Journal of Medical Engineering and Technology最新文献_第9页

Repositioning mattress: how a lateral tilt position reshapes the prevention of pressure ulcers in bedridden patients. 重新定位床垫:如何一个侧向倾斜的位置重塑预防压疮卧床病人。

Journal of Medical Engineering and Technology Pub Date : 2022-11-01 Epub Date: 2022-07-08 DOI: 10.1080/03091902.2022.2094007

Jinpitcha Mamom, Hanvedes Daovisan

{"title":"Repositioning mattress: how a lateral tilt position reshapes the prevention of pressure ulcers in bedridden patients.","authors":"Jinpitcha Mamom, Hanvedes Daovisan","doi":"10.1080/03091902.2022.2094007","DOIUrl":"https://doi.org/10.1080/03091902.2022.2094007","url":null,"abstract":"Pressure ulcers have been part of tissue damage without effectiveness in medical, surgical, and intensive care units. This study aims to focus on developing lateral tilt positions for effective pressure ulcer relief for bedridden patients. A repositioning mattress was placed in the side-lying left lateral tilt position (15°, 30°, 45°), sheering (0.680, 1.323, 1.870), interface pressure (2.550, 2.290, 2.830), and placed at 1.5 m long piece of polyethylene rubber. The design strength was set at 6000 N and 2100 mm x 1105 mm (<math><msub><mrow><mi>σ</mi></mrow><mrow><mi>t</mi><mo>,</mo><mn>0</mn><mo>,</mo><mi>d</mi></mrow></msub></math> = 42, <math><msub><mrow><mi>σ</mi></mrow><mrow><mi>c</mi><mo>,</mo><mn>0</mn><mo>,</mo><mi>d</mi></mrow></msub></math> = 34). The design shows the greatest supine position at 30°, 1.323, 2.290, pressure load (<math><mo>Δ</mo><msub><mrow><mi>p</mi></mrow><mrow><mn>0</mn></mrow></msub></math> = 1.125 (1820) <math><mo>≈</mo></math> 2050 psi, <math><mo>Δ</mo><msub><mrow><mi>p</mi></mrow><mrow><mn>3000</mn></mrow></msub></math> = 1.125 (620) <math><mo>≈</mo></math> 700 psi), tensile stress (<math><msub><mrow><mi>σ</mi></mrow><mrow><mi>t</mi><mo>,</mo><mn>0</mn><mo>,</mo><mi>d</mi></mrow></msub></math> (MPa) = 42), compressive stress (<math><msub><mrow><mi>σ</mi></mrow><mrow><mi>c</mi><mo>,</mo><mn>0</mn><mo>,</mo><mi>d</mi></mrow></msub></math> (MPa) = 34), and FOS (<math><msub><mrow><mi>σ</mi></mrow><mrow><mi>t</mi><mo>,</mo><mn>0</mn><mo>,</mo><mi>d</mi></mrow></msub></math> = 42, <math><msub><mrow><mi>σ</mi></mrow><mrow><mi>c</mi><mo>,</mo><mn>0</mn><mo>,</mo><mi>d</mi></mrow></msub></math> = 34). The factor of safety illustrated that the 30° lateral tilt position is more consistent in repositioning for pressure ulcer prevention compared to the supine-to-tilt region. Further, an application of repositioning mattresses was developed to test in bedridden patients with tissue ulcers in nursing homes.","PeriodicalId":39637,"journal":{"name":"Journal of Medical Engineering and Technology","volume":" ","pages":"658-669"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40595300","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

Parallel assistive robotic system for knee rehabilitation: kinematic and dynamic modeling validation. 膝关节康复的平行辅助机器人系统:运动学和动力学建模验证。

Journal of Medical Engineering and Technology Pub Date : 2022-11-01 Epub Date: 2022-07-08 DOI: 10.1080/03091902.2022.2081880

Andrés Guatibonza, Leonardo Solaque, Alexandra Velasco

{"title":"Parallel assistive robotic system for knee rehabilitation: kinematic and dynamic modeling validation.","authors":"Andrés Guatibonza, Leonardo Solaque, Alexandra Velasco","doi":"10.1080/03091902.2022.2081880","DOIUrl":"https://doi.org/10.1080/03091902.2022.2081880","url":null,"abstract":"The knee joint is frequently exposed to injuries in people of all ages. In some cases, physical therapy is prescribed to recover the strength and mobility of a patient. The robotic assistance devices are gaining community attention and aim to improve the quality of life of people. In this work, we present the kinematic and dynamic modelling of a five-bar-linkage assistive device for knee rehabilitation according to anthropometric data from Latin-American population. We obtain a dynamic model of the proposed rehabilitation system and compare the knee trajectories with obtained using the assistive system to evaluate appropriate control strategies in the future. For this purpose, we present the kinematic formulation of the device, and then we derive the dynamics using two approaches to validate the model; we obtain the motion equation using the Lagrange approach and an algebraic method that simplifies modelling. Both approaches yield a unique model, which is validated either in simulation and by experimental trials, showing the functionality of the system and the validity of the models when performing rehabilitation routines.","PeriodicalId":39637,"journal":{"name":"Journal of Medical Engineering and Technology","volume":" ","pages":"637-647"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40493600","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: 0

