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Sajjad Hussain

4 accepted papers

2025

Model Predictive Control for 3D Steerable Needles: A Hierarchical Approach to Reduce Tissue Trauma

IROS 2025

This paper presents a three-dimensional (3D) control framework for bevel-tip steerable needles that combines model predictive control (MPC) with hierarchical supervisory logic. The MPC layer uses a reduced-order two-mode switching model to generate the desired control actions, while the supervisory

Cited by 1Source ↗Scholar ↗
2024

Novel Multiport Output Twisted String Actuator with Self-differential Mechanism: Hand Glove Application

IROS 2024poster

The differential mechanism can reduce the number of actuators and efficiently distribute force or power. We proposed a novel multiport output twisted string actuator (MO-TSA) with self-differential mechanism that employs a single actuator to achieve multiport outputs. The differential MO-TSA is adap…

Cited by 0Source ↗Scholar ↗
2022

Design of a Wearable Mechanism With Shape Memory Alloy (SMA)-Based Artificial Muscle for Assisting With Shoulder Abduction

RA-L 2022

This letter proposes a new mechanism, a four-bar linkage-based support hinge mechanism, for assisting with shoulder abduction with artificial muscle based on a shape memory alloy (SMA). An artificial muscle using the SMA coils is designed to lighten the entire system and support the wearer's movemen

Cited by 12Source ↗Scholar ↗
2022

Soft Wearable Robot With Shape Memory Alloy (SMA)-Based Artificial Muscle for Assisting With Elbow Flexion and Forearm Supination/Pronation

RA-L 2022

This letter proposes a soft wearable robot with shape memory alloy (SMA)-based artificial muscle to assist with upper limb motion. The SMA-based artificial muscle was designed by embedding a bundle of SMA coil springs into a stretchable coolant vessel, which allows active cooling of the SMA bundles

Cited by 26Source ↗Scholar ↗