技术领域technical field
本实用新型涉及医疗器械技术领域，尤其涉及一种钉仓组件及应用该钉仓组件的医用吻合器。The utility model relates to the technical field of medical devices, in particular to a staple cartridge assembly and a medical stapler using the staple cartridge assembly.
背景技术Background technique
医用吻合器是对肠道等生理组织进行外科手术时经常使用的一种医疗器械，它是医学上使用的替代传统手工缝合的设备，由于现代科技的发展和制作技术的改进，目前临床上使用的吻合器质量可靠，使用方便，严密、松紧合适，尤其是其缝合快速、操作简便及很少有副作用和手术并发症等优点，有时还使得过去无法切除的肿瘤手术得以病灶切除，很受国内外临床外科医生的青睐和推崇。 在腔镜外科手术中，腔镜外科切割吻合器通常被用于消化道中食管、胃、十二指肠、小肠、结肠、直肠、阑尾、胆、胰和脾等切割吻合手术，也被用于呼吸道中肺和气管等切割吻合手术，还被用于泌尿生殖系统中膀胱和子宫等切割吻合手术，可以减少手术时间，提高手术质量。Medical stapler is a medical device often used in surgical operations on physiological tissues such as the intestinal tract. It is a medical device that replaces traditional manual suturing. Due to the development of modern technology and the improvement of manufacturing technology, it is currently used clinically. The quality of the stapler is reliable, easy to use, tight and suitable for tightness, especially its fast suturing, easy operation, and few side effects and surgical complications. Favored and respected by clinical surgeons. In laparoscopic surgery, laparoscopic surgical cutting and staplers are usually used for cutting and anastomosis of the esophagus, stomach, duodenum, small intestine, colon, rectum, appendix, gallbladder, pancreas and spleen in the digestive tract. Resection and anastomosis of the lung and trachea in the respiratory tract are also used in the resection and anastomosis of the bladder and uterus in the genitourinary system, which can reduce operation time and improve operation quality.
发明内容Contents of the invention
本实用新型的目的在于提供一种钉仓组件及应用该钉仓组件的医用吻合器。The purpose of the utility model is to provide a staple cartridge assembly and a medical stapler using the staple cartridge assembly.
为实现上述目的，本实用新型一实施方式提供一种钉仓组件，包括钉仓、枢轴连接钉仓的钉砧，以及工字刀，钉砧包括一钉砧面，钉仓包括一钉仓面，其特征在于，钉仓组件还包括一设置于钉砧和钉仓之间的弹性件，弹性件始终向枢轴点近端的钉砧施加一驱使钉砧面向钉仓面闭合的作用力。In order to achieve the above object, one embodiment of the present utility model provides a staple cartridge assembly, including a staple cartridge, an anvil pivotally connected to the staple cartridge, and an I-shaped knife. The nail anvil includes an anvil surface, and the staple cartridge includes a staple cartridge surface, it is characterized in that the staple cartridge assembly also includes an elastic member arranged between the nail anvil and the staple cartridge, the elastic member always applies a force to the staple anvil at the proximal end of the pivot point to drive the nail anvil to close to the nail cartridge surface .
作为本实用新型一实施方式的进一步改进，钉仓包括钉仓本体和可配接钉仓本体的钉仓架，弹性件压缩于钉仓架和钉砧之间。As a further improvement of an embodiment of the present invention, the staple cartridge includes a staple cartridge body and a staple cartridge frame that can be matched with the staple cartridge body, and the elastic member is compressed between the staple cartridge frame and the anvil.
作为本实用新型一实施方式的进一步改进，弹性件包括第一端部、第二端部，以及连接第一端部和第二端部的中间部，第一端部与钉仓架连接，第二端部为自由端，在钉仓组件位于闭合状态下，第二端部与钉砧相抵靠。As a further improvement of an embodiment of the present invention, the elastic member includes a first end, a second end, and an intermediate portion connecting the first end and the second end, the first end is connected to the staple cartridge frame, and the second The two ends are free ends, and when the staple cartridge assembly is in a closed state, the second end abuts against the nail anvil.
