Pre-bent single-hole laparoscopic instruments: Pre-bent instruments, that is,Single Port Laparoscopic traditional straight instruments are placed in a curved mold during the production process for bending. The finished products are in s-shaped, L-shaped and other shapes to meet the needs of different surgical angles. The advantage of this type of product is that it can form an "operation triangle" in the operation area,Single Port Laparoscopic and can also solve the "interference" of the handle interference;Single Port Laparoscopic the disadvantage is that there are many models and specifications, and the single-shaped instrument cannot meet the requirements of various surgical positions. As a result,Single Port Laparoscopic the device cannot pass into the body cavity,Single Port Laparoscopic but must be used in a soft type, and the softness is generally one-time use,Single Port Laparoscopic and the price is high.

Turnable wrist instrument,Single Port Laparoscopic which can control the movement of the head of the instrument according to the movement of the wrist, similar to the "Da Vinci" surgical robot model,Single Port Laparoscopic and has 7 degrees of freedom of operation, which can transfer the movement of the doctor's wrist to the head of the instrument . The rotatable wrist device can be shaped freely according to the doctor's requirements, and can be locked after being shaped,Single Port Laparoscopic that is, it becomes a rigid device.

The advantage of the rotatable wrist instrument is that it has multiple degrees of freedom, flexible operation, and at the same time can lock the angle,Single Port Laparoscopic and can enter the traditional body cavity in the straightened state. Typical products for rotatable wrist devices are the reusable rotatable wrist device series produced by "The Lancet Medical Technology" company,Single Port Laparoscopic and the disposable rotatable wrist device series produced by "Cambridge" in the United States.