CN102138814B - Surgical stapling instrument - Google Patents

Surgical stapling instrument Download PDF

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Publication number
CN102138814B
CN102138814B CN 201010547390 CN201010547390A CN102138814B CN 102138814 B CN102138814 B CN 102138814B CN 201010547390 CN201010547390 CN 201010547390 CN 201010547390 A CN201010547390 A CN 201010547390A CN 102138814 B CN102138814 B CN 102138814B
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China
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lower jaw
mechanism
safety
jaw
safety mechanism
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CN 201010547390
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Chinese (zh)
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CN102138814A (en
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陈望东
叶艳平
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苏州天臣国际医疗科技有限公司
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Abstract

本发明揭示了一种外科缝切器械,包括:可相互闭合或打开的上、下钳夹,所述下钳夹近端的凹形内部设有滑动块,滑动块的远端连接推钉机构及推刀机构,其特征在于:所述下钳夹与滑动块之间设有保险机构,所述保险机构具有保险状态和释放状态,当所述保险机构处于保险状态时,所述保险机构连接于下钳夹与滑动块之间并限制所述滑动块沿下钳夹的轴线运动,当所述保险机构处于释放状态时,所述下钳夹与滑动块脱离。 The present invention discloses a surgical instrument surgical stapler, comprising: a staple mechanism to open or close each upper and lower jaw, the lower jaw concave inner slide block is provided with a proximal end, a distal end connected to the push slider and push knife means, characterized in that: said safety mechanism is provided between the lower jaw and the slide block, the securing mechanism having a released state and the safety state, when the safety mechanism is in the state of the insurance, the safety mechanism is connected between the lower jaw and the slide block and said slide block to limit axial movement in the lower jaw, when the safety mechanism in a released state, and the slider from the lower jaw. 本发明的有益效果主要体现在:结构简单,操作有效,具有很好的推广价值。 The advantages are mainly reflected in: simple structure, efficient operation, with good promotional value.

Description

外科缝切器械 The surgical instrument surgical stapler

技术领域 FIELD

[0001]本发明涉及一种外科缝切器械,属于医疗器械技术领域。 [0001] The present invention relates to a surgical instrument surgical stapler, belonging to the technical field of medical instruments.

背景技术 Background technique

[0002] 外科缝切器械被广泛用于外科手术中用于伤口缝合、内部组织缝合与切割,典型的外科缝切器械如美国专利US5129570所揭示,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。 [0002] The surgical knife cutting instrument is widely used in surgery for wound closure, internal tissue suturing and cutting, knife cutting typical surgical instrument as disclosed in U.S. Patent No. US5129570, stapling and cutting has two functions, during wound closure at the same time, the excess tissue removed. 该类外科缝切器械一般包括上、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砧和钉仓,设于钉仓内并可同时相对所述钉仓移动的推钉杆、推钉片和切刀,以及驱动所述推钉片和切刀移动的推钮。 Such surgical instrument generally includes a surgical stapler, the two lower jaws, as well as for the closing, grip the lower jaw is closed, the upper and lower jaw disposed opposite the front end of the anvil and staple cartridge, the staple cartridge can be provided relative to the staple while the staple push rod magazine movement, push the staple sheet and the cutter and driving the staple pushing plate and a push button to move the cutter. 所述钉仓内排列设置有缝合钉,所述推钉片将缝合钉推向钉砧,所述切刀将位于钉仓和钉砧之间的组织切断。 Are arranged within the cartridge has a staple, the staple pushing the sheet staples toward the anvil, the tissue cutter is located between the staple cartridge and the staple anvil cutting.

[0003] 为了防止在上下钳夹还未闭合时推动推钮产生的误操作,现有技术的外科缝切器械都会设置一种保险机构。 [0003] In order to prevent pushing the push button is generated when the upper and lower jaws closed yet erroneous operation, the prior art surgical stapling instrument are provided cut kind of insurance agencies.

