CN212038548U - 导入器毂制造组件 - Google Patents

导入器毂制造组件 Download PDF

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CN212038548U
CN212038548U CN201790001597.9U CN201790001597U CN212038548U CN 212038548 U CN212038548 U CN 212038548U CN 201790001597 U CN201790001597 U CN 201790001597U CN 212038548 U CN212038548 U CN 212038548U
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G.芬图兹
M.塔丰
J.德伦
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Abiomed Inc
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    • AHUMAN NECESSITIES
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    • A61M25/00Catheters; Hollow probes
    • A61M25/0009Making of catheters or other medical or surgical tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M25/00Catheters; Hollow probes
    • A61M25/0097Catheters; Hollow probes characterised by the hub
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/753Medical equipment; Accessories therefor
    • B29L2031/7542Catheters

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Abstract

一种导入器毂制造组件,所述组件包括:导入器护套,所述导入器护套形成为具有第一端部和第二端部的圆柱形管,所述导入器护套包括在其内表面上从所述第一端部延伸到所述第二端部的至少一个刻痕线;毂,所述毂围绕所述导入器护套的第一端部,所述毂包括与所述至少一个刻痕线对齐的至少一个缺口;芯杆,所述芯杆构造为插入所述导入器护套中,其中,所述芯杆包括沿所述芯杆的长度延伸的在外表面上的至少一个表面突起;其中,所述至少一个表面突起构造为接触所述至少一个刻痕线,以在所述导入器护套上制造所述毂期间保护所述刻痕线。

Description

导入器毂制造组件
至相关申请的交叉引用
此申请要求2016年12月8日提交的美国实用专利申请号62/431671的优先权,该申请的内容通过引用全部并入本文中。
背景技术
剥离导入器(peel-away introducer)是在心脏导管术(cardiaccatheterization)或其他医疗环境中使用的一次性医疗设备,以将医疗设备输送到血管(vasculature)中。标准的剥离导入器包括联接到护套(sheath)上的近侧(proximal)塑料毂(hub)。医疗设备可通过塑料毂插入并且插入护套中,通过这样可将设备放置在患者的身体中。血管内医疗设备(诸如心脏内血泵、导管、导丝或导线)可通过剥离导入器来导入患者的血管中。一旦医疗设备已经定位,就可去除剥离导入器。在一种途径中,操作人员通过使塑料导入器毂破裂并且剥下护套本体(body)的轴来破坏导入器。为了破坏剥离导入器,操作人员抓住模制的毂,并且在护套的近侧端部处沿轴向缺口(notch)或刻痕(scoring)将其破坏。护套沿穿孔(perforation)或刻痕在护套的一侧或两侧向下撕裂,并且可轴向地剥落。剥离导入器允许在医疗设备通过导入器插入患者中之后去除导入器,而不会干扰或去除医疗设备。
