CN106691526A - Surgical instrument and rod component for same - Google Patents

Surgical instrument and rod component for same Download PDF

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Publication number
CN106691526A
CN106691526A CN201611254839.3A CN201611254839A CN106691526A CN 106691526 A CN106691526 A CN 106691526A CN 201611254839 A CN201611254839 A CN 201611254839A CN 106691526 A CN106691526 A CN 106691526A
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CN
China
Prior art keywords
surgical instrument
stopper
groove
shaft assembly
limiting
Prior art date
Application number
CN201611254839.3A
Other languages
Chinese (zh)
Inventor
孙宝峰
任义唐
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江苏风和医疗器材股份有限公司
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Application filed by 江苏风和医疗器材股份有限公司 filed Critical 江苏风和医疗器材股份有限公司
Priority to CN201611254839.3A priority Critical patent/CN106691526A/en
Publication of CN106691526A publication Critical patent/CN106691526A/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
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00367Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like

Abstract

The invention relates to a rod component for a surgical instrument. The rod component comprises a longitudinal extending spindle, a triggering rod and a limit structure, the triggering rod is connected with the spindle, the limit structure is perpendicular to a longitudinal axis, the limit structure can limit the spindle to move toward the direction pushing the triggering rod to extend a cutter in a removing manner and comprises a limit groove and a limit block, the limit groove is formed in the spindle, and the limit block can separately enter the limit groove and is matched with the limit groove, so that the spindle is limited. The spindle is provided with the limit groove and the limit block capable of separately entering the limit groove, so that the spindle limited movement toward the direction pushing the triggering rod to extend the cutter, mistaken triggering is avoided, and surgical risks are reduced.

Description

用于外科器械的杆身组件及外科器械 A shaft assembly of the surgical instrument and a surgical instrument

技术领域 FIELD

[0001]本发明涉及一种外科器械及用于该外科器械的杆身组件。 [0001] The present invention relates to a surgical instrument and a shaft assembly of the surgical instrument.

背景技术 Background technique

[0002]外科器械为医疗手术中手术工具,缝合器械为外科器械中的一种,其是医学上使用的替代手工缝合的设备,主要工作原理是利用钛钉对组织进行离断或吻合,类似于订书机。 [0002] The medical procedure is a surgical instrument surgical tool, a surgical stapling instrument as the instrument, which is used to replace manual medical suturing device, the operating principle is the tissue amputation or anastomosis of titanium staples, similar in the stapler. 根据适用范围不同,主要可分为皮肤吻合器、消化道(食道、胃肠等)圆形吻合器、直肠吻合器、圆形痔吻合器、包皮环切吻合器、血管吻合器、疝气吻合器、肺切割缝合器等。 Depending on the scope of application, it can be divided into the skin stapler, gastrointestinal tract (esophagus, gastrointestinal, etc.) circular stapler, stapling rectal, hemorrhoids circular stapler, stapling circumcision, vascular anastomosis, a hernia stapler lung GIA like. 缝合器械包括手柄组件、与手柄部连接的杆身组件及固定在杆身组件上的端部执行器,该端部执行器上配置有一对相配合的细长钳口构件,钳口构件可适于插入患者体内以缝合和/或切割组织,钳口构建可支撑容纳钉仓。 Stapling instrument including a handle assembly, the handle assembly with the shaft portion connected to the shaft and fixed to the end effector assembly, with a pair of cooperating elongated jaw members of the end effector on the jaw members may be appropriate insertion into a patient to stapling and / or cutting tissue, the jaws may be constructed to receive a staple cartridge support. 手柄组件上设置有定位手柄和击发手柄,击发手柄通过杆身组件与端部执行器连接以使钳口构件运动。 Is provided on the handle assembly with a handle and firing handle is positioned, the firing handle is connected via a shaft with the end effector assembly to cause movement of the jaw members. 目前,现有的缝合器械在使用的时候,经常会发生操作者不小心拉动击发手柄,从而发生误击发的问题。 Currently, conventional stapling instrument when in use, the operator does not often occur accidentally pulls on the firing handle, so that erroneous firing problems occur.

