2023 Design of Medical Devices Conference最新文献_第4页

ROBOTIC ORTHOSIS BASED ON BEND SENSORS FOR OCCUPATIONAL MUSCULOSKELETAL DISORDER PREVENTION 基于弯曲传感器的机器人矫形器预防职业性肌肉骨骼疾病

2023 Design of Medical Devices Conference Pub Date : 2023-04-17 DOI: 10.1115/dmd2023-1429

Jinsai Cheng, Wenbing Zhao, Tao Shen

引用次数: 0

AI BASED GLAND DETECTION IN BARRETT’S ESOPHAGUS USING OPTICAL COHERENCE TOMOGRAPHY FOR CAPSULE ENDOSCOPY DEVICE 应用光学相干断层扫描胶囊内窥镜装置检测barrett食管腺体

2023 Design of Medical Devices Conference Pub Date : 2023-04-17 DOI: 10.1115/dmd2023-1691

Jieun Lee, Vaishnavi K. Modi, Renisha Redij, S. Gadam, K. Gopalakrishnan, Anjali Rajagopal, C. Leggett, S. P. Arunachalam

{"title":"AI BASED GLAND DETECTION IN BARRETT’S ESOPHAGUS USING OPTICAL COHERENCE TOMOGRAPHY FOR CAPSULE ENDOSCOPY DEVICE","authors":"Jieun Lee, Vaishnavi K. Modi, Renisha Redij, S. Gadam, K. Gopalakrishnan, Anjali Rajagopal, C. Leggett, S. P. Arunachalam","doi":"10.1115/dmd2023-1691","DOIUrl":"https://doi.org/10.1115/dmd2023-1691","url":null,"abstract":"\u0000 Optical coherence tomography (OCT) is an advanced imaging modality to detect Barrett’s esophagus (BE) dysplasia, providing widefield, cross-sectional imaging and microscopic resolution. BE dysplasia is characterized under OCT by the presence and number of glandular structures with atypical morphology. Accurate detection and interpretation of BE glands under OCT is essential to detect dysplastic lesions. Object Detection using deep learning has the potential to identify glands from OCT images. We developed a YOLO model to identify the presence of glands in BE tissue. The YOLOv4 object detector was trained on a custom BE dataset of 30 patients with confirmed BE who underwent OCT imaging, of which 222 OCT images included at least one gland. Our model identified glands with a high average precision of 88.79% on the test dataset. We showed that the developed model is robust to rotation, brightness, and blur in images. We have implemented an object detection model to identify glands from OCT images with promising results accurately. This model has the potential to improve the diagnosis and surveillance of BE by eliminating human error and missed dysplastic lesions adaptable for capsule endoscopy applications.","PeriodicalId":325836,"journal":{"name":"2023 Design of Medical Devices Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128915346","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

CAPAPP: SMARTPHONE-BASED CAPILLARY REFILL INDEX ASSESSMENT IN HEALTHY CHILDREN Capapp:基于智能手机的健康儿童毛细血管再充盈指数评估

2023 Design of Medical Devices Conference Pub Date : 2023-04-17 DOI: 10.1115/dmd2023-6655

Jonathan Strutt, Girish Narayanswamy, Chunjong Park, Devesh Sarda, Sixuan Wu, Matthew J. Thompson, Lauren Harvey, Rachel Hedstrom, Amy Kodet, Shwetak N. Patel, A. Mariakakis

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TOWARDS ELECTRICALLY ACTIVATING SMA-BASED COMPRESSION KNITS 朝着电激活基于sma的压缩针织的方向发展

