中国医疗器械杂志最新文献_第4页

[Research on Electromagnetic Compatibility Immunity Testing Methods for Proton Therapy System]. [质子治疗系统电磁兼容免疫测试方法研究]。

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-07-30 DOI: 10.12455/j.issn.1671-7104.230526

Weiwei Lu

{"title":"[Research on Electromagnetic Compatibility Immunity Testing Methods for Proton Therapy System].","authors":"Weiwei Lu","doi":"10.12455/j.issn.1671-7104.230526","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230526","url":null,"abstract":"The proton therapy system has significant clinical advantages over traditional tumor radiation treatment equipment and is also far more complex in terms of system architecture. However, due to the large size and complexity of these devices, electromagnetic compatibility testing faces considerable challenges. To address these challenges, this paper studies the electromagnetic characteristics and working principles of various components in the proton therapy system, combines them with corresponding standard requirements, and delves into the difficulties and testing methods of electromagnetic compatibility immunity detection through actual repeated tests. Furthermore, the paper proposes testing key points for beam quality tests and provides references for the selection of emission sources and distance settings in radio frequency electromagnetic field radiation immunity testing. The paper also supplements and improves the descriptions of alternative methods in the standards and offers solutions and testing suggestions for issues such as the excessive thickness of cables in the proton therapy system and the lack of suitable fixtures in conducted anti-interference tests. The provision of these solutions offers more effective references for related staff during testing, helps address difficulties encountered in practical operations, and thus more effectively ensures the safety and effectiveness of proton therapy systems.","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142001346","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 Progress of Wearable Devices in the Field of Depression Monitoring and Intervention]. [可穿戴设备在抑郁症监测和干预领域的应用进展]。

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-07-30 DOI: 10.12455/j.issn.1671-7104.230630

Yangliuqing He, Fenrong Liang, Yiming Wang, Yuhan Wei, Tianpei Ma

引用次数: 0

[Development Status of Integrated PET/MR Products]. [PET/MR 集成产品的开发现状]。

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-07-30 DOI: 10.12455/j.issn.1671-7104.230644

Liping He, Pengfei Yang

引用次数: 0

[Empirical Study on the Impact of Infusion Media on the Flow Rate of Infusion Pumps]. [输液介质对输液泵流量影响的实证研究]。

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-07-30 DOI: 10.12455/j.issn.1671-7104.230666

Ning Yao, Li Bao, Zhongkuan Lin, Yunming Shen, Kun Zheng

{"title":"[Empirical Study on the Impact of Infusion Media on the Flow Rate of Infusion Pumps].","authors":"Ning Yao, Li Bao, Zhongkuan Lin, Yunming Shen, Kun Zheng","doi":"10.12455/j.issn.1671-7104.230666","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230666","url":null,"abstract":"Objective: To investigate the impact of different infusion media on the flow rate of infusion pumps.Methods: Ten infusion pumps were randomly selected and tested for infusion rates using deionized water, saline solution, glucose solution, and parenteral nutrition solution. The infusion flow rate was set at 30 mL/h, and the testing methodology conformed to the standards for the calibration and quality control of syringe pumps and infusion pumps.Results: For infusion set A, the infusion rate was unaffected by the infusion media, remaining within the acceptable quality control standards. For infusion set B, when infused with deionized water, saline solution, and glucose solution, the infusion errors were within the quality control standards. However, when using parenteral nutrition solution as the infusion medium, the infusion error exceeded the acceptable quality control standards.Conclusion: Both the infusion set and the infusion medium can affect the flow rate of infusion pumps. It is crucial to calibrate the flow rate according to the specific infusion medium to reduce medical risks associated with infusion pumps during clinical use.","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142001338","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

[In-Vitro Analysis of Polyethylene Liner Wear Performance at 3 and 5 Million Cycles]. [300 万和 500 万次循环时聚乙烯衬垫磨损性能的体外分析]。

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-07-30 DOI: 10.12455/j.issn.1671-7104.230705

Shitong Yan, Jianjun Wang, Jian Su

{"title":"[In-Vitro Analysis of Polyethylene Liner Wear Performance at 3 and 5 Million Cycles].","authors":"Shitong Yan, Jianjun Wang, Jian Su","doi":"10.12455/j.issn.1671-7104.230705","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230705","url":null,"abstract":"Objective: The purpose of this study is to compare the wear properties of UHMWPE acetabular liners after undergoing 3 million (3 Mc) and 5 million (5 Mc) cycles of in-vitro wear testing. The results will serve as a reference for the design of in-vitro testing for hip prostheses and as a control for clinical revision removals.Methods: Wear tests were conducted on three different sizes of acetabular liners (28 mm, 32 mm, and 36 mm internal diameters) using a hip simulator to determine the amount of wear after 3 and 5 million cycles. The analysis included the number, size, and shape of abrasive particles.Results: After 3 and 5 million cycles of wear, the amount of wear on the acetabular liner increased as the inner diameter increased. The abrasive particles had an average equivalent circular area diameter (ECD) of 0.27 μm and 0.29 μm, and 94.4% and 90.1% of the aspect ratio (AR) less than 4.Conclusion: The amount of wear on the acetabular liner after 3 Mc wear can indicate the wear performance of the product. The number of particles increased and the percentage of fibrous particles was higher after 5 Mc wear compared to 3 Mc wear.","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142001310","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 Development of Nursing Bed Lifting Mechanism Technology]. [护理床升降机构技术开发研究]。