Semi-automatic retractable handrail utilising opening/closing movement of sliding door supporting elderly people to walk independently: proposed and satisfied design specifications for elderly people. 利用推拉门开合运动的半自动伸缩扶手，支持老年人独立行走:提出并满足老年人的设计规范。

Journal of Medical Engineering and Technology Pub Date : 2022-11-01 Epub Date: 2022-07-08 DOI: 10.1080/03091902.2022.2094009

Kinjirou Saitou, Noaki Noda, Yoshikazu Sano, Yasushi Takase, Shuqiong Li, Hiroyuki Tanaka, Yoshitaka Kubo

引用次数: 0

Development of a new HotBalloon^TM ablation catheter equipped with a balloon surface temperature monitoring sensor for pulmonary vein isolation. 新型HotBalloonTM消融管的研制，该消融管装有球囊表面温度监测传感器，用于肺静脉隔离。

Journal of Medical Engineering and Technology Pub Date : 2022-11-01 Epub Date: 2022-07-19 DOI: 10.1080/03091902.2022.2094010

Kota Tsukamoto, Akio Tanahashi, Hiroyuki Harada, Motoki Takaoka, Hiroshi Sohara

{"title":"Development of a new HotBalloonTM ablation catheter equipped with a balloon surface temperature monitoring sensor for pulmonary vein isolation.","authors":"Kota Tsukamoto, Akio Tanahashi, Hiroyuki Harada, Motoki Takaoka, Hiroshi Sohara","doi":"10.1080/03091902.2022.2094010","DOIUrl":"https://doi.org/10.1080/03091902.2022.2094010","url":null,"abstract":"The balloon surface temperature (BST) should be monitored to ensure the success of the ablation procedure using the HotBalloonTM ablation catheter (HBC) in clinical settings. Therefore, we sought to develop a new HBC equipped with a surface temperature monitoring sensor. The BST was evaluated using a pseudo-tissue model and a thermocouple to imitate catheter insertion into the pulmonary vein. Thermo-fluid analysis with computer-aided engineering (CAE) was performed to analyse the temperature distribution in the catheter and the balloon. The CAE analysis reproduced the results from a pseudo-tissue model experiment and demonstrated that some fluid zones inside the catheter shaft had a nearly identical temperature as the BST during the liquid suction period. The pseudo-tissue model experiment confirmed that the temperature was almost the same between the balloon surface and the position of 5 mm inside the catheter shaft from the proximal end of the balloon. A thermocouple placed at 5 mm or 25 mm from the proximal end of the balloon within the catheter shaft showed an equivalent temperature result. This 5-25-mm distance is acceptable to set the BST monitoring sensor inside the catheter shaft, since the sensor can help accurately estimate the BST.","PeriodicalId":39637,"journal":{"name":"Journal of Medical Engineering and Technology","volume":" ","pages":"687-692"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40519096","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: 0

Cuff-less and continuous blood pressure measurement based on pulse transit time from carotid and toe photoplethysmograms. 基于颈动脉和脚趾光容积图脉搏传递时间的无袖带连续血压测量。

Journal of Medical Engineering and Technology Pub Date : 2022-10-01 Epub Date: 2022-07-08 DOI: 10.1080/03091902.2022.2077998

Aws Zuhair Sameen, Rosmina Jaafar, Edmond Zahedi, Gan Kok Beng

{"title":"Cuff-less and continuous blood pressure measurement based on pulse transit time from carotid and toe photoplethysmograms.","authors":"Aws Zuhair Sameen, Rosmina Jaafar, Edmond Zahedi, Gan Kok Beng","doi":"10.1080/03091902.2022.2077998","DOIUrl":"https://doi.org/10.1080/03091902.2022.2077998","url":null,"abstract":"Blood pressure (BP) is a vital health parameter that varies throughout the day. As a single reading of high BP may not indicate hypertension, continuous monitoring of BP is usually recommended by medical doctors to confirm the diagnosis of hypertension. In the last few decades, researchers have investigated cuff-less and continuous BP measurements based on pulse transit time (PTT). The main purpose of this research is to develop an autoregressive (ARX) system identification (SI)-based PTT calculation model using two PPG signals acquired from carotid and toe. The signals were recorded from 65 subjects with an age range between 20 and 60 years. The results of the study have been validated in two stages. The first validation comprised the estimated BP from PTT using SI compared to the measured BP using the cuff-based method for all subjects. The results of the estimated BP using the proposed method compared to the measured BP obtained using the standard BP cuff measurement method are highly correlated to both systolic blood pressure (R2 = 0.8132) and diastolic blood pressure (R2 = 0.8357). The second validation consisted of comparing PTT values using system identification to the results of the PTT derived from the ECG-PPG method. The results showed that both methods are highly correlated (R2 = 0.7808), and there is no significant difference between them (p < 0.05) with a slightly better PTT estimation related to DBP in the proposed method. Our results have proven that the PTT obtained from the carotid PPG and toe PPG using the system identification approach yielded SBP and DBP estimations that are consistent with the values of the conventional BP cuff method. The newly proposed method has the advantage of being cuff-less and able to provide continuous BP measurements.","PeriodicalId":39637,"journal":{"name":"Journal of Medical Engineering and Technology","volume":" ","pages":"567-589"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40493598","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: 1