作为本实用新型一实施方式的进一步改进，弹性件设置为弹片，在钉仓组件位于初始状态下，第二端部与钉砧分离设置，中间部与钉砧相抵靠。As a further improvement of an embodiment of the present invention, the elastic member is configured as a shrapnel, and when the cartridge assembly is in the initial state, the second end is separated from the anvil, and the middle part is abutted against the anvil.
作为本实用新型一实施方式的进一步改进，在钉仓组件位于初始状态下，钉砧近端与钉砧面呈角度设置的壁与中间部相抵靠。As a further improvement of an embodiment of the present invention, when the staple cartridge assembly is in the initial state, the wall formed at an angle between the proximal end of the anvil and the surface of the anvil abuts against the middle part.
作为本实用新型一实施方式的进一步改进，第一端部设有一第一配合面，第二端部设置有第二配合面，钉仓组件在闭合状态下，第一配合面与钉仓面平行设置，第二配合面与钉砧面平行设置。As a further improvement of an embodiment of the present utility model, the first end is provided with a first mating surface, and the second end is provided with a second mating surface. When the staple cartridge assembly is in a closed state, the first mating surface is parallel to the staple cartridge surface. Setting, the second mating surface is set parallel to the nail anvil surface.
作为本实用新型一实施方式的进一步改进，第一端部还有一连接件，弹性件通过连接件与钉仓架固定连接。As a further improvement of an embodiment of the present invention, the first end part also has a connecting piece, and the elastic piece is fixedly connected to the magazine frame through the connecting piece.
作为本实用新型一实施方式的进一步改进，钉砧通过连接件与钉仓架焊接固定。As a further improvement of an embodiment of the present invention, the nail anvil is welded and fixed to the nail cartridge frame through the connecting piece.
作为本实用新型一实施方式的进一步改进，钉仓组件还包括设置于钉砧近端的限位件，钉仓组件在初始状态下，工字刀、限位件、弹性件分别向钉砧施加作用力，使钉砧到达平衡状态。As a further improvement of an embodiment of the present utility model, the staple cartridge assembly also includes a limiter arranged at the proximal end of the anvil. In the initial state of the staple cartridge assembly, the I-shaped knife, the limiter, and the elastic member are respectively applied to the anvil. Force, so that the nail anvil reaches the equilibrium state.
为实现上述目的，本实用新型一实施方式提供一种医用吻合器，所述医用吻合器包括上述任一种技术方案的钉仓组件。To achieve the above object, an embodiment of the present invention provides a medical stapler, which includes the staple cartridge assembly of any one of the above technical solutions.
与现有技术相比，本实用新型提供的钉仓组件和医用吻合器，可有效地减小工字刀驱动钳口闭合所需的力，避免工字刀断裂，降低工字刀损耗，延长工字刀工作寿命。Compared with the prior art, the staple cartridge assembly and the medical stapler provided by the utility model can effectively reduce the force required for the I-shaped knife to drive the jaws to close, avoid the breakage of the I-shaped knife, reduce the loss of the I-shaped knife, and prolong the The working life of the I-shaped knife.
附图说明Description of drawings
图1是本实用新型医用吻合器一实施方式的结构示意图；Fig. 1 is a schematic structural view of an embodiment of a medical stapler of the present invention;
图2是钉仓组件一实施方式钳口打开时的结构示意图；Fig. 2 is a structural schematic diagram of an embodiment of the nail cartridge assembly when the jaws are opened;
图3是钉仓组件一实施方式未安装钉砧的俯视图；Fig. 3 is a top view of an embodiment of the staple cartridge assembly without an anvil installed;
图4是图3 C-C方向的剖视图；Fig. 4 is the sectional view of Fig. 3 C-C direction;
图5是图4圈中部分的局部放大图；Fig. 5 is a partially enlarged view of the part circled in Fig. 4;
图6是钉仓组件一实施方式钳口打开的俯视图；Fig. 6 is a top view of an embodiment of the nail cartridge assembly with the jaws open;
图7是图6 C-C方向的剖视图；Fig. 7 is the sectional view of Fig. 6 C-C direction;
图8是图7圈中部分的局部放大图；Fig. 8 is a partial enlarged view of the part circled in Fig. 7;
图9是钉仓组件一实施方式钳口闭合时的俯视图；Fig. 9 is a top view of an embodiment of the nail cartridge assembly when the jaws are closed;
图10是图9 C-C方向的剖视图；Fig. 10 is the sectional view of Fig. 9 C-C direction;
图11是图10圈中部分的局部放大图。Fig. 11 is a partially enlarged view of the part circled in Fig. 10 .
