技术领域technical field
本发明涉及外科器械，尤其是一种外科手术吻合器，具体地，涉及改进的外科器械，尤其是其控制器及其操作方法，可以单手操作器械实现特定功能。The present invention relates to a surgical instrument, in particular to a surgical stapler, in particular to an improved surgical instrument, especially its controller and its operating method, which can realize specific functions by operating the instrument with one hand.
背景技术Background technique
外科吻合器的作用原理，是通过两个对应的钳口(通常称为钉砧组件和钉仓组件)闭合以夹持组织，然后将吻合器钉仓中的金属缝合钉推出成型，将组织缝合在一起。在有些吻合器中，还装有一把切割刀，用于将缝合好的组织切断开。The working principle of the surgical stapler is to clamp the tissue by closing two corresponding jaws (commonly known as the nail anvil assembly and the staple cartridge assembly), and then push the metal staples in the staple cartridge into shape to suture the tissue together. In some staplers, a cutting knife is also installed to cut off the stitched tissue.
具有上述功能的吻合器包括有一个执行器、中间连接体和控制器。执行器由钉砧组件、钉仓组件和驱动组件组成。钉砧组件包含一个钉成型面，钉成型面包含多排钉槽，钉槽用于金属缝合钉的成型。钉仓组件一般包括钉仓、缝合钉、推钉块和推钉滑块和钉仓座，钉仓的上表面为组织接触面，钉仓安装在钉仓座中。钉砧组件在近端与钉仓组件的近端可动地连接在一起，并可以在张开状态和关闭状态之间转换。驱动组件与传动机构连接，用于把击发扳机的动作转换为执行器的关闭、击发和张开动作。一般情况下，钉砧组件和钉仓座还各包含一个纵向槽，上述纵向槽用于容纳驱动组件通过。当驱动组件通过上述纵向槽向执行器的远端运动时，会驱使钉砧组件和钉仓组件从张开状态转换为关闭状态，并且驱使推钉滑块和推钉块顶出缝合钉并在钉砧组件的钉成型面的钉槽中成型。一般情况下，驱动组件还包括一个切割刀，用于在组织被缝合钉缝合后，在多排钉线之间切割组织。控制器用于手动控制操作器械，一般包括有一个固定手柄，一个与固定手柄相对可动连接的击发扳机，一组传递击发扳机动作至执行器的传动机构，一个手动复位组件。当执行器的钉仓组件与钉砧组件处于闭合状态时，操作手动复位组件能驱使钉仓组件与钉砧组件恢复张开状态。中间连接体与控制器的远端可动地连接，并与执行器的近端连接在一起，中间连接体构成一个连接通道，用于实现将击发扳机的动作传递给执行器。The stapler with the above functions includes an actuator, an intermediate connecting body and a controller. The actuator is composed of an anvil assembly, a staple cartridge assembly and a driving assembly. The nail anvil assembly includes a nail forming surface, and the nail forming surface includes a plurality of rows of nail grooves, and the nail grooves are used for forming metal staples. The staple cartridge assembly generally includes a staple cartridge, staples, a staple pusher block, a staple pusher slider and a staple cartridge holder. The upper surface of the staple cartridge is a tissue contact surface, and the staple cartridge is installed in the staple cartridge holder. The proximal end of the staple anvil assembly is movably connected with the proximal end of the staple cartridge assembly, and can be switched between an open state and a closed state. The driving assembly is connected with the transmission mechanism and is used for converting the action of firing the trigger into the closing, firing and opening actions of the actuator. Generally, the nail anvil assembly and the staple cartridge seat also each include a longitudinal slot, and the above longitudinal slot is used for accommodating the passage of the driving assembly. When the driving assembly moves to the far end of the actuator through the above-mentioned longitudinal groove, it will drive the nail anvil assembly and the nail bin assembly to switch from the open state to the closed state, and drive the nail pushing slide block and the nail pushing block to push out the staples and Forming in the nail groove of the nail forming surface of the nail anvil assembly. Typically, the drive assembly also includes a cutting knife for cutting tissue between rows of staple lines after the tissue has been stapled. The controller is used to manually control the operating device, and generally includes a fixed handle, a firing trigger that is movably connected to the fixed handle, a set of transmission mechanisms that transmit the action of the firing trigger to the actuator, and a manual reset assembly. When the staple cartridge assembly and the nail anvil assembly of the actuator are in the closed state, the manual reset assembly can be operated to drive the staple cartridge assembly and the nail anvil assembly back to the open state. The intermediate connecting body is movably connected with the far end of the controller and connected with the proximal end of the actuator, and the intermediate connecting body forms a connecting channel for transmitting the action of firing the trigger to the actuator.
例如，美国专利文献US2014/0001233A1公开了一种吻合器，该吻合器通过操作击发扳机能够使执行器的钉砧组件与钉仓组件从张开状态转换为关闭状态以执行压合、击发等动作，复位时需要用另一只手向回拉手动复位组件，驱使钉仓组件与钉砧组件恢复张开状态。该技术方案中没有击发保险机构，不能有效防止误击发，且从压合组织到击发为一个持续按压操作击发扳机的连贯过程，不能使医者明确地感知到控制分别执行压合与击发动作。For example, U.S. Patent Document US2014/0001233A1 discloses a stapler, which can make the anvil assembly and the staple cartridge assembly of the actuator switch from the open state to the closed state by operating the firing trigger to perform actions such as pressing and firing. , when resetting, it is necessary to pull back the manual reset assembly with the other hand to drive the staple cartridge assembly and the anvil assembly back to the open state. In this technical solution, there is no firing safety mechanism, which cannot effectively prevent false firing, and the process from pressing tissue to firing is a continuous process of continuously pressing the firing trigger, which cannot make the doctor clearly perceive and control the pressing and firing actions respectively.
又例如，中国专利文献CN202950702U中公开的一种缝合器，该缝合器虽然已具备击发保险装置，但是，控制该击发保险装置的操作按钮位于缝合器的侧面，导致该操作按钮与击发扳手之间的距离过远，使得很难单手操作，退一步讲，即使假设医者的手指较长，则医者仍然需要通过食指和拇指来分别操作击发扳机和击发保险装置的操作按钮，在此过程中，由于拇指一般和另外四指位于缝合器手柄的不同侧，因此拇指的松弛容易导致握持缝合器不稳。而且该缝合器没有自动复位机构，医者在操作执行一次压合动作后，需要用另一个手将手动复位结构拉拽回近端的初始位置，才能使驱使钉仓组件与钉砧组件恢复张开状态，因此，事实上，该缝合器在需要反复对组织进行压合时仍然需要两个手进行操作，而不能实现单手操作。Another example is a stapler disclosed in Chinese patent document CN202950702U. Although the stapler is equipped with a firing safety device, the operation button for controlling the firing safety device is located on the side of the stapler, resulting in a gap between the operation button and the firing wrench. The distance is too far, which makes it difficult to operate with one hand. Taking a step back, even if the doctor’s fingers are long, the doctor still needs to use the index finger and thumb to respectively operate the operation buttons of the firing trigger and firing safety device. In the process, Since the thumb and the other four fingers are generally located on different sides of the stapler handle, the slackness of the thumb can easily lead to instability in holding the stapler. Moreover, the stapler does not have an automatic reset mechanism. After performing a pressing action, the doctor needs to use the other hand to pull the manual reset structure back to the initial position of the proximal end, so as to drive the staple cartridge assembly and the nail anvil assembly back to open. Therefore, in fact, the stapler still needs two hands to operate when it needs to repeatedly press the tissue, and cannot achieve single-handed operation.
再例如，美国Tyco Healthcare公司(后改称为Covidien)的Endo GIA Universal切割吻合器，以及美国Ethicon Endo-Surgery公司的Echelon切割吻合器是实现上述功能的有代表性的产品。上述产品销售多年，也被市场证明具有良好的临床应用效果。但是，这些器械的设计仍然有需要完善的地方，比如器械在操作过程中，有些操作需要双手配合才能完成，不利于手术医生在手术过程中操作器械。For another example, the Endo GIA Universal cutting stapler of the U.S. Tyco Healthcare company (later renamed Covidien) and the Echelon cutting stapler of the U.S. Ethicon Endo-Surgery company are representative products that realize the above-mentioned functions. The above products have been sold for many years and have been proven by the market to have good clinical application effects. However, the design of these instruments still needs to be improved. For example, during the operation of the instrument, some operations require the cooperation of both hands to complete, which is not conducive to the surgeon's operation of the instrument during the operation.
