Risk Y, Ferland RJ
Women and Infants Hospital, 100 Dudley Street, Suite 6, Providence, RI 02905-3233.
J Am Assoc Gynecol Laparosc. 1994 Aug;1(4, Part 2):S30. doi: 10.1016/s1074-3804(05)80967-3.
The ultrasonically activated scalpel is an energy source which relies on mechanical, vibrational energy rather than thermal energy to incise tissue and achieve hemostasis. To determine the zone of tissue necrosis, microscopic sections were taken from the midpoint of culdotomy incisions performed during laparoscopic hysterectomy. Photomicrographs using trichrome staining technique indicate an approximately 1 mm zone of denaturation of collagen. Minimal coagulation necrosis or thermal artifact occurred. We conclude the ultrasonically activated scalpel may be used with safety in proximity to pelvic structures at risk for injury.
超声刀是一种能量源，它依靠机械振动能量而非热能来切割组织并实现止血。为了确定组织坏死区域，从腹腔镜子宫切除术中进行的阴道后穹窿切开术切口的中点取了显微切片。使用三色染色技术的显微照片显示胶原质变性区域约为1毫米。几乎没有发生凝血性坏死或热损伤。我们得出结论，超声刀在靠近有受伤风险的盆腔结构处使用可能是安全的。
