CN1895182A - 带有可移除限深器的针组件 - Google Patents
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
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- A—HUMAN NECESSITIES
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Abstract
一种针组件(10),包括连于支座结构(12)的针(14)并用于将所述针插入患者的身体中。针组件的限深器单元(50)提供止动表面(58)以限制针能够插入到身体中的距离。限深器单元可以包括可调节以选择性地改变针可以插入的深度的限深器(52)。整个限深器单元能够从针组件上移除。以允许针的整个长度穿刺进身体中。
Description
技术领域
本发明主要涉及用于医疗的针并更具体地涉及具有限深器以限制针在对象内穿刺深度的针组件,该限深器可选择性地从针上移除。
背景技术
在一些医疗应用中使用针在身体中进行相对深度的穿刺以完成其任务。例如在必须获得活检样本的地方,针可能不得不深深地刺入组织以到达采集样本的位置。然而,还存在这样的情况即为了注射药物或抽取液体,针必须穿过组织足够的距离。一个具体的例子是进入骨的髓管。这样做是用于从髓管中收集骨髓样本或液体。也可能通过针将药物或其它液体注入到所述髓管中。
为了穿刺包绕髓管的坚硬的皮质骨,所述针必须坚硬和强韧,并且有足够的力施加到该针上。所述针典型地安装在手柄上,所述手柄能够由医疗技师抓握以提供必要的力用于穿刺皮质骨到达髓管。重要的是医疗技师小心执行使得针不会扎到除目标骨以外的身体其它地方。依据用于穿刺的所选择骨的位置,该骨可能靠近如果被误扎针将会造成伤害的器官或者血管。例如,如果针穿刺得太深,可能会造成身体非目标区域的伤害。这样,使用这种类型的骨针组件需要同时训练足够的力道和精确程度。
一种用于减少针损害身体的可能性的方法是提供限制针在身体内穿刺深度的限深器。典型地,限深器布置在手柄以下针的周围并能接合身体的外部以阻止针向内刺入。限深器减少了可用于穿入身体的针的长度。从一个患者到下一个患者合适的穿刺深度可以变化范围很广。例如,肥胖的患者可能需要穿刺皮肤和软组织几英寸深以到达骨,而消瘦的患者需要很浅的穿刺就到达骨。而且,目标骨的位置也会要求不同的穿刺深度。为了满足这一需求,已经提供了限深器单元,其允许时限深器进行调整来暴露更多或更少的用于穿刺身体的针的长度。虽然这种可调的限深器单元提供了更大的灵活性,但是它们不能完全满足针长度变化的需要。而且,一些处理过程比其它处理过程有更少的理由使用限深器。医疗技师在他们对使用带有限深器的针组件的偏爱也是不同的。
在限深器存在于针组件的例子中,针的实际长度永远不会完全用于穿刺身体,因为它将保持被限深器覆盖的部分。这是真实的即使调整限深器到暴露最大可能的针的长度于穿刺。因此有必要在手中持有多个具有不同长度的针组件和/或不带有限深器的针组件。
发明内容
在本发明的一个方面,一种可变换的针组件主要包括支座结构和具有纵向轴线及锐利端的针,该针被安装在支座结构上并从该支座结构向外伸出,使得锐利端大体远离支座结构。适于限制针穿刺深度的限深器通过旋转连接器可释放地连接到针细件上。为了增加针穿刺的可能深度,可释放的限深器能从针上移除。
在本发明的另一个方面,骨针组件主要包括手柄和具有纵向轴线及锐利端的针。该针安装在手柄上远离针的锐利端的位置并从该手柄上向外伸出。限深器单元包括定位杆和安装于定位杆上并可沿杆的长度移动到沿杆和沿针的纵向轴线方向所选的不同位置的限深器。该限深器具有适于限制针的穿刺深度的止动表面。限深器单元的旋转连接器适于可释放地连接杆与针细件。旋转连接器能够释放杆的连接,使得杆和限深器可以从针上移除以增加针穿刺深度的可能。
在本发明的又一方面,一种调整针组件的针可允许的穿刺深度的方法主要包括释放限深器单元与针组件的旋转连接。限深器单元包括沿针的纵向轴线定位并将针的穿刺深度到限制第一深度的限深器。使限深器单元滑离该针以暴露针的额外长度用于将针穿刺到大于第一深度的第二深度。
