CN101972178A - Magnetic suspension artificial knee joint - Google Patents

Magnetic suspension artificial knee joint Download PDF

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Publication number
CN101972178A
CN101972178A CN 201010559938 CN201010559938A CN101972178A CN 101972178 A CN101972178 A CN 101972178A CN 201010559938 CN201010559938 CN 201010559938 CN 201010559938 A CN201010559938 A CN 201010559938A CN 101972178 A CN101972178 A CN 101972178A
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prosthesis
knee joint
artificial knee
arranged
magnetic
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CN 201010559938
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Chinese (zh)
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高若云
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高若云
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Abstract

The invention discloses a magnetic suspension artificial knee joint comprising a femur prosthesis and a tibia prosthesis, wherein a connecting slot is arranged on the femur prosthesis; a connecting column is arranged on the tibia prosthesis; the femur prosthesis and the tibia prosthesis are connected in an up and down mode through a semi-hinge structure formed by the connecting column and the connecting slot; two rows of inlaid holes are arranged on the femur prosthesis and the tibia prosthesis; magnetic steel is inlaid in the inlaid holes; the polarity on the lower end of the magnetic steel arranged on the femur prosthesis and the polarity on the upper end of the magnetic steel arranged on the tibia prosthesis are the same, and the same polarities are guaranteed to mutually repel. The surface of the magnetic suspension artificial knee joint is covered with a smooth and wearable surface layer material to be implanted into a human body when being applied. The magnetic suspension artificial knee joint has the advantages of high feasibility, good effect, and clinical popularization and use suggestion.

Description

一种磁悬浮人工膝关节 Magnetic Levitation artificial knee joint

技术领域 FIELD

[0001 ] 本发明涉及一种磁悬浮人工膝关节。 [0001] The present invention relates to a magnetic levitation artificial knee joint. 背景技术 Background technique

[0002] 骨性关节炎又名退变性关节病、增生性骨关节炎,是一种慢性关节疾病,主要改变是关节软骨面的退行性变和继发性骨质增生,主要变现为关节疼痛和活动不灵。 [0002] Osteoarthritis, also known as degenerative joint disease, hypertrophic osteoarthritis, joint disease is a chronic, degenerative changes are the main and secondary osteoarthritis of the articular cartilage, joint pain mainly realized and activities not working. X线变现为关节间隙变窄、软骨下骨致密、骨小梁断裂、有硬化和囊性变关节边缘有唇状增生,后期则出现骨断变形,关节面凹凸不平,关节内软骨剥脱、骨质碎裂进入关节形成关节游离体。 X-ray is realized joint space narrowing, subchondral bone density, trabecular bone fracture, becomes hardened and cystic hyperplasia lip edge joints, bone fragments occurs late deformation, uneven joint surface, stripping the articular cartilage, bone fragmentation mass is formed into the joint articular loose bodies. 骨性关节炎是中老年人的多发病,我国人群中膝关节的骨性关节炎发病率为9. 65%,60岁以上人群患病率高达78.5%,是导致中老年人群功能残疾的主要原因之一。 Osteoarthritis is a frequently-occurring disease in the elderly, our population knee osteoarthritis incidence rate of 9.65%, above 60 years of age prevalence rate of 78.5%, leading to functional disability in the elderly population is mainly one of the reasons. 本病随年龄的增长而逐渐加重,早期的保守治疗均不能有效地阻止病情的蔓延,晚期病人唯一有效的治疗手段就是人工膝关节置换。 The disease gradually increased with age, the early conservative treatment can not effectively stop the spread of the disease, terminally ill patients the only effective treatment is total knee replacement. 在美国每年进行人工膝关节置换手术达20万例以上,我国由于经济等方面的原因数量明显偏少,但每年也在万例以上。 In the United States each year total knee replacement surgery more than 200,000 cases, due to the number of reasons for our economic and other aspects significantly less than normal, but also in more than ten thousand cases per year.

