The supporting device (10) comprises a shell (2) which is capable of transitioning to the expanded state from a non-expanded condition, in which the shell is brought into non-expanded state, when being inserted into a delivery system and is brought into expanded state, when the heart (61) is partially enclosed. The shell consists of a braid such as a wire mesh having diamond-shaped cells. The wire mesh is made of shape memory alloy. The braid of the shell has two ends consisting of loops. Independent claims are included for the following: (1) a method of manufacturing heart function supporting device and (2) a delivery system of heart function supporting device.
