CN111529167A - Ankle bone reduction fixing device and method - Google Patents
Ankle bone reduction fixing device and method Download PDFInfo
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- CN111529167A CN111529167A CN202010367189.3A CN202010367189A CN111529167A CN 111529167 A CN111529167 A CN 111529167A CN 202010367189 A CN202010367189 A CN 202010367189A CN 111529167 A CN111529167 A CN 111529167A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000009467 reduction Effects 0.000 title claims description 40
- 210000004233 talus Anatomy 0.000 title claims description 26
- 210000002683 foot Anatomy 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 238000002591 computed tomography Methods 0.000 claims description 3
- 238000003745 diagnosis Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims 4
- 241001330002 Bambuseae Species 0.000 claims 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 4
- 239000011425 bamboo Substances 0.000 claims 4
- 210000001137 tarsal bone Anatomy 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 8
- 206010024453 Ligament sprain Diseases 0.000 description 7
- 230000000399 orthopedic effect Effects 0.000 description 7
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000379 polypropylene carbonate Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
- A61F5/05—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for immobilising
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
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- Theoretical Computer Science (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nursing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- Veterinary Medicine (AREA)
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention provides a device and a method for resetting and fixing ankle bones, the device comprises an L-shaped box body, a boot-shaped channel formed by communicating a vertical boot cylinder part and a horizontal foot placing part is arranged in the L-shaped box body, the upper end and the left side of the vertical boot cylinder part are both provided with openings, a sealing pressure plate is detachably connected to the left opening of the vertical boot cylinder part, a plurality of annular locking air bags with gaps are arranged in the vertical boot cylinder part, a plurality of upper resetting expansion parts and lower resetting expansion parts are respectively distributed at the top and the bottom of the horizontal foot placing part, a plurality of areas of the instep can be downwards compressed after the upper resetting expansion parts are extended to different degrees, a plurality of areas of the sole can be upwards pressed after the lower resetting expansion parts are extended to different degrees, and the left part and the right part of the horizontal foot placing part are respectively provided with a left limiting expansion part and a right limiting expansion part which can prevent the foot from moving left and. The invention has the advantage that the automatic accurate resetting and fixing can be carried out on the sprained and dislocated ankle bones.
Description
Technical Field
The invention belongs to the field of medical auxiliary instruments for orthopedics, and particularly relates to a ankle bone reduction fixing device and method
Background
The orthopedic ankle sprain dislocation is common in cases, which is usually caused by outdoor strenuous exercise, a dislocated bone needs to be corrected by experienced professional doctors in a hospital once the orthopedic ankle sprain dislocation occurs, the orthopedic ankle sprain dislocation is effectively fixed by using a bandage after the correction is completed, and the orthopedic ankle sprain dislocation can be cured once the orthopedic ankle sprain dislocation is cured. However, the requirement on the professional experience of a doctor is high, the doctor is required to manually and accurately reposition and fix the dislocated bone, excessive disturbance cannot be caused in the fixing process, and otherwise, secondary dislocation is easy to occur to cause difficult healing or poor healing effect.
Disclosure of Invention
The invention provides a device and a method for resetting and fixing ankle bones, aiming at overcoming the defects that the ankle bones in the prior art are basically and completely operated by the personal experience of doctors during resetting and slight secondary dislocation is easy to occur during bandage winding.
The technical scheme for solving the technical problems is as follows: a reduction and fixation device for ankle bones comprises an L-shaped box body, wherein a boot-shaped channel formed by communicating a vertical boot barrel part and a horizontal foot placing part is arranged in the L-shaped box body, the upper end and the left side of the vertical boot cylinder part are both provided with openings, the opening at the left side of the vertical boot cylinder part is detachably connected with a sealing pressure plate, a plurality of annular locking air bags with gaps are arranged in the vertical boot leg part, a plurality of upper reset expansion pieces and lower reset expansion pieces are respectively distributed at the top and the bottom of the horizontal foot part, a plurality of areas of the instep can be pressed downwards after the upper reset expansion pieces are extended to different degrees, a plurality of areas of the sole can be pressed upwards after the lower reset expansion pieces are extended to different degrees, the left part and the right part of the horizontal foot placing part are respectively provided with a left limit expansion piece and a right limit expansion piece which prevent the feet from moving left and right in the horizontal foot placing part.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, the left side of the sealing pressure plate is hinged with the left side of the rear side face of the L-shaped box body, and the right side of the sealing pressure plate is detachably connected with the right side of the rear side face of the L-shaped box body through a plurality of hand-screwed bolts.
