海外知识产权信息检索 > 专利无效检索案例

专利无效检索案例
2014-12-11 10:04:44 阅读

    一、检索需求:

   需无效的专利公开号为US7214211,专利的标题为Needle assembly with protective element。
 
    二、检索方法:
 
    1.分析要无效的技术方案
 
    (1)在进行检索之前,首先确定无效请求中准备评价的专利的单行本,即US7214211B2(Needle assembly with protective element),其扉页如图所示:
 
\
 
    (2)对无效请求中准备评价的专利的单行本进行阅读,理解发明内容,并进行分析归纳:即找出无效请求中的技术方案的所属技术领域、解决的技术问题、采用的技术手段和达到的技术效果。
 
    a)技术领域
 
    根据技术方案名称或分类号,确定所属技术领域及技术主题种类。
 
    从技术方案名称“Needle assembly with protective element”以及分类号“A61M 5/178; A61B 17/34; A61M 5/158; A61M 5/32; A61M 25/06”可以了解到,该技术方案为A protective device for an injection needle or infusion needle.
 
    b)技术问题
 
    根据技术背景和发明目的,理解技术方案所要解决的技术问题,以便于理解技术方案。
 
    该技术方案的目的:design a protective device of the type mentioned at the outset in such a way that actuation by hand is made easier and a risk of injury can be ruled out.
 
    c)技术手段
 
    根据具体技术方案描述及实施例,概括技术手段中的技术特征
 
    该技术方案的技术特征:A hypodermic needle assembly comprising a needle holder holding a portion of the hypodermic needle on an end spaced apart from a needle tip; a protective element comprising two arms and a wall comprising a first wall side and a second wall side positioned at an angle to the two arms and having an opening being slidably mounted on the hypodermic needle; a grip part comprising an interior surface defining an interior cavity and an exterior surface defining a gripping portion; wherein the protective element is disposed, at least in part, within the interior cavity of the grip part and the grip part and the needle holder have portions that overlap when the protective element is in the ready to use position: wherein the grip part is configured to be gripped and slide distally, which separates the grip part from the needle holder, which grip part then moves the protective element to a protective position to protect the needle tip from accidental contact therewith; and wherein the protective element is configured to prevent the grip part from being displaced beyond the needle tip and the grip part is configured to remain axially moveable along at least at portion of the needle relative to the protective element.
 
    d)技术效果
 
    根据有益效果,概括出技术方案能够达到的技术效果。
 
    该技术方案的技术效果:A risk of injury can also be ruled out by virtue of the fact that the protective element is brought into the protection position when the needle is being drawn back。
 
    2.阅读并分析权利要求,提取检索要素
 
    (1)根据被检索技术方案涉及的技术领域、技术手段和技术效果确定检索成分。以下为“US7214211B2 Needle assembly with protective element”的部分权利要求书:
 
    “1. A hypodermic needle assembly comprising a needle holder holding a portion of the hypodermic needle on an end spaced apart from a needle tip; a protective element comprising two arms and a wall comprising a first wall side and a second wall side positioned at an angle to the two arms and having an opening being slidably mounted on the hypodermic needle; a grip part comprising an interior surface defining an interior cavity and an exterior surface defining a gripping portion; wherein the protective element is disposed, at least in part, within the interior cavity of the grip part and the grip part and the needle holder have portions that overlap when the protective element is in the ready to use position: wherein the grip part is configured to be gripped and slide distally, ……”
 
    (2)选择通用词汇作为各检索要素名称。
 
    应检成分:
 
    hypodermic needle(注射针),Huber needle,epidural needle,protective(保护),assembly(装置),protective element,……
 
    技术领域检索要素:hypodermic needle(注射针,注射器),Huber needle,epidural needle……
 
    技术手段检索要素:assembly(装置),protective element,……
 
    技术效果检索要素:protective(保护)……
 
    3.确定检索要素表达
 
    表达检索要素的专利信息特征主要是主题词(包括关键词、同义词、缩略语等)和分类号。
 
    (1)主题词
 
    用关键词表达时可选用“范围最大的概念”。
 
    用英文关键词表达时可采用“词根+截断符”方式,例如:protect*(可涵盖“protective、protecting……”等)
 
    同义词表达选用相同词义的表达,例如:注射针,可选用“hypodermic needle,injection needl,infusion needle”等。
 
    (2)分类号
 
    专利文献中常用的专利分类号有:国际专利分类(IPC)、欧洲专利分类(ECLA、ICO)、美国专利分类(USPC)、日本专利分类(FI、F-term)、联合专利分类(CPC)。
 
    单一检索要素的表达,如:
 
    检索要素:hypodermic needle,Huber needle,epidural needle,protective,assembly,protective element,……
 
    IPC表中的小组分类:
 
    注射针:A61M5/158,A61M5/32,A61M5/34,A61M25/06……
 
    4.选择检索系统/数据库,并构建检索式
 
    5.浏览检索结果并作出初步判断,调整检索策略
 
    (1)检索结果
 
    检索到相关专利文献5篇:
 
 
序号 类型 公开/公告号 公开/公告日 主分类号 相关部分
1 X US5215528A 19930601 A61M5/178 附图及说明书
2 Y US5147327A 19920915 A61M5/32 附图及说明书
3 Y WO94/00172A1 19940106 A61M5/32 附图及说明书
4 Y CN1267226A 20000920 A61M25/06 附图及说明书
5 A US4929241A 19900529 A61M5/32 附图及说明书
 
    注引用文件的专用类型:
 
    “X”单独影响权利要求的新颖性或创造性的文件;
 
    “Y”与该检索报告中其它Y类文件组合影响权利要求创造性的文件;
 
    “A”背景技术文件,即反映权利要求的部分技术特征或者有关的现有技术的一部分的文件;
 
    “E”单独影响权利要求新颖性的抵触申请文件;
 
    “P”中间文件,其公开日在申请的申请日与所要求的优先权日之间的文件,或者会导致需要核实该申请优先权的文件。
 
    (2)适时中止检索
 
    可中止检索的几种情况主要包括:
 
    a)已检索到可影响全部主题的新颖性或创造性的一篇文献(X、E级);
 
    b)已检索到两篇或两篇以上,其结合影响全部主题的创造性的文献(Y级);
 
    c)从其它途径已找到上述(1)、(2)所述文献;
 
    d)根据工作经验判断不必再检索。
 
    6.依据美国专利法律、法规对该技术方案的新颖性和创造性进行评价。
【上一篇】 专利法律状态检索 【下一篇】同族专利检索