在常用的制造技术中,剥离导入器由挤压的(extruded)塑料管形成,带有在毂本体中的轴向缺口。毂本体被包覆模制(overmold)到挤压的塑料护套或管上,毂本体包括缺口和/或翼部,以便于破坏。塑料管首先组装在芯销(corepin)或芯杆(mandrel)之上,芯销或芯杆限定并且保持毂的内腔以及护套的内直径和几何结构。然后,将芯杆和挤压的护套放入模具腔中,模具腔允许熔化的塑料被注入并且冷却,产生塑料毂,用户破坏塑料毂来开始剥离。
在包覆模制技术中,在将芯杆和挤压的护套放入模具中之后,将熔化的塑料注入模具中。塑料在护套周围以模具的形状冷却,形成毂本体。注入塑料在它被引导至模具时保持在高温下,并且来自围绕着护套的注入塑料的热可为足以加热护套塑料的顶层,使得护套的塑料可开始在被称为回流(reflowing)的过程中流动。如果注入塑料的热回流到刻痕/缺口中的一个或多个中,则在模制过程期间,布置在组件的毂内侧的护套的部分可失去其内部刻痕或缺口。结果,因为护套不包括刻痕/缺口中的一个的减弱区段,破坏毂所需的力可为过大的或不一致的。此外,当护套的塑料回流且在毂之内的护套的区段中的刻痕被去除时,存在增加的风险,即:在毂的破坏期间,撕裂将不会传播到包覆模制的毂中的区段外面的护套本体中的刻痕,导致有缺陷的剥离导入器护套。
实用新型内容
本文中描述的是用于制作剥离导入器同时保持护套的刻痕的方法和系统,该剥离导入器包括包覆模制的毂。在包覆模制期间,尽管应用了极端的热,但设计为带有外表面突起的芯杆贯穿注射模制过程保持了护套的内部刻痕,护套组装在芯杆上。在保持护套的内部刻痕的情况下,当毂由操作人员破坏时,在包覆模制的毂中的护套管的近侧区段更容易地破坏并且以更小的所需力来破坏。通过本文中所公开的方法制造的护套也可更容易地剥落。
在一个方面中,用于制造医疗导入器的方法包括将导入器护套放置到芯杆上,并且将导入器毂包覆模制到导入器护套的近侧端部上。导入器护套具有在内表面上形成的一个或多个刻痕线。芯杆具有若干个表面突起,使得当导入器护套定位在芯杆上时,表面突起中的各个接触在导入器护套上形成的刻痕线中的一个,并且防止来自导入器毂的塑料材料接触刻痕线。
在一些实施方式中,芯杆上的表面突起的数量等于在护套上形成的刻痕线的数量。在一些实施方式中,导入器毂包括若干个缺口。在一些实施方式中,导入器毂中的缺口的数量等于在护套上形成的刻痕线的数量,并且还等于芯杆上的表面突起的数量。在一些实施方式中,若干个缺口中的至少一个与在护套上形成的刻痕线对齐。在一些实施方式中,至少两个缺口与在护套上形成的刻痕线对齐。在一些实施方式中,导入器毂和导入器护套构造为沿缺口和刻痕线被破坏成至少两个片。
在一些实施方式中,芯杆上的表面突起的数量并不等于在护套上形成的刻痕线的数量。在一些实施方式中,在导入器护套的内表面上形成的若干个刻痕线中的至少一个在包覆模制期间被去除。在一些实施方式中,芯杆上的表面突起的数量等于护套中的刻痕线的期望的数量。
在回顾本公开之后,本领域技术人员将想到变动和修改。公开的特征可与本文中所描述的一个或多个其他特征进行任何组合和子组合(包括多个从属组合和子组合)来实施。上文描述或阐示的各种特征(包括其任何构件)可组合或集成在其他系统中。此外,某些特性可省略或不实施。
附图说明
当考虑结合附图进行的以下详细描述时,前述的和其他的目的和优点将显而易见,在附图中,相似的参考符号始终表示相似的部件,并且在附图中:
图1A示出了根据实施例的在制造过程期间模制在护套之上的导入器毂的俯视图;
图1B示出了芯杆的透视视图,芯杆具有连续的表面突起和构造为一系列突起的表面突起二者;
图2示出了根据实施例的在制造过程期间正插入护套中的芯杆的透视视图;
