CN203811473U - Guarantee testing device for aluminum oxide ceramic femoral head - Google Patents
Guarantee testing device for aluminum oxide ceramic femoral head Download PDFInfo
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- CN203811473U CN203811473U CN201420190909.3U CN201420190909U CN203811473U CN 203811473 U CN203811473 U CN 203811473U CN 201420190909 U CN201420190909 U CN 201420190909U CN 203811473 U CN203811473 U CN 203811473U
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- pressure
- femoral head
- bone
- aluminium oxide
- oxide ceramics
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Abstract
The utility model discloses a guarantee testing device for an aluminum oxide ceramic femoral head. The guarantee testing device comprises a fixed platform and further comprises a support device, a first pressure device, a second pressure device and a bone to be tested, wherein the support device is arranged on the fixed platform; the first pressure device is embedded above the support device to provide an upper part pressure of a piece to be tested; the second pressure device is arranged on the fixed platform to provide lower part pressure of the piece to be tested; the bone to be tested is arranged in the support device; the upper part of the bone to be tested is contacted with the first pressure device and the lower part of the bone to be tested is contacted with the second pressure device so as to carry out a guarantee test. The testing device is simple in structure and convenient to mount; the bone to be tested is arranged on a lower support and the bone to be tested is accurately positioned by upper and lower pressure devices so as to simulate movement, stressing and lubricating states after an artificial hip joint is planted into a human body, and lay foundation to accurate test data; the upper and lower supports are relatively fixed by a fastening piece so as to be good for detaching and adjusting the relative gap width, and the accuracy of an experiment is ensured.
Description
Technical field
The utility model relates to a kind of technical field of medical instruments test unit, especially relates to a kind of aluminium oxide ceramics femoral head warranty test device.
Background technology
Artificial hip joint replacing is an important means that solves arthropathy patient, affects the rate of wear that principal element is exactly joint-friction face in artificial hip joint life-span.The metal femoral head that the combination of tradition joint-friction face adopts is due to large to poly wear extent, and himself also exists wearing and tearing, and serviceable life is shorter, generally only has about 10 years, and this is not too applicable to the larger young patient of activity.Aluminium oxide ceramics is because having good water wettability, wear-resistant and high-biocompatibility, become the most competitive material, first-selected fastness using aluminium oxide ceramics femoral head and ceramic cotyloid cavities as long-life, high-quality hip prosthesis in the world, the security of the full hip of aluminium oxide ceramics and validity have obtained checking through more than 40 years clinical.
Aluminium oxide ceramics femoral head and ceramic cotyloid cavities adopt medical grade alumina ceramic powder sintering to form, no matter ceramic material have how good, how high product quality have, its intensity is to be a discrete distribution, always there is portioned product intensity in low-level region, this low intensive product cannot detect by other detection modes, only has in use and just can come out.From nineteen ninety-five, warranty test is applied to the detection of ceramic friction pair, and its principle is stress in analog equipment body, utilize hydraulic action in taper hole inside surface, do not destroying under the condition of specification product, eliminating those and have the product of intensity hidden danger, improving the security of product.After warranty test, the percentage of damage of product obviously declines.This method of testing is simple and quick, can eliminate substandard product, can not cause damage to specification product simultaneously.
On domestic market, there is no relevant testing equipment yet, therefore design and develop a kind of particularly necessity of aluminium oxide ceramics femoral head warranty test device that is beneficial to.
Utility model content
Technical problem to be solved in the utility model provides a kind of warranty test device, can realize motion, stressed and lubricating status after simulation aluminium oxide ceramics femoral head implant into body, the testing machine of test different materials prosthese dynamic fatigue wear condition under certain condition, for clinical practice provides comparatively accurately and reliably experimental data, and make up domestic deficiency aspect aluminium oxide ceramics femoral head dynamic fatigue Wearing Simulated Test machine.
