Relief orthosis

1. A relief orthosis for use during walking or standing, comprising:

a foot part, which has a sole, a heel component and a forefoot component, the forefoot component being flexurally elastic, the heel component and forefoot component each defining portions of the sole;

a shank part, which extends away from the foot part in a proximal direction;

at least one fastening element configured to secure the relief orthosis on a user and which is arranged on at least one of the foot part and the shank part;

a longitudinal arch preform secured on the foot part and configured to provide complete relief of a calcaneus of the user during walking or standing, the longitudinal arch preform including an X-ray orientation point arranged in or on the longitudinal arch preform, wherein the X-ray orientation point comprises a metal insert;

wherein the longitudinal arch preform is configured to extend across an entire width of the foot part;

wherein the foot part is designed to be modifiable in length by adjusting a position of the forefoot component relative to the heel component.

2. The relief orthosis as claimed in claim 1 , wherein the forefoot component and the heel component are designed to be movable relative to each other and to be able to be secured on each other.

3. The relief orthosis as claimed in claim 2 , wherein the forefoot component and the heel component are mounted on each other in a longitudinal guide and can be fixed to each other via clamping elements or form-fit elements.

4. The relief orthosis as claimed in claim 2 , wherein the forefoot component and the heel component have at least one orientation marking, in order to orient the components with respect to each other.

5. The relief orthosis as claimed in claim 1 , wherein the at least one fastening element is secured movably on at least one of the foot part and the shank part.

6. The relief orthosis as claimed in claim 1 , wherein the at least one fastening element is secured on oblong holes or in recesses arranged at discrete distances from one another.

7. The relief orthosis as claimed in claim 1 , further comprising hook-and-loop fastener elements configured to be secured in several positions on the foot part.

8. The relief orthosis as claimed in claim 1 , wherein the longitudinal arch support has a shell-like construction that is configured to raise a metatarsal area of the foot.

9. The relief orthosis as claimed in claim 1 , wherein the longitudinal arch preform is secured releasably or movably on the foot part.

10. The relief orthosis as claimed in claim 1 , wherein the longitudinal arch preform is secured on the foot part via at least one hook-and-loop fastener connection, a longitudinal guide or bores or threads arranged at distances from one another.

11. The relief orthosis as claimed in claim 10 , wherein the longitudinal guide comprises a guide rail having a T-shaped cross section.

12. The relief orthosis as claimed in claim 1 , wherein the at least one fastening element is designed as a Y-shaped hook-and-loop tape.

13. The relief orthosis as claimed in claim 12 , wherein the heel component defines a plurality of recesses arranged at discrete distances from one another, wherein the at least one Y-shaped hook-and-loop tape is secured to at least one of the recesses.

14. The relief orthosis as claimed in claim 1 , wherein the relief orthosis is designed as a heel relief orthosis.

15. A relief orthosis for use during walking or standing, comprising:

a foot part having a sole, a forefoot component, a heel component, and an adjustable length, the forefoot component being flexurally elastic, and the forefoot component and heel component each defining portions of the sole;

a shank part extending away from the foot part in a proximal direction;

at least one fastening element configured to releasably connect the relief orthosis to a user, the at least one fastening element being arranged on one of the foot part and the shank part;

a longitudinal arch preform secured on the foot part and configured to provide complete relief of a calcaneus of the user during walking or standing, the longitudinal arch preform including an X-ray orientation point arranged in or on the longitudinal arch preform, wherein the X-ray orientation point comprises a metal insert, and wherein the longitudinal arch preform is configured to extend across an entire width of the foot part.

16. The relief orthosis as claimed in claim 15 , wherein the forefoot component and the heel component are configured to move relative to each other and be connected to each other.

17. The relief orthosis as claimed in claim 16 , further comprising a longitudinal guide, wherein the forefoot component and the heel component are connected to each other in the longitudinal guide and can be fixed to each other via clamping elements or form-fit elements.

18. The relief orthosis as claimed in claim 16 , wherein the forefoot component and the heel component include orientation markings to orient the forefoot and heel components with respect to each other.

19. The relief orthosis as claimed in claim 15 , wherein the at least one fastening element is adjustably connected to at least one of the foot part and the shank part.

20. The relief orthosis as claimed in claim 15 , wherein the at least one fastening element is connected to spaced apart oblong holes or recesses.

21. A relief orthosis to provide relief to a user during walking or standing, comprising:

a foot part having a sole, a forefoot component, a heel component, and an adjustable length, the forefoot component and heel component each defining portions of the sole;

a shank part, which extends away from the foot part in a proximal direction;

at least one fastening element, which is configured to secure the relief orthosis on a user and which is arranged on at least one of the foot part and the shank part;

a longitudinal arch preform secured on the foot part and configured to provide complete relief of a calcaneus of the user during walking or standing, the longitudinal arch preform including an X-ray orientation point arranged in or on the longitudinal arch preform, wherein the X-ray orientation point comprises a metal insert, and wherein the longitudinal arch preform is configured to extend across an entire width of the foot part.