WO2014189032A1 - 訓練装置 - Google Patents
訓練装置 Download PDFInfo
- Publication number
- WO2014189032A1 WO2014189032A1 PCT/JP2014/063300 JP2014063300W WO2014189032A1 WO 2014189032 A1 WO2014189032 A1 WO 2014189032A1 JP 2014063300 W JP2014063300 W JP 2014063300W WO 2014189032 A1 WO2014189032 A1 WO 2014189032A1
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- WIPO (PCT)
- Prior art keywords
- force
- limb
- motor
- switch
- training
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- 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
- A61H1/0274—Stretching or bending or torsioning apparatus for exercising for the upper limbs
- A61H1/0281—Shoulder
-
- 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
- A61H1/008—Apparatus for applying pressure or blows almost perpendicular to the body or limb axis, e.g. chiropractic devices for repositioning vertebrae, correcting deformation
-
- 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
- A61H1/005—Moveable platforms, e.g. vibrating or oscillating platforms for standing, sitting, laying or leaning
-
- 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
- A61H23/00—Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms
- A61H23/02—Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms with electric or magnetic drive
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36003—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of motor muscles, e.g. for walking assistance
-
- 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
- A61H2201/10—Characteristics of apparatus not provided for in the preceding codes with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy
-
- 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
- A61H2201/1481—Special movement conversion means
- A61H2201/149—Special movement conversion means rotation-linear or vice versa
-
- 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
- A61H2201/1664—Movement of interface, i.e. force application means linear
-
- 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
- A61H2201/50—Control means thereof
- A61H2201/5023—Interfaces to the user
-
- 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
- A61H2203/0431—Sitting on the buttocks in 90°/90°-position, like on a chair
-
- 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
- A61H2205/00—Devices for specific parts of the body
-
- 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
- A61H2205/00—Devices for specific parts of the body
- A61H2205/06—Arms
Definitions
- the present disclosure relates to an apparatus for training a patient's limb that requires recovery of motor function.
- Patent Document 1 discloses a training device including two switches for being pressed down by a patient's upper limb. This training apparatus repeatedly generates an extension movement and a flexion movement of the upper limb by repeatedly pressing two switches on the upper limb of the patient.
- Patent Document 2 discloses a training apparatus that includes an attachment part to a patient's upper limb and four wires that suspend the attachment part. This training device assists the movement of the upper limbs by winding and unwinding four wires according to the movement of the upper limbs.
- an object of the present disclosure is to provide an apparatus capable of performing effective training with a simple configuration.
- a training device is a device for training a limb, and includes a target unit for touching the limb and an upward force acting upward on the limb, And a force generation mechanism that generates electric power while allowing.
- a training apparatus 1 is for training an upper limb of a patient who needs to recover a motor function.
- An example of a patient who needs to recover motor function is a patient whose body part remains paralyzed due to cerebrovascular disease such as stroke.
- the training apparatus 1 includes a work table 2, a force generation mechanism 3, an electrical stimulus generation unit 4, a vibration stimulus generation unit 5, and a control unit 6.
- the work table 2 is installed on the floor, and a patient chair 11 (see FIG. 5) is arranged around the work table 2.
- “front / rear / left / right” means a direction in which the near side viewed from the patient is the rear side and the far side is the front side.
- the work table 2 is composed of an aluminum frame or the like and has a substantially rectangular parallelepiped outer shape. The long side of the work table 2 is along the left-right direction. Legs 20 are provided at each of the lower four corners of the work table 2.
- the upper part 2a of the work table 2 is located at the height of the chest of the patient sitting on the chair 11.
- the top 2 a is provided with a top plate 21, a first support plate 22, a second support plate 23, and a breast support portion 24.
- the top plate 21 is disposed horizontally, and is positioned at the center of the work table 2 in the left-right direction and near the rear edge of the work table 2.
- the first support plate 22 is adjacent to the rear side of the top plate 21 and protrudes in a tongue shape from the rear edge of the work table 2.
- a first switch 25 is provided on the first support plate 22 to be operated by the patient's upper limb. That is, the training device 1 further includes a first switch 25.
- the first switch 25 has a dome-shaped push button 25a, and the first switch 25 is switched on and off by pressing the push button 25a.
- the push button 25a is a first target portion T1 for making the patient touch the upper limb.