具体实施方式Detailed ways
以下将结合附图所示的具体实施方式对本实用新型进行详细描述。但这些实施方式并不限制本实用新型，本领域的普通技术人员根据这些实施方式所做出的结构、方法、或功能上的变换均包含在本实用新型的保护范围内。The utility model will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present utility model, and the structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present utility model.
本说明书内所描述的表达位置与方向的词，均是以器械操作者作为参照，靠近操作者的一端为近端，远离操作者的一端为远端。同时，在本申请中，定义医用吻合器的下方为握持手柄由壳体延伸的方向，与该下方相对的，即定义为医用吻合器的上方。The words expressing position and direction described in this manual are all referred to the operator of the instrument, the end close to the operator is the proximal end, and the end far away from the operator is the distal end. At the same time, in this application, the bottom of the medical stapler is defined as the direction in which the grip handle extends from the housing, and the bottom is defined as the top of the medical stapler.
在本实用新型的实施方式中，以腔镜外科切割吻合器为示例对本实用新型的医用吻合器做具体的阐释，但应当说明的是，在下述的实施方式中所涉及的技艺精神可以被替换地利用到其它形式的医用吻合器上。In the embodiment of the present utility model, the medical stapler of the present utility model is specifically explained by taking the endoscopic surgical cutting stapler as an example, but it should be noted that the technical spirit involved in the following embodiments can be replaced It can be applied to other forms of medical staplers.
参照图1及图2，医用吻合器100用于将多个缝合钉施加到人体的生理组织上，同时相应的对生理组织实施切割。医用吻合器100包括器械平台10及钉仓组件20，两者配合使用。器械平台10提供动力击发机构及连杆11。连杆11近端连接动力击发机构，远端连接钉仓组件20。动力击发机构设置有握持手柄12。钉仓组件20一般通过螺旋结构、铆合结构或其他相配合的结构活动安装于连杆11的远端，以方便地与器械平台10连接或拆卸。如此，已使用过的钉仓组件20可重新使用或者一次性的钉仓组件20可从器械平台10上被除去，并更换成未使用过的一次性钉仓组件20。或者，钉仓组件20也可整体地永久并直接连接到医用吻合器的器械平台10的远端。Referring to FIG. 1 and FIG. 2 , the medical stapler 100 is used to apply a plurality of staples to the physiological tissues of the human body, and simultaneously cut the physiological tissues accordingly. The medical stapler 100 includes an instrument platform 10 and a staple cartridge assembly 20, both of which are used together. The instrument platform 10 provides a power firing mechanism and a connecting rod 11 . The proximal end of the connecting rod 11 is connected to the power firing mechanism, and the distal end is connected to the staple cartridge assembly 20 . The power firing mechanism is provided with a grip handle 12 . The staple cartridge assembly 20 is generally movably mounted on the distal end of the connecting rod 11 through a helical structure, a riveting structure or other matching structures, so as to be easily connected or detached from the instrument platform 10 . In this way, the used staple cartridge assembly 20 can be reused or the disposable staple cartridge assembly 20 can be removed from the instrument platform 10 and replaced with an unused disposable staple cartridge assembly 20 . Alternatively, the staple cartridge assembly 20 can also be integrally permanently and directly connected to the distal end of the instrument platform 10 of the medical stapler.
