Final answer:
Endoscopic sutures are tied using specialized instruments such as endoscopic needle holders and knot pushers, with the assistance of an endoscope during minimally invasive surgeries.
Step-by-step explanation:
Endoscopic sutures, which are procedures part of minimally invasive surgeries, are usually tied using specialized instruments designed for use with an endoscope. An endoscope is a medical device consisting of a long, thin, flexible tube that has a light source and a video camera at the end. Images are transmitted through a bundle of fiber optics from within the body to a screen, allowing the surgeon to see inside the patient without making large incisions. During procedures like arthroscopic surgery, the surgeon uses the endoscope to navigate to the surgical site and perform tasks such as cutting and suturing while watching the transmitted image on a screen. For tying sutures specifically, surgeons use endoscopic needle holders and knot pushers to manipulate and secure sutures within the body's internal structures.
Endoscopic sutures are tied using a device called an endoscope. Endoscopes are used to explore the body through various orifices or minor incisions. Light is transmitted down one fiber bundle to illuminate internal parts, and the reflected light is transmitted back out through another to be observed. Surgery can be performed, such as arthroscopic surgery on the knee joint, employing cutting tools attached to and observed with the endoscope. Samples can also be obtained, such as by lassoing an intestinal polyp for external examination.