吻合器是医学上使用的替代传统手工缝合的设备，目前临床上使用的吻合器具有缝合快速、操作简便及很少有副作用和手术并发症等优点，很受国内外临床外科医生的青睐和推崇。吻合器根据功能和结构分为圆管型吻合器、直线型缝合器、腔镜吻合器等，其中圆管型吻合器用于各种腔道的吻合，通过在腔道组织内击入缝钉，使得两层腔道组织缝合在一起，同时内置的环形刀切除多余的组织，形成圆形的吻合口，完成腔道的吻合。目前主要应用于食管、胃、肠等消化道的吻合，以及包皮环切与痔疮环切后的吻合。Staplers are medical devices that replace traditional manual suturing. The staplers currently used in clinical practice have the advantages of fast suturing, easy operation, and few side effects and surgical complications, and are very popular and highly praised by clinical surgeons at home and abroad. Staplers are divided into circular staplers, linear staplers, laparoscopic staplers, etc. according to their functions and structures. Circular staplers are used for the anastomosis of various cavities. By driving staples into the cavity tissue, the two layers of cavity tissue are sutured together. At the same time, the built-in circular knife removes excess tissue to form a circular anastomosis to complete the anastomosis of the cavity. At present, it is mainly used for the anastomosis of the digestive tract such as the esophagus, stomach, and intestines, as well as the anastomosis after circumcision and hemorrhoidal circumcision.

为了防止吻合器在手术中连续击发两次，中国专利文献CN1785127A公开的吻合器中设置了防二次击发装置，其中，外科用圆管型装订仪，其包括装订仪本体、装订头、击发机构、传动调节机构以及保险机构。击发机构包括相互固定连接的把手与外壳，把手与外壳铰接在装订仪本体上，外壳内部设有挡块，把手上设有凸块；传动调节机构包括丝杆和调节旋钮，丝杆前端与装订头连接，后端与调节旋钮螺纹连接。In order to prevent the stapler from firing twice in succession during surgery, a stapler disclosed in Chinese patent document CN1785127A is provided with an anti-secondary firing device, wherein a surgical round tube stapler includes a stapler body, a stapler head, a firing mechanism, a transmission adjustment mechanism and a safety mechanism. The firing mechanism includes a handle and a housing that are fixedly connected to each other, the handle and the housing are hinged on the stapler body, a stopper is provided inside the housing, and a convex block is provided on the handle; the transmission adjustment mechanism includes a screw and an adjustment knob, the front end of the screw is connected to the stapler head, and the rear end is threadedly connected to the adjustment knob.

保险机构包括保险杆与拉片，保险杆的底部具有保险块，顶部具有指针，装订仪本体对应指针的位置处设有指示窗口，保险杆中部铰接在装订仪本体内壁上，保险杆与复位弹簧连接，复位弹簧使得保险杆具有绕其铰接点逆时针转动的趋势；拉片前端分为三片，中间一片的前端设有拉钩，两侧两片滑动设置在装订仪本体内壁面的导向槽中，拉片的尾部固定套设在丝杆上，初始状态下，拉钩钩在保险杆的凸台上。The safety mechanism includes a safety rod and a pull tab. The bottom of the safety rod has a safety block and the top has a pointer. An indication window is provided at the position of the binder body corresponding to the pointer. The middle part of the safety rod is hinged on the inner wall of the binder body. The safety rod is connected to a reset spring. The reset spring makes the safety rod have a tendency to rotate counterclockwise around its hinge point. The front end of the pull tab is divided into three pieces. The front end of the middle piece is provided with a draw hook, and the two pieces on both sides are slidably arranged in the guide groove on the inner wall of the binder body. The tail of the pull tab is fixedly sleeved on the screw rod. In the initial state, the draw hook is hooked on the boss of the safety rod.

在使用中，初始状态时，保险杆底部上的保险块抵靠在外壳内的挡块处，使得把手无法压下击发，处于自动保险状态；手术中，旋转调节旋钮带动丝杆向调节旋钮方向运动，丝杆带动与其连接的拉片运动，拉片上的拉钩拉动保险杆上的凸台从而使保险杆绕其铰接点顺时针转动，保险杆上的保险块与把手外壳内的挡块完全脱离，此时处于可击发状态；压下把手击发时，把手上的凸块将拉片的中间一片顶开并使拉片变形，从而使得拉片上的拉钩远离保险杆上的凸台，拉钩失去对保险杆的限位作用，击发完成后松开把手，保险杆会在复位弹簧的作用下逆时针转动，保险杆上的保险块再次抵靠在把手外壳内的挡块处，使得把手无法压下，起到防止二次击发的功能。When the trigger is in use, the safety block on the bottom of the safety rod abuts against the block in the shell, so that the handle cannot be pressed down to fire, and the gun is in an automatic safety state. During operation, rotating the adjusting knob drives the screw rod to move in the direction of the adjusting knob, and the screw rod drives the pull tab connected thereto to move. The hook on the pull tab pulls the boss on the safety rod, so that the safety rod rotates clockwise around its hinge point, and the safety block on the safety rod is completely separated from the block in the handle shell, and the gun is in a firing state. When the handle is pressed down to fire, the boss on the handle pushes open the middle piece of the pull tab and deforms the pull tab, so that the hook on the pull tab moves away from the boss on the safety rod, and the hook loses its limiting effect on the safety rod. After firing, the handle is released, and the safety rod rotates counterclockwise under the action of the reset spring, and the safety block on the safety rod abuts against the block in the handle shell again, so that the handle cannot be pressed down, thereby preventing secondary firing.

但是，上述的吻合器，在击发完成后，由于拉片变形不会自动复位，即拉片失去了驱动保险杆再次转动的功能，使得保险杆上的保险块会持续抵靠在外壳内的挡块处，吻合器持续处于无法击发的保险状态，所以该圆管型装订仪无法重复使用，其可靠性无法通过手术前进行试验性击发的方式来检测，会导致手术中出现失效的击发过程，引起手术失败的安全隐患。However, after the above-mentioned stapler is fired, the pull tab will not automatically reset due to its deformation, that is, the pull tab loses the function of driving the safety rod to rotate again, so that the safety block on the safety rod will continue to abut against the block inside the shell, and the stapler will continue to be in a safety state where it cannot be fired. Therefore, the circular tube type stapler cannot be reused, and its reliability cannot be tested by trial firing before surgery, which will lead to an ineffective firing process during the operation and cause a safety hazard of surgical failure.

发明内容Summary of the invention

因此，本发明所要解决的技术问题在于克服现有技术中击发设备的防二次击发装置引起击发设备无法重复利用；及使用前无法对击发设备进行试验性检测而引起的安全隐患的缺陷。Therefore, the technical problem to be solved by the present invention is to overcome the defects of the anti-secondary firing device of the firing device in the prior art, which causes the firing device to be unable to be reused; and the safety hazards caused by the inability to conduct experimental testing on the firing device before use.

为此，本发明提供一种击发设备，包括To this end, the present invention provides a firing device, comprising

基架；Scaffolding;

第一运动部件，在相对所述基架的起始位置与作用位置之间可滑动地设置；A first moving component is slidably arranged between a starting position and an action position relative to the base frame;

操作部件，具有对所述第一运动部件施加趋向所述作用位置的作用力的抵接点；An operating member having an abutment point for applying a force toward the action position to the first moving member;

其特征在于，还包括It is characterized by that it also includes

第二运动部件，在相对于所述基架的固定状态设置，所述第二运动部件与所述操作部件相抵接，所述第二运动部件构成所述操作部件的支点；A second moving component is arranged in a fixed state relative to the base frame, the second moving component abuts against the operating component, and the second moving component constitutes a fulcrum of the operating component;

联动部件，在相对于所述基架的第一位置与第二位置之间活动设置；在所述第二位置，所述联动部件可将所述第二运动部件从固定状态转换到移动状态；a linkage component movably arranged between a first position and a second position relative to the base frame; in the second position, the linkage component can convert the second moving component from a fixed state to a moving state;

复位机构，在所述移动状态，用于驱动所述第二运动部件转换到所述固定状态，及驱动所述联动部件复位到所述第一位置。The reset mechanism is used, in the moving state, to drive the second moving component to switch to the fixed state, and to drive the linkage component to reset to the first position.