发明内容 SUMMARY

[0003] 本发明旨在提供一种防止误击发,降低手术风险的用于外科器械的杆身组件。 [0003] The present invention aims to provide an prevent accidental firing, reducing the risk of surgery shaft assembly for a surgical instrument.

[0004] 本发明的一种用于外科器械的杆身组件,包括纵向延伸的芯轴和连接于所述芯轴的击发杆,所述杆身组件还包括垂直于纵向轴线设置的限位结构,所述限位结构可解除地限制所述芯轴向推动所述击发杆出刀的方向移动,所述限位结构包括设置于所述芯轴上的限位槽,以及可脱离地进入所述限位槽中的限位块,所述限位块与所述限位槽配合以对所述芯轴限位。 [0004] A shaft assembly according to the present invention for a surgical instrument comprising a longitudinally extending mandrel and firing rod connected to said mandrel, said shaft assembly further comprises a retaining structure disposed perpendicular to the longitudinal axis the limit structure releasably restrict movement of the mandrel in a direction to push the blade out of the firing rod, the limiting structure comprises a limiting groove disposed on said mandrel, and can be disengaged into the said limiting stopper groove, said groove limiting stopper and the stopper to fit the mandrel.

[0005] 进一步地,所述限位槽至少包括第一限位面,所述第一限位面沿所述击发杆的出刀方向抵压所述限位块。 [0005] Further, the stop groove comprises at least a first stop surface, the firing bar along the first limiting surface direction of the knife is pressed against the stopper.

[0006] 进一步地,所述限位槽包括还包括一个第二限位面,所述第二限位面沿与所述击发杆的出刀方向相反的方向抵压所述限位块。 [0006] Further, the stop comprises a groove further comprises a second limit surface and said second stop surface of the cutting direction along the direction opposite to the firing rod is pressed against the stopper.

[0007] 进一步地,所述限位槽为形成在所述芯轴的外表面上的缺口。 [0007] Further, the stopper grooves are formed on the outer surface of the cutout of the mandrel.

[0008] 进一步地,所述限位结构还包括致动件,所述致动件驱动所述限位块发生位移从而脱离所述限位槽。 [0008] Further, the stop structure further comprises an actuator member, said actuator driving said stopper member is displaced to disengage the stopper groove.

[0009] 进一步地,所述致动件连接于限位块远离所述限位槽的一端,形成为所述限位块的把手部。 [0009] Further, the actuating member connected to one end remote from the limiting stopper groove is formed as a handle portion of said stopper.

[0010] 进一步地,所述杆身组件还包括细长轴和套设在所述细长轴外部的闭合管,所述芯轴设置在所述细长轴内,所述细长轴上设有供所述限位块穿过的通孔,所述闭合管上设有供所述限位块穿过的长孔,所述限位块依次穿过所述通孔和长孔,所述把手部外露于所述闭合管。 [0010] Further, the shaft assembly further comprises an elongate shaft and a sleeve disposed outside of the elongate shaft closure tube, a mandrel disposed within the elongate shaft, said elongate shaft disposed a through hole for passing through said stopper of said closure tube is provided with a long hole for passing through said stopper, said stopper passes through said through hole and the elongated hole, the the handle portion is exposed to the closure tube.

[0011] 进一步地,所述长孔沿所述纵向轴线的长度大于所述通孔沿纵向轴线的长度,且长度之差不小于所述闭合管相对所述细长轴可移动的位移值。 [0011] Further, the length along the longitudinal axis of the elongated hole is greater than the length of the through hole along the longitudinal axis, and the difference is not less than the length of the relative displacement of the closure tube of the elongated shaft is movable. L〇〇12」进一步地,所述细长轴上设置有固定所述限位块的安装孔。 L〇〇12 "Further, the elongated shaft mounting hole is provided to the fixed stop block.

[0013]本发明还提供了一种外科器械,所述外科器械还包括如前所述的用于外科器械的杆身组件,所述杆身组件自所述柄身组件纵向延伸,并连接所述端部执行器。 [0013] The present invention also provides a surgical instrument, the surgical instrument further includes a shaft assembly for a surgical instrument as described above, the shaft assembly extending longitudinally from said handle body assembly, and connection said end effector.

