CN201837569U - Multi-shaft artificial joint testing machine - Google Patents
Multi-shaft artificial joint testing machine Download PDFInfo
- Publication number
- CN201837569U CN201837569U CN2010205544288U CN201020554428U CN201837569U CN 201837569 U CN201837569 U CN 201837569U CN 2010205544288 U CN2010205544288 U CN 2010205544288U CN 201020554428 U CN201020554428 U CN 201020554428U CN 201837569 U CN201837569 U CN 201837569U
- Authority
- CN
- China
- Prior art keywords
- testing machine
- solution basin
- joint
- spherical
- spherical hinges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 15
- 238000004088 simulation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 241000309551 Arthraxon hispidus Species 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 210000004394 hip joint Anatomy 0.000 description 8
- 101000911772 Homo sapiens Hsc70-interacting protein Proteins 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 208000012659 Joint disease Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 206010003246 arthritis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000963 osteoblast Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
Landscapes
- Prostheses (AREA)
Abstract
The utility model relates to a multi-shaft artificial joint testing machine, which comprises a frame-shaped bracket. The middle part of the frame-shaped bracket is provided with a central bracket, an arc-shaped base ring is arranged on the central bracket, a spherical base is arranged on the arc-shaped base ring, a solution basin is arranged on the spherical base, a ball head seat is sleeve in the solution basin, the edge of the solution basin is fixedly provided with a movable platform, the bottom of the movable platform is provided with a plurality of upper spherical hinges, a bottom plate is provided with a plurality of lower spherical hinges corresponding to the upper spherical hinges, and electric cylinders are connected between the upper spherical hinges and the lower spherical hinges in an inclined way; a joint matched with a joint head is arranged above the ball head seat, a guide block is arranged above the joint, a tension sensor is connected between the joint and the guide block, the guide block is arranged in a guide sleeve, a hydraulic cylinder is arranged on the guide sleeve, and the piston rod of the hydraulic cylinder is connected with the guide block; and a heating device is arranged in the solution basin, and a temperature controller is arranged on a top plate. The multi-shaft artificial joint testing machine has a simple and compact structure, good simulation effect and a low manufacturing cost, and is easy to operate.
Description
Technical field
The utility model relates to a kind of joint prosthesis testing machine, especially a kind ofly is applicable to simulation human hip actual motion, artificial joint material is carried out friction-wear test fountain type joint prosthesis testing machine.
Background technology
Along with human society steps into the aging stage, the various joint diseases relevant with advanced age as illnesss such as thigh fracture, arthritis, will take place in a large number, and therefore the demand to joint prosthesis also can increase day by day.At present, existing about 3,000 ten thousand people in the whole world have implanted joint prosthesis, and annual replacement amount is about 2,000,000 examples.Joint prosthesis is stressed in vivo to be quite abominable, as artificial hip joint, will stand about 3.6 * 10 every year
6The inferior load impacting and the wearing and tearing that may be several times as much as the human body body weight.Simultaneously because normal person's bone is constantly adjusted its external form in the heterogeneous equilibrium of osteoblast and osteophage, chip from the prosthese friction surface gathers at juxtra-articular, can cause the osteophage in the health to increase, break the balance between osteophage and the Gegenbaur's cell, make prosthetic loosening, therefore, wearing and tearing and wear particle are sent out and are still the subject matter that influences the artificial hip joint permanance.For studying this problem, the engineering staff adopts the joint prosthesis testing machine that artificial joint material is carried out friction-wear test, the friction and wear behavior of data analysis artificial joint material by experiment, to improve the service property (quality) of joint prosthesis, prolong its clinical life-span and alleviate the patient suffering and have important practical significance.