例如，在美国专利US5,865,361中，Tyco Healthcare对Endo GIA Universal切割吻合器(以下简称Endo GIA吻合器)的功能和设计进行了描述。当击发Endo GIA吻合器的击发扳机时，吻合器的钉砧组件和钉仓组件将从张开状态转变为关闭状态，夹持住目标组织。在手术中，如果医生认为需要调整夹持组织的位置，那么医生需要用另一只手向回拉手动复位组件，驱使钉仓组件与钉砧组件恢复张开状态。在实际手术中，吻合器的目标组织包括胃、肺、大肠等组织，其中，胃和大肠这些组织一般比较厚，且组织内腔有丰富的折皱，表面可能还有未完全分离的脂肪组织；而肺组织里有大量的肺泡，因此，吻合器的执行器在第一次关闭并夹持上述组织时，由于组织的厚度、折皱、脂肪组织或者组织内的气泡等原因，组织一般难以被压缩至理想的均匀厚度。通过反复在同一部位夹持组织，可以有效消除上述因素引起的组织压缩不均匀现象，使吻合器在随后驱使钛钉吻合组织及切割组织时，钛钉成形高度均匀，吻合效果好，组织切缘光滑。要实现在同一组织部位反复夹持组织，医生需要松开另一只手握持的器械，反复用双手操作Endo GIA吻合器的击发扳机和手动复位扳机。另外，Endo GIA吻合器的执行器在正确夹持组织以后，医生在决定吻合和切割组织前，首先需要用另一只手辅助按下吻合器的击发保险按钮以打开击发保险装置，然后才能再次操作击发扳机执行后续动作，这给器械操作带来不便，给手术带来额外风险。在微创外科手术中，医生有时两只手分别操作不同的器械，如果某一器械需要两只手同时操作，医生需要先松开握持的另一个器械。在微创外科手术中，未受医生控制的器械位于体外的控制器有可能因为术中意外的触碰而移位，器械控制器的少量移位就可能造成器械远端的执行器的大量非受控移位；因器械远端的执行器与手术目标区内的组织和器官很靠近，执行器的非受控移位有可能损伤附近的组织和器官。在临时不操作器械室，有些医生会将该器械抽出体外，以避免风险；有些情况下，器械会由另外的医生临时接手扶握住；有时，医生只是松开器械，而将器械的远端压靠在某些组织上或组织的间隙中，这些举动要么会延长手术时间，要么存在损伤组织和器官的风险。For example, in U.S. Patent No. 5,865,361, Tyco Healthcare describes the function and design of the Endo GIA Universal cutting stapler (hereinafter referred to as the Endo GIA stapler). When the firing trigger of the Endo GIA stapler is fired, the stapler's anvil assembly and staple cartridge assembly will transition from an open state to a closed state, clamping the target tissue. During the operation, if the doctor thinks that the position of the clamped tissue needs to be adjusted, the doctor needs to use the other hand to pull back the manual reset assembly to drive the staple cartridge assembly and the nail anvil assembly back to the open state. In the actual operation, the target tissues of the stapler include stomach, lung, large intestine and other tissues. Among them, the stomach and large intestine are generally thicker, and there are abundant folds in the inner cavity of the tissue, and there may be incompletely separated adipose tissue on the surface; There are a large number of alveoli in the lung tissue. Therefore, when the actuator of the stapler closes and clamps the above tissue for the first time, the tissue is generally difficult to be compressed due to the thickness of the tissue, wrinkles, fat tissue or air bubbles in the tissue. to the desired uniform thickness. By repeatedly clamping the tissue at the same position, the phenomenon of uneven tissue compression caused by the above factors can be effectively eliminated, so that when the stapler drives the titanium nail to anastomose the tissue and cut the tissue, the titanium nail has a uniform height, good anastomosis effect, and good tissue margins. smooth. To achieve repeated clamping of tissue at the same tissue site, the doctor needs to release the instrument held by the other hand, and repeatedly operate the firing trigger and manual reset trigger of the Endo GIA stapler with both hands. In addition, after the actuator of the Endo GIA stapler correctly clamps the tissue, before the doctor decides to anastomose and cut the tissue, he first needs to use his other hand to assist in pressing the firing safety button of the stapler to open the firing safety device, and then he can again Operate the firing trigger to perform subsequent actions, which inconveniences instrument handling and brings additional risks to the procedure. In minimally invasive surgery, doctors sometimes use two hands to operate different instruments. If a certain instrument needs to be operated by both hands at the same time, the doctor needs to release the other instrument first. In minimally invasive surgery, the controller of the instrument that is not under the control of the doctor may be displaced due to accidental touch during the operation. Controlled displacement; because the actuator at the distal end of the instrument is very close to the tissues and organs in the surgical target area, uncontrolled displacement of the actuator may damage nearby tissues and organs. When the instrument room is not operated temporarily, some doctors will withdraw the instrument from the body to avoid risks; in some cases, the instrument will be temporarily held by another doctor; sometimes, the doctor just releases the instrument and puts the distal end of the instrument Pressing against certain tissues or in gaps in tissues either prolongs the procedure or risks damaging tissues and organs.
如果医生单手操作吻合器就可以实现反复夹持组织同一部位的功能，将非常有利于医生实施手术，提升被夹持的目标组织的厚度均匀性，进而改善吻合和切割效果。如果在不牺牲安全性的前提下，医生可以单手操作打开击发保险机构，也将会降低手术过程中的风险，缩短手术时间。If the doctor can operate the stapler with one hand to realize the function of repeatedly clamping the same part of the tissue, it will be very beneficial for the doctor to perform the operation, improve the uniformity of the thickness of the clamped target tissue, and then improve the effect of anastomosis and cutting. If the doctor can open the firing safety mechanism with one hand without sacrificing safety, it will also reduce the risk during the operation and shorten the operation time.
发明内容Contents of the invention
本发明的目的是提供一种改进的外科器械的控制器。具体的说，涉及一种可在开放手术或腔镜手术下应用的切割吻合器。根据本发明提供的器械(以下称吻合器)可以实现组织夹持，实现至少一排缝合钉的成型；在某些应用条件下，还可以实现组织切割，在多排缝合钉线之间将组织切割开。It is an object of the present invention to provide an improved controller for surgical instruments. Specifically, it relates to a cutting stapler that can be used in open surgery or laparoscopic surgery. The instrument provided according to the present invention (hereinafter referred to as stapler) can realize tissue clamping and realize the forming of at least one row of staples; under certain application conditions, tissue cutting can also be realized, and tissue cut open.
根据本发明提供的一种可单手操作的外科器械，包括执行器、中间连接体和控制器，所述执行器、中间连接体、控制器依次连接，所述执行器包括钉仓组件、钉砧组件和驱动组件，所述控制器包括击发扳机机构、击发保险机构、自动复位机构以及齿条，其中：A surgical instrument that can be operated with one hand according to the present invention includes an actuator, an intermediate connecting body, and a controller, the actuator, the intermediate connecting body, and the controller are connected in sequence, and the actuator includes a staple cartridge assembly, a staple An anvil assembly and a drive assembly, the controller includes a firing trigger mechanism, a firing safety mechanism, an automatic reset mechanism and a rack, wherein:
所述自动复位机构可分离的啮合于控制器的齿条，并在啮合时向齿条施加驱使齿条回复至初始位置的力；The automatic reset mechanism is detachably engaged with the rack of the controller, and when engaged, applies a force to the rack to return the rack to its initial position;
所述击发保险机构的保险扳机可旋转安装于击发扳机机构的击发扳机上；The safety trigger of the firing safety mechanism is rotatably mounted on the firing trigger of the firing trigger mechanism;
当击发扳机处于操作位置时，保险扳机被操作后通过旋转能够驱使自动复位机构与齿条脱离啮合。When the firing trigger is in the operating position, the safety trigger can drive the automatic reset mechanism to disengage from the rack by rotating after being operated.
优选地，所述保险扳机位于击发扳机的远端正前方。Preferably, the safety trigger is located directly in front of the distal end of the firing trigger.
优选地，当击发扳机处于未操作位置时，保险扳机与自动复位机构之间的驱动传动链断开。Preferably, when the firing trigger is in the unoperated position, the driving transmission chain between the safety trigger and the automatic reset mechanism is disconnected.
优选地，所述自动复位机构包括自动复位滑块和弹性储能组件，自动复位滑块带有复位齿且可运动的安装在控制器壳体的纵向导轨中，自动复位滑块的复位齿与齿条可分离的啮合；弹性储能组件一端固定在控制器壳体上，另一端与自动复位滑块相连接，以提供驱使齿条回复至初始位置的弹性力。Preferably, the automatic reset mechanism includes an automatic reset slider and an elastic energy storage assembly. The automatic reset slider has reset teeth and is movably installed in the longitudinal guide rail of the controller housing. The reset teeth of the automatic reset slider are connected to the The rack can be engaged separately; one end of the elastic energy storage component is fixed on the controller housing, and the other end is connected with the automatic reset slider to provide the elastic force driving the rack to return to the initial position.
优选地，齿条通过1个齿槽与自动复位滑块的复位齿可分离的啮合。Preferably, the rack is detachably meshed with the reset teeth of the automatic reset slider through a tooth slot.
优选地，所述自动复位机构的纵向行程受到控制器内限位凸台的阻挡限制，该阻挡限制使得齿条在与自动复位机构啮合时的最大纵向行程为L1；Preferably, the longitudinal stroke of the automatic reset mechanism is limited by the stop of the limit boss in the controller, and the blocking limit makes the maximum longitudinal stroke of the rack when it is engaged with the automatic reset mechanism be L1;
保险扳机在驱使自动复位机构与齿条脱离啮合的同时还驱使自动复位机构避开限位凸台的阻挡，使得齿条在与自动复位机构脱离啮合时的最大纵向行程为L2；When the safety trigger drives the automatic reset mechanism to disengage from the rack, it also drives the automatic reset mechanism to avoid the blocking of the limit boss, so that the maximum longitudinal stroke of the rack when it is disengaged from the automatic reset mechanism is L2;
其中，L2的长度大于L1的长度，且L2的远端位置位于L1的远端位置的远端。Wherein, the length of L2 is greater than the length of L1, and the distal position of L2 is located at the distal end of the distal position of L1.