本发明的其它目的和特征将在下文中分开展示及分开指出。
附图说明
图1是骨针组件的透视图;
图2是限深器单元从与组件的连接释放的图1的透视图;
图3是限深器单元从针组件上移开并暴露针组件的图2的透视图;
图4是限深器单元纵截面图;
图5是限深器单元螺纹部件的正面图;
图6是针组件的远端手柄部件的前视图;
图7是将远端手柄部件的一部分去掉并移除针组件套管的远端手柄部件的左侧正面图;
图8是螺纹部件连接于其上的远端手柄部件的前视图;及
图9是将手柄部件的一部分去掉并移除套管的图8的远端手柄部件的右侧正面图。
相应的附图标记指示遍及附图各个视图的相应部件。
具体实施方式
现在参考附图特别是图1-3,根据本发明原理构造的骨针组件总体用10指代。所述骨针组件包括手柄12(宽泛地,“支座结构”)和针14,所有附图标记总体指代它们的目标对象。针14包括探针18和接纳该探针的套管20。手柄12包括安装探针18的第一或者近端手柄部件(总体用22指代),和安装套管20的第二或远端手柄部件(总体用24指代)。“近端”和“远端”指在使用针组件时手柄部分对于医疗技师的相对位置。近端手柄部件22在使用中接触技师手的手掌,远端手柄部件24位于近端手柄部件的与手掌相对的一侧。应该理解的是,在本发明范围内针可以仅包括一个组成部件,或者两个以上的部件。类似地,手柄可以是一个部件或两个以上部件。而且,本发明已经应用到除骨针组件和具有限深器针组件之外的其它针组件。可以想到本发明还具有针领域之外的用途。
套管20具有沿套管长度延伸并在套管两端开口的轴向通道。套管20的远端尖端28是具有斜面及锐利的。在远端手柄部件24内接纳有套管20的近端端部。探针18是实心的并且包括锐利远端尖端32,和接纳于近端手柄部件22内的近端端部。探针18可以插入开口于套管20近端端部的轴向通道并完全接纳贯穿在套管的轴向通道内,使得其锐利远端尖端32从套管远端尖端28轴向向外伸出。探针18提供用于穿刺皮质骨的工具,并且一旦在针14进入髓管后能够从套管20移除。
由近端和远端手柄部件22、24构成的手柄12具有人体工程学形状,能舒适的接纳在医疗技师的手中,并且允许技师在当他或她施加穿刺骨所需相当大的力时能够容易地控制针组件10。更具体地,近端手柄部件22的顶或近端表面38是圆形的与手掌的形状一致。远端手柄部件24的底或远端表面40也是圆形的,但是是波浪形状的,由此构成指壁40A以接纳技师的手指。当探针18接纳于套管中20时,近端和远端手柄部件22、24能够牢固地连接在一起,使得当被用于驱动针14穿过患者的皮肤并进入骨时,手柄12本质上作为一体件使用。近端和远端手柄部件22、24可以分离并移开以从套管20中移除探针18。
为了将近端手柄部件22和探针18与远端手柄部件24和套管20装配起来,探针的锐利远端尖端32插入到远端手柄部件的中央开口部分使其进入套管的轴向通道。近端和远端手柄部件从它们的对准位置旋转到近端手柄部件22垂直于远端手柄部件24的位置(未示出)。当手柄部件22、24完全在一起时,它们朝彼此对准转动。这导致手柄部件22、24在图1和2中所示的位置处相互连接。此后,需要近端手柄部件22相对于远端手柄部件24接近90度的转动以分离这些组件。因此,阻止了在使用中手柄部件22、24的意外分离。在远端手柄部件24上设置波浪状肋46用于抓握远端手柄部件以将远端手柄部件从近端手柄部件22上分离和分离。波浪形肋46提示医疗技师(因为肋不但围绕针的纵向轴线LA而且沿针的轴向延伸)首先需要扭转接着轴向移动以实现近端手柄部件22和探针18从远端手柄部件24和套管20上分离。
探针18的近端端部伸进近端手柄部件22的开口中央处,并以适当的方式固定到近端手柄部件上。例如,手柄部件22可以围绕探针18模制或者通过胶粘将探针连到近端手柄部件上。近端手柄部件22可以由聚合物或其它材料构成。虽然手柄部件22在附图中显示成不透明的,但是手柄部件22可以是部分透明或完全透明的。套管20的近端端部伸进远端手柄部件24的位于其中心的管状伸出部分66。套管20以适当的方式安装到远端手柄部件24上。例如,远端手柄部件24可以围绕套管20模制或者可以将套管粘到远端手柄部件上。远端手柄部件24可以由聚合物或其它材料构成。虽然手柄部件24显示为不透明的,但是手柄部件24可以是部分透明或完全透明的。
