CN102727268A - Linear cutting and sewing device employing novel cutter reset mechanism - Google Patents

Abstract

Translated fromChinese

本发明是有关于一种采用新型切刀复位机构的直线切割缝合器，包括固定夹板、闭合夹板、带刀齿条和切刀复位机构，切刀复位机构包括复位齿轮、受动齿轮和带刀齿轮：受动齿轮可转动的安装在固定夹板后端，包括固定连接的受动齿盘和止退齿盘；带刀齿轮同轴套装在受动齿盘与止退齿盘之间，一侧设有止退齿，并在与止退齿盘对应一侧设有止退机构；复位齿轮可转动的安装在闭合夹板的后端；闭合夹板上设有止退拨片；带刀齿条的后端连接有钢带，该钢带与带刀齿轮缠绕。本发明结构紧凑、合理，轻巧灵活，一只手即可完成切割缝合操作，且操作者几乎不会直接触碰到伤口，从而更适于推广使用。

The invention relates to a linear cutting suturer adopting a new cutter reset mechanism, which includes a fixed splint, a closed splint, a knife rack and a cutter reset mechanism. The cutter reset mechanism includes a reset gear, a driven gear and a belt knife. Gear: The driven gear is rotatably installed at the rear end of the fixed splint, including the fixedly connected driven tooth plate and the back-stop tooth plate; the knife gear is coaxially set between the driven tooth plate and the back-stop tooth plate, one side There are stop teeth, and a stop mechanism on the side corresponding to the stop tooth disc; the reset gear is rotatably installed on the rear end of the closing splint; the stop splint is provided on the closing splint; The rear end is connected with a steel belt, which is wound with a knife gear. The invention has a compact and reasonable structure, is light and flexible, can complete the cutting and suturing operation with one hand, and the operator hardly directly touches the wound, so it is more suitable for popularization and use.

Description

Translated fromChinese

一种采用新型切刀复位机构的直线切割缝合器A linear cutting and suturing device with a new cutter reset mechanism

技术领域technical field

本发明涉及一种外科手术用医疗器械，特别是涉及一种采用新型切刀复位机构的直线切割缝合器。The invention relates to a surgical medical instrument, in particular to a linear cutting and stapler adopting a new cutter reset mechanism.

背景技术Background technique

直线切割缝合器具有缝合与切割两个功能，在进行伤口缝合的同时，将多余的组织切除，直线切割缝合器已被广泛用于外科手术的伤口缝合、内部组织缝合与切割中。现有的直线切缝缝合器一般包括上、下两个钳夹，以及用于闭合上、下钳夹的闭合把手，相对设置在上、下钳夹前端的钉仓和抵钉座，设于钉仓内并可同时相对于钉仓移动的击发片和切刀，以及用于驱动击发片和切刀移动的推扭。钉仓内排列设有缝合钉，击发片依次推动推钉片并将缝合钉推向抵钉座，所述的切刀将位于钉仓和抵钉座之间的组织切断。The linear cutting stapler has two functions of suturing and cutting. While suturing the wound, excess tissue is removed. The linear cutting stapler has been widely used in surgical wound suturing, internal tissue suturing and cutting. Existing linear incision stapler generally comprises upper and lower two jaws, and is used for closing the closing handle of upper and lower jaws, and the staple bin and the nail abutting seat that are arranged on the front end of upper and lower jaws relatively, are located at The firing piece and the cutting knife in the staple cartridge and can move relative to the staple cartridge at the same time, and the push torque for driving the firing piece and the cutting knife to move. Staples are arranged in the staple cartridge, and the firing piece pushes the staple pusher in turn and pushes the staples to the staple abutment seat, and the cutter cuts off the tissue located between the staple cartridge and the staple abutment seat.

在实践中发现，上述现有的直线切割缝合器在结构和使用上仍存在不足，具体表现为：In practice, it is found that the above-mentioned existing linear cutting stapler still has deficiencies in structure and use, as shown in:

1、需两手同时操作才能完成切割缝合；1. Two hands are required to operate at the same time to complete the cutting and suturing;

2、推动推扭时，操作者的手易进入伤口。2. When pushing and twisting, the operator's hand is easy to enter the wound.

