Prosthesis assembly with adjustable diameter socket

Patent metadata

Field	Value
Publication number	US-9603725-B2
Application number	US-201214348980-A
Country	US
Kind code	B2
Filing date	Oct 2, 2012
Priority date	Oct 6, 2011
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

The invention relates to a prosthesis assembly, comprising an outer stem ( 10 ) provided with a proximal opening ( 11 ), and at the distal end ( 12 ) thereof is provided with a connecting means ( 13 ) for fastening an additional component, and which is formed of a material that is rigid in the longitudinal extension thereof, in which at least one slit ( 14 ) extending at least partially in a longitudinal direction is inserted in order to allow deformation in a radial direction. The prosthesis assembly further comprises an inner stem ( 20 ) made of a flexible material and provided with a proximal opening ( 21 ), at least one tensioning device ( 30 ) that is affixed to the outer stem ( 10 ) and can be accessed by way of a diameter change of the outer stem ( 10 ). At least one electrode ( 40 ) is displaceably fastened to a side of the outer stem ( 10 ) that is facing the inner stem ( 20 ).

First claim

The invention claimed is:

1. A prosthetic appliance, comprising:
an outer socket, which has a proximal opening and, at a distal end thereof, a connector for fastening an additional component, the outer socket is formed from a material that is rigid in a longitudinal direction, wherein at least one slit extending at least partially in the longitudinal direction is formed in said outer socket in order to enable a deformation in a radial direction;
an inner socket, which is formed from a flexible material and has a proximal opening;
at least one tensioning appliance, which is fixed on the outer socket and operable to change a diameter of the outer socket; and
at least one electrode displaceably fastened on a side of the outer socket facing the inner socket.

2. The prosthetic appliance as claimed in claim 1 , wherein at least one area with conductive elements is provided on the inner socket, which conductive elements conduct myoelectric signals from an inner side of the inner socket to an outer side of the inner socket.

3. The prosthetic appliance as claimed in claim 2 , wherein the conductive elements are embedded in the inner socket or the at least one area is embodied as a conductive plastic.

4. The prosthetic appliance as claimed in claim 1 , wherein the inner socket is affixed to the outer socket.

5. The prosthetic appliance as claimed in claim 1 , wherein the inner socket has a closed cross section.

6. The prosthetic appliance as claimed in claim 1 , wherein the inner socket has an open distal end.

7. The prosthetic appliance as claimed in claim 1 , wherein the at least one electrode is displaceably mounted and rotatably mounted in at least one guide which is arranged or formed on the outer socket.

8. The prosthetic appliance as claimed in claim 1 , wherein the at least one tensioning appliance is embodied as tape or a belt and sets a maximum change in diameter of the outer socket.

9. The prosthetic appliance as claimed in claim 1 , wherein the tensioning appliance has a ratchet lock, a lever lock, a rotary clamping lock or a hook-and-loop lock.

10. The prosthetic appliance as claimed in claim 1 , wherein the flexible material of the inner socket is embodied to be elastic and stretchable.

11. The prosthetic appliance as claimed in claim 1 , wherein the at least one slit forms at least one segment of the outer socket that is connected at the distal end of the outer socket.

12. A prosthetic appliance, comprising:
an outer socket, comprising:
a material that is rigid in a longitudinal direction;
a distal end and a proximal end;
a first proximal opening positioned at the proximal end;
a connector positioned at the distal end, the connector being configured to connect to an additional prosthetic component; and
at least one slit formed in the material of the outer socket and extending at least partially in the longitudinal direction, the at least one slit providing at least one guide positioned on the outer socket;
wherein at least one segment of the material of the outer socket is connected at the distal end of the outer socket and movable radially to change a diameter of the outer socket;

an inner socket comprising a flexible material and a second proximal opening;
at least one tensioning member fixed on the outer socket and operable to change the diameter of the outer socket; and
at least one electrode releasably mounted to the outer socket and arranged facing the inner socket, the at least one electrode extending through the at least one guide.

13. The prosthetic appliance as claimed in claim 12 , further comprising a plurality of conductive elements positioned on at least one area of the inner socket, wherein the plurality of conductive elements are configured to conduct myoelectric signals from an inner side of the inner socket to an outer side of the inner socket.

14. The prosthetic appliance as claimed in claim 13 , wherein the plurality of conductive elements are embedded in the inner socket or the at least one area is embodied as a conductive plastic.

15. The prosthetic appliance as claimed in claim 12 , wherein the inner socket is connected to the outer socket.

16. The prosthetic appliance as claimed in claim 12 , wherein the inner socket has a closed cross section.

17. The prosthetic appliance as claimed in claim 12 , wherein the inner socket has an open distal end.

18. The prosthetic appliance as claimed in claim 12 , wherein the at least one electrode is at least one of displaceably mounted and rotatably mounted in the at least one guide.

19. The prosthetic appliance as claimed in claim 12 , wherein the at least one tensioning member is embodied as tape or a belt and defines a maximum change in diameter of the outer socket.

20. The prosthetic appliance as claimed in claim 12 , wherein the at least one tensioning member comprises a ratchet lock, a lever lock, a rotary clamping lock, or a hook-and-loop lock.

21. The prosthetic appliance as claimed in claim 12 , wherein the at least one slit permits deformation of the outer socket in the radial direction.

22. The prosthetic appliance as claimed in claim 12 , wherein the at least one electrode is fastened to the outer socket.

Assignees

• Bock Healthcare Gmbh

Inventors

• Förster Heiko
• Heublein Christian

Classifications

• A61F2002/5084

  telescopic · CPC title

• A61F2002/502

  for adjusting length · CPC title

• A61F2002/7862

  Harnesses or straps · CPC title

• A61F2/54

  Artificial arms or hands or parts thereof · CPC title

• A61F2/7812

  Interface cushioning members placed between the limb stump and the socket, e.g. bandages or stockings for the limb stump · CPC title