结论:分类按规则判定,判定结果决定要不要公告机构介入
欧盟的分类不是查目录,而是按一套规则逐条判定 ——根据产品的预期用途、侵入性、使用时间、是否有源、作用部位等因素,套用规则得出类别。
分类结果直接决定符合性评价的路径: 较低类别可以由制造商自行声明;较高类别需要公告机构介入。这个差别对时间和成本的影响很大。
所以分类判定是欧盟路径的第一步,而且判定过程要有记录——不只是给出结论,还要说明依据哪条规则、为什么。
分类判定的思路
第一步,写清楚预期用途。 与其他市场一样,这是所有判定的基础。
第二步,确定产品的基本属性。 是否有源、是否侵入、接触什么部位、使用多久。
第三步,逐条套用规则。 所有可能适用的规则都要看,不能只看第一条符合的。
第四步,取较高的那一类。 如果多条规则适用且结果不同,通常取较高的类别。
第五步,记录判定过程。 依据哪条规则、如何适用、结论是什么。
第三步是容易出错的地方。 有些企业找到一条看起来符合的规则就停了,但可能还有其他规则适用且给出更高的类别。规则要全部过一遍。
轮椅产品的常见判定问题
有源还是无源。 手动轮椅是无源的,电动轮椅是有源的。这个区分影响适用的规则。
是否有治疗功能。 带康复训练功能的产品可能适用不同的规则。
与皮肤的接触。 接触时间的判定影响某些规则的适用。
附件的处理。 坐垫、靠背等附件是作为轮椅的一部分还是独立产品。
软件的角色。 带软件控制的产品,软件的功能可能影响分类。
「附件的处理」在实务中经常引起困惑。 一个坐垫,作为轮椅的配套件与作为单独销售的产品,处理方式可能不同。建议明确每个部件是随整机提供还是单独上市。
各路径的差异
| 类别层级 | 路径特点 |
|---|---|
| 较低 | 制造商自行声明,技术文件自备 |
| 中等 | 公告机构介入,范围视具体情形 |
| 较高 | 公告机构介入程度更深 |
需要公告机构介入时,要考虑: 公告机构的选择与排期;审核的范围(体系、技术文件、或两者);费用;以及周期。
公告机构的排期是实际的制约因素,建议尽早接洽,不要等资料都准备好了才开始找。
技术文件的组成
无论哪条路径,技术文件都要完备。轮椅产品的技术文件通常包括:
产品描述与预期用途;分类判定及依据;设计与制造信息;通用安全与性能要求的符合性论证;适用标准清单;风险管理文件;检测报告;生物相容性评价;电气安全与电磁兼容资料(有源产品);阻燃数据;临床评价;说明书与标签;上市后监督计划;以及质量体系相关信息。
「通用安全与性能要求的符合性论证」是技术文件的主线。 它逐条说明产品如何满足各项要求、依据什么证据。这部分做扎实,整个技术文件的结构就清楚了。
临床评价的处理
轮椅类产品的临床评价通常可以依靠已有数据:
同类产品的临床数据。 通过等同性论证使用。
文献。 关于该类产品的已发表研究。
上市后数据。 自己产品的使用经验(如果已在其他市场销售)。
风险效益分析。 基于上述数据。
等同性论证要具体。 与哪个产品等同、技术特征如何比较、临床使用是否相同。论证不足是临床评价被质疑的常见原因。
上市后的义务
欧盟路径对上市后的要求比较具体:
上市后监督计划。 在技术文件中就要有。
定期的安全更新报告。 按类别确定频次。
警戒与事件报告。 严重事件的报告义务。
趋势报告。 非严重事件的趋势分析。
这些义务需要持续投入,不是一次性工作。建议在上市前就把相应的流程和资源安排好,而不是等到有义务了才建立。
与其他市场的协同
欧盟的技术文件相对完整,准备好之后对其他市场的复用率较高:
检测报告可以直接用(确认机构资质被接受);生物相容性评价可以用;风险管理文件可以用;临床评价的部分内容可以用;说明书需要按各市场调整语言和内容。
所以如果计划进入多个市场,先做欧盟通常是效率较高的顺序,因为准备的完整度较高,后续市场的增量工作较少。
标准的使用
欧盟路径中,使用协调标准可以简化符合性论证。实务上的做法:
列出产品适用的标准。 按产品类型和功能确定。
核对标准的现行版本。 标准会更新,要用现行有效的版本。
说明标准与要求的对应。 哪个标准覆盖哪条安全与性能要求。
处理标准未覆盖的部分。 标准覆盖不到的要求,要单独论证。
说明偏离。 如果某些条款不适用或有偏离,说明理由。
「标准未覆盖的部分」值得注意。 标准是针对通用情形制定的,产品的特殊功能可能不在标准范围内。这些部分需要自行设计验证方案并论证充分性。
说明书的要求
欧盟对说明书的内容要求比较具体,轮椅产品通常需要包含:
预期用途与适用人群;使用前的检查;组装与调节方法;操作说明;安全警示与使用限制;维护与保养;清洁方法;故障处理;技术参数;配件与更换件信息;废弃处理;以及制造商与授权代表信息。
语言要求是各成员国的官方语言,这意味着多语言版本的准备工作量不小,建议提前规划。
我们的做法
承接面向欧盟的轮椅委托时,我们会按适用标准的完整清单安排测试,报告出英文版本并包含完整的实测数据。 这样的报告在技术文件中可以直接作为符合性证据。
阻燃和生物相容性同样是我们会提醒的两项,因为它们在轮椅产品的测试计划里容易被漏掉,而在技术文件审查中是明确的要求。
如果你有轮椅产品计划进入欧盟市场,想先理清检测范围和标准清单,可以把产品资料发过来一起讨论,或者直接联系:132 4819 8029。检测能力见服务介绍,产品分类见手动轮椅检测与电动轮椅检测,案例见案例。
English version
Conclusion. European classification is determined by applying a set of rules rather than consulting a list: intended use, invasiveness, duration of use, whether the device is active and the site of action are all applied against the rules to reach a class. The resulting class determines the conformity assessment route directly: lower classes may be self-declared by the manufacturer, while higher classes require a notified body, and that difference has substantial effects on time and cost. Classification is therefore the first step for the European route, and the process must be recorded: not just the conclusion but which rule was applied and why.
