WO2014094563A1 - 一种直线缝合切割装置 - Google Patents

一种直线缝合切割装置 Download PDF

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Publication number
WO2014094563A1
WO2014094563A1 PCT/CN2013/089081 CN2013089081W WO2014094563A1 WO 2014094563 A1 WO2014094563 A1 WO 2014094563A1 CN 2013089081 W CN2013089081 W CN 2013089081W WO 2014094563 A1 WO2014094563 A1 WO 2014094563A1
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WIPO (PCT)
Prior art keywords
safety block
staple cartridge
cutter
disposed
block
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PCT/CN2013/089081
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English (en)
French (fr)
Inventor
陈望东
舒拓
傅开芬
叶艳平
裴永旺
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苏州天臣国际医疗科技有限公司
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Publication of WO2014094563A1 publication Critical patent/WO2014094563A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0023—Surgical instruments, devices or methods, e.g. tourniquets disposable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A61B2017/07285—Stapler heads characterised by its cutter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0814—Preventing re-use

Definitions

  • the invention relates to a surgical instrument, in particular to a linear suture cutting device with a secondary insurance mechanism, belonging to the technical field of medical instruments.
  • Surgical linear suture cutting devices are widely used for wound suturing, internal tissue suturing and cutting. Since the development of surgery, it has become more and more inclined to minimally invasive surgery. Broadly speaking, surgery that reduces trauma is called minimally invasive surgery; in a narrow sense, minimally invasive surgery refers to surgery performed under endoscopy. Surgery performed under endoscope generally requires only a few small holes in the patient's body, and the resected, sutured tissue and auxiliary instruments are inserted into the patient from the small hole for surgery. Minimally invasive surgery brings little trauma to the patient, and the patient can recover in a short period of time, so minimally invasive surgery has received more and more attention.
  • US Patent No. 7,753,246 discloses a linear suture cutting device for minimally invasive surgery, comprising an instrument body, the instrument body comprising a housing and a firing handle pivotally disposed on the housing, the housing having a A relatively moving firing ram that pushes the nail head assembly at the front end of the housing for stitching and cutting.
  • the nail head assembly includes a staple cartridge holder and an anvil pivotally coupled to the staple cartridge holder.
  • the staple cartridge frame is detachably provided with a staple cartridge, and the staple cartridge is provided with a set of nail holes provided with push nails and staples, generally 4 rows or 6 rows of nail holes.
  • the anvil is provided with a nail forming groove at a position opposite to the nailing hole.
  • the nail head assembly further includes a pusher bar movably disposed in the socket of the nail head assembly and coupled to the firing ram, the distal end of the pusher bar fixing an I-shaped cutter, the work
  • the font cutter closes the staple cartridge and the anvil during the advancement process.
  • the distal end of the cutter is provided with a cutting edge that cuts tissue between the staple cartridge and the anvil during advancement.
  • the I-shaped cutter has a firing block on both sides of the cutting edge.
  • the I-shaped cutter drives the firing block to push the pushing nail piece out of the nail housing in turn, and then pushes the nail piece.
  • the staples are pushed out of the staple cartridge and bound to the tissue.
  • the instrument needs to be first reset, and then the staple cartridge is replaced, so that the linear suture cutting device can perform the next suture cutting operation.
  • U.S. Patent No. 5,485,947 discloses two secondary insurance mechanisms.
  • the magazine is provided with a sliding slot, and an elastic piece is slidably disposed in the sliding slot.
  • the elastic piece protrudes outside the sliding groove and pushes the pushing bar upward, and the notch at the proximal end of the pushing bar is separated from the protrusion on the staple cartridge, thereby ensuring that the pushing bar can be Was promoted.
  • the pusher bar When the pusher bar is moved distally, the pusher bar pushes the elastic piece into the chute, and the height of the pusher bar is lowered.
  • the principle of the second mechanism is similar to that of the first mechanism in that a pivot member is used instead of the elastic piece.
