CN111249116A - Unilateral lower limb exoskeleton rehabilitation device - Google Patents
Unilateral lower limb exoskeleton rehabilitation device Download PDFInfo
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- CN111249116A CN111249116A CN202010068400.1A CN202010068400A CN111249116A CN 111249116 A CN111249116 A CN 111249116A CN 202010068400 A CN202010068400 A CN 202010068400A CN 111249116 A CN111249116 A CN 111249116A
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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
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
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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
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H2003/007—Appliances for aiding patients or disabled persons to walk about secured to the patient, e.g. with belts
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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
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
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- A—HUMAN NECESSITIES
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- 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
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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
- 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
- A61H2201/165—Wearable interfaces
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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
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5058—Sensors or detectors
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Abstract
The invention discloses a unilateral lower limb exoskeleton rehabilitation device, which comprises: the crus part comprises a crus support piece, and the crus support piece is used for being bound on the crus at the affected side and corresponding to the crus bone at the affected side; one end of the power joint component is used for being bound on the affected thigh, and the other end of the power joint component is rotatably matched with the shank support piece, so that the power joint component can rotate along the front and back direction relative to the shank support piece; the first motion detection unit is used for detecting the motion state of the healthy lower limbs; and the controller is electrically connected with the power joint part and the first motion detection unit and controls the power joint part according to the motion state of the healthy-side lower limb so as to assist the affected-side lower limb to coordinate the healthy-side lower limb to move. The unilateral lower limb exoskeleton rehabilitation device is effectively used for stroke and hemiplegia patients, and has high clinical practicability and good rehabilitation effect.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a unilateral lower limb exoskeleton rehabilitation device.
Background
Rehabilitation robots are one of the research hotspots in the international robot field. At present, a rehabilitation robot becomes an important auxiliary medical device and is widely applied to the aspects of rehabilitation nursing, artificial limbs, rehabilitation treatment and the like.
The lower limb exoskeleton robot is a rehabilitation robot which is composed of a mechanism body, a hardware system, an algorithm and software system and a wearable part, and can help patients with stroke, spinal cord injury and lower limb motor function disorder to perform rehabilitation training. Specifically, the patient can perform functional training such as sitting, standing, walking, balancing and the like by using the lower limb exoskeleton robot, so that the patient is helped to gradually recover muscle strength, master body balance and correct abnormal walking gait, and then return to normal life.
However, in the prior art, the exoskeleton robot is basically only suitable for patients with paralysis on the left and right sides, and a lower limb exoskeleton device for assisting hemiplegic patients to walk is lacked, so that the practicability of the exoskeleton robot is reduced.
Disclosure of Invention
The invention mainly aims to provide a unilateral lower limb exoskeleton rehabilitation device, and aims to solve the technical problem of improving the practicability of the exoskeleton rehabilitation device.
In order to achieve the above object, the present invention provides a unilateral lower extremity exoskeleton rehabilitation device comprising:
the crus part comprises a crus support piece, and the crus support piece is used for being bound on the crus at the affected side and corresponding to the crus bone at the affected side;
the power joint component is used for being bound on the thigh on the affected side, and the other end of the power joint component is rotatably matched with the shank support piece, so that the power joint component can rotate in the front-back direction relative to the shank support piece;
a first motion detection unit for detecting a motion state of a healthy lower limb;
the controller is electrically connected with the power joint component and the first motion detection unit, and the controller controls the power joint component according to the motion state of the healthy-side lower limb so as to assist the affected-side lower limb to coordinate the healthy-side lower limb motion.
Preferably, the single-side lower limb exoskeleton rehabilitation device further comprises a healthy-side wearing piece which is worn on the healthy-side lower limb, and the first motion detection unit is arranged on the healthy-side wearing piece.
Preferably, the single-side lower limb exoskeleton rehabilitation device further comprises a second motion detection unit electrically connected with the controller and used for detecting the motion state of the affected lower limb; the controller controls the power joint component according to the motion states of the healthy-side lower limb and the affected-side lower limb, so that the motion states of the affected-side lower limb and the healthy-side lower limb are coordinated and consistent.
