CN104146739B - 锁定运送楔 - Google Patents
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
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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
- A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
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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
- A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
- A61B2017/00473—Distal part, e.g. tip or head
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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
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07221—Stapler heads curved
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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
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07271—Stapler heads characterised by its cartridge
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
- A61B2090/038—Automatic limiting or abutting means, e.g. for safety during shipment
Abstract
本发明提供一种锁定运送楔，该锁定运送楔通常包括主体部，该主体部具有从主体部突出的能够与装载单元的驱动组件接合的细长横向构件。锁定机构设置在运送楔的主体部上，其能够与可移动地安装在装载单元内的锁定结构接合。本发明还公开了一种装载单元，包括：主体部，其适合于可释放地固定到手术器械；工具组件，其结合到主体部；驱动组件，其能够从缩回位置移动到前进位置以致动工具组件；锁定楔，其可移除地支撑在主体部上以防止驱动组件移动到前进位置；以及锁定组件，其能够从与锁定楔接合以防止锁定楔从主体部移除的第一位置移动到便于锁定楔从主体部移除的第二位置，其中响应主体部到手术器械的固定而发生锁定组件从第一位置移动到第二位置。
Description
本申请是申请日为2010年10月27日，申请号为201010526377.2，发明名称为“锁定运送楔”的发明专利申请的分案申请。
技术领域
本公开涉及和手术器械的单一用途装载单元(“SULU”)一起使用的锁定运送楔。更特别地，本公开涉及固定手术器械的驱动组件的锁定运送楔和防止锁定运送楔拆除的锁定机构。
背景技术
使用具有例如SULU的一次性或可替换装载单元的手术器械进行各种手术程序。这些装载单元通常包括定位为接合手术器械的驱动构件的一个或多个可移动部件。如果在将装载单元连接到手术器械之前和连接过程中可移动部件没有恰当地保持在适当的位置上，则装载单元可能不恰当地接合手术器械，因此可能不恰当地运行。一些手术器械设有自动锁定系统，该自动锁定系统在将工具组件连接到手术器械之前阻止工具组件的部件的移动并在装载单元已恰当地定位在手术器械上时允许工具组件的可移动部件自由移动。
理想的是，为装载单元提供一种在将装载单元连接到手术器械之前防止装载单元的内部部件的移动的锁定运送装置。同样理想的是，提供一种防止在装载单元连接到手术器械之前从装载单元中手动拆除锁定运送装置以防止装载单元的部件与手术器械不对准的机构。
发明内容