图3示出了根据实施例的在制造过程期间完全插入护套中的芯杆的透视视图;
图4示出了根据实施例的具有表面突起的芯杆的透视视图;
图5示出了根据实施例的剥离导入器毂组件的透视视图;
图6示出了根据实施例的剥离导入器毂的备选视图;并且
图7示出了根据实施例的用于制造剥离导入器毂的方法。
具体实施方式
随后以下是与制造剥离医疗导入器的发明方法有关的各种概念的更详细描述。应当领会的是,因为所公开的概念不限于任何特定的实施的方式,故以上介绍的和以下更详细地讨论的各种概念可以以诸多方式实施。例如,虽然剥离导入器护套在本文中被描绘为具有将导入器毂和下面的护套分成两个区段的两个轴向缺口,但导入器毂和护套可制造为具有任何数量的轴向缺口或穿孔,以便允许沿轴向方向分开成任何数量的部分。此外,尽管芯杆的表面突起被描述为与保持用于在剥离导入器中使用的护套上的刻痕线有关,但芯杆上的表面突起可用来在任何包覆模制或热处理过程期间保护护套的内部几何结构的其他特征。实施方式和应用的示例主要使出于阐示的目的而提供。
本文中所描述的方法和系统使得能够在保持护套的刻痕的同时生产剥离导入器,该剥离导入器包括包覆模制的毂。用于固定毂和护套的芯杆可具有沿其外表面形成的一个或多个外长形突起。突起可接触护套的对应的内部刻痕中的各个,使得在施加热时,刻痕线贯穿注射模制过程被保持,而不会被来自毂或护套的材料(例如,已在热施加期间熔化的塑料)填充。在使护套的内部刻痕保持的情况下,与如果此材料已流入刻痕线中并且硬化相比,当毂由操作人员破坏时,在包覆模制的毂中的护套管的近侧区段更容易破坏并且需要更小的力来破坏。另外,在使导入器护套中的刻痕线保持的情况下,可破坏毂并且纵向地剥落护套,以便于去除导入器毂组件。本文中所描述的包覆模制方法促进了根据设计的导入器毂的适当破坏和护套的剥落。
图1A示出了导入器毂和芯杆组件100的俯视图,导入器毂和芯杆组件100包括在制造过程期间模制在导入器护套104之上的毂本体112。导入器毂组件103包括:导入器护套104、第一刻痕线110a、第二刻痕线110b、导入器毂组件103、毂本体112、第一缺口114a、第二缺口114b、第一翼部116a和第二翼部116b。第一刻痕线110a和第二刻痕线110b在导入器护套104的相对侧上。导入器护套104定位在芯杆101(也称为芯销)之上,在芯杆101的相对侧上具有第一表面突起102a和第二表面突起102b。第一表面突起102a和第二表面突起102b构造为与导入器护套104中的第一刻痕线110a和第二刻痕线110b相重合。在将导入器护套104定位在芯杆101之上,且第一表面突起102a和第二表面突起102b与导入器护套104中的第一刻痕线110a和第二刻痕线110b对齐之后,导入器毂本体112可包覆模制在导入器护套104的近侧端部之上。第一缺口114a和第二缺口114b与导入器护套104中的第一刻痕线110a和第二刻痕线110b对齐,以便于导入器毂组件103的破坏。
带有第一表面突起102a和第二表面突起102b的芯杆101成形为保持导入器护套104的内部几何结构。导入器护套104紧密地配合在芯杆101之上,以准备用于导入器毂组件103的包覆模制。在芯杆101的外表面108与导入器护套104的内表面105之间可存在一些距离106,但在大多数情况下,距离106被最小化,使得芯杆101的外表面108与导入器护套104的内表面105在有待在包覆模制期间被保护的区域中(诸如在第一刻痕线110a和第二刻痕线110b处)接触。在一些实施方式中,在包覆模制期间不被保护的区域中的在芯杆101的外表面108与导入器护套104的内表面105之间的距离106例如为0mm、0.1mm、0.2mm、0.3mm或0.4mm,或者它能以任何其他合适的距离来构建。表面突起102a和102b可设置在离芯杆101的本体的期望高度处。在一些实施方式中,表面突起102a和102b从芯杆101的表面延伸大约0.05mm、0.1mm、0.2mm、0.3mm或任何合适的高度。在某些实施例中,芯杆101的外表面108与导入器护套104的内表面105之间的距离为在大约0mm与0.4mm之间,而突起从芯杆101的外表面108延伸并且具有大约0.05mm至0.3mm的高度。在一些实施方式中,表面突起具有为正方形的、矩形的、圆柱形的或任何其他合适形状的形状。在一些实施方式中,突起沿芯杆纵向地延伸。在一些实施方式中,突起沿芯杆以螺旋延伸。
