CN117243743A - Knee joint hinge device for orthosis - Google Patents
Knee joint hinge device for orthosis Download PDFInfo
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- CN117243743A CN117243743A CN202311298319.2A CN202311298319A CN117243743A CN 117243743 A CN117243743 A CN 117243743A CN 202311298319 A CN202311298319 A CN 202311298319A CN 117243743 A CN117243743 A CN 117243743A
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- orthosis
- knee joint
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- 210000000629 knee joint Anatomy 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims description 43
- 210000000078 claw Anatomy 0.000 claims description 20
- 210000003127 knee Anatomy 0.000 claims description 12
- 210000000689 upper leg Anatomy 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000399 orthopedic effect Effects 0.000 abstract description 2
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- 206010008190 Cerebrovascular accident Diseases 0.000 description 5
- 208000006011 Stroke Diseases 0.000 description 5
- 210000003141 lower extremity Anatomy 0.000 description 5
- 230000002490 cerebral effect Effects 0.000 description 4
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- 230000000694 effects Effects 0.000 description 3
- 208000026106 cerebrovascular disease Diseases 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 210000002414 leg Anatomy 0.000 description 2
- 210000002569 neuron Anatomy 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 208000016988 Hemorrhagic Stroke Diseases 0.000 description 1
- 208000032382 Ischaemic stroke Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 206010033892 Paraplegia Diseases 0.000 description 1
- 208000000474 Poliomyelitis Diseases 0.000 description 1
- 210000003489 abdominal muscle Anatomy 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F5/0123—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations for the knees
- A61F5/0125—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations for the knees the device articulating around a single pivot-point
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F2005/0132—Additional features of the articulation
- A61F2005/0158—Additional features of the articulation with locking means
Abstract
The invention relates to the technical field of medical equipment, in particular to a knee joint hinging device for an orthosis, which can lock the orthosis through a first body and a second body in a locking mode, and after a patient is recovered to a certain stage, the connection of the first body and the second body is regulated to be in a section free locking mode, so that the orthosis can realize electrodeless locking in a preset section. According to the invention, through adjusting the connection mode of the first body and the second body, the treatment requirements of different rehabilitation stages of a patient can be realized on the same device, the orthopedic device does not need to be manufactured and replaced again, the rehabilitation requirements of the patient can be adapted steplessly, the manufacturing period of the auxiliary tool of the patient can be effectively shortened, and the service period of the auxiliary tool can be prolonged.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a knee joint hinging device for an orthosis.
Background
Cerebral apoplexy is also called apoplexy and cerebrovascular accident. Is an acute cerebrovascular disease, which is a group of diseases that causes brain tissue injury due to sudden rupture of cerebral vessels or failure of blood to flow into the brain due to vessel occlusion, and includes ischemic and hemorrhagic strokes. The cerebral apoplexy has the characteristic of high disability rate, and the walking function training is a very effective method aiming at cerebral apoplexy patients with lower limb paralysis, and the animal experiments find that the normal physiological walking training can selectively increase the motor nerve path, increase the coordination of a motor pool, activate a small amount of neurons and generate rhythmic walking by utilizing Central Pattern Generators (CPG) in the spinal cord. In recent years, the application of the lower limb exoskeleton robot in walking function training of patients with spinal cord injury and poliomyelitis is more and more extensive, and the robot has been successfully applied to the walking function training and proved to have the following curative effects through clinical experiments: LOKOMAT, germany GAIT TRAINER, KAFO series of autoamulator and OTTO book in the united states, etc. LOKOMAT, a company of HOCOMA, switzerland, is the most successful lower limb exoskeleton for walking function training, allowing patients to walk with reduced weight. The HapticWalker of the university of Berlin, germany can perform stair climbing and stability training, and the SensorWalk, E-MAG Active, freeWalk and the like developed by the company OTTO BOCK, germany are also applied to standing and walking of patients.
In actual treatment, most paraplegic patients have to carry old and traditional orthoses for walking training, as the traditional orthoses mainly play a role in fixing, knee joints are fixed all the time, the knee joints are always in a straightening position fixing state during walking, and then the swing of the whole lower limb is driven by the power of the abdominal muscles, the lumbar and dorsal muscles and the iliofacial muscles of the patients, so that the abnormal gait has a small recovery effect on the muscle strength of key muscles of the lower limb, has little effect on enhancing neuron plasticity, reconstructing the walking function of the patients, and also increases the heart-lung load during walking of the patients.
