CN103997992B - 用于管的内部针刺防护杆 - Google Patents
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Abstract
本申请总体描述的是与可插入接入口管以用于防止流体泄漏的杆相关的设备、系统和方法。更具体地说,杆或复数个杆可大于接入口管的内径,从而提供流体密封以将流体保持在接入口管内。然而,这些流体密封可能不是绝对的,仍然可允许一定程度的泄漏。在一个实施例中,通过包括进一步压靠在接入口管的内径上的倒钩,流体的密封可以得到大大改善。杆自身虽然不能由针穿透,但是通过采用球和承窝的接头连接到下一杆而仍可以允许接入口管的弯曲柔性。在这种方式下,提高了防流体泄漏的性能同时保留了接入口管的可动性。
Description
技术领域
本发明总体涉及用于治疗肥胖和/或肥胖相关疾病的医疗系统、装置和其应用。更具体地,本发明涉及用于在与用作可植入患者中的胃束带系统的一部分的接入口相关时防止针刺的一个或多个杆。
背景技术
可调节胃束带设备提供了对胃旁路手术和其它常规外科减肥方法的有效的且基本上较少侵入性的替代物。尽管诸如胃旁路手术等侵入性减肥方法具有积极成果,但是已经认识到,持续的减肥可通过利用腹腔镜放置的胃束带来实现,例如,(Allergan,Inc.,Irvine,CA)的胃束带或(Allergan,Inc.,Irvine,CA)的胃束带。通常,胃束带放置在患者胃的贲门或上部的周围,从而形成限制食物向胃的下部通过的小孔(stoma)。当该小孔具有由胃束带限制的适当尺寸时,保留在胃上部的食物可提供过饱腹感或满腹感,其阻止了暴饮暴食。不像胃旁路方法,胃束带设备是可逆的,不需要永久改变胃肠道。胃束带系统的实例被公开在Roslin等人的美国专利公开No.2006/0235448中,其全部公开内容通过该具体引用包含在本文中。
经过一段时间,由胃束带形成的小孔可能需要调节以便保持适当尺寸,该尺寸既不能过于限制也不能过于消极。因此,现有技术的胃束带系统提供了连接到胃束带的可扩展或可膨胀部分的皮下流体接入口(“接入口”)。通过经由插入接入口中的皮下针增加流体到可膨胀部分或从可膨胀部分移除流体,胃束带的有效尺寸能够被调节以提供更紧或更松的束紧。
通常,接入口,并且尤其是从接入口通往储存器或胃束带的可膨胀部分的管可能易受打偏的针的影响。也就是说,打偏的针可刺破该管并使流体从胃束带系统漏出,这可能最终导致胃束带功效降低。在某些情况下,整个胃束带系统然后可能需要被从身体中取出或医生可能需要执行操作来修补被刺破的管。
外部管护罩已被用作保护管不被偏离的针刺破的一个选择。然而,管护罩增加了体积,这可能会在某些患者中降低管的生物相容性和/或减少患者体内的胃束带系统的舒适性。
所需要的是一种内部的管保护系统,其能够减少泄漏的可能性和/或严重性,同时仍保持当前包含在胃束带系统中的相对小体积的管。
发明内容
本申请总体描述的是与可插入接入口管以用于防止流体泄漏的杆相关的设备、系统和方法。更具体地说,所述杆或复数个杆可大于接入口管的内径,从而提供流体密封以将流体保持在接入口管内。然而,这些流体密封可能不是绝对的,仍然可允许某一小程度的泄漏。在一个实施例中,通过包括进一步压靠在接入口管的内径上的倒钩,流体的密封可以得到大大改善。杆自身虽然在法向施加的力下不能由针穿透,但是通过采用球和承窝的接头连接到下一杆而仍可以允许接入口管的弯曲柔性。在这种方式下,提高了防流体泄漏的性能同时保留了接入口管的可动性。
