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[Development and Challenges of Additive Manufactured Customized Implant]. [增材制造定制植入物的发展与挑战]。
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-05-30 DOI: 10.12455/j.issn.1671-7104.230681
Changning Sun, Zijie Meng, Ling Wang, Jiankang He, Qin Lian, Lin Gao, Xiao Li, Mao Mao, Hui Zhu, Dichen Li
{"title":"[Development and Challenges of Additive Manufactured Customized Implant].","authors":"Changning Sun, Zijie Meng, Ling Wang, Jiankang He, Qin Lian, Lin Gao, Xiao Li, Mao Mao, Hui Zhu, Dichen Li","doi":"10.12455/j.issn.1671-7104.230681","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230681","url":null,"abstract":"<p><p>Additive manufacturing (3D printing) technology aligns with the direction of precision and customization in future medicine, presenting a significant opportunity for innovative development in high-end medical devices. Currently, research and industrialization of 3D printed medical devices mainly focus on nondegradable implants and degradable implants. Primary areas including metallic orthopaedic implants, polyether-ether-ketone (PEEK) bone implants, and biodegradable implants have been developed for clinical and industrial application. Recent research achievements in these areas are reviewed, with a discussion on the additive manufacturing technologies and applications for customized implants. Challenges faced by different types of implants are analyzed from technological, application, and regulatory perspectives. Furthermore, prospects and suggestions for future development are outlined.</p>","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":"48 3","pages":"237-244"},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307370","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
[Application of Digital Galvanometer Scanner System for CO2 Fractional Laser Safety Improvement]. [数字振镜扫描系统在二氧化碳点阵激光安全改进中的应用]。
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-05-30 DOI: 10.12455/j.issn.1671-7104.230568
Ming Li, Wei Feng, Songhua Liu
{"title":"[Application of Digital Galvanometer Scanner System for CO<sub>2</sub> Fractional Laser Safety Improvement].","authors":"Ming Li, Wei Feng, Songhua Liu","doi":"10.12455/j.issn.1671-7104.230568","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230568","url":null,"abstract":"<p><p>An analog PID controller-based galvanometer scanner is widely used by fractional laser medical equipment (FLME) to scan lasers across tissue surfaces, achieving the desired therapeutic effect. This type of driver, primarily composed of passive components and operational amplifiers, can only accept commands from the central controller of the FLME, with a simple hardware circuit-based fault diagnosis; thus, the safety of the FLME is compromised. To address these issues, the failure mechanisms of galvanometers and their impact on the safety of FLME are thoroughly analyzed first. Then, an adaptive limit protection method, a coil open circuit fault diagnosis, a communication timeout protection based on two handshakes, and a galvanometer control timeout protection are proposed, respectively, based on a digital driver platform, to supplement the deficiencies in the original fault diagnosis and protection system. This ensures the safety of the FLME. Finally, the effectiveness of the proposed strategies is validated through experiments.</p>","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":"48 3","pages":"323-329"},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307395","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
[Application of NGO-BP Neural Network in Battery Life Prediction of Portable Medical Devices]. [非政府组织-BP 神经网络在便携式医疗设备电池寿命预测中的应用]。
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-05-30 DOI: 10.12455/j.issn.1671-7104.230529
Daining An, Lei Shi, Yan Xu
{"title":"[Application of NGO-BP Neural Network in Battery Life Prediction of Portable Medical Devices].","authors":"Daining An, Lei Shi, Yan Xu","doi":"10.12455/j.issn.1671-7104.230529","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230529","url":null,"abstract":"<p><p>The development of portable medical devices cannot be separated from safe and efficient batteries. Accurately predicting the remaining life of batteries can greatly improve the reliability of batteries, which is of great significance for portable medical devices. This article focuses on the high dependence of the BP neural network algorithm on initial weights and thresholds, as well as its tendency to fall into local minima. The Northern Goshawk Optimization (NGO) algorithm is used to optimize the BP neural network and to test the 18650 lithium battery data under different ambient temperatures (4, 24, 43°C) typical of medical equipment. The experimental results show that the NGO algorithm can significantly improve the prediction accuracy of the BP neural network under various temperature conditions, achieving accurate and effective prediction of the remaining battery life.</p>","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":"48 3","pages":"293-297"},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307396","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
[Real-time Detection Method for Motion Artifact of Photoplethysmography Signals Based on Decision Trees]. [基于决策树的运动伪影实时检测方法]。
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-05-30 DOI: 10.12455/j.issn.1671-7104.230552
Linqi Hu, Yulin Zhang, Yongxin Chou, Haiping Yang, Xiao He