2023 Design of Medical Devices Conference Pub Date : 2023-04-17 DOI: 10.1115/dmd2023-3310

Alireza Golgouneh, R. Pettys-Baker, Lucy E. Dunne, B. Holschuh

{"title":"TOWARDS ELECTRICALLY ACTIVATING SMA-BASED COMPRESSION KNITS","authors":"Alireza Golgouneh, R. Pettys-Baker, Lucy E. Dunne, B. Holschuh","doi":"10.1115/dmd2023-3310","DOIUrl":"https://doi.org/10.1115/dmd2023-3310","url":null,"abstract":"\u0000 Compression devices are widely used in fields such as astronautics, cosmetics, and medical therapy for treatment of various diseases such as Postural orthostatic tachycardia syndrome (POTS) and Orthostatic Hypotension (OH). Unlike traditional compression devices that apply static pressure on the body, there have been some efforts to integrate smart materials such as shape memory alloys (SMAs) to make compression garments active and controllable. SMA-based compression systems can be made in tourniquet (band) and knit (larger area) forms. SMA Knits are typically activated through direct heating approaches that may not be accessible in real-life applications. Unlike other forms of SMA actuators, due to the complexity of SMA wire interconnections in the knit, Joule heating has not been investigated yet. Hence, this paper presents an experimental protocol to electrically activate the SMA-knits through Joule heating. The designed protocol, include measurement of generated force, electrical properties, and temperature in a displacement control condition. The results of this study indicate that connecting the power leads to the middle of a knitted SMA sample along the course direction, can contribute to a better wide-reaching electrical pathway, and subsequently achieves better force generation through Joule heating.","PeriodicalId":325836,"journal":{"name":"2023 Design of Medical Devices Conference","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128338131","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

EXPEDITING ESOPHAGEAL MANOMETRY THROUGH CREATION OF A SLEEVE FOR A NASOGASTRIC TUBE 通过制造鼻胃管套筒加速食管测压

2023 Design of Medical Devices Conference Pub Date : 2023-04-17 DOI: 10.1115/dmd2023-0629

H. Mansfield, Jason Shenoi, Sindhura Sridhar

{"title":"EXPEDITING ESOPHAGEAL MANOMETRY THROUGH CREATION OF A SLEEVE FOR A NASOGASTRIC TUBE","authors":"H. Mansfield, Jason Shenoi, Sindhura Sridhar","doi":"10.1115/dmd2023-0629","DOIUrl":"https://doi.org/10.1115/dmd2023-0629","url":null,"abstract":"\u0000 Acute Respiratory Distress Syndrome (ARDS) is an acute inflammatory condition that causes impaired oxygenation and is almost always treated with mechanical ventilation. Positive End-Expiratory Pressure (PEEP) is an extrinsic pressure applied in ventilation to maintain alveolar opening. Esophageal manometry is a useful tool in titrating PEEP to ensure adequate ventilation is being provided in cases of increased chest wall pressure. However, few pulmonologists or critical care specialists utilize esophageal manometry routinely because of the required additional procedure, sparse training opportunities, and esoteric calculations required to perform the procedure and evaluate the results. We have designed, prototyped, and tested a device to simplify and reduce the time necessary to perform esophageal balloon catheterization. This device contains a balloon sleeve to be placed over a standard nasogastric tube which is capable of measuring the esophageal pressure while ventilation is being provided. Based on the esophageal pressures, a web based app created in tandem with the device calculates the desired PEEP for the ventilator settings to ensure adequate oxygenation of the patient. Statistical analysis demonstrated adequate similarities in trends compared to existing devices along with significance in pressure variability.","PeriodicalId":325836,"journal":{"name":"2023 Design of Medical Devices Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127787299","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

DESIGN OF BABY CUSHION FOR STROLLER USING FINITE ELEMENT SIMULATION 基于有限元仿真的婴儿车婴儿坐垫设计

2023 Design of Medical Devices Conference Pub Date : 2023-04-17 DOI: 10.1115/dmd2023-7123

Soon-Cheol Jung, Jaemin Kim, Youngho Lee, Hyeyeong Song, Y. Kang, J. Hong

引用次数: 0

ANALYSES OF THE DEVICE-TISSUE INTERFACES OF PREVIOUSLY IMPLANTED STENTS WITHIN PERFUSION-FIXED HUMAN HEARTS UTIILIZING MICRO COMPUTED TOMOGRAPHY 利用微计算机断层扫描分析灌注固定人类心脏内先前植入支架的设备-组织界面

