For manufacturers of disposable puncture devices, the strictness of quality control determines the survival or failure of the enterprise. Under the ISO 13485 system, manufacturers must establish a defense system of not accepting, not manufacturing, and not releasing defective products. The six or more inspections mentioned in the materials are not empty words; they are the necessary process for each product before it leaves the factory.

First-Piece Inspection and Process Control

Before production begins, the QE (Quality Engineer) of the manufacturer must conduct a full-size measurement of the first piece. Using a two-dimensional imaging instrument and a micrometer, every dimension from the outer diameter, inner diameter to taper is checked. Especially the sharpness of the tip of the piercing cone is tested. The manufacturer usually uses standard silicone blocks or tissue-like materials for this purpose, records the penetration force value, and ensures batch consistency. Once entering mass production, IPQC (Process Quality Control) will conduct random inspections every hour to monitor the size drift caused by the wear of the cutting tools.

Endoscopic Comprehensive Examination: Hidden Blind Spots That Cannot Be Seen

This is the most unique and stringent part of the quality control for the puncture device. Since the puncture tube is a deep-hole component, any internal metal debris or oil contamination is fatal. The manufacturer must arrange dedicated inspectors to use industrial endoscopes to inspect the interior of the tube. The document particularly emphasizes manual checks for debris inside the steel tubes. This is an extremely tedious but highly responsible task. The inspector must ensure that there are no foreign objects within the line of sight. Any tube with residual debris inside will be directly scrapped.

Functional Simulation Test

In addition to the static dimensions, manufacturers also need to conduct dynamic tests. Attach the puncture device to the simulated chest/abdominal wall, connect the pneumoperitoneum machine, and pressurize to 15 mmHg for 30 minutes. The pressure drop is required to be no more than 1 mmHg. At the same time, repeatedly insert and withdraw standard-sized instruments (such as forceps, dissecting forceps) 500 times to check if the sealing cap has failed and if the cannula is loose. Only batches that pass these extreme tests can obtain the release certificate.

Non-Conforming Product Traceability and CAPA

When the QC detects an anomaly, the manufacturer's handling process directly reflects its level of maturity. Is it simply to scrap a few parts, or to activate the CAPA (Corrective and Preventive Action) system, trace the cause, revise the process documents, and conduct training for all staff? The latter is the reliable manufacturer. In the medical industry, quality has no room for chance. Every release is an endorsement of the manufacturer's credibility.