Results 141 to 150 of about 420,031 (315)

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

Advanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

Toward Wireless Implantable Robotic Systems Driven by Magnetic Field for Personalized Therapy

Advanced Robotics Research, EarlyView.
Robotic materials are playing an increasingly vital role in enabling sensing and actuation at small scales. This perspective highlights recent advances in magnetic materials and magnetically actuated devices for wireless sensing, actuation, and energy harvesting toward implantable robotic systems for closed‐loop therapy.
Yusheng Wang, Ruijian Ge, Xiaoguang Dong
wiley   +1 more source

Pregnancy Outcome after Mechanical Mitral Valve Replacement: A Prospective Study

Journal of Tehran University Heart Center, 2015
Background: Pregnant patients with mechanical heart valves require anticoagulation. The risk of bleeding and embryopathy associated with oral anticoagulants must be weighed against the risk of valve thrombosis.
Niloufar Samiei, Fahimeh Kashfi, Amirjamshid Khamoushi, Saeid Hosseini, Alireza Alizadeh-Ghavidel, Robabeh Taheripanah, Yalda Mirmesdagh   +6 more
doaj  

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Preface: Heart Valves [PDF]

Journal of Long-Term Effects of Medical Implants, 2015
openaire   +2 more sources

A Soft Robotic Device for Targeted Massage Therapy of Residual Limbs

Advanced Robotics Research, EarlyView.
Residual limb edema after amputation can hinder recovery and delay prosthetic fitting. This study presents a soft‐robotic wearable device that delivers sequential compression through pneumatic McKibben actuators. By replicating the principles of manual lymphatic drainage, the device generates controlled mechanotherapeutic pressure patterns, providing a
Maria Grazia Polizzotto, Alessio Capecchi, Maartje Van der Lingen, Emanuele Gruppioni, Arianna Menciassi, Linda Paternò   +5 more
wiley   +1 more source

Topography of aortic heart valves [PDF]

The cooperative effort towards the development of a tri-leaflet prosthetic heart valve is described. The photogrammetric studies were conducted on silicone rubber molds.
Karara, H. M.
core   +1 more source

Transcatheter Aortic Valve Replacement in Patient With Extensive Aortic Dissection: Role of “Balloon Flossing”

Journal of the Society for Cardiovascular Angiography & Interventions
Jadon Rajagopal, Rishab Jayanthi, BS, James P. Stewart, MD, Raul R. Blanco, MD, William M. Brown, MD, James R. Kauten, MD, Mark R. Helmers, MD, Vinod H. Thourani, MD, Pradeep K. Yadav, MD   +8 more
doaj   +1 more source

Commentary: Accomplishing mission impossible: Transcatheter mitral valve-in-valve replacement for failing intra-atrial bioprosthetic mitral valvesCentral Message

JTCVS Techniques, 2021
J. Trent Magruder, MD, Pradeep K. Yadav, MD, Vinod H. Thourani, MD   +2 more
doaj   +1 more source