Adjustable seal system

Patent metadata

Field	Value
Publication number	US-10420657-B2
Application number	US-201615284731-A
Country	US
Kind code	B2
Filing date	Oct 4, 2016
Priority date	Oct 15, 2015
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

Abstract

An adjustable seal system includes a suspension liner having a liner body and an outer surface. A plurality of seal bands are located along a height of the liner body. A seal component is arranged for removably securing to the liner body. The seal component includes open upper and lower ends defining an opening therethrough and an internal surface arranged to frictionally engage at least one of the seal bands and secure on the outer surface of the liner. The seal component also includes an upper portion descending to at least one seal, and a lower portion.

First claim

The invention claimed is:

1. An adjustable seal system comprising:
a prosthetic socket having an interior wall;
a suspension liner positionable in the prosthetic socket, the suspension liner having a liner body and an outer surface, the outer surface including a plurality of seal bands located along a height of the liner body;
a seal component arranged for removably securing to the liner body, the seal component including:
open upper and lower ends defining an opening therethrough and an internal surface arranged to frictionally engage a selectable one of the seal bands and secure on the outer surface of the liner;
an upper portion descending from the upper end to a seal member; and
a seal-assist system comprising a first magnetic part associated with the seal member and a second magnetic part associated with the prosthetic socket, the seal-assist system arranged to enhance a seal formed between the seal member and the interior wall of the prosthetic socket by forcing the seal member away from the upper portion and against the interior wall of the prosthetic socket when the seal component and the suspension liner are positioned in the prosthetic socket such that during connection of the seal member and the interior wall of the prosthetic socket a gap is formed between the seal member and the upper portion.

2. The system of claim 1 , wherein the first magnetic part comprises one or more magnetic materials in the seal member.

3. The system of claim 2 , wherein the second magnetic part comprises a band member having one or more magnetic materials, and arranged for installation on an outer surface of the prosthetic socket opposite the first magnetic part.

4. The system of claim 2 , wherein the second magnetic part comprises one or more permanent magnets positioned in a wall of the prosthetic socket opposite the first magnetic part.

5. The system of claim 2 , wherein the one or more magnetic materials extend within the seal member entirely around the seal component.

6. A prosthetic system comprising:
a prosthetic socket having an interior wall;
a suspension liner positionable in the prosthetic socket, the suspension liner having a liner body and an outer surface, the outer surface including a plurality of seal bands located along a height of the liner body;
a seal component arranged for removably securing to the liner body, the seal component including:
open upper and lower ends defining an opening therethrough and an internal surface arranged to frictionally engage a selectable one of the seal bands and secure on the outer surface of the liner;
an upper portion descending from the upper end to a seal member; and
a seal-assist system comprising one or more permanent magnetic materials associated with the seal member and a magnetic part associated with the prosthetic socket, the seal-assist system arranged to enhance a seal formed between the seal member and the interior wall of the prosthetic socket by forcing the seal member away from the upper portion and against the interior wall of the prosthetic socket when the seal component and the suspension liner are positioned in the prosthetic socket, wherein the one or more permanent magnetic materials extend within the seal member entirely around the seal component.

7. The prosthetic system of claim 6 , wherein the magnetic part comprises one or more permanent magnets positioned in a wall of the prosthetic socket opposite the seal member.

8. The prosthetic system of claim 6 , wherein the magnetic part comprises a band member having one or more magnetic materials and arranged for installation on an outer surface of the prosthetic socket opposite the seal member.

9. A prosthetic system comprising:
a prosthetic socket having an interior wall;
a suspension liner positionable in the prosthetic socket, the suspension liner having a liner body and an outer surface, the outer surface including a plurality of seal bands located along a height of the liner body;
a seal component arranged for removably securing to the liner body, the seal component including:
open upper and lower ends defining an opening therethrough and an internal surface arranged to frictionally engage a selectable one of the seal bands and secure on the outer surface of the liner;
an upper portion descending from the upper end to a seal member; and

a seal-assist system comprising a first magnetic part having a resilient configuration associated with the seal member and a second magnetic part associated with the prosthetic socket, the seal-assist system arranged to enhance a seal formed between the seal member and the interior wall of the prosthetic socket by forcing the seal member away from the upper portion and against the interior wall of the prosthetic socket when the seal component and the suspension liner are positioned in the prosthetic socket such that during connection of the seal member and the interior wall of the prosthetic socket a gap is formed between the seal member and the upper portion.

Assignees

• Ossur Iceland Ehf

Inventors

• Jonsson Grimur
• Birgisdottir Linda Ros
• HELGADOTTIR Arora
• Asgrimsdottir Unnur Osp
• Egilsson Egill Sveinbjorn

Classifications

• A61F2/7812

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

• A61F2/80 Primary

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

• A61F2002/802

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

• A61F2230/0067

  conical · CPC title

• A61F2230/0069

  cylindrical · CPC title