Transcript Upper Extremity Prosthetic Componentry

Hooks, Hands, & Wrists
Matthew J. Mikosz, CP,LP
Hanger National Upper Extremity Prosthetics
Program
VO or VC
● VO
● Lower max grip
● Relaxed full grip
● Grip force determined
by # of rubber bands
● VC
● High max grip
● Sustained tension for
grip
● Graded prehension
with excellent “feel”
Terminal Devices
● Hooks
● Functional
● Ease of Use
● Fine grasp
● Hands
● More Cosmetic
● Difficult to Open
#5 Adult Hook
● Stainless Steel
● Serrated Surface
● Canted Fingers
● 4 7/8" Long
● 8 oz.
#5X Adult Hook
● Stainless Steel
● Neoprene Lined
● Canted Fingers
● 4 7/8" Long
● 7.5 oz.
#5XA Adult Hook
● Aluminum Alloy
● Neoprene Lined
● Canted Fingers
● 4 7/8" Long
● 4 oz.
#555 Adult Hook
● Aluminum Alloy
● Neoprene Lined
● Lyre Shaped Fingers
● 5" Long
● 4.5 oz.
#555-SS Adult Hook
● Stainless Steel
● Neoprene Lined
● Lyre Shaped Fingers
● 5" Long
● 8.5 oz.
#7 Work Hook
● Stainless Steel
● Serrated Surface
● Pail Hook
● Nail & Chisel Holder
● 4 7/8" Long
● 10.5 oz.
#7LO Work Hook
● Large Finger Opening
● #7 Features
● Stainless Steel
● Serrated Surface
#6 Work Hook
● Backlock Feature
● #7 features
● Stainless Steel
● Serrated Surface
● 5 1/2" Long
● 14 oz.
#3 Work Hook
● Shorter #7
● No Chisel Holder
● Stainless Steel
● 4 5/8" Long
● 10 oz.
APRL Voluntary Closing Hook
● Replaceable Lyre Fingers
● Neoprene Lined
● "Thumb" Posterior
● 6 3/8" Long
● 8.6 oz.
Sierra 2 Load Hook
● 2 Pinch Loads
● 3.5 lbs or 7lbs
● Replaceable Lyre
Fingers
● Neoprene Lined
● 5" Long
● 12.5 oz.
#8 Medium Adult Hook
● Smaller 5
● Stainless Steel
● Serrated Surface
● 4 5/8" Long
● 8 oz.
#8X Medium Adult Hook
● Smaller 5X
● Stainless Steel
● Neoprene Lined
● 4 5/8" Long
● 7.5 oz.
#88X Medium Adult Hook
● Lighter 8X
● Aluminum Alloy
● Neoprene Lined
● 4 5/8" Long
● 7.5 oz.
#99X Small Adult Hook
● Adolescents
● Aluminum Alloy
● Neoprene Lined
● 3 7/8" Long
● 3 oz.
#99P Small child Hook
● Adolescents
● Plastisol Coating
● Aluminum Alloy
● 3 7/8" Long
● 3.5 oz.
#10X Child Hook
● Children
● Aluminum Alloy
● Neoprene Lined
● 3 3/8" Long
● 3 oz.
#10P Child Hook
● Plastisol Coating
● Aluminum Alloy
● 3 1/4" Long
● 3.5 oz.
#12P Infant Hook
● Plastisol Coating
● Stainless Steel
● Neoprene Lined
● 2 3/4" Long
● 3 oz.
C.A.P.P. Terminal Device
● Left & Right
● Spring Loaded VO
● 3 spring tensions
● Replaceable thumb
● No need for glove
C.A.P.P. Multi-Position Post
● Partial Hands
● Upper Extremity Aid
● 0º, 30º, 54º, 180º
Baseball Glove Attachment
● Thumb & Forefinger
● Custom TD
● First Baseman Mitt Only
● Hockey Mitt
● 9.5" Long
● 10.5 oz.
Driving Ring
● Steering Wheel
● Boat Tillers
● Aircraft Controls
● Ring Pivots
Mechanical Hands
● Cosmetic
● Less Functional
● Impedes Visual Feedback
● More Maintenance
● Perform Differently
Dorrance Hand
● Small, Medium, Large
● Voluntary Opening
● Thumb & Fingers Move
● Breakaway Release
Mechanical Child Hand
● 2 to 6 year old
● Lightweight
● Adjustable Pinch Force
● Cosmetic Glove
APRL VC Hand
● Voluntary Closing
● 2 Thumb Settings
● Backlock Feature
● Durable
Sierra VO Hand
● Voluntary Opening
● Backlock Feature
● 2 Thumb Settings
● Similar to APRL Hand
Becker Imperial Hand
● Round Wire Fingers
● Adaptive Grasp
● Irregular Objects
● All Fingers Move
● Grip adjustable with
screwdriver
Becker Plylite Hand
● Laminated Wood
● Moveable Thumb only
● Lightweight
Hosmer Soft Voluntary Opening
Hand
● Adjustable Prehension (26 lbs.)