[0004] 美国专利US5129570号揭示了一种保险机构,在器械的中部设置一个带有切刀通道与推钉杆通道的保险块,在切刀下面设置弹片。 [0004] U.S. Patent No. US5129570 discloses a safety mechanism, in the middle of the safety block is provided with a cutter device to push the shank passage channel is provided below the cutting blade shrapnel. 当器械处于打开位置(即上、下两个钳夹未闭合)时,弹片将切刀弹起,使切刀无法通过切刀通道,起到保险作用;当器械的上、下两个钳夹闭合后,钉仓压迫切刀顶部,使切刀克服弹片的弹力并恢复到与切刀通道对准的状态,这时保险解除,器械可以击发使用。 When the instrument is in the open position (i.e. upper and lower jaws are not closed), the shrapnel bounce cutter, the cutter blade can not pass through the channel, insurance effect; on the instrument when the lower two jaws after closing, the cartridge compression top cutter, the cutter against the elastic force of the elastic piece returns to the state and the channel aligned with the cutter, when the arming, firing the instrument can be used.

[0005] 美国专利US7055730号揭示了另一种保险机构,在器械的中部设置一个带有推刀杆通道与推钉杆通道的保险块,该保险块在扭簧作用下可绕器械转动。 [0005] U.S. Patent No. US7055730 discloses another safety mechanism, in the middle of the instrument is provided with a safety push block pushes the shank with the shank passage channel, the action of the torsion spring in the safety block can rotate about the instrument. 当器械处于打开位置(即上、下两个钳夹未闭合)时,保险块发生扭转,使推钉杆与推刀杆都无法通过通道,起到保险作用;当器械的上、下两个钳夹闭合后,钉仓压迫保险块使其克服扭簧的弹力而恢复正常位置(即推钉杆与推刀杆分别与其保险块上的通道对准),使推钉杆与推刀杆都可通过保险块,这时保险解除,器械可以击发使用。 When the instrument is in the open position (i.e. upper and lower jaws are not closed), the safety block is twisted, so that the push rod and push the staples through the channel can not Arbor, insurance effect; on the instrument when the lower two after closing the jaws, the staple cartridge so that the protector block compression against the spring force of the torsion spring back to normal position (i.e., the staple pushing the push rod channel on the shank are aligned with their safety block), so that the push rod to push the staples are Arbor by safety block, then arming, firing the instrument can be used.

发明内容 SUMMARY

[0006] 本发明的目的是提出一种具有简单结构的保险机构的外科缝切器械。 Objective [0006] The present invention is to provide a surgical instrument surgical stapler safety mechanism having a simple structure.

[0007] 本发明的目的,将通过以下技术方案得以实现: [0007] The object of the present invention, will be achieved by the following technical solution:

[0008] 一种外科缝切器械,包括:可相互闭合或打开的上、下钳夹,所述下钳夹的凹形内部设有滑动块,滑动块的远端连接推钉机构及推刀机构,所述下钳夹与滑动块之间设有保险机构,所述保险机构具有保险状态和释放状态,当所述保险机构处于保险状态时,所述保险机构连接于下钳夹与滑动块之间并限制所述滑动块沿下钳夹的轴线运动,当所述保险机构处于释放状态时,所述下钳夹与滑动块脱离。 [0008] A surgical instrument surgical stapler, comprising: a closed or open each of the upper and lower jaw, the lower jaw of the inner concave slide block is provided, connected to the distal end of the slider and push the staple pushing mechanism knife insurance mechanism is provided between the slider and the lower jaw, the securing mechanism having a released state and the safety state, when the safety mechanism is in the safety state, the securing means connected to the lower jaw with the sliding block between said slide block and to limit axial movement in the lower jaw, when the safety mechanism in a released state, and the slider from the lower jaw.

[0009] 进一步地,所述保险机构为设置在下钳夹内表面的弹片和相应设置在滑动块上的凹槽,当所述弹片处于保险状态时,所述弹片卡在所述凹槽内。 [0009] Further, the safety mechanism is a leaf spring disposed in the lower surface of the jaw and a corresponding groove provided on the sliding block, when the leaf spring is in the safety state, the leaf spring within the groove card.

[0010] 进一步地,所述弹片焊接于所述下钳夹的内表面上。 [0010] Further, the leaf spring is welded to the inner surface of the lower jaw. [0011] 进一步地,所述弹片为下钳夹的表面冲压而成。 [0011] Further, the leaf spring stamped as a lower jaw surface.

[0012] 进一步地,所述弹片与下钳夹的内表面之间呈锐角设置。 [0012] Further, disposed at an acute angle between the leaf spring and the inner surface of the lower jaw.

[0013] 进一步地,所述保险机构的触发机构为上钳夹。 [0013] Further, the trigger mechanism for the upper jaw insurance institutions.

[0014] 再进一步地,所述保险机构的触发机构为上钳夹的侧壁。 [0014] Still further, the trigger mechanism of the safety mechanism is on the side wall of the jaw.

[0015] 本发明的有益效果主要体现在:结构简单,操作有效,具有很好的推广价值。 [0015] Advantageous effects of the present invention is mainly embodied in: simple construction, efficient operation, and has good promotional value.

附图说明 BRIEF DESCRIPTION

[0016] 图1是下钳夹的结构示意图,此时上、下钳夹未闭合。 [0016] FIG. 1 is a schematic view of the lower jaw, upper case, the lower jaw is not closed.

[0017] 图2是图1中沿AA的剖视图。 [0017] FIG. 2 is a sectional view taken along AA in FIG.

[0018] 图3是图1中滑动块的结构示意图,此时下钳夹仅仅显示弹片。 [0018] FIG. 3 is a schematic view of the slider of FIG. 1, only this time the display jaw shrapnel.

[0019] 图4是上、下钳夹的结构示意图,此时上、下钳夹已闭合。 [0019] FIG. 4 is a top, schematic view of the structure of the lower jaw, upper case, the lower jaw is closed.

[0020] 图5是图4中沿BB的剖视图。 [0020] FIG. 5 is a sectional view along BB of FIG. 4.

[0021]其中: [0021] wherein:

[0022] I上钳夹2下钳夹3滑动块 [0022] I 2 on the lower jaw jaw slider 3

[0023] 11侧壁21弹片31凹槽 [0023] 31 recess 11 sidewall 21 shrapnel

具体实施方式 Detailed ways

[0024] 如图1-3所示,本发明提供了一种外科缝切器械的保险机构。 [0024] 1-3, the present invention provides a surgical instrument of the surgical stapler insurance. 与现有技术一致,所述外科缝切机构包括塑料外壳,可相互闭合或打开的上、下钳夹,上钳夹I的远端设有钉砧,下钳夹2的远端设有钉仓。 Consistent with the prior art, the surgical knife cutting mechanism comprises a plastic housing, can be opened or closed on each other, the lower jaw, the upper jaw is provided with a distal end of the anvil I, at the distal end of jaw 2 is provided with nails warehouse. 当然,上下钳夹的位置可以互换,本发明为了表达清楚才如此定义。 Of course, the position of the upper and lower jaws are interchangeable, for clarity of the present invention is so defined. 下钳夹2的近端的凹形内部设有滑动块3,所述滑动块远端设有推钉杆和推刀杆,分别用于击发缝合钉和切割组织。 Inner concave proximal jaw 2 is provided under the slide block 3, the distal end of the slider and the push rod is provided with a staple pushing Arbor, respectively, for firing staples and cutting tissue. 使用时,将组织放在钉砧与钉仓之间,然后对合上、下钳夹,闭合锁紧钳,使上、下钳夹夹紧组织,然后推动击发推钮,即可实施组织的缝合和切割。 In use, tissue is placed between the anvil and the staple cartridge, and then closed, the lower jaw, locking pliers is closed, the upper and lower jaws clamp the tissue, and then firing push the push button, the organization can be implemented sewing and cutting.

