Diluent bag

Diluent bags must be manufactured using medical-grade PVC (DEHP-free) or Non-PVC (Polyolefin) materials to ensure biocompatibility and prevent chemical leaching. The material must exhibit high transparency for visual inspection of the contents and possess excellent barrier properties to maintain the stability of the diluent. For sensitive applications, ensure the film is multi-layered to provide oxygen and moisture protection.

Suppliers must adhere to ISO 15747, which specifies requirements for plastic containers for intravenous injections. It is mandatory to verify CE Marking (MDR 2017/745) for the European market and FDA 510(k) clearance for the U.S. market. Additionally, the manufacturing facility should hold an ISO 13485 certification for medical device quality management systems.

Key features include dual-port designs (one for injection and one for administration) with self-sealing medication ports to prevent leakage after needle withdrawal. The twist-off or pull-ring caps must be tamper-evident to ensure sterility. Furthermore, the bag should be designed to withstand autoclave sterilization (typically 121°C) without compromising seam integrity or port connections.

Request pressure test reports where the bag is subjected to internal pressure (e.g., 0.5 bar for 15 minutes) to check for leaks. Evaluate the tensile strength of the hanger hole to ensure it can support the weight of the fluid during infusion. Buyers should also confirm the drop test performance, ensuring the bag does not burst when dropped from a height of 1.5 to 2 meters.

Always request a Pre-Shipment Inspection (PSI) conducted by a third-party agency like SGS or Intertek. Focus on sterility batch records and pyrogen testing reports. When sourcing via Made-in-China.com, prioritize 'Audited Suppliers' who have undergone on-site verification of their production capacity and quality control systems.

Negotiate based on Total Cost of Ownership (TCO), including the cost of secondary packaging (over-wrap bags) and sterilization indicators. Discuss MOQ flexibility for customized printing or specific port configurations. For long-term contracts, aim for a staggered price reduction as volume increases, and ensure the lead time accounts for mandatory sterilization quarantine periods (usually 7-14 days).

Diluent bags are sensitive to temperature and sharp objects. Ensure the outer cartons are double-walled corrugated fiberboard with internal padding. Shipping documents must clearly state 'Medical Supplies: Handle with Care' and specify temperature-controlled shipping if the bags are pre-filled. For empty bags, maintain storage in a cool, dry, and dust-free environment to prevent degradation of the plastic film.

Utilize Secure Payment services provided by platforms like Made-in-China.com to ensure funds are only released upon proof of shipment. Verify the HS Code (typically 3926.90 or 9018.90) to calculate accurate import duties and check for any anti-dumping duties or specific medical import licenses required by your local Ministry of Health.