WO2022018028A1 - Dispositif orthopédique destiné à soutenir un membre d'un patient - Google Patents

Dispositif orthopédique destiné à soutenir un membre d'un patient Download PDF

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Publication number
WO2022018028A1
WO2022018028A1 PCT/EP2021/070154 EP2021070154W WO2022018028A1 WO 2022018028 A1 WO2022018028 A1 WO 2022018028A1 EP 2021070154 W EP2021070154 W EP 2021070154W WO 2022018028 A1 WO2022018028 A1 WO 2022018028A1
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WO
WIPO (PCT)
Prior art keywords
force
upper body
relative
force transmission
thigh
Prior art date
Application number
PCT/EP2021/070154
Other languages
German (de)
English (en)
Inventor
Torsten Parth
Benjamin Schirrmeister
Jonas BORNMANN
Paul HUNGER
Original Assignee
Ottobock Se & Co. Kgaa
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 Ottobock Se & Co. Kgaa filed Critical Ottobock Se & Co. Kgaa
Publication of WO2022018028A1 publication Critical patent/WO2022018028A1/fr

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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. splints, casts or braces
    • A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
    • 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. splints, casts or braces
    • A61F5/02—Orthopaedic corsets
    • A61F5/028—Braces for providing support to the lower back, e.g. lumbo sacral supports
    • 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. splints, casts or braces
    • A61F5/0102—Orthopaedic devices, e.g. 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
    • A61F2005/0137—Additional features of the articulation with two parallel pivots
    • A61F2005/0139—Additional features of the articulation with two parallel pivots geared
    • 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. splints, casts or braces
    • A61F5/0102—Orthopaedic devices, e.g. 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
    • A61F2005/0179—Additional features of the articulation with spring means

Definitions

  • Orthopedic device for supporting a user's lower extremity
  • the invention relates to an orthopedic device for supporting a lower extremity and/or a lower back of a user, the orthopedic device having at least one upper joint element, at least one lower joint element which can be pivoted relative to the upper joint element, and at least one passive Has an actuator which is set up to apply a torque to the upper joint element and/or the lower joint element, by means of which the upper joint element can be pivoted relative to the lower joint element.
  • Such devices have been known from the prior art for a long time and are used in particular when lifting, in order to support the person who is to lift a heavy object, for example. In addition, such devices are used for people who have to work in a crouched position.
  • a device designed for this purpose is known, for example, from US Pat. No. 443,113. It has thigh elements that are placed on the thighs of the wearer. The device is also arranged on the upper body of the wearer via shoulder straps. There are leaf spring elements between the shoulder straps and the thigh elements, which bend when you bend over and are therefore charged with potential energy. As a result, the leaf spring elements exert a force on the upper body, which supports the stretching of the body.
  • the disadvantage is that the resulting force is always exerted when an angle between the upper body and the thighs is changed. It is consequently also exercised, for example, when climbing stairs or sitting down, which is at least uncomfortable, but possibly also annoying and uncomfortable.
  • the applied force is applied to the thigh, so that it is loaded almost perpendicularly to the longitudinal direction of the thigh bone. This can lead to problems and pain over prolonged use, which is particularly the case when the devices are used to relieve the user in their professions, since the thigh is not designed for loads in this direction.
  • a support device is known from US Pat. No. 9,980,873 B2, which has a knee joint by means of which a first link is pivotably connected to a second link.
  • An actuator is disposed between the two members and in a first mode of operation of the device applies a force to the two members when the knee is flexed.
  • a second operating mode on the other hand, no force is applied even when the knee is bent. This ensures that the knee of a person who squats, for example, is supported, while a bent knee experiences no supporting force in the swing phase of a step. Therefore, in some of the illustrated embodiments, a floor sensor is present, which can be used to determine whether a user's leg is on the floor. Such a sensor can be arranged in a shoe of the wearer, for example.
  • the invention is therefore based on the object of further developing a device according to the preamble of claim 1 in such a way that the force is also dissipated into the ground in particular when the user bends down or leans forward.
