CN100502800C - Test device for animal anterior crossed ligamentum instant torsion - Google Patents
Test device for animal anterior crossed ligamentum instant torsion Download PDFInfo
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- CN100502800C CN100502800C CNB2007100783213A CN200710078321A CN100502800C CN 100502800 C CN100502800 C CN 100502800C CN B2007100783213 A CNB2007100783213 A CN B2007100783213A CN 200710078321 A CN200710078321 A CN 200710078321A CN 100502800 C CN100502800 C CN 100502800C
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Abstract
An experimental apparatus for the instantaneous sprain of animal' s front ligamentum cruciatum has a supporting plate, a fixing mechanism on said supporting plate and with a clamp unit, and a torsional mechanism with a ligamentum cruciatum fastener which can be turned relatively to said clamp unit for fixing mechanism. Its advantages are high controllability and high precision.
Description
Technical field
The invention belongs to the biomedicine experiment instrument, specifically is a kind of experimental provision of simulating ligamentous injury of knee joint, is used for animal model experiment.Come qualitative measurement ligament injury in various degree by changing angle.To reach under the simulation normal physiological situation degree of impairment of ligament when the violent motion.
Background technology
According to the development of biomechanics and biomedical engineering, be current international biological with the method for cyto-mechanics various stressed fibroblasts in bodies such as the different mechanical loading inferior ligament of in vitro study cell at molecule and morphological change, the focus of medical research.And mechanical stress is at rheumatoid arthritis, and the effect in osteoarthritis and the ligament injury more and more is subject to people's attention.But experimental subject is directly applied extraneous mechanical stress study by setting up animal model, more its reason place of the discussion that can go deep into.So simulate ligament injury and become inexorable trend by setting up animal model, the present invention starts with from the simulation ligament injury exactly, damages ligament by extraneous mechanical stress.
Under the normal physiological situation, ligament will be subjected to damage in various degree when carrying out strenuous exercise.Stressing conditions mainly comprises: compressive stress between tibia and the femur and outside distortion power.The distortion power that is subjected to when the joint is excessive then can to cause laceration of ligament.Therefore the present invention reaches requirement of experiment according to this principle by changing the angle of twisting between tibia and the femur.
Summary of the invention
It is good that purpose of the present invention just provides a kind of controllability, simple to operate, and error is little, the test device for animal anterior crossed ligamentum immediate sprain that precision is high, and it changes the mechanical loading unit that angle is come damage ligament in various degree by extraneous mechanical stress.
The present invention is achieved by the following technical solutions, and promptly a kind of test device for animal anterior crossed ligamentum immediate sprain comprises supporting plate; It is characterized in that: supporting plate is provided with fixture and torsion device with respect to the band retention mechanism of the rotation of the clamping device in the fixed mechanism that a strap clamp is held mechanism.
The present invention is when using like this, earlier experimental subject is placed on the supporting plate, by the fixing fixing tibia of experimental subject of the femur of experimental subject and the retention mechanism on the twist mechanism of the clamping device on the fixed mechanism, twist mechanism is rotated to an angle, because fixed mechanism is fixed, the twist mechanism rotation drives the tibia rotation, and realizes the animal anterior crossed ligamentum immediate sprain experiment.
Owing to adopted technique scheme, the present invention to have following advantage:
(1), the femur pincers are through well-designed can well agreeing with tibia and femur with the tibia pincers;
(2), this device the time can guarantee it is pure reversing in utilization, got rid of when reversing, to produce relative displacement between tibia and the femur;
(3), controllability is strong, can the better controlled distortion angle, thus measure the degree of injury of ligament qualitatively;
(4), adopted multinomial new technique, with guarantee that complete machine has efficiently, long-life, stable properties;
(5), adopt corrosion-proof wear-resistant material, guarantee that machine volume and weight are light, degree of accuracy improves greatly;
(6), to have controllability good, simple to operate, error is little, characteristics such as precision height.
Description of drawings
Description of drawings of the present invention is as follows:
Fig. 1 is the structural representation of first kind of embodiment of the present invention;
Fig. 2 is the structural representation of second kind of embodiment of the present invention;
Fig. 3 is the structural representation of the third embodiment of the present invention;
Fig. 4 is the structural representation of base.
Among the figure: 1. supporting plate; 2. base; 3. support; 4. pressing plate; 5. mosquito forceps; 6. bracing frame; 7. fastening screw; 8. open mouth tongs; 9. cantilever; 10. reverse plate; 11. handrail; 12. bracing frame; 13. test bar; 14. gripper shoe; 15. groove; 16.T type screw; 17. block; 18. adjustment hole; 19. fixed mount; 20. link; 21. chute; 22. slide unit.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
Shown in Fig. 1,2 or 3, the present invention includes supporting plate 1; It is characterized in that: supporting plate 1 is provided with fixture and torsion device with respect to the band retention mechanism of the rotation of the clamping device in the fixed mechanism that a strap clamp is held mechanism.
