TH harnessing, componentry, & control pt. 2

long TH or ED

indications for external hinges

1.5-2”

how much room is needed for in-line elbow to match anatomical elbow center?

medially

is elbow lock usually placed medially or laterally?

lightweight

benefits of friction elbow joint

pediatric

primary patient base for friction elbow joint

passively

how is friction elbow joint positioned?

set screw

how to change flexion/extension friction on a friction elbow joint?

flex/ext, int/ext rotation

movements allows by friction elbow joint

8, 11

the hosmer E-series inside locking elbow has ___ locking positions if heavy duty and ___ locking positions if not

multiple locking flexion positions, turntable, can attach lift assist medially or laterally, can be used with prefab forearm shells

features of inside locking elbow

automatic forearm balance

what does AFB stand for?

1) passive and mechanical BP elbow
2) mechanical elbow with cable pass-through for electric TDs
3) electronic elbow lock with pass-through for electric TDs

3 options for OB Ergo Arm Series

AFB, infinite elbow positions, slip stop

features of OB Ergo Arm Series

1) mechanical elbow joint
2) forearm counterbalance
3) manual lock
4) electrically powered elbow with live lift and electronic lock

4 options for Steeper- Espire Arm Series

live lift

these are all examples of what kind of elbow: Fillauer Utah arm, Ottobock DynamicArm, Steeper Espire Pro

live lift elbow

powered elbow joints that actively flex, extend, and hold position

heavier and bulkier, requires charging, high maintenance, weight and environmental limits, needs clinician to do certification course

downsides of using live lift elbows

nudge control

used to operate elbow lock when limited shoulder excursion is available

chin bump, phocomelia digits

ways to activate nudge control for elbow lock

endoskeletal

elbows with lockable positioning and free swing