在一个实施例中,提供了一种与胃束带一起使用来治疗肥胖的接入口。所述接入口可以包括:包围流体储存器的外壳;导管,其具有连接到所述流体储存器的第一端部和球根状第二端部;管,其具有限定第一通道的内表面、连接到所述导管的所述球根状第二端部的第一端部和连接到所述胃束带的可膨胀部分的第二端部。所述管还具有第一防护杆,其设置在所述管的第一通道内,并且构造成防止第一针穿过所述第一防护杆。所述第一防护杆还可包括:第一承窝形尾部,其用于接纳所述导管的球根状第二端部;第一球形头部;第一轴部,其设置在所述第一承窝形尾部与所述第一球形头部之间,所述第一轴部限定用于运送流体的第二通道;以及第一倒钩部,其从所述第一轴部突出,并且构造成延伸到所述管的内表面中。
在一个实施例中,提供了一种用于在接入口和胃束带的可膨胀部分之间运送流体的柔性管。所述柔性管可包括:本体,其构造成具有可附接到所述接入口的导管的球根状端部的第一端部和可附接到所述可膨胀部分的第二端部,所述本体具有限定用于运送流体的第一通道的内表面;以及第一防护杆,其设置在所述本体的第一通道内,并且构造成防止针穿过所述第一防护杆。所述第一防护杆还可包括:第一承窝形尾部,其用于接纳所述导管的球根状第二端部;第一球形头部;第一轴部,其设置在所述第一承窝形尾部与所述第一球形头部之间,所述第一轴部限定用于运送流体的第二通道;以及第一倒钩部,其从所述第一轴部突出,并且构造成延伸到所述本体的内表面中。
在一个实施例中,提供了一种针防护杆,其从内部设置在柔性管的第一通道内用于防止泄漏。所述针防护杆可包括:承窝形尾部,其用于接纳连接到接入口的流体储存器的球根状导管;球形头部;轴部,其设置在所述第一承窝形尾部与所述球形头部之间,所述轴部限定用于运送流体的第二通道;以及倒钩部,其从所述轴部突出。
附图说明
在结合附图阅读下面的详细说明时,本发明的特征、要克服的障碍和优点将变得更加清楚,其中:
图1示出根据本发明实施例的包括接入口的胃束带系统。
图2A示出根据本发明实施例的没有倒钩的针刺防护杆。
图2B示出利用图2A所示没有倒钩的针刺防护杆时的潜在泄漏路径。
图3A示出根据本发明实施例将倒钩包含到针刺防护杆如何能防止潜在的泄漏路径。
图3B示出根据本发明实施例的具有倒钩的针刺防护杆。
图3C示出根据本发明实施例的图3A的一部分的特写剖视图。
图3D示出根据本发明实施例的图3A的一部分的更近的视图。
图3E示出根据本发明实施例的用于附接到接入口外壳的连接器上的防护杆。
图3F示出根据本发明实施例的图3E所示防护杆的剖视图。
图3G示出根据本发明实施例的用于附接到另一防护杆的防护杆。
图3H示出根据本发明实施例的图3G所示防护杆的剖视图。
图4A示出根据本发明实施例的具有倒钩的针刺防护杆。
图4B示出根据本发明实施例的图4A的一部分的特写剖视图。
具体实施方式
现在将参考附图描述实现本发明的各特征的实施例的设备、系统和/或方法。附图和相关描述被提供来说明本发明的一些实施例,而不是限制本发明的范围。所有附图中,附图标记被重复使用来表示所引用的元件之间的一致性。
图1示出用于治疗肥胖的可植入的胃束带系统105。在所示实施例中,管125和接入口130用在包括胃束带110的可植入的胃束带系统105中,胃束带110构造成形成围绕患者100的胃120的一部分的环以形成小孔。胃束带110优选地缠绕在胃120的贲门或食管交界处周围,以限制食物从胃120的上部到胃120的下部的流动。食物的限流增强了由患者100感测到的过饱腹信号,这如愿地减少了患者100的食物消耗,从而帮助患者100减轻体重。
经过一段时间,医生可能需要调整胃束带110束紧胃的程度。这样,胃束带110可包括可膨胀部分115,其包括缠绕在患者100的胃120周围的可膨胀箍带。可膨胀部分115可填充有流体。可膨胀部分115中流体的量限定胃束带110束紧胃120的程度(例如,可膨胀部分115中更大量的流体将增加胃120的束紧程度)。医生可以经由接入口130调整可膨胀部分115中流体的量。
接入口130优选地被皮下固定在患者100的身体内,并且优选地被固定到包括患者100的内部肌肉壁的身体组织。管125经由接入口130将流体输送至和输送出可膨胀部分115。管125的一端接合到接入口130,管125的另一端接合到胃束带110的可膨胀部分115。
医生将注射器针150插入患者的身体来使用接入口130,并改变胃束带110的可膨胀部分115中流体的量。通常,医生必须尝试确定接入口130的隔膜135的位置以使注射器针150穿过隔膜135。隔膜135必须被注射器针150穿透以允许流体进入,或从接入口130除去。医生通常触诊接入口130周围的区域来确定隔膜135的位置。
然而,医生可能难以正确地确定隔膜135的位置,因为接入口130可能被皮肤和/或脂肪的许多层覆盖。因此,有可能医生无法正确地确定隔膜135的位置,并且可能将注射器针150插在错误的位置。医生可能错误地接触管125的靠近接入口130的部分。注射器针150可能刺破管125,尤其是管125的连接到接入口130的端部,并且可能导致流体从胃束带系统105漏出。可能需要手术过程来修复被刺破的管125,或者更换整个胃束带系统105。
通过包含防护管125免于泄漏流体的设备,可避免或预防这种不良的结果。
图2A示出了具有针刺防护杆230,235,240的接入口系统200,针刺防护杆230,235,240布置或定位在内部流体通道225中,以防止当针刺穿或穿透接入口205和胃束带(未示出)之间的柔性管220时流体漏出。如图所示,针刺防护杆230连接到接入口连接器215,接入口连接器215继而作为接入口205的内部流体储存器240和胃束带的其余部分之间的流体导管。针刺防护杆230被附接到另一针刺防护杆235上,针刺防护杆235又附接到针刺防护杆240上。由于这些针刺防护杆230,235,240被定位在内部流体通道225内,所以在某种意义它们阻塞或限制内部流体通道225。然而,针防护杆230,235和240包括被挖空以用作流体导管同时保护中空内部不会由于针的刺破引起泄漏的杆部。本质上,针防护杆230,235和240能够通过产生替代的流体通道以允许流体从流体储存器240流到内部流体通道225以及从内部流体通道225流到流体储存器240而将内部流体储存器240和内部流体通道225流体地接合。
有利的是,通过利用多个短的针刺防护杆(而不是一个长的针刺防护杆),管220的柔性可得以保持。如图所示,针刺防护杆240通往内部流体通道225的未受保护部分。在实践中,因为试图穿透接入口205的隔膜210的医生们不太可能差错超过几英寸,所以额外的针刺防护杆可能不必要。然而,如果需要则可以采用额外的针刺防护杆。
通常,针刺防护杆可以防止针直接穿透它的外壳而形成大泄漏。然而,这些针刺防护杆主要包含物理压力(例如,压靠和/或稍微拉伸内部流体通道225的外径)来提供密封的事实使得各针刺防护杆容易允许从接头(即,两个相邻的针刺防护杆之间的连接点)泄漏。
图2B示出了潜在的泄漏路径255的实例,其可能在打偏的针250穿透靠近杆的区域时产生。这种潜在的泄漏路径255可允许胃束带系统内的流体不期望地泄漏出而潜在地减小胃束带系统的功效。
因此,可以采用一个或多个倒钩来防止流体从接头到由打偏的针造成的刺破孔通过。图3A-3H示出了具有不容易允许从接头泄漏的针刺防护杆的实施例。
图3A示出与图2B类似的情况,其中打偏的针250穿透靠近针刺防护杆335的区域。然而,由于倒钩或突出部338的存在,来自由头部339和对应尾部341形成的接头的流体被挡住不沿针刺防护杆335的外部流动和流出由针250产生的孔。因此,倒钩或突出部338的增加提供了防漏的有利优势。
图3B示出采用图3A所示特征的胃束带的一部分的透视图。这里,针刺防护杆330,335,340布置或定位在内部流体通道325中,以防止当针刺穿或穿透连接接入口305和胃束带(未示出)的柔性管320时流体从胃束带系统漏出。针防护杆330,335,340中的每个分别包括倒钩或突出部333,338和343,它们用来挡住内部流体通道325的一部分,以便以与图3A所示和对应描述相类似的方式防止流体从接头到由打偏的针造成的刺破孔通过,从而提高防漏能力。
此外,针防护杆330,335,340比柔性管320的内部流体通道325的内径稍大,因此压靠在柔性管320上而形成流体密封。
图3C示出图3A的特写剖视图。如从左至右所示,限定流体导管350的接入口连接器315可以包括可连接到第一针防护杆330的球根状(bulbous)导管头部345。更具体地,头部345配合到第一针防护杆330的尾部331中。第一针防护杆330除了尾部331之外还可以包括轴部332、倒钩部333和头部334。头部334可以配合到第二针防护杆335的尾部336中(以球可以配合到承窝中以形成柔性接头的方式)。第二针防护杆335还可以包括轴部337、倒钩部338和头部339。类似地,第二针防护杆335的头部339配合到第三针防护杆340的尾部341中来形成另一个柔性接头。第三针防护杆340还可以包括轴部342、倒钩部343和头部344。杆332,337和342可以分别被模制为包括用于输送流体的腔,例如,用于在流体导管350和内部流体通道325之间建立流体路径的内部流体通道351,352和353。
在靠近头部334,338和344的位置的接头区域处增加的倒钩333,338和343被设置成有利地防止流体从接头到刺破孔的通过。也就是说,球根状倒钩的突出形态充当阻止接头被打偏的针穿透的屏障。另外,由于倒钩部333,338和343显著地鼓起到管的内径中,所以在倒钩部333,338和343的位置处提供了较好的流体密封。在这种方式下,泄漏可被限制到两个相邻倒钩之间仅仅现有的流体,因为另外的流体不能流过各倒钩和流到刺破孔之外。
图3D进一步示出了针刺防护杆(例如,针刺防护杆340)的各相对直径,其用来解释流体如何在流体通道325和353之间被传送而同时被倒钩部343挡住以及如何通过针刺防护杆340的直径362形成流体密封。如图3C所示,管360的内径可大于或等于流体通道353的内径361。然而,内径361小于针刺防护杆340的直径362。在这种方式下,如箭头371所示的流体的任何泄漏是最小的。倒钩部343进一步密封和/或挡住箭头371所示的流体,因为它甚至更深地突出到柔性管320中。因此,流体可以在流体通道325和353之间流过而不从通道漏出。
图3E示出第一针防护杆330的特写视图,图3F示出第一针防护杆330的剖视图。第一针防护杆的流体通道351在图3D所示的视图中被隐藏(因为它从头部的开口370延伸到尾部331),但是在图3F中被显示。如上所述的第一针防护杆330可以包括用于接纳连接器315的头部345的尾部331。在一端,尾部331可以具有开口,该开口具有尺寸设置成适合头部345的第一直径,并且尾部331可以渐缩成与轴部332的一部分对应的相对较小的直径(其可能仍然比流体通道例如流体通道325的内径稍大)。轴部332可通往鼓起超出轴部332外径的倒钩部333。头部334可以位于倒钩部333的另一侧,该头部334包括用于允许流体进入并沿流体通道351流动的孔370。
在一个实施例中,当在头部334和尾部331之间进行测量时第一针防护杆330可以为约0.5厘米至约5厘米之间的任何长度。优选地,第一针防护杆330可以为约2至4厘米之间的长度。
第一针防护杆330可以由任何合适的生物相容性材料构成,包括但不限于钛、不锈钢、聚砜、PPSU、来自Solvay(索尔维)公司的PEEK、来自Ticona(泰科纳)公司的UHMWPE,以及它们的任意组合。
图3G和3H示出除了第一针防护杆330之外的防护杆(例如,防护杆335或340)的实例。为了便于理解,将参考可附接到第一针防护杆330上的第二针防护杆335,但是各特性也适用于第三针防护杆340或可以按需要添加的任何其它防护杆。与第一针防护杆330相比,第二针防护杆335具有构造为不同形状和尺寸的尾部336。该不同的原因是因为两个尾部331和336分别可以接纳被不同地成形的头部。虽然尾部331被示出为更大以适应更大的连接器头部345,但是其它变型也是可能的(例如,在连接器头部实际上比防护杆的头部小的情况下)。实际上,除了尾部336的形状和尺寸之外,第二防护杆335在尺寸、功能和材料方面与第一防护杆330实质上相同。换句话说,第二针防护杆375的尾部336可以具有开口,该开口具有尺寸设置成适合第一针防护杆330的头部334的第一直径,并且尾部336可以渐缩成与轴部337的部分对应的相对较小的直径(其可能仍然比流体通道例如流体通道325的内径稍大)。轴部337可通往鼓起超出轴部337直径的倒钩部338。头部339可以位于倒钩部338的另一侧,该头部339包括用于允许流体进入流体通道352并沿流体通道352且穿过第一针防护杆330的流体通道351流动的孔375。在一个实施例中,轴部337、倒钩部338和头部339的尺寸可以与第一针防护杆330的轴部332、倒钩部333和头部334的尺寸相同。实际上,当各针防护杆都接合到至少一个其它针防护杆上以产生被保护的流体路径时,针防护杆的相同尺寸可以允许更廉价的制造和改进的兼容性。
此外,一个针防护杆的头部的形状构造成由相邻针防护杆的尾部的形状接纳,以便提供“球与窝”的功能,从而允许相应的相邻针防护杆枢转来保持针防护杆被定位在其中的管的柔性。
在新设计的接入口和/或其它适当的接入口中,直通接入口外壳的连接器(例如,接入口连接器315)可以被设计成具有形状和尺寸设置成与第一针防护杆、第二针防护杆、第三针防护杆等的头部类似的头部。通过使连接器的头部形状和尺寸与针防护杆相同,所有针防护杆可以相同。换句话说,这将省去对与连接器(例如,连接器315)接口的第一针防护杆(例如,第一针防护杆335)包括不同形状和/或尺寸的尾部的需要。
例如,图4A和4B示出接入口连接器415,其具有形状和尺寸设置成与针防护杆430,435和440的头部形状和尺寸类似的头部。在该实施例中,仅仅制造一种可互换式针防护杆是可行的。
图4A示出了针刺防护杆430,435,440的一个实施例,该针刺防护杆430,435,440布置或定位在内部流体通道425中,以防止当针刺穿或穿透接入口405和胃束带(未示出)之间的柔性管420时流体漏出。针防护杆430,435,440中的每个可以是相同的。此外,针防护杆430,435,440中的每个分别包括倒钩或突出部433,438和443,它们用来挡住内部流体通道425的一部分,以便防止流体从接头到由打偏针造成的刺破孔的通过,从而提高防漏能力。
此外,针防护杆430,435,440比柔性管420的内部流体通道425的内径稍大,因此压靠在柔性管420上而形成流体密封。
图4B示出图4A的特写剖视图。如从左至右所示,限定流体导管450的接入口连接器415可以包括可连接到第一针防护杆430的头部445。更具体地,头部445配合到第一针防护杆430的尾部431中。第一针防护杆430除了尾部431之外还可以包括轴部432、倒钩部433和头部434。头部434可以配合到第二针防护杆435的尾部436中(以球可以配合到承窝中以形成柔性接头的方式)。第二针防护杆435还可以包括轴部437、倒钩部438和头部439。类似地,第二针防护杆435的头部439配合到第三针防护杆440的尾部441中来形成另一个柔性接头。第三针防护杆440还可以包括轴部442、倒钩部443和头部444。轴部432,437和442可以分别被模制为包括用于输送流体的腔,例如,用于在流体导管450和内部流体通道425之间建立流体路径的内部流体通道451,452和453。
在靠近头部434,439和444的位置的接头区域处增加的倒钩部433,438和443被设置成有利地防止流体从接头到刺破孔的通过。例如,倒钩部433,438和443的功能是为接头提供免于打偏的针的保护。也就是说,倒钩的突出形态充当阻止接头被打偏的针穿透的屏障。另外,由于倒钩部433,438和443显著地鼓起到管的内径中,所以在倒钩部433,438和443的位置处提供了较好的流体密封。在这种方式下,泄漏可被限制到两个相邻倒钩之间仅仅现有的流体,因为另外的流体不能流过各倒钩和流到刺破孔之外。
某些实施例已被公开来阐明包括上述结构构造的概念。然而,本领域技术人员将认识到,可以利用本文的概念来执行无数实施方式。例如,管可以是导管,并且可以用在需要转移液体或气体的其它应用中。
除非另有表示,说明书和权利要求书中使用的表示成分数量、流体体积等的所有数字应当理解为在所有情况下均由术语“约”来修正。因此,除非有相反的表示,说明书和所附权利要求书中提出的数值参数是近似值,其可以根据试图通过本发明获得的所需性能来改变。最起码地,并且不作为将等同原则的应用限制到权利要求的范围的尝试,每个数值参数应当至少按照所报告的有效数字的位数并且通过应用常规的圆整技术进行解释。尽管阐明本发明的宽泛范围的数值范围和参数是近似值,但是在具体实施例中阐明的各数值被尽可能精确地报告。然而,任何数值固有地包含一定的误差,该误差必然由在它们各自的试验测量中发现的标准偏差产生。
在描述本发明的上下文中(特别是在所附权利要求书的上下文中)没有数量词修饰解释为覆盖单数和复数,除非本文另有说明或上下文明显矛盾。本文中的值的范围的叙述仅仅意在用作单独提及落在该范围内的每一个独立值的简化方法。除非本文另有说明,每个独立值被包含到说明书中,如同它们在本文中被单独列举。本文描述的所有方法可以按任何合适的顺序执行,除非本文另有说明或者上下文明显矛盾。本文中提供的任何和所有实例或示例性语言(例如,“诸如”)的使用仅仅意在更好地说明本发明,并不构成对以其它方式要求保护的本发明范围的限制。说明书中的语言不应该被解释为表示任何对于实施本发明必要的未要求保护的要素。
本文公开的对本发明的替代性要素或实施例的分组不应被解释为限制。每组部件可以被单独提及和要求保护,或者与该组的其它部件或本文中发现的其它要素任意组合。可以预料,出于方便和/或专利性的原因,一组的一个或多个部件可以被包括在一组中或从一组中删除。当任何这类包括或删除发生时,本说明书被认为包含该被修改的组从而满足对所附权利要求书中使用的所有马库什组的书面描述。
本文描述了本发明的某些实施例,包括本发明人已知的用于实施本发明的最佳模式。当然,在阅读了前面的说明之后,基于所描述的这些实施例的变型对于本领域的普通技术人员将变得明显。本发明人期望本领域技术人员适当采用这些变型,并且本发明人希望本发明被以不同于本文具体描述的方式实施。因此,本发明包括如适用法律所允许的记载在所附权利要求书中的主题的所有修改和等同方式。此外,上述要素的以其所有可能变化形式的任何组合被本发明所包括,除非本文另有指明或者上下文明显矛盾。
此外,本说明书参考了一些专利和印刷出版物。上述参考文献和印刷出版物均通过全文引用被单独包含在本文中。
本文公开的具体实施例可使用语言“由...组成”或/和“基本上由...组成”在权利要求中进一步限制。当在权利要求中使时,无论是被提交的还是每次修改时增加的,术语“由...组成”不包括权利要求中未指定的任何元件、步骤或成分。术语“基本上由...组成”将权利要求的范围限制到所指定的材料或步骤以及不显著影响(各)基本和新颖特性的那些材料或步骤。如此要求保护的本发明的实施例从本质上或明确地进行了描述并且能够在本文中予以实现。
最后,应当理解,本文公开的本发明的实施例说明了本发明的原理。可以采用的其它修改都在本发明的范围之内。因此,以举例而不是限制的方式,本发明的可选构造可以根据本文的教导被利用。因此,本发明不严格地限于如被显示和描述的那些内容。
Claims (21)
1.一种用于治疗肥胖的胃束带系统,所述胃束带系统包括:
接入口,其具有内部流体储存器和具有头部的导管;
胃束带,其具有可膨胀部分;
管,其具有限定第一通道的内表面,所述管将所述内部流体储存器连接到所述可膨胀部分;以及
第一防护杆,其构造成防止针穿过所述第一防护杆,所述第一防护杆包括:
第一承窝形尾部,其用于接纳所述导管的头部,
第一球形头部,
第一轴部,其设置在所述第一承窝形尾部与所述第一球形头部之间,所述第一轴部限定用于运送流体的第二通道,以及
第一倒钩部,其从所述第一轴部突出,
其特征在于,所述第一防护杆被设置在所述管的第一通道内,并且所述第一倒钩部被构造成延伸到所述管的内表面中。
2.根据权利要求1所述的胃束带系统,其中,所述第一倒钩部的外径大于所述管的内表面的直径。
3.根据权利要求1所述的胃束带系统,其中,当所述第一承窝形尾部接纳所述导管的头部时形成柔性接头。
4.根据权利要求2所述的胃束带系统,还包括:
设置在柔性管的第一内部流体通道内的第二防护杆,所述第二防护杆具有:
位于所述第二防护杆的第一端部处的第二承窝形尾部,其用于接纳所述第一防护杆的球形头部,
位于所述第二防护杆的第二端部处的第二球形头部,
第二轴部,其使第二内部流体通道在第一防护杆的第一承窝形尾部与第二防护杆的第二球形头部之间连续,所述第二内部流体通道接合到所述第一内部流体通道的部分,以及
第二倒钩部,其设置在所述第二球形头部与所述第二承窝形尾部之间,并且构造成挡住所述第一内部流体通道在所述第二倒钩部与所述第一倒钩部之间的部分同时允许流体流过所述第二内部流体通道。
5.根据权利要求4所述的胃束带系统,其中,所述第二倒钩部的直径大于所述第一内部流体通道在所述第二倒钩部的位置处的直径。
6.根据权利要求4所述的胃束带系统,其中,当所述第二承窝形尾部接纳所述第一防护杆的球形头部时形成柔性接头。
7.根据权利要求5所述的胃束带系统,还包括:
设置在所述柔性管的第一内部流体通道内的第三防护杆,所述第三防护杆具有:
位于所述第三防护杆的第一端部处的第三承窝形尾部,其用于接纳所述第二防护杆的球形头部,
位于所述第三防护杆的第二端部处的第三球形头部,
第三轴部,其使第二内部流体通道在第一防护杆的第一承窝形尾部与第三防护杆的第三球形头部之间连续,所述第二内部流体通道接合到所述第一内部流体通道的一部分上,以及
第三倒钩部,其设置在所述第三球形头部与所述第三承窝形尾部之间,并且构造成挡住所述第一内部流体通道在所述第三倒钩部与所述第二倒钩部之间的部分同时允许流体流过所述第二内部流体通道。
8.根据权利要求7所述的胃束带系统,其中,所述第三倒钩部的直径大于所述第一内部流体通道在所述第三倒钩部的位置处的直径。
9.根据权利要求7所述的胃束带系统,其中,当所述第三承窝形尾部接纳所述第二防护杆的球形头部时形成柔性接头。
10.一种用于在接入口和胃束带的可膨胀部分之间运送流体的柔性管,所述柔性管包括:
本体,其构造成具有可附接到所述接入口的导管的球根状端部的第一端部和可附接到所述可膨胀部分的第二端部,所述本体具有限定用于运送流体的第一通道的内表面;以及
第一防护杆,其设置在所述本体的第一通道内,并且构造成防止针穿过所述第一防护杆,所述第一防护杆包括:
第一承窝形尾部,其用于接纳所述导管的球根状第二端部,
