This creation is a medical wire structure that includes an insulated outer tube, a braided masking layer, a plurality of wires, a filler, and a grounding wire. The braided shielding layer is attached to the inner wall surface of the insulating outer tube； the wire is inserted in the outer insulating tube and is composed of a pair of digital wires and a pair of analog wires； the filling material is a synthetic fiber tensile wire and is disposed in the outer insulating tube The ground wire is placed between the braided shielding layer and the wire； the grounding wire is placed in the insulating outer tube and is located on one side of the wire, thereby providing a medical wire having a small overall outer diameter and being resistant to pulling.本創作係為一種醫療線材結構，包括絕緣外管、編織遮蔽層、複數導線、充填物及接地線。編織遮蔽層貼接絕緣外管的內壁面；導線穿置在絕緣外管中，並由一對數位導線及一對類比導線所組成；充填物為合成纖維抗拉線，設置在絕緣外管中並位在編織遮蔽層及導線之間；接地線穿置在絕緣外管中並位在導線的一側邊，據此提供一種整體外徑小並可抗拉扯的醫療線材。
