- November 11, 2015 Notes For
Meeting W/ Dr. Matt Caster Physical Therapist (Clinical Director of ACPT’s
Eastside Office) http://www.aandc.com/locations/eastside
- Main Points:
- for Parkinson Patients/other disabled patients with walking problems
- will keep foot up/help with fluid movement by putting a literal spring in their step
- 90 degree angle
- toe to top band to increase toes from not hitting the ground
- Info. From Meeting:
- Drop Foot → Brace
- Low-Resolution Model
(Completed)
- Recreating Model
- Day → Compared to week of
making device
- Improve → Toes up
- AFO → Do they work?
- Motor weakness issues -->
neuronal injury --> weakness w/ muscle
- → Doesn’t allow to lift
up toe
- Goes in shoe → swing
through → stimulate muscle → electrical → expensive!
- Built higher up →
tension farther/harder? → adjustable
- Spring incorporated, to an
extent
- AFO’s in the shoe.
- Adjustable
- Non-compliance →
no forward motion
- Doesn’t have to be 90 degrees
- Plantar Flection
- Natural movement →
free-wheel → resistance one-way/not the other
- Heel → tension release
- Sole → custom in print ?
- AFO sole → custom sole!
→ more structural support → shape of foot
- Usually clunky make
- Dorsiflex
- Motor weakness issues - price
- rehabilitation
- Tension in the brace through
band to be adjustable
- Spring or trigger incorporate
into bottom to trigger when to release tension through touch of heel on
ground.
- Run new ideas
February 10, 2016 CAOC Meeting #2 w/ Dr. Matt Caster
- Data needed by April 1st -> on reliability, durability of device.
- Durability of device/custom insole main focus.
- To place our device inside the shoe or outside? We have currently adapted the device to be placed outside the foot.
- Suggested to put the device inside the shoe.
- Plastic -> which plastic?
- We can coordinate our product w/ the other orthotics group from our class.
- Elastic function? -> how should we go about doing this?
- Through strings?
- Less/more?
- Some braces currently are articulated.
- They don’t need much movement.
- Add more components to keep foot up through elastic function.
- Angle needs to be farther out in swing phase. (most of these people can push down but not lift up)
- Brace working right now w/ current prototype.
- Inside shoe recommended.
- w/ foot sole -> hinged at an angle.
- Most current AFO’s go in shoe -> most w/ flat sole.
- Most currently don't mimic foot shape.
- Flat insole -> one size fits all -> shoe insole on top.
- We want to mimic the foot shape to provide a custom, comfortable insole.
- We can still use our current brace design but apply it into shoe -> we can use new hinges/current top part.
- But incorporate orthotic, custom, insole into it.
- Data can be collected through sensors to see if brace mimics angles and force of foot movement.
- Force -> needed force to propel foot forward and back.
- Angle -> articulation could be achieved through snowboard bindings -> flow bindings.
- Cable that pulls tensions/and releases at a certain angle to provide force.
- Articulation will be the challenge in our product.
- Keep foot up so it doesn’t catch.
- Low profile of hinges that attach at the middle of the sole
- Elastic function ->
- Flexible materials needed
- Most AFO’s promote an odd gait cycle, but we are promoting a normal gait cycle by allowing a larger angle extension
- With current AFO’s there foot would get stuck in a downward position if the brace allowed for full flexion because they don’t provide the correct force to propel the foot through the full gait cycle.
- With our AFO we will not limit gait motion
- Custom
- Printed
- Cost lowered extensively
- Will benefit consumer
- flow binding technology - snowboard vs. flexible materials (but doesn’t allow it to move as much) -> most either articulate or they don’t, if they articulate they don’t rebound, ours does both -> hinges require better mechanisms to rebound
- elasticity cable connecting from calf section to hinge (on the outside) that doesn’t have resistance when foot is forward but then snaps back when foot is back, tension will break during swing phase of the gait cycle
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