由此可见，上述现有的直线切割缝合器在结构与使用上，显然仍存在有不便与缺陷，而亟待加以进一步改进。如何能创设一种可以一只手完成切割缝合，且操作者几乎不会直接触碰到伤口的采用新型切刀复位机构的直线切割缝合器，实属当前本领域极需改进的目标。This shows that the above-mentioned existing linear cutting stapler obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently. How to create a linear cutting stapler that can complete cutting and suturing with one hand, and the operator can hardly directly touch the wound and adopts a new cutter reset mechanism, is a goal that needs improvement in the current art.

发明内容Contents of the invention

本发明要解决的技术问题是提供一种采用新型切刀复位机构的直线切割缝合器，使其适用于肠、胃切除的开放式手术，尤其适用于小切口、肥胖病人缩胃以及胃转流（GBP）等手术中，结构紧凑、合理，轻巧灵活，一只手即可完成切割缝合操作，且操作者几乎不会直接触碰到伤口，从而克服现有直线切割缝合器的不足。The technical problem to be solved by the present invention is to provide a linear cutting and suturing device with a new knife reset mechanism, so that it is suitable for open surgery of bowel and gastrectomy, especially suitable for small incisions, gastric reduction and gastric bypass for obese patients. (GBP) and other operations, the structure is compact, reasonable, light and flexible, and the cutting and suturing operation can be completed with one hand, and the operator hardly touches the wound directly, thereby overcoming the shortcomings of the existing linear cutting stapler.

为解决上述技术问题，本发明一种采用新型切刀复位机构的直线切割缝合器，包括固定夹板、抵钉座组件、闭合夹板、带刀齿条和切刀复位机构，其中，切刀复位机构包括复位齿轮、受动齿轮和带刀齿轮：受动齿轮可转动的安装在固定夹板后端，包括固定连接的受动齿盘和止退齿盘；带刀齿轮同轴套装在受动齿轮的受动齿盘与止退齿盘之间，带刀齿轮的一侧设有止退齿，并在与止退齿盘对应一侧设有阻止带刀齿轮相对于受动齿轮顺时针转动的止退机构；复位齿轮可转动的安装在闭合夹板的后端，闭合夹板与固定夹板闭合时，复位齿轮与受动齿轮的受动齿盘啮合；闭合夹板上设有与带刀齿轮的止退齿对应，阻止带刀齿轮顺时针转动的止退拨片；带刀齿条可前后滑动的安装在固定夹板内，带刀齿条的后端连接有钢带，该钢带与带刀齿轮缠绕，钢带的尾端固定在带刀齿轮上。In order to solve the above-mentioned technical problems, the present invention adopts a novel cutter reset mechanism for a linear cutting stapler, including a fixed splint, an anti-nail seat assembly, a closing splint, a knife rack and a cutter reset mechanism, wherein the cutter reset mechanism Including reset gear, driven gear and knife gear: the driven gear is rotatably installed on the rear end of the fixed splint, including the fixedly connected driven tooth plate and back-stop tooth plate; the knife gear is coaxially set on the driven gear Between the driven tooth plate and the back-stop tooth plate, one side of the knife gear is provided with a back-stop tooth, and the side corresponding to the back-stop tooth plate is provided with a stop for preventing the knife gear from rotating clockwise relative to the driven gear. Retraction mechanism; the reset gear is rotatably installed on the rear end of the closed splint. When the closed splint and the fixed splint are closed, the reset gear meshes with the driven tooth plate of the driven gear; Correspondingly, the anti-retraction paddle that prevents the knife gear from rotating clockwise; the knife rack can slide back and forth and is installed in the fixed splint. The rear end of the knife rack is connected with a steel belt, and the steel belt is wound with the knife gear. The tail end of the steel band is fixed on the belt knife gear.

作为本发明的一种改进，所述的复位齿轮与闭合夹板之间安装有复位弹簧。As an improvement of the present invention, a return spring is installed between the return gear and the closing splint.

所述的闭合夹板后端安装有固定销轴，复位齿轮通过该固定销轴可转动的安装在闭合夹板上。The rear end of the closing splint is equipped with a fixed pin shaft, and the reset gear is rotatably mounted on the closing splint through the fixed pin shaft.

