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What is the manufacturing method of syringe?
Posted by: jeffyang ()
Date: June 19, 2024 05:40AM

The manufacturing process of syringes involves several precise steps to ensure the final product is safe, sterile, and effective for medical use. Here’s a detailed overview of the syringe manufacturing process:

1. Material Selection
Raw Materials: The primary materials used in syringe manufacturing include medical-grade polypropylene for the barrel and plunger, and stainless steel for the needle.
Quality Control: Raw materials undergo stringent quality checks to ensure they meet medical standards.
2. Component Manufacturing
Injection Molding: Syringe barrels and plungers are manufactured using injection molding machines. This process involves melting polypropylene and injecting it into molds to form the desired shapes.
Needle Production: Stainless steel needles are produced through a series of processes including cutting, grinding, beveling, and polishing to achieve sharpness and smoothness.
3. Assembly
Barrel & Plunger Assembly: The molded barrels and plungers are assembled together. Lubricants may be applied to ensure smooth movement of the plunger within the barrel.
Needle Attachment: Needles are attached to the syringe barrels either by adhesive bonding or by mechanical fitting.
4. Sterilization
Ethylene Oxide Sterilization (EtO): This method uses ethylene oxide gas to sterilize assembled syringes without damaging plastic components.
Gamma Radiation: An alternative sterilization method that uses gamma rays to eliminate microbial contamination.
5. Quality Control Testing
Leakage Test: Ensures there are no leaks in the syringe assembly.
Strength Test: Checks the mechanical strength of various components to withstand usage stress.
Needle Sharpness Test: Verifies that needles meet sharpness standards for minimal patient discomfort.
6. Packaging
After passing all quality control tests, syringes are packaged in sterile conditions to maintain their sterility until use.
7. Labeling
Each package is labeled with essential information such as batch number, expiration date, size specifications, and usage instructions.
8. Storage & Distribution
Packaged syringes are stored in controlled environments before being distributed to healthcare facilities.
By following these steps meticulously, manufacturers ensure that each syringe is safe for medical use and meets stringent regulatory requirements.

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