- a guide portion 21a extending in the front-rear direction and a front-rear slide portion 21c mounted on the guide portion 21a are provided on the top plate 21a.
- the position of the front / rear slide part 21c can be changed along the guide part 21a.
- a vertical column 21b and an upper / lower slide unit 21d attached to the column 21b are provided on the front / rear slide part 21c.
- the position of the vertical slide part 21d can be changed along the support column 21b.
- the second support plate 23 is attached to the upper and lower slide portion 21d, and protrudes rearward to face the top plate 21.
- the 2nd switch 26 for operating with a patient's upper limb is provided. That is, the training device 1 further includes a second switch 26.
- the second switch 26 has a dome-shaped push button 26a, and the on / off of the second switch 26 is switched by pressing the push button 26a.
- the push button 26a is a second target portion T2 for making the patient touch the upper limb.
- the second switch 26 is positioned forward relative to the first switch 25 and is positioned upward relative to the first switch 25.
- An inclined portion 23a is formed at the rear portion of the second support plate 23 so as to become lower toward the rear.
- the inclined part 23 a makes it difficult for the patient's upper limb to press the push button 26 a of the second switch 26 to be caught on the rear part of the second support plate 23.
- a vertical upright wall 23 b is formed in the front portion of the second support plate 23. The standing wall 23b prevents the patient's upper limb from excessively moving forward and falling off the second support plate 23.
- the positions of the second support plate 23 and the second switch 26 in the front-rear direction can be adjusted by changing the position of the front-rear slide part 21c. That is, the front / rear slide portion 21c constitutes an adjustment mechanism A1 for adjusting the position of the second switch 26 in the front / rear direction.
- the heights of the second support plate 23 and the second switch 26 can be adjusted by changing the position of the vertical slide portion 21d. That is, the vertical slide portion 21d constitutes the height adjustment mechanism A2 of the second switch 26.
- the training apparatus 1 further includes adjustment mechanisms A1 and A2 that adjust the position of the second switch 26 in the front-rear direction and the up-down direction.
- a bellows-like cover 27 is placed on the guide portion 21a behind the front and rear slide portion 21c.
- the rear end portion of the cover 27 is fixed to the rear end portion of the guide portion 21a, and the front end portion of the cover 27 is fixed to the front / rear slide portion 21c.
- the cover 27 expands and contracts as the position of the front / rear slide portion 21c is changed.
- the cover 27 prevents the patient's upper limb from touching the guide portion 21a.
- a fall prevention unit 28 that generates a drag force against the lowering of the second switch 26 during the height adjustment is provided at the upper end of the column 21b.
- the fall prevention unit 28 includes a winding shaft 28a that protrudes forward from the column 21b, and a leaf spring 28b that is wound around the winding shaft 28a. The end of the leaf spring 28b is fixed to the vertical slide portion 21d. ing.
- the plate spring 28b is pulled out from the take-up shaft 28a as the vertical slide portion 21d moves downward, and generates a drag force against the lowering of the vertical slide portion 21d.
- the chest support portion 24 includes a chest support frame 24a extending along the periphery of the first support plate 22, and a cushion 24b covering the chest support frame 24a. Both end portions of the chest support frame 24 a are fixed to the upper portion 2 a of the work table 2.
- the chest contact portion 24 restricts movement of the patient's chest toward the switches 25 and 26. When the movement of the chest toward the switches 25 and 26 is restricted when trying to operate the switches 25 and 26, it is necessary to move the upper limbs by that much. For this reason, the momentum of the upper limbs can be ensured by restricting the movement of the chest.
- the first support plate 22 may have a rectangular shape with long sides along the front-rear direction.
- the chest contact portion 24 may be configured by a cushion 24 c provided only on the short side on the near side of the first support plate 22. According to such a configuration, the occupation range of the first support plate 22 and the chest support portion 24 in the left-right direction is reduced, and the operation of the upper limb of the patient who cannot raise the elbow is not hindered.
- the force generation mechanism 3 includes a sling 30, a wire 31, a wire guide portion 32, and a motor 33.
- the sling 30 is an attachment portion to the patient's wrist and has a belt shape surrounding the wrist.
- the wire 31 is connected to the sling 30 and extends upward from the sling 30.
- the wire guide portion 32 includes a frame body 36A, two connecting frames 36B, two top plates 37A and 37B, and two pulleys 38A and 38B.