Accordingly, there is a need to provide a knee articulation arrangement for an orthosis that enables the orthosis to simultaneously meet the therapeutic needs of patients at different stages of rehabilitation.
Disclosure of Invention
In view of at least one of the above problems, it is an object of the present invention to provide a knee joint hinge device for an orthosis, which enables the orthosis to simultaneously meet the therapeutic needs of different rehabilitation stages of a patient by adjusting the connection of the first body and the second body to switch between a locking mode, an interval free locking mode and a free mode, so that the first body and the second body have different degrees of rotational freedom.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a knee articulation device for an orthosis, comprising: a first body; a second body rotatably connected to the first body about an axis and having a maximum angular position relative to the first body, the connection of the two comprising a locking mode, an interval free locking mode and a free mode; the first abutting mechanism is suitable for abutting against the second body to rotate oppositely at the maximum angle position and the first body, the second abutting mechanism is suitable for following the second body to synchronously rotate, and the second abutting mechanism is suitable for moving to have a locking position, an intermediate position and an unlocking position from near to far relative to the second end; the knee articulation device for an orthosis is adapted to: when the first body and the second body are in the locking mode, the abutting mechanism is located at the locking position and is limited by the limiting structure so as to abut against opposite rotation of the second body at the maximum angle position and the first body; when the first body and the second body are in the interval free locking mode, the abutting mechanism is positioned at the middle position and is suitable for being limited by the limiting structure after rotating along with the second body for a preset distance so as to abut against the second body and the first body to continuously rotate in opposite directions; when the first body and the second body are in the free mode, the abutting mechanism is located at the unlocking position, and in the opposite rotation process of the second body and the first body, the abutting mechanism is always far away from the limiting structure.
For example, in the knee joint hinge device for an orthosis according to at least one embodiment of the present invention, the first body includes a limit baffle, the limit baffle is provided with a limit via, the first stopping mechanism is configured to be fixedly disposed on the second body and pass through a limit post of the limit via, a shape of the limit via is consistent with a movement path of the limit post, and one end of the limit via is adapted to stop rotation of the limit post when the second body rotates to the maximum angle position, so as to stop the second body and the first body from continuing to rotate in opposite directions.
For example, in the knee joint hinge device for an orthosis according to at least one embodiment of the present invention, the rotation connector includes a connection cylinder rotatably connected to the second body and fixedly connected to the first body, and a gear cylinder for providing a limiting structure, the gear cylinder is fixedly connected to an end surface of the connection cylinder, the limiting structure is configured as teeth provided on an outer circumferential surface of the gear cylinder, and projections of the gear cylinder and the connection cylinder in an axial direction are non-concentric circles; the second abutment mechanism is configured as a gear pawl adapted to engage with the gear teeth and limit the gear pawl in its circumferential direction.
For example, in the knee joint hinge device for an orthosis according to at least one embodiment of the present invention, the rotation adjusting mechanism further includes a plurality of spring levers and a rotation switch, the spring levers are arranged at intervals, one end of the spring levers in an elastic direction is fixedly connected to one side of the gear pawl away from the gear cylinder, the other end is fixedly connected to the second body, the rotation switch includes a rotation connecting portion located in the middle, and a free end adapted to rotate around the rotation connecting portion, the rotation switch is adapted to rotate to push the gear pawl to move through the free end, and the spring levers are changed from a normal state to a stretched state.
For example, in a knee hinge device for an orthosis according to at least one embodiment of the present invention, at least two of the spring levers are provided on both sides of the rotary switch.
For example, in the knee joint hinge device for an orthosis according to at least one embodiment of the present invention, the knee joint hinge device for an orthosis further includes a third body fixedly connected to the second body, and a mounting position for inserting and mounting the first body is formed between the third body and the second body, the first body is provided with a first through hole for fixedly connecting the connecting column, the second body is provided with a second through hole for rotatably connecting the connecting column, the connecting column is provided with a third through hole, the third body is provided with a fourth through hole, the third through hole and the fourth through hole are adapted to be penetrated by a rotatable fixing shaft, and two ends of the fixing shaft are respectively limited with the second body and the third body in an axial direction; the third body is provided with an avoidance through hole, and one end of the spring pull rod, deviating from the gear claw, penetrates through the avoidance through hole and is fixedly connected to the second body.
