技术领域technical field
本实用新型涉及医疗器械技术领域，具体涉及一种外科吻合器。The utility model relates to the technical field of medical instruments, in particular to a surgical stapler.
背景技术Background technique
在外科手术治疗时，常常需要对人体内的一些组织进行缝合或对组织开口进行闭合。例如，在进行外科手术时，首先将部分组织进行缝合，然后将这部分组织进行切除。又例如，在人体内可能会因各种原因形成一些瘘道，瘘道指的是因脓肿引起的连接于体外与有腔器官之间或两个有腔器官之间的病理性排脓管道。例如，肛门直肠瘘是肛肠领域常见的良性疾病，在需要进行手术治疗时，往往最后医生需要手工操作关闭瘘口。现有技术中出现了一些对组织进行缝合或组织开口进行处理的器械，然而，现有的器械的结构往往比较复杂。During surgical treatment, it is often necessary to suture some tissues in the human body or to close tissue openings. For example, when performing a surgical operation, first part of the tissue is sutured, and then this part of the tissue is excised. For another example, some fistula tracts may be formed in the human body due to various reasons. Fistula tracts refer to pathological pus drainage channels connected between the outside body and an organ with a cavity or between two organs with a cavity caused by an abscess. For example, anorectal fistula is a common benign disease in the anorectal field. When surgical treatment is required, the doctor often needs to manually close the fistula. Some instruments for suturing tissues or treating tissue openings have appeared in the prior art. However, the structures of the existing instruments are often relatively complicated.
实用新型内容Utility model content
针对现有技术中的问题，本实用新型的目的在于提供一种结构简单有效的外科吻合器。Aiming at the problems in the prior art, the purpose of the utility model is to provide a surgical stapler with a simple and effective structure.
本实用新型实施例提供一种外科吻合器，包括：The embodiment of the utility model provides a surgical stapler, comprising:
中空的壳体，所述壳体的侧壁开设有窗口；a hollow shell, the side wall of which is provided with a window;
击发件，固定于所述壳体的内部；The firing part is fixed inside the casing;
钉仓，位于所述击发件的近端侧，所述钉仓的内部设置有吻合钉；a staple cartridge, located on the proximal side of the firing member, and staples are arranged inside the staple cartridge;
钉砧，位于所述钉仓的近端侧；a nail anvil located on the proximal side of the staple cartridge;
驱动组件，所述驱动组件至少部分向远端侧方向运动时，所述驱动组件驱动所述钉砧向远端侧方向运动至与所述钉仓相配合后，所述驱动组件通过所述钉砧驱动所述钉仓向远端侧方向运动，以通过所述击发件将所述钉仓中的吻合钉朝向所述钉砧推出。A driving assembly, when at least part of the driving assembly moves toward the distal side, the driving assembly drives the nail anvil to move toward the distal side until it matches with the staple cartridge, and the driving assembly passes through the nail The anvil drives the staple cartridge to move toward the distal side, so as to push the staples in the staple cartridge toward the anvil through the firing member.
在一些实施例中，初始状态下，所述钉砧位于所述窗口的近端侧，所述驱动组件驱动所述钉砧向远端侧方向运动时，所述钉砧运动至所述窗口的远端侧。In some embodiments, in an initial state, the anvil is located at the proximal side of the window, and when the driving assembly drives the anvil to move toward the distal side, the anvil moves to the side of the window distal side.
在一些实施例中，所述击发件的近端侧设置有推钉片和切刀，初始状态下，所述推钉片和所述切刀至少部分进入所述钉仓的内部。In some embodiments, the proximal side of the firing member is provided with a staple pushing piece and a cutter, and in an initial state, the staple pushing piece and the cutting knife at least partly enter the interior of the staple cartridge.
在一些实施例中，所述壳体的内部还固定有沿所述吻合器的轴向延伸的连接件，所述击发件、所述钉仓和所述钉砧依次设置于所述连接件，且所述钉仓和所述钉砧可相对于所述连接件沿所述轴向运动。In some embodiments, a connecting piece extending along the axial direction of the stapler is fixed inside the housing, and the firing member, the staple cartridge and the nail anvil are sequentially arranged on the connecting piece, And the staple cartridge and the staple anvil can move along the axial direction relative to the connecting member.
在一些实施例中，所述壳体的近端设置有近端开口，所述连接件可拆卸地固定于所述壳体的内部。In some embodiments, the proximal end of the housing is provided with a proximal opening, and the connecting member is detachably fixed inside the housing.
在一些实施例中，所述驱动组件包括驱动件和活动把手，所述活动把手枢轴连接于所述驱动件的近端，所述活动把手位于所述壳体的近端侧，且相对于所述壳体可旋转；In some embodiments, the driving assembly includes a driving member and a movable handle, the movable handle is pivotally connected to the proximal end of the driving member, the movable handle is located on the proximal side of the housing, and is opposite to the housing is rotatable;
所述活动把手相对于所述壳体沿第一方向旋转时，驱动所述驱动件向远端侧方向运动，所述驱动件驱动所述钉砧向远端侧方向运动。When the movable handle is rotated in a first direction relative to the housing, the driving member is driven to move toward the distal side, and the driving member drives the anvil to move toward the distal side.
在一些实施例中，所述钉砧包括钉砧本体和齿条部，所述齿条部位于所述钉砧本体的近端侧，所述驱动件的第一表面设置有至少一驱动齿，所述驱动齿与所述齿条部相啮合。In some embodiments, the anvil includes an anvil body and a rack portion, the rack portion is located on the proximal side of the anvil body, the first surface of the driving member is provided with at least one driving tooth, The driving teeth mesh with the rack portion.
在一些实施例中，所述驱动件的第二表面设置有弹性件，所述弹性件给所述驱动齿一朝向所述齿条部的偏置力，所述驱动件的第二表面与所述第一表面相对。In some embodiments, the second surface of the driving member is provided with an elastic member, and the elastic member gives the driving tooth a biasing force toward the rack portion, and the second surface of the driving member is in contact with the second surface of the driving member. The first surface is opposite.
在一些实施例中，所述活动把手沿第二方向旋转复位时，所述活动把手驱动所述驱动件向近端侧方向运动，且所述驱动齿与所述齿条部分离。In some embodiments, when the movable handle is rotated in the second direction to reset, the movable handle drives the driving member to move toward the proximal side, and the driving teeth are separated from the rack part.
在一些实施例中，所述齿条的各个齿的远端面为倾斜的第一引导面，和/或，所述驱动齿的近端面为倾斜的第二引导面。In some embodiments, the distal surface of each tooth of the rack is an inclined first guiding surface, and/or the proximal surface of the driving tooth is an inclined second guiding surface.
在一些实施例中，所述齿条的各个齿的近端面为垂直面，和/或，所述驱动齿的远端面为垂直面。In some embodiments, the proximal surface of each tooth of the rack is a vertical surface, and/or the distal surface of the driving tooth is a vertical surface.
在一些实施例中，还包括固定把手，所述固定把手至少部分位于所述活动把手的远端侧，所述活动把手枢轴连接于所述壳体或所述固定把手。In some embodiments, a fixed handle is also included, the fixed handle is at least partially located on the distal side of the movable handle, the movable handle is pivotally connected to the housing or the fixed handle.
在一些实施例中，所述固定把手的一端连接于所述连接件的近端，或，所述固定把手的一端固定于所述壳体的近端。In some embodiments, one end of the fixed handle is connected to the proximal end of the connecting member, or, one end of the fixed handle is fixed to the proximal end of the housing.