In order to realize this object, the technical solution of the utility model is: a kind of aluminium oxide ceramics femoral head warranty test device, comprise stationary platform, and also comprise:
Stand apparatus, described stand apparatus is arranged in described stationary platform;
The first pressure apparatus, described the first pressure apparatus is embedded at described stand apparatus top, and the upper pressure of to be measured is provided;
The second pressure apparatus, described the second pressure apparatus is arranged in described stationary platform, and the bottom pressure of to be measured is provided;
Treat side seam head, described bone to be measured is placed in described stand apparatus, and its top contacts with the first pressure apparatus, and bottom contacts with the second pressure apparatus, thereby carries out warranty test.
Further improvement as technique scheme:
According to embodiment of the present utility model, described stand apparatus comprises upper bracket and undersetting, is reinforced and is supported forming double-deck bearing one-piece construction between the two, and have relative gap between the two by some securing members.
According to embodiment of the present utility model, described securing member comprises screw rod and nut, and described screw rod one end is connected in described undersetting, and the other end is through described upper bracket, and described nut is placed in clamping described upper bracket on screw rod.
According to embodiment of the present utility model, described the first pressure apparatus comprises oil pressure pump and control system and piston, and described piston one end is connected in described oil pressure pump and control system, and the other end is placed in upper and lower bearing gap through described upper bracket.
According to embodiment of the present utility model, described piston lower end arranges tygon acetabular bone, and described tygon acetabular bone and described bone to be measured match.
According to embodiment of the present utility model, described the second pressure apparatus comprises high-pressure hydraulic pump and control system and water under high pressure transfer tube, described water under high pressure transfer tube tail end is connected in described high-pressure hydraulic pump and control system, and the other end is communicated with described bone to be measured through described stationary platform and undersetting.
According to embodiment of the present utility model, described water under high pressure transfer tube is fixed by securing member and described undersetting.
According to embodiment of the present utility model, on described undersetting, be furnished with sealing gasket.
According to embodiment of the present utility model, described in treat that side seam head is for treating side pottery femoral head.
Compared with prior art, the beneficial effects of the utility model are:
This test unit is simple in structure, installation is convenient, bone to be measured is placed on undersetting can accurately locate bone to be measured by upper and lower pressure apparatus, thereby motion, stressed and lubricating status after simulation artificial hip joint implant into body, for accurate providing of test figure lays the foundation; Upper and lower bearing is relatively fixedly beneficial to dismounting and is regulated relative gap width by securing member, has guaranteed the accuracy of experiment; Meanwhile, rationally arranging of upper and lower pressure guaranteed the reliability of testing.
Accompanying drawing explanation
Fig. 1 is ceramic femoral head schematic diagram to be measured in the utility model;
Fig. 2 is the utility model warranty test principle schematic;
In figure: 1, oil pressure pump and control system; 10, high-pressure hydraulic pump and control system; 2, piston; 3, upper bracket; 4, tygon acetabular bone; 5, treat side pottery femoral head; 6, sealing gasket; 7, undersetting; 8, water under high pressure transfer tube; 9, stationary platform.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in the figure, the aluminium oxide ceramics femoral head warranty test device of the present embodiment, comprises stationary platform 9, also comprises:
Stand apparatus, stand apparatus is arranged in stationary platform 9;
The first pressure apparatus, the first pressure apparatus is embedded at stand apparatus top, and the upper pressure of to be measured is provided;
The second pressure apparatus, the second pressure apparatus is arranged in stationary platform 9, and the bottom pressure of to be measured is provided;
Treat side seam head, bone to be measured is placed in stand apparatus, and its top contacts with the first pressure apparatus, and bottom contacts with the second pressure apparatus, thereby carries out warranty test.
Stand apparatus comprises upper bracket 3 and undersetting 7, is reinforced and is supported forming double-deck bearing one-piece construction between the two, and have relative gap between the two by some securing members.