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-07-30 DOI: 10.12455/j.issn.1671-7104.240076

Jing Luo, Niannian Wang

引用次数: 0

[Voluntary and Adaptive Control Strategy for Ankle Rehabilitation Robot]. [踝关节康复机器人的自主和自适应控制策略]。

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-07-30 DOI: 10.12455/j.issn.1671-7104.230642

Zhihang Shen, Ling Zhang, Yuehong Su, Hongwei Xing, Bin Li

{"title":"[Voluntary and Adaptive Control Strategy for Ankle Rehabilitation Robot].","authors":"Zhihang Shen, Ling Zhang, Yuehong Su, Hongwei Xing, Bin Li","doi":"10.12455/j.issn.1671-7104.230642","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230642","url":null,"abstract":"The control strategy of rehabilitation robots should not only adapt to patients with different levels of motor function but also encourage patients to participate voluntarily in rehabilitation training. However, existing control strategies usually consider only one of these aspects. This study proposes a voluntary and adaptive control strategy that solves both questions. Firstly, the controller switched to the corresponding working modes (including challenge, free, assistant, and robot-dominant modes) based on the trajectory tracking error of human-robot cooperative movement. To encourage patient participation, a musculoskeletal model was used to estimate the patient's active torque. The robot's output torque was designed as the product of the active torque and a coefficient, with the coefficient adaptively changing according to the working mode. Experiments were conducted on two healthy subjects and four hemiplegic patients using an ankle rehabilitation robot. The results showed that this controller not only provided adaptive the robot's output torque based on the movement performance of patients but also encouraged patients to complete movement tasks themselves. Therefore, the control strategy has high application value in the field of rehabilitation.","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142001350","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

[Development of ECG Common Mode Rejection Ratio Automatic Test System]. [开发心电图共模抑制比自动测试系统]。

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-07-30 DOI: 10.12455/j.issn.1671-7104.230697

Yongqiang Chen, Binbin Yan, Jun Zhang

引用次数: 0

[Implementation of Lung Nodule Detection Model Based on Incremental Meta-Learning]. [基于增量元学习的肺结节检测模型的实现]。

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-07-30 DOI: 10.12455/j.issn.1671-7104.240100

Zihao Zhang, Yuanyuan Yang

引用次数: 0

[Diagnostic Value of Micropure Imaging Combined with Strain Elastography in Correcting Artificial Intelligence S-Detect Technology for Benign and Malignant Breast Complex Cystic and Solid Masses]. [微纯化成像结合应变弹性成像在修正人工智能 S-Detect 技术对良性和恶性乳腺复杂囊性和实性肿块的诊断价值]。

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Pub Date : 2024-07-30 DOI: 10.12455/j.issn.1671-7104.230710

Jie Yuan, Cheng Wang, Yingfen Da

{"title":"[Diagnostic Value of Micropure Imaging Combined with Strain Elastography in Correcting Artificial Intelligence S-Detect Technology for Benign and Malignant Breast Complex Cystic and Solid Masses].","authors":"Jie Yuan, Cheng Wang, Yingfen Da","doi":"10.12455/j.issn.1671-7104.230710","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.230710","url":null,"abstract":"Objective: To explore the diagnostic value of micropure imaging (MI) combined with strain elastography (SE) in correcting artificial intelligence (AI) S-Detect technology for benign and malignant breast complex cystic and solid masses.Methods: The S-Detect diagnosis results were corrected based on the manifestations of MI and SE of the 145 breast complex cystic and solid masses. Postoperative pathological results were used as the gold standard to calculate the diagnostic sensitivity, specificity, and accuracy before and after correction. Additionally, receiver operating characteristic (ROC) curves were drawn for both groups, and the areas under the curves were compared.Results: There were 80 benign and 65 malignant pathological results. After the correction of S-Detect, the diagnostic sensitivity, specificity, and accuracy, as well as the areas under the ROC curves, were all improved compared to before the correction.Conclusion: Combining MI and SE to correct the diagnostic results of S-Detect can help improve the diagnostic efficacy of breast complex cystic and solid masses.","PeriodicalId":52535,"journal":{"name":"Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142001317","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