进一步优选地，上述的击发设备，所述操作部件的一端铰接在所述第一运动部件上，在所述第一运动部件上形成第一铰接点；Further preferably, in the firing device described above, one end of the operating component is hinged to the first moving component, forming a first hinge point on the first moving component;

还包括支杆，其两端分别铰接在所述操作部件和所述第二运动部件上，在所述第二运动部件上形成第二铰接点；It also includes a support rod, two ends of which are respectively hinged on the operating component and the second moving component, forming a second hinge point on the second moving component;

在所述固定状态，所述第二铰接点构成所述操作部件的支点；在所述移动状态，所述第一铰接点构成所述操作部件的支点。In the fixed state, the second hinge point constitutes a fulcrum of the operating component; in the moving state, the first hinge point constitutes a fulcrum of the operating component.

进一步优选地，上述的击发设备，所述第二运动部件上开设有限位区域；Further preferably, in the firing device, a limited position area is provided on the second moving component;

所述击发设备还包括限位机构，在相对于所述基架的第三位置与第四位置之间可滑动地设置在所述第二运动部件上；The firing device further comprises a limiting mechanism slidably disposed on the second moving component between a third position and a fourth position relative to the base frame;

所述联动部件的两端分别与所述第一运动部件和所述限位机构联动设置；在所述第一位置，所述限位机构锁定在所述限位区域内；在所述第二位置，所述联动部件解除所述限位机构对所述第二运动部件的锁定。The two ends of the linkage component are respectively linked with the first moving component and the limiting mechanism; in the first position, the limiting mechanism is locked in the limiting area; in the second position, the linkage component releases the locking of the second moving component by the limiting mechanism.

进一步优选地，上述的击发设备，所述限位机构包括Further preferably, in the firing device, the limiting mechanism comprises

锁定件，在所述第三位置，其插接在所述限位区域内；The locking member is inserted into the limiting area in the third position;

第二复位件，设置在所述锁定件上，给所述锁定件施加朝向所述限位区域的第二偏压力；a second restoring member, disposed on the locking member, and applying a second biasing force toward the limiting area to the locking member;

所述联动部件配合于所述锁定件上，在所述第二位置，所述联动部件给所述锁定件施加背向所述限位区域的抵压力，所述锁定件退出所述限位区域。The linkage component is matched with the locking member. In the second position, the linkage component applies a pressing force to the locking member facing away from the limiting area, and the locking member withdraws from the limiting area.

进一步优选地，上述的击发设备，在所述联动部件朝向所述第二位置运动时，所述锁定件与所述联动部件通过倾斜的第一导向面配合，所述联动部件在所述第一导向面上产生所述抵压力。Further preferably, in the above-mentioned firing device, when the linkage component moves toward the second position, the locking member cooperates with the linkage component through the inclined first guide surface, and the linkage component generates the pressing force on the first guide surface.

进一步优选地，上述的击发设备，所述锁定件的内壁面上成型有沿其滑动方向突出的突出部，在所述第一导向面抵压在所述突出部上时，所述联动部件对所述锁定件施加所述抵压力。Further preferably, in the firing device mentioned above, a protrusion protruding along its sliding direction is formed on the inner wall surface of the locking member, and when the first guide surface presses against the protrusion, the linkage component applies the pressing force to the locking member.

进一步优选地，上述的击发设备，所述联动部件伸入所述锁定件内的一端的端部设有朝向所述突出部的所述第一导向面；Further preferably, in the firing device, the end of the linkage component extending into the locking member is provided with the first guide surface facing the protruding portion;

在所述第一位置，所述第一导向面远离所述突出部；在所述第二位置，所述联动部件上与所述第一导向面位于同侧的外壁面抵接在所述突出部上。In the first position, the first guide surface is away from the protrusion; in the second position, the outer wall surface of the linkage component located on the same side as the first guide surface abuts against the protrusion.

进一步优选地，上述的击发设备，还包括一端固定在所述基架上，另一端穿过所述锁定件并朝向所述第一运动部件方向延伸的限位件；Further preferably, the firing device further comprises a limiting member having one end fixed to the base frame and the other end passing through the locking member and extending toward the first moving member;

所述联动部件伸入所述锁定件内的所述另一端可滑动地设置在所述限位件上，所述限位件用于限制所述联动部件的运动范围。The other end of the linkage component extending into the locking component is slidably disposed on the limiting component, and the limiting component is used to limit the movement range of the linkage component.

进一步优选地，上述的击发设备，所述联动部件包括第一滑槽和设置在形成所述第一滑槽的至少一侧壁上的第二滑槽，所述第一滑槽和所述第二滑槽的开口方向相反；Further preferably, in the firing device, the linkage component comprises a first slide groove and a second slide groove provided on at least one side wall forming the first slide groove, and the opening directions of the first slide groove and the second slide groove are opposite;

所述限位件的另一端的端部上设置有限位部，所述限位件的另一端伸入所述第一滑槽内，所述限位部嵌入所述第二滑槽内；A limiting portion is provided on the end of the other end of the limiting member, the other end of the limiting member extends into the first sliding groove, and the limiting portion is embedded in the second sliding groove;

在所述第一位置，所述限位部抵靠在所述第二滑槽的槽底；在所述第二位置，所述限位部挡在所述第二滑槽的开口处。In the first position, the limiting portion abuts against the bottom of the second sliding slot; in the second position, the limiting portion blocks the opening of the second sliding slot.

进一步优选地，上述的击发设备，在所述第一位置，所述联动部件的一端搭接在所述第一运动部件的一端上；在所述作用位置，所述联动部件的所述一端的端面与所述第一运动部件的所述一端的端面脱离。Further preferably, in the above-mentioned firing device, in the first position, one end of the linkage component overlaps one end of the first moving component; in the action position, the end face of the one end of the linkage component is disengaged from the end face of the one end of the first moving component.

优选地，上述的击发设备，还包括设置在所述基架和所述第一运动部件之间的第一复位件，所述第一复位件给所述第一运动部件施加朝向所述第二运动部件一侧的第一偏压力。Preferably, the firing device mentioned above further comprises a first restoring member disposed between the base frame and the first moving component, wherein the first restoring member applies a first biasing force to the first moving component toward a side of the second moving component.

进一步优选地，上述的击发设备，所述复位机构包括Further preferably, in the firing device, the reset mechanism comprises

第三复位件，设置在所述基架与所述第二运动部件之间，并给所述第二运动部件施加朝向所述第一运动部件一侧的第三偏压力；a third restoring member, disposed between the base frame and the second moving component, and applying a third biasing force to the second moving component toward one side of the first moving component;

拨动件，在相对于所述基架的第五位置与第六位置之间可滑动设置；a toggle member slidably disposed between a fifth position and a sixth position relative to the base frame;

受力件，设置在所述联动部件的外壁面上并位于所述拨动件与所述第一运动部件之间；A force-bearing member, disposed on the outer wall surface of the linkage member and located between the toggle member and the first moving member;

在所述拨动件朝向所述第六位置滑动时，所述拨动件给所述受力件施加朝向所述第一位置的拨动力，以使所述联动部件复位到所述第一位置。When the toggle member slides toward the sixth position, the toggle member applies a toggle force toward the first position to the force-bearing member, so that the linkage component is reset to the first position.

优选地，上述的击发设备，所述受力件上朝向所述拨动件的一侧端面设有第二导向面，在所述拨动件朝向所述第六位置滑动时，所述拨动件正对并抵压所述第二导向面。Preferably, in the firing device described above, a second guide surface is provided on one end surface of the force-bearing member facing the toggle member, and when the toggle member slides toward the sixth position, the toggle member faces and presses against the second guide surface.

