CN105250053A - Full acetabulum prosthesis - Google Patents
Full acetabulum prosthesis Download PDFInfo
- Publication number
- CN105250053A CN105250053A CN201510762350.6A CN201510762350A CN105250053A CN 105250053 A CN105250053 A CN 105250053A CN 201510762350 A CN201510762350 A CN 201510762350A CN 105250053 A CN105250053 A CN 105250053A
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- ceramic
- lined
- bulb
- liner
- outer cup
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Abstract
The invention discloses a full acetabulum prosthesis, comprising a metal outer cup (1), a ceramic liner (2) and a ceramic ball head (3), wherein the metal outer cup (1) is arranged outside the ceramic liner (2) in a sleeving manner; the ceramic liner (2) is arranged outside the ceramic ball head (3) in a sleeving manner; the outside surface of the ceramic liner (2) is formed by the connection of multiple planes; an angle is formed between adjacent planes; the inner surface of the metal outer cup (1) is matched with the outer surface of the ceramic liner (2); the metal outer cup (1) can be connected with the ceramic liner (2); the inner surface of the ceramic liner (2) is of a ball shape; the outer surface of the ceramic ball head (3) is matched with the ball shape of the inner surface of the ceramic liner (2); the ceramic ball head and the ceramic liner are enabled to mutually rotate through a ceramic articular surface formed by the outer surface of the ceramic ball head and the inner surface of the ceramic liner. The full acetabulum prosthesis disclosed by the invention overcomes the existing defect of abrasion between an ultra high molecular weight polyethylene liner and the ball head, dislocation is not easy to occur, and prosthesis implantation is stable.
Description
Technical field
The present invention relates to a kind of medical prosthesis, particularly relate to a kind of full acetabular component replacing sufferer hip joint.
Background technology
Full hip-joint prosthese is used to the surgical implant replacing hip joint, be made up of full acetabular bone, bulb, femoral stem, liner in full acetabular bone contacts with bulb can form various forms of articular surface, and existing market superior articular surface form has that ultra-high molecular weight polyethylene liner and CoCrMo metal ball-head combine, the liner of ultra-high molecular weight polyethylene and ceramic bulb is capable of being combined forms two kinds of articular surfaces above.
Above-mentioned various articular surface form prostheses, though alternative femoral hip prosthesis partial joint face, really there is progressive, but but find when reality uses also to have some shortcomings in its structure, cause this prosthese in practical application, fail to reach best result of use, and its shortcoming can be summarized as follows:
The combination of ultra-high molecular weight polyethylene liner and CoCrMo metal ball-head and the combination of ultra-high molecular weight polyethylene liner and ceramic bulb are a kind of soft to hard articular surface compound mode, above-mentioned two kinds of articular surfaces have insurmountable heavy wear problem, because poly processing characteristics makes the articular surface circularity of liner not reach higher level, add that liner and outer cup are in installation process, liner is easily out of shape makes the sphere circularity of liner articular surface more undesirable, wear and tear more serious, producing the broken meeting of a large amount of polyethylene thus causes bone to dissolve, prosthetic loosening, finally have to carry out revision procedure.
The hip prosthesis of existing articular surface form is in use, obviously inconvenience and defect is still had, and be urgently further improved, how to develop the lengthening of a kind of prosthese life-span, prosthese implantation easy for installation is stablized, and wear-resistant and reduce the prosthese in knuckle face of debris quantities, be one of current important subject in this area.
Summary of the invention
The object of the present invention is to provide a kind of implant stable, wear and tear little full acetabular component.
For achieving the above object, the concrete technical scheme of a kind of full acetabular component of the present invention is:
A kind of full acetabular component, metal outer cup, ceramic-lined and ceramic bulb, metal outer cup is set in ceramic-lined outside, it is ceramic-lined that to be set in ceramic bulb outside, ceramic-lined outer surface has multiple plane to connect to form, have angle between adjacent plane, inner surface and the ceramic-lined outer surface of metal outer cup match, and metal outer cup can link together with ceramic-lined; Ceramic-lined inner surface is spherical in shape, and outer surface and the spherical of ceramic-lined inner surface of ceramic bulb match, and the ceramic articulation face that outer surface and ceramic-lined inner surface by ceramic bulb are formed is to make ceramic bulb and ceramic-lined mutual rotation.
The advantage of a kind of full acetabular component of the present invention is:
1) structure is simple, and wearing and tearing reduce, prosthese life, and hip joint range of activity increases, and prosthese implantation easy for installation is stablized, and prosthese that is wear-resistant and the knuckle face of minimizing debris quantities, be more suitable for practicality;
2) defect that the wearing and tearing overcoming existing ultra-high molecular weight polyethylene liner and bulb exist, provide a kind of hip prosthesis of knuckle face, not easily dislocate, Using prosthesis is stable, facilitating operation, wearing and tearing reduce life, and the bone that minimizing polyethylene chip causes dissolves, prosthetic loosening;
3) have outstanding anti-wear performance, ceramic surface is ionic structure, has high negative charge, thus hydrophilic is had, can self-lubricating, simultaneously, have good wellability, body fluid can form thin film on surface makes articular surface obtain good lubrication, reduces coefficient of friction;
4) have high hardness, ceramic material is very hard, is only second to diamond, and far above metal materials such as CoCrMo, therefore the liner made of pottery and bulb are not easily scratched;
5) there is good biocompatibility, ceramic material is inert material, chemical bond is stablized, histologic reaction is low, corrosion-free, and the stimulation of ceramic particle to tissue is also little compared with metallic particles, granule is produced little during wearing and tearing, tissue reaction is little, dissolves, have good stability so ceramic articulation can effectively reduce bone.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of full acetabular component of the present invention.
Detailed description of the invention
In order to better understand object of the present invention, structure and function, below in conjunction with accompanying drawing, further detailed description is done to the full acetabular component of one of the present invention.
As shown in Figure 1, it shows for the full acetabular component of one of the present invention, comprise metal outer cup 1, ceramic-lined 2 and ceramic bulb 3, metal outer cup 1 is set in ceramic-lined 2 outsides, ceramic-lined 2 are set in ceramic bulb 3 outside, the outer surface of ceramic-lined 2 is connected to form by multiple plane, between adjacent plane, there is angle, the outer surface that multiple plane is connected to form is trapezoidal, inner surface and ceramic-lined 2 outer surfaces of metal outer cup 1 match, metal outer cup 1 can link together with ceramic-lined 2, use ceramic material as the material of liner prosthese in full acetabular bone, the dimensional accuracy of articular surface can be strengthened, the circularity of articular surface can reach within 10 μm.
Further, the inner surface of ceramic-lined 2 is spherical in shape, inner surface is burnishing surface, high polishing degree can reach Ra0.02, the outer surface of ceramic-lined 2 is also spherical in shape, outer surface is burnishing surface, the pottery outer surface of bulb 3 and the inner surface of ceramic-lined 2 match, ceramic outer surface and the interior interior ceramic surface of ceramic-lined 2 of pottery bulb define the articular surface of relative " ceramic to ceramic ", pottery bulb 3 can rotate in ceramic-lined 2, ceramic material is very hard, the liner be made up of pottery and bulb are not easily scratched, the defect that the wearing and tearing overcoming existing ultra-high molecular weight polyethylene liner and bulb exist, not easily dislocate, Using prosthesis is stablized, facilitating operation, reduce wearing and tearing, life, reduce the bone dissolving that polyethylene chip causes, prosthetic loosening.
Further, the circularity of the sphere of ceramic-lined 2 inner surfacies is 0-0.007mm, and the sphericity of the outer surface of the ceramic bulb 3 matched with ceramic-lined 2 is 0-0.005mm, can reduce wear to greatest extent.Wherein, circularity refers to the number of degrees controlling spherical parts arbitrary section circle.
Further, ceramic-lined 2 all the manufacture of Zirconia reinforced alumina based composite ceramic material is adopted with ceramic bulb 3.
The full acetabular component of one of the present invention, structure is simple, and wearing and tearing reduce, prosthese life, and hip joint range of activity increases, and prosthese implantation easy for installation is stablized, and prosthese that is wear-resistant and the knuckle face of minimizing debris quantities, be more suitable for practicality; The defect that the wearing and tearing overcoming existing ultra-high molecular weight polyethylene liner and bulb exist, provide a kind of hip prosthesis of knuckle face, not easily dislocate, Using prosthesis is stable, facilitating operation, wearing and tearing reduce life, and the bone that minimizing polyethylene chip causes dissolves, prosthetic loosening; Have outstanding anti-wear performance, ceramic surface is ionic structure, has high negative charge, thus hydrophilic is had, can self-lubricating, simultaneously, have good wellability, body fluid can form thin film on surface makes articular surface obtain good lubrication, reduces coefficient of friction; Have high hardness, ceramic material is very hard, is only second to diamond, and far above metal materials such as CoCrMo, therefore the liner made of pottery and bulb are not easily scratched; There is good biocompatibility, ceramic material is inert material, chemical bond is stablized, histologic reaction is low, corrosion-free, and the stimulation of ceramic particle to tissue is also little compared with metallic particles, granule is produced little during wearing and tearing, tissue reaction is little, dissolves, have good stability so ceramic articulation can effectively reduce bone.
Further describe invention has been by specific embodiment above; but it should be understood that; here concrete description; should not be construed as the restriction to the spirit and scope of the invention; one of ordinary skilled in the art to the various amendments that above-described embodiment is made, belongs to the scope that the present invention protects after reading this specification.
Claims (6)
1. a full acetabular component, it is characterized in that, metal outer cup (1), ceramic-lined (2) and ceramic bulb (3), it is outside that metal outer cup (1) is set in ceramic-lined (2), it is outside that ceramic-lined (2) are set in ceramic bulb (3), the outer surface of ceramic-lined (2) is connected to form by multiple plane, between adjacent plane, there is angle, inner surface and ceramic-lined (2) outer surface of metal outer cup (1) match, and metal outer cup (1) can link together with ceramic-lined (2); The inner surface of ceramic-lined (2) is spherical in shape, the outer surface of pottery bulb (3) and the spherical of inner surface of ceramic-lined (2) match, and the ceramic articulation face that outer surface and ceramic-lined inner surface by ceramic bulb are formed is to make ceramic bulb and ceramic-lined mutual rotation.
2. full acetabular component according to claim 1, is characterized in that, the inner surface of ceramic-lined (2) is burnishing surface, and high polishing degree is 0-Ra0.02.
3. full acetabular component according to claim 1, is characterized in that, the outer surface of ceramic bulb (3) is burnishing surface.
4. full acetabular component according to claim 1, it is characterized in that, the circularity of the sphere of ceramic-lined (2) inner surface is 0-0.007mm, and the sphericity of the spherical outside surface of the ceramic bulb (3) matched with ceramic-lined (2) is 0-0.005mm.
5. full acetabular component according to claim 1, is characterized in that, ceramic-lined (2) adopt the manufacture of Zirconia reinforced alumina based composite ceramic material.