优选地，所述击发保险机构包括保险旋转块，其中，保险旋转块可旋转的安装在控制器壳体上；Preferably, the firing safety mechanism includes a safety rotation block, wherein the safety rotation block is rotatably mounted on the controller housing;
当击发扳机处于操作位置时，保险扳机能够沿击发扳机旋转运动，通过保险扳机的第一传动凸台与保险旋转块的第二传动凸台的配合驱使保险旋转块相应旋转运动，保险旋转块的旋转运动驱使保险旋转块的第三传动凸台推动自动复位机构的自动复位滑块抬高，使得自动复位滑块脱离与齿条的啮合。When the firing trigger is in the operating position, the safety trigger can rotate along the firing trigger, and through the cooperation of the first transmission boss of the safety trigger and the second transmission boss of the safety rotation block, the safety rotation block is driven to rotate accordingly, and the safety rotation block The rotation movement drives the third transmission boss of the safety rotating block to push the automatic reset slider of the automatic reset mechanism to be raised, so that the automatic reset slider is out of engagement with the rack.
优选地，自动复位滑块被抬高后使得自动复位机构避开限位凸台的阻挡限制。Preferably, after the automatic reset slider is raised, the automatic reset mechanism avoids the blocking restriction of the limiting boss.
优选地，当击发扳机处于未操作位置时，保险旋转块的第二传动凸台不在保险扳机的第一传动凸台的可触及范围内，即第一传动凸台与第二传动凸台之间的驱动传动链断开。Preferably, when the firing trigger is in the unoperated position, the second transmission boss of the safety rotary block is not within the reachable range of the first transmission boss of the safety trigger, that is, between the first transmission boss and the second transmission boss The drive chain is disconnected.
优选地，保险扳机带有保险扳机复位弹簧，保险扳机复位弹簧始终使保险扳机保持回复初始位置的弹性趋势；保险旋转块带有保险旋转块复位弹簧，保险旋转块复位弹簧具有始终使保险旋转块保持回复初始位置的弹性趋势。Preferably, the safety trigger has a safety trigger return spring, which always keeps the safety trigger elastically returning to its initial position; Maintain an elastic tendency to return to the initial position.
优选地，所述控制器包括带齿传动组件(例如齿条)，操作击发扳机的动作通过带齿传动组件传递给驱动组件；所述带齿传动组件至少包括第一组齿，第一组齿至少包括一个齿，带齿传动组件用于将操作击发扳机的运动传递给执行器。Preferably, the controller includes a toothed transmission assembly (such as a rack), and the action of operating the firing trigger is transmitted to the drive assembly through the toothed transmission assembly; the toothed transmission assembly includes at least a first set of teeth, the first set of teeth Including at least one tooth, the toothed transmission assembly is used to transmit the motion of operating the firing trigger to the actuator.
优选地，所述带齿传动组件是齿条、齿轮、棘齿轮中的任一种类型或者任多种类型的组合。Preferably, the toothed transmission assembly is any one type or a combination of a rack, a gear, and a ratchet.
优选地，所述自动复位机构的弹性储能组件，是拉伸弹簧、压缩弹簧、扭转弹簧、涡卷弹簧、异型弹簧、蛇形弹簧、碟形弹簧中的任一种类型。Preferably, the elastic energy storage component of the automatic reset mechanism is any type of tension spring, compression spring, torsion spring, scroll spring, special-shaped spring, serpentine spring, or disk spring.
优选地，所述自动复位机构还包括储能组件连接件，所述储能组件连接件至少包括一个齿，储能组件连接件与弹性储能组件连接，储能组件连接件与带齿传动组件可分离的啮合在一起，带齿传动组件的运动能够驱使储能组件连接件相应运动，并驱使弹性储能组件积蓄能量。Preferably, the automatic reset mechanism further includes an energy storage component connector, the energy storage component connector includes at least one tooth, the energy storage component connector is connected to the elastic energy storage component, and the energy storage component connector is connected to the toothed transmission component. They are separably meshed together, and the movement of the toothed transmission component can drive the corresponding movement of the connecting part of the energy storage component, and drive the elastic energy storage component to store energy.
优选地，所述带齿传动组件包括第二组齿，第二组齿至少包括一个齿，储能组件连接件的齿与带齿传动组件的第二组齿可动的啮合。Preferably, the toothed transmission assembly includes a second set of teeth, the second set of teeth includes at least one tooth, and the teeth of the energy storage assembly connecting member are movably meshed with the second set of teeth of the toothed transmission assembly.
优选地，所述击发保险机构包括保险击发组件(保险击发组件优选地包括保险扳机)，所述保险击发组件被操作时，保险击发组件以下述任意一种方式运动：直线运动、曲线运动、中心轴固定的旋转运动、中心轴沿直线运动的旋转运动、中心轴沿曲线运动的旋转运动、分段多中心轴旋转运动。Preferably, the firing safety mechanism includes a safety firing assembly (the safety firing assembly preferably includes a safety trigger), and when the safety firing assembly is operated, the safety firing assembly moves in any of the following ways: linear motion, curved motion, central Rotary motion with fixed axis, rotary motion with central axis moving along a straight line, rotary motion with central axis moving along a curve, and segmental multi-axis rotary motion.
优选地，所述控制器包括手动复位组件。Preferably, the controller includes a manual reset assembly.
根据本发明提供的一种上述可单手操作的外科器械的操作方法，包括：According to the operation method of the above-mentioned one-handed surgical instrument provided by the present invention, comprising:
操作击发扳机机构将驱使齿条沿纵向向远端移动，齿条的移动进而驱使执行器的钉仓组件与钉砧组件从张开状态转换为闭合状态；Operating the firing trigger mechanism will drive the rack to move longitudinally and distally, and the movement of the rack will then drive the staple cartridge assembly and the nail anvil assembly of the actuator to switch from an open state to a closed state;
在未操作击发保险机构的状况下，当松开击发扳机机构时，所述自动复位机构、执行器的驱动组件、与执行器的钉仓组件和/或钉砧组件顺次构成驱动力传递链，所述自动复位机构将驱使驱动组件沿纵向向近端移动，进而所述执行器的钉仓组件与钉砧组件从闭合状态转换为张开状态；In the condition that the firing safety mechanism is not operated, when the firing trigger mechanism is released, the automatic reset mechanism, the driving assembly of the actuator, and the nail cartridge assembly and/or nail anvil assembly of the actuator constitute a driving force transmission chain in sequence , the automatic reset mechanism will drive the driving assembly to move proximally along the longitudinal direction, and then the staple cartridge assembly and the nail anvil assembly of the actuator are converted from a closed state to an open state;
在操作所述击发保险机构后，所述自动复位机构脱离所述驱动力传递链，当松开击发扳机机构时，所述执行器的钉仓组件与钉砧组件仍保持闭合状态。After the firing safety mechanism is operated, the automatic reset mechanism is separated from the driving force transmission chain, and when the firing trigger mechanism is released, the nail cartridge assembly and the nail anvil assembly of the actuator remain closed.
优选地，在未操作击发保险机构的状况下，操作击发扳机机构驱使所述执行器的钉仓组件与钉砧组件从张开状态转换为闭合状态时，所述击发扳机只能行进部分行程，使得驱动组件仅向远端移动部分行程；在操作所述击发保险机构后，所述击发扳机在同一次击发操作中能够继续操作直至行进全部行程，驱使驱动组件进一步向远端移动。Preferably, when the firing safety mechanism is not operated, when the firing trigger mechanism is operated to drive the staple cartridge assembly and the nail anvil assembly of the actuator to switch from the open state to the closed state, the firing trigger can only travel part of the stroke, The driving assembly only moves part of the stroke to the distal end; after the firing safety mechanism is operated, the firing trigger can continue to operate until the full stroke in the same firing operation, driving the driving assembly to move further to the distal end.
优选地，在操作击发扳机机构驱使所述执行器的钉仓组件与钉砧组件从张开状态转换为闭合状态时，弹性储能组件积蓄能量；在未操作所述击发保险机构时，松开击发扳机后，由弹性储能组件积蓄的能量驱使所述执行器的驱动组件沿纵向向近端移动。Preferably, when the firing trigger mechanism is operated to drive the nail cartridge assembly and the nail anvil assembly of the actuator to switch from the open state to the closed state, the elastic energy storage assembly accumulates energy; when the firing safety mechanism is not operated, release After firing the trigger, the energy stored in the elastic energy storage component drives the drive component of the actuator to move proximally along the longitudinal direction.
优选地，在钉仓组件与钉砧组件从张开状态转换为闭合状态时，操作击发保险机构将驱使储能组件连接件(例如自动复位滑块)与带齿传动组件(例如齿条)从啮合状态分离，弹性储能组件释放积蓄的能量。Preferably, when the staple cartridge assembly and the nail anvil assembly are converted from the open state to the closed state, the operation of the firing safety mechanism will drive the energy storage assembly connecting part (such as an automatic reset slider) and the toothed transmission assembly (such as a rack) from The meshing state is separated, and the elastic energy storage component releases the stored energy.
优选地，所述执行器的钉仓组件与钉砧组件为张开状态的情况下，操作击发保险机构时，驱使储能组件连接件与带齿传动组件保持啮合状态。Preferably, when the staple cartridge assembly and the anvil assembly of the actuator are in an open state, when the firing safety mechanism is operated, the connecting part of the energy storage assembly is driven to maintain a meshing state with the toothed transmission assembly.
优选地，在钉仓组件与钉砧组件处于闭合状态时，操作控制器的手动复位组件可驱使钉仓组件与钉砧组件回复张开状态。Preferably, when the staple cartridge assembly and the staple anvil assembly are in the closed state, operating the manual reset assembly of the controller can drive the staple cartridge assembly and the staple anvil assembly to return to the open state.
优选地，在钉仓组件与钉砧组件处于闭合状态时，向近端拉手动复位组件将驱使钉仓组件与钉砧组件恢复张开状态。Preferably, when the staple cartridge assembly and the staple anvil assembly are in the closed state, pulling the manual reset assembly to the proximal end will drive the staple cartridge assembly and the staple anvil assembly to resume the open state.
优选地，在钉仓组件与钉砧组件处于闭合状态时，操作手动复位组件将驱使自动复位机构恢复初始状态。Preferably, when the staple cartridge assembly and the anvil assembly are in a closed state, operating the manual reset assembly will drive the automatic reset mechanism to return to the original state.
优选地，在钉仓组件与钉砧组件处于闭合状态时，操作手动复位组件将驱使击发保险机构恢复初始状态。Preferably, when the staple cartridge assembly and the anvil assembly are in a closed state, operating the manual reset assembly will drive the firing safety mechanism to return to the initial state.
优选地，所述击发扳机被操作时，击发扳机以下述任意一种方式运动：直线运动、曲线运动、中心轴固定的旋转运动、中心轴沿直线运动的旋转运动、中心轴沿曲线运动的旋转运动、分段多中心轴旋转运动。Preferably, when the firing trigger is operated, the firing trigger moves in any of the following ways: linear motion, curved motion, rotational motion with a fixed central axis, rotational motion with a central axis moving along a straight line, and rotational motion with a central axis moving along a curve Motion, segmented multi-axis rotary motion.
更为具体地，控制器100，包括控制器壳体、击发扳机机构、带齿传动组件、带齿传动组件复位机构、击发保险机构、自动复位机构，其中：More specifically, the controller 100 includes a controller housing, a firing trigger mechanism, a toothed transmission assembly, a toothed transmission assembly reset mechanism, a firing safety mechanism, and an automatic reset mechanism, wherein:
击发扳机机构包括击发扳机111、扳机复位簧112、拔齿113、拔齿销114、拔齿弹簧115，其中，击发扳机111的主轴孔1112与扳机复位簧112同心的安装在控制器壳体的旋转轴1011上，扳机复位簧112具有始终使击发扳机111保持回复初始位置的弹性趋势，拔齿113通过拔齿销114可旋转的与击发扳机111连接在一起，拔齿弹簧115与拔齿销114同心且始终使拔齿113的击发齿1131保持偏向带齿传动组件的弹性趋势；The firing trigger mechanism includes a firing trigger 111, a trigger return spring 112, a tooth extraction 113, a tooth extraction pin 114, and a tooth extraction spring 115, wherein the main shaft hole 1112 of the firing trigger 111 is concentric with the trigger return spring 112 and is installed on the controller housing. On the rotating shaft 1011, the trigger return spring 112 has an elastic tendency to keep the firing trigger 111 back to its initial position all the time. The tooth extraction 113 is rotatably connected with the firing trigger 111 through the tooth extraction pin 114. The tooth extraction spring 115 is connected with the tooth extraction pin. 114 is concentric and always keeps the firing tooth 1131 of the tooth extraction 113 biased towards the elastic trend of the toothed transmission assembly;
带齿传动组件可运动的安装在控制器壳体的纵向导轨中，带齿传动组件包括第一组齿1051和第二组齿1052，其中，第一组齿1051与拔齿113的击发齿1131可分离的啮合，第二组齿1052与自动复位机构可分离的啮合；当操作击发扳机111时，击发扳机111的旋转运动通过拔齿113的击发齿1131与带齿传动组件的第一组齿1051的啮合传递给带齿传动组件，驱使带齿传动组件沿纵向向远端移动；The toothed transmission assembly is movably installed in the longitudinal guide rail of the controller housing. The toothed transmission assembly includes a first set of teeth 1051 and a second set of teeth 1052, wherein the first set of teeth 1051 and the firing teeth 1131 of the extraction tooth 113 Detachable engagement, the second set of teeth 1052 is detachably engaged with the automatic reset mechanism; when the firing trigger 111 is operated, the rotary motion of the firing trigger 111 passes through the firing tooth 1131 of the pulling tooth 113 and the first set of teeth of the toothed transmission assembly The meshing of 1051 is transmitted to the toothed transmission assembly, driving the toothed transmission assembly to move longitudinally and distally;
带齿传动组件复位机构用于将移动到远端的带齿传动组件回复至初始位置；The reset mechanism of the toothed transmission assembly is used to restore the toothed transmission assembly moved to the far end to the initial position;
击发保险机构包括保险扳机116、保险扳机复位弹簧117、保险旋转块118和保险旋转块复位弹簧119，其中，保险扳机116可旋转的固定在击发扳机111上，保险扳机复位弹簧117始终使保险扳机116保持回复初始位置的弹性趋势，保险旋转块118可旋转的固定在控制器壳体上，保险旋转块复位弹簧119具有始终使保险旋转块118保持回复初始位置的弹性趋势，保险旋转块118的第三传动凸台1181与自动复位滑块120的脱位凸台1204处于工作状态；在初始状态时，保险旋转块118的第二传动凸台1182与保险扳机116的第一传动凸台1161处于待工作状态，保险扳机复位弹簧117驱使保险扳机116的第一传动凸台1161压靠在击发扳机111上，此时操作保险扳机116不能驱使保险旋转块118运动。操作击发扳机111时，保险扳机116沿击发扳机111上的旋转轴A1旋转运动，此时保险扳机116的第一传动凸台1161进入与保险旋转块118的第二传动凸台1182处于工作状态的位置，此时操作保险扳机116，保险扳机116沿A2轴旋转，进而通过保险扳机116的第一传动凸台1161与保险旋转块118的第二传动凸台1182的配合驱使保险旋转块118沿第一固定手柄101上的半轴1013相应旋转运动，保险旋转块118的旋转运动致使保险旋转块118的第二传动凸台1182推动自动复位滑块120的脱位凸台1204抬高。The firing safety mechanism includes a safety trigger 116, a safety trigger return spring 117, a safety rotation block 118 and a safety rotation block return spring 119, wherein the safety trigger 116 is rotatably fixed on the firing trigger 111, and the safety trigger return spring 117 always makes the safety trigger 116 keeps the elastic trend of returning to the initial position, and the safety rotating block 118 is rotatably fixed on the controller housing, and the safety rotating block return spring 119 has the elastic tendency to keep the safety rotating block 118 returning to the initial position all the time, and the safety rotating block 118 The third transmission boss 1181 and the dislocation boss 1204 of the automatic reset slide block 120 are in working condition; when in the initial state, the second transmission boss 1182 of the insurance rotating block 118 and the first transmission boss 1161 of the safety trigger 116 are in a standby state. In the working state, the safety trigger return spring 117 drives the first transmission boss 1161 of the safety trigger 116 to press against the firing trigger 111 , at this time, the safety trigger 116 cannot be operated to drive the safety rotating block 118 to move. When the firing trigger 111 is operated, the safety trigger 116 rotates along the rotation axis A1 on the firing trigger 111. At this time, the first transmission boss 1161 of the safety trigger 116 enters into the working state with the second transmission boss 1182 of the safety rotation block 118. At this time, the safety trigger 116 is operated, and the safety trigger 116 rotates along the A2 axis, and then through the cooperation of the first transmission boss 1161 of the safety trigger 116 and the second transmission boss 1182 of the safety rotation block 118, the safety rotation block 118 is driven along the first transmission boss 1182. A semi-axis 1013 on the fixed handle 101 rotates accordingly, and the rotation of the safety rotating block 118 causes the second transmission boss 1182 of the safety rotating block 118 to push the dislocation boss 1204 of the automatic reset slider 120 to lift.
自动复位机构包括自动复位滑块120和自动复位弹簧121，自动复位滑块120带有复位齿1201、两个对称的第一滑动销1202、第二滑动销1203，还带有脱位凸台1204，自动复位滑块120的复位齿1201与带齿传动组件的第二组齿1052可分离的啮合，第一滑动销1202、第二滑动销1203可运动的安装在控制器壳体的纵向导轨中，自动复位弹簧121一端固定在控制器壳体上，另一端与自动复位滑块120相连接，自动复位弹簧121具有始终使自动复位滑块120保持回复初始位置的弹性趋势。The automatic reset mechanism includes an automatic reset slider 120 and an automatic reset spring 121. The automatic reset slider 120 has a reset tooth 1201, two symmetrical first sliding pins 1202, a second sliding pin 1203, and a dislocation boss 1204. The reset tooth 1201 of the automatic reset slider 120 is detachably engaged with the second set of teeth 1052 of the toothed transmission assembly, and the first sliding pin 1202 and the second sliding pin 1203 are movably installed in the longitudinal guide rail of the controller housing. One end of the automatic return spring 121 is fixed on the controller housing, and the other end is connected with the automatic return slide block 120. The automatic return spring 121 has an elastic tendency to always keep the automatic return slide block 120 back to its initial position.
优选地，所述带齿传动组件为如下任一种装置或者任多种装置的组合：Preferably, the toothed transmission assembly is any one of the following devices or a combination of any number of devices:
-齿条105；- rack 105;
-齿轮；-gear;
-棘齿轮。- ratchet gear.
优选地，所述自动复位弹簧121为如下任一种装置：Preferably, the automatic return spring 121 is any of the following devices:
-拉伸弹簧；- tension spring;
-压缩弹簧；-compressed spring;
-扭转弹簧；- torsion spring;
-涡卷弹簧；- scroll spring;
-异型弹簧；- profiled spring;
-蛇形弹簧；- Serpentine springs;
-碟形弹簧。- Belleville springs.
