Problem to be solved: to provide an operational pad material for preventing the drop of the X-ray contrast yarn and improving the safety.The X-ray imaging thread (2) is fixed to the surface of the pad material body (1) by the fixing thread (3), and the fixing thread (3) is sewn onto the pad material body (1) by staggered sewing, and the fixed thread (3) is fixed to the pad material body (1) by the fixing thread (3), and the fixing thread (3) is fixed to the pad material body (1) by the fixing thread (3), and the fixing thread (3) is fixed to the surface of the pad material body (1) by the fixing thread (3) In the stitch initiation region (5a) of the sewing stitch end area (5b), the feed amount of the staggered stitches is within the range of 0.25 mm or more and less than 0.75 mm, and the X-ray contrast thread (2) is disposed inside the stitches of the staggered stitches AndFeatures.X線造影糸の脱落を防ぎ、安全性を向上させた手術用パッド材を提供する。パッド材本体(1)とX線造影糸(2)とを含み、X線造影糸(2)は、固定糸(3)によってパッド材本体(1)の表面に固定されており、固定糸(3)は、千鳥縫いでパッド材本体(1)に縫着されており、固定糸(3)の縫着開始領域(5A)および縫着終了領域(5B)において、前記千鳥縫いの送り量は、0.25mm以上0.75mm未満の範囲内にあり、X線造影糸(2)は、前記千鳥縫いの縫い目の内側に配設されていることを特徴とする。
