Results 61 to 70 of about 13,046 (309)

The choosing of optimal cell parameters of transcatheter aortic valve prosthesis [PDF]

open access: yesКомпьютерные исследования и моделирование, 2014
This paper presents the analysis of dependences between frame basic cell geometry parameters and function via finite element analysis. The simplified models of frame cell with varied strut width, thickness and quantity in a circle was researched to ...
Evgeny Andreevich Ovcharenko   +4 more
doaj   +1 more source

Meshalkin National Medical Research Center

open access: yesРоссийский кардиологический журнал, 2021
We present three cases of successful transatrial transcatheter valve-in-valve implantation in patients with bioprosthetic mitral valve dysfunction.
A. V. Bogachev-Prokofiev   +10 more
doaj   +1 more source

Smart Transfemoral Prosthetic Socket with Motorized Cable‐Driven System

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents an innovative transfemoral socket featuring a motorized cable‐driven system and a sensorized liner, designed to adapt to changes in residual limb volume while monitoring interface pressures. Users can seamlessly control the socket in both open‐ and closed‐loop modes via a customized mobile application, enhancing comfort and ...
Linda Paternò   +7 more
wiley   +1 more source

Remoção cirúrgica de trombos em próteses valvulares mecânicas Surgical removal of thrombi in mechanical valvular prostheses

open access: yesBrazilian Journal of Cardiovascular Surgery, 1993
É relatada a retirada cirúrgica de trombos em próteses mecânicas em dois pacientes, manobra rara e inédita em nossa Instituição. O primeiro paciente, do sexo masculino, de 19 anos de idade, com história de doença reumática na infância, tendo sido ...
Pablo M. A Pomerantzeff   +9 more
doaj  

Temporal–Spatial Replication of the Pulse Haptic Sensation Empowered by Multifunctional Piezoelectret

open access: yesAdvanced Intelligent Systems, EarlyView.
Dynamic pressure sensing, static pressure sensing, and haptic vibration are implemented on multifunctional piezoelectret devices with the universal structural design, further combined with the customized pressure device to comprehensively simulate and expand the Traditional Chinese Medicine (TCM) three‐finger palpation.
Liuyang Han   +9 more
wiley   +1 more source

Retroca valvular Replacement of heart valves prostheses

open access: yesBrazilian Journal of Cardiovascular Surgery, 1987
A reoperação de próteses valvulares tem sido realizada, com freqüência cada vez maior, nos vários Serviços de cirurgia cardíaca. Os detalhes do tratamento, a indicação e a técnica operatória melhoraram os resultados. No período de janeiro de 1984 a junho
Pablo M. A Pomerantzeff   +12 more
doaj  

Fluid dynamics of aortic root dilation in Marfan syndrome

open access: yes, 2014
Aortic root dilation and propensity to dissection are typical manifestations of the Marfan Syndrome (MS), a genetic defect leading to the degeneration of the elastic fibres. Dilation affects the structure of the flow and, in turn, altered flow may play a
Costantini, Martina   +4 more
core   +1 more source

An Ultrathin and Lightweight Soft Inflatable Actuator for Natural Tactile Sensory Feedback

open access: yesAdvanced Intelligent Systems, EarlyView.
A lightweight, ultrathin soft actuator mimics natural touch by delivering strong, multimodal haptic feedback through pressure and vibration. Tested on both able‐bodied individuals and amputees, it achieves high sensory precision in a compact form. Its simplicity, power, and adaptability hint at transformative applications in prosthetics, immersive ...
Hanna Scherer   +7 more
wiley   +1 more source

Reconstituição da valva pulmonar e via de saída do ventrículo direito, com prótese bivalvular e prótese tubular valvada de tronco pulmonar de porco: estudo experimental e aplicação clínica Pulmonary valve and right ventricular oulet tract reconstruction with biovalvular prostheses and valved tubular prostheses of the pig pulmonary artery: experimental study and clinical application

open access: yesBrazilian Journal of Cardiovascular Surgery, 1993
A obstrução da via de saída do ventrículo direito (VSVD) tem gerado muita polêmica em torno da técnica da sua correção cirúrgica, sendo a reconstituição ainda motivo de controvérsias.
Miguel A Maluf   +11 more
doaj  

Morphological and morphometric aspects of the equine aortic valve: New insights for comparative studies in mammals

open access: yesThe Anatomical Record, EarlyView.
Abstract New data on the equine aortic valve obtained using advanced techniques is especially important given the greater availability of animal models for translational research. Here we characterized the morphological and morphometric aspects of the equine aortic valve from 60 healthy hearts collected at equine abattoirs.
Vitor Pires Pereira   +3 more
wiley   +1 more source

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