For example, in a knee joint hinge device for an orthosis according to at least one embodiment of the present invention, a rotation range of the rotation switch is defined between a first angular position in which the free end is away from the gear pawl and a second angular position in which a line connecting the free end and the rotation connection portion is parallel to a moving direction of the gear pawl.
For example, in a knee joint hinge device for an orthosis according to at least one embodiment of the present invention, the line connecting the free end and the rotational connection is perpendicular to the movement direction of the gear pawl when the rotational switch is in the first angular position.
For example, in the knee joint hinge device for an orthosis according to at least one embodiment of the present invention, an arc-shaped avoiding groove is formed on a side of the gear claw facing away from the gear column for the free end to move.
For example, in the knee joint hinge device for an orthosis according to at least one embodiment of the present invention, the rotation switch is provided with two limit protrusions extending toward the third body, the two limit protrusions being located at both sides of the rotation connection portion, respectively; the third body is provided with a limiting through hole for the limiting protruding piece to pass through, and the shape of the limiting through hole is consistent with the rotating path of the limiting protruding piece; the rotary connecting part is configured into a first connecting through hole, the third body is provided with a second connecting through hole, and the limit column penetrates through the first connecting through hole and the second connecting through hole to realize rotatable installation of the rotary switch; the rotation adjusting mechanism further comprises a switch lock pin, wherein the switch lock pin is suitable for being fixedly connected with the two limiting protruding pieces at the outer side of the third body and is suitable for rotating to drive the rotation switch to synchronously rotate.
For example, in a knee articulation arrangement for an orthosis provided in at least one embodiment of the present invention, the orthosis includes a thigh branch and a shank branch; the lower end of the first body is suitable for being fixedly connected with the upper end of the shank branch; the upper end of the second body is suitable for being fixedly connected with the lower end of the thigh support strip; the upper end of the first body is rotatably connected with the lower end of the second body.
Due to the adoption of the technical scheme, the invention has at least the following advantages:
1. the knee joint hinge device for the orthosis can lock the orthosis through the first body and the second body in the locking mode, after the rehabilitation of the patient is carried out to a certain stage, the connection of the first body and the second body is adjusted to be in a section free locking mode, the orthosis in a preset section can be locked at the moment, and in the subsequent stage, the connection of the first body and the second body is adjusted to be in a free mode, so that the relative rotation of the first body and the second body has complete freedom degree, and the orthosis can realize complete free swing of the legs of the patient.
2. When the connection of the first body and the second body is in a section free locking mode, the distance between the second abutting mechanism and the second end of the rotating connecting piece is adjusted in an electrodeless mode, so that the second body and the first body are abutted to rotate in opposite directions at any intermediate position, the electrodeless adjustment of the relative rotation range of the first body and the second body is realized, and the rehabilitation requirement of a patient can be met in an electrodeless mode.
3. Through the mode of adjusting the connection of first body and second body, can realize the different rehabilitation stages ' of patient's treatment demand on same device, need not make again and change the orthosis, can effectively shorten patient's assistance utensil preparation cycle and extension assistance utensil life cycle.
Drawings
FIG. 1 is an exploded view of a knee articulating device for an orthosis in accordance with at least one embodiment of the present invention;
FIG. 2 is an exploded view of a knee articulating device for an orthosis provided in accordance with at least one embodiment of the present invention;
FIG. 3 is a schematic illustration of the internal structure of a knee articulating device for an orthosis according to at least one embodiment of the present invention;
fig. 4 is a schematic view of a knee joint hinge device for orthoses and thigh and calf bars according to at least one embodiment of the present invention.
The reference numerals in the drawings:
1 is a second body;
2 is a first body;
3 is a rotary connecting piece;
4 is a gear claw;
5 is a rotary switch;
6 is a spring pull rod;
7 is a third body;
8 is a switch lock pin;
9 is a fixed shaft;
10 is thigh support;
11 is a shank branch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "front", "rear", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
At least one embodiment of the present invention provides a knee joint hinge device for an orthosis, which can complete locking of the orthosis through a first body and a second body in a locking mode, adjust connection of the first body and the second body to a section free locking mode after a patient is recovered to a certain stage, at this time, lock the orthosis in a preset section, and, at a subsequent stage, adjust connection of the first body and the second body to a free mode, so that relative rotation of the first body and the second body has a complete degree of freedom, and the orthosis can realize complete free swing of a leg of the patient. According to the invention, through adjusting the connection mode of the first body and the second body, the treatment requirements of different rehabilitation stages of a patient can be realized on the same device, the orthopedic device does not need to be manufactured and replaced again, the rehabilitation requirements of the patient can be adapted steplessly, the manufacturing period of the auxiliary tool of the patient can be effectively shortened, and the service period of the auxiliary tool can be prolonged.