优选地，所述保险扳机116被操作时，按照如下任一种方式运动：Preferably, when the safety trigger 116 is operated, it moves in any of the following ways:
-直线运动；- linear motion;
-曲线运动；- curved movement;
-中心轴固定的旋转运动；- Rotational movement with a fixed central axis;
-中心轴沿直线运动的旋转运动；- rotational movement of the central axis along a straight line;
-中心轴沿曲线运动的旋转运动；- rotational movement of the central axis along a curved line;
-分段多中心轴旋转运动。-Segmented multi-axis rotary motion.
优选地，所述击发扳机111被操作时，按照如下任一种方式运动：Preferably, when the firing trigger 111 is operated, it moves in any of the following ways:
-直线运动；- linear motion;
-曲线运动；- curved movement;
-中心轴固定的旋转运动；- Rotational movement with a fixed central axis;
-中心轴沿直线运动的旋转运动；- rotational movement of the central axis along a straight line;
-中心轴沿曲线运动的旋转运动；- rotational movement of the central axis along a curved line;
-分段多中心轴旋转运动。-Segmented multi-axis rotary motion.
所述可单手操作的外科器械，包括执行器300、中间连接体200，其特征在于，还包括上述的所述控制器100，其中，所述执行器300、中间连接体200、控制器100依次连接，所述控制器100的带齿传动组件能够将操作击发扳机111的运动通过中间连接体200传递给执行器300。The surgical instrument that can be operated with one hand includes an actuator 300, an intermediate connecting body 200, and is characterized in that it also includes the above-mentioned controller 100, wherein the actuator 300, the intermediate connecting body 200, and the controller 100 Connected in sequence, the toothed transmission assembly of the controller 100 can transmit the movement of the firing trigger 111 to the actuator 300 through the intermediate connecting body 200 .
优选地，所述执行器包括钉砧组件3001、钉仓组件3002、驱动组件3003，操作击发扳机111将驱使驱动组件3003移动，驱动组件3003的移动进而驱使钉砧组件3001与钉仓组件3002从张开状态转换为闭合状态；Preferably, the actuator includes a nail anvil assembly 3001, a nail cartridge assembly 3002, and a driving assembly 3003. Operating the firing trigger 111 will drive the driving assembly 3003 to move, and the movement of the driving assembly 3003 will then drive the nail anvil assembly 3001 and the nail cartridge assembly 3002 from The open state is converted to the closed state;
在未操作击发保险机构的状况下，自动复位滑块120的复位齿1201与带齿传动组件的第二组齿1052处于啮合状态，松开击发扳机111时，所述自动复位机构将自动驱使钉仓组件3002与钉砧组件3001从闭合状态转换为张开状态；When the firing safety mechanism is not operated, the reset tooth 1201 of the automatic reset slider 120 is in the meshing state with the second set of teeth 1052 of the toothed transmission assembly. When the firing trigger 111 is released, the automatic reset mechanism will automatically drive the nail The bin assembly 3002 and the anvil assembly 3001 are converted from the closed state to the open state;
在操作所述击发保险机构后，保险扳机116驱使自动复位滑块120的复位齿1201与带齿传动组件的第二组齿1052从啮合状态分离，松开击发扳机111时，所述砧组件3001与钉仓组件3002保持闭合状态。After operating the firing safety mechanism, the safety trigger 116 drives the reset tooth 1201 of the automatic reset slider 120 to separate from the second set of teeth 1052 of the toothed transmission assembly. When the firing trigger 111 is released, the anvil assembly 3001 Keep the closed state with the staple cartridge assembly 3002.
优选地，在操作击发扳机111驱使所述砧组件3001与钉仓组件3002从张开状态转换为闭合状态时，所述击发扳机111只能行进部分行程，进一步地，在操作所述击发保险机构后，所述击发扳机111在同一次击发操作中能够继续操作直至行进全部行程，驱使驱动组件3003进一步移动。Preferably, when the firing trigger 111 is operated to drive the anvil assembly 3001 and the staple cartridge assembly 3002 from the open state to the closed state, the firing trigger 111 can only travel part of the stroke, further, when the firing safety mechanism is operated Afterwards, the firing trigger 111 can continue to operate until it travels a full stroke in the same firing operation, driving the driving assembly 3003 to move further.
优选地，所述控制器100还包括手动复位组件，其中，在钉仓组件3002与钉砧组件3001处于闭合状态时，操作手动复位组件能够驱使钉仓组件3002与钉砧组件3001回复张开状态。Preferably, the controller 100 further includes a manual reset assembly, wherein, when the staple cartridge assembly 3002 and the nail anvil assembly 3001 are in the closed state, operating the manual reset assembly can drive the staple cartridge assembly 3002 and the nail anvil assembly 3001 to return to the open state .
优选地，在钉仓组件3002与钉砧组件3001处于闭合状态时，向近端拉手动复位组件将驱使钉仓组件3002与钉砧组件3001恢复张开状态。Preferably, when the staple cartridge assembly 3002 and the staple anvil assembly 3001 are in the closed state, pulling the manual reset assembly proximally will drive the staple cartridge assembly 3002 and the staple anvil assembly 3001 to resume the open state.
优选地，在钉仓组件3002与钉砧组件3001处于闭合状态时，操作手动复位组件将驱使自动复位机构恢复初始状态。Preferably, when the staple cartridge assembly 3002 and the anvil assembly 3001 are in a closed state, operating the manual reset assembly will drive the automatic reset mechanism to return to the original state.
优选地，在钉仓组件3002与钉砧组件3001处于闭合状态时，操作手动复位组件将驱使击发保险机构恢复初始状态。Preferably, when the staple cartridge assembly 3002 and the anvil assembly 3001 are in the closed state, operating the manual reset assembly will drive the firing safety mechanism to return to the initial state.
与现有技术相比，本发明具有的优点是：Compared with prior art, the present invention has the advantage that:
1、所述外科器械具有自动复位功能：在未打开击发保险机构时，医生操作击发扳机时，外科器械的执行器将夹持组织；医生松开击发扳机时，外科器械的执行器将自动复位并释放被夹持的组织。外科器械的这一功能既方便医生单手调整吻合器夹持组织的位置，也有利于医生通过反复夹持组织同一部位的方式改善厚组织最终被夹持时组织厚度均匀性，进而改善吻合和切割效果。1. The surgical instrument has an automatic reset function: when the firing safety mechanism is not opened, when the doctor operates the firing trigger, the actuator of the surgical instrument will clamp the tissue; when the doctor releases the firing trigger, the actuator of the surgical instrument will automatically reset And release the clamped tissue. This function of the surgical instrument is not only convenient for the doctor to adjust the position of the stapler to clamp the tissue with one hand, but also helps the doctor to improve the uniformity of the thickness of the tissue when the thick tissue is finally clamped by repeatedly clamping the same part of the tissue, thereby improving the anastomosis and cutting effect.
2、本发明中保险扳机116位于击发扳机111的远端正前方，使得医者可以用同一个食指兼顾且同时操作到保险扳机116和击发扳机111。2. In the present invention, the safety trigger 116 is located directly in front of the far end of the firing trigger 111, so that the doctor can use the same index finger to simultaneously operate the safety trigger 116 and the firing trigger 111.
3、本发明在医者操作执行反复夹持压合、打开击发扳机准备击发、进行击发的过程中只需要一个食指的操作，实现了单手操作的目的，更是实现了单手的食指即可实现操作的目的。3. The present invention only needs one index finger to operate during the process of repeated clamping and pressing by the doctor, opening the trigger to prepare for firing, and firing. achieve the purpose of the operation.
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，本发明的其它特征、目的和优点将会变得更明显：Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
图1是根据本发明的一个实施例的改进的可单手操作的外科器械的结构示意图；Fig. 1 is a schematic structural view of an improved single-handed surgical instrument according to an embodiment of the present invention;
图2和图3是图1所示的外科器械的爆炸结构示意图；Fig. 2 and Fig. 3 are the explosive structure schematic diagrams of the surgical instrument shown in Fig. 1;
图4是图1所示的外科器械的控制器处于初始状态时的结构示意图；Fig. 4 is a structural schematic view of the controller of the surgical instrument shown in Fig. 1 when it is in an initial state;
图5是图1所示的外科器械的控制器在操作击发扳机后的结构示意图；Fig. 5 is a structural schematic diagram of the controller of the surgical instrument shown in Fig. 1 after the firing trigger is operated;
图6是图5所示的控制器在A-A处的剖面结构示意图；Fig. 6 is a schematic cross-sectional structure diagram of the controller shown in Fig. 5 at A-A;
图7是图5所示的控制器所处状态的后视结构示意图；Fig. 7 is a rear view structural schematic diagram of the state of the controller shown in Fig. 5;
图8、图15(a)、图15(b)、图16共同示出图1所示的外科器械的控制器在操作击发扳机后再操作保险扳机时储能组件连接件脱离啮合瞬间的结构示意图；其中，图16是图15中部分D的放大图；Fig. 8, Fig. 15(a), Fig. 15(b), and Fig. 16 collectively show the structure of the moment when the energy storage assembly connector is disengaged when the controller of the surgical instrument shown in Fig. 1 operates the firing trigger and then operates the safety trigger Schematic diagram; Wherein, Fig. 16 is the enlarged view of part D in Fig. 15;
图9是图8所示的控制器所处状态的后视结构示意图；Fig. 9 is a rear view structural schematic diagram of the state of the controller shown in Fig. 8;
图10、图17(a)、图17(b)、图18共同示出图1所示的外科器械的控制器在操作击发扳机后再操作保险扳机后自动复位机构失效时的结构示意图；其中，图18是图17中部分G的放大图；Fig. 10, Fig. 17(a), Fig. 17(b), Fig. 18 jointly show the structural representation of the controller of the surgical instrument shown in Fig. 1 when the automatic reset mechanism fails after operating the firing trigger and then operating the safety trigger; wherein , Fig. 18 is an enlarged view of part G in Fig. 17;
图11是图10所示的控制器所处状态的后视结构示意图；Fig. 11 is a rear view structural schematic diagram of the state of the controller shown in Fig. 10;
图12是图1所示的外科器械的控制器在操作保险扳机但未操作击发扳机时的结构示意图；Fig. 12 is a structural schematic diagram of the controller of the surgical instrument shown in Fig. 1 when the safety trigger is operated but the firing trigger is not operated;
图13是图12所示的控制器所处状态的后视结构示意图；Fig. 13 is a rear view structural schematic diagram of the state of the controller shown in Fig. 12;
图14是图1所示的外科器械的控制器在击发以后再手动复位过程中的结构示意图。Fig. 14 is a structural schematic diagram of the controller of the surgical instrument shown in Fig. 1 during manual reset after firing.
