2013 Pan American Health Care Exchanges (PAHCE)最新文献_第3页

Module to present and identify motor imagery tasks in electroencephalography 单元介绍和识别脑电图中的运动图像任务

2013 Pan American Health Care Exchanges (PAHCE) Pub Date : 2013-07-25 DOI: 10.1109/PAHCE.2013.6568218

J. Cantillo-Negrete, J. Gutiérrez-Martínez, R. Carino-Escobar, D. Elías-Viñas

{"title":"Module to present and identify motor imagery tasks in electroencephalography","authors":"J. Cantillo-Negrete, J. Gutiérrez-Martínez, R. Carino-Escobar, D. Elías-Viñas","doi":"10.1109/PAHCE.2013.6568218","DOIUrl":"https://doi.org/10.1109/PAHCE.2013.6568218","url":null,"abstract":"This work presents a module that aims to facilitate the acquisition of motor imagery tasks in electroencephalography (EEG) research. The device components are: a microcontroller which sets the time intervals of the events of a Graz type paradigm, and sends markers to an EEG acquisition system; a software that presents the visual and auditory clues of the paradigm in a personal computer (PC) for the test subject to perform the motor imagery tasks; and an algorithm aimed to extract the EEG information related to the motor imagery tasks. In the module validation, a delay of 1 ± 0.5 ms between the time in which the microcontroller marks the event in the EEG amplifier and the time in which the event is showed to the subject in the computer's monitor was measured. Furthermore, an average difference of 167 μs was obtained between the time intervals theoretically set for every event and the time intervals obtained. The module was tested in the EEG acquisition of motor imagery tasks in a BCI research protocol involving thirty healthy subjects. The module was successful at presenting the paradigm in all the trials and in indentifying the events of each trial in the signals that were recorded.","PeriodicalId":151015,"journal":{"name":"2013 Pan American Health Care Exchanges (PAHCE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117097571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

An accelerometer-based embedded system-on-chip for measuring human-body joint angles 一种基于加速度计的嵌入式片上系统，用于测量人体关节角度

2013 Pan American Health Care Exchanges (PAHCE) Pub Date : 2013-07-25 DOI: 10.1109/PAHCE.2013.6568247

A. Caballero, J. J. C. Lopez

{"title":"An accelerometer-based embedded system-on-chip for measuring human-body joint angles","authors":"A. Caballero, J. J. C. Lopez","doi":"10.1109/PAHCE.2013.6568247","DOIUrl":"https://doi.org/10.1109/PAHCE.2013.6568247","url":null,"abstract":"Joint angular sensors are widely used in industry, from highly effective robots in product lines and heavy construction machines to different home appliances. Likewise in the medical field, parameters of human motion, especially the orientations of lower limb segments, are crucial in clinical evaluations and therapeutic treatments in the orthopedic and rehabilitation fields. This paper presents the design and implementation of an embedded system-on-chip for measuring human-body joint angles using MEMS accelerometers and PSoC mixed-signal circuits. It focuses on two algorithms, one called CMR and another DCMR, and utilizes the property of rigid body kinematics to explain their advantages and weaknesses. Unlike CMR algorithm, DCMR algorithm has no requirement on placing the sensors close to the joint center. This provides greater flexibility for the sensor installation. An auto-adjustment procedure is described and both algorithms are characterized on a rigid body robot arm model and compared with a reference system. Experimental results showed that the algorithms were able to measure joint angles in real time, and their accuracy was high enough to be used in ambulatory human-body joint angle measurements and feedback control systems for gait assistance.","PeriodicalId":151015,"journal":{"name":"2013 Pan American Health Care Exchanges (PAHCE)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115855561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Design of a piezoelectric immunosensor for tuberculosis biomarker detection 结核生物标志物检测压电免疫传感器的设计

2013 Pan American Health Care Exchanges (PAHCE) Pub Date : 2013-07-25 DOI: 10.1109/PAHCE.2013.6568332

M. Jaramillo, Y. Montagut, Angel Montoya, Jaime Robledo, P. A. Marin, J. E. Betancur, M. Moreno, Elizabeth Pabón, R. A. Torres

