输血输液器具检测清单

结论：微粒、化学残留、以及连接的可靠性，是三个关注点

输血输液器具（输液器、输血器、延长管、三通、留置针）是量大面广的一次性产品。它们的共同特点是与药液或血液直接接触，并且建立了从体外到血管内的通路。

三个关注点是：

微粒。 器具本身释放的微粒会进入血管，可能造成栓塞或组织反应。

化学残留。 材料中的物质迁移到药液中，随药液进入人体。

连接的可靠性。 各连接处脱开会导致失血、空气进入、或药液外漏。

其余项目（物理性能、滴速、过滤、生物相容性、无菌）围绕功能和安全展开。

项目清单

关键部件的考察

穿刺器。 穿刺力、穿刺后的密封、与容器塞的配合。

滴斗。 容积、透明度、便于观察、防止空气进入。

管路。 柔韧性、抗折、透明度、耐压。

流量调节器。 调节范围、调节的精度和稳定性、长时间使用后的滑移。

过滤器。 过滤效能、堵塞时的表现、气体排出。

注射件。 穿刺后的密封、反复穿刺的耐受。

接头。 连接强度、泄漏、与其他器具的配合。

「流量调节器的滑移」是实际问题。 调好的滴速在长时间输注中可能因为管路蠕变或调节器滑移而变化，这一项应当做长时间的稳定性验证。

微粒的考察

微粒的来源。 材料本身、加工残留、切割断面、包装。

测量方式。 用规定的冲洗液冲洗，测量冲洗液中的微粒数量和尺寸分布。

限值。 按尺寸分档的数量限值。

影响因素。 材料、加工工艺、清洗、包装、灭菌。

实际使用中的微粒。 除了器具本身，还有穿刺产生的胶塞碎屑。

「穿刺产生的胶塞碎屑」是实际的微粒来源。 穿刺器刺穿输液瓶胶塞时可能带下碎屑，穿刺器的设计（尖端形状）影响碎屑的产生量，这一项值得验证。

化学要求的考察

这类产品有一组化学项目：

还原物质。 反映可被氧化的物质的量。

金属离子。 特别是重金属。

酸碱度。 浸提液与空白的差值。

蒸发残渣。 浸提液中不挥发物质的量。

紫外吸光度。 反映有机物的量。

特定物质。 比如增塑剂，如果使用含增塑剂的材料。

「增塑剂的迁移」在使用含增塑剂材料的产品上需要关注，因为某些药液（含脂类的）会增加增塑剂的溶出。

物理性能的考察

各部件的连接强度。 拉伸至分离的力。

管路的抗折。 折弯后是否堵塞。

耐压。 在规定压力下不泄漏不破裂。

负压密封。 某些使用场景涉及负压。

透明度。 便于观察药液和气泡。

滴斗的弹性。 便于挤压排气。

「连接强度」的薄弱点通常在不同材料的连接处，比如硬质接头与软管的连接、金属针与塑料座的连接。

无菌与热原

无菌。 灭菌确认与无菌检查。

内毒素。 热原物质的限值。

灭菌方式的相容。 与材料的相容性。

包装的无菌屏障。 完整性与有效期。

「内毒素」对输液类产品是关键项，因为它直接进入血液，可能引起发热反应，而它不被常规灭菌破坏。

送检准备的建议

提供产品的完整构成。 各部件的材料。

说明适用的药液。 影响相容性评价。

提供配套使用的产品。 与哪些容器、针具配合。

准备足够样品。 化学和微粒项目消耗量大。

说明灭菌方式与参数。

提供包装样品。 完整性验证需要。

特定类型的额外考察

输血器。 过滤网的孔径与效能、对血细胞的影响、储血袋的配合。

精密过滤输液器。 过滤精度、流量、堵塞特性。

避光输液器。 避光性能、对光敏药物的保护。

留置针。 穿刺性能、导管的柔软度、回血观察、封管。

无针接头。 密封性、反复穿刺的耐受、消毒的可及性、残留量。

「无针接头的残留量」值得关注，因为残留在接头内的液体是微生物生长的场所，而接头反复使用。

生产与质量控制

这类产品量大，过程控制尤其重要：关键尺寸的在线检测；密封和连接的过程监控；洁净环境的控制；灭菌批次的管理；以及成品的抽检项目。

「洁净环境的控制」直接影响微粒和微生物指标，因为产品在生产过程中暴露于环境。

与临床使用的衔接

产品资料中应当说明：适用的药液类型与限制；使用的操作步骤（排气、连接、调节）；单次使用的时间限制；以及不相容的药物或材料。

「时间限制」有实际意义，长时间使用后管路材料可能变化，而实际中有超时使用的情况。

「不相容的药物」应当具体列出，因为某些药物会与管路材料相互作用，影响药物浓度或析出材料成分。

常见的不合格项

微粒超限。 多来自加工残留或清洗不足。

化学指标超限。 材料或助剂的溢出。

连接强度不足。 不同材料连接处的工艺问题。

滴速偏差。 滴斗或调节器的尺寸偏差。

内毒素超限。 生产环境或原料的引入。

这五项建议作为过程控制的重点监控对象。

我们的做法

承接这类产品委托时，我们建议微粒测试用与实际接近的冲洗条件，并关注穿刺器在实际穿刺时产生的碎屑——这部分微粒在常规的冲洗测试中不体现，但在实际使用中会进入液路。

流量调节方面，我们建议做长时间的滴速稳定性验证，因为实际输注可能持续数小时，而调节器的滑移和管路的蠕变是逐渐发生的。

如果你有输血输液类产品需要安排检测，想先理清项目清单，可以把产品资料发过来一起讨论，或者直接联系：132 4819 8029。能力范围见服务介绍，流程见检测流程，更多内容见知识库。

