In infrared contact coagulation the tissue is coagulated not by means of an electric current but with infrared radiation. In treatment mechanical pressure and radiation energy are applied simultaneousy. The process of electrocoagulation used to date is based on the heat of resistance (joule heat) produced when highfrequency currents flow through body tissue. This requires two electrodes – one inactive, with a large surface area and usually applied to a region on the upper leg, and one small, active, operating electrode. A basic shortcoming of this method is the adhesion of the metal electrodes to the tissue, which is particularly troublesome in the treatment of parenchymal bleeding. A further drawback is that the extent of the necrosis produced by the operation is difficult to control. In addition, the morphologically determined electrical conductivity relationship varies from re-gion to region and from patient to patient. The new infrared contact echnique eliminates these disadvantages and notably extends the range of methods for aemostasis in a number of indications.
The infrared contact coagulator consists of an infrared radiator, a rigid light guide curved at the end at which the light emerges, and a tissue contact surface or tip made from a Teflon® polymer that is transparent to infrared and does not adhere to the tissue. The infrared radiation is focussed into the light guide. A lowvoltage tungsten-halogen lamp (15 V) produces the beam in a gold-coated reflector housing.
The red light and infrared leakage radiation is allowed to escape outside through the red
lamp casing, thus preventing the coagulator from overheating and making it unnecessary
to provide an expensive cooling system. The optimal amount of energy to be transferred into
the tissue can be preset exactly by means of a timer and reproduced at all times.
The ergonomically designed applicator, fitted with a hand-operated switch and supplied with
low voltage by means of a flexible lead, enables the doctor to work in a simple and convenient
- Coagulation time only 1 - 3 seconds
- No tissue adhesion
- Precisely adjustable depth of necrosis
- Simpler and more effective than
injection treatment (proctology)
- Also suitable for blood staunching
- Various interchangeable light guides
- Safe low voltage
- No danger of explosion in the intestine
- No effect on cardiac pacemakers
- Can also be used during pregnancy
- No inactive electrode
- Can be sterilized by gas (60°C) or liquid.
Coagulator cu infrarosu, Coagulator proctologie, Coagulator dermatologie, Coagulator chirurgie