A knee joint hinge device for orthoses according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 4, for example, in at least one embodiment of the present invention, the knee joint hinge device for an orthosis includes: a first body 2, a second body 1 and a rotation adjusting mechanism.
Further, the second body 1 is rotatably connected with the first body 2 about an axis, the second body 1 having a maximum angular position with respect to the first body 2. The connection of the first body 2 and the second body 1 includes a locking mode, an interval free locking mode, and a free mode.
The rotation adjusting mechanism comprises a rotation connecting piece 3, a first abutting mechanism and a second abutting mechanism.
Further, the first end of the rotary connecting piece 3 is rotatably connected with the second body 1 around the axis, and the second end is fixedly connected with the first body 2 and is provided with a limiting structure positioned on the outer side of the axis in the circumferential direction.
Further, the first abutment mechanism is adapted to abut against the opposite rotation of the second body 1 in the maximum angular position and the first body 2.
Further, the second abutment mechanism is adapted to follow the synchronous rotation of the second body 1 and the second abutment mechanism is adapted to move with a near-to-far locked position, an intermediate position and an unlocked position relative to the second end.
Further, the knee articulation device for an orthosis is adapted to: when the first body 2 and the second body 1 are in the locking mode, the abutting mechanism is located at the locking position and is limited by the limiting structure to abut against the second body 1 to rotate in opposite directions of the first body 2 at the maximum angle position, at the moment, the rotation between the first body 2 and the second body 1 is completely locked, the opposite rotation and the opposite rotation of the first body 2 and the second body cannot be realized, and the orthosis with the abutting mechanism is suitable for patients needing to be fixed knee joint hinges in early rehabilitation.
Further, the knee articulation for orthoses is also adapted to: when the first body 2 and the second body 1 are in the interval free locking mode, the abutting mechanism is located at the middle position and is suitable for being limited by the limiting structure after following the second body 1 to rotate for a preset distance so as to abut against the second body 1 and the first body 2 to rotate in opposite directions, at the moment, the rotation between the first body 2 and the second body 1 is limited within a certain range, the opposite rotation and the opposite rotation of the first body 2 and the second body are abutted against at the preset position, and the orthosis with the abutting mechanism is suitable for patients needing a certain degree of freedom of movement in the knee joint hinge at the middle stage of rehabilitation.
Further, the knee articulation for orthoses is also adapted to: when the first body 2 and the second body 1 are in a free mode, the abutting mechanism is located at an unlocking position, and always keeps away from the limiting structure in the opposite rotation process of the second body 1 and the first body 2, at the moment, opposite rotation between the first body 2 and the second body 1 is not limited any more, and the orthosis with the abutting mechanism is suitable for patients needing complete freedom of movement of the knee joint hinge in the later stage of rehabilitation.
For example, in at least one embodiment of the present invention, the first body 2 includes a limit stop, and the limit stop is provided with a limit via. The first stopping mechanism is configured to be fixedly arranged on the second body 1 and is penetrated by a limiting column of the limiting via hole, and the limiting column rotates along with the second body 1. The shape of the limiting via hole is consistent with the movement path of the limiting column, namely, the shape of the limiting via hole is arc-shaped, and one end of the limiting via hole is suitable for: when the second body 1 rotates to the maximum angle position, the rotation of the limiting column is stopped, so that the second body 1 and the first body 2 are stopped from rotating in opposite directions.
For example, in at least one embodiment of the present invention, the rotary connecting member 3 includes a connecting cylinder rotatably connected to the second body 1 and fixedly connected to the first body 2, and a gear cylinder for setting a limiting structure, the gear cylinder is fixedly connected to an end surface of the connecting cylinder, the limiting structure is configured as teeth disposed on an outer circumferential surface of the gear cylinder, and projections of the gear cylinder and the connecting cylinder in an axial direction are non-concentric circles; the second abutment mechanism is configured as a gear pawl 4, the gear pawl 4 being adapted to engage with the gear teeth and being limited in its circumferential direction. When the connecting column body rotates along with the first body 2, the gear teeth arranged on the gear column body rotate and gradually approach the gear claw 4 until the gear teeth are meshed with the gear claw 4 and are limited mutually, and as can be understood, the relative rotation amplitude of the first body 2 and the second body 1 can be adjusted by adjusting the rotation range of the gear column body.