Preferably, the single-side lower limb exoskeleton rehabilitation device further comprises a torque sensor and/or a force sensor which are arranged in the power joint part and used for detecting joint acting force in the motion process of the affected lower limb; the controller is electrically connected with the torque sensor and/or the force sensor, and controls the power joint component according to joint acting force in the motion process of the affected lower limb so as to assist the motion of the affected lower limb.
Preferably, the lower leg part further comprises a lower leg wearing part for wearing on the affected lower leg, and the lower leg supporting part is connected to the lower leg wearing part.
Preferably, the single-side lower extremity exoskeleton rehabilitation device further comprises a thigh wearing part used for being worn on the affected thigh, and the upper end of the power joint part is connected to the thigh wearing part.
Preferably, the unilateral lower limb exoskeleton rehabilitation device further comprises a waist wearing piece used for being worn on the waist, and the side-exercising wearing piece is connected to the waist wearing piece.
Preferably, the single-side lower limb exoskeleton rehabilitation device further comprises a waist wearing piece used for wearing on the waist, and the controller is arranged on the waist wearing piece; the single-side lower limb exoskeleton rehabilitation device further comprises a mobile power supply and a control terminal, wherein the mobile power supply and the control terminal are arranged on the waist wearing piece, and the mobile power supply is electrically connected with the controller, the power joint part and the first motion detection unit.
Preferably, the single-sided lower extremity exoskeleton rehabilitation device further comprises a hip waist part, one end of the hip waist part is connected to the waist wearing piece, and the other end of the hip waist part is connected to the power joint part.
Preferably, the portable power source is mounted on a side of the waist wearing part facing away from the power joint part.
Preferably, the calf support is adjustably set in length; and/or the length of the hip waist part can be adjusted; and/or the wear size of the waist wear is adjustably set.
According to the unilateral lower limb exoskeleton rehabilitation device, the unilateral lower limb exoskeleton component and the power joint component are arranged and worn on the affected lower limb, and the forward and backward rotation of the power joint component can assist the affected lower limb to bend and straighten, so that the patient is assisted to sit, stand and walk, the unilateral lower limb exoskeleton rehabilitation device can be suitable for hemiplegic patients, and the practicability of the unilateral lower limb exoskeleton rehabilitation device is improved; in addition, the motion state of the healthy-side lower limbs is detected through the first motion detection unit, so that the controller can control the power joint part according to the motion state of the healthy-side lower limbs, the output torque and the rotation angle of the power joint part are adjusted, the motion of the affected-side lower limbs is consistent with the coordination of the healthy-side lower limbs, the sitting, standing and walking assistance accuracy of a patient is improved, and the rehabilitation effect of the single-side lower limb exoskeleton rehabilitation device is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a unilateral lower extremity exoskeleton rehabilitation device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of the unilateral lower extremity exoskeleton rehabilitation device of the present invention;
FIG. 3 is an exploded perspective view of a single lower extremity exoskeleton rehabilitation device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a single-left lower extremity exoskeleton rehabilitation device according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a single-right lower extremity exoskeleton rehabilitation device according to another embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an embodiment of the combined lower extremity exoskeleton rehabilitation device of the present invention;
fig. 7 is a schematic structural view of another embodiment of the combined lower extremity exoskeleton rehabilitation device according to the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a lower limb exoskeleton rehabilitation device which comprises a unilateral lower limb exoskeleton rehabilitation device or a combined lower limb exoskeleton rehabilitation device.
In an embodiment of the present invention, as shown in fig. 1 to 4, the single-sided lower extremity exoskeleton rehabilitation device includes: a calf part 10, including a calf support 11, wherein the calf support 11 is used to bind on the affected calf to correspond to the affected calf bone; a dynamic joint component 20, one end of the dynamic joint component 20 is used for being bound on the affected thigh, and the other end is rotatably matched with the lower leg support 11, so that the dynamic joint component 20 can rotate along the front and back direction relative to the lower leg support 11; a first motion detection unit for detecting a motion state of a healthy lower limb; and the controller is electrically connected with the power joint part 20 and the first motion detection unit, and controls the power joint part 20 according to the motion state of the healthy-side lower limb so as to assist the affected-side lower limb to coordinate the motion of the healthy-side lower limb.
In this embodiment, unilateral low limbs ectoskeleton rehabilitation device is applicable to the hemiplegia patient, and the patient is unusual at the motion function of postoperative affected side health, and the motion function of healthy side health is normal, through wearing low limbs ectoskeleton rehabilitation device, and affected side low limbs can coordinate healthy side low limbs coordinated movement to effectively help the patient to carry out postoperative walking function rehabilitation.
Wherein, the shank support part 11 is bound at the front side of the shank and corresponds to the shank bone so as to assist the shank bone to play a supporting role in the rehabilitation exercise process of the patient; it should be noted that the binding is not intended to be specific to binding, but rather is intended to be generic to any manner of securing the calf support 11 to the anterior side of the calf, as will be explained in the following description of embodiments. The dynamic joint component 20 is arranged on the outer side of the knee joint, and the dynamic joint component 20 is matched with the upper end of the lower leg support 11 through a connecting piece, namely one end of the connecting piece is fixed on the upper end of the lower leg support 11, and the other end of the connecting piece extends to the lower side of the knee joint so as to be rotatably connected with the dynamic joint component 20. The powered joint component 20 includes a base portion provided at a lower end of a rotating portion that is rotatable relative to the base portion, and a rotating portion fixedly connected to the link so that the rotating portion is rotatable relative to the calf support 11. A driving motor is provided in the power joint part 20 to realize automatic rotation of the power joint part 20. The length of the shank support member is adjustable to adapt to different shank lengths, and the adjustable structure is not limited in particular.
The power joint part 20 is bound on the affected thigh, and the joint of the power joint part 20 and the lower leg support 11 is close to the knee joint, namely the forward and backward rotation of the power joint part 20 can assist the lower limb to bend or extend the knee. For example, when the patient needs to sit down, the power joint part 20 rotates backward relative to the lower leg support 11, and since the power joint part 20 is fixed on the thigh and the lower leg support 11 is fixed on the lower leg, the affected thigh and the lower leg can be driven to complete the knee bending action, so that the patient can complete the sitting down action; when the patient needs to stand up, correspondingly, the power joint part 20 rotates forwards relative to the shank support part 11 so as to drive the affected thigh and the shank to complete the knee stretching action; when the patient needs to perform walking training, the power joint component 20 can complete the cycle actions of knee bending, knee stretching and knee supporting on the power-assisted affected side by matching with the walking time of the healthy lower limb so as to coordinate the healthy lower limb to complete the walking process.
In the exercise process, the first exercise detection unit detects the exercise state of the healthy lower limbs in real time to predict the overall exercise intention of the patient, and then the controller controls the power joint part 20 to assist the affected lower limbs so as to timely cooperate with the healthy lower limbs to complete the exercise intention of the patient. The first motion detection unit may be an inertial measurement unit, i.e., IMU, for measuring three-axis attitude angles and acceleration of the object. Through measuring the angle and the speed of bending and extending the knee of the lower limb of the healthy side, the first motion detection unit can output a data signal to the controller, and the controller controls the power joint part 20 to rotate at the same speed and angle, so that the motion state of the lower limb of the affected side can be consistent with the coordination of the lower limb of the healthy side, the power joint part 20 can adapt to the motion difference of different patients more accurately to the assistance of the motion of the patients, and the rehabilitation effect of the patients is improved.
The installation mode and the installation position of the first motion detection unit are not limited, and the motion state of the lower limb at the healthy side can be detected only by meeting the requirement. The controller may be a separate structure or may be integrated into the power source of the powered joint assembly 20, without limitation. In addition, the electrical connection may be a wired connection or a wireless signal connection, and it is only necessary to satisfy that the controller, the first motion detection unit and the power joint 20 component can transmit and receive signals.
According to the unilateral lower limb exoskeleton rehabilitation device, the unilateral lower limb exoskeleton rehabilitation device is worn on the affected lower limb by arranging the unilateral shank component 10 and the power joint component 20, and the forward and backward rotation of the power joint component 20 can assist the affected lower limb to bend and straighten, so that the patient is assisted to sit, stand and walk, the unilateral lower limb exoskeleton rehabilitation device can be suitable for hemiplegic patients, and the practicability of the unilateral lower limb exoskeleton rehabilitation device is improved; in addition, the motion state of the healthy-side lower limb is detected by the first motion detection unit, so that the controller can control the power joint part 20 according to the motion state of the healthy-side lower limb, and adjust the output torque and the rotation angle of the power joint part 20, so that the motion of the affected-side lower limb is consistent with the coordination of the healthy-side lower limb, the sitting, standing and walking assistance accuracy of a patient is improved, and the rehabilitation effect of the single-side lower limb exoskeleton rehabilitation device is improved.
