Adjustable seal system, seal component and method for using the same
AssigneeOssur Iceland Ehf
InventorsLinda Ros Birgisdottir, Martin Lund Storup, Johan Olof Westlund, Egill Sveinbjorn Egilsson
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Abstract
An adjustable seal system, seal component for use in the system, and method are provided for forming a sealing interface between a residual limb and a prosthetic socket. The seal component is selectively placed over the outer surface of a suspension liner including a plurality of seal bands, which the seal component may removably and securely engage.
Claims18
A seal component defining a central axis and forming external and internal surfaces, the seal component having upper and lower ends, the seal component arranged for removably securing to a suspension liner forming a liner central axis and an outer surface, the seal component comprising:
- a single unitary body formed from a polymeric material and having an open first end and a second open end defining an opening therethrough and an internal surface about the central axis and an outer surface extending generally parallel and radially spaced from the central axis, the body having at least one seal located between the open first and second ends and protruding at least in part radially outward beyond the outer surface and relative to the central axis, the at least one seal extending circumferentially about the central axis, the second end of the body defining the lower end of the seal component;
- wherein the body defines a lower portion including the second open end having a transitional geometry curving toward the central axis and the second open end forming a peripheral distal end of the seal component, the lower portion radially extending from the central axis less than the at least one seal;
- wherein the central axis of the seal component is arranged to concentrically align with the liner central axis of the suspension liner;
- a textile sleeve having a tubular form and a lower end secured to the open first end of the body, the textile sleeve being formed from an anatomical conforming textile having greater flexibility and elasticity than the body, the textile sleeve axially extending from and beyond the open first end of the body and defining an internal surface about the central axis of the seal component.
A seal component defining a central axis and forming external and internal surfaces, the seal component having upper and lower ends, the seal component arranged for removably securing to a suspension liner forming a liner central axis and an outer surface, the seal component comprising:
- a single unitary body formed from a polymeric material and having an open first end and a second open end defining an opening therethrough and an internal surface about the central axis and an outer surface extending generally parallel and radially spaced from the central axis, the body having at least one seal located between the open first and second ends and protruding at least in part radially outward beyond the outer surface and relative to the central axis, the at least one seal extending circumferentially about the central axis, the second end of the body defining the lower end of the seal component;
- a textile sleeve having a tubular form and a lower end secured to the open first end of the body, the textile sleeve being formed from an anatomical conforming textile having greater flexibility and elasticity than the body, the textile sleeve axially extending from and beyond the open first end of the body and defining an internal surface about the central axis of the seal component;
- wherein the at least one seal extends upwardly from a lower portion of the body, and the at least one seal overlaps an upper portion of the body, the at least one seal including a lower pitched segment obliquely extending from the body in a first direction relative to the central axis and adapted to collapse against the upper portion;
- wherein the body defines an interior space of an upper pitched segment of the at least one seal obliquely extending from the lower pitched segment in a second direction relative to the central axis, and adapted to collapse toward the central axis and against the sleeve above a midline of the at least one seal, the midline in a non-collapsed condition of the at least one seal corresponding to an upper end of the upper portion radially opposite the lower pitched segment.
Dependencies are inferred from the claim text.