EP4166125A1 - Orthopädische vorrichtung zur unterstützung der entameisenung mit motorisierungsmitteln und mitteln zum spreizen der oberschenkel eines patienten - Google Patents

Orthopädische vorrichtung zur unterstützung der entameisenung mit motorisierungsmitteln und mitteln zum spreizen der oberschenkel eines patienten Download PDF

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Publication number
EP4166125A1
EP4166125A1 EP22200516.7A EP22200516A EP4166125A1 EP 4166125 A1 EP4166125 A1 EP 4166125A1 EP 22200516 A EP22200516 A EP 22200516A EP 4166125 A1 EP4166125 A1 EP 4166125A1
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EP
European Patent Office
Prior art keywords
patient
thighs
leg
segments
arm
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.)
Pending
Application number
EP22200516.7A
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English (en)
French (fr)
Inventor
Rami Haidar
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Wewalk Tech
Original Assignee
Wewalk Tech
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 Wewalk Tech filed Critical Wewalk Tech
Publication of EP4166125A1 publication Critical patent/EP4166125A1/de
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
    • A61H1/0255—Both knee and hip of a patient, e.g. in supine or sitting position, the feet being moved together in a plane substantially parallel to the body-symmetrical plane
    • A61H1/0262—Walking movement; Appliances for aiding disabled persons to walk
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0157—Constructive details portable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1207—Driving means with electric or magnetic drive
    • A61H2201/1215—Rotary drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/14—Special force transmission means, i.e. between the driving means and the interface with the user
    • A61H2201/1436—Special crank assembly
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1619—Thorax
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1628—Pelvis
    • A61H2201/1633—Seat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/164—Feet or leg, e.g. pedal
    • A61H2201/1642—Holding means therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1657—Movement of interface, i.e. force application means
    • A61H2201/1676—Pivoting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61H2203/00—Additional characteristics concerning the patient
    • A61H2203/04—Position of the patient
    • A61H2203/0425—Sitting on the buttocks

Definitions

  • the present invention relates to an orthopedic device for aiding ambulation and which can be used for rehabilitation of the type comprising at least one rigid frame, wheels, a crankset and a saddle.
  • the document EP3598961 describes an orthopedic device for aiding ambulation and which can be used to rehabilitate walking, in particular for patients with multiple disabilities and with motor problems.
  • This device comprises a base which comprises rollers, a saddle support equipped with a saddle and articulated arms arranged on either side of the saddle support.
  • the end of each of the articulated arms comprises an element for wedging the patient's foot or leg which is mounted adjustable in position according to the width of the base. This wedging element makes it possible to separate the patient's legs on either side of the saddle, thus avoiding friction between the saddle and the patient's thighs.
  • the aforementioned document describes a motorized embodiment of the device.
  • the articulated arms include a motor on each of their joints. These motors must then be controlled to simulate walking and train the patient's lower limbs. It turns out that the motors being too numerous, their control with a view to simulating walking is complicated. In addition, these motors are fragile and it is difficult to connect them to a source power supply. It also turns out that the device described in the aforementioned document is difficult to direct, either by the patient or by an assistant who pushes the device. Finally, when the device is fitted with a foot-rest sole, the patient finds it difficult to move and encounters problems changing direction.
  • the document WO2012/049442 describes a walking rehabilitation device which comprises a base equipped with wheels spaced apart along the width and length of the base.
  • This device includes a harness that supports the patient's buttocks. The patient's thighs are inserted into straps that cannot be pulled apart. This device therefore does not make it possible to adjust the spacing of the patient's thighs and it does not comprise a pedal.
  • the document JP2007014698 describes a device that allows patient ambulation. This device does not include a saddle holder, nor a wedging element for the patient's foot or leg that is adjustable and lockable in position depending on the width of the device. This device also does not include a pedal.
  • the document CN107874984 discloses a walking aid device which includes a belt restraining the patient. The patient's legs are held at two uprights of the support, which cannot be moved apart. This device does not include a pedal.
