CN104107078A - Anastomat and nail anvil component thereof - Google Patents

Anastomat and nail anvil component thereof Download PDF

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Publication number
CN104107078A
CN104107078A CN201310136650.4A CN201310136650A CN104107078A CN 104107078 A CN104107078 A CN 104107078A CN 201310136650 A CN201310136650 A CN 201310136650A CN 104107078 A CN104107078 A CN 104107078A
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CN
China
Prior art keywords
pivot
position
means
support means
anvil
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CN201310136650.4A
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Chinese (zh)
Inventor
刘立波
刘四海
郑凤贤
方云才
张淦
肖扬
杜伟明
汪炬
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瑞奇外科器械(中国)有限公司
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Application filed by 瑞奇外科器械(中国)有限公司 filed Critical 瑞奇外科器械(中国)有限公司
Priority to CN201310136650.4A priority Critical patent/CN104107078A/en
Publication of CN104107078A publication Critical patent/CN104107078A/en

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Classifications

    • 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

Abstract

The invention discloses a pivotable nail anvil component. An anastomat provided with the nail anvil component comprises a nail anvil base, a pivot seat, a supporting device, a connecting rod, an offset device and a stop device. The connecting rod is pivotally connected with the pivot seat, and the offset device acts with the connecting rod and is used for generating offset force of relative pivotal motion of the nail anvil base and the connecting rod; when located at the non-hitting position, the supporting device is meshed with the connecting rod to resist the offset force, and the pivotal motion of the nail anvil base and the connecting rod cannot be generated; when moving to the position after hit, the supporting device is demeshed with the connecting rod, and the pivotal motion of the nail anvil base and the connecting rod can be generated under the action of the offset force; the stop device is arranged between the supporting device and the nail anvil base and is used for preventing the supporting device from moving to the non-hitting position from the position after hit. The stop device is arranged between the supporting device and the nail anvil base, so that the nail anvil base is prevented from pivotally rotating relative to the connecting rod and restoring to generally vertical state with the same, and stability of the pivotal rotating function of the pivotal nail anvil component is improved.

Description

吻合器及其钉砧组件 Stapler and anvil assembly

技术领域 FIELD

[0001] 本发明涉及外科手术吻合器领域,尤其涉及用于圆形吻合器的钉砧组件。 [0001] The present invention relates to surgical staplers, and more particularly relates to an anvil assembly of a circular stapler.

背景技术 Background technique

[0002] 目前外科手术吻合器广泛应用于各种外科手术中,以对组织进行缝合/吻合。 [0002] It surgical stapler widely used in various surgical procedures, suturing to tissue / anastomosis. 已知的外科手术吻合器通常具有包含有缝钉的钉仓、与钉仓相对设置的钉砧和击发装置,击发装置用于将缝钉从钉仓中击发出来、穿过组织并在钉砧上成形。 Known surgical stapler having a staple cartridge generally includes a staple, and the staple anvil and the staple cartridge firing mechanism disposed opposite to, the firing means for firing staples from the staple cartridge out through the tissue and the anvil the forming. 目前的外科手术吻合器的类型主要有直线吻合器和圆形吻合器,其中,直线吻合器用于形成一排或多排的缝钉线, 圆形吻合器用于形成一圈或多圈的圆形缝钉线。 Type current surgical staplers and linear stapling mainly circular stapler, wherein the linear stapler for forming a row or rows of the staple line, a circular one or more turns forming a circular stapler staple line. 使用时,医生将组织置于钉仓和钉砧之间, 通过击发而在组织中形成缝钉线,以实现组织的缝合/吻合。 In use, the tissue is placed between the doctor staple cartridge and the staple anvil, the staple is formed in tissue by a firing line, in order to achieve suturing tissue / anastomosis.

[0003] 圆形吻合器已在外科手术中成功地应用了多年,其通常用于将管状器官缝合到其他解剖结构上的手术中,例如,胃和食管手术。 [0003] In the circular stapler surgery has successfully applied for many years, which is typically sutured to a tubular organ for surgery on other anatomical structures, e.g., the stomach and esophagus surgery. 在常见的端-端吻合手术中,肠道的一部分由于病变被去除,剩余的部分通过圆形吻合器而再被连接起来。 In a common end - to - end anastomosis, the intestine is removed in part due to disease, while the remaining part is re-connected through the circular stapler. 为了连接管状结构,肠道的一端固定于钉砧,肠道的另一端放置于吻合器的钉仓,钉砧具有可拆卸地连接至吻合器的连杆。 In order to connect the tubular structure, an end of the anvil is fixed to the intestinal tract, the intestinal tract, the other end of the staple cartridge placed in the stapler, having an anvil rod detachably connected to a stapler. 当连杆将钉砧连接至吻合器时,钉砧靠近钉仓,将肠道的两端夹持在钉砧与钉仓之间。 When the link is connected to the stapler anvil, the anvil close the staple cartridge, the ends of the intestinal tract clamped between the anvil and the staple cartridge. 之后,吻合器被击发,缝钉被击发出钉仓,穿过肠道的两端,并在钉砧上成形,形成圆形的缝钉线。 Thereafter, the stapler is fired, the staples fired staple cartridge emitted through both ends of the intestine and formed on the anvil, a circular staple line. 击发的同时,环形刀被驱动以切除圆形缝钉线内部的组织,从而在两段肠道间建立通道。 Firing the same time, the annular cutter is driven to cut tissue inside the circular staple line, thereby establishing a passage between the two gut. 击发完成后,钉砧退出时需要通过缝钉线部分,由于圆形缝钉线的直径要小于钉砧的钉砧底座的直径,从而会对钉砧的退出产生明显的阻力。 After completion of the firing, when the need to withdraw the anvil staple line portion, since the diameter of the circular staple line is smaller than the diameter of the anvil base of the anvil, the anvil will thus exit significant resistance. 进而,钉砧的退出有可能会导致缝钉线变形或破坏缝钉线。 Furthermore, the exit anvil may cause damage or deformation of the staple line staple line.