However, the present design is not limited thereto, and in other embodiments the teeth on the gear cylinder may be replaced with e.g. lugs, and the gear pawl 4 may be provided as e.g. an interceptor member corresponding to the lugs.
For example, in at least one embodiment of the present invention, the rotation adjustment mechanism further includes a spring tie 6 and a rotation switch 5.
Further, the spring tie rods 6 are configured in a plurality of pieces, the spring tie rods 6 are arranged at intervals, one end of the spring tie rods in the elastic direction is fixedly connected to one side of the gear claw 4, which is away from the gear cylinder, and the other end of the spring tie rods is fixedly connected to the second body 1. It will be appreciated that the spring tie rod 6 is so arranged as to facilitate maintaining the balance and stability of the forces of the gear pawl 4.
Further, the rotary switch 5 includes a rotary connecting portion located in the middle and a free end adapted to rotate around the rotary connecting portion, and the rotary switch 5 is adapted to rotate to push the gear pawl 4 through the free end to move while the spring tie rod 6 is rotated from the normal state to the stretched state. When the rotary switch 5 rotates reversely, the spring pull rod 6 drives the gear claw 4 to move reversely due to elastic potential energy. In this way, it is possible to adjust the degree of movement of the gear pawl 4 so that it is switched between the locking position, the intermediate position and the unlocking position; the degree of movement of the gear claw 4 is adjusted steplessly, so that the gear cylinder can be limited at different intermediate positions, and the stepless adjustment of the relative rotation range of the first body and the second body is realized.
However, the present design is not limited thereto, and in other embodiments, the push rod may be driven to extend and retract by the motor assembly to adjust the position of the gear pawl 4.
For example, in at least one embodiment of the present invention, at least two of the spring levers 6 are provided separately on both sides of the rotary switch 5. In this way, the gear claw 4 can be beneficial to keeping the stress balance and stability of the two ends during movement.
For example, in at least one embodiment of the present invention, the knee joint hinge device for an orthosis further comprises a third body 7, the third body 7 being fixedly connected to the second body 1 and forming a mounting position therebetween for the insertion mounting of the first body 2.
Further, the first body 2 is provided with a first through hole for fixedly connecting the connecting column, the second body 1 is provided with a second through hole for rotatably connecting the connecting column, the connecting column is provided with a third through hole, the third body 7 is provided with a fourth through hole, the third through hole and the fourth through hole are suitable for penetrating a rotatable fixing shaft 9, and two ends of the fixing shaft 9 are respectively limited with the second body 1 and the third body 7 in the axial direction.
Further, the third body 7 is provided with an avoidance through hole, and one end, deviating from the gear claw 4, of the spring pull rod 6 is penetrated through the avoidance through hole and then fixedly connected to the second body 1.
In this embodiment, the third body 7 can cover the first body 2 and the second body 1, and can fixedly mount and protect the rotatable connection structure of the two.
For example, in at least one embodiment of the present invention, the rotation range of the rotation switch 5 is defined between a first angular position, in which the free end of the rotation switch 5 is away from the gear pawl 4, and a second angular position, in which the line connecting the free end and the rotation connection is parallel to the movement direction of the gear pawl 4. Thus, when the rotary switch 5 is rotated to the second angular position, the gear pawl 4 is moved to the position closest to the gear cylinder.
For example, in at least one embodiment of the present invention, when the rotary switch 5 is at the first angular position, the connection line between the free end and the rotary connection portion is perpendicular to the moving direction of the gear pawl 4. That is, in the present embodiment, the rotation range of the rotation switch 5 is defined within a right angle sector.
For example, in at least one embodiment of the present invention, the side of the gear claw 4 facing away from the gear cylinder is provided with an arc-shaped avoiding groove for the free end of the rotary switch 5 to move. The free end of the rotary switch 5 can pass through the arc avoiding groove in the rotation process, and the wall surface of the arc avoiding groove is propped against, so that the consumable of the gear claw 4 can be saved due to the arrangement of the arc avoiding groove, the internal structure of the device is more compact, and the whole volume is smaller.
For example, in at least one embodiment of the present invention, the rotary switch 5 is provided with two limiting protrusions extending toward the third body 7, the two limiting protrusions being located at both sides of the rotary connection portion, respectively.