所述的止退拨片上端与固定销轴固定连接，闭合夹板与固定夹板闭合时，止退拨片的下端与带刀齿轮的止退齿接触。The upper end of the anti-retraction paddle is fixedly connected with the fixed pin shaft, and when the closing splint and the fixed splint are closed, the lower end of the anti-retraction paddle contacts with the anti-retraction tooth of the belt knife gear.

所述的复位齿轮上设有手柄。The reset gear is provided with a handle.

所述的带刀齿轮的止退机构包括与受动齿轮的止退齿盘对应的止退块和板簧。The anti-retraction mechanism of the belt knife gear includes a non-retraction block and a leaf spring corresponding to the anti-retraction toothed plate of the driven gear.

所述的闭合夹板前端与固定夹板中部可转动连接。The front end of the closing splint is rotatably connected to the middle part of the fixed splint.

还包括抵抗固定夹板与闭合夹板闭合的扭簧或板簧。Also included are torsion or leaf springs that resist closing of the retaining and closing jaws.

采用这样的设计后，本发明适用于肠、胃切除的开放式手术，尤其适用于小切口、肥胖病人缩胃以及胃转流（GBP）等手术中，结构紧凑、合理，轻巧灵活，一只手即可完成切割缝合操作，且操作者几乎不会直接触碰到伤口，从而更适于推广使用。After adopting such a design, the present invention is suitable for open surgery of bowel and gastrectomy, especially suitable for operations such as small incision, stomach reduction for obese patients, and gastric bypass (GBP). The structure is compact, reasonable, light and flexible. The cutting and suturing operation can be completed by hand, and the operator hardly touches the wound directly, so it is more suitable for popularization.

附图说明Description of drawings

上述仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，以下结合附图与具体实施方式对本发明作进一步的详细说明。The above is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

图1是本发明采用新型切刀复位机构的直线切割缝合器的结构示意图。FIG. 1 is a schematic structural view of a linear cutting stapler using a new cutter reset mechanism in the present invention.

图2是图1的透视结构示意图。FIG. 2 is a schematic perspective view of the structure of FIG. 1 .

图3是图1的夹板闭合状态示意图。Fig. 3 is a schematic diagram of the closed state of the splint in Fig. 1 .

图4是本发明的带刀齿条结构示意图。Fig. 4 is a schematic diagram of the structure of the toothed rack of the present invention.

图5是本发明的受动齿轮结构示意图。Fig. 5 is a structural schematic diagram of the driven gear of the present invention.

图6是本发明的受动齿轮与带刀齿轮的组合结构后视示意图。Fig. 6 is a schematic rear view of the combined structure of the driven gear and the knife gear of the present invention.

图7是图6的侧视结构示意图。FIG. 7 is a schematic side view of the structure of FIG. 6 .

图8是本发明的复位齿轮后视结构示意图。Fig. 8 is a rear view structural schematic diagram of the reset gear of the present invention.

具体实施方式Detailed ways

请参阅图1-8所示，本发明一种采用新型切刀复位机构的直线切割缝合器，主要包括固定夹板1、抵钉座组件2、闭合夹板3、带刀齿条43和切刀复位机构。Please refer to Fig. 1-8, a linear cutting stapler adopting a novel cutter reset mechanism of the present invention mainly includes afixed splint 1, ananti-nail seat assembly 2, aclosing splint 3, aknife rack 43 and a cutter reset mechanism.

固定夹板1前部安装有钉仓组件11，中部设有前、后转动销12、13，抵钉座组件2的后端与前转动销12连接，闭合夹板3的前端与后转动销13连接，并可分别安装有抵抗固定夹板1与抵钉座组件2、闭合夹板3闭合的扭簧或板簧。此外，闭合夹板上还安装有止退拨片34。The front part of thefixed splint 1 is equipped with anail bin assembly 11, and the middle part is provided with front and rear rotatingpins 12, 13. The rear end of thenail block assembly 2 is connected with the front rotatingpin 12, and the front end of theclosing splint 3 is connected with the rear rotatingpin 13. , and can be respectively installed with torsion springs or leaf springs that resist the closing of thefixed splint 1 and theanvil seat assembly 2 and theclosing splint 3 . In addition, a stop plectrum 34 is also installed on the closing splint.

