| abstract |
The present invention resolves the narrowness of the visual field in laparoscopic surgery without compromising low invasiveness. This trocar (1) has a pipe portion (11) for inserting a medical instrument into a body, and a head portion (12) provided contiguously in the upper portion of the pipe portion (11), and is installed in the abdominal wall via the pipe portion (11). The invention is provided with a camera (17) and light source (14) provided on a pipe portion end surface (13). The camera (17) and light source (14) are connected to the exterior via a cable. Because a trocar for a forceps is used, there is no need to create a new hole in the abdominal wall, and low invasiveness can be maintained. By using a trocar camera (1), a plurality of cameras (17) can be inserted into the abdominal cavity. This makes it possible to widen the visual field. Furthermore, because the camera (17) reliably photographs the tip portion of the forceps (4), important images such as the cutting position can be reliably obtained. |