[0014]进一步地,所述外科器械为缝合器械。 [0014] Further, the surgical instrument is a stapling instrument.

[0015]借由上述方案,本发明至少具有以下优点:本发明的用于外科器械的杆身组件及安装有该杆身组件的外科器械通过在垂直于芯轴纵向轴线的方向设置限位槽和可脱离地进入限位槽的限位块,限制芯轴向推动所述击发杆出刀的方向移动,以避免误击发,降低手术风险。 [0015] by means of the above-described embodiment, the present invention has at least the following advantages: a shaft assembly mounted for surgical instruments and the present invention has a shaft assembly of the surgical instrument is disposed through the limiting slot in a direction perpendicular to the longitudinal axis of the mandrel and detachably into the limiting groove of the stopper, to limit movement of the mandrel in a direction to push the blade out of the firing rod to prevent erroneous firing, reducing the risk of surgery.

附图说明 BRIEF DESCRIPTION

[0016]图1是根据本发明实施例的外科器械的结构示意图; [0016] FIG. 1 is a diagram showing the structure of a surgical instrument according to an embodiment of the present invention;

[0017]图2是图1所示的外科器械的杆身组件的结构示意图; [0017] FIG. 2 is a schematic view of the shaft assembly of the surgical instrument shown in Figure 1;

[0018]图3是图2所不的杆身组件的分解图; [0018] FIG. 2 FIG. 3 is an exploded view of the shaft assembly are not of the;

[0019]图4是芯轴及限位槽的结构示意图; [0019] FIG. 4 is a schematic view of the mandrel and restraint slots;

[0020]图5是芯轴和限位块在锁定时的状态图; [0020] FIG. 5 is a state diagram when the mandrel and the locking stopper;

[0021]图6是图2中A部分的放大图; [0021] FIG. 6 is an enlarged view of the portion A 2;

[0022]图7是限位块及致动件的结构示意图。 [0022] FIG. 7 is a schematic structural diagram and a stopper actuating member.

具体实施方式 Detailed ways

[0023]下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。 [0023] Example embodiments of the present invention is described in detail below, exemplary embodiments of the embodiment shown in the accompanying drawings, wherein same or similar reference numerals designate the same or similar elements or elements having the same or similar functions.

[0024] 在本发明的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、 “厚度”、“上,,、“下,,、“前,,、“后,,、“左,,、“右,,、“竖直,,、“水平,,、“顶,,、“底,,、“内”、“外”、“轴向”、“径向”、“周向”、“往复”等指示的方位或位置关系为基于附图所示的方位或位置关系, 仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。 [0024] In the description of the present invention, it is to be understood that the term "center", "longitudinal", "lateral", "length", "width", "thickness", "upper ,,," lower ,,, "front ,,," ,,, the "left ,,," right ,,, "vertical ,,," ,,, horizontal "top ,,," bottom ,,, "inner", "outer", " orientation or positional relationship axial "," radial "," circumferential "," shuttle "or the like indicating a positional relationship of the orientation shown in the accompanying drawings, for convenience of description only and the present invention is to simplify the description, rather than indicative device or element referred to must have or imply a particular orientation, the orientation of a particular configuration and operation, can not be construed as limiting the present invention.

[0025]此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。 [0025] In addition, the terms "first", "second" are used to indicate or imply relative importance or the number of technical features specified implicitly indicated the purpose of description and should not be understood. 由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。 Thus, there is defined "first", "second" features may be explicitly or implicitly include at least one of the feature. 在本发明的描述中,“多个”的含义是至少两个,例如两个、三个等,除非另有明确具体的限定。 In the description of the present invention, the meaning of the "plurality" is at least two, e.g. two, three, etc., unless explicitly specifically limited.

[0026]下面通过参考附图描述的实施例是示例性的,旨在用于解释本发明,而不能理解为对本发明的限制。 [0026] By following with reference to the embodiments described are exemplary, and are intended for explaining the present invention and should not be construed as limiting the present invention.

