CN112237456A - 用于圆形钉合装置的重新装载组件 - Google Patents
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Abstract
本发明涉及用于圆形钉合装置的重新装载组件。一种重新装载组件包含外壳壳体、刀架、锁定部件和钩部件。所述锁定部件被支撑在所述刀架的内壁上，并且具有限定窗口的由弹性材料形成的主体。所述钩部件被支撑在所述外壳壳体的内壳体部分上，并且包含具有钩的主体，在所述重新装载组件被击发以阻碍所述刀架重新前进之后，当所述刀架处于其缩回位置时，所述钩被收纳在所述锁定部件的所述窗口内。
Description
相关申请的交叉引用
本申请要求2019年7月16日提交的美国临时专利申请第62/874,534号的权益和优先权，所述临时专利申请的整个公开内容以引用的方式并入本文中。
技术领域
本公开涉及圆形钉合装置，并且更具体地说，涉及用于圆形钉合装置的重新装载组件，其具有用以在击发钉合装置之后将刀架保持在缩回位置中的结构。
背景技术
常规的圆形钉合装置包含细长主体和支撑在细长主体的远侧部分上的外壳或重新装载组件。重新装载组件包含外壳壳体、支撑在外壳壳体上的具有多个钉的钉仓、推动器组件、限定圆柱形空腔的刀和支撑刀的刀架。推动器组件包含环形推动器和推钉构件，所述推钉构件与环形推动器接合并可移动，以使推钉构件移动从而从钉仓中弹出钉。刀架可移动以使刀通过钉仓前进以取出组织的核心或切割组织
在操作钉合装置将组织钉住并切开后，将刀架和刀缩回，以将刀收回到外壳壳体中。这有两个目的。第一个目的在于将刀移动到一位置以允许从由刀限定的空腔内移出组织圆环。第二个目的在于将刀定位在凹陷在外壳壳体内的位置中以避免在操纵和处置重新装载组件期间对临床医生造成伤害。
在一些情况下，将组织圆环在由刀限定的空腔内压缩到一定程度，使得难以从由刀限定的空腔内移出组织圆环。本领域中持续需要包含经过改进的用于将刀/刀架保持在缩回位置中的结构的重新装载组件。
发明内容
本公开的一个方面涉及一种重新装载组件，其包含外壳壳体、钉仓、推动器、刀架、锁定部件和钩部件。外壳壳体包含内壳体部分和外壳体部分，所述外壳体部分与内壳体部分间隔开以在内壳体部分与外壳体部分之间限定环形空腔。钉仓被支撑在外壳壳体的远侧部分上，且限定收纳钉的多个钉凹座。推动器被支撑在外壳壳体的环形空腔内，并可在缩回位置与前进位置之间移动，以从钉仓中弹出钉。刀架包含主体，所述主体限定纵向轴线且支撑刀。刀架的主体包含限定中心孔的内壁。外壳壳体的内壳体部分定位在刀架的中心孔内，使得刀架可围绕外壳壳体的内壳体部分在前进位置与缩回位置之间移动。锁定部件被支撑在刀架的内壁上，具有由弹性材料形成的主体，并且限定了窗口。钩部件被支撑在外壳壳体的内壳体部分上，并且包含具有钩的主体，在重新装载组件被击发以阻碍刀架重新前进之后，当刀架处于其缩回位置时，钩被收纳在锁定部件的窗口内。
本公开的另一方面涉及一种圆形钉合装置，其包含具有近侧部分和远侧部分的细长主体以及重新装载组件。重新装载组件包含外壳壳体、钉仓、推动器、刀架、锁定部件和钩部件。外壳壳体包含内壳体部分和外壳体部分，所述外壳体部分与内壳体部分间隔开以在内壳体部分与外壳体部分之间限定环形空腔。钉仓被支撑在外壳壳体的远侧部分上，且限定收纳钉的多个钉凹座。推动器被支撑在外壳壳体的环形空腔内，并可在缩回位置与前进位置之间移动，以从钉仓中弹出钉。刀架包含主体，所述主体限定纵向轴线且支撑刀。刀架的主体包含限定中心孔的内壁。外壳壳体的内壳体部分定位在刀架的中心孔内，使得刀架可围绕外壳壳体的内壳体部分在前进位置与缩回位置之间移动。锁定部件被支撑在刀架的内壁上，具有由弹性材料形成的主体，并且限定了窗口。钩部件被支撑在外壳壳体的内壳体部分上，并且包含具有钩的主体，在重新装载组件被击发以阻碍刀架重新前进之后，当刀架处于其缩回位置时，钩被收纳在锁定部件的窗口内。
在实施例中，锁定部件包含弹性主体，所述弹性主体具有定位在窗口近侧的锁定构件，其中在重新装载组件的击发之前，当刀架处于缩回位置时，弹性主体定位在钩部件与刀架之间。
在一些实施例中，钩朝着外壳壳体的内壳体部分向下倾斜。
在某些实施例中，钩部件包含近侧安装部分，所述近侧安装部分被固定到内壳体部分，使得钩部件以悬臂方式支撑到外壳壳体的内壳体部分。
在实施例中，在重新装载组件被击发以将钩部件的钩定位在锁定部件的窗口内之后，当刀架从其前进位置返回到其缩回位置时，锁定部件被定位成在钩部件与外壳壳体的内壳体部分之间通过。
在一些实施例中，锁定部件包含远侧安装部分，所述远侧安装部分被固定到刀架的内壁，以将锁定部件以悬臂方式固定到刀架。
在某些实施例中，钩部件的钩具有连接到主体的近侧部分和接合外壳组件的内壳体部分的尖端，其中尖端定位在钩的近侧部分的近侧。
本公开的另一方面涉及一种重新装载组件，其包含外壳壳体、钉仓、刀架、第一锁定部件和第二锁定部件。外壳壳体包含内壳体部分、外壳体部分以及定位在内壳体部分与外壳体部分之间的至少一个引导部分。内壳体部分与外壳体部分间隔开以在内壳体部分与外壳体部分之间限定环形空腔。钉仓被支撑在外壳壳体的远侧部分上，且限定收纳钉的多个钉凹座。刀架包含限定纵向轴线且支撑刀的主体。刀架的主体包含多个纵向延伸的主体部分，所述多个纵向延伸的主体部分彼此间隔开以限定纵向狭槽，所述纵向狭槽收纳外壳壳体的至少一个引导部分。纵向延伸的部分包含限定中心孔的内壁。外壳壳体的内壳体部分定位在刀架的中心孔内，使得刀架可围绕外壳壳体的内壳体部分在前进位置与缩回位置之间移动。第一锁定部件被支撑在外壳壳体的至少一个引导部分上，并且包含具有第一钩的弹性主体，所述第一钩从至少一个引导部分径向向外延伸。第二锁定部件被支撑在刀架的内壁上，并且包含由弹性材料形成的主体，所述主体具有第二钩，所述第二钩径向向内延伸到刀架的中心孔中。当刀架处于击发前缩回位置时，第二锁定部件定位在第一锁定部件与外壳壳体的至少一个引导部分之间，使得第一钩和第二钩未对准，以及当刀架在处于击发后缩回位置时，第二钩部件从第一钩部件径向向外定位，使得第一钩和第二钩对准以阻碍刀架的重新前进。
在实施例中，第一锁定部件和第二锁定部件由板簧形成。
在一些实施例中，第一锁定部件的第一钩包含具有面向远侧的锥形表面的远侧部分，并且第二锁定部件的第二钩包含具有面向近侧的锥形表面的近侧部分，其中当刀架从其前进位置移动到其缩回位置以允许第二锁定部件越过第一锁定部件时，面向远侧的锥形表面接合面向近侧的锥形表面。
附图说明
下文参考附图对所公开的重新装载组件的各种实施例进行了描述，其中：
图1是根据本公开的包含所公开的重新装载组件的示例性实施例的圆形钉合装置的侧面透视图；
图2是图1的重新装载组件的侧面透视图；
图3是图2的重新装载组件的分解侧面透视图；
图4是图3所示的所指示的细节区域的放大视图；
图5是图3所示的重新装载组件的刀架的截面图；
图6是图3所示的所指示的细节区域的放大视图；
图7是沿重新装载组件的纵向轴线截取的图3所示的重新装载组件的透视截面图，其中重新装载组件处于击发前状态；
图8是沿重新装载组件的纵向轴线截取的图3所示的重新装载组件的截面图，其中重新装载组件处于击发前状态；
图9是图8所示的所指示的细节区域的放大视图；
图10是沿图9的剖面线10-10截取的截面图；
图11是图3所示的重新装载组件的锁定部件的侧面透视图；
图12是沿重新装载组件的纵向轴线截取的图3所示的重新装载组件的截面图，其中重新装载组件处于击发状态并且刀架处于前进位置；
图13是图12所示的所指示的细节区域的放大视图；
图14是沿重新装载组件的纵向轴线截取的图3所示的重新装载组件的截面图，其中重新装载组件处于击发状态并且刀架处于缩回位置；
图15是图14所示的所指示的细节区域的放大视图；
图16是图14所示的重新装载组件的锁定部件与钩部件之间的相互作用的侧面透视图，其中锁定部件和钩部件处于锁定位置；
图17是图3所示的重新装载组件的所公开的锁定部件和钩部件的另一示例性实施例的侧面透视图；
图18是图1所示的钉合装置的所公开的重新装载组件的另一示例性实施例的外壳壳体的透视截面图，其中锁定部件固定到外壳壳体的内壳体部分；
图19是所公开的重新装载组件的另一示例性实施例的刀架的透视截面图，其中锁定部件固定到刀架的主体；
图20是包含分别在图18和图19中示出的锁定部件和钩部件的重新装载组件的截面图，其中重新装载组件处于击发前状态；
图21是图20所示的重新装载组件的截面图，其中重新装载组件处于击发状态并且刀架处于前进位置；以及
图22是图20所示的重新装载组件的截面图，其中重新装载组件处于击发状态并且刀架处于缩回位置。
具体实施方式
现在将参考附图对所公开的重新装载组件进行详细描述，其中在几个视图的每一个中，相同的附图标记表示相同或对应的元件。然而，应当理解，所公开的实施例仅是本公开内容的实施例，并且可以以各种形式实施。没有详细描述众所周知的功能或构造，以避免在不必要的细节中模糊本公开内容。因此，本文公开的具体结构和功能细节不应被解释为限制性的，而仅仅是作为权利要求的基础以及作为教导本领域技术人员以实际上任何适当的详细结构来不同地采用本公开内容的代表性的基础。另外，如“前”、“后”、“上”、“下”、“顶部”、“底部”、“远侧”、“近侧”的方向术语以及类似术语用于帮助理解描述且并非旨在限制本公开。
在本说明书中，术语“近侧”通常用来指代装置的较接近临床医生的那部分，而术语“远侧”通常用来指代装置的较远离临床医生的那部分。另外，术语“内窥镜”通常用于指内窥镜、腹腔镜、关节镜和/或通过小直径切口或套管进行的任何其它程序。此外，术语“临床医生”通常用来指代包含医生、护士和支持人员的医务人员。
图1和图2示出了圆形钉合装置10，其包含所公开的重新装载组件的示例性实施例，所述重新装载组件通常显示为重新装载组件100。钉合装置10包含手柄组件12、细长主体或适配器组件14、重新装载组件100和砧座组件18，所述砧座组件18被支撑用于在如本领域已知的间隔位置和接近位置之间相对于重新装载组件100移动。重新装载组件100包含近侧部分102，所述近侧部分102可释放地联接到细长主体14的远侧部分14a。手柄组件12包含固定把手22，所述固定把手22支撑用于控制钉合装置10的各种功能的操作的致动按钮24，所述操作包含重新装载组件100和砧座组件18分别接近、从重新装载组件100击发钉和切割组织或取出组织的核心。
钉合装置10被示出为电动钉合装置，所述电动钉合装置包含可支持一个或多个电池(未示出)的电动手柄组件12。细长主体14呈适配器组件的形式，所述适配器组件将动力从手柄组件12分别传递到重新装载组件100和砧座组件18。电动钉合装置的实例可以在美国专利第9,055,943号(‘943专利)、第9,023,014号(‘014专利)以及美国公开第2018/0125495号和第2017/0340351号中找到，其全部内容通过引用并入本文。可选地，可以设想，本公开还可以并入到如在美国专利第7,303,106号(‘106专利)中公开的手动钉合装置中，或者并入到被配置成与如在美国专利第9,962,159号(‘159专利)中公开的不包含手柄组件的机器人系统一起使用的钉合装置中。‘106和‘159专利全部内容也通过引用并入本文。
参考图2和3，重新装载组件100包含外壳壳体110、钉致动器112、推钉构件112a、刀架114、支撑在刀架114上的环形刀116、钉仓118，以及支撑在钉仓118内的多个钉120。钉仓118为环形的，并限定钉凹座124的环形行。每个钉凹座124支撑多个钉120中的一个。钉致动器112和推钉构件112a一起限定了纵向通孔132。钉致动器112具有远侧部分，所述远侧部分抵靠推钉构件112a的近侧部分，使得钉致动器112在外壳壳体110内的向远侧移动引起推钉构件112a的向远侧移动。重新装载件100的推钉构件112a具有多个指状件134。多个指状件134中的每一个收纳在钉仓118的钉凹座124中的相应一个钉凹座内，并且可移动通过相应的钉凹座124，以便在推钉构件130在外壳壳体110内从缩回位置移动到前进位置时从钉凹座124中弹出钉120。
外壳壳体110包含外壳体部分140和内壳体部分142，其彼此间隔开以在内壳体部分142与外壳体部分140之间限定环形空腔144。钉致动器112、推钉构件112a、刀架114和环形刀116可在外壳壳体110的环形空腔144内在缩回位置与前进位置之间移动。钉致动器112和推钉构件112a可独立于刀架114和环形刀116从其缩回位置移动到其前进位置，以从钉仓118中弹出钉120。环形刀116限定圆柱形空腔117，支撑在刀架114的外表面周围，且包含远侧切割边缘117a。刀架114和环形刀116可在钉致动器112的通孔132内移动。在钉致动器112和推钉构件112a从其缩回位置移动到其前进位置之后，刀架114可从其缩回位置移动到其前进位置，以切割从钉仓118径向向内定位的组织。
外壳壳体110的内壳体部分142限定通孔150(图3)，所述通孔150收纳砧座组件18的砧座轴(未示出)。对于示例性砧座组件18的更详细描述，参见例如‘106专利。通孔150具有收纳套管152的近侧部分，所述套管152限定通孔150a，所述通孔150a是同轴的并形成内壳体部分142的通孔150的延伸。在实施例中，套管152由高强度材料(例如，金属)形成，以向外壳壳体110的内壳体部分142提供增加的强度，并且包含环形凸缘151。
外壳壳体110包含支撑联接机构160(图2)的近侧部分158(图3)，所述联接机构可用于可释放地将重新装载组件100联接到钉合装置10(图1)的适配器组件14以促进替换重新装载组件100和重新使用钉合装置10。联接机构160包含保持构件162和联接构件164。联接构件164被收纳在外壳壳体110的近侧部分158(图3)周围，且被配置成接合适配器组件14的远侧部分14a(图1)以将重新装载组件100联接到适配器组件14。可以设想，可以使用其它联接机构将重新装载组件100固定到适配器组件14。
重新装载组件100可包含支撑在外壳壳体110上并被配置成支撑e-prom(未示出)的e-prom固持器170(图3)。如本领域已知的，e-prom可与适配器组件14连通，以向适配器组件14和手柄组件12提供与重新装载组件10的特性相关的信息。
参考图3-5，刀架114可移动地定位在钉致动器112和推钉构件112a的通孔132(图6)内在其缩回位置与前进位置之间并限定阶梯式中心孔172。阶梯式中心孔172包含小直径近侧部分172a(图5)和较大直径远侧部分172b。刀架114的中心孔172的近侧部分172a收纳外壳壳体110的内壳体部分142(图8)，使得刀架114围绕内壳体部分142滑动。
刀架114限定环形肩部176(图5)，所述环形肩部176定位于中心孔172的近侧部分172a与远侧部分172b之间。中心孔172的近侧部分172a由纵向延伸的主体部分173(图5)限定，所述纵向延伸的主体部分173通过纵向狭槽178彼此分离。纵向狭槽178收纳外壳壳体110的引导部分179(图7)以在刀架114在其前进位置与缩回位置之间移动时将刀架114限制为在外壳壳体110的环形空腔144内纵向移动。刀架114的近侧部分172a包含支撑锁定部件180(图4)的内壁表面115(图5)。
在实施例中，锁定部件180包含具有远侧安装部分182a和近侧锁定部分182b的弹性主体182(图4)。弹性主体182的远侧安装部分182a以悬臂方式固定到刀架114的内壁115。在实施例中，远侧安装部分182a限定两个开口184，所述两个开口184收纳螺钉或铆钉186(图5)，以将锁定部件180的远侧安装部分182a固定到刀架114的内壁表面115。另选地，可以使用多种已知的附接技术将锁定部件180固定到刀架114。锁定部件180的近侧锁定部分182b包含位于近侧的锁定构件188，并且限定了定位在锁定构件188与远侧安装部分182a之间的窗口或开口190。在实施例中，锁定构件188向内倾斜进入刀架114的中心孔172，并限定顶点或尖端191。
参考图6-8，外壳壳体110的内壳体部分142支撑钩部件200，所述钩部件200包含近侧安装部分202和主体204，所述主体204包含具有尖端或顶点208的钩206。在实施例中，安装部分202是环形构件，并且围绕套管152被收纳在套管152的凸缘151与内壳体部分142的近侧端部210之间，使得包含钩206的主体204定位在安装部分202的远侧，其中钩206的尖端208在从主体204向近侧的方向上延伸。在实施例中，钩部件200以悬臂方式由安装部分202支撑，其中钩206被偏置成与外壳壳体110的内壳体部分142接合。
参考图8-11，当重新装载组件100被组装并且刀架114在外壳壳体110内处于缩回位置时，固定到刀架114的内壁表面115的锁定部件180处于从钩部件200径向向外并与钩部件200接合的缩回位置，使得锁定部件180从外壳壳体110的内壳体部分142向外偏置。在该位置，钩部件200的钩206定位于锁定部件180的窗口190下方，并与外壳壳体110的内壳体部分142接合。
参考图12和13，在钉致动器112和推钉构件112a沿箭头“A”所指示的方向前进以将钉120从钉仓118驱动到砧座组件18中之后，刀架114沿箭头“B”所指示的方向使刀116沿箭头“C”所指示的方向前进以切割组织。当刀架114沿方向“B”前进时，固定到刀架114的锁定部件180相对于钩部件200沿箭头“D”所指示的方向纵向移动(图13)。当锁定部件180的锁定构件188移动到钩部件200的远侧位置时，随着钩部件200的主体204沿图13中的箭头“E”所指示的方向从外壳壳体110的内壳体部分142径向向外移动，钩部件200的钩206返回到无偏状态。另外，当锁定部件180的锁定构件188向钩部件200的远侧移动时，弹性主体182移动成与钩部件200脱离接合并且沿图13中箭头“F”所指示的方向朝着其无偏状态向内移动，使得锁定部件180的锁定构件188与外壳壳体110的内壳体部分142接合，并从钩部件200的主体204的远侧端部的径向向内定位。
参考图14-17，在沿图14和15中的箭头“G”所指示的方向击发重新装载组件100之后，当刀架114移回到其缩回位置时，锁定部件的锁定构件188在钩部件200的主体204下方移动并接合钩部件200的钩206。当锁定构件188接合钩206时，钩部件200的主体204沿箭头“H”所指示的方向从内壳体部分142径向向外偏置，使得锁定构件188穿过钩206下方，并且钩206移动通过锁定部件180的窗口190，使得锁定构件188的尖端191移动成与外壳壳体110的内壳体部分142接合。在该位置，钩206与锁定部件180的主体182的近侧部分(其限定了窗口190)之间的接合阻碍了钩部件200的重新前进，从而阻碍了刀架114和刀116的重新前进。
上述结构阻碍了刀架114和刀116的重新前进，以将刀116安全地保持在重新装载组件100的外壳壳体110内。这最小化了在操作和处置重新装载组件200期间对临床医生造成伤害的风险。
尽管在动力手持器械的背景下描述了所公开的重新装载件，但是应当理解，所公开的重新装载件可以适于与机器人控制的系统以及手动器械一起使用。例如，重新装载件可以与适配器14一起使用，所述适配器14被配置成联接到机器人控制的手术系统。
参考图17，在替代实施例中，锁定部件200'可以形成有钩206'，并且钩部件200'可以形成有限定窗口190'的主体204'。锁定部件180'的远侧端部定位成在钉合装置10(图1)被击发并且刀架114(图12)被缩回之后越过部件200'的锁定构件188'并到达部件200'的主体204上，使得钩206'被收纳在窗口190'内。如以上关于重新装载件100(图3)所讨论的，钩206'容纳在窗口190'内阻碍了刀架114(图12)的重新前进，以最小化在操作和处置重新装载组件200期间对临床医生造成伤害的风险。
图18-22示出了总体上以300示出的所公开的重新装载组件的替代实施例。重新装载组件300基本类似于重新装载组件100，不同之处在于锁定部件和钩部件已更改。本文中仅更详细地描述这些部件。
图18示出了重新装载组件300(图20)的外壳壳体310，其包含外壳体部分340、内壳体部分342和引导部分379。引导部分379定位于外壳部分340与内外壳部分342之间。引导部分379中的至少一个支撑第一锁定部件402。第一锁定部件402包含具有钩406的弹性主体404，所述钩406从相应的引导部分379径向向外延伸。
图18和19示出了重新装载组件300的外壳壳体310和刀架314。刀架314包含限定中心孔372的纵向延伸的主体部分373。纵向延伸的主体部分373通过纵向狭槽378彼此分开，所述纵向狭槽378收纳外壳壳体310的引导部分379(图18)，以在刀架314在前进位置与缩回位置之间移动时将刀架314限制为在外壳壳体310内纵向移动。
刀架314的近侧部分包含支撑第二锁定部件380(图19)的内壁表面315。第二锁定部件380由弹性材料形成，并且包含具有第二钩382的近侧端部，所述第二钩382径向向内延伸到刀架314的中心孔372中。在实施例中，第一锁定部件402和第二锁定部件380分别由板簧形成。
当重新装载组件300处于击发前位置并且刀架314处于其缩回位置时，如图20所示，第一锁定部件402的与钩406相对的一侧与第二锁定部件380的与钩382相对的一侧接合。在该位置，第一锁定部件402与第二锁定部件380对准并接合，其中第一锁定部件402和第二锁定部件380的钩406和382彼此背对以允许刀架314和刀316相对于外壳壳体310的内壳体部分342前进。
当刀架314沿图21中的箭头“J”所指示的方向围绕外壳壳体310的内壳体部分342前进以使第二锁定部件380前进到在第一锁定部件402远侧的位置时，第一锁定部件402和第二锁定部件380移动成彼此脱离接合。当发生这种情况时，第一锁定部件402沿箭头“L”所指示的方向返回到其无偏状态，在该状态下，第一锁定部件402的与第一钩406相对的一侧靠着引导件379定位。类似地，第二锁定部件380沿箭头“M”所指示的方向返回到其无偏状态，在该状态下，第二锁定部件380的与钩382相对的一侧靠着刀架314的内壁表面315定位。当第一锁定部件402和第二锁定部件380返回到其无偏状态时，钩406和382的锥形表面406a和382a彼此隔开并对准。
在钉合装置10(图1)已经被击发并且刀已经前进以切割安置在砧座组件18与钉仓118之间的组织之后，当刀架314沿箭头“N”(图22)所指示的方向从其前进位置移动回到其缩回位置时，第二锁定部件380相对于第一锁定部件402移动，使得钩406和382的锥形表面406a和382a彼此接合、变形并通过彼此。当刀架114处于其缩回位置时，钩406和380彼此对准，以阻碍刀架314和刀316移动回到其前进位置。
上述结构阻碍了刀架314和刀316的重新前进，以将刀316安全地保持在重新装载组件300的外壳壳体310内。这最小化了在操作和处置重新装载组件300期间对临床医生造成伤害的风险。
本领域技术人员将理解，本文具体描述并在附图中示出的装置和方法是非限制性示例性实施例。可以设想，在不脱离本公开的范围的情况下，结合一个示例性实施例示出或描述的元件和特征可以与另一实施例的元件和特征组合。同样，本领域技术人员基于以上述实施例将理解本公开的另外的特征和优点。因此，除了由所附权利要求指示之外，本公开不受已经特别示出和描述的内容的限制。
Claims (17)
1.一种重新装载组件，其包括：
外壳壳体，所述外壳壳体包含内壳体部分和外壳体部分，所述内壳体部分与所述外壳体部分间隔开以在所述内壳体部分与所述外壳体部分之间限定环形空腔；
钉仓，所述钉仓支撑在所述外壳壳体的远侧部分上，所述钉仓具有多个钉凹座，所述钉凹座中的每一个收纳钉；
推动器，所述推动器支撑在所述环形空腔内，所述推动器能在缩回位置与前进位置之间移动，以从所述钉仓中弹出所述钉；
刀架，所述刀架包含限定纵向轴线且支撑刀的主体，所述刀架的所述主体包含限定中心孔的内壁，所述外壳壳体的所述内壳体部分定位在所述刀架的所述中心孔内，使得所述刀架能围绕所述外壳壳体的所述内壳体部分在前进位置与缩回位置之间移动；
锁定部件，所述锁定部件支撑在所述刀架的所述内壁上，所述锁定部件具有由弹性材料形成并限定窗口的主体；和
钩部件，所述钩部件支撑在所述外壳壳体的所述内壳体部分上并且包含具有钩的主体，在所述重新装载组件被击发以阻碍所述刀架移动回到其前进位置之后，当所述刀架处于其缩回位置时，所述钩被收纳在所述锁定部件的所述窗口内。
2.根据权利要求1所述的重新装载组件，其中所述锁定部件包含弹性主体，所述弹性主体具有定位在所述窗口近侧的锁定构件，在所述重新装载组件的击发之前，当所述刀架处于缩回位置时，所述弹性主体被定位在所述钩部件与所述刀架之间。
3.根据权利要求2所述的重新装载组件，其中所述钩朝着所述外壳壳体的所述内壳体部分向下倾斜。
4.根据权利要求3所述的重新装载组件，其中所述钩部件包含近侧安装部分，所述近侧安装部分被固定到所述内壳体部分，使得所述钩部件以悬臂方式被支撑到所述外壳壳体的所述内壳体部分。
5.根据权利要求4所述的重新装载组件，其中在所述重新装载组件被击发以将所述钩部件的所述钩定位在所述锁定部件的所述窗口内之后，当所述刀架从其前进位置返回到其缩回位置时，所述锁定部件被定位成在所述钩部件与所述外壳壳体的所述内壳体部分之间通过。
6.根据权利要求5所述的重新装载组件，其中所述锁定部件包含远侧安装部分，所述远侧安装部分被固定到所述刀架的所述内壁，以将所述锁定部件以悬臂方式固定到所述刀架。
7.根据权利要求6所述的重新装载组件，其中所述钩部件的所述钩具有连接到所述主体的近侧部分以及接合外壳组件的所述内壳体部分的尖端，所述尖端定位在所述钩的所述近侧部分的近侧。
8.一种圆形钉合装置，其包括：
细长主体，所述细长主体具有近侧部分和远侧部分；和
重新装载组件，所述重新装载组件支撑在所述细长主体的所述远侧部分上，所述重新装载组件包含：
外壳壳体，所述外壳壳体包含内壳体部分和外壳体部分，所述内壳体部分与所述外壳体部分间隔开以在所述内壳体部分与所述外壳体部分之间限定环形空腔；
钉仓，所述钉仓支撑在所述外壳壳体的远侧部分上，所述钉仓具有多个钉凹座，所述钉凹座中的每一个收纳钉；
推动器，所述推动器支撑在所述环形空腔内，所述推动器能在缩回位置与前进位置之间移动，以从所述钉仓中弹出所述钉；
刀架，所述刀架包含限定纵向轴线且支撑刀的主体，所述刀架的所述主体包含限定中心孔的内壁，所述刀架能围绕所述外壳壳体的所述内壳体部分在前进位置与缩回位置之间移动；
锁定部件，所述锁定部件支撑在所述刀架的所述内壁上，所述锁定部件具有由弹性材料形成并限定窗口的主体；和
钩部件，所述钩部件支撑在所述外壳壳体的所述内壳体部分上并且包含具有钩的主体，在所述重新装载组件被击发以阻碍所述刀架移动回到其前进位置之后，当所述刀架处于其缩回位置时，所述钩被收纳在所述锁定部件的所述窗口内。
9.根据权利要求8所述的圆形钉合装置，其中所述锁定部件包含弹性主体，所述弹性主体具有定位在所述窗口近侧的锁定构件，在所述重新装载组件的击发之前，当所述刀架处于缩回位置时，所述弹性主体被定位在所述钩部件与所述刀架之间。
10.根据权利要求9所述的圆形钉合装置，其中所述钩朝着所述外壳壳体的所述内壳体部分向下倾斜。
11.根据权利要求10所述的圆形钉合装置，其中所述钩部件包含近侧安装部分，所述近侧安装部分被固定到所述内壳体部分，使得所述钩部件以悬臂方式被支撑到所述外壳壳体的所述内壳体部分。
12.根据权利要求11所述的圆形钉合装置，其中在所述重新装载组件被击发以将所述钩部件的所述钩定位在所述锁定部件的所述窗口内之后，当所述刀架从其前进位置返回到其缩回位置时，所述锁定部件被定位成在所述钩部件与所述外壳壳体的所述内壳体部分之间通过。
13.根据权利要求12所述的圆形钉合装置，其中所述锁定部件包含远侧安装部分，所述远侧安装部分被固定到所述刀架的所述内壁，以将所述锁定部件以悬臂方式固定到所述刀架。
14.根据权利要求13所述的圆形钉合装置，其中所述钩部件的所述钩具有连接到所述主体的近侧部分以及接合外壳组件的所述内壳体部分的尖端，所述尖端定位在所述钩的所述近侧部分的近侧。
15.一种重新装载组件，其包括：
外壳壳体，所述外壳壳体包含内壳体部分、外壳体部分和定位在所述内壳体部分与所述外壳体部分之间的至少一个引导部分，所述内壳体部分与所述外壳体部分间隔开以在所述内壳体部分与所述外壳体部分之间限定环形空腔；
钉仓，所述钉仓支撑在所述外壳壳体的远侧部分上，所述钉仓限定多个钉凹座，所述钉凹座中的每一个收纳钉；
刀架，所述刀架包含限定纵向轴线且支撑刀的主体，所述刀架的所述主体包含多个纵向延伸的主体部分，所述多个纵向延伸的主体部分彼此间隔开以限定纵向狭槽，所述纵向狭槽收纳所述外壳壳体的所述至少一个引导部分，所述纵向延伸的部分的内壁限定中心孔，所述外壳壳体的所述内壳体部分定位在所述刀架的所述中心孔内，使得所述刀架能围绕所述外壳壳体的所述内壳体部分在前进位置与缩回位置之间移动；
第一锁定部件，所述第一锁定部件支撑在所述外壳壳体的所述至少一个引导部分上，所述第一锁定部件包含具有第一钩的弹性主体，所述第一钩从所述至少一个引导部分径向向外延伸；和
第二锁定部件，所述第二锁定部件支撑在所述刀架的所述内壁上，所述第二锁定部件包含由弹性材料形成的主体，所述主体具有第二钩，所述第二钩径向向内延伸到所述刀架的所述中心孔中；
其中当所述刀架处于击发前缩回位置时，所述第二锁定部件定位在所述第一锁定部件与所述外壳壳体的所述至少一个引导部分之间，使得所述第一钩和所述第二钩未对准，以及当所述刀架处于击发后缩回位置时，所述第二钩部件从所述第一钩部件径向向外定位，使得所述第一钩和所述第二钩对准以阻碍所述刀架的重新前进。
16.根据权利要求15所述的重新装载组件，其中所述第一锁定部件和第二锁定部件由板簧形成。
17.根据权利要求15所述的重新装载组件，其中所述第一锁定部件的所述第一钩包含具有面向远侧的锥形表面的远侧部分，并且所述第二锁定部件的所述第二钩包含具有面向近侧的锥形表面的近侧部分，当所述刀架从所述前进位置移动到所述缩回位置以允许所述第二锁定部件越过所述第一锁定部件时，所述面向远侧的锥形表面接合所述面向近侧的锥形表面。
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| US16/878,094 US11192227B2 (en) | 2019-07-16 | 2020-05-19 | Reload assembly for circular stapling devices |
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| US11331782B2 (en) * | 2019-03-01 | 2022-05-17 | Covidien Lp | Reload assembly for a circular stapling device |
| US11357509B2 (en) * | 2019-07-11 | 2022-06-14 | Covidien Lp | Reload assembly for a circular stapling device |
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-
2020
- 2020-05-19 US US16/878,094 patent/US11192227B2/en active Active
- 2020-07-02 CN CN202010633363.4A patent/CN112237456A/zh active Pending
- 2020-07-10 EP EP20185269.6A patent/EP3766434B1/en active Active
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2021
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| US20210016426A1 (en) | 2021-01-21 |
| EP3766434A1 (en) | 2021-01-20 |
| EP3766434B1 (en) | 2023-10-25 |
| US11518014B2 (en) | 2022-12-06 |
| US20220088759A1 (en) | 2022-03-24 |
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