Adopt above-mentioned further scheme's beneficial effect be, make things convenient for opening and locking of seal clamp plate to fix.
Further, an arc-shaped transition surface is arranged on the upper side of the communication position of the vertical boot cylinder part and the horizontal foot placing part in the L-shaped box body, and a first limiting air bag is arranged on the arc-shaped transition surface.
Furthermore, a second limiting air bag used for tightly abutting against the heel is arranged at the lower part of the inner side surface of the sealing pressure plate.
Adopt the beneficial effect of above-mentioned further scheme to be, first and the spacing gasbag of second all can be better make shank and foot obtain better fixed in boot form passageway, avoid the foot to shift in boot form passageway.
Furthermore, the front part of the horizontally arranged foot part is also provided with a front limit expansion piece.
Adopt the beneficial effect of above-mentioned further scheme to be, make the device's adaptability and to the fixed effect of foot better, the foot that adapts to different sizes is fixed.
Furthermore, the left limit expansion piece, the right limit expansion piece and the front limit expansion piece are the same in structure and respectively composed of an electric push rod and a limit plate connected to the expansion end of the electric push rod.
Adopt above-mentioned further scheme's beneficial effect be, but electric control, laborsaving and automatic effectual.
Further, the upper reset telescopic piece and the lower reset telescopic piece are the same in structure and are linear servo push rods respectively.
Adopt above-mentioned further scheme's beneficial effect is, adopt linear type servo push rod, its small in size and ability automated control, the extension degree controllability is good, and precision is high.
Furthermore, the upper reset telescopic piece and the lower reset telescopic piece are arranged in a plurality of rows in the front-back direction, and the number of the upper reset telescopic piece and the lower reset telescopic piece corresponding to each row is more than 2.
Adopt above-mentioned further scheme's beneficial effect be convenient for press or push up the different positions of foot, reinforcing reset ability and effect.
Further, the L-shaped box body is made of hard plastic or stainless steel.
The beneficial effect who adopts above-mentioned further scheme is, be convenient for install each gasbag, the extensible member that resets and spacing extensible member.
In addition, the invention also provides a method for resetting and fixing the ankle bone by using the device, which comprises the following steps: firstly, CT scanning is carried out on the ankle bone of a patient to obtain all original data required by three-dimensional reconstruction of the ankle bone of the patient, the original data is processed into a first three-dimensional image for diagnosis of a doctor by a computer, meanwhile, three-dimensional software is utilized to construct a second three-dimensional image of the device, then, the first three-dimensional image and the second three-dimensional image are matched and assembled by the three-dimensional software, the accuracy of the stretching of each upper reduction telescopic piece and each lower reduction telescopic piece when the ankle sprain dislocation is completely reduced is simulated, the accuracy of the stretching of the left limit telescopic piece and the right limit telescopic piece at the moment is also determined, corresponding data information is recorded, then, a sealing pressing plate is opened, the lower part of the shank and the foot of the patient are stretched into a boot-shaped channel of the device, the sealing pressing plate is fixed, then, the left limit telescopic piece and the right limit telescopic piece are stretched to the accuracy, and then, an annular, and finally, gradually adjusting each upper reduction gentle shrink piece and each lower reduction gentle shrink piece according to the recorded data information to complete ankle bone reduction and fixation.
Compared with the prior art, the invention has the beneficial effects that:
the automatic resetting and fixing device can automatically and accurately reset and fix the sprained and dislocated ankle bones without depending on personal experience and manual operation of orthopedic doctors or using bandages, and has the advantages of simple use method, high efficiency, good applicability, large treatment capacity and better practical value.
