1.Intelligent co-design of material, process, and equipment for manufacturing high-quality traditional Chinese medicine preparations.
Bing XU ; Yan-Jiang QIAO ; Shou-Ying DU ; Zhi-Qiang ZHANG ; Wei XIAO
China Journal of Chinese Materia Medica 2023;48(15):3977-3987
In the context of Pharma 4.0, the design tools that support the pharmaceutical Quality by Design(QbD) are iterating fast toward intelligent or smart design. The conventional development methods for traditional Chinese medicine(TCM) preparations have the limitations such as over dependence on experience, low dimensions for the designed experiment parameters, poor compatibility between the process and equipment, and high trial-and-error cost during process scale-up. Therefore, this paper innovatively proposed the intelligent co-design involving material, process, and equipment for manufacturing high-quality TCM preparations, and introduced the design philosophy, targets, tools, and applications with TCM oral solid dosage(OSD) as an example. In terms of design philosophy, the pharmaceutical design tetrahedron composed of critical material attributes, critical process parameters, critical equipment attributes, and critical quality attributes was developed. The design targets were put forward based on the product performance classification system. The design tools involve a design platform that contains several modules, such a as the iTCM material database, the processing route classification system, the system modeling and simulation, and reliability-based optimization. The roles of different modules in obtaining essential and universal design knowledge of the key common manufacturing units were introduced. At last, the applications of the co-design methodology involving material, process, and equipment in the high shear wet granulation process development and the improvement of the dissolving or dispersion capability of TCM formula granules are illustrated. The research on advanced pharmaceutical design theory and methodology will help enhance the efficiency and reliability of drug development, improve the product quality, and promote the innovation of high-end TCM products across the industry.
Medicine, Chinese Traditional
;
Reproducibility of Results
;
Quality Control
;
Computer Simulation
;
Commerce
;
Pharmaceutical Preparations
;
Drugs, Chinese Herbal
2.Development and Research Progress of 3D Printing Technology in Orthopedic Medical Devices.
Jingyang CHEN ; Zexin HONG ; Liang CHEN ; Yufeng WU
Chinese Journal of Medical Instrumentation 2023;47(5):533-538
With the characteristics of fast prototyping and personalized manufacturing, 3D-printing (three-dimensional printing) is an emerging technology with promising applications for orthopedic medical devices. It can complete the process of medical devices with complex shape which can not be completed by conventional fabrication process. At present, a variety of orthopedic medical devices manufactured by 3D printing technology, has been approved for marketing, and their use has been proved to be beneficial. 3D bioprinting in this area has also made a few breakthroughs. However, many challenges still remain to be addressed as well. In this study, the research status, as well as the development of the 3D-printing technology in the field of orthopedic medical devices is elaborated.
Printing, Three-Dimensional
;
Bioprinting
;
Commerce
;
Research
3.Risk Management Analysis of Medical Device Registration Self-inspection.
Yonghong LI ; Jianning ZHU ; Yanxue FANG ; Hua YANG
Chinese Journal of Medical Instrumentation 2023;47(5):545-549
Through the analysis of laws and policies related to registration self-inspection, visiting and researching enterprises, holding symposiums, and issuing nationwide questionnaires, the risks in the registration self-inspection process were summarized, analyzed, and evaluated. From the aspects of regulatory departments and manufacturing enterprises, we suggest to improve China's medical device registration regulations system and reduce the risks of all parties in the registration self-inspection work.
Risk Management
;
Commerce
;
Medical Device Legislation
4.Introduction and Discussion of IMDRF Personalized Medical Device Regulatory Pathways.
Chinese Journal of Medical Instrumentation 2023;47(6):669-673
OBJECTIVE:
To interpret the key contents of the guidance of Personalized Medical Device Regulatory Pathways issued by the IMDRF, and provide reference for the improvement of China's medical device regulatory system.
METHODS:
The regulatory requirements of personalized medical devices and point-of-care manufacture of medical device were described respectively, and the feasibility of implementing the regulation of point-of-care manufacture of medical device in China was analyzed.
RESULTS:
The different regulatory pathways of medical devices produced at point-of-care are feasible and have different regulatory risks.
CONCLUSIONS
In combination with the recommendations provided by the IMDRF guidance and the clinical and regulatory realities in China, we should accelerate the improvement of the regulations and supporting documents for point-of-care manufacture of medical device in China.
Commerce
;
Medical Device Legislation
;
China
5.Overview of Chinese medicinal materials industry in 2021 and development suggestions.
