CN104905832A - 压力可调整的固定钉和利用可调整的压力进行固定的方法 - Google Patents
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Abstract
压力自动调节的固定钉,包括实质上U形的固定钉本体和挤压设备。该固定钉本体具有桥和从桥以一定角度伸出的两条腿。每条腿具有与桥整体形成的底基末端和可变形的顶部,其限定构型为刺穿待固定的材料的固定点。挤压设备至少部分地设置于腿之间,并且具有偏压部分和挤压阻滞器,该偏压部分带有可活动地设置在两腿之间的挤压表面。挤压阻滞器与桥和挤压表面连接,并且构型为利用压力抵抗挤压表面朝向桥的运动。
Description
本发明专利申请是国际申请号为PCT/US2008/050829,国际申请日为2008年1月11日,进入中国国家阶段的申请号为200880001983.3,名称为“压力可调整的固定钉和利用可调整的压力进行固定的方法”的发明专利申请的分案申请。
技术领域
本发明涉及紧固固定钉的领域,尤其是,固定钉和能够将单个或多个固定钉施加到材料的工具以及由此而来的工艺方法。更特别的是,本发明涉及能够向待固定的材料施加载荷力的固定钉和对固定材料的方法进行的改进。该设备尤其是能应用于医学领域,用于在手术过程中固定组织,无论手术是开放性(open)、内窥镜检查或腹腔镜检查。
背景技术
典型地,常规的固定钉是U形的并且需要固定钉卡筒(cartridge)和砧座以将固定钉紧固到材料上。U形的固定钉可以相对地看作为矩形,因为从钉桥上伸出的腿的角度为锐角。在固定钉装置的作用时,固定钉的腿向前推送因此它们可以在缝隙或开口的两面穿透材料。由于固定钉成形机再向前送,固定钉的腿环绕砧座弯曲,使得腿的尖头沿着朝向彼此的弧形的路径向前,因此固定钉最终作为一般的矩形的形状,从而挤压已经在固定钉的腿之间俘获的材料,这在外科应用中就是组织。这样的材料的挤压是通过关闭实行的机械作用。依靠断口或开口的长度,一系列的固定钉可以沿着它的长度递送,这可以在手术过程中确保血液封闭而不会渗漏。
因为固定钉具有两条腿刺穿材料,当和相对的砧座一同使用时,它们很适合于将两层或多层材料紧固在一起。无论是在办公室或者手术过程中使用,大部分的固定钉1具有类似的形状-桥2连接两条相对平行的腿4,该腿大致相对桥2成直角设置,依靠固定钉的材质,其形成呈直角的U形的形状。在手术的固定钉设备中,有益的是在腿4在稍微向外的位置开始来帮助在卡筒内的固定钉紧固。在图1中图示的固定钉表示的是传统的手术上的固定钉。上述固定钉抵靠砧座挤压以向内弯曲腿4的尖头。为了充分实现手术目的,最后固定的结构具有的固定范围是从"最小"可接受的方位至"最大"可接受的方位。该"最小"可接受的固定钉范围是这样的位置,其中通过各个腿4的尖头限定的切线与平行于桥2的线成负的角度且接触两条腿4的下端部分。该"最大"可接受的固定钉的范围是这样的位置,其中腿4弯曲成类似于字母"B"的形状。
图1的固定钉1以这样的方位显示,其中腿4的尖头通过砧座稍微弯曲,接近朝向最后固定的形状。(该稍微弯曲的方位也根据此后图示的固定钉表示出来)。上述固定钉的稍微弯曲的腿4具有三个不同的部分:
连接部分6(在此腿4连接到桥2);
中间部分8(在此固定钉是弯曲的;当然这也可能是连接部分6因为各种紧固的目的而弯曲);和
刺穿部分10(用于从待紧固的材料刺穿;该部分也是在紧固的时候弯曲)。
存在有许多固定钉设备用以配置这样的固定钉。一些手术上的固定钉工具已经在Knodel等人的美国专利No.5,465,895和Green等人的美国专利Nos.6,644,532和6,250,532中描述了。当固定钉1因为紧固而弯曲时,由弯曲的固定钉1的内部形成的多边形限定包围或中央区域14。当开始紧固时,通过固定钉1紧固的材料存在于中央区域14中且在其中被挤压。当最后的固定钉的定位为B形时,就有可能形成两个区域,其中组织被保持和挤压。
与传统的固定钉相关联的一个公共的特征是其没有调节挤压力的控制方法,该挤压力是通过在待固定的材料上的固定钉施加的。由于物品例如纸和纸板可以经受各种各样的订书机的挤压力而不会破裂或刺破,而活体组织,例如在手术过程中待固定的组织,具有挤压力的限制范围,且承受不住超过不会导致组织损伤的范围的上限的力。事实上,用于提供在手术的固定方法中的最佳的固定力的范围是相对小的,并且实质上随着待固定的组织的类型而变化。
而可能为真的是在腿和桥的弯曲点之间的距离(例如参见图1中的跨度12)可以增加以使固定钉向材料施加较小的力,当具有不同程度的硬度、成分和挠性的活体组织为待固定的材料时该特征不会被应用。即使固定钉腿弯曲距离12增加,如果实际上被俘获在固定钉内的是比期待的或多或少或硬或软的组织,施加到被俘获的组织的力不能控制,并且对于组织而言不是最佳的。
当一层、两层或多层组织被固定时,合乎需要的是使组织处于期望的挤压状态,因此可以产生期望的医学上的变化,而不是处于不希望有的足以促使组织坏死的挤压状态。因为没有办法精确地控制放置在固定钉之内的组织,也就可能不能保证组织在最佳的组织压力范围之内被固定,该范围称为OTC范围。所以,完全避免组织坏死是很困难的或不可能的。此外,位于一个固定钉之内的组织与位于邻近的固定钉组织或位于另一个在同一固定过程中发出的固定钉之内的组织是不相同的。因此,当一组或几组固定钉实际上可以在OTC范围内紧固时,很有可能的是许多在同一固定过程中的其他固定钉的紧固超出了OTC的范围。
因此,所需要的是改进的固定钉和改进的固定方法,其允许对固定钉施加到待固定材料的压力的自动控制,由此使得材料的压力保持在期望的OTC的范围之内。由于现有技术中的手术固定工具具有有用性,并且可以成功地应用于多种医学方法,合乎需要的是改善它们的操作方法,使其能够传送可自动地调整传递给组织的压力的固定钉,而不需要额外的机构或者操作。
因此,本发明的目的是提供可调整压力的固定钉和利用可调整压力的固定方法,其克服了上述的目前为止已知的设备和这些一般类型的方法的弊端,并且自动地调整传递给组织的压力。
当固定组织时,体液从组织中压出来。组织的OTC范围是压力范围,其中体液从组织中除去(即干组织),而不会使组织破坏或者坏死。因为组织的体液由于固定钉施加到组织上的压力而流出组织,无论如何,施加到干硬(die)的组织上的压力自然地减少,因为在对应固定钉部分之间的质量变少了。在一些情况下,该减少允许施加到组织的压力退出OTC范围。依照本发明的固定钉每个具有自动调节的、预加力挤压装置,该装置在插入组织时将压力即使在该组织变干之后也保持在OTC压力范围内。
图1的现有技术的固定钉具有的固定范围如图17所示。为了充分满足手术目的,本发明的OTC固定钉的最后的固定结构具有的固定范围例如如图18至20所示。"最小"可接受的固定范围是这样的位置,其中通过各个腿4限定的切线T与平行于桥2的线L成一负角度α。该方位在图17中的固定钉的左半部分显示,仅仅作为澄清的目的。再参见图18至20。"最大"可接受的固定钉范围是这样的位置,其中腿4弯曲180度成类似于字母"B"的形状(参见图17的右半部分图示的示意性的方位),但是,与图17的现有技术的固定范围相比,如下面将要详细阐述的,依照本发明的固定钉的腿4的尖头仅一直达到挤压部分,并且不会超过例如如图20中所示的挤压部分。以这样的方位,腿的固定的尖头不会干扰依照本发明的固定钉给出的OTC设备。
用于依照本发明的固定钉的OTC设备采取多种形式。OTC设备可以与固定钉的腿整体形成且在中央区域突出或者可以连接到固定钉以从中央区域突出。OTC设备可以成正弦曲线的形状,带有位于OTC设备的末端的挤压部分,或者可以具有多个位于固定钉的桥之间的弯曲循环,带有位于OTC设备的末端的挤压部分。弯曲的部分可以是单个或者两个,仅举几个例子而言,两个弯曲可以成循环、不循环、镜象对称。弯曲可以是如图8、9和11所示的双正弦曲线的形状,OTC设备可以完全包含在固定钉的两腿之间,或者可以环绕一条或者两条腿,因此,利用腿作为导向体,例如,滑动导轨。由OTC设备环绕的腿可以是单个或者多个。OTC设备的行程可以是受限的,例如,通过星形垫圈。OTC设备可以为(多个)压力弹簧和(多个)板,利用板在腿上环绕并在其上滑动。OTC设备可以是固定在腿上的挤压性材料。该材料可以成板或者垫块的形状。
