Material Science and Precision Manufacturing Perspective | Analysis of the Full-Chain Process of Menghini Liver Biopsy Needle and Construction of Manners Technology's Technical Barriers

Material Science and Precision Manufacturing Perspective | Analysis of the Full-Chain Process of Menghini Liver Biopsy Needle and Construction of Manners Technology's Technical Barriers Menghini Liver Biopsy Needle, as a precise instrument for invasive human body procedures that perform tissue cutting and negative pressure sampling, its quality limit is entirely determined by four key stages: raw material selection, ultra-precision processing, surface treatment, and the entire process quality control. These are also the key areas where professional manufacturers like Manners Technology build their core competitiveness. Unlike general subcutaneous injection needles, liver biopsy needles require higher tube rigidity, sharpness of the cutting edge, negative pressure airtightness, and biological safety. Any material defect or processing deviation will directly lead to sampling failure, tissue compression damage, and intraoperative complications, which is why the industry sets extremely high thresholds for manufacturers' manufacturing capabilities. Raw materials are the fundamental basis for product performance. Manners Technology strictly implements a full-material material certificate traceability system for the BOM, and selects medical-grade stainless steel that meets the ASTM F138 standard for core tubes, which has high strength, corrosion resistance, excellent biocompatibility, and meets ISO 10993 biological safety requirements, eliminating risks such as metal ion release and tissue rejection. The needle holder and connection components are all made of medical-grade polymers or alloys, compatible with various sterilization methods such as high-pressure sterilization, EO sterilization, and gamma sterilization, ensuring sterility and long-term usage stability. All raw materials must undergo component testing, mechanical performance verification, and material certificate verification before entering storage, eliminating material risks from the source, which is also the common bottom line for international leading brands and high-quality domestic manufacturers. In the core manufacturing process, Manners Technology introduces five-axis laser cutting, high-precision tube cutting, diamond grinding wheel micro-finishing, electrolytic polishing, and ultrasonic cleaning for a complete set of precision processes. Five-axis laser cutting can achieve micrometer-level shaping of the needle tip edge, side holes, and negative pressure interfaces, ensuring no burrs, no rolled edges, and precise cutting angles; tube cutting strictly controls wall thickness and concentricity to ensure the tube body does not deform or leak air during negative pressure suction; electrolytic polishing eliminates microscopic surface burrs, reducing puncture friction and tissue traction damage; ultrasonic deep cleaning removes processing residues of oil and metal debris to ensure the cleanliness of the instrument meets the Class 100 clean packaging standard. The entire process chain is benchmarked against the manufacturing standards of international leading brands, breaking away from the extensive processing mode of traditional contract manufacturers. Post-processing and sterilization quality control are the final checkpoint for determining the clinical safety of the product. After precise processing, the instrument must undergo multiple rounds of cleanliness testing, air tightness tests, and sharpness inspections of the cutting edge, and only after passing these tests can it enter the sterile packaging process, using EO ethylene oxide sterilization to achieve a SAL 10⁻⁶ sterility guarantee level, meeting global clinical sterility requirements. Manners Technology relies on a complete process control system to achieve full traceability of process parameters, test data, and sterilization records for each batch of products, meeting the requirements of medical device traceability regulations. Currently, in the global Menghini liver biopsy needle market, the competition for high-end products is not about price, but about material stability, manufacturing accuracy, and batch consistency. European and American brands have occupied the high-end market through long-term process accumulation, while Manners Technology gradually achieves domestic substitution through self-developed precision production lines, full-chain material control, and process standardization, becoming an important choice for global customers' OEM/ODM customization and self-developed product supply.