Securing member comprises screw rod and nut, and screw rod one end is connected in undersetting 7, and the other end is through upper bracket 3, and nut is placed in clamping upper bracket 3 on screw rod.
The first pressure apparatus comprises oil pressure pump and control system 1 and piston 2, and piston 2 one end are connected in oil pressure pump and control system 1, and the other end is placed in upper and lower bearing gap through upper bracket 3.
Piston 2 lower ends arrange tygon acetabular bone 4, and tygon acetabular bone 4 matches with bone to be measured.
The second pressure apparatus comprises high-pressure hydraulic pump and control system 10 and water under high pressure transfer tube 8, and water under high pressure transfer tube 8 tail ends are connected in high-pressure hydraulic pump and control system 10, and the other end is communicated with bone to be measured through stationary platform 9 and undersetting 7.
Water under high pressure transfer tube 8 is fixing by securing member and undersetting 7.
On undersetting 7, be furnished with sealing gasket 6.
Treat that side seam head is for treating side pottery femoral head 5.
Embodiment: a kind of aluminium oxide ceramics femoral head warranty test device, in stationary platform, be provided with stand apparatus, during test, tested ceramic femoral head 5 is placed on the sealing gasket 6 of undersetting between two parties, in order to simulate as far as possible ceramic femoral head 5 force-bearing situation in human body, particularly, the first pressure apparatus comprises oil pressure pump and control system 1 and piston 2, it is arranged at stand apparatus top, piston 2 one end are connected in oil pressure pump and control system 1, the other end enters through upper bracket, in the gap that undersetting forms, simultaneously, on tested ceramic femoral head 5, place the tygon acetabular bone 4 of same specification, in tygon acetabular bone 4 upper ends, connect piston 2, lower end and bone snap-fit to be measured, by oil pressure pump and control system 1, make piston 2 to bone to be measured, apply the power that is not more than 20KN, further, the second pressure apparatus being arranged in stationary platform comprises high-pressure hydraulic pump and control system 10 and water under high pressure transfer tube 9, water under high pressure transfer tube 9 one end are connected in high-pressure hydraulic pump and control system 10, the other end is through hole and undersetting in the middle of stationary platform, sensible bone to be measured, and then on tested ceramic femoral head 5, apply hydraulic pressure pressure upwards, wherein hydraulic pressure is 120 ~ 180MPa, and keep 20 ~ 60 seconds, motion after simulation implant into body, stressed and lubricating status, after being completed, unloading checks ceramic femoral head 5, without damaging, show that tested ceramic femoral head 5 is qualified.
Although oneself has described the utility model with reference to several exemplary embodiments, should be appreciated that term used is explanation and exemplary and nonrestrictive term.Because the utility model can specifically be implemented in a variety of forms and not depart from spirit or the essence of utility model, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in the claim of enclosing, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.
Claims (9)
1. an aluminium oxide ceramics femoral head warranty test device, comprises stationary platform (9), it is characterized in that, also comprises:
Stand apparatus, described stand apparatus is arranged in described stationary platform (9);
The first pressure apparatus, described the first pressure apparatus is embedded at described stand apparatus top, and the upper pressure of to be measured is provided;
The second pressure apparatus, it is upper that described the second pressure apparatus is arranged in described stationary platform (9), and the bottom pressure of to be measured is provided;
Treat side seam head, described bone to be measured is placed in described stand apparatus, and its top contacts with the first pressure apparatus, and bottom contacts with the second pressure apparatus, thereby carries out warranty test.
2. aluminium oxide ceramics femoral head warranty test device according to claim 1, it is characterized in that: described stand apparatus comprises upper bracket (3) and undersetting (7), by some securing members, reinforce and support forming double-deck bearing one-piece construction between the two, and there is relative gap between the two.
3. aluminium oxide ceramics femoral head warranty test device according to claim 2, it is characterized in that: described securing member comprises screw rod and nut, described screw rod one end is connected in described undersetting (7), the other end is through described upper bracket (3), and described nut is placed in clamping described upper bracket (3) on screw rod.
