Hemodialysis, commonly known as kidney dialysis, is used for patients suffering from renal failure or blood poisoning, rendering the body unable to dispose of toxic substances. In hemodialysis, blood is removed from the body and returns after the waste in the blood has been cleaned by the dialysis membrane of the dialyzer. A puncture needle is one of the commonly used medical devices to connect blood vessels in hemodialysis. This study attempts to propose several safe structures of an AV fistula to reduce the risk of needle stick injuries among nursing staff and select one of the structures for a trial production and IRB clinical trial to uncover problems for clinical use and make further improvements.