Medical devices & sensors最新文献_第8页

Clinical study of a chest-based cuffless blood pressure monitoring system 胸部无袖带血压监测系统的临床研究

Medical devices & sensors Pub Date : 2020-05-13 DOI: 10.1002/mds3.10091

Fatemeh Heydari, Malikeh P. Ebrahim, Jean-Michel Redoute, Keith Joe, Katie Walker, Alberto Avolio, Mehmet R. Yuce

{"title":"Clinical study of a chest-based cuffless blood pressure monitoring system","authors":"Fatemeh Heydari, Malikeh P. Ebrahim, Jean-Michel Redoute, Keith Joe, Katie Walker, Alberto Avolio, Mehmet R. Yuce","doi":"10.1002/mds3.10091","DOIUrl":"10.1002/mds3.10091","url":null,"abstract":"<p>This work presents a clinical study of a chest-based blood pressure (BP) monitoring technique. This research was designed to examine pulse transit time (PTT) and to measure beat-to-beat and cuff-based systolic BP (SBP) and diastolic BP (DBP). The PTT values were extracted as the time difference between the end of the pre-ejection period (PEP) measured using an on-body continuous-wave radar (CWR) sensor and the pulse arrival time (PAT) in central arteries extracted from the shoulders' bio-impedance (BImp) signal. The system was investigated under three experimental conditions: (a) resting at various postures; (b) rising exercise stress, followed by resting; and (c) spraying inconstant doses of glyceryl trinitrate (GTN) medicine and recovery. Data were collected from 43 volunteers who participated in posture recordings, 26 undertook exercises and 17 experienced GTN spray. The BImp-based PTT was compared with PPG-based one (peripheral) in terms of BP estimation. Various mathematical methods of calculating BPs from PTTs were investigated to gain the most accurate outcomes. We demonstrate the accuracy of each model in this work. Our study found that cuffless BP determined from PTT derived from central arteries shows more than 3% accuracy compared to that determined from peripheral arteries.</p>","PeriodicalId":87324,"journal":{"name":"Medical devices & sensors","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/mds3.10091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42717448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

In situ electrical stimulation for enhanced bone growth: A mini-review 原位电刺激促进骨生长:一个小回顾

Medical devices & sensors Pub Date : 2020-05-12 DOI: 10.1002/mds3.10090

Chandra Khatua, Dipten Bhattacharya, Vamsi Krishna Balla

{"title":"In situ electrical stimulation for enhanced bone growth: A mini-review","authors":"Chandra Khatua, Dipten Bhattacharya, Vamsi Krishna Balla","doi":"10.1002/mds3.10090","DOIUrl":"10.1002/mds3.10090","url":null,"abstract":"<p>The role of electrical stimuli in directing cellular activities during natural tissue healing and regeneration process has been well recognized. This observation has prompted the development and use of exogenous electrical stimulations in the treatment of delayed unions and non-unions of bone fracture in different parts of the human skeletal system. Considerable amount of clinical evidences has also been generated on the benefits of exogenous bone growth stimulators. However, the clinical efficacy and safety of these exogenous electrical stimulating methods are being argued to be inconsistent and inconclusive, due to lack of sufficient number of well-controlled, randomized clinical studies. As a result, there has been significant interest in the development of smart biomaterials, which can generate in situ electrical stimuli, for accelerated bone repair, healing and regeneration. These smart biomaterials are essentially either composite biomaterials containing electrically active materials or biomaterials that can be polarized. The primary objective of this mini review was to provide an overview of different exogenous electrical stimulation methods and biocomposites for in situ stimulation, which can be used for bone growth and healing. The first part is focused on exogenous stimulation methods, and the second part discusses the use of biocomposites containing electrically active materials such as piezoelectric materials and multiferroic materials for accelerated repair and regeneration of bone.</p>","PeriodicalId":87324,"journal":{"name":"Medical devices & sensors","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/mds3.10090","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43862165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Rationally designed chimeric solid‐binding peptides for tailoring solid interfaces 合理设计的嵌合固体结合肽用于剪裁固体界面