Further, a limiting through hole for the limiting protruding piece to penetrate is formed in the third body 7, the shape of the limiting through hole is consistent with the rotating path of the limiting protruding piece, namely, the shape of the limiting through hole is arc-shaped, and the limiting protruding piece can rotate through the inside of the limiting through hole.
Further, the rotation connecting portion is configured as a first connection through hole, the third body 7 is provided with a second connection through hole, the limit post penetrates through the first connection through hole and the second connection through hole to realize rotatable installation of the rotation switch 5, and the rotation switch 5 can rotate by taking the limit post as an axis.
Further, the rotation adjusting mechanism further comprises a switch lock pin 8, wherein the switch lock pin 8 is suitable for being fixedly connected with the two limiting protruding pieces at the outer side of the third body 7 and is suitable for rotating to drive the rotation switch 5 to synchronously rotate. The user rotates the switch 5 to lock the pin to a preset angle position, so that the rotary switch 5 drives the gear claw 4 to move to a target position.
For example, in at least one embodiment of the invention, the orthosis comprises a thigh brace 10 and a shank brace 11, wherein the thigh brace 10 is adapted for a fixed connection with a thigh of a patient and the shank brace 11 is adapted for a fixed connection with a shank of the patient.
Further, the lower end of the first body 2 is adapted to be fixedly connected with the upper end of the shank branch 11; the upper end of the second body 1 is suitable for being fixedly connected with the lower end of the thigh support 10; the upper end of the first body 2 is rotatably connected with the lower end of the second body 1.
It should be noted that "and/or" in the whole text includes three schemes, taking "a and/or B" as an example, including a technical scheme, a technical scheme B, and a technical scheme that a and B meet simultaneously.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A knee joint hinge device for an orthosis, comprising:
a first body;
a second body rotatably connected to the first body about an axis and having a maximum angular position relative to the first body, the connection of the two comprising a locking mode, an interval free locking mode and a free mode; and
the rotation adjusting mechanism comprises a rotation connecting piece, a first abutting mechanism and a second abutting mechanism, wherein the first end of the rotation connecting piece is rotatably connected with the second body around the axis, the second end of the rotation connecting piece is fixedly connected with the first body, a limiting structure positioned on the outer side of the circumference of the axis is arranged, the first abutting mechanism is suitable for abutting against the second body to rotate in the maximum angle position and the opposite direction of the first body, the second abutting mechanism is suitable for following the second body to synchronously rotate, and the second abutting mechanism is suitable for moving to have a locking position, a middle position and an unlocking position from the near to the far relative to the second end;
the knee articulation device for an orthosis is adapted to:
when the first body and the second body are in the locking mode, the abutting mechanism is located at the locking position and is limited by the limiting structure so as to abut against opposite rotation of the second body at the maximum angle position and the first body;
when the first body and the second body are in the interval free locking mode, the abutting mechanism is positioned at the middle position and is suitable for being limited by the limiting structure after rotating along with the second body for a preset distance so as to abut against the second body and the first body to continuously rotate in opposite directions;
when the first body and the second body are in the free mode, the abutting mechanism is located at the unlocking position, and in the opposite rotation process of the second body and the first body, the abutting mechanism is always far away from the limiting structure.
2. The knee joint hinge apparatus for orthosis according to claim 1, wherein,
the first body comprises a limit baffle, a limit through hole is formed in the limit baffle, the first abutting mechanism is configured to be fixedly arranged on the second body and penetrate through a limit post of the limit through hole, the shape of the limit through hole is consistent with the motion path of the limit post, and one end of the limit through hole is suitable for abutting against the rotation of the limit post when the second body rotates to the maximum angle position so as to abut against the second body and the first body to rotate continuously in a reverse direction.
3. The knee joint hinge apparatus for orthosis according to claim 2, wherein,
the rotary connecting piece comprises a connecting cylinder which is used for being rotatably connected with the second body and fixedly connected with the first body, and a gear cylinder which is used for setting a limiting structure, wherein the gear cylinder is fixedly connected with the end face of the connecting cylinder, the limiting structure is configured as gear teeth arranged on the peripheral surface of the gear cylinder, and the projections of the gear cylinder and the connecting cylinder in the axial direction are non-concentric circles;
the second abutment mechanism is configured as a gear pawl adapted to engage with the gear teeth and limit the gear pawl in its circumferential direction.
