sprøyte

Sprøyte is a medical instrument used to inject liquids into the body or withdraw fluids. A typical syringe consists of a cylindrical barrel that holds the liquid, a plunger that creates suction or pressure, and a tip that connects to a needle or a nozzle. Most modern syringes are disposable and made of plastic, though glass versions exist in some settings. The needle is a separate component with a hollow bore that enables fluid transfer, and many syringes use a Luer slip or Luer lock connection to secure the needle.

Sizes and variants vary widely. Small insulin syringes are designed for subcutaneous injections and have fine gauges, while tuberculin or 1 mL syringes are used for precise dosing. Larger syringes (5 mL, 10 mL, up to 60 mL) are used for drawing fluids or administering larger volumes. Needle gauges typically range from about 18 to 27; thinner gauges are used for less painful injections. Safety variants include syringes with retractable needles or needle guards to reduce the risk of needlestick injuries.

Uses encompass vaccination, administration of medications, drawing blood or other fluids for testing, and various laboratory applications. In medical practice, syringes are typically sterile and designed for single use. After use, they should be disposed of in a designated sharps container to prevent injury and contamination. Reuse of syringes for different patients is strongly discouraged and often prohibited by regulations.

Handling and safety guidelines emphasize maintaining sterility before use, avoiding contamination, and preventing needle-stick injuries. Proper disposal in appropriate containers is essential, and healthcare workers receive training on correct assembly, dosing, and administration techniques to ensure patient safety.