FOOT SHELL SYSTEM

Abstract

A system with a foot shell, which has a forefoot inner contour and a heel inner contour, at least two prosthetic feet, each with a forefoot region and a heel region, and at least two forefoot inserts that can be positioned at the forefoot region of at least one prosthetic foot, and/or at least two heel inserts that can be positioned at the heel region of at least one prosthesis region, wherein each prosthetic foot has an outer contour of the forefoot with at least one forefoot insert positioned at its forefoot region, which is adapted to the forefoot inner contour of the foot shell, and/or that each prosthetic foot with at least one heel insert positioned at its heel region has a heel outer contour which is adapted to the heel inner contour of the foot shell.

Claims

1. A system comprising: a foot shell, which has a forefoot inner contour and a heel inner contour; at least two prosthetic feet, each with a forefoot region and a heel region; at least one of two or more forefoot inserts that can be positioned at the forefoot region of at least one prosthetic foot, or at least two heel inserts that can be positioned at the heel region of at least one prosthesis region; wherein at least one of each prosthetic foot has an outer contour of the forefoot region with at least one forefoot insert positioned at the forefoot region, the outer contour being adapted to the forefoot inner contour of the foot shell, or each prosthetic foot with at least one heel insert positioned at its heel region has a heel outer contour which is adapted to the heel inner contour of the foot shell.

2. The system according to claim 1, wherein at least one of the forefoot outer contour is adapted to the forefoot inner contour in such a way that the prosthetic foot is supported medially and laterally on the foot shell by the forefoot insert positioned on its forefoot region, or the heel outer contour is adapted to the heel inner contour in such a way that the prosthetic foot is supported medially and laterally on the foot shell by the heel insert positioned on its heel region.

3. The system according to claim 1, wherein at least one of the forefoot outer contour is adapted to the forefoot inner contour in such a way that the prosthetic foot is supported frontally on the foot shell by the forefoot insert positioned on its forefoot region, or the heel outer contour is adapted to the heel inner contour in such a way that the prosthetic foot is supported on the foot shell at the rear by the heel insert positioned on its heel region.

4. The system according to claim 1, wherein at least one of the forefoot outer contour, at least in sections, corresponds to the forefoot inner contour, or the heel outer contour, at least in sections, corresponds to the heel inner contour.

5. The system according to claim 1, wherein at least one of the forefoot inserts or the heel inserts can be attached to at least one of the respective prosthetic foot or in the foot shell.

6. The system according to claim 1, wherein at least one of the heel inserts or the forefoot insert exhibit different degrees of at least one of hardness, elasticity or flexibility.

7. The system according to one of the preceding claims, characterized in that claim 1, wherein at least one forefoot insert comprises several articulated elements.

8. The system according claim 1, wherein at least one forefoot insert comprises at least one of at least one actuator, at least one deceleration element, or at least one sensor.

9. The system according to claim 1, wherein the heel inserts of the system have different heel heights.

10. The system according to claim 1, wherein the system comprises at least one overall insert, formed of a forefoot insert and a heel insert, which are designed to be single-piece.

11. The system according to claim 10, wherein the system comprises several overall inserts.

12. A system comprising: a foot shell having a forefoot inner contour and a heel inner contour; at least two prosthetic feet, each having a forefoot region and a heel region, the forefoot region having an outer contour; at least one of two forefoot inserts positioned at the forefoot region of at least one of the prosthetic feet, or at least two heel inserts positioned at the heel region of at least one of the prosthetic feet; wherein at least one of each prosthetic foot has at least one forefoot insert positioned at the forefoot region, the outer contour being adapted to the forefoot inner contour of the foot shell, or each prosthetic foot with at least one heel insert positioned at its heel region has a heel outer contour which is adapted to the heel inner contour of the foot shell.

13. The system according to claim 1, wherein at least one of the forefoot outer contour is adapted to the forefoot inner contour in such a way that the prosthetic foot is supported medially and laterally on the foot shell by the forefoot insert positioned on its forefoot region, or the heel outer contour is adapted to the heel inner contour in such a way that the prosthetic foot is supported medially and laterally on the foot shell by the heel insert positioned on its heel region.

14. The system according to claim 1, wherein at least one of the forefoot outer contour is adapted to the forefoot inner contour in such a way that the prosthetic foot is supported frontally on the foot shell by the forefoot insert positioned on its forefoot region, or the heel outer contour is adapted to the heel inner contour in such a way that the prosthetic foot is supported on the foot shell at the rear by the heel insert positioned on its heel region.