  • the invention solves the problem with an orthopedic device according to the preamble of claim 1, which is characterized in that it has at least one ground contact element, which is connected to the lower joint kelement that in the applied state of the device by the at least a passive actuator applied torque, a force is transmitted by means of the ground contact element to a ground on which the user is located.
  • a passive actuator is understood to mean an actuator that does not require a motor or an external drive. Its energy, which it needs to exert the force, comes from the movement of various components the orthopedic device.
  • the at least one passive actuator is charged with energy when the upper joint element moves relative to the lower joint element. This movement is in particular a pivoting, which preferably takes place when the user of the device bends over or bends over.
  • An orthopedic device is in particular an orthosis or an exoskeleton. A passive actuator thus requires no energy source other than the wearer's human body or gravity.
  • the passive actuator is preferably arranged to apply torque to the lower link member and the upper link member. Due to this torque, the two elements can be pivoted relative to one another.
  • the torque applied by the at least one passive actuator preferably acts in the direction of extension of the joint, which element is formed by the upper joint element and the lower joint element.
  • the extension direction is the pivoting direction, which stretches the joint, while the opposite direction, in which the joint is bent, is the so-called flexion direction.
  • the ground contact element is preferably connected to the lower joint element via at least one force transmission element.
  • the power transmission element can be a rail or rod, for example. It is preferably set up to transmit compressive forces.
  • the force transmission element is preferably arranged by means of a joint, for example a swivel joint, at the distal end of the lower joint element.
  • the joint that couples the force transmission element to the lower joint element is particularly preferably located in the region of the knee of the wearer of the orthopedic technical device when the orthopedic technical device is in the fitted state.
  • the at least one passive actuator is set up, for example, to apply a force, in particular a tensile force, to the lower joint element and/or the upper joint element.
  • a force in particular a tensile force
  • the device is an orthopedic device for supporting a lower back of the wearer.
  • the upper joint element is then preferably an upper body element for application to the upper body of the wearer and the lower joint element is a thigh element for application to the thighs of the wearer.
  • the thigh element and the upper body element are pivoted relative to one another.
  • the upper body element and the upper leg element are connected directly to one another by a joint, which means that one element is pivotably arranged on the other element.
  • the torque applied by the at least one passive actuator is then preferably aligned in such a way that it supports pivoting in the opposite direction. As a result, the user of the device is supported when raising it.
  • the torque applied by the at least one actuator is consequently the torque that assists the user of the device when straightening up.
  • the device is an orthopedic device for supporting a knee joint of the wearer.
  • the upper joint element is a thigh element for placing on the thigh and the lower joint element is a lower leg element for placing on the lower leg of the wearer.
  • the orthopedic device has at least one floor contact element, by means of which a force generated from the torque applied by the actuator is transmitted to the floor.
  • the at least one ground contact element is preferably arranged in such a way that it comes into contact with the ground when the orthopedic device is in place when a foot of the wearer, on which the ground contact element is arranged, is in contact with the ground.
  • the ground contact element is preferably arranged in the area of the heel on the wearer's foot, for example on or in a shoe that the wearer of the device wears. This has the advantage that the torque applied by the at least one passive actuator and the force generated from it can be introduced immediately into the ground and the supporting effect unfolds.
  • the ground contact element can also be arranged such that it is not in contact with the ground when the orthopedic device is in place, as long as no torque is applied to the lower joint element and/or the upper joint element by the passive actuator. This protects the ground contact element, since it does not come into contact with the ground with every step that the wearer of the device takes, for example, and thus cannot wear out. In this case, however, a displacement and pivoting of the lower joint element caused by the torque is first required relative to the upper joint element before a force generated from the torque can be introduced into the ground via the ground contact element.
  • At least one force transmission element is preferably displaced by the force applied by the actuator until the connection to the ground that transmits the force is established.
  • a compressive force is transmitted to the ground so that it is sufficient for the connection that transmits the force if the individual components and elements through which the force is transmitted are in contact with one another in such a way that a compressive power can be transmitted.
  • Fastening the components and elements together is often an advantage, but not necessary. For example, it is sufficient if the ground contact element comes into contact with the ground and can thus transmit a compressive force acting on the ground contact element to the ground. It doesn't have to be attached to the floor.
  • the ground contact element is preferably made of a plastic and preferably has a contact surface that is placed against the ground. It preferably has a non-slip profile. This prevents the ground contact element from slipping relative to the ground. This is to be avoided in particular in the case of high loads, ie when the user is being supported particularly strongly by the device.
  • the contact surface is preferably curved, for example in the form of a circular curve, in order to ensure the most uniform and preferably non-slip configuration possible, regardless of the orientation in which it comes into contact with the floor.
  • At least one ground contact element is preferably arranged on the force transmission element in such a way that it is displaced with it.
  • the force applied by the actuator acts in such a way that the force transmission element on which the ground contact element is located is displaced and the ground contact element is pressed against the ground.
  • the ground serves as a counter bearing for the force applied after this moment, which is generated from the torque applied by the at least one actuator, so that the force in the ground is drained. This occurs almost or completely independently of the orientation and/or position of the ground contact element, so that the user-supporting effect is also achieved when the user of the device is not standing or walking upright.
  • the ground contact element is not in contact with the ground when the wearer is standing or walking.
  • a ground contact element can also be positioned in such a way that it is in contact with the ground, regardless of whether the wearer of the device is standing upright or walking or whether he is bending forward, for example.
  • Such a ground contact element can, for example, be arranged on a shoe of the wearer or be formed by a shoe.
  • the at least one force transmission element is displaceable relative to at least one ground contact element.
  • a force-transmitting connection can be produced by the force-transmitting element being displaced by the force that is generated from the torque applied by the actuator. The displacement takes place until the ground contact element and the force transmission element are in contact with one another in such a way that the connection transmitting the force is established. After that, the force is transmitted into the ground.
  • At least one ground contact element is arranged on a force transmission element in the form of a lower leg element, which is pivotally arranged on the lower joint element, which is designed as a thigh element in this case, and preferably extends along the lower leg of the wearer.
  • the thigh element and the lower leg element are preferably connected to one another by a joint with a pivot axis. It is preferably a free-running joint that reflects the degree of freedom of the knee.
  • the force transmission element in the form of the lower leg element preferably has a lower leg shell for placing against a lower leg of the user. This can preferably be displaced along a longitudinal extension of the force transmission element relative to the force transmission element. If the user of the device stands upright, the thigh element and the lower leg element arranged thereon extend along the device, ie preferably along the direction of the earth's gravitational field. It has proven to be advantageous if, in this state, a combined length of the lower leg element and the upper leg element is not sufficient for the element attached to the lower leg ordered ground contact element is in contact with the ground.
  • the distance between the distal end of the thigh element, which is preferably arranged in the region of the user's hips or pelvis, and the floor decreases.
  • the at least one passive actuator exerts the torque on the thigh element, which is thereby pivoted relative to the upper body element until the ground contact element comes into contact with the ground.
  • the ground contact element is preferably arranged at a distal end of the lower leg element.
  • the force transmission element can also be designed in the form of a lower leg element without the ground contact element being located at its distal end.
  • the connection between the ground contact element and the lower leg element is then only achieved by moving the force transmission element, in this embodiment the lower leg element, relative to the ground contact element.
  • the lower leg shell preferably remains in its position relative to the lower leg against which it rests. This is achieved in that the lower leg shell can be displaced relative to the force transmission element along the force transmission element. So if the power transmission element is shifted, for example to make contact with the floor element or the floor, the lower leg shell does not have to follow this movement, but remains in the position on the lower leg. This prevents the lower leg shell from slipping.