  • the pivot member lifts the pusher bar so that the notch on the pusher bar avoids the protrusion on the staple cartridge.
  • the pivot member is turned over, so that the height of the pusher bar is lowered, and the protrusion is just caught in the notch of the pusher bar, so that the pusher bar cannot be moved again, and The effect of sub-insurance.
  • a linear suture cutting device comprises: a body; a staple cartridge frame disposed at a distal end of the body; the staple cartridge frame is detachably provided with a staple cartridge, and the staple cartridge is provided with a plurality of internal components a nailing hole having a pusher piece and a staple, a firing block for pushing the pusher piece is disposed in the sliding groove of the staple cartridge; an anvil connected to the staple cartridge frame; a connecting tube connecting the body and the cartridge holder, wherein the nozzle is movably disposed with a pusher bar and a cutter disposed at a distal end of the pusher bar, the pusher bar pushing the firing block to move;
  • the cutter is pivotally provided with a safety block, and an elastic member is disposed between the safety block and the cutter.
  • the elastic member drives the distal end of the safety block to the staple cartridge without being subjected to an external force.
  • the bottom wall of the frame is inclined, the safety block is provided with at least one shoulder, the shoulder is protruded from the end surface of the safety block; and the magazine frame is provided with a boss that fits the shoulder; The boss is located in the moving direction of the shoulder of the inclined safety block.
  • the distal end of the safety block is a wedge surface, and when the cutter moves, the wedge surface is subjected to the force of the firing block to pivot the safety block.
  • the safety block is pivotally disposed on the cutter by a pin, and the elastic member is a torsion spring, and the torsion spring is wound around the pin.
  • the elastic member is a elastic piece disposed between the safety block and the cutter.
  • the safety block is provided with two shoulders respectively protruding from the two end faces of the safety block.
  • a linear suture cutting device comprising:
  • a staple cartridge frame disposed at a distal end of the body;
  • the staple cartridge frame is detachably provided with a staple cartridge, and the staple cartridge is provided with a plurality of nailing holes provided with a pusher piece and a staple a firing block for pushing the pusher piece is disposed in a sliding slot of the staple cartridge;
  • An anvil pivotally coupled to the staple cartridge frame
  • nozzle for connecting the body and the magazine holder, wherein the nozzle is movably disposed with a pusher bar and a cutter disposed at a distal end of the pusher bar;
  • the at least one shoulder of the cutter is provided with a safety block, and the safety block is provided with at least one shoulder, and the shoulder protrudes from an end surface of the safety block;
  • the magazine frame is provided with a boss that cooperates with the shoulder;
  • the shoulder and the bottom wall of the cartridge holder always maintain a first distance
  • the distance of the shoulder from the bottom wall of the cartridge holder during movement is increased from the first distance to a second distance, the first The distance is less than the thickness of the boss, and the second distance is greater than the thickness of the boss.
  • an elastic member is disposed between the safety block and the cutter, and the elastic member drives the distal end of the safety block to tilt toward the bottom wall of the magazine holder without being subjected to an external force.
  • the distal end of the safety block is a wedge surface, and when the cutter moves, the wedge surface is subjected to the force of the firing block to pivot the safety block.
  • the safety block is provided with two shoulders respectively protruding from the two end faces of the safety block.
  • the safety block is pivotally disposed on the cutter by a pin, and the elastic member is a torsion spring, and the torsion spring is wound around the pin.
  • the elastic member is a elastic piece disposed between the safety block and the cutter.
  • the beneficial effects of the invention are mainly embodied in: effectively preventing the doctor from performing the next operation without replacing the fired staple cartridge, avoiding the occurrence of a medical accident, and having a simple and effective structure.
  • Figure 1 is a schematic illustration of a staple cartridge holder disposed in a nozzle in accordance with a preferred embodiment of the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • Figure 3 is an enlarged view of a portion A of Figure 2.
  • Figure 4 is a cross-sectional view taken along line B-B of Figure 1.
