EP3758656A2 - Structure électromécanique d'orthèse de pied tombant - Google Patents

Structure électromécanique d'orthèse de pied tombant

Info

Publication number
EP3758656A2
EP3758656A2 EP19838606.2A EP19838606A EP3758656A2 EP 3758656 A2 EP3758656 A2 EP 3758656A2 EP 19838606 A EP19838606 A EP 19838606A EP 3758656 A2 EP3758656 A2 EP 3758656A2
Authority
EP
European Patent Office
Prior art keywords
motion
foot
limit switch
lower body
dorsiflexion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19838606.2A
Other languages
German (de)
English (en)
Other versions
EP3758656A4 (fr
Inventor
Hasan HAVITÇIOGLU
Bora Uzun
Özgür AMPIYON
Ömer BEKÇIOGLU
Bugra HÜSEMOGLU
Onur OKTAY
Çagri HAVITÇIOLU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dokuz Eylul Universitesi Rektorlugu
Original Assignee
Dokuz Eylul Universitesi Rektorlugu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dokuz Eylul Universitesi Rektorlugu filed Critical Dokuz Eylul Universitesi Rektorlugu
Publication of EP3758656A2 publication Critical patent/EP3758656A2/fr
Publication of EP3758656A4 publication Critical patent/EP3758656A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
    • A61F5/0102—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
    • A61F5/0127—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations for the feet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
    • A61F5/0102—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
    • A61F2005/0132—Additional features of the articulation
    • A61F2005/0155—Additional features of the articulation with actuating means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
    • A61F5/0102—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
    • A61F2005/0132—Additional features of the articulation
    • A61F2005/0165—Additional features of the articulation with limits of movement

