Recent increase in deployment of trans-catheter devices such as septal or ductal occluding coils and has been a possible risk factor for infective endocarditis, predominantly the initial post period before endothelialization ensued. Though long-term study Atrial Septal Defect (ASD) closure revealed no cases Infective Endocarditis, some case reports endocarditis device ASD, VSD Patent ductus art...

Variable stiffness structures that enable a wide range of efficient load-bearing and dexterous activity are ubiquitous in mammalian musculoskeletal systems but are rare in engineered systems because of their complexity, power, and cost. We present a new negative stiffness-based load-bearing structure with dynamically tunable stiffness. Negative stiffness, traditionally used to achieve novel res...

Acute myocardial infarction (AMI), despite advances in health care delivery systems, educa‐ tion, and primary prevention still remains a significant problem. Fortunately, with these ad‐ vances and early interventions, there has been a decline in the incidence of mechanical complications. Unfortunately, while becoming less common, when mechanical complica‐ tions occur and despite advances and ev...

Varstiff is a technology that allows a sheet material to switch from flexible to rigid state and vice versa by adjusting vacuum level through a pump. We used this Varstiff as base technology to design a Wheelchair Positioning Device. Main function of this device is to correctly position a stroke patient when seated in a wheelchair during hospital stay. Correct sitting posture supports motor reh...

The focus of this work is to design a control strategy with the dynamic characteristics spring damping realize virtual flexibility and softness rigid-joint exoskeleton without installing real, physical elastic devices. basic idea “virtual softening strategy” for single rigid joint that damper (VSD) installed between motor output shaft. By designing signal motor, torque actuator softened so has ...