Breathable residual-limb socket system

Patent metadata

Field	Value
Publication number	US-11324612-B2
Application number	US-202017025008-A
Country	US
Kind code	B2
Filing date	Sep 18, 2020
Priority date	Sep 20, 2019
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A liner defines a pouch, an opening, a cup, and a first ring positioned on the pouch distal to the opening. The pouch is air-permeable and defines an internal volume for receiving a residual limb. The opening defined by the pouch provides access to the internal volume. The cup is air-impermeable and is positioned on the pouch distal to the opening. The liner is combined with an adapter for connecting a residual limb to a prosthetic limb. The adapter has a socket for receiving the cup, at least one hole positioned within the socket for drainage therefrom and sleeve extending from the socket and surrounding a central space. The adapter also has at least one vent positioned in the sleeve and overlies the air permeable material.

First claim

What is claimed is:

1. A liner adapted to receive a residual limb, said liner comprising:
a pouch defining an internal volume for receiving said limb;
an opening defined by said pouch providing access to said internal volume;
a seam defining a split in said pouch, said split extending from said opening;
a closure positioned along said seam, said closure comprising a zipper;
a cup positioned on said pouch distal to said opening, said cup being air-impermeable; and
a first ring seal attached to said pouch and surrounding said cup.

2. The liner according to claim 1 , further comprising a second ring seal surrounding said cup, said second ring seal being in spaced apart relation to said first ring seal.

3. The liner according to claim 2 , wherein said second ring seal is positioned farther from said opening than said first ring seal.

4. The liner according to claim 3 , further comprising a plurality of apertures positioned in said cup, said apertures being surrounded by said second ring seal.

5. The liner according to claim 2 , wherein said second ring seal is oriented parallel to said first ring seal.

6. The liner according to claim 1 , wherein said pouch comprises an air-permeable material.

7. The liner according to claim 1 , further comprising a plurality of apertures positioned in said cup.

8. In combination, a liner and an adapter, said liner adapted to receive a residual limb, said adapter for connecting said liner to a prosthetic, said liner comprising:
a pouch defining an internal volume for receiving said limb;
an opening defined by said pouch providing access to said internal volume;
a cup positioned on said pouch distal to said opening, said cup being air-impermeable;
a first ring seal attached to said pouch and surrounding said cup,
said adapter comprising:
a socket for receiving said cup, said socket engaging said first ring seal;
at least one hole positioned within said socket for drainage therefrom; and
a sleeve extending from said socket and surrounding a central space, at least one vent being positioned in said sleeve.

9. The combination according to claim 8 , further comprising a second ring seal surrounding said cup, said second ring seal being in spaced apart relation to said first ring seal, said socket engaging said second ring seal.

10. The combination according to claim 9 , wherein said second ring seal is oriented parallel to said first ring seal.

11. The combination according to claim 10 , wherein said second ring seal is positioned farther from said opening than said first ring seal.

12. The combination according to claim 8 , wherein said pouch comprises an air-permeable material.

13. The combination according to 12 , wherein said at least one vent overlies said air-permeable material.

14. The combination according to claim 8 , further comprising a plurality of apertures positioned in said cup, said apertures being surrounded by said second ring seal, said apertures facing said at least one hole.

15. The combination according to claim 8 , further comprising an interface to said prosthetic, said interface is attached to a distal end of said adapter.

16. In combination, a liner and an adapter, said liner adapted to receive a residual limb, said adapter for connecting said liner to a prosthetic, said liner comprising:
a pouch defining an internal volume for receiving said limb;
an opening defined by said pouch providing access to said internal volume;
a cup positioned on said pouch distal to said opening, said cup being air-impermeable;
a first ring seal attached to said pouch and surrounding said CUD;
said adapter comprising:
a socket for receiving said cup, said socket engaging said first ring seal;
at least one hole positioned within said socket for drainage therefrom;
a plurality of apertures positioned in said cup, said apertures facing said at least one hole;
a sleeve extending from said socket and surrounding a central space; and
an interface to said prosthetic, said interface being attached to a posterior surface of said sleeve.

17. The combination according to claim 16 , further comprising an interface to said prosthetic, said interface being attached to a distal end of said adapter.

18. In combination, a liner and an adapter, said liner adapted to receive a residual limb, said adapter for connecting said liner to a prosthetic, said liner comprising:
a pouch defining an internal volume for receiving said limb;
an opening defined by said pouch providing access to said internal volume;
a cup positioned on said pouch distal to said opening, said cup being air-impermeable;
a first ring seal attached to said pouch and surrounding said CUD;
said adapter comprising:
a socket for receiving said cup, said socket engaging said first ring seal;
at least one hole positioned within said socket for drainage therefrom; and
a sleeve extending from said socket and surrounding a central space; and
an interface to said prosthetic, said interface being attached to a posterior surface of said sleeve.

Assignees

• Us Gov Veterans Affairs
• Us Gov Veterans Affairs

Inventors

• Hansen Andrew H
• Nickel Eric A
• Slater Billie Caris Savvas
• Fairhurst Stuart R
• Leestma Jennifer

Classifications

• A61F2002/7837

  Sleeves for attaching or protecting, i.e. open ended hoses · CPC title

• A61F2002/802

  Suction sockets, i.e. utilizing differential air pressure to retain the prosthesis on the stump · CPC title

• 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

• A61F2002/807

  having a vacuum reservoir chamber · CPC title

• A61F2002/7893

  using slide fasteners, e.g. zippers · CPC title