Liner for prosthesis
OwnerMichael T. Wilsoninventor
Life of this patent
Estimating the term…
Abstract
A liner for use with a prosthesis comprises an inner layer, a cushion layer, an outer layer, and a bead defining the upper edge of the liner. The bead can be disposed between the inner and outer layers and may comprise an elastomeric material of non-uniform thickness. A method for making a prosthesis liner comprises a) making a positive of the residual limb, b) constructing an inner layer on the outer surface of the positive, c) defining an upper edge of the liner, d) forming a mold that reflects the shape of the positive and the defined upper edge, e) using the mold to shape a cushion layer that has a defined upper edge, f) applying a bead along the desired upper edge of the liner, g) applying the cushion layer to the inner layer; and h) constructing an outer layer on the outer surface of the cushion layer.
Claims18
A liner for use with a prosthesis, comprising:
- an inner layer;
- a cushion layer affixed to said inner layer;
- an outer layer affixed to said cushion layer;
- and
- a bead affixed to at least one of said layers and defining the upper edge of the liner;
- wherein the bead is at least partially disposed between said inner layer and said outer layer.
A liner for use with a prosthesis, comprising:
- an inner layer;
- a cushion layer affixed to said inner layer;
- an outer layer affixed to said cushion layer;
- and
- a bead affixed to at least one of said layers and defining the upper edge of the liner, wherein the head has a non-uniform thickness.
A method for making a liner for use between a residual limb and a prosthesis, comprising:
- a) making a positive of the residual limb;
- b) constructing an inner layer on the outer surface of the positive;
- c) defining an upper edge of the liner;
- d) applying a bead along the upper edge of the liner
- e) forming a mold that reflects the shape of the positive and the defined upper edge;
- f) using the mold to shape a cushion layer that has a defined upper edge;
- g) applying the cushion layer to the inner layer;
- and
- h) constructing an outer layer on the outer surface of the cushion layer.
A liner for use with a prosthesis, comprising:
- an inner layer;
- a cushion layer affixed to said inner layer;
- an outer layer affixed to said cushion layer;
- a bead engaging said cushion layer and defining the upper edge of the liner;
- and
- wherein said bead has a non-uniform thickness.
A liner for use with a prosthesis, comprising:
- an inner layer;
- a cushion layer affixed to said inner layer;
- an outer layer affixed to said cushion layer;
- a bead engaging said cushion layer and defining the upper edge of the liner;
- and
- wherein the bead is at least partially disposed between said inner layer and said outer layer.
Dependencies are inferred from the claim text.