[0004] 为了解决钉砧的退出所产生的问题,研制出了可枢转的钉砧。 [0004] In order to solve the problem of exit anvil produced, developed a pivotable anvil. 这种钉砧的钉砧底座可相对于连杆枢转到与连杆大体平行的枢转位置,形成相对较小的外形,从而减小钉砧退出通过组织吻合部位时与吻合部位接触的面积,进而减小退出阻力,使得钉砧的退出更加容易,降低了其对于吻合效果的影响。 This anvil rod anvil pivoted relative to the base may be substantially parallel to the link pivot position, a relatively small profile, thereby reducing the anvil through the anastomotic site exit contact with tissue at the anastomotic site area for , thereby reducing the resistance to exit, such that the anvil exit easier, reducing the impact on the effect of the anastomosis.

[0005] 但是,现有的可枢转钉砧的可控性较差,枢转运动不稳定,在钉砧退出过程中钉砧底座经常会恢复到与连杆垂直的原始位置,从而失去了枢转的作用。 [0005] However, poor controllability of conventional pivotable anvil pivoting motion unstable and exit the anvil during the anvil often restored to the base of the link perpendicular to the original position, thus losing pivotal role.

[0006] 因此,需要一种外科手术吻合器,特别是其钉砧,以解决现有技术中存在的上述问题。 [0006] Accordingly, a need for a surgical stapler, the anvil which in particular, to solve the above problems of the prior art.

发明内容 SUMMARY

[0007] 为了克服上述现有技术的不足,本发明提供了一种可枢转的钉砧组件,其特征在于,所述钉砧组件包括:钉砧底座,所述钉砧底座包括枢轴座;支撑装置,所述支撑装置设置在所述钉砧底座上,可沿所述枢轴座从未击发位置移动到击发后位置;连杆,所述连杆与所述枢轴座可枢转地枢轴连接;偏置装置,所述偏置装置与所述连杆相作用,用于产生导致所述钉砧底座和所述连杆相对枢转运动的偏置力,其中,当所述支撑装置在所述未击发位置时,所述支撑装置啮合所述连杆,抵抗所述偏置力,以使所述钉砧底座与所述连杆不产生相对的枢转运动,当所述支撑装置移动到所述击发后位置时,所述支撑装置与所述连杆脱离啮合,在所述偏置力的作用下,所述钉砧底座和所述连杆产生相对的枢转运动;止位装置,所述止位装置设置在所述支撑装置和所 [0007] In order to overcome the disadvantages of the prior art, the present invention provides an anvil assembly pivotable, characterized in that said anvil assembly comprising: an anvil base, said base comprising a pivot anvil holder ; supporting means, said supporting means disposed on the anvil base along said pivot seat unfired position to the fired position; a linkage with the pivotable pivot base pivotally connected; biasing means, said biasing means and said link phase separation, for generating a biasing force resulting in the anvil base and the relative pivotal movement of the link, wherein, when the support means in said unfired position, said support means engaging the link against the biasing force, so that the anvil base and the link no relative pivotal movement, when the when the support means is moved to said fired position, said support means with the link disengaged, under the action of the biasing force, the anvil base and the rod to produce relative pivotal movement; stopping means, the stopping means provided on the said support means and 述钉砧底座之间,用于防止所述支撑装置从所述击发后位置移动到所述未击发位置。 Between the base of said anvil, said support means for preventing movement from the cocked position to said unfired position.

[0008] 优选地,所述枢轴座为柱状的;所述支撑装置设有孔,以套装在所述枢轴座上;所述止位装置为设置在所述枢轴座上的倒扣式凸起,所述支撑装置与所述枢轴座之间的配合间隙和所述凸起的尺寸设置为使得:所述凸起允许所述支撑装置从所述未击发位置移动到所述击发后位置,并防止所述支撑装置从击发后位置移动到所述未击发位置。 [0008] Preferably, the pivot is a cylindrical seat; said support means is provided with holes, to suit the pivot base; said stopping means is disposed in the pivot base upside down like projection, with the gap between the support means and the pivot seat and the projection are dimensioned so that: said support means allowing the projection is moved from the unfired position to said fired after the position and preventing movement of said support means from the cocked position to said unfired position.

[0009] 优选地,所述枢轴座为柱状的;所述支撑装置设有孔,以套装在所述枢轴座上;所述止位装置为设置在所述枢轴座上的向外张开的弹性片,所述弹性片的张开方向为所述支撑装置从所述未击发位置到所述击发后位置的方向,使得,当所述支撑装置从所述未击发位置向所述击发后位置移动时,可压缩所述弹性片而通过;当所述支撑装置从所述击发后位置向所述未击发位置移动时,被向外张开的所述弹性片所阻挡。 [0009] Preferably, the pivot is a cylindrical seat; said support means is provided with holes, to suit the pivot base; said stopping means is disposed outwardly of the pivot base open the elastic sheet, the opening direction of the elastic sheet after the firing from the unfired position to a position in the direction of the support means, such that, when said support means from said unfired position to the when the firing position, the compressible resilient sheet through; when said support means from said firing position to said unfired position, said elastic sheet being flared outwardly of the barrier.

[0010] 优选地,所述枢轴座为柱状的;所述支撑装置设有孔,以套装在所述枢轴座上;所述止位装置为所述枢轴座的外径较大部分,所述支撑装置和所述枢轴座的所述外径较大部分之间的配合间隙设置为形成紧配合,使得:当所述支撑装置从所述未击发位置移动到所述击发后位置时,所述支撑装置与所述枢轴座之间形成紧配合,以阻止所述支撑装置从所述击发后位置回到所述未击发位置。 [0010] Preferably, the pivot is a cylindrical seat; said support means is provided with holes, to suit the pivot base; said stopping means is an outer diameter of said larger portion of the pivot base , with the gap provided between the larger outer diameter portion of said support means and said pivot base to form a tight fit, such that: when said firing position of said support means is moved from the unfired position to when the support means and a tight fit between the pivot seat back to prevent the support means from said unfired position to the fired position.

[0011] 优选地,所述枢轴座为柱状的;所述支撑装置设有孔,以套装在所述枢轴座上;所述止位装置为所述支撑装置上的弹性托盘和所述钉砧底座上的倒扣式凸起,所述弹性托盘和所述倒扣式凸起的尺寸设置为使得:允许所述支撑装置从所述未击发位置移动到所述击发后位置,阻止所述支撑装置从所述击发后位置移动到所述未击发位置。 [0011] Preferably, the pivot is a cylindrical seat; said support means is provided with holes, to suit the pivot base; said stopping means is an elastic support means on said tray and said button down on anvil base projection, the elastic button tray and the inverted projection dimensioned such that: the support means to allow movement from said unfired position to said fired position rear to prevent the moving said support means from said fired position to said unfired position.