● Fits all Cosmetic Gloves
● Pliable Finger Tips
● Low Cost Alternative
● Lightweight
Passive Hand
● Soft Foam
● Cosmetic Gloves
● Position Fingers
● 9 colors
Wrists
● Flexion
● Disconnect
● Constant Friction
● Combination
● Laminating Ring
Quick Change Wrist
● Push Button Release
● Position TD
● TD Release
● Inserts on TD's
WD Quick Change Wrist
● Rotating Release
● One Way-Release
● Other Way-Position
● Not for Bilaterals
Constant Friction Wrist
● Friction thru Range
● Adjustable Friction
● Nylon Insert
● Insert Replaceable
● Adult, Medium, Infant
Oval Constant Friction Wrist
● Not for Hands
● Longer Amputations
● Adult & Medium Small
Size
● Adjustable friction
CAPP Delrin Wrist
● Friction Collar
● 3 Sizes
● Lightweight
● High Level Prostheses
Endoskeletal Wrists
● Lightweight
● Passive & Adjustable
● Fits Standard TD's
● Cosmetic
Friction Disconnect Wrist
● Const. Friction
● Disconnect
● Friction Positioning
● Ratchet Positioning
● Great Combination
Economy Wrist
● Al, SS, or Ti
● Heavy Duty
● Washer Provides
Friction
Economy Wrist w/ Straps
● Rubber washer type
friction
● Steel or Titanium
● Heavier
● Tie into Lamination
Sierra Wrist Flexion Unit
● 0º, 35º, or 50º Positions
● 1 7/16" Long
● Need Base Wrist
● Recommended for
bilaterals
● Push Button
APRL Child Flexion Unit
● 0º & 36º Positions
● Manual Positions
● 1 1/16" Long
● Children
Flexion-Friction Wrist
● 0º, 30º, 50º Positions
● Push Lever
● Only 1 Plane
● Adjustable Friction
● Automatic Locking
Swaging tool
● Used to crimp steel
connectors to steel
cable
Triple swivel
● Connects cable to
hook
● 1/16”
● 3/32”
● 3/64”
Ball terminals and receivers
● Hook to hand
adapter
● 1/16”
● 3/32”
● 3/64”
Base plate
● Used in conjunction
with retainer to
secure cable
housing
Retainers
● Inserts into base
plate to hold cable
housing
Ferrules
● Connect to ends of
cable housing to cap
housing
Hangers
● Connects proximal
cable to control
strap
Cross bar assembly
● Connects proximal
housing to triceps
pad
Forearm lift assembly
4 bar buckles
● Allows adjustability
to harness
● ½”
● ¾”
● 1”
Northwestern rings
● Small, medium, and
large
Axilla loop pads
● Made of flexible
plastic
● Become brittle over
time
Standard Prosthetic Hinges
● Single Axis
● Flexible
● Dacron
● Metal
● Outside Locking
Special Prosthetic Hinges
● Polycentric
● Stump Activated
● Step-Up
● Sliding
● Geared
● Flail Arm
Single Axis
● Small, Regular, Large
● Heavy Duty Use
● Eliminates Pro & Sup
Flexible Hinges
● Metal or Dacron
● Metal for Heavy Duty
● Allows Pro-Sup
Outside Locking Hinges
● Elbow Disartic.
● 7 Positions; 5 Heavy Duty
● Small, Medium, Large
Polycentric Hinges
● Gearing Mechanism
● Reduce cubital
Bunching
● Small, Medium, Adult
Stump Activated Hinges
● Very Short B/E
● Limb Locks Elbow
(extension)
● Split Housing Cable
● Split Socket
● 5 Positions
Step-Up Hinges
● Geared, Sliding
● Bilaterals, Short B/E's
● Split Socket
● Increase Range of
motion
● Increases Force
requirements
Flail Arm Hinge
● Locking & Spring
Loaded
● Locking Medial Side
● Spring Lateral Side
● Brachial Plexus Injury