Simulation test machine is broadly divided into three classes: (1) balance staff type (Biaxial-Hip-Simulator) according to the difference of institute's skimulated motion mode at present; (2) pin dish-type (Pin-on-Disk); (3) fountain type (Multi-Hip-Simulator).Wherein the balance staff type mainly is to rely on the relative motion between pedestal and the inclined-plane base to simulate the wobbling action of hip joint three Different Plane, is early stage testing machine; Pin dish-type friction wear testing machine is to carry out friction-wear test with sliding contacting mode, by disk and be processed into that formed relative motion comes the frictional behaviour of research material and the greasy property of synovia between the test specimen of pin shape, it is present joint prosthesis tribology testing machine commonly used, though this two classes testing machine can be simulated the human body hip joint motion, the actual motion mode difference of its analog form and human hip is bigger.Fountain type mainly is by being that formed single motion is synthesized and simulated artificial hip joint motion form with disalignment, the actual motion mode of its analog form and human hip is comparatively approaching, the fountain type artificial hip joint simulated experiment machine of making as Britain Leeds university and Durham university etc., but its complex structure, the cost height.Simultaneously, discover the domestic relevant report of not seeing this type of simulation tester for artificial hip joint development aspect as yet through extensive investigation.
Summary of the invention
Technical matters: the purpose of this utility model is to overcome the deficiencies in the prior art part, provide a kind of simple in structure, cost is low, can realize the fountain type joint prosthesis simulated experiment machine of the multidirectional compound motion of cross-like.
Technical scheme: for achieving the above object, fountain type joint prosthesis testing machine of the present utility model, comprise by top board, the frame support that pillar and base plate connect and compose, the middle part of frame support is provided with the center bearing bracket that is fixed on the base plate, center bearing bracket is provided with the cambered surface seat ring, the cambered surface seat ring is provided with the sphere pedestal that matches with its cambered surface, the sphere pedestal is provided with bottom setting-in solution basin within it, be set with the ball cup that ball and socket joint is set in the solution basin, the basin of solution basin along on be fixed with moving platform, the bottom of moving platform is provided with a plurality of spherical hinges of going up, base plate is provided with and the corresponding a plurality of spherical hinges down of last spherical hinge, tilts to be connected with electronic cylinder between last spherical hinge and the following spherical hinge; The ball cup top is provided with the cotyla that matches with ball and socket joint, the cotyla top is provided with orienting lug, be connected with pulling force sensor between cotyla and the orienting lug, orienting lug is located in the orienting sleeve, orienting sleeve is fixed on the top board through the cylinder register pin, orienting sleeve is provided with the hydraulic cylinder that is fixed on the top board top, and the piston rod of hydraulic cylinder is connected with orienting lug; Be provided with heating arrangement in the solution basin, be located at the temperature controller that is connected with temperature sensor on the top board.
Describedly a plurality ofly go up spherical hinge and corresponding a plurality of numbers of spherical hinges down are 2～4 with it; The described following spherical hinge that is fixed on the base plate slopes inwardly about 5 ° along axial line.
Beneficial effect: the suffered load of hip joint when the utility model utilizes hydraulic system that anthropomorphic dummy's walking is provided, and imposed load is detected and feed back by pressure transducer, further revise the load that is applied.Ball cup is the quick change part, different ball and socket joints, and only needing to change different ball cups can be connected with testing machine.The sphere pedestal of thrust bearing is concentric with ball and socket joint, can make ball and socket joint in doing the process of compound motion, and the load on its non-perpendicular direction is zero.Under the off working state, the centre of sphere of the centre of sphere of ball and socket joint and the last ball pivot of electronic cylinder can guarantee the accuracy of skimulated motion in same surface level.Electronic cylinder is connected used following ball pivot with base plate, the 5 ° of installations of tilting can effectively increase the pivot angle of moving platform, can prevent the dead angle simultaneously.Be used to contain its bottom sealing of solution basin of lubricating fluid, can prevent the leakage of biological lubricating fluid.Temperature control part temperature controller, heating arrangement and temperature sensor can make the test temperature of the biological lubricants in the solution basin remain on 37 ± 1 ℃.It is simple in structure, compact, and is easy to operate, and simulate effect is good, and cost is low, can correctly simulate the actual motion operating mode of human hip in testing laboratory's environment.
