Results 61 to 70 of about 617,309 (289)

Double orifice mitral valve associated with Ventricular Septal Defect in an infant : case report [PDF]

, 2011
Double orifice mitral valve (DOMV) is an uncommon anomaly characterized by a mitral valve with a single fibrous annulus with two orifices opening into the left ventricle.
Taksande, Amar M., Thomas, E., Goutami, V.   +2 more
core  

Comparative evaluation of left ventricular mass regression after aortic valve replacement: a prospective randomized analysis [PDF]

, 2011
Background: We assessed the hemodynamic performance of various prostheses and the clinical outcomes after aortic valve replacement, in different age groups.
Wood Jeffrey P, Doss, Mirko, Moritz Anton, Arndt H Kiessling, Mirko Doss, Kiessling, Arndt Holger, Anton Moritz, Jeffrey P Wood, Wood, Jeffrey P., Moritz, Anton, Doss Mirko, Kiessling Arndt H   +11 more
core   +2 more sources

Programmable Pneumatic Actuator System for a Bioinspired Artificial Colon

Advanced Materials Technologies, EarlyView.
A modular soft robotic colon simulator driven by programmable pneumatic actuation is developed to mimic physiological and pathological‐like motility patterns of the large intestine. Finite element–guided design and distributed control enable anatomically realistic deformation for peristalsis, segmentation, and mass movements, supporting capsule ...
Andrew Bickerdike, Bo Tian, Xizheng Fang, Zepeng Wang, Yang Liu, Lucy Adams, Shyam Prasad   +6 more
wiley   +1 more source

Multi-omics profiling identifies intestinal microbial shifts and tissue-specific immunometabolic changes associated with experimental Nocardia seriolae challenge in hybrid sturgeon (Acipenser baerii♀ × Acipenser schrenckii♂)

Frontiers in Microbiology
IntroductionNocardia seriolae is an important bacterial pathogen in aquaculture, but the intestinal microbial, transcriptional, and metabolic responses of hybrid sturgeon (Acipenser baerii♀ × Acipenser schrenckii♂) to infection remain poorly understood ...
Luyun Ni, Bo Xian, Feiyang Li, Qiaolin Zou, Jun Du, Jiansheng Lai, Ya Liu   +6 more
doaj   +1 more source

A Constraint‐Based Analytical Framework for Design‐Space Analysis and Material Screening of Tubular Multilayer Dielectric Elastomer Pumps for Extracorporeal Circulatory Applications

Advanced Materials Technologies, EarlyView.
A constraint‐based analytical framework maps the coupled effects of material properties, structural parameters, and operating conditions in tubular dielectric elastomer pumps for extracorporeal circulatory applications. The approach defines performance boundaries through mechanical, electrical, and hydraulic constraints and identifies feasible design ...
Yan Zhang, Amine Benouhiba, Yoan Civet, Yves Perriard   +3 more
wiley   +1 more source

A bio-inspired intestine robot utilizing soft origami Kresling structures to imitate peristaltic wave motion and transport

Biomimetic Intelligence and Robotics
This paper presents a single-drive bio-inspired intestine robot that leverages the coupled rotational-contraction dynamics of Kresling origami structures and unidirectional valves to replicate intestinal peristalsis for directional transport.
Manjia Su, Beibin Liang, Haoxu Chen, Jing Lan, Jinhui Zhou, Hua Zhong, Yijiong Lin, Chunlong Wang, Ruiwei Liu   +8 more
doaj   +1 more source

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

COLON ATRESIA IN COMBINATION WITH HIRSCHSPRUNG’S DISEASE: A RARE CLINICAL CASE

Учёные записки Санкт-Петербургского государственного медицинского университета им. Акад. И.П. Павлова, 2019
Introduction. Hirschsprung’s disease is a congenital anomaly characterized by the absence of ganglion cells in submucosal and intramuscular layers of intestinal wall that leads to the intestinal obstruction. 70–80 % of cases are isolated malformation but
S. A. Karavaeva, A. V. Kagan, A. N. Kotin, T. V. Kesaeva   +3 more
doaj   +1 more source

Artificial intestinal valves in the surgery of the alimentary tract.

The Japanese Journal of Gastroenterological Surgery, 1984
telescoping anastomosisおよびnon-transected muscular valve形成法によって, 回盲弁に相当した機能をもった人工腸弁を作成した. この人工腸弁は一層の筋層, 特に内輪筋層の肥厚がその主体をなすもので, 順蠕動方向通過圧25cmH2O以下, 逆流圧40cmH2Oの弁機能を有する. かつ臨床例では形成後10年以上も初期機能を維持することが認められた. 臨床的に腸内容移送調節の目的で腸管広汎切除例7例に設置し, 6例に便性状, 便通の改善を認めた. 逆流防止機能を期待して設置した症例は胃全摘術5例, 胆道再建術10例, 先天性胆道閉鎖症22例, 空腸瘻, 結腸瘻各1例, Whipple手術, 膵嚢胞空腸吻合各2例, 合計43例で, いづれにも効果が認められた.
SATOMURA, Kisaku, HANAFUSA, Tetsuji, TANAKA, Kohichi, KATO, Hiroaki, MATSUKAWA, Yasuhiro, NAKAMOTO, Kohichi, KISAKA, Yoshihiko, ZHENG, Han-Long, OHNISHI, Satoshi   +8 more
openaire   +2 more sources