The medical devices and methods disclosed herein can be used to close a transapical entry point after a medical procedure, or various other anatomical apertures. The medical devices can include a first disc and a second disc, which can be compressed within a catheter, having a distal surface and a proximal surface. A shaft can be attached to, and extend from, the first disc. The second disc can have a hole sized such that the shaft can fit through the hole. In certain embodiments, the proximal surface of the first disc and the distal surface of the second disc can include a plurality of tissue engagement elements, such as teeth. In certain embodiments, the shaft can include a plurality of locking notches such that the second disc can be advanced only in the distal direction over the locking notches.