PROBLEM TO BE SOLVED: To improve an implant system, in particular a hip implant system, to allow easier handling.SOLUTION: An implant system 10, in particular a hip implant system, includes at least one sample joint head 12 comprising a spherical or substantially spherical joint surface 14, which allows clamped connection with a rasp shaft or a prosthesis stem. The at least one sample joint head comprises at least one release recess 26a, 26b disposed or formed in a region of the joint surface.