L10 UE Prosthetics Flashcards

Question

How body powered prosthetic works

Answer 1

1. axillary loop is primary anchor, stanless steel control cable is attached at its proximal end to straps, attaches to the thumb 2. Tension is applied to movable thumb pulls away from stationary finger 3. Cable housing maintains constant length of control cable, same amount of body motion is required to operate it in elbow flexion/extension

Answer 2

ring of axillary straps is placed just below C7 and slightly toward the non-amputated side

Answer 3

1. GH jt flexion 2. biscapular abduction can be used for actions close to midline

Answer 4

used in transradial pts also socket provides suspension tail of axillary loop attaches to control cable, anchoring it

Answer 5

Biscapular abduction or flexion of humerus for opening or closing, depending on mechanism

Answer 6

prehension of volunatry opening in TD uses them one band = 2.2 lbs

Answer 7

primarily used for transhumeral pts who use hybrid prosthesis saddle provides better suspension

Answer 8

anterior support strap originates on axillary loop just post to humeral head and attaches to AM aspect of prosthesis suspends the prosthesis against loading and helps prevent socket rotation

Answer 9

occurs with shoulder depression, extension, and abduction of affected side when elbow is unlocked, GH flexion will control elbow. When its locked, GH flexion will operate the TD

Answer 10

grip force less energy expenditure correlates with neuromuscular system larger functional envelope reduced or eliminated harness hand is functional, cosmetic

Answer 11

cost weight repairs are more demanding can be damaged by environment requires battery power

Answer 12

greifer ETD hand multi-articular hand

Answer 13

individual joints and individual digits move thumb has powered rotation

Answer 14

thumb is actively positioned 14 grip patterns, 8 available at 1 time

Answer 15

iLimb BeBionic

Answer 16

powered thumb that positions in lateral pinch or opposition

Answer 17

less or no harness or cable required powered by battery, activated by electrodes contains mechanical switch has multiple different suspensions suction, anatomical, sleeve, harness

Answer 18

pt pushes in and prosthesis suspends supracondylarly

Answer 19

pt pulls in to create a vacuum

Answer 20

if amplitude is greater than a preset threshold then the device will execute an action at a constant speed/force offers ingle degree of freedom control

Answer 21

method can achieve variable speed and force based on the proportion of user input signals degree of movement can be force, speed, position, or other mechanical outputs

Answer 22

myoelectric potential amplification conversion to DC voltage electrodes

Answer 23

voluntary open, automated closing quick-slow strategy

Answer 24

Grip increases with duration of contraction dual inputs can control 4 motions

Answer 25

inputs to change between devices. Ex hand function to wrist function two actions are 1. co-contraction, 2. quick-slow scheme

Answer 26

hand is quick contraction wrist is slow contraction

Answer 27

commonly used for elbow control in transhumeral input is linear potentiometer with 1/2" to 1" of travel that is pulled by a cable

Answer 28

combines a feature of two or more prosthetic options --cosmetic, body-powered, electric

Answer 29

healing pre-prosthetic training basic prosthetic training advanced functional training community re-integration discharge planning

Answer 30

care of residual limb general physical rehab psychological support change of dominance ADL training myosite testing and training

Answer 31

wound care edema control desensitization scar management pain management

Answer 32

aquaphor zeroform/adaptic mepitel silvadene wet to dry dressings sharps debridement

Answer 33

elevation AROM compression manual edema mob ice, contrast baths

Answer 34

massage immersion textures mini-massager

Answer 35

massage silicone scar pads silicone liners kinesiotape compression

Answer 36

shoulder elbow flexion forearm

Answer 37

make it a habit keep it simple prevention awareness of tendency for forward head and forward shoulder posture

Answer 38

phantom pain, sensation, residual limb pain medical management massage compression TENS mirror therapy recognise app

Answer 39

referral to a professional peer support support organizations listen

Answer 40

enduring (quiet support) suffering (listening, empathy) reckoning (info, referrals) reconciling (validation, info) normalizing (role model) thriving (challenge, recruit for peer)

Answer 41

feeding brushing teeth personal hygiene handwriting fasteners containers

Answer 42

1. find a superficial muscle that pt can contract with enough strength and control to operate a myoelectric prosthesis 2. in-phase if possible 3. independent control between muscles 4. ability to co-contract or perform quick vs slow contraction should be as proximal within socket as possible

Answer 43

TR = wrist flexors and extensors TH = biceps and triceps SD = pectoralis and infraspinatus

Answer 44

1. explain muscle function and reasonable goals 2. practice on uninvolved side 3. clean and moisten skin 4. align electrodes with muscle fibers 5. place just distal to innervation zone 6. maintain contact 7. discuss warm-up or settling period

Answer 45

quality not quantity frequent rests use games as skill improves skill acquisition for contract/relax, contract/hold/relax, signal separation, speed, co-contraction and endurance

Answer 46

stimulate kinesthetic tactile learning focus on their learning style cultivated over time reimprint other half of brain w/mirror increased repetition innovative approaches

Answer 47

Kinesthetic, visual, auditory, reading/writing

Answer 48

flexion/extension with linear potentiometer or switch IR/ER with manual turntable Free swing

Answer 49

manual or electric lock for flex/ext friction for abd/add

Answer 50

open/close pronation/supination/rotation wrist flexion changing TD's

Answer 51

friction type manual control

Answer 52

manual lever control for wrist

Answer 53

open with humeral flexion of involved side, univolved side acts as an anchor close with rubber band tension change the TDs

Answer 54

elbow must be locked to operate TD elbow is unlocked, humeral flexion on TH side will flex elbow lock is activated by shoulder depression, humeral extension, and abduction on TH side

Answer 55

pt has long TH amputation they may retain anatomic ability to rotate if amputation is short, turntable may be added to allow for manual rotation of the humeral component

Answer 56

1. Begin with prosthesis at midline 2. Practice open, open partially, close 3. Practice changing elbow position then open/close 4. Practice change of speed and change of mode for myoelectric 5. Have them mimic motions 6. Have them stand and grasp objects 7. Have them grasp and then release on different surface 8. Incorporate all joints in activities, practice control with soft objects 9. Gross coordination (pouring, turning pages) 10. develop fine coordination (stacking blocks, placing small pegs, play cards)

Answer 57

enormous pt population many pts chose not to wear one usually fit with some form of opposition post, there is no power in the post

Answer 58

provide grasp protect residual limb

Answer 59

activated by pressure sensors freedom of wrist motion better at prepositioning

Answer 60

improve sensory feedback decrease reliance on visual feedback ossointegration patterned recognition to increase control simultaneous control, estimates hand in real time. more intuitive

Answer 61

listen support creativity energy motivation