CN101548915A - Artificial knee joint - Google Patents
Artificial knee joint Download PDFInfo
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- CN101548915A CN101548915A CNA2008100888510A CN200810088851A CN101548915A CN 101548915 A CN101548915 A CN 101548915A CN A2008100888510 A CNA2008100888510 A CN A2008100888510A CN 200810088851 A CN200810088851 A CN 200810088851A CN 101548915 A CN101548915 A CN 101548915A
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- condyle
- tibia
- artificial knee
- prosthese
- faying face
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Abstract
The invention relates to an artificial knee joint comprising a femur condyle prosthesis, a tibial plateau prosthesis and a joint pad. The femur condyle prosthesis is provided with a joint surface, a condyles jointing surface, an inter-condyles jointing surface, a positioning pin and an intramedullary handle. The tibial plateau prosthesis is provided with a plateau body, a tibia jointing surface, a positioning piece and a tibia intramedullary handle. The condyles jointing surface, the inter-condyles jointing surface, the surface of the positioning pin, the surface of the intramedullary handle, the tibia jointing surface, the surface of the positioning piece and the surface of the tibia intramedullary handle together constitute an osseous jointing surface. Part or all of the osseous jointing surface is integrated into a whole so as to form a three-dimensional net body. The surface of the three-dimensional net body is provided with a plurality of holes extending from the surface to the inside. Horizontal passages communicated with part or all of the holes are arranged inside the three-dimensional net body. The horizontal passages of the three-dimensional net body are single-layer or multi-layer passages. The artificial knee joint has the advantage of long-time looseness prevention.
Description
Technical field
The present invention relates to a kind of artificial knee joint.
Background technology
The artificial knee replacement surgery has become a kind of common relatively surgical operation in medical circle at present, artificial knee joint is formed by condyle of femur prosthese and tibial plateau prosthese with the joint spacer that ultra high molecular polyethylene is manufactured usually, joint spacer be connected on the tibial plateau prosthese and be in the condyle of femur prosthese and the tibial plateau prosthese between, during operation condyle of femur prosthese and tibial plateau prosthese are bonded in patient's femur end and neck end respectively with bone cement, the condyle of femur prosthese can move with respect to joint spacer, allows the patient that the efficient recovery artificial knee joint of proper motion in the past can be arranged thereby form one.But, owing to can have some slits between bone cement and femur end and the neck end, the articular surface of artificial knee joint and the friction between the joint spacer after surgery can produce small chip gradually, the molten ossein that these small chips are produced after by macrophage phagocytic will cause the artificial knee joint surrounding bone to organize dissolving gradually after infiltrating slit between bone cement and femur and the tibia, finally can cause becoming flexible of artificial knee joint.
Summary of the invention
The purpose of this invention is to provide a kind of artificial knee joint that prevents long-term loosening.
For achieving the above object, the present invention takes following design:
A kind of artificial knee joint, it comprises: condyle of femur prosthese, tibial plateau prosthese and joint spacer, it is characterized in that,
Described condyle of femur prosthese has the interior handle of faying face, alignment pin and marrow between articular surface, condyle faying face, condyle;
Described tibial plateau prosthese has handle in platform body, tibia faying face, keeper and the tibia marrow;
The interior handle surface composition sclerotin faying face of handle surface, tibia faying face, keeper surface and tibia marrow in faying face, alignment pin surface, the marrow between described condyle faying face, condyle, the local surfaces of described sclerotin faying face or all surfaces are formed with three-dimensional dictyosome, the surface of described three-dimensional dictyosome has most by table hole inwards, described three-dimensional dictyosome inside has the horizontal duct in connected component or whole holes, and the horizontal duct of described three-dimensional dictyosome is monolayer duct or multilamellar duct.
Described keeper is a wing plate.
Described keeper is the tibia alignment pin.
Described keeper is made up of wing plate and tibia alignment pin.
The surface of described three-dimensional dictyosome has hydroxyapatite coating layer.
Described condyle of femur prosthese and tibial plateau prosthese are made by medical metal or bioceramic.