6. full acetabular component according to claim 1, is characterized in that, ceramic bulb (3) adopts the manufacture of Zirconia reinforced alumina based composite ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762350.6A CN105250053A (en) | 2015-11-10 | 2015-11-10 | Full acetabulum prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762350.6A CN105250053A (en) | 2015-11-10 | 2015-11-10 | Full acetabulum prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105250053A true CN105250053A (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510762350.6A Pending CN105250053A (en) | 2015-11-10 | 2015-11-10 | Full acetabulum prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105250053A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107261212A (en) * | 2017-02-28 | 2017-10-20 | 吴栋 | A kind of integral type acetabular component and preparation method thereof |
| CN107518963A (en) * | 2017-08-24 | 2017-12-29 | 北京爱康宜诚医疗器材有限公司 | Full hip-joint prosthese |
| CN109044570A (en) * | 2018-09-26 | 2018-12-21 | 山东威高海星医疗器械有限公司 | Liner erector |
| CN110755681A (en) * | 2019-10-31 | 2020-02-07 | 北京爱康宜诚医疗器材有限公司 | Metal and ceramic composite joint prosthesis and manufacturing method thereof |
| CN115281897A (en) * | 2022-07-29 | 2022-11-04 | 大连理工大学 | Metal-ceramic hip joint prosthesis lining and manufacturing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007108848A1 (en) * | 2006-03-20 | 2007-09-27 | Smith & Nephew, Inc. | Acetabular cup assembly for multiple bearing materials |
| CN101600403A (en) * | 2007-01-08 | 2009-12-09 | 托马斯·格拉德尔 | The acetabular bone that comprises aseptic composition surface |
| CN101947149A (en) * | 2010-10-08 | 2011-01-19 | 李亚东 | Artificial hip joint consisting of multilayer shell core composite structural components |
| CN202761481U (en) * | 2012-08-08 | 2013-03-06 | 嘉思特华剑医疗器材(天津)有限公司 | Bionic double-action full hip device |
| WO2013064817A1 (en) * | 2011-11-03 | 2013-05-10 | Biomet Uk Healthcare Limited | Prosthesis component |
| CN103211668A (en) * | 2012-01-20 | 2013-07-24 | 北京市春立正达医疗器械股份有限公司 | Bipolar head prosthesis |
-
2015
- 2015-11-10 CN CN201510762350.6A patent/CN105250053A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007108848A1 (en) * | 2006-03-20 | 2007-09-27 | Smith & Nephew, Inc. | Acetabular cup assembly for multiple bearing materials |
| CN101600403A (en) * | 2007-01-08 | 2009-12-09 | 托马斯·格拉德尔 | The acetabular bone that comprises aseptic composition surface |
| CN101947149A (en) * | 2010-10-08 | 2011-01-19 | 李亚东 | Artificial hip joint consisting of multilayer shell core composite structural components |
| WO2013064817A1 (en) * | 2011-11-03 | 2013-05-10 | Biomet Uk Healthcare Limited | Prosthesis component |
| CN103211668A (en) * | 2012-01-20 | 2013-07-24 | 北京市春立正达医疗器械股份有限公司 | Bipolar head prosthesis |
| CN202761481U (en) * | 2012-08-08 | 2013-03-06 | 嘉思特华剑医疗器材(天津)有限公司 | Bionic double-action full hip device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107261212A (en) * | 2017-02-28 | 2017-10-20 | 吴栋 | A kind of integral type acetabular component and preparation method thereof |
| CN107518963A (en) * | 2017-08-24 | 2017-12-29 | 北京爱康宜诚医疗器材有限公司 | Full hip-joint prosthese |
| CN107518963B (en) * | 2017-08-24 | 2023-12-19 | 北京爱康宜诚医疗器材有限公司 | Total hip joint prosthesis |
| CN109044570A (en) * | 2018-09-26 | 2018-12-21 | 山东威高海星医疗器械有限公司 | Liner erector |
| CN110755681A (en) * | 2019-10-31 | 2020-02-07 | 北京爱康宜诚医疗器材有限公司 | Metal and ceramic composite joint prosthesis and manufacturing method thereof |
| CN110755681B (en) * | 2019-10-31 | 2023-09-08 | 吉瑞骨科有限公司 | Metal and ceramic composite joint prosthesis and manufacturing method thereof |
| CN115281897A (en) * | 2022-07-29 | 2022-11-04 | 大连理工大学 | Metal-ceramic hip joint prosthesis lining and manufacturing method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |
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| RJ01 | Rejection of invention patent application after publication |