[0012] 优选地,所述枢轴座设有开槽,所述开槽两侧的侧壁上设有枢轴孔;所述连杆的一端部设置在所述开槽中,所述端部设有枢轴孔;枢轴,所述枢轴设置在所述枢轴座和所述连杆的枢轴孔中,以使所述枢轴座和所述连杆可枢转地枢轴连接。 [0012] Preferably, the base is provided with a pivot slot, the slot is provided on both sidewalls of the pivot hole; portion of the link end disposed in the slot, the end portion is provided with a pivot hole; a pivot provided at said pivot hole and the pivot seat of the connecting rod, so that the pivot seat and the pivot link pivotally connection.

[0013] 优选地,所述偏置装置为弹簧。 [0013] Preferably, the biasing means is a spring.

[0014] 优选地,所述支撑装置具有宽的边缘。 [0014] Preferably, the support means having a wide edge.

[0015] 本发明提供一种圆形吻合器,所述圆形吻合器包括前述的任一种钉砧组件。 [0015] The present invention provides a circular stapler, a circular stapler comprising any of the foregoing anvil assembly.

[0016] 本发明通过在支撑装置和枢轴座之间设置止位装置,防止支撑装置从第二位置移动到第一位置,进而防止钉砧底座相对于连杆枢转恢复成与其成大体垂直的状态,改善了可枢转钉砧组件的枢转功能的稳定性。 [0016] The present invention is provided by the stopping means between the support means and the pivot seat, preventing the support means from the second position to the first position, thus preventing the anvil with respect to the chassis to restore the link pivot generally perpendicular thereto state, improves the stability of the pivotable anvil assembly pivot function.

[0017] 在发明内容部分中引入了一系列简化形式的概念,这将在具体实施方式部分中进一步详细说明。 [0017] introduced the concept of a series of simplified form in the Summary section, which will be described in further detail in the Detailed Description. 本发明内容部分并不意味着要试图限定出所要求保护的技术方案的关键特征和必要技术特征,更不意味着试图确定所要求保护的技术方案的保护范围。 This summary is not intended to identify key features or essential features of the claimed technical solutions, nor is it intended to determine the scope of the claimed technical solution.

[0018] 以下结合附图,详细说明本发明的优点和特征。 [0018] in conjunction with the following drawings, detailed description of the advantages and features of the present invention.

附图说明 BRIEF DESCRIPTION

[0019] 本发明的下列附图在此作为本发明的一部分用于理解本发明。 [0019] The following figures of the present invention is used herein as part of the present invention to understand the invention. 附图中示出了本发明的实施例及其描述,用来解释本发明的原理。 In the embodiment shown and described embodiments of the present invention are shown, serve to explain the principles of the invention. 在附图中, In the drawings,

[0020] 图1为现有技术的外科手术圆形吻合器的示意图; [0020] FIG. 1 is a schematic view of a surgical circular stapler prior art;

[0021] 图2是与钉砧组件相连的细长体的端部的示意图; [0021] FIG. 2 is a schematic view of an end portion of the elongated body and the anvil assembly is connected;

[0022] 图3是根据本发明的一具体实施方式的可枢转的钉砧组件的示意图; [0022] FIG. 3 is a schematic view of the pivotable anvil assembly of a particular embodiment of the present invention;

[0023] 图4是根据本发明的一具体实施方式的枢轴座的示意图; [0023] FIG. 4 is a schematic view of the pivot base according to an embodiment of the present invention;

[0024] 图5是根据本发明的一具体实施方式的连杆的示意图; [0024] FIG. 5 is a schematic view of a particular embodiment of the link according to the present embodiment of the invention;

[0025] 图6是根据本发明的一具体实施方式的支撑装置的示意图; [0025] FIG. 6 is a schematic view of the support device according to an embodiment of the present invention;

[0026] 图7是根据本发明的一具体实施方式的可枢转的钉砧组件在未枢转状态下的剖视图; [0026] FIG. 7 is a sectional view in the non-pivoted state in accordance with the anvil assembly may be pivoted to an embodiment of the specific embodiments of the present invention;

[0027] 图8是根据本发明的一具体实施方式的可枢转的钉砧组件在未枢转状态下凸出部啮合连杆的示意图; [0027] FIG. 8 is a schematic view of the engaging portion is projected in the non-link pivot state according to the anvil assembly may be pivoted to an embodiment of the specific embodiments of the present invention;

[0028] 图9是根据本发明的一具体实施方式的可枢转的钉砧组件在枢转状态下的剖视图; [0028] FIG. 9 is a sectional view in the state according to the pivoting anvil assembly may be pivoted to an embodiment of the specific embodiments of the present invention;

[0029] 图10是根据本发明的一具体实施方式的可枢转的钉砧组件在枢转状态下凸出部与连杆脱离啮合的示意图; [0029] FIG. 10 is a schematic view of the engagement projecting portion of the link in the disengaged state in accordance with pivoting the pivotable anvil assembly of a particular embodiment of the present invention;

[0030] 图11是利用根据本发明的一具体实施方式的外科手术圆形吻合器进行端-端吻合手术的示意图; [0030] FIG. 11 is performed using end surgical circular stapler embodiment of a particular aspect of the present invention - a schematic end anastomosis;

[0031] 图12是根据本发明的一具体实施方式的钉砧组件的示意图; [0031] FIG. 12 is a schematic view of an anvil assembly of a particular embodiment of the present invention;

[0032] 图13为根据本发明的一具体实施方式的支撑装置处于未击发位置的示意图; [0032] FIG. 13 is a schematic view of the unfired position in the support device according to one embodiment of the present invention;

[0033] 图14为根据本发明的一具体实施方式的支撑装置处于击发后位置的示意图; [0033] FIG. 14 is a schematic view after the firing position in the support device according to one embodiment of the present invention;

[0034] 图15是根据本发明的一个具体实施方式的钉砧组件的示意图; [0034] FIG. 15 is a schematic view of the anvil assembly of the present invention, a specific embodiment of the embodiment;

[0035] 图16是根据本发明的一个具体实施方式的钉砧组件的示意图; [0035] FIG. 16 is a schematic view of the anvil assembly of the present invention, a specific embodiment of the embodiment;

[0036] 图17是根据本发明的一个具体实施方式的钉砧组件的示意图; [0036] FIG. 17 is a schematic view of the anvil assembly of the present invention, a specific embodiment of the embodiment;

[0037] 图18是根据本发明的一个具体实施方式的钉砧组件的示意图。 [0037] FIG. 18 is a schematic view of the anvil assembly of the present invention are described embodiment.

具体实施方式 Detailed ways

[0038] 在下文的描述中,给出了大量具体的细节以便提供对本发明更为彻底的理解。 [0038] In the following description, numerous specific details are given to provide a more thorough understanding of the present invention. 然而,对于本领域技术人员来说显而易见的是,本发明可以无需一个或多个这些细节而得以实施。 However, the skilled person it will be apparent that the present invention may be practiced without one or more of these details are implemented. 在其他的例子中,为了避免与本发明发生混淆,对于本领域公知的一些技术特征未进行描述。 In other examples, in order to avoid confusion with the present invention, known in the art for some of the technical features are not described.

[0039] 为了彻底了解本发明,将在下列的描述中提出详细的结构。 [0039] For a thorough understanding of the present invention, a configuration will be set forth in the following detailed description. 显然,本发明的施行并不限定于本领域的技术人员所熟习的特殊细节。 Obviously, the purposes of the present invention is not limited to the specific details of skill in the art are familiar with. 本发明的较佳实施例详细描述如下,然而除了这些详细描述外,本发明还可以具有其他实施方式。 As described in detail preferred embodiments of the present invention, however, in addition to the detailed description, the present invention also may have other embodiments.

[0040] 本发明提供了一种具有可枢转钉砧组件的外科手术圆形吻合器,本发明通过在可枢转钉砧组件中设置止位装置,改善了钉砧组件的枢转运动的可控性,提高了枢转运动的稳定性,从而解决了可枢转钉砧组件在退出过程中从枢转位置恢复至垂直的初始位置的问题。 [0040] The present invention provides a surgical circular stapler having a pivotable anvil assembly of the present invention is provided by the stopping means pivotable anvil assembly, the improvement of pivotal movement of the anvil assembly controllability, improve the stability of pivotal movement, thereby solving the problem of the pivotable anvil assembly recover from the pivot to the vertical position in the initial position of the exit process.

[0041] 下面将结合对根据本发明的具体实施方式进行详细描述。 [0041] The following detailed description of the specific embodiments according to the present invention.

[0042] 图1为现有技术的外科手术圆形吻合器的示意图。 [0042] FIG. 1 is a prior art circular surgical stapler of FIG. 如图所示,圆形吻合器1包括钉砧组件2、细长体3和手柄4。 As shown, the circular stapler anvil assembly 2 comprises an elongated body 3 and a handle 4. 钉砧组件2可拆卸地与细长体3的一端部相连,细长体3 的另一端部设置有手柄4。 Detachable anvil assembly 2 and an end portion of the elongated body 3 is connected to the other end portion of the elongated body 3 is provided with a handle 4.

[0043] 手柄4通常包括击发柄41和钉砧调节部件42。 [0043] 4 generally includes a firing handle 41 and the stem 42 of anvil adjustment member. 击发柄41用于击发缝钉和推进刀具,以对组织进行缝合与切割。 The firing handle 41 to fire staples and advancing the tool to the tissue stapling and cutting. 钉砧调节部件42用于调节钉砧组件2与细长体3之间的距离,以在钉砧组件2和细长体3之间夹持住待吻合的组织。 The anvil adjustment member 42 for adjusting the distance between the anvil assembly 32 and an elongated body between the anvil assembly to the elongated body 2 and 3 clamped tissue to be stapled.

[0044] 图2是与钉砧组件相连的细长体的端部的示意图。 [0044] FIG. 2 is a schematic view of an end portion of the elongated body and the anvil assembly is connected. 如图所示,该端部通常设置有钉仓31、环形刀32、推进器33和连杆连接器34。 As shown, the end portion 31 is generally provided with a staple cartridge, the annular knife 32, pusher rod 33 and the connector 34. 钉仓31为环形,其中设置有按环形分布的缝钉。 An annular cartridge 31, which is provided with staples in an annular profile. 钉仓31的内侧设置有环形刀32和推进器33。 The inner cartridge 31 is provided with an annular blade 32 and the pusher 33. 在该端部的中央设置有连杆连接器34。 In the center of the end portion is provided with a connecting rod 34.

[0045] 图3是根据本发明的一具体实施方式的可枢转的钉砧组件的示意图。 [0045] FIG. 3 is a schematic view of the anvil assembly can be pivoted to a specific embodiment of the present invention. 如图所示, 钉砧组件2包括钉砧底座21、支撑装置22、弹簧23和连杆24。 As shown, the anvil assembly 2 comprises an anvil base 21, the support means 22, spring 23, and link 24. 钉砧底座21大体为圆盘形, 其中心处设置有与其圆盘面垂直的柱状的枢轴座25。 The anvil 21 is generally disc-shaped base, at the center thereof is provided with a plane perpendicular to its cylindrical disk holder 25 pivot. 连杆24的一端部能够可拆卸地连接至细长体3的连杆连接器34,以在钉砧组件2和细长体3之间形成可拆卸的连接。 One end of the link portion 24 can be detachably connected to the connector rod 34 of elongate body 3, to form a detachable connection between the anvil assembly and the elongated body 3 2.

[0046] 图4是根据本发明的一具体实施方式的枢轴座的示意图。 [0046] FIG. 4 is a schematic view of the pivot base according to an embodiment of the present invention. 如图所示,枢轴座25的自由端设置有开槽251和枢轴孔252。 As illustrated, the free end of the pivot base 25 is provided with a slot 251 and pivot hole 252. 图5是根据本发明的一具体实施方式的连杆的示意图。 5 is a schematic diagram of a particular embodiment of a link of the present invention. 如图所示,连杆24的一端部设置有枢轴孔241,该端部可装配到枢轴座25的开槽251 中,枢轴孔252、枢轴孔241与枢轴26可相互配合以使钉砧底座21与连杆24形成可枢转的枢轴连接。 As shown, one end of link 24 is provided with a pivot hole 241, the end portion 251 can be fitted into the slot 25 in the pivot base, a pivot hole 252, a pivot hole 241 and the pivot shaft 26 may cooperate with each other such that the anvil base 21 is formed with the link 24 is pivotally connected to pivot.

