Corson S L, Batzer F R, Gocial B, Maislin G
Philadelphia Fertility Institute, PA 19107-6096.
J Reprod Med. 1989 Apr;34(4):282-4.
A study was designed to measure the force necessary for trocar insertion before laparoscopy. A strain gauge was used to measure the force used with a reusable, pyramid-tipped trocar system sharpened at regular intervals and a disposable trocar system also with a pyramidal point and of equal diameter (10 mm). Variables studied for both groups, 50 patients each, included the type of incision made at the umbilicus; the opening and closing laparoscopic gas source pressure; the volume of gas delivered to create the pneumoperitoneum; the age, weight and height of the patient; and whether the laparoscopy was the first or a repeat. The variables were matched for both groups. The disposable device required half the force for entry required with the reusable device. Since many gynecologists are now women and thus may have less upper body strength than men do, this finding could be important for them. Further, the disposable trocar affords an operator of any size and strength greater control over the potentially dangerous trocar insertion into the abdomen since less force is required.
一项研究旨在测量腹腔镜检查前套管针插入所需的力。使用应变仪测量使用可重复使用的、每隔一定间隔磨尖的金字塔形尖端套管针系统和同样为金字塔形尖端且直径相等（10毫米）的一次性套管针系统时所施加的力。对两组各50名患者进行研究的变量包括在脐部做的切口类型；腹腔镜气腹气源的开启和关闭压力；用于建立气腹的气体输送量；患者的年龄、体重和身高；以及腹腔镜检查是首次进行还是重复进行。两组的变量进行了匹配。一次性器械插入所需的力是可重复使用器械的一半。由于现在许多妇科医生是女性，因此可能比男性上肢力量小，这一发现对她们可能很重要。此外，由于所需力量较小，一次性套管针能让任何体型和力量的操作者在将潜在危险的套管针插入腹部时更易于控制。
