The primary function of a rubber stopper for blood collection tube is to securely seal the tube after blood is drawn. It prevents leakage, contamination, and exposure to external factors, thus preserving the integrity of the sample during transport and storage. Furthermore, in vacuum blood collection systems, the stopper maintains the vacuum inside the tube, ensuring that the correct amount of blood is drawn during the collection process. Without a properly designed stopper, the blood sample could be compromised, inaccurate test results or even potential health risks for the patient.

Given the critical role that the rubber stopper for blood collection tube plays in the medical diagnostic process, choosing the right material and design is essential.

When selecting a rubber stopper for blood collection tube, the factor to consider is the type of material. The common materials used for rubber stoppers include latex, butyl rubber, and silicone, each offering different properties that may be suited for specific medical applications.

Latex Rubber: Traditionally, latex was the widely used material for rubber stoppers for blood collection tubes due to its elasticity and ability to form a tight seal. However, latex is no longer as commonly used in medical applications due to concerns about potential allergic reactions in sensitive individuals. While latex stoppers are still available, they are less popular compared to other materials.

Butyl Rubber: Butyl rubber is a synthetic rubber that is frequently chosen for blood collection tube stoppers. It is known for its sealing properties, resistance to chemical reactions, and durability. Butyl rubber is particularly effective in maintaining the integrity of blood samples by preventing leakage and contamination. Additionally, it is less likely to cause allergic reactions compared to latex.

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Provides special chlorobutyl rubber formula for good compatibility
With pharmaceuticals Special treatment process and the most stringent process control ensure the cleanliness of the rubber stopper
Microbiological testing is to ensure the safety of rubber stoppers