在一些实施例中，所述固定把手朝向所述活动把手的一侧设置有第一配合部和第一偏置件，所述第一偏置件给所述第一配合部一个使其突出于所述固定把手的表面的偏置力，和/或，所述活动把手朝向所述固定把手的一侧设置有第二配合部和第二偏置件，所述第二偏置件给所述第二配合部一个使其突出于所述活动把手的表面的偏置力；In some embodiments, the side of the fixed handle facing the movable handle is provided with a first matching portion and a first biasing member, and the first biasing member gives the first matching portion a protruding The biasing force of the surface of the fixed handle, and/or, the side of the movable handle facing the fixed handle is provided with a second matching portion and a second biasing member, and the second biasing member gives the a biasing force for the second matching portion to protrude from the surface of the movable handle;
所述活动把手沿所述第一方向旋转时，所述活动把手朝向所述固定把手运动，所述第一配合部朝向所述固定把手的内侧缩进，和/或，所述第二配合部朝向所述活动把手的内侧缩进。When the movable handle is rotated in the first direction, the movable handle moves toward the fixed handle, the first matching portion retracts toward the inner side of the fixed handle, and/or, the second matching portion Indent towards the inside of the movable handle.
在一些实施例中，所述壳体朝向所述活动把手的一侧设置有第三配合部和第三偏置件，所述第三偏置件给所述第三配合部一个使其突出于所述壳体的表面的偏置力，和/或，所述活动把手朝向所述壳体的一侧设置有第四配合部和第四偏置件，所述第四偏置件给所述第四配合部一个使其突出于所述活动把手的表面的偏置力；In some embodiments, the housing is provided with a third matching portion and a third biasing member on the side facing the movable handle, and the third biasing member gives the third matching portion a protruding position. The biasing force of the surface of the housing, and/or, the side of the movable handle facing the housing is provided with a fourth matching portion and a fourth biasing member, and the fourth biasing member gives the a biasing force of the fourth matching portion protruding from the surface of the movable handle;
所述活动把手沿所述第一方向旋转时，所述活动把手朝向所述壳体运动，所述第三配合部朝向所述壳体的内侧缩进，和/或，所述第四配合部朝向所述活动把手的内侧缩进。When the movable handle is rotated in the first direction, the movable handle moves toward the housing, the third matching portion retracts toward the inside of the housing, and/or, the fourth matching portion Indent towards the inside of the movable handle.
在一些实施例中，所述钉仓的近端设置有两个沿轴向延伸的止挡件，所述两个止挡件分别连接于所述钉仓的横向两端，或，所述钉砧的远端设置有两个沿轴向延伸的止挡件，所述两个止挡件分别连接于所述钉砧的横向两端。In some embodiments, the proximal end of the staple cartridge is provided with two axially extending stoppers, and the two stoppers are respectively connected to the lateral ends of the staple cartridge, or, the staple The distal end of the anvil is provided with two axially extending stoppers, and the two stoppers are respectively connected to two lateral ends of the anvil.
在一些实施例中，各个所述止挡件的内侧设置有沿轴向延伸的凹槽。In some embodiments, an inner side of each of the stoppers is provided with an axially extending groove.
在一些实施例中，所述钉砧设置有止挡部，所述驱动件设置有卡持部，所述卡持部位于所述止挡部的远端侧，所述驱动件向近端侧方向运动至所述卡持部与所述止挡部抵持后，所述驱动件可驱动所述钉砧向近端侧方向运动。In some embodiments, the anvil is provided with a stopper, the driving member is provided with a clamping part, the clamping part is located on the distal side of the stopper, and the driving member After the clamping portion abuts against the stop portion, the driving member can drive the anvil to move in the proximal direction.
在一些实施例中，所述驱动件通过固定件固定连接于所述钉砧，或，所述驱动件直接固定连接于所述钉砧。In some embodiments, the driving element is fixedly connected to the anvil through a fixing element, or the driving element is directly fixedly connected to the anvil.
本实用新型所提供的外科吻合器具有如下优点：The surgical stapler provided by the utility model has the following advantages:
本实用新型的外科吻合器中，将击发件、钉仓和钉砧从远端侧到近端侧依次设置于壳体的内部，在击发吻合器时，通过驱动组件驱动钉砧向远端侧方向运动，首先完成钉砧和钉仓的闭合，然后通过驱动组件可以驱动钉砧和钉仓均向远端侧方向运动，以使得击发件将钉仓中的吻合钉向钉砧推出，完成吻合器的击发，该外科吻合器结构简单，使用方便，该外科吻合器可以应用于瘘道关闭，也可以用于消化道其他位置的组织缝合或组织开口关闭。In the surgical stapler of the present utility model, the firing member, the nail cartridge and the nail anvil are sequentially arranged inside the housing from the distal side to the proximal side, and when the stapler is fired, the driving assembly drives the nail anvil to the distal side. Direction movement, first complete the closure of the anvil and the staple cartridge, and then drive the anvil and the staple cartridge to move in the direction of the distal side through the driving assembly, so that the firing part pushes the staples in the staple cartridge to the anvil to complete the anastomosis The surgical stapler has a simple structure and is easy to use. The surgical stapler can be used to close the fistula tract, and can also be used for tissue suturing or tissue opening closure at other positions in the digestive tract.
附图说明Description of drawings
通过阅读参照以下附图对非限制性实施例所作的详细描述，本实用新型的其它特征、目的和优点将会变得更明显。Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings.
图1是本实用新型第一实施例的外科吻合器的结构示意图；Fig. 1 is a schematic structural view of a surgical stapler according to the first embodiment of the present invention;
图2是本实用新型第一实施例的外科吻合器的爆炸图；Fig. 2 is an exploded view of the surgical stapler of the first embodiment of the present invention;
图3是本实用新型第一实施例的壳体的结构示意图；Fig. 3 is a schematic structural view of the housing of the first embodiment of the present invention;
图4是本实用新型第一实施例的击发结构的结构示意图；Fig. 4 is a structural schematic diagram of the firing structure of the first embodiment of the utility model;
图5是本实用新型第一实施例的击发结构的主视图；Fig. 5 is a front view of the firing structure of the first embodiment of the utility model;
图6是本实用新型第一实施例的击发件和钉仓配合的示意图；Fig. 6 is a schematic diagram of the cooperation between the firing member and the staple cartridge according to the first embodiment of the present invention;
图7和图8是本实用新型第一实施例的钉砧和驱动件配合的示意图；Fig. 7 and Fig. 8 are the schematic diagrams of the cooperation between the nail anvil and the driving part according to the first embodiment of the present invention;
图9是本实用新型第一实施例的活动把手和固定把手配合的剖视图；Fig. 9 is a cross-sectional view of the cooperation between the movable handle and the fixed handle in the first embodiment of the present invention;
图10是本实用新型第一实施例的握持活动把手时的外科吻合器的结构示意图；Fig. 10 is a schematic structural view of the surgical stapler when holding the movable handle according to the first embodiment of the present invention;
图11是本实用新型第一实施例的闭合时击发结构的主视图；Fig. 11 is a front view of the closing firing structure of the first embodiment of the present invention;
图12是本实用新型第一实施例的闭合时击发结构的结构示意图；Fig. 12 is a structural schematic diagram of the firing structure when closing according to the first embodiment of the present invention;
图13是本实用新型第一实施例的击发时击发结构的结构示意图；Fig. 13 is a structural schematic diagram of the firing structure of the first embodiment of the present invention;
图14是本实用新型第二实施例的外科吻合器的结构示意图；Fig. 14 is a schematic structural view of a surgical stapler according to the second embodiment of the present invention;
图15是本实用新型第三实施例的外科吻合器的结构示意图；Fig. 15 is a schematic structural view of a surgical stapler according to a third embodiment of the present invention;
图16是本实用新型第三实施例的去除壳体后的外科吻合器的示意图；Fig. 16 is a schematic diagram of the surgical stapler with the shell removed according to the third embodiment of the present invention;
图17是本实用新型第三实施例的击发结构的示意图；Fig. 17 is a schematic diagram of the firing structure of the third embodiment of the present invention;
图18是本实用新型第三实施例的握持活动把手时的外科吻合器的结构示意图；Fig. 18 is a schematic structural view of the surgical stapler when holding the movable handle according to the third embodiment of the present invention;
图19是本实用新型第三实施例的固定把手与连接件配合的示意图；Fig. 19 is a schematic diagram of the cooperation between the fixed handle and the connecting piece according to the third embodiment of the present invention;
图20是本实用新型第三实施例的钉砧和驱动件配合的示意图。Fig. 20 is a schematic diagram of the cooperation between the anvil and the driving member according to the third embodiment of the present invention.