  • Figure 5 is an enlarged view of a portion B of Figure 4.
  • Figure 6 is a perspective view of a staple cartridge holder disposed in a nozzle in accordance with a preferred embodiment of the present invention.
  • Figure 7 is an enlarged view of a portion C of Figure 6.
  • Figure 8 is a front elevational view of a nail head assembly in accordance with a preferred embodiment of the present invention, with the staple cartridge not being installed for the first time.
  • Figure 9 is an enlarged view of a portion D in Figure 8.
  • Figure 10 is a front elevational view of the nail head assembly of the preferred embodiment of the present invention, with the staple cartridge being mounted and the pusher bar being pushed.
  • Figure 11 is an enlarged view of a portion E in Figure 10.
  • Figure 12 is a front elevational view of a nail head assembly in accordance with a preferred embodiment of the present invention, in which case the pusher bar is continuously urged to release the fuse.
  • Figure 13 is an enlarged view of a portion F of Figure 12.
  • Figure 14 is a front elevational view of the nail head assembly of the preferred embodiment of the present invention, with the firing completed and secondary insurance.
  • nail warehouse frame 11, boss; 2, nail anvil; 3, nail warehouse; 4, take over; 5, firing block; 6, push knife; 7, cutting knife; 8, insurance block; Shoulder; 82, wedge face; 9, pin shaft; 10, elastic member.
  • the present invention discloses a linear suture cutting device for minimally invasive surgery, as shown in Figures 1 to 5, consistent with the prior art, comprising: a housing, a socket 4 at the distal end of the housing.
  • the distal end of the nozzle 4 is a nail head assembly, comprising: a staple cartridge holder 1 and an anvil 2 pivotally connected to the magazine holder 1.
  • the staple cartridge frame 1 is detachably provided with a staple cartridge 3, and the staple cartridge 3 is provided with a set of nailing holes provided with a pusher piece and a staple; and a firing block for pushing the pusher piece 5 is disposed in the chute of the staple cartridge 3.
  • a pusher bar 6 is movably disposed in the connecting tube 4; the distal end of the pusher bar 6 is fixed with a knife 7; the cutter 7 is provided with a bump on the upper and lower sides, and has an I-shaped shape.
  • the cutter 7 first compresses the tissue to make the expanded tissue thin and uniform during the advancement process, thereby further closing the staple cartridge 3 and the anvil 2; the distal end of the I-shaped cutter 7 is provided with a cutting edge,
  • the pusher bar 6 pushes the cutter 7 to cut the tissue between the staple cartridge 3 and the anvil 2 during advancement, and the pusher bar 6 pushes the firing block 5 to push the nail during the advancement process.
  • the sheets are sequentially pushed out of the staple cartridge 3, and the pusher tabs push the staples out of the staple cartridge 3 and fit on the tissue.
  • the utility model is characterized in that: the nail cartridge frame 1 is provided with a safety projection 11; the cutter 7 is pivotally provided with a safety block 8 , and a gap between the safety block 8 and the cutter 7 is provided.
  • the elastic member 10 urges the safety block 8 to tilt when it is not subjected to an external force, and a clockwise inclination occurs in FIG.
  • the safety block 8 is provided with two shoulders 81 respectively protruding from the two end faces of the safety block 8.
  • the boss 11 is located in the moving direction of the shoulder 81 of the inclined safety block 8, so that the shoulder 81 and the boss 11 Interfere with each other and play an insurance role.
  • a shoulder 81 is provided on either end face of the safety block 8, as long as it interferes with the boss 11, it can also serve as an insurance.
  • the safety block 8 is pivotally disposed on the cutter 7 via a pin 9, and the elastic member 10 can be a torsion spring, and the torsion spring is wound around the pin 9.
  • the elastic member 10 can also be a spring piece disposed between the safety block 8 and the cutter 7.
