WO2022141812A1 - 具有分开式推钉片的钉仓组件及吻合器 - Google Patents

具有分开式推钉片的钉仓组件及吻合器 Download PDF

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Publication number
WO2022141812A1
WO2022141812A1 PCT/CN2021/081411 CN2021081411W WO2022141812A1 WO 2022141812 A1 WO2022141812 A1 WO 2022141812A1 CN 2021081411 W CN2021081411 W CN 2021081411W WO 2022141812 A1 WO2022141812 A1 WO 2022141812A1
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WIPO (PCT)
Prior art keywords
staple
nail
pushing
staples
row
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PCT/CN2021/081411
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English (en)
French (fr)
Inventor
聂小钧
浦晓冬
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宝玛医疗科技(无锡)有限公司
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Publication of WO2022141812A1 publication Critical patent/WO2022141812A1/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
    • A61B17/068—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
    • A61B2017/07235—Stapler heads containing different staples, e.g. staples of different shapes, sizes or materials
    • 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
    • A61B2017/07242—Stapler heads achieving different staple heights during the same shot, e.g. using an anvil anvil having different heights or staples of different sizes
    • 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
    • A61B2017/07271—Stapler heads characterised by its cartridge

Definitions

  • the present invention relates to the technical field of staplers, in particular to a staple cartridge assembly with separate staple pushing pieces and a stapler.
  • the stapler uses titanium nails to perform anastomosis on the tissue.
  • the suture is fast, the operation is simple, and there are few side effects and surgical complications. It is very favored and respected by clinical surgeons at home and abroad.
  • the quality of the staple forming during the use of the stapler directly affects the effect of suturing the tissue.
  • the existing stapler may cause the staple to collapse during the suturing process because the sutured tissue is too thick, resulting in poor tissue suturing effect.
  • the tissue fluid is not easily discharged during the tissue anastomosis, which will also affect the effect of the staple anastomosis.
  • the main technical problem to be solved by the present invention is to provide a staple cartridge assembly and stapler with separate staple pushing pieces, which can disperse the pressure required in the staple forming process and reduce the requirements for the anastomotic force of the instrument.
  • the outer surface is gradually increased, which can ensure the anastomosis and cutting effect while ensuring that the nail will not collapse due to the excessive thickness of the tissue, preventing the disadvantage of poor tissue suturing effect.
  • a technical solution adopted by the present invention is to provide a staple cartridge assembly with a separate staple pushing piece, including:
  • the staple cartridge main body has a first surface facing the tissue to be sutured, the opposite surface of the first surface is a second surface, the first surface has a accommodating groove for accommodating staples, and the outer edge of the accommodating groove is provided with a guiding groove;
  • the staple cartridge bracket has an accommodating cavity facing the second surface of the staple cartridge main body, and the staple cartridge main body is kept in the accommodating cavity for position limit fixing;
  • the nail pushing piece includes an external pushing nail piece, a left nail pushing piece and a right nail pushing piece, which are separately arranged.
  • the nail pushing piece is fired by the nail pusher and ejects the staples in the accommodating groove to realize tissue anastomosis.
  • the staple includes a staple span, a staple leg and a staple head, the staple legs extend obliquely upward from both ends of the staple span, and the staple head extends vertically along the vertical direction from the top of the staple leg. direction extends upwards.
  • the nail head is formed as a pre-bent section, the main body of the nail head is straight, and the top of the nail head is pointed.
  • the guide grooves are evenly distributed on the outer edge of the first surface of the staple cartridge main body, so that the side edges of the staple cartridge main body form a convex-concave arrangement structure.
  • the accommodating grooves on the first surface are distributed in rows along the length direction, and a first row of accommodating grooves, a second row of accommodating grooves and a third row of accommodating grooves are formed in sequence from the inside to the outside, wherein the first row of accommodating grooves
  • the two rows of accommodating grooves are longitudinally staggered relative to the first row of accommodating grooves, and the third row of accommodating grooves and the first row of accommodating grooves are arranged in parallel and symmetrically along the longitudinal direction.
  • each row of accommodating grooves includes a plurality of single-unit accommodating grooves distributed at intervals in the longitudinal direction, the shape and size of the single-unit accommodating grooves are matched with the nail-pushing sheets, and the single-unit accommodating grooves include accommodating nail-pushing sheets.