附图标记：Reference signs:
1 壳体 4 击发件1 Housing 4 Firing piece
11 窗口 41 推钉片11 window 41 pin pusher
12 第三配合部 42 切刀12 Third mating part 42 Cutter
13 第一枢轴连接部 5 钉仓13 First Pivot Connection 5 Cartridge
14 远端开口 51 钉孔14 Distal opening 51 Nail hole
15 近端开口 52 走刀槽15 Proximal Opening 52 Feed Slot
2 固定把手 53 止挡件2 Fixing handle 53 Stop
21 第一配合部 531 凹槽21 First mating part 531 Groove
22 第一容纳槽 6 钉砧22 First receiving groove 6 Anvil
23 第一弹簧 61 钉砧本体23 First spring 61 Anvil body
24 第五枢轴连接部 62 齿条部24 Fifth pivot joint 62 Rack section
25 套设部 621 齿的远端面25 Distal face of sleeve 621 tooth
3 活动把手 622 齿的近端面3 Proximal face of movable handle 622 teeth
31 第一端 623 止挡部31 first end 623 stop
311 第二枢轴连接部 7 驱动件311 Second pivot connection 7 Drive
312 第三枢轴连接部 71 第四枢轴连接部312 Third pivot connection 71 Fourth pivot connection
32 第二端 72 驱动齿32 Second end 72 Drive tooth
33 第二配合部 73 弹片33 Second mating part 73 Shrapnel
34 第二容纳槽 74 卡持部34 Second receiving groove 74 Clamping part
35 第二弹簧 8 连接件35 Second spring 8 Connecting piece
具体实施方式Detailed ways
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本实用新型将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。在图中相同的附图标记表示相同或类似的结构，因而将省略对它们的重复描述。说明书中的“或”、“或者”均可能表示“和”或者“或”。虽然本说明书中可使用术语“上”、“下”、“之间”等来描述本实用新型的不同示例性特征和元件，但是这些术语用于本文中仅出于方便，例如根据附图中所述的示例的方向。本说明书中的任何内容都不应理解为需要结构的特定三维方向才落入本实用新型的范围内。本说明书中虽然采用“第一”、“第二”、“第三”、“第四”或“第五”等来表示某些特征，但其仅为表示作用，而作为具体特征的数量和重要性的限制。Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully incorporate the concepts of example embodiments. communicated to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted. "Or" and "or" in the specification may mean "and" or "or". Although the terms "upper," "lower," "between," etc. may be used in this specification to describe various exemplary features and elements of the present invention, these terms are used herein for convenience only, for example according to the Directions for the example described. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of structures to fall within the scope of the present invention. Although "first", "second", "third", "fourth" or "fifth" are used in this specification to refer to certain features, they are only used for denotation, and are not used as the number and number of specific features. Significant limitations.
本实用新型提供了一种结构简单有效的外科吻合器，包括中空的壳体、驱动组件以及从远端侧到近端侧依次设置于壳体内部的击发件、钉仓和钉砧。所述壳体的侧壁开设有窗口。所述击发件固定于所述壳体的内部。所述钉仓的内部设置有吻合钉。在手术时，首先将外科吻合器放置于病变位置，将需要吻合的组织通过所述侧壁的窗口拉入到所述壳体内部，使得所述组织位于所述钉砧和所述钉仓之间。驱动所述驱动组件至少部分向远端侧方向运动，所述驱动组件首先驱动所述钉砧向远端侧方向运动至与所述钉仓相配合，将组织夹紧在钉仓和钉砧之间，即完成了钉仓和钉砧的闭合。然后继续驱动所述驱动组件至少部分向远端侧方向运动，所述驱动组件通过所述钉砧驱动所述钉仓向远端侧方向运动，以通过所述击发件将所述钉仓中的吻合钉朝向所述钉砧推出，从而完成吻合器的击发。该外科吻合器通过一套驱动结构(驱动组件、钉砧、钉仓和击发件)即可以完成吻合器的闭合和击发，精简了吻合器的结构，使用更加方便。The utility model provides a surgical stapler with a simple and effective structure, which comprises a hollow shell, a driving assembly, and a firing member, a nail magazine and an anvil which are sequentially arranged inside the shell from the distal side to the proximal side. A window is opened on the side wall of the housing. The firing member is fixed inside the casing. Staples are arranged inside the staple cartridge. During the operation, the surgical stapler is first placed on the lesion, and the tissue to be stapled is pulled into the casing through the window of the side wall, so that the tissue is located between the anvil and the staple cartridge between. Driving the driving assembly to at least partially move toward the distal side, the driving assembly first drives the anvil to move toward the distal side to match the staple cartridge, and clamps the tissue between the staple cartridge and the staple anvil During this time, the closing of the nail bin and the nail anvil is completed. Then continue to drive the driving assembly to at least partially move toward the distal side, and the driving assembly drives the nail cartridge to move toward the distal side through the nail anvil, so as to drive the nail cartridge in the nail cartridge through the firing member. The staples are pushed out toward the anvil, thereby completing the firing of the stapler. The surgical stapler can complete the closing and firing of the stapler through a set of driving structure (drive assembly, nail anvil, staple cartridge and firing member), which simplifies the structure of the stapler and makes it more convenient to use.
下面结合附图详细介绍本实用新型各个具体实施例的外科吻合器的结构，可以理解的是，各个具体实施例不作为本实用新型的保护范围的限制。The structure of the surgical stapler of each specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that each specific embodiment is not intended to limit the scope of protection of the present invention.