15. The system according to claim 1, wherein at least one of the forefoot outer contour, at least in sections, corresponds to the forefoot inner contour or the heel outer contour, at least in sections, corresponds to the heel inner contour.

16. The system according to claim 1, wherein at least one of the forefoot inserts or heel inserts can be at least one of attached to the respective prosthetic foot or positioned in the foot shell.

17. The system according to claim 1, wherein at least one of the heel inserts or forefoot insert exhibit different degrees of at least one of hardness, elasticity or flexibility.

18. The system according to claim 1, wherein at least one forefoot insert comprises several articulated elements.

19. The system according claim 1, wherein at least one forefoot insert includes at least one of at least one actuator, at least one deceleration element, or at least one sensor.

20. The system according to claim 1, wherein the heel inserts of the system have different heel heights.

Description

[0027] In the following, some examples of embodiments of the present invention will be explained in more detail by way of the attached figures: They show

[0028] FIG. 1 the schematic sectional representation through a part of a system according to a first example of an embodiment of the present invention,

[0029] FIG. 2 the schematic sectional representation through a part of another system,

[0030] FIG. 3 the schematic three-dimensional view of an overall insert,

[0031] FIG. 4 the overall insert from FIG. 3 in another view, and

[0032] FIG. 5 the schematic representation showing the operating principle of a system according to an example of an embodiment of the present invention.

[0033] FIG. 1 schematically depicts the sectional representation through a part of a system according to a first example of an embodiment of the present invention. One can see a foot shell 2, which has a forefoot inner contour 4 and a heel inner contour 6. A prosthetic foot 8 is arranged within the foot shell 2, wherein said prosthetic foot has a forefoot region 10 and a heel region 12. A forefoot insert 14 is arranged at the forefoot region 10, said insert having a forefoot outer contour that is adapted to the forefoot inner contour 4 of the foot shell 2. There is a heel insert 16 at the heel region 12 of the prosthetic foot 8, wherein the heel outer contour of said insert interacts with the heel inner contour 6 of the foot shell 2.

[0034] FIG. 2 schematically depicts a similar representation. However, a different prosthetic foot 8 is now placed within the foot shell 2, said prosthetic foot in particular having a differently shaped forefoot region 10 and a differently shaped heel region 12. However, the forefoot inner contour 4 as well as the heel inner contour 6 of the foot shell 2 correspond to the configuration shown in FIG. 1. Therefore, there is a forefoot insert 14 between the forefoot region 10 of the prosthetic foot 8 and the inner contour of the forefoot 4, said insert being different from FIG. 1. The heel insert 16 used also differs from the heel insert 16 in FIG. 1, as the inner contour of the heel insert 16 is matched to the heel region 12 of the prosthetic foot 8 used in FIG. 2. The heel outer contour of the heel insert 16 is again matched to the heel inner contour 6 of the foot shell 2. In the example of an embodiment shown, the forefoot insert 14 is designed as a single piece with the heel insert 16. A connecting element 18 extends underneath the sole of the prosthetic foot 8 and connects the two inserts to each other so that they form a common overall insert.

[0035] FIG. 3 shows such an overall insert in a schematic three-dimensional view. The connecting element 18, which connects the forefoot insert 14 with the heel insert 16, is clearly recognizable. The forefoot insert 14 features several articulated elements 20. In this way, in the example of the embodiment shown, a rolling movement can be adapted to that of a healthy foot. Between each of the individual elements 20 is a film hinge 22, which is achieved by the thinning of the material shown.

[0036] FIG. 4 depicts a top view of the overall insert from FIG. 3. In the example of an embodiment shown, the heel insert 16 has an undercut 24 to connect it to a heel region 12 of a prosthetic foot 8. The forefoot insert 14 again features the articulated elements 20, between which there are openings 26. The sensitivities and flexibility of the components and elements used are changed through these openings 26 and can thus be adapted to the individually desired properties.

[0037] FIG. 5 schematically depicts the different structures shown in the previous figures. The two different prosthetic feet 8 are each fitted with a forefoot insert 14 and a heel insert 16 before they are placed in the foot shell 2. While in the right-hand part of figure 5 the forefoot insert 14 and the heel insert 16 are two separate components, in the left-hand part of FIG. 5 they are connected via a connecting element 18 and thus form a single-piece overall insert.

REFERENCE LIST

[0038] 2 foot shell [0039] 4 forefoot inner contour [0040] 6 heel inner contour [0041] 8 prosthetic foot [0042] 10 forefoot region [0043] 12 heel region [0044] 14 forefoot insert [0045] 16 heel insert [0046] 18 connecting element [0047] 20 element [0048] 22 film hinge [0049] 24 undercut [0050] 26 opening