发明内容
考虑所提出的前述的和其他的目的,依照本发明,自动调节挤压的固定钉,其包括实质上U形的固定钉本体和挤压设备。本体具有桥和从桥以一定角度伸出的两条腿。每条腿具有与桥整体形成的基底末端和可变形的顶部,该顶部限定固定点,其构型为刺穿待固定的材料。挤压设备至少部分地设置于腿之间,并且具有偏压部分和挤压阻滞器,该偏压部分带有可活动地设置在两腿之间的挤压表面。挤压阻滞器与桥和挤压表面连接,并且构型为利用作用力抵抗挤压表面朝向桥的运动。
考虑本发明的目的,还提供了压力自动调节的固定钉,其包括实质上U形的固定钉,该钉带有内置的挤压设备,该设备能够调节施加到在其中固定的材料的压力,不受发出固定钉的量值的影响。
考虑本发明的目的,还提供了压力自动调节的固定钉,其包括实质上U形的固定钉,该钉带有内置的挤压设备,该设备能够对在其中固定的材料施加实质上恒定的压力,不受发出固定钉的量值的影响。
依照本发明的另一特征,桥实质上为带有末端的杆状物,并且各个腿的基底末端与各自的一个桥的末端整体形成。
依照本发明的另一特征,桥和腿限定了桥-腿平面,并且腿在桥-腿平面内从桥以位于80至100度范围内的角度伸出。
依照本发明的附带的特征,可变形的顶部能够在桥-腿平面内弯曲大约180度。
依照本发明的附带的特征,挤压表面限定两个孔,并且每个腿穿过两个孔中的一个。
依照本发明的又一个特征,挤压阻滞器限定至少一个孔对,挤压表面限定两个孔,并且每个腿穿过所述两个孔中的一个和所述至少一个孔对中的一个。
依照本发明的又一个特征,挤压阻滞器限定多个孔对,挤压表面限定两个孔,并且每个腿穿过所述两个孔中的一个和每个所述多个孔对中的一个。
依照本发明的又一附带的特征,挤压表面与桥间隔一段距离。
依照本发明的又一附带的特征,挤压表面与桥平行。
依照本发明的又一个特征,桥和腿限定挤压轴线,并且挤压表面可动地设置在沿着挤压轴线的腿之间。
依照本发明的又一特征,挤压设备与桥连接。
依照本发明的又一附带的特征,挤压阻滞器将桥连接到挤压表面。
依照本发明的又一附带的特征,桥、腿、挤压阻滞器和挤压表面是一整体。
按照本发明的另一个特征,挤压阻滞器从桥分开并且固定到桥上位于腿之间。
依照本发明的另一个特征,挤压阻滞器至少部分地设置在腿之间。
按照本发明另一个附带的特征,挤压阻滞器设置在桥和挤压表面之间。
依照本发明的另一附带的特征,挤压阻滞器构型为利用预定的抵抗力抵抗挤压表面朝向桥的运动。
依照本发明的另一附带的特征,挤压阻滞器构型为利用预实质上恒定的力抵抗挤压表面朝向桥的运动。
依照本发明的另一附带的特征,挤压阻滞器构型为利用线性递增的力抵抗挤压表面朝向桥的运动。
依照本发明的附带的特征,挤压阻滞器具有抗挤压弹簧刚度,其实质上提供位于预定的挤压范围内的恒定的抗压力。
依照本发明的附带的特征,固定钉本体和挤压设备为生物相容的材料,尤其是至少为钛、钛合金镍钛金属互化物和不锈钢的一种。
依照本发明的又一个特征,挤压表面和腿限定中央挤压地区,其中当顶部变形时将在位于挤压表面和固定点之间设置待挤压的材料,并且,当顶部在固定钉闭合方向变形为中央挤压区域时,偏压部分利用预定的、实质上恒定的力抵抗挤压表面在固定钉闭合方向的运动。
依照本发明的又一特征,当固定点变形时,挤压表面和偏压部分构型为向设置在挤压表面和固定点之间的材料提供预定的、实质上恒定的偏压力。
依照本发明的又一附带的特征,当固定点朝向彼此变形时,设置在挤压表面和固定点之间的材料在固定点和挤压表面之间被挤压,并且挤压阻滞器对在预定范围内的材料保持实质上恒定的压力,独立于固定点和挤压表面之间的挤压程度。
依照本发明的又一附带的特征,挤压阻滞器为正弦曲线的形状。
按照本发明的另一个特征,挤压阻滞器的为位于桥-腿平面内的正弦曲线。
按照本发明的又一个的特征,挤压阻滞器为位于桥-腿平面内的双正弦曲线。
按照本发明的又一附带的特征,挤压阻滞器为单正弦曲线状的本体。
依照本发明的又一附带的特征,挤压阻滞器具有第一部分和第二部分,并且第二部分为第一部分的镜像。
依照本发明的另一个特征,挤压表面是C形横梁,其限定两个孔,挤压阻滞器为下端连接到挤压表面的锥形盘簧,并且每条腿可滑动地放置在两个孔的各自的一个内。
依照本发明的另一个特征,挤压表面是C形横梁,其限定两个孔,挤压阻滞器为一对弹簧,它们每个围绕各自的一条腿的一部分,并且它们每个具有连接到挤压表面的下端,并且每条腿可滑动地放置在两个孔的各自的一个内。
依照本发明的另一附带的个特征,挤压表面是C形横梁,其限定两个孔,挤压阻滞器为一对弹簧,它们每个具有连接到桥的上端和连接到挤压表面的下端,并且每条腿可滑动地放置在两个孔的各自的一个内。
依照本发明的相应的特征,偏压部分是挤压性材料的衬垫,其限定两个孔,并且每条腿可滑动地放置在两个孔的各自的一个内。
尽管本发明在此已经举例说明和叙述了作为实施例的压力可调整的固定钉和利用可调整的压力进行固定的方法,然而,它并不意味着限制在具体的实施例中,因为在不脱离本发明的实质的情况下可以在此进行各种修改和结构性变化,这都落在权利要求的相当的范围之内。此外,本发明的众所周知的示意性的实施例的基础不会被详细描述或者将会被省略,这就不会使得本发明的相关的细节难以理解。
其他的被认为是本发明的特有的特征阐述在附带的权利要求中。按要求,在此将公开本发明的详细的实施例;无论如何,需要理解的是公开的实施例仅作为本发明的示意性的表述,它们可以包含各种不同的形式。因此,在此公开的特殊的结构性和功能性的细节不能解释为限制,而仅仅只能作为权利要求的基础和作为教导本领域普通技术人员的基础,从而实际上在任何适当的具体的结构上多样地应用本发明。此外,在此使用的术语和字句并不意味着限制;而是为了提供本发明的可以理解的描述。由于本说明书最后确定了权利要求,其限定了本发明认为是新颖的特征,确信的是从下面的连同附图的描述的考虑中可以对本发明有更好的理解。附图的图形不是依据比例绘制的。
在本发明的公开和描述之前,需要理解的是在此使用的术语仅仅是为了描述特定的实施例的目的,并不意味着对本发明的限制。在此使用的术语"一"可以定义为一个或者多于一个。在此使用的术语"多个"可以定义为两个或者多于两个。在此使用的术语"另一个"可以定义为至少是第二个或者更多个。在此使用的术语"包含"和/或"具有"可以定义为包括(即开放式的限定语言)。在此使用的术语"连接的"可以定义为相关的,但是不一定必须是直接地,也不一定必须是机械地。
在此使用的术语"大约"或"近似"不管是否明确地指明,应用于所有的数值。这些术语通常指代一定范围的数值,而本领域技术人员会考虑到其相当于叙述的值(即具有相等的作用或结果)。在许多情况下这些术语可以包括围绕最接近的有效数的数值。
附图说明
从下面的具体实施方式的描述中,本发明的实施例的优点将变得显而易见,其中的描述认为是与附图结合的,其中:
图1是现有技术的手术上的固定钉的示意性的从上方看的侧面的透视图;
图2是依照本发明的OTC固定钉的第一示意性的实施例的从上方看的侧面的透视图;
图3是依照本发明的OTC固定钉的第二示意性的实施例的从上方看的侧面的透视图;
图4是依照本发明的OTC固定钉的第三示意性的实施例的从上方看的侧面的透视图;
图5是依照本发明的OTC固定钉的第四示意性的实施例的从上方看的侧面的透视图;
图6是依照本发明的OTC固定钉的第五示意性的实施例的从上方看的侧面的透视图;
图7是依照本发明的OTC固定钉的第六示意性的实施例的从上方看的侧面的透视图;