Medical devices & sensors Pub Date : 2020-05-09 DOI: 10.1002/mds3.10065

Deniz T. Yucesoy, Dimitry Khatayevich, C. Tamerler, M. Sarikaya

引用次数: 9

A perspective on sepsis pathogenesis, biomarkers and diagnosis: A concise survey 脓毒症的发病机制、生物标志物和诊断:一个简明的调查

Medical devices & sensors Pub Date : 2020-05-04 DOI: 10.1002/mds3.10089

Souvik Kundu, Shawana Tabassum, Ratnesh Kumar

引用次数: 7

Examining the design, manufacturing and analytics of smart wearables 检查智能可穿戴设备的设计、制造和分析

Medical devices & sensors Pub Date : 2020-04-28 DOI: 10.1002/mds3.10087

Ximena López, K. Afrin, Bimal P. Nepal

引用次数: 9

Bio-electrochemical response to sense implant degradation 传感植入物降解的生物电化学响应

Medical devices & sensors Pub Date : 2020-04-28 DOI: 10.1002/mds3.10088

Jibril Shittu, Maryam Sadeghilaridjani, Mayur Pole, Aditya Ayyagari, Sundeep Mukherjee

引用次数: 4

A novel non-invasive wearable sensor for intraocular pressure measurement 一种新型无创可穿戴式眼压测量传感器

Medical devices & sensors Pub Date : 2020-04-22 DOI: 10.1002/mds3.10086

Angelica Campigotto, Yongjun Lai

引用次数: 10

Effect of nanoparticles on surface characteristics of dental nanocomposite 纳米颗粒对牙用纳米复合材料表面特性的影响

Medical devices & sensors Pub Date : 2020-04-20 DOI: 10.1002/mds3.10081

Sepehr Salari, Sara Dadkan, Mehrdad Khakbiz, Mohammad Atai

引用次数: 4

Expanded normative data for the balance tracking system modified clinical test of sensory integration and balance protocol 平衡跟踪系统改良版感觉统合与平衡临床测试方案的扩展标准数据

Medical devices & sensors Pub Date : 2020-04-20 DOI: 10.1002/mds3.10084

D. Goble, Elise C. Brown, C. Marks, Harsimran S. Baweja

{"title":"Expanded normative data for the balance tracking system modified clinical test of sensory integration and balance protocol","authors":"D. Goble, Elise C. Brown, C. Marks, Harsimran S. Baweja","doi":"10.1002/mds3.10084","DOIUrl":"https://doi.org/10.1002/mds3.10084","url":null,"abstract":"The modified Clinical Test of Sensory Integration and Balance (mCTSIB) is a popular protocol used to assess key sources of sensory feedback utilized during upright standing. The present study aimed to expand the age range of a previous normative sample of only young adult mCTSIB reference data collected using the Balance Tracking System (BTrackS). In total, 1,276 adults between ages 20 and 59 years old completed the BTrackS mCTSIB protocol in this study. The protocol consisted of four, 20-s trials that systematically manipulated the relative contributions of vision, proprioception and vestibular sensory systems. Total Center of Pressure Path Length results showed that females generally outperformed males in all age groups and sensory conditions. Both sexes showed reduced balance with age that started at age 50–59 years in Standard and Proprioception conditions. In the Vestibular condition, both sexes had reduced balance starting at age 30–39 years. In contrast, the pattern of reduction was different between females and males in the Vision condition. In this case, females showed a decline in balance at age 30–39 years compared to 40–49 years in males. These results provide important information demonstrating sensory feedback processing for balance can decline at differential rates based on age and sex characteristics. Percentile ranking look-up tables were also calculated as a practical tool for researchers and clinicians who regularly perform mCTSIB testing.","PeriodicalId":87324,"journal":{"name":"Medical devices & sensors","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141211065","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: 4

Current view and prospect: Implantable pressure sensors for health and surgical care 当前观点和前景：用于健康和外科护理的植入式压力传感器

Medical devices & sensors Pub Date : 2020-04-09 DOI: 10.1002/mds3.10068

Yazan Honjol, V. Rajkumar, C. Parent-Harvey, Kaviyanka Selvasandran, S. Kordlouie, Marianne Comeau-Gauthier, Edward J. Harvey, G. Merle

引用次数: 9