  • the pusher bar 6 pushes the cutter 7 to move, since the safety block 8 is subjected to the force of the elastic member 10. While the cutter 7 is inclined, the shoulder 81 is resisted by the boss 11, that is, the boss 11 is disposed on the forward path of the shoulder 81, so that the safety block 8 cannot move linearly to the distal end. Further, the pusher bar 6 cannot be moved.
  • the preferred embodiment of the invention is in an insurance position.
  • the distal end of the safety block 8 is a wedge-shaped surface 82 that is close to the firing block 5 during the linear movement of the safety block 8 toward the distal end. .
  • the firing block 5 will be located at the distal end of the staple cartridge 3 without resetting, pulling back the pusher bar, when the cutter is separated from the firing block,
  • the elastic member 10 in turn drives the safety block 8 to tilt about the pin 9.
  • the shoulder 81 on the safety block 8 is once again resisted by the boss 11, and only when a new staple cartridge is replaced can the safety position be released, preventing the nail cartridge from being replaced. Fire again.
  • the present invention has various embodiments, and all technical solutions formed by equivalent transformation or equivalent transformation are within the scope of the present invention.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract

一种直线缝合切割装置包括：本体；设置在钉仓架（1）上的钉仓（3），与钉仓架（1）枢轴连接的钉砧（2），一推刀杆（6）推动切刀（7）和击发块（5）移动；所述钉仓架（1）上设有一起保险作用的凸台（11）；所述切刀（7）上枢轴设有一保险块（8），所述保险块（8）与切刀（7）之间设有一弹性件（10），在不受外力作用下，所述弹性件（10）驱使所述保险块（8）倾斜，所述保险块（8）上设有至少一个凸肩（81），所述凸肩（81）凸设于所述保险块（8）的端面上；当所述推刀杆（6）推动所述切刀（7）移动时，所述凸台（11）位于所述倾斜的保险块（8）的凸肩（81）的移动方向上，使所述凸肩（81）被所述凸台（11）所抵挡。该切割装置能防止医生在未更换已击发的钉仓（3）的情况下进行下一次手术，避免医疗事故的产生，并且结构简单有效。