  • the lower leg shell Since the lower leg shell is arranged slidably on the lower leg element in the longitudinal direction of the lower leg element, the lower leg can move kelelement in this direction relative to the lower leg shell resting against the lower leg and thus be brought into contact with the ground.
  • the lower leg shell is preferably not displaced relative to the lower leg. If the at least one passive actuator now applies a force and thus the torque to the thigh element, the thigh element and thus also the lower leg element arranged thereon are moved. Since the user's foot is preferably on the ground in this state is located and does not move or cannot move relative to this, the lower leg element will move relative to the lower leg shell due to the movement caused by the at least one passive actuator. As a result, either the power transmission element in the form of the lower leg element will come into contact with the ground contact element or the ground contact element will come into contact with the ground. From this moment on, the floor serves as a counter bearing for the force applied by the actuator.
  • At least one ground contact element is arranged at a distal end of the thigh element when this forms the lower joint element.
  • This at least one ground contact element is of particular advantage when the user of the device is kneeling and wants to sit up or stand up. In this state, at least one of the user's knees is on the ground.
  • the associated foot on the other hand, is only in contact with the ground with the toes.
  • a ground contact element at a distal end of a lower leg element can therefore not come into contact with the ground even as a result of longitudinal displacement of the lower leg element.
  • the at least one ground contact element at the distal end of the thigh element comes into contact with the ground as soon as the at least one passive actuator in this posture of the user shifts the thigh element relative to the upper body element by the force it applies.
  • the ground also acts in this embodiment as a counter bearing for the force applied by the at least one passive actuator.
  • the upper element preferably serves as a power transmission element at the same time.
  • the at least one ground contact element at the distal end of the thigh element preferably protrudes frontally over the thigh element. This is especially true when the user of the device is standing upright.
  • the force transmission element in the form of the lower leg element or at least a distal portion thereof is rotatable about a longitudinal axis of the lower leg element.
  • the lower leg element preferably has a proximal portion and a distal portion, which are preferably designed as separate components and are preferably both rod-shaped or tubular.
  • the two components are preferably connected to one another in such a way that they can be rotated relative to one another about the longitudinal axis of the lower leg element.
  • the longitudinal axis of the lower leg element is not necessarily an axis of symmetry.
  • the lower leg element, the proximal and/or the distal portion have a rotational symmetry whose axis of symmetry forms the longitudinal axis.
  • the longitudinal axis of the lower leg element corresponds to the direction of the longitudinal extension.
  • the lower leg shell is preferably arranged on the distal part of the lower leg element.
  • the at least one passive actuator has at least one mechanical energy store.
  • the device is an orthopedic device for supporting a lower back.
  • the device preferably has a basin element.
  • the upper body element preferably has a first engagement element and the thigh element has a second engagement element.
  • the upper leg element is arranged on the pelvic element such that it can pivot about a first pivot axis, and the upper body element is arranged to be movable relative to the pelvic element.
  • the first engagement element can be engaged and disengaged with the second engagement element by moving the upper body element relative to the pelvic element, and the mechanical energy storage device can be charged and discharged by the thigh element being displaced relative to the upper body element when the first engagement element is engaged the second engaging element is engaged.
  • This configuration is based on the finding that the lower back of the user does not always require support when an angle between an upper body element, which is arranged for example in the chest area or in the back area of the upper body of the wearer, and the thigh of the wearer is a predetermined one Below the angle, the two parts of the body are pivoted against each other.
  • the first engagement element and the second engagement element are formed in such a way that a force can be transmitted between the two when they are engaged and no force is transmitted when they are not engaged. They are also designed in such a way that they can be engaged and disengaged multiple times. There are preferably two form-locking elements and/or two force-locking elements, particularly preferably two friction-locking elements.
  • the torso member which is preferably positioned on the wearer's back or chest, must be moved relative to the pelvic member, which is preferably positioned on the wearer's pelvis, to engage the first engagement member with the second engagement member. Only then can the energy store of the at least one passive actuator be charged or discharged with mechanical energy by further pivoting. Without this movement of the upper body element relative to the pelvic element, the two engagement elements remain disengaged and movement of the thigh element is prevented. relative to the upper body element does not result in any energetic charging of the energy store. Therefore, no force supporting the stretching can be applied.