[0027]请参见图1和图2,本发明一较佳实施例所示的外科器械包括手柄组件10、从手柄组件10纵向延伸的杆身组件20及设置于杆身组件20—端的端部执行器30。 The surgical instrument [0027] Referring to Figures 1 and 2, a preferred embodiment of the present invention includes a handle assembly 10 illustrated, a shaft assembly 10 extending longitudinally from the handle assembly 20 and an end portion disposed in the shaft assembly end 20 actuator 30. 为了方便描述, 本实施例将靠近手柄组件10的一侧定义为近侧,而远离手柄组件10、靠近端部执行器30的一侧定义为远侧,各个技术特征都有相对的近侧端和远侧端。 For convenience of description, the present embodiment will be defined near a side of the handle assembly 10 proximally, away from the handle assembly 10, defines a side close to the end effector 30 is distal, the various technical features have opposite proximal end and a distal end. 朝向手柄组件的方向为近,朝向端部执行器的方向为远。 A direction toward the handle assembly is near, a direction toward the end effector is far. 另外,由手柄组件10到端部执行器30的延伸方向定义为纵向,杆身组件20的轴线定义为纵向轴线。 Further, the extending direction is defined by the handle assembly 10 to the end effector defines a longitudinal axis 30 of the shaft assembly 20 to the longitudinal axis. 端部执行器3〇包括相对设置的插入端31和固定端32,插入端31为在手术时端部执行器30首先进入被手术者体内的一端,固定端32与杆身组件20连接。 3〇 end effector includes an insertion end 31 disposed opposite the fixed end 32 and the insertion end 31 during surgery end effector 30 enters the first end of the body of the operator, the fixed end 32 of the shaft assembly 20 is connected. 手柄组件10、端部执行器30及手柄组件10与杆身组件2〇的连接方式、杆身组件20与端部执行器30的连接方式与现有技术相同,故不再赘述。 The handle assembly 10, the end effector 30 and handle assembly 10 with the shaft assembly 2〇 connection, the connection shaft assembly 20 and an end effector 30 is the same as the prior art, and therefore will not be repeated. 外科器械具体为缝合器械,如吻合器。 Specifically stapling instrument surgical instrument, such as a stapler. [0028] 请参见图2至图4,杆身组件20包括细长轴21,细长轴21包括限定于其中的通道,该通道能够可滑动地接收芯轴23和与芯轴23连接的击发杆25,芯轴23连接于近侧端,击发杆25—端连接于芯轴23,另一端连接于端部执行器30的近侧端;细长轴21的通道内还设有压杆26和拉杆24,压杆26设置在击发杆25的上方以稳定击发杆25,拉杆24—端与关节头组件27连接,另一端连接于旋钮组件28;杆身组件20还包括套设在细长轴21外部的闭合管22。 [0028] Referring to FIG 2 to FIG 4, shaft assembly 20 includes an elongated 21, elongate shaft 21 includes a firing therein defining a channel that slidably receives the mandrel 23 and the mandrel 23 is connected to the shaft rod 25, the mandrel 23 is connected to the proximal end of firing rod 25 is connected to the end of the mandrel 23, the other end connected to the proximal end of the end effector 30; inner channel is further provided with an elongated shaft 21 lever 26 and rod 24, lever 26 is disposed above the firing rod 25 to stabilize the firing bar 25, 24- rod end joint head assembly 27 and the other end connected to the knob assembly 28; a shaft assembly 20 further comprises a sleeve disposed in the elongated the outer shaft 21 of closure tube 22. [0029] 请参见图4和图5并结合图3,杆身组件20还包括垂直于纵向轴线设置的限位结构, 限位结构包括设置于芯轴23上的限位槽291,还包括可进入限位槽291或从限位槽291脱离的限位块292,限位块292与限位槽291配合以对芯轴23限位,进而限制芯轴23向推动击发杆25出刀的方向移动。 [0029] Referring to FIG. 4 and 5 in conjunction with FIG. 3, the shaft assembly 20 further comprises a retaining structure disposed perpendicular to the longitudinal axis, disposed in the limiting structure comprises a limiting groove 23 on the mandrel 291, further comprising into the limiting groove 291 or groove 291 with the stopper 291 disengaged from the stopper 292, the stopper 292 of the stopping groove to limit the mandrel 23, the mandrel 23 thereby limiting the firing rod 25 to push the knife direction mobile.

