CN105030382A - Organic polymer material dual-slide artificial knee joint - Google Patents
Organic polymer material dual-slide artificial knee joint Download PDFInfo
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- CN105030382A CN105030382A CN201510070526.1A CN201510070526A CN105030382A CN 105030382 A CN105030382 A CN 105030382A CN 201510070526 A CN201510070526 A CN 201510070526A CN 105030382 A CN105030382 A CN 105030382A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/16—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Dermatology (AREA)
- Epidemiology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
Abstract
An organic polymer material dual-slide artificial knee joint comprises a femur condyle and tibia holder made of PEEK or derivative thereof, and a tibia liner made of UHMWPE; the tibia holder comprises a platform and a stable wing positioning portion with certain cross section; the stable wing positioning portion is arranged below the platform and vertical to the platform; the top and bottom of the tibia liner are respectively jointed with the femur condyle and the platform of the tibia holder; the tibia liner is a dual-slide tibia liner, a slide surface of the femur condyle against the tibia liner and a slide surface of the tibia holder against the tibia liner are respectively a smooth surface. All implants of the organic polymer material dual-slide artificial knee joint contain no metal material, so no allergy problem will be caused by metal and metal corrosion; PEEK elastic modulus is matched with a natural bone so as to reduce stress shield problem; a wearing problems of a main slide friction surface of the PEEK femur condyle against the UHMWPE tibia liner can be reduced; a latent wearing problem of a secondary slide interface of the PEEK femur condyle against the UHMWPE tibia liner can be further reduced.
Description
Technical field
The present invention relates to a kind of medical rehabilitation instrument, more specifically, relate to the two slip artificial knee joint of a kind of high-molecular organic material.
Background technology
Since the eighties in last century, two slip artificial knee joint replacement is widely used in clinical (LaCourMT, SharmaA, CarrCB, KomistekRD, DennisDA. (2014) Confirmationoflong-terminvivobearingmobilityineightrotat ing-platformTKAs.ClinOrthopRelatRes.2014Sep; 472 (9): 2766-73).Relative to traditional list slip knee design, it is low that two slide design has contact stress, and inside and outside rotational resistance is little, and the advantage such as to automatically reset.The two slip artificial knee joints always applied clinically at present all adopt cobalt chrome molybdenum (CoCrMo) alloy to the combination of ultra-high molecular weight polyethylene (UHMWPE).Condyle of femur and tibia support (tibial plateau) are made up of CoCRMo alloy, rotatable or slidably tibia liner be made up of ultra-high molecular weight polyethylene.
No matter metal material particularly CoCrMo alloy is applied to condyle of femur or tibia support and all there is the clinical problem of complying with one's wishes not to the utmost.First, ultra-high molecular weight polyethylene tibia liner is to wear problem (KinneyMC, KamathAF. (2013) Osteolyticpseudotumoraftercementedtotalkneearthroplasty. AmJOrthop (BelleMeadNJ) .2013Nov of the main sliding surface of CoCrMo condyle of femur; 42 (11): 512-4); Second, ultra-high molecular weight polyethylene tibia liner is to the wear problem (BanerjeeS of CoCrMo tibia support time sliding surface, CherianJJ, BonoJV, KurtzSM, GeesinkR, MeneghiniRM, DelanoisRE, MontMA. (2014) GrossTrunnionFailureAfterPrimaryTotalHipArthroplasty.JAr throplasty.2014Nov26.pii:S0883-5403 (14) 00899-7); CoCrMo condyle of femur is to the stress shielding problem (PanegrossiG of natural bone, CerettiM, PapaliaM, CasellaF, FavettiF, FalezF. (2014) Bonelossmanagementintotalkneerevisionsurgery.IntOrthop.2 014Feb; 38 (2): 419-27); Three, CoCrMo tibia support is to stress shielding problem (PanegrossiG, the CerettiM of natural bone, PapaliaM, CasellaF, FavettiF, FalezF. (2014) Bonelossmanagementintotalkneerevisionsurgery.IntOrthop.2 014Feb; 38 (2): 419-27); 4th, CoCrMo alloy contains a small amount of nickel element, cause the anaphylaxis (InnocentiM of some patients, CarulliC, MatassiF, CarossinoAM, BrandiML, CivininiR. (2014) Totalkneearthroplastyinpatientswithhypersensitivitytomet als.IntOrthop.2014Feb; 38 (2): 329-33.doi:10.1007/s00264-013-2229-2); 5th, metal material inevitably produces corrosion in human body, discharges Co, Cr, Mo, Ni plasma, excessive Metal ion release can produce toxicity (KretzerJP, ReindersJ, SonntagR, HagmannS, StreitM, JeagerS, MoradiB. (2014) Wearintotalkneearthroplasty--justaquestionofpolyethylene?: Metalionreleaseintotalkneearthroplasty.IntOrthop.2014Feb; 38 (2): 335-40.doi:10.1007/s00264-013-2162-4.Epub2013Nov12.); 6th, metal material particularly CoCrMo has a strong impact on nuclear magnetic resonance, NMR (MRI) imaging (BachschmidtTJ, SutterR, JakobPM, PfirrmannCW, NittkaM. (2014) Kneeimplantimagingat3Teslausinghigh-bandwidthradiofreque ncypulses.JMagnResonImaging.2014Aug23.doi:10.1002/jmri.2 4729. [Epubaheadofprint]).
As far back as the nineties in last century, British physician and scientist once attempted list slip total knee replacement application clinically (Plante-BordeneuveP, FreemanMA. (1993) the Tibialhigh-densitypolyethylenewearinconformingtibiofemor alprostheses.JBoneJointSurgBr.1993Jul be all made up of high-molecular organic material; 75 (4): 630-6.).Condyle of femur is made up of Polyacetal (Delrin) macromolecular material, tibia rubbing surface is made up of ultra-high molecular weight polyethylene, fixing employing bone cement between Polyacetal condyle of femur and natural bone or do not have the squash type of bone cement to fix, adopts cement reaction between tibia polyethylene friction means and natural bone.The clinical trail of 10 years finds, abnormal wear problem is there is not in Polyacetal to UHMWPE rubbing surface, Polyacetal condyle of femur does not have mechanical damage problem yet, the problem of overhauling is caused mainly to loosen and early infection (BradleyGW, FreemanMA, TukeMA, McKellopHA. (1993) Evaluationofwearinanall-polymertotalkneereplacement.Part 2:clinicalevaluationofwearinapolyethyleneonpolyacetaltot alknee.ClinMater.1993; 14 (2): 127-32; McKellopHA,
t, BradleyG. (1993) Evaluationofwearinanall-polymertotalkneereplacement.Part 1:laboratorytestingofpolyethyleneonpolyacetalbearingsurf aces.ClinMater.14 (2): 117-26; MooreDJ, FreemanMA, RevellPA, BradleyGW, TukeM. (1998) Canatotalkneereplacementprosthesisbemadeentirelyofpolyme rs? JArthroplasty.13 (4): 388-95).Due to the poor chemical stability of Polyacetal after gamma ray sterilizing, Polyacetal is stopped as the clinical practice of condyle of femur.
In recent years, high chemical stability, the macromolecular material polyether-ether-ketone (PEEK) of new generation of high strength and high-biocompatibility is widely used in orthopedic implant, is particularly applied to the fixing of spinal column and merges.Since 2010, American scientist and research worker find, the PEEK macromolecular material of high strength and high stability has better wearability (WangAG than CoCrMo alloy to UHMWPE rubbing surface to the rubbing surface of UHMWPE acetabular cup liner as femoral hip prosthesis head, ZhangZT, LawrynowiczDEandYauSS (2010) OrthopedicPAEK-on-polymerbearings, HOWMEDICAOSTEONICSCORP, IPC8Class:AA61F230FI, USPCClass:6231811, Patentapplicationnumber:20100312348,2010-12-09; Singh, V, Ogden, C, Sitton, KandSitton, K (2012) Wearevaluationofdifferentpolymericmaterialsfortotaldiscr eplacement (TDR), ProceedingsoftheASME/STLEInternationalJointTribologyConf erence, LosAngeles, CA, 2011,35-37,2012).
The concept of PEEK to polyethylene slip surface has been researched and proposed although above-mentioned, but PEEK is to the friction on polyethylene slip surface, its be only suitable for having matched well degree, the articular surface of low surface contact stress, the hip joint (wear extent: 16.5 ± 1.8mm of such as socket arrangement
3/ million, WangAG, ZhangZT, LawrynowiczDEandYauSS (2010) OrthopedicPAEK-on-polymerbearings, HOWMEDICAOSTEONICSCORP, IPC8Class:AA61F230FI, USPCClass:623-1811, Patentapplicationnumber:20100312348,2010-12-09).And, PEEK can not directly embody the low wearing and tearing of High molecular weight polyethylene on hip joint in knee joint, knee joint is due to the requirement of different motion, add the impulsive force being far longer than hip joint, surface configuration is very complicated, matching degree is relatively poor, and this can cause knee joint surface pressure (10 ~ 20MPa) far away higher than hip joint (2 ~ 5MPa).These more severe mechanical environments and the coupling of the metal tibial holder with high stiffness cause wearing and tearing significantly to increase.According to ISO14243 standard testing, PEEK condyle of femur can reach 18.0 ± 3.0mm to the wearing and tearing of High molecular weight polyethylene liner
3/ million, higher than the CoCrMo used at present to poly wear extent (9.0 ± 4.0mm
3/ million, FisherJ, JenningsLM, GalvinAL, JinZM, StoneMH, InghamE. (2010) KneeSocietyPresidentialGuestLecture:Polyethylenewearinto talknees.ClinOrthopRelatRes.2010Jan; 468 (1): 12-8.doi:10.1007/s11999-009-1033-1.Epub2009Aug11), up to the present this also confirm further, and the knee-joint prosthesis why applied clinically is all metal material particularly CoCrMo alloy.
For the problems referred to above, we have done lot of experiments, and by processing further the friction surface of PEEK condyle of femur to High molecular weight polyethylene liner, andfrictional conditions has had certain improvement, but does not do the trick.No matter more than test is directly be fixed on tibia as liner bone cement in metal tibial holder or using High molecular weight polyethylene, and result is all very nearly the same.
Further, we study discovery, according to tribology principle, under high-intensity exercise load, joint wear has certain conduction transferance, should do to optimize further to reduce this impact load to tibia support, indirectly reach and reduce PEEK condyle of femur to the wear extent of High molecular weight polyethylene liner.But due to knee joint structure feature, tibia support assume responsibility for maximum load, no matter be clinical practice, or document never adopt or mentioned tibia support and can adopt other materials.Therefore, key of the present invention is whether can find out this substitution material, meet intensity simultaneously, slow down the instructions for use that impact load reduces wearing and tearing, make whole artificial knee joint entire system is better than the artificial knee joint of current all-metal material particularly CoCrMo alloy.
Summary of the invention
The present invention proposes first by the two slip artificial knee joint of a kind of high-molecular organic material, and it comprises condyle of femur, tibia liner and tibia support, and wherein condyle of femur and tibia support are made up of PEEK or derivatives thereof material, and tibia liner is made up of High molecular weight polyethylene material.Knee joint structure of the present invention is owing to creatively have employed the tibia support of PEEK or derivatives thereof material, and PEEK condyle of femur is applied in knee joint system High molecular weight polyethylene tibia liner possibility.In the present invention, by the coupling of material properties between polyethylene tibia liner and PEEK tibia support, increase PEEK condyle of femur to polyethylene tibia liner and PEEK tibia support to the buffering of polyethylene tibia liner two slidingsurfaces, control displacement between the two, have impact on the abrasion mechanism of PEEK condyle of femur to High molecular weight polyethylene tibia liner, add that sports load can effectively conduct down by PEEK tibia support, main slip between PEEK condyle of femur and polyethylene tibia liner and the secondary sliding motion between PEEK tibia support and polyethylene tibia liner are matched, reduce the alternating shear because Multidirectional motion causes, thus greatly can lower the surperficial overall wear of polyethylene liner two.According to ISO14243 standard testing, wear extent is reduced to 4.3 ± 1.1mm
3/ million, the CoCrMo being significantly better than using at present is to poly wear extent (9.0 ± 4.0mm
3/ million), therefore can predict, the knee joint life-span based on wearing and tearing can reach more than 40 years from current 20 years.This provide enough the probability of the complete knee joint system Clinical practice based on PEEK material.
In addition, the present invention uses owing to decreasing metal material the clinical problem caused, such as, the sensitivity of metal ion, toxicity, problems such as pseudotumor and because the elastic modelling quantity (3GPa) of PEEK material is well below metal (200GPa) with the elastic modelling quantity of bone similar (0.8 ~ 17GPa), so adopt the tibia support of PEEK can reduce the stress shielding of tibia, avoid bone resorption, thus reach more than the fixed effect good for a long time of 30 years; The knee joint system that overall height Molecularly Imprinted Polymer is formed can be widely used in different patient by these advantages, especially young patient, and does not need clinical overhauling; This not only can reduce the misery of patient, can also greatly reduce medical treatment cost.In addition, the present invention also solves the clamping problem in polymer operation process further, not damage polymer prosthesis, solve clinical actual use problem, present invention addresses the postoperative visualization problems of polymer prosthesis, to observe surgical effect and the long service of prosthese in human body simultaneously.
In order to realize the object of foregoing invention, the present invention adopts following technical scheme:
The two slip artificial knee joint of a kind of high-molecular organic material, comprises condyle of femur, tibia liner and tibia support, wherein:
Described tibia support comprises tibia support platform and stabilizer location division, and described stabilizer location division to be arranged on below described tibia support platform and vertical with described tibia support platform; The lower end of described condyle of femur engages with the upper end of described tibia liner; The lower end of described tibia liner engages with described tibia support platform; Described condyle of femur, described tibia liner and described tibia support are formed by macromolecular material, and wherein said condyle of femur and described tibia support are made up of polyether-ether-ketone or derivatives thereof, and described tibia liner is made up of ultra-high molecular weight polyethylene; Described tibia liner is two slip tibia liners, and to the sliding surface of described tibia liner and described tibia support, the sliding surface to described tibia liner is smooth sliding surface to wherein said condyle of femur.
Further, the surface smoothness of described sliding surface is not more than 1.0 μm.
Further, the surface smoothness of described sliding surface is less than 0.1 μm.
Further, the left and right sides of described condyle of femur is provided with clip slot; Described clip slot comprises and the metal of its form fit or ceramic stiffener; Described tibia support platform upper end sidewall comprises one or more metal band-shaped parts.
Further, the intersection of described outer end, stabilizer location division and described tibia support platform comprises metal rib.
Further, described metal reinforcement, described metal band-shaped parts and described metal rib are formed by biocompatibility metal or its alloy; Described metal or its alloy comprise vitallium, titanium or titanium alloy, tantalum or tantalum alloy, rustless steel and zirconium-niobium alloy.
Further, in described stabilizer location division, be provided with the hollow fixed leg vertical with described tibia support platform, and the opening of described hollow fixed leg is arranged on the upper surface of described tibia support platform; Or the upper surface of described platform is provided with protruding column spinner.
Further, described tibia liner lower is provided with cylindric or pyramidal column spinner; Or described tibia liner lower is set to the cavity concaved.
Further, described hollow fixed leg and described cylindric or pyramidal column spinner match; Column spinner and the described cavity concaved of described projection match.
Further, described condyle of femur, described tibia liner and described tibia support can combine flexibly and dismantle.
Owing to adopting above technical scheme, beneficial effect of the present invention is:
1), there is not the allergic problem that metal erosion and metal may cause in all implants parts not metal-containing material of the two slip artificial knee joint of high-molecular organic material provided by the invention;
2) in the present invention, the elastic modelling quantity of PEEK and natural bone match, and alleviate stress shielding problem;
3) in the present invention, the sliding surface of PEEK condyle of femur to UHMWPE tibia liner reduces wear problem;
4) in the present invention, the potential wear problem of PEEK tibia support to the sliding surface of UHMWPE tibia liner reduces further;
5) all implants parts be all made up of high-molecular organic material in the present invention do not cause interference to NMR (Nuclear Magnetic Resonance)-imaging.
Accompanying drawing explanation
Fig. 1 is that each assembly of the two slip artificial knee joint of high-molecular organic material provided by the invention engages the structural representation be integrated;
Fig. 2 is each modular construction schematic diagram of the two slip artificial knee joint of high-molecular organic material in one embodiment of the invention;
Fig. 3 is each modular construction schematic diagram of the two slip artificial knee joint of high-molecular organic material in another embodiment of the present invention.
Fig. 4 is the top view of the condyle of femur in the present invention, it illustrates the structural representation of condyle of femur both sides metal inlay;
Fig. 5 is the structural representation that in the present invention, tibia support platform upper end sidewall is bumped into metal band-shaped parts;
Fig. 6 is the profile of Fig. 5 structure of the present invention;
Description of reference numerals
1 condyle of femur, 2 tibia liners, 21 cylindric or pyramidal column spinners, 3 tibia supports, 31 hollow fixed legs, the column spinner of 32 projections, 4 tibia support platforms, 5 stabilizer location divisions, 11 metal inlay, 12 metal inlay, 33 metal band-shaped parts.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1,2 and 3, the two slip artificial knee joint of a kind of high-molecular organic material provided by the invention, comprise condyle of femur 1, tibia liner 2 and tibia support 3, wherein tibia support 3 comprises tibia support platform 4 and has the stabilizer location division 5 of a uniform section, this stabilizer location division 5 to be arranged on below tibia support platform 4 and vertical with tibia support platform 4, for by tibia support 3, and then is fixed on skeleton by whole artificial knee joint; The lower end of condyle of femur 1 engages with the upper end of tibia liner 2; The lower end of tibia liner 2 engages with tibia support platform 4; Condyle of femur 1, tibia liner 2 and tibia support 3 are formed by macromolecular material, and wherein condyle of femur 1 and tibia support 3 are made up of polyether-ether-ketone or derivatives thereof material, and tibia liner 2 is made up of ultra-high molecular weight polyethylene; Tibia liner 2 is two slip tibia liners 2, and wherein the sliding surface of condyle of femur 1 pair of tibia liner 2 and the sliding surface of tibia liner 2 pairs of tibia supports 3 are smooth sliding surface.
In addition, in the present invention, by the coupling of material properties between polyethylene tibia liner 2 and PEEK tibia support 3, increase the buffering of PEEK condyle of femur 1 pair of polyethylene tibia liner 2 and PEEK tibia support 3 pairs of polyethylene tibia liners 2 two slidingsurfaces, control displacement between the two; Owing to adding that sports load can effectively conduct down by PEEK tibia support 3, slip between PEEK condyle of femur 1 and polyethylene tibia liner 2 and the sliding motion between PEEK tibia support 3 and polyethylene tibia liner 2 are matched, reduce the alternating shear because Multidirectional motion causes, thus greatly can lower the surperficial overall wear of polyethylene liner 2 two.
According to ISO14243 standard testing, wear extent is reduced to 4.3 ± 1.1mm
3/ million, the CoCrMo being significantly better than using at present is to poly wear extent (9.0 ± 4.0mm
3/ million), therefore can predict, the knee joint life-span based on wearing and tearing can reach more than 40 years from current 20 years.This provide enough the probability of the complete knee joint system Clinical practice based on PEEK material.
In technique scheme, as Figure 4-Figure 6, the left and right sides of condyle of femur 1 is provided with clip slot; Clip slot comprises and the metal of its form fit or ceramic stiffener 11 and 12; Tibia support platform 4 upper end sidewall comprises one or more metal band-shaped parts 33; The intersection of outer end, stabilizer location division and tibia support platform 4 comprises metal rib; Metal reinforcement, metal band-shaped parts 33 and metal rib are formed by biocompatibility metal or its alloy; Metal or its alloy comprise vitallium, titanium or titanium alloy, tantalum or tantalum alloy, rustless steel and zirconium-niobium alloy.
In technique scheme, the upper surface of polyether-ether-ketone (PEEK) tibia support 3 and the faying face of ultra high molecular polyethylene (UHMWPE) two slip tibia liner 2 lower surface are taked rotatable or slidably design.In one embodiment, again as shown in Figure 2, the upper surface of polyether-ether-ketone (PEEK) tibia support platform 4 is smooth sliding surface, its surface smoothness Ra≤1.0 μm, is preferably Ra<0.1 μm; Be provided with the hollow fixed leg 31 vertical with tibia support platform 4 in the stabilizer location division 5 of tibia support 3, and the opening of this hollow fixed leg 31 is arranged on the upper surface of tibia support platform 4; Ultra-high molecular weight polyethylene (UHMWPE) two slip tibia liner 2 bottom is provided with cylindric or pyramidal column spinner 21, it can be inserted by opening on an upper in hollow fixed leg 31, and the hollow parts of its shape and size and PEEK tibia support 3 lower end fixed leg 31 matches.
In an other embodiment, again as shown in Figure 3, the upper surface of polyether-ether-ketone (PEEK) tibia support 3 is smooth sliding surface, its surface smoothness Ra≤1.0 μm, is preferably Ra<0.1 μm; Tibia support 3 upper end is provided with protruding column spinner 32; Ultra-high molecular weight polyethylene (UHMWPE) two slip tibia liner 2 bottom is provided with the empty (not shown) fallen in, and the column spinner 32 that its shape and size and PEEK tibia support 3 protrude matches.
The foregoing is only preferred embodiment of the present invention, be not used for limiting practical range of the present invention; If do not depart from the spirit and scope of the present invention, the present invention is modified or equivalent to replace, in the middle of the protection domain that all should be encompassed in the claims in the present invention.
Claims (10)
1. the two slip artificial knee joint of high-molecular organic material, is characterized in that, comprise condyle of femur, tibia liner and tibia support, wherein:
Described tibia support comprises tibia support platform and stabilizer location division, and described stabilizer location division to be arranged on below described tibia support platform and vertical with described tibia support platform; The lower end of described condyle of femur engages with the upper end of described tibia liner; The lower end of described tibia liner engages with described tibia support platform; Described condyle of femur, described tibia liner and described tibia support are formed by macromolecular material, and wherein said condyle of femur and described tibia support are made up of polyether-ether-ketone or derivatives thereof, and described tibia liner is made up of ultra-high molecular weight polyethylene; Described tibia liner is two slip tibia liners, and to the sliding surface of described tibia liner and described tibia support, the sliding surface to described tibia liner is smooth sliding surface to wherein said condyle of femur.
2. the two slip artificial knee joint of high-molecular organic material according to claim 1, it is characterized in that, the surface smoothness of described sliding surface is not more than 1.0 μm.
3. the two slip artificial knee joint of high-molecular organic material according to claim 2, it is characterized in that, the surface smoothness of described sliding surface is less than 0.1 μm.
4. the two slip artificial knee joint of high-molecular organic material according to claim 1, it is characterized in that, the left and right sides of described condyle of femur is provided with clip slot; Described clip slot comprises and the metal of its form fit or ceramic stiffener; Described tibia support platform upper end sidewall comprises one or more metal band-shaped parts.
5. the two slip artificial knee joint of high-molecular organic material according to claim 1, it is characterized in that, the intersection of described outer end, stabilizer location division and described tibia support platform comprises metal rib.
6. the two slip artificial knee joint of the high-molecular organic material according to claim 4 or 5, is characterized in that, described metal reinforcement, described metal band-shaped parts and described metal rib are formed by biocompatibility metal or its alloy; Described metal or its alloy comprise vitallium, titanium or titanium alloy, tantalum or tantalum alloy, rustless steel and zirconium-niobium alloy.
7. the two slip artificial knee joint of high-molecular organic material according to claim 1, it is characterized in that, be provided with the hollow fixed leg vertical with described tibia support platform in described stabilizer location division, and the opening of described hollow fixed leg is arranged on the upper surface of described tibia support platform; Or the upper surface of described platform is provided with protruding column spinner.
8. the two slip artificial knee joint of high-molecular organic material according to claim 1, it is characterized in that, described pair of slip tibia liner lower is provided with cylindric or pyramidal column spinner; Or the described pair of slip tibia liner lower is set to the cavity concaved.
9. the two slip artificial knee joint of the high-molecular organic material according to claim 7 or 8, it is characterized in that, described hollow fixed leg and described cylindric or pyramidal column spinner match; Column spinner and the described cavity concaved of described projection match.
10. the two slip artificial knee joint of the high-molecular organic material according to any one in claim 1-9, it is characterized in that, described condyle of femur, described pair of slip tibia liner and described tibia support can combine flexibly and dismantle.
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|---|---|---|---|
| CN201510070526.1A CN105030382A (en) | 2015-02-10 | 2015-02-10 | Organic polymer material dual-slide artificial knee joint |
| PCT/CN2015/000663 WO2016127281A1 (en) | 2015-02-10 | 2015-09-25 | Organic polymer material dual-slide artificial knee joint |
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| CN201510070526.1A CN105030382A (en) | 2015-02-10 | 2015-02-10 | Organic polymer material dual-slide artificial knee joint |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596122A (en) * | 2016-03-03 | 2016-05-25 | 华中科技大学同济医学院附属同济医院 | Artificial total knee joint prosthesis |
| CN105748176A (en) * | 2016-04-26 | 2016-07-13 | 华中科技大学同济医学院附属同济医院 | Artificial total knee joint prosthesis of integral type |
| CN107616860A (en) * | 2017-11-09 | 2018-01-23 | 北京安颂科技有限公司 | Split type tibia support prosthese and artificial knee joint |
| CN111513896A (en) * | 2019-02-05 | 2020-08-11 | 德普伊爱尔兰无限公司 | Orthopaedic prosthesis system for a rotary articulated knee prosthesis |
| CN111603278A (en) * | 2020-06-22 | 2020-09-01 | 北京爱康宜诚医疗器材有限公司 | knee prosthesis |
| CN111603279A (en) * | 2020-06-22 | 2020-09-01 | 北京爱康宜诚医疗器材有限公司 | knee prosthesis |
| CN112190757A (en) * | 2020-11-10 | 2021-01-08 | 北京大学人民医院 | Tumor type knee joint prosthesis containing CFR-PEEK material |
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| CN112274300B (en) * | 2019-07-24 | 2025-01-10 | 青岛大学附属医院 | Dual Sliding Field Tibial Plateau Base and Spacer System |
| CN112741713A (en) * | 2019-10-31 | 2021-05-04 | 苏州微创关节医疗科技有限公司 | Tibial prosthesis and knee joint prosthesis |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090036992A1 (en) * | 2006-04-07 | 2009-02-05 | Athanasios Tsakonas | Total Knee Arthroplasty Endoprothesis with Third Condyle and Rotating Polyethylene Insert |
| US20100100190A1 (en) * | 2008-10-17 | 2010-04-22 | Biomet Manufacturing Corp. | Tibial tray having a reinforcing member |
| CN202313810U (en) * | 2011-11-07 | 2012-07-11 | 黄国富 | Buffering surface type knee joint |
| CN104042360A (en) * | 2013-03-15 | 2014-09-17 | 德普伊(爱尔兰)有限公司 | Mechanical Assembly Of Titanium Foam Pegs |
| CN203852451U (en) * | 2014-05-23 | 2014-10-01 | 北京威高亚华人工关节开发有限公司 | Rotary-platform type knee joint prosthesis |
| CN204709085U (en) * | 2015-02-10 | 2015-10-21 | 江苏奥康尼医疗科技发展有限公司 | The two slip artificial knee joint of a kind of high-molecular organic material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8206451B2 (en) * | 2008-06-30 | 2012-06-26 | Depuy Products, Inc. | Posterior stabilized orthopaedic prosthesis |
-
2015
- 2015-02-10 CN CN201510070526.1A patent/CN105030382A/en active Pending
- 2015-09-25 WO PCT/CN2015/000663 patent/WO2016127281A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090036992A1 (en) * | 2006-04-07 | 2009-02-05 | Athanasios Tsakonas | Total Knee Arthroplasty Endoprothesis with Third Condyle and Rotating Polyethylene Insert |
| US20100100190A1 (en) * | 2008-10-17 | 2010-04-22 | Biomet Manufacturing Corp. | Tibial tray having a reinforcing member |
| CN202313810U (en) * | 2011-11-07 | 2012-07-11 | 黄国富 | Buffering surface type knee joint |
| CN104042360A (en) * | 2013-03-15 | 2014-09-17 | 德普伊(爱尔兰)有限公司 | Mechanical Assembly Of Titanium Foam Pegs |
| CN203852451U (en) * | 2014-05-23 | 2014-10-01 | 北京威高亚华人工关节开发有限公司 | Rotary-platform type knee joint prosthesis |
| CN204709085U (en) * | 2015-02-10 | 2015-10-21 | 江苏奥康尼医疗科技发展有限公司 | The two slip artificial knee joint of a kind of high-molecular organic material |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596122A (en) * | 2016-03-03 | 2016-05-25 | 华中科技大学同济医学院附属同济医院 | Artificial total knee joint prosthesis |
| CN105748176A (en) * | 2016-04-26 | 2016-07-13 | 华中科技大学同济医学院附属同济医院 | Artificial total knee joint prosthesis of integral type |
| CN107616860A (en) * | 2017-11-09 | 2018-01-23 | 北京安颂科技有限公司 | Split type tibia support prosthese and artificial knee joint |
| CN107616860B (en) * | 2017-11-09 | 2024-05-28 | 北京安颂科技有限公司 | Split type tibia support prosthesis and artificial knee joint |
| CN111513896A (en) * | 2019-02-05 | 2020-08-11 | 德普伊爱尔兰无限公司 | Orthopaedic prosthesis system for a rotary articulated knee prosthesis |
| CN111603278A (en) * | 2020-06-22 | 2020-09-01 | 北京爱康宜诚医疗器材有限公司 | knee prosthesis |
| CN111603279A (en) * | 2020-06-22 | 2020-09-01 | 北京爱康宜诚医疗器材有限公司 | knee prosthesis |
| CN111603279B (en) * | 2020-06-22 | 2024-12-27 | 北京爱康宜诚医疗器材有限公司 | Knee prosthesis |
| CN112190757A (en) * | 2020-11-10 | 2021-01-08 | 北京大学人民医院 | Tumor type knee joint prosthesis containing CFR-PEEK material |
| CN112190757B (en) * | 2020-11-10 | 2024-07-19 | 北京大学人民医院 | Tumor type knee joint prosthesis containing CFR-PEEK material |
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