Drawings
FIG. 1 is a schematic front view of an ankle reduction fixation device provided in accordance with the present invention;
fig. 2 is a schematic top view of the apparatus of fig. 1.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a vertical boot tube portion; 2. horizontally arranging a foot part; 3. sealing the pressing plate; 4. an annular locking air bag; 5. an upper reset telescopic part; 6. a lower reset telescopic piece; 7. a left limit expansion piece; 8. a right limit expansion piece; 9. screwing the bolt by hand; 10. a first limit airbag; 11. a second limiting air bag; 12. front limit expansion pieces.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, if terms indicating orientation such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., are used, they indicate orientation or positional relationship based on that shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 and 2, the present invention provides an ankle bone reduction fixture, which includes an L-shaped case, a boot-shaped channel formed by communicating a vertical boot cylinder part 1 and a horizontal foot placing part 2 is arranged in the L-shaped box body, the upper end and the left side of the vertical boot cylinder part 1 are both provided with openings, the opening at the left side of the vertical boot cylinder part 1 is detachably connected with a sealing pressure plate 3, a plurality of annular locking air bags 4 with gaps are arranged in the vertical boot tube part 1, a plurality of upper resetting expansion pieces 5 and lower resetting expansion pieces 6 are respectively distributed at the top and the bottom of the horizontal foot part 2, a plurality of areas of the instep can be pressed downwards after the upper resetting expansion pieces 5 are extended to different degrees, a plurality of areas of the sole can be pressed upwards after the lower resetting expansion pieces 6 are extended to different degrees, the left part and the right part of the horizontal foot placing part 2 are also respectively provided with a left limit expansion piece 7 and a right limit expansion piece 8 which prevent the feet from moving left and right in the horizontal foot placing part 2.
It should be noted that the upper end and the left side opening of the vertical boot tube part are convenient for the patient to wear and use the device, and when in use, the foot is translated rightwards from the left side of the device and extends into the boot-shaped channel of the L-shaped box body; the annular locking air bags are preferably arranged in an upper, middle and lower three mode, and each annular locking air bag is communicated with the inflation and deflation device. In addition, the left side, the right side and the top of the L-shaped box body corresponding to the horizontally arranged feet can be provided with a plurality of ventilation and observation holes, so that the feet are prevented from being covered, and the observation of whether adverse conditions (such as over-compression of blood vessels and the like) occur after the feet are preliminarily fixed is facilitated.
In one embodiment of the present invention, the left side of the sealing press plate 3 is hinged to the left side of the rear side of the L-shaped box, and the right side of the sealing press plate 3 is detachably connected to the right side of the rear side of the L-shaped box by a plurality of hand-screwed bolts 9.
It should be noted that the detachable connection between the sealing pressure plate and the L-shaped box body is not limited to the above one, and may be a connection between the left side and the right side by hand-screwed bolts, or a connection between one side of the sealing pressure plate and the other side of the sealing pressure plate, or a locking bolt structure, etc. as may occur to those skilled in the art, any detachable.
In one embodiment of the invention, an arc-shaped transition surface is arranged on the upper side of the communication part of the vertical boot-tube part 1 and the horizontal foot-placing part 2 in the L-shaped box body, and a first limit air bag 10 is arranged at the arc-shaped transition surface.
The first limit air bag is preferably in an ellipsoid shape, and after being inflated, the first limit air bag can obliquely press the physiological bending part at the upper side of the joint of the foot and the lower leg backwards and downwards so as to enhance the fixation of the foot and the lower leg in the boot-shaped channel.
In an embodiment of the present invention, a second limiting airbag 11 for tightly supporting the heel is disposed at the lower portion of the inner side surface of the sealing pressing plate 3.
In one embodiment of the invention, the front part of the horizontal foot part 2 is also provided with a front limit expansion piece 12.
In an embodiment of the present invention, the left limit expansion piece 7, the right limit expansion piece 8 and the front limit expansion piece 12 have the same structure, and each of the left limit expansion piece, the right limit expansion piece and the front limit expansion piece is composed of an electric push rod and a limit plate connected to the expansion end of the electric push rod.
In one embodiment of the present invention, the upper and lower reset telescopes 5, 6 are identical in structure and are each a linear servo rod.
