Venenkanülen

Venenkanülen, also known as intravenous cannulas or IV catheters, are medical devices used to establish venous access. They are typically made of a flexible plastic tube that is inserted into a vein, usually in the arm or hand, to allow for the administration of fluids, medications, or blood products directly into the bloodstream. The insertion process involves a needle that is initially used to puncture the vein and guide the cannula. Once the cannula is in place, the needle is withdrawn, leaving the flexible tube in the vein.

Venenkanülen come in various sizes, indicated by a gauge number, with lower numbers representing larger diameters. The choice of size depends on the intended use, such as the type of fluid to be administered or the patient's vein condition. They are essential tools in hospitals, clinics, and emergency medical settings for a wide range of treatments and diagnostic procedures. Proper insertion technique and regular monitoring are crucial to prevent complications such as infection, phlebitis (inflammation of the vein), or infiltration (leakage of fluid into surrounding tissues).

After insertion, the Venenkanüle is typically secured in place with tape or a dressing to prevent displacement. The cannula can remain in situ for a period, allowing for continuous or intermittent infusions. Regular flushing with saline solution may be performed to maintain patency. When no longer needed, the cannula is carefully removed, and pressure is applied to the insertion site to prevent bleeding.