[0047] 在该具体实施例中弹簧23为偏置装置,用于产生导致连杆24与钉站底座21相对枢转的偏置力,偏置装置还可以是其他弹性部件或其他可产生所述偏置力的装置。 [0047] In this particular embodiment, spring 23 is a biasing means, for generating a link leading to the base station 24 and the staple 21 to pivot relative to the biasing force of the biasing means also may be other elastic member or the other may be generated the force of said biasing means. 作为示例,在本实施例中偏置装置设置在支撑装置22与连杆24之间,偏置装置还可设置在钉砧底座21和连杆24之间。 By way of example, in the present embodiment, the biasing means is provided between the supporting means 22 with the link 24, the biasing means may also be provided between the anvil 21 and the base link 24.

[0048] 图6是根据本发明的一具体实施方式的支撑装置的示意图。 [0048] FIG. 6 is a schematic view of the support device according to an embodiment of the present invention. 如图所示,支撑装置22大体为圆筒形,其中部设有孔221,以套装在枢轴座25上。 As shown, the support means 22 is generally cylindrical, wherein a hole portion 221, to fit over the pivot base 25. 支撑装置22套装在枢轴座25 上,可以沿枢轴座25移动。 Supporting means 22 fitted over the pivot base 25, the pivot base 25 may be moved along. 在孔221与枢轴座25的开槽251相对应的位置处设置有向内延伸出的凸出部222。 222 is provided with an inwardly extending protrusion at the position of the pivot seat slotted hole 221 corresponding to 25,125. 在支撑装置22设置有弹簧23的实施例中,支撑装置22设置有用于安装弹簧23的凸片223。 In the supporting device 22 is provided with a spring 23 in the embodiment, the support means 22 is provided with a mounting tab 223 of the spring 23.

[0049] 图7是根据本发明的一具体实施方式的可枢转的钉砧组件在未枢转状态下的剖视图。 [0049] FIG. 7 is a sectional view in the non-pivoted state in accordance with the anvil assembly may be pivoted a particular embodiment of the present invention. 图8是根据本发明的一具体实施方式的可枢转的钉砧组件在未枢转状态下凸出部啮合连杆的示意图。 FIG 8 is a schematic view of the anvil assembly can be pivoted to a specific embodiment of the present invention in the non-pivoted state of the projecting portion engaged by the link. 如图所示,当支撑装置22处于未击发位置时,凸出部222啮合连杆24,以抵抗弹簧23所产生的偏置力,保持钉砧底座21处于与连杆24大体垂直的位置,不发生相对的枢转运动。 As shown, when the support means 22 is in the unfired position, the projecting portion 222 engaged by the link 24, against the biasing force generated by the spring 23, retaining the anvil 21 in the base 24 and the link substantially vertical position, relative pivotal movement does not occur.

[0050] 图9是根据本发明的一具体实施方式的可枢转的钉砧组件在枢转状态下的剖视图。 [0050] FIG. 9 is a sectional view in the state according to the pivoting anvil assembly may be pivoted a particular embodiment of the present invention. 图10是根据本发明的一具体实施方式的可枢转的钉砧组件在枢转状态下凸出部与连杆脱离啮合的示意图。 FIG 10 is a schematic view of the engagement projecting portion of the link in the disengaged state in accordance with pivoting the anvil assembly may be pivoted a particular embodiment of the present invention. 如图所示,当支撑装置22沿箭头A方向移动到击发后位置时,凸出部222与连杆24脱离啮合,在弹簧23所产生的偏置力作用下,钉砧底座21与连杆24沿箭头B方向发生相对的枢转运动,导致钉砧底座21运动到与连杆24大体平行的位置,形成相对较小的钉砧组件外形,以减小钉砧组件退出时与组织吻合部的接触面积,进而减小退出阻力,减少退出时对于吻合部的破坏,使退出更加容易。 Shown, when the support means is moved to the fired position 22 direction of arrow A, the projecting portion 222 engaged with the link 24 from the FIG., Under the biasing force of the spring 23 is generated, anvil base 21 of the link 24 direction of arrow B opposite to the pivotal movement occurs, resulting in the anvil base 21 of the link 24 is moved to a position substantially parallel, a relatively small profile anvil assembly, the anvil assembly to reduce the tissue during anastomosis exit portion contact area, thereby reducing the resistance of exit, to reduce the damage to the exit of the anastomosis, making it easier to exit.

[0051] 图11是利用根据本发明的一具体实施方式的外科手术圆形吻合器进行端-端吻合手术的示意图。 [0051] FIG. 11 is performed using end surgical circular stapler embodiment of a particular aspect of the present invention - a schematic end anastomosis. 如图所示,手术时,钉砧组件2被置于一侧的待吻合的荷包收口的管状组织5中,细长体3则置于另一侧待吻合的荷包收口的组织5'中,连杆24可从一侧的荷包收口中伸出,穿过另一侧的荷包收口,通过连杆连接器34连接至细长体3。 As shown, during operation, the anvil assembly 2 is placed on the side to be stapled tubular tissue pockets cuffs 5, the other side of the elongated body 3 to be stapled shut tissue was placed pockets 5 ', link 24 may protrude from the wallet to close the mouth side, through the other side of the pouch shut, connected by a connecting rod 34 to the elongated body 3.

[0052] 医生通过钉砧调节部件42调节钉砧组件2与细长体3之间的距离,以将两侧待吻合的组织夹持在钉砧组件2和细长体3之间。 [0052] The doctor adjusting the anvil member 42 by adjusting the distance between the anvil assembly 32 and the elongated body, the both sides of the tissue to be stapled is clamped between anvil assembly 2 and the elongated body 3.

[0053] 随后,医生通过击发柄41进行吻合击发,缝钉被击发出钉仓31,穿过钉砧组件2和细长体3之间的组织,在钉砧组件21上成形,从而在组织中形成环形的缝钉线。 [0053] Then, the doctor 41 by a firing handle anastomosis fired, staples fired staple cartridge 31 sent, through the tissue between the anvil assembly 3 and the elongated body 2, formed in the anvil assembly 21 so that tissue forming an annular staple line.