A1表示第一固定手柄101上的旋转轴1011的中心轴，击发扳机111可沿此轴旋转；A1 represents the central axis of the rotating shaft 1011 on the first fixed handle 101, and the firing trigger 111 can rotate along this axis;
A2表示击发扳机111上的销轴1111的中心轴，击发保险扳机116可沿此轴旋转。A2 represents the central axis of the pin shaft 1111 on the firing trigger 111, and the firing safety trigger 116 can rotate along this axis.
具体实施方式Detailed ways
下面结合具体实施例对本发明进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明，但不以任何形式限制本发明。应当指出的是，对本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进。这些都属于本发明的保护范围。The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
本发明应用于外科器械的控制器，使用特殊的零件组合方案，以使外科器械的执行器获得自动复位功能。The invention is applied to the controller of the surgical instrument, and uses a special component combination scheme to enable the actuator of the surgical instrument to obtain the automatic reset function.
图1至图14示出根据本发明的一个实施例即改进的可单手操作的外科吻合器械的示意图。1 to 14 show schematic diagrams of an improved surgical stapling instrument that can be operated with one hand according to an embodiment of the present invention.
具体地，在本实施例中，参见图1-图3，所述可单手操作的外科器械包括控制器100、中间连接体200、执行器300，其中，控制器100、中间连接体200、执行器300依次连接。所述执行器300包括钉仓组件3002、钉砧组件3001和驱动组件3003。Specifically, in this embodiment, referring to FIGS. 1-3 , the single-handed surgical instrument includes a controller 100, an intermediate connecting body 200, and an actuator 300, wherein the controller 100, the intermediate connecting body 200, The actuators 300 are connected sequentially. The actuator 300 includes a staple cartridge assembly 3002 , an anvil assembly 3001 and a driving assembly 3003 .
在本实施例中，参见图1-图6，所述控制器100包括第一固定手柄101、第二固定手柄102、击发扳机111、齿条105、自动复位机构和击发保险机构。In this embodiment, referring to FIGS. 1-6 , the controller 100 includes a first fixed handle 101 , a second fixed handle 102 , a firing trigger 111 , a rack 105 , an automatic reset mechanism and a firing safety mechanism.
第一固定手柄101和第二固定手柄102通过焊接或其它安全的方式连接成一个整体的控制器壳体，构成控制器100的内腔。击发扳机111可动的安装在控制器100的内腔的旋转轴A1上。在本实施例中，击发扳机111的主轴孔1112与扳机复位簧112同心的安装在第一固定手柄101的旋转轴1011上，扳机复位簧112始终使击发扳机111保持回复初始位置的弹性趋势。拔齿113通过拔齿销114可旋转的与击发扳机111连接在一起，拔齿弹簧115与拔齿销114同心且始终使拔齿113的击发齿1131保持偏向齿条105的弹性趋势。The first fixed handle 101 and the second fixed handle 102 are connected by welding or other safe means to form an integral controller housing, constituting the inner chamber of the controller 100 . The firing trigger 111 is movably installed on the rotation axis A1 of the inner chamber of the controller 100 . In this embodiment, the main shaft hole 1112 of the firing trigger 111 is concentrically installed on the rotating shaft 1011 of the first fixed handle 101 with the trigger return spring 112, and the trigger return spring 112 always keeps the firing trigger 111 elastically returning to its initial position. The tooth extraction 113 is rotatably connected with the firing trigger 111 by the tooth extraction pin 114 , the tooth extraction spring 115 is concentric with the tooth extraction pin 114 and keeps the firing tooth 1131 of the tooth extraction 113 biased towards the elastic trend of the rack 105 .
齿条(或称带齿传动组件)105可运动的安装在由第一固定手柄101和第二固定手柄102构成的纵向导轨中。在本实施例中，齿条105包括第一组齿1051和第二组齿1052，其中，第一组齿1051与拔齿113的击发齿1131可分离的啮合，第二组齿1052与自动复位机构可分离的啮合。当操作击发扳机111时，击发扳机111的旋转运动通过拔齿113的击发齿1131与齿条105的第一组齿1051的啮合传递给齿条105，驱使齿条105沿纵向向远端移动。所述第一组齿1051与第二组齿1052可以为一个齿条上的不同位置处的齿。The rack (or toothed transmission assembly) 105 is movably installed in the longitudinal guide rail formed by the first fixed handle 101 and the second fixed handle 102 . In this embodiment, the rack 105 includes a first set of teeth 1051 and a second set of teeth 1052, wherein the first set of teeth 1051 is detachably engaged with the firing tooth 1131 of the extraction tooth 113, and the second set of teeth 1052 is engaged with the automatic reset Mechanisms are separably engaged. When the firing trigger 111 is operated, the rotational motion of the firing trigger 111 is transmitted to the rack 105 through the engagement of the firing teeth 1131 of the pulling tooth 113 with the first set of teeth 1051 of the rack 105, driving the rack 105 to move longitudinally and distally. The first set of teeth 1051 and the second set of teeth 1052 may be teeth at different positions on a rack.
通常，控制器100还包括一套齿条复位机构，用于将完成器械功能后的齿条105回复初始位置。在本实施例中，如图2所示，所述的齿条复位机构包括第一复位帽103、第二复位帽104、拔齿脱扣片106、第一定位销107、第二定位销108、复位销109、齿条复位簧110。拔齿脱扣片106上有与纵向成一定角度延伸的两个销槽，第一定位销107和第二定位销108穿过所述的两个销槽将拔齿脱扣片106可动的连接在齿条105上，当拔齿脱扣片106沿纵向向近端运动时，拔齿脱扣片106的下端面1061将产生向下的移动。当齿条105不在初始位置时，操作者向近端拉第一复位帽103、第二复位帽104，通过复位销109，首先驱使拔齿脱扣片106沿纵向向近端运动，拔齿脱扣片106的下端面1061向下移动，驱使拔齿113的击发齿1131与齿条105脱离啮合；继续拉第一复位帽103、第二复位帽104时，复位销109继续后退直到与齿条105刚性接触，然后带动齿条105一起向近端运动，直到恢复初始位置。Usually, the controller 100 also includes a rack reset mechanism, which is used to return the rack 105 to the initial position after completing the function of the instrument. In this embodiment, as shown in FIG. 2, the rack reset mechanism includes a first reset cap 103, a second reset cap 104, a tooth-pulling release piece 106, a first positioning pin 107, and a second positioning pin 108. , reset pin 109, rack reset spring 110. There are two pin grooves extending at a certain angle to the longitudinal direction on the tooth-extracting tripping piece 106, and the first positioning pin 107 and the second positioning pin 108 pass through the two pin grooves to move the tooth-pulling tripping piece 106. Connected to the rack 105, when the tooth-pulling trip piece 106 moves proximally along the longitudinal direction, the lower end surface 1061 of the tooth-pulling trip piece 106 will move downward. When the rack 105 is not in the initial position, the operator pulls the first reset cap 103 and the second reset cap 104 proximally, and through the reset pin 109, the tooth-extraction release piece 106 is first driven to move proximally along the longitudinal direction, and the tooth-extraction is released. The lower end surface 1061 of the buckle 106 moves downward, driving the firing tooth 1131 of the pulling tooth 113 to disengage from the rack 105; 105 in rigid contact, and then drive the rack 105 to move proximally together until returning to the initial position.
在本实施例中，参见图2和图4，自动复位机构包括自动复位滑块120和自动复位弹簧121。自动复位滑块120带有复位齿1201、两个对称的第一滑动销1202、第二滑动销1203和脱位凸台1204。自动复位滑块120的复位齿1201与齿条105的第二组齿1052可分离的啮合，第一滑动销1202、第二滑动销1203可运动的安装在由第一固定手柄101和第二固定手柄102构成的纵向导轨中。自动复位弹簧121一端固定在第一固定手柄101的固定销1012上，另一端与自动复位滑块120相连接，始终使自动复位滑块120保持回复初始位置的弹性趋势。In this embodiment, referring to FIG. 2 and FIG. 4 , the automatic reset mechanism includes an automatic reset slider 120 and an automatic reset spring 121 . The automatic reset sliding block 120 has a reset tooth 1201 , two symmetrical first sliding pins 1202 , a second sliding pin 1203 and a dislocation boss 1204 . The reset teeth 1201 of the automatic reset slide block 120 are detachably engaged with the second set of teeth 1052 of the rack 105, and the first slide pin 1202 and the second slide pin 1203 are movably mounted on the first fixed handle 101 and the second fixed handle. In the longitudinal guide rail that handle 102 constitutes. One end of the automatic reset spring 121 is fixed on the fixed pin 1012 of the first fixed handle 101, and the other end is connected with the automatic reset slider 120, so that the automatic reset slider 120 always maintains an elastic tendency to return to the initial position.
