What term describes a hollow canal that is open at both ends and runs through the length of a device?

The term that accurately describes a hollow canal that is open at both ends and runs through the length of a device is "lumen." In medical and surgical contexts, lumen refers specifically to the interior space of tubular structures, such as blood vessels or hollow organs. It is a crucial concept in understanding various instruments and devices used in surgery, as it pertains to how fluids can flow through these structures.

Lumen is distinct from related terms such as cavity or chamber, which do not necessarily imply an open channel running through an object. A cavity typically refers to a hollow space within a solid object, and a chamber can denote a larger, enclosed space that may not have both ends open. A channel may refer to a pathway, but it does not specifically denote the tubular nature or the openness at both ends, making "lumen" the most accurate term in this context.