Abstract
The use of new instruments for laparoscopic cholecystectomy, laparoscopic electro-dynamic tools (LEDTs), are described. The devices are driven by electrodynamic power. They consist of (1) a multifunctional bilateral rotating graduated motor speed device, which has an AC or DC electrical power supply with a switch, an electromagnetic broadband wave suppressor and different sizes of changeable ball-heads (Rotor Rosettae), (2) an oscillating motor with a microblade, (3) a reciprocating motor with a microsaw and (4) a newly designed Al Khuwaitir plastic catheter (15 cm x 2 mm in diameter) to replace the commercial Veress needle. 52 female and four male patients with biliary colic or acute obstructive cholecystitis who underwent laparoscopic electro-dynamic cholecystectomy (LEDC) were included in this study. The results show that LEDTs are safe, simple, autoclavable, economical, efficient and ergonomic, and have no technical complications. They are unique, lightweight, and operated by the index finger in order to abolish the pressure on the surgeon's thumb.