is stitched around so that there is no fluff coming loose from the sock.

Elements of experience:

Positive expected: the hole leaves enough place for the knee 

Positive unexpected: 

Negative expected: 

Negative unexpected: by stitching the border of the hole it becomes less flexible and less stretchable

#	Time	#parts	#materials	# tools
11	25min	2	fabric compression socks	sewing machine, scissors, needle

prototype 10

prototype 10:

This prototype is based on 9 with the difference that the elastic straps are replaced by compression socks.

Elements of experience:

Positive expected: these are also easy to tighten

Positive unexpected: 

Negative expected: the socks fluff off

Negative unexpected: difficult to estimate the length of the socks

#	Time	#parts	#materials	# tools
10	20min	3	fabric velcro compression socks	sewing machine, scissors, needle

prototype 9

prototype 9:

Different envelops were made, each one has different straps, so that the straps can be tested with different fillings. Each envelop is made by stitching two patches of fabric and a velcro closure.

This one is made with elastics with two different widths: 20mm and 30mm

Elements of experience:

Positive expected: stays on the leg

Positive unexpected: 

Negative expected: too wide

Negative unexpected: the top elastic keeps going into the popliteal

#	Time	#parts	#materials	# tools
9	20min	1	fabric velcro elastic	1 sewing machine

prototype 7

 prototype 7:

because the shell was harder then expected, we added a second layer of the fabric to act as padding.

Elements of experience:

Positive expected: softer

Positive unexpected: 

Negative expected:

Negative unexpected:

#	Time	#parts	#materials	# tools
7	30s	2	fabric, polyester	scissors

prototype 6

 prototype 6:

We made a hard shell from the inside of prototype 1, we did this by impregnating fabric with polyester. by using a thicker fabric , we hope to achieve a softer backside.

Elements of experience:

Positive expected:hard outside shell

Positive unexpected: 

Negative expected: fabric inside is harder then expected

Negative unexpected:when the leg isn't bend, the shell is pushing against the leg.

#	Time	#parts	#materials	# tools
6	10 min	1	fabric, polyester	scissors, polyester

prototype 5

 prototype 5:

we are testing how a thin silicone patch feels .

the silicone makes the surface softer, but also more slippery. The silicone also adds a lot of friction, making it impossible to slide around.

Elements of experience:

Positive expected:softer surface

Positive unexpected: stretchable

Negative expected: strange feeling (gel feeling)

Negative unexpected:adds a lot of friction

#	Time	#parts	#materials	# tools
5	10 min	1	silicone	casting silicone

prototype 4

 prototype 4:

by combining prototype 2 and 3 we get prototype , a flexible but harder front and a soft foam as backing. the harder material distributes the forces more across the foam, while the foam adjusts to the shape of the knee.

Elements of experience:

Positive expected: forces are distributed more

Positive unexpected: 

Negative expected:thick

Negative unexpected:debris is still noticeable

#	Time	#parts	#materials	# tools
4	30s	2	foam , carpet	scissors

prototype 3

 prototype 3:

A piece of carpet has a harder side and a softer side, we cut a piece of it and test it

Elements of experience:

Positive expected:

Positive unexpected: 

Negative expected: you can still feel rocks, and debris

Negative unexpected:

#	Time	#parts	#materials	# tools
3	30s	1	carpet	scissors

prototype 2

 prototype 2:

We are testing the effectiveness of simple soft foam, the prototype only tests material and not the shape or size

Elements of experience:

Positive expected:

Positive unexpected: 

Negative expected: you can still feel rocks, and debris

Negative unexpected:

#	Time	#parts	#materials	# tools
2	30s	1	foam	scissors