Xiu-Fu WAN ; Jing-Yi JIANG ; Ye YANG ; Chuan-Zhi KANG ; Sheng WANG ; Chao-Geng LYU ; Lan-Ping GUO ; Lu-Qi HUANG
China Journal of Chinese Materia Medica 2023;48(3):608-613
This paper introduced the overview of the "eight trends" of Chinese medicinal materials(CMM) industry in 2021, analyzed the problems of CMM production, and put forward development suggestions. Specifically, "eight trends" could be summarized as follows.(1) The growing area of CMM tended to be stable, and some provinces began to release the local catalog of Dao-di herbs.(2) The protection process of new varieties accelerated, and a number of excellent varieties were bred.(3) The theory of ecological cultivation was further enriched, and the demonstration effect of ecological cultivation technology was prominent.(4) Some CMM realized complete mechanization and formed typical model cases.(5) The number of cultivation bases using the traceability platform increased, and provincial internet trading platforms were set up.(6) The construction of CMM industrial clusters accelerated, and the number of provincial-level regional brands increased rapidly.(7) Many new agricultural business entities were founded nationwide, and a variety of methods were used to drive the intensified development of CMM.(8) A number of local TCM laws were promulgated, and the management regulation of food and medicine homology substances catalogs was issued. On this basis, four suggestions for CMM production were proposed.(1) It is suggested to speed up the formulation of the national catalog of Dao-di herbs and carry out the certification of Dao-di herbs production bases.(2) Ecological planting of forest and grassland medicine should be further strengthened in terms of technical research and promotion based on the principle of ecological priority.(3) The basic work of disaster prevention should be paid more attention and technical measures for disaster mitigation should be developed.(4) The planted area of commonly used CMM should be incorporated into the national regular statistical system.
Agriculture
;
Certification
;
Commerce
;
Industry
;
China
6.Four critical engineering and technical problems in manufacturing measurement of traditional Chinese medicine.
Zhi-Sheng WU ; Yan-Jiang QIAO ; Wei XIAO ; Qi WANG
China Journal of Chinese Materia Medica 2023;48(11):2841-2855
Focusing on the development and quality improvement strategy of the traditional Chinese medicine(TCM) industry, the scientific and technological innovation of the new engineering of TCM should be paid attention to solve the "stuck neck" dilemma. Under the background of the ecological and industrial revolution of the scientific and technological innovation system, the super-scale information interaction and multi-dimensional integration will inevitably lead to profound changes in the manufacturing mode of TCM. Manufacturing measurement of TCM is formed on the basis of the reliability engineering theory of process control of TCM production. It is the development extension of system theory and system science ideas and a cross-fertilization discipline that combines theory with practice and adheres to the "four-oriented" re-epistemology improvement of the TCM discipline. In response to the problems of complex raw material sources, coarse process technology, unclear material basis, and poor applicability of equipment and technology in the manufacture of TCM, the transformation research mode of "aiming at the integration of pharmaceutical industry-developing intelligent production line-enabling industrial transformation" has been developed. This paper proposed the four key engineering technical problems, i.e., the identification of critical quality attributes(CQA) in the manufacture of TCM, the quality by design(QbD) and product development of the manufacturing process of TCM, the quality transfer principle and multivariate process capability index of TCM manufacturing, and the development of measurement technology and equipment of the manufacturing measurement of TCM, to achieve the systematization of quality control indicators, real-time process control, digitalization of manufacturing process, transparency of quality transfer, and intelligent whole-process control. In this paper, the new concepts, new theories, and new technologies provide a reference for the industrialization of TCM.
Medicine, Chinese Traditional
;
Reproducibility of Results
;
Commerce
;
Drug Industry
;
Quality Control
7.Manufacturing classification system for oral solid dosage forms of traditional Chinese medicines (Ⅱ): classification of tablets disintegration behavior.
Xiao-Qing ZHAO ; Dong-Ling LIAO ; Fei-Yu QI ; Zi-Chen LIANG ; Xue-Fang TANG ; Sheng-Yun DAI ; Yan-Jiang QIAO ; Bing XU
China Journal of Chinese Materia Medica 2023;48(12):3180-3189
In this paper, 50 batches of representative traditional Chinese medicine tablets were selected and the disintegration time was examined with the method in Chinese Pharmacopoeia. The disintegration time and disintegration phenomenon were recorded, and the dissolution behaviors of water-soluble and ultraviolet-absorbent components during the disintegration process of tablets were characterized by self-control method. The results revealed that coating type and raw material type influenced the disintegration time of tablets. It was found that only 4% of traditional Chinese medicine tablets had obvious fragmentation during the disintegration process, while 96% of traditional Chinese medicine tablets showed gradual dissolution or dispersion. Furthermore, according to the disintegration speed, disintegration phenomenon, and whether the cumulative dissolution of measured components was > 90% at complete disintegration, a disintegration behavior classification system(DBCS) was created for the regular-release traditional Chinese medicine tablets. As a result, the disintegration behaviors of 50 batches of traditional Chinese medicine tablets were classified into four categories, i.e. ⅠA_2, ⅠB_1, ⅡB_1, and ⅡB_2. traditional Chinese medicine tablets(Class I) with disintegration time ≤ 30 min were defined to be rapid in disintegration, which can be the objective of optimization or improvement of Chinese herbal extract(semi extract) tablets. Different drug release models were used to fit the dissolution curve of traditional Chinese medicine tablets with gradual dissolution or dispersion phenomenon(i.e. Type B tablets). The results showed that the dissolution curves of water-soluble components in the disintegration process conformed to the zero order kinetics and the Ritger-Peppas model. It could be inferred that the disintegration mechanisms of type B tablets were a combination of dissolution controlled and swelling controlled mechanisms. This study contributes to understanding the disintegration behavior of traditional Chinese medicine tablets, and provides a reference for the design and improvement of disintegration performance of traditional Chinese medicine tablets.