  • the mechanical energy store preferably has at least one spring element or is a spring element. Alternatively or additionally, it has at least one pressure accumulator, a pneumatic and/or a hydraulic system and/or a hydraulic energy accumulator.
  • This design of the orthopedic technical device means that when sitting or climbing stairs, where there is usually insufficient movement between the upper body element and the pelvic element, no additional force is applied to support the stretching, while lifting, for example, is heavier Items a support is reached. With this type of movement, the upper body element is moved relative to the pelvis element, thereby engaging the first engagement element with the second engagement element. If the thigh element is pivoted relative to the pelvic element in this state, the mechanical energy store is charged with potential energy, as a result of which a force supporting the stretching is applied.
  • the first engagement element has a gear wheel which is arranged eccentrically on the basin element so that it can be pivoted about a second pivot axis.
  • the second engagement element is preferably a gear wheel which is arranged on the thigh element in a rotationally fixed manner.
  • the upper body element is preferably connected to the first engagement element and in particular to the gear wheel of the first engagement element in such a way that the first engagement element is pivoted about the second pivot axis when the upper body element is moved relative to the pelvic element.
  • the gear of the first engagement element comes with the second engagement element, which preferably also has a gear in contact and is brought into contact with him. If the thigh is moved relative to the upper body in this state, for example by the wearer kneeling, the mechanical energy storage device is charged with potential energy.
  • this potential energy is first given off again by a force being exerted on the thigh element and/or the upper body element, which supports the stretching of the wearer's body.
  • the thigh element is pivoted relative to the upper body element until at least one ground contact element comes into contact with the ground, which then acts as a counter bearing. Only when the upper body element is moved back relative to the pelvis and thus relative to the pelvic element attached to the pelvis is the first engagement element disengaged from the second engagement element and the mechanical energy store cannot be recharged or further discharged.
  • the upper body element and the first engagement element advantageously have connecting elements that correspond to one another, so that the upper body element can be connected to the first engagement element in a number of positions.
  • the upper body element can have a projection or pin that can be placed in recesses or depressions on the first engagement element.
  • the reverse configuration is also possible, in which the first engagement element has a projection, pin or pin and the recesses and depressions are present on the upper body element.
  • the upper body element and the first engagement element can be attached in different positions and relative orientations to one another. Particularly preferably, these different positions result in the first engagement element being positioned in different angular positions around the second pivot axis. As a result, it can be set how much the upper body element has to be moved relative to the pelvic element in order to bring the two engagement elements into engagement. It is therefore adjustable at which point in time during a movement the mechanical energy store can be charged.
  • the orthopedic technical device particularly preferably has a displacement device which is set up to move the first engagement element and/or the second engagement element towards one another when the upper body element assumes an angle to the pelvic element that is smaller than a predetermined limit angle.
  • the angle between the upper body member and the pelvic member is approximately 180° when the wearer of the device is standing upright. If he bends down or tends to tilt his upper body relative to the pelvic element, this angle becomes smaller. If the angle passes the predetermined limit angle, the angle is then smaller than this predetermined limit angle, so that the displacement device moves the two engagement elements towards one another.
  • the displacement device preferably moves either the first engagement element or the second engagement element, while the respective other engagement element remains stationary. Alternatively, the displacement device moves both the first engagement element and the second engagement element.
  • the displacement device is particularly preferably set up to move the first engagement element and/or the second engagement element away from one another when the upper body element assumes an angle with the pelvic element that is greater than the predetermined limit angle.