Definitions

  • the present invention is related to a foot orthosis which comprises a mechanical and motorized motion mechanism to help the patients with drop foot disorder for walking.
  • the present invention is related to an orthosis having an electromechanical mechanism which provides to realize walking function of the individuals with drop foot disorder in a realistic manner.
  • Drop foot is a clinical case in which the individual cannot control (particularly losing control ability for raising the foot above the ankle) his/her foot at different phases of walking due to various reasons.
  • the individual with drop foot disorder walks shuffling his/her toes because he/she cannot raise his/her toes, his/her normal walking is spoiled and his/her walking is performed in an uncontrolled manner.
  • Drop foot causes normal walking to deteriorate and cannot be controlled. While walking without shoes causes continuously twisting legs, it is impossible to walk with high heel shoes or slippers. In order to overcome this disorder occurred among the individuals, foot orthosis and walking support devices are developed. Current applications comprise the following disadvantages.
  • AFO anterior Foot Orthosis
  • SAFO Superior Foot Orthosis
  • These orthosis have models made of thermoplastic material, carbon, silicon.
  • AFO supports the ankle of the foot with a 90 degrees angle and helps walking by preventing the stumbling of the foot to the floor.
  • Soft shoes, sandals or ankle shoes cannot be put on with AFO.
  • SAFO orthosis
  • some orthosis (SAFO) made from a special silicone and recently begun to be used in a frequent manner are defended because they both do not create cosmetic problems and also they grasp the foot fully so that they are more practical and comfortable for walking.
  • SAFO orthosis
  • an apparatus for drop foot disorder comprises a mechanism which facilitates the movement of the foot by being engaged with the ankle and the user’s shoe.
  • a spring-mechanism between the ankle and shoe edge is used, raising the drop foot during walking in an upward manner is aimed.
  • the ankle must move both upwardly (dorsiflexion) and downwardly (plantar flexion). Simply an effective treatment can be provided in this manner.
  • the present invention is a new foot orthosis which exceeds the present state of the art, eliminates the disadvantages, and comprises additional extra advantages.
  • the aim of the present invention is to provide a new foot orthosis which enables a functional walking to be used in situations where the individual cannot control his/her foot at various phases of walking due to various reasons which is also known as drop foot disorder.
  • Another aim of the invention is to provide a new foot orthosis which is active when the foot front is in plantar flexion and prevents the foot front to rub on the floor and thus it includes a structure which prevents the patient to stumble and fall.
  • Another aim of the invention is to provide a new orthosis which helps to provide a functional walking, balanced walking, reduction in excessive energy spent while walking, in patients with difficulty in walking due to drop foot.
  • Another aim of the invention is to provide a new foot orthosis which provides solution to the malformation, deformity, wound problems seen in the foot due to drop foot.
  • Another aim of the invention is to provide a new foot orthosis with an electromechanical motion mechanism in order to realize the functional walking movements of the ankle.
  • Another aim of the invention is to provide a new foot orthosis which can limit the functional walking motion of the ankle in determined angles.
  • the present invention is a foot orthosis which has an upper body grasping the leg by allowing the foot to make dorsiflexion when the heel of the foot is raised in a manner to catch the required angle for walking during the walk of the individuals with drop foot disorder, a movable joint center which engages said lower body and upper body, characterized in that; it comprises a power source which provides energy supply to the motion mechanism on a motion plate positioned on any of the side surfaces of the upper body, an electrical motor which provides the required drive for the motion on the motion plate, a relay which provides the operation of said electrical motor by transmitting flow, a reducer which is connected to the electrical motor and transmits the motion to the cone gear located at the end, a cone gear which transmits the motion coming from the reducer to the gear wheel, a rear limit switch which limits the plantar flexion motions of the upper body side surface at the near portion of the heel, a front limit switch which limits the dorsiflexion motion of the
  • the characteristic of another preferred embodiment of the invention is to comprise a protective cover which is positioned in a manner such that it covers and protects all elements located on the motion plate.
  • the characteristic of another preferred embodiment of the invention is to position the rear limit switch, front limit switch and lower body motion handle in a manner such that they can limit the plantar flexion and dorsiflexion motion at different angles according to the requirements and needs.
  • the characteristic of another preferred embodiment of the invention is to comprise an open-close switch which provides to open and close the motion mechanism on the protective cover.
  • the characteristic of another preferred embodiment of the invention is to the rear limit switch, front limit switch and lower body motion handle in a manner such that they can limit the plantar flexion and dorsiflexion motion at required angles.
  • the characteristic of another preferred embodiment of the invention is to provide the foot return back to its neutral position by cutting the electric flow after lower body motion handle contacts with the front limit switch during dorsiflexion motion.
  • the characteristic of another preferred embodiment of the invention is to operate the relay by contacting with the rear limit switch and thus electrical motor during plantar flexion motion of the lower body motion handle.
  • Figure - 1 is the view of the foot orthesis of the present invention applied on the foot.
  • Figure - 2 is the view of the plantar flexion motion made with the foot orthesis of the present invention.
  • Figure - 3 is the view of the dorsiflexion motion made with the foot orthesis of the present invention.
  • foot orthosis of the present invention is described by means of examples in a non-limiting manner for clarifying the subject matter.
  • foot orthosis which comprise mechanical and motorized motion mechanism to help the patients with drop foot disorder to walk is disclosed.
  • FIG. 1 is a view which shows the application of foot orthosis to the present invention to the foot.
  • foot orthosis consists of an upper body (1 ) which grasps the leg (B), a lower body (2) which grasps the foot (A) and movable joint center (13) which engages said lower body (2) and upper body (1 ) to each other.
  • an upper body leg connection strap (3) which connects the orthosis to the leg (B).
  • a motion panel (12) which protects all elements that provide motion mechanism of the invention.
  • the motion plate (12) comprises on itself; a power source (5) which provides energy supply to the motion mechanism, electrical motor (7) which provides required drive for motion, a relay (6) which actuates said electrical motor (7) by means of transmitting flow, a reducer (8) which is connected to the electrical motor (7) and transmits the motion to the cone gear (9) at its end, a rear limit switch (11a) which limits the plantar flexion (P) motions with a determined angle (30°), a front limit switch (11 b) which limits the dorsiflexion (D) motion with a determined angle (20°) and a protective cover (15) located on all of these elements. There is an open-close switch (16) on the protective cover (15). There are lower body motion handle (14), gear wheel (10) and lower body foot connection strap (4) on the lower body (2).
  • the operation principal of the invention is as the following; when the heel portion of the foot is raised during walking in order to catch the required angle (plantar flexion), the lower body motion handle (14) contacts with the rear limit switch (1 1 a), the electrical flow reaches to the relay (6) to which the rear limit switch (1 1 a) is connected, and from the relay (6) to the electrical motor (7).
  • the cone gear (9) starts to rotate which is connected to the shaft of the electrical motor (7) and the reducer (8).
  • the cone gear (9) moves the lower body (2) upwardly by means of the gear wheel (10) to which it is connected and the lower body motion handle (14) whereon the gear wheel (10) is located.
  • Figure 2 is the view showing the plantar flexion (P) motion made with the foot orthesis of the present invention. According to the figure, when the heel portion of the foot is raised in order to make the required angle for walking (plantar flexion), then the lower body motion handle (14) contacts with the rear limit switch (1 1 a) and the cycle mentioned in the previous paragraph occurs.
  • Figure 3 is the view showing dorsiflexion (D) motion made with the foot orthosis of the present invention.
  • the lower body motion handle (14) contacts with the front limit switch (1 1 b). In this case the electrical flow is cut and the foot (A) is returned back to its neutral position.
  • the plantar flexion (P) motion and dorsiflexion (D) motion are limited with some angles. These angles can be changed with any degrees.
  • the structure is provided with positioning the rear limit switch (1 1 a), front limit switch (1 1 b) and lower body motion handle (14) in an appropriate manner. Said angle values are the optimum angle values observed in individuals without drop foot disorder problem. Flowever according to demand, condition of the patient and requirement, the angles may be changed by changing this positioning intervals.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Rehabilitation Tools (AREA)