优选地，上述的击发设备，所述复位机构还包括设置在所述基架上并抵靠在所述联动部件上的第四复位件，所述第四复位件给所述联动部件施加朝向所述第一位置的第四偏压力。Preferably, in the firing device mentioned above, the reset mechanism further comprises a fourth reset member disposed on the base frame and resting against the linkage component, wherein the fourth reset member applies a fourth biasing force toward the first position to the linkage component.

优选地，上述的击发设备，还包括在相对于所述基架的第五位置与第六位置之间可滑动地设置的第三运动部件，所述拨动件设置在所述第三运动部件上；Preferably, the firing device further comprises a third moving component slidably arranged between a fifth position and a sixth position relative to the base frame, and the toggle member is arranged on the third moving component;

所述第二运动部件套设在所述第三运动部件上。The second moving component is sleeved on the third moving component.

优选地，上述的击发设备，所述限位区域为开设在所述第二运动部件上通孔或凹槽。Preferably, in the firing device mentioned above, the limiting area is a through hole or a groove provided on the second moving part.

本发明技术方案，具有如下优点：The technical solution of the present invention has the following advantages:

1.本发明提供的击发设备，设置防二次击发装置，击发设备第一次击发完成后，松开把手，联动部件在第一运动部件的驱动下驱使锁定件脱离限位区域，将第二运动部件从固定状态转换到移动状态，使得击发设备转换到击发失效状态。1. The firing device provided by the present invention is provided with an anti-secondary firing device. After the firing device completes the first firing, the handle is released, and the linkage component drives the locking component out of the limiting area under the drive of the first moving component, and the second moving component is converted from a fixed state to a mobile state, so that the firing device is converted to a firing failure state.

防二次击发装置可以实现在第一次击发后自动将击发设备转变为击发失效状态的功能，能够避免在第一次击发后因误碰操作部件使得击发设备再次击发的情况发生，可靠性强。The anti-secondary firing device can realize the function of automatically converting the firing device into a firing failure state after the first firing, which can avoid the firing device from firing again due to accidental contact with the operating parts after the first firing, and has high reliability.

2.本发明提供的击发设备，设置复位机构，复位机构包括受力件及拨动件，当联动部件处于第二位置时，通过拨动件驱动受力件进去驱动联动部件复位到第一位置，即击发设备复位到初始状态。2. The firing device provided by the present invention is provided with a reset mechanism, which includes a force-bearing member and a toggle member. When the linkage member is in the second position, the toggle member drives the force-bearing member to drive the linkage member to reset to the first position, that is, the firing device is reset to the initial state.

该击发设备可以在使用前对其进行实验性击发测试，测试其防二次击发装置等部件的功能是否正常可靠，在完成测试后可将击发设备复位到初始状态。The firing device can be subjected to an experimental firing test before use to test whether the functions of its components such as the anti-secondary firing device are normal and reliable. After the test is completed, the firing device can be reset to the initial state.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

图1为本发明实施例1中提供的击发设备剖视图；FIG1 is a cross-sectional view of a firing device provided in Embodiment 1 of the present invention;

图2为图1中击发设备处于可击发状态时的剖视图；FIG2 is a cross-sectional view of the firing device in FIG1 in a firing state;

图3为图1中击发设备防二次击发装置启动时的剖视图；FIG3 is a cross-sectional view of the firing device of FIG1 when the anti-secondary firing device is activated;

图4为图1中击发设备的第一运动部件结构示意图；FIG4 is a schematic structural diagram of a first moving component of the firing device in FIG1 ;

图5为图1中击发设备的锁定件侧视图；FIG5 is a side view of a locking member of the firing device of FIG1 ;

图6为图1中击发设备的锁定件结构示意图；FIG6 is a schematic diagram of the locking structure of the firing device in FIG1 ;

图7为图1中击发设备的锁定件剖视图；FIG7 is a cross-sectional view of a locking member of the firing device of FIG1 ;

图8为图1中击发设备的第三运动部件结构示意图；FIG8 is a schematic structural diagram of a third moving component of the firing device in FIG1 ;

图9为图1中击发设备的联动部件与限位件结构示意图；FIG9 is a schematic diagram of the linkage components and the limiting components of the firing device in FIG1 ;

图10为图1中击发设备的联动部件俯视图；FIG10 is a top view of the linkage components of the firing device in FIG1 ;

图11为图1中击发设备的限位件结构示意图；FIG11 is a schematic diagram of the structure of a limiting member of the firing device in FIG1 ;

图12为图1中击发设备的联动部件结构示意图；FIG12 is a schematic diagram of the structure of the linkage components of the firing device in FIG1 ;

图13为图1中击发设备的壳体剖视图；FIG13 is a cross-sectional view of the housing of the firing device in FIG1 ;

图14为图1中击发设备的第二运动部件的结构示意图；FIG14 is a schematic structural diagram of a second moving component of the firing device in FIG1 ;

图15为图1中击发设备的过渡件结构示意图；FIG15 is a schematic diagram of the transition piece structure of the firing device in FIG1 ;

图16为图1中击发设备的过渡件剖视图；FIG16 is a cross-sectional view of a transition piece of the firing device of FIG1 ;

图17为图1中击发设备的过渡件侧视图；FIG17 is a side view of a transition piece of the firing device of FIG1 ;

图18为图1中击发设备的钉砧组件结构示意图；FIG18 is a schematic structural diagram of an anvil assembly of the firing device in FIG1 ;

图19为图1中击发设备的推钉头结构示意图；FIG19 is a schematic diagram of the structure of the nail pushing head of the firing device in FIG1 ;

图20为图1中击发设备的钉筒结构示意图；FIG20 is a schematic diagram of the nail barrel structure of the firing device in FIG1 ;

附图标记说明：Description of reference numerals:

1-基架；11-第一限位部；12-第二限位部；121-第一导向槽；122-第一限位孔；13-第三限位部；14-第四限位部；15-第五限位部；16-第六限位部；1-base frame; 11-first limiting portion; 12-second limiting portion; 121-first guide groove; 122-first limiting hole; 13-third limiting portion; 14-fourth limiting portion; 15-fifth limiting portion; 16-sixth limiting portion;

2-第一运动部件；21-第一抵持部；2-first moving component; 21-first abutting portion;

3-第二运动部件；31-位区域；32-第二抵持部；33-第一台阶；34-导向部；35-第二铰接点；3-second moving part; 31-position area; 32-second abutting portion; 33-first step; 34-guide portion; 35-second hinge point;

4-第三运动部件；41-拨动件；42-第二驱动件；4-third moving member; 41-moving member; 42-second driving member;

5-操作部件；51-第一铰接点；52-支杆；53-第三铰接点；5-operating part; 51-first hinge point; 52-support rod; 53-third hinge point;

6-钉筒组件；61-钉筒；62-钉仓；63-推钉头；6-nail barrel assembly; 61-nail barrel; 62-nail magazine; 63-nail pusher head;

7-钉砧组件；71-钉砧头；72-钉砧杆；7-nail anvil assembly; 71-nail anvil head; 72-nail anvil rod;

81-过渡件；811-第一端板；812-第二导向槽；813-第二台阶；814-第一支撑部；815-第二支撑部；816-安装通孔；817-第一通道；818-第二底壁；82-锁定件；821-突出部；8211-第三导向面；822-第一限位柱；823-第二通道；83-第一复位件；84-第二复位件；85-第三复位件；81-transition piece; 811-first end plate; 812-second guide groove; 813-second step; 814-first support portion; 815-second support portion; 816-mounting through hole; 817-first channel; 818-second bottom wall; 82-locking piece; 821-protrusion; 8211-third guide surface; 822-first limiting column; 823-second channel; 83-first reset piece; 84-second reset piece; 85-third reset piece;

91-联动部件；911-第二限位柱；912-第一导向面；913-第一滑槽；914-第二滑槽；915-第一侧壁；916-第二侧壁；917-第一底壁；919-第一导向壁；92-受力件；921-第二导向面；93-限位件；931-限位销；932-卡槽；933-让位空间；94-第一驱动件。91-linkage component; 911-second limiting column; 912-first guide surface; 913-first slide groove; 914-second slide groove; 915-first side wall; 916-second side wall; 917-first bottom wall; 919-first guide wall; 92-force bearing member; 921-second guide surface; 93-limiting member; 931-limiting pin; 932-slot; 933-allowance space; 94-first driving member.