[0030] 请参见图4和图5,限位槽291至少包括第一限位面(图中未标号),第一限位面沿击发杆25的出刀方向抵压限位块292,至少使得限位块292以反作用力抵持第一限位面,限制芯轴23向远侧端移动。 [0030] Referring to FIG. 4 and FIG. 5, the stopper groove 291 at least a first stop surface (not labeled), a first stop surface in the direction of the knife firing bar 25 is pressed against the stopper 292, at least so that the stopper 292 to hold a reaction force against a first stop surface to limit movement of the mandrel 23 to a distal end. 在本实施例中,限位槽291还包括第二限位面(图中未标号),第二限位面沿另一方向抵压限位块292,该另一方向与击发杆25的出刀方向相反。 In the present embodiment, the groove 291 further includes a second limiting stop surface (not labeled), the second stop surface in the other direction, the stopper 292 is pressed against the other direction with a firing rod 25 Instead of cutting direction. 因而该限位块292也可限制芯轴23向近侧端移动,也就是说,无论驱动芯轴23向远侧端推进击发杆25,还是驱动芯轴23向近侧端拉回击发杆25都需要将限位块292从限位槽291中脱离。 Thus the limiting block 292 may also limit the mandrel 23 is moved toward the proximal end, that is to say, regardless of the drive spindle 23 is advanced distal end of firing rod 25, the mandrel 23 is retracted proximally the driving end of the firing rod 25 the need to limit stopper 292 is disengaged from the groove 291. 在发明的优选实施方式中,限位槽291为形成在芯轴23的外表面231上的缺口,在其他实施方式中,芯轴上可设置有凸块,凸块与芯轴围设形成限位槽,或者,芯轴上设置有凸块,限位槽形成在凸块上。 In a preferred embodiment of the invention, a limiting groove 291 is formed on the outer surface of the notch 231 of the mandrel 23, in other embodiments, the bump may be provided on the mandrel, the mandrel is disposed around the bump forming limits the positioning groove is provided, or mandrel with a bump stopper groove formed on the bump. 芯轴23为细长状的圆柱型结构。 The mandrel 23 is an elongated cylindrical-shaped structure.

[0031] 请参见图5至图7,限位结构还包括致动件,致动件驱动所述限位块292发生位移从而脱离限位槽291。 [0031] Referring to FIG. 5 to FIG. 7, the stopper structure further includes an actuator member, the actuator drives the stopper member 292 is displaced to disengage the stopper groove 291. 具体在本实施例中,“位移”指的是拔出的动作,S卩限位块292进入和脱离限位槽291的方式为插拔式:当限位块292插入至限位槽291时,限位块292限制芯轴23朝击发杆25的出刀方向(图3中箭头a所指方向)移动,而需要击发时,将限位块292从限位槽291 中拔出,解除对芯轴23的限制,使得击发杆25可出刀。 In this particular embodiment, the "displacement" refers to an extraction operation, S Jie way stopper 292 limiting groove 291 into and out of plug: 291 when the stopper 292 is inserted into the limiting groove , the stopper 292 limits the mandrel 23 towards the firing direction of the knife lever 25 (indicated by arrow a direction of FIG. 3), while the firing required, the stopper 292 is pulled out from the stopper groove 291, releases the the mandrel 23 is restricted, so that the firing bar 25 may be a knife. 当然,关于“位移”的方式,也可以有其他的变换,此处不一一列举。 Of course, on the "displacement" of the way, you can also have other transformation, not to enumerate here. 为了便于操作,致动件连接于限位块292远离限位槽191的一端,形成为限位块292的把手部2922。 For ease of operation, the actuating member is connected to one end of the stopper 292 away from the stop groove 191 of the grip portion 2,922,292 stopper is formed. 也就是说,限位块292包括可插入至限位槽291内的限位部2921和连接于限位部2921的把手部2922,细长轴21上设有供限位块292穿过的通孔(未标示),闭合管22上设有供限位块292穿过的长孔221,把手部2922暴露在闭合管22的外部; 具体在本实施例中,把手部2922呈圆柱形结构。 That is, the stopper 292 includes a stopper portion can be inserted into the limiting groove 2,912,921 stopper portion and the connecting portion 2921 to the handle 2922, an elongated shaft 21 is provided for passing through the stopper 292 holes (not shown), is provided for the closure tube 22 221292 stopper long hole through which the handle portion 2922 is exposed outside of the closure tube 22; in this particular embodiment, the handle portion 2922 cylindrical structure.