带刀齿条43可前后滑动的安装在固定夹板1内，并在带刀齿条43的后端连接有钢带435。Theknife rack 43 is installed in thefixed splint 1 slidably back and forth, and the rear end of theknife rack 43 is connected with asteel belt 435 .

切刀复位机构包括复位齿轮61、受动齿轮62和带刀齿轮63。The knife reset mechanism includes areset gear 61 , a drivengear 62 and a knife gear 63 .

其中，受动齿轮62可转动的安装在固定夹板1的后端，包括固定连接的受动齿盘621和止退齿盘622。Wherein, the drivengear 62 is rotatably installed on the rear end of thefixed splint 1 , and includes a driventoothed plate 621 and astop toothed plate 622 fixedly connected.

复位齿轮61可转动的安装在闭合夹板3的后端，闭合夹板3与固定夹板1闭合时，复位齿轮61与受动齿轮62的受动齿盘621啮合。Thereset gear 61 is rotatably installed on the rear end of theclosing splint 3 , and when theclosing splint 3 and thefixed splint 1 are closed, thereset gear 61 meshes with the driventoothed disc 621 of the drivengear 62 .

带刀齿轮63同轴套装在受动齿轮62的受动齿盘621与止退齿盘622之间，带刀齿轮63的一侧设有在闭合夹板3与固定夹板1闭合时，可与止退拨片34配合阻止带刀齿轮63顺时针（以图1视角为基准）转动的止退齿631，并在与止退齿盘622对应一侧设有阻止带刀齿轮63相对于受动齿轮62顺时针转动的止退机构。带刀齿条43通过435与带刀齿轮63连接，钢带435与带刀齿轮63缠绕，钢带435的尾端固定在带刀齿轮63上。The knife gear 63 is coaxially set between the driventoothed plate 621 of the drivengear 62 and the back-stop toothed plate 622. One side of the knife gear 63 is provided to connect with thestop plate 3 when theclosing splint 3 and thefixed splint 1 are closed. The retracting paddle 34 cooperates with theanti-retraction tooth 631 that prevents the belt knife gear 63 from rotating clockwise (based on the perspective of FIG. 62 anti-retreat mechanisms that rotate clockwise. Bandknife tooth bar 43 is connected with band knife gear 63 by 435, andsteel band 435 is wound with band knife gear 63, and the tail end ofsteel band 435 is fixed on band knife gear 63.

带刀齿轮63的止退机构可由如图所示的止退块632和板簧633组成，止退块632与带刀齿轮63可转动连接，板簧633一端与带刀齿轮63固定连接，另一端与受动齿盘622上的齿从两侧夹住止退块632。止退机构与受动齿轮62的止退齿盘622配合，使得带刀齿轮63只可相对于受动齿轮62逆时针转动，而不可发生相对顺时针转动。The back-stop mechanism of band knife gear 63 can be made up of back-stop block 632 andplate spring 633 as shown in the figure, and back-stop block 632 is rotatably connected with band knife gear 63, andplate spring 633 one end is fixedly connected with band knife gear 63, and another One end and the teeth on the driventoothed disc 622 clamp thestop block 632 from both sides. The backstop mechanism cooperates with thebackstop toothed plate 622 of the drivengear 62 , so that the knife gear 63 can only rotate counterclockwise relative to the drivengear 62 , but cannot rotate relatively clockwise.

进行切割缝合操作时，随着带刀齿条43的前移，带刀齿轮63顺时针转动，此时，止退块632推动受动齿盘622，受动齿轮62随带刀齿轮63一并顺时针转动（如依图6视角，则为逆时针推动转动）。When performing cutting and sewing operations, along with the forward movement of theband knife rack 43, the band knife gear 63 rotates clockwise. Rotate clockwise (according to the perspective in Figure 6, push and rotate counterclockwise).

