Analysis of laparoscopic dissection skill by instrument tip force measurement

背景：当比较不同经验水平的外科医生的单次中风解剖操作时，施加在器械尖端的力存在主要差异。在训练中很难向外科医生解释合适的力，也很难让外科医生直观地确定力。我们量化的力量模式在单stroke腹腔镜解剖演习，以揭示相关的专业知识的因素。专业的外科医生利用最有效的垂直力来形成一个初始解剖点，然后转向水平方向，将周围组织与目标器官分离。测量器械尖端力有助于了解和提高腹腔镜手术解剖的安全裕度。

Background: When comparing a single stroke dissection maneuver among surgeons with differing experience levels, there are major differences in the force applied to the instrument tip. It is difficult to explain to surgeons in training the appropriate force and for the surgeons to ascertain the force intuitively. We quantified the force pattern during single-stroke laparoscopic dissection maneuvers to reveal the factors related to expertise. Expert surgeons apply the most efficient vertical forces to make an initial dissection point and then change to the horizontal direction to separate surrounding tissues from the target organ. Measuring instrument tip force could help in understanding and improving the safety margin in laparoscopic surgical dissection.