Description

一种直线缝合切割装置
本申请要求了申请日为2012年12月18日，申请号为201210595221.9，发明名称为“一种直线缝合切割装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
【技术领域】
本发明涉及一种手术用器械，尤其是一种具有二次保险机构的直线缝合切割装置，属于医疗器械技术领域。
【背景技术】
外科手术用直线缝合切割装置被广泛用于伤口缝合、内部组织缝合与切割。外科手术发展至今，已经越来越倾向于微创手术。广义来讲，能够减少创伤的手术都称为微创手术；狭义来讲，微创手术是指在内窥镜下进行的手术。内窥镜下进行的手术一般只需要在病人的身体上开几个小孔，将切除、缝合组织及辅助的器械从小孔中伸入病人体内进行手术。微创手术给病人带来的创伤小，病人可以在很短的时间内恢复，因此微创手术越来越受到人们的重视。
美国专利US7753246揭示了一种用于微创手术的直线缝合切割装置，包括一器械本体，所述器械本体包括壳体及一枢轴设于壳体上的击发把手，该壳体内设有一个可相对移动的击发顶杆，所述击发顶杆能推动位于壳体前端的钉头组件进行缝合和切除。具体的，所述钉头组件包括一钉仓架，及一与钉仓架枢轴连接的钉砧。所述钉仓架上可拆卸地设有钉仓，钉仓上设有一组内设有推钉片、吻合钉的置钉孔，一般为4排或6排的置钉孔。所述钉砧在与所述置钉孔相对的位置上设有钉成型槽。所述钉头组件还包括一个可移动地设置在钉头组件的接管内的、与击发顶杆配接的推刀杆，所述推刀杆的远端固定一工字型切刀，该工字型切刀在前进的过程中将钉仓和钉砧闭合。所述切刀的远端中心设有刀刃，其在前进的过程中将位于钉仓和钉砧间的组织切断。所述工字型切刀的刀刃两侧设有击发块，在工字型切刀前进的过程中，工字型切刀驱动击发块将推钉片依次推出于钉仓外，进而推钉片将吻合钉推出于钉仓外并订合在组织上。现有技术中，医生完成上述的缝切动作后，首先需要将器械复位，继而更换钉仓，以便直线缝合切割装置进行下一次的缝切手术。
但是由于一些粗心的医生或者经验不足的医生，会在未更换已击发的钉仓的情况下进行下一次的缝切手术，这样会导致医疗事故的产生，即进行了切除却没有缝合。为了防止此类事故的发生，现有技术提出了二次保险防二次击发的理论，即在未更换已击发的钉仓的情况下，击发把手不能被按动。这样，从根本上防止了由于医生误操作而产生的医疗事故。
美国专利US5485947揭示了两种二次保险机构。第一种机构中，钉仓上设有一个滑槽，该滑槽内可滑动地设有一个弹性片。初始状态时，该弹性片伸出于所述滑槽外并将推刀杆向上顶起，此时位于推刀杆近端的缺口与钉仓上的突起相互分离，确保所述推刀杆可以被推动。当推刀杆向远端移动时，所述推刀杆将弹性片推入至所述滑槽内，该推刀杆的高度下降。当将所述推刀杆复位后，所述突起刚好被卡在推刀杆的缺口内，使该推刀杆无法再次移动，起到了二次保险的效果。第二种机构的原理与第一种机构类似，将一枢轴件来代替弹性片。初始状态时，枢轴件将推刀杆抬起，使推刀杆上的缺口避开钉仓上的突起。当将所述推刀杆复位后，枢轴件翻转，使推刀杆的高度下降，所述突起刚好被卡在推刀杆的缺口内，使所述推刀杆无法再次移动，起到了二次保险的效果。
现有技术中，由于涉及的零部件非常小，且均装配于钉仓内，导致直线缝合切割装置生产和装配困难。
【发明内容】
本发明的目的：提出一种具有简单结构的二次保险机构的直线缝合切割装置。
本发明的目的，可通过以下技术方案得以实现：
