In biopsy forceps, the core function of lubricated tubes is to reduce the frictional resistance when the biopsy forceps pass through the endoscopic biopsy channel, ensure smooth operation of the forceps body, and at the same time reduce wear on the forceps body and the channel.

The value of their specific application scenarios is as follows:

Ensuring Smooth Operation: 

Biopsy forceps need to pass through the long, thin endoscopic biopsy channel to reach the target site (mucosa of the gastrointestinal tract or respiratory tract). The lubricated tube forms a lubricating film on the outer layer of the forceps body, preventing the forceps body from getting stuck on the inner wall of the channel. This allows doctors to accurately control the opening, closing, and movement of the forceps body, improving biopsy efficiency.

Reducing Damage to Instruments and Tissues: 

On one hand, it can reduce the frictional wear of the metal forceps body of the biopsy forceps on the endoscopic channel, extending the service life of the endoscope. On the other hand, it can avoid "dragging" of the forceps body caused by high operational resistance, reduce accidental scratches on the mucosa around the channel, and lower the risk of operation-related injuries.

Adapting to Complex Operational Scenarios: 

In scenarios where the position of the biopsy forceps needs to be adjusted multiple times (such as when searching for tiny lesions) or when the endoscopic channel forms a certain angle due to the patient’s body position (such as the curved segments of the esophagus or colon), the resistance-reducing effect of the lubricated tube is more critical. It helps doctors stably complete biopsy sampling and ensure the quality of specimens.