Advantage of the present invention is:
1, the artificial knee joint of the present invention is owing to adopt above design, use earlier special-purpose operating theater instruments that condyle of femur prosthese and the tibial plateau prosthese corresponding site shape that the kneed femur end of patient and tibia end are trimmed to artificial knee joint fitted like a glove during operation, then with handle in the marrow of condyle of femur prosthese, alignment pin inserts in the femur and fits tightly until condyle faying face and sclerotin, with handle in the tibia marrow of tibial plateau prosthese, keeper inserts in the tibia and fits tightly until tibia faying face and sclerotin, after artificial knee joint is installed, in the hole of the chimeric three-dimensional dictyosome of growing into of osteocyte and the duct and around locking, the condyle of femur prosthese can be moved with respect to joint spacer, allow the patient that the efficient recovery artificial knee joint of proper motion in the past can be arranged thereby form one, and reach the effect that prevents that long-term effectively the artificial knee joint generation from becoming flexible.
2, the artificial knee joint of the present invention can make three-dimensional dictyosome be arranged in the whole local surfaces or all surfaces of sclerotin faying face according to the difference of patient's sclerotin damaged condition and the needs of biomechanics.
3, the artificial knee joint of the present invention, wherein the surface of three-dimensional dictyosome has the hydroxyapatite coating layer that can induce osteocyte to grow into, and this hydroxyapatite coating layer can adopt conventional plasma spraying method or the heavy collection method of electrochemistry to form.
4, the artificial knee joint of the present invention, wherein the horizontal duct of three-dimensional dictyosome can be the monolayer duct, if look darker and sclerotin is connected more firm then adopts the multilamellar duct with artificial knee joint for the ease of sclerotin.
5, the artificial knee joint of the present invention, wherein condyle of femur prosthese and tibial plateau prosthese are made by medical metal or bioceramic, so it has good biocompatibility.
6, the artificial knee joint of the present invention, according to the needs of patient treatment, ectocondyle integral type or unilateral in condyle of femur prosthese and tibial plateau prosthese can be made.
Description of drawings
Fig. 1 is a perspective view of the present invention
Fig. 2 is a decomposition texture sketch map of the present invention
Fig. 3 is condyle of femur prosthese embodiment one structural representation among the present invention (three-dimensional dictyosome is arranged in all surfaces on handle surface in faying face between condyle faying face, condyle, alignment pin surface and the marrow)
Fig. 4 is condyle of femur prosthese embodiment two structural representations among the present invention (three-dimensional dictyosome is arranged in all surfaces on handle surface in condyle faying face and the marrow)
Fig. 5 is condyle of femur prosthese embodiment three structural representations among the present invention (three-dimensional dictyosome is arranged in all surfaces on handle surface in faying face between condyle, alignment pin surface and the marrow)
Fig. 6 is condyle of femur prosthese embodiment four structural representations among the present invention (three-dimensional dictyosome is arranged in the local surfaces on handle surface in all surfaces on local surfaces, alignment pin surface of faying face between the local surfaces, condyle of condyle faying face and the marrow)
Fig. 7 is tibial plateau prosthese embodiment one structural representation among the present invention (three-dimensional dictyosome is arranged in all surfaces on handle 12 surfaces in tibia faying face 10, keeper 11 surfaces and the tibia marrow)
Fig. 8 is tibial plateau prosthese embodiment two structural representations among the present invention (three-dimensional dictyosome is arranged in all surfaces on keeper 11 surfaces and all surfaces on interior handle 12 surfaces of tibia marrow)
Fig. 9 is tibial plateau prosthese embodiment three structural representations among the present invention (three-dimensional dictyosome is arranged in all surfaces on handle 12 surfaces in the tibia marrow)
Figure 10 is tibial plateau prosthese embodiment four structural representations among the present invention (three-dimensional dictyosome is arranged in the local surfaces on handle 12 surfaces in tibia faying face 10, keeper 11 surfaces and the tibia marrow)