如图1～8所示，本实用新型的第一实施例提供了一种结构简单有效的外科吻合器，包括中空的壳体1以及从远端侧到近端侧依次设置于壳体1内部的击发件4、钉仓5、钉砧6和驱动组件。所述壳体1的内部固定有沿轴向延伸的两个连接件8，两个连接件8相对于吻合器的轴心对称设置。所述击发件4、钉仓5和钉砧6的横向两端依次套设于所述连接件8，其中，击发件4固定于连接件8的远端，而无法有轴向移动，钉仓5和钉砧6则可以连接件8为导轨沿轴向运动。在其他实施方式中，所述连接件8也可以是可拆卸固定于所述壳体1的内部，所述连接件8的数量也不限于2个，也可以为1个或其他数量。图4中示例性地将连接件8与壳体1分离，以更清楚地示出连接件8与其他结构的配合。As shown in Figures 1 to 8, the first embodiment of the present utility model provides a simple and effective surgical stapler, including a hollow shell 1 and sequentially arranged inside the shell 1 from the distal side to the proximal side. The firing part 4, the nail bin 5, the nail anvil 6 and the drive assembly. Two connecting pieces 8 extending in the axial direction are fixed inside the housing 1 , and the two connecting pieces 8 are arranged symmetrically with respect to the axis of the stapler. The lateral ends of the firing member 4, the nail cartridge 5 and the nail anvil 6 are sequentially sleeved on the connecting member 8, wherein the firing member 4 is fixed on the distal end of the connecting member 8, and cannot move axially. 5 and nail anvil 6 then can connect piece 8 to move axially for guide rail. In other embodiments, the connecting piece 8 may also be detachably fixed inside the housing 1 , and the number of the connecting piece 8 is not limited to two, and may also be one or other numbers. In FIG. 4 , the connecting piece 8 is exemplarily separated from the housing 1 to more clearly show the cooperation between the connecting piece 8 and other structures.
在本实用新型中，远端侧和近端侧是相对于操作者来说的，距离操作者较近的一端为近端侧，距离操作者较远的一端，即更靠近手术位置的一端为远端侧。图1中S1方向即为由近端侧至远端侧方向。定义S1方向或与S1方向相反的方向为吻合器的轴向，定义S2方向为吻合器的纵向，定义垂直于S1方向和S2方向的S3方向为吻合器的横向。在本实用新型中，对于一个部件来说，内侧和外侧是相对于该部件的轴心来说的，靠近轴心的一侧为内侧，远离轴心的一侧为外侧。In the present utility model, the distal side and the proximal side are relative to the operator, the end closer to the operator is the proximal side, and the end farther away from the operator, that is, the end closer to the operation position is distal side. The S1 direction in FIG. 1 is the direction from the proximal side to the distal side. Define the S1 direction or the direction opposite to the S1 direction as the axial direction of the stapler, define the S2 direction as the longitudinal direction of the stapler, and define the S3 direction perpendicular to the S1 direction and the S2 direction as the stapler's transverse direction. In the present invention, for a component, the inside and the outside are relative to the axis of the component, the side close to the axis is the inside, and the side away from the axis is the outside.
如图1～3所示，所述壳体1为管状或近似于管状的形状，且所述壳体1的侧壁开设有窗口11。在初始状态下，所述钉砧6位于所述窗口11的近端侧，所述钉仓5位于所述窗口11的远端侧，这样，在消化道组织的吻合过程中，吻合器贴合组织的自然生长形态，所述窗口11贴近待吻合的组织，更易于把待吻合的组织拉入位于所述壳体1侧壁的所述窗口11中，在吻合过后的组织更接近于人体组织的自然形态，不会造成术后的异物感等不适。如图2所示，所述吻合器的远端设置有远端开口14，所述远端开口14避免在所述吻合器放置入组织时，吻合器的远端与组织腔体之间形成密闭的空间，避免消化道内部正常的分泌的气体液体及内容物造成的影响。如图3所示，所述吻合器的近端设置有近端开口15，操作者可以通过近端开口15观察壳体1内部。As shown in FIGS. 1-3 , the casing 1 is in a tubular shape or a shape close to a tubular shape, and a window 11 is opened on a side wall of the casing 1 . In the initial state, the anvil 6 is located at the proximal side of the window 11, and the staple cartridge 5 is located at the distal side of the window 11, so that during the anastomosis of the digestive tract tissue, the stapler fits The natural growth form of the tissue, the window 11 is close to the tissue to be anastomosed, and it is easier to pull the tissue to be anastomosed into the window 11 located on the side wall of the housing 1, and the tissue after anastomosis is closer to the human tissue The natural shape will not cause discomfort such as foreign body sensation after surgery. As shown in Fig. 2, the distal end of the stapler is provided with a distal opening 14, and the distal opening 14 prevents airtight formation between the distal end of the stapler and the tissue cavity when the stapler is placed into the tissue To avoid the influence of normal secreted gas, liquid and contents in the digestive tract. As shown in FIG. 3 , the proximal end of the stapler is provided with a proximal opening 15 through which the operator can observe the interior of the casing 1 .
如图4～6所示，所述击发件4通过所述连接件8固定于所述壳体1的内部，所述击发件4的近端侧设置有推钉片41和切刀42。所述钉仓5的内部设置有吻合钉，所述钉仓5的近端面设置有多个钉孔51和走刀槽52。初始状态下，所述击发件4的推钉片41和所述切刀42从所述钉仓5的远端至少部分进入所述钉仓5的内部。吻合器击发时，钉仓5向远端侧方向运动，以使得击发件4的推钉片41和切刀42进一步进入到钉仓5的内部，将吻合钉和切刀42向钉砧6推出。As shown in FIGS. 4 to 6 , the firing member 4 is fixed inside the casing 1 through the connecting member 8 , and a nail pushing piece 41 and a cutting knife 42 are provided on the proximal side of the firing member 4 . The interior of the staple cartridge 5 is provided with staples, and the proximal surface of the staple cartridge 5 is provided with a plurality of staple holes 51 and knife feed grooves 52 . In an initial state, the nail pushing piece 41 of the firing member 4 and the cutter 42 at least partly enter the interior of the staple cartridge 5 from the distal end of the staple cartridge 5 . When the stapler is fired, the staple cartridge 5 moves toward the distal side, so that the staple pushing piece 41 and the cutter 42 of the firing member 4 further enter the interior of the staple cartridge 5, and the staples and the cutter 42 are pushed out toward the anvil 6 .
如图6所示，所述钉仓5的近端设置有两个止挡件53，所述两个止挡件53分别连接于所述钉仓5的横向两端，且所述两个止挡件53从所述钉仓5的近端面沿所述吻合器的轴向向近端侧方向延伸，在吻合器闭合时可以将组织限定在两个止挡件53之间，通过两个止挡件53防止组织外溢。所述两个止挡件53分别位于所述两个连接件8的内侧。在另一实施方式中，也可以在所述钉砧6的远端设置两个止挡件，两个止挡件分别连接于所述钉砧6的横向两端，两个止挡件从所述钉砧6的远端面沿所述轴向向远端侧方向延伸，同样可以实现防止组织外溢。进一步地，各个所述止挡件53的内侧设置有沿轴向延伸的凹槽531，以提高对组织的夹持效果。As shown in Figure 6, two stoppers 53 are provided at the proximal end of the staple cartridge 5, and the two stoppers 53 are respectively connected to the lateral ends of the staple cartridge 5, and the two stoppers The stopper 53 extends from the proximal surface of the staple cartridge 5 to the proximal side along the axial direction of the stapler. When the stapler is closed, the tissue can be confined between the two stoppers 53. Stopper 53 prevents tissue spillage. The two stoppers 53 are respectively located inside the two connecting pieces 8 . In another embodiment, two stoppers can also be set at the far end of the nail anvil 6, and the two stoppers are respectively connected to the two lateral ends of the nail anvil 6, and the two stoppers are separated from the two ends of the nail anvil 6. The distal surface of the anvil 6 extends along the axial direction to the distal side, which can also prevent tissue overflow. Further, an axially extending groove 531 is provided on the inner side of each of the stoppers 53 to improve the clamping effect on the tissue.
如图4～7所示，所述驱动组件包括驱动件7和活动把手3，所述活动把手3位于所述壳体1的近端侧。所述壳体的近端设有第一枢轴连接部13，所述活动把手3的第一端31设置有第二枢轴连接部311和第三枢轴连接部312，所述驱动件7的近端包括第四枢轴连接部71。所述活动把手3的第二枢轴连接部311枢轴连接到壳体1的第一枢轴连接部13上，且所述活动把手3与所述壳体1为可拆卸连接，在需要时可以将所述活动把手3从所述壳体1的近端拆除。所述活动把手3的第二端32为握持端，供操作者握持使用。所述壳体1的近端还设置有固定把手2，所述固定把手2位于所述活动把手3的远端侧，所述固定把手2与所述壳体1一体成型或所述固定把手2的一端固定于所述壳体1。所述活动把手3被握持时，所述活动把手3沿第一方向旋转而靠近所述固定把手2，所述第三枢轴连接部312驱动所述第四枢轴连接部71，使得所述驱动件7向远端侧方向运动。所在图1的视角中，第一方向为顺时针方向。与第一方向相反的第二方向为逆时针方向。As shown in FIGS. 4-7 , the driving assembly includes a driving member 7 and a movable handle 3 , and the movable handle 3 is located at the proximal side of the housing 1 . The proximal end of the housing is provided with a first pivotal connection part 13, the first end 31 of the movable handle 3 is provided with a second pivotal connection part 311 and a third pivotal connection part 312, and the driving member 7 The proximal end includes a fourth pivot connection 71 . The second pivotal connection part 311 of the movable handle 3 is pivotally connected to the first pivotal connection part 13 of the housing 1, and the movable handle 3 is detachably connected to the housing 1, when needed The movable handle 3 can be removed from the proximal end of the housing 1 . The second end 32 of the movable handle 3 is a holding end for the operator to hold and use. The proximal end of the housing 1 is also provided with a fixed handle 2, the fixed handle 2 is located on the distal side of the movable handle 3, the fixed handle 2 is integrally formed with the housing 1 or the fixed handle 2 One end is fixed to the housing 1. When the movable handle 3 is held, the movable handle 3 rotates in the first direction and approaches the fixed handle 2, and the third pivotal connection part 312 drives the fourth pivotal connection part 71, so that the movable handle 3 The driving member 7 moves in the direction of the distal end. In the viewing angle of FIG. 1 , the first direction is clockwise. The second direction opposite to the first direction is the counterclockwise direction.
如图7和图8所示，所述钉砧6包括钉砧本体61和齿条部62，所述齿条部62位于所述钉砧本体61的近端侧，所述钉砧6的远端面即为与所述钉仓5相对的钉砧面，所述齿条部62朝向所述驱动件7的一侧表面设置有齿面。所述驱动件7朝向所述钉砧6的第一表面设置有至少一个驱动齿72，所述驱动齿72与所述齿条部62相啮合。所述驱动件7向远端侧方向运动时，通过所述驱动齿72与所述齿条部62的齿啮合，驱动所述齿条部62向远端侧方向运动。如图7和图8所示，所述齿条部62的各个齿的近端面622为垂直面，所述驱动齿72的远端面为垂直面，提高在吻合器击发时驱动齿72和齿条部62配合的稳定性，并且更好地将驱动力传递给齿条部62。所述齿条部62的各个齿的远端面621为倾斜的第一引导面，所述驱动齿72的近端面为倾斜的第二引导面。所述活动把手3沿第二方向旋转复位时，所述活动把手3驱动所述驱动件7向近端侧方向运动，在所述第一引导面和所述第二引导面的引导作用下，所述驱动齿72与所述齿条部62分离，而使得钉砧6可以保持不动。As shown in FIGS. 7 and 8 , the anvil 6 includes an anvil body 61 and a rack portion 62 , the rack portion 62 is located on the proximal side of the anvil body 61 , and the anvil 6 is located at the far end. The end surface is the anvil surface opposite to the staple cartridge 5 , and the side surface of the rack portion 62 facing the driving member 7 is provided with a tooth surface. The first surface of the driving member 7 facing the anvil 6 is provided with at least one driving tooth 72 , and the driving tooth 72 is engaged with the rack portion 62 . When the driving member 7 moves toward the distal side, the rack portion 62 is driven to move toward the distal side through the meshing of the driving teeth 72 with the teeth of the rack portion 62 . As shown in FIGS. 7 and 8 , the proximal surface 622 of each tooth of the rack portion 62 is a vertical surface, and the distal surface of the driving tooth 72 is a vertical surface. The stability of the fit of the rack portion 62 is improved, and the driving force is better transmitted to the rack portion 62 . The distal surface 621 of each tooth of the rack portion 62 is an inclined first guiding surface, and the proximal surface of the driving tooth 72 is an inclined second guiding surface. When the movable handle 3 is rotated in the second direction to reset, the movable handle 3 drives the driving member 7 to move toward the proximal direction, and under the guidance of the first guide surface and the second guide surface, The drive teeth 72 are separated from the rack portion 62 so that the anvil 6 can remain stationary.
进一步地，如图7和图8所示，所述驱动件7的第二表面设置有弹性件，所述弹性件给所述驱动齿72一朝向所述齿条部62的偏置力，所述驱动件7的第二表面与所述第一表面相对，在图7和图8的视角中，所述驱动件7的第一表面为下表面，第二表面为上表面。通过所述弹性件可以保持在击发过程中驱动齿72与齿条部62始终处于啮合状态，不易脱开。在该实施例中，所述弹性件为弹片73，所述弹片73的两端固定于所述驱动件7的第二表面，所述弹片73的弹性部抵持于所述壳体1的内壁。但本实用新型不限于此，在其他可替代的实施方式中，所述弹性件也可以为弹簧、弹性垫等其他弹性结构。Further, as shown in FIG. 7 and FIG. 8, the second surface of the driving member 7 is provided with an elastic member, and the elastic member gives the driving tooth 72 a biasing force toward the rack portion 62, so The second surface of the driving member 7 is opposite to the first surface. In the perspective of FIG. 7 and FIG. 8 , the first surface of the driving member 7 is the lower surface, and the second surface is the upper surface. The elastic member can keep the driving tooth 72 and the rack portion 62 always in a meshing state during the firing process, and is not easy to disengage. In this embodiment, the elastic member is an elastic piece 73, the two ends of the elastic piece 73 are fixed on the second surface of the driving member 7, and the elastic part of the elastic piece 73 is against the inner wall of the housing 1 . But the utility model is not limited thereto, and in other alternative implementation manners, the elastic member can also be other elastic structures such as springs and elastic pads.
如图9所示，所述固定把手2朝向所述活动把手3的一侧设置有第一配合部21和第一偏置件，所述第一偏置件给所述第一配合部21一个使其突出于所述固定把手2的表面的偏置力。所述固定把手2设置有第一容纳槽22，可以容纳受力而向内缩进的第一配合部21。所述活动把手3朝向所述固定把手2的一侧设置有第二配合部33和第二偏置件，所述第二偏置件给所述第二配合部33一个使其突出于所述活动把手3的表面的偏置力。所述活动把手3设置有第二容纳槽34，可以容纳受力而向内缩进的第二配合部33。在该实施例中，所述第一偏置件为设置于第一容纳槽中的第一弹簧23，所述第二偏置件为设置于所述第二容纳槽34中的第二弹簧35，但本实用新型不限于此。所述第一偏置件和所述第二偏置件还可以为弹片、弹性垫等其他弹性结构。As shown in FIG. 9 , the side of the fixed handle 2 facing the movable handle 3 is provided with a first matching portion 21 and a first biasing member, and the first biasing member gives the first matching portion 21 a A biasing force that makes it protrude beyond the surface of the fixed handle 2. The fixed handle 2 is provided with a first accommodating groove 22, which can accommodate the first matching portion 21 retracted inwardly under force. The side of the movable handle 3 facing the fixed handle 2 is provided with a second matching portion 33 and a second biasing member, and the second biasing member gives the second matching portion 33 a protruding position beyond the The biasing force of the surface of the movable handle 3. The movable handle 3 is provided with a second accommodating groove 34, which can accommodate the second matching portion 33 retracted inwardly under force. In this embodiment, the first biasing member is the first spring 23 arranged in the first receiving groove, and the second biasing member is the second spring 35 arranged in the second receiving groove 34 , but the utility model is not limited thereto. The first biasing member and the second biasing member may also be other elastic structures such as shrapnels and elastic pads.
初始状态下，在所述第一弹簧23的作用下，所述第一配合部21至少部分突出于所述固定把手2的近端侧面，在所述第二弹簧35的作用下，所述第二配合部33至少部分突出于所述活动把手3的远端侧面，且所述第一配合部21和所述第二配合部33相互抵持，可以对所述活动把手3的初始位置进行限定。在所述活动把手3被握持而沿所述第一方向旋转时，所述活动把手3朝向所述固定把手2运动，所述第一配合部21和所述第二配合部33相互作用，使得所述第一配合部21朝向所述固定把手2的内侧缩进到第一容纳槽22中，所述第一弹簧23发生弹性变形，所述第二配合部33朝向所述活动把手3的内侧缩进到第二容纳槽34中，所述第二弹簧35发生弹性变形。在松开所述活动把手3后，在所述第一弹簧23和所述第二弹簧35的弹性变形恢复力作用下，所述第一配合部21和所述第二配合部33向外运动，在所述第一配合部21和所述第二配合部33的抵持作用下，所述活动把手3沿第二方向旋转而返回到初始位置，实现活动把手3的复位。In the initial state, under the action of the first spring 23, the first matching portion 21 at least partially protrudes from the proximal side of the fixed handle 2, and under the action of the second spring 35, the first matching portion 21 The two matching parts 33 at least partly protrude from the distal side of the movable handle 3, and the first matching part 21 and the second matching part 33 resist each other, which can define the initial position of the movable handle 3 . When the movable handle 3 is held and rotated along the first direction, the movable handle 3 moves toward the fixed handle 2, the first matching portion 21 and the second matching portion 33 interact, The first matching portion 21 is retracted into the first receiving groove 22 toward the inner side of the fixed handle 2, the first spring 23 is elastically deformed, and the second matching portion 33 faces toward the movable handle 3. The inner side is retracted into the second receiving groove 34, and the second spring 35 is elastically deformed. After the movable handle 3 is released, under the action of the elastic deformation restoring force of the first spring 23 and the second spring 35, the first fitting part 21 and the second fitting part 33 move outward , under the abutment effect of the first matching portion 21 and the second matching portion 33 , the movable handle 3 rotates in the second direction and returns to the initial position, realizing the reset of the movable handle 3 .
在另一实施方式中，也可以只设置第一配合部21，而不设置第二配合部33，在初始状态下，第一配合部21抵持于活动把手3的远端面。握持活动把手3时，活动把手3作用于第一配合部21，而使得第一配合部21向内缩进，松开活动把手3后，通过第一配合部21向外的抵持作用，实现活动把手3的复位。在再一实施方式中，也可以只设置第二配合部33，而不设置第一配合部21，在初始状态下，第二配合部23抵持于固定把手2的近端面。在握持活动把手3时，固定把手2作用于第二配合部33，而使得第二配合部33向内缩进，松开活动把手3后，通过第二配合部33向外的抵持作用，实现活动把手3的复位。In another embodiment, only the first matching portion 21 may be provided without the second matching portion 33 , and in the initial state, the first matching portion 21 abuts against the distal surface of the movable handle 3 . When holding the movable handle 3, the movable handle 3 acts on the first matching part 21, so that the first matching part 21 is retracted inwardly, and after the movable handle 3 is released, the outward resistance of the first matching part 21, Realize the reset of movable handle 3. In yet another embodiment, only the second matching portion 33 may be provided without the first matching portion 21 , and in the initial state, the second matching portion 23 abuts against the proximal surface of the fixed handle 2 . When holding the movable handle 3, the fixed handle 2 acts on the second matching part 33, so that the second matching part 33 is retracted inwardly. Realize the reset of movable handle 3.
在该实施例中，所述钉砧6具有第一位置和第二位置，第二位置在第一位置的远端侧。所述第一位置和所述第二位置分别位于所述窗口11的近端侧和远端侧。其中，第一位置指的是所述钉砧6的初始位置，第二位置指的是钉砧6运动到与钉仓5夹紧组织的闭合位置。如图1～5所示，在初始状态下，所述钉砧6处于远离所述钉仓5的第一位置。所述钉仓5位于所述窗口11的远端侧。所述第一配合部21突出于所述固定把手2的近端侧表面，所述第二配合部33突出于所述活动把手3的远端侧表面，且与第一配合部21相抵持。所述活动把手3处于远离固定把手2的初始位置。In this embodiment, said anvil 6 has a first position and a second position, the second position being distal to the first position. The first position and the second position are located on the proximal side and the distal side of the window 11, respectively. Wherein, the first position refers to the initial position of the anvil 6 , and the second position refers to the closed position where the anvil 6 moves to clamp the tissue with the staple cartridge 5 . As shown in FIGS. 1-5 , in an initial state, the anvil 6 is in a first position away from the staple cartridge 5 . The staple cartridge 5 is located at the distal side of the window 11 . The first matching portion 21 protrudes from the proximal side surface of the fixed handle 2 , and the second matching portion 33 protrudes from the distal side surface of the movable handle 3 and abuts against the first matching portion 21 . The movable handle 3 is in an initial position away from the fixed handle 2 .