Specifically, as shown in fig. 1 to 4, the single-sided lower limb exoskeleton rehabilitation device further comprises a healthy-sided wearing part 30 for wearing on the healthy-sided lower limb, and the first motion detection unit is disposed on the healthy-sided wearing part 30. In this embodiment, the health-care wearing member 30 is in the shape of a loop and is fixed to the lower limbs of the health-care side after wearing; the first motion detection unit is disposed on the healthy-side wearing part 30 to be fixed relative to the healthy-side lower limbs, so that the first motion detection unit can stably detect the motion state of the healthy-side lower limbs, and the operation stability of the unilateral lower limb exoskeleton rehabilitation device is improved. In practical applications, a mounting groove 31 is formed on a side of the health-care wearing piece 30 facing away from the power joint part 20, and the first motion detecting unit is embedded in the mounting groove 31. In this embodiment, the mounting groove 31 is located on the outer side of the lower limb with healthy side, and the notch of the mounting groove 31 faces upward, so as to facilitate taking and placing the first motion detection unit. The health-care wearing piece 30 can be made of a flexible material or a soft material so as to improve the wearing comfort and play a role in buffering and protecting the first motion detection unit.
In one embodiment, the single-side lower limb exoskeleton rehabilitation device further comprises a second motion detection unit electrically connected with the controller and used for detecting the motion state of the affected lower limb; the controller controls the power joint part 20 according to the difference of the motion states of the healthy lower limb and the affected lower limb, so that the motion states of the affected lower limb and the healthy lower limb are coordinated.
In the present embodiment, after the power joint part 20 rotates at a corresponding angle and speed according to the exercise state of the healthy lower limb, the exercise of the affected lower limb may be subjected to other resistance, so that the affected lower limb cannot reach the desired exercise state. The second motion detection unit can detect the actual motion state of the affected lower limb, and the controller performs compensation control on the power joint part 20 by comparing the motion state difference of the affected lower limb and the healthy lower limb, so that the power joint part 20 outputs corresponding compensation rotation to achieve dynamic adjustment of the motion assistance of the affected lower limb, and the coordination with the motion state of the affected lower limb is realized, thereby further improving the rehabilitation effect of the single-side lower limb exoskeleton rehabilitation device. The second motion detection unit may be provided inside the power joint part 20 to facilitate the installation and protection of the second motion detection unit.
The first motion detection unit and the second motion detection unit are combined, for early patients, due to the fact that the affected side motion capability of the patients is poor, the motion data detected by the second motion detection unit is inaccurate, and at the moment, detection of motion intentions and loading assistance of an algorithm are mainly carried out through the first motion detection unit; for the middle-term patient, the affected side of the patient already has certain motion capability but is inconsistent with the motion rhythm of the healthy side, and the detection data of the first motion detection unit and the second motion detection unit are combined at the moment to carry out detection and assistance on the motion intention of the patient through fusion calculation so as to enable the motion of the affected side and the healthy side to be coordinated and consistent; for later patients, the affected side of the patient has the ability of active movement, and the detection data of the second motion detection unit and the standard gait algorithm can be used for realizing the detection and the assistance to the movement intention of the patient. Therefore, aiming at patients in different rehabilitation periods, the first motion detection unit and the second motion detection unit are effectively utilized to carry out targeted motion detection and assistance, and the rehabilitation effect is further improved.
Specifically, the single-side lower limb exoskeleton rehabilitation device further comprises a torque sensor and/or a force sensor arranged in the power joint part 20, and is used for detecting joint acting force in the motion process of the affected lower limb; the controller is electrically connected with the torque sensor and/or the force sensor, and controls the power joint part 20 according to joint acting force in the motion process of the affected lower limb so as to assist the motion of the affected lower limb.
In this embodiment, for a patient with a certain mobility of the affected lower limb, the knee joint can actively exert force to achieve the movement, and the active force is not enough to make the affected lower limb complete the movement, but indicates that the rehabilitation training of the patient starts to take effect. For patients at this stage, the force of the powered joint component 20, if maintained, may cause over-correction to the patient's healing process. The torque sensor and/or the force sensor can detect the active force of a patient in the movement process, the controller obtains the difference value of the active force and the target acting force by comparing the active force with the target acting force required by completing the corresponding action, and controls the power joint part 20 to output the corresponding torque, so that under the condition that the patient is assisted in the movement state, the assistance which is more accurate and more accords with the actual requirement is realized for the patient in different stages, and the rehabilitation effect of the unilateral lower limb exoskeleton rehabilitation device is further improved.
In practical applications, as shown in fig. 1 to 4, the lower leg part 10 further includes a lower leg wearing part 12 for wearing on the affected lower leg, and the lower leg supporting part 11 is connected to the lower leg wearing part 12. In this embodiment, the calf support 11 is connected to the front side of the calf support 12, and the number of the calf support 12 can be two, and the two calf supports are respectively connected to the upper end and the lower end of the calf support 11, so as to increase the relative fitting area between the calf support 11 and the calf and further improve the wearing stability of the calf support 11. It will be appreciated that the lateral dimensions of the lower leg wear 12 can be adjusted to accommodate patients of different lower leg widths.
In one embodiment, as shown in fig. 1 to 4, the single-sided lower extremity exoskeleton rehabilitation device further comprises a thigh wearing part 40 for wearing on the affected thigh, and the upper end of the powered joint part 20 is connected to the thigh wearing part 40. In this embodiment, the power joint part 20 is connected to a side of the thigh wearing part 40 facing away from the lower limb for enhancing the relative fitting area of the power joint part 20 and the thigh, thereby enhancing the wearing stability of the power joint part 20. It will be appreciated that the lateral dimensions of the thigh wear part 40 are adjustable to accommodate patients of different thigh widths.
Specifically, as shown in fig. 1 to 4, the single-sided lower extremity exoskeleton rehabilitation device further comprises a waist wearing part 50 for wearing on the waist, and the exercise side wearing part 30 is connected to the waist wearing part 50. In this embodiment, the health side wear member 30 and the powered joint component 20 can be connected to the waist wear member 50 to enhance the integrity of the device for the rehabilitation of the exoskeleton of the lower extremities, and avoid the loss of the relevant components due to the separation of the structure. The wearing size of the waist wearing piece can be adjusted to adapt to different waist widths and thicknesses, and the adjustable structure is not limited specifically.
In practical application, as shown in fig. 1 to 4, the lower extremity exoskeleton rehabilitation device further comprises a mobile power source 70 and a control terminal 60, which are arranged on the waist wearing part 50, wherein the mobile power source 70 is electrically connected with the controller, the power joint part 20 and the first motion detection unit. The portable power source 70 is used to provide operating power for the power joint part 20, the first motion detection unit and the second motion detection unit, and the controller may be integrated into the portable power source 70. The control terminal 60 is used for the user to operate, so as to select corresponding auxiliary modes according to different motion states, for example, sitting-standing motion requires synchronous motion of the lower limb at the affected side and the lower limb at the healthy side, and walking motion requires sequential motion of the lower limb at the affected side and the lower limb at the healthy side; therefore, the control terminal 60 enables the patient to select the corresponding assist mode by himself, and the practicability of the one-sided lower limb exoskeleton rehabilitation device is improved.
It can be understood that the control function can also be transplanted on the own mobile terminal of the user through a program, so that the user can control the lower limb exoskeleton rehabilitation device more conveniently. In addition, the control terminal 60 and the portable power source 70 should be detachably connected to the waist wearing part 50 so as to be taken out and put in for charging or operation.
In practical applications, as shown in fig. 1 to 4, the single-sided lower extremity exoskeleton rehabilitation device further comprises a hip waist part 80, wherein one end of the hip waist part 80 is connected to the waist wearing member 50, and the other end is connected to the power joint part 20. In this embodiment, the hip and waist part 80 is integrally disposed in a plate shape and located at the outer side of the affected thigh, the upper end of the hip and waist part 80 is connected to the waist wearing part 50, and the lower end is connected to the power joint part 20, so that the connection between the power joint part 20 and the waist wearing part 50 is more stable; in addition, in the rotation process of the power joint part 20, the acting force can act on the waist of the patient through the hip waist part 80 and the waist wearing piece 50, so that the waist of the patient can play a role of reverse support in the motion process of the lower limbs, and the whole motion process of the patient can better accord with the human mechanics. The hip and waist part can be adjusted in length to adapt to different thigh lengths, and the adjustable structure is not particularly limited.