具体实施方式Detailed ways

下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”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。In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；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。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

本发明中所描述的表达位置与方向的词“近端”、“远端”，均是以器械操作者作为参照(未图示)，靠近操作者的一端为近端，远离操作者的一端为远端。The words "proximal" and "distal" used in the present invention to express position and direction are all based on the instrument operator (not shown), the end closer to the operator is the proximal end, and the end farther from the operator is the distal end.

此外，下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

实施例1Example 1

本实施例提供一种击发设备，如图1所示，其包括基架1，钉砧组件7、钉筒组件6、第二驱动件42、第一运动部件2、第二运动部件3、第三运动部件4、操作部件5、支杆52、第一复位件83、限位机构、复位机构以及防二次击发装置；其中击发设备为吻合器；限位机构包括第二复位件84、过渡件81、锁定件82；复位机构包括第三复位件85、拨动件41、受力件92。The present embodiment provides a firing device, as shown in Figure 1, which includes a base frame 1, an anvil assembly 7, a nail barrel assembly 6, a second driving member 42, a first moving component 2, a second moving component 3, a third moving component 4, an operating component 5, a support rod 52, a first reset member 83, a limiting mechanism, a reset mechanism and an anti-secondary firing device; wherein the firing device is a stapler; the limiting mechanism includes a second reset member 84, a transition member 81, and a locking member 82; the reset mechanism includes a third reset member 85, a toggle member 41, and a force-bearing member 92.

如图13所示，基架1为吻合器的壳体，壳体优选为由左壳体与右壳体构成；壳体具有沿其轴向贯穿的内腔，在壳体的内壁面上由远端朝近端依次设有第四限位部14、第五限位部15、第六限位部16、第一限位部11、第二限位部12、第三限位部13。As shown in Figure 13, the base frame 1 is the shell of the anastomosis device, and the shell is preferably composed of a left shell and a right shell; the shell has an inner cavity running through it along its axial direction, and the fourth limiting portion 14, the fifth limiting portion 15, the sixth limiting portion 16, the first limiting portion 11, the second limiting portion 12, and the third limiting portion 13 are arranged on the inner wall surface of the shell in sequence from the distal end to the proximal end.

如图1和图8所示，第三运动部件4优选为设置在壳体内腔中的丝杆，第三运动部件4可沿壳体轴向朝壳体远端或壳体近端运动；第三运动部件4的外壁面上设有拨动件41，拨动件41沿第三运动部件4的径向向外延伸，拨动件41优选为销。As shown in Figures 1 and 8, the third moving component 4 is preferably a screw arranged in the inner cavity of the shell, and the third moving component 4 can move along the axial direction of the shell toward the distal end or the proximal end of the shell; a toggle member 41 is provided on the outer wall surface of the third moving component 4, and the toggle member 41 extends radially outward along the third moving component 4, and the toggle member 41 is preferably a pin.

第二驱动件42设置在壳体的近端上并套设在第三运动部件4的近端，并且，第三运动部件4的近端与第二驱动件42螺纹配合，第二驱动件42优选为旋钮；操作者沿顺时针方向转动旋钮，通过旋钮与第三运动部件4之间的螺纹配合，驱使第三运动部件4朝壳体近端方向运动；操作者沿逆时针方向转动旋钮，驱使第三运动部件4朝壳体远端方向运动。The second driving member 42 is arranged on the proximal end of the shell and is sleeved on the proximal end of the third moving component 4, and the proximal end of the third moving component 4 is threadedly matched with the second driving member 42, and the second driving member 42 is preferably a knob; the operator rotates the knob in a clockwise direction, and the third moving component 4 is driven to move toward the proximal end of the shell through the threaded cooperation between the knob and the third moving component 4; the operator rotates the knob in a counterclockwise direction to drive the third moving component 4 to move toward the distal end of the shell.

如图1、图4、图8、图13所示，第一运动部件2优选为推钉杆，其设置在壳体内腔远端对应第四限位部14以及第五限位部15的位置处，并且套设在第三运动部件4的远端上；第一运动部件2可沿壳体的轴向朝远端或者近端运动。第一运动部件2的近端设有沿其径向向外延伸的一圈第一抵持部21。As shown in Fig. 1, Fig. 4, Fig. 8 and Fig. 13, the first moving part 2 is preferably a nail pushing rod, which is arranged at the position corresponding to the fourth limiting part 14 and the fifth limiting part 15 at the distal end of the inner cavity of the shell, and is sleeved on the distal end of the third moving part 4; the first moving part 2 can move toward the distal end or the proximal end along the axial direction of the shell. The proximal end of the first moving part 2 is provided with a circle of first abutting parts 21 extending radially outward.

第一复位件83套设在第一运动部件2的外壁面上，其近端抵靠在第一抵持部21上，其远端抵靠在第四限位部14上，第一复位件83具有朝向壳体近端的第一偏压力；在没有其它外力作用而仅在第一偏压力的作用下，第一抵持部21抵靠在第五限位部15上，此时第一运动部件2处于其起始位置；如此，使得第一运动部件2在第一复位件83的作用下，始终保持向壳体近端运动的趋势，第一复位件83优选为压缩弹簧。The first reset member 83 is sleeved on the outer wall surface of the first movable component 2, with its proximal end abutting against the first abutting portion 21, and its distal end abutting against the fourth limiting portion 14. The first reset member 83 has a first biasing force toward the proximal end of the shell; in the absence of other external forces and only under the action of the first biasing force, the first abutting portion 21 abuts against the fifth limiting portion 15, and the first movable component 2 is in its starting position. In this way, the first movable component 2 always maintains a tendency to move toward the proximal end of the shell under the action of the first reset member 83, and the first reset member 83 is preferably a compression spring.

如图1、图13-图14、图16-图17所示，过渡件81设置在第一限位部11与第二限位部12之间；所述过渡件81位于拨动件41与第二运动部件3近端之间；初始状态时，所述过渡件81的远端抵持于所述第一限位部11。过渡件81对称的两内壁面上设有沿壳体轴向延伸的第二导向槽812；过渡件81的远端还设有可供第三运动部件4穿过的第一端板811；第一端板811的近端端面与第二运动部件3的远端端面相互正对并适于相互抵靠。As shown in Fig. 1, Fig. 13-Fig. 14, Fig. 16-Fig. 17, the transition piece 81 is arranged between the first limiting portion 11 and the second limiting portion 12; the transition piece 81 is located between the toggle member 41 and the proximal end of the second moving component 3; in the initial state, the distal end of the transition piece 81 abuts against the first limiting portion 11. The two symmetrical inner wall surfaces of the transition piece 81 are provided with a second guide groove 812 extending along the axial direction of the shell; the distal end of the transition piece 81 is also provided with a first end plate 811 through which the third moving component 4 can pass; the proximal end surface of the first end plate 811 and the distal end surface of the second moving component 3 are opposite to each other and are suitable for abutting against each other.