  • the displacement device is set up to exert a force on the handle element to be moved in each case. It has been found advantageous if this force is maintained after the respective engaging member has been moved and the two engaging members have been engaged or disengaged. This ensures that the status is not accidentally changed. If the two engagement elements have been brought into engagement by a force of the displacement device, the force used for this purpose is maintained in order to prevent the two engagement elements from being inadvertently disengaged, which would impair the functionality of the orthopedic technical device. The same applies to force that disengages the two engaging elements. This force is also preferably maintained in order to prevent an inadvertent displacement of the respective engaging element, as a result of which both engaging elements would be engaged again.
  • At least two magnets are preferably arranged on the pelvic element or on the thigh element and at least one magnet is arranged on the other element in such a way that they exert a force on one another whose direction changes when the angle when the upper body element is moved relative to the pelvic element predetermined limit angle happened.
  • the displacement device consequently has the magnets mentioned.
  • On the element on the upper body element or on the pelvic element on which at least two magnets are arranged these are preferably arranged in different orientations. This means that the north pole of at least one of the magnets and the south pole of at least one other magnet are directed towards the respective other element of the orthopedic technical device.
  • the two engaging elements are not engaged with one another. Consequently, a force is preferably exerted which the two engagement elements keeps away from each other. This can be done by the magnets exerting a force on each other. This can be a repulsive force, for example. This is achieved by positioning a magnet of the pelvis element and a magnet of the thigh element close to one another, so that their poles of the same name, i.e. the south pole or north pole, face each other. If the pelvic element is now moved relative to the thigh element, the magnets arranged on the respective elements are also moved. As a result, the moving magnets are shifted relative to one another.
  • a second magnet of the pelvic element or thigh element preferably comes into the region of the at least one magnet of the other element in each case. This creates an attractive force because the poles of the two magnets with the same name are directed towards each other.
  • the orthopedic technical device can advantageously be brought into an active state and into a passive state.
  • the active state has been described so far and is characterized in that the first engagement element and the second engagement element can be engaged and disengaged by moving the upper body element relative to the pelvic element. This is not possible in the passive state. If the upper body element is moved relative to the pelvic element in the passive state, the two engagement elements do not engage or disengage.
  • the device preferably has at least one actuating element, which can be actuated to bring the device from the active state to the passive state and/or vice versa.
  • actuating element can, for example, decouple a movement of the first engagement element from the movement of the upper body element. By actuating the actuating element again, the movement is coupled again, so that the engaging elements can be brought into engagement.
  • Figures 1 -6 Devices according to different embodiments of the present invention in the applied state in different situations.
  • FIG. 1 shows a device according to an exemplary embodiment of the present invention in the applied state.
  • a user 2 wears the device, which has an upper body element 4 arranged on an upper body of the user 2 and a thigh element 6 .
  • the thigh element 6 is pivotable about a pivot axis 8 on a pelvic element 10 and therefore also ge compared to the upper body element 4, which is also movably arranged at the distal end on the pelvic element 10, pivotable.
  • a force transmission element is arranged in the form of a lower leg element 12, on which a lower leg shell 14 is arranged. This is fixed to a lower leg of the user 2.
  • the lower leg shell 14 is arranged longitudinally displaceable relative to the lower leg element 12 , which is illustrated by the double arrow 16 .
  • the lower leg shell 14 has a projection 18 in the form of a pin, which is slidably mounted in a slot 20 arranged for this purpose on the lower leg element.
  • a ground contact element 22 At the distal end of the lower leg element there is a ground contact element 22 which is in contact with the ground in the situation shown in FIG.
  • the device also has a passive actuator 24, the lever 26 of the upper body element 4 is arranged in the embodiment shown between the thigh element 6 and a force application.
  • a passive actuator 24 For example, a spring element, such as an expander, was stretched out there and now exerts a force that pulls the thigh element 6 in the direction of arrow 30 . As a result, a counterclockwise torque about the pivot axis 8 is applied to the thigh element 6 .
  • the thigh element 6 follows this torque and is pivoted about the pivot axis 8 in the direction mentioned.
  • the force transmission element located at the distal end of the thigh element 6 in the form of the lower leg element 12 is also moved and shifted downwards in FIG. 1 until the situation shown in FIG. 1 is reached and the ground contact element 22 touches the ground.
