Key components of laparoscopic equipment system
Basic laparoscopic equipment necessary for any laparoscopic procedure includes: endoscope, camera, light source, video monitor, inflator, trocar, and surgical instruments.
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A trocar is a device consisting of a metal or plastic tip, a hollow tube called a cannula, and a seal. During laparoscopic surgery, a trocar is placed through the abdomen and an adequate incision is made for this. The trocar is then used as a conduit for the subsequent introduction and retrieval of the camera and laparoscopic hand instruments such as scissors, graspers, staplers, etc. Trocars are also used to suck air or liquid from organs in the body through a suction tube.
fiber optic cable
A flexible fiber optic cable connects an external light source to the endoscope/laparoscope to illuminate the area to be examined and operated on.
Laparoscope/Telescope
The components of a laparoscope are the beam of light, fiber optics, lens system, lens column, shaft carrying the lens column, proximal lens assembly, and eyepiece.
Light Post - The connection point where the fiber optic cable from the light source connects to the scope, passing the light.
Fiber Optics - Glass fibers carry the light from the light post to the far end of the range, closer to the organ.
Lens Column – A series of glass rod lenses and spacers that transmit the image.
Shaft – stainless steel tube that houses the lens chain and fiber optics.
Objective Lens System - A set of lenses, windows and/or prisms at the far end of the range used to collect the image. Distal objectives are manufactured with an angular range of 0° to 120°, which allows the operator to see areas that might otherwise not be visible. The most common are 0 0 and 30 0.
Eyepiece Assembly – The focusing lens of the scope located near the viewing end of the scope.
Eyepiece - The eyepiece is located at the proximal end. The viewing end of the scope that contains the magnifying glass. Images can be viewed through an oscilloscope, or an eyepiece can be attached to the camera coupler to view images on an external monitor.
The telescope can be 0.0, 30.0 or 45.0, with a diameter of 10mm and a length of 33cm. The 30 0 range is better than 0 0 because it provides a larger viewing range.