  • the first row of accommodation slots, the second row of accommodation slots and the third row of accommodation slots contain corresponding first staples, second staples and third staples, the first staples, the second staples and the third staples
  • the height gradually increases from the inside to the outside.
  • the external push nail piece is provided with an external push nail tooth piece, and both the left push nail piece and the right nail push piece have two push nail tooth pieces, which are the first nail push tooth piece and the second nail push tooth piece respectively.
  • Two push nail teeth, a transverse reinforcing rib is arranged between the first push nail teeth and the second push nail teeth, the heights of the outer push nail teeth, the first push nail teeth and the second nail push teeth are respectively the same as The heights of the third staple, the second staple, and the first staple are set correspondingly.
  • the top surfaces of the outer pusher teeth, the first pusher teeth and the second pusher teeth have a staple seat for pushing staples, and both ends of the staple seat are formed into stepped recesses
  • the notches can support the staple straddles of the staples and the junctions of the staple straddles with the staple legs so that the force received by the pusher teeth can be fully transferred to the staples.
  • the nail pusher when the nail pusher is fired by the nail pusher, it can move from the proximal end to the distal end along the first surface of the staple cartridge body, and the nail pusher tooth is along the vertical direction of the accommodating groove. The up and down movement is performed, and the staples in the corresponding receiving groove are moved up and down in the direction facing the tissue.
  • a technical solution adopted by the present invention is to provide a stapler, including the above-mentioned staple cartridge assembly with a separate staple-pushing sheet, when the stapler is fired, the staple height is outward from the cutting opening. gradually increased.
  • the staple cartridge assembly and the stapler with separate staple pushing pieces of the present invention can disperse the pressure required for the staple forming process, reduce the requirements for the anastomotic force of the instruments, and the staple forming height gradually increases from the cutting opening outwards. , which can ensure the anastomosis and cutting effect, and at the same time, ensure that the nail will not collapse due to excessive tissue thickness, and prevent the disadvantage of poor tissue suturing effect.
  • FIG. 1 is a schematic structural diagram of a preferred embodiment of a staple cartridge assembly with separate staple pushing pieces of the present invention
  • Fig. 2 is a structural schematic diagram of a preferred embodiment of the staple cartridge main body in the staple cartridge assembly with separate staple pushing pieces of the present invention
  • FIG. 3 is a front view of a preferred embodiment of the staple cartridge body in the staple cartridge assembly with separate staple pushing pieces of the present invention
  • Fig. 4 is a partial enlarged view of A in Fig. 3;
  • FIG. 5 is a cross-sectional view of a guide groove in the staple cartridge assembly with separate staple push pieces of the present invention
  • FIG. 6 is a schematic structural diagram of a preferred embodiment of an externally pushed nail piece in the staple cartridge assembly with a separate nail push piece of the present invention
  • FIG. 7 is a schematic structural diagram of a preferred embodiment of the left push nail piece in the staple cartridge assembly with separate nail push pieces of the present invention
  • FIG. 8 is a schematic structural diagram of a preferred embodiment of the right nail push piece in the staple cartridge assembly with separate nail push pieces of the present invention
  • FIG. 9 is a schematic structural diagram of a preferred embodiment of staples in the staple cartridge assembly with separate staple push pieces of the present invention.
  • the embodiments of the present invention include:
  • a staple cartridge assembly with separate staple push pieces including a staple cartridge body 100, a staple cartridge bracket 300 and a staple push piece 400, the staple cartridge main body 100 is arranged in the staple cartridge bracket 300 for limit fixation, and the staple push piece 400 ejects the staples 500 under the firing of the staple pusher 200 to achieve tissue anastomosis.
  • the staple cartridge body 100 has a first surface 110 facing the tissue to be stapled, the opposite surface of the first surface 110 is the second surface 120, the staple cartridge bracket 300 has a accommodating cavity 310 facing the second surface 120, the staple cartridge body 100 holds Limit fixing is performed inside the accommodating cavity 310 .
  • the first surface 110 of the staple cartridge body 100 has accommodating grooves for accommodating staples 500.
  • the accommodating grooves are distributed in rows along the length direction, and the first row of accommodating grooves 130, the second row of accommodating grooves 140, and the first row of accommodating grooves 130, the second row of accommodating grooves 140, and the first row of accommodating grooves 130 are formed in sequence from the inside to the outside.
