Delivery device

A conveying device at least for conveying a fluid, comprising:

• at least one conveying space;
• at least one conveying space element that at least partly delimits the conveying space and that is rigid;
• and
• at least one elastically deformable conveying element that forms the conveying space together with the conveying space element, wherein
• at least the conveying space element and the elastically deformable conveying element together form an exchangeable unit,
• the elastically deformable conveying element is arranged on the conveying space element in an at least partly convexly curved fashion,
• the elastically deformable conveying element is spring-elastic,
• the elastically deformable conveying element automatically seeks to re-assume a basic shape following a deformation,
• the elastically deformable conveying element is connected to the conveying space element in a non-releasable manner,
• the conveying space element comprises a rigid wall that forms at least one concave recess for at least partly forming, and delimiting, the conveying space,
• the conveying space element includes an inner surface that delimits the concave recess, the elastically deformable conveying element is at least partly movable into the concave recess of the conveying space element for conveyance of the fluid,
• the elastically deformable conveying element comprises, in a load-free state of the elastically deformable conveying element, a conveying surface which, viewed in a cross section of the elastically deformable conveying element, has a maximum transverse extent that is equivalent to a maximum transverse extent of the rigid wall, viewed in a cross section of the conveying space element that extends transversely to a conveying direction of the fluid in the conveying space,
• the maximum transverse extent of the elastically deformable conveying element is formed by a length of an outline of the elastically deformable conveying element facing the conveying space element, and the maximum transverse extent of the rigid wall of the conveying space element is formed by a length of an outline of the rigid wall,
• the maximum transverse extent of the conveying surface of the elastically deformable conveying element runs transversely to the conveying direction of the fluid in the conveying space and in a plane extending perpendicular to the conveying direction, and
• the conveying surface is utilizable in a targeted fashion for a conveyance of the fluid in the conveying space and/or through the conveying space.