CN211602754U - Ankle biomechanics loading device - Google Patents
Ankle biomechanics loading device Download PDFInfo
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- CN211602754U CN211602754U CN201922080250.1U CN201922080250U CN211602754U CN 211602754 U CN211602754 U CN 211602754U CN 201922080250 U CN201922080250 U CN 201922080250U CN 211602754 U CN211602754 U CN 211602754U
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Abstract
The utility model provides an ankle biomechanics loading device, which comprises a foot plate, a longitudinal axis bracket, a transverse axis bracket, a bottom bracket, a bottom connector, a top connector and a vertical axis slide bar; the longitudinal shaft bracket is fixedly connected with the transverse shaft bracket; the front end and the rear end of the foot plate are movably connected with the end of the longitudinal shaft bracket, and move along the direction of the transverse shaft and rotate around the longitudinal shaft; the two ends of the cross shaft bracket are movably connected with the bottom bracket and swing along the direction of the longitudinal shaft; the bottom support bracket is movably connected with the bottom connector and rotates around the transverse shaft, and the base connector rotates around the vertical shaft; the top connector moves up and down along the vertical shaft slide bar and is used for fixing the foot specimen and adjusting the vertical pressure. The utility model discloses a six degree of freedom's of three-dimensional adjustment of sole, six kinds of states of simulation ankle joint plantarflexion, dorsal extension, enstrophe, valgus, internal rotation and external rotation make the result of simulation more be close to the true physiological status of ankle in the motion process.
Description
Technical Field
The utility model belongs to the technical field of medical science experimental apparatus, concretely relates to ankle biomechanics loading device.
Background
The ankle joint is an important weight bearing joint of a human body, and with the improvement of social groups on the participation degree of sports, the damage mechanism and treatment selection of various ankle joints including ankle joint fracture and surrounding stable structures thereof have great disputes so far. Biomechanical experiments are reliable means for exploring various ankle joint injury mechanisms and comparing different operation methods at the present stage. The ankle joint has high matching degree, the motion direction and the stress load change are complex, the ankle joint has the postures of plantarflexion, dorsal extension, varus and valgus, internal and external rotation, pronation, supination and the like in the normal motion process, the ankle joint is longer in the composite state of various postures, and the stress born by each specific posture is different. Most of the existing mechanical loading devices can only realize axial stress loading. Therefore, the previous biomechanical experiment can not accurately simulate the pathophysiological state of the ankle joint; the reliability of the result is not high. Further, some studies may mislead the diagnosis and treatment of ankle joint injuries, and cause misdiagnosis, missed diagnosis, improper treatment, over-treatment, etc.
In view of the above, there is a significant need for a reliable ankle loading apparatus that achieves different ankle postures during exercise. More truly simulating the pathophysiology process of the ankle joint; better researches the mechanism of ankle joint injury and selects better surgical treatment method.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a loading device for the biomechanics of the ankle joint, which can effectively simulate the stress condition of the ankle joint in the real motion process.
In order to achieve the above purpose, the utility model provides an ankle biomechanics loading device, which comprises a foot plate, a longitudinal axis bracket, a transverse axis bracket, a collet bracket, a bottom connector, a top connector and a vertical axis slide bar; the longitudinal shaft bracket is fixedly connected with the transverse shaft bracket; the front end and the rear end of the foot plate are movably connected with the end of the longitudinal shaft bracket, and move along the direction of the transverse shaft and rotate around the longitudinal shaft; the two ends of the cross shaft bracket are movably connected with the bottom bracket and swing along the direction of the longitudinal shaft; the bottom support bracket is movably connected with the bottom connector and rotates around the transverse shaft, and the bottom connector rotates around the vertical shaft; the top connector moves up and down along the vertical shaft slide bar and is used for fixing the foot specimen and adjusting the vertical pressure.
Furthermore, the end head of the longitudinal shaft bracket is provided with a transverse chuck, one end of the transverse chuck is movably connected with the end head of the longitudinal shaft bracket, and the other end of the transverse chuck is fixedly clamped at different positions of the foot plate.