在本实施例中，参见图2和图4，击发保险机构包括保险扳机116、保险扳机复位弹簧117、保险旋转块118和保险旋转块复位弹簧119。保险扳机116可旋转的固定在击发扳机111上，保险扳机复位弹簧117始终使保险扳机116保持回复初始位置的弹性趋势。保险旋转块118可旋转的固定在第一固定手柄101上，保险旋转块复位弹簧119始终使保险旋转块118保持回复初始位置的弹性趋势。In this embodiment, referring to FIG. 2 and FIG. 4 , the firing safety mechanism includes a safety trigger 116 , a safety trigger return spring 117 , a safety rotation block 118 and a safety rotation block return spring 119 . The safety trigger 116 is rotatably fixed on the firing trigger 111, and the safety trigger return spring 117 always keeps the safety trigger 116 in an elastic tendency to return to the initial position. The safety rotation block 118 is rotatably fixed on the first fixed handle 101 , and the safety rotation block return spring 119 always keeps the safety rotation block 118 in an elastic tendency to return to the initial position.
在本实施例中，参见图1和图3，中间连接体200连接在控制器100的远端。中间连接体200包括：第一旋转连接头201、第二旋转连接头202、枪套管203、枪管204、钉匣套管205、第一钉匣内管206、第二钉匣内管207、传动杆208等组件。第一旋转连接头201和第二旋转连接头202通过焊接或其它安全的方式连接成一个整体，该整体近端连接在控制器100的远端，远端与枪管204固定连接在一起，枪管204的外面安装有光滑且具有防锈功能的枪套管203，枪管204的轴线构成本实施例所述的纵向方向。枪管204的远端与第二钉匣内管207可拆卸的连接，同时，为了避免手术中第二钉匣内管207从枪管204的远端非人为原因的脱卸而造成手术风险，在枪管204的远端设计了一个防脱卸机制，包括装载限位片209，旋转限位块210和装载弹簧211。当第二钉匣内管207装载在枪管204的远端时，装载限位片209在装载弹簧211施加的偏向力的作用下，阻止第二钉匣内管207从枪管204上脱卸，除非手动将装载限位片209拨离原位。In this embodiment, referring to FIG. 1 and FIG. 3 , the intermediate connecting body 200 is connected to the remote end of the controller 100 . The intermediate connector 200 includes: a first rotary connector 201, a second rotary connector 202, a gun casing 203, a gun barrel 204, a nail box casing 205, a first nail box inner tube 206, and a second nail box inner tube 207 , transmission rod 208 and other components. The first rotary joint 201 and the second rotary joint 202 are connected into a whole by welding or other safe means, the proximal end of the whole is connected to the far end of the controller 100, and the far end is fixedly connected with the gun barrel 204, and the gun The outer surface of the tube 204 is installed with a smooth and anti-rust gun casing 203, and the axis of the gun barrel 204 constitutes the longitudinal direction described in this embodiment. The far end of the gun barrel 204 is detachably connected with the second nail box inner tube 207. At the same time, in order to avoid the second nail box inner tube 207 from being disengaged from the far end of the gun barrel 204 during the operation and causing surgical risks, the The far end of the gun barrel 204 is designed with an anti-disengagement mechanism, including a loading limiter 209, a rotation limiter 210 and a loading spring 211. When the second nail box inner tube 207 was loaded on the far end of the gun barrel 204, the loading stopper 209 prevented the second nail box inner tube 207 from disengaging from the gun barrel 204 under the action of the bias force applied by the loading spring 211, Unless the loading limit piece 209 is manually dialed away from the original position.
第一钉匣内管206和第二钉匣内管207合抱在一起后，由钉匣套管205将二者连接在一起，第一钉匣内管206和第二钉匣内管207所构成内腔的轴线与纵向同轴。传动杆208布置在枪管204和第一钉匣内管206、第二钉匣内管207构成的内腔里，可沿纵向往返运动。传动杆208的近端与齿条105连接，远端与执行器300的驱动组件3003的近端连接，用于将齿条105的纵向运动传递给驱动组件3003。After the first nail box inner tube 206 and the second nail box inner tube 207 are embraced together, the two are connected together by the nail box sleeve pipe 205, and the first nail box inner tube 206 and the second nail box inner tube 207 are formed The axis of the lumen is coaxial with the longitudinal direction. The transmission rod 208 is arranged in the inner cavity formed by the gun barrel 204 and the first nail box inner tube 206 and the second nail box inner tube 207, and can move back and forth in the longitudinal direction. The proximal end of the transmission rod 208 is connected to the rack 105 , and the distal end is connected to the proximal end of the driving assembly 3003 of the actuator 300 , for transmitting the longitudinal movement of the rack 105 to the driving assembly 3003 .
执行器300可设计为多种应用实例，本实施例引用了中国发明专利申请CN201210349356.7所描述的外科吻合器的执行器，如图1和图3所示，执行器300主要由钉砧组件3001、钉仓组件3002和驱动组件3003组成。钉砧组件3001主要由背盖板301、钉砧座302和钉砧片303连接而成，钉砧组件3001的下表面为缝合钉成型面。钉仓组件3002一般包括钉仓304、多个缝合钉305、多个推钉块306、钉仓座307和推钉滑块308。钉仓304的上表面为组织接触面，中间有一个导向槽，安装在钉仓座307中。钉砧复位弹簧309安装在中间连接体200的远端，始终使钉砧组件3001和钉仓组件3002保持张开的弹性趋势。驱动组件3003布置在钉仓304的导向槽和第一钉匣内管206、第二钉匣内管207构成的内腔中，可沿纵向往返运动。驱动组件3003的远端还包括上梁3101、下梁3102和一个刀刃3103。当驱动组件3003向远端运动时，驱动组件3003的上梁3101和下梁3102将驱使钉砧组件3001和钉仓组件3002从张开状态转为关闭状态，进而驱动推钉滑块308、推钉块306产生运动，将缝合钉305从钉仓304中推向钉砧组件3001的缝合钉成型面并在其中成型为类似B字形。在驱动缝合钉成型的过程中，驱动组件3003的刀刃3103切割已经缝合好的组织，完成器械的缝合和切割功能。The actuator 300 can be designed as a variety of application examples. This embodiment cites the actuator of the surgical stapler described in the Chinese invention patent application CN201210349356.7. As shown in Figures 1 and 3, the actuator 300 is mainly composed of an anvil assembly 3001, a staple cartridge assembly 3002 and a drive assembly 3003. The anvil assembly 3001 is mainly formed by connecting the back cover plate 301, the anvil base 302 and the anvil sheet 303, and the lower surface of the anvil assembly 3001 is a staple forming surface. The staple cartridge assembly 3002 generally includes a staple cartridge 304 , a plurality of staples 305 , a plurality of pusher blocks 306 , a staple cartridge seat 307 and a staple pusher slide 308 . The upper surface of the staple cartridge 304 is a tissue contact surface, and there is a guide groove in the middle, which is installed in the staple cartridge seat 307 . The nail anvil return spring 309 is installed on the distal end of the intermediate connecting body 200, and keeps the nail anvil assembly 3001 and the nail cartridge assembly 3002 in an elastic tendency to open all the time. The driving assembly 3003 is arranged in the inner cavity formed by the guide groove of the nail magazine 304 and the first nail magazine inner tube 206 and the second nail magazine inner tube 207, and can move back and forth along the longitudinal direction. The distal end of the driving assembly 3003 also includes an upper beam 3101 , a lower beam 3102 and a blade 3103 . When the driving assembly 3003 moves to the distal end, the upper beam 3101 and the lower beam 3102 of the driving assembly 3003 will drive the nail anvil assembly 3001 and the nail bin assembly 3002 from the open state to the closed state, and then drive the nail pushing slider 308, pushing The staple block 306 moves to push the staples 305 from the staple cartridge 304 to the staple forming surface of the anvil assembly 3001 and form a B-like shape therein. During the forming process of driving the staples, the blade 3103 of the driving assembly 3003 cuts the sutured tissues, completing the suturing and cutting functions of the instrument.
参见图1和图4，本实施例所述的外科器械的控制器处于初始状态时，齿条105的第二组齿1052与自动复位机构的自动复位滑块120的复位齿1201处于啮合状态，Referring to Fig. 1 and Fig. 4, when the controller of the surgical instrument described in this embodiment is in the initial state, the second set of teeth 1052 of the rack 105 is in mesh with the reset teeth 1201 of the automatic reset slider 120 of the automatic reset mechanism,
参见图5-图7，当操作击发扳机111时，击发扳机111通过拔齿113驱动齿条105、传动杆208沿纵向向远端移动，进而驱动驱动组件3003向远端运动；驱动组件3003向远端的运动驱使钉砧组件3001和钉仓组件3002从张开状态转为关闭状态。5-7, when the firing trigger 111 is operated, the firing trigger 111 drives the rack 105 and the transmission rod 208 to move longitudinally and distally through the tooth 113, and then drives the driving assembly 3003 to move distally; the driving assembly 3003 moves toward the distal end; Movement of the distal ends drives anvil assembly 3001 and staple cartridge assembly 3002 from an open state to a closed state.
操作击发扳机111的过程中，齿条105的第二组齿1052通过与自动复位滑块120的复位齿1201的啮合，驱动自动复位滑块120向远端移动，此时自动复位弹簧121被拉长并积蓄弹性能量。In the process of operating the firing trigger 111, the second set of teeth 1052 of the rack 105 is engaged with the reset teeth 1201 of the automatic reset slider 120 to drive the automatic reset slider 120 to move to the far end, and at this time the automatic reset spring 121 is pulled grow and store elastic energy.