Specifically, as shown in fig. 1, the hip waist part 80 is attached to the bottom edge of one side in the left-right direction of the waist wearing member 50, and the weight of the power joint part 20 is applied to the waist wearing member 50 through the hip waist part 80, thereby being applied to one side of the waist of the user; the portable power source 70 is mounted on a side of the waist wearing part 50 away from the power joint part 20, for example, if the power joint part 20 is connected to a left side of the waist wearing part 50, the portable power source 70 is mounted on a right rear side of the waist wearing part 50, and the control terminal 60 is mounted on a left rear side of the waist wearing part 50. Because portable power source 70 has certain quality, installs in waist wearing piece 50 back, portable power source 70's gravity can act on user's waist, through connecting portable power source 70 and power joint part 20 in the relative both sides of waist wearing piece 50, can make the gravity of the two part locate user's waist both sides for user's whole atress is more even.
In another embodiment of the present invention, as shown in fig. 4 and 7, two mounting portions 51 are respectively provided on both left and right sides of the waist wearing article 50, and the power joint member 20 is detachably connected to the mounting portions 51. At this time, the lower limb exoskeleton rehabilitation device is a combined lower limb exoskeleton rehabilitation device, namely, the lower limb exoskeleton rehabilitation device can be used as a single-side lower limb exoskeleton rehabilitation device and can also be used as a double-side lower limb exoskeleton rehabilitation device. When the device is used as a unilateral lower limb exoskeleton rehabilitation device, the number of the lower leg parts 10 and the number of the power joint parts 20 are one set, and the lower leg parts and the power joint parts are connected with the installation part 51 corresponding to the affected side; when the device is required to be used as a bilateral lower limb exoskeleton rehabilitation device, the number of the lower leg parts 10 and the number of the power joint parts 20 are two, and the two sets are respectively connected to the two mounting parts 51; from this, to the patient that the symptom is different, the part of combination formula low limbs ectoskeleton rehabilitation device can the independent assortment form the product form that corresponds to on the unchangeable basis of part, satisfy different patients 'demand, thereby can concentrate production and processing to the part, simplified product production process, in addition, when certain part damages, can overhaul or change through dismantling, improved low limbs ectoskeleton rehabilitation device's adaptability and practicality promptly, reduced production and maintenance cost simultaneously.
In conjunction with the above-described embodiment of the hip waist member 80, the lower end of the hip waist member 80 is connected to the power joint member 20 and the upper end is detachably connected to the mounting portion 51 of the waist wear 50. Specifically, as shown in fig. 3 and 4, the hip and waist part 80 is provided with a rotatable buckle 81 at the upper end thereof, the mounting part 51 comprises a protrusion 511, and the top of the protrusion 511 is provided with a buckle slot 512 adapted to the buckle 81. The retaining ring 81 can be turned over longitudinally, the buckling groove 512 extends in the front-back direction, two ends of the buckling groove are communicated, the retaining ring 81 can rotate upwards until the retaining ring is buckled on the buckling groove 512, and then clamping and fixing are achieved through the limiting structure. When the hip waist part 80 needs to be disassembled, the snap ring 81 is only needed to be broken off from the snap groove 512 with the acting force larger than the resistance force of the limiting structure.
