Knots from ancient times began to be used for various purposes both in the maritime industry and in medicine. Even now, with the advent of new technologies, doctors are tying threads when stitching the skin and tissues. Today, surgeons suture with catgut during abdominal surgery. This material slides when tying, so doctors knit knots with special clamps.
In this case, the surgical site is most often used. The fishing line must be of sufficient length to complete a double turn. First, make two half-nodes with two ends and tighten them in different directions, from the top they knit another half-node, but made in the opposite direction. Its principle is that the edges of the threads do not diverge in different directions.
The surgical unit is also called a direct double unit and is used when there is a need to tie a burden or tackle, but when performing the first unit, you have to hold it with your hand. To tie it take a conical undergrowth and leash. Its name implies the presence of two turns. This knot is tied only with a leash, because with the usual method the length of the leash must pass through a simple knot twice. To fix, you need to pull all its ends. Sometimes a triple surgical unit is used for strength.
The use of fishing line and various synthetic materials forced to develop certain skills in weaving. Any novice angler, despite the method of fishing, will certainly encounter the problem of the strength of the fishing line and knitting knots. Therefore, the experience of sailors developed over millennia is used. There are only two situations when it is necessary to knit knots: connecting the two ends of the fishing line and tying various hooks, fasteners, leashes.
Fishermen sometimes have to deal with synthetic fibers. Then traditional nodes are not used, since they are poorly held under load. In work, they are not very reliable. Therefore, their functions are performed by the surgical unit. It is also recommended to use for most cables, it holds well at the ends of any slippery materials.
A fishing surgical site is uncomplicated. They can reliably connect fishing lines of different diameters or monophilic fishing line. For example, this node is used to connect a leash with a leader (conical undergrowth). Breaking strength when using it is within 95%. This knot allows you to choose a leash for the size of the front sight.
The choice of equipment and its components must be treated responsibly. Before knitting a surgical knot, you need to remember that the knot that connects the hook to the fishing line is always a weak point. So that the fish does not break loose and does not leave with the elements of your equipment, it is important to take into account the strength of each component of the fishing rod. After all, there are no trifles on fishing. Knots play an important role here, they attach the fishing line. Before casting fishing rods, fishermen must check their strength.
We knit the knots carefully, slightly moistened before tightening. The line will be moisturized and retain its breaking strength. The disadvantage of this knot is that it is not very small in size and, when tied, forms an angle on the fishing line.