Biopsy: It is the abbreviation of biopsy, which refers to the technology of removing diseased tissue from the patient's body by cutting, clamping or puncturing for pathological examination in response to the needs of differential diagnosis and treatment. Endoscopic biopsy is inseparable from biopsy forceps. Biopsy forceps are also one of the most commonly used consumables by endoscopists.
There are many types of endoscopic biopsy forceps, including standard type, side-opening type, head-end needle type, round cup-shaped, toothed cup-shaped, etc. It is mainly connected by laser welding. Laser welding can be achieved by continuous or pulsed laser beam. The laser radiation heats the surface to be processed, and the surface heat diffuses to the inside through heat conduction. By controlling the laser parameters such as the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. The energy conversion mechanism is completed through the "small hole" structure. Once the thread of the biopsy forceps is broken, our ordinary welding cannot repair it, and metal barbs will be formed. In recent years, most biopsy forceps have adopted a rigid four-bar structure, making the use of biopsy forceps more convenient.
The key to using biopsy forceps lies in the mastery of hand strength. Many people are accustomed to using the ring finger, middle finger, index finger and thumb to cooperate with the use of biopsy forceps. The biopsy forceps should be used with moderate strength during use, and it is forbidden to use too much force when opening and closing. This will not only fail to clamp the diseased tissue well, but also easily damage the biopsy forceps. The maximum tensile strength is 10kg, and the upper and lower stop points are clear, which conforms to the doctor's usage habits; it is produced in a sterile workshop, and strictly sterile testing is carried out before leaving the factory. The sterile packaging is ready for use after opening the bag. One person has one forceps, which completely eliminates cross infection and is safe and convenient.