  • document KR2018 0123939 describes an ambulation aid device which comprises an exoskeleton mounted on a mobile support comprising rollers.
  • the two uprights on which the lower limbs of the patient are fixed cannot be separated from each other, so as to adjust the spacing of the patient's thighs.
  • This device does not include a pedal.
  • An object of the present invention is to resolve any of the drawbacks linked to the use of the device of the prior art.
  • an object of the present invention is to provide a walking aid device which comprises a pedal and makes it possible to adjust the spacing of the patient's thighs and feet/legs.
  • a walking aid device which comprises a pedal and makes it possible to adjust the spacing of the patient's thighs and feet/legs.
  • Such a device makes it possible to adapt perfectly to the morphology of the patient and to his pathology.
  • the presence of the pedal implies precise positioning of the various parts of the patient's lower limbs so as not to cause injury when using the device.
  • the present invention aims to remedy these drawbacks with a totally innovative approach.
  • the present invention relates to a device for assisting the ambulation of a patient comprising a frame equipped with wheels spaced along the width and length of said frame, a saddle support surmounting said frame and extending substantially vertically, said ambulation aid device comprising two mobile segments arranged on either side of said saddle support and belonging to a crankset, characterized in that each mobile segment is articulated around an axis transverse to said frame and slides along parallel longitudinal rails, said ambulation aid device further comprising a wedging element for the patient's foot or leg and means for spreading the patient's thighs arranged on either side on the other of said saddle support, said spacer means following the reciprocating movement of the patient's lower limbs held by said wedging elements and by said spacer means, when the patient is installed on said device.
  • the presence of the means for separating the patient's thighs or legs enables the patient's thighs, legs, knees and feet to be properly positioned according to an alignment which respects the physiology of the joints.
  • the knees in particular can thus be put in a position which does not prevent walking and which does not cause injury to the joint.
  • the spacing means also make it possible to correct the position of the patient's hips, which determines the position of the lower limbs of the latter.
  • the element for wedging the leg or the foot and the means for separating the thighs or the leg thus form means for guiding the leg during the walking movement.
  • said means for separating the thighs comprise two lower side plates mounted parallel to each other on the seat post, on either side of the latter, said lower side plates supporting respectively slender arms to which are attached supports for the thigh or leg receptacle, said slender arms pivoting in a synchronized manner from front to rear and vice versa around a first upper transverse axis and with the aid of connecting rods pivoting around 'secondary axes to move alternately from a first position to a second position, the rotation of a long arm in one direction causing the rotation of the other opposite arm in the opposite direction, and vice versa.
  • This solution makes it possible to accompany the movement of the patient's gait by guiding his alternating movements by keeping his thighs in a determined position and by imposing a natural and fluid gait.
  • each lower side plate is fixed to a double central jaw enclosing the saddle tube and is angularly adjustable individually with respect to said central jaw.
  • each lower side plate has arcuate adjustment slots cooperating with screws fixed to the central double jaw.
  • each lower side plate is traversed in its thickness by a guide groove arcuate inside which slide pairs of rings integral with the slender arms.
  • This solution allows a fluid and guided movement of the slender arms and the most natural possible gait of the patient.
  • each arcuate guide groove comprises front and rear abutments against which the rings can rest respectively in the first and third positions.
  • each slender arm comprises a pair of stabilizing and guiding pads bearing constantly against the outer side faces of the corresponding lower side plates.
  • This solution makes it possible to prevent rehabilitation from being carried out correctly, for example with jolts or untimely lateral movements.
  • said device comprises means for driving the arms forming the crankset, said driving means being adapted to alternately drive said movable arms in a rotational movement combined with a translation. Since the pedal is activated due to an external force, it causes the device of the invention to move and the patient to walk.
  • the drive means can, for example, be drive means in alternating rotation of the ends of the mobile arms.
