Results 111 to 120 of about 89,308 (311)

Minimally invasive direct CABG versus off-pump CABG: Can less be more

Hellenic Journal of Cardiology, 2020
Gregory Pattakos
doaj   +1 more source

Artificial Heart Valves [PDF]

JAMA, 2021
William C, Frankel, Tom C, Nguyen
openaire   +2 more sources

A Worm‐Inspired Origami Robot with Multimodal Locomotion for Adaptive Mobility in Complex Pipeline Environments

Advanced Science, EarlyView.
An origami worm‐inspired robot achieves multimodal locomotion in confined pipelines through mechatronic integration that embeds actuation, control, and communication within each origami module. Large, reversible configuration and dimensional changes enable 25 gaits synthesized by a unified framework across peristaltic, inchworm, and wheel‐rolling modes
Qiwei Zhang, Kangning Tan, Zihan He, Hongsen Pang, Yanjie Wang, Hongbin Fang, Jian Xu   +6 more
wiley   +1 more source

Heart Valves - صمامات القلب

, 2020
باحثون من جامعة قطر يقومون بطباعة صمامات قلب تحاكي وتنمو كالأنسجة الطبيعية Qatar University living heart valves - research to change the lives of ...

core  

Heart valves affection in patients with myocardial infarction [PDF]

, 2011
Aim. То investigate the heart valves affection in patients with myocardial infarction (Ml), to determine it's effect on the development of heart failure. Material and methods.
Павлова, А. С., Празднов, А. С., Pavlova, A. S., Prazdnov, A. S.   +3 more
core  

Electrohydraulic Folding Ring Actuators for Radially Contracting Applications

Advanced Science, EarlyView.
This work presents an Electrohydraulic Folding Ring Actuator that combines high‐performance electrohydraulic actuation with origami‐inspired folding geometry to achieve constricting radial actuation. This integration yields significant inner lumen constriction, alongside a gripping force capable of holding objects exceeding four times the actuator's ...
Gavril Yong En Tan, Quan Xiong, Jonathan William Ambrose, Zeynep Altundal, Raye Chen‐Hua Yeow   +4 more
wiley   +1 more source

Advances in xenogeneic donor decellularized organs: A review on studies with sheep and porcine‐derived heart valves

Bioengineering & Translational Medicine
Heart valve replacement surgeries are performed on patients suffering from abnormal heart valve function. In these operations, the problematic tissue is replaced with mechanical valves or with bioprosthetics that are being developed.
Muslum Suleyman Inal, Huseyin Avci, Shabir Hassan, Cihan Darcan, Su Ryon Shin, Ali Akpek   +5 more
doaj   +1 more source

A chronological history of heart valve prostheses to offer perspectives of their limitations

Frontiers in Bioengineering and Biotechnology
Prosthetic heart valves (PHV) have been studied for around 70 years. They are the best alternative to save the life of patients with cardiac valve diseases. However, current PHVs may still cause significant disadvantages to patients.
Raquel Ahnert Aguiar Evangelista, Ana Luiza Resende Pires, Breno Valentim Nogueira, Breno Valentim Nogueira   +3 more
doaj   +1 more source

Sulfated Cyclocarya Paliurus Polysaccharide Sorchestrates the Gut Microbiome to Mobilize a Host‐Derived 12‐HEPE Against Ulcerative Colitis

Advanced Science, EarlyView.
A sulfated polysaccharide (SCP) from Cyclocarya paliurus alleviates ulcerative colitis by reshaping the gut microbiome. This remodeled microbiota orchestrates the upregulation of the host‐derived lipid 12‐HEPE, which directly inhibits the TLR4/NF‐κB pathway to suppress inflammation.
Xianxiang Chen, Mingyue Shen, Rui Zhang, Zhibing Huang, Hui Niu, Qiang Yu, Yi Chen, Xiangwen Pan, Liyuan Rong, Huiliang Wen, Jun Yang, Jianhua Xie   +11 more
wiley   +1 more source

Structural Insufficiency Anomalies in Cardiac Valves

, 2018
Heart valves are the basic functional structure of the heart to obtain, sustain, and maintain blood circulations in the body without energy loss, allowing blood regurgitation or obstructing blood flow.

core   +1 more source