Description of drawings
Fig. 1 is the structural representation of the utility model fountain type joint prosthesis testing machine;
Fig. 2 is a moving platform plan structure synoptic diagram of the present utility model.
Among the figure: 1-base plate, 2-pillar, the electronic cylinder of 3-, 4-seat ring, the 5-connector, the last spherical hinge of 6-, 7-moving platform, the last support plate of 8-, 9-cylinder register pin, 10-hydraulic cylinder, 11-orienting sleeve, 12-guider screw, the 13-temperature controller, 14-orienting lug, 15-pillar pulling force sensor, 16-holding screw, the 17-cotyla, 18-solution basin, 19-ball and socket joint, 20-ball cup, the 21-holding screw, 22-sphere pedestal, 23-support, spherical hinge under the 24-.
Embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Shown in Figure 1, fountain type joint prosthesis testing machine of the present utility model mainly is made of frame support, electronic cylinder 3, center bearing bracket 23, solution basin 18, moving platform 7, last spherical hinge 6, following spherical hinge 24, frame support comprise top board 8, with top board 8 corresponding base plates 1, being provided with between the roof and floor its bolt is the pillar 9 of one.The center bearing bracket 23 that base plate 1 middle part of frame support has through screw retention, three reinforcements have evenly been arranged on the outside of center bearing bracket 23 is vertical, be embedded with cambered surface seat ring 4 on the center bearing bracket 23, cambered surface seat ring 4 is provided with the sphere pedestal 22 that matches with its cambered surface, and cambered surface seat ring 4 middle parts have the through hole that helps 22 dismountings of sphere pedestal; Sphere pedestal 22 is provided with bottom setting-in solution basin 18 within it, be set with the ball cup 20 that ball and socket joint 19 is set in the solution basin 18, the basin of solution basin 18 along on be fixed with moving platform 7, base plate 1 is provided with a plurality of down spherical hinges 24 identical with last spherical hinge 6 numbers, and a plurality of spherical hinges 24 down slope inwardly about 5 ° along axial line.A plurality ofly go up spherical hinges 6 and corresponding a plurality of numbers of spherical hinges 24 down are 2～4 with it, the model of spherical hinge is SRJ024C up and down.Moving platform 7 is a triangle, as shown in Figure 2, be respectively equipped with one on three angles of its triangle bottom surface and go up spherical hinge 6, go up between spherical hinge 6 and three following spherical hinges 24 for three and tilt to be connected with the electronic cylinder 3 that model is GSM30-1002, three electronic cylinders 10 are equilateral triangle and evenly arrange, all be connected with moving platform 7 with base plate 1 with the sphere hinge, by independent programming Control, but electronic cylinder 3 anthropomorphic dummies' motion frequency, and export corresponding displacement, finish cross-like compound motion pattern thereby drive moving platform 7, the sphere hinge 6 that electronic cylinder 3 is connected with base plate 1, be 5 ° of angles with horizontal direction, can effectively increase the pivot angle of moving platform, the dead angle in can preventing to move simultaneously.Be provided with connector 5 between electronic cylinder 3 piston rods and the last spherical hinge 6; Ball cup 20 tops are provided with the cotyla 17 that matches with ball and socket joint 19, cotyla 17 tops are provided with orienting lug 14, being connected with model between cotyla 17 and the orienting lug 14 is the pulling force sensor 15 of MCL-Z5, two of pulling force sensor 15 is respectively by holding screw 16 and cotyla 17, orienting lug 14 is fixed together, orienting lug 14 is located