- the frame body 36A is made of, for example, an aluminum frame and has a rectangular shape.
- the frame body 36 ⁇ / b> A is horizontally arranged above the work table 2 with its long side along the front-rear direction.
- the connection frame 36B is, for example, an aluminum frame, and extends in the vertical direction along the left-right direction, and connects the front edge of the frame 36A and the front edge of the work table 2.
- the top plates 37A and 37B are spanned over the upper portion of the frame 36A, the top plate 37A is located near the rear edge of the frame 36A, and the top plate 37B is located near the front edge of the frame 36A.
- the pulley 38A is attached to the center of the lower portion of the top plate 37A and is located above the sling 30.
- the attachment position of the pulley 38A with respect to the top plate 37A can be adjusted in the front-rear direction. That is, the force generation mechanism 3 further includes an adjustment mechanism A3 for adjusting the position of the pulley 38A in the front-rear direction.
- the pulley 38B is attached to the lower center of the top plate 37B.
- the wire 31 extending upward from the sling 30 is hooked on the pulley 38A and directed to the front side, and is hooked on the pulley 38B and directed downward.
- the front end portion of the wire 31 that is hooked on the pulley 38 ⁇ / b> B and directed downward is connected to the motor 33.
- the motor 33 is located in the vicinity of the lower end of the connection frame 36B and is fixed in the work table 2. As shown in FIG. 4, the motor 33 includes an output shaft 33 a that rotates about an axis along the left-right direction, a reel 34 provided at the tip of the output shaft 33 a, and a rotation angle sensor 35 of the output shaft 33 a. Have.
- the rotation angle sensor 35 is a rotary encoder, for example.
- the reel 34 is positioned below the pulley 38B and winds the wire 31 directed downward from the pulley 38B.
- a spiral groove 34a is provided on the outer peripheral surface of the reel 34, and the wire 31 is wound around the reel 34 along the groove 34a.
- the “winding radius” of the wire 31 is the distance between the central axis of the wire 31 wound around the reel 34 and the central axis of the reel 34.
- the motor 33 is torque-controlled by the control unit 6. As described above, since the winding radius of the wire 31 is stable and the friction between the wires 31 is prevented, the ratio between the torque applied to the reel 34 and the tension applied to the wire 31 is substantially constant. Become. Therefore, the tension applied to the wire 31 is controlled by controlling the torque of the motor 33.
- the torque-controlled motor 33 applies tension to the wire 31 while allowing the sling 30 to move up and down.
- the tension applied to the wire 31 by the motor 33 is an upward force that acts upward on the upper limb of the patient to whom the sling 30 is attached. That is, the force generation mechanism 3 generates an upward force that acts upward on the upper limb of the patient while allowing the patient's upper limb to move up and down.
- Unloading force is a force that reduces muscle strength that supports the weight of the upper limb. The magnitude of the unloading force is less than the weight of the upper limb.
- the electrical stimulation generator 4 includes a pair of flexible sheet-like conductors 40A and 40B, and a power supply cable 41 connected to each of the conductors 40A and 40B.
- the conductors 40A and 40B are affixed to a part of the patient's upper limb that is involved in exercise during training.
- the electrical stimulation generator 4 receives electric power supplied via the power supply cable 41 and generates an electric current between the conductors 40A and 40B to apply electrical stimulation to the patient's muscles.
- a connector 42 is provided at the end of the power supply cable 41 opposite to the conductors 40A and 40B.
- the vibration stimulus generator 5 includes, for example, a vibrating body 50 with a built-in vibration motor and a power supply cable 51 connected to the vibrating body 50.
- the vibrating body 50 is affixed to an area of the patient's upper limb that is involved in exercise during training with an adhesive tape or the like.
- the vibration stimulation generator 5 receives power supply via the power supply cable 51 and applies vibration stimulation from the vibrating body 50 to the upper limb of the patient.
- a connector 52 is provided at the end of the feeding cable 51 on the opposite side of the vibrating body 50.
- FIG. 1 illustrates a case where one electrical stimulus generator 4 and two vibration stimulus generators 5 are provided.
- the control unit 6 includes a main body 60, a terminal 61, and a monitor 62, and controls the motor 33, the electrical stimulus generator 4 and the vibration stimulus generator 5.
