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Helge A. Wurdemann

18 accepted papers

2025

Growing manipulators through feeding material outside-in: Inversion robots

IROS 2025

Soft eversion robots have demonstrated significant advantages in navigating within confined spaces with minimal friction, making them promising candidates for various intraluminal applications in medical, industrial, and exploratory domains. While these type of growing robots enable frictionless mov

Cited by 0SourceScholar
2025

PNEUmorph: a shape-morphing interface comprising a pneumatic membrane constrained by variable-length tendons

IROS 2025

Soft shape-morphing technologies are explored in fields such as soft robotics, metamaterials and design, enabling systems to adapt dynamically through elastic deformations. Applied in mobile devices, actuators, interactive objects and environments, these systems can respond to functional needs and e

Cited by 0SourceScholar
2025

Synchronous Inflation of a Valvuloplasty Balloon Catheter With Heart Rate: In-Vitro Evaluation in Terms of Dilatation Performance

RA-L 2025

Balloon aortic valvuloplasty (BAV), a minimally invasive procedure to alleviate aortic valve stenosis, commonly employs rapid ventricular pacing (RVP) for balloon stabilization. However, the repeated and extended operation time associated with this technique poses potential complications. This lette

Cited by 0SourceScholar
2025

Tendon Locking for Antagonistic Configuration- and Stiffness-Control in Soft Robots

ICRA 2025

Some applications, such as surgical interventions, require that potential soft robots have the capability to alter their shape and enhance their force output on demand. This paper presents an antagonistic stiffening mechanism combining pneumatic actuation with tendon locking to achieve configuration

Cited by 0SourceScholar
2024

Evaluating a Movable Palm in Caging Inspired Grasping using a Reinforcement Learning-based Approach

IROS 2024

In this paper, we study the effectiveness of using a rigid movable palm for grasping varied objects, on a caging inspired gripper with three flexible fingers. This rigid palm extends to actively exert downwards force on objects, in contrast with existing methods, which combine movable palms with neg

Cited by 1SourceScholar
2021

Dynamic modelling and visco-elastic parameter identification of a fibre-reinforced soft fluidic elastomer manipulator

IROS 2021poster

A dynamic model of a soft fibre-reinforced fluidic elastomer is presented and experimentally verified, which can be used for model-based controller design. Due to the inherent visco-(hyper)elastic characteristics and nonlinear time-dependent behaviour of soft fluidic elastomer robots, analytic dynam…

Cited by 13SourceScholar
2021

Screw theory-based stiffness analysis for a fluidic-driven soft robotic manipulator

ICRA 2021poster

Soft robotic manipulators have been created and investigated for a number of applications due to their advantages over rigid robots. In minimally invasive surgery, for instance, soft robots have successfully demonstrated a number of benefits due to the compliant and flexible nature of the material t…

Cited by 13SourceScholar
2020

Hybrid fluidic actuation for a foam-based soft actuator

IROS 2020poster

Actuation means for soft robotic structures are manifold: despite actuation mechanisms such as tendon-driven manipulators or shape memory alloys, the majority of soft robotic actuators are fluidically actuated - either purely by positive or negative air pressure or by hydraulic actuation only. This…

Cited by 18SourceScholar
2020

Open-Loop Position Control in Collaborative, Modular Variable-Stiffness-Link (VSL) Robots

RA-L 2020

Collaborative robots open up new avenues in the field of industrial robotics and physical Human-Robot Interaction (pHRI) as they are suitable to work in close approximation with humans. The integration and control of variable stiffness elements allow inherently safe interaction: Apart from notable w

Cited by 37SourceScholar
2019

Actuation and stiffening in fluid-driven soft robots using low-melting-point material

IROS 2019poster

Soft material robots offer a number of advantages over traditional rigid robots in applications including human-robot interaction, rehabilitation and surgery. These robots can navigate around obstacles, elongate, squeeze through narrow openings or be squeezed - and they are considered to be inherent…

Cited by 41SourceScholar
2019

Sizing the aortic annulus with a robotised, commercially available soft balloon catheter: in vitro study on idealised phantoms

ICRA 2019poster

Transcatheter aortic valve implantation (TAVI) is a minimally invasive surgical technique to treat aortic heart valve diseases. According to current clinical guidelines, the implanted prosthetic valve replacing the native one is selected based on pre-operative size assessment of the aortic annulus t…

Cited by 14SourceScholar
2018

Static Kinematics for an Antagonistically Actuated Robot Based on a Beam-Mechanics-Based Model

IROS 2018poster

Soft robotic structures might play a major role in the 4th industrial revolution. Researchers have successfully demonstrated advantages of soft robotics over traditional robots made of rigid links and joints in several application areas including manufacturing, healthcare and surgical interventions.…

Cited by 19SourceScholar
2018

Towards a Modular Suturing Catheter for Minimally Invasive Vascular Surgery

ICRA 2018poster

Endovascular aneurysm repair (EVAR) is a minimally invasive approach for abdominal aortic aneurysm (AAA) treatment. Compared to open surgery, the benefits of EVAR include faster recovery and shorter time in hospital as well as no general anesthesia (in most cases). Though EVAR has become a preferred…

Cited by 5SourceScholar
2017

Variable Stiffness Link (VSL): Toward inherently safe robotic manipulators

ICRA 2017poster

Nowadays, the field of industrial robotics focuses particularly on collaborative robots that are able to work closely together with a human worker in an inherently safe way. To detect and prevent harmful collisions, a number of solutions both from the actuation and sensing sides have been suggested.…

Cited by 78SourceScholar
2016

Tendon-Based Stiffening for a Pneumatically Actuated Soft Manipulator

RA-L 2016

There is an emerging trend toward soft robotics due to its extended manipulation capabilities compared to traditionally rigid robot links, showing promise for an extended applicability to new areas. However, as a result of the inherent property of soft robotics being less rigid, the ability to contr

Cited by 186SourceScholar
2015

Tendon and pressure actuation for a bio-inspired manipulator based on an antagonistic principle

ICRA 2015poster

This paper proposes a soft, inflatable manipulator that is antagonistically actuated by tendons and pneumatics. The combination of the two actuation mechanisms in this antagonistic robot structure is inspired by the octopus which uses its longitudinal and transversal muscles to steer, elongate, shri…

Cited by 139SourceScholar