What is the insertion angle for an indwelling needle?

An indwelling needle usually refers to an intravenous indwelling catheter, with a typical insertion angle between 15 and 30 degrees. The details are as follows:

In routine clinical practice, the insertion angle of an indwelling needle should generally be sufficiently steep to ensure accurate puncture of the target tissue or vessel, while minimizing patient pain and discomfort. Typically, a steeper angle helps the indwelling needle pass smoothly through the skin and underlying tissues, reducing tissue trauma and bleeding during insertion. Intravenous indwelling needles are suitable for patients requiring continuous, intermittent, or long-term intravenous infusion therapy. This method helps reduce the pain associated with repeated needle sticks, protects the patient's blood vessels, and improves nursing care quality. Inserting the intravenous indwelling needle at an angle of 15 to 30 degrees relative to the skin facilitates successful cannulation and reduces the risk of blood reflux. When using an intravenous indwelling needle, contact with water should be avoided, the surrounding skin should be regularly cleaned and disinfected, and prolonged retention of the catheter should be prevented to avoid secondary bacterial infections that may lead to local redness, swelling, pain, fever, and other symptoms detrimental to health.

In actual practice, healthcare professionals should select an appropriate insertion angle based on clinical requirements and experience, strictly adhering to established procedures and techniques to ensure the safety and effectiveness of the procedure. When using indwelling needles, it is essential to always follow medical advice and comply with relevant guidelines and safety protocols.