CN115501079A - Knee joint rehabilitation exercise protection device and protection method - Google Patents
Knee joint rehabilitation exercise protection device and protection method Download PDFInfo
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- CN115501079A CN115501079A CN202110699634.0A CN202110699634A CN115501079A CN 115501079 A CN115501079 A CN 115501079A CN 202110699634 A CN202110699634 A CN 202110699634A CN 115501079 A CN115501079 A CN 115501079A
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- 210000000629 knee joint Anatomy 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 16
- 210000000689 upper leg Anatomy 0.000 claims abstract description 71
- 210000003127 knee Anatomy 0.000 claims abstract description 30
- 230000033001 locomotion Effects 0.000 claims description 48
- 230000001012 protector Effects 0.000 claims description 6
- 230000017531 blood circulation Effects 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000011084 recovery Methods 0.000 description 7
- 208000003947 Knee Osteoarthritis Diseases 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 201000008482 osteoarthritis Diseases 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 4
- 230000005021 gait Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000002414 leg Anatomy 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 208000006820 Arthralgia Diseases 0.000 description 1
- 206010060820 Joint injury Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002757 inflammatory effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 208000024765 knee pain Diseases 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000037230 mobility Effects 0.000 description 1
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- 208000024891 symptom Diseases 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
- A61H1/024—Knee
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/00181—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices comprising additional means assisting the user to overcome part of the resisting force, i.e. assisted-active exercising
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
- A63B23/0494—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs primarily by articulating the knee joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/16—Physical interface with patient
- A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
- A61H2201/164—Feet or leg, e.g. pedal
- A61H2201/1642—Holding means therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/10—Leg
- A61H2205/102—Knee
Landscapes
- Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- Biophysics (AREA)
- Pain & Pain Management (AREA)
- Rehabilitation Therapy (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention relates to a knee joint rehabilitation exercise protection device and a protection method, belongs to the technical field of rehabilitation equipment and equipment, and solves the problem that a knee joint protection device influences the blood circulation of a knee in the prior art. The thigh support comprises a thigh support, a crank, an arc guide rail, a linear guide rail and a shank support, wherein the lower end of one side of the thigh support is sequentially connected with the arc guide rail, the linear guide rail and the upper end of one side of the shank support, and the lower end of the other side of the thigh support is connected with the upper end of the other side of the shank support through the crank. The invention does not influence the normal bending and stretching freedom degree of the human knee joint and can improve the stress condition of the knee joint.
Description
Technical Field
The invention relates to the technical field of rehabilitation equipment, in particular to a knee joint rehabilitation exercise protection device and a protection method.
Background
The knee joint is the most complex of all the joints of the human body because it bears most of the weight of the human body, and the knee joint moves frequently in daily life and is a key part of the lower limb movement of the human body. Because of this, the incidence of knee joint injuries is also the highest among all joints. For the patients with knee osteoarthritis in early and middle stages, pain can be reduced and symptoms can be relieved by taking medicines, wearing orthotics and the like, and for the patients with knee osteoarthritis in later stages, knee joint replacement is an option for effectively relieving knee pain and restoring the activity of the knee joint. For a patient who chooses to replace the knee bone joint, because a part of bone can be cut off in the operation process, the knee joint made of metal materials is replaced, and the growth of the surrounding muscles and tissues is a very long process, the recovery period of the general knee bone joint replacement patient after the operation is very long, generally 1-2 years, and the time for recovering the state before the operation is longer, so that how to make the patient to pass the recovery period faster and safer is very significant.
The existing knee joint protection apparatus plays a role in stabilizing the knee through tightening of the bandage, but the knee blood circulation is influenced after long-term wearing, so that the recovery of the knee is negatively influenced.
Disclosure of Invention
In view of the above analysis, the embodiments of the present invention provide a knee joint rehabilitation exercise protection device and a protection method, so as to solve the problem that the existing knee joint protection device affects the blood circulation of the knee.
On one hand, the invention provides a knee joint rehabilitation exercise protection device which comprises a thigh support, a crank, an arc guide rail, a linear guide rail and a shank support, wherein the lower end of one side of the thigh support is sequentially connected with the arc guide rail, the linear guide rail and the upper end of one side of the shank support, and the lower end of the other side of the thigh support is connected with the upper end of the other side of the shank support through the crank.
Furthermore, the lower end of one side of the thigh support is connected with the upper end of the arc guide rail, and the lower end of the arc guide rail is connected with the upper end of the shank support through the linear guide rail.
Further, the circular arc guide rail comprises a first guide rail part and a first sliding block part, the first guide rail part is arc-shaped and is arranged in an arc-shaped groove formed in the lower end of one side of the thigh support, one end of the first sliding block part is arranged in the guide rail of the first guide rail part to slide, and the other end of the first sliding block part is provided with a bearing hole.
Furthermore, a bearing is arranged in the bearing hole, and a baffle supporting pin and a bearing inner baffle are respectively arranged on two sides of the bearing.
And one end of the linear guide rail connecting seat sequentially penetrates through the bearing inner baffle and the inner ring of the bearing to be connected with the baffle supporting pin, and the other end of the linear guide rail connecting seat is connected with the linear guide rail.