{"title":"[Real-time Detection Method for Motion Artifact of Photoplethysmography Signals Based on Decision Trees].","authors":"Linqi Hu, Yulin Zhang, Yongxin Chou, Haiping Yang, Xiao He","doi":"10.12455/j.issn.1671-7104.230552","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230552","url":null,"abstract":"<p><p>PPG (photoplethysmography) holds significant application value in wearable and intelligent health devices. However, during the acquisition process, PPG signals can generate motion artifacts due to inevitable coupling motion, which diminishes signal quality. In response to the challenge of real-time detection of motion artifacts in PPG signals, this study analyzed the generation and significant features of PPG signal interference. Seven features were extracted from the pulse interval data, and those exhibiting notable changes were filtered using the dual-sample Kolmogorov-Smirnov test. The real-time detection of motion artifacts in PPG signals was ultimately based on decision trees. In the experimental phase, PPG signal data from 20 college students were collected to formulate the experimental dataset. The experimental results demonstrate that the proposed method achieves an average accuracy of (94.07±1.14)%, outperforming commonly used motion artifact detection algorithms in terms of accuracy and real-time performance.</p>","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":"48 3","pages":"285-292"},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307376","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
[Analysis of the Current Application Status for Clinical and Home Monitoring of Obstructive Sleep Apnea-Hypopnea Syndrome]. [阻塞性睡眠呼吸暂停-低通气综合征临床和家庭监测应用现状分析]。
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-05-30 DOI: 10.12455/j.issn.1671-7104.230605
Bao Zhou, Xuantao Li, Jingjian Zhang, Qin Jia
{"title":"[Analysis of the Current Application Status for Clinical and Home Monitoring of Obstructive Sleep Apnea-Hypopnea Syndrome].","authors":"Bao Zhou, Xuantao Li, Jingjian Zhang, Qin Jia","doi":"10.12455/j.issn.1671-7104.230605","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230605","url":null,"abstract":"<p><p>The study provides an overview of the development status of sleep disorder monitoring devices. Currently, polysomnography (PSG) is the gold standard for diagnosing sleep disorders, necessitating multiple leads and requiring overnight monitoring in a sleep laboratory, which can be cumbersome for patients. Nevertheless, the performance of PSG has been enhanced through research on sleep disorder monitoring and sleep staging optimization. An alternative device is the home sleep apnea testing (HSAT), which enables patients to monitor their sleep at home. However, HSAT does not attain the same level of accuracy in sleep staging as PSG, rendering it inappropriate for screening individuals with asymptomatic or mild obstructive sleep apnea-hypopnea syndrome (OSAHS). The study suggests that establishing a Chinese sleep staging database and developing home sleep disorder monitoring devices that can serve as alternatives to PSG will represent a future development direction.</p>","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":"48 3","pages":"306-311"},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307394","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
[Research on Characterization and Biocompatibility of 3D Printed Ti-6Al-4V Pelvic Prosthesis]. [三维打印 Ti-6Al-4V 骨盆假体的特性和生物相容性研究]。
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-05-30 DOI: 10.12455/j.issn.1671-7104.230611
Yuchen Cai, Jiale Guo, Bufang Fu
{"title":"[Research on Characterization and Biocompatibility of 3D Printed Ti-6Al-4V Pelvic Prosthesis].","authors":"Yuchen Cai, Jiale Guo, Bufang Fu","doi":"10.12455/j.issn.1671-7104.230611","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230611","url":null,"abstract":"<p><p>The treatment of bone defects caused by fractures or bone tissue lesions has always been a difficult problem in the field of orthopedics. Implantation of high-performance titanium alloy prosthesis is an effective method to treat bone defects. 3D printing technology can produce low-modulus titanium alloy implants with porous structures, providing a better solution to the above problems. This technology is convenient to design and has a huge advantage in making orthopedic implants. The article used electron beam melting in 3D printing technology to create two samples of Ti-6Al-4V prosthesis, including solid structural pelvic prosthesis and porous structural pelvic prosthesis. The mechanical properties of the prosthesis showed that the yield and tensile strengths of the rod tensile specimen were 894 MPa and 956 MPa, respectively, and the compressive modulus and compressive strength of the porous pelvic prosthesis were 55 GPa and 65.2 MPa, respectively. The results of the L929 cytotoxicity assay and the MC3T3-E1 cell adhesion assay demonstrated good biocompatibility of the prosthetic samples. New Zealand white rabbits were used to prepare the femoral joint cavity defect models and two pelvic prostheses were implanted. A microscopic CT scan 4 weeks after implantation showed that the bone defect caused by the drill had healed and that the porous structure of the pelvic prosthesis formed a new trabecular structure within the hole. In conclusion, the 3D printed Ti-6Al-4V pelvic prosthesis has excellent mechanical properties, biocompatibility, and the ability to promote new bone growth.</p>","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":"48 3","pages":"257-263"},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307377","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
[Wireless Pulse Wave Monitoring System Based on Reflective Flexible Probe and AFE4490]. [基于反射式柔性探头和 AFE4490 的无线脉搏波监测系统]。