针组件10进一步包括限深器单元(宽泛地,“操作部件”),总体用50指代。限深器单元包括限深器52,该限深器52具有大体为锥形的部分54,带有从中突出的圆柱状鼻部56,大概让人回想起太空舱的形状。锥形部分54具有与患者的身体接合以限制人体内针14穿刺深度的环形底部止动表面58。大体位于限深器52的底部中央的毂59的尺寸和形状适于通过可释放的干涉配合对管(未显示)进行接纳并保持。该管封盖套管20和探针18的锐利端28、32,并通过在使用针组件10之前拽脱毂59来移除该管。
限深器单元50进一步包括狭长的、管状螺纹部件,总体用60指代,限深器52可螺旋地安装在其上。螺纹部件60具有完全延伸通过该螺纹部件长度的轴向延伸通道61(图3)。通道61接纳针14贯穿螺纹部件60。参考图5,螺纹部件60包括具有螺纹64的定位杆62。该螺纹部件60的连接器(总体用66指代)包括两个臂68,所述臂从定位杆向上伸出并具有在它们的自由端向内径向伸出的指70。臂68定位在螺纹部件60的沿直径的相对侧。连接器66可释放地将该螺纹部件60和限深器52连接到远端手柄部件24,如下文中将更充分的进行描述。虽然定位杆62和连接器66显示为一体件,但是连接器可以与定位杆分离地形成。而且,在不脱离本发明范围的情况下,可以省去定位杆62并且连接器66能将限深器52直接连到远端手柄部件24上。
如图4所示,限深器52具有延伸贯穿限深器的整个长度并在其底端包括一个直径较大部分74A和直径较小部分74B的轴向延伸通道74(如图4中的定向)。直径较大部分74A将螺纹部件60的定位杆62接纳到限深器中。直径较小部分74B允许针14穿出限深器52。直径较大部分74A具有与定位杆62的螺纹64相啮合的螺纹76。以图1中箭头A1所示方向绕螺纹部件60的纵向轴线(其大体与针14的纵向轴线LA重合)旋转限深器52造成限深器相对于定位杆62朝螺纹部件的远端端部移动。以图1中箭头A3所示的相反方向在定位杆62上旋转限深器52造成限深器朝螺纹部件60的近端端部移动。朝螺纹部件60的远端端部移动具有缩短位于套管20与探针18的锐利远端尖端28、32和限深器52的止动表面58之间的针14长度的效果。因此减少了在体内针14穿刺深度的可能性。朝螺纹部件60的近端端部移动限深器52增加了位于锐利尖端28、32和限深器52的止动表面58之间的针14的长度。因此增大了在体内针14穿刺深度的可能性。这样通过旋转定位杆62上的限深器52,可以选择在患者体内针14的特别限定的穿刺深度。其中,这能够防止针14对其目标骨穿刺过度及时体内其它区域造成无意的损伤。
沿螺纹部件60的长度调节限深器52允许在针14的有效长度和可选的穿刺深度上有相当大的变化。然而,在一些例子中充分应用从远端手柄部件24的管部分66向外伸出的针14的整个长度以到达目标骨是必须的或者是想要的。通过从远端手柄部件24上拆除螺纹部件60,限深器单元50能够从针组件10上移除。
通过形成于远端手柄部件的突出管部分(总体用82指代)内的沿周向延伸的狭槽80接纳臂68的指70(见图7和9),螺纹部件60被连接到远端手柄部件24。管部分82包括接纳套管20(在图7和9中被移除)的孔83并允许探针18穿入该套管内。在不脱离本发明范围的情况下,螺纹部件或限深器可以连接在针组件的其它位置。狭槽80各自在该狭槽的周向端部开口并在狭槽的另一端包括端壁84。端壁84相对于手柄12定位指70并且确定螺纹部件60的位置。指70和狭槽80成形为用于将指保持在狭槽中,由此来防止螺纹部件不经意地从远端手柄部件24上分离。更具体地,每个指70具有大体位于指中央的三角形凹槽70A。每个狭槽80具有位于狭槽中央的相应的三角形突起80A。