in the orienting sleeve 11, orienting sleeve 11 is fixed on the top board 8 through cylinder register pin 9, orienting sleeve 11 is provided with the hydraulic cylinder 10 that is fixed on top board 8 tops, the piston rod head of hydraulic cylinder 10 is inlaid in the orienting lug 14, be fastened together through sunk screw, the periphery that orienting lug 14 matches with orienting sleeve 11 is provided with and has guide groove, orienting sleeve 11 is provided with the guider screw 12 that stretches in the guide groove, and the guide groove on orienting lug 14 peripheries is finished the guide function of hydraulic cylinder external part.Be provided with the heating arrangement that the test temperature that can make the biological lubricants in the solution basin 33 remains on 37 ± 1 ℃ in the solution basin 33, be located at the temperature controller 13 that is connected with temperature sensor on the top board 8.Ball and socket joint 19 is to be threaded on the ball cup 20, trip bolt 21 plays the anti-rotation effect, ball cup 20 and solution basin 18 transition fit, solution basin 18 and sphere pedestal 22 transition fit, again through screw retention, solution basin 18 is the bottom surface enclosed construction, can effectively prevent the leakage of lubricating fluid, sphere pedestal 22 is slidingly matched with seat ring 4, simultaneously, the spherical outside surface centre of sphere of the centre of sphere of ball and socket joint 19 and sphere pedestal 22 can guarantee in the course of the work on same position, the load that hydraulic cylinder applies is just in time passed through the centre of sphere of ball and socket joint 19, and load is zero on non-vertical direction.
Claims (3)
1. fountain type joint prosthesis testing machine, it is characterized in that: it comprises by top board (8), the frame support that pillar (9) and base plate (1) connect and compose, the middle part of frame support is provided with the center bearing bracket (23) that is fixed on the base plate (1), center bearing bracket (23) is provided with cambered surface seat ring (4), cambered surface seat ring (4) is provided with the sphere pedestal (22) that matches with its cambered surface, sphere pedestal (22) is provided with bottom setting-in solution basin (18) within it, be set with the ball cup (20) that ball and socket joint (19) are set in the solution basin (18), the basin of solution basin (18) along on be fixed with moving platform (7), the bottom of moving platform (7) is provided with a plurality of spherical hinges (6) of going up, base plate (1) is provided with and the corresponding a plurality of spherical hinges (24) down of last spherical hinge (6), tilts to be connected with electronic cylinder (3) between last spherical hinge (6) and the following spherical hinge (24); Ball cup (20) top is provided with the cotyla (17) that matches with ball and socket joint (19), cotyla (17) top is provided with orienting lug (14), be connected with pulling force sensor (15) between cotyla (17) and the orienting lug (14), orienting lug (14) is located in the orienting sleeve (11), orienting sleeve (11) is fixed on the top board (8) through cylinder register pin (9), orienting sleeve (11) is provided with the hydraulic cylinder (10) that is fixed on top board (8) top, and the piston rod of hydraulic cylinder (10) is connected with orienting lug (14); The solution basin is provided with heating arrangement in (33), is located at the temperature controller (13) that is connected with temperature sensor on the top board (8).
2. fountain type joint prosthesis testing machine according to claim 1 is characterized in that: describedly a plurality ofly go up spherical hinges (6) and corresponding a plurality of numbers of spherical hinges (24) down are 2～4 with it.