[0025] 本发明的一个重要的特点在于:所述下钳夹2与滑动块3之间设有保险机构,所述保险机构具有保险状态和释放状态,当所述保险机构处于保险状态时,所述保险机构连接于下钳夹2与滑动块3之间并限制所述滑动块3沿下钳夹2的轴线运动;当所述保险机构处于释放状态时,所述下钳夹2与滑动块3脱离,此时滑动块可以沿下钳夹2的轴线运动。 [0025] An important feature of the invention is characterized in: the lower jaw 2 and the slider 3 is provided between the safety mechanism, the safety mechanism has a safety state and a released state when the mechanism is in the locking state of the insurance, the securing means connected to the lower jaw 2 and the slider 3 between the sliding axis and to limit movement of the jaws 2 along the lower block 3; when the safety mechanism in a released state, the sliding of the lower jaw 2 from block 3, this time along the lower jaw can slide block movement axis 2.

[0026] 进一步地,所述保险机构为设置在下钳夹2内表面的弹片21和相应设置在滑动块3表面的凹槽31,当所述弹片21处于保险状态时,即该弹片21与下钳夹2的内表面之间呈锐角设置时,所述弹片21卡设于所述凹槽31内。 [0026] Further, the safety mechanism is a leaf spring 2 and the surface of the lower jaw 21 a recess 3 provided on the respective surface of the sliding block 31, when the leaf spring 21 is insured state, i.e. the elastic piece 21 and the lower when disposed at an acute angle between the inner surface of the jaw 2, the leaf spring 21 disposed in the card recess 31. 由于如此设置,使得滑动块3与下钳夹2在轴向位置上相对固定,起到保险作用。 Since arranged such that the slide block 3 and the lower jaw 2 relative to the fixed axial position, insurance effect. 所述弹片21焊接于所述下钳夹2的内表面上,也可以为下钳夹2的表面冲压而成。 The leaf spring 21 welded to the inner surface of the lower jaw 2, the surface 2 of the jaw may be stamped for the next. 这样的设计成本更低,加工也更加方便。 Such a lower cost design, processing more convenient.

[0027] 进一步地,所述保险机构的触发机构为上钳夹的侧壁。 [0027] Further, the trigger mechanism of the safety mechanism is on the side wall of the jaw. 如图4和图5所示,当上、下两个钳夹1、2闭合后,上钳夹I的侧壁11对所述弹片21产生一个压紧力,使弹片21变形并最终与所述下钳夹的内表面平行。 4 and 5, when the upper and lower jaws 1,2 are closed, the jaws of the elastic plate 11 of the side wall I 21 generates a pressing force that the dome 21 is deformed and eventually said lower jaw parallel to the inner surface. 这时,该弹片21与滑动块3即脱离,滑动块3便可沿下钳夹的轴线移动。 In this case, the elastic piece 21 from the sliding block 3 i.e., 3 can be moved along the sliding axis of the jaw blocks.

[0028] 手术时,将组织放在上、下钳夹的工作区域,即钉仓、钉砧间,闭合器械,此时上钳夹的近端卡入下钳夹近端内,挤压保险机构的弹片21,使其脱离滑动块上的凹槽31,此时保险解除,滑动块3可以在击发推钮的带动下向前移动,进而推动推钉杆及推刀杆向前移动,继而将钉推出于钉仓并钉入组织,切刀在2个平行的缝线中将组织切开,一直到钉仓内的钉都被击发出来,最后将滑动块3拉回器械近端的初始位置。 [0028] surgery, tissue is placed on the lower jaw of the working area, i.e., a staple cartridge, an anvil between the closure device, then the card into the proximal end of the jaws within the proximal jaw, pressing the insurance leaf spring means 21 to disengage the recess 31 in the slide block, the arming this case, the slider can be moved forward driven by the firing of the push button 3, thus pushing the push rod and push the staples move forward Arbor, then Release staples driven into the tissue and the staple cartridge, the suture in the tissue cutter two parallel cut, until the staples within the staple cartridge have fired issued to the last of the initial device 3 back to the proximal end of the slide block position. 最后,按压释放按钮,打开器械,手术完成。 Finally, press the release button to open the equipment, the procedure is completed.

[0029] 本优选实施例中,所述保险机构的触发机构为上钳夹的侧壁,当然也可以是其别的部位,例如底部。 [0029] embodiment, the triggering mechanism for the securing means on the sidewall of the present preferred embodiment of the jaw, which of course may be other parts, such as the bottom. 只要放上下钳夹闭合时,能压迫弹片变形即可。 Put down as long as the jaws are closed, it can be modified to compression dome.