  • the alternative drive is obtained by means of selected gears known to those skilled in the art.
  • the device comprises a single common motorization device for controlling both the reciprocating movement of the pedal assembly and the movement of the rear wheels.
  • the motorization device comprises a central motor driving on the one hand the arms of the crankset by means of a first belt connected to a first geared motor and on the other hand the rear wheels by means of a second belt connected to a second disengageable gearmotor.
  • the device comprises a first central motor driving the arms of the crankset and independent motors for driving each rear wheel.
  • the device provided with a joystick/manual piloting lever integrated into an arm rest and piloting one and/or the other of the motors.
  • each element for wedging the patient's foot comprises a spring-loaded front leg piece to exert an elastic return force on the lower part of the patient's leg, in particular from under his knee.
  • THE figures 1 to 3 relate to a first embodiment of a walking aid device D and equipped on the one hand with a motorization member 200 and on the other hand with a device 8 for spreading the thighs of a patient.
  • This walking aid device D comprises a mechanically welded rigid frame 1, such as a central longitudinal beam, resting on two rear drive wheels 11 and two front directional castors 13 mounted freely pivoting about a vertical axis, the rear wheels 11 being significantly further apart than the front wheels 13.
  • the device D also comprises a saddle post 7 which extends vertically and on which a saddle made for example of plastic material (polymer) can be fixed, and a handlebar 2 for the steer manually, when possible.
  • the saddle support 7 comprises a hollow tube 71 which extends horizontally along the length of the device D and of which a sliding part 71' extends downwards.
  • a front tube 73 erected vertically from the horizontal hollow tube 71 is also provided to place an element for retaining and/or maintaining the patient's bust.
  • the ambulation aid device D is also equipped with a pedal system 90 comprising in particular two parallel longitudinal segments 91 and 93 whose front ends 91' and 93' have slideways mounted to slide linearly along parallel longitudinal rails 10 belonging to the central beam 1 and whose rear ends are articulated on axes 91 "and 93" connected to side cranks 204 belonging to a motorization member 200 described in more detail later.
  • a pedal system 90 comprising in particular two parallel longitudinal segments 91 and 93 whose front ends 91' and 93' have slideways mounted to slide linearly along parallel longitudinal rails 10 belonging to the central beam 1 and whose rear ends are articulated on axes 91 "and 93" connected to side cranks 204 belonging to a motorization member 200 described in more detail later.
  • crankset 90 comprises right and left pedal rods 4 each sliding linearly along a corresponding segment 91 or 93 simultaneously with the combined sliding movement (along the rails 10) and rotation (around the axes rear 91" and 93") of the latter thanks to the 200 motorization system.
  • Each pedal rod 4 carries a lateral footrest 6, preferably adjustable in width and height (relative to the ground).
  • the toe-clip 6 is preferably rotatably mounted on the lower end of the corresponding pedal rod 4 (right or left).
  • the angular position of the footrest is also preferably variable and can be fixed in a chosen position. Angular locking means (not shown) which make it possible to lock its angular position relative to the pedal rod 4 can therefore be provided.
  • the footrest 6 comprises means for fixing the patient's foot which are not shown in the aforementioned figures, for the sake of clarity and simplification.
  • a spring-type shock absorption system can also be incorporated into the pedals between the segments and the toe clips 6, as shown in the figure 13 .
  • the motorization member 200 comprises a single central motor 201 secured to a rear part of the device D and supplied with current by an electric battery 51 mounted at the rear and above the central beam 1.
  • This battery 51 is optionally removable and can be recharged without the presence of the device of the invention.
  • the central motor 201 is connected on the one hand to the crankset 90, and in particular to the segments 91 and 93 using a first toothed belt 202 engaged with a first geared motor 203 integral with the crank 204 and, on the other part to the drive axle 205 of the rear wheels 11 with the aid of a second toothed belt 206 engaged with a second geared motor 207.