  • the accommodating grooves 140 in the second row are longitudinally displaced relative to the accommodating grooves 130 in the first row, and the accommodating grooves 150 in the third row and the accommodating grooves 130 in the third row are symmetrically disposed in parallel and longitudinally.
  • the first row of accommodation slots 130 , the second row of accommodation slots 140 and the third row of accommodation slots 150 contain corresponding first staples 510 , second staples 520 and third staples 530 .
  • the heights of the staples 520 and the third staples 530 gradually increase from the inside to the outside.
  • the outer edge of the accommodating groove is provided with guide grooves 170 , and the guide grooves 170 are evenly distributed on the outer edge of the first surface 110 of the staple cartridge main body 100 , so that the sides of the staple cartridge main body 100 form a convex-concave arrangement structure.
  • the staple 500 includes a staple span portion 540 , a staple leg portion 550 and a staple head portion 560 , the staple leg portion 550 extends obliquely upward from both ends of the staple span portion 540 , and the staple head portion 560 extends along the top of the staple leg portion 550 along the The vertical direction extends upwards.
  • the staple head 560 faces the tissue that needs to be sutured and penetrates the tissue for suture.
  • the staple head 560 has a pre-bent shape, the top of the staple head 560 is pointed, and the main body of the staple head 560 is straight, which is convenient for titanium staples from It is smoother to suture the tissue in the staple cartridge, reducing the suture force.
  • the titanium staple enters the staple groove, it is easier to form a staple, which can form a better B-shape and ensure the suture effect.
  • the single-unit accommodating groove 160 includes a support table 161 for accommodating both sides of the nail push piece 400 and a support cavity 162 formed between the two support blocks 161 for accommodating the nail-pushing tooth piece.
  • the pieces 400 are matched so that the push nail pieces 400 are pressed into the receiving groove.
  • the staple pushing piece 400 includes an outer staple pushing piece 410, a left staple pushing piece 420 and a right staple pushing piece 430, which are separately arranged. Tissue anastomosis.
  • the heights of the toothed piece 460 , the outer push nail toothed piece 440 , the second push nail toothed piece 460 and the first nail push toothed piece 450 correspond to the heights of the third staple 530 , the second staple 520 and the first staple 510 respectively set up.
  • the single-tooth pusher on the outside and the left and right two-tooth pushers on the inside can disperse the pressure required for nail formation and reduce the requirements for the anastomotic force of the instrument.
  • a transverse reinforcing rib 470 is arranged between the first nail pushing tooth piece 450 and the second nail pushing tooth piece 460 , and the transverse reinforcing rib 440 spans between the first nail pushing tooth piece 450 and the second nail pushing tooth piece 460 , increasing the The strength of the joint surface is improved, and the overall stability of the left push nail piece 420 and the right nail push piece 430 is improved.
  • the top surfaces of the outer pusher teeth 440, the first pusher teeth 450 and the second pusher teeth 460 have a staple seat 480 for pushing staples, and both ends of the staple seat 480 are formed into stepped grooves 481 to support
  • the staple span portion 540 of the staple and the junction between the staple span portion 540 and the staple leg portion 550 enable the force received by the pusher teeth to be fully transmitted to the staple 500 to facilitate the forming effect of the staple 500 .
  • the nail pusher piece is fired by the nail pusher 200, and moves from the proximal end to the distal end along the first surface 110 of the staple cartridge body 100.
  • the nail pusher tooth piece moves up and down along the vertical direction of the accommodating groove, and moves the corresponding accommodating groove.
  • the inner staples 500 move up and down toward the direction of the tissue, and the staples in the corresponding receiving grooves are fired through the outer pusher teeth 440, the first pusher teeth 450, and the second pusher teeth 460, and the suture is sutured.
  • the staples 500 are ejected, so that the staple height of the staples is gradually increased from the incision to the outside, and tissue anastomosis is achieved.
  • a stapler includes the staple cartridge assembly with separate staple pushing pieces in Embodiment 1. When the stapler is fired, the staple height gradually increases outward from the cutting opening.
  • the working process of the stapler is:
  • the nail pusher 200 fires the nail pusher piece, and the nail pusher piece moves from the proximal end to the distal end along the first surface 110 of the staple cartridge body 100,
  • the external push nail teeth 440 , the second nail push teeth 460 and the first nail push teeth 450 will push the third row of the accommodating grooves 150 , the second row of the accommodating grooves 140 and the first row of the accommodating grooves 130 .