How to classify. Write the intended use clearly, since as in other markets it underpins every judgement. Establish the product's basic attributes, covering whether it is active, whether invasive, what it contacts and for how long. Apply every rule that might be relevant rather than stopping at the first that fits. Take the highest class where several rules apply and give different answers. And record the reasoning, stating the rule relied upon, how it was applied and the conclusion. The third step is where errors occur: some manufacturers stop at the first rule that appears to fit, when another may also apply and give a higher class. Work through them all.
Common questions for wheelchairs. Active or not, since manual chairs are non-active and powered chairs active, a distinction affecting which rules apply. Whether a therapeutic function exists, since products with rehabilitation training functions may fall under different rules. Skin contact, since the determination of contact duration affects the applicability of certain rules. Treatment of accessories, since cushions and backrests may be part of the chair or separate products. And the role of software, since the function of controlling software may affect classification. Accessories frequently cause confusion in practice: a cushion supplied with a chair and one sold separately may be handled differently. State explicitly whether each component is supplied with the complete product or placed on the market independently.
Differences between routes. At lower classes the manufacturer self-declares and holds the technical documentation. At intermediate classes a notified body is involved, with scope depending on circumstances. At higher classes notified body involvement is deeper. Where a notified body is required, consider its selection and availability, the scope of its assessment covering the quality system, the technical documentation or both, the fees, and the duration. Notified body availability is a real constraint: approach them early rather than waiting until the documentation is complete.
Composition of the technical documentation. Whichever route applies, the documentation must be complete, typically covering product description and intended use; the classification and its basis; design and manufacturing information; a demonstration of conformity with the general safety and performance requirements; the list of applicable standards; risk management documentation; test reports; biological evaluation; electrical safety and electromagnetic compatibility documentation for active products; flammability data; clinical evaluation; instructions and labelling; the post-market surveillance plan; and quality system information. The demonstration of conformity with the general requirements is the spine of the documentation, addressing each requirement in turn with the evidence relied upon. Done thoroughly, it gives the whole file a clear structure.
Clinical evaluation. For wheelchairs, clinical evaluation can generally rely on existing data: clinical data on equivalent products, used through an equivalence argument; literature, meaning published research on the product class; post-market data, meaning experience with your own product where already sold elsewhere; and a benefit-risk analysis built on those. The equivalence argument must be specific, identifying the comparator, comparing technical characteristics and confirming that clinical use matches. Inadequate argument is the common reason clinical evaluations are challenged.
Post-market obligations. European requirements here are fairly specific: a post-market surveillance plan, required within the technical documentation; periodic safety update reporting at a frequency set by class; vigilance and incident reporting for serious incidents; and trend reporting for non-serious ones. These require continuing effort rather than one-off work, so arrange the processes and resources before launch rather than establishing them once the obligation arises.
Coordinating with other markets. European technical documentation is comparatively complete, and once prepared it reuses well elsewhere: test reports transfer directly subject to acceptance of the issuing body, biological evaluation transfers, risk management documentation transfers, parts of the clinical evaluation transfer, and instructions need language and content adjustment per market. Doing Europe first is therefore usually the efficient order for a multi-market plan, since the preparation is thorough and the increment for later markets is small.
How we handle it. For European wheelchair work we scope testing to the complete list of applicable standards and issue English reports containing full measured data, so that they serve directly as conformity evidence within the technical documentation. Flammability and biocompatibility are again the two we flag, since both are easily missed in a wheelchair test plan while being explicit requirements in documentation review.
Send us the product information and we will work out the test scope and standards list. Phone or WeChat: +86 132 4819 8029.