Figure 11 is three-dimensional dictyosome embodiment one structural representation (the horizontal duct in the three-dimensional dictyosome is the monolayer duct) among the present invention
Figure 12 is three-dimensional dictyosome embodiment two structural representations (the horizontal duct in the three-dimensional dictyosome is the multilamellar duct) among the present invention
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, shown in Figure 12, a kind of artificial knee joint of the present invention, it comprises: condyle of femur prosthese 1, tibial plateau prosthese 2 and joint spacer 3, it is characterized in that,
Condyle of femur prosthese 1 has the interior handle 8 of faying face 6, alignment pin 7 and marrow between articular surface 4, condyle faying face 5, condyle;
Tibial plateau prosthese 2 has handle 12 in platform body 9, tibia faying face 10, keeper 11 and the tibia marrow;
The interior handle 12 surface composition sclerotin faying faces of handle 8 surfaces, tibia faying face 10, keeper 11 surfaces and tibia marrow in faying face 6, alignment pin 7 surfaces, the marrow between condyle faying face 5, condyle, the local surfaces of sclerotin faying face or all surfaces are formed with three-dimensional dictyosome 13, the surface of three-dimensional dictyosome 12 has most by table hole 14 inwards, three-dimensional dictyosome 13 inside have connected component or whole horizontal ducts 15 in holes 14, and the horizontal duct 15 of three-dimensional dictyosome 13 is monolayer duct (as shown in figure 11) or 2 layers of duct (as shown in figure 12) or 3 layers also road or other multilamellar duct.
The horizontal duct 15 of three-dimensional dictyosome 13 can be to be arranged in parallel or arranged crosswise or reticulate layout.
The surface of three-dimensional dictyosome 13 has hydroxyapatite coating layer, and this hydroxyapatite coating layer can adopt conventional plasma spraying method or the heavy collection method of electrochemistry to form.
Condyle of femur prosthese 1 and tibial plateau prosthese 2 are made by medical metal or bioceramic.
The condyle of femur prosthese 1 in the artificial knee joint of the present invention and the processing method of tibial plateau prosthese 2 are: the physical model of setting up condyle of femur prosthese 1 and tibial plateau prosthese 2 in electronic computer, adopt laser or high-power electron beam processing method melt molding then, can also also can obtain required three-dimensional dictyosome in addition with methods such as spark machined, chemical attacks casting or the blank surface etch of the condyle of femur prosthese 1 of forging molding and tibial plateau prosthese 2, eroding away needed three-dimensional dictyosome with powder sintering method.
Claims (7)
1, a kind of artificial knee joint, it comprises: condyle of femur prosthese, tibial plateau prosthese and joint spacer, it is characterized in that,
Described condyle of femur prosthese has the interior handle of faying face, alignment pin and marrow between articular surface, condyle faying face, condyle;
Described tibial plateau prosthese has handle in platform body, tibia faying face, keeper and the tibia marrow;
The interior handle surface composition sclerotin faying face of handle surface, tibia faying face, keeper surface and tibia marrow in faying face, alignment pin surface, the marrow between described condyle faying face, condyle, the local surfaces of described sclerotin faying face or all surfaces are formed with three-dimensional dictyosome, the surface of described three-dimensional dictyosome has most by table hole inwards, described three-dimensional dictyosome inside has the horizontal duct in connected component or whole holes, and the horizontal duct of described three-dimensional dictyosome is monolayer duct or multilamellar duct.
2, artificial knee joint according to claim 1 is characterized in that, described keeper is a wing plate.
3, artificial knee joint according to claim 1 is characterized in that, described keeper is the tibia alignment pin.
4, artificial knee joint according to claim 1 is characterized in that, described keeper is made up of wing plate and tibia alignment pin.
5, according to claim 1 or 2 or 3 or 4 described artificial knee joints, it is characterized in that the surface of described three-dimensional dictyosome has hydroxyapatite coating layer.
6, according to claim 1 or 2 or 3 or 4 described artificial knee joints, it is characterized in that described condyle of femur prosthese and tibial plateau prosthese are made by medical metal or bioceramic.