本发明公开了一种装载单元和运送楔组件，包括适合于可释放地接合手术器械和运送楔的装载单元。装载单元包括工具组件和可从缩回位置移动到前进位置以致动工具组件的驱动组件。运送楔被构造为可释放地接合装载单元并包括定位为延伸进入装载单元中并接合驱动构件以将装载单元的驱动构件保持在缩回位置的横向构件。在一个实施例中，横向构件包括销，并且驱动组件包括尺寸被设计为容纳所述销的孔。
在一个实施例中，横向构件包括凸缘，并且锁定板被可滑动地支撑在装载单元内。锁定板限定包括锁定部和释放部的键孔。键孔的尺寸被设计为容纳横向构件。凸缘部的尺寸被设计为通过键孔的锁定部限制横向构件通过而通过键孔的释放部容许横向构件通过。锁定板可以从第一位置移动到第二位置，在第一位置处，键孔的锁定部与横向构件对准以防止运送楔与装载单元分离，在第二位置处，键孔的释放部与横向构件对准以容许运送楔与装载单元分离。在一个实施例中，使锁定板适合于响应装载单元和手术器械的接合而从第一位置移动到第二位置。
运送楔可以包括被构造为关于装载单元可释放地定位的至少一对挠性夹。运送楔还可以包括主体，所述主体限定至少一个盘形部以便于抓握运送楔。
在一个实施例中，装载单元包括可从第一位置移动到第二位置的凸片，并且运送楔包括锁定凸出部(locking lip)，当凸片处于其第一位置时该锁定凸出部与凸片对准以防止运送楔与装载单元分离，并且当凸片移动到第二位置时锁定凸出部与凸片不对准以容许运送楔与装载单元分离。凸片可以适于响应装载单元连接到手术器械而从第一位置移动到第二位置。
本发明公开了和手术器械的装载单元一起使用的运送楔，该运送楔包括主体部和从该主体部延伸出的细长横向构件。细长横向构件被构造并且尺寸被设计为能够与装载单元的驱动组件接合以防止驱动组件的线性移动。锁定构件可释放地与装载单元接合以防止从装载单元拆除横向构件。在一个实施例中，锁定构件包括形成在细长横向构件上的凸缘。作为选择，锁定构件可以包括从主体部突出的凸出部。凸出部可以从固定到主体部的板突出。细长横向构件还可以从板延伸出。
在一个实施例中，运送楔包括可与装载单元摩擦接合的至少一个上夹和一个下夹。
本发明还公开了一种和手术器械的装载单元一起使用的运送楔，该运送楔包括主体部和从所述主体部延伸出的细长横向构件。细长横向构件可以被定位并构造为可与装载单元的驱动组件接合。运送楔还包括锁定机构，该锁定机构用于将细长横向构件可释放地保持在装载单元内以防止从装载单元拆除横向构件。锁定机构可以包括形成在细长横向构件上的凸缘和可移动地安装在装载单元内的锁定板。
在一个实施例中，锁定板包括键孔槽，该键孔槽具有防止凸缘通过的第一部分和容许凸缘通过的第二扩大部分。作为选择，锁定机构包括从主体部突出的凸出部，该凸出部被定位为可与可移动地安装在装载单元内的凸片接合。
附图说明
这里参考附图公开当前公开的锁定运送楔的各个实施例，其中：
图1为和手术吻合器械的单一用途装载单元一起使用的锁定运送楔的一个实施例的正视立体图；
图2为图1中的锁定运送楔的后视立体图；
图2A为图1中的锁定运送楔的部件分离的立体图；
图3为和手术吻合器械一起使用的并组合了图1中的锁定运送楔的单一用途装载单元的立体图；
图4为图3中的单一用途装载单元的近侧主体部的部件分离的立体图；
图5为示出在以虚像示出锁定运送楔的一部分并且外套管被拆除的情况下锁定机构处于锁定位置的近侧主体部的近侧端的立体图；
图6为沿着图3中的线6-6截取的剖面图；
图7为沿着图3中的线7-7截取的剖面图；
图8为组合了锁定机构并处于锁定位置的锁定运送楔的立体图；
图9为沿着图8中的线9-9截取的剖面图；
图10为在将近侧主体部插入手术吻合器械(未示出)中并且锁定机构移动到解锁位置的过程中的类似于图5的立体图；
图11为以剖面表示的近侧主体部和锁定运送楔处于解锁位置的侧视图；
图12为以剖面表示的近侧主体部和锁定运送楔处于解锁位置的俯视图；
图13为组合了锁定机构并处于解锁位置的锁定运送楔的立体图；
图14为沿着图13中的线14-14截取的剖面图；
图15为示出从近侧主体部中拆除锁定运送楔的锁定运送楔和近侧主体部的剖面图；
图16为示出从单一用途装载单元中拆除锁定运送楔的单一用途装载单元和锁定运送楔的立体图；
图17为和手术吻合器械的单一用途装载单元一起使用的锁定运送楔的另一实施例的正视立体图；
图18为图17中的锁定运送楔的后视立体图；
图18A为图17中的锁定运送楔的部件分离的立体图；
图19为和手术吻合器械一起使用的并组合了图17中的锁定运送楔的单一用途装载单元的立体图；
图20为图19中的单一用途装载单元的近侧主体部的部件分离的立体图；
图21为组合了锁定机构并处于锁定位置的锁定运送楔的立体图；
图22为沿着图21中的线22-22截取的剖面图；
