| Two-way design | One lumen for urine drainage and a second lumen for balloon inflation. | Confirm the intended two-way configuration, valve design, and compatibility with the specified accessories. |
| Catheter materials | Common options include latex, silicone-coated latex, and 100% silicone. | Check the exact material, coating, labeling, and relevant biocompatibility documentation for the finished device. |
| French sizes | Common product ranges include multiple sizes measured in French (Fr); the available range depends on the product line. | Request the current size list and confirm the size marking and dimensional tolerances for each SKU. |
| Balloon volume | Product models may specify different balloon fill volumes, including commonly offered 5–10 mL and selected 30 mL options. | Verify the model’s labeled fill volume, balloon performance data, and instructions for use; do not assume volumes are interchangeable. |
| Tip and drainage eyes | Tip style and drainage-eye configuration vary by model and intended use. | Review drawings, sample units, and model-specific performance specifications. |
| Length and intended user | Catheters are offered in different lengths and configurations for different patient groups and clinical needs. | Match the exact length and intended user stated in the product labeling and technical file. |
| Applicable product standard | ISO 20696:2018 addresses sterile, single-use urinary catheters. | Ask for the current declaration of conformity and evidence showing which models and manufacturing sites are covered. |
| Biological evaluation | ISO 10993 is a series of standards used for biological evaluation of medical devices. | Review the risk-based biological evaluation and applicable test reports for the finished device and its materials. |
| Quality system and market authorization | ISO 13485 is a medical-device quality-management-system standard. Regulatory requirements depend on the destination market; CE marking and FDA clearance are not interchangeable. | Check certificate validity, issuing body, site scope, device scope, and applicable market authorization independently. |
| Sterility and packaging | Sterile single-use models should be supplied in packaging that maintains sterility through the stated shelf life when stored as instructed. | Request sterilization validation, packaging validation, shelf-life evidence, and lot traceability records. |
| Production capacity | Comparable, independently verified factory capacity is not established by product specifications alone and is often site- and SKU-specific. | Request audited monthly capacity by model, recent output, utilization, lead time, and evidence that the stated capacity belongs to the approved manufacturing site. |