The best surgical needles have the following features: ①High-quality stainless steel as the material;
Traditional medical suture needles are perforated and threaded from the side of the needle tail, so the tail is obviously thicker than the body, which is prone to cause damage to the tissue and is inconvenient to use.
Medical needles can be divided into four categories according to the shape of the needle tip:
Four elements of surgical needle: the length, diameter, curvature, and point. ①The arc of the needle determines the depth of penetration; ②The chord length of the needle determines the width of penetration;
Medical suture needles are mainly used for suturing tissues and transfixtion ligation, and are required to be made of high-quality and high-toughness stainless steel.
The selection of suture should be based on its own material characteristics and the healing needs of the surgical suture tissue to ensure that the suture tensile strength can help the tissue to recover to the self-healing. At the same time, the choice of suture has a certain relationship with the personal experience of the surgeon. Therefore, the surgeon must be familiar with the healing speed of different tissues and organs and the characteristics of various sutures, and choose the appropriate suture.
Decomposition and absorption mechanism of absorbable sutures is mainly divided into two types:
Suture thread specification (table)
It refers to any linear material used to ligate (tether) blood vessels or conjoin (suture) tissue. Its main functions are as follows:
There are many types of sutures, and there are many classification methods; it can be roughly divided into two categories, namely, the absorbable sutures and non-absorbable sutures; according to the materials, it can be divided into natural sutures and synthetic sutures, and it can be further divided into: single-strand fiber sutures and multi-strand fiber sutures.