图8是依照本发明的OTC固定钉的第七示意性的实施例的从上方看的侧面的透视图;
图9是依照本发明的OTC固定钉的第八示意性的实施例的从上方看的侧面的透视图;
图10是依照本发明的OTC固定钉的第九示意性的实施例的从上方看的侧面的透视图;
图11是依照本发明的OTC固定钉的第十示意性的实施例的从上方看的侧面的透视图;
图11A是图11的OTC固定钉的从下方看的片段的放大的侧面的透视图;
图12是依照本发明的OTC固定钉的第十一个示意性的实施例的从上方看的侧面的透视图;
图13是依照本发明的OTC固定钉的第十二个示意性的实施例的从上方看的侧面的透视图;
图14是依照本发明的OTC固定钉的第十三个示意性的实施例的从上方看的侧面的透视图;
图15是依照本发明的OTC固定钉的第十四个示意性的实施例的从上方看的侧面的透视图;
图16是依照本发明的OTC固定钉的第十五个示意性的实施例的从上方看的侧面的透视图;
图17是图1的现有技术的手术上的固定钉的侧面的正视图,其中固定钉的尖头图示了示意性的固定的范围;
图18是图6的固定钉的侧面的正视图,其中固定钉的尖头在示意性的固定范围的第一中间位置;
图19是图6的固定钉的侧面的正视图,其中固定钉的尖头在示意性的固定范围的第二中间位置;和
图20是图6的固定钉的侧面的正视图,其中固定钉的尖头在示意性的固定范围的第三中间位置。
具体实施方式
在此将描述本发明的多个实施例。在多个不同的实施例中,有些特征是类似的。因此为了避免重复,在某些情况下将不会对这些类似的特征作重复的描述。然而,需要理解的是,因此,对首先出现的相应于在后叙述的特征的描述和每个特征的各自的描述在此是合并为一体的,不带有上述的重复。
现在详细地参见附图中的标记,尤其是其中的图2,它显示了依照本发明的自动最佳组织压力(OTC)固定钉20的第一个示意性的实施例。在该第一实施例中,桥21具有中央桥部分22和实质上增加桥21的总长的延伸部分23--与图1的固定钉1的桥2相比。由于上部的桥部分22转换成延伸部分23,其弯曲成曲线并且位于固定钉20的中央区域24之内。延伸部分23可以是任何形状或者为任何材料,只要它能在挤压部分25传递预定的压力给组织,并且只要它允许吸收(在位于挤压部分25和上部桥部分22之间的区域之内)超过该预定力的偏移。因此,该形状可以是梯形的、三角形的、正弦曲线的或任何其他的结构。在图2中显示了相对的正弦曲线的示意性的实施例。这些曲线在图示的实施例中运行两个周期,然而,波动周期的数目可以是变化的(更少或更多)。延伸部分23具有两个镜像对称的部分,每个从上部桥部分22开始并且在各自的挤压部分25的末端终止。此外,可以注意到,不管是延伸部分23或者挤压部分25在这个示意性的结构中都不与腿26直接接触。
在图2的实施例中,延伸部分23和挤压部分25与桥22和腿26是整体形成的。显示的腿26在横截面中相对的为圆形。桥21和所有的挤压元件22、23、25在横截面中也可以是圆形。替代的,如图2所示,延伸部分23的任何的部分和/或挤压部分25可以具有不同的横截面形状,例如椭圆形、矩形或多边形。在图示的实施例中,延伸部分23的横截面在远离上部桥部分22的第一个曲线之后形成为"跑道"的形状(两条相对直的边和与每个该边的末端连接的两段弯曲的末端)。上部桥部分22也可以具有不同的横截面形状。在该实施例中延伸部分23和挤压部分25的横截面区域是均匀的。然而,这些部件的不同的部分可以具有不同的依照要求的横截面积(即不同的厚度)。
当上部桥22、延伸部分23和挤压部分25构型为将预定的压力传递给组织并且吸收大于预定压力的力时,其所有的作用在于使构造出的OTC设备具有给定的弹簧系数。换句话说,即使在组织由于膨胀而扩大和在干化过程中组织收缩之后,OTC设备在固定的区域内也保持预定的压力。上部桥22、延伸部分23和挤压部分25的任意部分的横截面的变化将允许不同的OTC弹簧系数,并且由此,允许调整在固定钉20内的OTC设备的挤压和作用力的恒量。所有固定钉20或它的部分的任意的组成材料的变化也会允许OTC力的调整。
图3图示了依照本发明的OTC固定钉30的第二示意性的实施例。在这个变例中,与图2的实施例相比,OTC部分不是与桥31和腿32整体形成的。替代的是,OTC设备33固定钉部分分离并且连接到该部分上。特别地,OTC设备33具有直接接触被挤压的组织的挤压部分34和当组织在固定钉30的中央区域37内被挤压时用于提供承载力的延伸部分36。该OTC设备33还具有连接部分35,用于将OTC设备33连接到桥31。延伸部分36连接OTC设备33的上和下部分34、35。在该实施例中,延伸部分33和挤压部分34的横截面积是不同的。在此,挤压部分34的横截面积比延伸部分36的宽。延伸部分33或挤压部分34的任意部分可以变化以具有相同的或不同的横截面积(即,变化的厚度)。
OTC设备33与固定钉的连接,例如,在桥31,可以通过任意的紧固方法实现。一种示意性的连接方法是点焊,其在图3中利用数字38标记。其他示意性的将适当的材料连接在一起的方法包括钎焊和铜焊。固定钉部分31、32和OTC设备33的材料的类型或多种类型将指定更优选的连接方法。在将两种不适合熔焊、纤焊或铜焊的材料连接到一起的例子中,其他的连接方法也可以使用,例如压接和粘合。也可以在两个部分的一个或者两个上增加特征以促进压接或者胶结。这些特征可以构造为具有揿钮接头连接到一起的元件。就非均质材料而言,例如,如果固定钉材料是不锈钢,并且OTC设备33是镍钛合金,那么优选的是连接措施包括压接、粘合或揿钮接头。
在第二实施例中,OTC设备33表现为类似于图2的实施例的OTC部分,并且可以构型为具有相同变化程度的横截面和其他特殊的特征,而且可以构型为具有相同变化程度的材料组成。OTC设备33的任意属性的变化允许调整在挤压组织上的挤压和作用力的恒量。延伸部分36可以是任何形状和材料,只要它能够将预定的压力传递给位于挤压部分34的组织,并且只要它允许吸收大于预定压力的力。经选择的用于该示意性的OTC设备33的示意性的实施例是一相对的正弦曲线的曲线族,其运行小于两个周期。延伸部分36具有两个镜像对称的部分,每个从上部桥31开始并且在各自的挤压部分34的末端终止。在这个示意性的实施例中,不管是延伸部分36或者挤压部分34都不与腿32直接接触。大部分OTC设备33的横截面具有跑道的形状。与图2中的实施例类似,横截面可以以任何期望的方式变化,从而将预定的压力传递到组织并且吸收大于该预定压力的力。
图4图示了依照本发明的OTC固定钉40的第三示意性的实施例。在这个变例中,与图2和3的实施例相比,OTC部分43相对于桥41或腿42不是对称的。此外,与图3的实施例类似,OTC部分既与桥41也与腿42不是整体形成的。OTC设备43从桥41和腿42分离出来,并且在连接位置固定的连接到桥41。(例如点焊48,其他的固定/连接工艺也可以使用)。特别的是,OTC设备43的连接部分45牢固地将OTC设备43固定到桥41。当组织在固定钉40的中央区域47内被挤压并且挤压部分44直接地接触被挤压的组织时,OTC设备43的延伸部分46提供承载力。
明显不同于图2和3的实施例的是挤压部分44。在此,挤压部分44的宽度(由沿着固定钉40的两条腿42之间的线限定)大于两条腿42的分开的距离。挤压部分44具备接口49,其形状实质上相当于固定钉腿42的上部的横截面形状,但是稍微大一些。腿42穿透这些接口49。以这样的结构,实质上防止OTC设备43的运动超出桥-腿平面。由于接口49构型为稍微大于腿42的横截面,当挤压部分44沿着腿42的上部上下运动时(向上定义为从腿42的刺穿的尖头朝向桥41的方向),延伸部分46在桥-腿平面中充当压力弹簧。因此,第三实施例的OTC设备43的表现不同于图2和3所述的OTC设备,因为形状联锁(form-locking)和在连接部分44和腿42之间的滑动连接。形状联锁关系是根据元件它们本身的形状将两种元件连接在一起的一种关系,与力-联锁关系相反,其通过外加于元件的力将元件联锁在一起。
与上述的实施例类似,OTC设备43可以构型为具有变化的横截面和其他特殊的特征,并且可以由不同组分的材料构成。在该实施例中,延伸部分46和挤压部分44的横截面积是不同的。在此,挤压部分44的横截面积比延伸部分46的宽。延伸部分46或挤压部分44的任意部分可以变化以具有相同的或不同的横截面积(即,变化的厚度)。延伸部分46可以是任何形状和材料,只要它能够将预定的压力传递给位于挤压部分44的组织,并且只要它允许吸收大于预定压力的力。用于OTC设备43的经选择的示意性的实施例是一相对的正弦曲线,其运行大约一个正弦曲线周期。实际上OTC设备43的所有的横截面具有跑道的形式,但是可以变换成依照要求的其他形式(例如,圆形、椭圆形、多边形等等)。如上所述,OTC设备43的任意属性的变化允许对于在中央区域47中受挤压的组织上的压力和作用力的恒量的调整。
图5图示了依照本发明的OTC固定钉50的第四示意性的实施例。该变例具有上述实施例的一些特征。在这个变例中,与图2的实施例类似,OTC部分相对于桥51和腿52对称,并且OTC设备53与桥51整体形成。与图4的实施例类型,挤压部分54具有大于两条腿52之间的分开的距离的宽度,并且具有接口55,其形状实质上相当于腿52的上部的横截面形状,但是稍微大些。腿52穿透这些接口55。以这个结构,实质上防止OTC设备53的运动超出桥-腿平面。OTC设备53的延伸部分56从桥51运行到挤压部分54。因为接口55构型为稍微大于腿52的横截面,当挤压部分54沿着腿52的上部上下运动时,延伸部分56在桥-腿平面中充当压力弹簧。当组织在固定钉50的中央区域57内受压时,由延伸部分56提供承载力。因为挤压部分54和腿52之间的形状联锁和滑动连接,第四实施例的OTC设备53的表现类似于图4的OTC设备。
在此,OTC设备53与腿52、桥51和挤压部分54整体形成。因为桥51的两端不是整体形成的,当固定钉50受到扭力时,它们可以彼此分开。如果实质上期望防止这样的分离,桥51的中央部分可以在连接位置彼此固定地连接。(例如,利用点焊58;也可以使用其他的连接工艺)。
与上述的实施例类似,OTC设备53可以构型为具有变化的横截面和其他特殊的特征,并且可以由不同组分的材料构成。延伸部分56或挤压部分54的任意部分可以变化以具有相同或不同的横截面积(即,变化的厚度)。在该实施例中,延伸部分56和挤压部分54的横截面积是不同的。在此,延伸部分56上部的大部分的横截面积比延伸部分56下部部分的要窄,并且延伸部分56下部部分的横截面在宽度方向上逐渐地增加,直到与挤压部分54的横截面相等。
延伸部分56可以是任何形状和材料,只要它能够将预定的压力传递给位于挤压部分54的组织,并且只要它允许吸收大于预定压力的力。用于OTC设备53的经选择的示意性的实施例是一相对的正弦曲线,其运行超过一个正弦曲线周期。此外,仅仅出于示意性的目的,OTC设备53的横截面具有跑道的形状,但是可以变换成依照要求的其他形状(例如,圆形、椭圆形、多边形等等)。如上所述,OTC设备53的任意属性的变化允许对于在中央区域57中受挤压的组织上的压力和作用力的恒量的调整。
图6图示了依照本发明的OTC固定钉60的第五示意性的实施例。该变例具有上述实施例的一些特征。在这个变例中,与图3的实施例类似,OTC部分相对于桥61和腿62对称,并且OTC设备63与固定钉60的桥61和腿62分离。与图4和5的实施例类似,挤压部分64具有大于两条腿62之间的分开的距离的宽度,并且具有接口65,其形状实质上相当于腿62的上部的横截面形状,但是稍微大些。腿62穿透这些接口65。以这个结构,实质上防止OTC设备63的运动超出桥-腿平面。OTC设备63的延伸部分66从桥61运行到挤压部分64。因为接口65构型为稍微大于腿62的横截面,当挤压部分64沿着腿62的上部上下运动时,延伸部分66在桥-腿平面中充当压力弹簧。当组织在固定钉60的中央区域67内受压时,由延伸部分66提供承载力。因为挤压部分64和腿62之间的形状联锁和滑动连接,第五实施例的OTC设备63的表现类似于图4和5的OTC设备。
OTC设备63与固定钉60的连接,例如,在桥61,可以通过任意的紧固方法实现。一种示意性的连接方法是点焊,其在图6利用数字68标记。固定钉部分61、62和OTC设备63的材料的类型或多种类型将指定更优选的连接方法。在将两种不适合熔焊、纤焊或铜焊的材料连接到一起的例子中,其他的连接方法也可以使用,例如压接和粘合。也可以在两个部分的一个或者两个上增加特征以促进压接或者胶结。这些特征可以构造为具有揿钮接头连接到一起的元件。就非均质材料而言,例如,如果固定钉材料是不锈钢,并且OTC设备63是镍钛合金,那么优选的是连接措施包括压接、粘合或揿钮接头。
与上述的实施例类似,OTC设备63可以构型为具有变化的横截面和其他特殊的特征,并且可以由不同组分的材料构成。延伸部分66或挤压部分64的任意部分可以变化以具有相同或不同的横截面积(即,不同的厚度)。在该实施例中,延伸部分66和挤压部分64的横截面积是不同的。在此,大部分延伸部分66的横截面积比延伸部分66最低的部分的要窄,并且延伸部分66最低的部分的横截面在宽度方向上逐渐地增加,直到与实质上较宽的挤压部分64的横截面相等。
延伸部分66可以是任何形状和材料,只要它能够将预定的压力传递给位于挤压部分64的组织,并且只要它允许吸收大于预定压力的力。用于OTC设备63的经选择的示意性的实施例是一相对的正弦曲线,其运行超过一个正弦曲线周期。此外,仅仅出于示意性的目的,OTC设备63的横截面具有跑道的形状,但是可以变换成依照要求的其他形状(例如,圆形、椭圆形、多边形等等)。如上所述,OTC设备63的任意属性的变化允许对于在中央区域67中受挤压的组织上的压力和作用力的恒量的调整。
图7图示了依照本发明的OTC固定钉70的第六示意性的实施例。该变例具有上述实施例的一些特征。在这个变例中,与图3的实施例类似,OTC部分相对于桥71和腿72对称,并且OTC设备73与固定钉70的桥71和腿72分离。与图4至6的实施例类似,挤压部分74具有大于两条腿72之间的分开的距离的宽度,并且具有接口75,其形状实质上相当于腿72的上部的横截面形状,但是稍微大些。腿72穿透这些接口75。以这个结构,实质上防止OTC设备73的运动超出桥-腿平面。OTC设备73的延伸部分76从桥71运行到挤压部分74。因为接口75构型为稍微大于腿72的横截面,当挤压部分74沿着腿72的上部上下运动时,延伸部分76在桥-腿平面中充当压力弹簧。当组织在固定钉70的中央区域77内受压时,由延伸部分76提供承载力。因为挤压部分74和腿72之间的形状联锁和滑动连接,第六实施例的OTC设备73的表现类似于图4到6的OTC设备。
OTC设备73与固定钉70的连接,例如,在桥71,可以通过任意的紧固方法实现。一种示意性的连接方法是点焊,其在图7利用数字78标记。固定钉部分71、72和OTC设备73的材料的类型或多种类型将指定更优选的连接方法。在将两种不适合熔焊、纤焊或铜焊的材料连接到一起的例子中,其他的连接方法也可以使用,例如压接和粘合。也可以在两个部分的一个或者两个上增加特征以促进压接或者胶结。这些特征可以构造为具有揿钮接头连接到一起的元件。就非均质材料而言,例如,如果固定钉材料是不锈钢,并且OTC设备73是镍钛合金,那么优选的是连接措施包括压接、粘合或揿钮接头。
注意到,在图2、3、5和6的每个中的延伸部分(即弹簧)是处于同一平面内,其可以是桥-腿平面(如图示)或在该平面之外。与这些实施例相比,延伸部分76具有安置在不同平面内的弹簧,一个挨着另一个。
