Disposable<unk>  family A<unk>  (or<unk>  is a medical or veterinary device that is made up of an awl (which may be a metal or plastic sharpened or non-bladed tip), a cannula (essentially a hollow tube), and a seal.<unk> s are placed through the abdomen during laparoscopic surgery. The<unk>  functions as a portal for the subsequent placement of other instruments, such as graspers, scissors, staplers, etc.<unk> s also allow the escape of gas or fluid from organs within the body.
Trocar
Drain 
Injection port
French catheter scale
Blood lancet
Infusion pump
ElectroCore
Vacutainer