7, artificial knee joint according to claim 5 is characterized in that, described condyle of femur prosthese and tibial plateau prosthese are made by medical metal or bioceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100888510A CN101548915A (en) | 2008-04-01 | 2008-04-01 | Artificial knee joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100888510A CN101548915A (en) | 2008-04-01 | 2008-04-01 | Artificial knee joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101548915A true CN101548915A (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100888510A Pending CN101548915A (en) | 2008-04-01 | 2008-04-01 | Artificial knee joint |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586544A (en) * | 2015-01-15 | 2015-05-06 | 北京爱康宜诚医疗器材股份有限公司 | High-flexion type knee joint prosthesis |
| CN104644290A (en) * | 2013-11-18 | 2015-05-27 | 中国科学院深圳先进技术研究院 | Porous total knee prosthesis |
| CN105105887A (en) * | 2015-08-11 | 2015-12-02 | 嘉思特华剑医疗器材(天津)有限公司 | Tibial prosthesis building system suitable for different types of tibial malformations and defects |
| CN106726016A (en) * | 2017-03-03 | 2017-05-31 | 叶川 | A kind of knee joint prosthesis system and human synovial repair system |
| CN107198598A (en) * | 2016-03-18 | 2017-09-26 | 重庆润泽医药有限公司 | A kind of artificial knee joint |
| CN107530171A (en) * | 2015-02-05 | 2018-01-02 | 巴黎公共援助医院 | Utilize ceramic-on-ceramic friction torque and the total knee prosthese of mobile ceramic wafer |
| CN110448392A (en) * | 2019-03-13 | 2019-11-15 | 上海交通大学医学院附属第九人民医院 | A kind of tibial plateau prosthese and preparation method thereof of 3D printing personalization |
| CN114886620A (en) * | 2022-04-27 | 2022-08-12 | 大连大学附属中山医院 | Biological tantalum metal knee joint prosthesis |
-
2008
- 2008-04-01 CN CNA2008100888510A patent/CN101548915A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104644290A (en) * | 2013-11-18 | 2015-05-27 | 中国科学院深圳先进技术研究院 | Porous total knee prosthesis |
| CN104586544A (en) * | 2015-01-15 | 2015-05-06 | 北京爱康宜诚医疗器材股份有限公司 | High-flexion type knee joint prosthesis |
| CN107530171A (en) * | 2015-02-05 | 2018-01-02 | 巴黎公共援助医院 | Utilize ceramic-on-ceramic friction torque and the total knee prosthese of mobile ceramic wafer |
| US10667920B2 (en) | 2015-02-05 | 2020-06-02 | Assistance Publique—Hopitaux de Paris | Total knee prosthesis with ceramic-on-ceramic friction torque and mobile ceramic plate |
| CN107530171B (en) * | 2015-02-05 | 2020-06-16 | 巴黎公共援助医院 | Total knee prosthesis using ceramic-to-ceramic friction torque and moving ceramic plates |
| US11160658B2 (en) | 2015-02-05 | 2021-11-02 | Assistance Publique—Hopitaux de Paris | Total knee prosthesis with ceramic-on-ceramic friction torque and mobile ceramic plate |
| CN105105887A (en) * | 2015-08-11 | 2015-12-02 | 嘉思特华剑医疗器材(天津)有限公司 | Tibial prosthesis building system suitable for different types of tibial malformations and defects |
| CN105105887B (en) * | 2015-08-11 | 2019-02-12 | 嘉思特华剑医疗器材(天津)有限公司 | Tibial prosthesis building system suitable for different types of tibial malformations and defects |
| CN107198598A (en) * | 2016-03-18 | 2017-09-26 | 重庆润泽医药有限公司 | A kind of artificial knee joint |
| CN106726016A (en) * | 2017-03-03 | 2017-05-31 | 叶川 | A kind of knee joint prosthesis system and human synovial repair system |
| CN110448392A (en) * | 2019-03-13 | 2019-11-15 | 上海交通大学医学院附属第九人民医院 | A kind of tibial plateau prosthese and preparation method thereof of 3D printing personalization |
| CN114886620A (en) * | 2022-04-27 | 2022-08-12 | 大连大学附属中山医院 | Biological tantalum metal knee joint prosthesis |
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Application publication date: 20091007 |