Blood Transfusion Set: A key tool for clinical blood transfusion safety

In the field of modern medicine, blood transfusion, as an important medical method, is widely used in multiple scenarios such as surgery, trauma, anemia, and cancer treatment. As the core device in the blood transfusion process, the safety, design rationality, and material quality of the Blood Transfusion Set are directly related to the efficiency of blood transfusion and the life safety of the patient.

1. What is a blood transfusion set? Basic definition and clinical significance
A blood transfusion set is a medical device used to connect a blood bag to a venous catheter to safely and aseptically transfuse blood or blood products into the human venous system. It is a disposable medical device and must meet the strict requirements of the national drug supervision and administration department for sterile and non-pyrogenic products.

Clinical significance:
The blood transfusion set not only has the function of transporting blood, but also must prevent air from entering the vein, prevent particulate matter from being injected into the body, prevent bacterial contamination, and prevent hemolytic reactions. Therefore, the design of each of its components is related to the success or failure of blood transfusion.

2. What are the components of a blood transfusion set?
A standard blood transfusion device mainly includes the following parts:

Spike: The entrance for piercing the blood bag, usually made of hard medical plastic.

Air filter and air inlet: Ensure smooth blood flow and filter pollutants in the air.

Drip chamber: Used to observe the transfusion speed and prevent bubbles from entering the body. The transparent visual design makes it easier for medical staff to master the rhythm.

Filter: Built-in microporous filter device, which can filter clots, foreign matter, etc. in the blood.

Infusion pipe (PVC hose): Made of medical grade PVC material, the length is generally between 150-200cm, ensuring a certain degree of infusion freedom.

Roller clamp: Adjust the flow rate and control the drip rate accuracy.

Injection port and vent: For emergency drug injection.

Luer connector: Used with indwelling needles and intravenous needles, safe connection without leakage.

3. What is the difference between a blood transfusion set and an ordinary infusion set?
Many people confuse blood transfusion sets with infusion sets, but they have significant differences in design and use:

Higher material requirements: Blood transfusion sets usually use higher-grade medical PVC or DEHP-free materials to prevent hemolysis or precipitation of active substances.

Stronger filtration performance: Built-in blood filtration device can intercept tiny impurities such as blood clots to avoid adverse reactions.

More stable pressure resistance and flow rate control design: Ensure constant pressure during blood delivery to avoid red blood cell rupture.

Higher pyrogen requirements: Ensure that the product will not cause transfusion fever reaction.

4. What are the types of disposable blood transfusion sets?
According to usage requirements and structural differences, blood transfusion sets can be roughly divided into the following types:

V. Why is the safety of blood transfusion set materials so concerning?
Blood transfusion sets are in contact with the patient's venous system and blood, so their biocompatibility is extremely critical:

No DEHP trend: Traditional PVC pipes contain DEHP plasticizers, which may cause reproductive toxicity or hormone interference. More and more manufacturers are turning to DEHP-Free or TPE (thermoplastic elastomer) materials.

Highly transparent materials: It is convenient for medical staff to observe blood flow rate and blood status and respond to abnormal situations in a timely manner.

Strong temperature resistance: It can be used with a blood warmer to avoid the risks of cold blood transfusion.

Blood transfusion is a rigorous and sensitive medical practice, and any negligence may lead to serious consequences. A high-quality blood transfusion device is not only a channel connecting life, but also an important line of defense to ensure patient safety. Whether it is hospital purchasers, doctors and nurses, or manufacturing companies, they should pay close attention to the quality and safety of blood transfusion devices and jointly protect the continuation of every life.