当完成切割、缝合操作后，保持闭合夹板3与固定夹板1的闭合状态，通过顺时针转动复位齿轮61，复位齿轮61带动受动齿轮62逆时针转动， 受动齿盘622推动止退块632，从而带动带刀齿轮63同步转动，带刀齿轮63卷起钢带435，带刀齿条43被拉回至击发前位置。After the cutting and sewing operations are completed, keep the closedsplint 3 and the fixedsplint 1 in the closed state, and by turning thereset gear 61 clockwise, thereset gear 61 drives the drivengear 62 to rotate counterclockwise, and the driventoothed disc 622 pushes thestop block 632 , thus driving the knife gear 63 to rotate synchronously, the knife gear 63 rolls up thesteel belt 435, and theknife rack 43 is pulled back to the pre-firing position.

切刀完全复位后，将复位齿轮61逆时针转回原位，受动齿轮62随之顺时针转动，此时，止退拨片34抵住带刀齿轮的止退齿631阻止带刀齿轮63顺时针转动，因而保持不动，板簧633受压变形，止退块632从受动齿盘622上滑过。After the cutter is fully reset, thereset gear 61 is turned back to its original position counterclockwise, and the drivengear 62 rotates clockwise thereupon. At this time, the back-stop paddle 34 is against the back-stop teeth 631 of the belt-knife gear to stop the belt-knife gear 63 Rotate clockwise, thus keep still, theleaf spring 633 is compressed and deformed, and the stop block 632 slides over the driventoothed plate 622 .

较佳的，复位齿轮61上还可设有如图所示的手柄611，以便于切刀复位时顺时针转动复位齿轮61。并在复位齿轮61与闭合夹板3之间安装复位弹簧64，切刀复位完成时，复位齿轮61在弹簧64作用下自动逆时针转回原位。Preferably, thereset gear 61 can also be provided with ahandle 611 as shown in the figure, so as to rotate thereset gear 61 clockwise when the cutter is reset. And resetspring 64 is installed betweenreset gear 61 and closingsplint 3, when cutter reset was completed, resetgear 61 turned back to original position counterclockwise automatically underspring 64 effect.

本发明可在闭合夹板3的后端安装固定销轴612，复位齿轮61即可通过该固定销轴实现可转动安装，止退拨片34的上端则可与该固定销轴固定连接，闭合闭合夹板3时，止退拨片34的下端即作用于带刀齿轮63的止退齿631上。The present invention can install fixedpin shaft 612 at the rear end of closingsplint 3, and resetgear 61 can realize rotatable installation through this fixed pin shaft, and the upper end of backstop paddle 34 then can be fixedly connected with this fixed pin shaft, closes and closes. When clampingplate 3, the lower end of stop plectrum 34 promptly acts on thestop tooth 631 of band knife gear 63.

以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，本领域技术人员利用上述揭示的技术内容做出些许简单修改、等同变化或修饰，均落在本发明的保护范围内。The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Those skilled in the art make some simple modifications, equivalent changes or modifications by using the technical content disclosed above, all of which fall within the scope of the present invention. within the scope of protection of the invention.

Claims (8)