Furthermore, the transverse chuck is provided with a plurality of screw holes, and the transverse chuck is fixed and clamped on the foot plate through the matching of the screw holes and the screws.
Furthermore, the end of the longitudinal axis support is provided with a plurality of longitudinal axis rotation scale holes which are arranged to form a plurality of circular arcs, and the connecting head of the foot plate is inserted into the longitudinal axis rotation scale holes so as to adjust the rotating angle of the foot plate around the longitudinal axis.
Furthermore, the longitudinal axis bracket and the transverse axis bracket are vertically crossed, and the crossed parts are fixedly connected through metal screws.
Furthermore, the foot plate is provided with a plurality of uniformly distributed foot fixing holes, and the foot fixing holes are matched with the screws to fix the foot specimen on the foot plate.
Furthermore, a plurality of longitudinally moving scale holes which are uniformly distributed and are arc-shaped are arranged at the two ends of the cross shaft bracket and correspond to the longitudinally moving scale holes on the bottom bracket so as to adjust the rotating angle of the foot plate around the cross shaft.
Furthermore, the bottom connector and the top connector are both conical surfaces, and the bottom connector is provided with a longitudinal groove.
Further, the vertical type electric kettle further comprises a bottom support connecting piece, the upper portion of the bottom support connecting piece is fixedly connected with the bottom support bracket, and the lower portion of the bottom support connecting piece is movably connected in the longitudinal groove and swings back and forth.
Furthermore, the device also comprises a base, and the bottom connector and the vertical shaft sliding rod are fixed on the base.
Compared with the prior art, the utility model provides an ankle biomechanics loading device can more effectual simulation ankle joint in the atress situation of true motion in-process. The sole of the ankle specimen is fixedly connected with the foot plate, the foot plate is movably connected with the longitudinal shaft bracket, the foot plate is enabled to move along the direction of the transverse shaft and rotate around the longitudinal shaft through adjustment of the longitudinal shaft bracket, adjustment of two degrees of freedom of the foot plate is achieved, and inversion and eversion of the ankle can be simulated. The cross shaft support swings on the bottom support, the bottom support rotates around the cross shaft on the bottom connecting head, the foot plate is adjusted in the degree of freedom of rotation of the cross shaft, and plantarflexion and dorsiflexion of the ankle can be simulated. The bottom connector rotates around the vertical shaft, so that the foot plate realizes the adjustment of the degree of freedom of the rotation of the vertical shaft, and the outward rotation and the inward rotation of the ankle can be simulated. The top connector is connected with the upper portion of foot sample, and the top connector moves the adjustment position on vertical axis slide bar, realizes the biomechanics loading to foot sample ankle, has simulated the atress situation of ankle in the motion situation. The utility model discloses can carry out three-dimensional six degrees of freedom's mechanical action to the foot sample, realize the compound posture of ankle. Through the utility model discloses can simulate the various atress situations of ankle, make the result that detects the observation more be close to the true physiology situation of ankle in the motion process.
Drawings
FIG. 1 is a front view of an ankle biomechanical loading device in an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of an ankle biomechanical loading mechanism in an embodiment of the present invention;
FIG. 3 is a top view of a longitudinal axis support and foot plate in an embodiment of the invention;
fig. 4 is a top view of a longitudinal axis support and a transverse axis support in an embodiment of the invention;
FIG. 5 is a side view of the bottom bracket support and cross shaft support in an embodiment of the invention;
fig. 6 is a side view of a longitudinal shaft support in an embodiment of the invention;
fig. 7 is a top view of the bottom connector in an embodiment of the present invention;
fig. 8 is a bottom view of the shoe support in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model provides an ankle biomechanics loading device, as shown in fig. 1 and 2, which comprises a foot plate 1, a longitudinal shaft bracket 2, a transverse shaft bracket 3, a bottom bracket 4, a bottom connector 5, a top connector 6 and a vertical shaft slide bar 7; the longitudinal shaft bracket 2 is fixedly connected with the transverse shaft bracket 3; the front end and the rear end of the foot plate 1 are movably connected with the end 21 of the longitudinal shaft bracket, and move along the direction of the transverse shaft and rotate around the longitudinal shaft; the two ends of the cross shaft bracket 3 are movably connected with the bottom bracket 4 and swing along the direction of the longitudinal shaft; the bottom support bracket 4 is movably connected with the bottom connector 5 and rotates around a transverse shaft, and the bottom connector 5 rotates around a vertical shaft; the top connector 6 moves up and down along the vertical shaft slide bar 7 and is used for fixing the foot specimen and adjusting the vertical pressure.
