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.
Something you can sit on, especially if it's a bench, stool, sofa, or chair, is a seat. Most bicycles have one seat, while many motorcycles have two seats. If your teacher invites you to Take a seat, he means Find a chair and sit in it.. There are seats in cars and airplanes, around tables, in restaurants, and in movie theaters. As a verb, seat means help someone find a place to sit, the way an usher seats audience members at a concert. Some people also use seat to mean bottom or buttocks, or the section of your pants that covers this body part.