与上述的实施例类似,OTC设备73可以构型为具有变化的横截面和其他特殊的特征,并且可以由不同组分的材料构成。延伸部分76或挤压部分74的任意部分可以变化以具有相同或不同的横截面积(即,不同的厚度)。在该实施例中,延伸部分76和挤压部分74的横截面积是不同的。在此,大部分延伸部分76的横截面积比延伸部分76最低的部分的要窄,并且延伸部分76最低的部分的横截面在宽度方向上逐渐地增加,直到与实质上较宽的挤压部分74的横截面相等。
延伸部分76可以是任何形状和材料,只要它能够将预定的压力传递给位于挤压部分74的组织,并且只要它允许吸收大于预定压力的力。用于OTC设备73的经选择的示意性的实施例是一相对的正弦曲线,其运行超过一个正弦曲线周期。此外,仅仅出于示意性的目的,OTC设备73的横截面具有跑道的形状,但是可以变换成依照要求的其他形状(例如,圆形、椭圆形、多边形等等)。如上所述,OTC设备73的任意属性的变化允许对于在中央区域77中受挤压的组织上的压力和作用力的恒量的调整。
图8图示了依照本发明的OTC固定钉80的第七示意性的实施例。该变例具有上述实施例的一些特征。在这个变例中,与图3的实施例类似,OTC部分相对于桥81和腿82对称,并且OTC设备83与固定钉80的桥81和腿82分离。与图4至7的实施例类似,挤压部分84具有大于两条腿82之间的分开的距离的宽度,并且具有接口85,其形状实质上相当于腿82的上部的横截面形状,但是稍微大些。腿82穿透这些接口85。以这个结构,实质上防止OTC设备83的运动超出桥-腿平面。OTC设备83的延伸部分86从桥81运行到挤压部分84。因为接口85构型为稍微大于腿82的横截面,当挤压部分84沿着腿82的上部上下运动时,延伸部分86在桥-腿平面中充当压力弹簧。当组织在固定钉80的中央区域87内受压时,由延伸部分86提供承载力。因为挤压部分84和腿82之间的形状联锁和滑动连接,第七实施例的OTC设备83的表现类似于图4到7的OTC设备。
与上述的实施例类似,OTC设备83可以构型为具有变化的横截面和其他特殊的特征,并且可以由不同组分的材料构成。延伸部分86或挤压部分84的任意部分可以变化以具有相同或不同的横截面积(即,不同的厚度)。在该实施例中,延伸部分86和挤压部分84的横截面积是不同的。在此,大部分延伸部分86的横截面积比延伸部分86最低的部分的要小、要窄,并且延伸部分86最低的部分的横截面在宽度方向上逐渐地增加,直到与实质上较宽的挤压部分84的横截面相等。此外,该延伸部分86的横截面积小于上述的实施例(但这不是必须的)。
延伸部分86可以是任何形状和材料,只要它能够将预定的压力传递给位于挤压部分84的组织,并且只要它允许吸收大于预定压力的力。用于该OTC设备83的经选择的示意性的实施例是一相对的正弦曲线,其运行超过两个周期,并且还具有运行正弦曲线周期的第二"内部"曲线。在这个实施例中,与图3、6和7的实施例相比,OTC设备83具有最高的部分,其为沿着桥81的大部分延伸的单个的棒状物。
OTC设备83与固定钉80的连接,例如,在桥81,可以通过任意的紧固方法实现。一种示意性的连接方法是点焊,其在图8利用数字88标记。因为与桥81的大部分接触,OTC设备83可以在它的整个长度上焊接。固定钉部分81、82和OTC设备83的材料的类型或多种类型将指定更优选的连接方法。在将两种不适合熔焊、纤焊或铜焊的材料连接到一起的例子中,其他的连接方法也可以使用,例如压接和粘合。也可以在两个部分的一个或者两个上增加特征以促进压接或者胶结。这些特征可以构造为具有揿钮接头连接到一起的元件。就非均质材料而言,例如,如果固定钉材料是不锈钢,并且OTC设备83是镍钛合金,那么优选的是连接措施包括压接、粘合或揿钮接头。
此外,仅仅出于示意性的目的,OTC设备83的横截面具有跑道的形状,但是可以变换成依照要求的其他形状(例如,圆形、椭圆形、多边形等等)。如上所述,OTC设备83的任意属性的变化允许对于在中央区域87中受挤压的组织上的压力和作用力的恒量的调整。
图9图示了依照本发明的OTC固定钉90的第八示意性的实施例。该变例具有上述实施例的一些特征。在这个变例中,与图3的实施例类似,OTC部分相对于桥91和腿92对称,并且OTC设备93与固定钉90的桥91和腿92分离。与图4至8的实施例类似,挤压部分94具有大于两条腿92之间的分开的距离的宽度,并且具有接口95,其形状实质上相当于腿92的上部的横截面形状,但是稍微大些。腿92穿透这些接口95。以这个结构,实质上防止OTC设备93的运动超出桥-腿平面。OTC设备93的延伸部分96从桥91运行到挤压部分94。因为接口95构型为稍微大于腿92的横截面,当挤压部分94沿着腿92的上部上下运动时,延伸部分96在桥-腿平面中充当压力弹簧。当组织在固定钉90的中央区域97内受压时,由延伸部分96提供承载力。因为挤压部分94和腿92之间的形状联锁和滑动连接,第八实施例的OTC设备93的表现类似于图4到8的OTC设备。
与上述的实施例类似,OTC设备93可以构型为具有变化的横截面和其他特殊的特征,并且可以由不同组分的材料构成。延伸部分96或挤压部分94的任意部分可以变化以具有相同或不同的横截面积(即,不同的厚度)。在该实施例中,延伸部分96和挤压部分94的横截面积是不同的。在此,大部分延伸部分96的横截面积比延伸部分96最低的部分的要小、要窄,并且延伸部分96最低的部分的横截面在宽度方向上逐渐地增加,直到与实质上较宽的挤压部分94的横截面相等。此外,该延伸部分96的横截面积小于上述的实施例(但这不是必须的)。利用这样的相对小的横截面形状,延伸部分96的曲线可以倾向于变形或移出桥-腿平面,其趋势可以根据延伸部分96的材料增加或减少。为了防止这样的变形和/或运动,在一个或多个邻近的腿92的各个周期性的曲线的外侧末端设置了多个导向接头片99。这些导向接头片99构型为类似于挤压部分94的末端的方式,因此它们具有接口,其横截面形状实质上相当于腿92的上部的横截面形状,但是稍微大一些。在图9中图示的实施例中提供的各个导向接头片99带有两个相对平行的板,其每个具有两个接口中的一个,其中设置有各自的腿92。与延伸部分96的下部部分类似,延伸部分的横截面积在宽度方向上逐渐地增加,直到它与导向接头片99的板的较大的横截面相等。导向接头片99的另外的替代物是仅具有带有单个接口的单个板。在这样的实施例中(假定两块板的实施例中的材料是相同的),延伸部分96的曲线会稍微的硬化,这是因为缺少了导向接头片99的外部的曲线。
延伸部分96可以是任何形状和材料,只要它能够将预定的压力传递给位于挤压部分94的组织,并且只要它允许吸收大于预定压力的力。用于该OTC设备93的经选择的示意性的实施例是相对的正弦曲线,其具有运行几个正弦曲线周期的第二内部曲线,在这个实施例中,其具有最高的部分,与图8中的实施例类似,该部分是沿着桥91的大部分延伸的单个的棒状物。OTC设备93与固定钉90的连接,例如,在桥91,可以通过任意的紧固方法实现。一种示意性的连接方法是点焊,其在图9利用数字98标记。替代地,焊接可以覆盖与桥91接触的整个跨度。固定钉部分91、92和OTC设备93的材料的类型或多种类型将指定更优选的连接方法。在将两种不适合熔焊、纤焊或铜焊的材料连接到一起的例子中,其他的连接方法也可以使用,例如压接和粘合。也可以在两个部分的一个或者两个上增加特征以促进压接或者胶结。这些特征可以构造为具有揿钮接头连接到一起的元件。就非均质材料而言,例如,如果固定钉材料是不锈钢,并且OTC设备93是镍钛合金,那么优选的是连接措施包括压接、粘合或揿钮接头。
此外,仅仅出于示意性的目的,OTC设备93的横截面具有跑道的形状,但是可以变换成依照要求的其他形状(例如,圆形、椭圆形、多边形等等)。如上所述,OTC设备93的任意属性的变化允许对于在中央区域97中受挤压的组织上的压力和作用力的恒量的调整。
