中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (14): 2269-2278.doi: 10.3969/j.issn.2095-4344.1615

• 生物材料综述 biomaterial review • 上一篇    下一篇

磷酸钙骨水泥的专利分析

张晓东1,刘 颖2   

  1. 1华东理工大学法学院知识产权研究中心,上海市 200237;2华东理工大学图书馆,上海市 200237
  • 收稿日期:2018-11-15
  • 作者简介:张晓东,女,1974年生,甘肃省环县人,汉族,2001年中国科学院原子核研究所毕业,博士,副教授,主要从事生物医药领域专利理论与实务,技术转移研究。

Patent analysis for calcium phosphate bone cements

Zhang Xiaodong1, Liu Ying2   

  1. 1School of Law, Intellectual Property Research Center, East China University of Science and Technology, Shanghai 200237, China; 2Library, East China University of Science and Technology, Shanghai 200237, China
  • Received:2018-11-15
  • About author:Zhang Xiaodong, MD, Associate professor, School of Law, Intellectual Property Research Center, East China University of Science and Technology, Shanghai 200237, China

摘要:

文章快速阅读:

 

文题释义:
磷酸钙骨水泥的应用价值及问题:磷酸钙骨水泥作为一种骨替代和骨填充材料,因其流动性佳、固化中放热少且骨传导作用及生物相容性良好、具有可降解性及可载药性等优点,在骨修复方面有重要应用价值,但也因其固化时间偏长、易被冲刷溃散、力学性能不足等问题的限制,目前一般只能用于非负重区骨的修复。临床上已有多种国内外产品上市,目前仍有大量的研究工作投入到对磷酸钙骨水泥的改良中,以期拓展使用范围。
对磷酸钙骨水泥专利检索及分析的意义:磷酸钙骨水泥领域国内外专利申请量大,基础专利虽然已过期,但配合上市产品的多项重要专利仍在有效期内,且新研发成果均体现在专利中。各种改性技术涉及面广,覆盖了无机盐、聚合物、生物活性因子、载药、氧化物、其他有机物等各种组分,近年生物活性分子改性和载药日趋受到重视。专利检索及分析,一方面能够为业界提供专利角度的研发热点所在,另一方面也能提示侵权风险,为中国的相关研发提供参考。
 
 
背景:作为骨替代和填充材料,磷酸钙骨水泥在临床上有重要的应用价值,但仍有一定的缺点,使其应用范围受限,因此磷酸钙骨水泥的改性是研究热点,产业界及学术界需要了解全球专利状况。
目的:分析磷酸钙骨水泥相关技术专利信息,有助于为中国磷酸钙骨水泥的技术发展及专利预警提供参考。
方法:以Incopat数据库为数据来源,通过人工手工筛查磷酸钙骨水泥专利,以2 711个筛查出的密切相关专利为基础分析对象,从申请趋势、专利布局、竞争对手、技术功效4个方面进行分析,并结合技术发展重点和产业化发展情况,筛选出在中国布局的重点专利。

结果与结论:美国在磷酸钙骨水泥领域处于专利布局领先地位,中国发展迅速;目前研发和专利布局重点仍为各种改性技术。虽然该领域部分基础专利已过期,但外国公司在中国布局了一些重要专利,中国企事业研发及产业化时仍需进行专利侵权风险排查,同时中国研发成果需要关注国际布局,以便为未来打开国际市场做出铺垫。

ORCID: 0000-0001-7038-9291(张晓东)

关键词: 磷酸钙骨水泥, 专利趋势分析, 专利布局, 竞争对手分析, 技术功效分析, 生物材料

Abstract:

BACKGROUND: Calcium phosphate bone cement exhibits great commercial potential as bone filling materials in the field of clinical biomedical engineering; however, due to some existing technical and theoretical challenges, its wide spread application is hindered. It is therefore necessary to search existing patents to explore various potential improvements in modification of calcium phosphate bone cement.

OBJECTIVE: To analyze the patent information of calcium phosphate bone cement for better understanding of the development of the calcium phosphate bone cement technology, and for early warning of patent infringement.
METHODS: Based on the manual screening of Incopat patent database, we analyzed 2 711 patent documents from four aspects — the application trend, patent layout, competitor analysis, and efficacy matrix. In combination with technology development and industrialization, this paper also shows some important Chinese patents selectively.
RESULTS AND CONCLUSION: The United States is in the leading position in the calcium phosphate bone cement field, while this technology is developing rapidly in China. Various components and methods are developed for modifying calcium phosphate bone cement, which are the focus of patent development and layout. Although some of the fundamental patents have expired, patent infringement risks need to be tested and mitigated for the development and industrialization by Chinese enterprises as there are some important patents in China arranged by foreign companies. At the same time, Chinese patent holders need to master international patent layout and develop their intellectual properties for the future international marketplace.

Key words: Calcium Phosphates, Patents, Tissue Engineering

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