A hollow metal or plastic tube through which materials can be aspired.
A tube with a trocar or blunt needle inside, inserted into the body to introduce fluids.
Flexible tube inserted into a cavity for transferring fluids or other materials into or out of it (e.g., as in amniocentesis to withdraw amniotic fluid).
A hollow tube that can be inserted into a body cavity, such as a blood vessel or the bladder. A cannula usually contains a sharp, pointed, solid core called a trocar that eases insertion. Cannulas are used to draw off fluid (or fat, in the case of liposuction) or to give medication.
A tube for insertion into the body, designed to fit tightly round a trocar — a sharp, pointed instrument which is withdrawn from the cannula after insertion, so that fluid may run through the latter.
A tube or sheath enclosing a trocar; the tube allowing the escape of fluid after withdrawal- of the trocar from the body.
A hollow tube inserted into a cavity to act as a conduit for the transportation of fluids.
A sleek and rounded tube, characterized by its blunt tip, is carefully inserted into a blood vessel, lymphatic vessel, or body cavity for the purpose of introducing or extracting fluids.
Cannulas find application in diverse medical procedures such as blood transfusions, intravenous infusions, and the drainage of pleural effusions (fluid accumulation around the lungs). In cases where continuous fluid testing or administration is necessary, a cannula may remain inserted for an extended period of several days.
A surgical tool, typically a tube that encases a trocar, used to penetrate a cyst. Afterward, the trocar is removed, leaving the cannula in place to allow fluid to drain from the cyst. It is also referred to as a canula.