Simplified Hydrodissection Device

Abstract

The development of a simplified hydrodissection device for use during operative laparoscopy is described. The device used mechanical-pneumatic op eration, with CO, propellant gas and consists of control unit, fluid warmer system and irrigation/suction probe. The irrigation pressure is adjustable throughout a range of 100-760 mmHg and the flow rate ranges from 690 to 1,400 ml/min. The performance of the device using a commercial irrigation probe (maximal flow rate of 2,258 + 28 ml/min at 760 mm Hg pressure) is comparable to a commercial irrigation device. For suction, the wall suction system is used. The device has been used in 20 operative laparoscopy cases, and is found to be cost effective, simple to operate, having a continuous high pressure flow rate and delivering homeothermic solution. The major defect that needs further development is in the locally made irrigation probe. (Thai J Obstet Gynaecol 1994;6:129-139.)