Translated fromChinese

1.一种采用新型切刀复位机构的直线切割缝合器，其特征在于包括固定夹板、抵钉座组件、闭合夹板、带刀齿条和切刀复位机构，其中，切刀复位机构包括复位齿轮、受动齿轮和带刀齿轮：1. A linear cutting stapler adopting a novel cutter reset mechanism, characterized in that it includes a fixed splint, an anti-nail seat assembly, a closed splint, a knife rack and a cutter reset mechanism, wherein the cutter reset mechanism includes a reset gear , driven gear and gear with knife:受动齿轮可转动的安装在固定夹板后端，包括固定连接的受动齿盘和止退齿盘；The driven gear is rotatably installed on the rear end of the fixed splint, including the fixedly connected driven toothed plate and the backing toothed plate;带刀齿轮同轴套装在受动齿轮的受动齿盘与止退齿盘之间，带刀齿轮的一侧设有止退齿，并在与止退齿盘对应一侧设有阻止带刀齿轮相对于受动齿轮顺时针转动的止退机构；The gear with knife is coaxially set between the driven tooth plate of the driven gear and the back-stop tooth plate. One side of the knife gear is provided with a back-stop tooth, and the side corresponding to the back-stop tooth plate is provided with a stop belt knife. A backstop mechanism for the gear to rotate clockwise relative to the driven gear;复位齿轮可转动的安装在闭合夹板的后端，闭合夹板与固定夹板闭合时，复位齿轮与受动齿轮的受动齿盘啮合；The reset gear is rotatably installed on the rear end of the closing splint. When the closing splint and the fixed splint are closed, the reset gear meshes with the driven toothed plate of the driven gear;闭合夹板上设有与带刀齿轮的止退齿对应，阻止带刀齿轮顺时针转动的止退拨片；The closing splint is provided with a back-stop paddle corresponding to the back-stop teeth of the knife gear, which prevents the knife gear from rotating clockwise;带刀齿条可前后滑动的安装在固定夹板内，带刀齿条的后端连接有钢带，该钢带与带刀齿轮缠绕，钢带的尾端固定在带刀齿轮上。The toothed rack with knife can slide back and forth and is installed in the fixed splint, the rear end of the toothed rack with knife is connected with a steel belt, the steel belt is wound with the toothed gear, and the tail end of the steel strip is fixed on the toothed gear.2.根据权利要求1所述的一种采用新型切刀复位机构的直线切割缝合器，其特征在于所述的复位齿轮与闭合夹板之间安装有复位弹簧。2. A linear cutting stapler using a novel cutter reset mechanism according to claim 1, characterized in that a reset spring is installed between the reset gear and the closing splint.3.根据权利要求1所述的一种采用新型切刀复位机构的直线切割缝合器，其特征在于所述的闭合夹板后端安装有固定销轴，复位齿轮通过该固定销轴可转动的安装在闭合夹板上。3. A linear cutting stapler using a novel cutter reset mechanism according to claim 1, wherein a fixed pin is installed at the rear end of the closed splint, and the reset gear is rotatably installed through the fixed pin. on the closed splint.4.根据权利要求3所述的一种采用新型切刀复位机构的直线切割缝合器，其特征在于所述的止退拨片上端与固定销轴固定连接，闭合夹板与固定夹板闭合时，止退拨片的下端与带刀齿轮的止退齿接触。4. A linear cutting stapler adopting a novel cutter reset mechanism according to claim 3, characterized in that the upper end of the back-stop paddle is fixedly connected with the fixed pin shaft, and when the closing splint and the fixed splint are closed, the stop The lower end of the paddle is in contact with the back-stop teeth of the band knife gear.5.根据权利要求1所述的一种采用新型切刀复位机构的直线切割缝合器，其特征在于所述的复位齿轮上设有手柄。5. A linear cutting stapler using a novel cutter reset mechanism according to claim 1, characterized in that said reset gear is provided with a handle.6.根据权利要求1所述的一种采用新型切刀复位机构的直线切割缝合器，其特征在于所述的带刀齿轮的止退机构包括与受动齿轮的止退齿盘对应的止退块和板簧，其中，止退块与带刀齿轮可转动连接，板簧一端与带刀齿轮固定连接，另一端与受动齿盘上的齿从两侧夹住止退块。6. A linear cutting stapler using a novel cutter reset mechanism according to claim 1, wherein the stop mechanism of the belt knife gear includes a stop corresponding to the stop tooth disc of the driven gear. A block and a leaf spring, wherein the anti-retraction block is rotatably connected to the gear with a knife, one end of the leaf spring is fixedly connected with the gear with a knife, and the other end clamps the anti-retraction block from both sides with the teeth on the driven toothed disc.7.根据权利要求1-6中任一项所述的一种采用新型切刀复位机构的直线切割缝合器，其特征在于所述的闭合夹板前端与固定夹板中部可转动连接。7. A linear cutting stapler using a novel cutter reset mechanism according to any one of claims 1-6, characterized in that the front end of the closing splint is rotatably connected to the middle part of the fixed splint.8.根据权利要求7所述的一种采用新型切刀复位机构的直线切割缝合器，其特征在于还包括抵抗固定夹板与闭合夹板闭合的扭簧或板簧。8. A linear cutting stapler adopting a novel cutter reset mechanism according to claim 7, further comprising a torsion spring or a leaf spring that resists the closing of the fixing splint and the closing splint.

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