Arthroscopic approach cannula is an instrument used in orthopedic arthroscopic surgery. Its main function is to provide a channel for arthroscopy and related surgical instruments to enter the joint cavity, while reducing the damage to the normal tissues around the joint, maintaining perfusion fluid circulation, preventing liquid extravasation, facilitating the replacement of intraoperative instruments and improving surgical efficiency.
Structural composition: usually composed of catheter, shell, connector and other parts. The catheter is the channel through which surgical instruments are inserted, the housing is used to fix the catheter, and the connector is used to connect other instruments. There are also some arthroscopic access cannulas that consist of a channel cannula body and a channel cannula washer.
Type division: according to joint parts, it can be divided into knee arthroscopic approach casing, shoulder arthroscopic approach casing, hip arthroscopic approach casing, etc. According to the outer diameter size, there are 3.5mm casing, 4.0mm casing, etc. According to the material, it can be divided into stainless steel casing, ceramic casing, silicone casing, etc.
Material characteristics: Arthroscopic approach cannula is usually made of polytetrafluoroethylene (PTFE) and other materials, with low friction coefficient and good biocompatibility, which can reduce the damage and irritation to the joint.
Usage: Generally, a small opening is cut on the joint surface, then the arthroscopic approach cannula is inserted into the joint cavity, and then the arthroscope and other surgical instruments are introduced through the cannula for operation.
Product specification: The management category of arthroscopic access cannula is the second medical device, which is usually provided in a sterile state, sterilized by ethylene oxide, and single-use.