[0003] 目前,人工膝关节的研究进展如下: [0003] Currently, the artificial knee joint research progress as follows:

[0004] 20世纪40年代Campbell等首先设计了一种金属假体,由于疗效差未能推广。 [0004] the 1940s Campbell and other first designed a metal prosthesis, due to the poor efficacy failure to promote.

[0005] 20世纪50年代Wallidus等设计了绞链式限制性膝关节假体,因具备自身稳定性, 近期疗效较好,但远期松动率高。 [0005] 1950 Wallidus and other restrictive designed hinged knee prosthesis, due to have its own stability, good short-term effect, but long-term loosening rate.

[0006] 20世纪6年代Gimston发明了多心型假体后,现代人工膝关节的历史真正开始。 After the [0006] 6 years of the 20th century, the invention of suspicious Gimston prosthesis, history of modern artificial knee really started.

[0007] 20世纪70代发明了全髁型假体,疗效十分明显,应用广泛,已经成为衡量其他各种表面型人工全膝关节假体的“标准”。 [0007] 1970 invented the whole generation of condylar prosthesis, the effect is very obvious, widely used, it has become a measure other types of surface-type artificial total knee prosthesis "standard."

[0008] 20世纪80年代我国开始人工膝关节置换手术。 [0008] 1980s, China began artificial knee replacement surgery.

[0009] 几十年来,随着关节假体材料设计和安装技术更加完美,手术操作技术、手术器械、麻醉技术、无菌技术的现代化,人工关节的手术效果得到大大提高。 [0009] For decades, along with the joint prosthesis more perfect material design and installation techniques, surgical technique, surgical instruments, anesthesia, sterile modern technology, the effect of the artificial joint surgery greatly improved. 现在人工膝关节置换手术术已经成为国际公认的处理严重关节疾病的最有效和最可靠的方法。 Now artificial knee joint replacement surgery technique has become internationally recognized as the most effective and reliable way to deal with severe joint disease. 在全球范围内,每年有超过百万的病人接受人工关节技术,成功率达90%以上。 Worldwide, each year more than one million patients received artificial joint technology, the success rate of 90%. 我国从20世纪70年代开始了人工膝关节的研制和临床应用.随着医疗技术和人们生活水平的提高,人们对人工膝关节置换技术有了较深的认识,在临床上也得到了广泛的应用。 China from the 1970s began the development and clinical application of artificial knee joint. As medical technology and people's living standards improve, people knee replacement technology has gained a better understanding, but also in clinical been widely application.

[0010] 经过几代人们的努力改进,目前的人工膝关节以比较成熟,它主要由股骨假体、聚乙烯垫片和胫骨假体(由上到下)组成,如图1所示。 [0010] After several generations of people's efforts to improve the current artificial knee joint to more mature, it mainly consists of a femoral prosthesis, the polyethylene insert and tibial (from top to bottom), as shown in Fig. 股骨假体和胫骨假体分别靠骨水泥与股骨和胫骨牢固结合,而两个假体之间的聚乙烯垫片的功能就是减轻假体的摩擦并最终决定人工膝关节的使用寿命。 Femoral prosthesis and the tibial prosthesis on the bone cement are the femoral and tibial strong bond between the gasket and the two polyethylene prostheses function is to reduce the friction of the prosthesis and the final decision on the life of an artificial knee joint.

