Prosthesis for a lower limb

Patent metadata

Field	Value
Publication number	US-10874531-B2
Application number	US-201815990337-A
Country	US
Kind code	B2
Filing date	May 25, 2018
Priority date	Dec 9, 2010
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

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 fitted on or established by a support part;
a distal prosthetic part pivotally connected to the support part with a pivot joint to enable flexion or extension of the distal prosthetic part with respect to the element for receiving, the distal prosthetic part being 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;
a lever connected to the distal prosthetic part at a first connection point;
a rod connected to the support part and to the lever at a second connection point;
an absorbing system to absorb the flexion or extension efforts, the absorbing system being connected to the distal prosthetic part at a third connection point that is located distal of the first connection point and being connected to the lever at a location between the first and second connection points.

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 connection point of the absorbing system to the distal prosthetic part is arranged in alignment with or posterior of a vertical line passing through the joint.

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

10. The prosthesis according to claim 9 , wherein the rod is formed to complete 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. Prosthesis according to claim 1 , wherein the at least one bearing point is displaceably mounted on the support part.

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

16. 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.

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

18. The prosthesis according to claim 17 , wherein the lever parts are pivotally fitted to each other, and the pivot axis of the lever parts align with the pivot axis of the lever.

19. 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 is a knee joint, and the distal prosthetic part is a shank part.

20. A prosthesis for a residual limb, comprising:
an element for receiving a stump fitted on or established by a support part;
a distal prosthetic part pivotally connected to the support part with a pivot joint to enable flexion or extension of the distal prosthetic part with respect to the element for receiving;
a lever connected to the distal prosthetic part at a first connection point;
a rod connected to the support part and to the lever at a second connection point;
an absorbing system to absorb the flexion or extension efforts, the absorbing system being connected to the distal prosthetic part at a third connection point that is located distal of the first connection point and being connected to the lever at a location between the first and second connection points;
a locking device configured to lock the flexion or extension of the distal prosthetic part with respect to the element for receiving.

21. A prosthesis for a residual limb, comprising:
an element for receiving a stump fitted on or established by a support part;
a distal prosthetic part pivotally connected to the support part with a pivot joint to enable flexion or extension of the distal prosthetic part with respect to the element for receiving;
a lever connected to the distal prosthetic part at a first connection point, the lever having two lever parts, the lever parts being displaceably fitted to each other;
a rod connected to the support part and to the lever at a second connection point;
an absorbing system to absorb the flexion or extension efforts, the absorbing system being connected to the distal prosthetic part at a third connection point that is located distal of the first connection point and being connected to the lever at a location between the first and second connection points.

22. The prosthesis according to claim 21 , wherein the lever parts are pivotally fitted to each other, and the pivot axis of the lever parts align with the pivot axis of the lever.

Assignees

• Bock Healthcare Gmbh
• Ottobock Se & Co Kgaa

Inventors

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

Classifications

• A61F2/74

  fluid {, i.e. hydraulic or pneumatic} · CPC title

• A61F2002/5038

  Hinged joint, e.g. with transverse axle restricting the movement · CPC title

• A61F2/80 Primary

  Sockets, e.g. of suction type · CPC title

• A61F2002/5033

  for adjusting damping · CPC title

• A61F2002/5075

  Multiple spring systems including two or more helical springs · CPC title