2023 Design of Medical Devices Conference Pub Date : 2023-04-17 DOI: 10.1115/dmd2023-4061

A. DeVos, P. Iaizzo

{"title":"ANALYSES OF THE DEVICE-TISSUE INTERFACES OF PREVIOUSLY IMPLANTED STENTS WITHIN PERFUSION-FIXED HUMAN HEARTS UTIILIZING MICRO COMPUTED TOMOGRAPHY","authors":"A. DeVos, P. Iaizzo","doi":"10.1115/dmd2023-4061","DOIUrl":"https://doi.org/10.1115/dmd2023-4061","url":null,"abstract":"\u0000 Coronary artery disease can be caused by partial or total occlusions of the coronaries, leading to cardiac ischemia. Today, the percutaneous implantation of stents is the most common treatment to open such blockages and thus restore oxygen delivery to the myocardium. Subsequent stent calcification or restenosis may hinder the effectiveness of these stents over time. The Visible Heart® Laboratories have a collection of 30 perfusion-fixed human hearts that had a total of 35 such intervention prior to organ donation. Micro computed tomography (micro CT) can be used to study the device-tissue interfaces of stents implanted up to decades prior to recovery. These procedures were scanned with approximately 40-micron resolution. Computational models were generated such that calcification and restenosis could be visualized and quantified. Within this unique data-set, there was a wide variety of stent length, location, and volume of calcification present. Although 90% of the cases had varying degree of calcification present outside the stent only 11% showed any degree of restenosis. This is a unique research opportunity to micro CT scan 35 cases of therapeutically implanted stents in perfusion-fixed specimens. Extensive visualizations and analyses can be performed on generated computational 3D models, so to provide for better understanding of the variations within the device-tissue interfaces of therapeutically implanted stents.","PeriodicalId":325836,"journal":{"name":"2023 Design of Medical Devices Conference","volume":"269 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126831167","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

DESIGN OF FABRIC-REINFORCED POLYURETHANE COMPOSITES FOR AORTIC AND OTHER CARDIAC CONSTRUCTS 用于主动脉和其他心脏结构的纤维增强聚氨酯复合材料的设计

2023 Design of Medical Devices Conference Pub Date : 2023-04-17 DOI: 10.1115/dmd2023-1689

Charmaine Nieves, Sandra Edward, Mayura Kulkarni, Holly M. Golecki

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SYSTEMATIC 12-CORE TRANSPERINEAL PROSTATE BIOPSY WITH MINIMAL ACTIVE NEEDLE INSERTIONS IN A PATIENT PROSTATE-SIZED PHANTOM 系统的12核经会阴前列腺活检，在患者前列腺大小的幻影中使用最小的活动针插入

2023 Design of Medical Devices Conference Pub Date : 2023-04-17 DOI: 10.1115/dmd2023-3205

Blayton Padasdao, B. Konh

引用次数: 0

COUGH AUDIO SENTIMENT ANALYTICS FOR SOFTWARE AS A MEDICAL DEVICE APPLICATIONS 咳嗽音频情感分析软件作为一种医疗器械应用

2023 Design of Medical Devices Conference Pub Date : 2023-04-17 DOI: 10.1115/dmd2023-1316

S. Damani, Arshia K. Sethi, Bhavana Baraskar, K. Gopalakrishnan, Joshika Agarwal, H. Albitar, V. Ahluwalia, S. Donlinger, V. Iyer, S. P. Arunachalam

{"title":"COUGH AUDIO SENTIMENT ANALYTICS FOR SOFTWARE AS A MEDICAL DEVICE APPLICATIONS","authors":"S. Damani, Arshia K. Sethi, Bhavana Baraskar, K. Gopalakrishnan, Joshika Agarwal, H. Albitar, V. Ahluwalia, S. Donlinger, V. Iyer, S. P. Arunachalam","doi":"10.1115/dmd2023-1316","DOIUrl":"https://doi.org/10.1115/dmd2023-1316","url":null,"abstract":"\u0000 Chronic cough is not only one of the leading causes of seeking healthcare all over the world but also a huge emotional drain on the affected patient population. In this study, we used 24-hour cough recordings to analyze the intervening conversations for sentiment analyses to better diagnose, guide, and manage treatment in such patients. We surveyed a cough clinic and selected four subjects with active cough complaints using relevant ICD-10 codes. Subjects were given and instructed to wear a device to record cough for 24 hours and the recordings were collected at weeks 0, 4, 8, and 12 of the treatment. The collected data was preprocessed to eliminate sections with no data (sleep, silence) and the number of coughs was counted. Google search API calls were used to transcribe the audio files and NLTK’s VADER analyzer was used to classify sentiments on a scale of 0 to 1. Finally, average scores were calculated and plotted over a graph to interpret any trends. 12 weeks of cough treatment had varied results on the four subjects. We categorized the exhibited sentiments into negative, neutral, positive, and compound and noted that they also showed no general trends. Among these, the compound sentiment displayed the most erratic patterns, and the obtained results could not generate a steady trend. Further studies are required with a large cohort to collect data over a longer duration to accurately analyze the sentiments associated with chronic cough.","PeriodicalId":325836,"journal":{"name":"2023 Design of Medical Devices Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133816309","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