Hand orthosis or hand prosthesis, and system consisting of a hand orthosis or hand prothesis and counter element

A hand orthosis or hand prosthesis, comprising:

• a support part;
• at least one finger portion arranged distally on the support part, wherein the at least one finger portion is mounted pivotably relative to the support part wherein the at least one finger portion is formed segmentally from a plurality of finger parts that are mounted articulated to one another;
• a coupling rod coupled to a distal finger part of the plurality of finger parts and wherein the coupling rod is coupled to either a proximal finger part of the plurality of finger parts or to the support part, wherein the coupling rod crosses at least two joints between finger parts of said plurality of finger parts and is configured to transmit force, wherein the coupling rod is mounted in a first case on a palmar side and in a second case on a dorsal side the respect to a respective pivot axis of the at least two joints.