如图14所示，第二运动部件3优选为滑套，其套设在第三运动部件4的相对近端并可沿壳体轴向朝远端或近端运动；第二运动部件3的近端设有沿其径向向内凹陷的第一台阶33，在第一台阶33远端处还设有沿第二运动部件3径向向外延伸的第二抵持部32；第二运动部件3对称的两侧壁面上分别设有沿壳体轴向延伸的导向部34，过渡件81沿轴向设有导向槽812，所述导向部34穿设在第二导向槽812中，以获得可靠的运动；第二运动部件3的顶端外壁面上设有向内凹陷的限位区域31。As shown in Figure 14, the second moving component 3 is preferably a sliding sleeve, which is sleeved on the relatively proximal end of the third moving component 4 and can move toward the distal end or proximal end along the axial direction of the shell; the proximal end of the second moving component 3 is provided with a first step 33 that is radially recessed inwardly, and a second abutting portion 32 that extends radially outwardly along the second moving component 3 is also provided at the distal end of the first step 33; the second moving component 3 is symmetrically provided with guide portions 34 extending axially along the shell on both side walls, and the transition piece 81 is axially provided with a guide groove 812, and the guide portion 34 is penetrated in the second guide groove 812 to obtain reliable movement; the top outer wall surface of the second moving component 3 is provided with a limiting area 31 recessed inwardly.

如图1所示，第三复位件85套设在第三运动部件4的外壁面上，第三复位件85的近端抵靠在第三限位部13上，第三复位件85的远端套设在第一台阶33上；第三复位件85具有朝向壳体远端的且远小于第一偏压力的第三偏压力；因此在无其它外力且仅在第三偏压力的作用下，第二抵持部32抵靠在第二限位部12上，并且第二运动部件3的远端端面抵靠在第一端板811的近端端面上，此时第二运动部件3处于其初始位置；如此，使得第二运动部件3在第三复位件85的作用下，始终保持向壳体远端运动的趋势，第三复位件85优选为压缩弹簧。As shown in Figure 1, the third reset member 85 is sleeved on the outer wall surface of the third movable component 4, the proximal end of the third reset member 85 abuts on the third limiting portion 13, and the distal end of the third reset member 85 is sleeved on the first step 33; the third reset member 85 has a third biasing force toward the distal end of the shell and is much smaller than the first biasing force; therefore, in the absence of other external forces and only under the action of the third biasing force, the second abutting portion 32 abuts on the second limiting portion 12, and the distal end face of the second movable component 3 abuts on the proximal end face of the first end plate 811, and the second movable component 3 is in its initial position at this time; in this way, the second movable component 3 always maintains a tendency to move toward the distal end of the shell under the action of the third reset member 85, and the third reset member 85 is preferably a compression spring.

如图1、图4、图14所示，操作部件5优选为把手，把手的远端通过转动销铰接在第一运动部件2的近端，铰接点为第一铰接点51，把手的近端经壳体侧壁上的开口伸出到壳体外部，把手的外形适于人体的手部握持。As shown in Figures 1, 4 and 14, the operating component 5 is preferably a handle, the distal end of the handle is hinged to the proximal end of the first moving component 2 through a rotating pin, the hinge point is the first hinge point 51, the proximal end of the handle extends to the outside of the shell through an opening on the side wall of the shell, and the shape of the handle is suitable for human hand holding.

支杆52的远端铰接在把手近端上形成第三铰接点53；支杆52的近端铰接在第二运动部件3的远端，形成第二铰接点35。The distal end of the support rod 52 is hinged on the proximal end of the handle to form a third hinge point 53 ; the proximal end of the support rod 52 is hinged on the distal end of the second moving component 3 to form a second hinge point 35 .

吻合器处于初始状态时，第一复位件83作用于第一运动部件2，使得第一抵持部21抵靠在第五限位部15上；同时，由于第三复位件85的作用，使得第二抵持部32抵靠在第二限位部12的上部，第二运动部件3的远端端面抵靠在第一端板811的近端端面上。由于把手的远端通过第一铰接点51铰接在第一运动部件2上；在近端通过第二铰接点35连接在第二运动部件3上；因此，在初始状态下，把手在第一铰接点51以及第二铰接点35的作用下，可以保持一个稳定的张开角度。When the stapler is in the initial state, the first reset member 83 acts on the first moving part 2, so that the first abutting portion 21 abuts against the fifth limiting portion 15; at the same time, due to the action of the third reset member 85, the second abutting portion 32 abuts against the upper part of the second limiting portion 12, and the distal end surface of the second moving part 3 abuts against the proximal end surface of the first end plate 811. Since the distal end of the handle is hinged to the first moving part 2 through the first hinge point 51, and the proximal end is connected to the second moving part 3 through the second hinge point 35, therefore, in the initial state, the handle can maintain a stable opening angle under the action of the first hinge point 51 and the second hinge point 35.

如图1、图5-图8、图13-图17所示，过渡件81上还开设沿壳体径向贯穿的安装通孔816，限位区域31沿壳体轴向的宽度不小于安装通孔816沿壳体轴向的宽度；锁定件82沿壳体径向可滑动地设置在安装通孔816中，锁定件82的远端端面以及近端端面分别与安装通孔816的远端端面以及近端端面相接触，如此使得锁定件82可沿安装通孔816近端及远端的内壁面滑动。As shown in Figures 1, 5-8, and 13-17, a mounting hole 816 is also provided on the transition piece 81, which penetrates the shell in a radial direction, and the width of the limiting area 31 along the axial direction of the shell is not less than the width of the mounting hole 816 along the axial direction of the shell; the locking piece 82 is slidably arranged in the mounting hole 816 in a radial direction of the shell, and the distal end face and the proximal end face of the locking piece 82 are respectively in contact with the distal end face and the proximal end face of the mounting hole 816, so that the locking piece 82 can slide along the inner wall surfaces of the proximal and distal ends of the mounting hole 816.

如图5所示，锁定件82背向第三运动部件4轴向的一侧外壁面上成型有第一限位柱822，第二复位件84一端套设在第一限位柱822上，另一端抵靠在壳体的内壁面上；第二复位件84具有朝向第三运动部件4轴向的第二偏压力，第二复位件84优选为压缩弹簧。As shown in Figure 5, a first limiting column 822 is formed on the outer wall surface of the locking member 82 on the axial side facing away from the third moving component 4, and one end of the second reset member 84 is sleeved on the first limiting column 822, and the other end is against the inner wall surface of the shell; the second reset member 84 has a second biasing force axially toward the third moving component 4, and the second reset member 84 is preferably a compression spring.

在吻合器处于可击发状态时，限位区域31与安装通孔816正对，此时锁定件82朝向第三运动部件4的一端在第二复位件84的作用下部分插入到限位区域31中，此时锁定件82处于第三位置，过渡件81与第二运动部件3通过锁定件82锁定为一个整体，即第二运动部件3相对于壳体处于固定状态。When the stapler is in a fireable state, the limiting area 31 is opposite to the mounting through hole 816. At this time, one end of the locking member 82 facing the third movable component 4 is partially inserted into the limiting area 31 under the action of the second reset member 84. At this time, the locking member 82 is in the third position, and the transition member 81 and the second movable component 3 are locked as a whole through the locking member 82, that is, the second movable component 3 is in a fixed state relative to the shell.

当第二运动部件3相对于壳体处于固定状态时，第二铰接点35构成了把手的转动支点，即吻合器处于如图2所示的可击发状态；此时按下把手，在把手的驱动下，第一运动部件2可从其起始位置运动到作用位置，而第二运动部件3保持不动。When the second movable component 3 is in a fixed state relative to the shell, the second hinge point 35 constitutes the rotation fulcrum of the handle, that is, the stapler is in a fireable state as shown in Figure 2; at this time, when the handle is pressed, the first movable component 2 can move from its starting position to the working position under the drive of the handle, while the second movable component 3 remains stationary.

如图5-图7、图15-图17所示，过渡件81沿壳体轴向开设有第一通道817，第一通道817与安装通孔816相连；锁定件82沿壳体轴向开设有第二通道823，第二通道823与第一通道817至少可部分连通；第二通道823远离第三运动部件4的一侧内壁面上设置有沿壳体径向延伸出来的突出部821，突出部821的纵向截面为“梯形”，“梯形”的长边设置在第二通道823内壁面上，“梯形”的短边远离第二通道823内壁面，“梯形”的腰对应为突出部821的两个倾斜的第三导向面8211。As shown in Figures 5 to 7 and Figures 15 to 17, the transition piece 81 is provided with a first channel 817 along the axial direction of the shell, and the first channel 817 is connected to the mounting through hole 816; the locking piece 82 is provided with a second channel 823 along the axial direction of the shell, and the second channel 823 is at least partially connected to the first channel 817; the second channel 823 is provided with a protrusion 821 extending radially along the shell on the inner wall surface on the side away from the third moving part 4, and the longitudinal cross-section of the protrusion 821 is a "trapezoidal" shape, and the long side of the "trapezoidal" is provided on the inner wall surface of the second channel 823, and the short side of the "trapezoidal" is away from the inner wall surface of the second channel 823, and the waist of the "trapezoidal" corresponds to the two inclined third guide surfaces 8211 of the protrusion 821.

第一通道817远端的底部内壁面上设有沿壳体径向突出的第一支撑部814及所述第一支撑部814远端的第二底壁818；第一通道817近端的底部内壁面上设有沿壳体径向突出的第二支撑部815，第一支撑部814与第二支撑部815的远端均为倾斜的导向面。A first support portion 814 protruding radially along the shell and a second bottom wall 818 at the distal end of the first support portion 814 are provided on the bottom inner wall surface at the distal end of the first channel 817; a second support portion 815 protruding radially along the shell is provided on the bottom inner wall surface at the proximal end of the first channel 817, and the distal ends of the first support portion 814 and the second support portion 815 are both inclined guide surfaces.

如图1、图5-图7、图9-图13、图15-图17所示，防二次击发装置包括联动部件91、限位件93、第一驱动件94以及第六限位部16，第六限位部16设置在壳体内壁面上并位于第五限位部15与第一限位部11之间。As shown in Figures 1, 5-7, 9-13, and 15-17, the anti-secondary firing device includes a linkage component 91, a limiting component 93, a first driving component 94 and a sixth limiting portion 16. The sixth limiting portion 16 is arranged on the inner wall surface of the shell and is located between the fifth limiting portion 15 and the first limiting portion 11.

第二限位部12的上部设有第一限位孔122，限位件93的近端设有与第一限位孔122相配合的卡槽932，限位件93通过卡槽932与第一限位孔122的配合固定在第二限位部12上；限位件93的远端穿过第一通道817以及第二通道823后伸出到过渡件81的外部，初始状态下，限位件93底部壁面抵靠在第二支撑部815上；限位件93的远端侧壁面上设有对称的两个限位部，限位部优选为限位销931。A first limiting hole 122 is provided at the upper portion of the second limiting portion 12, and a slot 932 matching with the first limiting hole 122 is provided at the proximal end of the limiting member 93, and the limiting member 93 is fixed to the second limiting portion 12 by the matching of the slot 932 and the first limiting hole 122; the distal end of the limiting member 93 passes through the first channel 817 and the second channel 823 and extends to the outside of the transition member 81, and in the initial state, the bottom wall of the limiting member 93 abuts against the second supporting portion 815; two symmetrical limiting portions are provided on the distal side wall of the limiting member 93, and the limiting portion is preferably a limiting pin 931.

限位件93朝向突出部821的一侧壁面上设有向内凹陷的让位空间933，当锁定件82处于第三位置时，突出部821处于让位空间933内。A recessed space 933 is formed on a wall surface of the limiting member 93 facing the protruding portion 821 . When the locking member 82 is at the third position, the protruding portion 821 is located in the recessed space 933 .

当吻合器处于如图2所示的固定状态，即可击发状态且没有按下把手进行击发时，联动部件91的的近端经过第一通道817并伸入第二通道823中；联动部件91近端端部朝向突出部821的一侧设有倒角，倒角优选为倾斜的第一导向面912；联动部件91近端开设有从近端端部向远端延伸的第一滑槽913，第一滑槽913沿壳体径向方向上贯穿联动部件91的近端，在联动部件91的近端形成对应第一滑槽913的第一侧壁915与第二侧壁916；第一侧壁915与第二侧壁916的远端上部开设有对称的第二滑槽914，限位件93的远端设置在第一滑槽913内；联动部件91的远端上壁面上设有第二限位柱911，第一驱动件94的远端套设在第二限位柱911上，其近端抵靠在第六限位部16上，第一驱动件94具有朝向第三运动部件4轴向并偏向壳体远端方向的第五偏压力；联动部件91远端两侧壁面上对称的设有两个向外延伸的翼状受力件92，受力件92朝向第三运动部件4的端面为倾斜的第二导向面921，第二导向面921适于与拨动件41相配合。When the stapler is in a fixed state as shown in FIG. 2 , i.e., a firing state, and the handle is not pressed for firing, the proximal end of the linkage component 91 passes through the first channel 817 and extends into the second channel 823; a chamfer is provided on the side of the proximal end of the linkage component 91 facing the protrusion 821, and the chamfer is preferably an inclined first guide surface 912; a first slide groove 913 extending from the proximal end to the distal end is provided at the proximal end of the linkage component 91, and the first slide groove 913 passes through the proximal end of the linkage component 91 in the radial direction of the shell, and a first side wall 915 and a second side wall 916 corresponding to the first slide groove 913 are formed at the proximal end of the linkage component 91; the first side wall 915 and the second side wall 916 are formed at the proximal end of the linkage component 91; A symmetrical second slide groove 914 is provided on the upper distal end of the linkage component 91, and the distal end of the limit member 93 is arranged in the first slide groove 913; a second limit column 911 is provided on the distal upper wall of the linkage component 91, and the distal end of the first driving component 94 is sleeved on the second limit column 911, and its proximal end abuts against the sixth limit portion 16, and the first driving component 94 has a fifth biasing force axially toward the third moving component 4 and biased toward the distal end of the shell; two wing-shaped force-bearing members 92 extending outward are symmetrically provided on the wall surfaces on both sides of the distal end of the linkage component 91, and the end face of the force-bearing member 92 facing the third moving component 4 is an inclined second guide surface 921, and the second guide surface 921 is suitable for cooperating with the toggle member 41.

如图12所示，联动部件91的远端设有第一底壁917，及位于所述第一底壁远端的第一导向壁919；当吻合器处于如图2所示的可击发状态且没有按下把手进行击发时，限位销931位于两个第二滑槽914的近端，所述第一导向壁919位于所述第一支撑部814的远端，所述第一底壁917抵持于所述第一支撑部814上；所述联动部件91近端的第一导向面912位于所述突出部821的远端，联动部件91的远端沿壳体径向搭接在第一运动部件2的侧壁面上，此时，联动部件91处于第一位置。As shown in Figure 12, the distal end of the linkage component 91 is provided with a first bottom wall 917 and a first guide wall 919 located at the distal end of the first bottom wall; when the stapler is in the fireable state as shown in Figure 2 and the handle is not pressed for firing, the limit pin 931 is located at the proximal end of the two second slide grooves 914, the first guide wall 919 is located at the distal end of the first support portion 814, and the first bottom wall 917 is abutted against the first support portion 814; the first guide surface 912 at the proximal end of the linkage component 91 is located at the distal end of the protrusion 821, and the distal end of the linkage component 91 is overlapped on the side wall surface of the first moving component 2 along the radial direction of the shell, and at this time, the linkage component 91 is in the first position.