{"title":"Design of a piezoelectric immunosensor for tuberculosis biomarker detection","authors":"M. Jaramillo, Y. Montagut, Angel Montoya, Jaime Robledo, P. A. Marin, J. E. Betancur, M. Moreno, Elizabeth Pabón, R. A. Torres","doi":"10.1109/PAHCE.2013.6568332","DOIUrl":"https://doi.org/10.1109/PAHCE.2013.6568332","url":null,"abstract":"Monoclonal antibodies have been applied in biomedical research for diagnosis of various diseases and for the treatment of increasing prevalence diseases such as tuberculosis. There is a need to develop systems capable of detecting tuberculosis-related biomarkers that can provide a quick diagnosis to begin treatment immediately. Thanks to the advances in research for detection, biosensors technologies are emerging as a good alternative for clinical applications. The aim of this work was to develop a piezoelectric immunosensor for rapid and efficient tuberculosis detection. To this purpose, 12 hybridomas and their secreted monoclonal antibodies specific for a biomarker of Mycobacterium tuberculosis were obtained as potential bio-receptors. The monoclonal antibody affinity to the antigenic protein of interest was tested by ELISA. Surface functionalization of the gold electrode - the transducer - of a Quartz Crystal Microbalance (QCM) was simulated by the formation of Self-Assembled Monolayers (SAM) of BSA as a model protein. The functionalized surface was image-characterized by Atomic Force Microscopy (AFM). The appropriate electronic instrumentation system for QCM characterization, with temperature control, was also developed. The obtained immunoreagents will be used as specific recognition bioactive molecules, in combination with functionalized quartz crystals, to build a piezoelectric immunosensor for the detection of Mycobacterium tuberculosis biomarkers, which can be related to the disease.","PeriodicalId":151015,"journal":{"name":"2013 Pan American Health Care Exchanges (PAHCE)","volume":"362 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122816471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Properties of biocompatible materials for use in maxillary bone regeneration: A review 上颌骨再生中生物相容性材料的研究进展

2013 Pan American Health Care Exchanges (PAHCE) Pub Date : 2013-07-25 DOI: 10.1007/978-3-319-13117-7_57

M. Mejía, N. Zapata, P. Villegas

引用次数: 0

Titanium surface modification by Directed Irradiation Synthesis (DIS): Nanostructuring for regenerative medicine 钛表面定向辐照修饰:用于再生医学的纳米结构

2013 Pan American Health Care Exchanges (PAHCE) Pub Date : 2013-07-25 DOI: 10.1109/PAHCE.2013.6568323

J. Pavón, O. El-Atwani, E. Walker, S. Arias, J. Allain

引用次数: 0

Bionic hip prosthesis based on polycentric mechanisms 基于多中心机构的仿生髋关节假体

2013 Pan American Health Care Exchanges (PAHCE) Pub Date : 2013-07-25 DOI: 10.1109/PAHCE.2013.6568260

M. Pina Aragón, G. A. V. Orozco, A. Altamirano Altamirano

引用次数: 5

Biomaterials based on small intestinal submucosa (SIS) for esophagus regeneration 基于小肠黏膜下层(SIS)的生物材料用于食管再生

2013 Pan American Health Care Exchanges (PAHCE) Pub Date : 2013-07-25 DOI: 10.1109/PAHCE.2013.6568232

J. M. Zambrano, S. A. Cadena, G. Martinez, A. M. Cuellar, D. Tabima

引用次数: 0

Diagnostic methodology based on LEED system for energy and environmental evaluation of healthcare facilities 基于LEED系统的医疗设施能源和环境评价诊断方法

2013 Pan American Health Care Exchanges (PAHCE) Pub Date : 2013-07-25 DOI: 10.1109/PAHCE.2013.6568235

J. J. Cardenas, G. Gallego, A. Escobar, A. Trejos, M. Pérez

引用次数: 0

A mobile application for ambulatory electrocardiographic monitoring in clinical and domestic environments 用于临床和家庭环境的动态心电图监测的移动应用程序

2013 Pan American Health Care Exchanges (PAHCE) Pub Date : 2013-07-25 DOI: 10.1109/PAHCE.2013.6568306

A. J. Saldarriaga, Jairo J. Pérez, J. Restrepo, J. Bustamante

{"title":"A mobile application for ambulatory electrocardiographic monitoring in clinical and domestic environments","authors":"A. J. Saldarriaga, Jairo J. Pérez, J. Restrepo, J. Bustamante","doi":"10.1109/PAHCE.2013.6568306","DOIUrl":"https://doi.org/10.1109/PAHCE.2013.6568306","url":null,"abstract":"Computational power and interconnection capacities have contributed smartphones and tablets to become an essential tool to medical sector. Developed countries have demonstrated that mobile devices may be considered as equipment for tracking, monitoring, reading updating and treatment assistance; hence, they will be portable health care support machines. We have developed a mobile application for ambulatory electrocardiographic monitoring based on Android and iOS (iPhone Operating System), which contributes to proceed with accuracy in daily activities connecting different zones. The application, composed by buttons, switches, sliders and rotating screens, runs under two scenarios: patient and doctor mode, allowing medical personnel to define different configurations. Both modes permit users to visualize in real time captured readings and tracings. Its advantages have increased in capabilities and decreased complexities, becoming one of the main instruments at hospital environments. It has been proven that such devices have better performance through the usage of cloud computing services, low power consumption and low number of connections. This paper aims to stimulate medical personnel the use of capacities for mobile devices through medical applications and guide diagnose procedures with efficiency.","PeriodicalId":151015,"journal":{"name":"2013 Pan American Health Care Exchanges (PAHCE)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131574989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Design and development of customized temporomandibular joint prosthesis system: Case presentation 定制型颞下颌关节假体系统的设计与开发:案例报告

2013 Pan American Health Care Exchanges (PAHCE) Pub Date : 2013-07-25 DOI: 10.1109/PAHCE.2013.6568210

A. Arango, J. Velasquez, N. Valencia, M. Toro, T. Rios

引用次数: 0