[0011] 从以上的介绍可以看出,影响人工膝关节使用寿命的因素主要是关节的磨损和松动,而磨损所产生的微粒可以引起假体周围的组织反应,是导致假体松动的主要原因。 [0011] As can be seen from the above description, affect the service life of the artificial knee joint is the main factor in wear and loose, but wear particles generated can cause tissue reactions around the prosthesis, is the main cause of loosening . 由此看来,如果能减少膝关节假体膝关节之间的磨损率则会大大地延长膝关节的使用寿命。 Seen in this light, if we can reduce the wear rate between the knee prosthetic knee will greatly extend the life of the knee. 长期以来,就如何解决人工膝关节的磨损问题,科学家们进行了很多探索。 For a long time, on how to solve the problem of wear artificial knee joint, scientists have done a lot to explore. 如,不断改进假体表面处理工艺降低摩擦力;改变金属合金的材质增加抗磨性;引用耐磨材料如陶瓷等;加用高分子耐磨垫片如聚乙烯以及假体之间用润滑液填充等等。 E.g., continuous improvement of surface treatment prosthesis reduce friction; change material of the metal alloy to increase wear resistance; cited wear-resistant materials such as ceramics and the like; plus resistant polymer such as a lubricating fluid between the pad and the polyethylene prosthesis filling and so on. 以上方法都不同程度的降低了人工膝关节的摩擦力,增加了其耐磨性能,大大延长了人工膝关节的使用寿命。 The above method are different degrees of reduced friction artificial knee joint, increased wear resistance, greatly extending the life of an artificial knee joint. 但由于他们存在一些客观上的局限性,使得人工膝关节使用的总体情况并不理想。 However, due to some limitations on their objective, making the overall use of the artificial knee joint is not ideal. 目前高质量的人工膝关节使用寿命仍然较短,从10年到20年不等,平均15年左右。 At present high-quality artificial knee still life is short, ranging from 10 years to 20 years, an average of 15 years.

[0012] 电磁悬浮技术是利用高频电磁场在金属表面产生的涡流来实现对金属球的悬浮。 [0012] electromagnetic levitation techniques using a high frequency electromagnetic field generated eddy current on the metal surface to achieve a suspension of the metal balls. 磁悬浮技术已使用在列车上,利用磁铁“同性相斥,异性相吸”的原理,让磁铁具有抗拒地心引力的能力,使车体完全脱离轨道,悬浮在距离轨道约一厘米处,腾空行驶,创造了近乎“零高度”的飞行奇迹。 Maglev technology has been used on the train, using the principle of "same-sex repulsion, opposites attract," the magnet, so that magnets have the ability to resist gravity, so that the body is completely out of orbit, suspended at a distance of about one centimeter track, vacated travel , creating a sort of "zero height" flight miracle. 目前世界上有三种类型的磁悬浮。 There are currently three types of maglev in the world. 一是以德国为代表的常导电式磁悬浮,二是以日本为代表的超导电动磁悬浮,这两种磁悬浮都需要用电力来产生磁悬浮动力。 First, as the representative of Germany often conductive type magnetic levitation, the second is the representative of Japan for the superconducting electric magnetic levitation, both of maglev need to use electricity to generate the magnetic levitation power. 而第三种,就是我国的永磁悬浮,它利用特殊的永磁材料,不需要任何其他动力支持。 And third, it is the country's permanent maglev, which uses a special permanent magnet materials, do not need any other power support. 目前, 磁悬浮技术不但应用于列车,在工业上人们已经发明了低摩擦力磁悬浮轴承,在医学上磁悬浮人工心脏也已问世,所以将磁悬浮技术应用于人工膝关节是完全可能的。 Currently, magnetic levitation technology applies not only to train people in the industry have invented a low-friction magnetic bearing, magnetic levitation artificial heart has come out in medicine, so the magnetic levitation technology in artificial knee joint is entirely possible. 目前并没有将磁悬浮技术应用于人工膝关节的相关报道和研究。 There is no maglev technology will be applied to the relevant reports and studies of the artificial knee joint.

发明内容 SUMMARY

[0013] 针对上述现有技术,本发明提供了一种磁悬浮人工膝关节,本发明利用磁悬浮技术,避免或降低股骨假体与胫骨假体之间的接触,消除假体之间的摩擦,是一种无摩擦或低摩擦的长寿命人工膝关节。 [0013] For the above-described prior art, the present invention provides a magnetic levitation artificial knee joint, the present invention utilizes a magnetic levitation technology, to avoid or reduce contact between the femoral component and the tibial prosthesis, eliminating friction between the prosthesis is a non-friction or low friction and long life of an artificial knee joint.

