Prosthetic foot with removable flexible members

Patent metadata

Field	Value
Publication number	US-11446166-B2
Application number	US-201916506306-A
Country	US
Kind code	B2
Filing date	Jul 9, 2019
Priority date	Apr 11, 2014
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

A prosthetic foot can include an attachment member, at least one first brace, at least one first flexible member, an unpowered actuator, at least one second brace, and at least one second flexible member. The attachment member can include a connector configured to connect the attachment member to a user or another prosthetic device. The at least one first brace can mount to the attachment member and the at least one first flexible member can connect to the attachment member by the at least one first brace such that a force between the ground and the attachment member can be supported by the at least one first flexible member. The unpowered actuator can mount to the attachment member and the at least one second brace can mounted to the actuator. The at least one second flexible member can connect to the attachment member by the at least one second brace such that a force between the ground and the attachment member can be supported by the at least one second flexible member.

First claim

What is claimed is:

1. A prosthetic foot comprising:
an adapter member comprising a connector configured to connect the adapter member to a user or another prosthetic device;
a lower plate extending between a proximal end and a distal end;
a support member extending between and interconnecting the proximal end of the lower plate and a proximal portion of the adapter member, the support member pivotally coupled to the proximal end of the lower plate; and
a top plate assembly extending between a proximal end and a distal end, the top plate assembly including a split that extends from the proximal end to the distal end to divide the top plate assembly into at least a medial blade and a lateral blade, a distal portion of the adapter member extending through and pivotally coupled to the medial and lateral blades at the proximal end of the top plate assembly to thereby facilitate a medial-lateral and/or a twist movement of the prosthetic foot during stance when the prosthetic foot is in contact with a support surface in a standing or walking position.

2. The prosthetic foot of claim 1 , wherein the top plate assembly comprises a first plate and a second plate, the second plate disposed above the lower plate and the first plate disposed above the second plate, the first and second plates spaced apart from each other at least along a portion of their lengths, wherein a gap between the first and second plates widens at the proximal end of the top plate assembly to receive an axle pin therein that interconnects the top plate assembly and the distal portion of the adapter member.

3. The prosthetic foot of claim 1 , wherein the support member has a fixed length.

4. The prosthetic foot of claim 1 , wherein the support member comprises a mechanical actuator mechanically actuatable to adjust a length of the support member.

5. The prosthetic foot of claim 1 , wherein the support member comprises a powered actuator that is actuatable to adjust a length of the support member.

6. The prosthetic foot of claim 1 , further comprising a bottom plate extending between a heel end and a toe end, the bottom plate being disposed below the lower plate.

7. The prosthetic foot of claim 6 , wherein the toe end of the bottom plate extends distally of the distal end of the lower plate.

8. The prosthetic foot of claim 6 , wherein the distal end of the top plate assembly is generally aligned with the toe end of the bottom plate.

9. The prosthetic foot of claim 1 , further comprising a spherical bearing disposed between and pivotally coupling the distal portion of the adapter member and the proximal end of the medial and lateral blades.

10. The prosthetic foot of claim 9 , wherein the support member is pivotally coupled to the proximal end of the lower plate via a second spherical bearing.

11. A prosthetic foot comprising:
an adapter member comprising a connector configured to connect the adapter member to a user or another prosthetic device;
a lower plate extending between a proximal end and a distal end;
a support member extending between and interconnecting the proximal end of the lower plate and a proximal portion of the adapter member, the support member pivotally coupled to the proximal end of the lower plate;
a spherical bearing connected to a distal portion of the adapter member; and
a top plate extending between a proximal end and a distal end, the proximal end of the top plate curved in a C-shape and comprising an opening to receive the spherical bearing, the top plate being coupled to the spherical bearing at the proximal end of the top plate to thereby facilitate a medial-lateral and/or a twist movement of the prosthetic foot during stance when the prosthetic foot is in contact with a support surface in a standing or walking position.

12. The prosthetic foot of claim 11 , wherein the top plate comprises a first plate and a second plate, the second plate disposed above the lower plate and the first plate disposed above the second plate, the first and second plates spaced apart from each other at least along a portion of their lengths, wherein a gap between the first and second plates widens at the proximal end of the top plate to receive an axle pin therein that interconnects the top plate and the spherical bearing.

13. The prosthetic foot of claim 11 , wherein the support member comprises a mechanical actuator mechanically actuatable to adjust a length of the support member.

14. The prosthetic foot of claim 11 , wherein the support member comprises a powered actuator that is actuatable to adjust a length of the support member.

15. The prosthetic foot of claim 11 , further comprising a bottom plate extending between a heel end and a toe end, the bottom plate being disposed below the lower plate.

16. The prosthetic foot of claim 15 , wherein the toe end of the bottom plate extends distally of the distal end of the lower plate.

17. The prosthetic foot of claim 15 , wherein the top plate comprises a split that extends to the distal end of the top plate to divide the top plate into a medial portion and a lateral portion.

18. The prosthetic foot of claim 11 , wherein the support member is pivotally coupled to the proximal end of the lower plate via a second spherical bearing.

19. A prosthetic foot comprising:
an adapter member comprising a connector configured to connect the adapter member to a user or another prosthetic device;
a lower plate extending between a proximal end and a distal end;
a support member extending between and interconnecting the proximal end of the lower plate and a proximal portion of the adapter member, the support member pivotally coupled to the proximal end of the lower plate; and
a top plate assembly extending between a proximal end and a distal end and including an elongated plate folded upon itself to define a first plate and a second plate, the second plate disposed above the lower plate and the first plate disposed above the second plate, the first and second plates spaced apart from each other at least a long a portion of their lengths, wherein a gap between the first and second plates widens at the proximal end of the top assembly to receive an axle pin therein that interconnects the top plate assembly and a distal portion of the adapter member, and wherein the axle pin is configured to extend through the first plate and the second plate and couple with the distal portion of the adaptor member, and wherein the top plate assembly comprises a split dividing the top plate assembly into a medial portion and a lateral portion,
wherein the distal portion of the adapter member is disposed between and pivotally coupled to the medial and lateral portions of the top blade assembly at the proximal end of the top plate assembly to thereby facilitate a medial-lateral and/or a twist movement of the prosthetic foot during stance when a bottom surface of the prosthetic foot is in contact with a support surface.

20. The prosthetic foot of claim 19 , wherein support member comprises a mechanical actuator mechanically actuatable to adjust a length of the support member.

21. The prosthetic foot of claim 19 , wherein the support member comprises a powered actuator that is actuatable to adjust a length of the support member.

22. The prosthetic foot of claim 19 , further comprising a bottom plate extending between a heel end and a toe end, the bottom plate being disposed below the lower plate.

23. The prosthetic foot of claim 22 , wherein the toe end of the bottom plate ext

Assignees

• Oessur Iceland Ehf

Inventors

• Clausen Arinbjorn Viggo
• Andresson Bjarni
• Gunnarsson Ragnar Orn
• Lecomte Christophe Guy
• Sveinbjornsdottir Maria Gudrun
• Sandahl David
• Sverrisson Atli Orn
• Langlois David

Classifications

• A61F2002/5083

  modular · CPC title

• A61F2002/5075

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

• A61F2002/705

  Electromagnetic data transfer · CPC title

• A61F2002/5073

  Helical springs, e.g. having at least one helical spring · CPC title

• A61F2002/6671

  C-shaped · CPC title