在导入器护套104配合在芯杆101之上的情况下,导入器毂组件103可诸如通过在导入器护套104之上注射模制来形成到护套104上。注射模制过程使导入器护套104的近侧端部暴露于高温和/或压力,高温和/或压力可导致塑料的回流,导入器护套104由塑料形成。如果第一刻痕线110a和第二刻痕线110b没有受到相应突起的保护,则回流的塑料可覆盖或完全填充在导入器护套104中的第一刻痕线110a和第二刻痕线110b。第一表面突起102a和第二表面突起102b延伸到第一刻痕线110a和第二刻痕线110b中,使得即使导入器护套104被加热并且发生回流,第一刻痕线110a和第二刻痕线110b也被保持。
如果第一刻痕线110a和第二刻痕线110b在构建期间被塑料的回流改变或去除,则在使用之后的导入器毂组件103的破坏期间,导入器护套104可无法适当地分离。当向第一翼部116a和第二翼部116b施加向外或向下的力时,毂本体112可按设计在第一缺口114a和第二缺口114b处破坏。然而,如果第一刻痕线110a和第二刻痕线110b已经损坏,则分离可无法传播到导入器护套104,或无法从导入器护套104的近侧部分传播到并不与导入器毂组件103接触的更远的部分。结果,对于操作人员来说,施加以便开始导入器毂组件103的破坏所需的额外的或过大的力可为困难的或不舒服的。
虽然导入器护套104在此被描绘为具有两个刻痕线(第一刻痕线110a和第二刻痕线110b),但导入器护套104可构造为带有任何数量的刻痕线。在一些实施方式中,导入器护套构造为带有一个刻痕线、两个刻痕线、三个刻痕线、四个刻痕线、六个刻痕线、十个刻痕线或任何其他合适数量的刻痕线。刻痕线可形成为穿孔、刻痕、凹痕,或通过任何其他合适的手段形成。
芯杆101在此被描绘为具有两个表面突起(第一表面突起102a和第二表面突起102b),但可具有任何合适数量的表面突起。在一些实施方式中,芯杆101具有一个表面突起、两个表面突起、三个表面突起、四个表面突起、六个表面突起、或任何其他合适数量的表面突起。芯杆101可具有与导入器护套104上的刻痕线的数量相等的表面突起的数量。备选地,芯杆101可具有比导入器护套104上的刻痕线的数量更少的表面突起的数量。如果表面突起的数量小于导入器护套104上刻痕线的数量,则在导入器毂组件103覆盖物的制造期间,可通过材料的回流来去除在导入器护套104上的任何额外的刻痕线。例如,如果导入器护套104具有三个刻痕线,但仅有两个是期望用于导入器毂组件的,则在包覆模制期间,可使用仅带有两个表面突起的芯杆来保护在导入器护套上的三个刻痕线中的两个。备选地,芯杆101可具有比导入器护套104上的刻痕线的数量更大的表面突起的数量,使得仅总表面突起中的一些接触刻痕线。这可允许例如芯杆101构造为组装具有变化数量的刻痕线的护套。
芯杆101上的表面突起可与导入器护套104上的刻痕线的类型匹配,如图1B中所示。图1B包括从基体120延伸的芯杆101,芯杆101带有第一表面突起122a和第二表面突起122b。第一表面突起122a构造为从芯杆101的外表面的连续突起,其将沿整个长度接触导入器护套的刻痕线而没有间断。第二表面突起122b构造为沿芯杆101排布在线上的一系列表面突起。第二表面突起122b仅在个体突起中的各个处接触导入器护套,并且在突起之间的空间处并不接触导入器护套。例如,一系列表面突起(诸如,第二表面突起122b)可用来保护构造为穿孔的刻痕线。
图2示出了部分地插入导入器护套204中以准备用于导入器毂的包覆模制的芯杆201的透视视图。芯杆201包括基体220、第一表面突起202a和第二表面突起202b。第一表面突起202a和第二表面突起202b平行于芯杆201的纵向轴线207。导入器护套204包括近侧端部209、第一刻痕线210a和第二刻痕线210b,第一刻痕线210a和第二刻痕线210b平行于芯杆201的纵向轴线207对齐,芯杆201的纵向轴线207与导入器护套204的纵向轴线207重合,导入器护套204放置在芯杆201上。第一表面突起202a和第二表面突起202b与导入器护套204的第一刻痕线210a和第二刻痕线210b对齐,以便在导入器护套204的近侧端部209处在导入器毂的包覆模制期间保护导入器护套204的刻痕线和内部几何结构。在导入器毂的包覆模制之前,导入器护套204在箭头211的方向上插入芯杆201之上。
图3示出了在将导入器毂包覆模制到导入器护套304上之前以最终构造完全插入导入器护套304中的芯杆301的透视视图。芯杆301包括基体320和一个或多个表面突起302。导入器护套301包括平行于导入器护套304的纵向轴线307对齐的第一刻痕线310。表面突起302与第一刻痕线310对齐,以在进一步处理期间保护第一刻痕线310免遭回流。导入器护套304设计为当导入器毂组件被破坏时沿第一刻痕线310撕裂。然而,如果第一刻痕线310和任何其他刻痕线没有被保护和保持,则第一刻痕线310可被来自导入器毂本体的包覆模制的热所损坏或被去除。在导入器毂本体的包覆模制期间,芯杆301的表面突起302保护导入器护套304的内部几何结构(包括第一刻痕线310),使得第一刻痕线310保留。芯杆301尺寸确定为配合在导入器护套304内,并且芯杆上的表面突起302同样尺寸确定为与导入器护套304上的第一刻痕线310对齐并对应。
图4示出了具有表面突起402a和402b的芯杆401的透视视图。芯杆401包括:基体420、第一表面突起402a和第二表面突起402b。第一表面突起402a和第二表面突起402b平行于纵向轴线沿圆柱形芯杆401延伸。第一表面突起402a和第二表面突起402b尺寸确定为并且定位为对应于导入器护套的内部几何结构和刻痕线,使得在导入器护套上制造导入器毂期间,导入器护套的内部几何结构和空间被保持。
虽然在图4中示出了两个表面突起402(第一表面突起402a和第二表面突起402b),但芯杆401可具有任何合适数量或定向的表面突起,以保护和保持放置在芯杆401之上的导入器护套上的刻痕线。芯杆401可具有一个、两个、三个、四个、六个、八个或任何合适数量的表面突起。在一些实施方式中,芯杆401包括与导入器护套上的刻痕线的数量相同的表面突起的数量。在一些实施方式中,芯杆401包括比导入器护套上的刻痕线的数量更小的表面突起的数量。在此类情况下,导入器护套上的额外刻痕线在包覆模制过程期间将通过护套的塑料的回流来去除。在包覆模制期间通过不以芯杆保护刻痕线来去除不必要的刻痕线,可允许使用单一类型的导入器护套来制备多种样式的导入器毂组件。如此处所示,表面突起可沿纵向轴线407对齐,或者它们可与纵向轴线成角度定向或者在芯杆的外表面周围在螺旋定向上定向。
在图4中示出的第一表面突起402a和第二表面突起402b被描绘为芯杆401的连续凸起区段。在一些实施方式中,芯杆401上的表面突起构造为一系列凸起的点,以便保护导入器护套的内部的特定几何结构。在一些实施方式中,表面突起可为连续凸起区段,连续凸起区段构造为脊,带有成角度的顶部、正方形顶部或圆形顶部。表面突起的形状可与导入器护套中的刻痕线的形状相匹配。
图5示出了剥离导入器毂组件503的透视视图。剥离导入器毂组件503包括:毂本体512、第一翼部516a、第二翼部516b、第一缺口514a、第二缺口514b、导入器护套504、第一刻痕线510a、第二刻痕线510b和贯通腔524。第一缺口514a与第一刻痕线510a对齐,并且第二缺口514b与第二刻痕线510b对齐。第一翼部516a和第二翼部516b在毂本体512的相对侧上延伸,使得第一缺口514a和第二缺口514b定位于第一翼部516a与第二翼部516b之间。
医疗设备或导管可通过导入器毂组件503中的贯通腔524插入患者中。在已插入设备或导管之后,操作人员可通过向第一翼部516a和第二翼部516b施加力来破坏导入器毂组件503,将导入器毂组件503破坏成两个或更多个片。导入器毂组件503设计为:当在第一翼部516a和第二翼部516b上施加该力时,在第一缺口514a和第二缺口514b处破坏。第一缺口514a和第二缺口514b分别与第一刻痕线510a和第二刻痕线510b对齐,允许由操作人员施加的破坏力将毂本体512破坏,以从第一缺口514a传播到第一刻痕线510a并且从第二缺口514b传播到第二刻痕线510b,以允许导入器毂组件503被破坏成两片并且允许导入器护套504被剥离。缺口与在毂本体512的包覆模制期间已被保护免遭损坏的刻痕线的良好对齐允许导入器毂组件在施加名义(nominal)破坏力的情况下容易地破坏和剥落。
图6示出了图5的剥离导入器毂503的备选视图,阐示了与第一缺口614a和第一刻痕线610a相对的第二缺口614b与第二刻痕线610b的对齐。第二缺口614b与第二刻痕线610b(以及第一缺口614a和第一刻痕线610a)的对齐允许破坏力从毂本体612转移到导入器护套604。如果导入器护套604的刻痕线610并未已在导入器毂本体612的包覆模制期间被来自导入器护套604的塑料材料的流损坏或去除,则力可没有意外地从毂本体612传播到导入器护套604。
如果导入器护套604的刻痕线610已在包覆模制期间被来自导入器护套604的塑料材料的回流损坏或去除,则导入器护套604可能不会在毂本体612处或在毂本体612下方容易地分裂开。这可需要向毂本体612或向导入器护套604施加额外的或过度的力,以便破坏毂本体612和导入器护套。备选地,由于导入器护套604中损坏的刻痕线引起的导入器毂组件603的故障可导致有缺陷的导入器毂组件,有缺陷的导入器毂组件不可按设计进行剥离。然后可使用备选的或次优的用于去除的方法,备选的或次优的用于去除的方法可需要额外的工具。
图7示出了用于制造剥离导入器毂(诸如,图1A的导入器毂组件103、图5的毂组件503或任何其他合适的毂组件)的方法700。在步骤702处,该方法包括将导入器护套放置在包括若干个表面突起的芯杆上。表面突起设计为接触在导入器护套的内表面中的刻痕线,以便导入器护套的内部的几何结构,导入器护套的内部的几何结构保护包括刻痕线。芯杆可包括与导入器护套上的刻痕线的数量相同数量的表面突起,或在一些实施方式中,如果若干个刻痕线设计为在下一步骤期间被去除,则芯杆包括更少数量的表面突起。然后,将芯杆和挤压的护套放置到模具腔中,允许熔化的塑料被注入和冷却。
在步骤704处,芯杆的表面突起与导入器护套的刻痕线对齐。导入器护套紧密地配合在芯杆之上,并且导入器护套的内部上的刻痕线与芯杆的表面突起接触。在一些实施方式中,在将芯杆插入导入器护套中之前或在插入的同时,芯杆的表面突起可与导入器护套的刻痕线对齐。表面突起的形状、尺寸和高度可与导入器护套中的刻痕线相匹配。在一些实施方式中,表面突起可为连续凸起区段,连续凸起区段构造为脊,带有成角度的顶部、正方形顶部或圆形顶部。芯杆上的表面突起可为离芯杆的本体多种高度,以匹配导入器护套中的刻痕线。在一些实施方式中,表面突起从芯杆的表面延伸0.05mm、0.1mm、0.2mm、0.3mm或任何合适的高度。在一些实施方式中,在芯杆的外表面与导入器护套的内表面之间存在一些距离,但在大多数情况下,该距离被最小化,使得芯杆的外表面与导入器护套的内表面至少在有待在进一步制造期间被保护免遭回流的区域中接触。在一些实施方式中,在将不会受保护的区域中,芯杆的外表面与导入器护套的内表面之间的距离为0mm、0.1mm、0.2mm、0.3mm、0.4mm或任何其他合适的距离。在一些实施方式中,表面突起102a和102b从芯杆101的表面延伸大约0.05mm、0.1mm、0.2mm、0.3mm或任何合适的高度。在某些实施方式中,芯杆的外表面与导入器护套的内表面之间的距离为在大约0mm与0.4mm之间,而突起从芯杆的外表面延伸并且具有大约0.05mm至0.3mm的高度。
在步骤706处,该方法包括将导入器毂包覆模制到导入器护套的近侧端部上。包覆模制过程使用了加热,加热可导致导入器护套的塑料材料熔化和回流。刻痕线的区域通过它们与芯杆的表面突起接触来受保护免于由回流塑料覆盖,并且贯穿包覆模制过程被保持。不被芯杆上的表面突起保护的区域可回流并且填充任何额外的刻痕线。
导入器毂的包覆模制还可包括将一个或多个翼部包覆模制到导入器毂上,以帮助在使用之后破坏毂。在将导入器毂包覆模制到护套的近侧端部上之后,从芯杆上去除导入器毂和导入器护套。导入器护套包括在导入器毂和导入器毂本体的包覆模制期间已由芯杆保持的若干个刻痕线。刻痕线对应于包覆模制的导入器毂中的缺口。在以在翼部上施加名义力来使用之后,导入器毂可在缺口和刻痕线处分离为两个或更多个片。一旦导入器毂已在缺口和刻痕线处分离,则导入器护套可沿刻痕线剥离,以去除导入器毂组件。
前述仅为对本公开的原理的阐示,并且所述方法和系统可不同于所描述的实施方式来实践,所描述的实施方式是出于阐示的目的而非限制的目的而表示的。将理解的是,尽管示出为用于在剥离导入器毂和护套的制造中使用,但本文中所公开的方法和系统可应用于在热处理期间必须保持护套的内部几何结构的其他系统。
在回顾本公开之后,本领域技术人员将想到变动和修改。例如,可有益地选择芯杆的表面突起的几何结构和定向,以匹配导入器护套的内部几何结构,或者补足内部几何结构或期望的内部几何结构。所公开的特征可与本文中所描述的一个或多个其他特征进行任何组合和子组合(包括多个从属组合和子组合)来实施。上文描述或阐示的各种特征(包括其任何构件)可组合或集成在其他系统中。此外,某些特佂可省略或不实施。
在不偏离本文中所公开的信息的范围的情况下,变化、替换和改变的示例可由本领域技术人员确定并且可被做出。

Claims (13)

1.一种导入器毂制造组件,所述组件包括:
导入器护套,所述导入器护套形成为具有第一端部和第二端部的圆柱形管,所述导入器护套包括在其内表面上从所述第一端部延伸到所述第二端部的至少一个刻痕线;
毂,所述毂围绕所述导入器护套的第一端部,所述毂包括与所述至少一个刻痕线对齐的至少一个缺口;
芯杆,所述芯杆构造为插入所述导入器护套中,其中,所述芯杆包括沿所述芯杆的长度延伸的在外表面上的至少一个表面突起;
其中,所述至少一个表面突起构造为接触所述至少一个刻痕线,以在所述导入器护套上制造所述毂期间保护所述刻痕线。
2.根据权利要求1所述的导入器毂制造组件,其中,所述至少一个表面突起沿着所述芯杆纵向地延伸。
3.根据权利要求1所述的导入器毂制造组件,其中,所述至少一个表面突起在所述芯杆周围螺旋地延伸。
4.根据权利要求1所述的导入器毂制造组件,其中,所述至少一个表面突起构造为连续突起。
5.根据权利要求1所述的导入器毂制造组件,其中,所述至少一个表面突起构造为沿着所述芯杆的长度延伸的一系列突起。
6.根据权利要求1所述的导入器毂制造组件,其中,所述毂由受热的塑料形成。
7.根据权利要求6所述的导入器毂制造组件,其中,所述导入器护套由塑料形成,所述塑料在经受高于所述塑料的熔化温度的热时回流。
8.根据权利要求1所述的导入器毂制造组件,其中,所述毂包括排布在所述毂的相对侧处的第一缺口和第二缺口。
9.根据权利要求8所述的导入器毂制造组件,其中,所述毂构造为在所述第一缺口和所述第二缺口处破坏。
10.根据权利要求1所述的导入器毂制造组件,其中,所述导入器护套构造为当所述毂被破坏时沿所述至少一个刻痕线撕裂。
11.根据权利要求1所述的导入器毂制造组件,其中,表面突起的数量大于刻痕线的数量。
12.根据权利要求1所述的导入器毂制造组件,其中,表面突起的数量小于刻痕线的数量。
13.根据权利要求1所述的导入器毂制造组件,其中,表面突起的数量等于刻痕线的数量。
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