  • the staple 530, the second staple 520, and the first staple 510 move up and down toward the tissue,
  • the pointed tip of the staple head 560 moves toward the tissue to be sutured and penetrates the tissue, so that the pointed staple head 560 is bent toward the staple leg 550 and the staple span 540 to form a better B-shape, achieving Tissue fixation sutures.
  • the external single-tooth pusher and the inner left and right two-tooth pushers are used separately, which can disperse the pressure required for the nailing process and reduce the requirements for the anastomotic force of the instrument.
  • the height of the nailing increases gradually from the cutting opening to the outside. While ensuring the effect of anastomosis and cutting, it can ensure that the staples will not collapse due to excessive tissue thickness, and prevent the disadvantage of poor tissue suture effect.

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Abstract

一种具有分开式推钉片（400）的钉仓组件及吻合器，包括钉仓主体（100）、钉仓托架（300）和推钉片（400），钉仓主体（100）设置在钉仓托架（300）内进行限位固定，推钉片（400）采用分开式设置的外侧单齿推钉片（400）和内侧的左右二齿推钉片（400），推钉片（400）在推钉器（200）的击发下将缝合钉（500）弹出实现组织吻合，缝合钉（500）的成钉高度由切割口向外逐渐增高。通过上述方式，本具有分开式推钉片（400）的钉仓组件及吻合器能够分散成钉过程所需的压力，降低对器械吻合力的要求，成钉高度由切割口向外逐渐增高，能够在确保吻合切割效果的同时，确保钉不会因为组织过厚崩掉，防止组织缝合效果不好的缺点。

Description

具有分开式推钉片的钉仓组件及吻合器 技术领域
本发明涉及吻合器技术领域，特别是涉及一种具有分开式推钉片的钉仓组件及吻合器。
背景技术
吻合器利用钛钉对组织进行吻合，缝合快速，操作简便，很少有副作用和手术并发症，很受国内外临床外科医生的青睐和推崇。
吻合器使用过程中钉成型的质量直接影响缝合组织的效果，根据临床医生的反馈，现有的吻合器在缝合过程中会因为缝合组织过厚发生钉崩掉的现象，导致组织缝合效果不好，而且组织吻合过程中组织液不易排出，也会影响成钉吻合效果。
发明内容
本发明主要解决的技术问题是提供一种具有分开式推钉片的钉仓组件及吻合器，能够分散成钉过程所需的压力，降低对器械吻合力的要求，成钉高度由切割口向外逐渐增高，能够在确保吻合切割效果的同时，确保钉不会因为组织过厚崩掉，防止组织缝合效果不好的缺点。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种具有分开式推钉片的钉仓组件，包括：
钉仓主体，具有面向需要缝合组织的第一表面，第一表面的相对面为第二表面，第一表面上具有可容纳缝合钉的容纳槽，容纳槽的外侧边缘设置有导引凹槽；