News and product update 新闻和产品更新

Journal of Medical Engineering and Technology Pub Date : 2022-10-01 DOI: 10.1080/03091902.2022.2095739

引用次数: 0

A wearable heart rate monitoring system based on over-ear headphones. 一种基于耳罩式耳机的可穿戴式心率监测系统。

Journal of Medical Engineering and Technology Pub Date : 2022-10-01 Epub Date: 2022-07-19 DOI: 10.1080/03091902.2022.2080884

Andrii Voropai, Volodymyr Sarana

引用次数: 0

Overcoming challenges to develop technology for child health. 克服挑战，开发促进儿童健康的技术。

Journal of Medical Engineering and Technology Pub Date : 2022-08-01 Epub Date: 2022-06-22 DOI: 10.1080/03091902.2022.2089254

Nathaniel Mills, Philippa Howsley, Clare M Bartlett, Linda Olubajo, Paul Dimitri

{"title":"Overcoming challenges to develop technology for child health.","authors":"Nathaniel Mills, Philippa Howsley, Clare M Bartlett, Linda Olubajo, Paul Dimitri","doi":"10.1080/03091902.2022.2089254","DOIUrl":"https://doi.org/10.1080/03091902.2022.2089254","url":null,"abstract":"Millions of children and young people (CYP) in the UK are affected by chronic or rare health conditions. Rapid advances in science and technology have resulted in CYP with chronic and rare conditions now surviving well into adulthood. New technologies have the potential to improve short- and long-term health outcomes for CYP with health conditions, prevent adult onset disease and complications, and reduce the burden on health services. There is thus a need for targeted investment and appropriate governance in child health technology development to address the specific needs of this population; health technology must be versatile to meet the social, anatomical, cognitive, psychological, and physiological changes inherent to childhood development. Despite the growing demand for health technology for a sizeable global population, industry still wrongly perceives the market size is relatively small, and health technology development is often localised and fragmented with limited scope for spread and adoption. These challenges can be overcome by validating and prioritising unmet needs, involving CYP and their families throughout the innovation pathway, facilitating effective partnerships with key stakeholders, and utilising national and international infrastructure and networks. This paper outlines five innovations supported by NIHR Children and Young People MedTech Co-operative that illustrate how common challenges in child health technology development can be overcome. It is essential that we continue to address such challenges and invest in the health and wellbeing of CYP.","PeriodicalId":39637,"journal":{"name":"Journal of Medical Engineering and Technology","volume":" ","pages":"547-557"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40177169","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

User involvement throughout development of technology to support diabetes foot care: a case illustration of the devices for dignity PPIE model. 支持糖尿病足部护理的整个技术开发过程中的用户参与:尊严PPIE模型装置的一个案例说明。

Journal of Medical Engineering and Technology Pub Date : 2022-08-01 Epub Date: 2022-09-05 DOI: 10.1080/03091902.2022.2089259

L Sproson, A Dean, L Keogh, J Campey, R Gandhi, S Caunt, D Selvarajah

引用次数: 1

Identifying individual enablers and barriers to the use of digital technology for the self-management of long-term conditions by older adults. 确定老年人使用数字技术进行长期疾病自我管理的个人促进因素和障碍。

Journal of Medical Engineering and Technology Pub Date : 2022-08-01 Epub Date: 2022-06-24 DOI: 10.1080/03091902.2022.2089249

Louise Moody, Esmé Wood, Abigail Needham, Andrew Booth, Angel Jimenez-Aranda, Wendy Tindale

{"title":"Identifying individual enablers and barriers to the use of digital technology for the self-management of long-term conditions by older adults.","authors":"Louise Moody, Esmé Wood, Abigail Needham, Andrew Booth, Angel Jimenez-Aranda, Wendy Tindale","doi":"10.1080/03091902.2022.2089249","DOIUrl":"https://doi.org/10.1080/03091902.2022.2089249","url":null,"abstract":"Evidence suggests that much of the digital technology available and provided to older adults to enable self-management of long-term conditions is under-utilised. This research focuses on three conditions prevalent amongst older adults: diabetes, dementia and chronic kidney disease and explores the individual enablers and barriers to the use of digital self-management technology. The paper reports findings from a series of three systematic reviews of qualitative research (qualitative evidence syntheses). These reviews informed the design of a Delphi study. The first round of the Delphi involving 15 expert interviews is reported. The findings highlight common themes across the three conditions: how technology is used; barriers to use; assessing individual needs when selecting technology; support requirements; multi-functional self-management technologies; trust, privacy and data sharing; achieving accessible and aspirational design. Some emerging recommendations have been suggested to guide the design, and provision of technology to older adults. These will extended and refined through subsequent rounds of the Delphi method.","PeriodicalId":39637,"journal":{"name":"Journal of Medical Engineering and Technology","volume":" ","pages":"448-461"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40395484","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