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  • Trocars designed to puncture the abdominal wall in order to provide access to the peritoneum and/or abdominal organs. These instruments typically consist of a manual, handheld device with a sharp pyramidal or conical strong and solid pointed rod and a proximal large handle. Abdominal trocars are usually fitted into a cannula, or sleeve; the trocar is used to pierce the skin and the abdominal wall (i.e., percutaneously) and then it is usually removed, leaving only the cannula or sleeve in place. Abdominal trocars are intended to provide access to the cavity permitting the aspiration of fluids (e.g., ascites, hydrocele); to instill medications or solutions; or to guide the placement of a cannula or sleeve (i.e., a hollow sheath) used for diagnostic, therapeutic, and/or surgical procedures. Dedicated abdominal trocars are also used in laparoscopic surgery to provide access for introduction of devices such as surgical instruments and video cameras.
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