- the main body 60 incorporates a control computer and a servo controller, and is arranged on the left side in the work table 2.
- a plurality of connectors 63 ⁇ / b> A connected to the control computer are provided on the upper portion of the rear surface (front surface) of the main body 60.
- the connector 63A is connected to the connector 42 of the electrical stimulus generator 4 or the connector 52 of the vibration stimulus generator 5.
- the switches 25 and 26 and the monitor 62 are also connected to the control computer in the main body 60 via a cable (not shown).
- a motor 33 is connected to the servo controller via a cable (not shown).
- the terminal 61 is a connector unit having the same plurality of connectors 63B as the connector 63A.
- the connector 63B is provided on the rear surface (front surface) of the terminal 61.
- the terminal 61 is fixed to the right side in the work table. That is, the main body 60 and the terminal 61 are arranged so as to sandwich the switches 25 and 26 when viewed from the patient side.
- the connector 63B is connected to a control computer in the main body 60 via a cable (not shown), and is parallel to the connector 63A of the main body 60 with respect to the control computer. For this reason, even if the connector 42 and the connector 52 are connected to the connector 63B, the electrical stimulus generator 4 and the vibration stimulus generator 5 can be connected to the control computer in the same manner as the connector 63A. . Thereby, it is possible to select whether the electrical stimulus generator 4 and the vibration stimulus generator 5 are connected to the left side or the right side with respect to the switches 25 and 26 depending on which of the upper and lower limbs is to be trained.
- the monitor 62 is a liquid crystal display, for example, and is fixed to the connection frame 36B in a state of facing the patient.
- the monitor 62 may be a touch panel and may be used as an input device for the control computer.
- the control unit 6 functions as a motor control device MC of the force generation mechanism 3. That is, the force generation mechanism 3 further includes a motor control device MC, and the motor 33 and the motor control device MC constitute a servo mechanism.
- the control unit 6 as the motor control device MC performs torque control on the motor 33.
- the torque target value is set by multiplying the target value of the tension of the wire 31 by the winding radius of the wire 31.
- the target value of the tension of the wire 31 can be set in advance by an input device (not shown) such as a keyboard.
- the control unit 6 supplies electric power via the power supply cables 41 and 51 to drive the electrical stimulus generator 4 and the vibration stimulus generator 5.
- the power supplied to the electrical stimulus generator 4 can be set in advance by an input device (not shown) such as a keyboard.
- the timing for supplying power to the vibration stimulus generator 5 can also be preset by an input device such as a keyboard.
- the vibration stimulus generator 5 gives a vibration stimulus to the upper limb according to the on / off of the switches 25 and 26.
- the vibration stimulus generator 5 gives a vibration stimulus to the upper limb according to the on / off of the switches 25 and 26.
- a plurality of vibration stimulus generators 5 may be configured to shift the drive timing.
- the setting which drives the vibration stimulus generation part 5 continuously during training may be enabled, and the setting which does not drive the vibration stimulus generation part 5 at all may be possible.
- the timing for driving the electrical stimulus generator 4 may be settable.
- setting the timing for driving the electrical stimulation generator 4 there is a setting for driving according to the on / off of the switches 25 and 26.
- the electrical stimulation generator 54 applies electrical stimulation to the upper limb in accordance with the on / off of the switches 25 and 26.
- driving is started when one of the switches 25 and 26 is pressed, and driving is stopped when the other of the switches 25 and 26 is pressed.
- a setting for continuously driving the electrical stimulation generation unit 4 during training may be possible, or a setting for not driving the electrical stimulation generation unit 4 at all may be possible.
- the control unit 6 displays various information on training on the monitor 62. Examples of the information to be displayed include the number of times the switches 25 and 26 are turned on / off, the time interval of turning on and off the switches 25 and 26, and the target value of the tension of the wire 31.
- the training procedure using the training device 1 will be described.
- the patient P is seated on the chair 11 on the rear side of the work table 2.
- the sling 30 is attached to the wrist of the patient P, and the conductors 40A and 40B of the electrical stimulus generator 4 and the vibrator 50 of the vibration stimulus generator 5 are affixed to the part of the patient P's upper limb that is involved in the movement.
- the unloading force generated by the force generation mechanism 3 is adjusted according to the weight of the upper limb of the patient P. That is, the target value of the tension applied to the wire 31 by the motor 33 is set.
