Hemodialysis uses a special filter called a dialyzer that functions as an artificial kidney to clean your blood. The dialyzer is a canister connected to the hemodialysis machine.
seat noun (FURNITURE) A2 [ C ] a piece of furniture or part of a train, plane, etc. that has been designed for someone to sit on: Chairs, sofas and benches are different types of seat. Please have/take a seat (= sit down). A car usually has a driver's seat, a front/passenger seat and back/rear seats.
verb (used without object), sat or (Archaic) sate; sat or (Archaic) sitten; sitting. 1. to rest with the body supported by the buttocks or thighs; be seated. 2. to be located or situated: The house sits well up on the slope. 3. to rest or lie (usually followed by on or upon): An aura of greatness sits easily upon him.