Prosthesis for a lower limb

Patent metadata

Field	Value
Publication number	US-9987152-B2
Application number	US-201414525007-A
Country	US
Kind code	B2
Filing date	Oct 27, 2014
Priority date	Dec 9, 2010
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

A prosthesis for a residual limb includes an element for receiving a stump fitted on or established by a support part, a distal prosthetic part, and an absorbing system. The distal prosthetic part is assembled on the support part by a pivot link forming a joint to enable flexion or extension of the distal prosthetic part with respect to the element for receiving. The absorbing system absorbs the flexion or extension efforts and is connected to the distal prosthetic part and to one of a rod or a lever that is pivotally fitted on the distal prosthetic device. The rod is mounted to the lever and to the support part.

First claim

What is claimed is:

1. A prosthesis for a residual limb, comprising:
an element for receiving a stump;
a support part connected to the element for receiving a stump and configured to transfer forces in compression and tension;
a distal prosthetic part connected to the support part with a pivot connection to form a joint to enable flexion or extension of the distal prosthetic part with respect to the element for receiving a stump;
a lever pivotally connected to the distal prosthetic part;
a rod directly connected to the lever and to the support part;
an absorbing system to absorb flexion or extension forces, the absorbing system being connected at a proximal end to the distal prosthetic part and at a distal end to the lever.

2. The prosthesis according to claim 1 , wherein the absorbing system comprises at least one of a dampening device, a spring device and an actuator device.

3. The prosthesis according to claim 1 , wherein the support part comprises one of a prosthetic shaft, a cup shaped receiving element configured to be connected with a prosthetic shaft or a liner, or an osseointegratable device.

4. The prosthesis according to claim 1 , wherein the lever comprises two lever arms on opposing sides of a pivot axis to establish a rocker, the absorbing system being fitted on a first lever arm, and the rod being fitted on a second lever arm.

5. The prosthesis according to claim 1 , wherein the lever comprises a single lever arm, the absorbing system being fitted on the lever arm spaced apart from a fitting point of the rod on the lever arm.

6. The prosthesis according to claim 1 , wherein the absorbing system or the rod are displaceably fitted on the lever.

7. The prosthesis according to claim 1 , wherein at least one of the rod, the lever, and the absorbing system has a variable length.

8. The prosthesis according to claim 1 , wherein the distal prosthetic device is hollow with an inner space in which the lever and the absorbing system are at least partially arranged.

9. The prosthesis according to claim 1 , wherein the rod at least partially covers an opening in the distal prosthetic device.

10. The prosthesis according to claim 9 , wherein the rod is formed to have an appearance of a natural limb.

11. The prosthesis according to claim 1 , wherein the joint comprises a joint axis, and the joint axis runs through the support part.

12. The prosthesis according to claim 1 , wherein the joint comprises a joint axis, and the joint axis is arranged in an area of a joint axis of a natural limb.

13. The prosthesis according to claim 1 , wherein the joint comprises a joint axis, and the joint axis is arranged proximal to a distal end of the support part.

14. The prosthesis according to claim 1 , wherein the distal prosthetic part is directly mounted on the support part at at least one bearing point, and the at least one bearing point is medially or laterally positioned on the support part.

15. Prosthesis according to claim 14 , wherein the at least one bearing point is displaceably mounted on the support part.

16. The prosthesis according to claim 1 , wherein the rod is displaceably mounted on the support part.

17. The prosthesis according to claim 1 , further comprising a locking device configured to lock the flexion or extension of the distal prosthetic part with respect to the element for receiving.

18. The prosthesis according to claim 1 , wherein the lever comprises two lever parts, the lever parts being displaceably fitted to each other.

19. The prosthesis according to claim 18 , wherein the lever parts are pivotally fitted to each other, and a pivot axis of the lever parts align with a pivot axis of the lever.

20. The prosthesis according to claim 1 , wherein the prosthesis is a prosthesis for a lower limb, the support part is for receiving a thigh stump or a thigh shaft, the joint forms a knee joint, and the distal prosthesis device is a shank part.

21. A prosthesis for a residual limb, comprising:
an element for receiving a stump;
a support part connected to the element for receiving a stump and configured to transfer forces in compression and tension;
a distal prosthetic part connected to the support part with a pivot connection to form a joint to enable flexion or extension of the distal prosthetic part with respect to the element for receiving a stump;
a lever pivotally connected to the distal prosthetic part;
a rod connected to the lever and extending to a connection point with the support part;
an absorbing system to absorb flexion or extension forces, the absorbing system being connected at a proximal end to the distal prosthetic part and at a distal end to the lever.

22. The prosthesis according to claim 21 , wherein the rod is configured to transfer forces in compression and tension between the lever and the support part.

23. The prosthesis according to claim 1 , wherein the rod is configured to transfer forces in compression and tension between the lever and the support part.

Assignees

• Bock Healthcare Gmbh

Inventors

• Chabloz Pierre
• Will Christian
• Pusch Martin
• Boiten Herman

Classifications

• A61F2002/607

  Lower legs · CPC title

• A61F2002/6854

  for locking or unlocking a joint · CPC title

• A61F2002/5009

  having two or more elastomeric blocks · CPC title

• A61F2002/502

  for adjusting length · CPC title

• A61F2002/5033

  for adjusting damping · CPC title