钉仓托架，具有面向钉仓主体第二表面的容置腔，钉仓主体保持在容置腔 内部进行限位固定；
推钉片，包括分开设置的外推钉片、左推钉片和右推钉片，推钉片受到推钉器的击发将容纳槽内的缝合钉弹出，实现组织吻合。
在本发明一个较佳实施例中，缝合钉包括钉跨部、钉腿部和钉头部，钉腿部由钉跨部两端倾斜向上延伸，钉头部由钉腿部顶端沿着竖直方向向上延伸。
在本发明一个较佳实施例中，钉头部被形成为预折弯段，钉头部主体呈直线状，钉头部的顶端呈尖状。
在本发明一个较佳实施例中，导引凹槽均布在钉仓主体第一表面的外侧边缘，使钉仓主体的侧边形成凸凹排列结构。
在本发明一个较佳实施例中，第一表面的容纳槽沿着长度方向成排状分布，由内向外依次形成第一排容纳槽、第二排容纳槽和第三排容纳槽，其中第二排容纳槽相对于第一排容纳槽纵向错位设置，第三排容纳槽与第一排容纳槽沿纵向平行对称设置。
在本发明一个较佳实施例中，每一排容纳槽包括多个纵向间隔分布的单体容纳槽，单体容纳槽的形状大小与推钉片匹配，单体容纳槽包括可容纳推钉片两侧端的支撑台以及形成在两个支撑台之间可容纳推钉齿片的支撑腔，
第一排容纳槽、第二排容纳槽和第三排容纳槽内有对应的第一缝合钉、第二缝合钉和第三缝合钉，第一缝合钉、第二缝合钉和第三缝合钉的高度由内向外逐渐增高。
在本发明一个较佳实施例中，外推钉片上具有一个外推钉齿片，左推钉片和右推钉片上均具有两个推钉齿片，分别为第一推钉齿片和第二推钉齿片，第一推钉齿片和第二推钉齿片之间设有横向加强筋，外推钉齿片、第一推钉齿片 和第二推钉齿片的高度分别与第三缝合钉、第二缝合钉和第一缝合钉的高度对应设置。
在本发明一个较佳实施例中，外推钉齿片、第一推钉齿片和第二推钉齿片的顶表面具有推动缝合钉的钉座，钉座两端被形成为阶梯状凹槽口可支撑缝合钉的钉跨部以及钉跨部与钉腿部的接合处，使得推钉齿片接受到的作用力可全部传递至缝合钉。
在本发明一个较佳实施例中，推钉片受到推钉器的击发时可沿着钉仓本体的第一表面从近端向远端运动，推钉齿片沿着容纳槽的竖直方向进行上下运动，将对应容纳槽内的缝合钉朝着面向组织的方向进行上下运动。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种吻合器，包括上述的具有分开式推钉片的钉仓组件，当吻合器进行击发时，成钉高度由切割口向外逐渐增高。
本发明的有益效果是：本发明具有分开式推钉片的钉仓组件及吻合器能够分散成钉过程所需的压力，降低对器械吻合力的要求，成钉高度由切割口向外逐渐增高，能够在确保吻合切割效果的同时，确保钉不会因为组织过厚崩掉，防止组织缝合效果不好的缺点。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1是本发明的具有分开式推钉片的钉仓组件一较佳实施例的结构示意图；
图2是本发明的具有分开式推钉片的钉仓组件中钉仓主体一较佳实施例的 结构示意图；
图3是本发明的具有分开式推钉片的钉仓组件中钉仓主体一较佳实施例的主视图；
图4是图3中A的局部放大图；
图5是本发明的具有分开式推钉片的钉仓组件中导引凹槽的剖面图；
图6是本发明的具有分开式推钉片的钉仓组件中外推钉片一较佳实施例的结构示意图；
图7是本发明的具有分开式推钉片的钉仓组件中左推钉片一较佳实施例的结构示意图；
图8是本发明的具有分开式推钉片的钉仓组件中右推钉片一较佳实施例的结构示意图；
图9是本发明的具有分开式推钉片的钉仓组件中缝合钉一较佳实施例的结构示意图；
附图中各部件的标记如下：100、钉仓主体，110、第一表面，120、第二表面，130、第一排容纳槽，140、第二排容纳槽，150、第三排容纳槽，160、单体容纳槽，161、支撑台，162、支撑腔，170、导引凹槽，200、推钉器，300、钉仓托架，310、容置腔，400、推钉片，410、外推钉片，420、左推钉片，430、右推钉片，440、外推钉齿片，450、第一推钉齿片，460、第二推钉齿片，470、横向加强筋，480、钉座，481、阶梯状凹槽口，500、缝合钉，510、第一缝合钉，520、第二缝合钉，530、第三缝合钉，540、钉跨部，550、钉腿部，560、钉头部。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