[0032] 请参见图3和图6,由于端部执行器30在定位的时候,闭合管22需要相对细长轴21 沿击发杆25的出刀方向(图2中箭头a所指方向)移动,以推动端部执行器30闭合,而此时,芯轴23和限位结构相对细长轴21不移动,所以,长孔221与通孔的长度之差不小于闭合管22相对细长轴21可移动的位移值。 [0032] Referring to FIG. 3 and FIG. 6, the end effector 30 is positioned when the closure tube 22 relative to the elongated shaft requires a knife 21 in the direction of the firing rod 25 (the direction indicated by arrow a in FIG. 2) to drive the end effector 30 is closed, but this time, the structure of the mandrel 23 and the stopper 21 does not move relative to the elongate axis, therefore, the difference between the length of the long hole 221 and the through hole is not less than the closure tube 22 relative to the elongated shaft 21 movable displacement values.

[0033] 请参见图4至图7,在初始状态时(击发杆25未击发时),限位块292的限位部2921插入至限位槽291内,以实现限位块292与芯轴23的锁定,防止击发杆25击发,而需要解除对芯轴23的锁定时,只需夹持并牵拉把手部2922从而将限位块292的限位部2吧1从限位槽291内拔出即可。 [0033] Referring to FIG. 4 to FIG. 7, in the initial state (when the firing bar 25 unfired), the stopper portion 292 of the stopper 2921 is inserted into the limiting groove 291, the stopper 292 in order to achieve the mandrel the lock 23, firing rod 25 to prevent the firing, and the need to lock the mandrel 23 is released, simply gripping and pulling the grip portion 1 so that the stopper portion 2922 of the stopper 292 limiting groove 291 from 2 bar be pulled out. 所述细长轴21上设置有限位所述限位块292的安装孔(未标号)。 The elongate shaft provided with a limit stop of the mounting hole of the block 292 (not labeled) 21. 所述限位块292 被限位在安装孔内,以防止限位块292在锁定状态时晃动。 The stopper 292 is installed in the stopper hole, the stopper 292 to prevent rattling in the locked state.

[0034]请参见图3至图5,上述用于外科器械的杆身组件20的工作原理如下:在初始状态时(击发杆25未击发),限位块292插入至芯轴23的限位槽291内,限位块292与限位槽291形成锁定状态,由于限位块2犯的干涉,芯轴23无法朝击发杆25的出刀方向移动(图3中箭头a 所指方向),进而无法推动击发杆25出刀,从而可避免误击发;当需要击发杆25出刀时,将限位块292从限位槽291内拔出,此时,限位块292与限位槽291解锁,与此同时,驱动手柄组件的击发手柄,以实现击发杆25击发。 [0034] Referring to FIG 3 to FIG 5, the working principle of the above-described shaft assembly for a surgical instrument 20 is as follows: (firing bar 25 unfired) in the initial state, the stopper 292 is inserted into the stopper 23 of the mandrel the groove 291, the stopper 292 and the stopper grooves 291 formed in the lock state, due to the interference of the stopper 2 made, the mandrel 23 can not be fired towards the knife movement direction of the lever 25 (indicated by arrow a direction of FIG. 3), and thus can not push a knife firing bar 25, thereby avoiding erroneous firing; when needed knife firing rod 25, the stopper 292 is pulled out from the stop slot 291, this time, the stopper 292 and the stopper grooves 291 unlocking the same time, the drive handle firing handle assembly, the firing bar 25 to achieve firing. 安装有上述杆身组件20的外科器械在使用的时候可以避免误击发,降低手术风险。 Surgical instrument 20 is mounted above the firing shaft assembly error can be avoided when in use, reducing the risk of surgery.