当三角形凹槽80A中接纳三角形突起70A时,螺纹部件60被保持而不能相对于远端手柄部件24的管部分82旋转(图1和9)。这样,防止了螺纹部件60不经意地从远端手柄部件24上脱开。通过施加足够的力,可以克服三角形凹槽70A和三角形突起80A的互锁连接,以将螺纹部件60从远端手柄部件24上释放。为了将螺纹部件60连到远端手柄部件24,螺纹部件以箭头A3所指的相反方向从图2的位置转回到图1的位置。每个指70的锥形导向边缘部分70B首先进入其各自的狭槽80并最终接合三角形突起80A。导向边缘部分70B的锥形形状允许每个臂68在相对于针14的纵向轴线LA的径向向外方向上有少量的弹性偏斜。当继续旋转螺纹部件60时,每个三角形凹槽70A最终形成与相对应的三角形突起80A的套准。臂74的材料的弹性将凹槽70A向下压在三角形突起80A上,使得该突起部分地接纳于该凹槽内以保持连接。技师将会感受到触觉或听觉的咬合作为确信螺纹部件60被固定在适当位置这一套准事件的结果。通过在箭头A3方向上施加足够的扭矩,指76可以旋转以通过臂78的偏斜将三角形凹槽70A移离三角形凸起80A。应该理解的是突起和凹槽的形状也可以不是三角形的。而且,突起可以位于指上而凹槽位于手柄的狭槽中。更进一步,在本发明的范围内保持特征可以被省略。
为了释放螺纹部件60,并因此将限深器单元50从与远端手柄部件24的连接中释放,连接器66(并因此整个螺纹部件60)在箭头A3所指的方向上从图1所示的连接位置被旋转大约90度到图2所示的释放位置。旋转连接器66使指70从狭槽80中移出以便限深器单元50不再连接远端手柄部件24。该连接可以描述为“卡口连接”。然而,应该理解的是,在本发明的范围内也使用包括非旋转连接的其它类型的连接。一般而言,理想的是快速释放连接(但是在本发明中不是强制的)。对于旋转连接,理想的是连接器转动不到360度而释放连接,更理想的是需要转动不到180度就释放连接。附图中描述的卡口连接仅需转动大约90度以实现连接和分离。通过将螺纹部件60的连接器66从图2中的位置转回到图1中的位置可以完成连接。
一旦螺纹部件60通过该运动从远端手柄部件24上分离,限深器单元50可自由地沿针14向下滑动并从其远端端脱离,使得限深器单元完全从针组件10上移除,如图3中所示。从管部分82向外伸出的针14的整个长度现在可用于穿刺进患者身体内到达目标骨。如果需要,限深器单元50可以再连接到针14,因为这种拆分是非破坏性的。
大体沿周向延伸的肋88位于限深器52上在锥形部分54和圆柱部分56相交处。应该理解的是,可以将肋(未示出)放置在其它位置,例如放置在螺纹部件60的臂68上。肋88沿螺纹部件60的纵向轴线彼此轴向隔开。肋88的波浪形状通过其圆周区域提示移除限深器50需要围绕螺纹部件60和针14的轴线旋转运动。肋88的轴向区域提示需要沿该轴向进行第二移动。这些给医疗技师提供了如何释放限深器单元50并接着将其滑离针组件的指示。
当介绍本发明的组件或其优选实施例时,冠词“一”、“一个”、“该”和“所述”意为表示一个或多个组件。术语“包含”,“包括”和“具有”意为含有并表示可能有不同于所列组件的另外组件。而且,为了方便,使用“上”、“下”、“顶”和“底”以及这些术语的变形,而非要求任何特殊的组件方位。
在不脱离本发明范围的情况下,可以在上述进行各种变化时,包含在上面所描述和显示在附图中的所有事物意欲解释为说明性的非限定的意义。
Claims (20)
1、一种可变换的针组件(10),包括:
支座结构(12);
具有纵向轴线和锐利端(28、32)的针(14),所述针安装在支座结构上并从该支座结构向外伸出,使得该锐利端大体远离所述支座结构;
适于限制针的穿刺深度的限深器(52);
适于可释放地将限深器连接到针组件的旋转连接器(66),为了增加针的可能穿刺深度,所述可释放的限深器可从所述针上移除。
2、如权利要求1所述的可变换的针组件,其中旋转连接器(66)构造成通过在第一方向上围绕一轴线转动小于360度连接到支座结构(12),并且通过在与第一方向相反的第二方向上围绕所述轴线转动小于360从支座结构上释放。
3、如权利要求2所述的可变换的针组件,其中旋转连接器(66)构造成分别通过在第一和第二方向上转动小于180度而连接到所述支座结构(12)和从该支座结构上释放。