- the current value to be supplied from the control unit 6 to the electrical stimulation generating unit 4 is set.
- the current value is set so that the joint of the upper limb does not move due to electrical stimulation.
- the timing which supplies electric power from the control part 6 to the vibration stimulus generation part 5 is set. This completes the preparation for training.
- the order of attaching the sling 30, attaching the conductors 40A and 40B, attaching the vibrating body 50, and various settings is not limited to the order described above.
- the patient P is repeatedly exercised to press the switches 25 and 26 alternately, and the upper limb of the patient P is trained. That is, the patient P is caused to perform a repetitive motion that alternately touches the target portions T1 and T2.
- the repetitive movement reaches the target number of times, one set of training is terminated.
- One set of exercises may be terminated when a preset time has elapsed.
- the force generation mechanism 3 During the repetitive motion, the force generation mechanism 3 generates an upward force acting upward on the upper limb while allowing the upper limb to move up and down. For this reason, the weight of the upper limb during repetitive exercise is continuously reduced. Since the force generation mechanism 3 only needs to generate an upward force, the configuration can be simplified.
- the force generation mechanism 3 can be configured by a set of the sling 30, the wire 31, the motor 33, and the motor control device MC. Since the target movement of the upper limb is limited to a simple movement of touching the target portions T1 and T2, the force generation mechanism 3 simply reduces the weight itself and greatly improves the ease of performing the training. Can be improved.
- the force generation mechanism 3 Since the force generation mechanism 3 generates an upward force by electric power, the upward force can be freely controlled by controlling the supplied power. Thereby, it is possible to change the upward force finely in accordance with the state of the upper limb, and to perform the repetitive motion more smoothly.
- the control unit 6 as the motor control device MC increases the upward force while the sling 30 is accelerating in the direction approaching the pulley 38A, and accelerates the sling 30 in the direction away from the pulley 38A. During the time, the upward force may be reduced.
- the upward force is increased compared to when the motor 33 is stationary, and when the motor 33 is accelerating in the direction in which the wire 31 is sent out,
- the upward force may be made smaller than when the motor 33 is stationary.
- FIG. 6 the control procedure for changing the upward force according to the rotation of the motor 33 is shown in FIG.
- rotation angle information of the motor 33 is acquired using a detection value of the rotation angle sensor 35 (S01).
- the angular velocity and angular acceleration of the motor 33 are calculated using the current and past rotation angle information (S02).
- the muscle strength of the upper limb is estimated (S03).
- the assisting force is calculated by multiplying the estimated muscle force by a predetermined ratio (S04).
- the predetermined ratio is, for example, 0 to 80%.
- the predetermined ratio may be set by an input device such as a keyboard.
- the motor 33 When the motor 33 is accelerating in the direction in which the wire 31 is wound up, it is estimated that the muscular force that raises the upper limb is generated, and thus the auxiliary force that raises the upper limb (auxiliary force for raising the upper limb) is calculated.
- the motor 33 When the motor 33 is accelerating in the direction in which the wire 31 is sent out, the generation of muscle force for lowering the upper limb is estimated, so the auxiliary force for lowering the upper limb (the auxiliary force for lowering the upper limb) is calculated.
- the auxiliary force is added to or subtracted from the unloading force (S05). Specifically, when the motor 33 is accelerating in the direction in which the wire 31 is wound, the assist force for raising the upper limb is added to the load-carrying force. When the motor 33 is accelerating in the direction in which the wire 31 is sent out, the assist force for lowering the upper limb is subtracted from the load-carrying force.
- a torque for generating a force obtained by adding or subtracting the auxiliary force to the unloading force is calculated (S06), and the motor 33 is torque-controlled using the torque as a target value (S07).
- the following control is realized by repeating the procedure shown in FIG. That is, when the motor 33 is accelerating in the direction in which the wire 31 is wound, the motor 33 is torque-controlled so as to generate a force obtained by adding an auxiliary force for raising the upper limb to the unloading force as an upward force.
- the motor 33 is torque-controlled so that a force obtained by subtracting the assist force for lowering the upper limb from the unloading force is generated as an upward force.
- the auxiliary force is calculated according to the estimated value of the muscle strength of the upper limb, the vertical movement of the upper limb can be assisted with a strength corresponding to the muscle strength of the upper limb.
