# US 2019/0167451 A1 · Suspension liner with seal component > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0167451 A1 - Document ID: US20190167451A1 - Status: Published application - Kind: A1 - Application number: 16/273,688 - Filed: 2019-02-12 - Published: 2019-06-06 - Earliest claimed: 2011-08-22 - Assignees: Ossur Hf - Applicants: Ossur HF - Inventors: Olafur Freyr HALLDORSSON - Web page: https://patentgrep.com/patent/US20190167451A1 ## CPC - A61F 2/7812: {Interface cushioning members placed between the limb stump and the socket, e.g. bandages or stockings for the limb stump} - A61F 2002/7818: {Stockings or socks for the limb stump} - A61F 2002/785: {Pads, e.g. relief pads} - A61F 2002/802: {Suction sockets, i.e. utilizing differential air pressure to retain the prosthesis on the stump} - F04C 2270/0421: Controlled or regulated - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS ## Abstract A suspension liner is provided for use as an interface between a residual limb and a prosthetic socket. The liner has an elongate, generally conical liner body formed from at least one material segment that is at least radially elastically extensible from a relaxed non-extended condition and including proximal and distal end areas, and a seal component connected to the liner body and having an exterior surface defining at least one exterior seal protruding from the exterior surface and extending radially outwardly from the seal component relative to a longitudinal axis of the liner body. The at least one interior seal is located along an interior surface of the seal component and defines at least one blade extending obliquely toward the liner body. A portion of the seal component carrying the interior seal extends freely and is movable relative to the liner body. ## Claims ### Claim 1 A seal component for a liner having an exterior surface and a longitudinal axis, comprising: a base portion located at a distal portion of the seal component, an interior surface of the base portion arranged to be anchored circumferentially to the exterior surface of the liner; a seal wall arranged to flexibly and movably extend relative to a body of the liner, the seal wall having a thickness; and at least two seal rings radially and outwardly extending from the seal wall, each seal ring of the at least two seal rings defining distal and proximal pitched sections extending to a peak. ### Claim 2 (depends on 1) The seal component of claim 1, further comprising a distal outwardly pitched portion extending obliquely away from the base portion relative to an axis of the seal component, the axis of the seal component arranged coaxial with the longitudinal axis of the liner. ### Claim 3 (depends on 2) The seal component of claim 2, further comprising a lip extending from the base portion, the distal outwardly pitched portion and the lip extend in different directions from a pivot line. ### Claim 4 (depends on 2) The seal component of claim 2, wherein the distal outwardly pitched portion extends from a pivot line defined by the base portion whereat the interior surface of the base portion arranged to secure to the liner terminates. ### Claim 5 (depends on 3) The seal component of claim 3, wherein the distal outwardly pitched portion and the lip define a gap such that a surface of the distal outwardly pitched portion faces a surface of the lip. ### Claim 6 (depends on 3) The seal component of claim 3, wherein the distal outwardly pitched portion and the lip are generally coextensive relative to the axis of the seal component. ### Claim 7 (depends on 2) The seal component of claim 2, wherein the distal outwardly pitched portion is subtended by a proximal end of the base portion and a distal portion of the seal wall. ### Claim 8 (depends on 1) The seal component of claim 1, wherein the seal wall is adapted to be spaced apart from the exterior surface of the liner. ### Claim 9 (depends on 1) The seal component of claim 1, further comprising a proximal inwardly pitched portion at an uppermost end of the seal component extending obliquely toward the base portion relative to an axis of the seal component. ### Claim 10 (depends on 1) The seal component of claim 1, further comprising a plurality of blades extending inwardly toward an axis of the seal component from an interior surface of the seal wall, the axis of the seal component arranged coaxial with the longitudinal axis of the liner. ### Claim 11 (depends on 10) The seal component of claim 10, wherein the plurality of blades extend circumferentially from the interior surface of the seal wall. ### Claim 12 (depends on 10) The seal component of claim 10, wherein each blade of the plurality of blades has a smallest width at a distal portion and increases across a central portion to a proximal portion. ### Claim 13 (depends on 10) The seal component of claim 10, wherein each blade of the plurality of blades has a thickness closest to the interior surface of the seal wall and tapers as the blade extends toward the axis of the seal component. ### Claim 14 (depends on 13) The seal component of claim 13, wherein the thickness of the blade is greatest closest to the interior surface of the seal wall. ### Claim 15 (depends on 10) The seal component of claim 10, wherein each of blade of the plurality of blades is arranged at an oblique angle relative to the axis of the seal component. ### Claim 16 A seal component for a liner having an exterior surface and a longitudinal axis, comprising: a base portion located at a distal portion of the seal component, an interior surface of the base portion arranged to be anchored circumferentially to the exterior surface of the liner; a seal wall arranged to flexibly and movably extend relative to a body of the liner, the seal wall having a thickness; at least two seal rings radially and outwardly extending from the seal wall, each seal ring of the at least two seal rings defining distal and proximal pitched sections extending to a peak; a distal outwardly pitched portion extending obliquely away from the base portion relative to an axis of the seal component, the axis of the seal component arranged coaxial with the longitudinal axis of the liner; and a proximal inwardly pitched portion at an uppermost end of the seal component extending obliquely toward the base portion relative to the axis of the seal component; wherein the seal wall is subtended by a proximal end of the distal outwardly pitched portion and a distal end of the proximal inwardly pitched portion. ### Claim 17 (depends on 16) The seal component of claim 16, further comprising a lip extending from the base portion, the distal outwardly pitched portion and the lip extend in different directions from a pivot line. ### Claim 18 (depends on 17) The seal component of claim 17, wherein the distal outwardly pitched portion and the lip define a gap such that a surface of the distal outwardly pitched portion faces a surface of the lip, the distal outwardly pitched portion and the lip are generally coextensive relative to the axis of the seal component. ### Claim 19 (depends on 16) The seal component of claim 16, further comprising a plurality of blades extending inwardly toward the axis of the seal component from an interior surface of the seal wall and confined between the proximal end of the distal outwardly pitched portion and the distal end of the proximal inwardly pitched portion. ### Claim 20 A seal component for a liner having an exterior surface and a longitudinal axis, comprising: a base portion located at a distal portion of the seal component, an interior surface of the base portion arranged to be anchored circumferentially to the exterior surface of the liner; a seal wall arranged to flexibly and movably extend relative to a body of the liner, the seal wall having a thickness; at least two seal rings radially and outwardly extending from the seal wall, each seal ring of the at least two seal rings defining distal and proximal pitched sections extending to a peak; a distal outwardly pitched portion extending obliquely away from the base portion relative to an axis of the seal component, the axis of the seal component arranged coaxial with the longitudinal axis of the liner; a proximal inwardly pitched portion at an uppermost end of the seal component extending obliquely toward the base portion relative to the axis of the seal component, wherein the seal wall is subtended by a proximal end of the distal outwardly pitched portion and a distal end of the proximal inwardly pitched portion; a plurality of blades extending inwardly toward the axis of the seal component from an interior surface of the seal wall and confined between the proximal end of the distal outwardly pitched portion and the distal end of the proximal inwardly pitched portion; and a lip extending from the base portion, the distal outwardly pitched portion and the lip extend in different directions from a pivot line, wherein the distal outwardly pitched portion and the lip define a gap such that a surface of the distal outwardly pitched portion faces a surface of the lip, the distal outwardly pitched portion and the lip are generally coextensive relative to the axis of the seal component.