[0030] 本发明尚有多种实施方式,凡采用等同变换或者等效变换而形成的所有技术方案,均落在本发明的保护范围之内。 [0030] The various embodiments of the present invention, there, where the use of all technical equivalents transform or equivalent conversion scheme formed, are within the scope of the present invention.

Claims (7)

1. 一种外科缝切器械,包括:可相互闭合或打开的上、下钳夹,所述下钳夹近端的凹形内部设有滑动块,滑动块的远端连接推钉机构及推刀机构,其特征在于:所述下钳夹与滑动块之间设有保险机构,所述保险机构具有保险状态和释放状态,当所述保险机构处于保险状态时,所述保险机构连接于下钳夹与滑动块之间并限制所述滑动块沿下钳夹的轴线运动,当所述保险机构处于释放状态时,所述下钳夹与滑动块脱离。 A surgical instrument surgical stapler, comprising: closing or opening each of the upper and lower jaw, the lower jaw concave inner slide block is provided with a proximal end, a distal end connected to the slider and push the staple pushing mechanism knife means, characterized in that: said safety mechanism is provided between the lower jaw and the slide block, the securing mechanism having a released state and the safety state, when the safety mechanism is in the insurance state, the securing means connected to the lower and the slide block between the jaws and limiting movement of said slider along the axis of the lower jaw, when the safety mechanism in a released state, and the slider from the lower jaw.
2.根据权利要求1所述的外科缝切器械,其特征在于:所述保险机构为设置在下钳夹内表面的弹片和相应设置在滑动块上的凹槽,当所述弹片处于保险状态时,所述弹片卡在所述凹槽内。 2. The surgical instrument of the surgical stapler as claimed in claim 1, wherein: said safety mechanism is a leaf spring disposed in the lower surface of the jaw and grooves on respective sliding block arrangement, when the leaf spring is in the safety state , the leaf spring within the groove card.
3.根据权利要求2所述的外科缝切器械,其特征在于:所述弹片焊接于所述下钳夹的内表面上。 3. The surgical stapler according to claim surgical instrument of claim 2, wherein: the leaf spring is welded to the inner surface of the lower jaw.
4.根据权利要求2所述的外科缝切器械,其特征在于:所述弹片为下钳夹的表面冲压ίίϋ 。 4. The surgical stapler according to claim surgical instrument of claim 2, wherein: the leaf spring punched ίίϋ surface of the lower jaw.
5.根据权利要求2所述的外科缝切器械,其特征在于:所述弹片与下钳夹的内表面之间呈锐角设置。 5. The surgical stapler according to claim surgical instrument of claim 2, wherein: the inner surface at an acute angle is provided between the leaf spring and the lower jaw.
6.根据权利要求1所述的外科缝切器械,其特征在于:所述保险机构的触发机构为上甜夹。 6. The surgical instrument of the surgical stapler as claimed in claim 1, wherein: the trigger mechanism is a safety mechanism on the clips sweet.
7.根据权利要求1或6所述的任意一种外科缝切器械,其特征在于:所述保险机构的触发机构为上钳夹的侧壁。 The surgical stapler of any one surgical instrument of claim 1 or claim 6, wherein: the trigger mechanism of the safety mechanism is on the side wall of the jaw.
CN 201010547390 2010-11-17 2010-11-17 Surgical stapling instrument CN102138814B (en)

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US9855045B2 (en) * 2014-12-09 2018-01-02 Covidien Lp Anvil assembly delivery system

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US7055730B2 (en) 2000-10-13 2006-06-06 Tyco Healthcare Group Lp Surgical fastener applying apparatus
CN101869497A (en) 2010-06-10 2010-10-27 苏州天臣国际医疗科技有限公司 Sewing and cutting machine
CN201949070U (en) 2010-11-17 2011-08-31 苏州天臣国际医疗科技有限公司 Surgical sewing and cutting instrument

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