图23为沿着图19中的线23-23截取的剖面图；
图24为沿着图23中的线24-24截取的剖面图；
图25为处于锁定位置的锁定运送楔和近侧主体部的锁定构件致动器的立体图；
图26为在插入到手术吻合器械中之前近侧主体部的近侧端的立体图；
图27为示出在锁定构件致动器移动到解锁位置的情况下锁定运送楔和锁定构件致动器的类似于图25的立体图；
图28为在锁定构件致动器移动到解锁位置的过程中近侧主体部的近侧端的立体图；
图29为在从单一用途装载单元中拆除锁定运送楔的过程中近侧主体部和锁定运送楔的剖面图；以及
图30为示出从单一用途装载单元中拆除锁定运送楔的立体图。
具体实施方式
现在，将参考附图详细地说明包括锁定机构的当前公开的锁定运送楔的实施例，其中，在各个视图中相同标记指代相同或相应的部件。作为本领域的常识，术语“近侧”指的是较靠近用户或操作员，即外科医生或内科医生的部件或组件，而术语“远侧”指的是较远离用户的部件或组件。
参考图1和图2，公开了和手术吻合器械的装载单元一起使用的锁定运送楔或运送楔10。运送楔10被设置为防止在装载单元与手术吻合器械(未示出)组装之前装载单元的驱动组件移动。运送楔10一般包括半圆形或盘形主体部12，该半圆形或盘形主体部12具有从主体部12延伸出的横向销14。横向销14可以由各种材料形成，例如，金属材料、聚合材料等。
横向销14包括被设置为接合装载单元的驱动组件的内销部16。锁定凸缘18设置在横向销14上并形成下面详细说明的锁定机构的一部分，以防止在装载单元被固定地连接到手术吻合器械上之前从装载单元中拆除运送楔10。应当注意的是，尽管锁定凸缘18被公开为圆形，但锁定凸缘18可以采用与下面将详细说明的锁定机构的相应锁定结构相符的其他构造，例如矩形或三角形等。
一对挠性上夹20和22以及一对纵向偏置的挠性下夹24和26从主体部12延伸出并被构造为可释放地接合装载单元，以将运送楔10支撑并稳定在装载单元上。如图所示，主体部12包括上盘形部28、中心管30和环绕上盘形部28的上外周凸出部32。中心管30被设置为容纳并保持横向销14，而上外周凸出部32和上盘形部28提供抓握运送楔10的工效学装置。作为选择，可以预想其他的工效学构造。挠性上夹20和22以及挠性下夹24和26与主体部12一体地形成。上夹20、22和下夹24、26与主体部12一起可以分别由各种材料形成，例如，金属材料、聚合材料等。
参考图2A，运送楔10包括尺寸被设计为容纳横向销14的通过中心管30形成的钻孔34。具体地，横向销14包括固定地固定在中心管30的钻孔34内的外销部36。外销部36可以以任何已知方式固定在钻孔34内，例如，焊接、胶粘、销接等。作为选择，横向销14可以与运送楔10的主体部12一体地形成。销14的中间部分38在锁定凸缘18与外销部36之间延伸，并且被构造为在如下面将更加详细地说明的锁定机构的另一个部件内移动。
现在参考图3，装载单元40包括近侧主体部42和工具组件44。近侧主体部42通过位于近侧主体部42的近侧端48处的插入端头46可释放地连接到手术吻合器械(未示出)的细长主体部的远侧端上。工具组件44包括砧座组件50和钉仓组件52。钉仓组件52关于砧座组件50枢转，并且可以在打开或松开位置与闭合或接近位置之间移动。在所示的实施例中，包括砧座组件50和钉仓组件52的工具组件44关于近侧主体部42的纵轴“A-A”弯曲。作为选择，工具组件44可以包括一对线性钳口。
现在参考图4，近侧主体部42包括由模制半部54a和54b形成的内部主体54、驱动组件56和驱动锁定组件58。近侧主体部42通过固定地固定到内部主体半部54a上的安装组件60连接到工具组件44。
驱动组件56包括挠性驱动梁62，该挠性驱动梁62足够柔韧以前进通过工具组件44的弯曲部分。作为选择，如果装载单元为线性构造并包括能够铰接的工具组件，则挠性驱动梁62足够柔韧以绕铰接轴弯曲。驱动梁62具有固定到动力夹紧构件66上的远侧端64，以及近侧接合部68。接合部68的近侧端70包括完全相反向内延伸的指状部72和74，该指状部72和74接合中空的驱动构件76，以将驱动构件76固定地固定到挠性驱动梁62上。驱动构件76限定近侧孔口80，当装载单元40连接到手术器械时，该近侧孔口80容纳手术器械的控制杆(未示出)的远侧端。
动力夹紧构件66包括垂直支柱(strut)82、上梁84和下梁86。在垂直支柱82上形成刀刃或切割边缘88。当驱动组件56在工具组件44内向远侧前进时，上梁84在砧座组件50内移动，并且下梁86在钉仓组件52内移动，以使钉仓组件52从打开位置枢转到闭合位置。
装载单元40包括锁定机构90，该锁定机构90包括锁定构件92和锁定构件致动器94。锁定构件92可以从第一位置移动到第二位置，在该第一位置处，锁定构件92将驱动组件56保持在预启动(prefired)位置，在该第二位置处，驱动组件56可以自由地轴向移动。锁定构件92包括半圆柱形主体96，该半圆柱形主体96可滑动地位于装载单元40的近侧主体部42的内部主体半部54a中。主体96包括径向向内延伸的指状部98，该指状部98的尺寸被设计为容纳在形成在驱动组件56中的凹口100内。指状部98接合在驱动组件56的凹口100中防止了在装载单元40连接到手术器械上之前驱动组件56在装载单元40的近侧主体部42内线性移动。
在使用时，在将装载单元40连接到手术吻合器械上之前，弹簧102将锁定构件致动器94向近侧推进到第一位置，以将锁定构件92保持在其第一位置处，其中，在驱动组件56的凹口100中容纳锁定构件92的指状部98。当装载单元40的插入端头46被线性地插入手术吻合器械(未示出)的主体部的开口端中时，插入端头46的凸块(nub)104和106通过形成在手术吻合器械的主体部的开口端中的槽(未示出)线性移动。随着装载单元40进一步移动到所述主体部中，锁定构件致动器94从其第一位置移动到其第二位置。随着锁定构件致动器94接合手术器械的主体部并克服弹簧102的偏压移动到其第二位置，锁定构件92从与驱动组件56的凹口100接合的第一位置作凸轮运动到第二位置，以从凹口100中移出指状部98。包括锁定构件92和锁定构件致动器94的这一锁定机构防止在装载单元40与手术吻合器械接合之前装载单元40的驱动组件56前进。
装载单元40的近侧主体部42的内部主体半部54a限定纵向槽108，该纵向槽108容纳板簧110。通过关于内部主体54的半部54a和54b定位并容纳内部主体54的半部54a和54b的外套管112将板簧110限制在槽108内。将板簧110容纳在驱动组件56的阶形部分110a中，以辅助驱动组件56保持在其缩回位置处直到装载单元40已连接到手术器械并且已经启动手术器械。应当注意的是，外套管112设有用于使运送楔10的横向销14通过的孔112a。当驱动梁62向远侧前进时，板簧110向上屈曲，以容许驱动组件56的驱动梁62的远侧移动。
在2009年9月3日提交的、名称为“低位前切除装置”的、序列号为12/553,174的美国专利/专利申请中公开了装载单元的示例性范例，其全部内容以引用的方式结合到这里。
现在参考图2A和图4，如上文所述，挠性上夹20和22以及挠性下夹24和26被设置为将运送楔10保持在装载单元40(图3)上。具体地，挠性上夹20和22以及挠性下夹24和26摩擦地接合近侧主体部42的外套管112。
运送楔10被设置为将驱动组件56保持在缩回位置处，以便于将装载单元40的驱动构件76(图4)连接到手术器械的控制杆。具体地，运送楔10的内销部16被构造为被容纳在形成在驱动组件56的接合部68中的孔114(图4)中，以防止驱动组件56在装载单元40连接到手术器械上之前移动。
如上文所述，横向销14上的凸缘18形成锁定机构的一部分，该锁定机构防止在装载单元40与手术吻合器械适当接合之前运送楔10从装载单元40中拆除。
如图4和图5中最佳所示，公开的锁定机构包括锁定板116，该锁定板116可移动地支撑在溜槽(tray)118(图5)内，该溜槽118形成在内部主体半部54a和54b中。锁定板116可以自由地在溜槽118内纵向滑动并通过近侧主体部42的外套管112保持在适当位置处。为了在溜槽118内移动锁定板116，锁定板116包括可与形成在锁定构件致动器94中的凹口122接合的近侧指状部120。因此，随着锁定构件致动器94在装载单元40与手术吻合器械接合的过程中向远侧移动，在溜槽118内远侧地驱动锁定板116。
为了防止从装载单元40中拆除锁定运送楔10，锁定板116包括具有远侧延伸的纵向锁定槽126和扩大的近侧释放开口128的键孔槽124。横向销14(图2A)的中间部分38跨坐在锁定槽126内。横向销14的凸缘18的直径比锁定槽126的宽度大，防止凸缘18被拉动而通过锁定槽126。然而，键孔槽124的释放开口128的直径充分大，足以允许锁定凸缘18通过并允许从装载单元40中拆除锁定运送楔10。
现在参考图5至图9，首先参考图6、图7和图9，在初始或锁定状态下，通过形成在驱动组件56的近侧接合部分68中的孔114定位横向销14的内销部16。这样将驱动组件56固定在装载单元40的近侧主体部42内(图6和图7)。锁定构件致动器94由于弹簧102的偏压而处于近侧位置处(图5)。
参考图5、图7、图8和图9，在初始和锁定状态下，横向销14以及因此中间销部38(图7)位于锁定板116中键孔槽124的锁定槽126内。因此，锁定凸缘18被卡在锁定槽126的后面，从而防止从装载单元40中拆除运送楔10。
现在参考图10至图16，现在将说明锁定机构从近侧主体部42的脱离和从近侧主体部42中拆除运送楔10。关于图10和图12，当通过将插入端头46插入到手术吻合器械(未示出)的细长管状构件中而将近侧主体部42固定到手术吻合器械的远侧端时，细长管状构件的远侧端克服弹簧102的偏压并通过近侧主体部42向远侧驱动锁定构件致动器94(图10)。锁定构件致动器94向远侧的移动向远侧推动位于形成在内部主体54中的溜槽118内的锁定板116，并借此使得锁定凸缘18与锁定板116中的释放开口128对准(图13和图14)。
在该位置处，锁定运送楔10现在处于解锁位置并且可以从近侧主体部42中拆除，以将内销部16从驱动组件的接合部68的孔114中抽出，从而释放驱动组件56使其移动。
具体参考图14，如上所述，锁定运送楔10的主体部12包括上盘形部28和外周凸出部32，以便于从近侧主体部42中抽出运送楔10。为了进一步辅助拆除，主体部12另外包括由下外周凸出部132环绕的下盘形部130。参考图15和图16，从侧面拉动运送楔10，以使得上夹20和22以及下夹24和26分别从外套管112脱离。随着锁定运送楔10被抽出，横向销14通过外套管112中的孔112a被抽出，并且通过锁定板116中的释放开口128拆除锁定凸缘18，以借此将内销部分16从驱动组件56的近侧接合部分68中的孔114中抽出。一旦已经从装载单元40拆除运送楔10，可以启动连接到装载单元40的手术吻合器械以在组织上进行吻合程序。
图17至图18A示出了具有主体部152和从主体部152延伸出的横向构件154的运送楔150的可选实施例。向上延伸的锁定凸出部156设置在主体部152上以接合装载单元180上的组件(图18A)以形成锁定机构，防止锁定运送楔150在装载单元180与手术吻合器械完全接合之前被拆除。如图18和图18A中最佳所示，横向构件154和锁定凸出部156从支撑板158延伸出，该支撑板158通过一对保持销160和162固定到主体部152。具体参考图18A，销160和162贯通支撑板158中的孔164和166，并被构造为接合主体部152中的孔174和176。支撑板158保持在形成在装载单元180的主体部152中的凹部或溜槽178内。
类似于上述运送楔10，运送楔150还包括从主体部152延伸出的一对挠性上夹168和170以及挠性下夹172。挠性夹168、170和172被设置为以类似于上述方式的方式将锁定运送楔150支撑并保持在装载单元180上。
现在参考图19，装载单元180与上述装载单元40基本相同。装载单元180一般包括近侧主体部182和工具组件184。近侧主体部182通过形成在主体部182的近侧端188处的插入端头186能够可释放地连接到手术吻合器械(未示出)的细长主体部的远侧端。工具组件184包括砧座组件190和钉仓组件192。钉仓组件192关于砧座组件190枢转，并且可以在打开或松开位置与闭合或接近位置之间移动。包括砧座组件190和钉仓组件192的工具组件184关于近侧主体部的纵轴“B-B”弯曲。如上所述，工具组件184还可以包括线性钳口。
现在参考图20，近侧主体部182包括由模制半部194a和194b形成的内部主体194、驱动组件196和驱动锁定组件198。近侧主体部182通过安装组件200结合到工具组件184。安装组件200固定地固定到内部主体半部194a上。
驱动组件196包括挠性驱动梁202，该驱动梁202足够柔韧以前进通过工具组件184的弯曲部分。驱动梁202具有固定到动力夹紧构件206的远侧端204以及近侧接合部208。接合部208的近侧端210包括完全相反向内延伸的指状部212和214。指状部212和214接合中空的驱动构件216，以将驱动构件216固定地固定到挠性驱动梁202的近侧端218上。驱动构件216限定近侧孔口220，当装载单元180连接到手术器械时，该近侧孔口220容纳手术器械的控制杆的远侧端。
动力夹紧构件206包括垂直支柱224、上梁226和下梁228。在垂直支柱上形成刀刃或切割边缘230。当驱动组件196在工具组件184内向远侧前进时，上梁226在砧座组件190内移动，并且下梁228沿着钉仓组件192移动，以使钉仓组件从打开位置枢转到闭合位置。
装载单元180包括锁定机构232，该锁定机构232包括锁定构件234和锁定构件致动器236。如关于锁定构件92和锁定构件致动器94的上述讨论，锁定构件234可从第一位置移动到第二位置，在所述第一位置处，锁定构件234将驱动组件196保持在预启动位置，在所述第二位置处，驱动组件196可以自由地轴向移动。锁定构件234包括可滑动地位于主体部194的内部主体半部194a中的半圆柱形主体238。主体238包括径向向内延伸的指状部240，该指状部240的尺寸被设计为容纳在形成在驱动组件196中的凹口242内。指状部240接合在驱动组件196的凹口242中防止驱动组件196在主体部194内线性移动，以防止在装载单元180连接到手术吻合器械上之前启动装载单元180。
弹簧244被设置为将致动器236推进到第一位置，以将锁定构件234保持在如上讨论的第一位置处。近侧主体部182实质上如上面关于装载单元40的描述起作用，以使得随着近侧主体部182移动到手术吻合器械的主体部中，锁定构件致动器236从其第一位置移动到其第二位置。
近侧主体部182的上半部194a限定了容纳板簧248的纵向槽246。板簧248由外套管250限制在槽246内。当驱动梁202在向远侧前进时，板簧248向上屈曲以允许驱动梁202的远侧移动。
如上所述，运送楔150被构造为接合近侧主体部182。具体地，夹168、170和172被构造为摩擦地接合外套管250。为了防止驱动组件196移动，近侧接合部分208包括用于容纳运送楔150的横向构件154的槽252。
为了将锁定运送楔150保持在近侧主体部182上以及从近侧主体部182上释放锁定运送楔150，锁定构件致动器236设有向下突出的凸片254，该凸片254被构造为在运送楔150上接合向上突出的凸出部156。应当注意的是，孔256被设置为通过外套管250，以允许横向构件154通过进入近侧主体部182中。
现在参考图21、图22和图25，在初始位置处，运送楔150的锁定凸出部156与形成在锁定构件致动器236上的凸片254完全接合，以防止从近侧主体部182中拆除锁定运送楔150。参考图22，锁定运送楔150，尤其是主体部152可以设有一对指形凹部258和260，以便于抓握锁定运送楔150。
如图23和图24中最佳所示，锁定运送楔150的横向构件154被完全插入通过驱动组件196的近侧接合部分208形成的槽252内。这防止驱动组件196在装载单元150的近侧主体部182内的任何移动(图20)。
现在参考图26，在初始位置处，锁定构件致动器236由于弹簧294的偏压而处于近侧主体部182的最近侧位置处。在装载单元180组装到手术吻合器械上时，插入端头186被插入到与手术吻合器械相关联的细长构件中，以使得克服弹簧294的偏压向远侧驱动锁定构件致动器236(图28)。
如图27中最佳所示，随着向远侧驱动锁定构件致动器236，驱动凸片254与锁定运送楔150上的凸出部156脱离。之后，参考图29，可以拉动运送楔150远离近侧主体部182，以将横向构件154从驱动组件196的近侧接合部分208中的槽252中抽出，因而从运送楔150中释放驱动组件196。如图30所示，为了使运送楔150与装载单元180分离，横向构件154通过形成在外套管250中的孔256被抽出，并且夹168、170和172与外套管250分离。
应当理解的是，可以对这里公开的实施例进行各种变型。例如，公开的横向构件可以具有例如矩形、三角形等其他构造。此外，如上所述，公开的锁定运送楔的各个部件可以一体地形成，或者可以单独形成并通过例如焊接、胶粘等已知方法连结到一起。还预想到，这里公开的锁定运送楔适合用于例如以引用的方式全部组合于此的美国专利号7,097,089、7,143,924和美国公开号2005/0184123中公开的其他锁定机构。因此，上面的说明不应当理解为限制，而仅作为特别实施例的示例。本领域的技术人员将在随附于此的权利要求的范围和精神范围内预想其他变型例。
Claims (8)
1.一种装载单元，包括：
主体部，其适合于可释放地固定到手术器械；
工具组件，其结合到所述主体部；
驱动组件，其能够从缩回位置移动到前进位置以致动所述工具组件；
锁定楔，其可移除地支撑在所述主体部上以防止所述驱动组件移动到所述前进位置；以及
锁定组件，其能够从与所述锁定楔接合以防止所述锁定楔从所述主体部移除的第一位置移动到便于所述锁定楔从所述主体部移除的第二位置，其中响应所述主体部到所述手术器械的固定而发生所述锁定组件从所述第一位置移动到所述第二位置。
2.根据权利要求1所述的装载单元，其中，所述锁定组件包括锁定构件和锁定构件致动器。
3.根据权利要求2所述的装载单元，其中所述锁定构件致动器包括凸片并且所述锁定楔包括锁定凸出部，其中，当所述锁定组件处于所述第一位置以防止所述锁定楔从所述主体部移除时，所述凸片与所述锁定凸出部对准，而当所述锁定组件移动到所述第二位置以便于所述锁定楔从所述主体部移除时，所述凸片与所述锁定凸出部不对准。
4.根据权利要求2所述的装载单元，还包括可滑动地支撑在装载单元内的锁定板，所述锁定板限定包括锁定部和释放部的键孔，所述键孔的尺寸被设计为容纳横向构件，所述横向构件具有凸缘部，所述凸缘部的尺寸被设计为限制横向构件通过所述键孔的锁定部而容许横向构件通过所述键孔的释放部，其中，所述锁定板能够从第一位置移动到第二位置，在所述第一位置处，所述键孔的锁定部与所述横向构件对准以防止锁定楔与装载单元分离，在所述第二位置处，所述键孔的释放部与所述横向构件对准以容许所述锁定楔与所述装载单元分离。
5.根据权利要求4所述的装载单元，其中，所述锁定板适合于响应所述装载单元与所述手术器械的接合而从所述第一位置移动到所述第二位置。
6.根据权利要求4所述的装载单元，其中，所述锁定板包括指状部，并且所述锁定构件致动器限定了用于接合所述指状部的凹口。
7.根据权利要求1所述的装载单元，其中，所述工具组件包括砧座组件和钉仓组件。
8.根据权利要求1所述的装载单元，还包括手术吻合钉仓。
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| CN201010526377.2A Active CN102048568B (zh) | 2009-10-30 | 2010-10-27 | 锁定运送楔 |
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| Country | Link |
|---|---|
| US (4) | US8225979B2 (zh) |
| EP (1) | EP2316349B1 (zh) |
| JP (3) | JP5854589B2 (zh) |
| CN (2) | CN102048568B (zh) |
| AU (1) | AU2010224376B2 (zh) |
| CA (1) | CA2719580C (zh) |
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| JP5854589B2 (ja) | 2016-02-09 |
| CN102048568B (zh) | 2014-08-13 |
| JP2015024164A (ja) | 2015-02-05 |
| AU2010224376A1 (en) | 2011-05-19 |
| AU2010224376B2 (en) | 2014-05-29 |
| US20110101066A1 (en) | 2011-05-05 |
| CA2719580A1 (en) | 2011-04-30 |
| CN104146739A (zh) | 2014-11-19 |
| US9801629B2 (en) | 2017-10-31 |
| US8225979B2 (en) | 2012-07-24 |
| US20130231643A1 (en) | 2013-09-05 |
| US20170035420A1 (en) | 2017-02-09 |
| CA2719580C (en) | 2018-11-27 |
| JP2011092707A (ja) | 2011-05-12 |
| US8418906B2 (en) | 2013-04-16 |
| EP2316349A1 (en) | 2011-05-04 |
| US20120267418A1 (en) | 2012-10-25 |
| JP2016152989A (ja) | 2016-08-25 |
| EP2316349B1 (en) | 2019-08-21 |
| US9474578B2 (en) | 2016-10-25 |
| CN102048568A (zh) | 2011-05-11 |
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