In the critical world of transfusion medicine, the equipment you choose can be the difference between a wasted donation and a life saved. The 450ml Double Blood Bag is a sophisticated medical device designed for the safe collection, separation, and storage of human blood. While a single bag simply holds whole blood, the “Double” system is a precision tool that allows healthcare providers to maximize every donation by separating it into two vital components: red blood cells and plasma.
Whether you are a medical student learning the ropes of hematology or a procurement officer for a busy blood bank, our 450ml Double Blood Bags offer the durability, sterility, and safety features required for world-class patient care.
What is a 450ml Double Blood Bag Used For?
This system is the workhorse of modern blood centers. Its primary uses include:
- Whole Blood Collection: Safely drawing 450ml of blood from a donor (the standard volume for a safe donation).
- Component Separation: Allowing for the separation of Packed Red Blood Cells (PRBCs) and Fresh Frozen Plasma (FFP) within a sterile, closed system.
- Emergency Transfusions: Providing ready-to-use blood components for trauma, surgery, and maternal health emergencies.
- Long-term Storage: Keeping blood components viable and safe from bacterial contamination for several weeks.
Components of the Double Bag System
Our double blood bags are manufactured to meet stringent international medical standards (ISO and CE), featuring:
- The Primary Bag: A 450ml container pre-filled with CPDA-1 (Citrate Phosphate Dextrose Adenine) anticoagulant solution, which keeps the blood liquid and nourishes the cells.
- The Satellite Bag: An empty secondary bag connected via integrated tubing, used to transfer plasma after centrifugation.
- Ultra-Sharp 16G Needle: Silicone-coated for a smooth, “ouch-less” venipuncture experience for the donor.
- Biocompatible PVC: Medical-grade, flexible plastic that is “platelet-friendly” and resistant to breakage during high-speed spinning.
- Tamper-Proof Ports: Sealed entry points for transfusion sets to ensure the blood remains sterile from donor to recipient.
How It Works
The Double Blood Bag operates on the principle of a Closed System. By keeping the bags connected, you eliminate the risk of outside air or bacteria entering the blood.
- Collection: Blood is drawn into the primary bag and mixed with the anticoagulant.
- Centrifugation: The entire double bag set is placed in a large centrifuge. The spinning force pushes the heavier red blood cells to the bottom and leaves the lighter, liquid plasma at the top.
- Transfer: Using a plasma extractor (a manual or automated press), the clear plasma is squeezed through the connecting tube into the satellite bag.
- Sealing: The tubing is sealed and cut, leaving you with one bag of concentrated red cells and one bag of plasma.
How to Use
- For use by trained medical professionals only:
- Preparation: Verify the donor’s details and inspect the bag for any leaks or discoloration of the anticoagulant.
- Venipuncture: Perform a sterile prep of the donor’s arm and insert the 16G needle.
- Collection: Allow the bag to fill to the 450ml mark. Use a blood scale or mixer to ensure the anticoagulant is distributed evenly.
- Stripping: Use a tube stripper to push the blood in the tubing into the bag to mix it with the preservative.
- Processing: Place the bags in the centrifuge to separate components, then seal and separate the satellite bag using a heat sealer.
Frequently Asked Questions (FAQs)
Why 450ml?
450ml (plus or minus 10%) is the internationally recognized standard for a “unit” of blood. It is enough to be therapeutic for a patient while remaining safe for a healthy donor to give.
What is CPDA-1?
It is a preservative. Citrate prevents clotting, Phosphate acts as a buffer, Dextrose provides energy for the cells, and Adenine helps the red cells maintain high energy levels so they live longer (up to 35 days).
Can the bags be reused?
Absolutely not. These are single-use, sterile devices. Once the blood is collected and transfused, the bags are disposed of as biohazardous waste.
Conclusion: Why Choose Our Double Blood Bags?
In a medical emergency, you cannot afford a bag that leaks or a needle that causes donor discomfort. Our 450ml Double Blood Bags are engineered for reliability. The high-clarity PVC allows for easy visual inspection, and the precision-engineered tubing ensures a seamless transfer of components.
By investing in high-quality double bags, your facility can turn one donation into two life-saving treatments. Maximize your blood bank’s efficiency and ensure the highest safety standards for your patients. Order your supply of 450ml Double Blood Bags today.
Disclaimer: This product is a medical device intended for use by qualified healthcare personnel only. Proper storage and temperature control (2°C to 6°C for red cells) must be maintained.
