CN102186425B - 具有用于提供砧座位置反馈的设备的外科缝合器械 - Google Patents

具有用于提供砧座位置反馈的设备的外科缝合器械 Download PDF

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CN102186425B
CN102186425B CN200980141155.4A CN200980141155A CN102186425B CN 102186425 B CN102186425 B CN 102186425B CN 200980141155 A CN200980141155 A CN 200980141155A CN 102186425 B CN102186425 B CN 102186425B
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anvil block
indicator
assembly
trocar
trocar assembly
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CN102186425A (zh
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J·P·米萨莫
F·E·谢尔顿四世
C·O·巴克斯特三世
R·P·富克斯
N·G·莫利托
B·汤普森
M·聪顿
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Ethicon Endo Surgery Inc
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/1114Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115Staplers for performing anastomosis in a single operation
    • A61B17/1155Circular staplers comprising a plurality of staples
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017Electrical control of surgical instruments
    • A61B2017/00115Electrical control of surgical instruments with audible or visual output
    • A61B2017/00128Electrical control of surgical instruments with audible or visual output related to intensity or progress of surgical action
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical 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
    • A61B2017/07214Stapler heads
    • A61B2017/07257Stapler heads characterised by its anvil
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, 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
    • A61B90/08Accessories or related features not otherwise provided for
    • A61B2090/0807Indication means
    • A61B2090/0811Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument

Abstract

本发明公开了用于切割组织并向组织施加一个或多个外科缝钉的圆形缝合器械。所述器械包括各种形式反馈系统,所述反馈系统被设计为在砧座已经附接到装置和/或在砧座已经附接到装置并定位于击发位置时,向外科医生提供至少一种模式的反馈。本发明公开了各种类型的反馈指示器,如照明装置、发声装置和振动发生装置。在各种实施例中,反馈指示器包括安装在砧座上的至少一个照明装置,所述照明装置指示砧座已经正确地附接到器械,并且还可用于对外科部位进行照明。

Description

具有用于提供砧座位置反馈的设备的外科缝合器械
技术领域
本发明整体涉及外科缝合器,更具体地讲,涉及用于执行吻合术缝合操作的圆形缝合器械。
背景技术
在某些类型的外科中,使用外科缝钉已成为连接组织的优选方法,因此已开发了用于这类用途的具有特殊构造的外科缝合器。例如,已经开发了用于被称为吻合术的外科的腔内或圆形缝合器。可用于执行吻合术的圆形缝合器公开于例如美国专利No.5,104,025、No.5,205,459、No.5,285,945和No.5,309,927中,其各自以引用方式全文并入本文。
一种类型的吻合术包括先切除患病部分然后将肠的各个段连接到一起的外科。该手术需要将两个管状部分的末端重新连接到一起,以形成连续的管状通道。以前,这类外科既费时又费力。外科医生必须准确切割和对齐肠的两端,并且要在保持对齐状态的同时通过多次缝合将两端连起来。圆形缝合器的开发大大简化了吻合术的工序,并且也缩短了执行吻合术所需要的时间。
通常,常规圆形缝合器通常由具有近端致动机构的细长轴和安装在该轴上的远端缝合机构组成。远端缝合机构通常包括固定的钉仓,钉仓内含有构造成同心圆阵列的多个缝钉。圆形切刀同心安装在钉仓内缝钉以里的位置处以便在其中轴向移动。从钉仓中心轴向延伸的是活动的套管针轴,该套管针轴适于缝钉砧座可拆卸地连接到其上。当把缝钉驱入其中时砧座能够使缝钉的末端成形。钉仓远端表面与缝钉砧座之间的距离由调节机构控制,调节机构安装在缝合器轴近端,用来控制套管针的轴向移动。当外科医生启动致动机构时,对夹在钉仓和缝钉砧座之间的组织同时进行缝合和切割。
使用圆形缝合器执行吻合术时,通常采用常规的外科缝合器缝合肠,这种缝合器在待移除肠的患病部分两侧安置两排缝钉。在缝合相邻末端的同时切除目标段。移除患病部分后,外科医生通常将砧座插入腔管近端,即缝合线近端。这可通过将砧座头部插入外科医生在近腔管切开的入口来完成。有时,可经肛门放置砧座,即通过将砧座头部放在缝合器的远端并通过直肠插入器械。然后外科医生可用缝线或其他常规的系结装置将肠的近端系在砧座轴上。接着,外科医生切除系结处附近多余的组织,并且外科医生将砧座附接到缝合器的套管针轴上。然后外科医生合拢砧座和钉仓之间的间隙,从而将肠的近端和远端夹紧在间隙中。外科医生随后启动缝合器,驱动若干排缝钉穿过肠的两端并使其成形,从而连接末端并形成管状通道。同时,在驱动并成形缝钉时,可驱动同心的圆形刀片穿过肠组织末端,从而切割邻近内排缝钉的末端。接着,外科医生从肠中取出缝合器,并完成吻合术。
在上述缝合处理过程中,外科医生常常难以有效地观察正被切割和缝合的结肠区域。为了帮助外科医生,采用配备有相机和照明系统的单独的内窥镜。然而,由于在结肠内操纵和定位此类器械可用的空间有限,因此此类器械可能无法为所述区域提供所需量的照明。因此,需要一种配备有照明源的圆形缝合器。
在上述外科过程中,需要在闭合和击发之前为外科医生提供关于砧座被正确附接到装置的反馈。例如,在低前位切除术中,外科医生常常难以知道其是否成功地将砧座附接到套管针。如果在将砧座固定到装置之前击发缝合器,则可能产生不利的结果。因此,还需要一种在砧座已经被正确附接到装置时进行指示的装置。