By adopting the structure, the sole of the foot specimen is fixedly connected with the foot plate 1, the foot plate 1 is movably connected with the longitudinal shaft bracket 2, the foot plate 1 moves along the direction of the transverse shaft and rotates around the longitudinal shaft through the adjustment of the longitudinal shaft bracket 2, the adjustment of two degrees of freedom of the foot plate 1 is realized, and the states of the ankle inversion and eversion can be simulated. The cross shaft bracket 3 swings on the bottom bracket 4, and the bottom bracket 4 rotates around the cross shaft on the bottom connector 5, so that the foot plate 1 realizes the adjustment of the degree of freedom of rotation around the cross shaft, and the states of plantarflexion and dorsiflexion of the ankle can be simulated. The bottom connector 5 rotates around the vertical shaft, so that the foot plate 1 realizes the adjustment of the degree of freedom of the rotation of the vertical shaft, and the state of outward rotation and inward rotation of the ankle can be simulated. The top connector 6 is connected with the upper part of the foot specimen, the top connector 6 moves on the vertical shaft slide bar 7 to adjust the position, the biomechanical loading of the ankle of the foot specimen is realized, and the stress condition of the ankle in the motion condition is simulated. Therefore, the mechanical action of three-dimensional six-degree-of-freedom can be carried out on the foot specimen, the composite posture of the ankle is realized, and the detection and observation result is closer to the real physiological condition of the ankle in the motion process.
In the embodiment, the foot plate 1, the longitudinal shaft bracket 2, the transverse shaft bracket 3, the bottom bracket 4, the bottom connector 5, the top connector 6 and the vertical shaft slide bar 7 are all made of high-strength steel, so that the sufficient rigidity of the foot plate is ensured, the deformation of the device in the use process is reduced to the maximum extent, the stress loss is reduced, and the test precision and the reliability of the result are improved.
As shown in fig. 3 and 4, the longitudinal shaft bracket end 21 is provided with a transverse clamping head 22, one end of the transverse clamping head 22 is movably connected with the longitudinal shaft bracket end 21, and the other end is fixedly clamped on the foot plate 1. The transverse clamping head 22 is provided with a plurality of screw holes 221, and the transverse clamping head 22 is fixedly clamped on the foot plate 1 through the cooperation of the screw holes 221 and the screws. The lateral clamps 22 are clamped at different positions of the foot plate 1 to produce a lateral axial displacement of the foot plate 1. As shown in fig. 2, the longitudinal shaft bracket end 21 is provided with a plurality of longitudinal shaft rotation calibration holes 211 which are arranged to form a plurality of circular arcs. The coupling head 11 of the foot board 1 is inserted into the longitudinal axis rotation scale hole 211 to adjust the angle of rotation of the foot board 1 about the longitudinal axis. Thus, the states of inversion and eversion of the ankle can be simulated.
In this embodiment, the longitudinal axis bracket 2 and the transverse axis bracket 3 are vertically intersected, and the connecting part is fixed by using a metal screw to form a stable and firm support for the foot plate 1.