Shown in Fig. 1 or 3, among the embodiment 1, described fixture comprises base 2, support 3, pressing plate 4; Wherein, base 2 is fixed on the supporting plate 1, and support 3 is fixed in one with base 2; Described clamping device is the curved mosquito forceps in middle part 5, and its middle part is fixed on the support 3 by pressing plate 4.
As shown in Figure 2, among the embodiment 2, described fixture comprises base 2 and bracing frame 6; Base 2 is fixed on the supporting plate 1, and bracing frame 6 is fixed on the base 2; Described clamping device is the open mouth tongs 8 of band rotation fastening screw 7, and its logical cantilever 9 is fixedlyed connected with bracing frame 6.
Shown in Fig. 1 or 2, among the embodiment 1-1, described torsion device comprises reverse plate 10, handrail 11, the bracing frame 12 that is enclosed within on the base 2 and is fixed on test bar 13 on the base 2; Wherein, handrail 11 is fixed in one with supporting plate 1, and bracing frame 12 is fixed on the reverse plate 10; The open mouth tongs 8 of band rotation fastening screw 7, its logical cantilever 9 is fixedlyed connected with bracing frame 12.
As shown in Figure 3, among the embodiment 2-1, described torsion device comprises reverse plate 10, handrail 11, bracing frame 12, gripper shoe 14, the pressing plate 4 that is enclosed within on the base 2 and is fixed on test bar 13 on the base; Wherein, handrail and supporting plate 1 are fixed in one, and bracing frame 12 is fixed on the reverse plate, gripper shoe 14 is fixed on the upper end of bracing frame 12, retention mechanism is the curved mosquito forceps 5 in middle part, and its middle part is fixed on the gripper shoe 14 by pressing plate 4, its anterior active being enclosed within on the test bar.
As shown in Figure 4, reverse plate 10 is provided with scale, and offering cross section on base 2 is the groove 15 of T shape, is placed with T type screw 16 in the groove of this T shape, and T type screw is provided with the block 17 of barrier support frame 12 rotations of one with it.
Shown in Fig. 1,2 or 3, for the ease of adjusting the height of bracing frame, support frame as described above 12 is enclosed within on the screw rod, and bracing frame is provided with altitude mixture control hole 18, fixes by screw.
Shown in Fig. 1,2 or 3, for the ease of regulating the position of support, described support 3 comprises fixed mount 19 and link 20; Link is provided with chute 21 or slide unit 22, and fixed mount 19 is provided with and chute 21 or slide unit 22 corresponding slide unit 22 or chutes 21.
Structure in implementing 1-1 matches when using with the structure among the embodiment 1, its concrete operation principle is: earlier experimental subject is placed on the supporting plate, femur by mosquito forceps 5 clamping experimental subjecies, the tibia of open mouth tongs 8 fastening experimental subjecies, the rotating shaft of adjusting femur and tibia with test bar is in center of rotation, avoid producing when rotated between them the interference of relative displacement, block is pointed to required scale, by T type screw 16 fixed stops, hand steered firmly handrail of experimenter, the another hand-screw changes bracing frame 12, when arriving required angle, T type screw then can barrier support rotate, because the femur of experimental subject is fixed and can not rotates, and tibia will rotate with bracing frame down synchronously at the fixing of open mouth tongs, and realizes that animal anterior crossed ligamentum immediate sprain tests.
Structure among the enforcement 2-1 among the present invention matches with structure among the embodiment 2, and is similar with match with structure among the embodiment 1 operation principle used of structure in implementing 1-1, is different with the fixed part of tibia to the femur of experimental subject; Certainly implement the use that can match with the structure among the embodiment 2 of structure among the 1-1, implement uses that also can match of structure among the 2-1, just implement match with structure among the embodiment 1 more remarkable effect of use of structure among the 1-1 with the structure among the embodiment 1.Supporting plate in this practicality and reverse plate are to be cast by duralumin, and clench nail is to be cast by pyrite, and other structure is cast by stainless steel material.
Claims (6)
1, a kind of test device for animal anterior crossed ligamentum immediate sprain comprises supporting plate (1); It is characterized in that: supporting plate (1) is provided with fixture and torsion device with respect to the band retention mechanism of the rotation of the clamping device in the fixture that a strap clamp is held mechanism; Wherein said torsion device comprises reverse plate (10), handrail (11), the bracing frame (12) that is enclosed within on the base (2) and is fixed on test bar (13) on the base (2), wherein, handrail (11) is fixed in one with supporting plate (1), and bracing frame (12) is fixed on the reverse plate (10); Reverse plate (10) is provided with scale, on base (2), offer the groove that cross section is a T shape (15), be placed with T type screw (16) in the groove of this T shape, T type screw is provided with the block (17) of barrier support frame (12) rotation of one with it; Support frame as described above (12) is enclosed within on the screw rod, and this bracing frame is provided with altitude mixture control hole (18), fixes by screw.
2, test device for animal anterior crossed ligamentum immediate sprain as claimed in claim 1 is characterized in that: described fixture comprises base (2), support (3), pressing plate (4); Wherein, base (2) is fixed on the supporting plate (1), and support (3) is fixed in one with base (2); Described clamping device is the curved mosquito forceps in middle part (5), and its middle part is fixed on the support (3) by pressing plate (4).
3, test device for animal anterior crossed ligamentum immediate sprain as claimed in claim 1 is characterized in that: described fixture comprises base (2) and another bracing frame (6); Base (2) is fixed on the supporting plate (1), and described another bracing frame (6) is fixed on the base (2); Described clamping device is the open mouth tongs (8) of band rotation fastening screw (7), and it is connected with described another bracing frame (6) by cantilever (9).
4, test device for animal anterior crossed ligamentum immediate sprain as claimed in claim 1 is characterized in that: described retention mechanism is the open mouth tongs (8) of band rotation fastening screw (7), and it is connected with bracing frame (12) by cantilever (9).
5, test device for animal anterior crossed ligamentum immediate sprain as claimed in claim 1, it is characterized in that: gripper shoe (14) is fixed on the upper end of bracing frame (12), described retention mechanism is the curved mosquito forceps (5) in middle part, the middle part of mosquito forceps is fixed on the gripper shoe (14) by pressing plate (4), and the front portion of mosquito forceps is enclosed within on the test bar versatilely.
6, animal anterior crossed ligamentum immediate sprain device as claimed in claim 2 is characterized in that: described support (3) comprises fixed mount (19) and link (20); Link is provided with chute (21) or slide unit (22), and fixed mount (19) is provided with and chute (21) or corresponding slide unit of slide unit (22) (22) or chute (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100783213A CN100502800C (en) | 2007-03-23 | 2007-03-23 | Test device for animal anterior crossed ligamentum instant torsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100783213A CN100502800C (en) | 2007-03-23 | 2007-03-23 | Test device for animal anterior crossed ligamentum instant torsion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101045017A CN101045017A (en) | 2007-10-03 |
| CN100502800C true CN100502800C (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100783213A Expired - Fee Related CN100502800C (en) | 2007-03-23 | 2007-03-23 | Test device for animal anterior crossed ligamentum instant torsion |
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| CN (1) | CN100502800C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836904B (en) * | 2010-05-10 | 2013-10-30 | 大连医科大学 | Quantitative falling instrument for laboratory mice |
| CN104146777B (en) * | 2014-08-20 | 2016-08-24 | 范存义 | A kind of Simple elbow joint biomechanics experiment device |
| CN105628601B (en) * | 2015-12-21 | 2018-06-08 | 天津理工大学 | A kind of rolling load for cartilage digital picture related experiment applies control device |
| CN105640665B (en) * | 2016-02-24 | 2018-04-20 | 中国人民解放军第四军医大学 | A kind of stress loading device and loading system and method for building stress fracture animal model |
| CN106037980B (en) * | 2016-06-29 | 2017-09-26 | 山东省医学影像学研究所 | A kind of universal type pulling device for making sciatic nerve tension injury model and its application |
| CN110189828B (en) * | 2019-03-21 | 2022-03-08 | 上海涛影医疗科技有限公司 | Quantification method and quantification device for ligament space motion |
| CN112240853A (en) * | 2019-07-19 | 2021-01-19 | 张文皓 | Ligament biomechanics test system |
| CN110893127B (en) * | 2019-10-15 | 2021-07-20 | 杭州华迈医疗器械有限公司 | Animal thighbone surgery positioning fixing device |
| CN113855300B (en) * | 2021-11-10 | 2024-04-19 | 中国人民解放军陆军特色医学中心 | Animal crush injury simulation experiment device |
-
2007
- 2007-03-23 CN CNB2007100783213A patent/CN100502800C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 膝关节后交叉韧带力学性质实验研究. 权铁刚，罗民，高明，马洪顺.试验技术与试验机，第3期. 2006 |
| 膝关节后交叉韧带力学性质实验研究. 权铁刚，罗民，高明，马洪顺.试验技术与试验机，第3期. 2006 * |
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| Publication number | Publication date |
|---|---|
| CN101045017A (en) | 2007-10-03 |
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