The rapid development of surgery, minimally invasive surgery is increasing dramatically, the implementation of minimally invasive endoscopic surgery throughout the whole process requires the use of camera systems and cold light source system to successfully complete. As an indispensable part of the cold light source system, the light guide beam is equivalent to the surgeon's glasses. The connection between the light-guide beam and the lens is on the side of the lens, and the light-guide beam is easily damaged due to the need to constantly change its position during the procedure. Minimally invasive surgical items are generally more expensive, in minimally invasive surgical items, the light guide beam is the most serious loss, not only delayed surgery time, affecting the patient's early recovery, the maintenance of the light guide beam also caused a certain amount of economic loss.

Heat-shrinkable tubing is a special polyolefin material heat-shrinkable tubing, the outer layer of high-quality soft crosslinked polyolefin material and the inner layer of hot melt adhesive composite processing and become, the outer layer of material insulation corrosion, wear-resistant and other characteristics of the inner layer of the low melting point, waterproof sealing and high adhesion and other advantages. In electric power engineering, it is mostly used in the sealing and waterproofing of wire and cable branches, with the function of heat shrinkage, longer service life and stable performance compared with electrical tape, and there is also the effect of anti-aging.

Heat shrinkable tube in the light guide beam on the application of
1. Before the use of light guide beam, first according to the diameter and length of the light guide beam interface to determine the outer diameter and length of the heat shrinkable tube.
2. Determine the specification model of the heat shrinkable tube by measuring and consulting with the manufacturer.
3. Cut the heat shrinkable tubing on site according to the required dimensions of the heat shrinkable tubing obtained by measurement.
4. Sleeve the heat-shrinkable tubing at the interface between the two ends of the light-guide beam, and maintain a certain height of the light-guide beam and heat-shrinkable tubing at the interface.
5. Use the alcohol lamp to heat from the center to both sides of the heat shrinkage or from one side to the other side of the heat shrinkage in the order of heating.

The use of heat shrinkable tube effect
1. Simple operation, strong practicality, applicable to all kinds of light guide beam.
2. Firmly fixed, safe and reliable to use, in line with surgical requirements.
3. It reduces the loss of cold light guide beam, thus also reduces the economic loss.
4. The heat shrinkable casing has non-toxicity, does not produce toxic effects on the human body and the environment, in line with environmental requirements.