In the medical field, even the smallest components can play a critical role in ensuring the accuracy and safety of diagnostic procedures. One such component is the Rubber stoppers for blood collection tubes. Despite its seemingly simple appearance, the rubber stopper serves a crucial function in the collection, preservation, and analysis of blood samples.

Rubber stoppers are often color-coded to indicate the type of additive or anticoagulant present in the blood collection tube. This helps healthcare professionals easily identify the tube and select the appropriate test or analysis for the sample.

The selection of materials for rubber stoppers is crucial to ensure their effectiveness and safety in blood collection tubes. Key considerations include:

Biocompatibility: Rubber stoppers must be biocompatible and non-reactive to blood components to prevent interference with sample analysis or adverse reactions in patients. High-quality synthetic rubber materials such as bromobutyl or synthetic isoprene are commonly used for their biocompatibility and chemical resistance.

Chemical Stability: Rubber stoppers should exhibit chemical stability to withstand exposure to additives, preservatives, and disinfectants commonly used in blood collection tubes. This ensures that the stoppers maintain their integrity and sealing properties throughout the shelf life of the tube.

Elasticity and Flexibility: Rubber stoppers should have the appropriate elasticity and flexibility to create a tight seal when inserted into the tube opening. This ensures that the stopper forms a secure barrier against leakage and contamination, even under varying temperatures and pressures.