另外,在上述外科过程中,外科医生常常难以知道砧座何时已移动到所需的闭合位置(此时其准备好击发)。因此,需要一种用于圆形缝合器的反馈结构,其为外科医生提供关于砧座已经移动到所需的击发位置的指示。
上述讨论仅仅为了举例说明技术领域内目前存在的一些不足,而不应看作是对权利要求范围的否定。
发明内容
本发明提供一种用于向组织施加一个或多个外科缝钉的外科缝合器械,从而克服了现有技术存在的上述和其他缺陷。各种实施例包括手柄组件和轴组件,所述轴组件连接到所述手柄组件并将套管针组件可移动地支撑于其中。所述外科缝合器械还可包括缝合头部组件,所述缝合头部组件可操作地连接到所述轴组件。所述缝合头部组件可包括用于支撑一个或多个外科缝钉的钉仓以及用于接合和驱动来自钉仓的缝钉的缝钉驱动器组件。刀可以可移动地支撑在所述缝合头部组件内。可设置驱动系统以向所述缝钉驱动器组件施加驱动运动。砧座可以可拆卸地附接到所述套管针组件的远端,并且指示器系统可以可操作地与所述套管针组件相连,以在所述砧座附接到所述套管针组件的远端时提供指示信号。
在本发明的另一个一般方面,提供一种用于向组织施加一个或多个外科缝钉的外科缝合器械。各种实施例包括手柄组件和轴组件,所述轴组件连接到所述手柄组件并将套管针组件可移动地支撑于其中。缝合头部组件可操作地连接到所述轴组件。所述缝合头部组件可包括用于支撑一个或多个外科缝钉的钉仓以及用于接合和驱动来自钉仓的缝钉的缝钉驱动器。刀也可以可移动地支撑在所述缝合头部组件内。所述外科缝合器械还可包括用于向缝钉驱动器组件和刀施加驱动运动的驱动系统。砧座可以可拆卸地附接到所述套管针组件的远端。照明装置可附接到所述砧座。所述照明装置可电连接到电流源。传感器可设置在所述砧座和所述套管针组件之一上并电连接到所述电流源和所述照明装置,使得当所述砧座附接到所述套管针组件的远端部分时,电流从所述电流源流向所述照明装置。
根据本发明的另一个一般形式,提供了一种用于向组织施加一个或多个外科缝钉的外科缝合器械。各种实施例包括手柄组件和连接到该手柄组件的轴组件。缝合头部组件可以可操作地连接到轴组件。所述缝合头部组件可包括用于支撑一个或多个外科缝钉的钉仓以及用于接合和驱动来自钉仓的缝钉的缝钉驱动器。刀可以可移动地支撑在所述缝合头部组件内。可设置驱动系统来向所述缝钉驱动器和刀施加驱动运动。所述器械还可包括电流源。指示器也可设置在所述器械上。所述指示器可与所述电流源相连。套管针组件可由所述轴组件可移动地支撑并能够可分离地将砧座支撑于其上。所述套管针组件可具有与所述电流源和所述指示器相连的多个接触区域。所述接触区域中的至少一些可相对于第一接触区域电绝缘,使得当所述砧座附接到所述套管针组件的远端时,所述砧座将所述第一和第二接触区域电连接以允许电流流向所述指示器。
附图说明
并入本文中并且构成本说明书一部分的附图示出了本发明的实施例,并且与上面所给出的概述和下面所给出的具体实施方式一起用于解释本发明的原理。
图1是可结合本发明的各种实施例采用的外科缝合器的透视图;
图2是图1所示外科缝合器的缝合头部组件的分解组装图;
图3是图1的外科缝合器的轴和缝合头部组件的横截面图,其中砧座被连接到套管针;
图4是本发明的各种实施例的控制电路的示意图;
图5是示出处于打开位置的图1-3的缝合器的局部横截面图,该缝合器在肠的一部分已被切除之后插入肠中;
图6是图5的缝合器的另一局部横截面图,其中肠的远端和近端被缝在砧座轴周围;
图7是图5和图6的缝合器的另一局部横截面图,其中砧座相对于缝合头部组件被拉到击发位置;
图8是击发之后图5-7的缝合器的另一局部横截面图;
图9是本发明的另一外科缝合器实施例的轴和缝合头部组件的横截面图,其中砧座被连接到套管针;
图10是本发明实施例的套管针的一部分的透视图;
图11是被接纳在图10的套管针的远端部分上的砧座的一部分的局部横截面图;
图12是本发明的其他实施例的控制电路的示意图;
图13是本发明的其他实施例的另一控制电路结构的示意图;
图14是本发明的其他实施例的另一控制电路结构的示意图;以及
图15是本发明的其他实施例的另一控制电路的示意图。
具体实施方式
现在描述某些示例性实施例,以得到对本文所公开的装置和方法的结构、功能、制造和使用的原理的全面理解。这些实施例的一个或多个实例在附图中示出。本领域的普通技术人员将会理解,本文特别描述和在附图中示出的器械和方法为非限制性的示例性实施例,并且本发明多个实施例的范围仅由权利要求书限定。结合一个示例性实施例示出或描述的特征可以与其他实施例的特征组合。这些修改形式和变型形式旨在包含于本发明的范围内。
转向附图(其中类似的标号代表类似的部件),这里示出了圆形缝合器10,该缝合器包括独特和新颖的系统来为外科医生提供反馈,以指示其可拆卸的砧座100何时被正确地附接到缝合器10。多种不同的圆形缝合器是本领域所已知的。图1-8示出了可利用本发明各方面的有益效果的示例性圆形缝合器结构。然而,可想到的是,在不脱离本发明的精神和范围的情况下,本发明的各种实施例可成功地用于其他缝合器构造。
应当理解,本文使用的术语“近端”和“远端”是相对于操纵外科器械的手柄部分的临床医生而言的。术语“近端”是指最靠近临床医生的部分,术语“远端”则是指远离临床医生的部分。还应当理解,为简洁和清楚起见,本文可以结合附图使用诸如“垂直”、“水平”、“上”和“下”之类的空间术语。然而,外科器械能够在许多方向和位置使用,并且这些术语并非限制性和/或绝对化的。
可从图1看出,本发明公开了一种圆形缝合器10,其包括缝合头部组件12、砧座100、调节旋钮30和触发器14。缝合头部组件12通过轴组件50连接到手柄组件40。触发器14被手柄组件40可枢转地支撑,并被构造用于在安全机构16被释放时操作缝合器10。当触发器14被启动时,驱动系统在轴组件50内操作,以使得缝钉90(图2)从缝合头部组件12弹出以与砧座100接触。同时,可操作地支撑在头部12内的刀70对固定在缝合的组织周围靠里的组织进行切割。然后将缝合器10从组织中拔出,将被缝合的组织保持在原位。
图2示出可结合本主题发明的各种实施例采用的砧座100和缝合头部组件12的一种形式。可从该图中看出,砧座100可具有圆形主体部分102,该圆形主体部分具有用于将套管针60(图3)附接到其上的砧座轴104。砧座主体102上具有缝钉成形下表面106。在各种实施例中,护罩120附接到砧座主体102的远端。砧座100还可设置有一对套管针保持夹片或叶片式弹簧110,其用于以可脱开的方式使套管针60与砧座轴104保持接合,如将在下面进一步详细说明的。
从图2还可看出,缝合头部组件12可包括壳体构件20,该壳体构件用来支撑缝钉驱动器22形式的钉仓支撑组件,缝钉驱动器22适于与圆形钉仓24接合并驱动支撑在其中的缝钉90使其接触砧座100的缝钉成形下表面106。圆形刀70居中设置在缝钉驱动器22内,并在其上形成有远端刀刃72。壳体构件20的近端21可通过远端套圈构件52连接到轴组件50的管状外护罩51上。
图3示出轴组件50,该轴组件可操作地支撑套管针60和压缩轴54以使该套管针和压缩轴能在其中轴向移动。压缩轴54可沿轴向可移动地支撑在管状外护罩51内,并包括远端压缩轴部分55。从图3还可看出,远端压缩轴部分55连接到缝钉驱动器22。因此,压缩轴部分55在管状外护罩51内的轴向移动会使得缝钉驱动器22在壳体构件20内轴向移动。击发触发器14(图1)的致动将使得压缩轴54和远端压缩轴部分55朝远端方向(箭头“DD”)移动,从而将缝钉驱动器22朝远端驱动,以击发缝钉90使其与砧座100的缝钉成形下表面106接触。当缝钉驱动器22被朝远端驱动时,其还驱动刀70的刀刃72穿过固定在缝合的组织周围靠里的组织进入安装在砧座100中的刀板210中。
套管针60可包括套管针顶端62,该套管针顶端附接到顶部张力带56和底部张力带58。套管针顶端62可通过紧固件59(例如,螺钉、双头螺栓、柱等)连接到顶部张力带56和底部张力带58。间隔带61被接纳在管状护罩51内,用于可滑动地将上下张力带56、58支撑在护罩51内。顶部张力带56和底部张力带58的近端可附接到调节轴80的远端。如图3所示,套管针60的顶端62可插入到砧座100的砧座轴104中,并通过套管针保持夹片110保持接合。
在各种实施例中,调节轴80可以轴向可移动地支撑在手柄组件40内,该手柄组件的类型和构造为Todd Philip Omaits等人的美国专利公布No.US-2008-0078806-A1(提交于2006年9月29日,为本申请的受让人所有,其以引用方式全文并入本文)中所公开的那种。然而,在不脱离本发明的精神和范围的情况下,也可以采用其他手柄结构和击发系统结构。
本发明的各种实施例包括独特和新颖的砧座反馈系统(除了别的以外,通常以200指代),该反馈系统为外科医生提供关于砧座100已经正确地连接到套管针60的指示。组织反馈系统200的一个实施例可包括至少一个指示器130,所述指示器可安装到护罩120的远端。在各种实施例中,例如,指示器130可包括至少一个照明装置,例如至少一个发光二极管(LED)或其他发光装置。从图2和图4可以看出,指示器130可通过导线或导体133连接到直流(“DC”)电源240,该DC电源可包括一个或多个电池242或者其他合适的DC电源。电池242还可被支撑在护罩120内,使得其可容易地安装和更换。指示器130还可通过第一导线或导体132连接到传感器140,该传感器安装在砧座100的轴104中。传感器140还可通过另一导体或导线134连接到电源240。
在各种实施例中,传感器140可包括开关141,该开关在其未致动位置为常开,使得在开关141闭合之前,没有电流流向照明装置灯130。开关141如此设置在砧座100的轴104内或上,使得当套管针顶端62正确地附连至轴104上(即,如图3所示安置在轴104内并通过保持夹片110保持在这样的位置)时,开关141闭合,从而允许电流从电池242流向指示器130。在不脱离本发明的精神和范围的情况下,开关141可包括多种不同的开关结构。例如,开关141可包括机械致动开关(即,利用与套管针顶端62的接触来机械闭合的开关)。然而,开关141还可以是磁力开关等,此开关当套管针顶端62被安置在砧座100的轴104内其正确连接的位置处时被致动。
本领域普通技术人员将会知道,砧座反馈系统200为外科医生提供关于砧座100已经正确地连接到套管针60的指示。尽管仅示出了一个指示器130安装在护罩120上,但是应当理解的是,在砧座主体120上可采用不止一个指示器并以其他方位支撑。在其他实施例中,可由砧座支撑照明装置形式的一个指示器130,以对外科部位进行照明,同时提供关于砧座已经正确地附接的指示,而在手柄组件或轴上支撑另一指示器(未示出)以为外科医生提供关于砧座已经正确地附连到套管针60的指示,而无需特别查看砧座或外科部位。这样的安装到手柄组件的指示器可包括例如照明装置、发声装置、振动发生装置等。
现在将参照图5-8描述使用圆形缝合器10的另一示例性方法。当利用圆形缝合器10执行吻合术时,可以利用常规外科缝合器来缝合肠300,这种缝合器在肠300的目标段(即,标本)两侧安置多排缝钉。图5示出了内衬缝合线310、320。通常在缝合的同时切割目标段。在图5中目标段已经被切除。在移除目标标本之后,外科医生将砧座100插入肠300的近端部分302,即缝合线310的近端。这可通过将砧座头部100插入近端肠部分302中所切开的入口来完成,或者可经肛门放置砧座100,即通过将砧座100放在缝合器10的远端并通过直肠插入器械。接着,外科医生可将砧座100附接到缝合器100的套管针顶端62。一旦套管针顶端62已被插入到砧座轴104中的这样的位置,使得砧座轴104的近端105被安置在套管针60的肩部66上并且保持夹片110与套管针顶端62保持接合,开关140就闭合,以允许电流从电池242流向指示器130。外科医生可利用摄像机(未示出)来观察指示器130被点亮,该摄像机通过内窥镜(未示出)支撑以允许外科医生查看外科部位(或者,如果另一指示器设置在手柄组件或轴组件上,则外科医生可从该装置接收关于砧座已经正确地附接到套管针60的指示)。本领域普通技术人员将会知道,当指示器130包括附接到砧座100的至少一个照明装置时,指示器130能够提供关于砧座100已经正确地附接到套管针60的指示,同时对外科部位进行照明。
一旦砧座100已经正确地连接到套管针顶端62,砧座100就被插入肠300的远端部分306。然后,外科医生可利用缝线312或其他常规的系结装置将肠300的近端段302的远端304系在砧座轴104上并且还利用另一缝线314将远端肠部分306的近端308系在砧座轴周围。参见图6。然后,外科医生开始旋转闭合旋钮组件30(图1)以将砧座100拉向支撑在缝钉驱动器22中的钉仓24,从而闭合砧座100和钉仓24之间的间隙,并由此在两者间的间隙“G”中将远端肠部分306的近端308与近端肠部分302的远端304接合。参见图7。外科医生继续旋转封闭旋钮组件30,直到获得所需的间隙G。当处于该“击发”位置时,那么外科医生可将安全轭16枢转至关闭位置,并通过拉压击发触发器14来击发缝合器10。拉压触发器14会使得压缩轴54将缝钉驱动器22朝远端驱动,从而将待驱动的缝钉90驱动穿过肠300的两端304、308,由此将部分302和306连在一起并形成管状通道。同时,在驱动并成形缝钉908时,可驱动刀70穿过肠组织末端304和308,从而切割邻近内排缝钉90的末端。参见图8。
图9-11示出了另一圆形缝合器10’,其可采用本发明的某些独特和新颖的结构。缝合器10’的与上述部件相同的那些部件将用类似标号指代。在一个实施例中,例如,砧座100不含先前实施例中的指示器130。然而,在此实施例中,套管针400形成有两个或更多个接触区域410和434,这些接触区域通过电绝缘体420彼此电隔离。更具体地讲,参照图10和图11,套管针400包括主体部分402,该主体部分以上述方式通过紧固件59连接到顶部张力带56和底部张力带58。主体部分402具有远端部分404,该远端部分以顶端406封端并形成有第一接触区域或肩部410。套管针400的主体402由导电材料加工而成,例如不锈钢、钛、铝等。套管针400的远端部分404上接纳有电绝缘体套筒420,该电绝缘体套筒可由例如热塑性材料加工而成,如Vectra、高密度聚乙烯(HDPE)、Ultem等。电绝缘体420上安装有接触轴衬430。接触轴衬430由导电材料加工而成,例如不锈钢、钛、铝等。接触轴衬430上形成有远端肩部432,该远端肩部限定用于与中空砧座轴104的近端部分105接合的第二接触表面434。
第一导体或导线450连接到接触轴衬430。在各种实施例中,接触轴衬430可具有狭槽或凹槽438,其尺寸适于接纳可焊接和/或用胶水粘合或换句话讲电连接到其的导体450的末端。第二导体或导线460可能通过紧固件59中的一个或二个附接到主体部分402,所述紧固件还用于将顶部和底部张力带56、58连接到主体部分。然而,第二导体450可通过其他合适的方法电连接到套管针400的主体部分402。
图12示出可采用的指示器电路405的一种形式。可从该图中看出,直流(“DC”)电源240连接到接触轴衬430,所述DC电源可包括一个或多个电池242或者其他合适的DC电源,所述接触轴衬安装在套管针主体402上所安装的电绝缘体420上,如图10和图11所示。第二导体460连接到导电套管针主体402以及安装在手柄组件40上的指示器470。指示器470继而通过导体462连接到电源240。指示器470可包括至少一个发光二极管(“LED”)或其他合适的光源。因此,当砧座100的轴104被正确地接纳在远端部分404上,使得轴104的近端104被安置在第二接触区域434上时,轴104也与第一接触区域410接触,从而接通电路405,使得指示器470通电。参见图11。这样的结构为外科医生提供关于砧座100已经正确地附接到套管针400的明确指示。图13示出替代形式的指示器电路405′,其采用微处理器480,该微处理器可容纳于手柄组件40内,用于在砧座100已经附接到套管针400从而接通电路时控制指示器470。
如上所述,一旦砧座100已经正确地连接到套管针400,砧座100就被插入肠300的远端部分306中。然后,外科医生可利用缝线312或其他常规的系结装置将肠300的近端段302的远端304系在砧座轴104上并且还利用另一缝线314将远端肠部分306的近端308系在砧座轴周围。然后,外科医生开始旋转闭合旋钮组件30(图1)以将砧座100拉向支撑在缝钉驱动器22中的钉仓24,从而闭合砧座100和钉仓24之间的间隙,并由此在两者间的间隙“G”中将远端肠部分306的近端308与近端肠部分302的远端304接合。外科医生继续旋转封闭旋钮组件30,直到获得所需的间隙G。为了帮助外科医生确定砧座100何时相对于钉仓24移动到所需击发位置,各种实施例还可设置有闭合电路500。
更具体地讲,参照图14,闭合电路500可包括如上所述的电源240、套管针400的主体部分402上的第一接触区域410和形成在接触轴衬430上的第二接触区域434、以及用于控制可变电阻器的弦丝电位计510或其他距离传感器。弦丝电位计510被构造并安装在轴50或手柄组件40内,并且连接到套管针400或调节轴80,以检测套管针400从起始位置(在该起始位置砧座100已正确地连接到该套管针)朝近端“PD”方向移动的轴向距离。当采用此结构时,套管针400可以上述方式(利用控制旋钮30的旋转)定位在砧座100可附接到该套管针的起始位置。弦丝电位计510被设定为使得当在起始位置处砧座100已经正确地连接到套管针400时电阻低。因此,当砧座100已经附接到套管针400时,电阻低,并且指示器470通电以向外科医生提供关于砧座100已经正确附接的指示。当外科医生随后旋转调节旋钮30以将砧座100朝近端拉向钉仓24时,弦丝电位计510中的电阻增大,减少了流向指示器270的电流量,从而使指示器270变暗,直到砧座到达所需的击发位置(即,实现所需的间隙“G”)。此时,电阻增大到很少或没有电流流向指示器灯270的水平从而使其熄灭。因此,外科医生可在闭合处理过程中观察指示器270,并且当灯熄灭时,外科医生知道砧座100已经被定位在所需的击发位置。
尽管此实施例采用了弦丝电位计来随着套管针400和砧座100的调节而调节闭合电路500中的电阻,但是可采用其他电路结构。例如,可采用通过套管针400所移动的轴向距离来控制的基于晶体管的放大器,如达灵顿对(Darlington pair)。在其他实施例中,可采用包括微处理器580的电路500’,该微处理器用于在砧座100轴向前进到所需的闭合位置时控制指示器270的照明。参见图15。
本发明的各种实施例相比于已有的圆形缝合结构表现出巨大的改进,所述现有的圆形缝合结构无法提供任何手段来指示指示砧座何时正确地附接到套管针和/或还提供关于砧座何时相对于钉仓定位在准备好击发的方位的指示。虽然已经描述了本发明的若干实施例,但应当知道,掌握了本发明的一些或全部优点的本领域的技术人员可能会想到这些实施例的各种修改、变型和变通形式。例如,按照多个实施例,单个部件可以替换为多个部件,并且多个部件也可以替换为单个部件,以执行给定的一种或多种功能。因此,在不脱离所附权利要求书限定的已公开发明的范围和精神的情况下,本专利申请旨在涵盖所有这类修改、变型和变通形式。
本文所公开的装置可设计成单次使用后丢弃,也可以设计成多次使用。然而,在任一种情况下,该装置在至少使用一次后都可被修复以重复利用。修理可包括如下步骤的组合:拆卸该装置、然后清洗或置换某些部分以及随后组装。具体来讲,该装置可以拆卸,并且可以任意组合选择性地置换或移除任意数目的某些部分或零件。清洗和/或替换特定部件时,可在再处理设施处或在即将进行外科操作前由外科小组再装配装置,以供后续使用。本领域的普通技术人员将会知道,修理装置时可以采用多种不同技术来拆卸、清洗/更换和组装。此类技术的使用以及所得再处理后的装置均在本发明的范围内。
优选的是,本文所述的发明将在外科前进行处理。首先,获取新的或用过的器械,并根据需要进行清洗。然后可对器械进行消毒。在一种消毒技术中,将器械置于闭合并密封的容器中,例如塑料或TYVEK口袋中。然后将容器和器械置于可穿透该容器的辐射场,例如γ辐射、X射线或更高能量的电子辐射。辐射将杀死器械上和容器中的细菌。然后可将消毒后的器械保存在消毒容器中。该密封容器在医疗设施中被打开之前使器械保持在无菌状态。
以引用方式全文或部分地并入本文的任何专利公布、或其他公开材料仅在所并入的材料不与本发明所述的现有定义、陈述、或其他公开材料相冲突的程度上并入本文。因此,并且在必要的程度上,本文明确说明的公开内容取代以引用方式并入本文的任何冲突材料。也就是说,如果任何材料、或其部分以引用方式并入本文,但与本文所述的现有定义、陈述、或其他公开材料相冲突,那么,仅在所并入的材料与现有公开材料之间不产生冲突的程度上才将其并入本文。
旨在受到保护的本发明不应被理解为受所公开的具体实施例的限制。因此应将这些实施例看作是示例性而非限制性的。在不脱离本发明精神的情况下,其他人可以进行更改和修改。因此,需要明确指出的是,本发明应涵盖落入权利要求书所限定的本发明的精神和范围内的所有这些等同形式、变型形式和修改。

Claims (9)

1.一种用于将一个或多个外科缝钉施加到组织的外科缝合器械,包括:
手柄组件;
轴组件,所述轴组件连接到所述手柄组件并将套管针组件可移动地支撑于其中;
缝合头部组件,所述缝合头部组件可操作地连接到所述轴组件,所述缝合头部组件包括:
钉仓,所述钉仓用于支撑一个或多个外科缝钉;
缝钉驱动器,所述缝钉驱动器用于接合和驱动来自所述钉仓的所述缝钉;以及
刀,所述刀可移动地支撑在所述缝合头部组件内;
驱动系统,所述驱动系统用于向所述缝钉驱动器和所述刀施加驱动运动;
砧座,所述砧座能够可拆卸地附接到所述套管针组件的远端;以及
砧座反馈系统,所述砧座反馈系统可操作地与所述套管针组件相连,以用于在所述砧座附接到所述套管针组件的所述远端时提供指示信号,所述砧座反馈系统包括位于所述套管针组件的所述远端和所述砧座之一上的至少一个传感器,所述至少一个传感器与所述外科缝合器械上的指示器相连以向其提供指示信号,
其中,当所述砧座被定位在所需的击发位置时,所述砧座反馈系统停止所述指示信号。
2.根据权利要求1所述的外科缝合器械,其中所述指示器位于所述砧座上。
3.根据权利要求2所述的外科缝合器械,其中所述指示器包括至少一个照明装置。
4.根据权利要求3所述的外科缝合器械,其中所述至少一个照明装置包括至少一个发光二极管。
5.根据权利要求2所述的外科缝合器械,还包括电源,所述电源被支撑在所述砧座上并连接到所述指示器和所述至少一个传感器。
6.根据权利要求1所述的外科缝合器械,其中所述砧座反馈系统包括:
所述指示器,所述指示器被支撑在所述手柄组件、轴组件或砧座之一上;以及
电流源,所述电流源连接到所述套管针组件和所述指示器,使得仅当所述砧座附接到所述套管针组件的所述远端时,电流才从所述电流源流向所述指示器。
7.根据权利要求6所述的外科缝合器械,其中所述指示器包括选自由以下组成的指示器组的指示器:发光装置、振动发生装置和发声装置。
8.根据权利要求6所述的外科缝合器械,其中所述套管针组件上具有与所述电流源和所述指示器相连的多个接触区域,所述接触区域中的至少一个相对于所述接触区域中的至少另一个电绝缘,使得当所述砧座没有附接到所述套管针组件的所述远端时,没有电流从所述电流源流向所述指示器,并且当所述砧座附接到所述套管针组件的所述远端时,所述砧座将所述电绝缘的接触区域电连接以允许所述电流流向所述指示器。
9.根据权利要求1所述的外科缝合器械,还包括致动机构,所述致动机构被可操作地支撑在所述手柄组件上并连接到所述套管针组件,以用于选择性地致动所述轴组件内的所述套管针组件,使得当所述砧座附接到所述套管针组件的所述远端部分时,所述致动机构能使所述套管针组件移动以将所述砧座相对于所述钉仓定位在所需的击发位置处,并且其中所述砧座反馈系统还能够指示所述砧座何时被定位在所述所需的击发位置。
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