  • the lower leg element 12 is thereby displaced relative to the lower leg shell 14 .
  • the ground contact element 22 touches the ground, further movement of the lower leg element 12 in this direction is no longer possible and the ground serves as a counter bearing for the force applied by the passive actuator 24, which now supports the user 2 in standing up.
  • the lower leg element 12 has a proximal portion 32 and a distal portion 34 which can be rotated relative to one another along the double arrow 36 les.
  • FIG. 2 shows the device from FIG. 1 in a different movement situation of the user 2.
  • the thigh element 6 is not pivoted relative to the upper body element 4 in the situation shown, so that the passive actuator 24 was not tensioned and therefore does not exert any force.
  • the ground contact element 22 therefore does not protrude beyond the sole of the foot of the user 2 and therefore does not restrict movement.
  • the lower leg element 12 is displaced further proximally, ie in the direction of the knee, relative to the lower leg shell 14 .
  • Another situation is shown in FIG.
  • the user 2 bends his upper body forward with his legs stretched out.
  • the upper body element 4 has a first engagement element, not shown, and the thigh element 6 has a second engagement element, also not shown. In the situation shown in FIG. 3, these are disengaged from one another, so that the passive actuator 24 does not exert any force, although the upper body element 4 is sloping relative to the thigh element 6 .
  • FIG. 4 shows a kneeling user 2 carrying a device according to a further exemplary embodiment of the present invention. It has the upper body perelement 4 and the thigh element 6, between which the passive actuator 24 is arranged.
  • the ground contact element 22 at the distal end of the lower leg element 12 is not arranged in such a way that it can be brought into contact with the ground by the torque applied by the passive actuator 24.
  • the device has a further ground contact element 38 .
  • This is preferably arranged at a distal end of the thigh element 6, which acts as a force transmission element.
  • the torque applied by the passive actuator 24 causes the thigh element 6 to pivot clockwise about the pivot axis 8 until the ground contact element 38 comes into contact with the ground. Since after the floor acts as a counter bearing for the up of the passive actuator 24 brought force.
  • FIG. 5 essentially corresponds to the illustration from FIG. 1, with the ground contact element 22 being designed in FIG. 5 in such a way that it is in contact with the ground regardless of the position of the user 2 if the user's foot is in contact with the ground. Therefore, a displacement device, as shown in FIG. 1 and which enables the displacement along the double arrow 16 in FIG. 1, is unnecessary in the embodiment in FIG.
  • the thigh element e which forms the lower joint element, is articulated to the lower leg element 12, which forms the power transmission element.
  • the passive actuator 24 exerts a torque in which a tensile force is applied by the actuator 24 away from the pivot axis 8, ie eccentrically with respect to this axis.
  • FIG. 6 shows the illustration from FIG. 5 with the same ground contact element 22.
  • the difference from FIG. 5 is that the thigh element 6, ie the lower joint element, is longer.
  • a connection of the thigh element 6 or the lower leg element 12 on the leg of the wearer is not IN ANY. This results in freedom of movement along the arrows 30.
  • the joints that connect the pelvic element 10 to the thigh element 6, the lower leg element 12 and the ground contact element 22 mean that movement is only possible in one plane and breaking out of this plane is not possible.

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  • 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

L'invention concerne un dispositif orthopédique destiné à soutenir un membre inférieur et/ou un bas de dos d'un utilisateur (2), le dispositif orthopédique présentant au moins un élément articulé supérieur (4), au moins un élément articulé inférieur (6) qui, par rapport à l'élément articulé supérieur (4) est peu rotatif, et au moins un actionneur passif qui est conçu pour appliquer un couple de rotation à l'élément articulé supérieur (4) et/ou à l'élément articulé inférieur permettant ainsi de faire tourner l'élément articulé supérieur (4) par rapport à l'élément articulé inférieur (6), le dispositif orthopédique présente au moins un élément de contact au sol (22) qui est relié à l'élément articulé inférieur (6) de manière à ce que, lorsque le dispositif est porté, le couple de rotation appliqué par l'au moins un actionneur passif transmet, par l'intermédiaire de l'élément de contact avec le sol (22), une force dans le sol sur lequel se trouve l'utilisateur (2).