4. aluminium oxide ceramics femoral head warranty test device according to claim 2, it is characterized in that: described the first pressure apparatus comprises oil pressure pump and control system (1) and piston (2), described piston (2) one end is connected in described oil pressure pump and control system (1), and the other end is placed in upper and lower bearing gap through described upper bracket (3).
5. aluminium oxide ceramics femoral head warranty test device according to claim 4, is characterized in that: described piston (2) lower end arranges tygon acetabular bone (4), and described tygon acetabular bone (4) matches with described bone to be measured.
6. aluminium oxide ceramics femoral head warranty test device according to claim 1, it is characterized in that: described the second pressure apparatus comprises high-pressure hydraulic pump and control system (10) and water under high pressure transfer tube (8), described water under high pressure transfer tube (8) tail end is connected in described high-pressure hydraulic pump and control system (10), and the other end is communicated with described bone to be measured through described stationary platform (9) and undersetting (7).
7. aluminium oxide ceramics femoral head warranty test device according to claim 6, is characterized in that: described water under high pressure transfer tube (8) is fixing by securing member and described undersetting (7).
8. aluminium oxide ceramics femoral head warranty test device according to claim 2, is characterized in that: on described undersetting (7), be furnished with sealing gasket (6).
9. aluminium oxide ceramics femoral head warranty test device according to claim 2, is characterized in that: described in treat that side seam head is for treating side pottery femoral head (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420190909.3U CN203811473U (en) | 2014-04-18 | 2014-04-18 | Guarantee testing device for aluminum oxide ceramic femoral head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420190909.3U CN203811473U (en) | 2014-04-18 | 2014-04-18 | Guarantee testing device for aluminum oxide ceramic femoral head |
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|---|---|
| CN203811473U true CN203811473U (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420190909.3U Expired - Fee Related CN203811473U (en) | 2014-04-18 | 2014-04-18 | Guarantee testing device for aluminum oxide ceramic femoral head |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990864A (en) * | 2015-06-19 | 2015-10-21 | 西安理工大学 | Biomaterial physiological load external load simulator and test method thereof |
| WO2016049721A1 (en) * | 2014-09-29 | 2016-04-07 | Universidade Federal Do Rio Grande Do Sul - Ufrgs | Isoelastic femoral stem made of polymer |
| CN107505192A (en) * | 2017-06-23 | 2017-12-22 | 天津市天津医院 | Acetabular bone simulation fixture and preparation method thereof |
-
2014
- 2014-04-18 CN CN201420190909.3U patent/CN203811473U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016049721A1 (en) * | 2014-09-29 | 2016-04-07 | Universidade Federal Do Rio Grande Do Sul - Ufrgs | Isoelastic femoral stem made of polymer |
| CN104990864A (en) * | 2015-06-19 | 2015-10-21 | 西安理工大学 | Biomaterial physiological load external load simulator and test method thereof |
| CN104990864B (en) * | 2015-06-19 | 2017-12-01 | 兰州大学第一医院 | A kind of external loading simulator of biomaterial physiological loads and method of testing |
| CN107505192A (en) * | 2017-06-23 | 2017-12-22 | 天津市天津医院 | Acetabular bone simulation fixture and preparation method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Alumina ceramic femoral head proof test device and using method Effective date of registration: 20151120 Granted publication date: 20140903 Pledgee: Bank of Shaoxing Limited by Share Ltd. emerging industries branch Pledgor: ZHEJIANG HAISHENG MEDICAL DEVICE Co.,Ltd. Registration number: 2015330000070 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20160418 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230331 Granted publication date: 20140903 Pledgee: Bank of Shaoxing Limited by Share Ltd. emerging industries branch Pledgor: ZHEJIANG HAISHENG MEDICAL DEVICE Co.,Ltd. Registration number: 2015330000070 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |