Heel blood collector
A heel blood collector is a specialized medical device designed for the purpose of collecting blood samples from the heel of a patient, typically infants. It consists of several components that work together to ensure a safe and efficient blood collection process.
- Structure and Components
- Lancet: The lancet is the key part of the heel blood collector. It is a sharp, sterile needle – like device used to make a small puncture on the heel. The lancet is usually housed in a protective casing to prevent accidental injury and ensure sterility until use.
- Holder: The holder is used to hold the lancet in place and provide a handle for the operator. It is designed to be easy to grip and manipulate, allowing for precise control during the blood collection process. Some holders may have additional features such as a safety lock to prevent the lancet from being accidentally ejected.
- Blood Collection Container: This is used to collect the blood sample after the heel is punctured. It is usually a small, sterile tube or vial with a specific capacity, designed to hold the required amount of blood for testing. The container may have a stopper or cap to seal the sample and prevent contamination.
- Working Principle
- The heel blood collector works by using the lancet to make a small, shallow puncture in the skin of the heel. The puncture is made in a specific area where there is a good supply of blood vessels, allowing for an adequate blood sample to be obtained. Once the puncture is made, the blood naturally flows out due to the body’s blood pressure. The blood is then collected in the blood collection container for further analysis.
- Advantages
- Minimal Invasiveness: The heel blood collector causes minimal damage to the skin and underlying tissues, resulting in less pain and trauma to the patient, especially important when dealing with infants.
- Accuracy: It allows for precise and controlled blood collection, ensuring that the right amount of blood is obtained for accurate testing. This helps in providing reliable test results.
- Convenience: The device is easy to use and portable, making it suitable for use in various medical settings, such as hospitals, clinics, and even in home – based care situations.
Heel blood collectors play a crucial role in clinical medicine, especially in neonatal screening and other tests that require small amounts of blood for analysis. They help in the early detection and diagnosis of various diseases and conditions, enabling timely treatment and better patient outcomes.
足跟采血器，是专为从患者（尤其是新生儿）足跟部位采集血液样本而设计的专业医疗器械。它凭借独特的结构设计与科学的工作原理，在临床检验和新生儿疾病筛查等领域扮演着不可或缺的角色。
结构组成
- 采血针：采血针是足跟采血器的核心部件，通常由医用级不锈钢材质制成，极为锋利且经过严格灭菌处理。采血针的尖端经过特殊打磨，能在保证快速刺破皮肤的同时，尽可能减小创口，降低感染风险。其外部设有保护套，使用前处于封闭状态，确保使用时的安全与卫生。
- 握持器：握持器是方便医护人员操作的部分，一般采用符合人体工程学的设计，表面有防滑纹路，便于抓握。它与采血针紧密相连，不仅能稳固固定采血针，还能在操作过程中为医护人员提供精准的控制力，确保采血位置准确。
- 储血装置：储血装置用于收集采集到的血液样本，常见的形式为小型采血管或储血杯，具有特定的容量规格。采血管内壁通常经过特殊处理，添加了抗凝剂或促凝剂等，以满足不同检测项目对血液样本的要求，并且配备密封盖，可有效防止样本洒出和污染。
工作原理
使用时，医护人员先对新生儿足跟部位进行消毒，随后打开采血针的保护套，将握持器握在手中，以适当的力度将采血针刺入足跟皮肤特定区域。这个区域皮下毛细血管丰富，刺破后血液会自然流出，医护人员再将流出的血液引导至储血装置内，完成样本采集过程。整个过程操作简便，能快速、有效地获取所需的血液样本。
优势特点
- 微创安全：相较于其他采血方式，足跟采血器的创口极小，对患者造成的痛苦和创伤微乎其微，尤其适用于皮肤娇嫩、血管细小的新生儿，能有效避免因采血给患儿带来过多不适和伤害，同时降低感染几率。
- 样本准确：该设备能够精准控制采血量，所采集的血液样本能较好地满足各类检测需求，保证检测结果的准确性和可靠性，为疾病的早期诊断和治疗提供有力依据。
- 操作便捷：足跟采血器体积小巧、结构简单，医护人员经过专业培训后，可快速熟练掌握操作方法，适用于医院、妇幼保健院、社区卫生服务中心等多种医疗场所，甚至在一些特殊情况下可进行床旁采血，极大地提高了采血的灵活性和便利性 。
足跟采血器凭借其高效、安全、准确的特点，在医疗领域中为疾病的早期发现、诊断和治疗提供了重要的血液样本支持，对保障患者健康，尤其是新生儿的健康成长有着重大意义。