一种直线缝合切割装置，包括：一本体；一设置于所述本体远端的钉仓架；所述钉仓架上可拆卸地设有钉仓，所述钉仓上设有若干个内设有推钉片、吻合钉的置钉孔，用于推动所述推钉片的击发块设置于所述钉仓的滑槽内；一与所述钉仓架枢轴连接的钉砧；一用于连接所述本体和钉仓架的接管，所述接管内可移动地设置有一推刀杆及置于所述推刀杆远端的切刀，所述推刀杆推动所述击发块移动；所述切刀上枢轴设有一保险块，所述保险块与切刀之间设有一弹性件，在不受外力状态下，所述弹性件驱使所述保险块的远端向所述钉仓架的底壁倾斜，所述保险块上设有至少一个凸肩，所述凸肩凸设于所述保险块的端面上；所述钉仓架上设有一配合所述凸肩的凸台；所述凸台位于所述倾斜的保险块的凸肩的移动方向上。
优选的，所述保险块的远端为一楔形面，所述切刀移动时，楔形面受到所述击发块的作用力继而使所述保险块枢轴转动。
优选的，所述保险块通过一销轴枢轴设置在切刀上，所述弹性件为扭簧，所述扭簧绕接于所述销轴上。
优选的，所述弹性件为设置在所述保险块和切刀之间的弹片。
优选的，所述保险块上设有两个凸肩，分别凸设于所述保险块的两个端面上。
本发明的目的，也通过以下技术方案得以实现：
一种直线缝合切割装置，包括：
一本体；
一设置于所述本体远端的钉仓架；所述钉仓架上可拆卸地设有钉仓，所述钉仓上设有若干个内设有推钉片、吻合钉的置钉孔，用于推动所述推钉片的击发块设置于所述钉仓的滑槽内；
一与所述钉仓架枢轴连接的钉砧；
一用于连接所述本体和钉仓架的接管，所述接管内可移动地设置有一推刀杆及置于所述推刀杆远端的切刀；
所述切刀上枢轴设有一保险块，所述保险块上设有至少一个凸肩，所述凸肩凸设于所述保险块的端面上；
所述钉仓架上设有一配合所述凸肩的凸台；
当所述钉仓架上未装所述钉仓时，所述凸肩与所述钉仓架的底壁始终保持第一距离；
当所述钉仓架上设有所述钉仓时，所述凸肩在运动过程中与所述钉仓架的底壁的距离从所述第一距离增加至第二距离，所述第一距离小于所述凸台的厚度，所述第二距离大于所述凸台的厚度。
优选的，所述保险块与切刀之间设有一弹性件，在不受外力状态下，所述弹性件驱使所述保险块的远端向所述钉仓架的底壁倾斜。
优选的，所述保险块的远端为一楔形面，所述切刀移动时，楔形面受到所述击发块的作用力继而使所述保险块枢轴转动。
优选的，所述保险块上设有两个凸肩，分别凸设于所述保险块的两个端面上。
优选的，所述保险块通过一销轴枢轴设置在切刀上，所述弹性件为扭簧，所述扭簧绕接于所述销轴上。
优选的，所述弹性件为设置在所述保险块和切刀之间的弹片。
本发明的有益效果主要体现在：有效防止医生在未更换已击发的钉仓的情况下进行下一次的手术，避免医疗事故的产生，结构简单有效。
【附图说明】
图1是本发明优选实施例的设在接管中的钉仓架的示意图。
图2是图1中沿A-A的剖视图。
图3是图2中A部分的放大图。
图4是图1中沿B-B的剖视图。
图5是图4中B部分的放大图。
图6是本发明优选实施例的设在接管中的钉仓架的立体示意图。
图7是图6中C部分的放大图。
图8是本发明优选实施例的钉头组件的主视图，此时未安装钉仓，首次保险。
图9是图8中D部分的放大图。
图10是本发明优选实施例的钉头组件的主视图，此时安装钉仓，并推动推刀杆。
图11是图10中E部分的放大图。
图12是本发明优选实施例的钉头组件的主视图，此时持续推动推刀杆，解除保险。
图13是图12中F部分的放大图。
图14是本发明优选实施例的钉头组件的主视图，此时击发完毕，二次保险。
其中：1、钉仓架；11、凸台；2、钉砧；3、钉仓；4、接管；5、击发块；6、推刀杆；7、切刀；8、保险块；81、凸肩；82、楔形面；9、销轴；10、弹性件。
【具体实施方式】
实施例1
本发明揭示了一种用于微创手术的直线缝合切割装置，如图1至图5所示，与现有技术一致，包括：一壳体，位于壳体远端的接管4。所述接管4的远端为钉头组件，包括：一钉仓架1及一与所述钉仓架1枢轴连接的钉砧2。所述钉仓架1上可拆卸地设有钉仓3，所述钉仓3上设有一组内设有推钉片、吻合钉的置钉孔；用于推动所述推钉片的击发块5设置于所述钉仓3的滑槽内。
