CN104434342A - Medical planted osteochondral prosthesis system - Google Patents
Medical planted osteochondral prosthesis system Download PDFInfo
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- CN104434342A CN104434342A CN201410741522.7A CN201410741522A CN104434342A CN 104434342 A CN104434342 A CN 104434342A CN 201410741522 A CN201410741522 A CN 201410741522A CN 104434342 A CN104434342 A CN 104434342A
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- metab
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- prosthesis system
- articular surface
- plantation formula
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Abstract
The invention discloses a medical planted osteochondral prosthesis system which comprises a metal base and an articular surface, wherein the metal base adopts a metal with mechanical intensity; the articular surface adopts an ultra-high molecular weight polyethylene or ceramic alloy with a low friction coefficient. After being planted, the medical planted osteochondral prosthesis system disclosed by the invention can take an effect of replacing osteochondral coloboma, plays functions of the articular cartilage, can delay abrasion of the articular surface and degeneration of the proximate articular surface, delays or prevents osteoarthritis, can replace the functions of the normal articular cartilage, rebuilds a strong subchondral bone support and achieves effects of delaying or stopping articular degeneration and alleviating symptoms. The medical planted osteochondral prosthesis system has a simple structure and is safe and convenient to use.
Description
Technical field
The invention belongs to medical implants technical field, particularly relate to a kind of medical plantation formula bone cartilage prosthesis system.
Background technology
Intraarticular osteochondral defect and damage are clinical common diseases, and current therapeutic modality has boring, autologous or homogenous cartilage transplanting and chondrocyte cell transplantation etc.All also exist that repair ability is limited, pathophoresis, limited for district, complex steps, somewhat expensive etc. are not enough and complication is many.The clinical implants material being rarely exclusively used in intraarticular osteochondral defect and damage occurs both at home and abroad at present.Patient for most of intraarticular osteochondral defect is badly in need of a kind of implants that articular cartilage face can be replaced to play a role.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of medical plantation formula bone cartilage prosthesis system, be intended to solve intraarticular osteochondral defect and this clinical common disease of damage, current boring, autologous or homogenous cartilage is transplanted and chondrocyte cell transplantation therapeutic modality also exists that repair ability is limited, pathophoresis, limited for district, complex steps, somewhat expensive etc. are not enough and the problem that complication is many.Be badly in need of a kind of low-friction coefficient, the medical implants can retained for a long time in body replaces the cartilage surface of defect to obtain long-term therapeutic effect.
The embodiment of the present invention is achieved in that a kind of medical plantation formula bone cartilage prosthesis system, and this medical plantation formula bone cartilage prosthesis system comprises: metab and articular surface; Metab adopts the metal with mechanical strength, and articular surface adopts ultra-high molecular weight polyethylene or the ceramal of low-friction coefficient.
Further, this medical plantation formula bone cartilage prosthesis system shape be cylinder, cylindroid or according to cartilage defect shape customization irregularly shaped.
Further, the roughening process such as spraying are carried out in the metal surface of metab.
Further, the metal surface of metab is provided with screw thread, and metab has screw so that screw is screwed into; Metab is provided with pawl sample auxiliary fixing device.
Further, articular surface surface has radian.
Further, metab part is connected for entirety with articular surface part by modes such as tapering coupling, tenon couplings; Or by connector, articular surface part is connected with metab; By certain binding agent as bone cement, direct and sclerotin is adhesively fixed.
Further, the using method of this medical plantation formula bone cartilage prosthesis system: the maintenance of primary stability is assisted fixing with being press-fitted or adding with the screw be connected on metab, pawl device, or the body of metal has screw thread to be screwed into, articular surface and metab are connected in advance during fabrication and directly use in the lump, or after first metab being installed, again articular surface and metab are fitting to connection, or by connector, articular surface part are connected with metab; Or by certain binding agent as bone cement, direct and sclerotin is adhesively fixed.Articular surface has radian, radian size is determined according to the radian of cartilage defect, preprocessing is carried out customized according to the subregion of defect and cartilage surface radian, after it is implanted, metab plays the supporting role of subchondral bone sample, and rough surface makes long its surface upper of surrounding bone tissue and generation is fixed biology at a specified future date; Articular surface plays the friction of cartilage and transmits the effect of stress, reaches the object of replacement bone cartilage defect.
Medical plantation formula bone cartilage prosthesis system provided by the invention, adopts the metab part with the metal or alloy of certain mechanical strength, and the articular surface part composition of the ultra-high molecular weight polyethylene of low-friction coefficient or ceramal; The roughening process such as spraying can be carried out can make after implanting surrounding bone tissue length strengthens constant intensity in metallic member surface, articular surface part has certain radian, its radian size is determined according to the radian of cartilage defect, can carry out preprocessing customized according to the subregion of defect and cartilage surface radian.So after its implantation, its metab plays the supporting role of subchondral bone sample, and its rough surface can make long its surface upper of surrounding bone tissue and generation is fixed biology at a specified future date; Articular surface part can play the friction of cartilage and transmit the effect of stress, reaches the object of replacement bone cartilage defect.Medical plantation formula bone cartilage prosthesis system of the present invention can play replacement bone cartilage defect after implanting, play the function of articular cartilage face, the wearing and tearing of articular surface can be delayed and close on the regression of articular surface, delay or stop the generation of osteoarthritis, alternative normal articular cartilage function, rebuild strong subchondral support, reach and delay or stop articular degeneration, the effect of mitigation symptoms.Its simple structure, safe and convenient to use.
Accompanying drawing explanation
Fig. 1 is the structural representation that metab that the embodiment of the present invention provides is threaded with articular surface;
Fig. 2 is the structural representation that articular surface that the embodiment of the present invention provides is connected with metab by tenon coupling mode;
Fig. 3 is the structural representation that metab that the embodiment of the present invention provides is connected with articular surface connector;
Fig. 4 is that the metab band pawl that the embodiment of the present invention provides follows closely fixing structural representation;
Fig. 5 is that the metab that the embodiment of the present invention provides can follow closely fixing structural representation with multiple pawl;
Fig. 6 is the structural representation that metab that the embodiment of the present invention provides can be screwed;
Fig. 7 is the metab surface-treated schematic diagram that the embodiment of the present invention provides;
In figure: 1, metab; 2, articular surface; 3, connector; 4, pawl nail; 5, screw; 6, screw; 7, sprayed coating.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As shown in Fig. 1-Fig. 7, the medical plantation formula bone cartilage prosthesis system of the embodiment of the present invention is primarily of metab 1, articular surface 2;
As shown in Figure 1, metab 1 is threaded, and articular surface 2 is connected with metab 1 by tapering coupling;
As shown in Figure 2, metab 1 is threaded, and articular surface 2 is connected with metab 1 by tenon coupling mode;
As shown in Figure 3, metab 1 and articular surface 2 use the connection mode of connector, are made up of three parts, and metab 1 can be screwed into sclerotin and fix by the external screw thread carried; Connector 3 is the devices be connected with metab 1 by articular surface 2, and its tail end is threaded to be screwed into the female thread of metab 1, and head end is that band tapered portion is connected to mate with the tapering bottom articular surface 2; The bottom surface of articular surface 2 with the hole containing tapering, to be connected and fixed with connector 3 head.
As shown in Figure 4, metab 1 band pawl nail 4 increases constant intensity.
As shown in Figure 5, metab 1 can increase constant intensity with multiple pawl nail 4.
As shown in Figure 6, metab 1 is fixed for screw 6 with screw 5, and screw 6, with female thread, can chimericly with the external screw thread of screw 6 lock.
As shown in Figure 7, the coarse spray treatment of metab 1 is so that Bone Ingrowth is fixed; Obtain sprayed coating 7, or smooth treatment is adhesively fixed with bone cement etc.
Medical plantation formula bone cartilage prosthesis system of the present invention is by the metab part of metal or alloy with certain mechanical strength, and the articular surface part composition of the ultra-high molecular weight polyethylene of low-friction coefficient or bioceramic.Its shape can be cylinder, cylindroid or according to cartilage defect shape customization irregularly shaped.The roughening process such as spraying can be carried out can make after implanting surrounding bone tissue length strengthens constant intensity in the metallic member surface of this implants.The maintenance of primary stability is available to be press-fitted or to add with devices such as the screw be connected on metab, pawls auxiliary fixing, or the body of its metal has screw thread to be screwed into.Articular surface can be connected in advance during fabrication with metab and directly uses in the lump, or after first metab being installed, then articular surface part and metab are fitting to connection, or by connector, articular surface part is connected with metab; Or by certain binding agent as bone cement, direct and sclerotin is adhesively fixed.Its articular surface part has certain radian, and its radian size is determined according to the radian of cartilage defect, can carry out preprocessing customized according to the subregion of defect and cartilage surface radian.So after its implantation, its metab plays the supporting role of subchondral bone sample, and its rough surface can make long its surface upper of surrounding bone tissue and generation is fixed biology at a specified future date; Articular surface part can play the friction of cartilage and transmit the effect of stress, reaches the object of replacement bone cartilage defect.
Specific embodiments of the invention: be roughening process with its surface of metab part of subchondral bone bonding part, can be press-fitted or add with the device such as screw, pawl auxiliary fixing, or the body of its metal have screw thread to be screwed into.Before the application of this implants, need process the subchondral bone bottom defect, sclerotin compared with normal, soft person can directly use; For there being osteosclerosis phenomenon person, the sclerotin that first will harden takes out until normal spongy bone, again the sclerotic bone of taking-up is trimmed to bone scraps, mixing bone alternate material such as calcium sulfate, calcium carbonate etc. are implanted bottom former defect (or only using bone alternate material), and compacting, then apply this implants above it.The apparatuses such as cutter, brill are used to form the defect shape close with bone cartilage implants profile, measure its size and the degree of depth, select suitable prosthese to knock in or be screwed into, can add with screw fixtation, make the articular surface part of prosthese concordant with periarticular cartilage, radian is consistent.When metab and articular surface part are used respectively, first fixing metal base, then select the articular surface of suitable thickness to be partially embedded on metab, make it concordant with periarticular cartilage.For the osteochondral defect that area is larger, several prosthese can be selected to splice according to defect shape, size and use.Also by certain binding agent as bone cement, directly and sclerotin be adhesively fixed.
Need to use the embodiment of connector be: plantation formula bone cartilage prosthese can be made up of three parts, and metab part can be screwed into sclerotin and fix by the external screw thread carried; Connector is device articular surface part be connected with metab part, and its tail end is threaded to be screwed into the female thread of metab part, and head end is that band tapered portion is connected to mate with the tapering bottom articular surface; The bottom surface of articular surface part with the hole containing tapering, to be connected and fixed with connector head.
The present invention can play replacement bone cartilage defect after implanting, and plays the function of articular cartilage face, can delay the wearing and tearing of articular surface and close on the regression of articular surface, delaying or stop the generation of osteoarthritis.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a medical plantation formula bone cartilage prosthesis system, is characterized in that, this medical plantation formula bone cartilage prosthesis system comprises: metab and articular surface; Metab connects articular surface; Metab adopts the metal of mechanical strength, and articular surface adopts ultra-high molecular weight polyethylene or the ceramal of low-friction coefficient.
2. medical plantation formula bone cartilage prosthesis system as claimed in claim 1, is characterized in that, this medical plantation formula bone cartilage prosthesis system shape is cylinder, cylindroid or irregular column.
3. medical plantation formula bone cartilage prosthesis system as claimed in claim 1, it is characterized in that, the process of spraying roughening is carried out in the metal surface of metab.
4. medical plantation formula bone cartilage prosthesis system as claimed in claim 1, it is characterized in that, metab has screw so that screw is screwed into, and links together with metab.
5. medical plantation formula bone cartilage prosthesis system as claimed in claim 1, it is characterized in that, metab is provided with pawl sample auxiliary fixing device, links together with metab.
6. medical plantation formula bone cartilage prosthesis system as claimed in claim 1, it is characterized in that, articular surface surface has radian.
7. medical plantation formula bone cartilage prosthesis system as claimed in claim 1, is characterized in that, metab part and articular surface part are by tapering coupling, tenon coupling mode or be connected by connector.
8. medical plantation formula bone cartilage prosthesis system as claimed in claim 1, it is characterized in that, metab does not carry out coarse spraying, directly by binding agent as bone cement and bone are adhesively fixed.
9. medical plantation formula bone cartilage prosthesis system as claimed in claim 1, it is characterized in that, the using method of this medical plantation formula bone cartilage prosthesis system: the maintenance of primary stability is assisted fixing with being press-fitted or adding with the screw be connected on metab, pawl device, or the body of metal has screw thread to be screwed into, articular surface and metab are connected in advance during fabrication and directly use in the lump, or after first metab being installed, again articular surface and metab are fitting to connection, or by connector, articular surface part are connected with metab; Articular surface has radian, radian size is determined according to the radian of cartilage defect, preprocessing is carried out customized according to the subregion of defect and cartilage surface radian, after the implantation, metab plays the supporting role of subchondral bone sample, and rough surface makes surrounding bone organize long upper surface and produces and fix biology at a specified future date.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410741522.7A CN104434342A (en) | 2014-12-09 | 2014-12-09 | Medical planted osteochondral prosthesis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410741522.7A CN104434342A (en) | 2014-12-09 | 2014-12-09 | Medical planted osteochondral prosthesis system |
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| CN104434342A true CN104434342A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410741522.7A Pending CN104434342A (en) | 2014-12-09 | 2014-12-09 | Medical planted osteochondral prosthesis system |
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| CN (1) | CN104434342A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108025106A (en) * | 2015-09-29 | 2018-05-11 | 陶瓷技术有限责任公司 | The ceramic layer of thermal spraying |
| CN108697822A (en) * | 2016-01-08 | 2018-10-23 | Ucl商业有限公司 | Bone cartilage frame |
| CN109009571A (en) * | 2018-08-02 | 2018-12-18 | 北京积水潭医院 | A kind of wear-resisting joint prosthesis part replacement prosthesis and its application method |
| CN109730812A (en) * | 2019-01-31 | 2019-05-10 | 重庆凝骄生物科技有限公司 | A kind of focal cartilage defect repair body |
| CN112245069A (en) * | 2020-11-20 | 2021-01-22 | 北京爱康宜诚医疗器材有限公司 | Cartilage prosthesis |
| CN113491600A (en) * | 2020-04-03 | 2021-10-12 | 北京大学口腔医学院 | Elastic bionic artificial temporomandibular articular process prosthesis and preparation method thereof |
| WO2022143499A1 (en) * | 2020-12-28 | 2022-07-07 | 北京市春立正达医疗器械股份有限公司 | Local replacement knee joint cartilage prosthesis |
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| US20030144741A1 (en) * | 2002-01-28 | 2003-07-31 | Richard King | Composite prosthetic bearing having a crosslinked articulating surface and method for making the same |
| CN102014800A (en) * | 2008-02-28 | 2011-04-13 | 比奥波利公司 | Partial joint resurfacing implant, instrumentation, and method |
| US20130190873A1 (en) * | 2012-01-20 | 2013-07-25 | Kevin A. Mansmann | Rim anchoring systems for flexible surgical implants for replacing cartilage |
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2014
- 2014-12-09 CN CN201410741522.7A patent/CN104434342A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030144741A1 (en) * | 2002-01-28 | 2003-07-31 | Richard King | Composite prosthetic bearing having a crosslinked articulating surface and method for making the same |
| CN102014800A (en) * | 2008-02-28 | 2011-04-13 | 比奥波利公司 | Partial joint resurfacing implant, instrumentation, and method |
| US20130190873A1 (en) * | 2012-01-20 | 2013-07-25 | Kevin A. Mansmann | Rim anchoring systems for flexible surgical implants for replacing cartilage |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108025106A (en) * | 2015-09-29 | 2018-05-11 | 陶瓷技术有限责任公司 | The ceramic layer of thermal spraying |
| CN108697822A (en) * | 2016-01-08 | 2018-10-23 | Ucl商业有限公司 | Bone cartilage frame |
| CN108697822B (en) * | 2016-01-08 | 2021-11-05 | Ucl商业有限公司 | Osteochondral scaffold |
| CN109009571A (en) * | 2018-08-02 | 2018-12-18 | 北京积水潭医院 | A kind of wear-resisting joint prosthesis part replacement prosthesis and its application method |
| CN109730812A (en) * | 2019-01-31 | 2019-05-10 | 重庆凝骄生物科技有限公司 | A kind of focal cartilage defect repair body |
| CN109730812B (en) * | 2019-01-31 | 2022-02-08 | 重庆凝骄生物科技有限公司 | Focal cartilage defect prosthesis |
| CN113491600A (en) * | 2020-04-03 | 2021-10-12 | 北京大学口腔医学院 | Elastic bionic artificial temporomandibular articular process prosthesis and preparation method thereof |
| CN113491600B (en) * | 2020-04-03 | 2022-12-09 | 北京大学口腔医学院 | Elastic bionic artificial temporomandibular articular process prosthesis and preparation method thereof |
| CN112245069A (en) * | 2020-11-20 | 2021-01-22 | 北京爱康宜诚医疗器材有限公司 | Cartilage prosthesis |
| CN112245069B (en) * | 2020-11-20 | 2022-06-14 | 北京爱康宜诚医疗器材有限公司 | Cartilage prosthesis |
| WO2022143499A1 (en) * | 2020-12-28 | 2022-07-07 | 北京市春立正达医疗器械股份有限公司 | Local replacement knee joint cartilage prosthesis |
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Application publication date: 20150325 |
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