Abstract

La présente invention concerne une orthèse de pied qui a un mécanisme de mouvement mécanique et motorisé pour aider, pendant la marche, les patients atteints d'une affection de pied tombant, laquelle orthèse comporte un corps supérieur (1) retenant la jambe (B), un corps inférieur (2) retenant le pied (A), un centre d'articulation mobile (13) qui vient en prise avec ledit corps inférieur (2) et le corps supérieur (1), caractérisée en ce qu'elle comprend une source d'alimentation (5) qui fournit une alimentation en énergie au mécanisme de mouvement sur une plaque de mouvement (12) positionnée sur l'une quelconque des surfaces latérales du corps supérieur (1), un moteur électrique (7) qui assure l'entraînement requis pour le mouvement sur la plaque de mouvement (12), un relais (6) qui assure le fonctionnement dudit moteur électrique (7) par transmission d'un flux, un réducteur (8) qui est relié au moteur électrique (7) et transmet le mouvement à l'engrenage conique (9) situé à l'extrémité (P), un engrenage conique (9) qui transmet le mouvement provenant du réducteur (8) à la roue dentée (10), un commutateur de limite arrière (11a) qui limite les mouvements de flexion plantaire (P) de la surface latérale du corps supérieur (1), au niveau de la partie proche du talon, un commutateur de limite avant (11 b) qui limite le mouvement de dorsiflexion (D) de la surface latérale du corps supérieur (1) au niveau de la partie distale du talon, une plaque de mouvement (12) qui protège les éléments qui assurent le mouvement, une poignée de mouvement de corps inférieur (14) sur le corps inférieur (2), qui est placée entre le commutateur de limite arrière (11a) et le commutateur de limite avant (11b), déclenche les mouvements de flexion plantaire (P) et de dorsiflexion (D) des commutateurs de limite (11a, 11 b).
EP19838606.2A 2018-03-30 2019-03-09 Structure électromécanique d'orthèse de pied tombant Withdrawn EP3758656A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201804471 2018-03-30
PCT/TR2019/050146 WO2020018035A2 (fr) 2018-03-30 2019-03-09 Structure électromécanique d'orthèse de pied tombant

Publications (2)

Publication Number Publication Date
EP3758656A2 true EP3758656A2 (fr) 2021-01-06
EP3758656A4 EP3758656A4 (fr) 2021-04-07

Family

ID=69163894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19838606.2A Withdrawn EP3758656A4 (fr) 2018-03-30 2019-03-09 Structure électromécanique d'orthèse de pied tombant

Country Status (2)

Country Link
EP (1) EP3758656A4 (fr)
WO (1) WO2020018035A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12357487B2 (en) * 2019-02-22 2025-07-15 The Government Of The United States, As Represented By The Secretary Of The Army Spring engagement and disengagement during gait cycle
WO2024158673A1 (fr) * 2023-01-23 2024-08-02 Dephy, Inc. Systèmes, procédés et appareil pour une mobilité augmentée
US12459108B2 (en) 2023-04-28 2025-11-04 University Of Utah Research Foundation Powered ankle exoskeleton with series-elastic actuation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5112296A (en) * 1991-04-30 1992-05-12 The Board Of Supervisors Of Louisiana State University Biofeedback activated orthosis for foot-drop rehabilitation
US6500138B1 (en) * 2000-04-07 2002-12-31 Mayo Foundation For Medical Education And Research Electromechanical joint control device with wrap spring clutch
US8075633B2 (en) * 2003-09-25 2011-12-13 Massachusetts Institute Of Technology Active ankle foot orthosis
US20110112447A1 (en) * 2009-10-05 2011-05-12 The Board Of Trustees Of The University Of Illinois Portable active fluid powered ankle-foot orthosis
US9839552B2 (en) * 2011-01-10 2017-12-12 Bionx Medical Technologies, Inc. Powered joint orthosis
CN103767815B (zh) * 2014-01-14 2015-09-30 北京理工大学 前置式动力性踝足康复矫形器
US10426637B2 (en) * 2015-05-11 2019-10-01 The Hong Kong Polytechnic University Exoskeleton ankle robot
DE102015110852B3 (de) * 2015-07-06 2016-12-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Gelenkverbindung mit einer Antriebseinrichtung sowie Verfahren zur Ansteuerung einer Schwenkbewegung einer Gelenkverbindung
WO2017105996A1 (fr) * 2015-12-14 2017-06-22 Board Of Regents, The University Of Texas System Procédés et dispositifs de commande de couple pour orthèse électrique
US11413210B2 (en) * 2016-06-14 2022-08-16 University Of Houston System Customizable orthotic/prosthetic braces and lightweight modular exoskeleton

Also Published As

Publication number Publication date
EP3758656A4 (fr) 2021-04-07
WO2020018035A3 (fr) 2020-03-19
WO2020018035A2 (fr) 2020-01-23

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