In practical applications, in combination with the above-mentioned first motion detection unit and the embodiment of the health-care wearing piece 30, two connection portions 52 are further respectively disposed on the left and right sides of the waist wearing piece 50, and the health-care wearing piece 30 is detachably connected to the connection portions 52. When the lower extremity exoskeleton rehabilitation device is used as a unilateral lower extremity exoskeleton rehabilitation device, the exercise side wearing part 30 can be connected to the connecting part 52 corresponding to the detected thigh, so as to realize the wearing of the exercise side wearing part 30 and the first motion detection unit. Specifically, the connecting portion 52 includes a connecting ring (not shown) which is connected to the exercise-side wearing member 30 via a connecting band. The connection rings may be provided on the bottom sides of the left and right sides of the waist wearing member 50, i.e., below the mounting portion 51, to prevent interference with the assembly of the mounting portion 51 and the hip waist member 80. The lower end of the connecting belt is connected with the healthy side wearing piece 30, and the upper end of the connecting belt passes through and is hung on the connecting ring, so that the healthy side wearing piece 30 is detachably connected with the waist wearing piece 50. The connection band may be integrally formed with the health-care wearing piece 30 to improve connection strength.
It should be noted that, in combination with the above-mentioned embodiment of the second motion detection units, when the lower limb exoskeleton rehabilitation device is used as a bilateral lower limb exoskeleton rehabilitation device, the number of the second motion detection units is two and are respectively disposed in the two power joint components 20, and the two second motion detection units respectively detect the motion states of the two lower limbs, so that the controller determines whether the actual motion states of the two lower limbs reach the preset state after the assistance of the power joint components 20, thereby dynamically adjusting the motion assistance of the two lower limbs, and improving the rehabilitation effect of the bilateral lower limb exoskeleton rehabilitation device.
In an embodiment, the connection strap is formed with a wiring slot, and the electrical connection wire of the first motion detection unit is inserted into the wiring slot and electrically connected to the mobile power source 70. The mobile power supply 70 supplies power to the first motion detection unit through the electric connecting wire, and the wiring groove is arranged on the outer side of the healthy-side lower limb and used for bundling the electric connecting wire, so that the electric connecting wire is prevented from being hooked by a foreign object in the walking process of a patient, and the safety performance of the lower limb exoskeleton rehabilitation device is improved.
In another embodiment of the present invention, as shown in fig. 1 to 4, the lower extremity exoskeleton rehabilitation device further includes a functional electrical stimulation module electrically connected to the mobile power supply 70, and the functional electrical stimulation module is configured to be worn on the affected lower extremity to perform electrical stimulation treatment on the affected lower extremity.
In this embodiment, the functional electrical stimulation module stimulates one or more groups of muscles by a predetermined program using a low-frequency pulse current with a certain intensity to induce muscle movement or simulate normal voluntary movement, so as to achieve the purpose of improving or recovering the function of the stimulated muscle or muscle group. The functional electrical stimulation module is combined with the lower leg support 11 and the power joint part 20 and then worn on the affected lower limb, and can be matched with the power joint part 20 to electrically stimulate the muscle or nerve of the affected lower limb, so that the affected lower limb can realize the actions of lifting feet or legs. For example, the foot on the affected side usually has a sagging state, and when the power joint component 20 assists the affected side to realize a walking action, the functional electrical stimulation module can stimulate the lower limb of the affected side in cooperation with the walking timing to lift up the foot on the affected side, so that the walking action on the affected side is more complete, and the symptom of foot sagging is effectively treated. In addition, the functional electrical stimulation module can also effectively treat the symptoms of the foot valgus or the foot varus of the patient, thereby improving the treatment effect of the lower limb exoskeleton rehabilitation device.
Specifically, as shown in fig. 3, the functional electrical stimulation module includes a first electrical stimulation unit 91 and a second electrical stimulation unit 92, the first electrical stimulation unit 91 is worn on the affected calf, and the second electrical stimulation unit 92 is worn on the affected thigh. In this embodiment, the first electrical stimulation unit 91 electrically stimulates the muscle nerve of the lower leg to induce the patient to complete the foot-lifting action, so as to treat the foot drop symptom of the patient; the second electrostimulation unit 92 electrically stimulates the femoral muscle nerves to induce the patient to complete the foot-lifting action to improve the rehabilitation effect on the patient in cooperation with the powered joint component 20.
In practical applications, in combination with the above-described embodiments of the thigh wearing piece 40 and the lower leg wearing piece 12, as shown in fig. 3, the first electrostimulation unit 91 is provided on the inner peripheral side of the lower leg wearing piece 12, and the second electrostimulation unit 92 is provided on the inner peripheral side of the thigh wearing piece 40. In this embodiment, the first electrical stimulation unit 91 is combined with the lower leg wearing part 12, and the second electrical stimulation unit 92 is combined with the upper leg wearing part 40, so that the integrity of the lower limb exoskeleton rehabilitation device can be enhanced, and the functional electrical stimulation module can be stably worn.