图10图示了依照本发明的OTC固定钉100的第九示意性的实施例。该变例具有上述实施例的一些特征。在这个变例中,与图3的实施例类似,OTC部分相对于桥101和腿102对称,并且OTC设备103与固定钉100的桥101和腿102分离。但是,挤压部分104与所有上述的实施例都是不同的。在此,挤压部分104由两段挤压板构成,这些板的每一个连接到OTC设备103的两个对半部分的各自的下端。挤压部分104的形状不一定是板。例如,它可以是圆柱体。与上述的实施例类似,延伸部分106的最低的末端部分在横截面上逐渐地增加,直到它与挤压部分104相等。之后,各个挤压板朝向各自的一条腿102延伸,并且限定各自用于在其中接纳腿102的接口105。接口105的形状实质上相当于腿102的上部的横截面形状,但是稍微大一些。腿102穿过各个接口105以形成OTC设备103。以这个结构,实质上防止OTC设备103的运动超出桥-腿平面。OTC设备103的延伸部分106从桥101运行到挤压部分104的板。因为接口105构型为稍微大于腿102的横截面,当挤压部分104沿着腿102的上部上下运动时,延伸部分106在桥-腿平面中充当压力弹簧。当组织在固定钉100的中央区域107内受压时,由延伸部分106提供承载力。
在这个实施例中,与前述的OTC设备的实施例相比,OTC设备103的两段的移动与彼此无关。因此,如果组织在中央部分107内有任何特性变化(例如硬度、厚度、密度),最佳的组织压力可以独立地和不同地传递到与OTC设备103的各自的一段接触的两个不同的组织的各自的部分。
OTC设备103与固定钉100的连接,例如,在桥101,可以通过任意的紧固方法实现。一种示意性的连接方法是点焊,其在图10利用数字108标记。由于上部几乎接触所有的桥101,替代地,可以在桥101任意部分的跨度上焊接。固定钉部分101,102和OTC设备103的材料的类型或多种类型将指定更优选的连接方法。在将两种不适合熔焊、纤焊或铜焊的材料连接到一起的例子中,其他的连接方法也可以使用,例如压接和粘合。也可以在两个部分的一个或者两个上增加特征以促进压接或者胶结。这些特征可以构造为具有揿钮接头连接到一起的元件。就非均质材料而言,例如,如果固定钉材料是不锈钢,并且OTC设备103是镍钛合金,那么优选的是连接措施包括压接、粘合或揿钮接头。
与上述的实施例类似,OTC设备103可以构型为具有变化的横截面和其他特殊的特征,并且可以由不同组分的材料构成。延伸部分106或挤压部分104的任意部分可以变化以具有相同或不同的横截面积(即,不同的厚度)。在该实施例中,延伸部分106和挤压部分104的板的横截面积是不同的。在此,大部分延伸部分106的横截面积比延伸部分106最低的部分的要小、要窄,并且延伸部分106最低的部分的横截面在宽度方向上逐渐地增加,直到与实质上较宽的挤压部分104的各自的板的横截面相等。
延伸部分106可以是任何形状和材料,只要它能够将预定的压力传递给位于挤压部分104的组织,并且只要它允许吸收大于预定压力的力。用于该OTC设备103的经选择的示意性的实施例是相对的正弦曲线,其具有几乎两个正弦曲线周期,在这个实施例中,其具有最高的部分(与图8和9中的实施例类似),该部分是沿着桥101的大部分延伸的单个的棒状物。仅仅出于示意性的目的,OTC设备103的横截面具有椭圆的形状,但是可以变换成依照要求的其他形状(例如,圆形、跑道形、多边形等等)。如上所述,OTC设备103的任意属性的变化允许对于在中央区域107中受挤压的组织上的压力和作用力的恒量的调整。
图11和11A图示了依照本发明的OTC固定钉110的第十个示意性的实施例。该变例具有上述实施例的一些特征。在这个变例中,与图3的实施例类似,OTC部分相对于桥111和腿112对称,并且OTC设备113与固定钉110的桥111和腿112分离。在此,挤压部分104与图10的实施例类似,它由两段挤压板构成,这些板的每一个连接到OTC设备113的两个对半部分的各自的下端。与上述的实施例类似,延伸部分116的最低的末端部分在横截面上逐渐地增加,直到它在面积上与挤压部分114相等。之后,各个挤压板朝向各自的一条腿112延伸,并且限定各自用于在其中接纳一条腿112的接口115。在图11中,接口115是看不到的,因为存在单向的垫圈119(如下所述),但是接口115在图11A中是明显的。
如上所述,每个接口115的形状实质上相当于腿102的上部的横截面形状,但是稍微大一些。腿112穿过各个接口115以形成OTC设备113。因为接口115构型为稍微大于腿112的横截面,当挤压部分114沿着腿112的上部上下运动时,延伸部分116在桥-腿平面中充当压力弹簧。以这个结构,实质上防止OTC设备113的运动超出桥-腿平面。当组织在固定钉110的中央区域117内受压时,由延伸部分116提供承载力。在这个实施例中(与图10的实施例类似),OTC设备113的两段的移动与彼此无关。因此,如果组织在中央部分117内有任何特性变化(例如硬度、厚度、密度),最佳的组织压力可以独立地和不同地传递到与挤压部分114的的两段板接触的两个不同的组织片段的各自的部分。
在本实施例中第一次引入的单向设备119(在图11和11A中显示的一个示意性的实施例是星形垫圈)设置在腿112上,位于桥111和挤压部分114之间。这些设备119构型为自由地在腿112上朝向桥111向上移动,但是不能在相反方向上移动。因此,当组织在中央区域117内受挤压时,腿112的顶部弯曲起固定作用,该组织向挤压部分114施压并且朝向桥111向上移动挤压部分114。一旦固定力从固定钉110消除(当固定完成之后),在没有任何附加的补充的外力的情况下,组织最可能的是不会更进一步地挤压垫圈119。因此,垫圈119限制挤压部分114的从垫圈119的当时的当前位置朝向腿112的第一个弯曲的进一步的运动。当第一固定运动产生时,这些垫圈也增加一些摩擦,这些摩擦可用来增加和构成OTC设备113的挤压系数。如果固定时组织膨胀,如果该力是充分的,它可能促使垫圈119移动。当这样的膨胀结束后,会产生组织的干化,通过这些垫圈119会限制挤压部分114的进一步的挤压。
与上述的实施例类似,OTC设备113可以构型为具有变化的横截面和其他特殊的特征,并且可以由不同组分的材料构成。延伸部分116或挤压部分114的任意部分可以变化以具有相同或不同的横截面积(即,不同的厚度)。在该实施例中,延伸部分116和挤压部分114的板的横截面积是不同的。在此,大部分延伸部分116的横截面积比延伸部分116最低的部分的要小、要窄,并且延伸部分116最低的部分的横截面在宽度方向上逐渐地增加,直到与实质上较宽的挤压部分114的各自的板的横截面相等。
延伸部分116可以是任何形状和材料,只要它能够将预定的压力传递给位于挤压部分114的组织,并且只要它允许吸收大于预定压力的力。用于该OTC设备113的经选择的示意性的实施例是一相对的正弦曲线,其运行超过两个周期,并且还具有第二"内部"曲线。在这个实施例中,OTC设备113具有最高的部分(与图8至10的实施例类似),其为沿着桥111的大部分延伸的单个的棒状物。OTC设备113与固定钉110的连接,例如,在桥111,可以通过任意的紧固方法实现。一种示意性的连接方法是点焊,其在图11利用数字118标记。如果需要,该工艺是可以改变的。固定钉部分111、112和OTC设备113的材料的类型或多种类型将指定更优选的连接方法。在将两种不适合熔焊、纤焊或铜焊的材料连接到一起的例子中,其他的连接方法也可以使用,例如压接和粘合。也可以在两个部分的一个或者两个上增加特征以促进压接或者胶结。这些特征可以构造为具有揿钮接头连接到一起的元件。就非均质材料而言,例如,如果固定钉材料是不锈钢,并且OTC设备113是镍钛合金,那么优选的是连接措施包括压接、粘合或揿钮接头。