第一球形头部,
第一轴部,其设置在所述第一承窝形尾部与所述第一球形头部之间,所述第一轴部限定用于运送流体的第二通道,以及
第一倒钩部,其从所述第一轴部突出,并且构造成延伸到所述本体的内表面中。
11.根据权利要求10所述的柔性管,其中,所述第一倒钩部的直径大于所述第一通道在所述第一倒钩部的位置处的直径。
12.根据权利要求10所述的柔性管,其中,当所述第一承窝形尾部接纳所述导管的球根状端部时形成柔性接头。
13.根据权利要求10所述的柔性管,还包括:
第二防护杆,其设置在所述本体的第一通道内,所述第二防护杆具有:
第二承窝形尾部,其用于接纳所述第一防护杆的第一球形头部,
第二球形头部,
第二轴部,其设置在所述第二承窝形尾部与所述第二球形头部之间,所述第二轴部还限定用于运送流体的第二通道,以及
第二倒钩部,其从所述第二轴部突出,并且构造成延伸到所述本体的内表面中。
14.根据权利要求13所述的柔性管,其中,所述第二倒钩部的直径大于所述第一通道在所述第二倒钩部的位置处的直径。
15.根据权利要求13所述的柔性管,其中,当所述第二承窝形尾部接纳所述第一防护杆的球形头部时形成柔性接头。
16.一种针防护杆,其从内部设置在柔性管的第一通道内用于防止泄漏,所述针防护杆包括:
承窝形尾部,其用于接纳连接到接入口的流体储存器的球根状导管,
球形头部,
轴部,其设置在所述承窝形尾部与所述球形头部之间,以及
倒钩部,其从所述轴部突出,
其特征在于,所述轴部限定用于运送流体的第二通道。
17.根据权利要求16所述的针防护杆,其中,所述倒钩部的直径大于所述第一通道在所述倒钩部的位置处的直径。
18.根据权利要求16所述的针防护杆,其中,当所述承窝形尾部接纳所述球根状导管时形成柔性接头。
19.根据权利要求16所述的针防护杆,其中,所述承窝形尾部与所述球形头部之间的距离为2.0厘米-4.0厘米。
20.根据权利要求16所述的针防护杆,其中,所述承窝形尾部、所述球形头部、所述轴部和所述倒钩部都由生物相容性材料构成。
21.一种与胃束带一起使用来治疗肥胖的接入口,所述接入口包括:
(A)包围储存器的外壳;
(B)导管,其具有连接到所述储存器的第一端部和球根状第二端部;
(C)管,其具有限定第一通道的内表面,并且具有连接到所述导管的所述球根状第二端部的第一端部和连接到所述胃束带的可膨胀部分的第二端部;以及
(D)第一防护杆,其构造成防止针由于法向施加的力而穿过所述第一防护杆,所述第一防护杆包括:
(i)第一承窝形尾部,其用于接纳所述导管的球根状第二端部,
(ii)第一球形头部,
(ⅲ)第一轴部,其设置在所述第一承窝形尾部与所述第一球形头部之间,所述第一轴部限定用于运送流体的第二通道,以及
(ⅳ)第一倒钩部,其从所述第一轴部突出,
其特征在于,所述第一防护杆设置在所述管的第一通道内,并且所述第一倒钩部延伸到所述管的内表面中。
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EP2779962A1 (en) | 2014-09-24 |
AU2012339910A1 (en) | 2014-05-29 |
US20130123573A1 (en) | 2013-05-16 |
WO2013074342A1 (en) | 2013-05-23 |
CN103997992A (zh) | 2014-08-20 |
CA2855202A1 (en) | 2013-05-23 |
KR20140091062A (ko) | 2014-07-18 |
US8858421B2 (en) | 2014-10-14 |
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