Commerce
;
Medicine, Chinese Traditional
;
Tablets
;
Water
;
Drug Compounding
8.Research on Management Efficiency of Hospital Low-value Consumables in Nursing Unit under Lean Management Mode.
Chengwen DONG ; Guoping TANG ; Qingli ZHOU
Chinese Journal of Medical Instrumentation 2023;47(3):341-345
Aiming at the management efficiency problems in the traditional medical low-value consumables management mode of the nursing unit, based on the perspective of supply chain management, this study uses lean management method to construct the lean management mode of low-value consumables with a whole cycle and whole process information monitoring, and analyzes the application effect of this mode. The results show that after the application of lean management mode, the low-value consumables of the nursing unit can achieve "consumables in use=priced consumables + un-priced consumables", the settlement cost is significantly reduced and its stability is high, and the efficiency of "supply-inventor-distribution" link is significantly enhanced. This model effectively improves the management efficiency of low-value consumables in the hospital, and also provides a reference for other hospitals to improve the management level of low-value consumables.
Hospitals
;
Commerce
9.Characterization and Comparison Analysis of WHO Monographs on Selected Medicinal Plants and ISO Standards of Chinese Materia Medica.
Jing-Yi YANG ; Zhen SANG ; Rui WANG ; Yan-Hong SHI ; Yi-Ran HUANG
Chinese journal of integrative medicine 2023;29(6):540-548
Medicinal plants or Chinese materia medica (CMM) are now attracting worldwide attention as they have increasingly prominent advantages over chemical drugs in disease treatment and healthcare. Since the 1990s, World Health Organization (WHO) and International Organization for Standardization established the Technical Committee of Traditional Chinese Medicine (ISO/TC 249) have carried out the development of quality standards on medicinal plants or CMMs respectively, and a considerable number of monographs and international standards have been published. Since the two international organizations adhere to different principles, the standards they develop naturally have different emphasis. Driven by market demand and international trade, ISO mainly takes quality, efficacy and safety into consideration when developing standards, while WHO pays more attention to clinical practice, quality control and medication guidance. Up to now, there is a lack of comparative analysis on the records, background, principles, basic content, and main requirements of quality standards on medicinal plants or CMMs respectively published by WHO and ISO. Therefore, based on international standards of CMM developed by ISO/TC 249 platform and WHO Monographs on Selected Medicinal Plants, this paper systematically compares the purposes, selected principles, standard-developing process, basic content, and main quality requirements to summarize their similarities and differences, and find their merits, aiming to serve as a reference to the development of international standards for CMMs that helps them go global.
Materia Medica/therapeutic use*
;
Plants, Medicinal
;
Commerce
;
Internationality
;
Medicine, Chinese Traditional
;
Reference Standards
;
Drugs, Chinese Herbal/therapeutic use*
;
China
10.Discovery and distribution of and response to arbovirus in China over the past seven decades.
Chinese Journal of Schistosomiasis Control 2023;35(5):427-436
Arbovirus is a group of virus transmitted by blood-sucking arthropod bites, which infects both arthropods and vertebrates. More than 600 arboviruses have been characterized worldwide until now, including 65 highly pathogenic viruses, which pose a high threat to public health. The risk of arbovirus transmission is increasing due to climate change, international trade and urbanization. The review summarizes the discovery and distribution of emerging and reemerging arboviruses and novel arboviruses with potential pathogenic risks, and proposes responses to the arbovirus transmission risk, so as to provide insights into the research and management of arboviruses and arthropod-borne infectious diseases in China.
Animals
;
Humans
;
Arboviruses/physiology*
;
Commerce
;
Internationality
;
Arbovirus Infections/prevention & control*
;
Vertebrates

Result Analysis
Print
Save
E-mail