中国医疗器械杂志最新文献_第2页

[Determination of Acetate Content in Hemodialysis Solutions and Dialysis Concentrates by HPLC]. [HPLC法测定血液透析液和透析浓缩液中醋酸盐含量]。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240718

Huadong Wang, Yue Wang, Dong Liu, Xianghui Liu

引用次数: 0

[Research and Discussion on the Whole Lifecycle Supervision of Typical Class Ⅱ Wound Dressing Products]. [典型类Ⅱ伤口敷料产品全生命周期监管的研究与探讨]。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240550

Lan Zhang, Ye Zeng, Xin Xie, Jiaohui Bao, Xiaohe Yang, Weiming Qi

引用次数: 0

[Review of Leachable Substances in Prefilled Syringes]. [预充式注射器中可浸出物质综述]。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240353

Shuhan Wang, Senju Ma, Jun Peng, Linnan Ke, Yuanli Huang

引用次数: 0

[Research Progress on Application of Intelligent Operation and Maintenance Models in Medical Equipment Management]. [智能运维模型在医疗设备管理中的应用研究进展]。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240561

Jin Li, Xiu Xu, Jing Tong, Wei Jin, Chenge Wang, Ruiyao Jiang

引用次数: 0

[Comparative Study of Seven New Dressings in Promoting Chronic Wound Healing in db/db Mice]. 7种新型敷料促进db/db小鼠慢性创面愈合的比较研究

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240693

Qiuyun Feng, Jia Ke, Danning Qi, Lei Zhou, Haiguang Chai

引用次数: 0

[Research on MRI Gradient Coil Magnetic Field Induced Eddy Current Method]. 磁共振梯度线圈磁场感应涡流法的研究

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240596

Xiaotao Zhang, Yicheng Li, Zhanping Zheng, Mingke Wang, Like Feng, Congbo Li

{"title":"[Research on MRI Gradient Coil Magnetic Field Induced Eddy Current Method].","authors":"Xiaotao Zhang, Yicheng Li, Zhanping Zheng, Mingke Wang, Like Feng, Congbo Li","doi":"10.12455/j.issn.1671-7104.240596","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.240596","url":null,"abstract":"After the production of the gradient coil of the magnetic resonance imaging system, electromagnetic field testing is required to verify whether the assembly accuracy meets the electromagnetic field requirements. Since the passive magnetic field B z satisfies the Laplace ,s equation and is a harmonic function, and according to the extreme value principle of harmonic function, the maximum or minimum values of B z can only appear on the boundaries, so the observation points of the magnetic field are generally selected on the surface of the spherical imaging area. For superconducting magnets used for human body magnetic resonance imaging, a spherical area with a center diameter of 40~50 cm is generally selected as the shimming target area. Only the field value of the target area needs to be measured, and the spherical harmonic coefficients obtained after data processing are used to determine the magnetic field performance of the gradient coil. There are many testing principles and methods for electromagnetic fields, so there is no unified way and method in the field of commercial applications. This article is based on the Gauss-Legendre numerical integration, measures and analyzes the magnetic field performance of gradient coils by building a data acquisition system, and this article applies numerical analysis methods to calculate the spherical harmonic coefficients of the magnetic field using discrete test data, providing a feasible method for the production and testing of gradient coils.","PeriodicalId":52535,"journal":{"name":"中国医疗器械杂志","volume":"49 3","pages":"263-268"},"PeriodicalIF":0.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144509389","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

[Key Aspects of Performance Evaluation on Droplet Digital PCR Instrument]. [液滴数字PCR仪性能评价关键方面]。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240426

Wen Bao

引用次数: 0

[Research on Classification of Medical Devices with Nanomaterials]. 纳米材料医疗器械分类研究

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240600

Qian Dong, Li Yi, Liyin Wen, Rui Liu, Jinglong Tang, Jiong Zhu

引用次数: 0

[Review on Applications of Deep Learning in Digital Pathological Images]. [深度学习在数字病理图像中的应用综述]。

中国医疗器械杂志 Pub Date : 2025-05-30 DOI: 10.12455/j.issn.1671-7104.240499

Chaoyi Lyu, Yuan Xie, Lu Qiu, Lu Zhao, Jun Zhao

引用次数: 0

[Quantitative Study on Morphological Parameters of Healthy Cervical Spinal Cord Based on SCT]. 基于SCT的健康颈脊髓形态学参数定量研究

中国医疗器械杂志 Pub Date : 2025-03-30 DOI: 10.12455/j.issn.1671-7104.240337

Wei Jin, Hao Liu, Ruiyao Jiang, Guangqi Liu

{"title":"[Quantitative Study on Morphological Parameters of Healthy Cervical Spinal Cord Based on SCT].","authors":"Wei Jin, Hao Liu, Ruiyao Jiang, Guangqi Liu","doi":"10.12455/j.issn.1671-7104.240337","DOIUrl":"https://doi.org/10.12455/j.issn.1671-7104.240337","url":null,"abstract":"Objective: To utilize Spinal Cord Toolbox (SCT) to measure the morphological parameters of healthy cervical spinal cords and explore the impact of gender, age and vertebral levels on them.Methods: A retrospective study was conducted, collecting cervical spinal cord magnetic resonance images of 184 healthy adults. Then, cross-sectional area (CSA), eccentricity, antero-posterior diameter (AP) and right-left diameter (RL) were each computed for every subject. Then, impacts of gender, age and vertebral level on CSA and eccentricity were explored. Moreover, linear correlation analysis was conducted among CSA, AP and RL.Results: The CSA of the cervical spinal cord in males was significantly larger than that in females at C2~C7 segments (P＜0.05) . For C2~C6 segments, there was no statistically significant difference in CSA between the young and middle-aged groups, but both were significantly larger than that of the elderly group. CSA of C4 was the largest whereas CSA of C7 was the smallest. Eccentricity values of C4 and C5 were significantly larger than those of other vertebral levels (P＜0.05). Linear correlation was established between CSA, AP and RL at C2~C7 segments.Conclusion: The results allow for minimizing inter-subject variability using normalization, and thereby highlighting the importance of morphological parameters as biomarkers in the research of cervical spinal lesions.","PeriodicalId":52535,"journal":{"name":"中国医疗器械杂志","volume":"49 2","pages":"141-147"},"PeriodicalIF":0.0,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144039325","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