4、如权利要求2所述的可变换的针组件,其中旋转连接器(66)构造成分别通过在第一和第二方向上转动大约90度而连接到所述支座结构(12)和从该支座结构上释放。
5、如权利要求4所述的可变换的针组件,其中旋转连接器(66)和支座结构(12)构造成用于旋转连接器与支座结构的卡口连接。
6、如权利要求5所述的可变换的针组件,其中支座结构(12)包括一对狭槽(80),而旋转连接器包括一对适于接纳在该狭槽内的指(70)。
7、如权利要求6所述的可变换的针组件,其中所述狭槽(80)和所述指(70)的至少一个包括保持结构(70A、80A)以阻止旋转连接器(66)和手柄(12)之间的相对旋转。
8、如权利要求7所述的可变换的针组件,其中保持结构包括位于狭槽(80)中的突起(80A)和位于指(70)上的凹槽(70A),所述突起适于咬合在所述凹槽内以提供接合的触觉确认。
9、如权利要求1所述的可变换的针组件,其中旋转连接器(66)安装限深器(52),用于沿针(14)的长度选择定位以改变穿刺深度范围。
10、如权利要求9所述的可变换的针组件,其中旋转连接器(66)是狭长的并沿其长度具有螺纹(64),限深器(52)具有与旋转连接器的螺纹啮合的螺纹(76)并可在旋转连接器上旋转,以沿针(14)的长度选择性地定位。
11、如权利要求10所述的可变换的针组件,其中旋转连接器(66)和限深器(52)可结合地从针(14)上移除。
12、一种骨针组件(10),包括:
手柄(12);
具有纵向轴线和锐利端(28、32)的针(14),所述针安装在手柄上远离针的锐利端的位置并从该手柄向外伸出;
限深器单元(50),其包括:定位杆(62);安装在定位杆上并可沿该杆的长度沿着杆和沿着针的纵向轴线移动到不同选择位置的限深器(52),该限隙器具有适于限制针的穿刺深度的止动表面(58);以及旋转连接器(66),适于可释放地将所述杆连接到针组件上,所述旋转连接器能够释放所述杆的连接,使得所述杆和限深器可以从针上移除以增大针的可能穿刺深度。
13、如权利要求12所述的骨针组件,其中旋转连接器(66)构造成通过在第一方向上围绕一轴线转动小于360度连接到所述手柄(12),并且通过在与第一方向相反的第二方向上围绕所述轴线转动小于360从所述手柄上释放。
14、如权利要求13所述的骨针组件,其中旋转连接器(66)构造成分别通过在第一和第二方向上转动大约90度来连接到所述手柄(12)和从该手柄上释放。
15、如权利要求14所述的骨针组件,其中手柄(12)包括一对狭槽(80),而旋转连接器(66)包括一对适于接纳在该狭槽内的指(70)。
16、如权利要求12所述的骨针组件,其中旋转连接器(66)和定位杆(62)形成为一体件(60)。
17、如权利要求16所述的骨针组件,其中定位杆(62)是狭长的并沿其长度具有螺纹(64),限深器(52)具有与定位杆的螺纹啮合的螺纹(76)并可在定位杆上旋转,以沿针(14)的长度选择性地定位。
18、一种调节针组件(10)的针(14)的可允许穿刺深度的方法,包括:
释放限深器单元(50)与针组件的旋转连接,所述限深器单元包括沿针的纵向轴线定位并将针的穿刺深度限制到第一深度的限深器(52);
使限深器单元滑离针以露出针的额外长度,用于针穿刺到比第一深度深的第二深度。
19、如权利要求18所述的方法,其中释放限深器单元(50)的连接的步骤包括使将限深器单元连到针组件(10)的旋转连接器(66)相对于针组件旋转小于360度。
20、如权利要求19所述的方法,其中释放限深器单元(50)的连接的步骤包括使旋转连接器(66)相对于针组件(10)旋转大约90度。
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- 2006-05-23 AT AT06010580T patent/ATE554709T1/de active
- 2006-05-23 ES ES06010580T patent/ES2385229T3/es active Active