- the muscle strength of the upper limb is estimated based on the rotation state of the motor 33 detected by the rotation angle sensor 35 without using a force sensor. For this reason, performing torque control according to the procedure shown in FIG. 6 also contributes to simplification of the training apparatus 1.
- the control unit 6 as the motor control device MC may change the unloading force according to the position of the sling 30.
- the unloading force may be changed according to the height of the sling 30.
- FIG. 7 is a graph illustrating the correlation between the height of the sling 30 and the load-carrying force.
- the height “low” in the figure is the height of the sling 30 when the switch 25 is pressed.
- the height “high” is the height of the sling 30 when the switch 26 is pressed.
- the height “medium” is, for example, the height of the sling 30 when the patient's arm is horizontal.
- the unloading force at the height “low” and “high” is smaller than the unloading force at the height “medium”.
- dead zones B1, B2, and B3 are provided in which the load-carrying force does not change even if the height changes.
- the dead zones B1, B2, and B3 are connected by a gentle curve.
- the height of the sling 30 can be calculated, for example, by correlating the height of the sling 30 with the load-carrying force as a function and applying the height of the sling 30 to the function.
- the correspondence relationship with the height of the sling 30 may be stored in a table, and the unloading force corresponding to the height of the sling 30 may be extracted by referring to the table.
- the unloading force may be calculated by performing linear interpolation on the value extracted from the table.
- the parameter that specifies the correlation between the position of the sling 30 and the load-carrying force may be input using an input device such as a keyboard.
- an input device such as a keyboard.
- the unloading forces R1, R2, and R3 in the dead zones B1, B2, and B3 and the widths W1, W2, and W3 of the dead zones B1, B2, and B3 may be inputable.
- the width W2 may be divided into a width W4 at a lower part from the height “middle” and a width W5 at an upper part from the height “middle”.
- the force generating mechanism 3 generates an upward force only by the tension of one wire 31 while allowing the sling 30 to move up and down. According to such a configuration, it is difficult to restrain the posture of the upper limb, so that the exercise by the patient P can be further promoted.
- the training device 1 includes switches 25 and 26 that are turned on and off by pressing the target portions T1 and T2. For this reason, it can detect that the patient touched target part T1, T2, and can grasp
- the electrical stimulation is applied to the upper limb of the patient P by the electrical stimulation generator 4.
- the muscles of the patient P can be stimulated, and the ease of performing the training can be further improved.
- production part 4 is set to such an extent that it does not produce joint movement, it does not move an upper limb forcibly. For this reason, the effect of prompting the patient P to exercise by himself is not impaired.
- the vibration stimulus is applied to the upper limb of the patient P by the vibration stimulus generator 5.
- the vibration stimulation effectively acts on the deep sense of the muscle of the patient P and excites the nerve path from the cerebrum to the muscle. For this reason, a motor function can be recovered more effectively.
- the vibration stimulation generator 5 is driven according to the operation of the switches 25 and 26, the excitement of the nerve tract is repeated according to the repetitive movement of the upper limbs, and the motor function can be restored more effectively. .
- the training apparatus 1 includes the adjustment mechanisms A1 and A2 of the position of the second switch 26.
- the relative position of the second switch 26 with respect to the first switch 25 can be adjusted in the vertical direction by the adjustment mechanism A2.
- the height difference between the first switch 25 and the second switch 26 can be adjusted according to the degree of paralysis of the patient P or the degree of recovery of the motor function.
- the degree of paralysis is light
- the height difference between the first switch 25 and the second switch 26 may be increased to increase the training load.
- the height difference between the first switch 25 and the second switch 26 may be increased in accordance with the progress of recovery of the motor function by repeating the exercise, and the exercise load may be increased.
- the relative position of the second switch 26 with respect to the first switch 25 can be adjusted in the front-rear direction by the adjustment mechanism A1.
- the distance in the front-rear direction between the first switch 25 and the second switch 26 can be adjusted in accordance with the degree of paralysis or recovery of the motor function of the patient P.
- the degree of paralysis is light
- the distance in the front-rear direction between the first switch 25 and the second switch 26 may be increased, and the movement distance of the upper limb may be increased.
- the distance in the front-rear direction between the first switch 25 and the second switch 26 may be increased and the movement distance of the upper limb may be increased in accordance with the progress of recovery of the motor function through repeated training.
- the adjusting mechanisms A1 and A2 may be configured to adjust the position of the first switch 25 instead of the second switch 26, or to adjust the positions of both the first switch 25 and the second switch 26. May be.
- the training device 1 includes an adjustment mechanism A3 for adjusting the position of the pulley 38A in the front-rear direction. Thereby, the position of the sling 30 depending from the pulley 38A can be adjusted according to the positions of the first switch 25 and the second switch 26, so that the repetitive motion can be performed more smoothly.
- the magnitude of the tension of the wire 31, that is, the magnitude of the upward force generated by the force generation mechanism 3 may be adjusted according to the degree of paralysis or recovery of the motor function of the patient P. For example, when the degree of paralysis is light, the upward force may be reduced to increase the training load. Further, as the recovery of the motor function proceeds, the upward force may be reduced to increase the training load.
- the control unit 6 as the motor control device MC may change the upward force according to whether the switches 25 and 26 are turned on or off.
- the upper limb is raised after the switch 25 is pushed, and the upper limb is lowered after the switch 26 is pushed.
- the upward force can be changed between when the upper limb is raised and when it is lowered.
- the upward force is calculated by multiplying the unloading force by different adjustment ratios.
- the upward force when the upper limb is raised can be increased by setting the adjustment ratio after pressing the switch 25 to be larger than the adjustment ratio after pressing the switch 26.
- the set value of the adjustment ratio may be input.
- the upward force may be changed according to both the on / off state of the switches 25 and 26 and the position of the sling 30.
- Specific methods include the following. That is, when the sling 30 is positioned above a predetermined height (hereinafter referred to as “lift reference height”) after the switch 25 is pressed and before the switch 26 is pressed, the upper limb is lifted.
- the upward force is calculated by multiplying the load adjustment force by the adjustment ratio for the hour.
- the sling 30 is positioned below a predetermined height (hereinafter referred to as “downward reference height”) after the switch 26 is pressed and until the switch 25 is pressed, the upper limb is used for lowering.
- the upward force is calculated by multiplying the unloading force by the adjustment ratio.
- the set values for the ascending reference height and the descending reference height may be input.
- the upward force can be further optimized in accordance with the movement of the upper limb.
- Training data may be recorded by the control unit 6.
- Examples of the training data include a period of repetitive motion and a target value of the tension of the wire 31.
- the degree of recovery of motor function can be grasped. For example, it is possible to grasp that the recovery of the motor function has progressed based on the fact that the cycle of the repetitive motion has become shorter.
- the training apparatus does not necessarily include the switches 25 and 26, the electrical stimulus generator 4, and the vibration stimulus generator 5.
- the number of target portions to be touched by the patient's upper limb is not limited to two, and may be one or three or more.
- the present invention is also applicable to training of a patient's lower limb. That is, the present invention is applicable to training of limbs including upper limbs and lower limbs.
- the present disclosure can be used in an apparatus for training a patient's limb that requires recovery of motor function.