钉仓组件20包括枢转连接的钉砧21及钉仓，钉砧21位于钉仓上方，钉砧21包括一钉砧面211，钉仓包括一与钉砧面相对的钉仓面223。钉砧21与钉仓闭合时，生理组织固定夹紧在钉砧面211和钉仓面223之间，以便进行切割、缝合等操作。钉仓包括钉仓本体22及钉仓架23，钉仓架23为长条状的托槽，承载钉仓本体22和/或推刀杆24。The staple cartridge assembly 20 includes a pivotally connected nail anvil 21 and a staple cartridge. The nail anvil 21 is located above the staple cartridge. The nail anvil 21 includes an anvil surface 211 . The staple cartridge includes a staple cartridge surface 223 opposite to the nail anvil surface. When the anvil 21 and the staple cartridge are closed, the physiological tissue is fixedly clamped between the anvil surface 211 and the staple cartridge surface 223 for operations such as cutting and suturing. The staple cartridge includes a staple cartridge body 22 and a staple cartridge frame 23 , and the staple cartridge frame 23 is a strip-shaped bracket for carrying the staple cartridge body 22 and/or the pusher rod 24 .
图1示出在本实用新型一实施方式中，钉仓架23远端容纳钉仓本体22，钉仓架23近端容纳钉仓连接件27。推刀杆在钉仓架23及钉仓连接件27包围而成长形通道中延伸及往复运动，推刀杆的远端与工字刀25连接，推刀杆的近端与器械平台10连接，受器械平台10的动力击发机构驱动。如此构造的钉仓组件20为不可弯折的直杆状。FIG. 1 shows that in one embodiment of the present invention, the distal end of the staple cartridge rack 23 accommodates the staple cartridge body 22 , and the proximal end of the staple cartridge rack 23 accommodates the staple cartridge connector 27 . The pusher rod extends and reciprocates in the elongated channel surrounded by the staple cartridge frame 23 and the staple cartridge connector 27, the far end of the pusher rod is connected with the I-shaped knife 25, and the proximal end of the pusher rod is connected with the instrument platform 10. Driven by the power firing mechanism of the instrument platform 10 . The staple cartridge assembly 20 constructed in this way is in the shape of an inflexible straight rod.
再次参照图1所示，钉仓组件20还包括设于钉仓本体22内并可同时相对钉仓本体22移动的推钉杆和工字刀25，以及用于驱动推钉杆和工字刀25移动的击发机构。工字刀25与推刀杆远端连接，这种连接可以通过焊接或一体成型等方式固定连接，也可以为可拆卸的活动连接。钉砧21及钉仓本体22均设置走刀槽，工字刀25沿走刀槽由推刀杆推进及拉回。钉仓本体22内在走刀槽的两侧排列设置有钉仓孔，钉仓孔内设有推钉片及缝合钉；钉仓本体22内还设有击发块。击发时，在击发机构的驱动下，推刀杆带动位于其远端的工字刀25向器械远端移动，同时，工字刀25也驱动击发块依次把推钉片推向钉砧21，此时缝合钉也依次被推钉片推向钉砧21，实现了位于钉仓本体22和钉砧21之间的生理组织得以缝合；同时，工字刀25也将生理组织切断。Referring again to Fig. 1, the nail cartridge assembly 20 also includes a pusher rod and a knife 25 which are arranged in the staple cartridge body 22 and can move relative to the nail cartridge body 22 at the same time, and are used to drive the nail pusher rod and the knife knife. 25 moving firing mechanism. The I-shaped knife 25 is connected with the far end of the push knife bar, and this connection can be fixedly connected by means of welding or integral molding, and can also be a detachable movable connection. Both the nail anvil 21 and the staple bin body 22 are provided with a knife-feeding groove, and the I-shaped knife 25 is pushed and pulled back by the pusher rod along the knife-feeding groove. The staple cartridge body 22 is provided with staple cartridge holes arranged on both sides of the knife groove, and the staple cartridge holes are provided with pusher pieces and staples; the staple cartridge body 22 is also provided with a firing block. When firing, under the drive of the firing mechanism, the push knife rod drives the I-shaped knife 25 located at its far end to move to the far end of the instrument. At this time, the staples are also pushed toward the anvil 21 by the nail pushing piece in turn, so that the physiological tissue positioned between the staple cartridge body 22 and the anvil 21 is stitched up; meanwhile, the I-shaped knife 25 also cuts off the physiological tissue.
图2示出医用吻合器的钉仓组件20的又一实施方式，其与前一实施方式的区别在于，钉仓组件20可弯折。Fig. 2 shows another embodiment of the staple cartridge assembly 20 of the medical stapler, which differs from the previous embodiment in that the staple cartridge assembly 20 is bendable.
该实施方式中，钉仓架23容纳钉仓本体22，钉仓连接件（图未示）的远端与钉仓架23的近端相连，且钉仓连接件容纳推刀杆24。钉仓架23近端与钉仓连接件的远端通过上、下转接块活动连接，形成可折弯的关节。结合参照图2~图5，上、下转接块26、27上下邻接，上、下转接块26、27之间以及下转接块27与钉仓架23之间均为枢转连接。推刀杆24采用可折弯的弹性结构。如此构造的钉仓组件20可在钉仓架23与钉仓连接件的连接点处弯折，操作者握持的方向与切割生理组织的方向可以成一定角度，更便于手术操作。In this embodiment, the cartridge rack 23 accommodates the cartridge body 22 , the distal end of the cartridge connector (not shown) is connected to the proximal end of the cartridge rack 23 , and the cartridge connector accommodates the pusher rod 24 . The proximal end of the staple cartridge rack 23 is movably connected with the distal end of the staple cartridge connector through the upper and lower adapter blocks to form a bendable joint. Referring to FIGS. 2 to 5 , the upper and lower transfer blocks 26 , 27 are adjacent up and down, and the upper and lower transfer blocks 26 , 27 and between the lower transfer block 27 and the magazine frame 23 are pivotally connected. The push rod 24 adopts a bendable elastic structure. The staple cartridge assembly 20 constructed in this way can be bent at the connection point between the staple cartridge rack 23 and the staple cartridge connector, and the direction of the operator's grip and the direction of cutting physiological tissues can form a certain angle, which is more convenient for surgical operation.
本实用新型医用吻合器/钉仓组件处于初始状态时，钉砧21近端的钉砧尾受到外力作用，以保持钉砧21和钉仓呈打开状，工字刀25位于钉仓组件20的近端。When the medical stapler/staple cartridge assembly of the present utility model is in the initial state, the anvil tail at the proximal end of the anvil 21 is subjected to an external force to keep the anvil 21 and the staple cartridge open, and the I-shaped knife 25 is positioned at the center of the staple cartridge assembly 20. near end.
吻合器/钉仓组件处于闭合状态时，受工字刀25驱动，钉砧21和钉仓闭合，其间可夹紧待切割生理组织，工字刀25相对于初始状态而言，向医用吻合器/钉仓组件的远端移动了一定距离，但总体而言仍然位于钉仓组件20的近端。When the stapler/staple cartridge assembly is in the closed state, driven by the I-shaped knife 25, the anvil 21 and the staple cartridge are closed, and the physiological tissue to be cut can be clamped therebetween. The distal end of the staple cartridge assembly has moved a certain distance, but is generally still located at the proximal end of the staple cartridge assembly 20.
吻合器/钉仓组件处于击发状态时，钉砧21和钉仓仍然保持闭合，工字刀25由钉仓组件的近端向远端移动，切割夹紧的组织，并可在钉仓组件的远端受到限位停止移动。 When the stapler/staple cartridge assembly is in the firing state, the anvil 21 and the staple cartridge remain closed, and the I-shaped knife 25 moves from the proximal end of the staple cartridge assembly to the distal end to cut the clamped tissue, and can be inserted into the staple cartridge assembly. The far end is limited to stop moving. the
工字刀25主体的远端设置切割刃，工字刀主体上下两端在垂直于主体的方向上延伸，形成翼状结构，该一对翼状结构分别配合至钉砧21及钉仓的走刀槽，以支持工字刀25沿走刀槽往复运动。The far end of the main body of the I-shaped knife 25 is provided with a cutting edge, and the upper and lower ends of the main body of the I-shaped knife extend in a direction perpendicular to the main body to form a wing-like structure. , to support the reciprocating movement of the I-shaped knife 25 along the knife groove.