English version

Conclusion. Transfusion and infusion devices, including infusion sets, transfusion sets, extension lines, stopcocks and indwelling catheters, are high-volume single-use products. They contact medicinal solutions or blood directly and establish a pathway from outside the body into the vasculature. Three concerns follow. Particulates, since particles released by the device enter the bloodstream and may cause embolism or tissue reaction. Chemical residues, since substances migrating from materials into the solution enter the body with it. And connection reliability, since disconnection causes blood loss, air entry or leakage of solution. The remaining items covering physical performance, drip rate, filtration, biocompatibility and sterility address function and safety.

The item list. Physical performance covers tensile strength, connection strength and pressure resistance. Leakage covers positive and negative pressure. Drip rate covers drop factor and flow control. Filtration covers filter effectiveness. Particulates cover counts in rinse fluid. Chemical performance covers reducing substances, metal ions, acidity and alkalinity, evaporation residue and ultraviolet absorbance. Biocompatibility covers blood contact items. Sterility and pyrogens cover sterility and endotoxin. Packaging covers barrier, integrity and shelf life. And marking covers product information and warnings.

Examining key components. The spike requires penetration force, sealing after penetration and compatibility with container closures. The drip chamber requires volume, transparency, ease of observation and prevention of air entry. Tubing requires flexibility, kink resistance, transparency and pressure resistance. The flow regulator requires adjustment range, accuracy and stability, and resistance to slipping during prolonged use. Filters require filtration effectiveness, behaviour when blocked and gas venting. Injection sites require sealing after penetration and tolerance of repeated puncture. And connectors require connection strength, freedom from leakage and compatibility with other devices. Flow regulator slippage is a real problem: a drip rate set correctly may change during prolonged infusion as tubing creeps or the regulator slips, and long-duration stability verification is warranted.

Examining particulates. Sources include the materials themselves, processing residues, cut surfaces and packaging. Measurement rinses with a specified fluid and counts particles by number and size distribution. Limits apply by size band. Influencing factors include materials, processing, cleaning, packaging and sterilisation. And particulates in actual use include closure fragments generated by spiking. Closure fragments are a real particulate source: spiking an infusion bottle's rubber closure can shear off fragments, and spike design, particularly tip geometry, affects how many are produced, which warrants verification.

Examining chemical requirements. These products carry a group of chemical items. Reducing substances reflect the quantity of oxidisable material. Metal ions cover heavy metals particularly. Acidity and alkalinity are expressed as the difference between extract and blank. Evaporation residue reflects non-volatile matter in the extract. Ultraviolet absorbance reflects organic content. And specific substances such as plasticisers apply where plasticised materials are used. Plasticiser migration deserves attention in products using plasticised materials, since certain solutions, particularly lipid-containing ones, increase plasticiser extraction.

Examining physical performance. Connection strength covers the force to separate each joint. Tubing kink resistance covers whether bending occludes the lumen. Pressure resistance covers freedom from leakage and rupture at specified pressure. Negative pressure sealing applies where suction is involved. Transparency allows solution and air to be seen. And drip chamber flexibility allows squeezing to prime. Connection strength is usually weakest where different materials meet, such as rigid connector to flexible tubing and metal needle to plastic hub.

Sterility and pyrogens. Sterility requires sterilisation validation and sterility testing. Endotoxin requires limits on pyrogenic substances. Sterilisation compatibility with materials must be confirmed. And the packaging sterile barrier requires integrity and shelf life. Endotoxin is a critical item for infusion products, since it enters the bloodstream directly and can cause pyrogenic reactions while surviving routine sterilisation.

Preparing for submission. Provide the complete product composition covering each component's material. Describe the solutions the product suits, which informs compatibility assessment. Provide the products used in combination, covering which containers and needles. Prepare sufficient samples, since chemical and particulate items consume a good number. Describe the sterilisation method and parameters. And provide packaging samples for integrity verification.

How we handle it. For these products we suggest particulate testing under rinse conditions close to reality, and attend to fragments generated by actual spiking, since those particulates do not appear in routine rinse testing while entering the fluid path in real use. On flow regulation we suggest prolonged drip rate stability verification, since real infusions may run for hours while regulator slippage and tubing creep develop gradually.

Send us the product documentation and we will work through the item list. Phone or WeChat: +86 132 4819 8029.