In an embodiment, in combination with the above embodiments of the controller and the first motion detection unit, the controller is further electrically connected to the functional electrical stimulation module to control the functional electrical stimulation module according to the motion amplitude of the lower limb. When a patient carries out rehabilitation training, the first motion detection unit can detect the foot lifting angle or the leg lifting angle of the healthy lower limb and output corresponding data signals to the controller, and the controller controls the output power of the functional electrical stimulation module according to the data signals so that the affected lower limb can carry out foot lifting action or leg lifting action which is consistent with the healthy lower limb angle; therefore, the patient can realize mirror image rehabilitation training taking the healthy lower limbs as the standard so as to improve the rehabilitation effect of the lower limb exoskeleton rehabilitation device.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A unilateral lower extremity exoskeleton rehabilitation device, comprising:
the crus part comprises a crus support piece, and the crus support piece is used for being bound on the crus at the affected side and corresponding to the crus bone at the affected side;
the power joint component is used for being bound on the thigh on the affected side, and the other end of the power joint component is rotatably matched with the shank support piece, so that the power joint component can rotate in the front-back direction relative to the shank support piece;
a first motion detection unit for detecting a motion state of a healthy lower limb;
the controller is electrically connected with the power joint component and the first motion detection unit, and the controller controls the power joint component according to the motion state of the healthy-side lower limb so as to assist the affected-side lower limb to coordinate the healthy-side lower limb motion.
2. The unilateral lower extremity exoskeleton rehabilitation device of claim 1 further comprising a side-welling wear member for wearing on the side-welling lower extremity, wherein the first motion detection unit is disposed on the side-welling wear member.
3. The unilateral lower extremity exoskeleton rehabilitation device of claim 1, further comprising a second motion detection unit electrically connected to the controller for detecting a motion state of the affected lower extremity; the controller controls the power joint component according to the motion states of the healthy-side lower limb and the affected-side lower limb, so that the motion states of the affected-side lower limb and the healthy-side lower limb are coordinated and consistent.
4. The unilateral lower extremity exoskeleton rehabilitation device of any one of claims 1 to 3, further comprising a torque sensor and/or a force sensor disposed within the powered joint component for detecting joint forces during movement of the affected lower extremity; the controller is electrically connected with the torque sensor and/or the force sensor, and controls the power joint component according to joint acting force in the motion process of the affected lower limb so as to assist the motion of the affected lower limb.
5. The unilateral lower extremity exoskeleton rehabilitation device of claim 1, wherein the lower leg assembly further comprises a lower leg wear for wearing on the affected lower leg, the lower leg support member being coupled to the lower leg wear.
6. The unilateral lower extremity exoskeleton rehabilitation device of claim 1 further comprising a thigh wear member for wearing on the affected thigh, wherein the powered joint component is coupled at an upper end thereof to the thigh wear member.
7. The unilateral lower extremity exoskeleton rehabilitation device of claim 2 further comprising a waist wear for wearing about the waist, wherein the side wear is coupled to the waist wear.
8. The unilateral lower extremity exoskeleton rehabilitation device of claim 1 further comprising a waist wear member for wearing about the waist, wherein the controller is coupled to the waist wear member; the single-side lower limb exoskeleton rehabilitation device further comprises a mobile power supply and a control terminal, wherein the mobile power supply and the control terminal are arranged on the waist wearing piece, and the mobile power supply is electrically connected with the controller, the power joint part and the first motion detection unit.
9. The unilateral lower extremity exoskeleton rehabilitation device of claim 8 further comprising a hip waist feature coupled at one end to the waist wear and at another end to the powered joint feature.
10. The unilateral lower extremity exoskeleton rehabilitation device of claim 9 wherein the mobile power source is mounted to a side of the waist wear facing away from the powered joint component.
11. The unilateral lower extremity exoskeleton rehabilitation device of claim 9, wherein the calf support is adjustably configured in length; and/or the length of the hip waist part can be adjusted; and/or the wear size of the waist wear is adjustably set.
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Application publication date: 20200609 |