[0054] 同时,环形刀32被推向钉砧组件21,以切除缝钉线内侧的组织,在两侧的待吻合组织之间形成通道。 [0054] At the same time, the annular knife 32 is urged toward the anvil assembly 21 to cut tissue inside the staple line seam, a channel is formed between sides of the tissue to be stapled.

[0055] 在击发柄41的作用下,推进器33也被推向钉砧组件2,推进器33作用于支撑装置22,使支撑装置22沿图9和10中箭头A方向、从相对于枢轴座25的未击发位置移动到击发后位置,导致凸出部222与连杆24脱离啮合,钉砧底座21在弹簧23在作用下沿图9和10中箭头B方向、相对于连杆24枢转到大体与其平行的位置,形成相对较小的外形,以利于随后钉砧组件通过吻合部位而退出。 [0055] In the firing handle 41 under the action of the pusher 33 is pushed towards anvil assembly 2, the pusher 33 acts on the support means 22, the supporting means in the direction of arrow A in FIG. 9 and 10, 22, with respect to the pivot after the unfired position to the fired position 25 moves the shaft holder, resulting in the link 24 and the protrusion 222 disengages from the anvil 21 in the base under the action of the spring 23 in the direction of arrow B in FIGS. 9 and 10, relative to the link 24 pivoted to a position substantially parallel thereto, a relatively small profile, to facilitate assembly of the anvil and then exits through the anastomotic site.

[0056] 但是,在钉砧组件2退出过程中,在组织的吻合部位的作用力下,钉砧底座21很可能会恢复成与连杆24大体垂直的状态,从而无法实现钉砧组件的枢转作用。 [0056] However, in the anvil assembly 2 exits the process, under the force of the anastomotic site tissue, anvil base 21 is likely to be restored to the state substantially perpendicular to the connecting rod 24, so that the anvil assembly can not be achieved pivot transcytosis.

[0057] 为了解决上述问题,本发明提供一种可枢转的钉砧组件。 [0057] In order to solve the above problems, the present invention provides an anvil assembly pivotable. 所述可枢转的钉砧组件设置有止位装置,该止位装置设置在支撑装置和枢轴座之间,其允许支撑装置从相对于枢轴座的未击发位置移动到击发后位置,但可防止支撑装置从击发后位置移动到未击发位置,从而防止钉砧底座从大体平行于连杆的位置枢转恢复成大体垂直于连杆的位置,以使钉砧组件在退出过程中保持相对较小的外形,减小对吻合部位的破坏,减小退出时的阻力。 The anvil assembly is provided with a pivotable stopping means, the stopping means is disposed between the support means and the pivot base, which allows the support means to move from the unfired position with respect to the pivot base fired position, However, the mobile support means is prevented from firing position to the unfired position, thereby preventing the base from the position of the anvil to pivot generally parallel to the rotation link substantially perpendicular to restore the position of the connecting rod, so that the anvil assembly in its eject cycle relatively small form factor, reduced damage to the anastomotic site, reducing the resistance of the exit.

[0058] 图12是根据本发明的一个具体实施方式的钉砧组件的示意图。 [0058] FIG. 12 is a schematic view of the anvil assembly of the present invention, a specific embodiment of embodiment. 如图所示,在该实施方式中,止位装置为设置在枢轴座25上的倒扣式凸起253。 As shown, in this embodiment, the stopping means is provided on the reverse button 25 pivot base projection 253. 该倒扣式凸起253的横截面呈三角形或梯形,在支撑装置从未击发位置到击发后位置的方向上为从枢轴座25表面逐渐凸起的斜面,在支撑装置从击发后位置到未击发位置的方向上为阶跃式凸台。 Button of the inverted triangular or trapezoidal cross-section projection 253 in the unfired position to the support means in the direction from the position after firing 25 is gradually raised surface of the pivot base of the inclined surface, the support means from the cocked position to is stepped bosses direction unfired position.

[0059] 图13为根据本发明的一具体实施方式的支撑装置处于未击发位置的示意图。 [0059] FIG. 13 is a schematic view of the unfired position in the support device according to one embodiment of the present invention. 如图所示,支撑装置22处于未击发位置时,位于倒扣式凸起253靠近其斜面的一侧。 As shown, the support means 22 is in the unfired position, the projection 253 is located near the button down slope side thereof.

[0060] 图14为根据本发明的一具体实施方式的支撑装置处于击发后位置的示意图。 [0060] FIG. 14 is a schematic diagram of the firing position after the support device according to a particular embodiment of the present invention in embodiments. 如图所示,支撑装置22处于击发后位置时,位于倒扣式凸起253靠近其凸台的一侧。 As shown, the support means 22 when in the cocked position, the side projection 253 located near the button down its boss.

[0061] 设置支撑装置22与枢轴座25之间的配合间隙以及倒扣式凸起253的尺寸,以允许支撑装置22从未击发位置移动到击发后位置,并防止支撑装置22再从击发后位置移动回未击发位置,从而防止钉站底座21再枢转成与连杆24大体垂直的状态。 [0061] a support means 22 and the pivot base 25 with the gap between the flip-chip type and size of the protrusions 253, to allow the support means 22 unfired position to the fired position, and to prevent the support means 22 from the firing and then after moving back to the position of the unfired position, thereby preventing further pivoting of the link 24 into the state substantially perpendicular to the base station 21 staples. 其中,倒扣式凸起可以是沿枢轴座周边连续延伸的一体的凸起,也可以是沿枢轴座周边离散分布的多个凸起。 Wherein the down button protrusion may be integrally formed raised peripheral edge continuously extending pivot base may be a plurality of discrete, distributed along the periphery of the pivot base projections.

[0062] 图15是根据本发明的一个具体实施方式的钉砧组件的示意图。 [0062] FIG. 15 is a schematic view of the anvil assembly of the present invention are described embodiment. 如图所示,在该实施例中,止位装置为设置在枢轴座25上的向外张开的弹性片254。 FIG flared elastic piece, in this embodiment, the stopping means is arranged on a pivot base 25 of 254. 弹性片254的张开方向为支撑装置从未击发位置到击发后位置的方向,使得,当支撑装置22从未击发位置向击发后位置移动时,可压缩弹性片254而通过;当支撑装置22从击发后位置向未击发位置移动时,则会被向外张开的弹性片254挡住。 The elastic sheet 254 for opening direction support means unfired position to the fired position the rear direction, such that, when the support means 22 unfired position to the fired position the compressible resilient sheet 254 through; when the support means 22 moves from the cocked position to the unfired position, it will be the elastic sheet 254 outwardly flared blocked.

