# US 2021/0330484 A1 · Posterior upright of ankle foot orthosis and ankle foot orthosis > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0330484 A1 - Document ID: US20210330484A1 - Status: Published application - Kind: A1 - Application number: 16/490,676 - Filed: 2018-12-14 - Published: 2021-10-28 - Earliest claimed: 2018-12-14 - Assignees: Sawamura Prosthetics and Orthotics Service Co., Ltd.; Therapy Co., Ltd. - Applicants: Sawamura Prosthetics and Orthotics Service Co., Ltd.; Therapy Co., Ltd. - Inventors: Taichi Sano; Katsuhiro Konishi - Web page: https://patentgrep.com/patent/US20210330484A1 ## CPC - A61F 5/0111: {for the feet or ankles} - A61F 5/0113: {Drop-foot appliances} - A61F 2/66: Feet; Ankle joints - A61F 5/01: Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces - A61H 3/00: Appliances for aiding patients or disabled persons to walk about (apparatus for helping babies to walk A47D13/04 {; applying electrical currents by contact electrodes for stimulating motor muscles, e.g. walking assistance A61N1/36003}) - A61F 2002/608: {Upper legs} - A61F 2005/0179: {with spring means} - 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) - A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N) ## Abstract A posterior upright of an ankle foot orthosis with adjustable degree of bending. A posterior upright 4 of an ankle foot orthosis 1 is provided between a heel posterior portion of a footrest portion 2 on which a foot portion is placed and a lower leg mounting portion 3 mounted on a lower leg portion below a knee. In the posterior upright 4, a plurality of FRP sheets 5a to 5c are laminated, and an upper end portion and a lower end portion of the FRP sheets are joined by heat sealing. An upper end portion 4A is a portion connected to the lower leg mounting portion 3 and a lower end portion 4B is connected to the footrest portion 2. An intermediate portion between the upper end portion 4A and the lower end portion 4B has +gaps S1 and S2 between the FRP sheets 5a to 5c. ## Claims ### Claim 1 A posterior upright of an ankle foot orthosis that is provided between a footrest portion on which a foot portion is placed and a lower leg mounting portion mounted on a lower leg portion below a knee, wherein a plurality of FRP sheets are laminated, and an upper end portion and a lower end portion of the FRP sheets are joined by heat sealing, the upper end portion is a portion connected to the lower leg mounting portion, and the lower end portion is a portion connected to a heel posterior portion of the footrest portion, and an intermediate portion between the upper end portion and the lower end portion has a structure having a gap between the FRP sheets. ### Claim 2 (depends on 1) The posterior upright of an ankle foot orthosis according to claim 1, wherein the lower end portion is provided with a screw hole so as to be screwed to the heel posterior portion of the footrest portion. ### Claim 3 (depends on 1) The posterior upright of an ankle foot orthosis according to claim 1, wherein the upper end portion is provided with a screw hole so as to be screwed to the lower leg mounting portion. ### Claim 4 (depends on 2) The posterior upright of an ankle foot orthosis according to claim 2, wherein the screw holes so as to be screwed are arranged vertically, the screw holes being an upper hole and a lower hole through which a screw is inserted when the screw is attached, and the upper hole is an arc-shaped long hole around the lower hole. ### Claim 5 (depends on 1) The posterior upright of an ankle foot orthosis according to claim 1, wherein each of the FRP sheets is a CFRP sheet. ### Claim 6 (depends on 1) The posterior upright of an ankle foot orthosis according to claim 1, wherein the lower end portion has a flat plate shape or a bifurcated shape whose lower end is divided. ### Claim 7 (depends on 1) An ankle foot orthosis, comprising: a footrest portion on which a foot portion is placed; a lower leg mounting portion mounted on a lower leg portion below a knee; and a posterior upright that is provided between the lower leg mounting portion and the footrest portion and extends upward from a heel posterior portion to be connected to the lower leg mounting portion, wherein the posterior upright is the posterior upright according to claim 1. ### Claim 8 (depends on 7) The ankle foot orthosis according to claim 7, wherein a wedge-shaped block is sandwiched between a screwing portion of the posterior upright and the footrest portion or the lower leg mounting portion. ### Claim 9 (depends on 3) The posterior upright of an ankle foot orthosis according to claim 3, wherein the screw holes so as to be screwed are arranged vertically, the screw holes being an upper hole and a lower hole through which a screw is inserted when the screw is attached, and the upper hole is an arc-shaped long hole around the lower hole.