Tecnología Médica

Tecnología Médica

Effect of increasing porosity as drug reservoirs for local drug delivery in an auxetic stent
15/06/2022 - Stent is a small cylindrical mesh which is implanted in narrowing vessels to prevent the vessel wall from constriction. To provide more energy absorption and radial strength of the scaffold, a...
How to transform an Aortic Valve Prostheses into an UHF antenna for the RFID-based Wireless Monitoring of the Cardiac Health
15/06/2022 - Heart valve replacement is one of the most common life-saving surgery procedures. Although valve prostheses can restore heart functionality and life expectations, they often suffer from structural...
An Ultra-miniaturized Antenna with Ultra-wide Bandwidth for Future Cardiac Leadless Pacemaker
30/03/2022 - The detuning owing to the complex in-body operating scenarios, environmental factors, and circuitry of the implantable medical devices (IMDs) are the primary concerns in integrating implantable...
Towards a Leadless Wirelessly Controlled Intravenous Cardiac Pacemaker
30/03/2022 - Objective: Traditional lead-based cardiac pacemakers suffer from lead-related complications including lead fracture, lead dislodgement, and venous obstruction. Modern leadless pacemakers mitigate...
Towards Durability Estimation of Bioprosthetic Heart Valves Via Motion Symmetry Analysis
18/02/2022 - This paper addresses bioprosthetic heart valve (BHV) durability estimation via computer vision (CV)-based analyses of the visual symmetry of valve leaflet motion. BHVs are routinely implanted in...
Comparison of Responses of Ion-Channel and Simplified Pacemaker Cell Models on External Stimulation
16/02/2022 - For cardiac electrical modeling and validation of various systems for personalized medicine, such as implantable devices, computationally efficient simplified models are preferable. It is...
Hemolytic Footprint of Rotodynamic Blood Pumps
16/02/2022 - Objective: In preclinical examinations, rotodynamic blood pumps (RBPs) are predominantly evaluated at design-point conditions. In clinical practice, however, they run at diversified modes of...
Ultra-low power system for atrioventricular synchronization using leadless pacemakers
11/02/2022 - Leadless cardiac pacemakers (LCP) are the cutting-edge technology of cardiac rhythm management (CRM), reducing complication risks and treatment invasivity. Current leadless cardiac pacemakers can...
Atrial Fibrillatory Rate Characterization Extracted from Implanted Cardiac Monitor Data
11/02/2022 - The aim of this study is to characterize atrial fibrillatory rate (AFR) extracted from a cohort of continuously monitored atrial fibrillation (AF) patients as function of episode duration and...
Design of a Bi-Directional Wireless Data Transceiver for Implantable Biomedical Device
11/02/2022 - In this paper, we have presented a high data rate transceiver with low power consumption. The major parts of our design are transmitter and receiver. We have used 180-nm CMOS process has been used...
Technologies for Wireless Transcutaneous Transfer of Power to Implanted Devices
11/02/2022 - The article discusses the issues of existing technologies and standards for wireless energy transmission, which can become the basis for the developed methods of wireless transcutaneous transfer...
A Compact Wideband Circularly Polarized Implantable Antenna for Cardiac Pacemaker Devices
05/11/2021 - We propose a novel compact circularly polarized implantable antenna working at the Medical Implant Communications Service (MICS) band (400 MHz). The proposed antenna has a small overall size of...
A Novel Development of Endovascular Aortic Stent System Featuring Promising Antenna Characteristics
05/11/2021 - This paper presents a deeply implanted stent antenna system for endovascular aneurysm repair (EVAR) to treat abdominal aortic aneurysm (AAA). The stent antenna is composed of multiple helical...
Sistemas de controle e supervisão para Dispositivos de Assistência Ventricular
05/11/2021 - Em pacientes com cardiopatias graves, o implante de Dispositivo de Assistência Ventricular (DAV) pode ser necessário, principalmente em pacientes com indicação de...
Challenges to the development of the next generation of self-reporting cardiovascular implantable medical devices
20/10/2021 - Cardiovascular disease (CVD) is a group of heart and vasculature conditions which are the leading form of mortality worldwide. Blood vessels can become narrowed, restricting blood flow, and drive...
A 2.63 ?W ECG Processor With Adaptive Arrhythmia Detection and Data Compression for Implantable Cardiac Monitoring Device
22/09/2021 - An ultra-low power ECG processor ASIC (application specific integrated circuit) with R-wave detection and data compression is presented, which is designed for the long-term implantable cardiac...
Uninterruptable Transcutaneous Wireless Power Supply for an LVAD: Experimental Validation and EMF Safety Analysis
15/09/2021 - An uninterruptable wireless power supply is developed for a left ventricular assist device (LVAD), which is an implanted, electrically driven centrifugal pump used to treat advanced heart failure...
Non-invasive Treatment for Coronary In-stent Restenosis via Wireless Revascularization with Nitinol Active Stent
18/08/2021 - This paper reports a novel shape memory alloy (SMA) nitinol type active stent for non-invasive restenosis treatment, which operates using a radiofrequency (RF) electro-thermo-mechanical actuation...
Multisite bio-stimulating implants magnetoelectrically powered and individually programmed by a single transmitter
16/06/2021 - Implantable bioelectronics for electrically modulating activities of specific cells have shown great success and exciting potential in treating a wide range of diseases. Some of the most...
A Power Efficient Time-to-Current Stimulator for Vagal-Cardiac Connection after Heart Transplantation
13/05/2021 - This paper presents a stimulator for a cardiac neuroprosthesis aiming to restore the parasympathetic control after heart transplantation. The stimulator is based on time-to-current conversion,...
The CardioVASS Heart Model: Comparison of Biomaterials between TPU Flex and Soft Epoxy Resin for Biomedical Engineering Application
15/04/2021 - Nowadays, the implementation of the polymer biomaterial for the fabrication of the heart model is still considered new. To improve the materials used in the fabrication, many researchers tried to...