当吻合器处于如图2所示的可击发状态时，按下把手，驱动第一运动部件2从起始位置运动到作用位置，压缩第一复位件83，此时联动部件91的远端在第一驱动件94的作用下绕限位销931转动并朝向第三运动部件4轴线方向运动，最终搭接在第三运动部件4的外壁面上，联动部件91的远端端面与第一运动部件2的近端端面在壳体轴向上的投影相互干涉。When the stapler is in the fireable state as shown in Figure 2, the handle is pressed to drive the first movable component 2 to move from the starting position to the action position, compressing the first reset component 83. At this time, the distal end of the linkage component 91 rotates around the limit pin 931 under the action of the first drive component 94 and moves toward the axis of the third movable component 4, and finally overlaps the outer wall surface of the third movable component 4. The projections of the distal end face of the linkage component 91 and the proximal end face of the first movable component 2 in the axial direction of the shell interfere with each other.

然后松开把手，第一运动部件2在第一复位件83的作用下从作用位置向起始位置运动，进而通过第一运动部件2近端端面与联动部件91远端端面的抵接来驱动联动部件91朝壳体近端运动，使得联动部件91上的第二导向面921与突出部821上的第三导向面8211抵接，从而驱动锁定件82朝向第三运动部件4的一端从限位区域31中脱出，突出部821的底部端面抵靠在联动部件91近端的顶部端面上，此时锁定件82处于第四位置；限位销931从第二滑槽914中脱出，联动部件91近端的底部端面抵靠在第一支撑部814上，使得锁定件82保持从限位区域31中脱出的第四位置，过渡件81与第二运动部件3解除相互之间的锁定；Then, the handle is released, and the first moving component 2 moves from the acting position to the starting position under the action of the first reset member 83, and then the linkage component 91 is driven to move toward the proximal end of the shell through the abutment between the proximal end face of the first moving component 2 and the distal end face of the linkage component 91, so that the second guide surface 921 on the linkage component 91 abuts against the third guide surface 8211 on the protrusion 821, thereby driving the locking member 82 to disengage from the limiting area 31 toward one end of the third moving component 4, and the bottom end face of the protrusion 821 abuts against the top end face of the proximal end of the linkage component 91. At this time, the locking member 82 is in the fourth position; the limiting pin 931 disengages from the second slide groove 914, and the bottom end face of the proximal end of the linkage component 91 abuts against the first support portion 814, so that the locking member 82 remains in the fourth position of disengaging from the limiting area 31, and the transition member 81 and the second moving component 3 are unlocked from each other;

由于第一偏压力远大于第三偏压力，所以第二运动部件3相对于第一运动部件2是可移动的，而第一运动部件2相对于第二运动部件3是固定的，此时第二运动部件3处于移动状态，第一铰接点51构成把手的转动支点；此时按下把手，把手驱动支杆52从而带动第二运动部件3朝壳体近端运动，而第一运动部件2保持其起始位置不动，此时，联动部件91处于其第二位置，即防二次击发装置启动，吻合器转换到如图3所示的第一次击发后的击发失效状态。Since the first bias force is much greater than the third bias force, the second moving component 3 is movable relative to the first moving component 2, and the first moving component 2 is fixed relative to the second moving component 3. At this time, the second moving component 3 is in a moving state, and the first hinge point 51 constitutes the rotation fulcrum of the handle; at this time, the handle is pressed, and the handle drives the support rod 52 to drive the second moving component 3 to move toward the proximal end of the shell, while the first moving component 2 maintains its starting position. At this time, the linkage component 91 is in its second position, that is, the anti-secondary firing device is activated, and the anastomosis device is converted to the firing failure state after the first firing as shown in Figure 3.

当吻合器处于如图3所示的第一次击发后的击发失效状态时，操作者沿逆时针方向转动旋钮，驱使第三运动部件4朝壳体远端运动从而带动拨动件41朝壳体远端运动，此时拨动件41从第五位置向第六位置运动并与受力件92上的第二导向面921抵接，进而通过拨动件41对第二导向面921的抵接作用驱使联动部件91的远端朝远离第三运动部件4轴向的方向运动，联动部件91的远端复位到沿径向搭接在第一运动部件2侧壁面上的第一位置，第一导向面912远离突出部821；同时，所述过渡件81在失去所述拨动件41的作用后在所述第三复位件85的作用下向远端移动抵接于所述第一限位部11，所述限位区域31与所述安装通孔816错开，此时整个吻合器复位到初始状态。When the stapler is in the firing failure state after the first firing as shown in Figure 3, the operator turns the knob counterclockwise to drive the third moving component 4 to move toward the distal end of the shell, thereby driving the toggle member 41 to move toward the distal end of the shell. At this time, the toggle member 41 moves from the fifth position to the sixth position and abuts against the second guide surface 921 on the force-bearing member 92, and then the distal end of the linkage component 91 is driven to move in the axial direction away from the third moving component 4 through the abutment of the toggle member 41 on the second guide surface 921. The distal end of the linkage component 91 is reset to the first position radially overlapped on the side wall surface of the first moving component 2, and the first guide surface 912 is away from the protrusion 821; at the same time, after losing the effect of the toggle member 41, the transition member 81 moves distally under the action of the third reset member 85 to abut against the first limiting portion 11, and the limiting area 31 is staggered with the mounting through hole 816. At this time, the entire stapler is reset to its initial state.

如图1、图19、图20所示，钉筒组件6包括钉筒61、推钉头63以及缝合钉，钉筒61安装在壳体的远端开口处，第一运动部件2与第三运动部件4的远端均伸入钉筒61近端的内腔中，钉筒61远端设有环形的钉仓62，缝合钉沿钉仓62的周向分布设置在钉仓62中。As shown in Figures 1, 19 and 20, the nail barrel assembly 6 includes a nail barrel 61, a nail pusher head 63 and suture staples. The nail barrel 61 is installed at the distal opening of the shell, and the distal ends of the first moving component 2 and the third moving component 4 both extend into the inner cavity at the proximal end of the nail barrel 61. An annular staple magazine 62 is provided at the distal end of the nail barrel 61, and the suture staples are distributed in the staple magazine 62 along the circumference of the staple magazine 62.

推钉头63可滑动地设置在钉筒61的内腔中并且优选为与钉筒61内腔相配合的结构，其近端与第一运动部件2的远端连接，远端正对缝合钉并适于将缝合钉从钉仓62中顶出；推钉头63远端对应缝合钉的内圈位置处设有环形刀片。The nail pushing head 63 can be slidably arranged in the inner cavity of the nail barrel 61 and is preferably a structure that cooperates with the inner cavity of the nail barrel 61. Its proximal end is connected to the distal end of the first moving part 2, and the distal end is opposite to the suture nail and is suitable for ejecting the suture nail from the nail magazine 62; an annular blade is provided at the distal end of the nail pushing head 63 corresponding to the inner circle position of the suture nail.

如图1与图18所示，钉砧组件7包括钉砧头71以及钉砧杆72，钉砧头71相隔一定距离设置在钉仓62的远端并正对缝合钉，钉砧头71近端设有正对每个缝合钉的凹槽；钉砧头71优选为类似圆锥形的结构，圆锥形结构的底部位于近端，顶部位于远端；钉砧杆72穿设在钉筒61以及推钉头63的内腔中，钉砧杆72的近端通过销钉连接在第三运动部件4的远端上，钉砧杆72的远端固定连接在钉砧头71近端的中心位置处。As shown in Figures 1 and 18, the anvil assembly 7 includes an anvil head 71 and an anvil rod 72. The anvil head 71 is arranged at a certain distance at the distal end of the nail magazine 62 and faces the suture nails. The proximal end of the anvil head 71 is provided with a groove facing each suture nail; the anvil head 71 is preferably a cone-shaped structure, the bottom of the cone structure is located at the proximal end, and the top is located at the distal end; the anvil rod 72 is penetrated into the inner cavity of the nail barrel 61 and the nail pushing head 63, the proximal end of the anvil rod 72 is connected to the distal end of the third moving part 4 by a pin, and the distal end of the anvil rod 72 is fixedly connected to the center position of the proximal end of the anvil head 71.