所述接管4内可移动地设置有一推刀杆6；所述推刀杆6的远端固定一切刀7，所述切刀7上下设有凸块，呈工字型，所述工字型切刀7在前进的过程中先压迫组织使膨胀的组织变薄和均匀，从而进一步将钉仓3和钉砧2闭合；所述工字型切刀7的远端中心设有刀刃，所述推刀杆6推动切刀7在前进的过程中该刀刃将位于钉仓3和钉砧2间的组织切断，并且所述推刀杆6在前进的过程中推动所述击发块5将推钉片依次推出于钉仓3外，进而推钉片将吻合钉推出于钉仓3外并订合在组织上。
本发明的特点在于：所述钉仓架1上设有一起保险作用的凸台11；所述切刀7上枢轴设有一保险块8，所述保险块8与切刀7之间设有一弹性件10，在不受外力状态下，所述弹性件10驱使所述保险块8倾斜，图2中为发生顺时针倾斜。
本优选实施例中，所述保险块8上设有两个凸肩81，分别凸设于所述保险块8的两个端面上。当所述推刀杆6推动所述切刀7移动时，所述凸台11位于所述倾斜的保险块8的凸肩81的移动方向上，使所述凸肩81与所述凸台11相干涉，进而起到保险作用。当然，如果在保险块8的任一个端面上设有一个凸肩81，只要其与所述凸台11相干涉，同样可以起到保险作用。
所述保险块8通过一销轴9枢轴设置在切刀7上，所述弹性件10可以为扭簧，所述扭簧绕接于所述销轴9上。当然，所述弹性件10也可为设置在所述保险块8和切刀7之间的弹片。
下面简单介绍一些本发明的工作过程。
如图6至9所示，当本发明优选实施例的钉头组件未安装钉仓3时，所述推刀杆6推动所述切刀7移动，由于保险块8受到弹性件10的作用力而相对切刀7倾斜，使其凸肩81被所述凸台11所抵挡，即所述凸台11设置在凸肩81的前进路线上，使所述保险块8不能沿直线向远端移动，进而使推刀杆6也不能移动。这样，本发明优选实施例处在一个保险位置。
当装上钉仓3后，如图10和图11所示，所述保险块8的远端为一楔形面82在所述保险块8沿直线向远端移动的过程中与击发块5贴近。
推刀杆6进一步地推动所述切刀7移动时，如图12和图13所示，楔形面82受到所述击发块5的阻力作用继而使所述保险块8克服弹性件10的弹力而发生枢轴转动，图中为逆时针转动。这时，凸肩81的位置相对钉仓架1抬高，即其远离所述钉仓架1上的凸台11。当击发块5与保险块8完全贴紧时，凸肩81在其移动的过程中则不会与凸台11干涉，即凸台11不处在凸肩81的移动路线上了。这时保险解除，可以进行击发本缝合切割装置。
如图14所示，当本发明优选实施例击发完毕后，所述击发块5会位于所述钉仓3的远端而不会复位，回拉推刀杆，当切刀脱离击发块时，所述弹性件10又会驱使所述保险块8绕所述销轴9进行倾斜。当所述推刀杆6复位后，保险块8上的凸肩81再一次被所述凸台11所抵挡，只有更换新的钉仓才能解除该保险位置，防止在未更换钉仓的情况下再次进行击发。
本发明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。
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。

Claims (11)

  1. 一种直线缝合切割装置，包括：
    一本体；
    一设置于所述本体远端的钉仓架（1）；所述钉仓架（1）上可拆卸地设有钉仓（3），所述钉仓（3）上设有若干个内设有推钉片、吻合钉的置钉孔，用于推动所述推钉片的击发块（5）设置于所述钉仓（3）的滑槽内；
    一与所述钉仓架（1）枢轴连接的钉砧（2）；
    一用于连接所述本体和钉仓架的接管（4），所述接管（4）内可移动地设置有一推刀杆（6）及置于所述推刀杆（6）远端的切刀（7），所述推刀杆（6）推动所述击发块（5）移动；
    其特征在于：
    所述切刀（7）上枢轴设有一保险块（8），所述保险块（8）与切刀（7）之间设有一弹性件（10），在不受外力状态下，所述弹性件（10）驱使所述保险块（8）的远端向所述钉仓架（1）的底壁倾斜，所述保险块（8）上设有至少一个凸肩（81），所述凸肩凸设于所述保险块（8）的端面上；
    所述钉仓架（1）上设有一配合所述凸肩（81）的凸台（11）；所述凸台（11）位于所述凸肩（81）的移动方向上。