  • a braking system 208 by lack of current is also provided on the drive axle 205 to secure the device D on slopes.
  • the central motor 201 thus makes it possible to drive the lateral cranks 204 in rotation, which cause the segments 91 and 93 to pivot around the axes 91" and 93" while causing them to slide along the rails 10 of the central beam 1, which activates the sliding of the pedal rods 4 along the segments 91 and 93 in a regular and repetitive linear alternating movement.
  • the central motor 201 also makes it possible to drive the rear wheels 11 in rotation around the axle 205 in order to move the ambulation aid device D forwards/backwards.
  • the ratio between the speed of movement and the speed of the crankset is therefore fixed.
  • the motorization member 200 that is to say the central motor 201, therefore makes it possible both to rotate the crankset for rehabilitation and to aid in walking, but also to move the device D forward. traction transmission to the rear wheels 11 can be disengaged and allow rehabilitation when stationary, with the device D stationary and the crankset 91/93 rotating.
  • This motorization architecture is more particularly suited to patients who can use their arms to accelerate and steer the vehicle using the handlebars 2.
  • THE figure 4 And 5 relate to a second embodiment of the member 200 for motorizing the walking aid device D.
  • the motorization member 200 comprises a first central motor 211 secured to a rear part of the device D and connected only to the segments 91 and 93 of the crankset 90 using a first toothed belt 212 engaged with a first geared motor 213 secured to a crank 214, and two secondary motors 221 and 222 each connected to a corresponding rear wheel 11.
  • a braking system by lack of current is also integrated in each secondary motor 221 and 222 in order to secure the vehicle D on slopes.
  • This configuration provides the same functionalities as the first embodiment but in addition makes it possible to decouple the forward speed of the vehicle (secondary motors) and the speed of the crankset (main motor).
  • This engine architecture is more suitable particularly for patients who can use their arms to accelerate and steer the vehicle using the handlebars 2.
  • FIG. 6 relates for its part to a third embodiment of the member 200 for motorizing the walking aid device D.
  • the motorization member 200 comprises a first central motor 231 connected only to the segments 91 and 93 of the crankset using a first toothed belt 232 engaged with a first geared motor 233 secured to a crank 214 , and two secondary motors 241 and 242 connected to each of the rear wheels.
  • An armrest 245 is mounted on the seatpost 7 and comprises a joystick 247 for controlling the secondary motors 241 and 242.
  • the central motor 231 can operate alone in order to allow rehabilitation without moving, while remaining seated on the vehicle D.
  • a brake system by lack of current is also integrated in each secondary motor 241 and 242 in order to secure the vehicle on slopes.
  • This motorization architecture is suitable for patients who cannot use their arms to accelerate and steer the vehicle, which is therefore controlled using the joystick 247.
  • Vehicle D rotates thanks to the difference in speeds between the motorized right rear wheels and left 11.
  • THE figures 7 to 12 show in more detail the means 8 for separating the patient's thighs illustrated on the figures 1 to 6 , which are illustrated in three different typical operating positions.
  • the figure 7 And 8 show the spacer means 8 in a first position in which the patient's right thigh is placed forward, and the left thigh is placed, on the opposite side, behind, according to the direction of movement of the orthopedic device for aiding the wandering.
  • FIG. 9 And 10 show the spacing means 8 in a second intermediate position, called median, in which the right and left thighs are placed substantially opposite each other after their respective movements.
  • FIG 11 And 12 show the spacer means 8 in a third position in which the right thigh is placed behind while the left thigh is placed, opposite, forward, still according to the direction of movement of the orthopedic ambulation aid device.
  • the spacer means 8 firstly comprise a first pair of right 101a and left 101b metal lower side plates fixed to the saddle support rod 7 (not shown), symmetrically and on either side thereof .
  • These lower side plates 101a and 101b are typically thick metal sheets, for example stainless steel measuring several millimeters thick, and each have a generally arcuate shape (angular sector portion).
  • first lower side plates 101a and 101b are for example identical and are fixed parallel to each other on a central vertical double jaw 102 clamped around the seat tube 7.
  • the lower side plates 101a and 101b are moreover adjustable from front to back with respect to the central double jaw 102 (and therefore also with respect to the seatpost 7) thanks to fastening means 103 such as screws.
  • Each lower side plate 101a and 101b is thus fixed in four different zones 104 (top front, bottom front, top rear, bottom rear) on the central jaw 102 by means of two pairs of screws 103.
  • Each fixing zone 104 is present in the present case in the form of a slot in the form of a household arc through the thickness of each lower side plate and receiving a screw 103, which in particular makes it possible to adapt the spacer means 8 to the morphology of the patient by tilting/pivoting the lower side plates 101a and 101b back and forth relative to the seat post 7 before tightening the pairs of screws 103.
  • the lower right side plate 101a and the lower left side plate 101b are arranged at the same level.
  • Each of the lower side plates 101a and 101b respectively carries an elongated arm 105a and 105b in the form of a perforated rigid metal strip (for example in stainless steel several millimeters thick) on which is fixed a support 106a/106b for a U-shaped receptacle 94a intended to receive the thigh (right or left depending on the plate/ruler) of the patient.
  • the long right 105a and left 105b arms are arranged parallel to each other on either side of the seat post 7.
  • the slender right arm 105a has a right connecting tab 112a with a corresponding lower side plate 101a. More specifically, the lower right side plate 101a is provided with a right-hand through groove 107a in the form of an arc inside which slide a pair 113a of front and rear guide rings, these rings being moreover each screwed on a corresponding connecting tab 112a.
  • the slender left arm 105b has a left connecting tab 112b with a corresponding lower side plate 101b. More specifically, the lower left side plate 101b is provided with a left-hand through groove 107b in the form of an arc inside which slide a pair 113b of front and rear guide rings, these rings being moreover each screwed on a corresponding connecting tab 112b.
  • the lower right-hand side plate 101a is also provided with a pair 108a of front and rear stops (depending on the direction of movement of the orthopedic walking aid device) against which the front and rear rings 113a bear respectively when of their sliding inside the right-hand arcuate groove 107a between the first and third extreme positions.
  • the lower left side plate 101b is provided with a pair 108b of front and rear stops (depending on the direction of movement of the orthopedic walking aid device) against which the front and rear rings 113b bear respectively when they slide inside the left arcuate groove 107b between the first and third extreme positions.
  • the slender right arm 105a is articulated around a first upper transverse axis 120a passing through the hollow tube 71 and is connected to a lower front part 71' of the said hollow tube 71 of the seat post 7 using a system of front connecting rods which are articulated respectively around transverse axes parallel to each other and to the upper transverse axis 120a.
  • a first large straight connecting rod 115a extends between a first straight pivot pin 117a connected to the long right arm 105a and a second right pivot pin 118a
  • a second small straight connecting rod 116a extends between the second right-hand pivot pin 118a and a third right-hand pivot pin 119a, which is linked to the lower front part 71' of the hollow tube 71.
  • the second right-hand pivot pin 118a is said to be "free". because it is connected to no other part than the two connecting rods 115a and 116a.
  • the slender left arm 105b is articulated around a first upper transverse axis 120b passing through the hollow tube 71 and is connected to a lower front part 71' of the said hollow tube 71 of the seatpost 7 using of a system of front connecting rods which are articulated respectively around transverse axes parallel to each other and to the upper transverse axis 120b.
  • a first large left connecting rod 115b extends between a first left pivot axis 117b linked to the slender left arm 105b and a second left pivot axis 118b
  • a second small rectilinear connecting rod on the left 116b extends between the second left pivot axis 118b and a third left pivot axis 119b connected to the lower front part 71' of the hollow tube 7.
  • the second axis of left pivot 118b is said to be “free” because it is not connected to any part other than the two connecting rods 115b and 116b.