[0035]在本发明中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系,除非另有明确的限定。 [0035] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed" and like terms are to be broadly understood, for example, may be a fixed connection, may be detachable connection, or integrally; may be a mechanical connector may be electrically connected; may be directly connected, can also be connected indirectly through intervening structures, it may be interaction between the two internal communicating elements or two elements, unless otherwise expressly limited. 对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。 Those of ordinary skill in the art, to be understood that the specific meanings in the present invention depending on the circumstances.

[0036]在本发明中,除非另有明确的规定和限定,第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触,或第一和第二特征通过中间媒介间接接触。 [0036] In the present invention, unless otherwise expressly specified or limited, the first feature in the "on" a second or "lower" may be in direct contact with the first and second characteristic or the first and second characteristics by intermediary indirect contact. 而且,第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方,或仅仅表示第一特征水平高度高于第二特征。 Also, the first feature a second feature in the "on", "above" and "upper" But first feature a second feature directly above or obliquely upward or simply represents a first characteristic level is higher than the height of the second feature. 第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方,或仅仅表示第一特征水平高度小于第二特征。 In the first feature a second feature "beneath", "below" and "lower" may be just below the first feature or the second feature obliquely downward, or just less than the level represented by the first feature a second feature.

[0037]在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。 [0037] In the description of the present specification, reference to the term "one embodiment," "some embodiments", "an example", "a specific example", or "some examples" means that a description of the exemplary embodiment or embodiments described a particular feature, structure, material, or characteristic is included in at least one embodiment of the present invention, embodiments or examples. 在本说明书中,对上述术语的示意性表述不必须针对的是相同的实施例或示例。 In the present specification, a schematic representation of the above terms must not be the same for the embodiment or exemplary embodiments. 而且,描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。 Furthermore, the particular features, structures, materials, or characteristics described may be in any one or more embodiments or examples combined in suitable manner. 此外,在不相互矛盾的情况下,本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。 Furthermore, different embodiments or examples and embodiments or features of different exemplary embodiments without conflicting, those skilled in the art described in this specification can be combined and the combination thereof.

[0038] 尽管上面己经示出和描述了本发明的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本发明的限制,本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。 [0038] While the above has illustrated and described embodiments of the present invention, it is understood that the above embodiments are exemplary and are not to be construed as limiting the present invention, the scope of the present invention to those of ordinary skill in the art It can be varied within the above-described embodiments, modifications, alternatives, and modifications.

Claims (11)