仅仅出于示意性的目的,OTC设备113的横截面具有跑道的形状,但是可以变换成依照要求的其他形状(例如,圆形、椭圆形、多边形等等)。如上所述,OTC设备113的任意属性的变化允许对于在中央区域117中受挤压的组织上的压力和作用力的恒量的调整。
图12图示了依照本发明的OTC固定钉120的第十一个示意性的实施例。该变例显著地区别于上述的实施例。如同上述,该OTC设备123与固定钉120的桥121和腿122分离。但是,在此,挤压部分124具有带有接口125的C形横梁,该接口允许各自的一条腿122在其中通过。每个接口125的形状实质上相当于腿122的上部的横截面形状,但是稍微大一些。腿122穿过各个接口125以形成OTC设备123。以这个结构,实质上防止OTC设备123的运动超出桥-腿平面。
该C形横梁的形状基于以下的理由是有用的。首先,C形形状提供了中央腔,其中挤压设备126的顶部可以保持或紧固。其次,如在结构上所公知的,与简单的矩形板相比,C形形状也增加了抗弯能力。最后,定位"C形"的开口部分使其远离组织,为待挤压的组织提供了平坦的挤压板。利用这样的形状,可以平坦地挤压组织,没有单个的挤压点。当然,C形形状也不是仅有的可能的横截面形状。该挤压部分124可以是矩形板,I形横梁,L形横梁,或者任意其他期望的形状。
挤压设备126可以采取任意的形式(例如参见图13)。图12的示意性的实施例图示了挤压设备126作为成圆锥形膨胀的压力弹簧。弹簧126和挤压部分124与固定钉120的连接,例如,在桥121,可以通过任意的紧固方法实现。图示的示意性的邻近的连接方法是围绕桥121缠绕的弹簧材质的环。邻近的末端固定在桥121的中央,并且通过在桥121上的设置的突起128保持在该位置。这些突起防止邻近的环朝向两条腿122的任何一个的横向运动。当然,该环可以通过任何紧固方法焊接或固定到桥121。弹簧的顶部为位于与C形横梁的内部腔相同的平面内的相对的圆形线圈,作为,并且具有仅仅稍微小于挤压部分124的C形形状的腔的内径的外径。因此,C形形状的末端可以用于将弹簧126的顶部保持在腔内。当然,也可以采用其他的将弹簧顶部紧固到挤压部分124的措施。
当组织在固定钉120的中央区域127内受压时,由弹簧126提供承载力。与上述的实施例类似,OTC设备123可以构型为具有变化的横截面、弯曲和其他特殊的特征,并且可以由不同组分的材料构成。弹簧126或挤压部分124的任意的部分可以变化。特别的是,弹簧126可以是任何形状和材料,只要它能够通过挤压部分124将预定的压力传递给组织,并且只要它允许吸收大于预定压力的力。如上所述,OTC设备123的任意属性的变化允许调整在位于中央区域127内受挤压组织上的挤压和作用力的恒量。
图13图示了依照本发明的OTC固定钉130的第十二个示意性的实施例。该变例类似于图12的实施例。如同上述,OTC装置133与固定钉130的桥131和腿132是分离的,并且挤压部分134是具有接口135的C形横梁,该接口允许各自的一个腿132在其中通过。每个接口135具有的形状实质上相当于腿132的上部的横截面形状,但是稍微大一些。腿132穿透每个接口135以形成OTC设备133.以这样的结构,实质上防止OTC设备133的运动脱离桥-腿平面。
C形横梁的形状具有如图12所描述的第十一个实施例相同的益处。与该实施例类似,该C形形状不是必需的。挤压部分134可以是矩形板、I型横梁,L型横梁或任何其他期望的形状。
挤压设备136可以采用任何形式。在图13的示意性的实施例中,挤压设备136是一对压力弹簧136。弹簧136和挤压部分134与固定钉130的连接,例如,在桥131,可以通过任意的紧固方法实现。图示的实施例邻近的连接方法是使弹簧直径缩小以等于或者小于在连接到桥131的连接点的腿132的直径。因此,弹簧135可以通过施加在腿132上的力保持,通过将较小的弹簧圈压合到腿132上的预定位置。替代地和/或附加地,在腿-桥交会处的几乎九十度的弯曲形成阻碍,防止各个弹簧136的顶部的进一步的向上的运动。当然,上部环可以通过任意的措施,例如焊接、压接等,固定到固定钉130。
与图12的实施例类似,在图13中的弹簧136的顶部通过位于与C形横梁的内部腔相同的平面内的相对的圆形线圈形成,并且具有仅仅稍微小于挤压部分134的C形形状的腔的内径的外径。因此,C形形状的末端可以用于将弹簧136的顶部保持在腔内。例如,线圈可以焊接到C形横梁。当然,其他的固定措施和线圈构型也可以用来将弹簧136的顶部固定到挤压部分134。
当组织在固定钉130的中央区域137内受压时,由弹簧136提供承载力。与上述的实施例类似,OTC设备133可以构型为具有变化的横截面和其他特殊的特征,并且可以由不同组分的材料构成。弹簧136或挤压部分134的任意的部分可以变化。特别的是,弹簧136可以是任何形状和材料,只要它能够通过挤压部分134将预定的压力传递给组织,并且只要它允许吸收大于预定压力的力。如上所述,OTC设备133的任意属性的变化允许调整在位于中央区域137内受挤压组织上的挤压和作用力的恒量。
在图12中显示的弹簧136在腿132之间振荡,但是不与任何一条腿132接触。相反地,图13的弹簧135围绕整个腿的全部长度缠绕。当弹簧136挤压时,这样的位置设置存在通过腿132施加阻力(即摩擦)到弹簧136上的可能性。该阻力基于期望的OTC设备挤压系数可以是合乎要求的。如果需要减小阻力,那么套管138可以插入到腿132上,因此他们"润滑"或减少弹簧挤压的阻力。例如该套管138可以由聚四氟乙烯(PTFE)制造。
图14图示了依照本发明的OTC固定钉140的第十三个示意性的实施例。该变例类似于图12和13的实施例。如同上述,OTC设备143与固定钉140的桥141和腿142分离,并且挤压部分144是具有未图示的接口的C形横梁,该接口允许各自的一条腿142在其中通过(在图14中所示,该接口在图中被C形横梁遮挡了)每个接口具有的形状实质上相当于腿142的上部的横截面形状,但是稍微大一些。腿142穿透每个接口以形成OTC设备143.以这样的结构,实质上防止OTC设备143的运动脱离桥-腿平面。
C形横梁的形状具有如图12所描述的第十一个实施例相同的益处。与该实施例类似,该C形形状不是必需的。挤压部分144可以是矩形板、I型横梁,L型横梁或任何其他期望的形状。
挤压设备146可以采用任何形式。图14中示意性的实施例是一对挤压弹簧146。与图12中所示的单个弹簧136类似,该实施例的压力弹簧146在腿142之间振荡但是不与任意一条腿142接触。弹簧146与固定钉140的连接,例如,在桥141,可以通过任意的紧固方法实现。图示的示意性的邻近的连接方法是对着桥141设置的第二C形横梁,并且在此通过任意的紧固措施连接,例如通过点焊148。利用这样的连接关系,每个弹簧146连同位于与每个C形横梁的内部腔相同的平面内的相对的圆形线圈形成,并且具有仅仅稍微小于挤压部分144的各自的C形形状的腔的内径的外径。因此,C形形状的末端可以用于将弹簧146的顶部保持在腔内。这些端部线圈可以压配合或滑入C形横梁腔,用于连接在此。替代地和/或附带地,这些下部和上部环圈可以通过焊接、压接等紧固到横梁。两条C形横梁的各自的内部腔可以具有相同或不同的尺寸。
当组织在固定钉140的中央区域147内受压时,由弹簧146提供承载力。与上述的实施例类似,OTC设备143可以构型为具有变化的横截面、缠绕和其他特殊的特征,并且可以由不同组分的材料构成。弹簧146或挤压部分144的任意的部分可以变化。特别的是,弹簧146可以是任何形状或缠绕或任意的材料,只要它能够通过挤压部分144将预定的压力传递给组织,并且只要它允许吸收大于预定压力的力。如上所述,OTC设备143的任意属性的变化允许调整在位于中央区域147内受挤压组织上的挤压和作用力的恒量。
图15图示了依照本发明的OTC固定钉150的第十四个示意性的实施例。如同上述,该OTC设备153与固定钉150的桥151和腿152分离。然而,咱此,该变例不同于上述的实施例,因为OTC设备153为由挤压性材料构成的衬垫。上述材料的例子包括但不局限于:闭式蜂巢聚乙烯炮沫、膨胀的聚四氟乙烯(PTFE)、硅橡胶、硅橡胶泡沫、氨基甲酸乙酯和静电纺纱热塑性弹性体。衬垫153限定两个通道154,其用于接收在其中通过的各自的一条腿152。因为固定钉腿152稍微向内成锥形,从固定钉150的中间部分155直到桥151的底部的方向(但是该锥形不是必要条件)。通道154的横截面积比设置在通道154内的腿的一部分的横截面积大一些。通过将腿152分开穿过各个通道154,由此形成OTC设备153。
当组织在固定钉150的中央区域157内受压时,由这个垫块153提供承载力。与上述的实施例类似,OTC设备143可以构型为具有变化的横截面和其他特殊的特征,并且可以由不同组分的材料构成。在图15中图示的示意性的实施例为在横向具有跑道横截面形状的垫块。然而,该垫块的外侧的横断面形状可以是圆形、椭圆形的、矩形和多边形。
垫块153的任意的部分可以是不同的,只要它能够将预定的压力传递给位于垫块153的顶部的组织,并且只要它允许吸收大于预定压力的力。如上所述,OTC设备153的任意属性的变化允许调整在位于中央区域157内受挤压组织上的挤压和作用力的恒量。
图16图示了依照本发明的OTC固定钉160的第十五个示意性的实施例。该变例不同于上述的实施例。如同上述,该OTC设备163与固定钉160的桥161和腿162分离。该OTC设备为由半挤压性材料构成的板163,该半挤压性材料的性质将在下文中详细地介绍。上述材料的例子包括但不局限于:聚氨基甲酸酯和硅橡胶。板163限定两个通道164,其用于接收在其中通过的各自的一条腿162。因为固定钉腿162在桥腿平面内稍微向内成锥形,从固定钉160的中间部分165直到桥161的底部的方向(但是该锥形不是必要条件)。在桥-腿平面内的每个通道164的横截面积比设置在通道164内的腿162的一部分的横截面积大一些。该较大一些的面积通过洞限定,即在桥-腿平面中比沿着腿162的轴线成直角的平面要大一些。在图16的示意性的实施例中,通道164的横截面形状是椭圆形的或跑道形的。通过将腿162分开穿过各个通道164,由此形成OTC设备163。
注意到,在图16中所示的固定钉160不同于图1的现有技术的固定钉。特别地,腿162的连接部分166在宽度方向上在从中间部分开始对着桥161的方向向外成锥形,位于与桥-腿平面垂直的平面中。因为在扩展的平面内(该平面垂直于桥-腿平面)通道164具有固定的宽度,并且由于固定的宽度在尺寸上对于连接部分166的最下端的部分(最靠近中间部分165)是闭合的,板163不能朝向桥161向上移动,除非板163的材料是半可挤压的。有关材料的性能对于挤压和阻力的研究可以用于设置或调整作用在位于中央区域167中的受挤压的组织上的挤压和作用力恒量,所述阻力在板163沿着延伸的腿的向外的锥形向上前进时对向上的运动提供。板163和上部腿的锥形的任意部分可以是不同的,只要OTC体系(板163和腿162的锥形)能够将预定的压力传递到位于板163的顶部的组织,并且只要它允许吸收大于该预定的压力的力。
该实施例的OTC设备可以构型为具有变化的横截面、锥形和其他特殊的特征,并且可以由不同组分的材料构成。在图16中图示的示意性的实施例为在横向具有跑道横截面形状的板163。然而,该垫块的外侧的横断面形状例如可以是圆形、椭圆形、矩形和多边形。
依照本发明的OTC固定钉可以以与传统的固定钉相同的方式应用,即:
将固定钉载入在固定钉卡筒中;
将待利用该固定钉固定的材料放置在固定钉卡筒和砧座之间;和
将该砧座和固定钉聚集在一起以抵靠砧座挤压腿的下部部分,并且使得该下部部分向内弯曲,以将材料俘获在中央区域中且在弯曲部分和固定钉的挤压部分之间对其挤压。
因为待挤压的材料具有的长度小于在弯曲的下端部分和桥之间的距离,该被俘获的材料在固定钉内部分地挤压OTC设备,因此,实现最佳的组织压力特性。当固定钉和材料从固定钉卡筒和砧座移除时,该OTC设备向挤压材料提供预定的压力。重要地,当材料经历其挤压和膨胀循环时,该OTC设备能移动,直到它最终达到稳态的大小。即使在达到稳态之后,OTC设备施加期望的压力(在可接受的最小范围内),因此材料不会由于过度挤压而永久地破坏的。
例如,如果该材料是人体组织,当组织固定时,体液将从组织中被挤出来。在干化期间,组织的挤压越来越大。OTC设备通过加大补偿跟随组织的挤压。在一些时间点上,组织开始膨胀(由于在其上施加的刺穿和挤压力)。在膨胀期间,该OTC设备通过降低补偿跟随组织的膨胀。
上述描述和附图解释了本发明的原理、最优的实施例和操作模式。然而,这不能看作将本发明限制在上述的特别的实施例中。上述实施例的额外的变例可以通过本领域的技术人员领会。
因此,上述的实施例可以认为是说明性的,而不是限制性的。因此,需要领会的是,对于那些实施例的变化可以由本领域技术人员在不脱离由下列权利要求所限定的本发明的范围内作出。
Claims (15)
1.压力自动调节的固定钉,包括:
实质上为U形的固定钉,其包括:
若干条腿;
桥,所述桥连接所述腿;和
内部设置的挤压设备,所述挤压设备具有偏压部分,所述偏压部分带有:
挤压表面,所述挤压表面可动地置于所述腿之间,所述挤压表面和所述腿限定中央挤压地区,当所述固定钉的腿的顶部变形时将挤压在位于挤压表面和固定点之间设置待挤压的材料;和
挤压阻滞器,所述挤压阻滞器:
连接于所述桥,并与所述挤压表面整体形成;以及
变形以通过力来抵抗所述挤压表面朝向所述桥的运动,所述挤压阻滞器在所述材料的膨胀和收缩过程中保持所述力。
2.根据权利要求1所述的固定钉,其中:
所述桥实质上为具有末端的杆状物;和
每条所述腿的底基与各自的一个所述末端整体形成。
3.根据权利要求1所述的固定钉,其中:
所述桥和腿限定桥-腿平面;和
所述腿在桥-腿平面中以在80至100度范围内的角度从所述桥伸出。
4.根据权利要求1所述的固定钉,其中:
所述挤压表面限定两个孔;和
每条所述腿从所述两个孔的一个中伸出。
5.根据权利要求4所述的固定钉,其中:
所述挤压阻滞器限定至少一个孔对,特别是多个孔对;
每条所述腿穿过所述至少一个孔对中的一个。
6.根据权利要求1所述的固定钉,其中:
所述桥和腿限定挤压轴线;和
所述挤压表面沿着所述挤压轴线可活动地设置在所述腿之间。
7.根据权利要求1所述的固定钉,其中所述挤压设备与所述桥连接,特别地,其中所述挤压阻滞器将桥连接到所述挤压表面,或者,特别地,所述桥、腿、挤压阻滞器和挤压表面是整体形成。
8.根据权利要求1所述的固定钉,其中挤压阻滞器至少部分地设置在所述腿之间。
9.根据权利要求1所述的固定钉,其中所述挤压阻滞器设置在所述桥和所述挤压表面之间。
10.根据权利要求1所述的固定钉,其中所述力包括预定的反作用力、实质上恒定的力以及线性增加的力中的一种。
11.根据权利要求1所述的固定钉,其中所述挤压阻滞器具有抗挤压弹簧刚度,其实质上提供预定压力范围内的恒定的抗压力。
12.根据权利要求1所述的固定钉,其中所述固定钉和所述挤压设备为生物相容的材料。
13.根据权利要求1所述的固定钉,其中:
当顶部在固定钉闭合方向变形为中央挤压区域时,偏压部分利用预定的、实质上恒定的力抵抗挤压表面在固定钉闭合方向的运动。
14.根据权利要求1所述的固定钉,其中当固定点变形时,所述挤压表面和偏压部分构型为向设置在挤压表面和固定点之间的材料提供所述预定的、实质上恒定的偏压力。
15.根据权利要求1所述的固定钉,其中:
当固定点朝向彼此变形时,设置在所述挤压表面和固定点之间的材料在固定点和挤压表面之间被挤压;和
所述挤压阻滞器对在预定范围内的材料保持实质上恒定的压力,独立于固定点和挤压表面之间的挤压程度。
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