[0014] 本发明是通过以下技术方案实现: [0014] The present invention is achieved by the following technical solution:

[0015] 一种磁悬浮人工膝关节,包括股骨假体和胫骨假体,其中,股骨假体上设有连接槽,胫骨假体上设有连接柱,股骨假体和胫骨假体通过连接柱和连接槽形成的半铰链结构上下连接;股骨假体和胫骨假体上均设有两排镶嵌孔,镶嵌孔内镶嵌有磁钢;股骨假体上的磁钢下端的极性与胫骨假体上的磁钢上端的极性相同,保证其同性相斥。 [0015] A magnetic levitation artificial knee joint includes a femoral prosthesis and the tibial prosthesis, wherein the connection groove is provided on the femoral prosthesis provided with coupling studs on the tibial prosthesis, the femoral prosthesis and the tibial prosthesis, and by connecting posts semi hinge connection groove formed in the upper and lower connector; femoral prosthesis and the tibial prosthesis has two rows of the insertion hole, the hole inlay inlaid with magnet; polarity magnet and the lower end of the tibial prosthesis on the femoral prosthesis the upper end of the magnet of the same polarity, ensure sex repulsion.

[0016] 所述镶嵌孔呈圆筒型,磁钢呈圆柱型。 The [0016] insertion hole cylindrical shape, and cylindrical magnets.

[0017] 应用时,在本发明的磁悬浮人工膝关节表面覆盖上光滑耐磨的表层材料,然后植入人体即可。 [0017] When applied, the magnetic levitation artificial knee joint of the present invention covers the surface of a smooth wear-resistant surface layer material, and can be implanted in the human body.

[0018] 本发明利用磁悬浮技术使得股骨假体和胫骨假体之间不直接接触,消除了假体之间的摩擦,从而使得其使用寿命大大提高。 [0018] The present invention uses magnetic levitation technology that does not directly contact, to eliminate the friction between the prosthesis, so that it greatly increased the life between the femoral prosthesis and the tibial prosthesis.

[0019] 或许,人们会担心:带有强磁场的假体植入人体后会会对人体带来危害,但本发明的发明认为为其是可行的,理由如下: [0019] Perhaps people will worry: the prosthesis implanted in the body with a strong magnetic field would have brought harm to the human body, but the present invention is considered to be feasible for the following reasons:

[0020] ①磁场广泛存在于自然界。 [0020] ① magnetic field is widely distributed in nature. 我们居住的地球本身就是具有N、S两个极的大磁体, 它的磁场不但没有影响生物的生长,反而使它成为了目前所知宇宙中唯一的生命孵化场和生物乐园。 World we live in itself has a N, S poles of two large magnet, its magnetic field not only did not affect the growth of organisms, but it has become now known only life in the universe hatchery and biological paradise. 正是由于它的磁场保护,才避免了来自太阳的大量电离辐射,使生长于它上面的生物得以生长和繁殖,而且它的磁场还是许多动物定向、飞行和游走的良好工具。 It is because of its magnetic field protection only to avoid a large number of ionizing radiation from the sun, so that biological growth on top of it to grow and multiply, and its magnetic field is oriented in many animals, and good tools walk of flight. 我国古人正是发现和应用了地球磁场才发明了指南针,从而对世界的航海技术做出了巨大贡献。 It is found in our ancient Earth's magnetic field is applied and before the invention of the compass, thus sailing the world of technology has made tremendous contributions.

[0021] ②磁场在医学上广泛应用于疾病的诊断和治疗。 [0021] ② magnetic fields in medicine is widely used in the diagnosis and treatment of disease. 医学上常用的磁共振扫描仪就是具有非常强磁场的仪器。 Medicine commonly used magnetic resonance scanner is an instrument very strong magnetic field. 它的磁场强度可以达到3.0特斯拉。 It can reach 3.0 Tesla magnetic field strength. 该装置应用于临床诊断,可以清晰的发现人体组织中的一场病变。 The device used in clinical diagnosis, can clearly find a diseased human tissues. 它的应用不但不会损害人体,反而为人们的健康做出了很大贡献。 Its application not only will not harm the human body, but made a great contribution to people's health. [0022] 另外,磁场在疾病的治疗中也有不凡的表现,人们发现磁场对人体组织的生长愈合有很好的促进作用,从而发明了磁疗仪,用于骨折可以促进骨折的愈合;用于软组织损伤可以起到消肿止痛、舒筋活血的作用。 [0022] Further, the magnetic field in the treatment of diseases have extraordinary performance, it was found that the magnetic field on the growth of human tissue has a good role in promoting healing, thus invented magnetic device, it can be used to promote fracture healing fracture; for soft tissue injury can play a swelling and pain, medicinal effect.