It should be noted that the linear servo rod used in the present invention can refer to the model RM-SLA-08 manufactured by the Intelligent science and technology Limited.
In one embodiment of the present invention, the upper and lower reset telescopic parts 5 and 6 are arranged in a plurality of rows in the front-rear direction, and the number of the upper and lower reset telescopic parts 5 and 6 corresponding to each row is more than 2.
In one embodiment of the invention, the L-shaped box is made of rigid plastic or stainless steel.
Preferably, the rigid plastic is polypropylene or polycarbonate.
In addition, the invention also provides a method for resetting and fixing the ankle bone by using the device, which comprises the following steps: firstly, CT scanning is carried out on the ankle bone of a patient to obtain all original data required by three-dimensional reconstruction of the ankle bone of the patient, the original data is processed into a first three-dimensional image for diagnosis of a doctor by a computer, meanwhile, three-dimensional software is utilized to construct a second three-dimensional image of the device, then, the first three-dimensional image and the second three-dimensional image are matched and assembled by the three-dimensional software, the accuracy of the stretching of each upper reduction telescopic part and each lower reduction telescopic part when the ankle sprain dislocation is completely reduced is simulated, the accuracy of the stretching of the left limit telescopic part 7 and the right limit telescopic part 8 at the moment is also determined, corresponding data information is recorded, then, the sealing pressing plate 3 is opened, the lower part of the shank and the foot of the patient are stretched into the boot-shaped channel of the device, the sealing pressing plate 3 is fixed, then, the left limit telescopic part 7 and the right limit telescopic part 8 are stretched to, and finally, gradually adjusting each upper reduction gentle-necked piece and each lower reduction gentle-necked piece according to the recorded data information to complete the reduction and fixation of the ankle bones.
It should be noted that the above-mentioned reduction fixation method does not exclude the manual reduction operation of the doctor with abundant experience, and after the doctor has performed the manual preliminary reduction on the dislocation of the ankle bone of the patient, the foot of the patient can be slowly inserted into the device of the present invention without bandage fixation, and then the accurate extension degree data of the upper and lower reduction extension pieces recorded in the above-mentioned step is used to perform the extension adjustment on the upper and lower reduction extension pieces, so as to complete the final accurate reduction fixation. The upper and lower reset telescopic parts, the left and right limit telescopic parts can be electrically connected with a controller, and the controller is in signal connection with a computer provided with three-dimensional software.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an ankle bone fixing device that resets, its characterized in that, includes L shape box body, the boots form passageway that forms by vertical boots section of thick bamboo portion (1) and horizontal foot placement portion (2) intercommunication is equipped with in the L shape box body, the upper end and the equal opening in left side of vertical boots section of thick bamboo portion (1), the left side opening part of vertical boots section of thick bamboo portion (1) can be dismantled and be connected with seal pressing plate (3), be equipped with a plurality of annular locking gasbag (4) of taking the breach in vertical boots section of thick bamboo portion (1), the top and the bottom of horizontal foot placement portion (2) distribute respectively have a plurality of telescoping piece (5) that reset on and telescoping piece (6) that reset down, a plurality of regions of sole can upwards jack up after telescoping piece (6) different degrees extension that reset down, the left part and the right part of horizontal foot placement portion (2) still are equipped with respectively and prevent that the foot is in move about in horizontal foot placement portion (2) move about A movable left limit expansion piece (7) and a right limit expansion piece (8).
2. The ankle bone reduction and fixation device according to claim 1, wherein the left side of the sealing pressure plate (3) is hinged to the left side of the rear side of the L-shaped box body, and the right side of the sealing pressure plate (3) is detachably connected to the right side of the rear side of the L-shaped box body through a plurality of hand-screwed bolts (9).
3. The ankle bone reduction and fixation device according to claim 1, wherein an arc-shaped transition surface is arranged on the upper side of the connection part of the vertical boot part (1) and the horizontal foot part (2) in the L-shaped box body, and a first limit air bag (10) is arranged on the arc-shaped transition surface.