As shown in fig. 3, the foot board 1 is provided with a plurality of foot fixing holes 12 uniformly distributed, and in the embodiment, the foot fixing holes 12 have fifteen rows, five in each row. The screws are used to fix the foot specimen to the footboard 1 by fixing the calcaneus, the first metatarsal head and the fifth metatarsal head of the foot specimen as required. Through the foot fixed orifices 1 of not fixing the screw in different positions, can the not equidimension foot sample of adaptation, still can prevent the aversion and the slippage of foot sample in the use, improve the experiment security.
As shown in fig. 5 and 6, the two ends of the cross shaft bracket 3 are provided with a plurality of longitudinally moving scale holes 31 which are uniformly distributed, the longitudinally moving scale holes 31 are formed in a circular arc shape and correspond to the longitudinally moving scale holes 41 of the bottom bracket, and the rotating angle of the cross shaft bracket 3 can be fixed by inserting the plug-in components into the longitudinally moving scale holes 31 of the cross shaft bracket 3 and the longitudinally moving scale holes 41 of the bottom bracket, so that the rotating angle of the foot plate 1 around the cross shaft can be adjusted, and the plantar flexion and dorsal extension states of the ankle can be simulated.
As shown in fig. 2 and 7, the bottom connector 5 and the top connector 6 are conical surfaces, and the bottom connector 5 is provided with a longitudinal groove 51. As shown in fig. 1 and 8, the ankle simulation shoe further comprises a shoe connecting piece 9, the upper part of the shoe connecting piece 9 is fixedly connected with the shoe support 4, the lower part of the shoe connecting piece is movably connected in a plug hole 52 in a longitudinal groove 51, and the shoe connecting piece swings back and forth in the groove 51, so that the foot plate 1 can rotate around a transverse axis to simulate the plantar flexion and dorsal extension states of the ankle.
As shown in fig. 1, the present embodiment further includes a base 8, and the bottom connector 5 and the vertical shaft sliding rod 7 are fixed on the base, so that the bottom connector 5 and the top connector 6 are more stably engaged. The top connector 6 moves downwards along the vertical shaft slide bar 7, so that the stress of the foot specimen can be increased.
The utility model discloses a use method:
1. firstly, cutting off a fresh frozen cadaver specimen 15cm below a knee joint; removing skin, subcutaneous tissues and other soft tissues on the surface above the level of the ankle joint of the specimen, and reserving complete ligament tissues of the ankle joint and the foot; fixing the specimen model by using a reduction internal fixation method after manufacturing an ankle fracture model by osteotomy; the tibiofibula end is embedded and fixed by using the denture powder, and the fixed top end interface is connected for standby.
2. Fixing the specimen on the foot plate 1, and connecting and fixing the upper end of the specimen with the top connector 6; the degree of freedom of the foot plate 1 is periodically adjusted, the specific posture of the specimen ankle joint in the normal gait cycle is realized, and the position of the top connector 6 on the vertical shaft sliding rod 7 is adjusted, so that the stress born by the ankle joint in the specific posture is adjusted.
Thus, the specimen is subjected to biomechanical cyclic loading with specific period and frequency, and the biomechanical test can be performed on the strength of internal fixation of the fracture. The same principle can simulate the detection of other injury mechanisms and operation modes of ankle injuries. The utility model explores the pathophysiology mechanism of ankle injury and mechanically tests the operation mode to obtain reliable data; provides a high-quality reference basis for the treatment selection of the ankle injury.