钉砧头71在第三运动部件4的带动下可沿壳体轴向往复运动，推钉头63在第一运动部件2的带动下可沿壳体轴向往复运动，当钉砧头71与缝合钉相距预设距离时，推钉头63朝壳体远端运动并将缝合钉顶出钉仓62，进而将位于钉砧头71近端与钉仓62远端之间的组织缝合，同时，推钉头63上的环形刀片将缝合后的多余组织切下。The anvil head 71 can reciprocate along the axial direction of the shell under the drive of the third moving part 4, and the nail pushing head 63 can reciprocate along the axial direction of the shell under the drive of the first moving part 2. When the anvil head 71 is at a preset distance from the suture nail, the nail pushing head 63 moves toward the distal end of the shell and pushes the suture nail out of the nail magazine 62, thereby suturing the tissue between the proximal end of the anvil head 71 and the distal end of the nail magazine 62. At the same time, the annular blade on the nail pushing head 63 cuts off the excess tissue after suturing.

该吻合器设置防二次击发装置，在第一次击发完成并松开把手后，在第一运动部件2从作用位置复位到起始位置的过程中，通过驱动联动部件91朝近端运动进而将第二运动部件3从固定状态转换到移动状态，即将吻合器从可击发状态自动转换为击发失效状态。该吻合器可以在第一次击发后通过防二次击发装置自动转换成击发失效状态，可以避免在第一次击发后因误碰把手使得吻合器再次击发导致手术失败的情况发生，可靠性强。The stapler is provided with a device to prevent secondary firing. After the first firing is completed and the handle is released, in the process of the first moving part 2 being reset from the action position to the starting position, the second moving part 3 is converted from the fixed state to the moving state by driving the linkage part 91 to move toward the proximal end, that is, the stapler is automatically converted from the firing state to the firing failure state. The stapler can be automatically converted to the firing failure state by the device to prevent secondary firing after the first firing, which can avoid the situation that the stapler is fired again due to the accidental touching of the handle after the first firing, resulting in the failure of the operation, and has high reliability.

防二次击发装置上还设有受力件92，当联动部件91处于第二位置，吻合器处于击发失效状态时，通过拨动件41与受力件92的作用，将联动部件91复位到第一位置，即将吻合器复位到第一次击发前的初始状态。使得该吻合器可以在手术前对其进行实验性的击发测试，测试其防二次击发装置等部件的功能是否正常可靠，这对于保证手术的成功是至关重要的，在完成测试后可将吻合器复位到初始状态，开始进行手术。The anti-secondary firing device is also provided with a force-bearing member 92. When the linkage member 91 is in the second position and the stapler is in a firing failure state, the linkage member 91 is reset to the first position through the action of the toggle member 41 and the force-bearing member 92, that is, the stapler is reset to the initial state before the first firing. This allows the stapler to be subjected to an experimental firing test before surgery to test whether the functions of its anti-secondary firing device and other components are normal and reliable, which is crucial to ensuring the success of the surgery. After the test is completed, the stapler can be reset to the initial state to start the surgery.

实施例2Example 2

本实施例提供一种击发设备，其与实施例1中提供的击发设备的结构相比，存在的区别仅在于，壳体、钉筒61以及钉砧头71可以为其它形状的结构，具体结构由使用环形决定，例如，壳体以及钉筒61可以为带有一定弯曲的圆管型结构，更适于伸入到管形组织的内部；This embodiment provides a firing device, which is different from the firing device provided in the first embodiment in that the housing, the nail barrel 61 and the nail anvil head 71 can be structures of other shapes, and the specific structure is determined by the use of a ring. For example, the housing and the nail barrel 61 can be a circular tube structure with a certain curvature, which is more suitable for extending into the interior of a tubular tissue.

作为进一步可替换的实施方式，钉砧头71整体为钟罩结构，钟罩结构的开口位于远端并适于套设在龟头上，此时击发设备为包皮环切吻合器。As a further replaceable embodiment, the anvil head 71 is a bell-shaped structure as a whole, the opening of the bell-shaped structure is located at the distal end and is suitable for being mounted on the glans penis. In this case, the firing device is a circumcision stapler.

实施例3Example 3

本实施例提供一种击发设备，其与实施例1-2中任一实施例提供的击发设备的结构相比，存在的区别仅在于，拨动件41为可滑动地设置在壳体壁面上的拨动销，其一端位于壳体外部并适于操作者手动控制，另一端位于壳体内腔中，通过操作者手动控制拨动销来驱动受力件92，进而将联动部件91从第二位置复位到第一位置。This embodiment provides a firing device, which is different from the firing device provided in any of Embodiments 1-2 in that the driving member 41 is a driving pin slidably arranged on the wall of the shell, one end of which is located outside the shell and suitable for manual control by an operator, and the other end is located in the inner cavity of the shell. The driving pin is manually controlled by the operator to drive the force-bearing member 92, thereby resetting the linkage member 91 from the second position to the first position.

实施例4Example 4

本实施例提供一种击发设备，其与实施例1-3中任一实施例提供的击发设备的结构相比，存在的区别仅在于，第二运动部件3处于其初始位置时，第三复位件85可以不产生第三偏压力，当第二运动部件3朝近端运动时，第三复位件85才产生第三偏压力；This embodiment provides a firing device, which is different from the firing device provided in any of the embodiments 1 to 3 in that when the second moving component 3 is in its initial position, the third restoring member 85 may not generate the third biasing force, and only when the second moving component 3 moves toward the proximal end, the third restoring member 85 generates the third biasing force;

作为进一步可替换的实施方式，可以不设置第二复位件84，操作者通过把手手动驱使第二运动部件3上的限位区域31与安装通孔816正对。As a further alternative embodiment, the second reset member 84 may not be provided, and the operator manually drives the limiting area 31 on the second moving component 3 to face the mounting through hole 816 through the handle.

实施例5Example 5

本实施例提供一种击发设备，其与实施例1-4中任一实施例提供的击发设备的结构相比，存在的区别仅在于，第二驱动件42沿逆时针方向转动，驱使第三运动部件4朝近端运动；进一步地，可以不设置第二驱动件42，操作者通过手动控制第三运动部件4运动，并由穿过壳体壁面抵靠在第三运动部件4外壁面上的紧定螺钉来暂时固定位置。The present embodiment provides a firing device, which differs from the structure of the firing device provided in any of Embodiments 1-4 in that the second driving member 42 rotates in the counterclockwise direction to drive the third moving component 4 to move toward the proximal end; further, the second driving member 42 may not be provided, and the operator manually controls the movement of the third moving component 4 and temporarily fixes the position by a set screw that passes through the shell wall and abuts against the outer wall of the third moving component 4.

实施例6Example 6

本实施例提供一种击发设备，其与实施例1-5中任一实施例提供的击发设备的结构相比，存在的区别仅在于，防二次击发装置可以不设置限位件93而仅设置联动部件91，此时还需要设置第四复位件，第四复位件一端抵靠在第二限位部12上，另一端抵靠在联动部件91的近端，第四复位件具有朝向壳体远端方向的第四偏压力；联动部件91自身具有弹性，当第一运动部件2从起始位置运动到作用位置时，联动部件91通过自身弹性从第一位置运动到第二位置，并通过拨动件41与第四复位件的共同作用复位到第一位置。The present embodiment provides a firing device, which differs from the structure of the firing device provided by any of the embodiments 1-5 in that the anti-secondary firing device may not be provided with a limit member 93 but only with a linkage member 91. In this case, a fourth reset member is also required, one end of the fourth reset member abuts against the second limit member 12, and the other end abuts against the proximal end of the linkage member 91, and the fourth reset member has a fourth biasing force toward the distal end of the shell; the linkage member 91 itself is elastic, and when the first moving member 2 moves from the starting position to the action position, the linkage member 91 moves from the first position to the second position by its own elasticity, and is reset to the first position by the joint action of the toggle member 41 and the fourth reset member.

显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the protection scope of the invention.