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Upper Extremity Prosthetics > Week 2 > Flashcards

Week 2 Flashcards

1
Q

What does TD stand for?

A

Terminal Device

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2
Q

What is the primary function of TDs?

A

For prehension

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3
Q

What is the type of TD based on?

A

Patient’s ADLs and vocational aspects

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4
Q

What are VO terminal devices?

A

Voluntary opening-open when the cable is pulled

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5
Q

What are VC terminal devices?

A

Voluntary closing-close when the cable is pulled

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6
Q

Which TD is the most common?

A

voluntary opening

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7
Q

What is used in VO TD to grip the object?

A

Spring Tension-tension is applied by the rubber band on the TD

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8
Q

What is an advantage of VC TD?

A

It allows for a graduated grip force that is applied by the individual

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9
Q

What is a disadvantage of VC TD?

A

Individual must lock the TD to continue grasping object.

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10
Q

What is a canted terminal device?

A

Offset hook or hand.

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11
Q

What is the advantage of canted TD?

A

allows better line of sight to object or working space

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12
Q

What are disadvantages of the canted TD?

A

object is rolled into grasp

cannot pick up pins well

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13
Q

What is the Lyre terminal device?

A

straight approach- object is pinched

allows user to pick up pins

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14
Q

What is considered infant size on the Hosmer TD

A

12

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15
Q

What is considered small adult/child on the Hosmer TD

A

10

99

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16
Q

What is considered medium adult on the Hosmer TD?

A

8

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17
Q

What is considered adult on the Hosmer TD?

A

5

555 (lyre shaped)

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18
Q

What is considered work TDs on the Hosmer TD?

A

3
6
7
7LO

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19
Q

What does “A” stand for?

A

Aluminum

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20
Q

What are the advantages of aluminum?

A

lightweight
best for high level UE patients
use for light to moderate prosthetic use

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21
Q

What does SS stand for?

A

Stainless steel

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22
Q

What is the disadvantage of Stainless steel?

A

It is 2x the weight of aluminum TDs

23
Q

When is stainless steel best used for?

A

longer trans-radial prosthetic use
work hooks
best for moderate to heavy prosthetic use

24
Q

What does Ti stand for?

25
Where does the weight of Titanium fall?
heavier than aluminum and lighter than stainless steel
26
When is titanium used
for moderate work
27
What does "X" stand for?
Nitrile/Neoprene rubber
28
When is nitrile used?
on the gripping surfaces for grasping irregular shapes.
29
What is plastisol?
Caucasian rubber material used to coat the fingers of the hook.
30
When is plastisol most commonly used?
For children
31
What is the advantage of plastisol?
increases coefficient of friction
32
What is the disadvantage of plastisol?
not heat-resistant
33
What is TRS VC grip Prehensors TD?
High strength stainless steel construction High efficiency body powered prehension Voluntary closing
34
What can the TRS VC grip Prehensors TD do?
can produce up to 100 pounds of pinch force | capable of a wide range of prehension including delicate manipulation to maximum gripping power
35
What is Sure-Lok cable lock control system?
Lock system to lock the TD in any position desired Allows VC TDs to be locked in the closed postion for holding objects without having to hold the same position on the device.
36
What causes the Sure-Lok cable to un-lock?
pull of the actuator cable
37
What does APRL stand for?
Army Prosthetic Research Laboratory
38
What does CAPP stand for?
Child Amputee Prosthetic Program
39
What is the description of a APRL Voluntary Closing Hand?
voluntary closing rubber cosmetic glove adult male size only two grip openings
40
What is the description of the SVO hand?
Soft Voluntary Opening Hand Lightweight Low cost alternative Dorsal or palmer cable exit
41
What is the description of the Becker Lock Grip Hand?
Voluntary Opening Control Cable will cause all Five fingers to open Hand has the ability to be locked in the closed position Prehension is spherical and cylindrical
42
What is the description of the Sierra VO hand?
Has a two position stationary thumb | back lock feature allows hand to engage all five fingers
43
What is the description of the Dorrance Mechanical Hands?
Serveral Types available Male Dorrance 400 Female Dorrance 300 Child Dorrance 200
44
What is the description of the CAPP VO hand?
``` Soft, Durable Urethane cosmesis with a life-like appearance More functional than most hands Adjustable spring tension Improved parent acceptance of cosmesis Does not require cosmetic glove Smooth, VO performance ```
45
What is the description of a TRS Adept VC hand?
``` Used for children Same body as the CAPP hand made of polyurethane configuration that resembles hand More cosmetic appearance More acceptable by parents ```
46
What is the description of the Baby Mit?
Passive Mit for development Child achieves body Symmetry helps to protect child during fall aids in standing or sitting balance incorporation of the prosthesis in the body image two sizes and colors for infants and toddlers
47
What is the description of the infant child cosmetic glove/hand?
``` More often used to replace the Mit Used for development body symmetry protects child from fall aids in standing and sitting balance used for gross bi-manual grasp used as early as 3 months Weight can be added ```
48
What is the description of cosmetic gloves?
``` rubberized covering that protects the hand from contaminations three levels stock production glove (least expensive) custom production glove custom-sculpted glove ```
49
What is considered a very short residual limb?
less than 35%
50
What is considered a short residual limb?
35-55%
51
What is considered a long residual limb?
55-90%
52
How many degrees of sup/pronation does a long TR amputee retain?
60-120 degrees
53
How many degrees of sup/pronation does a short TR amputee retain?
less than 60 degrees
54
What are the different casting techniques?
``` Muenster UCLA muenster casting TRAC-transradial anatomically contoured Hinge casting Upper extremity Negative pressure socket suspension ```

Upper Extremity Prosthetics (14 decks)

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