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Transverse-Plane Ankle Rotation for Lower-Limb Amputees Using Two Novel Prostheses
Lower-limb amputees often suffer from pain and discomfort caused by prosthesis use. Problems include musculoskeletal issues caused by compensatory gait patterns and skin injuries caused by shear stress at the interface between the residual limb and the socket. Torsion adapters have been shown to relieve these skin problems, ...
Computation and Measurement of Force and Tissue Damage for the Grasper-tissue Interface in Robot-assisted Minimal Invasive Surgery
Robot-assisted minimally invasive surgery (RMIS) has many benefits for patients. However, loss of haptic feedback in the technique is a major limitation to surgeons since extensive applied force due to the lack of haptic feedback may cause unrecognized tissue damage. Also a surgical simulator without touch sensation is less ...
A Coronally-Clutching Ankle to Improve Amputee Balance on Coronally-Uneven and Unpredictable Terrain
To improve amputee balance on coronally-uneven and unpredictable terrain, a coronally-clutching ankle (CCA) prosthesis was developed and tested using amputee participants. In its adapting mode, the CCA device enabled free coronal rotation of the prosthetic foot of up to ±15° from horizontal, and approximately 100 ms after ...
Flow Mechanotransduction Response in Endothelial Cell Monolayers and Platelets
(2013-07-25)
Blood flow through the cardiovascular system forms many spatiotemporally dynamic flow fields. This is due to the naturally pulsatile motion of the cardiac cycle, the inherent elastic behavior of arteries and the collapsibility of veins, and changes in activity levels throughout the day leading to changes in flow rate. Shear ...
Force Generation and Cytoskeletal Structure of Single Platelets
Cardiovascular disease is the most common cause of death worldwide, and one in four deaths is related to dysfunctional blood clotting. Platelet forces are an emerging metric for the balance of clotting and bleeding due to recent demonstrations of their powerful abilities to predict bleeding risk in trauma patients and detect ...