CN1692886A - 改良的套管针密封件 - Google Patents

改良的套管针密封件 Download PDF

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CN1692886A
CN1692886A CNA2005100629673A CN200510062967A CN1692886A CN 1692886 A CN1692886 A CN 1692886A CN A2005100629673 A CNA2005100629673 A CN A2005100629673A CN 200510062967 A CN200510062967 A CN 200510062967A CN 1692886 A CN1692886 A CN 1692886A
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ring
trocar
sealing member
black box
member part
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CN100500108C (zh
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M·S·蔡纳
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Ethicon Endo Surgery Inc
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3474—Insufflating needles, e.g. Veress needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
    • A61B2017/3464—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals with means acting on inner surface of valve or seal for expanding or protecting, e.g. inner pivoting fingers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0626—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof used with other surgical instruments, e.g. endoscope, trocar
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0686—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof comprising more than one seal

Abstract

一种对病人执行操作的套管针。此套管针具有带有远端和近端的中空插管。套管针也具有带有接附到插管的近端的远端和具有与其接附的壁的近端的壳体。壁具有贯穿其间的孔。套管针进一步包括位于壳体内的密封组件。密封组件包括第一充分刚性的环、第二充分刚性的环，以及压缩在两个环之间的若干层状弹性体构件。第一环具有若干从其远端表面伸出的远端伸长突起，第二环具有若干从其近端表面伸出的近端伸长突起。

Description

改良的套管针密封件