请参阅图1至图9，本发明实施例包括：
实施例一
一种具有分开式推钉片的钉仓组件，包括钉仓主体100、钉仓托架300和推钉片400，钉仓主体100设置在钉仓托架300内进行限位固定，推钉片400在推钉器200的击发下将缝合钉500弹出，实现组织吻合。
钉仓主体100具有面向需要缝合组织的第一表面110，第一表面110的相对面为第二表面120，钉仓托架300具有面向第二表面120的容置腔310，钉仓主体100保持在容置腔310内部进行限位固定。
钉仓主体100的第一表面110具有可容纳缝合钉500的容纳槽，容纳槽沿着长度方向成排状分布，由内向外依次形成第一排容纳槽130、第二排容纳槽140和第三排容纳槽150，每一排容纳槽包括多个沿长度方向间隔分布的单体容纳槽160。
其中第二排容纳槽140相对于第一排容纳槽130纵向错位设置，第三排容纳槽150与第一排容纳槽130沿纵向平行对称设置。
第一排容纳槽130、第二排容纳槽140和第三排容纳槽150内有对应的第一缝合钉510、第二缝合钉520和第三缝合钉530，第一缝合钉510、第二缝合钉520和第三缝合钉530的高度由内向外逐渐增高。
容纳槽的外侧边缘设置有导引凹槽170，导引凹槽170均布在钉仓主体100第一表面110的外侧边缘，使钉仓主体100的侧边形成凸凹排列结构。当钉仓 组件安装入吻合器后，夹持组织时，能够增加组织的夹持效果，防止组织滑移，同时还能够更有效地导引组织内体液的排出，促进更好的成钉效果。
本发明中，缝合钉500包括钉跨部540、钉腿部550和钉头部560，钉腿部550由钉跨部540两端倾斜向上延伸，钉头部560由钉腿部550顶端沿着竖直方向向上延伸。
钉头部560朝着需要缝合的组织并穿透组织进行缝合，钉头部560增加了预折弯形状，钉头部560顶端呈尖状，钉头部560主体呈直线状，方便钛钉从钉仓内出来缝合组织时更加顺畅，减少缝合力，同时钛钉进入钉槽时更容易成钉，可以形成更好的B字型，确保缝合效果。
单体容纳槽160包括可容纳推钉片400两侧端的支撑台161以及形成在两个支撑台161之间可容纳推钉齿片的支撑腔162，单体容纳槽160的形状大小与推钉片400匹配，使得推钉片400压紧在容纳槽内。
本发明中，推钉片400包括分开设置的外推钉片410、左推钉片420和右推钉片430，推钉片400受到推钉器的击发将容纳槽内的缝合钉弹出，实现组织吻合。
外推钉片410上具有一个外推钉齿片440，左推钉片420和右推钉片430上均设置有两个推钉齿片，为第一推钉齿片450和第二推钉齿片460，外推钉齿片440、第二推钉齿片460和第一推钉齿片450的高度分别与第三缝合钉530、第二缝合钉520和第一缝合钉510的高度对应设置。
外侧单齿推钉片和内侧的左右二齿推钉片能够分散成钉所需的压力，降低对器械吻合力的要求。
第一推钉齿片450和第二推钉齿片460之间设有横向加强筋470，横向加强筋440跨接于第一推钉齿片450和第二推钉齿片460之间，增加了结合面的强 度，提高了左推钉片420和右推钉片430的整体稳定性。
外推钉齿片440、第一推钉齿片450和第二推钉齿片460的顶表面具有推动缝合钉的钉座480，钉座480两端被形成为阶梯状凹槽口481可支撑缝合钉的钉跨部540以及钉跨部540与钉腿部550的接合处，使得推钉齿片接受到的作用力可全部传递至缝合钉500，促进缝合钉500的成型效果。
推钉片受到推钉器200的击发，沿着钉仓本体100的第一表面110从近端向远端运动，推钉齿片沿着容纳槽的竖直方向进行上下运动，将对应容纳槽内的缝合钉500朝着面向组织的方向进行上下运动，通过外推钉齿片440、第一推钉齿片450和第二推钉齿片460击发对应容纳槽内的缝合钉，并将缝合钉500弹出，实现缝合钉的成钉高度由切割口向外逐渐增高，实现组织吻合。
实施例二
一种吻合器，包括实施例一中的具有分开式推钉片的钉仓组件，当吻合器进行击发时，成钉高度由切割口向外逐渐增高。
吻合器的工作过程是：
推钉器200击发推钉片，推钉片沿着钉仓本体100的第一表面110从近端向远端运动，