具体的，参照图2与图7所示，钉砧21包括钉砧本体及钉砧盖。钉砧本体包括钉砧面211以及与钉砧面相背且可与工字刀25配合的抵触面；钉砧本体上还设有走刀槽；钉砧盖设置于所述抵触面的一侧，且与抵触面配合形成一允许所述工字刀25的翼状结构通过的滑道。钉砧本体及钉砧盖在钉砧21的远端相连。Specifically, referring to FIG. 2 and FIG. 7 , the anvil 21 includes an anvil body and an anvil cover. The anvil body includes a nail anvil surface 211 and a conflicting surface opposite to the nail anvil surface and compatible with the I-shaped knife 25; the nail anvil body is also provided with a cutting groove; the nail anvil cover is arranged on one side of the conflicting surface, And cooperate with the conflicting surface to form a slideway that allows the wing-shaped structure of the I-shaped knife 25 to pass through. The anvil body and the anvil cover are connected at the far end of the anvil 21 .
钉砧21的远端为自由端，近端的两外侧壁还分别设置有凸轴213。具体的，参照图2，钉仓架23的两侧壁形成凹槽230，凹槽230与钉砧21的凸轴213配合。凸轴213穿设于凹槽230上，以使钉砧21的近端与钉仓架23枢转地连接。The distal end of the nail anvil 21 is a free end, and the two outer walls of the proximal end are respectively provided with protruding shafts 213 . Specifically, referring to FIG. 2 , grooves 230 are formed on both side walls of the staple cartridge rack 23 , and the grooves 230 cooperate with the protruding shafts 213 of the nail anvil 21 . The protruding shaft 213 passes through the groove 230 so that the proximal end of the anvil 21 is pivotally connected to the cartridge frame 23 .
参照图8及图9所示，钉砧21近端还设置一垂直于钉砧面211的凸台214。工字刀25运动至钉砧21近端时，其翼状结构与凸台214抵靠，向凸台214施加向近端的力，驱使钉砧21绕凸轴213旋转。8 and 9, the proximal end of the anvil 21 is also provided with a boss 214 perpendicular to the surface 211 of the anvil. When the I-shaped knife 25 moves to the proximal end of the anvil 21 , its wing-like structure abuts against the boss 214 , and applies a proximal force to the boss 214 to drive the anvil 21 to rotate around the protruding shaft 213 .
参照图3~图11，在钉仓架23近端设置弹性件28。弹性件28呈“Z”字形，包括第一端部281、第二端部282及连接两个端部的中间部283。弹性件28第一端部281连接于钉仓架23，第二端部282为自由端。其中，第一端部281设置有一配合面，该配合面与钉仓架相接且与钉仓面223平行。第二端部282也设置一配合面，该配合面在钉砧23闭合后与钉砧23尾部平行且抵接。第一端部281还设置一连接头，通过焊接连接头与钉仓架23实现弹性件28与钉仓的固定连接。Referring to FIGS. 3 to 11 , an elastic member 28 is provided at the proximal end of the staple cartridge rack 23 . The elastic member 28 is in a "Z" shape and includes a first end portion 281 , a second end portion 282 and a middle portion 283 connecting the two end portions. The first end 281 of the elastic member 28 is connected to the cartridge frame 23, and the second end 282 is a free end. Wherein, the first end portion 281 is provided with a mating surface, and the mating surface is in contact with the cartridge holder and is parallel to the cartridge surface 223 . The second end portion 282 is also provided with a mating surface, which is parallel to and abuts against the tail of the anvil 23 after the anvil 23 is closed. The first end portion 281 is also provided with a connecting head, and the elastic member 28 is fixedly connected to the cartridge holder 23 by welding the connecting head and the cartridge holder 23 .
需要理解的是，图中实施例所示的弹性件28构造是为了适应拥挤空间中弹性件28的施力端与固定端不在同一竖直方向上的情况。在钉仓组件20不可弯折的实施方式中，不需要设置上、下转接块，钉砧21近端的容留空间增大，弹性件28可以适应性地等同变换为其他形状的弹力部件，例如可以为螺旋弹簧，或“L”形弹片。It should be understood that the configuration of the elastic member 28 shown in the embodiment in the figure is to adapt to the situation that the force application end and the fixed end of the elastic member 28 are not in the same vertical direction in a crowded space. In the non-bendable embodiment of the staple cartridge assembly 20, there is no need to provide upper and lower transition blocks, the accommodation space at the proximal end of the nail anvil 21 is increased, and the elastic member 28 can be adaptively transformed into an elastic member of other shapes. For example, it can be a helical spring, or an "L"-shaped shrapnel.