在手术时，首先将外科吻合器放置于病变位置，将需要吻合的组织通过所述侧壁的窗口11拉入到所述壳体1内部，使得所述组织位于所述钉砧6和所述钉仓5之间。此时握持活动把手3，使得活动把手3沿第一方向旋转。如图10所示，所述第二配合部33与所述第一配合部21相抵持，所述第一配合部21向固定把手2内部缩进，所述第二配合部33向活动把手3内部缩进，此时第一配合部21缩进到第一容纳槽22的内部，第二配合部33缩进到第二容纳槽34的内部。在此过程中，所述活动把手3驱动所述驱动件7向远端侧方向运动，驱动件7首先驱动所述钉砧6向远端侧方向运动一个行程。然后，松开活动把手3，在第一弹簧23和第二弹簧35的作用下，活动把手3又恢复到初始位置，并带动驱动件7向近端侧方向运动，在第一引导面和第二引导面的引导作用下，所述驱动齿72与所述齿条部62分离，所述钉砧6保持在当前位置。再次握持活动把手3时，活动把手3再次通过驱动件7驱动钉砧6向远端侧方向运动一个行程。如此往复几个行程后，钉砧6向远端侧方向运动而到达第二位置，即如图11和图12所示，钉砧6与所述钉仓5相配合，将组织夹紧在钉仓5和钉砧6之间，完成了吻合器的闭合。此处钉砧6与钉仓5相配合即指的是钉砧6和钉仓5将组织夹紧后，钉砧6向远端侧方向运动时可以驱动钉仓5向远端侧方向运动的联动状态。此处活动把手3每次握持而驱动钉砧6运动的行程的长度与闭合吻合器需要的握持次数有关。例如，第一位置和第二位置之间的距离为L0，活动把手3每次握持而驱动钉砧6向远端侧方向运动的单次行程的长度为L1，则闭合吻合器需要的握持次数等于L0/L1。在L1小于L0时，需要多次握持将吻合器闭合，在L1等于L0时，一次握持即可将吻合器闭合，在L1大于L0时，活动把手3未握持到底时，即可完成吻合器的闭合。During the operation, the surgical stapler is first placed on the lesion, and the tissue to be anastomosed is pulled into the interior of the housing 1 through the window 11 of the side wall, so that the tissue is located between the anvil 6 and the anvil 6 . Between 5 staple bins. At this time, the movable handle 3 is held, so that the movable handle 3 rotates along the first direction. As shown in FIG. 10 , the second matching portion 33 is opposed to the first matching portion 21 , the first matching portion 21 is retracted toward the inside of the fixed handle 2 , and the second matching portion 33 is retracted toward the movable handle 3 . The inside is retracted. At this time, the first matching portion 21 is retracted into the first receiving groove 22 , and the second matching portion 33 is retracted into the second receiving groove 34 . During this process, the movable handle 3 drives the driving member 7 to move toward the distal end side, and the driving member 7 firstly drives the anvil 6 to move toward the distal end side by a stroke. Then, loosen the movable handle 3, under the action of the first spring 23 and the second spring 35, the movable handle 3 returns to the initial position again, and drives the driving member 7 to move toward the proximal side direction, on the first guide surface and the second Under the guidance of the two guide surfaces, the driving teeth 72 are separated from the rack portion 62, and the anvil 6 remains at the current position. When the movable handle 3 is held again, the movable handle 3 drives the anvil 6 to move a stroke in the direction of the distal end through the driver 7 again. After reciprocating several strokes in this way, the nail anvil 6 moves toward the distal side to reach the second position, that is, as shown in Figures 11 and 12, the nail anvil 6 cooperates with the nail cartridge 5 to clamp the tissue on the nail Between the warehouse 5 and the anvil 6, the closing of the stapler is completed. Here, the cooperation between the anvil 6 and the staple cartridge 5 means that after the anvil 6 and the staple cartridge 5 clamp the tissue, the anvil 6 can drive the staple cartridge 5 to move toward the distal side when it moves toward the distal side. linkage status. Here the movable handle 3 is gripped each time to drive the anvil 6 to move. The length of the stroke is related to the number of grips needed to close the stapler. For example, the distance between the first position and the second position is L0, and the length of a single stroke that drives the nail anvil 6 to move toward the distal side is L1 when the movable handle 3 is gripped each time, then the grip required by the closed stapler is L1. The number of holdings is equal to L0/L1. When L1 is less than L0, it needs to be held multiple times to close the stapler. When L1 is equal to L0, the stapler can be closed by holding it once. When L1 is greater than L0, it can be completed when the movable handle 3 is not held to the end. Closure of the stapler.
在吻合器闭合后，再次握持活动把手3或者继续握持活动把手3，活动把手3推动驱动件7向远端侧方向运动，所述驱动件7通过所述钉砧6驱动所述钉仓5向远端侧方向运动，如图13所示，由于所述击发件4固定不动，所述击发件4的推钉片41和切刀42进一步进入到所述钉仓5的内部，以通过所述推钉片41将所述钉仓5中的吻合钉朝向所述钉砧6推出，缝合在组织上，并在钉砧6的钉砧面上成型，且所述切刀42从钉仓5的走刀槽52中穿出而到达钉砧6的钉砧面，切割组织，从而完成吻合器的击发。因此，该外科吻合器通过一套驱动结构即可以完成吻合器的闭合和击发，精简了吻合器的结构，使用更加方便。After the stapler is closed, hold the movable handle 3 again or continue to hold the movable handle 3, the movable handle 3 pushes the driving member 7 to move toward the distal side, and the driving member 7 drives the staple cartridge through the nail anvil 6 5 moves toward the distal side, as shown in FIG. 13 , since the firing member 4 is fixed, the pusher piece 41 and the cutter 42 of the firing member 4 further enter the interior of the staple cartridge 5 to The staples in the staple bin 5 are pushed out toward the anvil 6 by the pusher piece 41, sutured on the tissue, and formed on the anvil surface of the anvil 6, and the cutter 42 is removed from the staple The knife-feeding slot 52 of the magazine 5 passes through to reach the anvil surface of the anvil 6 to cut the tissue, thereby completing the firing of the stapler. Therefore, the surgical stapler can complete the closing and firing of the stapler through a set of driving structures, which simplifies the structure of the stapler and is more convenient to use.
如图14所示，为本实用新型第二实施例的外科吻合器的结构示意图。该实施例与第一实施例的区别在于，所述活动把手3的第二枢轴连接部311不可拆卸地连接于所述壳体1的第一枢轴连接部13。所述壳体1朝向所述活动把手3的一侧设置有第三配合部12和第三偏置件，所述第三偏置件给所述第三配合部12一个使其突出于所述壳体1的近端侧表面的偏置力，所述壳体1朝向所述活动把手3的一侧设置有第三容纳槽(图中未示出)。初始状态下，所述第三配合部12突出于所述壳体1的近端侧表面而抵持于所述活动把手3的远端面。握持所述活动把手3时，所述活动把手3朝向所述壳体1运动，所述活动把手3压迫所述第三配合部12，使得第三配合部12进入到第三容纳槽中，且驱动第三偏置件发生变形。松开活动把手3后，在第三偏置件的变形恢复力作用下，驱动第三配合部12再次突出于所述壳体1的近端侧表面，并驱动活动把手3沿第二方向旋转复位。所述第三偏置件可以为设置于第三容纳槽中的弹簧、弹片、弹性垫等。As shown in FIG. 14 , it is a schematic structural view of a surgical stapler according to the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the second pivot connection part 311 of the movable handle 3 is non-detachably connected to the first pivot connection part 13 of the housing 1 . The side of the housing 1 facing the movable handle 3 is provided with a third matching portion 12 and a third biasing member, and the third biasing member gives the third matching portion 12 a protruding position above the The biasing force of the proximal side surface of the housing 1, the housing 1 is provided with a third receiving groove (not shown in the figure) on the side facing the movable handle 3 . In an initial state, the third matching portion 12 protrudes from the proximal surface of the housing 1 and abuts against the distal surface of the movable handle 3 . When the movable handle 3 is held, the movable handle 3 moves toward the housing 1, and the movable handle 3 presses the third matching portion 12, so that the third matching portion 12 enters the third receiving groove, And the third biasing member is driven to be deformed. After the movable handle 3 is loosened, under the action of the deformation restoring force of the third biasing member, the third matching portion 12 is driven to protrude from the proximal side surface of the housing 1 again, and the movable handle 3 is driven to rotate in the second direction reset. The third biasing member may be a spring, a shrapnel, an elastic pad and the like arranged in the third receiving groove.