  2. 根据权利要求1所述的直线缝合切割装置，其特征在于：所述保险块（8）的远端为一楔形面（82），所述切刀（7）移动时，楔形面（82）受到所述击发块（5）的作用力继而使所述保险块（8）枢轴转动。
  3. 根据权利要求1所述的直线缝合切割装置，其特征在于：所述保险块（8）通过一销轴（9）枢轴设置在切刀（7）上，所述弹性件（10）为扭簧，所述扭簧绕接于所述销轴（9）上。
  4. 根据权利要求1所述的直线缝合切割装置，其特征在于：所述弹性件（10）为设置在所述保险块（8）和切刀（7）之间的弹片。
  5. 根据权利要求1所述的直线缝合切割装置，其特征在于：所述保险块（8）上设有两个凸肩（81），分别凸设于所述保险块（8）的两个端面上。
  6. 一种直线缝合切割装置，包括：
    一本体；
    一设置于所述本体远端的钉仓架（1）；所述钉仓架（1）上可拆卸地设有钉仓（3），所述钉仓（3）上设有若干个内设有推钉片、吻合钉的置钉孔，用于推动所述推钉片的击发块（5）设置于所述钉仓（3）的滑槽内；
    一与所述钉仓架（1）枢轴连接的钉砧（2）；
    一用于连接所述本体和钉仓架的接管（4），所述接管（4）内可移动地设置有一推刀杆（6）及置于所述推刀杆（6）远端的切刀（7）；其特征在于，
    所述切刀（7）上枢轴设有一保险块（8），所述保险块（8）上设有至少一个凸肩（81），所述凸肩凸设于所述保险块（8）的端面上；
    所述钉仓架（1）上设有一配合所述凸肩（81）的凸台（11）；
    当所述钉仓架（1）上未装所述钉仓时，所述凸肩（81）与所述钉仓架（1）的底壁始终保持第一距离；
    当所述钉仓架（1）上设有所述钉仓时，所述凸肩（81）在运动过程中与所述钉仓架（1）的底壁的距离从所述第一距离增加至第二距离，所述第一距离小于所述凸台的厚度，所述第二距离大于所述凸台的厚度。
  7. 根据权利要求6所述的直线缝合切割装置，其特征在于：所述保险块（8）与切刀（7）之间设有一弹性件（10），在不受外力状态下，所述弹性件（10）驱使所述保险块（8）的远端向所述钉仓架（1）的底壁倾斜。
  8. 根据权利要求6所述的直线缝合切割装置，其特征在于：所述保险块（8）的远端为一楔形面（82），所述切刀（7）移动时，楔形面（82）受到所述击发块（5）的作用力继而使所述保险块（8）枢轴转动。
  9. 根据权利要求6所述的直线缝合切割装置，其特征在于：所述保险块（8）上设有两个凸肩（81），分别凸设于所述保险块（8）的两个端面上。
  10. 根据权利要求7所述的直线缝合切割装置，其特征在于：所述保险块（8）通过一销轴（9）枢轴设置在切刀（7）上，所述弹性件（10）为扭簧，所述扭簧绕接于所述销轴（9）上。
  11. 根据权利要求7所述的直线缝合切割装置，其特征在于：所述弹性件（10）为设置在所述保险块（8）和切刀（7）之间的弹片。
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CN113616260A (zh) * 2021-08-24 2021-11-09 常州安康医疗器械有限公司 一种便于安装拆卸的吻合器用吻合钉座
CN114081559A (zh) * 2021-11-24 2022-02-25 苏州优脉瑞医疗科技有限公司 一种一次成型直线切割吻合器
CN114081559B (zh) * 2021-11-24 2024-04-26 苏州优脉瑞医疗科技有限公司 一种一次成型直线切割吻合器
CN115054302A (zh) * 2022-06-23 2022-09-16 常州安康医疗器械有限公司 腔镜切割吻合器组件
CN115054302B (zh) * 2022-06-23 2023-11-03 常州安康医疗器械有限公司 腔镜切割吻合器组件

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