参照图3~图5，钉砧21未装配时，弹性件28自由端不受力，处于非压缩状态。Referring to Figures 3 to 5, when the anvil 21 is not assembled, the free end of the elastic member 28 is not stressed and is in a non-compressed state.
参照图6~图8，钉砧21装配后，在初始状态下，钉砧21的近端尾部与弹性件28抵接，此时弹性件28处于深度压缩状态，会给钉砧21一个向钉仓方向的力，驱使钉砧21与钉仓间的夹角变小，但这个力是不被期望的。为了克服上述不被期望的力，工字刀25被设定为受到向近端施加的作用力，拉动凸台214，使得钉砧21绕凸轴213旋转，使钉砧面211和钉仓面223张开成预定的角度，即所谓的“钳角”。此时，钉砧21的近端尾部绕凸轴213向下运动，压迫弹性件28中间部283，使弹性件28处于被深度压缩状态。下转接块27的远端面271设置为阶梯状倾斜平面，弹性件28被压缩至与该倾斜平面抵接时，不可被继续压缩。需要理解的是，在钉仓组件20不可弯折的实施方式中，不需要设置上下转接块。此时，显而易见地可以在与下转接块相应的位置设置限位件，以使钉砧21旋转到一定钳角时，弹性件28与限位件相抵触而停止被继续压缩，防止钳口张开过大。限位件的具体结构为本领域技术人员常规知识范围，在此不作赘述。Referring to Figures 6 to 8, after the nail anvil 21 is assembled, in the initial state, the proximal end of the nail anvil 21 abuts against the elastic member 28. At this time, the elastic member 28 is in a deeply compressed state, which will give the nail anvil 21 a direction toward the nail. The force in the direction of the cartridge drives the angle between the anvil 21 and the staple cartridge to become smaller, but this force is not expected. In order to overcome the above-mentioned undesired force, the H-shaped knife 25 is set to be subjected to the active force applied to the proximal end, pulling the boss 214, so that the nail anvil 21 rotates around the protruding shaft 213, so that the nail anvil surface 211 and the nail cartridge surface 223 opens into a predetermined angle, the so-called "clamp angle". At this time, the proximal tail of the anvil 21 moves downward around the protruding shaft 213, pressing the middle part 283 of the elastic member 28, so that the elastic member 28 is in a deeply compressed state. The distal surface 271 of the lower transfer block 27 is configured as a stepped inclined plane, and when the elastic member 28 is compressed to abut against the inclined plane, it cannot be further compressed. It should be understood that, in the non-bendable embodiment of the staple cartridge assembly 20, there is no need to set up and down transition blocks. At this time, it is obvious that a stopper can be provided at a position corresponding to the lower adapter block, so that when the anvil 21 rotates to a certain jaw angle, the elastic member 28 will conflict with the stopper and stop being continuously compressed, preventing the jaws from being continuously compressed. Open too far. The specific structure of the limiting member is within the scope of conventional knowledge of those skilled in the art, and will not be repeated here.