4. The ankle bone reduction and fixation device according to claim 3, wherein a second limit air bag (11) for tightly supporting the heel is arranged at the lower part of the inner side surface of the sealing pressure plate (3).
5. The ankle bone reduction and fixation device according to claim 1, wherein the front part of the horizontal foot part (2) is further provided with a front limit expansion piece (12).
6. The ankle bone reduction and fixation device according to claim 5, wherein the left limit expansion piece (7), the right limit expansion piece (8) and the front limit expansion piece (12) have the same structure and are respectively composed of an electric push rod and a limit plate connected to the expansion end of the electric push rod.
7. The ankle bone reduction fixture according to any one of claims 1 to 6, wherein the upper reduction telescope (5) and the lower reduction telescope (6) are identical in structure and are each a linear servo rod.
8. The ankle bone reduction and fixation device according to claim 7, wherein the upper reduction expansion part (5) and the lower reduction expansion part (6) are arranged in a plurality of rows in the front-back direction, and the number of the upper reduction expansion part (5) and the lower reduction expansion part (6) in each row is more than 2.
9. The ankle bone reduction fixation device of claim 7, wherein the L-shaped box is made of rigid plastic or stainless steel.
10. A method of ankle bone reduction fixation using the device of any one of claims 1 to 9, comprising the steps of: firstly, CT scanning is carried out on the ankle bone of a patient to obtain all original data required by three-dimensional reconstruction of the ankle bone of the patient, the original data are processed into a first three-dimensional image for diagnosis of a doctor by a computer, meanwhile, three-dimensional software is used for constructing a second three-dimensional image of the device according to any one of claims 1 to 9, then, the first three-dimensional image and the second three-dimensional image are matched and assembled by the three-dimensional software, the accurate degree of extension of each upper reset telescopic part (5) and each lower reset telescopic part (6) when the dislocation part of the ankle bone is completely reset is simulated, the accurate degree of extension of the left limit telescopic part (7) and the right limit telescopic part (8) at the moment is also determined, corresponding data information is recorded, then, the sealing pressing plate (3) is opened, the lower part of the shank and the foot of the patient are extended into a boot-shaped channel of the device, the sealing pressing plate (3) is fixed, and then, the left limit telescopic part (7, and then the annular locking air bag (4) is inflated and locked, and finally the upper reduction gentleman piece and the lower reduction gentleman piece are gradually adjusted according to the recorded data information to complete the ankle bone reduction and fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010367189.3A CN111529167A (en) | 2020-04-30 | 2020-04-30 | Ankle bone reduction fixing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010367189.3A CN111529167A (en) | 2020-04-30 | 2020-04-30 | Ankle bone reduction fixing device and method |
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| Publication Number | Publication Date |
|---|---|
| CN111529167A true CN111529167A (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010367189.3A Pending CN111529167A (en) | 2020-04-30 | 2020-04-30 | Ankle bone reduction fixing device and method |
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| CN110141790A (en) * | 2019-05-23 | 2019-08-20 | 青岛伍龙生物科技有限公司 | A kind of touch acupoint of foot pulse therapy boots |
| CN209884687U (en) * | 2019-03-21 | 2020-01-03 | 宿州学院 | Intelligent rehabilitation robot for foot ankles |
| CN111000329A (en) * | 2019-11-29 | 2020-04-14 | 上海足适智能科技有限公司 | Three-dimensional self-adaptive positioning device and using method thereof |
| CN212369136U (en) * | 2020-04-30 | 2021-01-19 | 西南医科大学附属中医医院 | Ankle bone resetting and fixing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070100264A1 (en) * | 2005-10-27 | 2007-05-03 | Linda Hanson | Cold/heat treatment boot for ankles and lower legs |
| CN201996697U (en) * | 2010-12-17 | 2011-10-05 | 中国人民解放军第三军医大学第一附属医院 | Protective boot |
| CN204839940U (en) * | 2015-08-19 | 2015-12-09 | 胡丽琴 | Dedicated medical foot barrel casing of orthopedics |
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| CN109892743A (en) * | 2019-03-15 | 2019-06-18 | 温州职业技术学院 | A kind of inside is equipped with the leather boots of fixed mechanism |
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