CN113367756A - 具有两部分刀组件的外科缝合装置 - Google Patents
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Abstract
本发明涉及具有两部分刀组件的外科缝合装置，并提供一种重新装载组件，还提供了一种缝合装置，所述缝合装置包含重新装载组件和砧座组件。所述砧座组件支撑切割环。所述重新装载组件包含刀组件，所述刀组件具有彼此间隔开的远侧刀部分和近侧刀部分。所述远侧刀部分包含切割边缘，并且可与所述近侧刀部分一起从缩回位置移动到推进位置以与所述切割环接合。在所述推进位置，所述远侧刀部分被所述切割环保持，以遮蔽所述远侧刀部分的所述切割边缘。
Description
技术领域
本公开通常涉及缝合装置，并且更具体地涉及包含用于切割组织的刀的圆形缝合装置。
背景技术
圆形缝合装置通常包含：外壳或重新装载组件，所述外壳或重新装载组件包含支撑一个或多个环形钉排的钉仓；用于从钉仓弹出钉的推钉器；以及定位在用于切割组织的环形钉排的径向内侧的环形刀。所述刀可以与推钉器同步移动或独立于推钉器而移动以在例如吻合手术的外科手术期间切割组织。
在吻合手术期间，两个管状的组织切片彼此附接，并且用刀对环形刀内的组织切片进行取芯，以在连接的管状切片之间限定中空通道。一般来说，在组织切片被切割之后，组织圆环保持在重新装载组件的环形刀内。当从患者身上取出重新装载组件时，临床医生从刀内取出组织圆环。
在吻合手术期间致动圆形缝合装置以切割组织之后，将刀从推进位置移动到缩回位置，在所述缩回位置，刀的切割边缘凹入并遮蔽在重新装载组件的外壳壳体内。在从环形刀内取出组织圆环期间，沿回到推进位置的方向拉动刀的切割边缘，并且可能会露出所述切割边缘。
发明内容
本公开的技术通常涉及具有用于切割组织的刀的圆形缝合装置。
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、推钉构件、刀架和刀组件。外壳壳体限定空腔且具有近侧部分和远侧部分。钉仓支撑在外壳壳体的远侧部分上且支撑多个钉。推钉构件可在外壳壳体内在推进位置与缩回位置之间移动，以从钉仓弹出多个钉。推钉构件限定纵向孔。刀架支撑在推钉构件的纵向孔内，且所述刀架可在外壳壳体内的缩回位置与推进位置之间移动。刀组件包含远侧刀部分和近侧刀部分。近侧刀部分固定到刀架，并且可随着所述刀架在其缩回位置与推进位置之间移动而与所述刀架一起移动。远侧刀部分与近侧刀部分呈邻接关系，使得刀架可独立于远侧刀部分而从其推进位置移动到其缩回位置。
本公开的另一方面涉及一种缝合装置，其包含手柄组件、适配器组件、砧座组件和重新装载组件。适配器组件从手柄组件延伸并且具有远侧末端部分。砧座组件包含切割环。重新装载组件支撑在适配器组件的远侧末端部分上，并且包含外壳壳体、钉仓、推钉构件、刀架和刀组件。外壳壳体限定空腔且具有近侧部分和远侧部分。钉仓支撑在外壳壳体的远侧部分上且支撑多个钉。推钉构件可在外壳壳体内在推进位置与缩回位置之间移动，以从钉仓弹出多个钉。推钉构件限定纵向孔。刀架支撑在推钉构件的纵向孔内。刀架可在外壳壳体内的缩回位置与推进位置之间移动。刀组件包含远侧刀部分和近侧刀部分。近侧刀部分固定到刀架，并且可随着所述刀架在其缩回位置与推进位置之间移动而与所述刀架一起在缩回位置与推进位置之间移动。远侧刀部分与近侧刀部分呈邻接关系，使得近侧刀部分到其推进位置的移动将远侧刀部分移动到推进位置。刀架可独立于远侧刀部分而从其推进位置移动到其缩回位置。
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、推钉构件和刀组件。外壳壳体限定空腔且具有近侧部分和远侧部分。钉仓支撑在外壳壳体的远侧部分上且支撑多个钉。推钉构件可在外壳壳体内在推进位置与缩回位置之间移动，以从钉仓弹出多个钉。推钉构件限定纵向孔。刀组件包含远侧刀部分和近侧刀部分。远侧刀部分与近侧刀部分呈邻接关系，使得近侧刀部分可独立于远侧刀部分而从其推进位置移动到其缩回位置。
在本公开的各方面，近侧刀部分和远侧刀部分是环形的。
在本公开的一些方面，近侧刀部分具有第一直径，并且远侧刀部分具有第二直径，其中所述第一直径等于所述第二直径。
在本公开的某些方面，远侧刀部分包含环形切割边缘。
在本公开的各方面，刀架包含远侧主体部分，所述远侧主体部分包含沿着刀组件延伸以维持近侧刀部分与远侧刀部分之间的对准的远侧延伸部。
在本公开的一些方面，远侧刀部分包含邻近且接近于环形切割边缘而定位的开口。
在本公开的各方面，开口的尺寸被设置成收纳砧座组件的保持构件。
在本公开的某些方面，重新装载组件包含被调适成将重新装载组件固定到缝合装置的联接机构。
在以下附图和描述中阐述本公开的一个或多个方面的细节。根据说明书和附图以及权利要求书，本公开中所描述的技术的其它特征、目的和优点将显而易见。
附图说明
参考附图描述本公开的各种方面和特征，其中相同的标号在若干视图中的每一个中表示相同或对应元件，并且：
图1是根据本公开的各方面的包含具有重新装载组件的工具组件的外科缝合装置的侧面透视图；
图2是图1中所展示的重新装载组件的分解侧面透视图；
图3是图2中所展示的重新装载组件的两部分刀组件的侧面透视图；
图4是图1中所展示的指定细节区域的放大视图；
图5是沿着图4的截面线5-5截得的横截面图，其中工具组件处于未夹持、击发前的位置；
图6是沿着图4的截面线5-5截得的横截面图，其中工具组件处于已夹持、已击发和推进位置；
图7是沿着图4的截面线5-5截得的横截面图，其中工具组件在刀断裂成两部分的情况下处于已夹持、已击发和缩回位置；
图8是图1所展示的工具组件的侧面透视图，其中工具组件在刀断裂成两部分的情况下处于已夹持、已击发和缩回位置；
图9是图1所展示的处于已夹持、击发前的位置的工具组件的替代形式的侧视横截面局部剖视图；
图10是图9中所展示的处于夹持位置的工具组件的侧视横截面局部剖视图，此时推进刀以切割组织并击发工具组件；
图11是图9中所展示的处于夹持位置的工具组件的侧视横截面局部剖视图，其中推进刀以切割组织并击发工具组件；以及
图12是图11中所展示的处于未夹持位置的工具组件的侧视横截面局部剖视图，其中刀断裂并缩回。
具体实施方式
现在将参考附图详细地描述与外科缝合装置相关联的所公开的重新装载组件，其中相同的参考标号在若干视图中的每一个中表示相同或对应元件。然而，应理解，所公开的各方面仅是本公开的示例，并且可以各种形式体现。未详细描述众所周知的功能或构造以避免用不必要的细节混淆本公开。因此，本文中所公开的具体结构和功能细节不应被解释为限制性的，而是仅作为权利要求书的基础，并且作为用于教示所属领域的技术人员以在实际上任何适当的详细结构中来不同地采用本公开的代表性基础。另外，例如“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本说明书且并非旨在限制本公开。
在本说明书中，术语“近侧”通常用于指代在装置以其惯用方式进行使用期间装置的更接近临床医生的那部分，而术语“远侧”通常用于指代在装置以其惯用方式进行使用期间装置的距离临床医生较远的那部分。另外，术语“临床医生”通常用于指代医务人员，包含医生、护士和辅助人员。
图1说明包含根据本公开的各方面的通常展示为重新装载组件100的重新装载组件的圆形缝合装置10。圆形缝合装置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，所述砧座组件被支撑以相对于重新装载组件100在间隔开的位置(图5)和夹持位置(图6)之间移动。重新装载组件100包含以可拆卸方式联接到适配器组件14的远侧部分的近侧部分102，且适配器组件14包含以可拆卸方式联接到手柄组件12的近侧部分。手柄组件12包含固定把手22，所述固定把手支撑用于控制圆形缝合装置10的各种功能的操作的致动按钮24，所述操作包含接近重新装载组件100和砧座组件18、从重新装载组件100击发钉，以及切割组织或对组织进行取芯，如下文进一步详细描述。可以设想，手柄组件12、适配器组件14和/或重新装载组件可以彼此牢固地固定。
圆形缝合装置10被示为包含电动手柄组件12的电动缝合装置，所述电动手柄组件可支撑一个或多个电池(未展示)。适配器组件14将来自手柄组件12的电力分别转移到重新装载组件100和砧座组件18，以便缝合和切割组织。电动缝合装置的示例可见于第9,055,943号和第9,023,014号美国专利以及第2018/0125495号和第2017/0340351号美国公开案。或者，设想本文中所公开的重新装载组件100的各方面还可并入到例如公开于第7,303,106号美国专利('106专利)中的手动缝合装置或公开于例如第9,962,159号美国专利中的配置成与机器人***一起使用且不包含手柄组件的缝合装置中。
图2说明重新装载组件100的分解视图，其包含外壳壳体110、钉致动器112、推钉构件112a、刀架114、支撑在刀架114上的环形刀组件116、钉仓118，以及支撑在钉仓118内的多个钉120。外壳壳体110包含外壳体部分121和内壳体部分122，它们彼此间隔开以限定定位在外壳体部分121与内壳体部分122之间的环形空腔124(图5)。钉致动器112和推钉构件112a可在外壳壳体110的环形空腔124内从缩回位置移动到推进位置，以从钉仓118中弹出钉120，如下文进一步详细描述。
钉仓118是环形的并限定钉凹座126的环形排。每个钉凹座126支撑钉120中的一个。钉致动器112和推钉构件112a一起限定收纳刀架114的纵向通孔128(图5)。钉致动器112具有远侧部分，所述远侧部分邻接推钉构件112a的近侧部分，使得钉致动器112在外壳壳体110内的远侧移动引起推钉构件112a在外壳壳体110内的远侧移动。重新装载组件100的推钉构件112a具有多个指状件130。多个指状件130中的每一个收纳在钉仓118的钉凹座126中的相应一个钉凹座内，并且可移动通过相应的钉凹座126，以在推钉构件112a在外壳壳体110内从缩回位置移动到推进位置时从钉凹座126弹出钉120。
刀架114收纳在钉致动器112的纵向通孔128内，并且包含远侧主体部分140和多个隔开的纵向延伸的近侧主体部分142。远侧主体部分140和近侧主体部分142限定具有近侧部分144a和远侧部分144b的阶梯式中心孔。刀架114的阶梯式中心孔的近侧部分144a可滑动地收纳外壳壳体110的内壳体部分122，使得刀架114可在钉致动器112内围绕外壳壳体110的内壳体部分122在缩回位置(图5)与推进位置(图6)之间移动。刀架114的远侧主体部分140包含多个纵向延伸部146，所述多个纵向延伸部在下文进一步详细描述。刀架114的近侧主体部分142限定收纳外壳壳体110的导向部分(未展示)的狭槽148，以将刀架114限于在外壳壳体110内纵向移动。
图3和图4说明重新装载组件100的环形刀组件116，其包含近侧刀部分150和远侧刀部分152。近侧刀部分150是环形的，并且包含向内延伸的柄脚154，所述柄脚被收纳在限定在刀架114的远侧主体部分140内的凹座156(图2)内以将近侧刀部分150围绕刀架114而固定。或者，可以使用其它技术将近侧刀部分150固定到刀架114。刀组件116的远侧刀部分152也是环形的，并且包含近侧末端152a和远侧末端152b。远侧刀部分152的直径基本等于近侧刀部分150的直径，使得远侧刀部分152的近侧末端152a被定位成与近侧刀部分150的远侧末端150a呈邻接关系。远侧刀部分152的远侧末端152b限定环形切割边缘158。刀组件116的远侧刀部分152收纳在刀架114的纵向延伸部146(图4)周围。刀组件116的远侧刀部分152与刀架114的纵向延伸部146之间的接合维持了远侧刀部分152与近侧刀部分150(图4)之间的对准。
图2说明支撑联接机构160(图3)的外壳壳体110的近侧部分159。联接机构160可用于以可拆卸方式将重新装载组件100联接到缝合装置10(图1)的适配器组件14，以促进重新装载组件100的更换和缝合装置10的重复使用。联接机构160包含保持构件162和联接构件164。联接构件164收纳在外壳壳体110的近侧部分158周围，且被配置成接合适配器组件14的远侧部分14a(图1)以将适配器组件14联接到重新装载组件100。可以设想，其它联接机构可用于将重新装载组件100固定到适配器14。
重新装载组件100可包含支撑在外壳壳体110上以支撑e-prom(未展示)的e-prom固持器170(图2)。如本领域已知的，e-prom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。
图5说明处于击发前的未夹持位置的重新装载组件100和砧座组件18。在此位置，钉致动器112、推钉构件112a、刀架114和环形刀组件116处于它们的缩回位置，其中近侧刀部分150固定到刀架114，并且远侧刀部分152定位成与刀架114的纵向延伸部146与钉仓118的内壁之间的近侧刀部分150呈邻接关系。
砧座组件18包含壳体48和切割环组件50，所述切割环组件被收纳在由壳体48限定的空腔48a内，并且包含柔性切割环52和刚性支承板54。在本公开的各方面，如下所述，切割环组件50响应于被刀组件116接合而可在空腔48a内从缩回位置移动到推进位置。柔性切割环52由可被刀组件116穿透的材料形成，以促进切割夹持在砧座组件18与重新装载组件100的钉仓118之间的组织。
图6说明处于夹持和已击发位置的重新装载组件100和砧座组件18。在此位置，钉致动器112、推钉构件112a、刀架114和环形刀组件116已经沿着箭头“A”指示的方向移动到其推进位置。如所说明，在推钉构件112a的推进位置，推钉构件112a的指状件130被收纳在钉仓118的钉凹座126内，以从钉凹座126驱动钉120并形成抵靠砧座组件18的钉。在刀组件116的推进位置，刀组件116的远侧刀部分152与柔性切割环52接合并穿透所述柔性切割环。
图7和8说明处于击发后的未夹持位置的重新装载组件100和砧座组件18。在此位置，钉致动器112和刀架114沿着箭头“B”指示的方向返回到其缩回位置。由于推钉构件112a和钉致动器112仅呈邻接关系，因此推钉构件112a在指状件130被收纳在钉仓118的钉凹座126内的情况下保持在推进位置中。类似地，由于近侧刀部分150仅与刀组件116的远侧刀部分152呈邻接关系，因此当刀架114和近侧刀部分150返回到其缩回位置时，远侧刀部分152保持在其与柔性切割环52接合的推进位置中。应注意，远侧刀部分152与切割环组件50的柔性切割环52之间的摩擦接合将远侧刀部分152保持在其推进位置中，其中刀组件116的远侧刀部分152的环形切割边缘158掩藏在柔性切割环52内并由所述柔性切割环遮蔽。
图9至12说明根据本公开的其它方面的通常展示为重新装载组件200的另一重新装载组件。除了刀组件216的远侧刀部分252包含凹座或开口260之外，重新装载组件200与重新装载组件100基本相同。砧座组件18还包含切割环组件250，所述切割环组件包含柔性切割环352，所述切割环组件限定孔362，所述孔被定位成当刀组件216从其缩回位置(图9)移动到其推进位置时收纳刀组件216的远侧刀部分252。柔性切割环352包含保持构件364，所述保持构件延伸到孔362中，并且当刀组件216处于其推进位置(图11)且远侧刀部分252被定位在孔362内时，所述保持构件被收纳在远侧刀部分252中的开口260内。
图9说明在缩回位置中具有推钉构件212a和环形刀组件216(包含远侧刀部分252)的重新装载组件200。在此位置，推钉构件212a的指状件230在钉仓218的钉凹座226内在钉220近侧间隔开。另外，环形刀组件216凹入外壳壳体210内，使得远侧刀部分252的切割边缘258被外壳壳体210遮蔽。如所说明，刀架214的纵向延伸部246分别沿着近侧刀部分250和远侧刀部分252延伸，以维持近侧刀部分250与远侧刀部分252之间的对准。
图10说明当推钉构件212a和刀架214以及刀组件216朝向其推进位置移动时的重新装载组件200。随着推钉构件212a朝向其推进位置移动，推钉构件212a的指状件230移动通过钉仓218的钉凹座226，以从钉仓218弹出钉220。另外，推进刀架214以使刀组件216沿着箭头“C”指示的方向推进，以将刀组件216的远侧刀部分252移动到形成在切割环组件250的柔性切割环252中的孔262中。当刀组件216的远侧刀部分252的切割边缘258进入孔262时，切割边缘258接合并越过保持构件264。
图11说明刀架214和刀组件216处于其推进位置。在刀组件216的推进位置，远侧刀部分252被定位成使得柔性切割环352的保持构件364收纳在远侧刀部分252中的开口260中以将远侧刀部分252保持在其推进位置中。当在近侧刀部分250附接到刀架214的情况下将刀架214返回到其缩回位置时，远侧刀部分252保持附接到柔性切割环352，以保持远侧刀部分252的切割边缘258遮蔽在柔性切割环352的孔364内。
图12说明处于击发后的未夹持位置的重新装载组件200和砧座组件18。在此位置，钉致动器(未展示)和刀架214沿着箭头“D”指示的方向返回到其缩回位置。由于推钉构件212a和钉致动器(未展示)仅呈邻接关系，因此推钉构件212a在指状件230被收纳在钉仓218的钉凹座226内的情况下保持在推进位置中。类似地，由于近侧刀部分250仅与刀组件216的远侧刀部分252呈邻接关系，因此当刀架214和近侧刀部分250返回到其缩回位置时，远侧刀部分252保持在其与柔性切割环352接合的推进位置中。应注意，对远侧刀部分252的开口260内的柔性切割环352的保持构件364的收纳将远侧刀部分252保持在其推进位置中，其中刀组件216的远侧刀部分252的环形切割边缘258掩藏在柔性切割环352内并由所述柔性切割环遮蔽。
尽管在此未说明，但是可以设想，刀组件116、216可以直接固定到钉致动器112、212，使得刀组件116、216与钉致动器112、212和推钉构件112a、212a同时移动。在此类装置中，刀架214不需要包含在重新装载组件100、200中。
本领域的技术人员将理解，在本文中特定地描述并在附图中说明的装置和方法是本公开的非限制性的示例性方面。可以设想，在不脱离本公开的范围的情况下，结合本公开的一个示例性方面说明或描述的元件和特征可以与另一方面的元件和特征相结合。同样，本领域的技术人员也将基于上述实施例理解本公开的其它特征和优点。因此，除了由所附权利要求书所指示的以外，本公开不受已特别展示和描述的内容限制。
Claims (20)
1.一种重新装载组件，其包括：
外壳壳体，其限定空腔且具有近侧部分和远侧部分；
钉仓，其支撑在所述外壳壳体的所述远侧部分上，所述钉仓支撑多个钉；
推钉构件，其能在所述外壳壳体内在推进位置与缩回位置之间移动以从所述钉仓弹出所述多个钉，所述推钉构件限定纵向孔；
刀架，其支撑在所述推钉构件的所述纵向孔内，所述刀架能在所述外壳壳体内在缩回位置与推进位置之间移动；以及
刀组件，其包含远侧刀部分和近侧刀部分，所述近侧刀部分固定到所述刀架且能随着所述刀架在其缩回位置与推进位置之间移动而与所述刀架一起移动，所述远侧刀部分与所述近侧刀部分呈邻接关系，其中所述刀架能独立于所述远侧刀部分而从其推进位置移动到其缩回位置。
2.根据权利要求1所述的重新装载组件，其中所述近侧刀部分和所述远侧刀部分是环形的。
3.根据权利要求2所述的重新装载组件，其中所述近侧刀部分具有第一直径，并且所述远侧刀部分具有等于相等直径的第二直径。
4.根据权利要求1所述的重新装载组件，其中所述远侧刀部分包含环形切割边缘。
5.根据权利要求1所述的重新装载组件，其中所述刀架包含远侧主体部分，所述远侧主体部分具有沿着所述刀组件延伸以维持所述近侧刀部分与所述远侧刀部分之间的对准的远侧延伸部。
6.根据权利要求1所述的重新装载组件，其中所述远侧刀部分包含邻近且接近于所述环形切割边缘而定位的开口，所述开口的尺寸被设置成收纳砧座组件的保持构件。
7.根据权利要求1所述的重新装载组件，其进一步包含联接机构，所述联接机构被调适成将所述重新装载组件固定到缝合装置。
8.一种缝合装置，其包括：
手柄组件；
适配器组件，其从所述手柄组件延伸，所述适配器组件具有远侧末端部分；
砧座组件，其包含切割环；以及
重新装载组件，其支撑在所述适配器组件的所述远侧末端部分上，所述重新装载组件包含：
外壳壳体，其限定空腔且具有近侧部分和远侧部分；
钉仓，其支撑在所述外壳壳体的所述远侧部分上，所述钉仓支撑多个钉；
推钉构件，其能在所述外壳壳体内在推进位置与缩回位置之间移动以从所述钉仓弹出所述多个钉，所述推钉构件限定纵向孔；
刀架，其支撑在所述推钉构件的所述纵向孔内，所述刀架能在所述外壳壳体内的缩回位置与推进位置之间移动；以及
刀组件，其包含远侧刀部分和近侧刀部分，所述近侧刀部分固定到所述刀架且能随着所述刀架在其缩回位置与推进位置之间移动而与所述刀架一起在缩回位置与推进位置之间移动，所述远侧刀部分定位成与所述近侧刀部分呈邻接关系，使得所述近侧刀部分到其推进位置的移动将所述远侧刀部分移动到推进位置，其中所述刀架能独立于所述远侧刀部分而从其推进位置移动到其缩回位置。
9.根据权利要求8所述的缝合装置，其中所述近侧刀部分和所述远侧刀部分是环形的。
10.根据权利要求8所述的缝合装置，其中所述近侧刀部分具有第一直径，并且所述远侧刀部分具有等于所述第一直径的第二直径。
11.根据权利要求8所述的缝合装置，其中所述远侧刀部分包含环形切割边缘。
12.根据权利要求8所述的缝合装置，其中所述刀架包含远侧主体部分，所述远侧主体部分包含沿着所述刀组件延伸以维持所述近侧刀部分与所述远侧刀部分之间的对准的远侧延伸部。
13.根据权利要求8所述的缝合装置，其中所述远侧刀部分包含邻近且接近于所述远侧刀部分的环形切割边缘而定位的开口，且所述切割环限定孔且包含延伸到所述孔内的保持构件，当所述刀组合件的所述远侧刀部分处于其推进位置时，所述远侧刀部分收纳在所述孔内，当所述远侧刀部分处于推进位置时，所述保持构件收纳在所述开口内以将所述远侧刀部分保持在所述推进位置中。
14.根据权利要求8所述的缝合装置，其中所述重新装载组件进一步包含用于将所述重新装载组件固定到所述适配器组件的联接器。
15.一种重新装载组件，其包括：
外壳壳体，其限定空腔且具有近侧部分和远侧部分；
钉仓，其支撑在所述外壳壳体的所述远侧部分上，所述钉仓支撑多个钉；
推钉构件，其能在所述外壳壳体内在推进位置与缩回位置之间移动以从所述钉仓弹出所述多个钉，所述推钉构件限定纵向孔；以及
刀组件，其包含远侧刀部分和近侧刀部分，所述远侧刀部分与所述近侧刀部分呈邻接关系，其中所述近侧刀部分能独立于所述远侧刀部分而从其推进位置移动到其缩回位置。
16.根据权利要求15所述的重新装载组件，其中所述远侧刀部分包含环形切割边缘。
17.根据权利要求15所述的重新装载组件，其进一步包含固定到所述近侧刀部分的刀架，其中所述刀架包含远侧主体部分，所述远侧主体部分包含沿着所述刀组件延伸以维持所述近侧刀部分与所述远侧刀部分之间的对准的远侧延伸部。
18.根据权利要求15所述的重新装载组件，其中所述近侧刀部分和所述远侧刀部分是环形的。
19.根据权利要求15所述的重新装载组件，其中所述近侧刀部分具有第一直径，并且所述远侧刀部分具有等于所述第一直径的第二直径。
20.根据权利要求15所述的重新装载组件，其中所述远侧刀部分包含邻近且接近于所述环形切割边缘而定位的开口，所述开口的尺寸被设置成收纳砧座组件的保持构件。
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2020
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2021
- 2021-02-19 CN CN202110191402.4A patent/CN113367756A/zh active Pending
- 2021-02-24 EP EP21159082.3A patent/EP3871615A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP3871615A1 (en) | 2021-09-01 |
| US11382630B2 (en) | 2022-07-12 |
| US20210259692A1 (en) | 2021-08-26 |
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