English to Chinese Medical Medical (general)

Using the supplied access needle, make a puncture at an approximately 45-degree angle cephalad through the anterior abdominal wall into the gastric lumen.

意思是针在肚皮上斜刺，进针角度与身体的冠状面呈45度，针柄是朝向头而不是脚的方向或其它方向。

怎样表达更准确？