- 2006-05-24 CA CA002547831A patent/CA2547831A1/en not_active Abandoned
- 2006-05-29 IL IL175988A patent/IL175988A0/en unknown
- 2006-05-29 AU AU2006202282A patent/AU2006202282A1/en not_active Abandoned
- 2006-06-02 MX MXPA06006294A patent/MXPA06006294A/es not_active Application Discontinuation
- 2006-06-02 NO NO20062562A patent/NO20062562L/no not_active Application Discontinuation
- 2006-06-05 SG SG200603815A patent/SG127863A1/en unknown
- 2006-06-05 KR KR1020060050181A patent/KR20060127769A/ko not_active Application Discontinuation
- 2006-06-05 CN CNA2006101257193A patent/CN1895182A/zh active Pending
- 2006-06-06 TW TW095120027A patent/TW200709825A/zh unknown
- 2006-06-06 BR BRPI0602158-1A patent/BRPI0602158A/pt not_active IP Right Cessation
- 2006-06-06 JP JP2006157058A patent/JP2006341095A/ja active Pending
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2010
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CN109381226A (zh) * | 2018-07-30 | 2019-02-26 | 郑州大学第附属医院 | 血液内科骨髓穿刺抽取装置 |
CN109381226B (zh) * | 2018-07-30 | 2021-01-26 | 郑州大学第一附属医院 | 血液内科骨髓穿刺抽取装置 |
Also Published As
Publication number | Publication date |
---|---|
SG127863A1 (en) | 2006-12-29 |
KR20060127769A (ko) | 2006-12-13 |
US8834417B2 (en) | 2014-09-16 |
US20060276747A1 (en) | 2006-12-07 |
NO20062562L (no) | 2006-12-07 |
TW200709825A (en) | 2007-03-16 |
IL175988A0 (en) | 2006-10-05 |
CA2547831A1 (en) | 2006-12-06 |
ATE554709T1 (de) | 2012-05-15 |
EP1731103A1 (en) | 2006-12-13 |
MXPA06006294A (es) | 2007-01-25 |
AU2006202282A1 (en) | 2006-12-21 |
JP2006341095A (ja) | 2006-12-21 |
ES2385229T3 (es) | 2012-07-19 |
EP1731103B1 (en) | 2012-04-25 |
US20100280410A1 (en) | 2010-11-04 |
BRPI0602158A (pt) | 2007-07-17 |
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