[0063] 图16是根据本发明的一个具体实施方式的钉砧组件的示意图。 [0063] FIG. 16 is a schematic view of the anvil assembly of the present invention, a specific embodiment of embodiment. 如图所示,在该实施例中,止位装置为枢轴座25的外径较大部分255。 As shown, in this embodiment, the outer diameter of the stopping means 25 of the pivot base portion 255 greater. 设置支撑装置22的孔221和枢轴座25的外径较大部分255之间的配合间隙,使其形成紧配合。 A support means 221 and the bore 22 with the gap between the larger outer diameter portion 255 of the pivot base 25, to form a tight fit. 从而当支撑装置22从未击发位置移动到击发后位置时,支撑装置22与枢轴座25之间形成紧配合,支撑装置22无法再回到未击发位置。 So that when the support means 22 unfired position to the fired position, the supporting means 22 with a tight fit between the pivot base 25, supporting means 22 can not go back unfired position.

[0064] 图17是根据本发明的一个具体实施方式的钉砧组件的示意图。 [0064] FIG. 17 is a schematic view of the anvil assembly of the present invention are described embodiment. 如图所示,在该实施例中,止位装置为支撑装置22上的弹性托盘223和钉砧底座21上的倒扣式凸起211,设置弹性托盘223和倒扣式凸起211的尺寸,使得,允许支撑装置22从未击发位置移动到击发后位置,阻止其从击发后位置移动到未击发位置。 As shown, in this embodiment, the stopping means is an elastic support tray 223 and the anvil on the base 22 on the button 21 down projection apparatus 211, the tray 223 and the elastic button down size of the protrusions 211 so, the support means 22 allows the unfired position to the fired position, against movement from the cocked position to the unfired position.

[0065] 在现有技术中,推进器推动支撑装置的作用界面为支撑装置的边沿,由于该边沿较窄,推进器与支撑装置之间的作用力不稳定。 [0065] In the prior art, the pusher pushes the supporting means for the interfacial edge support means, since the rim is narrow, between the propulsion force with unstable support means. 图18是根据本发明的一个具体实施方式的钉砧组件的示意图。 FIG 18 is a schematic view of the anvil assembly of the present invention, a specific embodiment of embodiment. 如图所示,在该实施例中,支撑装置22设置有更宽的边缘224,使得推进器对于支撑装置的推动作用更加稳定。 As shown, in this embodiment, the support means 22 is provided with a wider edge 224, so that the pusher role in promoting a more stable support means.

[〇〇66] 本发明已经通过上述实施例进行了说明,但应当理解的是,上述实施例只是用于举例和说明的目的,而非意在将本发明限制于所描述的实施例范围内。 [〇〇66] The present invention has been described by the above embodiments, it should be understood that the above examples are only for purposes of illustration and description, and not intended to be within the scope of the embodiments of the present invention be limited to the described . 此外本领域技术人员可以理解的是,本发明并不局限于上述实施例,根据本发明的教导还可以做出更多种的变型和修改,这些变型和修改均落在本发明所要求保护的范围以内。 Moreover, those skilled in the art will be appreciated that the present invention is not limited to the above embodiment, in accordance with the teachings of the present invention may be made more of the variations and modifications, all such variations and modifications fall within the invention as claimed within the range. 本发明的保护范围由附属的权利要求书及其等效范围所界定。 The scope of the present invention is defined by the appended claims and their equivalent scope.

Claims (9)

