Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
Name this elbow joint
|
Outside locking hinge
|
|
Name this elbow component and its indications
|
Positive locking hinge.
Short and longer RL TH. Depending on whether you decide to put the cable inside or outside |
|
Name this component
|
AFB from OttoBock. Similar to ERGO arm
|
|
|
What's the difference between positive locking hinge and friction elbow
|
No locking/unlocking of elbow. Flex/ext controlled thru friction therefore completely passive arm. Lite duty arm
|
|
|
Describe how the ERGO arm works
|
CAM mechanism enables flex/ext
|
|
|
How many locking positons are there in the ERGO arm?
|
Infinate locking positions
|
|
|
What are the advantages of the ERGO arm?
|
"slip and stop" fxn-alternator which allows for elbow flex/ext without having to "cycle" thru locking/unlocking
Permits pathway for electronics. Unlocks under load |
|
|
Where is a base plate and retainer susposed to be located for a TH Px?
|
1" prox to cut end of the bone
|
|
|
What's the fxn of a forearm lift assist?
|
Added to elbow mechanism to act as excursion?? force benefit.
|
|
|
what are the indications for a forearm lift assist?
|
short TH, SD, or intrascapular amputee
|
|
|
How does a forearm lift assist work?
|
This needs to be added AND need to move the cable housing closer to the elbow axis since the lift assist with help with the force issue you can now put the cable in a position to maximize excursion (more proximal)
|
|
|
who is indicated for shoulder abduction joints?
|
Long SD
|
|
|
What are the 3 classifications of SD?
|
1) True shoulder
2) Humeral neck amp (considered long) 3) 4 quarter-intrascap thoracic (considered short) |
|
|
What is a benefit of the shoulder abd joints?
|
Since they are adj friction it helps with ADL's.
|
|
|
what movements do the flexion abduction joint allow?
|
flex and abd. Friction controlled
|
|
|
what movements does the universal shoulder design allow?
|
3 planes. flex/ ext, abd/add, IR/ER. These units can be used as friction wrists as well
This joint is literally 2 friction wrists that are attached with a connector |
|
|
Why is the Flexion Abd shoulder joint used more then the universal shoulder joint?
|
Not enough room for the univ. More bulky. Can use a FA with a positive locking elbow and get the IR/ER from the elbow joint.
|
|
Name this shoulder joint
What movements does it allow? |
Locking shoulder joint aka-LTI Collier joint.
Friction abd and locking/unlocking flex/ext-this allows "free swing" |
|
|
What is a sierra nudge control?
|
Elbow lock. Chin opertes
|
|
Descibe what this is.
Who is it indicated for? |
Sheave design excursion amplifier. Gives you double the amount of excursion input
Shoulder disartic. amputee |
|
what is this?
How does it work? What is the location that you should start at? |
Lift Tab assembly.
Allows you to move the cable attachment more prox/distal depeding on how much excursion you want. 25mm anterior, 30mm distal |
|
what is this?
What is it used for? |
Forearm lift assembly.
Attaches to lift tab assembly to allow for anterior/posterior movement of the cable in relation to the elbow joint |
|
|
What are the effects of moving the cable attachment on a TH socket?
|
Moving it closer to the joint= more excursion but an increase in force is needed. Moving it away from the joint = less excursion but decreases the force needed
|
|
|
What are the indications for polycentric hinges on TR?
|
Cubital bunching due to excessive soft tissue. Allows you to fudge on the elbow center a little since it's probably difficult to locate on the fleshy patient
|
|
|
What are the indications for flexible hinges on TR?
|
Allows for supination/pronation.
Necessary for bilaterals |
|
|
What are the indications for single pivot hinges?
|
Heavy duty users
Short TR residual limb Protect against torque load |