3. fountain type joint prosthesis testing machine according to claim 1 is characterized in that: the described following spherical hinge (24) that is fixed on the base plate (1) slopes inwardly about 5 ° along axial line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205544288U CN201837569U (en) | 2010-09-27 | 2010-09-27 | Multi-shaft artificial joint testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205544288U CN201837569U (en) | 2010-09-27 | 2010-09-27 | Multi-shaft artificial joint testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201837569U true CN201837569U (en) | 2011-05-18 |
Family
ID=44007679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205544288U Expired - Lifetime CN201837569U (en) | 2010-09-27 | 2010-09-27 | Multi-shaft artificial joint testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201837569U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984338A (en) * | 2010-09-27 | 2011-03-09 | 中国矿业大学 | Multiaxial artificial joints tester |
| CN104297091A (en) * | 2014-10-23 | 2015-01-21 | 桂林电子科技大学 | Novel artificial hip joint friction testing machine |
| CN104458223A (en) * | 2014-09-17 | 2015-03-25 | 浙江工业大学 | Device used for detecting adaptability degree of high-precision friction pair |
| CN105928788A (en) * | 2016-04-25 | 2016-09-07 | 重庆大学 | Spherical hinge constraining method capable of realizing hinge joint compression on 1000-t testing machine |
| CN111650040A (en) * | 2020-06-09 | 2020-09-11 | 哈尔滨工业大学 | Multi-degree-of-freedom femur static and fatigue test fixture |
-
2010
- 2010-09-27 CN CN2010205544288U patent/CN201837569U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984338A (en) * | 2010-09-27 | 2011-03-09 | 中国矿业大学 | Multiaxial artificial joints tester |
| CN101984338B (en) * | 2010-09-27 | 2012-11-14 | 中国矿业大学 | Multiaxial artificial joints tester |
| CN104458223A (en) * | 2014-09-17 | 2015-03-25 | 浙江工业大学 | Device used for detecting adaptability degree of high-precision friction pair |
| CN104297091A (en) * | 2014-10-23 | 2015-01-21 | 桂林电子科技大学 | Novel artificial hip joint friction testing machine |
| CN105928788A (en) * | 2016-04-25 | 2016-09-07 | 重庆大学 | Spherical hinge constraining method capable of realizing hinge joint compression on 1000-t testing machine |
| CN111650040A (en) * | 2020-06-09 | 2020-09-11 | 哈尔滨工业大学 | Multi-degree-of-freedom femur static and fatigue test fixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101984338B (en) | Multiaxial artificial joints tester | |
| CN101975707B (en) | Hip joint testing machine based on steel rope drive | |
| CN201837569U (en) | Multi-shaft artificial joint testing machine | |
| CN204128807U (en) | 3-RUU type parallel institution hip joint tester | |
| CN103760006B (en) | A kind of artificial hip joint fatigue test device | |
| CN100516818C (en) | Artificial joint simple simulated wear test method and its test machine | |
| CN103257076A (en) | Artificial hip joint dynamic fatigue wear sample clamp and tester | |
| CN102525691B (en) | Air cylinder self-resetting type hip joint test machine | |
| CN102928572B (en) | Hydraulic-lifting self-weight loading device for landslide physical model test | |
| CN207396253U (en) | A kind of multifunction manual hip joint abrasion tester | |
| CN105300672B (en) | The external fatigue tester of alternate load stepless adjustable internal fixation of spine device | |
| CN107727523B (en) | Multifunctional artificial hip joint wear testing machine | |
| CN103091190A (en) | Multi-station multidirectional-movement wear testing machine | |
| CN103926158B (en) | A kind of cartilage Creep Mechanics performance testing device | |
| CN104297091A (en) | Novel artificial hip joint friction testing machine | |
| CN203520744U (en) | Universal loading device for ankle | |
| CN201831982U (en) | Hip joint tester based on wire rope transmission | |
| CN105891035A (en) | Frictional wear testing device of orthopaedic implantation instrument | |
| CN109813239A (en) | Cam-tappet contact pair lubricating oil film measuring instrument and use method thereof | |
| CN105067465B (en) | A kind of double acting platform parallel connected bionic hip joint tester and its test method | |
| CN107839783A (en) | A kind of robot leg firm organization | |
| CN202568535U (en) | Cylinder automatic reset type hip joint testing machine | |
| CN211394497U (en) | Multifunctional osteochondral bioreactor | |
| CN108593475B (en) | Erosion and abrasion experiment table for meniscus of artificial knee joint | |
| CN104007029A (en) | Dynamic mechanical experimental device and method for tissue engineering scaffold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110518 Effective date of abandoning: 20130227 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110518 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |