Harnessing for Body Powered Prostheses Ryan Spill, CP Advanced Arm Dynamics September 30, 2010
Transradial Prosthesis Figure 8 Figure 9 Modified
Figure 8 harness Suspension Control Axilla loop Inverted Y suspension
Inverted “Y” Strap for Suspension
Control Strap
Figure 9 Harness Provides control of TD only Alternate suspensory technique
Self-Suspending Socket Design with Figure 9 Harness
Custom Harness Designs Patient prefers suction socket Figure 9 harness for TD control Distal attachment to frame
Modified Control Cable Patient lives substantial distance from office Heavy duty user
Alternate Control Cable
Alternate Anchor instead of Axilla Loop
Modified Triceps Cuff
Medial Cross Bar Assembly
Bilateral Figure 8
Transhumeral Prosthesis Figure 8Chest StrapModified
Figure 8 harness Efficient Suspension & Control Suspension strap Elbow Lock/Unlock Elbow/TD control
Figure 8 Harness Lock/Unlock Control
Figure 8 Harness for Triple Control Double Ring Control Cable mounted Laterally lock
Control Strap Mounted Medially
Transhumeral Chest Strap Left Transhumeral amputee secondary to trauma Contralateral hand weakness
Transhumeral Chest Strap HarnessAttachment Lock/Unlock Cable Easier for donning than Figure 8
Control Strap
Modified Chest Strap Narrow Straps Medial lock/unlock attachment allows locking by abduction
Elastic suspensory straps Control strap travels through keeper attached to elastic
Chest strap for Elbow Disarticulation
Modified Harness Left transhumeral amputee Secondary to burns Compromised hand strength
Initial Chest Strap
Elastic Chest Strap Attached to Axilla Loop Combination of Figure 8 and Chest Strap Designs
Socket Modification to Assist Harness Silicone Locking Liner Proximal and Distal Suspension Strap
Thank You!