Implant
An implant was an artificial device placed in a lifeform.

In 2153, Lieutenant Malcolm Reed asked Doctor Phlox, "What sort of people would replace perfectly good body parts with cybernetic implants?" while reviewing the biometric data of Borg drones. ()

A micro-explosive could be placed inside an individual with or without his knowledge. ()

Types 
 Borg implant
 Audio implant
 Bionetic implant
 Occipital implant
 Cortical implant
 Cranial implant
 Microfilter implant
 Neural implant
 Ocular implant
 Parthenogenetic implant
 Artificial heart
 Prosthesis
 Subdermal implant
 Synthetic organ
 Termination implant

External link 
 
Medical equipment