公开(公告)号：US20240050246A1

公开(公告)日：2024-02-15

申请号：US18268255

申请日：2021-12-17

Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Hwan CHOI ,  Sepehr RAMEZANI

IPC: A61F2/66 ,  A61B5/11 ,  A61B5/00 ,  A61F2/76

CPC classification number: A61F2/66 ,  A61B5/112 ,  A61B5/4851 ,  A61F2/76 ,  A61F2002/7635

Abstract: A method and an apparatus for enhancing operation of a leg prothesis is provided. The apparatus includes a variable stiffness module configured to be attached between a first portion and a second portion of a leg prothesis. The first portion is configured to move relative to the second portion in a first plane. The variable stiffness module defines an interior region configured to store pressurized fluid. A volume of the interior region is configured to be varied from a first volume to a second volume such that a stiffness of the variable stiffness module in the first plane is varied from a first stiffness to a second stiffness.

公开(公告)号：US20230414380A1

公开(公告)日：2023-12-28

申请号：US18021895

申请日：2021-08-18

Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Hwan CHOI

IPC: A61F2/66

CPC classification number: A61F2/6607 ,  A61F2002/607

Abstract: A method and apparatus for enhancing the operation of leg prosthesis is provided. The apparatus includes a core configured to be attached between a first portion and a second portion of the leg prosthesis. The first portion is configured to move relative to the second portion in a first plane. The core is configured to be moved from a first position to a second position relative to the leg prosthesis such that a stiffness of the core in the first plane is varied from a first stiffness to a second stiffness. The method includes the step of attaching the core between the first portion and the second portion of the leg prosthesis. The method further includes moving the first portion relative to the second portion in a first plane. The method further includes moving the core with a motor from a first position to a second position relative to the leg prosthesis such that a stiffness of the core in the first plane varies from a first stiffness to a second stiffness.

公开(公告)号：US20220265442A1

公开(公告)日：2022-08-25

申请号：US17632024

申请日：2020-08-03

Applicant: UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

Inventor： Hwan CHOI ,  Gabriel Rios CARBONELL

IPC: A61F2/60

Abstract: A method and apparatus for enhancing the operation of leg prothesis is provided. The apparatus includes a cable configured to be attached to the leg prosthesis worn by a subject to move through a plurality of gait phases. The apparatus also includes a module configured to be mounted to the leg prosthesis. The module includes a tension spring configured to engage the cable to maintain tension in the cable. The module also includes a locking mechanism configured to lock a position of the tension spring and maintain a length of the cable defined between the module and the leg prosthesis during at least one first gait phase of the plurality of gait phases. The locking mechanism is further configured to unlock the position of the tension spring to permit variation of the length of the cable during at least one second gait phase of the plurality of gait phases.