Further, the linear guide comprises a second guide rail part and a second sliding block part, the second guide rail part is connected with the upper end of one side of the shank support, and the second sliding block part is connected with the linear guide connecting seat.
Further, when a user wears the knee joint rehabilitation exercise protection device and stands, the arc guide rail is in a horizontal state, and the crank and the linear guide rail are in a vertical state.
Furthermore, slotted holes are formed in the lower end of the other side of the thigh support and the upper end of the other side of the shank support, two ends of the crank are arranged in the slotted holes and are provided with joint bearing holes, and joint bearings are arranged in the joint bearing holes.
Furthermore, the thigh support and the shank support are also provided with binding bands.
On the other hand, the invention provides a knee joint rehabilitation exercise protection method, which adopts the knee joint rehabilitation exercise protection device and comprises the following steps:
the user wears the knee joint rehabilitation exercise protection device and adjusts the length of the binding band and the tension of the elastic connecting piece; the crank follows the inner and outer rotation of the inner side of the knee joint, and the arc guide rail follows the inner and outer rotation of the outer side of the knee joint; the knee joint rehabilitation motion protection device moves in a sagittal plane along with the knee joint, the elastic connecting piece provides power, and the knee joint rehabilitation motion protection device moves outwards in a coronal plane along with the knee joint.
Compared with the prior art, the invention can realize at least one of the following beneficial effects:
(1) The invention utilizes the arc guide rail to follow the internal and external rotation movement of the knee on the horizontal plane and limits the internal and external rotation angles of the knee through the limited length of the guide rail; the bearing and the linear guide rail are utilized to follow the flexion and extension movement of the knee in the sagittal plane, so that the normal flexion and extension freedom degree of the knee joint of the human body is not influenced;
(2) The invention utilizes the knuckle bearing and the curved bar to follow the inner and outer turning motion of the knee joint in the coronal plane, and utilizes the limited stroke of the linear guide rail and the limited rotation angle of the knuckle bearing to limit the inner and outer turning angle of the knee joint; the elastic connecting piece is used for providing assistance for the knee joint, so that the stress condition of the knee joint can be improved;
(3) The length of the bandage is adjusted by utilizing the locking buckle designed by the ratchet wheel, the pawl and the gear rack, self-locking can be realized, the tightening state of the bandage is kept, the tightness of the bandage is conveniently adjusted, and meanwhile, the wearing comfort and the self-locking stability are improved;
(4) The knee joint protection device can ensure that the knee moves in a normal range, limit the angle ranges of internal and external rotation and internal and external rotation, provide certain assistance for the knee joint, play a role in protecting the knee under the condition of not influencing the normal movement of the knee joint, and provide a safe and good recovery environment for patients with knee osteoarthritis;
(5) The invention can guide the knee joint to move in a normal and reasonable range, can accelerate the rehabilitation process of the knee joint, and solves the problem that the blood circulation of the knee joint is influenced by the existing bandage product.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
Fig. 1 is a schematic overall structure diagram of a knee joint rehabilitation exercise protection device according to an embodiment;
FIG. 2 is a sectional view of a circular arc guide rail connection structure of an embodiment;
FIG. 3 is a first view of a circular arc guide rail structure according to an embodiment;
FIG. 4 is a schematic structural diagram of a circular guide rail according to an embodiment (II);
FIG. 5 is a schematic structural diagram of a circular guide rail according to an embodiment (III);
FIG. 6 is a schematic view of a linear guide structure according to an embodiment;
FIG. 7 is a cross-sectional view of a crank attachment configuration of an exemplary embodiment;
FIG. 8 is a schematic view of a locking buckle according to an embodiment;
FIG. 9 is a cross-sectional view of a locking buckle arrangement according to an exemplary embodiment;
FIG. 10 is a schematic view of a locking buckle according to an embodiment;
fig. 11 is a sectional view of the locking buckle structure of the embodiment;
fig. 12 is a schematic view of a gear-rack connection structure of the locking buckle according to the embodiment;
FIG. 13 is a sagittal plane motion view of the knee joint rehabilitation motion protection device of the embodiment;
fig. 14 is a sagittal plane motion diagram (ii) of the knee joint rehabilitation motion protection device according to the embodiment;
FIG. 15 is a schematic coronal view of a knee joint rehabilitation exercise protection device according to an embodiment;
fig. 16 is a schematic diagram (ii) showing the coronal plane motion of the knee joint rehabilitation motion protection device according to the embodiment.
Reference numerals:
1-a thigh support; 2-a bandage; 3-locking and buckling; 31-a positioning bracket; 32-rack guide rail; 33-a top plate; 34-side plates; 35-a bottom plate; 4-thigh protection pad; 5-a curved bar; 6-shank protection pad; 7-a circular arc guide rail; 71-a first guide rail part; 72-a first slider part; 8-an elastic connection; 9-a shutter support pin; 10-a linear guide rail; 101-a second guide track; 102-a second slider part; 11-lower leg support; 12-a bearing; 13-baffle support pin set screws; 14-bearing inner baffles; 15-a linear guide rail connecting seat; 16-knuckle bearing; 17-a knuckle bearing pin; 18-bearing external snap spring; 19-a bearing inner snap spring; 20-ratchet toggle pin; 21-spring pressure pin; 22-a pawl spring; 23-a pawl; 24-a ratchet wheel; 25-a rack; 26-a sawtooth press plate; 27-a locking buckle support; 28-connecting pin; 29-thrust pin.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention and not to limit its scope.