4. A knee joint hinge apparatus for orthosis according to claim 3, characterized in that,
the rotation adjusting mechanism further comprises a plurality of spring pull rods and a rotation switch, the spring pull rods are arranged at intervals, one ends of the spring pull rods in the elastic direction are fixedly connected to one sides, deviating from the gear cylinder, of the gear claw, the other ends of the spring pull rods are fixedly connected to the second body, the rotation switch comprises a rotation connecting portion located in the middle and a free end suitable for rotating around the rotation connecting portion, the rotation switch is suitable for rotating to push the gear claw to move through the free end, and meanwhile the spring pull rods are changed into a stretching state from a normal state.
5. The knee joint hinge apparatus for orthosis according to claim 4, wherein,
at least two of the spring pull rods are respectively arranged at two sides of the rotary switch.
6. The knee joint hinge apparatus for orthosis according to claim 4, wherein,
the knee joint hinging device for the orthosis further comprises a third body fixedly connected with the second body, a mounting position for the first body to be inserted and mounted is formed between the third body and the second body, a first through hole is formed in the first body for fixedly connecting the connecting column, a second through hole is formed in the second body for rotatably connecting the connecting column, a third through hole is formed in the connecting column, a fourth through hole is formed in the third body, the third through hole and the fourth through hole are suitable for being penetrated by a rotatable fixing shaft, and two ends of the fixing shaft are respectively limited with the second body and the third body in the axial direction;
the third body is provided with an avoidance through hole, and one end of the spring pull rod, deviating from the gear claw, penetrates through the avoidance through hole and is fixedly connected to the second body.
7. The knee joint hinge apparatus for orthosis according to claim 6, wherein,
the rotation range of the rotation switch is limited between a first angle position and a second angle position, the free end of the rotation switch is far away from the gear claw in the first angle position, and the connecting line of the free end and the rotation connecting part is parallel to the moving direction of the gear claw in the second angle position.
8. The knee joint hinge apparatus for orthosis according to claim 7, wherein,
when the rotary switch is at the first angle position, the connecting line of the free end and the rotary connecting part is perpendicular to the moving direction of the gear claw; and/or
The gear claw is far away from one side of the gear cylinder body and provided with an arc-shaped avoiding groove for the free end to move.
9. The knee joint hinge apparatus for orthosis according to claim 6, wherein,
the rotary switch is provided with two limiting protruding pieces extending towards the third body, and the two limiting protruding pieces are respectively positioned at two sides of the rotary connecting part;
the third body is provided with a limiting through hole for the limiting protruding piece to pass through, and the shape of the limiting through hole is consistent with the rotating path of the limiting protruding piece;
the rotary connecting part is configured into a first connecting through hole, the third body is provided with a second connecting through hole, and the limit column penetrates through the first connecting through hole and the second connecting through hole to realize rotatable installation of the rotary switch;
the rotation adjusting mechanism further comprises a switch lock pin, wherein the switch lock pin is suitable for being fixedly connected with the two limiting protruding pieces at the outer side of the third body and is suitable for rotating to drive the rotation switch to synchronously rotate.
10. The knee joint hinge apparatus for orthosis according to any one of claims 1 to 9, characterized in that,
the orthosis comprises thigh branches and shank branches;
the lower end of the first body is suitable for being fixedly connected with the upper end of the shank branch; the upper end of the second body is suitable for being fixedly connected with the lower end of the thigh support strip;