在未操作击发保险扳机116的情况下，齿条105的第二组齿1052与自动复位滑块120的复位齿1201仍保持啮合状态。此时松开击发扳机111时，击发扳机111受扳机复位簧112的驱使回复初始位置，拨齿113与齿条105的第一组齿1051脱离啮合，齿条105、传动杆208和驱动组件3003在纵向上仅受到摩擦阻力和自动复位弹簧121积蓄弹性能量而产生的向近端的复位拉力。当自动复位弹簧121的复位拉力大于齿条105、传动杆208和驱动组件3003在纵向上仅受到摩擦阻力时，包括驱动组件3003在内的上述部件将向近端运动直到回复原位；驱动组件3003向近端回复原位的运动驱使钉砧组件3001和钉仓组件3002从关闭状态回复张开状态。When the safety trigger 116 is not operated, the second set of teeth 1052 of the rack 105 and the reset teeth 1201 of the automatic reset slider 120 are still engaged. When the firing trigger 111 is released at this time, the firing trigger 111 is driven by the trigger return spring 112 to return to the initial position, the shifting tooth 113 disengages from the first set of teeth 1051 of the rack 105, and the rack 105, the transmission rod 208 and the driving assembly 3003 In the longitudinal direction, it is only subjected to the return pulling force toward the proximal end generated by the frictional resistance and the elastic energy accumulated by the automatic return spring 121 . When the reset pulling force of the automatic return spring 121 is greater than the tooth bar 105, the transmission rod 208 and the drive assembly 3003 are only subject to frictional resistance in the longitudinal direction, the above-mentioned parts including the drive assembly 3003 will move proximally until returning to the original position; the drive assembly The proximal return movement of 3003 drives the anvil assembly 3001 and the staple cartridge assembly 3002 from the closed state back to the open state.
在未操作击发保险扳机116的情况下，参见图5-图7，齿条105向远端的运动因自动复位滑块120受到第一固定手柄101的第一限位凸台1014和第二固定手柄102的第二限位凸台1024的阻碍，操作击发扳机111时只能击发一次完整击发行程中的一部分行程，此时齿条105只能行进距离L1。此时，参见图16，刀架310的上梁3101沿钉砧座302近端的内部导轨的倾斜曲面向远端移动，直到接近倾斜曲面终点3021。When the firing safety trigger 116 is not operated, referring to Fig. 5-Fig. Due to the obstruction of the second limiting boss 1024 of the handle 102, when the firing trigger 111 is operated, only a part of the complete firing stroke can be fired once, and the rack 105 can only travel the distance L1 at this time. At this time, referring to FIG. 16 , the upper beam 3101 of the tool holder 310 moves distally along the inclined curved surface of the inner guide rail at the proximal end of the anvil 302 until approaching the end point 3021 of the inclined curved surface.
此时，操作击发保险扳机116时，将打开击发保险机构，在操作击发保险扳机116的一瞬间，参见图5、图8和图9，击发保险扳机116沿击发扳机111上的销轴1111旋转，致使击发保险扳机116的第一传动凸台1161驱使保险旋转块118进行沿第一固定手柄101的半轴1013相应旋转运动，保险旋转块118的旋转致使保险旋转块118的第二传动凸台1182推动自动复位滑块120的脱位凸台1204，驱使自动复位滑块120的远端沿其对称的第一滑动销1202、第二滑动销1203旋转，致使自动复位滑块120的复位齿1201与齿条105的第二组齿1052从啮合状态分离。At this time, when the firing safety trigger 116 is operated, the firing safety mechanism will be opened. At the moment when the firing safety trigger 116 is operated, referring to FIGS. 5, 8 and 9, the firing safety trigger 116 rotates along the pin shaft 1111 on the firing trigger 111. , so that the first transmission boss 1161 of firing the safety trigger 116 drives the safety rotation block 118 to perform a corresponding rotational movement along the semi-axis 1013 of the first fixed handle 101, and the rotation of the safety rotation block 118 causes the second transmission boss of the safety rotation block 118 to 1182 pushes the dislocation boss 1204 of the automatic reset slider 120, and drives the far end of the automatic reset slider 120 to rotate along its symmetrical first sliding pin 1202 and second sliding pin 1203, so that the reset tooth 1201 of the automatic reset slider 120 is aligned with the The second set of teeth 1052 of the rack 105 are disengaged from mesh.
此时，参见图10和图11，自动复位弹簧121积蓄的弹性能量将自动复位滑块120拉回原位，自动复位机构不再能驱使驱动组件3003回复原位，也就不能驱使钉砧组件3001和钉仓组件3002从关闭状态回复张开状态。由于齿条105不再受到自动复位滑块120的限制，击发扳机111可以操作一个完整的击发行程，驱使齿条105行进L2。此时，参见图18，刀架310的上梁3101沿钉砧座302的内部导轨行进到越过倾斜曲面终点3021。At this time, referring to Fig. 10 and Fig. 11, the elastic energy accumulated in the automatic return spring 121 will pull the automatic return slider 120 back to its original position, and the automatic return mechanism can no longer drive the drive assembly 3003 to return to its original position, and thus cannot drive the nail anvil assembly. 3001 and the staple cartridge assembly 3002 return to the open state from the closed state. Since the rack 105 is no longer restricted by the automatic reset slider 120, the firing trigger 111 can operate a complete firing stroke, driving the rack 105 to travel L2. At this time, referring to FIG. 18 , the upper beam 3101 of the knife rest 310 travels along the inner guide rail of the anvil 302 to cross the end point 3021 of the inclined curved surface.
参见图12和图13，在未操作击发扳机111的情况下，操作击发保险扳机116时，由于击发保险扳机116的销轴1111未处于设定的位置，击发保险扳机116的第一传动凸台1161不能驱使保险旋转块118进行相应旋转运动，也不能驱使自动复位滑块120的复位齿1201与齿条105的第二组齿1052从啮合状态分离，即不能打开击发保险机构，使自动复位机构失效。12 and 13, when the firing trigger 111 is not operated, when the firing safety trigger 116 is operated, since the pin shaft 1111 of the firing safety trigger 116 is not in the set position, the first transmission boss of the firing safety trigger 116 1161 cannot drive the safety rotating block 118 to carry out the corresponding rotational movement, and the reset tooth 1201 of the automatic reset slider 120 and the second set of teeth 1052 of the rack 105 cannot be separated from the meshing state, that is, the firing safety mechanism cannot be opened, so that the automatic reset mechanism fail.
参考图10，在操作击发扳机111并操作击发保险扳机116打开击发保险机构后，松开击发扳机111和击发保险扳机116，然后重复操作击发扳机111，就可以驱动组件310继续向远端移动，进而驱动安装在钉仓304中的缝合钉305在钉砧组件3001的缝合钉成型面中成型，驱动组件3003的刀刃3103切割已经缝合好的组织，完成器械的缝合和切割功能。With reference to Fig. 10, after operating the firing trigger 111 and operating the firing safety trigger 116 to open the firing safety mechanism, release the firing trigger 111 and the firing safety trigger 116, and then repeatedly operate the firing trigger 111, the drive assembly 310 can continue to move distally, Then, the staples 305 installed in the staple bin 304 are driven to form in the staple forming surface of the anvil assembly 3001, and the blade 3103 of the drive assembly 3003 cuts the sutured tissue to complete the suturing and cutting functions of the instrument.
在打开击发保险机构后，无论是否已经操作器械完成缝合和切割功能，还是没有进一步操作器械，在需要器械回复原始状态时，参见图14，手动向近端拉第一复位帽103和第二复位帽104，驱使拔齿113的击发齿1131与齿条105脱离啮合，驱使齿条105向近端运动直到恢复初始位置。在齿条105恢复初始位置的运动过程中，自动复位滑块120的复位齿1201与齿条105的第二组齿1052恢复啮合，使自动复位机构恢复初始状态。After opening the firing safety mechanism, regardless of whether the instrument has been operated to complete the suturing and cutting functions, or the instrument has not been further operated, when the instrument needs to return to its original state, refer to Figure 14, and manually pull the first reset cap 103 and the second reset cap 103 to the proximal end. The cap 104 drives the firing tooth 1131 of the extraction tooth 113 out of engagement with the rack 105, and drives the rack 105 to move proximally until returning to the original position. During the movement process of the rack 105 returning to the initial position, the reset tooth 1201 of the automatic reset slider 120 is meshed with the second set of teeth 1052 of the rack 105, so that the automatic reset mechanism returns to the initial state.
以上对本发明的具体实施例进行了描述。需要理解的是，本发明并不局限于上述特定实施方式，本领域技术人员可以在权利要求的范围内做出各种变形或修改，这并不影响本发明的实质内容。Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510500284.5ACN104997541A (en) | 2015-08-14 | 2015-08-14 | One-hand operable surgical instrument and operation method thereof |
| PCT/CN2015/090209WO2017028361A1 (en) | 2015-08-14 | 2015-09-22 | Single-handed-operation surgical instrument and operation method thereof |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510500284.5ACN104997541A (en) | 2015-08-14 | 2015-08-14 | One-hand operable surgical instrument and operation method thereof |
| Publication Number | Publication Date |
|---|---|
| CN104997541Atrue CN104997541A (en) | 2015-10-28 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510500284.5APendingCN104997541A (en) | 2015-08-14 | 2015-08-14 | One-hand operable surgical instrument and operation method thereof |
| Country | Link |
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| CN (1) | CN104997541A (en) |
| WO (1) | WO2017028361A1 (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20151028 |