1. 一种用于外科器械的杆身组件,包括纵向延伸的芯轴和连接于所述芯轴的击发杆, 其特征在于:所述杆身组件还包括垂直于纵向轴线设置的限位结构,所述限位结构可解除地限制所述芯轴向推动所述击发杆出刀的方向移动,所述限位结构包括设置于所述芯轴上的限位槽,以及可脱离地进入所述限位槽中的限位块,所述限位块与所述限位槽配合以对所述芯轴限位。 1. A shaft assembly for a surgical instrument, comprising a mandrel extending longitudinally and firing rod connected to said mandrel, characterized in that: the shaft assembly further comprises a retaining structure disposed perpendicular to the longitudinal axis the limit structure releasably restrict movement of the mandrel in a direction to push the blade out of the firing rod, the limiting structure comprises a limiting groove disposed on said mandrel, and can be disengaged into the said limiting stopper groove, said groove limiting stopper and the stopper to fit the mandrel.
2. 根据权利要求1所述的用于外科器械的杆身组件,其特征在于:所述限位槽至少包括第一限位面,所述第一限位面沿所述击发杆的出刀方向抵压所述限位块。 The shaft assembly for a surgical instrument according to claim 1, wherein: said groove comprises at least a first limiting stop surface, the firing bar along the first limiting surface of the blade pressing direction of the stopper.
3. 根据权利要求2所述的用于外科器械的杆身组件,其特征在于:所述限位槽还包括包括第二限位面,所述第二限位面沿与所述击发杆的出刀方向相反的方向抵压所述限位块。 The shaft assembly for a surgical instrument according to claim 2, wherein: the stop comprises a groove further comprises a second limit surface and said second stop surface along said firing rod direction opposite to the knife is pressed against the stopper.
4. 根据权利要求1所述的用于外科器械的杆身组件,其特征在于:所述限位槽为形成在所述芯轴的外表面上的缺口。 The shaft assembly for a surgical instrument according to claim 1, wherein: said limiting groove is formed on an outer surface of the cutout of the mandrel.
5. 根据权利要求1所述的用于外科器械的杆身组件,其特征在于:所述限位结构还包括致动件,所述致动件驱动所述限位块发生位移从而脱离所述限位槽。 The shaft assembly for a surgical instrument according to claim 1, wherein: said retaining structure further comprises an actuator member, said actuator driving said stopper member is displaced to disengage said limiting slot.
6. 根据权利要求5所述的用于外科器械的杆身组件,其特征在于:所述致动件连接或一体成型于所述限位块远离所述限位槽的一端,形成为把手部。 The shaft assembly for a surgical instrument according to claim 5, wherein: said actuating member connected to or integrally formed on the end remote from the limiting stopper groove is formed in the handle portion .
7. 根据权利要求6所述的用于外科器械的杆身组件,其特征在于:所述杆身组件还包括细长轴和套设在所述细长轴外部的闭合管,所述芯轴设置在所述细长轴内,所述长轴上设有供所述限位块穿过的通孔,所述闭合管上设有供所述限位块穿过的长孔,所述限位块依次穿过所述通孔和长孔,所述把手部外露于所述闭合管。 The shaft assembly for a surgical instrument according to claim 6, wherein: the shaft assembly further comprises an elongate shaft and a sleeve disposed in the elongate shaft closure tube external to the mandrel disposed within the elongated shaft, the through hole is provided for passing through the stopper on the major axis, said closure tube is provided with a long hole for passing through the stopper, said limiting bit block passes through the through-hole and the long hole, the handle portion is exposed to the closure tube.
8. 根据权利要求7所述的用于外科器械的杆身组件,其特征在于:所述长孔沿所述纵向轴线的长度大于所述通孔沿纵向轴线的长度,且长度之差不小于所述闭合管相对所述细长轴可移动的位移值。 The shaft assembly for a surgical instrument according to claim 7, wherein: the length of the elongated hole along the longitudinal axis greater than the length of the through hole along the longitudinal axis, and the difference is not less than the length of the elongated closure tube relative to said movable shaft displacement value.
9. 根据权利要求8所述的用于外科器械的杆身组件,其特征在于:所述细长轴上设置有固定所述限位块的安装孔。 According to claim shaft assembly for a surgical instrument according to claim 8, characterized in that: the elongated shaft is provided with a mounting hole to fix the stopper.
10. —种外科器械,包括手柄组件和端部执行器,其特征在于:所述外科器械还包括如权利要求1〜9任一项所述的用于外科器械的杆身组件,所述杆身组件自所述手柄组件纵向延伸,并连接所述端部执行器。 10. - kind of a surgical instrument comprising a handle assembly and an end effector, wherein: said surgical instrument further comprises a shaft assembly for a surgical instrument according to any one of claim 1~9 claim lever the body assembly extending longitudinally from the handle assembly and connected to said end effector.
11. 根据权利要求10所述的外科器械,其特征在于:所述外科器械为缝合器械。 11. The surgical instrument according to claim 10, wherein: said surgical instrument is a stapling instrument.
CN201611254839.3A 2016-12-29 2016-12-29 Surgical instrument and rod component for same CN106691526A (en)

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