本申请是2003年10月15日提交的标题为：Improved TrocarSeal，序列号为10/687,502的美国专利申请的部分后续申请。此申请涉及以下共同未决的和共同转让的专利申请：2003年9月30日提交的标题为：Multi-Angled Duckbill Seal Assembly，申请序列号为60/506,729的申请。2003年9月30日提交的标题为：Reinforced SealAssembly，申请序列号为60/506,730的申请；2003年9月30日提交的标题为：Improved Trocar Housing/Stopcock Assembly，申请序列号为60/506,783的申请；2003年9月30日提交的标题为：RotationalLatching System for Trocar，申请序列号为60/506,786的申请；2003年9月30日提交的标题为：Woven Protector for Trocar SealAssembly，申请序列号为60/506,782的申请；2003年9月30日提交的标题为：Trocar Assembly Tip Protector，申请序列号为60/506,725的申请；2003年9月30日提交的标题为：Low-Profile，RecessedStopcock Valve for Trocar Assembly，申请序列号为60/506,785的申请；2003年9月30日提交的标题为：Instrument Lock Assembly forTrocar，申请序列号为60/506,737的申请；所有这些专利申请通过参考在此引入。
技术领域
本发明应用在传统内窥镜和敞开式手术仪器以及机器人辅助手术中。本发明进一步涉及套管针，以协助执行微创手术，更具体地说，涉及这种套管针的改良密封件。
背景技术
在手术中使用内窥镜操作已被广泛接受。在此使用的术语内窥镜定义为包括所有类型的微创手术操作，这些操作包括腹腔镜以及关节内窥镜操作。因此，发展了许多内窥镜仪器，这些仪器允许外科医生利用特定体腔或解剖区域周围皮肤和组织内极微小的切口就能执行复杂的外科操作。为了将内窥镜仪器引入体腔，常常需要使用套管针刺穿体腔并且将导管插入体腔。在现有技术中广泛已知套管针，其一般包括闭塞器和套管针插管。在于2000年1月25日颁发给Frederick等人的美国专利6,017,356中，能够查到一个套管针实例，其通过参考在此引入。
在内窥镜操作期间，通常密封设备或密封装置联合插管一起使用，从而防止液体或气体泄漏。在内窥镜手术操作期间，为了成功完成操作，必须保持内气压。当仪器进出置于体腔内的套管针时，为了保持内气压，仪器和套管针组件均需要密封设备。大多数套管针具有两个密封设备。一个是当没有仪器通过时密封套管针，一个是当仪器通过时密封套管针。此外，这是理想的：尽管通过套管针插管多次插入和收回手术仪器，密封设备能维持腹腔内的气压。
大多数商品化的套管针具有外密封件和内密封件。外密封件一般为垫圈，该垫圈位于套管针插管的最近端。此垫圈围绕通过垫圈的任何医疗设备的细长杆来紧固自身。因此，当手术仪器与插管一起使用时，外密封件防止了流体通过套管针插管流出体腔。内密封件一般被称为挡板门。其由刚性的一般为塑料的门制成，其靠着内垫圈弹性偏置。当不使用套管针插管时，也就是没有手术仪器或闭塞器进入时，内密封件防止了流体通过套管针插管流出体腔。内密封件位于套管针插管手柄处，远离外密封件。
发明内容
一种对病人进行操作的套管针。该套管针包含具有远端和近端的中空插管。套管针还包含具有接附到插管的近端的远端和具有与其接附的壁的近端的壳体。壁具有贯穿其中的孔。套管针进一步包括位于壳体内的密封组件。密封组件包括第一充分刚性的环、第二充分刚性的环，以及压缩在两个环之间的若干层状弹性体构件。第一环具有从其远端表面延伸的若干远端延伸的突起，第二环具有从其近端表面延伸的若干近端延伸的突起。
附图说明
图1是根据本发明的套管针的透视图。
图2是本发明的密封组件2的分解图。
图2A是与图2类似的视图，但显示了装配在优选实施例中的保护器部分40和密封件部分4a-4d。
图3是用于本发明的密封件5的密封件部分4(a)-4(d)的平面图。
图4是用于本发明的保持器环组件20以及分离的密封件部分4a-4d的透视图，以清晰显示。
图5是显示本发明的密封件5的透视图。
图6是接附到浮选系统80上的密封件5的透视图，具有通过其中的仪器90。
图7是图1中显示的套管针100沿线7-7剖开的截面图，为了清晰显示，移走了闭塞器110。
图8是根据本发明制造的垫圈环的另一实施例的透视图。
图9是根据本发明制造的垫圈保持器环的另一实施例的透视图。
具体实施方式
现在参考附图，在所有视图中相同的数字指示相同的元件，图1显示了根据本发明的套管针100。套管针100可以是类似颁发给Frederick等人的美国专利6,017,356中描述的套管针，其通过参考在此引入。套管针100包含插管部分110和闭塞器部分120。闭塞器部分对本发明所属技术领域的普通技术人员来说是公知的，闭塞器可以是有叶片的也可以是没有叶片的，例如由俄亥俄州辛辛那提市的Ethicon Endo-Surgery销售的ENDOPATH II套管针上使用的那些闭塞器。闭塞器部分120具有穿孔尖122，其用于刺穿病人组织，直到到达腹腔。在穿入腹腔后，闭塞器部分120可以从插管部分110卸下。卸下闭塞器部分后，任何数量的例如象组织结扎仪器那样的手术仪器，可以通过套管针插管插入，从而执行手术操作。
如从图7中所见的，本发明的优选实施例是一种用来实现对病人进行操作的套管针100。套管针100包括具有远端204和近端206的中空插管202。套管针100还包含具有接附到插管202的近端206的远端212和具有与其接附的壁216的近端214的壳体210，该壁具有贯穿其中的孔218。套管针100包括位于壳体内的密封组件2，其包括若干层状弹性体构件4a-4d，这些构件形成圆锥形密封件5。如下所描述的，若干层状弹性体构件4a-4d最好具有半圆形外形，并且最好具有大约180到270度的圆周。如下所描述的，密封组件最好包括第一和第二刚性环(垫圈保持器环8和垫圈环20)，其中，层状弹性体构件4a-4d设置在环之间，并紧靠着环8和20。如下所描述的，弹性体构件4a-4d最好包括近端凸缘部分70，以及从近端凸缘向远端延伸的向内延伸部分72，其中近端凸缘部分位于环之间并且靠着环。密封组件2最好具有接附到浮选装置80的外周边220。如以下更详细描述的，密封组件2最好包括若干位于弹性体密封件近端的保护器40。最后，套管针100最好包括图7中显示的零闭合阀(zero closurevalve)，如鸭嘴形阀230。
现在参考图2和图2A，显示了根据本发明制造的密封组件2。密封组件2包括冠顶30、保护器40、垫圈环20、密封件部分4a-4d以及垫圈保持器环8。垫圈保持器环8可以由任何本领域的技术人员已知的材料制成，其包括但不限于聚碳酸酯。垫圈保持器环8包括具有顶端11的环底9。从环底9的顶端11延伸出的是若干保持器销10。环底9也包含在其内贯穿延伸的若干孔眼14。可以通过本领域的技术人员已知的任何接附装置将保持器销10接附在环底9的顶端11上，或者保持器销可以和环底9整体模制。通过将垫圈保持器孔眼6放于保持器销10上，保持器销10能够与密封件部分4a-4d一起使用。环底9进一步包括在图2A中所示的挤压肋12，挤压肋12是环底9的开口的内边缘。
图4中显示的垫圈环20有助于将密封件部分4a-4d固定到保持器环8上。垫圈环20可以由任何本领域技术人员已知的材料制成，包括但不限于聚碳酸酯。垫圈环20具有顶端20、底部24以及贯穿的开口23。垫圈环20进一步包括若干位于其底部24的用于容纳保持器销10的垫圈销孔眼(未示出)，以及包括若干位于其顶端22的用于容纳冠顶销32的冠顶孔眼28。垫圈环20还包括从底部24伸出的若干垫圈销29。
如图2所示，密封组件2进一步包括冠顶环30和若干保护器40，其位于密封件部件4a-4d之上。冠顶环30是具有底部31的环形构件，冠顶环可以由许多本领域的技术人员已知的材料制成，包括但不限于聚碳酸酯。若干冠顶销32从冠顶环30的底部31伸出。可以通过本领域的技术人员已知的任何接附装置将冠顶销32接附在冠顶环30的底部31上，或与之整体模制。可使用冠顶销32将保护器40组装到垫圈组件3的垫圈环20上，以形成如图2中所示的本发明的密封组件2。最好由薄的柔性聚合体制成的保护器40，能够略微呈梯形状并且相互重叠或彼此交织，并且通过本领域的技术人员已知的任何装置将其接附在一起，从而形成如在图2中所示的圆锥形。在上面涉及的标题为“WOVEN PROTECTOR FOR TROCAR SEALASSEMBLY”、于2003年9月30日提交的律师案卷号#END5179的参考中，对这种保护器进行了进一步的描述。
通过将保护器嵌入冠顶环30的远端表面31和垫圈环20的近端表面22之间，将保护器40接附在密封组件2上。冠顶环30的远端表面31上的冠顶销32穿过保护器40的保护器凸缘44内的保护器孔眼42。这些冠顶销32也固定在垫圈环20的近端表面22上的冠顶孔眼28内，从而保持在两部分表面之间的合适位置处固定的保护器40。
当组装为密封组件2时，保护器如上所述那样一起叠成层，而密封件部分如下所述那样一起叠成层。参考图3可以更好地看出，垫圈销10穿过密封件部分4的孔眼6，嵌入垫圈销孔眼26内，而垫圈销29嵌入保持器环8的孔眼14内，从而将垫圈环20与垫圈保持器环8固定在一起，而密封件部分位于其间。冠顶销32穿过保护器40的孔眼42，嵌入冠顶孔眼28内，从而有助于将垫圈环20固定到冠顶30上，而保护器40位于其间。当所有组装完后，就形成了密封组件2(在图7中显示)。
在本技术领域中公知密封件保护器40，在于1994年5月3日颁发给Hart等人的美国专利5,308,336中，对保护器进行了描述，其通过参考在此引入。如在图2-6中所示，保持器环组件3包括四个密封件部分4a-4d、垫圈保持器环8以及垫圈环20。可以使用任何数量的密封件部分，在此的本发明不限于4个密封件部分。密封件部分4a-4d中的每一个可以模制成平的或非平面状，密封件部分可以由弹性体制成，例如硅树脂，但不仅限于弹性体。
在另一实施例中，在垫圈保持器环8和垫圈环20之间，销和孔眼的配合被分离了。四个销和十二个孔眼可以和垫圈环20成一整体，而十二个销和四个孔眼可以和垫圈保持器环8成一整体。随后密封件“交织”在垫圈环20上，每一个密封件部分只需要放置在3个销上。这与先前描述的实施例中需要的10个销形成了对比。这些销将密封件保持在适当的结构中，提供垫圈孔眼6与其余的销孔眼对(10和26)的对准。当垫圈保持器环8装配到垫圈环20上时，垫圈保持器环的十二个销穿过对准的垫圈孔眼，从而与先前实施例中一样地定住密封件。可使用垫圈构件8和20上的任何数量的销和孔或销和孔的组合。
作为另一种选择，可仅利用四个销穿过垫圈孔眼(6)来实现确实固定。四个销可位于垫圈环20上，而四个相应的孔眼位于垫圈保持器环上。密封件部分(4a-4d)具有只相应于这些位置的孔眼。为了补充与这些销孔眼组合相关的固定，在垫圈环20和垫圈保持器环8上可设置额外的“夹紧销”。这些夹紧销为圆锥形突起，其从垫圈环20的远端表面24和垫圈保持器环8的近端表面11上伸出。每个部分上的这些圆锥形突起彼此径向对齐，并且当垫圈环20和垫圈保持器环8组装在一起时，压缩密封件部分的周边凸缘。由于圆锥形突起上尖端的锋利，其“插入”到密封件部分的柔性材质上，利于密封件部分周边的固定。
密封件部分4可以由许多本领域的技术人员已知的材料制成，包括聚异戊二烯和硅树脂。密封件部分4包括近端平的凸缘部分70，以及向内延伸的远端部分72。如在图2中所见，密封件部分4可具有225度圆周的半圆形，使得当这些密封件部分层叠在一起时，其呈现出如在图5中所示的圆锥形。然而，任何数量的不同的形状同样起作用。密封件部分也能模制成非平面状，并且每一个密封件部分可以是相同或不同的设计和形状。本发明的密封组件2最好包括若干密封件部分4，密封件部分4叠成层，以形成多层圆锥形密封件5。密封件部分4在彼此顶部堆叠，从而形成此层状结构，或如下面所描述的交织在一起。
在一个优选实施例中，通过参考图3、4和5对其做了最好的描述，密封件部分4a-4d彼此交织。现在将进行描述的是：密封件部分4a-4d是如何组装到保持器环8和垫圈环20上，从而形成本发明的圆锥形密封件5。通过先将第一密封件部分4a的垫圈孔眼6放于垫圈保持器环8的垫圈保持器销10上，完成组装，如图中所示。因为第一密封件部分4a是组装到保持器环8上的第一个密封件，所以不需要特定的保持器销10的位置来放置第一密封件4a的垫圈孔眼6。第二密封件部分4b的垫圈孔眼6随后放置于垫圈保持器环8的垫圈保持器销10上，使得第二密封件4b的起始边缘15b与第一密封件4a的末边缘17a重叠。基本上，每一个密封件部分的起始边缘将和相邻密封件部分的末边缘共享至少一个保持器销，使得一个密封件部分的起始边缘将重叠在相邻密封件部分的末边缘的顶部上。因为这是四密封件块设计，所以在距离第一密封件部分4a的起始边缘15a逆时针方向90度的位置上，放置第二密封件部分4b的起始边缘15b。第三部分4c放置到销上以后，从销上移开第一密封件部分4a的起始边缘15a，从而允许第四密封件部分4d的末边缘17d放置在其下，使得所有密封件部分4a-4d均有重叠，如图3-4中所示。以和第三密封件部分4c上其他密封件同样的方法，第四密封件部分4d的起始边缘15d放置于垫圈保持器销10上。然而，第四密封件部分4d的末边缘17d位于第一密封件部分4a的起始边缘15a的移开部分的下面。一旦第四密封件部分4d安装到全部垫圈保持器销10上，就将第一密封件部分4a的移开部分放到第四密封件部分4d的末端部分之上。
以上描述的将密封件部分4a-4d安放到保持器销10上的实施例，允许密封件部分4a-4d形成带有圆锥形的密封件5，如图3和5中所示。图5显示了密封件45，其远端具有孔眼74。然而，密封件部分4可以构造为不具有贯穿其间的孔眼，以便形成零闭合阀。此外，密封件部分本身可以进行模制，使得密封件部分在密封件轮廓上具有可变的厚度。这样做出于多个原因，例如，将泄漏率、阻尼减到最小，这在上面涉及的2003年9月30日提交的序列号为60/506,730[律师案卷号为No.END5168]，标题为：REINFORCED SEAL ASSEMBLY，中也进行了描述。
参考图6，对本发明的密封组件2的优势进行了说明，显示了对于具有较大范围的仪器轴径50的插入式手术仪器90，如手术吻合器或施夹钳，进入以上描述的零件100的类型的套管针的能力增强。在此描述的密封件消除了与唇形密封件相关的传统“环向应力”问题。通过将密封件断成多个部分，大大降低了仪器插入期间系统内的应变。在必须密封5mm仪器以及12mm仪器的密封件的情况下，确信应变减少量多达75％。这产生了更加低的仪器插入峰值作用力、仪器插入阻力、仪器抽出阻力，以及仪器抽出峰值作用力。比起唇形密封件，应变的减少使得此密封件更好地抵抗锋利仪器插入期间的刺穿。当锋利仪器接触此密封件时，应变不会象唇形密封件那样迅速增加。这允许仪器在到达导致刺穿或撕破的临界应变水平之前就已通过。
以上描述的实施例的密封件的交织设计允许一个密封件部分的单个厚度在仪器使用的大多数时间里接触仪器(有时，重叠使得两个密封件部分在局部区域与仪器产生接触)。这不像其他分段密封件那样，在指定位置需要多个密封件层与仪器接触来提供充足的密封。因此，交织设计提供了比其他分段密封件设计更好的性能。在与仪器使用有关的力的所有区域，这是十分明显的。
此外，因为描述的实施例降低了应变，所以在密封件中心制造比唇形密封件通常所需的孔眼更小的孔眼是可能的。在唇形密封件设计中，与仪器使用有关的力大受孔眼尺寸减小的影响。虽然对于本申请的分段密封件设计也有一些冲击，但影响大大减小了。因此，通过减小中心的孔眼尺寸，当小仪器轴向偏移到套管针通道一侧时，分段密封件能够获得改良的维持吹入的性能，使得对仪器使用作用力有非常小的影响。作为另一种选择，密封件可以合起来，使得不存在孔眼，以提供零闭合设计，当没有仪器时以及存在仪器时都可密封。
密封组件最好通过例如波纹管的浮选装置或系统来安装在套管针上。在于1995年1月31日颁发给Hart等人的美国专利5,385,553中，对这种密封浮选系统进行了描述，其通过参考在此引入。通过参考图7，可以看到：密封组件2连接到浮选系统80上。波纹管80允许密封组件径向移动。径向偏移波纹管所需的径向力比仪器施加的接触压力要小得多。这使得浮选系统发生偏移，而密封件部分仍保持着与仪器的密封状态。保护器凸缘44最先放置在环表面22的顶端。浮选装置在其内径处可具有带孔眼的凸缘，其可位于保护器凸缘上，使得波纹管凸缘内的孔眼与保护器42内的孔眼对齐。这导致了浮选装置夹在环31和保护器44之间。浮选系统有助于防止保护器无意间地上下移动。
图8显示了垫圈环120，作为垫圈环20的替代实施例。垫圈环120与垫圈环20十分类似。然而，垫圈环120具有从其底部或远端表面124伸出的若干突出200。突出200最好为圆锥形。类似的，图9显示了垫圈保持器环108，作为垫圈保持器环8的替代实施例。垫圈保持器环108与垫圈保持器环8十分类似。然而，垫圈保持器环108具有从其顶端或近端表面111伸出的若干突出302。突出302最好为圆锥形。这些圆锥形突起或“夹紧销”可位于垫圈环120和垫圈保持器环108两者上，或仅位于两者之一上。当在108和120两者上时，这些圆锥形突起彼此径向校准，并且当垫圈环20和垫圈保持器环8组装在一起时，压缩密封件部分的周边凸缘。由于圆锥形突起上尖端的锋利，其“插入”到密封件部分的柔性材质上，利于密封件部分周边的固定。
此外，垫圈环120和垫圈保持器环108可以用超声波焊接在一起。本领域技术人员已知的这个过程，利用超声波振动将两个部件压在一起。此过程迫使对齐的突起302从近端211和远端124表面穿入密封件部分的柔性材质。一旦突起302穿透密封件部分，就利用超声波振动将其焊接到一起。可以利用垫圈构件108和120上的任何数量的销和孔或者销和孔的组合以及/或突起202。
虽然在此显示和描述了本发明的优选实施例，但对本发明所属技术领域的普通技术人员来说，很显然，这些实施例仅仅是作为实例提供的。在不偏离本发明的情况下，对于本发明所属技术领域的普通技术人员来说，可以作出许多改动、变化以及替换。例如，对于本发明所属技术领域的普通技术人员来说，很显然在此公开的内容在机器人辅助手术中具有等同的应用。此外，可以理解：以上描述的每一个结构具有一种功能，而这种结构可以被称为实现该功能的装置。因此，这意味着本发明仅受后附权利要求书的精神和范围的限制。

Claims (8)

1、一种对病人执行操作的套管针，所述套管针包括：
a.有远端和近端的中空插管；
b.具有接附到所述插管的所述近端的远端和具有与其接附的壁的近端的壳体，所述壁具有贯穿其间的孔；
c.位于所述壳体内的密封组件，其包括第一充分刚性的环、第二充分刚性的环，以及压缩在两个环之间的若干层状弹性体构件，所述第一环具有从其远端表面延伸的若干远端延伸突起，所述第二环具有从其近端表面延伸的若干近端延伸突起。
2、根据权利要求1所述的套管针，其特征在于，所述若干层状弹性体构件成圆锥形。
3、根据权利要求1所述的套管针，其特征在于，所述弹性体构件包括近端凸缘部分，以及从近端凸缘向远端延伸的向内延伸部分，其中所述近端凸缘部分位于所述环之间并且靠着所述环。
4、根据权利要求4所述的套管针，其特征在于，所述密封组件具有接附在浮选装置上的外周边。
5、根据权利要求1所述的套管针，其特征在于，所述密封组件包括若干位于所述弹性体密封件近端的保护器。
6、根据权利要求1所述的套管针，其特征在于，所述层状弹性体构件设置为使得在所述密封组件内具有大致在中心定位的孔。
7、根据权利要求1所述的套管针，其特征在于，所述若干弹性体层交织在一起。
8、根据权利要求1所述的套管针，其特征在于，在组装在一起之前，所述若干弹性体层具有非平面形状。
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DE602005003978T2 (de) 2008-12-18
DE602005003978D1 (de) 2008-02-07
US9486241B2 (en) 2016-11-08
EP1582158B1 (en) 2007-12-26
BRPI0501065B1 (pt) 2016-06-14
US20040230161A1 (en) 2004-11-18
JP2005288174A (ja) 2005-10-20
JP4794885B2 (ja) 2011-10-19
RU2005109224A (ru) 2006-10-10
AU2005200520B9 (en) 2013-02-07
CN100500108C (zh) 2009-06-17
CA2502091A1 (en) 2005-09-30
CA2502091C (en) 2013-05-21
ATE381906T1 (de) 2008-01-15
AU2005200520B2 (en) 2011-03-17
BRPI0501065B8 (pt) 2021-06-22
BRPI0501065A (pt) 2005-11-01
EP1582158A1 (en) 2005-10-05
AU2005200520A1 (en) 2005-10-20
MXPA05003368A (es) 2005-10-05
RU2372040C2 (ru) 2009-11-10

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