the upper end of the first body is rotatably connected with the lower end of the second body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311298319.2A CN117243743B (en) | 2023-10-09 | Knee joint hinge device for orthosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311298319.2A CN117243743B (en) | 2023-10-09 | Knee joint hinge device for orthosis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117243743A true CN117243743A (en) | 2023-12-19 |
| CN117243743B CN117243743B (en) | 2024-05-14 |
Family
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0369786A1 (en) * | 1988-11-16 | 1990-05-23 | Unisearch Limited | Friction self-locking joint for whole-leg calipers |
| EP1186279A1 (en) * | 2000-09-07 | 2002-03-13 | Ferdinand Hauber GmbH & Co. KG | Hinged orthopaedic brace having motion induced unlocking |
| US20030100853A1 (en) * | 2001-11-28 | 2003-05-29 | Jyunpei Yamasaki | Knee Brace |
| US20100016772A1 (en) * | 2008-07-21 | 2010-01-21 | Anatomical Concepts, Inc. | Multiple function ratcheting orthotic device |
| CN103006362A (en) * | 2012-12-31 | 2013-04-03 | 李建军 | Knee-joint hinge of standing period control orthosis |
| JP2013070783A (en) * | 2011-09-27 | 2013-04-22 | Equos Research Co Ltd | Walking support device |
| JP2013074920A (en) * | 2011-09-29 | 2013-04-25 | Ntn Corp | Limb joint brace |
| CN103767815A (en) * | 2014-01-14 | 2014-05-07 | 北京理工大学 | Front dynamic ankle rehabilitation orthotics device |
| JP2018089284A (en) * | 2016-12-07 | 2018-06-14 | 住友重機械工業株式会社 | Assisting device |
| CN109806107A (en) * | 2019-02-22 | 2019-05-28 | 广州哈罗博康复机器人生产有限公司 | Rehabilitation system |
| US10744021B1 (en) * | 2019-05-17 | 2020-08-18 | Richard Nace | Device for, and method of, protecting knees from external forces |
| CN211325973U (en) * | 2019-12-16 | 2020-08-25 | 重庆欧特斯医疗器械有限公司 | Positioning structure of knee joint fixator |
| CN211461081U (en) * | 2019-09-16 | 2020-09-11 | 中国康复科学所 | Rehabilitation standing frame |
| CN115444640A (en) * | 2022-09-20 | 2022-12-09 | 河西学院附属张掖人民医院 | Buffering formula knee joint brace of treatment knee hyperextension |
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0369786A1 (en) * | 1988-11-16 | 1990-05-23 | Unisearch Limited | Friction self-locking joint for whole-leg calipers |
| EP1186279A1 (en) * | 2000-09-07 | 2002-03-13 | Ferdinand Hauber GmbH & Co. KG | Hinged orthopaedic brace having motion induced unlocking |
| US20030100853A1 (en) * | 2001-11-28 | 2003-05-29 | Jyunpei Yamasaki | Knee Brace |
| US20100016772A1 (en) * | 2008-07-21 | 2010-01-21 | Anatomical Concepts, Inc. | Multiple function ratcheting orthotic device |
| JP2013070783A (en) * | 2011-09-27 | 2013-04-22 | Equos Research Co Ltd | Walking support device |
| JP2013074920A (en) * | 2011-09-29 | 2013-04-25 | Ntn Corp | Limb joint brace |
| CN103006362A (en) * | 2012-12-31 | 2013-04-03 | 李建军 | Knee-joint hinge of standing period control orthosis |
| CN103767815A (en) * | 2014-01-14 | 2014-05-07 | 北京理工大学 | Front dynamic ankle rehabilitation orthotics device |
| JP2018089284A (en) * | 2016-12-07 | 2018-06-14 | 住友重機械工業株式会社 | Assisting device |
| CN108158785A (en) * | 2016-12-07 | 2018-06-15 | 住友重机械工业株式会社 | Auxiliary device |
| CN109806107A (en) * | 2019-02-22 | 2019-05-28 | 广州哈罗博康复机器人生产有限公司 | Rehabilitation system |
| US20200268585A1 (en) * | 2019-02-22 | 2020-08-27 | Guangzhou Harobot Rehabilitation Robot Production | Rehabilitation robot and rehabilitation system |
| US10744021B1 (en) * | 2019-05-17 | 2020-08-18 | Richard Nace | Device for, and method of, protecting knees from external forces |
| CN211461081U (en) * | 2019-09-16 | 2020-09-11 | 中国康复科学所 | Rehabilitation standing frame |
| CN211325973U (en) * | 2019-12-16 | 2020-08-25 | 重庆欧特斯医疗器械有限公司 | Positioning structure of knee joint fixator |
| CN115444640A (en) * | 2022-09-20 | 2022-12-09 | 河西学院附属张掖人民医院 | Buffering formula knee joint brace of treatment knee hyperextension |
Non-Patent Citations (3)
| Title |
|---|
| RYUKI SATO, ET.AL: "Pre-Landing Control for a Legged Robot Based on Tiptoe Proximity Sensor Feedback", 《IEEE》, 21 February 2022 (2022-02-21), pages 21619 - 21630 * |
| 吴鹏凡: "基于下楼场景的膝关节被动式外骨骼研究", 《中国优秀硕士学位论文全文数据库 基础科学辑》, 31 October 2022 (2022-10-31), pages 1 - 88 * |
| 孙增晖，刘宁，张洪国: "一种抗冲击四节点柔性关节的设计与分析", 《机电工程》, vol. 38, no. 5, 31 May 2021 (2021-05-31), pages 650 - 654 * |
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