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-05-30 DOI: 10.12455/j.issn.1671-7104.230368
Yan Hang, Lin Huang, Yanan Liu, Haijun Wei, Jilun Ye, Xu Zhang, Chunsheng Liu, Fan Wang
{"title":"[Wireless Pulse Wave Monitoring System Based on Reflective Flexible Probe and AFE4490].","authors":"Yan Hang, Lin Huang, Yanan Liu, Haijun Wei, Jilun Ye, Xu Zhang, Chunsheng Liu, Fan Wang","doi":"10.12455/j.issn.1671-7104.230368","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230368","url":null,"abstract":"<p><p>Pulse rate and blood oxygen levels are crucial physiological parameters that reflect physiological and pathological information within the human body. The system designs a wireless pulse wave monitoring system utilizing a flexible reflective probe and the AFE4490, which is capable of monitoring pulse wave and blood oxygen levels on the human forehead. The system is predominantly based on a reflective flexible probe, the AFE4490, a power supply module, a control microcontroller unit (MCU), and a Wi-Fi module. Post-processing by a slave computer, the collected pulse wave data is wirelessly transmitted to a smartphone. The real-time pulse waveform, pulse rate, and blood oxygen levels are displayed on an application. Following relevant tests and verifications, the system can accurately detect pulse wave signals, meet the requirements for wearable technology, and possesses significant market application potential.</p>","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":"48 3","pages":"330-334"},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307383","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
[Research Progress of 3D-Printed Polyetheretherketone in Implantable Medical Devices]. [三维打印聚醚醚酮在植入式医疗器械中的研究进展]。
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-05-30 DOI: 10.12455/j.issn.1671-7104.230488
Shangda Zhang
{"title":"[Research Progress of 3D-Printed Polyetheretherketone in Implantable Medical Devices].","authors":"Shangda Zhang","doi":"10.12455/j.issn.1671-7104.230488","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230488","url":null,"abstract":"<p><p>Polyetheretherketone (PEEK) has emerged as a thermoplastic material of choice in the realm of implantable medical devices, owing to its high biocompatibility and exceptional mechanical strength. Despite its promise for custom-made medical devices, 3D-printed PEEK in orthopedics, trauma, and spinal implants has not yet achieved widespread application. This study outlines the properties of PEEK, 3D-printed PEEK-based composites, and their utilization in implantable medical devices, thereby fostering the development and regulation of next-generation medical devices.</p>","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":"48 3","pages":"251-256"},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307379","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
[Several Aspects Worthy of Attention in the Pre-research of Medical Device Standards]. [医疗器械标准前期研究中值得关注的几个方面]。
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-05-30 DOI: 10.12455/j.issn.1671-7104.230333
Yuanyuan Lyu, Liyuan Lu, Li Yi, Qian Dong, Xiaodan Du, Jinglong Tang
{"title":"[Several Aspects Worthy of Attention in the Pre-research of Medical Device Standards].","authors":"Yuanyuan Lyu, Liyuan Lu, Li Yi, Qian Dong, Xiaodan Du, Jinglong Tang","doi":"10.12455/j.issn.1671-7104.230333","DOIUrl":"10.12455/j.issn.1671-7104.230333","url":null,"abstract":"<p><p>The pre-research of medical device standards is of great significance for the enactment and amendment of standards. This study discusses four aspects and explores how to promote more scientific and reasonable pre-research. Based on the pre-research practice of medical device standards project, this study puts forward relevant work ideas and suggestions.</p>","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":"48 3","pages":"352-354"},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307380","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
[Thoughts on High-Quality Innovation and Development of in Vitro Diagnostic Reagents Industry in Shanghai]. [对上海体外诊断试剂产业高质量创新发展的思考]。
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-05-30 DOI: 10.12455/j.issn.1671-7104.230465
Shuang Liang, Guomei Sun
{"title":"[Thoughts on High-Quality Innovation and Development of <i>in Vitro</i> Diagnostic Reagents Industry in Shanghai].","authors":"Shuang Liang, Guomei Sun","doi":"10.12455/j.issn.1671-7104.230465","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230465","url":null,"abstract":"<p><p>As an important part of the Big Health Industry, <i>in vitro</i> diagnostic(IVD) reagents play a vital role in the prevention, diagnosis and treatment of diseases. In recent years, especially after the novel coronavirus infection, IVD industry has developed rapidly in China, but it still cannot meet the needs of clinical use. By conducting desk research, expert interview, manufacturer survey and hospital survey, this study analyzed the development status of IVD industry in Shanghai, summarized the problems encountered in the high-quality development from the aspects of raw materials, innovation ability, and clinical trials, etc., and proposed recommendations for promoting the high-quality innovation and development of IVD industry in Shanghai.</p>","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":"48 3","pages":"339-342"},"PeriodicalIF":0.0,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141307382","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
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