CN103315832B - Artificial bone joint friction and abrasion test device - Google Patents
Artificial bone joint friction and abrasion test device Download PDFInfo
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- CN103315832B CN103315832B CN201310291301.XA CN201310291301A CN103315832B CN 103315832 B CN103315832 B CN 103315832B CN 201310291301 A CN201310291301 A CN 201310291301A CN 103315832 B CN103315832 B CN 103315832B
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- bevel gear
- push rod
- rod
- fixedly installed
- test device
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Abstract
The invention relates to the field of instrument science or biomimetic robots, in particular to an artificial bone joint friction and abrasion test device which comprises an L-shaped base. A cylinder is fixedly arranged at the top end of the base, and a push rod which is vertically arranged is arranged on a piston rod of the cylinder. A first bevel gear is fixedly arranged on the rear portion of the push rod, and a second bevel gear meshed with the first bevel gear is arranged on the bottom face of the push rod. The push rod is concentric with the second bevel gear, and a rolling bearing is arranged in the second bevel gear. The push rod is connected with the second bevel gear through the rolling bearing, and a joint head is fixedly arranged on the lower portion of the second bevel gear. A joint fossa fixedly arranged on the base is arranged on the lower portion of a bone joint. The artificial bone joint friction and abrasion test device can realistically simulate the movement conditions of the human joints and can provide accurate and reliable test data for the clinic application of different joint prosthesis materials.
Description
Technical field
The present invention relates to instrumental science or bio-robot field, specifically a kind of joint prosthesis's frictional wear test device.
Background technology
The joint replacement history of existing more than 100 year so far, at present, the whole world has the joint replacement surgery more than 500,000 examples every year.Joint replacement mainly by organism medical material or metal based biomaterial implant into body, replaces original human organ, recovers or realize the normal function of human body.The displacement of joint replacement mainly knee joint and hip joint, artificial total hip arthroplasty achieves huge success as a maturation and classical orthopaedics therapy technology in the treatment of hip joint disease, but for young and middle-aged Patients with Aseptic Necrosis of Femoral, complication rate after using artificial joint replacement is higher, long-term effect is unsatisfactory, the skeleton animation having to accept once even several in many patient lifetime is performed the operation, and the wound from operating difficulty, art of skeleton animation operation at present all still exists problems to long-term effect.So have a lot of people to be devoted to study these new materials at present effectively can replace original bone material, make it possible to play a role in long time in human body.The wearing and tearing of artificial joint are important clinical problems, are also the important evidence detecting these materials.In recent years, researcher adopts pin-dish wear test, ring-dish wear test, four ball wear experiments etc. in succession, but experimental facilities cannot carry out the secondary friction-wear test in full-scale joint due to structural limitations, and test specimen is on contact form, variant with the operating mode in actual joint, cause the movement mechanism effectively can not simulating human body shutdown.Therefore, need the exercise performance again developing artificial joint testing machine, make it the motion conditions simulating human synovial more really, the clinical practice for different materials for joint prosthesis provides experimental data accurately and reliably.
Summary of the invention
The present invention, in order to make up deficiency of the prior art, provides a kind of convenient and practical joint prosthesis's frictional wear test device.
The present invention solves the technical scheme that its technical problem takes: a kind of joint prosthesis's frictional wear test device, comprise base, described base is " L " shape, the top of described base is fixedly installed cylinder, the piston rod of cylinder is provided with push rod, described push rod is vertically placed, described push rod rear portion is fixedly installed the first bevel gear, described push rod bottom surface is provided with the second bevel gear be meshed with the first bevel gear, described push rod is concentric with described second bevel gear, and be provided with rolling bearing in the second bevel gear, described push rod and described second bevel gear are linked together by rolling bearing, described second bevel gear bottom is fixedly installed ball and socket joint, described osteoarticular bottom is provided with the glenoid fossa be fixedly installed on base.
Further, described push rod comprises upper push-rod and lower push-rod, is provided with groove in the bottom of described upper push-rod, and the top of described lower push-rod is provided with the carriage release lever matched with groove, and the outer surface of the carriage release lever between described upper push-rod and lower push-rod is provided with spring.
Further, together with described cylinder is connected through the hinge with the top of described push rod.
Further, described sending down the fishbone is fixedly installed on clamping device, and described clamping device is fixedly installed on bracing or strutting arrangement, and described bracing or strutting arrangement is fixedly connected with described base.
Further, the vertical portion of described base is connected with crossbeam, described crossbeam is fixedly installed counter weight device.
Further, together with described base is connected through the hinge with described crossbeam.
Further, described cylinder is fixedly installed on before described base, and described push rod is fixedly installed on before described cylinder, and described crossbeam is arranged on after described base.
The invention has the beneficial effects as follows: the present invention can simulate the motion conditions of human synovial more really, and the clinical practice for different materials for joint prosthesis provides experimental data accurately and reliably.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1, base, 2, bracing or strutting arrangement, 3, glenoid fossa, 4, ball and socket joint, 5, rolling bearing, 6, spring, the 7, first bevel gear, 8, hinge, 9, push rod, 10, cylinder, 11, piston rod, 12, upper push-rod, 13, groove, 14, carriage release lever, 15, lower push-rod, 16, crossbeam, 17, the second bevel gear, 18, counter weight device, 19, clamping device.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, the present invention is further illustrated:
A kind of joint prosthesis's frictional wear test device, comprise base 1, described base 1 is " L " shape, the top of described base 1 is fixedly installed cylinder 10, the piston rod 11 of cylinder 10 is provided with push rod 9, described push rod 9 is vertically placed, described push rod 9 rear portion is fixedly installed the first bevel gear 7, described push rod 9 bottom surface is provided with the second bevel gear 17 be meshed with the first bevel gear 7, described push rod 9 is concentric with described second bevel gear 17, and be provided with rolling bearing 5 in the second bevel gear 17, described push rod 9 is linked together by rolling bearing 5 with described second bevel gear 17, described second bevel gear 17 bottom is fixedly installed ball and socket joint 4, the bottom of described ball and socket joint 4 is provided with the glenoid fossa 3 be fixedly installed on base 1.
In the present invention, described push rod 9 comprises upper push-rod 12 and lower push-rod 15, be provided with groove 13 in the bottom of described upper push-rod 12, the top of described lower push-rod 15 is provided with the carriage release lever 14 matched with groove 13, and the outer surface of the carriage release lever 14 between described upper push-rod 12 and lower push-rod 15 is provided with spring 6.
In the present invention, described cylinder 10 is linked together by hinge 8 with the top of described push rod 9.
In the present invention, described glenoid fossa 3 is fixedly installed on clamping device 19, and described clamping device 19 is fixedly installed on bracing or strutting arrangement 2, and described bracing or strutting arrangement 2 is fixedly connected with described base 1.
In the present invention, the vertical portion of described base 1 is connected with crossbeam 16, described crossbeam 16 is fixedly installed counter weight device 18.
In the present invention, described base 1 is linked together by hinge 8 with described crossbeam 16.
In the present invention, described cylinder 10 is fixedly installed on before described base 1, and described push rod 9 is fixedly installed on before described cylinder 10, and described crossbeam 16 is arranged on after described base 1.
Work process of the present invention is: the piston rod 11 of cylinder 10 swings, push rod 9 and the first bevel gear 7 is driven to swing, thus drive the second bevel gear 17 to swing, thus achieve swinging of ball and socket joint 4, simulate osteoarticular flexion and extension, while ball and socket joint 4 swings, because push rod 9 is connected by rolling bearing 5 with the second bevel gear 17, thus achieve the second bevel gear 17 and have certain rotation, ball and socket joint 4 is made also to produce certain rotation like this, and have certain friction between glenoid fossa 3, simulate osteoarticular inside and outside action of rotating, to swing in glenoid fossa 3 and in the process that rotates osteoarthrosis ball and socket joint 4, due to push rod being provided with spring, certain buffering can be realized.
Other parts in the present invention adopt prior art, do not repeat them here.
Claims (7)
1. joint prosthesis's frictional wear test device, it is characterized in that: comprise base, described base is " L " shape, the top of described base is fixedly installed cylinder, the piston rod of cylinder is provided with push rod, described push rod is vertically placed, described push rod rear portion is fixedly installed the first bevel gear, described push rod bottom surface is provided with the second bevel gear be meshed with the first bevel gear, described push rod is concentric with described second bevel gear, and be provided with rolling bearing in the second bevel gear, described push rod and described second bevel gear are linked together by rolling bearing, described second bevel gear bottom is fixedly installed ball and socket joint, described osteoarticular bottom is provided with the glenoid fossa be fixedly installed on base.
2. a kind of joint prosthesis's frictional wear test device according to claim 1, it is characterized in that: described push rod comprises upper push-rod and lower push-rod, groove is provided with in the bottom of described upper push-rod, the top of described lower push-rod is provided with the carriage release lever matched with groove, and the outer surface of the carriage release lever between described upper push-rod and lower push-rod is provided with spring.
3. a kind of joint prosthesis's frictional wear test device according to claim 1, is characterized in that: together with described cylinder is connected through the hinge with the top of described push rod.
4. a kind of joint prosthesis's frictional wear test device according to claim 1, it is characterized in that: described glenoid fossa is fixedly installed on clamping device, described clamping device is fixedly installed on bracing or strutting arrangement, and described bracing or strutting arrangement is fixedly connected with described base.
5. a kind of joint prosthesis's frictional wear test device according to claim 1, is characterized in that: the vertical portion of described base is connected with crossbeam, described crossbeam is fixedly installed counter weight device.
6. a kind of joint prosthesis's frictional wear test device according to claim 5, is characterized in that: together with described base is connected through the hinge with described crossbeam.
7. a kind of joint prosthesis's frictional wear test device according to claim 5, it is characterized in that: described cylinder is fixedly installed on before described base, described push rod is fixedly installed on before described cylinder, and described crossbeam is arranged on after described base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291301.XA CN103315832B (en) | 2013-07-11 | 2013-07-11 | Artificial bone joint friction and abrasion test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291301.XA CN103315832B (en) | 2013-07-11 | 2013-07-11 | Artificial bone joint friction and abrasion test device |
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| Publication Number | Publication Date |
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| CN103315832A CN103315832A (en) | 2013-09-25 |
| CN103315832B true CN103315832B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310291301.XA Expired - Fee Related CN103315832B (en) | 2013-07-11 | 2013-07-11 | Artificial bone joint friction and abrasion test device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114166677A (en) * | 2021-12-06 | 2022-03-11 | 安徽农业大学 | Two-axis artificial femoral head friction testing machine simulating human body environment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2167193A (en) * | 1984-10-01 | 1986-05-21 | Secr Social Service Brit | Joint operation simulator |
| PL160105B1 (en) * | 1988-10-07 | 1993-02-26 | Ts Os Tech Medycznej | Apparatus for making strenght and dynamic testes on prostheses, orthopaedic devices and their components |
| CN1677081A (en) * | 2005-03-25 | 2005-10-05 | 湖北工业大学 | Artificial joint simple simulated wear test method and its test machine |
| CN102319131A (en) * | 2011-09-20 | 2012-01-18 | 北京航空航天大学 | Abrasion test device for tibiofemoral joint of bi-dimensional rotating and bi-dimensional movement synthesized knee replacement prosthesis |
| CN102661903A (en) * | 2012-05-08 | 2012-09-12 | 上海大学 | Variable-tilt-angle stepless loading type biaxial rotary oscillation ball-block friction-abrasion test machine |
| CN203341855U (en) * | 2013-07-11 | 2013-12-18 | 山东英才学院 | Artificial bone joint friction-wear test device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO116678B1 (en) * | 1996-11-25 | 2001-04-30 | Universitatea Tehnică "Gh. Asachi" | Durability test installation for total hip prostheses |
-
2013
- 2013-07-11 CN CN201310291301.XA patent/CN103315832B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2167193A (en) * | 1984-10-01 | 1986-05-21 | Secr Social Service Brit | Joint operation simulator |
| PL160105B1 (en) * | 1988-10-07 | 1993-02-26 | Ts Os Tech Medycznej | Apparatus for making strenght and dynamic testes on prostheses, orthopaedic devices and their components |
| CN1677081A (en) * | 2005-03-25 | 2005-10-05 | 湖北工业大学 | Artificial joint simple simulated wear test method and its test machine |
| CN102319131A (en) * | 2011-09-20 | 2012-01-18 | 北京航空航天大学 | Abrasion test device for tibiofemoral joint of bi-dimensional rotating and bi-dimensional movement synthesized knee replacement prosthesis |
| CN102661903A (en) * | 2012-05-08 | 2012-09-12 | 上海大学 | Variable-tilt-angle stepless loading type biaxial rotary oscillation ball-block friction-abrasion test machine |
| CN203341855U (en) * | 2013-07-11 | 2013-12-18 | 山东英才学院 | Artificial bone joint friction-wear test device |
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| CN103315832A (en) | 2013-09-25 |
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