Marshburn P B, Hulka J F
Department of Obstetrics and Gynecology, University of North Carolina School of Medicine, Chapel Hill.
Obstet Gynecol. 1990 Mar;75(3 Pt 1):458-60.
An irrigator-aspirator cannula (Stewart system) that may be assembled from common operating room supplies is described for use during operative laparoscopy. The unit consists of a disposable three-way stopcock inserted into a standard 5-mm suction probe. One stopcock port is connected to an irrigation fluid source and pressurized with an inflatable cuff; the other stopcock port is attached to wall suction. Flow rates were determined comparing two types of influx tubing, two different heights of the fluid source, and a range of inflatable cuff pressures. The flow rate of this system with urologic irrigation tubing at pressures of 150 mmHg was comparable to that of a commercially available irrigator-aspirator system. The instrument has been used in 15 routine and emergency operative laparoscopy cases and provides adequate aquadissection, rapid and easy maintenance of a clean operative field, smoke evacuation during laser vaporization, and atraumatic suction traction of tissues.
一种可由普通手术室用品组装而成的冲洗吸引套管针（Stewart系统）被描述用于腹腔镜手术中。该装置由一个插入标准5毫米吸引探头的一次性三通旋塞组成。一个旋塞端口连接到冲洗液源并用可充气袖带加压；另一个旋塞端口连接到墙壁吸引器。通过比较两种类型的流入管道、流体源的两种不同高度以及一系列可充气袖带压力来确定流速。该系统在150 mmHg压力下使用泌尿外科冲洗管道时的流速与市售冲洗吸引系统相当。该器械已用于15例常规和急诊腹腔镜手术病例，可提供足够的水分离、快速轻松地维持清洁的手术视野、激光汽化时的烟雾排出以及对组织的无创伤吸引牵引。
