CN103917195A - 改进的硅核植入物 - Google Patents

改进的硅核植入物 Download PDF

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CN103917195A
CN103917195A CN201280050855.4A CN201280050855A CN103917195A CN 103917195 A CN103917195 A CN 103917195A CN 201280050855 A CN201280050855 A CN 201280050855A CN 103917195 A CN103917195 A CN 103917195A
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vertebra
inner core
extension
renucleation
thing
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CN103917195B (zh
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A·托尼尔
G·维亚尔特
J·Y·勒罗伊
A·比尔隆
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Clariance SAS
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Abstract

根据本发明的核植入物由以下组成：布置在中间椎骨盘（Di）的核诊断治疗术后获得的髓核空间（Es）内的内芯（10），以及至少一个穿入对应椎骨（Va、Vb）体内形成的至少一个通道（Co）的延伸部（11），通过组成所述核植入物的粘弹性材料在所述脊骨的多孔骨头内的扩散或迁移，来加强和确保核植入物（1）和脊椎（Va）和/或（Vb）的骨体之间的连接。

Description

改进的硅核植入物
技术领域
本发明涉及硅树脂核植入物，其布置在脊椎段的上脊椎和下脊椎之间，构成中间脊椎支承装置，其吸收冲击和确保由所述脊椎形成的功能单元的可动性。
背景技术
核的退化通常是导致椎间盘和因此连接面退化的第一因素。该种退化可造成疝，且该问题通常用核子诊断治疗术进行治疗。
然而，尽管疼痛在术后立即消失了，但椎间盘高度的丢失和连续脊椎段的过度运动却逐渐地加重了脊椎段的退化，疼痛再次出现且有时造成邻近脊椎级的退化。
尽早对如此病人作核的更换，可以是对椎间盘作全部的更换或脊椎段的融合的有效的替代方法。
事实上，用准正常运动性来维持足够的中间脊椎骨高度，可对该脊椎段赋予一定的稳定度，由此，减慢或甚至停止退化现象。
从归属于本申请人的国际专利申请WO2009/130417中可了解到具有至少一个填充元件的核植入物，该填充元件具有至少一个连续的细丝，在中间脊椎盘作核子诊断治疗术之后，将连续的细丝布置在所获得的髓核空间内，连续细丝随从环形的外形，它的螺旋形堆叠界限了中心的内部空间，该内部空间填充诸如凝胶或膏体的产品、纤维基的产品，或可注入的粘弹性材料。
应该指出的是，该类型的植入物具有如下的问题：由于植入物不连接到或附连到对应脊椎骨体上，在脊椎段的所述椎骨反复延伸弯曲运动过程中，植入物逐渐地朝向骨髓通道迁移。
发明内容
根据本发明的核植入物目标在于，通过减少植入物所包括的部件数量，并确保植入物和相连的脊椎段的椎骨体之间稳定和有效连接，以此来改进核植入物。
根据本发明的核植入物由以下组成：布置在中间椎骨盘的核诊断治疗术后获得的髓核空间内的内芯，以及至少一个穿透对应椎骨体内形成的至少一个通道的延伸部，通过组成所述核植入物的粘弹性材料在多孔骨头内的扩散或迁移，来加强和确保核植入物和脊椎骨体之间的连接。
根据本发明的核植入物具有包括至少两个延伸部的内芯，两个延伸部延伸在所述内芯中心的任一侧上。
根据本发明的核植入物具有内芯和延伸部，它们由流体或有机硅氧烷组成中获得，并在环境温度下自聚合物化成为永久性弹性硅树脂。
根据本发明的核植入物具有内芯和延伸部，它们由聚二甲硅氧烷基组成成分中获得。
根据本发明的核植入物具有内芯和延伸部，它们由含有铂催化剂的成分中获得。
根据本发明的核植入物具有内芯和延伸部，它们由含有催化剂的成分中获得，该催化剂具有氢-功能化的硅氧烷和乙烯基-功能化的硅氧烷的基础。
以下参照附图（作为非限制性实例提供）所作的描述，将能够更好地理解本发明、本发明的特征以及所获得的优点。
附图说明
图1是分解的立体图，示出根据本发明的核植入物，其内芯通过注入硅树脂基材料来获得。
图2是剖视图，示出根据本发明的核植入物，其内芯通过注入硅树脂基材料来获得。
图3是立体图，示意地示出核植入物，例如，核植入物的内芯具有至少两个内芯，它们延伸在根据本发明的所述内芯的中心的任一侧上。
具体实施方式
图1和2示出了脊柱的脊椎段Sr，它的上面脊椎Va和下面脊椎Vb中的至少一个将使用钻削装置（未示出）被刺穿，让至少一个骨头通道具有弧形外形Co，从而到达损坏的中间椎盘Di的上表面。
例如，钻削具有弧形外形的上面脊椎Va能够使用经骨的和经皮肤的外科方法来到达中间脊椎盘Di的核，然后，便可在损坏的中间脊椎盘上实施必要的手术，直到在“纤维环”AF的中心处获得髓核空间Es为止。
例如，使用属于本申请人的专利申请FR11/00199中所描述和保护的钻削装置，可实施对上面脊椎Va和/或具有弧形外形的下面脊椎Vb的钻削。
当获得了具有弧形外形的骨头通道Co时，就可使用注入装置（未示出）进行粘弹性材料的插入，该材料在环境温度下可自聚合物化，便可在髓核空间Es内产生核植入物1。
核植入物1由硅树脂或可在环境温度下自聚合物化的粘弹性材料制成。核植入物1由具有至少一个延伸部11的内芯10组成，其穿入在对应脊椎体内形成的具有弧形的通道Co内。
每个从内芯10延伸的延伸部11能够提供所述内芯和对应脊椎Va和/或Vb的骨头体之间的连接，防止出现核植入物1相对于“纤维环”AF和所述脊椎迁移的任何可能性。
通过粘弹性材料的扩散或迁移，该粘弹性材料在环境温度下可在对应脊椎Va、Vb的所述脊椎骨的多孔骨头内自聚合物化，使得每个延伸部11能够加强和确保核植入物1和脊椎Va/Vb的骨头体之间的连接。
事实上，延伸部11产生的连接，能够将核植入物1保持在脊椎Va和/或Vb之间的合适位置内，由此，在所述脊椎段Sr的所述脊椎Va和/或Vb反复的延伸弯曲运动过程中，可防止核植入物1朝向骨髓通道逐渐迁移。
核植入物1的每个延伸部11还能够阻碍对应的弧形骨头通道Co，以防止异物在中间脊椎盘Di内迁移的任何可能性。
由内芯10和延伸部11组成的核植入物1可从流体或有机硅氧烷基的膏体成分中获得，它们在环境温度下可自聚合物化为永久弹性的硅树脂。
由内芯10和延伸部11组成的核植入物1可从流体或聚二甲硅氧烷型的有机硅氧烷基的成分中获得，它们在环境温度下可自聚合物化为永久弹性的硅树脂。
由内芯10和延伸部11组成的核植入物1可从流体或有机硅氧烷基的膏体成分中获得，该成分可以是聚二甲硅氧烷型，它们在环境温度下可自聚合物化为永久弹性的硅树脂并含有铂催化剂。
由内芯10和延伸部11组成的核植入物1可从流体或有机硅氧烷基的膏体成分中获得，该成分可以是聚二甲硅氧烷型，它们在环境温度下可自聚合物化为永久弹性的硅树脂并含有铂催化剂，催化剂具有氢-功能化的硅氧烷和乙烯基-功能化的硅氧烷基础。
还必须理解到，前面的描述只是以实例提供的，决不限制本发明的范围，用任何等价的方式来替代实施例中所述的细节，也不会超越本发明的范围。

Claims (6)

1.一种布置在脊椎段（Sr）的上面脊椎（Va）和下面脊椎（Vb）之间的核植入物，其构成中间脊椎支承装置，所述装置吸收冲击并确保由所述脊椎形成的功能单元的可动性，其特征在于，它由以下组成：布置在中间椎骨盘（Di）的核诊断治疗术后获得的髓核空间（Es）内的内芯（10），以及至少一个穿透对应椎骨（Va、Vb）体内形成的至少一个通道（Co）的延伸部（11），通过组成所述核植入物的粘弹性材料在所述脊骨的多孔骨头内的扩散或迁移，来加强和确保核植入物（1）和脊椎（Va）和/或（Vb）的骨体之间的连接。
2.如权利要求1所述的核植入物，其特征在于，所述内芯（10）包括至少两个延伸部（11），两个延伸部延伸在所述内芯中心的任一侧上。
3.如权利要求2所述的核植入物，其特征在于，所述植入物的内芯（10）和延伸部（11）由流体或有机硅氧烷膏体组成中获得，并在环境温度下自聚合物化成为永久性弹性的硅树脂。
4.如权利要求3所述的核植入物，其特征在于，所述植入物的内芯（10）和延伸部（11）由聚二甲硅氧烷基组成成分中获得。
5.如权利要求3和4中任一项所述的核植入物，其特征在于，所述植入物的内芯（10）和延伸部（11）由含有铂催化剂的成分中获得。
6.如权利要求2和3中任一项所述的核植入物，其特征在于，所述植入物的内芯（10）和延伸部（11）由含有催化剂的成分中获得，所述催化剂具有氢-功能化的硅氧烷和乙烯基-功能化的硅氧烷的基础。
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