Method for producing an adapted liner and liner

Patent metadata

Field	Value
Publication number	US-9636240-B2
Application number	US-92132609-A
Country	US
Kind code	B2
Filing date	Mar 6, 2009
Priority date	Mar 7, 2008
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

The invention relates to a method for producing an adapted liner for placement on a stump ( 1 ), particularly an amputation stump, comprising the following steps: selecting a prefabricated liner ( 3 ) as a function of the size of the stump; applying a filling compound ( 2 ) onto regions of the stump ( 1 ) that deviate from the inside contour of the prefabricated liner; and connecting the filling compound ( 2 ) to the prefabricated liner ( 3 ).

First claim

The invention claimed is:

1. A method for producing an adapted liner for placement on an amputation stump, the method comprising:
selecting a flexible prefabricated liner as a function of the size of the stump;
applying an uncrosslinked filling compound directly to a surface of the stump at regions of the stump that deviate from an inside contour of the prefabricated liner;
positioning the prefabricated liner on the stump, the uncrosslinked filling compound spreading out as the prefabricated liner is positioned on the stump;
connecting the uncrosslinked filling compound to an inner surface of the prefabricated liner by vulcanizing the uncrosslinked filling compound into a crosslinked filling compound while the prefabricated liner is positioned on the stump, the connected crosslinked filling compound and prefabricated liner forming an at least partially adapted liner.

2. The method as claimed in claim 1 , wherein the prefabricated liner is placed onto the stump after the uncrosslinked filling compound has been applied.

3. The method as claimed in claim 1 , wherein the uncrosslinked filling compound is applied to the stump in the region of scar contractions, oblique stump planes, dysmelias, amelias or concavities.

4. The method as claimed in claim 1 , wherein the prefabricated liner is made from a silicone material, polyurethane material or copolymer material, and the uncrosslinked filling compound is made from uncrosslinked silicone rubber, polyurethane or copolymer material.

5. The method as claimed in claim 1 , wherein a skin surface of the stump is isolated before the uncrosslinked filling compound is applied.

6. The method as claimed in claim 1 , wherein the prefabricated liner, with the inner face turned outward, is rolled onto the stump from the direction of the stump end.

7. The method as claimed in claim 1 , wherein the inner face of the prefabricated liner is degreased before placement.

8. The method as claimed in claim 1 , wherein the uncrosslinked filling compound connects cohesively to the prefabricated liner.

9. The method as claimed in claim 1 , wherein, after connecting the uncrosslinked filling compound to the prefabricated liner, the at least partially adapted liner is removed and mechanically worked.

10. The method as claimed in claim 1 , further comprising applying additional uncrosslinked filling compound to the at least partially adapted liner and connecting the additional uncrosslinked filling compound to the at least partially adapted liner.

11. The method as claimed in claim 1 , wherein the uncrosslinked filling compound adheres to the stump.

12. The method as claimed in claim 1 , wherein the at least partially adapted liner is insertable into a socket of a prosthetic device while mounted to the stump.

13. The method as claimed in claim 1 , wherein the prefabricated liner and the uncrosslinked filling compound comprise the same material.

14. A method for producing an adapted liner for placement on an amputation stump, the method comprising:
applying an uncrosslinked filling compound directly to a surface of the stump;
mounting a flexible prefabricated liner to the stump, the uncrosslinked filling compound being applied to the stump independent of mounting the prefabricated liner to the stump, the uncrosslinked filling compound spreading out as the liner is positioned on the stump;
connecting the uncrosslinked filling compound to an inner surface of the prefabricated liner by vulcanizing the uncrosslinked filling compound into a crosslinked filling compound while the prefabricated liner is positioned on the stump, the connected crosslinked filling compound and prefabricated liner forming an at least partially adapted liner.

15. The method as claimed in claim 14 , wherein the uncrosslinked filling compound is applied to the stump in the region of scar contractions, oblique stump planes, dysmelias, amelias or concavities of the stump.

16. The method as claimed in claim 14 , wherein the prefabricated liner comprises silicone material, polyurethane material or copolymer material, and the uncrosslinked filling compound comprises uncrosslinked silicone rubber, polyurethane or copolymer material.

17. The method as claimed in claim 14 , further comprising isolating a skin surface of the stump before the uncrosslinked filling compound is applied.

18. The method as claimed in claim 14 , further comprising rolling the prefabricated liner, with the inner face turned outward, onto the stump from the direction of the stump end.

19. The method as claimed in claim 14 , further comprising degreasing the inner face of the prefabricated liner before mounting.

20. The method as claimed in claim 14 , wherein the uncrosslinked filling compound connects cohesively to the prefabricated liner.

21. The method as claimed in claim 14 , further comprising removing and mechanically working the at least partially adapted liner after connecting the uncrosslinked filling compound to the prefabricated liner.

22. The method as claimed in claim 14 , further comprising applying additional uncrosslinked filling compound to the at least partially adapted liner and connecting the additional uncrosslinked filling compound to the at least partially adapted liner.

Assignees

• Reinelt Stefan
• Bock Healthcare Gmbh

Inventors

• Reinelt Stefan

Classifications

• A61F2/7812 Primary

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

• A61F2002/5052

  Direct moulding or reforming to the stump · CPC title

• A61F2/5046

  for designing or making customized prostheses, e.g. using templates, finite-element analysis or CAD-CAM techniques · CPC title