参照图9~图11，操作者推动工字刀25沿走刀槽向远端运动时，钉砧21绕图示方向旋转，钉砧面211和钉仓面223逐渐闭合，这一过程中，钉砧21近端与钉砧面223呈角度设置的端壁和弹性件28始终保持抵接，且接触面由中间部283逐渐过渡到第二端部282。钉砧21的旋转释放了弹性件28，与此同时，弹性件28产生反作用力促进钉砧21旋转，减小了工字刀25推动钉砧21旋转所需的力。在闭合后击发过程中，由于弹性件28始终处于压缩状态，即钉砧尾部始终压缩弹性件28，因此，被压缩的弹性件28给钉砧21近端一向上的力，保持器械的闭合。Referring to Figures 9 to 11, when the operator pushes the I-shaped knife 25 to move toward the distal end along the knife groove, the anvil 21 rotates around the direction shown in the figure, and the anvil surface 211 and the staple cartridge surface 223 are gradually closed. During this process, The end wall of the proximal end of the anvil 21 and the anvil surface 223 at an angle are always in contact with the elastic member 28 , and the contact surface gradually transitions from the middle portion 283 to the second end portion 282 . The rotation of the nail anvil 21 releases the elastic member 28, and at the same time, the elastic member 28 produces a reaction force to promote the rotation of the nail anvil 21, reducing the force required for the I-shaped knife 25 to push the nail anvil 21 to rotate. In the process of firing after closing, since the elastic member 28 is always in a compressed state, that is, the tail of the anvil compresses the elastic member 28 all the time, the compressed elastic member 28 gives an upward force to the proximal end of the anvil 21 to keep the instrument closed.
需要理解的是，钉砧21安装后，不论钳口张开或闭合，弹性件28一直处于相对被压缩状态，上述“释放了弹性件28 ”是相较于弹性件28被深度压缩的状态而言，而并非是表征弹性件28的受压缩力的绝对状态。如此，在钳口闭合的过程中，弹性件28始终促使钉砧21旋转，可有效地减小工字刀驱动钳口闭合所需的力，避免工字刀断裂，降低工字刀损耗，延长工字刀工作寿命。It should be understood that after the nail anvil 21 is installed, regardless of whether the jaws are opened or closed, the elastic member 28 is always in a relatively compressed state, and the above-mentioned "releasing the elastic member 28" is compared with the state in which the elastic member 28 is deeply compressed. In other words, it does not represent the absolute state of the compressive force of the elastic member 28 . In this way, in the process of closing the jaws, the elastic member 28 always promotes the rotation of the anvil 21, which can effectively reduce the force required for the I-shaped knife to drive the jaws to close, avoid the breakage of the I-shaped knife, reduce the loss of the I-shaped knife, and extend the The working life of the I-shaped knife.
应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施方式中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.
上文所列出的一系列的详细说明仅仅是针对本实用新型的可行性实施方式的具体说明，它们并非用以限制本实用新型的保护范围，凡未脱离本实用新型技艺精神所作的等效实施方式或变更均应包含在本实用新型的保护范围之内。The series of detailed descriptions listed above are only specific descriptions for the feasible implementation modes of the present utility model, and they are not used to limit the protection scope of the present utility model. Embodiments or modifications should be included within the protection scope of the present utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857698.4UCN204379340U (en) | 2014-12-30 | 2014-12-30 | Nail bin groupware and apply the Medical stapler of this nail bin groupware |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857698.4UCN204379340U (en) | 2014-12-30 | 2014-12-30 | Nail bin groupware and apply the Medical stapler of this nail bin groupware |
| Publication Number | Publication Date |
|---|---|
| CN204379340Utrue CN204379340U (en) | 2015-06-10 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420857698.4UExpired - Fee RelatedCN204379340U (en) | 2014-12-30 | 2014-12-30 | Nail bin groupware and apply the Medical stapler of this nail bin groupware |
| Country | Link |
|---|---|
| CN (1) | CN204379340U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110403660A (en)* | 2019-08-21 | 2019-11-05 | 舒拓 | Cartridge assemblies and staplers for staplers |
| CN112438767A (en)* | 2019-08-29 | 2021-03-05 | 苏州天臣国际医疗科技有限公司 | Closing driving mechanism and medical anastomat comprising same |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110403660A (en)* | 2019-08-21 | 2019-11-05 | 舒拓 | Cartridge assemblies and staplers for staplers |
| CN112438767A (en)* | 2019-08-29 | 2021-03-05 | 苏州天臣国际医疗科技有限公司 | Closing driving mechanism and medical anastomat comprising same |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | Address after:215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after:Tianchen International Medical Technology Co.,Ltd. Address before:215021 science and Technology Plaza, Jinji Lake Road International Science and Technology Park, Suzhou Industrial Park, Jiangsu, 21A Patentee before:TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. | |
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20150610 | |
| CF01 | Termination of patent right due to non-payment of annual fee |