1. 一种可枢转的钉砧组件,其特征在于,所述钉砧组件包括: 钉砧底座,所述钉砧底座包括枢轴座; 支撑装置,所述支撑装置设置在所述钉砧底座上,可沿所述枢轴座从未击发位置移动到击发后位置; 连杆,所述连杆与所述枢轴座可枢转地枢轴连接; 偏置装置,所述偏置装置与所述连杆相作用,用于产生导致所述钉砧底座和所述连杆相对枢转运动的偏置力, 其中,当所述支撑装置在所述未击发位置时,所述支撑装置啮合所述连杆,抵抗所述偏置力,以使所述钉砧底座与所述连杆不产生相对的枢转运动,当所述支撑装置移动到所述击发后位置时,所述支撑装置与所述连杆脱离啮合,在所述偏置力的作用下,所述钉砧底座和所述连杆产生相对的枢转运动; 止位装置,所述止位装置设置在所述支撑装置和所述钉砧底座之间,用于防止所述支撑装置从 An anvil assembly may be pivotable, characterized in that said anvil assembly comprising: an anvil base, said base comprising a pivot base anvil; supporting means, said supporting means disposed in the anvil the base, the pivot base along the unfired position to a fired position; a linkage with the pivot seat is pivotally connected to a pivot; biasing means, the biasing means phase separation of the link, for generating a biasing force resulting in the anvil base and the relative pivotal movement of the link, wherein, when said support means in said unfired position, said support means engaging said rod against the biasing force, so that the anvil base and the link does not produce relative pivotal movement of the mobile device when the rear support to the firing position, said support the link means and disengaged, under the biasing force, the anvil base and the rod to produce relative pivotal movement; stopping means, the stopping means provided on the support anvil means and between said base, said support means for preventing from 述击发后位置移动到所述未击发位置。 Later fired position to the unfired position.
2. 根据权利要求1所述的钉砧组件,其特征在于: 所述枢轴座为柱状的; 所述支撑装置设有孔,以套装在所述枢轴座上; 所述止位装置为设置在所述枢轴座上的倒扣式凸起,所述支撑装置与所述枢轴座之间的配合间隙和所述凸起的尺寸设置为使得:所述凸起允许所述支撑装置从所述未击发位置移动到所述击发后位置,并防止所述支撑装置从击发后位置移动到所述未击发位置。 The anvil assembly according to claim 1, wherein: said pivot seat is cylindrical; said support means is provided with holes, to suit the pivot axis of the seat; said stopping means is disposed in the pivot seat down button projection, with the gap between the support means and the pivot seat and the projection are dimensioned so that: said support means allowing the projection moved from the unfired position to the fired position after, and to prevent said support means from the cocked position to said unfired position.
3. 根据权利要求1所述的钉砧组件,其特征在于: 所述枢轴座为柱状的; 所述支撑装置设有孔,以套装在所述枢轴座上; 所述止位装置为设置在所述枢轴座上的向外张开的弹性片,所述弹性片的张开方向为所述支撑装置从所述未击发位置到所述击发后位置的方向,使得:当所述支撑装置从所述未击发位置向所述击发后位置移动时,可压缩所述弹性片而通过;当所述支撑装置从所述击发后位置向所述未击发位置移动时,被向外张开的所述弹性片所阻挡。 The anvil assembly according to claim 1, wherein: said pivot seat is cylindrical; said support means is provided with holes, to suit the pivot axis of the seat; said stopping means is an elastic sheet disposed outwardly flared at said pivot seat, opening direction of the elastic sheet after the firing from the unfired position to a position in the direction of the support means, such that: when the when said support means is moved from the unfired position to said fired position, said elastic sheet through a compressible; when the supporting means moves from the firing position to the unfired position, the outwardly Zhang open the elastic barrier sheets.
4. 根据权利要求1所述的钉砧组件,其特征在于: 所述枢轴座为柱状的; 所述支撑装置设有孔,以套装在所述枢轴座上; 所述止位装置为所述枢轴座的外径较大部分,所述支撑装置和所述枢轴座的所述外径较大部分之间的配合间隙设置为形成紧配合,使得:当所述支撑装置从所述未击发位置移动到所述击发后位置时,所述支撑装置与所述枢轴座之间形成紧配合,以阻止所述支撑装置从所述击发后位置回到所述未击发位置。 The anvil assembly according to claim 1, wherein: said pivot seat is cylindrical; said support means is provided with holes, to suit the pivot axis of the seat; said stopping means is with the gap provided between the larger outer diameter of the larger outer diameter portion of the pivot base portion, said support means and said pivot base to form a tight fit, such that: when the support means from the said unfired position is moved to the position after the firing, a tight fit between the support means and the pivot seat, in order to prevent the back support means from said unfired position to the fired position.
5. 根据权利要求1所述的钉砧组件,其特征在于: 所述枢轴座为柱状的; 所述支撑装置设有孔,以套装在所述枢轴座上; 所述止位装置为所述支撑装置上的弹性托盘和所述钉砧底座上的倒扣式凸起,所述弹性托盘和所述倒扣式凸起的尺寸设置为使得:允许所述支撑装置从所述未击发位置移动到所述击发后位置,阻止所述支撑装置从所述击发后位置移动到所述未击发位置。 The anvil assembly according to claim 1, wherein: said pivot seat is cylindrical; said support means is provided with holes, to suit the pivot axis of the seat; said stopping means is button down on the elastic base tray and said anvil means on said support protrusions, the elastic button tray and the inverted projection dimensioned such that: the support means to allow said unfired from position after the firing position, to prevent movement of said support means from said unfired position to the fired position.
6. 根据前述任一项权利要求所述的钉砧组件,其特征在于: 所述枢轴座设有开槽,所述开槽两侧的侧壁上设有枢轴孔; 所述连杆的一端部设置在所述开槽中,所述端部设有枢轴孔; 枢轴,所述枢轴设置在所述枢轴座和所述连杆的枢轴孔中,以使所述枢轴座和所述连杆可枢转地枢轴连接。 The anvil assembly according to any of the preceding claims, characterized in that: said seat is provided with pivot slot, said slot is provided on both sidewalls of the pivot hole; the connecting rod one end disposed in said slot, said end portion is provided with a pivot hole; a pivot provided at said pivot hole and the pivot seat of the connecting rod, so that the said pivot holder and a pivot link pivotally connected.
7. 根据前述任一项权利要求所述的钉砧组件,其特征在于: 所述偏置装置为弹簧。 The anvil assembly according to any of the preceding claims, wherein: said biasing means is a spring.
8. 根据前述任一项权利要求所述的钉砧组件,其特征在于: 所述支撑装置具有宽的边缘。 According to any one of the preceding claims anvil assembly according to claim, wherein: said support means having a wide edge.
9. 一种圆形吻合器,所述圆形吻合器包括根据前述任一项权利要求所述的钉砧组件。 A circular stapling device, a circular stapler comprising an anvil assembly according to any of the preceding claims.
CN201310136650.4A 2013-04-19 2013-04-19 Anastomat and nail anvil component thereof CN104107078A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698376A2 (en) * 1994-08-25 1996-02-28 United States Surgical Corporation Anvil for circular stapler
CN1907239A (en) * 2005-08-04 2007-02-07 苏州天臣国际医疗科技有限公司 Turnover nail-anvil assembly
CN1933785A (en) * 2004-03-19 2007-03-21 Tyco医疗健康集团 Anvil assembly with improved cut ring
CN200939155Y (en) * 2006-08-03 2007-08-29 瑞奇外科器械(北京)有限公司 Reversible nail anvil of disposable end-to-end anastomat
CN200957100Y (en) * 2006-08-03 2007-10-10 瑞奇外科器械(北京)有限公司 Plug on/off structure between body and anvil of surgery anastomat
US20100160927A1 (en) * 2006-08-10 2010-06-24 Yuri Urin Device for Preparing Tissue for Anastomosis
CN203195731U (en) * 2013-04-19 2013-09-18 瑞奇外科器械(中国)有限公司 Anastomat and nail-anvil assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698376A2 (en) * 1994-08-25 1996-02-28 United States Surgical Corporation Anvil for circular stapler
CN1933785A (en) * 2004-03-19 2007-03-21 Tyco医疗健康集团 Anvil assembly with improved cut ring
CN1907239A (en) * 2005-08-04 2007-02-07 苏州天臣国际医疗科技有限公司 Turnover nail-anvil assembly
CN200939155Y (en) * 2006-08-03 2007-08-29 瑞奇外科器械(北京)有限公司 Reversible nail anvil of disposable end-to-end anastomat
CN200957100Y (en) * 2006-08-03 2007-10-10 瑞奇外科器械(北京)有限公司 Plug on/off structure between body and anvil of surgery anastomat
US20100160927A1 (en) * 2006-08-10 2010-06-24 Yuri Urin Device for Preparing Tissue for Anastomosis
CN203195731U (en) * 2013-04-19 2013-09-18 瑞奇外科器械(中国)有限公司 Anastomat and nail-anvil assembly

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