In the description of the embodiments of the present invention, it should be noted that the term "connected" is to be understood broadly, and may be, for example, fixed, detachable, or integrally connected, and may be mechanically or electrically connected, and may be directly or indirectly connected through an intermediate medium, unless otherwise specifically stated or limited. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The terms "top," "bottom," "at 8230; \8230; above," "below," and "at 8230; above" are used throughout the description to refer to the relative positions of the components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.
Due to the existing knee joint protection apparatus, the knee is stabilized by tightening the bandage, but the blood circulation of the knee is affected after long-term wearing, so that the recovery of the knee is negatively affected. The invention aims to provide a knee joint rehabilitation exercise protection device and a protection method, which have the effects of stabilizing a knee joint, reducing the influence on the blood circulation of the knee joint and enabling a knee bone joint replaced inflammatory patient to recover the mobility and normal life more quickly.
Example 1
One embodiment of the invention, as shown in fig. 1, discloses a knee joint rehabilitation exercise protection device, which comprises a thigh support 1, a crank 5, an arc guide 7, a linear guide 10 and a shank support 11, wherein the lower end of one side of the thigh support 1 is sequentially connected with the arc guide 7, the linear guide 10 and the upper end of one side of the shank support 11, and the lower end of the other side of the thigh support 1 is connected with the upper end of the other side of the shank support 11 through the crank 5.
Compared with the prior art, according to the knee joint rehabilitation exercise protection device provided by the embodiment, one side of the thigh support is connected with one side of the shank support through the arc guide rail and the linear guide rail which are connected with each other, the other side of the thigh support is connected with the other side of the shank support through the crank, so that the knee can be ensured to move in a normal range, the angle ranges of internal rotation and external rotation and internal eversion are limited, the knee is protected under the condition that the normal movement of the knee joint is not influenced, and a safe and good recovery environment can be provided for patients with knee osteoarthritis; the device has solved the problem that current bandage product influences knee joint blood and has transported, can guide the knee joint to move at normal reasonable within range, can accelerate the recovered process of knee joint.
In the natural state, that is, in the standing state where the user wears the protector, the circular arc guide 7 is in the horizontal state, and the crank 5 and the linear guide 10 are in the vertical state.
Thigh support 1 is a kind of semi-cylindrical structure, adopts the big shank of the circular arc adaptation user of kind semi-cylindrical structure, and thigh support 1's both sides are equipped with the journal stirrup respectively, and the journal stirrup is connected with bandage 2, and specifically, the one end of bandage 2 is passed through the journal stirrup fixed connection of rivet and thigh support 1 one side, and the other end is connected through the journal stirrup of the opposite side of adjusting locking mechanism and thigh support 1, adjusts locking mechanism and locates on thigh support 1's the journal stirrup.
In this embodiment, in order to adapt to the wearing of different users, the length of the binding band 2 is adjusted by the adjusting and locking mechanism, and the adjusting and locking mechanism only needs to adjust the length of the binding band 2.
In order to firmly connect the thigh support 1 to the user, the upper end and the lower end of the thigh support 1 are respectively provided with a strap 2.
In this embodiment, adjust locking mechanism and be locking buckle 3, locking buckle 3 passes through fix with rivet on thigh support 1, through the tight length of tightening that changes bandage 2, matches the thigh diameter of wearer.
As shown in fig. 8-11, the locking buckle 3 includes a ratchet 24, a rack 25, and a locking buckle support 27, the locking buckle support 27 is provided with a positioning support 31 and a rack guide rail 32, the positioning support 31 is perpendicular to the rack guide rail 32, the positioning support 31 is used for positioning a spatial position of the ratchet 24, the rack guide rail 32 provides a sliding guide for movement of the rack 25, two ends of a shaft of the ratchet 24 are provided on the positioning support 31, two sides of the ratchet 24 are respectively provided with a gear, the gears are engaged with the rack 25, and the rack 25 slides in the rack guide rail 32.
Specifically, the locking buckle bracket 27 is of a '21274', and is formed by a top plate 33, a side plate 34 and a bottom plate 35, a rack guide rail 32 is arranged in the middle of the side plate 34, two support columns are arranged on two sides of the bottom plate 35 to form a positioning bracket 31, and two ends of a shaft of the ratchet wheel 24 are rotatably connected with the tops of the support columns.
In order to press-fasten the strap 2, the locking buckle 3 further comprises a serrated pressure plate 26, and in order to better adapt to straps 2 of different shapes and to compact the strap 2, considering that the thickness of the strap 2 may be uneven, one end of the rack 25 is hinged to the serrated pressure plate 26 by a connecting pin 28, and the other end slides in a rack guide 32. The both ends of the saw-toothed pressing plate 26 are caught between the top plate 33 and the bottom plate 35 of the locking buckle holder 27, and the distance between the saw-toothed pressing plate 26 and the band 2 can be changed when the rack 25 slides in the rack guide 32, thereby pressing or releasing the band 2. It should be noted that, there is a gap between the two ends of the serrated pressure plate 26 and the top plate 33 and the bottom plate 35 to avoid interference when the serrated pressure plate 26 deflects. Preferably, the band 2 is provided with a plurality of holes matched with the sawtooth pressing plates 26, and the sawtooth pressing plates 26 are matched with the holes at different positions on the band 2, so that the band 2 can be more firmly pressed.
In order to compress the adjusted binding band 2, the locking buckle 3 further comprises a spring pressure pin 21, a pawl spring 22 and a pawl 23, the spring pressure pin 21 is provided with threads and is arranged in a threaded hole of a top plate 33 of the locking buckle support 27, the lower end of the spring pressure pin 21 is fixedly connected with one end of the pawl spring 22, the other end of the pawl spring 22 is fixedly connected with one end of the pawl 23, and the other end of the pawl 23 (the tail end of the pawl 23) is hinged with the locking buckle support 27.
As another possibility of this embodiment, one end of the pawl spring 22 is connected to the lock buckle bracket 27, the other end is connected to the front end of the pawl 23, the rear end of the pawl 23 is hinged to the lock buckle bracket 27, the pawl 23 is in a rebounded state under the action of the pawl spring 22, the lower end of the spring pressure pin 21 presses against the front end of the pawl 23, the pawl 23 can be made to block the ratchet 24 when the spring pressure pin 21 moves downwards, and the pawl 23 rebounds to be disengaged from the ratchet 24 under the action of the pawl spring 22 when the spring pressure pin 21 moves upwards. It should be noted that the front end of the pawl 23 in this embodiment refers to the end of the pawl 23 used for limiting the rotation of the ratchet wheel 24.
The locking buckle 3 further comprises a ratchet toggle pin 20 and a thrust pin 29, one end of the ratchet toggle pin 20 is arranged in a hole at the top of the locking buckle support 27, the other end of the ratchet toggle pin passes through the top plate 33 and is provided with a strip-shaped groove hole, the strip-shaped groove hole is parallel to the rack guide rail 32, the ratchet 24 is provided with an arc-shaped groove hole, one end of the thrust pin 29 is arranged in the strip-shaped groove hole, the other end of the thrust pin is arranged in the arc-shaped groove hole of the ratchet 24, along with the downward movement of the ratchet toggle pin 20, the thrust pin 29 moves in the strip-shaped groove hole at the lower end of the ratchet toggle pin 20, and then the ratchet 24 is driven to rotate, as shown in fig. 12, a gear fixedly connected with the ratchet 24 rotates synchronously, and then the rack 25 is driven to move outwards, so that the toothed pressing plate 26 presses the bandage 2.
It should be noted that the plurality of arc-shaped slots on the ratchet wheel 24 are communicated but not concentrically arranged, so that the thrust pin 29 has an acting point at the intersection of the two arc-shaped slots during the pressing process of the ratchet wheel toggle pin 20, and further the ratchet wheel 24 is pushed to rotate. Preferably, in this embodiment, three arc-shaped slots are provided. Preferably, each arc-shaped slot is the same in length.
Further, the periphery of the ratchet toggle pin 20 is sleeved with a spring, the spring is arranged in the hole of the top plate 33, one end of the spring abuts against the lower end of the pin cap of the ratchet toggle pin 20, and the other end of the spring abuts against the bottom of the hole, so that the ratchet toggle pin 20 can rebound under the action of the spring after being pressed down.
In this embodiment, when the pressure spring pin 21 is screwed, the pawl spring 22 bears pressure to press the pawl 23 on the pawl 24, when the ratchet toggle pin 20 is pressed, the ratchet 24 rotates clockwise, and when the sawtooth pressing plate 26 moves to a proper position, the ratchet 24 cannot rotate reversely under the action of the pawl 23, so that the sawtooth pressing plate 26 is locked, and the bandage 2 is kept tight at any time; when the length of the bandage 2 needs to be adjusted, the pressure spring pin 21 is unscrewed, the pawl 23 is pulled away from the ratchet wheel, the ratchet wheel poking pin 20 is pulled upwards, the position of the sawtooth pressing plate 26 is adjusted back, and the spring pressure pin 21 is screwed after the adjustment is completed.
In the embodiment, the length of the bandage 2 is adjusted by the locking buckle 3 designed by the ratchet wheel, the pawl and the gear rack, self-locking is realized by the ratchet wheel 24 and the pawl 23, the tightening state of the bandage 2 can be kept constantly, and the wearing comfort is improved.
As shown in fig. 2, the lower end of the thigh support 1 is connected to the upper end of the arc rail 7, and the lower end of the arc rail 7 is connected to the upper end of the shank support 11 via the linear rail 10. The circular arc guide rail 7 includes a first guide rail portion 71 and a first slider portion 72, the first guide rail portion 71 is circular arc-shaped, one end of the first slider portion 72 is disposed in the guide rail of the first guide rail portion 71 to slide, and the other end is provided with a bearing hole.
First guide rail portion 71 is connected with the lower extreme of thigh support 1 one side, and is concrete, and the lower extreme of thigh support 1 one side is equipped with the arc wall, and first guide rail portion 71 passes through the screw and locates in the arc wall, and through the arc wall of thigh support 1, first guide rail portion 71 is spacing to the slip of first slider portion 72, with the rotation angle restriction of first slider portion 72 for thigh support 1 in certain extent.
A bearing 12 is arranged in a bearing hole at the lower end of the first slider part 72, an inner bearing baffle 14 is arranged at the inner side of the bearing hole, and the outer ring of the bearing 12 is fixed in the bearing hole through the inner bearing baffle 14. A baffle supporting pin 9 is arranged on the outer side of the bearing hole, a through hole is formed in the middle of the baffle supporting pin 9, a baffle supporting pin fixing screw 13 is arranged in the through hole, one end of the baffle supporting pin is connected with the baffle supporting pin 9, and the other end of the baffle supporting pin is connected with a linear guide rail connecting seat 15. The cylindrical portion of the linear guide coupling seat 15 is provided in the inner race of the bearing 12, and the shutter support pin fixing screw 13 is coupled in the screw hole of the cylindrical portion. The linear guide connecting seat 15 further includes a connecting portion, the cylindrical portion is disposed on the connecting portion, and the connecting portion is connected to the linear guide 10.
It should be noted that the first slider portion 72 includes an upper portion and a lower portion, the upper portion and the lower portion are connected by a hinge, the upper portion of the first slider portion 72 can rotate within a certain angle range around the center of the lower portion of the first slider portion 72, the upper end of the lower portion of the first slider portion 72 is a Y-shaped structure, the lower end of the upper portion of the first slider portion 72 is limited by the Y-shaped structure, and the structure enables the calf support 11 connected to the circular arc guide 7 to be turned inside out and outside at a certain angle. In this embodiment, the upper portion of the first slider portion 72 slides in cooperation with the first rail portion 71.
In this embodiment, two sides of the bearing 12 are respectively provided with a baffle supporting pin 9 and a bearing inner baffle 14, the cylindrical portion of the linear guide rail connecting seat 15 penetrates through the bearing inner baffle 14 and is arranged in the inner ring of the bearing 12, and the baffle supporting pin 9 and the cylindrical portion are connected through a baffle supporting pin fixing screw 13, so that the circular arc guide rail 7 and the linear guide rail 10 are connected through the linear guide rail connecting seat 15 while the position of the bearing 12 is limited, and the structure is simple and compact.
As shown in fig. 6, the linear guide 10 includes a second guide portion 101 and a second slider portion 102, the second guide portion 101 is vertically disposed and connected to the upper end of the lower leg support 11 by a screw, and the second slider portion 102 is engaged with the second guide portion 101 and slides on the second guide portion 101. The connecting portion of the linear guide connecting seat 15 is fixedly connected with the second slider portion 102.
The knee joint rehabilitation exercise protection device further comprises an elastic connecting piece 8 and a connecting nail, the connecting nail is arranged at the lower end of one side of the thigh support 1 and the upper end of one side of the shank support 11 and is specifically arranged at one side of the connecting arc guide rail 7, and the two ends of the elastic connecting piece 8 are respectively connected with the connecting nail arranged at the lower end of the thigh support 1 and the connecting nail arranged at the upper end of the shank support 11. Preferably, the elastic connection is an elastic cord.
In order to provide the boosting force with different sizes, a plurality of connecting nails are uniformly distributed in the horizontal direction, and the magnitude of the boosting force can be changed by selecting the connecting nails at different positions on the thigh support 1 and the shank support 11 and adjusting the tensioning degree of the elastic connecting piece 8.
It is noted that the middle portion of the elastic link 8 goes around the barrier support pin 9, and specifically, both ends of the spring link 8 are connected with the connection pins of the thigh support 1 and the shank support 11, and the middle portion of the spring link 8 is in contact with the front side of the barrier support pin 9 and receives the tensile force from the elastic link 8. The front side in this embodiment means the knee side.
As another possibility of this embodiment, an elastic connection member 8 is also disposed on the other side of the thigh support 1, a plurality of connection nails horizontally and uniformly distributed are disposed at the lower end of the other side of the thigh support 1, a plurality of connection nails horizontally and uniformly distributed are disposed at the upper end of the other side of the shank support 1, a baffle support pin 9 is further disposed at the upper end of the other side of the shank support 11, the baffle support pin 9 is higher than the connection nails disposed at the same side of the shank support 11, two ends of the elastic connection member 8 are respectively connected with the connection nails, the baffle support pin 9 is bypassed at the middle part, and the assisting force can be changed by selecting the connection nails at different positions on the thigh support 1 and the shank support 11 and adjusting the tensioning degree of the elastic connection member 8. In this embodiment, the elastic connecting members 8 provided at both sides of the protection device provide assistance together.
The lower end of the other side of the thigh support 1 is connected with the upper end of the other side of the shank support 11 through a crank 5, as shown in fig. 7, the lower end of the other side of the thigh support 1 is provided with a groove hole, one end of the crank 5 is arranged in the groove hole, one end of the crank 5 is provided with a joint bearing hole, a joint bearing 16 is arranged inside the crank, and the joint bearing 16 is connected with the lower end of the other side of the thigh support 1 through a joint bearing pin 17.
Considering the limit of the joint bearing pin 17 on the thigh support 1, the joint bearing pin 17 is provided with a clamp spring groove which is positioned at the outer side of the lower end of the thigh support 1, one end of the joint bearing pin 17 penetrates through the lower end of the thigh support 1 and is limited by the outer clamp spring 18 of the bearing, and the other end of the joint bearing pin 17 is limited by the pin head of the joint bearing pin 17.
The upper end of the other side of the shank support 11 is provided with a slotted hole, the other end of the crank 5 is arranged in the slotted hole, the other end of the crank 5 is provided with a joint bearing hole, a joint bearing 16 is arranged in the crank 5, and the joint bearing 16 is connected with the upper end of the other side of the shank support 11 through a joint bearing pin 17.
Considering the limit of the joint bearing pin 17 on the lower leg support 11, the joint bearing pin 17 is provided with a clamp spring groove which is positioned at the outer side of the upper end of the lower leg support 11, one end of the joint bearing pin 17 penetrates through the upper end of the lower leg support 11 and is limited by a bearing outer clamp spring 18, and the other end of the joint bearing pin 17 is limited by a pin head of the joint bearing pin 17.
Considering the limit of the knuckle bearing 16, the knuckle bearing holes at the two ends of the crank 5 are provided with clamp spring grooves, and the clamp springs 19 in the bearing are arranged in the clamp spring grooves in the knuckle bearing holes to limit the axial movement of the knuckle bearing 16.
Shank support 11 is a similar semi-cylindrical structure, and the circular arc that adopts similar semi-cylindrical structure adapts to user's shank, and the both sides of shank support 11 are equipped with the journal stirrup respectively, and the journal stirrup is connected with bandage 2, and specifically, the one end of bandage 2 is passed through rivet and shank support 11 one side's journal stirrup fixed connection, and the other end is connected with the journal stirrup of the opposite side of shank support 11 through adjusting locking mechanism, adjusts locking mechanism and locates on the journal stirrup of shank support 11.
In this embodiment, in order to adapt to the wearing of different users, the length of the binding band 2 is adjusted by the adjusting and locking mechanism, and the adjusting and locking mechanism only needs to adjust the length of the binding band 2.
In order to firmly connect the lower leg support 11 with the user, the upper end and the lower end of the lower leg support 11 are respectively provided with a bandage 2.
In this embodiment, adjust locking mechanism and be locking knot 3, locking knot 3 passes through the fix with rivet on shank support 11, through the tight length of changing bandage 2, matches the shank diameter of wearer.
In order to protect the legs of the user, the knee joint rehabilitation exercise protection device further comprises a thigh protection pad 4 and a shank protection pad 6, wherein the thigh protection pad 4 and the shank protection pad 6 are respectively arranged on the inner side of the lower end of the thigh support 1 and the inner side of the upper end of the shank support 11.
In this embodiment, the thigh support 1 is attached to the thigh through the bandage 2 and the thigh protection pad 4, the shank support 11 is attached to the shank through the bandage 2 and the shank protection pad 6, and the protection pad can buffer pressure, so that the device can be attached to the knee joint better.
The knee joint rehabilitation motion protection device comprises motion angles in three directions: the degree of medial-lateral rotation of the knee in the horizontal plane, the degree of flexion-extension in the sagittal plane, and the degree of varus-lateral rotation in the coronal plane.
Controlling the internal and external rotation motion angle of the horizontal plane of the knee joint rehabilitation motion protection device: the thigh support 1 is connected with the crank 5 through the joint bearing 16 at one side, and as shown in fig. 7, the side connection mode of the device limits the internal and external rotation angle between the thigh support 1 and the shank support 11 within a certain angle by virtue of the motion characteristic of the joint bearing 16; the other side of the thigh support 1 is connected with the arc guide rail 7 through a screw, as shown in fig. 2-5, two ends of the arc guide rail 7 are attached to two structural ends of the thigh support 1, and the first sliding block part 72 is limited to slide in a range of +/-10 degrees around the central axis of the thigh support 1, so that the device can fit the internal and external rotation angles of the knee joint in the horizontal plane.
Controlling the sagittal plane flexion and extension angle of the knee joint rehabilitation exercise protection device: one side of the thigh support 1 is connected with the crank 5 through a joint bearing 16, as shown in fig. 7, the joint bearing 16 does not limit the rotational freedom around the central axis thereof; the other side of the thigh support 1 is connected with the shank support 11 through a bearing 12, the bearing 12 does not limit the rotational freedom degree around the central axis of the bearing, the connection modes of the two sides do not limit the rotational freedom degree of the knee joint in the sagittal plane, the movement of the knee joint in normal gait can be ensured, and the normal flexion and extension freedom degree is not influenced. As shown in fig. 13-14, one end of the elastic connecting member 8 is connected to the connecting nail of the thigh support 1, and the middle is wound to the connecting nail of the shank support 11 through the baffle supporting pin 9, and after the user wears the device, the elastic connecting member 8 provides assistance for the knee joint during the flexion and extension process of the knee joint.
Controlling the coronal plane eversion motion angle of the knee joint rehabilitation motion protection device: one side of the thigh bracket 1 is connected with the crank 5 through the joint bearing 16, as shown in fig. 7, the crank 5 can rotate in a coronal plane through the joint bearing 16, and the rotation range of the deflection angle of the joint bearing 16 is +/-6 degrees; the thigh support 1 is connected with the shank support 11 through a linear guide 10 on the other side, in the sagittal plane, the second slide block part 102 can slide along the second guide part 101, the upper part and the lower part of the first slide block part 72 are hinged, the length of the linear guide 10 is constant, the sliding range of the second slide block part 102 is constant, and the inward-outward turning angle of the side in the sagittal plane is constant. The device can limit the inner and outer turning angles of the knee joint in the sagittal plane through the joint bearing 16 and the linear guide rail 10, and plays a role in protecting the knee joint, as shown in figures 15-16.
Example 2
The invention discloses a knee joint rehabilitation exercise protection method, which adopts the knee joint rehabilitation exercise protection device of the embodiment 1, and comprises the following steps:
the user dresses protector, adjusts the length of bandage 2 and elastic connection spare 8's tension: specifically, the user wears the protector, and the thigh and the shank of the user are attached through the thigh bandage 2 and the shank bandage 2, the knee joint is attached through the thigh protective pad 4 and the shank protective pad 6, and the length of the bandages is adjusted through the locking buckle 3. The user adjusts the tension of the elastic connecting piece 8 to a proper size by adjusting the positions of the connecting rings at the two ends of the elastic connecting piece 8, the connecting nails on the thigh support 1 and the connecting nails on the shank support 11.
The crank 5 follows the internal and external rotation of the inner side of the knee joint, and the arc guide rail 7 follows the internal and external rotation of the outer side of the knee joint: specifically, the user finishes wearing after the adjustment is in place, in the normal gait of the walking of the patient, the joint bearing 16 is connected with the crank 5 in a matched mode, the crank 5 has a certain motion angle in the horizontal plane and can follow the internal and external rotation of the inner side of the knee joint, the arc guide rail 7 can follow the internal and external rotation of the outer side of the knee joint, the internal and external rotation angle of the inner and external sides of the knee joint can be controlled within a certain range through the device, and the injury of the knee joint in the internal and external rotation direction is prevented.
The protector follows the knee joint to move in the sagittal plane, and the elastic connecting piece 8 provides the assistance force, and the protector follows the knee joint to move in the coronal plane in an eversion way. Specifically, through the matching connection of the joint bearing 16 and the crank 5 and the matching connection of the linear guide rail 10 and the bearing 12, the device has a certain motion angle in the sagittal plane and can follow the motion of the knee joint in the sagittal plane, and the elastic connecting piece 8 can provide assistance for the motion of the knee joint and improve the stress condition of the knee joint; through the matching connection of the joint bearing 16 and the crank 5, the up-and-down movement of the upper slide block and the guide rail of the linear guide rail 10 and the hinging of the upper part and the lower part of the first slide block part 72, the device has a certain movement angle in the coronal plane, can be everted along with the knee joint within a certain range, and protects the movement of the knee joint in the coronal plane.
According to the knee joint rehabilitation movement protection device, the device can do internal and external rotation movement on the horizontal plane along with the knee by utilizing the sliding of the arc guide rail 7 and the joint rotation of the joint bearing 16, the internal and external rotation angles of the knee can be limited by the limited guide rail stroke and the limited movement angle of the joint bearing 16, the movement angle of the knee is not more than 40 degrees, and the stability of the knee joint in the internal and external rotation directions is ensured; the connection and matching of the bearing 12 and the linear guide rail 7 are utilized to reduce the motion resistance of the device to the human body, the elastic connecting piece 8 is utilized to provide assistance for the flexion and extension of the knee joint, the stress condition of the knee joint is improved, and the influence of the device on the normal gait of the human body in the sagittal plane is reduced; the knuckle bearing 16 and the crank 5 are used for following the inward and outward turning motion of the knee joint in the coronal plane, the limited angle of the joint rotation of the knuckle bearing 16 and the limited stroke of the linear guide rail 10 are used for limiting the inward and outward turning angle of the device, so that the inward and outward turning angle is controlled within 10 degrees, and the limitation on the inward and outward turning angle of the knee joint is realized; utilize the locking of ratchet pawl and rack and pinion design to detain 3 adjustment bandage length, realize the auto-lock through the ratchet pawl, can keep the state of tightening of bandage constantly, improve and dress the travelling comfort.
The invention utilizes the arc guide rail to follow the internal and external rotation movement of the knee on the horizontal plane and limits the external rotation angle of the knee through the limited length of the guide rail; the bearing and the linear guide rail are utilized to follow the flexion and extension movement of the knee in the sagittal plane, so that the normal flexion and extension freedom degree of the knee joint of the human body is not influenced; the knuckle bearing and the curved bar are used for following the inward and outward turning motion of the knee joint in the coronal plane, and the inward and outward turning angle of the knee joint is limited by the limited stroke of the linear guide rail and the limited rotation angle of the knuckle bearing; the elastic connecting piece is used for providing assistance for the knee joint, so that the stress condition of the knee joint can be improved; the locking buckle designed by the ratchet wheel, the pawl and the gear rack is utilized to adjust the length of the bandage, self-locking can be realized, the tightening state of the bandage is kept, and the wearing comfort is improved.
The knee joint protection device can ensure that the knee moves in a normal range, limit the angle ranges of internal and external rotation and internal and external rotation, provide certain assistance for the knee joint, play a role in protecting the knee under the condition of not influencing the normal movement of the knee joint, and provide a safe and good recovery environment for patients with knee osteoarthritis; the problem of current bandage product influence knee joint blood circulation is solved, can guide the knee joint to move at normal reasonable within range, can accelerate the recovered process of knee joint.
While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
1. The utility model provides a knee joint rehabilitation motion protector, its characterized in that, includes thigh support (1), crank (5), circular arc guide (7), linear guide (10) and shank support (11), one side lower extreme of thigh support (1) connects gradually circular arc guide (7) linear guide (10) with one side upper end of shank support (11), the opposite side lower extreme of thigh support (1) passes through crank (5) with the opposite side upper end of shank support (11) is connected.
2. The knee joint rehabilitation exercise protection device according to claim 1, wherein the lower end of one side of the thigh support (1) is connected with the upper end of the arc guide rail (7), and the lower end of the arc guide rail (7) is connected with the upper end of the shank support (11) through the linear guide (10).
3. The knee joint rehabilitation exercise protection device according to claim 2, wherein the arc guide rail (7) comprises a first guide rail part (71) and a first sliding block part (72), the first guide rail part (71) is arc-shaped and is arranged in an arc-shaped groove formed in the lower end of one side of the thigh support (1), one end of the first sliding block part (72) is arranged in the guide rail of the first guide rail part (71) to slide, and the other end of the first sliding block part is provided with a bearing hole.
4. The knee joint rehabilitation exercise protection device according to claim 3, wherein a bearing (12) is arranged in the bearing hole, and a baffle supporting pin (9) and a bearing inner baffle (14) are respectively arranged on two sides of the bearing (12).
5. The knee joint rehabilitation movement protection device according to claim 4, further comprising a linear guide rail connecting seat (15), wherein one end of the linear guide rail connecting seat (15) penetrates through the bearing inner baffle (14) and the inner ring of the bearing (12) in sequence to be connected with the baffle supporting pin (9), and the other end of the linear guide rail connecting seat is connected with the linear guide rail (10).
6. The knee joint rehabilitation exercise protection device according to claim 5, wherein the linear guide (10) comprises a second guide portion (101) and a second slider portion (102), the second guide portion (101) is connected with one side upper end of the lower leg support (11), and the second slider portion (102) is connected with the linear guide connecting seat (15).
7. The knee rehabilitation motion protection device according to claim 1, characterized in that when the user wears the knee rehabilitation motion protection device in a standing state, the circular arc guide (7) is in a horizontal state, and the crank (5) and the linear guide (10) are in a vertical state.
8. The knee joint rehabilitation exercise protection device according to claim 1, wherein the lower end of the other side of the thigh support (1) and the upper end of the other side of the shank support (11) are provided with slotted holes, the two ends of the crank (5) are arranged in the slotted holes and provided with joint bearing holes, and joint bearings (16) are arranged in the joint bearing holes.
9. The knee joint rehabilitation sport protection device according to claim 1, characterized in that said thigh support (1) and said shank support (11) are further provided with a strap (2).
10. A knee joint rehabilitation exercise protection method, characterized in that the knee joint rehabilitation exercise protection device of claims 1-9 is adopted, and the steps comprise:
the user wears the knee joint rehabilitation exercise protection device and adjusts the length of the binding band (2) and the tension of the elastic connecting piece (8); the crank (5) follows the internal and external rotation of the inner side of the knee joint, and the arc guide rail (7) follows the internal and external rotation of the outer side of the knee joint; the knee joint rehabilitation motion protection device moves in a sagittal plane along with the knee joint, the elastic connecting piece (8) provides power, and the knee joint rehabilitation motion protection device moves outwards in a coronal plane along with the knee joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110699634.0A CN115501079A (en) | 2021-06-23 | 2021-06-23 | Knee joint rehabilitation exercise protection device and protection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110699634.0A CN115501079A (en) | 2021-06-23 | 2021-06-23 | Knee joint rehabilitation exercise protection device and protection method |
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| CN115501079A true CN115501079A (en) | 2022-12-23 |
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| CN202110699634.0A Pending CN115501079A (en) | 2021-06-23 | 2021-06-23 | Knee joint rehabilitation exercise protection device and protection method |
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| CN1326331A (en) * | 1998-09-25 | 2001-12-12 | 坎普斯堪的纳维亚股份公司 | Knee brace with sagittal adjustment |
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| CN110393651A (en) * | 2019-07-23 | 2019-11-01 | 公安部第一研究所 | One kind having apery kneed knee joint assistance exoskeleton robot |
| US20210315766A1 (en) * | 2018-10-18 | 2021-10-14 | Suncall Corporation | Gait motion assisting apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326331A (en) * | 1998-09-25 | 2001-12-12 | 坎普斯堪的纳维亚股份公司 | Knee brace with sagittal adjustment |
| US20040002674A1 (en) * | 2002-06-28 | 2004-01-01 | Generation Ii Usa, Incorporated | Anatomically designed orthopedic knee brace |
| CN103932870A (en) * | 2014-05-04 | 2014-07-23 | 浙江大学 | Lower limb rehabilitation training exoskeleton with bionics design |
| CN205831797U (en) * | 2016-06-16 | 2016-12-28 | 华中科技大学 | A kind of wearable lower limb gait Intelligent Measurement running gear |
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