PCT/EP2021/070154 2020-07-21 2021-07-19 Dispositif orthopédique destiné à soutenir un membre d'un patient WO2022018028A1 (fr)

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DE102020119166.9A DE102020119166A1 (de) 2020-07-21 2020-07-21 Orthopädietechnische Einrichtung zum Unterstützen einer unteren Extremität eines Benutzers
DE102020119166.9 2020-07-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023230727A1 (fr) * 2022-06-02 2023-12-07 B-Temia Inc. Structure dorsale articulée sacro-lombaire à haute mobilité et à transfert de charge efficace pour structures orthétiques

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US443113A (en) 1890-12-23 Spring body-brace
CN101175456B (zh) * 2005-04-13 2013-03-27 加利福尼亚大学董事会 半机动下肢外骨架
US8474672B1 (en) 2011-03-29 2013-07-02 Michael R. Keith Hiker's buddy apparatus for sharing with a hiker the carrying load of a backpack
JP5769057B2 (ja) * 2011-03-25 2015-08-26 国立研究開発法人農業・食品産業技術総合研究機構 作業用補助具
US20160317340A1 (en) * 2014-12-18 2016-11-03 Ganesh Ram Jangir An improved belt system for body support
US9492300B2 (en) 2014-06-18 2016-11-15 Mawashi Protective Clothing Inc. Exoskeleton and method of using the same
US20170196712A1 (en) 2011-06-10 2017-07-13 The Regents Of The University Of California Trunk supporting exoskeleton and method of use
US9808073B1 (en) 2014-06-19 2017-11-07 Lockheed Martin Corporation Exoskeleton system providing for a load transfer when a user is standing and kneeling
US20170360588A1 (en) 2011-06-10 2017-12-21 The Regents Of The University Of California Trunk supporting exoskeleton and method of use
US9980873B2 (en) 2015-06-26 2018-05-29 U.S. Bionics, Inc. And use of a leg support exoskeleton

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US443113A (en) 1890-12-23 Spring body-brace
CN101175456B (zh) * 2005-04-13 2013-03-27 加利福尼亚大学董事会 半机动下肢外骨架
JP5769057B2 (ja) * 2011-03-25 2015-08-26 国立研究開発法人農業・食品産業技術総合研究機構 作業用補助具
US8474672B1 (en) 2011-03-29 2013-07-02 Michael R. Keith Hiker's buddy apparatus for sharing with a hiker the carrying load of a backpack
US20170196712A1 (en) 2011-06-10 2017-07-13 The Regents Of The University Of California Trunk supporting exoskeleton and method of use
US20170360588A1 (en) 2011-06-10 2017-12-21 The Regents Of The University Of California Trunk supporting exoskeleton and method of use
KR102083035B1 (ko) * 2011-06-10 2020-02-28 더 리전츠 오브 더 유니버시티 오브 캘리포니아 트렁크 지지 외골격 및 그 사용방법
US9492300B2 (en) 2014-06-18 2016-11-15 Mawashi Protective Clothing Inc. Exoskeleton and method of using the same
US9808073B1 (en) 2014-06-19 2017-11-07 Lockheed Martin Corporation Exoskeleton system providing for a load transfer when a user is standing and kneeling
US20160317340A1 (en) * 2014-12-18 2016-11-03 Ganesh Ram Jangir An improved belt system for body support
US9980873B2 (en) 2015-06-26 2018-05-29 U.S. Bionics, Inc. And use of a leg support exoskeleton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023230727A1 (fr) * 2022-06-02 2023-12-07 B-Temia Inc. Structure dorsale articulée sacro-lombaire à haute mobilité et à transfert de charge efficace pour structures orthétiques

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