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 0, 30, 54, 180 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 (2- 6 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 0, 35, or 50 Positions 1 7/16" Long Need Base Wrist Recommended for bilaterals Push Button APRL Child Flexion Unit 0 & 36 Positions Manual Positions 1 1/16" Long Children Flexion-Friction Wrist 0, 30, 50 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 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