中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240597

Jinhong Yao, Yan Jin, Xinyu Zhao

引用次数: 0

[Research Progress of External Ventricular Drainage Catheterization Techniques]. 外脑室引流置管技术的研究进展

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240460

Zhenzhen Han, Kunshan Yuan, Haijun Zhang

引用次数: 0

[3D Pulse Image Detection and Pulse Pattern Recognition Based on Subtle Motion Magnification Technology]. 基于细微运动放大技术的三维脉冲图像检测与脉冲模式识别。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240567

Chongyang Yao, Yongxin Chou, Zhiwei Liang, Haiping Yang, Jicheng Liu, Dongmei Lin

{"title":"[3D Pulse Image Detection and Pulse Pattern Recognition Based on Subtle Motion Magnification Technology].","authors":"Chongyang Yao, Yongxin Chou, Zhiwei Liang, Haiping Yang, Jicheng Liu, Dongmei Lin","doi":"10.12455/j.issn.1671-7104.240567","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.240567","url":null,"abstract":"To address the problem of large reconstruction errors in 3D pulse signals caused by excessively small out-of-plane displacement of the contact membrane in the existing traditional Chinese medicine fingertip tactile binocular vision detection technology, this study proposes a 3D pulse image detection method based on subtle motion magnification technology and explores its application in pulse pattern recognition. Firstly, a 3D pulse image detection system based on binocular vision to obtain pulse image signals is developed as experimental data. Then, the phase motion video magnification algorithm is used to amplify the original signals, and the amplified signals are reconstructed in three dimensions to obtain 3D pulse signals. On this basis, nine features are extracted from the 3D pulse signals and features selection is performed using a two-sample Kolmogorov-Smirnov test. Finally, machine learning algorithms such as decision trees and random forests are used to identify the five types of pulse conditions: deep pulse, intermittent pulse, flooding pulse, slippery pulse, and rapid pulse. The experimental results show that compared to the methods without subtle motion magnification technology, the proposed method significantly improves waveform clarity, amplitude stability, and periodic regularity. Meanwhile, the average accuracy in pulse pattern recognition reaches 96.29%±0.26%.","PeriodicalId":52535,"journal":{"name":"中国医疗器械杂志","volume":"49 3","pages":"255-262"},"PeriodicalIF":0.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509361","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

[Accuracy Assessment of Cone-Beam CT Images for Pelvic Tumor Dose Calculation]. 锥形束CT图像在骨盆肿瘤剂量计算中的准确性评估。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240655

Bao Li, Yongzhong Chen, Jun Jin, Longjun Yan, Xiaoyong Wang

引用次数: 0

[Development of a Multimodal Transcranial Electrical Stimulation System with Integrated Four-Channel EEG Recordings]. [集成四通道脑电图记录的多模态经颅电刺激系统的开发]。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240419

Yan Hang, Chaoyang Wang, Qi Yin, Yanan Liu, Lin Huang, Jilun Ye, Xu Zhang

引用次数: 0

[Application of Artificial Intelligence in Surgical Robotics]. [人工智能在外科机器人中的应用]。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240456

Linghan Zhang, Yuan Lin

引用次数: 0

[A Novel Coronary Knobby Scoring Balloon and Biomechanical Study in Intravascular Dilation]. 一种新型冠状动脉结节评分球囊和血管内扩张的生物力学研究。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240595

Feng Guo, Junmin Guo, Jipeng Chen, Xuemei Duan, Wenkang Zhang

引用次数: 0

[Performance Testing of Medical Ultrasound Diagnostic Equipment Based on Tissue-Mimicking Phantom]. [基于组织模拟的医用超声诊断设备性能测试]。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240617

Hao Liu, Longyang Jia, Ruiyao Jiang

{"title":"[Performance Testing of Medical Ultrasound Diagnostic Equipment Based on Tissue-Mimicking Phantom].","authors":"Hao Liu, Longyang Jia, Ruiyao Jiang","doi":"10.12455/j.issn.1671-7104.240617","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.240617","url":null,"abstract":"This study aims to ensure the effectiveness of medical ultrasound diagnostic equipment in clinical applications by testing multiple key performance indicators using tissue-mimicking phantoms and exploring the changes in these performance indicators over time. Firstly, 17 in-service medical ultrasound diagnostic equipments were selected, and their depth of penetration, dead zone, lateral resolution, axial resolution, geometric position error, and cystic focal diameter error were tested according to the verification regulations. In addition, the study retrospectively analyzed the performance testing data of 19 medical ultrasound diagnostic equipments over the past three consecutive years and conducted statistical analysis. Through the testing, all performance indicators of the 17 equipments met the requirements of the verification regulations, indicating that they can stably and reliably provide high-quality ultrasound diagnostic images and data in clinical applications. Meanwhile, retrospective data showed that with the increase with the increase in service life, the resolving ability at the far field of the 19 equipments decreased, and the cystic focal diameter error increased. Therefore, it is recommended that medical institutions establish a regular testing and maintenance system for medical ultrasound diagnostic equipment, conducting regular performance evaluations and maintenance to ensure its good working condition.","PeriodicalId":52535,"journal":{"name":"中国医疗器械杂志","volume":"49 3","pages":"308-312"},"PeriodicalIF":0.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509385","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

[Study on Performance of Nebulizer for Pressurized Intraperitoneal Aerosol Chemotherapy]. [加压腹腔喷雾化疗用雾化器的性能研究]。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240696

Lanfeng Zhang, Guangjun Guo, Guibing Hou

{"title":"[Study on Performance of Nebulizer for Pressurized Intraperitoneal Aerosol Chemotherapy].","authors":"Lanfeng Zhang, Guangjun Guo, Guibing Hou","doi":"10.12455/j.issn.1671-7104.240696","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.240696","url":null,"abstract":"Objective: The study investigates the performance parameters of a nebulizer for pressurized intraperitoneal aerosol chemotherapy (PIPAC).Methods: Laser diffraction spectroscopy was used to measure the median droplet diameter ( D 50) and spray angle during the steady-state aerosol phase.Results: The minimum droplet diameter of aerosol was achieved when using a nozzle of 0.2 mm diameter and 0.07 mm thickness. The nebulizer could not produce steady-state aerosol when the liquid flow rate was less than or equal to 0.3 mL/s. When the liquid flow rate was greater than or equal to 0.5 mL/s, as the working pressure increased, the median particle size gradually decreased and the spray angle gradually increased. When the pressure is greater than or equal to 200 psi（1 psi=6 894.76 Pa）, as the liquid flow rate increased, the spray angle gradually increased. At a flow rate of 0.7 mL/s and working pressure of 300 psi, the median droplet diameter of aerosol D 50 was 16 μm with a spray angle up to 89.2°.Conclusion: As a novel intraperitoneal drug delivery technology, PIPAC requires further research focusing on reducing droplet size, expanding drug distribution, improving tissue permeability, and increasing drug concentration.","PeriodicalId":52535,"journal":{"name":"中国医疗器械杂志","volume":"49 3","pages":"330-335"},"PeriodicalIF":0.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509394","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 and Efficacy Evaluation of Steam Thermal Ablation System for Liver Tumor]. 肝肿瘤蒸汽热消融系统的设计及疗效评价

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.250114

Wei Wei, Xiaofei Jin, Lidong Xing, Zhiyu Qian, Haotian Wang, Jingqi Song, Kairan Wan

引用次数: 0

中国医疗器械杂志最新文献