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Abstract
Description
Claims (16)
- 肢部を訓練するための装置であって、
前記肢部により触れさせるための目標部と、
前記肢部に対し上向きに作用する上向力を、前記肢部の上下動を許容しながら電力により発生する力発生機構と、を備える訓練装置。 - 前記力発生機構は、
前記肢部への装着部と、
前記装着部から上方に延出するワイヤと、
前記ワイヤを巻き取るモータと、
前記装着部の上下動を許容しながら前記ワイヤに張力を付与することで前記上向力を発生するように、前記モータをトルク制御するモータ制御装置と、を備える請求項1記載の訓練装置。 - 前記モータ制御装置は、前記肢部の自重に対抗する免荷力を前記上向力として発生するように、前記モータをトルク制御する、請求項2記載の訓練装置。
- 前記モータ制御装置は、前記ワイヤを巻き取る方向に前記モータが加速しているときには、前記肢部の自重に対抗する免荷力に前記肢部の上昇の補助力を加算した力を前記上向力として発生するように、前記モータをトルク制御し、前記ワイヤを送り出す方向に前記モータが加速しているときには、前記免荷力から前記肢部の下降の補助力を減算した力を前記上向力として発生するように、前記モータをトルク制御する、請求項2記載の訓練装置。
- 前記モータ制御装置は、前記モータの回転状態に基づいて前記肢部の筋力を推定し、前記肢部の筋力の推定値に応じて前記補助力を算出する、請求項4記載の訓練装置。
- 前記モータ制御装置は、前記装着部の位置に応じて前記免荷力を変化させるように前記モータをトルク制御する、請求項3~5のいずれか一項記載の訓練装置。
- 前記目標部の位置の調節機構を更に備える、請求項1~6のいずれか一項記載の訓練装置。
- 前記調節機構として、前記目標部の高さの調節機構を備えると共に、前記高さの調節中における前記目標部の下降に対抗する力を発生する落下防止部を更に備える、請求項7記載の訓練装置。
- 前記目標部の押下に伴いオン・オフが切り替わるスイッチを更に備える、請求項1~8のいずれか一項記載の訓練装置。
- 前記目標部の押下に伴いオン・オフが切り替わるスイッチを更に備え、
前記モータ制御装置は、前記スイッチのオン・オフに応じて前記上向力を変化させるように前記モータをトルク制御する、請求項2~6のいずれか一項記載の訓練装置。 - 前記モータ制御装置は、前記スイッチのオン・オフと前記装着部の位置とに応じて前記上向力を変化させるように前記モータをトルク制御する、請求項10記載の訓練装置。
- 前記スイッチのオン・オフに応じて前記肢部に振動刺激を与える振動刺激発生部を更に備える、請求項9~11のいずれか一項記載の訓練装置。
- 関節運動を生じない程度の電流値で前記肢部に電気刺激を与える電気刺激発生部を更に備える、請求項9~12のいずれか一項記載の訓練装置。
- 前記電気刺激発生部は、前記スイッチのオン・オフに応じて前記肢部に前記電気刺激を与える、請求項13記載の訓練装置。
- 肢部を訓練するための装置であって、
前記肢部により操作させるためのスイッチと、
前記スイッチの位置の調節機構と、を備える訓練装置。 - 前記調節機構として、前記スイッチの高さの調節機構を備えると共に、前記高さの調節中における前記スイッチの下降に対抗する力を発生する落下防止部を更に備える、請求項15記載の訓練装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2015155290A RU2015155290A (ru) | 2013-05-24 | 2014-05-20 | Устройство для физических упражнений |
| EP14800942.6A EP3006006A1 (en) | 2013-05-24 | 2014-05-20 | Exercise apparatus |
| CN201480029273.7A CN105263457B (zh) | 2013-05-24 | 2014-05-20 | 训练装置 |
| US14/946,785 US20160074271A1 (en) | 2013-05-24 | 2015-11-20 | Training device |
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| JP2013110273A JP6210364B2 (ja) | 2013-05-24 | 2013-05-24 | 訓練装置 |
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| US14/946,785 Continuation US20160074271A1 (en) | 2013-05-24 | 2015-11-20 | Training device |
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| US (1) | US20160074271A1 (ja) |
| EP (1) | EP3006006A1 (ja) |
| JP (1) | JP6210364B2 (ja) |
| CN (1) | CN105263457B (ja) |
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| CN105997430A (zh) * | 2016-06-19 | 2016-10-12 | 河北工业大学 | 一种直接驱动与间接驱动相结合的上肢康复机器人 |
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| JP6210363B2 (ja) * | 2013-05-24 | 2017-10-11 | 株式会社安川電機 | 訓練装置 |
| CN104921902B (zh) * | 2014-03-17 | 2017-11-24 | 香港理工大学 | 一种结合感知功能与机械辅助的康复系统 |
| JP6963984B2 (ja) * | 2017-12-12 | 2021-11-10 | パラマウントベッド株式会社 | 免荷装置および免荷システム |
| US20230181407A1 (en) * | 2021-12-09 | 2023-06-15 | Matthew James Humiston | Blood Circulation Enhancement Method and Apparatus |
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| RU2015155290A (ru) | 2017-06-30 |
| JP6210364B2 (ja) | 2017-10-11 |
| US20160074271A1 (en) | 2016-03-17 |
| CN105263457A (zh) | 2016-01-20 |
| JP2014226442A (ja) | 2014-12-08 |
| CN105263457B (zh) | 2019-01-04 |
| EP3006006A1 (en) | 2016-04-13 |
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