  • the two third pivot axes on the right 119a and on the left 119b are collinear.
  • pairs of guide and stabilizing pads on the right 130a and on the left 130b in the shape of a half sphere/ball are respectively linked to a lower part of each of the elongated arms on the right 105a and on the left 105b, below the legs right 112a and left 112b link.
  • These right guide pads 130a and on the left 130b respectively bear permanently against an external lateral face (also called running surface) of each of the right 101a and left 101b lower side plates throughout the alternating forward and backward movement of said slender right arms 105a and left 105b with respect to said plates, in order to accompany the movement explained in more detail below.
  • the right connecting rods 115a/116a and the left connecting rods 115b/116b have also pivoted with respect to their respective axes on the right 117a/118a/119a and on the left 117b/118b/119b in order to end up in the second position.
  • the right connecting rods 115a/116a and the left connecting rods 115b/116b also continued to pivot relative to their respective right 117a/118a/119a and left 117b/118b/119b axes in order to end up in third place.
  • the pedals and the means for separating the patient's thighs of the ambulation aid device D produce the movements of walking independently of the position in space of the patient's hip and knee joints, so that the operation is not influenced by the height of said patient.
  • the pedal also operates without motorization, by pushing the ambulation aid device D via an assistant.
  • FIG 13 illustrates in detail a part of the crankset 90 and in particular the pedal rods 4 and the associated toe clips 6.
  • Each toe clip 6 is each equipped with a support leg 16 provided with an internal torsion spring (not shown) which can pivot about a transverse axis 18 connected to the footrest 6 so as to form an elastic return member exerting a force on the lower part of the patient's leg, from under his knee.
  • the role of this leg piece 16 is thus to straighten the patient's leg when its position is substantially perpendicular to the ground.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Rehabilitation Tools (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
EP22200516.7A 2021-10-18 2022-10-10 Orthopädische vorrichtung zur unterstützung der entameisenung mit motorisierungsmitteln und mitteln zum spreizen der oberschenkel eines patienten Pending EP4166125A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2111024A FR3128114A1 (fr) 2021-10-18 2021-10-18 Dispositif orthopédique d’aide à la déambulation comportant des moyens de motorisatoin et des moyens d’écartement des cuisses du patient

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EP4166125A1 true EP4166125A1 (de) 2023-04-19

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EP22200516.7A Pending EP4166125A1 (de) 2021-10-18 2022-10-10 Orthopädische vorrichtung zur unterstützung der entameisenung mit motorisierungsmitteln und mitteln zum spreizen der oberschenkel eines patienten

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007014698A (ja) 2005-07-11 2007-01-25 Tokyo Univ Of Science 歩行補助装置
WO2012049442A1 (en) 2010-10-11 2012-04-19 Morow Limited Exercise and gait-training apparatus
WO2017093830A1 (es) * 2015-12-01 2017-06-08 Luna Molina Freddy Leonardo Exoesqueleto dual convertible en asistente caminador y sillas de ruedas
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US9907721B2 (en) 2012-03-29 2018-03-06 GaitTronics inc. Control system and device for patient assist
WO2017093830A1 (es) * 2015-12-01 2017-06-08 Luna Molina Freddy Leonardo Exoesqueleto dual convertible en asistente caminador y sillas de ruedas
CN107874984A (zh) 2016-09-29 2018-04-06 龙华科技大学 多功能下肢步态复健与助走机器装置结构改良
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CN109124907A (zh) * 2018-07-23 2019-01-04 河北工业大学 一种多功能助行装置
EP3598961A1 (de) 2018-07-25 2020-01-29 Rami Haidar Orthopädische gehhilfevorrichtung
EP3903756A1 (de) * 2020-04-27 2021-11-03 Rami Haidar Orthopädische gehhilfevorrichtung, die zur rehabilitation des gehvermögens verwendet werden kann und mittel zum spreizen der oberschenkel des patienten umfasst

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