在另一实施方式中，所述活动把手3朝向所述壳体1的一侧也可以设置有第四配合部和第四偏置件，所述活动把手3朝向所述壳体1的一侧设置容纳所述第四配合部的第四容纳槽。所述第四偏置件给所述第四配合部一个使其突出于所述活动把手3的远端侧表面的偏置力。初始状态下，所述第四配合部突出于所述活动把手3的远端侧表面而抵持于所述第三配合部12。握持所述活动把手3时，所述活动把手3沿所述第一方向旋转，所述活动把手3朝向所述壳体1运动，所述第三配合部12朝向所述壳体1的内侧缩进，所述第四配合部朝向所述活动把手3的内侧缩进。松开活动把手3后，在第三偏置件和第四偏置件的变形恢复力作用下，驱动活动把手3沿第二方向旋转复位。所述第四偏置件可以为设置于第四容纳槽中的弹簧、弹片、弹性垫等。In another embodiment, the side of the movable handle 3 facing the housing 1 may also be provided with a fourth matching portion and a fourth biasing member, and the movable handle 3 is facing the side of the housing 1 A fourth accommodating groove for accommodating the fourth matching portion is provided. The fourth biasing member gives the fourth matching portion a biasing force to protrude from the side surface of the distal end of the movable handle 3 . In an initial state, the fourth matching portion protrudes from the distal side surface of the movable handle 3 and abuts against the third matching portion 12 . When the movable handle 3 is held, the movable handle 3 rotates along the first direction, the movable handle 3 moves toward the housing 1 , and the third matching portion 12 faces the inner side of the housing 1 Indentation, the fourth matching portion is indented toward the inner side of the movable handle 3 . After the movable handle 3 is released, the movable handle 3 is driven to rotate and reset in the second direction under the action of the deformation restoring force of the third biasing member and the fourth biasing member. The fourth biasing member may be a spring, a shrapnel, an elastic pad and the like arranged in the fourth receiving groove.
如图15～20所示，为本实用新型第三实施例的外科吻合器的结构示意图。该实施例与第一实施例的区别在于，所述固定把手2的一端未固定于壳体1，而是通过套设部25套设于连接件8的近端，并且所述连接件8与所述壳体1为可拆卸连接，所述活动把手3的第二枢轴连接部311枢轴连接于所述固定把手2的第五枢轴连接部24。通过该种结构，可以通过壳体1的近端开口15将连接件8、击发件4、钉仓5、钉砧6、固定把手2和活动把手3一起与壳体1分离。在使用时，可以先将连接件8、击发件4、钉仓5、钉砧6、固定把手2和活动把手3整体从壳体1中取出，留有更多的空间方便医生操作。并且也方便在手术后更换其中的部分或全部部件。As shown in FIGS. 15-20 , they are schematic structural views of a surgical stapler according to a third embodiment of the present invention. The difference between this embodiment and the first embodiment is that one end of the fixed handle 2 is not fixed to the housing 1, but is sleeved on the proximal end of the connecting piece 8 through the sleeve part 25, and the connecting piece 8 is connected to the The housing 1 is detachably connected, and the second pivot connection portion 311 of the movable handle 3 is pivotally connected to the fifth pivot connection portion 24 of the fixed handle 2 . With this structure, the connecting member 8 , the firing member 4 , the staple cartridge 5 , the anvil 6 , the fixed handle 2 and the movable handle 3 can be separated from the housing 1 through the proximal opening 15 of the housing 1 . When in use, the connecting piece 8, the firing piece 4, the staple bin 5, the anvil 6, the fixed handle 2 and the movable handle 3 can be taken out of the housing 1 as a whole, leaving more space for doctors to operate. And it is also convenient to replace some or all of the parts after the operation.
如图20所示，该第三实施例中还增加了钉砧6的回退机构。具体地，所述钉砧6设置有止挡部623，所述止挡部623设置于所述齿条部62的近端一侧，所述驱动件7设置有卡持部74，所述卡持部74设于所述驱动件7的远端一侧，且所述卡持部74位于所述止挡部623的远端侧。在吻合器击发完成后，驱动所述驱动件7向近端侧方向运动，使得所述驱动件7运动至所述卡持部74与所述止挡部623抵持后，所述驱动件7可驱动所述钉砧6向近端侧方向运动，从而实现钉砧6和钉仓5的分离。As shown in FIG. 20 , a retracting mechanism of the anvil 6 is also added in the third embodiment. Specifically, the anvil 6 is provided with a stopper 623, and the stopper 623 is arranged on the proximal side of the rack part 62, and the driving member 7 is provided with a clamping part 74, and the clamping The holding portion 74 is disposed on a distal side of the driving member 7 , and the locking portion 74 is located on a distal side of the stop portion 623 . After the firing of the stapler is completed, the driving member 7 is driven to move in the direction of the proximal end, so that the driving member 7 moves until the clamping portion 74 abuts against the stopper portion 623, and the driving member 7 The nail anvil 6 can be driven to move in the proximal direction, so as to realize the separation of the nail anvil 6 and the nail cartridge 5 .
上述各个实施例中，所述驱动件和所述钉砧通过驱动齿和齿条部配合，实现驱动件对钉砧的驱动。在另一实施方式中，所述驱动件也可以通过固定件固定连接于所述钉砧，例如通过卡接等方式，或，所述驱动件直接固定连接于所述钉砧，由此，在握持活动把手沿第一方向旋转时，所述驱动件被驱动向远端侧方向运动时，所述驱动件直接驱动所述钉砧向远端侧方向运动，至钉砧与钉仓夹紧组织后，继续握持活动把手，驱动件继续驱动钉砧和钉仓向远端侧方向运动，而击发吻合器。In each of the above embodiments, the driving member and the nail anvil are driven by the driving member through the cooperation of the driving teeth and the rack portion. In another embodiment, the driving member can also be fixedly connected to the anvil through a fixing member, for example, by clamping, or the driving member is directly fixedly connected to the anvil. When the movable handle is rotated in the first direction, when the driving member is driven to move in the direction of the distal end, the driving member directly drives the anvil to move in the direction of the distal end until the anvil and the staple cartridge clamp the tissue Finally, continue to hold the movable handle, and the driving member continues to drive the anvil and the staple cartridge to move toward the distal side, and the stapler is fired.
上述各个实施例的各个部件的结构可以相互组合，得到新的实施例，同样也属于本实用新型的保护范围之内。例如，第三实施例的止挡部和卡持部同样也可以应用于第一实施例或第二实施例。第一实施例的活动把手与壳体也可以是不可拆卸的枢轴连接。第一实施例和第二实施例的固定把手也可以采用第三实施例的固定把手的结构。各个实施例中的连接件均可以设置为可拆卸地或不可拆卸地固定于壳体。The structures of the various components in the above-mentioned embodiments can be combined with each other to obtain new embodiments, which also fall within the protection scope of the present utility model. For example, the stop portion and the clamping portion of the third embodiment can also be applied to the first embodiment or the second embodiment. The movable handle and the housing of the first embodiment may also be non-detachable pivotally connected. The fixed handles of the first embodiment and the second embodiment can also adopt the structure of the fixed handle of the third embodiment. The connectors in each embodiment can be configured to be detachably or non-detachably fixed to the housing.
以上内容是结合具体的优选实施方式对本实用新型所作的进一步详细说明，不能认定本实用新型的具体实施只局限于这些说明。对于本实用新型所属技术领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本实用新型的保护范围。The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320440902.1UCN219461268U (en) | 2023-03-09 | 2023-03-09 | Surgical Stapler |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320440902.1UCN219461268U (en) | 2023-03-09 | 2023-03-09 | Surgical Stapler |
| Publication Number | Publication Date |
|---|---|
| CN219461268Utrue CN219461268U (en) | 2023-08-04 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320440902.1UActiveCN219461268U (en) | 2023-03-09 | 2023-03-09 | Surgical Stapler |
| Country | Link |
|---|---|
| CN (1) | CN219461268U (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |