# US 7,744,513 B2 · Leg lift device and associated method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,744,513 B2 - Document ID: US7744513B2 - Status: Granted - Kind: B2 - Application number: 12/120,430 - Filed: 2008-05-14 - Published: 2009-03-26 - Granted: 2010-06-29 - Earliest claimed: 2007-09-24 - Inventors: Bradley Castellano - Web page: https://patentgrep.com/patent/US7744513B2 ## CPC - A43B 7/38: Elevating, i.e. height increasing (with elevated heel parts inside A43B7/16; lengthening pieces for natural legs A61F3/00) - A43B 3/108: {characterised by the sole} - A43B 3/163: {specially adapted for health or hygienic purposes, e.g. comprising electrically conductive material allowing the discharge of electrostatic charges} - A61F 5/0195: {Shoe-like orthopaedic devices for protecting the feet against injuries after operations} - A43B: CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR - 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) ## Abstract A leg lift device is provided for attachment to a shoe. The leg lift device includes a sole, an optional lift insert and a shoe receiver attached to the sole. The shoe receiver includes a first section to engage a toe of a shoe and a second section to engage a heel of a shoe. The device also includes an attachment strap. A selected method is also provided. ## Claims ### Claim 1 Apparatus for therapeutic treatment of a patient having two legs, a first one of which requires the therapeutic treatment, the apparatus comprising: a therapeutic device for attachment to the first leg of the patient for applying a therapeutic effect to the first leg, the therapeutic device being arranged such that the foot of the first leg of the patient is supported at a position spaced from the ground by a first distance when walking; a shoe for attachment to the foot of a second one of the legs of the patient to be worn when walking, the shoe defining a second distance of the foot of the second leg from a bottom of the shoe; and a leg lift device for attachment to the shoe, comprising: a sole plate arranged to engage underneath the shoe for engaging the ground beneath the shoe, the sole plate defining a first lift distance by which the shoe is raised from the ground; a flexible shoe receiver attached to said sole plate around a periphery of said sole plate, said receiver including a first section to releasably engage over a toe of the shoe and a second section to releasably engage around a heel of the shoe such that the flexible shoe receiver engages around the shoe to hold the sole plate onto the shoe to remain in place between the shoe and the ground during walking, the shoe being readily removable from the flexible shoe receiver; and a lift insert piece arranged to be inserted between the shoe and the sole plate and arranged to remain in place during walking, the lift insert piece defining a second lift distance by which the shoe is raised from the ground; the therapeutic device being arranged such that: either the first distance is substantially equal to the sum of the second distance and the first lift distance; or the first distance is substantially equal to the sum of the second distance, the first lift distance and the second lift distance; so as to reduce the physiological strain placed on the knees, hip and back of the patient when walking. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein there is provided between said sole plate and said lift insert piece at least one cooperating engagement arrangement to hold the lift insert piece in place on said sole plate and beneath said shoe during walking. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein said cooperating engagement arrangement comprises a recess on one of said sole plate and said lift insert piece and a cooperating projection on the other of said sole plate and said lift insert piece. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein there are at least two cooperating engagement arrangements each comprises a recess on one of said sole plate and said lift insert piece and a cooperating projection on the other of said sole plate and said lift insert piece. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein said shoe receiver is an open web made from an elastomeric material including a top band engaged around the shoe and a plurality of separate lugs extending from the top band to the sole plate. ### Claim 6 (depends on 5) The apparatus of claim 5, further including an attachment strap connected across the top band from one side to an opposed side. ### Claim 7 (depends on 5) The apparatus of claim 5, wherein said shoe receiver is made from a material selected from a group consisting of thermoplastic elastomer (TPE), rubber, latex, synthetic elastomer and combinations thereof. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein the apparatus includes a single lift insert piece. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein the apparatus includes a series of lift insert pieces. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the apparatus includes a series of lift insert pieces of different thicknesses.