Pipette tips are commonly used tools in medical diagnosis and are widely used in sample collection, processing, analysis and drug preparation. In the sample collection process, the tips are used to absorb the patient's blood, urine, tissue fluid and other samples; in the sample processing and analysis stage, the tips are used to transfer the samples to test tubes, culture dishes and other containers for subsequent biochemical analysis, cytological examination, etc.; in the drug preparation process, the tips are used to accurately measure and transfer drug components to ensure the accuracy and effectiveness of the drugs.

Since the tips are in direct contact with patient samples or drugs, their safety and reliability are directly related to the accuracy of the diagnostic results and the treatment effect of the patients. Therefore, it is crucial to choose manufacturing materials with good biocompatibility.

Among the manufacturing materials of pipette tips, medical-grade polymer materials are favored for their excellent biocompatibility. These materials have a wide range of applications in the medical field, such as medical devices, implants, drug packaging, etc., and their safety and reliability have been widely recognized.

Low toxicity: Medical-grade polymer materials have extremely low toxicity and will not release harmful substances even when in contact with patient samples or drugs for a long time, thus ensuring the purity of samples and drugs.
Non-irritating: These materials are non-irritating to human tissues and will not cause discomfort or inflammatory reactions in patients even when in contact with sensitive areas or after long-term use.
Good chemical stability: Medical-grade polymer materials have excellent stability to a variety of chemicals and can resist the erosion of substances such as acids, alkalis, and organic solvents, thus ensuring that the tips maintain their integrity and functionality when in contact with various samples and drugs.
Processability and plasticity: These materials have good processability and plasticity and are easy to make into tips of various shapes and sizes to meet different medical diagnostic needs.

In the field of medical diagnosis, many well-known pipette manufacturers choose medical-grade polymer materials as the manufacturing materials for tips. These tips have shown excellent biocompatibility and safety in practical applications.

For example, in some high-end pipette brands, the tips are made of medical-grade polymer materials such as polypropylene (PP) and polyethylene (PE). These materials have undergone rigorous biocompatibility testing and certification to ensure the safety and reliability of the tips when in contact with patient samples or drugs. At the same time, these tips also have good chemical stability and mechanical strength, which can meet the needs of various complex sample processing and drug preparation.

Although medical-grade polymer materials have performed well in ensuring the biocompatibility of pipette tips, they still face some challenges in practical applications. For example, compatibility issues between different materials, aging issues of materials in long-term use, and adsorption issues of materials to specific samples or drugs.

To solve these problems, manufacturers need to take a series of measures. Strict compatibility tests should be carried out on different materials to ensure the compatibility between the selected materials. Long-term stability tests should be carried out on the tips to evaluate their performance changes in long-term use. The surface treatment technology of the tips should also be optimized to reduce the adsorption of materials to specific samples or drugs, thereby improving the purity and accuracy of samples and drugs.