Probes and trocars are surgical instruments used in various medical procedures. Probes are slender, rod-shaped instruments used to examine or measure body cavities, wounds, or organs. They may be used to locate foreign bodies, assess the depth of a wound, or determine the extent of a tumor. Trocars are sharp, pointed instruments used to pierce the body wall and gain access to the body cavity. They are commonly used in laparoscopic surgery to create a small incision through which other instruments can be inserted. Trocars can be designed to accommodate various laparoscopic devices and can be used with minimal pressure to gain access to the patient's body. They are available in a variety of sizes and can be made of high-quality surgical stainless steel. Both probes and trocars are essential tools in many surgical procedures, designed to provide safe and effective access to the body cavity.