同时外推钉齿片440、第二推钉齿片460和第一推钉齿片450将对应的第三排容纳槽150、第二排容纳槽140和第一排容纳槽130内的第三缝合钉530、第二缝合钉520和第一缝合钉510朝着面向组织的方向进行上下运动，
钉头部560的尖状顶端朝着需要缝合的组织运动并穿透组织，使得尖状钉头部560朝着钉腿部550和钉跨部540弯折，形成更好的B字型，实现组织的固定缝合。
本发明具有分开式推钉片的钉仓组件及吻合器的有益效果是：
采用分开式设置的外侧单齿推钉片和内侧的左右二齿推钉片，能够分散成 钉过程所需的压力，降低对器械吻合力的要求，成钉高度由切割口向外逐渐增高，能够在确保吻合切割效果的同时，确保钉不会因为组织过厚崩掉，防止组织缝合效果不好的缺点。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

  1. 一种具有分开式推钉片的钉仓组件，其特征在于，包括：
    钉仓主体，具有面向需要缝合组织的第一表面，第一表面的相对面为第二表面，第一表面上具有可容纳缝合钉的容纳槽，容纳槽的外侧边缘设置有导引凹槽；
    钉仓托架，具有面向钉仓主体第二表面的容置腔，钉仓主体保持在容置腔内部进行限位固定；
    推钉片，包括分开设置的外推钉片、左推钉片和右推钉片，推钉片受到推钉器的击发将容纳槽内的缝合钉弹出，实现组织吻合。
  2. 根据权利要求1所述的具有分开式推钉片的钉仓组件，其特征在于，缝合钉包括钉跨部、钉腿部和钉头部，钉腿部由钉跨部两端倾斜向上延伸，钉头部由钉腿部顶端沿着竖直方向向上延伸。
  3. 根据权利要求2所述的具有分开式推钉片的钉仓组件，其特征在于，钉头部被形成为预折弯段，钉头部主体呈直线状，钉头部的顶端呈尖状。
  4. 根据权利要求1所述的具有分开式推钉片的钉仓组件，其特征在于，导引凹槽均布在钉仓主体第一表面的外侧边缘，使钉仓主体的侧边形成凸凹排列结构。
  5. 根据权利要求3所述的具有分开式推钉片的钉仓组件，其特征在于，第一表面的容纳槽沿着长度方向成排状分布，由内向外依次形成第一排容纳槽、第二排容纳槽和第三排容纳槽，其中第二排容纳槽相对于第一排容纳槽纵向错位设置，第三排容纳槽与第一排容纳槽沿纵向平行对称设置。
  6. 根据权利要求5所述的具有分开式推钉片的钉仓组件，其特征在于，每一排容纳槽包括多个纵向间隔分布的单体容纳槽，单体容纳槽的形状大小与推钉片匹配，单体容纳槽包括可容纳推钉片两侧端的支撑台以及形成在两个支撑台之间可容纳推钉齿片的支撑腔，
    第一排容纳槽、第二排容纳槽和第三排容纳槽内有对应的第一缝合钉、第二缝合钉和第三缝合钉，第一缝合钉、第二缝合钉和第三缝合钉的高度由内向外逐渐增高。
  7. 根据权利要求6所述的具有分开式推钉片的钉仓组件，其特征在于，外推钉片上具有一个外推钉齿片，左推钉片和右推钉片上均具有两个推钉齿片，分别为第一推钉齿片和第二推钉齿片，第一推钉齿片和第二推钉齿片之间设有横向加强筋，外推钉齿片、第一推钉齿片和第二推钉齿片的高度分别与第三缝合钉、第二缝合钉和第一缝合钉的高度对应设置。
  8. 根据权利要求7所述的具有分开式推钉片的钉仓组件，其特征在于，外 推钉齿片、第一推钉齿片和第二推钉齿片的顶表面具有推动缝合钉的钉座，钉座两端被形成为阶梯状凹槽口可支撑缝合钉的钉跨部以及钉跨部与钉腿部的接合处，使得推钉齿片接受到的作用力可全部传递至缝合钉。
  9. 根据权利要求8所述的具有分开式推钉片的钉仓组件，其特征在于，推钉片受到推钉器的击发时可沿着钉仓本体的第一表面从近端向远端运动，推钉齿片沿着容纳槽的竖直方向进行上下运动，将对应容纳槽内的缝合钉朝着面向组织的方向进行上下运动。
  10. 一种吻合器，其特征在于，包括如权利要求1～9任一项所述的具有分开式推钉片的钉仓组件，当吻合器进行击发时，成钉高度由切割口向外逐渐增高。
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CN113081124B (zh) * 2021-03-17 2022-04-12 苏州贝诺医疗器械有限公司 一种具有钉砧贴合缝合钉折弯结构的吻合器
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