The embodiment of the utility model is simple in operation, safe and reliable is based on the simulation to the normal biomechanics mechanism of ankle joint, can realize the different time ankle joint's of gait cycle posture to and the special posture of ankle joint in the sports. The embodiment can realize the mechanical test in the time phase of the dyssynchrony cycle of the ankle joint, more truly reflect the pathogenesis of ankle joint injury and more objectively and accurately compare the advantages and disadvantages of different treatment methods.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An ankle biomechanical loading device, comprising: comprises a foot plate, a longitudinal shaft bracket, a transverse shaft bracket, a bottom bracket, a bottom connector, a top connector and a vertical shaft slide bar; the longitudinal shaft bracket is fixedly connected with the transverse shaft bracket; the front end and the rear end of the foot plate are movably connected with the end head of the longitudinal shaft bracket, and move along the direction of the transverse shaft and rotate around the longitudinal shaft; the two ends of the cross shaft bracket are movably connected with the bottom bracket and swing along the direction of the longitudinal shaft; the bottom support bracket is movably connected with the bottom connector and rotates around a transverse shaft, and the bottom connector rotates around a vertical shaft; the top connector is along the vertical shaft slide bar reciprocates for fixed foot sample and adjust vertical pressure.
2. The ankle biomechanical loading device of claim 1, wherein: the end of the longitudinal shaft bracket is provided with a transverse chuck, one end of the transverse chuck is movably connected with the end of the longitudinal shaft bracket, and the other end of the transverse chuck is fixedly clamped at different positions of the foot plate.
3. The ankle biomechanical loading device of claim 2, wherein: the transverse chuck is provided with a plurality of screw holes, and the transverse chuck is fixedly clamped with the foot plate through the matching of the screw holes and the screws.
4. The ankle biomechanical loading device of claim 1, wherein: the end of the longitudinal axis support is provided with a plurality of longitudinal axis rotation scale holes which are arranged to form a plurality of circular arcs, and the connecting head of the foot plate is inserted into the longitudinal axis rotation scale holes so as to adjust the rotating angle of the foot plate around the longitudinal axis.
5. The ankle biomechanical loading device of claim 1, wherein: the longitudinal shaft bracket is vertically intersected with the transverse shaft bracket, and the intersected parts are fixedly connected through metal screws.
6. The ankle biomechanical loading device of claim 1, wherein: the foot board is provided with a plurality of uniformly distributed foot fixing holes, and the foot specimen is fixed on the foot board through the cooperation of the foot fixing holes and the screws.
7. The ankle biomechanical loading device of claim 1, wherein: the two ends of the cross shaft support are provided with a plurality of longitudinally moving scale holes which are uniformly distributed and are arc-shaped, the longitudinally moving scale holes correspond to the longitudinally moving scale holes of the bottom support, and therefore the angle of the foot plate rotating around the cross shaft is adjusted.
8. The ankle biomechanical loading device of any of claims 1-7, wherein: the bottom connector and the vertical shaft sliding rod are fixed on the base.
9. The ankle biomechanical loading device of any of claims 1-7, wherein: the bottom connector with the top connector is the circular conical surface, the bottom connector is equipped with vertical recess.
10. The ankle biomechanical loading device of claim 9, wherein: the upper part of the collet connecting piece is fixedly connected with the collet bracket, and the lower part of the collet connecting piece is movably connected in the longitudinal groove and swings back and forth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922080250.1U CN211602754U (en) | 2019-11-27 | 2019-11-27 | Ankle biomechanics loading device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922080250.1U CN211602754U (en) | 2019-11-27 | 2019-11-27 | Ankle biomechanics loading device |
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| CN211602754U true CN211602754U (en) | 2020-09-29 |
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| CN201922080250.1U Active CN211602754U (en) | 2019-11-27 | 2019-11-27 | Ankle biomechanics loading device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451308A (en) * | 2020-10-29 | 2021-03-09 | 雷德宝 | Lower limb rehabilitation instrument |
| CN112842640A (en) * | 2021-02-23 | 2021-05-28 | 重庆熙科医疗科技有限公司 | Method and device for testing biological stability of implanted talus prosthesis |
-
2019
- 2019-11-27 CN CN201922080250.1U patent/CN211602754U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451308A (en) * | 2020-10-29 | 2021-03-09 | 雷德宝 | Lower limb rehabilitation instrument |
| CN112842640A (en) * | 2021-02-23 | 2021-05-28 | 重庆熙科医疗科技有限公司 | Method and device for testing biological stability of implanted talus prosthesis |
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