[0023] ③世界上已有很多条磁悬浮列车在运行,它们本身带有巨大的磁场,实践证明它不会对人体产生损害。 [0023] ③ in the world have a lot of maglev train running themselves with huge magnetic field, it proved that it will not cause harm to humans.

[0024] ④磁悬浮人工心脏已经问世,说明磁场植入人体已有先例。 [0024] ④ maglev artificial heart has been published, indicating that there is precedent implanted magnetic field. 况且人工心脏是植入人体的核心部位,旁证了植入非核心部位的磁悬浮人工膝关节的可行性。 Moreover, the artificial heart is implanted in the core parts of the body, circumstantial evidence the feasibility of implantation of non-core parts of the magnetic levitation artificial knee joint.

[0025] 综上,本发明的磁悬浮人工膝关节可行性高,效果好,建议临床推广使用。 [0025] In summary, the present invention is an artificial knee joint magnetic levitation high feasibility, good results, we recommend clinical use.

附图说明 BRIEF DESCRIPTION

[0026] 图1为现有技术中的人工膝关节示意图(照片); [0026] FIG. 1 is a schematic view of an artificial knee joint (photograph) of the prior art;

[0027] 图2为本发明的结构示意图; [0027] FIG. 2 is a schematic structural diagram of the invention;

[0028] 图3为本发明的股骨假体的结构示意图; Femoral prosthesis structure [0028] FIG. 3 is a schematic view of the present disclosure;

[0029] 图4为本发明的胫骨假体的结构示意图; The tibial prosthesis structure [0029] FIG. 4 is a schematic view of the invention;

[0030] 图5为本发明的结构示意图(照片); [0030] Fig 5 a schematic structural diagram (photograph) of the present invention;

[0031] 图6为本发明的股骨假体的结构示意图(照片); Schematic structural view of the femoral prosthesis [0031] FIG. 6 of the present invention (photo);

[0032] 图7为本发明的胫骨假体的结构示意图(照片); Schematic structural diagram of the tibial prosthesis [0032] FIG. 7 of the present invention (photo);

[0033] 图8为本发明的使用效果图(照片); [0033] FIG. 8 is used renderings (photograph) of the invention;

[0034] 图9为图8的后视图(照片)。 [0034] FIG. 9 is a rear view (photograph) of FIG. 8.

[0035] 其中,1、股骨假体;2、胫骨假体;3、连接槽;4、连接柱;5、镶嵌孔;6、磁钢。 [0035] wherein a, femoral prosthesis; 2, tibial prosthesis; 3, connection groove; 4, connecting post; 5, insertion hole; 6, magnet. 具体实施方式 Detailed ways

[0036] 下面结合附图对本发明作进一步的说明。 [0036] The following drawings further illustrate the present invention in combination.

[0037] —种磁悬浮人工膝关节,包括股骨假体1和胫骨假体2,如图2、图3、图4所示,其中,股骨假体1上设有连接槽3,胫骨假体2上设有连接柱4,股骨假体1和胫骨假体2通过连接柱3和连接槽4形成的半铰链结构上下连接;股骨假体1和胫骨假体2上均设有两排镶嵌孔5,镶嵌孔5内镶嵌有磁钢6 ;股骨假体1上的磁钢6下端的极性与胫骨假体2上的磁钢6上端的极性相同,保证其同性相斥。 [0037] - species levitation artificial knee joint comprising a femoral component and a tibial component 2, 2, 3, as shown, wherein the connection groove is provided on the femoral component 1 4 3, tibial prosthesis 2 provided with connecting posts 4, two half-hinge structure 4 formed by the connecting post 3 and the connecting groove femoral component 1 and tibial vertical connection; 2 have a femoral component 1 and tibial two rows setting hole 5 inlaid magnet 6 within the insertion hole 5; 6 the upper end of the same polarity as the magnet on the magnet 6 the tibial prosthesis on the lower end of the femoral prosthesis 12 polarities repel each guaranteed.

[0038] 所述镶嵌孔5呈圆筒型,磁钢6呈圆柱型。 [0038] The insertion hole 5 has a cylindrical type magnet 6 and cylindrical.

[0039] 应用时,在本发明的磁悬浮人工膝关节表面覆盖上光滑耐磨的表层材料,然后植入人体即可。 [0039] When applied, the magnetic levitation artificial knee joint of the present invention covers the surface of a smooth wear-resistant surface layer material, and can be implanted in the human body. 具体应用的照片如图5、图6、图7、图8、图9所示。 Photo particular application 5, 6, 7, as shown in FIG. 8, FIG. 9.

Claims (2)

  1. 一种磁悬浮人工膝关节,包括股骨假体和胫骨假体,其特征在于:所述股骨假体上设有连接槽,胫骨假体上设有连接柱,股骨假体和胫骨假体通过连接柱和连接槽形成的半铰链结构上下连接;股骨假体和胫骨假体上均设有两排镶嵌孔,镶嵌孔内镶嵌有磁钢;股骨假体上的磁钢下端的极性与胫骨假体上的磁钢上端的极性相同。 Magnetic Levitation artificial knee joint includes a femoral prosthesis and the tibial prosthesis, comprising: connection groove is provided on the femoral prosthesis provided with coupling studs on the tibial prosthesis, the femoral prosthesis and the tibial prosthesis by connecting posts hinge half structure and connecting grooves formed in the upper and lower connector; femoral prosthesis and the tibial prosthesis has two rows of the insertion hole, the hole inlay inlaid with magnet; polar magnet and the lower end of the tibial prosthesis on the femoral prosthesis the same polarity on the upper end of the magnet.
  2. 2.根据权利要求1所述的一种磁悬浮人工膝关节,其特征在于:所述镶嵌孔呈圆筒型, 磁钢呈圆柱型。 A magnetic levitation artificial knee joint according to claim 1, wherein: said insertion hole has a cylindrical type, and cylindrical magnets.
CN 201010559938 2010-11-25 2010-11-25 Magnetic suspension artificial knee joint CN101972178A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4888021A (en) * 1988-02-02 1989-12-19 Joint Medical Products Corporation Knee and patellar prosthesis
WO1997030661A1 (en) * 1996-02-21 1997-08-28 Smith & Nephew Inc. Trial wedges with magnetic attachments
WO2002067811A2 (en) * 2001-01-16 2002-09-06 Hyde Edward R Jr Prostheses and instrumentation for joint replacement and repair
WO2006121652A2 (en) * 2005-05-06 2006-11-16 Hyde Edward Jr Magnetic vector control system for joints
CN201481594U (en) * 2009-07-04 2010-05-26 戴闽 Maglev artificial joints
CN201870774U (en) * 2010-11-25 2011-06-22 高若云 Magnetic suspension artificial knee joint

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4888021A (en) * 1988-02-02 1989-12-19 Joint Medical Products Corporation Knee and patellar prosthesis
WO1997030661A1 (en) * 1996-02-21 1997-08-28 Smith & Nephew Inc. Trial wedges with magnetic attachments
WO2002067811A2 (en) * 2001-01-16 2002-09-06 Hyde Edward R Jr Prostheses and instrumentation for joint replacement and repair
WO2006121652A2 (en) * 2005-05-06 2006-11-16 Hyde Edward Jr Magnetic vector control system for joints
CN201481594U (en) * 2009-07-04 2010-05-26 戴闽 Maglev artificial joints
CN201870774U (en) * 2010-11-25 2011-06-22 高若云 Magnetic suspension artificial knee joint

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