WO2021031988A1 - 用于吻合器的钉仓组件和吻合器 - Google Patents

用于吻合器的钉仓组件和吻合器 Download PDF

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Publication number
WO2021031988A1
WO2021031988A1 PCT/CN2020/109089 CN2020109089W WO2021031988A1 WO 2021031988 A1 WO2021031988 A1 WO 2021031988A1 CN 2020109089 W CN2020109089 W CN 2020109089W WO 2021031988 A1 WO2021031988 A1 WO 2021031988A1
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WO
WIPO (PCT)
Prior art keywords
staple cartridge
side wall
anvil
staple
blocking portion
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Application number
PCT/CN2020/109089
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English (en)
French (fr)
Inventor
舒拓
Original Assignee
舒拓
康奇舒宁(苏州)医疗科技有限公司
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Application filed by 舒拓, 康奇舒宁(苏州)医疗科技有限公司 filed Critical 舒拓
Publication of WO2021031988A1 publication Critical patent/WO2021031988A1/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
    • A61B2017/07257—Stapler heads characterised by its anvil
    • 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 invention relates to the technical field of medical devices, in particular to a staple cartridge assembly and an anastomat used for an anastomat.
  • Endoscopic cutting stapler is used in endoscopic and open surgery, using push knife, suture nail to cut or anastomose tissue, instead of manual suture.
  • the stapler forms a fixed forming gap between the staple cartridge and the staple anvil to clamp the tissue, drives the cutting knife to advance, compresses the tissue in the middle to a certain thickness, and completes the ejection and forming of the staples. And pushing the knife to cut the tissue.
  • the disadvantage of the prior art is that the staple anvil in the stapler and the main body part of the staple cartridge are basically designed to be flush, the size of the forming gap between the two is roughly fixed due to the influence of the tissue, and the stapler needs to ensure that the staples
  • the overlapping parts of the two sides of the anvil and the two sides of the staple cartridge frame cannot be cracked, so that the design between the nail anvil and the staple cartridge frame must be compact. Therefore, the nail anvil and the staple cartridge frame are in the open state.
  • the included angle is small. At present, the included angle between the staple anvil and the staple cartridge frame in the stapler can only reach about 12 to 15 degrees in the opened state.
  • the technical problem to be solved by the embodiments of the present invention is to provide a staple cartridge assembly and stapler for a stapler, which can effectively expand the open state between the staple anvil and the staple cartridge frame The opening angle.
  • a staple cartridge assembly for a stapler comprising: a staple anvil and a staple cartridge rack with a staple cartridge
  • the staple anvil includes a staple anvil body with a shaped groove
  • the staple Both sides of the end of the anvil body are provided with a first side wall and a second side wall extending toward the staple cartridge rack
  • a pin passes between the end of the staple cartridge rack and the first side wall and the second side wall.
  • the staple cartridge rack and/or the staple cartridge has a first blocking portion extending toward the nail anvil
  • the nail anvil has a first recessed portion capable of accommodating the first blocking portion The first recessed portion is located at an end of the first side wall or the second side wall away from the pin.
  • the staple cartridge assembly for the stapler has at least an opened state and a closed state.
  • the first blocking portion In the closed state, the first blocking portion is inserted into the first recessed portion; in the opened state, the The first blocking portion is separated from the first recessed portion, and the lower end of the first blocking portion is lower than or equal to the upper end surface of the first side wall.
  • the first recessed portion is provided at the lower end of the inner side wall of the first side wall or the upper end surface of the anvil body or at the position where the anvil body and the first side wall are connected.
  • the staple cartridge rack and/or the staple cartridge has a second blocking portion extending toward the staple anvil, and the staple anvil body has a second recess capable of accommodating the second blocking portion Part, the second recessed part is located at one end of the first side wall or the second side wall away from the pin; the first blocking part and the second blocking part are respectively located in the staple cartridge Rack or both sides of the staple cartridge; in the opened state, the second blocking portion is separated from the second recessed portion, and the lower end of the second blocking portion is lower than or equal to the second side wall Upper end face.
  • the second recessed portion is provided at the lower end of the inner side wall of the second side wall or the upper end surface of the anvil body or at the connection position of the anvil body and the second side wall.
  • the maximum included angle between the staple anvil and the staple cartridge frame reaches 20.5 degrees.
  • the lower end surfaces of the first blocking portion and the second blocking portion are lower than the upper end surface of the anvil body.
  • the intersection of the lower end surface of the staple cartridge frame and the upper end surface of the first side wall of the nail anvil and the upper end surface of the second side wall is located at the first Between the blocking portion and the pin or between the second blocking portion and the pin.
  • the lower end surface of the nail magazine rack is used to mount the nail magazine corresponding to the molding groove, and the distance between the nail magazine and the end of the molding groove close to the pin and the pin is less than The distance between the first side wall and the second side wall and one end of the pin from the pin.
  • An anastomat which includes the staple cartridge assembly for an anastomat as described in any one of the above.
  • the staple cartridge assembly clamps the tissue
  • the tissue is blocked by the first blocking part and the second blocking part and cannot enter the gap, thus avoiding the problem that the edge of the tissue may get stuck in the gap.
  • the included angle between the staple cartridge frame and the staple anvil can be increased until the lower end of the first blocking portion is equal to the upper end surface of the first side wall, and the lower end of the second blocking portion is equal to the second side
  • the included angle between the staple cartridge frame and the staple anvil can be effectively increased.
  • the maximum included angle A between the staple anvil and the staple cartridge frame can reach 20.5 degrees.
  • Figure 1 is a schematic diagram of the structure of a staple cartridge assembly in the prior art
  • FIG. 2 is a schematic diagram of the structure of the nail magazine rack of the nail magazine assembly in the prior art where the nail magazine is installed;
  • Figure 3 is a front view of the staple cartridge assembly for the stapler in the closed state in the embodiment of the present invention
  • Figure 4 is a bottom view of the staple cartridge assembly used for the stapler in the closed state in the embodiment of the present invention
  • Figure 5 is a schematic diagram of the staple cartridge assembly used for the stapler in the opened state in the embodiment of the present invention.
  • Figure 6 is a front view of the staple cartridge assembly used for the stapler in the opened state in the embodiment of the present invention.
  • Fig. 7 is a schematic diagram of the structure of the staple cartridge rack in the staple cartridge assembly for the stapler in the embodiment of the present invention.
  • Nail anvil 11. Nail anvil body; 12, first side wall; 13, second side wall; 14, first recessed portion; 15, second recessed portion; 16, forming groove; 2. staple cartridge Frame; 21. The first blocking part; 22. The second blocking part; 23. Staple cartridge; 3. Pin; 4. Intersection point; 5. Through hole; 6. The first turning mechanism; 7. The second turning mechanism .
  • connection should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be a connection between two components, which can be directly connected or indirectly connected through an intermediate medium.
  • connection should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be a connection between two components, which can be directly connected or indirectly connected through an intermediate medium.
  • connection should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be a connection between two components, which can be directly connected or indirectly connected through an intermediate medium.
  • connection can be a mechanical connection or an electrical connection, or it can be a connection between two components, which can be directly connected or indirectly connected through an intermediate medium.
  • Fig. 1 is a schematic structural diagram of a staple cartridge assembly in the prior art
  • Fig. 2 is a schematic structural diagram of the staple cartridge frame of the staple cartridge assembly in the prior art where the staple cartridge is installed, as shown in Figs. 1 and 2, in the prior art
  • the staple cartridge assembly includes: a staple anvil 1 and a staple cartridge frame 2. Both sides of the end of the staple anvil body 11 have a first side wall 12 and a second side wall 13 extending toward the staple cartridge frame 2, and the ends of the staple cartridge frame 2
  • the first side wall 12 and the second side wall 13 are connected by a pin 3, so that the staple cartridge rack 2 is rotated around the staple anvil 1 through the pin 3, so that a certain degree is formed between the staple anvil 1 and the staple cartridge rack 2. Included angle.
  • the staple cartridge assembly needs to be closed at this time, if there is less tissue stuck in the gap, then during the forcible closing process, the upper end surfaces of the first side wall 12 and the second side wall 13 are far away from the pin 3 and the nail The lower end surface of the shelf 2 will cut the tissue or clamp it; if there is more and thicker tissue stuck in the gap, the staple cartridge assembly cannot be closed at all, and the doctor must re-operate to clamp the tissue. This causes inconvenience for users.
  • the nail anvil 1 in order to prevent a gap between the upper end surface of the first side wall 12 and the second side wall 13 away from the pin 3 and the lower end surface of the staple cartridge holder 2, the nail anvil 1 The angle between the two and the staple cartridge 2 in the opened state can only reach about 15 degrees.
  • the specifications of the staples used in staplers around the world are basically uniform.
  • the total length of the staple position on the staple cartridge 23 is also fixed. There are only three specifications of 30mm, 45mm, and 60mm.
  • the staples The position of the staples on the right end of the cartridge 23 must exceed the left ends of the first side wall 12 and the second side wall 13, because when the cut tissue is sutured by the staples on the staple cartridge 23, the end of the suture must exceed the clamped cut.
  • the ends of the tissues ensure the effectiveness of the suture, and prevent the ends of the cut tissues from being detached due to insufficient sutures.
  • the distance between the first side wall 12 and the second side wall 13 must be about one half staple to keep the tissue cut by the cutter completely sutured.
  • the above situation causes the position of the nails on the right end of the staple cartridge 23 to exceed the left ends of the first side wall 12 and the second side wall 13, and the distance beyond the left ends of the first side wall 12 and the second side wall 13 must be at least one and a half.
  • the distance of the nail width, so that the position of the pin 3 cannot be moved further to the left, the space between the first side wall 12 and the second side wall 13 of the nail anvil 1 must be provided with a half nail, and a cutting knife is also required. Enter the space.
  • the existing staple cartridge assembly has minimized the distance between the pin 3 and the left end of the first side wall 12 and the second side wall 13.
  • the staple anvil 1 and the staple cartridge rack 2 In the open state, the angle between the two reaches about 15 degrees. Therefore, the method of moving the position of the pin 3 used to connect the end of the staple cartridge rack 2 to the first side wall 12 and the second side wall 13 to the left cannot be realized due to the influence of the structure of the staple cartridge assembly itself.
  • FIG. 3 shows the present invention.
  • FIG. 5 is a schematic diagram of the staple cartridge assembly used for the stapler in the embodiment of the present invention in the open state
  • FIG. 5 is a schematic diagram of the staple cartridge assembly used for the stapler in the embodiment of the present invention in the open state
  • the staple cartridge assembly for the stapler may include: a staple anvil 1 and a staple cartridge with a staple cartridge 23
  • the rack 2 the nail anvil 1 includes a nail anvil body 11 with a forming groove 16, and both sides of the ends of the nail anvil body 11 have a first side wall 12 and a second side wall 13 extending toward the nail magazine rack 2, and the nail magazine rack 2
  • the end portion of the first side wall 12 and the second side wall 13 are connected by a pin 3
  • the staple cartridge rack 2 and/or the staple cartridge 23 has a first blocking portion 21 extending toward the nail anvil 1
  • the anvil 1 has a first recessed portion 14 capable of accommodating the first blocking portion 21, and the first recessed portion 14 is located at an end of the first side wall 12 or the second side wall 13 away from the pin 3.
  • the above-mentioned staple cartridge assembly for the stapler has at least an open state and a closed state.
  • the first blocking portion 21 In the closed state, the first blocking portion 21 is inserted into the first recessed portion 14; in the open state, the first blocking portion 21 is separated from the first recessed portion 14.
  • a recessed portion 14, and the lower end of the first blocking portion 21 is lower than or equal to the upper end surface of the first side wall 12.
  • the anvil 1 includes an anvil body 11 having a forming groove 16, the anvil body 11 extends substantially in a horizontal direction, and a forming groove 16 is formed on the upper end surface of the anvil body 11.
  • the two sides at the right end of the nail anvil body 11 have a first side wall 12 and a second side wall 13 extending upward toward the staple cartridge rack 2, and the first side wall 12 and the second side wall 13 are arranged oppositely.
  • the right end of the staple cartridge rack 2 is located between the first side wall 12 and the second side wall 13, and the two sides at the right end of the staple cartridge rack 2 are respectively connected to the first side wall 12 and the second side wall.
  • the staple cartridge rack 2 is close to each other, which can improve the compactness between the staple anvil 1 and the staple cartridge rack 2, and improve the stability and reliability of the staple cartridge assembly when it is opened and closed.
  • the right end of the staple cartridge rack 2, the first side wall 12, and the second side wall 13 are provided with through holes 5 along the horizontal direction.
  • the pins 3 are inserted into the through holes 5 to realize the end of the staple cartridge rack 2 and the first With the connection between the side wall 12 and the second side wall 13, the staple cartridge rack 2 can be rotated around the pin 3, thereby enabling the staple cartridge assembly of the stapler to have an open state and a closed state.
  • FIG. 7 is a schematic structural diagram of the staple cartridge rack in the staple cartridge assembly for the stapler in the embodiment of the present invention.
  • the staple cartridge rack 2 may have a first blocking portion 21 extending downward toward the staple anvil 1 .
  • the staple cartridge 23 may have a first blocking portion 21 extending toward the anvil 1.
  • both the staple cartridge rack 2 and the staple cartridge 23 may jointly form a first blocking portion 21 extending downward toward the anvil 1.
  • the nail anvil 1 has a first recessed portion 14 that can accommodate the first blocking portion 21.
  • the two are located One end of the side wall 12 or the second side wall 13 away from the pin 3, that is, the left end of the first side wall 12 or the second side wall 13.
  • the lower end surface of the nail magazine rack 2 is used to install the nail magazine 23 corresponding to the forming groove 16.
  • the distance between the nail magazine 23 and the end of the forming groove near the pin 3 and the pin 3 is smaller than the first side wall 12 and the second side wall 13 The distance between the end away from the pin 3 and the pin 3.
  • the first recessed portion 14 may be provided at the lower end of the inner side wall of the first side wall 12, may also be provided at the upper end surface of the anvil body 11, or may be provided at the anvil body 11. It is connected to the first side wall 12.
  • the depth of the first recessed portion 14 may be determined according to the height of the first blocking portion 21 extending downward.
  • the deepest first recessed portion 14 can be a groove penetrating downwardly through the anvil body 11 or the first side wall 12, so that the downward extending height of the first blocking portion 21 can be maximized.
  • the lower end of the first blocking portion 21 should not exceed the lower end surface of the anvil body 11 as much as possible, otherwise it will cause nails.
  • the maximum radial dimension of the cartridge component increases here, which is not conducive to the staple cartridge component extending into the human body.
  • FIG. 4 is a bottom view of the staple cartridge assembly used for the stapler in the embodiment of the present invention in the closed state.
  • the staple cartridge rack 2 may have a staple facing A second blocking portion 22 extending in the direction of the anvil 1.
  • the staple cartridge 23 may have a second blocking portion 22 extending toward the anvil 1.
  • both the staple cartridge rack 2 and the staple cartridge 23 can jointly form a second blocking portion 22 extending downward toward the anvil 1.
  • the anvil body 11 has a second recessed portion 15 capable of accommodating the second blocking portion 22. When the second blocking portion 22 is received in the second recessed portion 15, both are located at the end of the first side wall 12 or the second side wall 13 away from the pin 3.
  • the first blocking portion 21 and the second blocking portion 22 are respectively located on both sides of the staple cartridge rack 2 or the staple cartridge 23.
  • the first recessed portion 14 and the second recessed portion 15 are respectively located on both sides of the nail anvil 1.
  • the second recessed portion 15 may be provided at the lower end of the inner side wall of the second side wall 13 or the upper end surface of the anvil body 11 or at the connection position of the anvil body 11 and the second side wall 13.
  • the depth of the second recessed portion 15 may be determined according to the height of the second blocking portion 22 extending downward.
  • the deepest second recessed portion 15 may be a groove penetrating downwardly through the anvil body 11 or the second side wall 13, so that the downward extension height of the second blocking portion 22 can be maximized.
  • the right end of the nail anvil 1 and/or the nail magazine rack 2 may be connected with a first turning head mechanism 6 and a second turning head mechanism 7, and the first turning head mechanism 6 and the second turning head mechanism 7 are opposed to each other. Respectively control the staple cartridge assembly to rotate left or right.
  • the opposite surfaces of the staple anvil 1 and the staple cartridge frame 2 are substantially flush, and the size of the forming gap between the left ends of the two is approximately fixed under the influence of tissue.
  • the first side wall 12 and the second side wall 13 on both sides of the nail anvil 1 and the two sides of the nail magazine frame 2 are basically free of cracks.
  • the first blocking portion 21 is inserted into the first recessed portion 14 to be accommodated.
  • the two blocking portions 22 are inserted into the second recessed portion 15 to be accommodated, so that the upper end surface of the right end of the nail anvil body 11 and the lower end surface of the right end of the staple cartridge frame 2 are tightly spaced.
  • the staple cartridge rack 2 has the first blocking portion 21 and the second blocking portion 22 extending toward the nail anvil 1, the positions of the lower ends of the first blocking portion 21 and the second blocking portion 22 continue to rise, and finally The lower end of the first blocking portion 21 is lower than or equal to the upper end surface of the first side wall 12, and the lower end of the second blocking portion 22 is lower than or equal to the upper end surface of the second side wall 13. In this way, even if there is a gap between the upper end surface of the first side wall 12 and the second side wall 13 away from the pin 3 and the lower end surface of the staple cartridge rack 2, the first blocking portion 21 and the second blocking portion 22 are located at the gap.
  • the upper end surfaces of the first side wall 12 and the second side wall 13 are basically engaged with one end away from the pin 3, which acts as a barrier. At this time, the intersection 4 between the lower end surface of the staple cartridge rack 2 and the upper end surfaces of the first side wall 12 and the second side wall 13 of the nail anvil 1 is located between the first blocking portion 21 and the pin 3 or the second Between the second blocking portion 22 and the pin 3.
  • the staple cartridge assembly clamps the tissue
  • the tissue is blocked by the first blocking portion 21 and the second blocking portion 22 and cannot enter the gap, thus avoiding the problem that the edge of the tissue may get stuck in the gap.
  • the included angle between the staple cartridge frame 2 and the staple anvil 1 can be increased until the lower end of the first blocking portion 21 is equal to the upper end surface of the first side wall 12, and the lower end of the second blocking portion 22 is equal to the upper end surface of the second side wall 13 Therefore, the included angle between the nail magazine rack 2 and the nail anvil 1 can be effectively increased.
  • the nail magazine rack 2 and the nail anvil 1 Due to the influence of the specific specifications of the nail magazine 23 and the forming groove 16 in the prior art, the nail magazine rack 2 and the nail anvil 1 The thickness is restricted and must be matched with the staple cartridge 23 and the forming groove 16 of specific specifications in the prior art. Therefore, when the staple cartridge assembly for the stapler in this application is fully opened, the staple anvil 1 and the staple cartridge rack 2 The maximum angle A between them can reach 20.5 degrees.
  • the present application also proposes a stapler, which includes the staple cartridge assembly for the stapler as described above.
  • the staple cartridge assembly and stapler of the present application can increase the opening angle between the staple anvil 1 and the staple cartridge frame 2 in the opened state without increasing the cost and adding any other parts, so that the anastomosis can be increased. It is more convenient to use, while still avoiding that the edge of the tissue may get stuck between the upper end surface of the first side wall 12 and the second side wall 13 away from the pin 3 and the lower end surface of the staple cartridge rack 2. The problem in the crevice.

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Abstract

本发明公开了一种用于吻合器的钉仓组件和吻合器，其涉及医疗器械技术领域，所述用于吻合器的钉仓组件包括：钉砧和具有钉仓的钉仓架，所述钉砧包括具有成型槽的钉砧本体，所述钉砧本体端部的两侧具有朝向所述钉仓架延伸的第一侧壁和第二侧壁，所述钉仓架的端部与所述第一侧壁、第二侧壁之间通过销进行连接，所述钉仓架和/或所述钉仓上具有朝向所述钉砧方向延伸的第一阻挡部，所述钉砧上具有能容纳所述第一阻挡部的第一凹进部，所述第一凹进部位于所述第一侧壁或所述第二侧壁远离所述销的一端处。本申请能够有效扩大钉砧与钉仓架之间张开状态的张角。

Description

用于吻合器的钉仓组件和吻合器
交叉参考相关引用
本申请要求2019年8月21日提交的申请号为201910772778.7的中国专利申请的优先权，上述申请参考并入本文。
技术领域
本发明涉及医疗器械技术领域，特别涉及一种用于吻合器的钉仓组件和吻合器。
背景技术
腔镜切割吻合器用于腔镜和开放手术中，利用推刀、缝合钉对组织进行离断或吻合，替代手工缝合。现有的技术中，吻合器通过在钉仓与钉砧之间形成固定的成型间隙来夹持组织，通过驱动切割刀前进，将中间的组织压缩到一定厚度，同时完成缝合钉的推出、成型以及推刀对组织的切断。
现有技术的不足之处在于，吻合器中的钉砧和钉仓架主体部分相对面基本设计平齐，两者之间成型间隙的大小受组织影响大致是固定的，并且吻合器需要保证钉砧两侧与钉仓架两侧重合部分不能有夹缝产生，如此就使得钉砧与钉仓架之间设计的必须紧凑，因此，钉砧与钉仓架在张开状态下两者之间的夹角较小，目前而言，吻合器中钉砧与钉仓架在张开状态下的夹角仅能够达到12度至15度左右。
发明内容
为了克服现有技术的上述缺陷，本发明实施例所要解决的技术问题是提供了一种用于吻合器的钉仓组件和吻合器，其能够有效扩大钉砧与钉仓架之间张开状态的张角。
本发明实施例的具体技术方案是：
一种用于吻合器的钉仓组件，所述用于吻合器的钉仓组件包括：钉砧和具有钉仓的钉仓架，所述钉砧包括具有成型槽的钉砧本体，所述钉砧本体端部的两侧具有朝向所述钉仓架延伸的第一侧壁和第二侧壁，所述钉仓架的端部与所述第一侧壁、第二侧壁之间通过销进行连接，所述钉仓架和/或所述钉仓上具有朝向所述钉砧方向延伸的第一阻挡部，所述钉砧上具有能容纳所述第一阻挡部的第一凹进部，所述第一凹进部位于所述第 一侧壁或所述第二侧壁远离所述销的一端处。
优选地，所述用于吻合器的钉仓组件至少具有张开状态和闭合状态，在闭合状态下，所述第一阻挡部插入所述第一凹进部中；在张开状态下，所述第一阻挡部脱离所述第一凹进部，且所述第一阻挡部的下端低于或等于所述第一侧壁上端面。
优选地，所述第一凹进部设置在所述第一侧壁的内侧壁下端处或钉砧本体的上端面处或钉砧本体与第一侧壁接连位置处。
优选地，所述钉仓架和/或所述钉仓上具有朝向所述钉砧方向延伸的第二阻挡部，所述钉砧本体上具有能容纳所述第二阻挡部的第二凹进部，所述第二凹进部位于所述第一侧壁或所述第二侧壁远离所述销的一端处；所述第一阻挡部和所述第二阻挡部分别位于所述钉仓架或所述钉仓的两侧；在张开状态下，所述第二阻挡部脱离所述第二凹进部，且所述第二阻挡部的下端低于或等于所述第二侧壁上端面。
优选地，所述第二凹进部设置在所述第二侧壁的内侧壁下端处或钉砧本体的上端面处或钉砧本体与第二侧壁接连位置处。
优选地，当所述用于吻合器的钉仓组件处于完全张开时，所述钉砧和所述钉仓架之间的最大夹角达到20.5度。
优选地，在闭合状态下，所述第一阻挡部、所述第二阻挡部的下端面低于所述钉砧本体的上端面。
优选地，在张开状态下，所述钉仓架的下端面与所述钉砧的第一侧壁、所述第二侧壁的上端面之间形成夹角的相交点位于所述第一阻挡部与所述销之间或所述第二阻挡部与所述销之间。
优选地，所述钉仓架的下端面上用于安装与所述成型槽相对应的所述钉仓，所述钉仓和所述成型槽靠近所述销的一端与所述销的距离小于所述第一侧壁和所述第二侧壁与所述销的一端距离所述销的距离。
一种吻合器，所述吻合器包括如上述任一所述的用于吻合器的钉仓组件。
本发明的技术方案具有以下显著有益效果：
当钉仓组件夹持组织时，组织受到第一阻挡部和第二阻挡部的阻挡无法进入至缝隙中，这样就避免了组织的边缘可能会卡入到上述缝隙中的问题。同时，由于钉仓架与钉砧之间的夹角可以增大至所述第一阻挡部的下端等于所述第一侧壁上端面，所述第二阻挡部的下端等于所述第二侧壁上端面，因此，钉仓架与钉砧之间的夹角可以得以有效增大。本申请中的用于吻合器的钉仓组件处于完全张开时，所述钉砧和所述钉仓架之间的 最大夹角A可以达到20.5度。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
附图说明
在此描述的附图仅用于解释目的，而不意图以任何方式来限制本发明公开的范围。另外，图中的各部件的形状和比例尺寸等仅为示意性的，用于帮助对本发明的理解，并不是具体限定本发明各部件的形状和比例尺寸。本领域的技术人员在本发明的教导下，可以根据具体情况选择各种可能的形状和比例尺寸来实施本发明。
图1为现有技术中钉仓组件的结构示意图；
图2为现有技术中钉仓组件的钉仓架安装钉仓一侧的结构示意图；
图3为本发明实施例中用于吻合器的钉仓组件在闭合状态下的正视图；
图4为本发明实施例中用于吻合器的钉仓组件在闭合状态下的仰视图；
图5为本发明实施例中用于吻合器的钉仓组件在张开状态下的示意图；
图6为本发明实施例中用于吻合器的钉仓组件在张开状态下的正视图；
图7为本发明实施例中用于吻合器的钉仓组件中钉仓架的结构示意图。
以上附图的附图标记：
1、钉砧；11、钉砧本体；12、第一侧壁；13、第二侧壁；14、第一凹进部；15、第二凹进部；16、成型槽；2、钉仓架；21、第一阻挡部；22、第二阻挡部；23、钉仓；3、销；4、相交点；5、贯穿孔；6、第一转头机构；7、第二转头机构。
具体实施方式
结合附图和本发明具体实施方式的描述，能够更加清楚地了解本发明的细节。但是，在此描述的本发明的具体实施方式，仅用于解释本发明的目的，而不能以任何方式理解成是对本发明的限制。在本发明的教导下，技术人员可以构想基于本发明的任意可能的变形，这些都应被视为属于本发明的范围。需要说明的是，当元件被称为“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为 是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。术语“安装”、“相连”、“连接”应做广义理解，例如，可以是机械连接或电连接，也可以是两个元件内部的连通，可以是直接相连，也可以通过中间媒介间接相连，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
图1为现有技术中钉仓组件的结构示意图，图2为现有技术中钉仓组件的钉仓架安装钉仓一侧的结构示意图，如图1和图2所示，现有技术中钉仓组件包括：钉砧1和钉仓架2，钉砧本体11端部的两侧具有朝向钉仓架2延伸的第一侧壁12和第二侧壁13，钉仓架2的端部与第一侧壁12、第二侧壁13之间通过销3进行连接，从而使得钉仓架2通过销3绕钉砧1转动，进而使得钉砧1和钉仓架2之间形成一定的夹角。
申请人发现，当钉砧1和钉仓架2之间形成夹角时，第一侧壁12、第二侧壁13的上端面远离销3的一端处需要与钉仓架2的下端面必须接合，从而避免第一侧壁12、第二侧壁13的上端面远离销3的一端处与钉仓架2的下端面之间出现缝隙，一旦出现缝隙，那么当钉仓组件处于张开状态夹持组织时，组织的边缘就可能会卡入到上述缝隙中。如果此时需要将钉仓组件闭合，若卡入缝隙中的组织较少，那么在强行闭合的过程中，第一侧壁12、第二侧壁13的上端面远离销3的一端处与钉仓架2的下端面就会将组织切坏或夹伤；若卡入缝隙中的组织较多较厚，那么钉仓组件根本就无法闭合，使用的医生必须重新操作对组织进行夹持，这样造成了使用者的不便。因此，在现有的上述结构中，为了使得第一侧壁12、第二侧壁13的上端面远离销3的一端处与钉仓架2的下端面之间不会出现缝隙，钉砧1与钉仓架2在张开状态下两者之间的夹角只能达到15度左右。
由于钉砧1与钉仓架2在张开状态下两者之间的夹角较小，在小角度下使用的医生不易将组织夹至钉砧1与钉仓23之间，因此，需要进一步扩大钉砧1与钉仓架2之间张开状态的张角，且张角扩大以后，第一侧壁12、第二侧壁13的上端面远离销3的一端处与钉仓架2的下端面之间必须不会出现缝隙。同时申请人还发现，如图1所示，若将钉仓架2的端部与第一侧壁12、第二侧壁13之间连接用的销3的位置向左移动，则就 可以直接在第一侧壁12、第二侧壁13的上端面远离销3的一端处与钉仓架2的下端面之间不出现缝隙的前提下扩大钉砧1与钉仓架2之间张开状态的张角。但是上述方案受到客观因素影响，而无法实现。
具体原因如下，目前全世界的吻合器中使用的钉的规格基本是统一的，钉仓23上钉位的总长也是固定的，仅有30mm、45mm、60mm三种规格，为了安全性考虑，钉仓23上右端的钉的位置必须超过第一侧壁12、第二侧壁13的左端，因为通过钉仓23上钉对切断的组织进行缝合时，缝合处的端部必须超过被夹持切断组织的端部，如此保证缝合的有效性，防止切断组织的端部未充分缝合而可能出现脱开的情况。这样导致应使第一侧壁12、第二侧壁13之间的内部处必须保留约1颗半钉的距离，使切刀切割的组织能被完全缝合。上述情况导致钉仓23上右端的钉的位置必须超过第一侧壁12、第二侧壁13的左端，且超过第一侧壁12、第二侧壁13的左端的距离起码要达到一个半钉宽的距离，如此，导致销3的位置无法进一步向左移动，钉砧1的第一侧壁12和第二侧壁13之间的空间还必须设置一个半钉，且还需要留切割刀进入的空间。综上所述，现有的钉仓组件已经将销3与第一侧壁12、第二侧壁13的左端的距离做到接近于最小，在这样的前提下，钉砧1与钉仓架2在张开状态下两者之间的夹角才达到15度左右。因此，将钉仓架2的端部与第一侧壁12、第二侧壁13之间连接用的销3的位置向左移动的这种方式受到钉仓组件自身结构影响无法实现。
针对上述情况，为了能够有效扩大钉砧1与钉仓架2之间在张开状态下的张角，申请人创新性的提出了一种用于吻合器的钉仓组件，图3为本发明实施例中用于吻合器的钉仓组件在闭合状态下的正视图，图5为本发明实施例中用于吻合器的钉仓组件在张开状态下的示意图，图6为本发明实施例中用于吻合器的钉仓组件在张开状态下的正视图，如图3至图6所示，该用于吻合器的钉仓组件可以包括：钉砧1和具有钉仓23的钉仓架2，钉砧1包括具有成型槽16的钉砧本体11，钉砧本体11端部的两侧具有朝向钉仓架2延伸的第一侧壁12和第二侧壁13，钉仓架2的端部与第一侧壁12、第二侧壁13之间通过销3进行连接，钉仓架2和/或所述钉仓23上具有朝向钉砧1方向延伸的第一阻挡部21，钉砧1上具有能容纳第一阻挡部21的第一凹进部14，第一凹进部14位于第一侧壁12或第二侧壁13远离销3的一端处。
上述用于吻合器的钉仓组件至少具有张开状态和闭合状态，在闭合状态下，第一阻挡部21插入第一凹进部14中；在张开状态下，第一阻挡部21脱离第一凹进部14，且第一阻挡部21的下端低于或等于第一侧壁12上端面。当用于吻合器的钉仓组件处于完 全张开时，钉砧1和钉仓架2之间的最大夹角A可以达到20.5度。
如图3所示，钉砧1包括具有成型槽16的钉砧本体11，钉砧本体11大体沿水平方向延伸，其上端面上形成有成型槽16。钉砧本体11右端处的两侧具有朝向钉仓架2向上延伸的第一侧壁12和第二侧壁13，第一侧壁12和第二侧壁13相对设置。在闭合状态下，钉仓架2的右端处位于第一侧壁12和第二侧壁13之间，且钉仓架2的右端处的两侧分别与第一侧壁12和第二侧壁13紧贴，如此可以提高钉砧1和钉仓架2之间的紧凑性，提高钉仓组件张开和闭合时的稳定性和可靠性。在钉仓架2的右端部、第一侧壁12和第二侧壁13上沿水平方向开设有贯穿孔5，贯穿孔5中插入销3，从而实现钉仓架2的端部与第一侧壁12、第二侧壁13之间的连接，钉仓架2能够绕销3能够实现转动，进而使得吻合器的钉仓组件具有张开状态和闭合状态。
图7为本发明实施例中用于吻合器的钉仓组件中钉仓架的结构示意图，如图7所示，钉仓架2可以具有朝向钉砧1方向向下延伸的第一阻挡部21。在另一种可行的实施方式中，钉仓23上可以具有朝向钉砧1方向延伸的第一阻挡部21。在其它可行的实施方式中，钉仓架2和钉仓23两者可以共同形成朝向钉砧1方向向下延伸的第一阻挡部21。
如图5和图6所示，钉砧1上具有能容纳第一阻挡部21的第一凹进部14，当第一阻挡部21容纳在第一凹进部14中时，两者位于第一侧壁12或第二侧壁13远离销3的一端处，即第一侧壁12或第二侧壁13的左端处。钉仓架2的下端面上用于安装与成型槽16相对应的钉仓23，钉仓23和成型槽靠近销3的一端与销3的距离小于第一侧壁12和第二侧壁13远离销3的一端与销3的距离。
在一种可行的实施方式中，第一凹进部14可以设置在第一侧壁12的内侧壁下端处，也可以设置在钉砧本体11的上端面处，还可以设置在钉砧本体11与第一侧壁12接连位置处。第一凹进部14的深度可以根据第一阻挡部21向下延伸的高度确定。第一凹进部14最深可以是一个向下贯穿钉砧本体11或第一侧壁12的槽，如此，第一阻挡部21向下延伸的高度可以达到最大化。第一阻挡部21向下延伸的高度越大，钉仓组件处于张开状态下，在第一侧壁12、第二侧壁13的上端面远离销3的一端处与钉仓架2的下端面之间不出现缝隙的前提下，钉砧1和钉仓架2之间的夹角越大。当然，在钉仓组件处于闭合状态下，第一阻挡部21插入第一凹进部14中时，第一阻挡部21的下端尽可能的不超过钉砧本体11的下端面，否则会造成钉仓组件在此处径向的最大尺寸增大，不利于钉仓组件伸入至人体内部。
在一种可行的实施方式中，图4为本发明实施例中用于吻合器的钉仓组件在闭合状 态下的仰视图，如图4和图7所示，钉仓架2可以具有朝向钉砧1方向延伸的第二阻挡部22。在另一种可行的实施方式中，钉仓23上可以具有朝向钉砧1方向延伸的第二阻挡部22。在其它可行的实施方式中，钉仓架2和钉仓23两者可以共同形成朝向钉砧1方向向下延伸的第二阻挡部22。钉砧本体11上具有能容纳第二阻挡部22的第二凹进部15。当第二阻挡部22容纳在第二凹进部15中时，两者位于第一侧壁12或第二侧壁13远离销3的一端处。第一阻挡部21和第二阻挡部22分别位于钉仓架2或钉仓23的两侧。第一凹进部14和第二凹进部15分别位于钉砧1的两侧。
同理，第二凹进部15可以设置在第二侧壁13的内侧壁下端处或钉砧本体11的上端面处或钉砧本体11与第二侧壁13接连位置处。第二凹进部15的深度可以根据第二阻挡部22向下延伸的高度确定。第二凹进部15最深可以是一个向下贯穿钉砧本体11或第二侧壁13的槽，如此，第二阻挡部22向下延伸的高度可以达到最大化。
如图1所示，钉砧1和/或钉仓架2的右端可以连接有相对设置第一转头机构6和第二转头机构7，第一转头机构6和第二转头机构7分别控制钉仓组件向左转动或向右转动。
如图1所示，当钉仓组件处于闭合状态下时，钉砧1和钉仓架2主体部分相对面基本平齐，两者左端处之间的成型间隙的大小受组织影响大致固定。钉砧1两侧的第一侧壁12和第二侧壁13与钉仓架2两侧重合部分基本不会有夹缝产生，第一阻挡部21插入第一凹进部14中得以收纳，第二阻挡部22插入第二凹进部15中得以收纳，这样使得钉砧本体11右端的上端面与钉仓架2右端的下端面之间保证紧凑。
如图5和图6所示，当钉仓组件张开时，钉仓架2绕销3进行转动，使得第一阻挡部21从第一凹进部14中脱离，第二阻挡部22从第二凹进部15中脱离。随着钉仓架2与钉砧1之间的夹角不断增大，钉仓架2的下端面与钉砧1的第一侧壁12、第二侧壁13的上端面之间形成夹角的相交点4从第一侧壁12、第二侧壁13的上端面的左端向右端移动。在此过程中，由于钉仓架2具有朝向钉砧1方向延伸的第一阻挡部21和第二阻挡部22，第一阻挡部21和第二阻挡部22的下端的位置不断升高，最终第一阻挡部21的下端低于或等于第一侧壁12上端面，第二阻挡部22的下端低于或等于第二侧壁13上端面。这样即使第一侧壁12、第二侧壁13的上端面远离销3的一端处与钉仓架2的下端面之间出现缝隙，但是该缝隙处第一阻挡部21和第二阻挡部22与第一侧壁12、第二侧壁13的上端面远离销3的一端处基本相接合，如此起到了阻挡作用。此时，钉仓架2的下端面与钉砧1的第一侧壁12、第二侧壁13的上端面之间形成夹角的相交点4位于第 一阻挡部21与销3之间或第二阻挡部22与销3之间。
当钉仓组件夹持组织时，组织受到第一阻挡部21和第二阻挡部22的阻挡无法进入至缝隙中，这样就避免了组织的边缘可能会卡入到上述缝隙中的问题。同时，由于钉仓架2与钉砧1之间的夹角可以增大至第一阻挡部21的下端等于第一侧壁12上端面，第二阻挡部22的下端等于第二侧壁13上端面，因此，钉仓架2与钉砧1之间的夹角可以得以有效增大，由于受到现有技术中钉仓23、成型槽16特定规格的影响，因此，钉仓架2与钉砧1厚度受到制约，必须与现有技术中特定规格的钉仓23、成型槽16相匹配，所以，本申请中的用于吻合器的钉仓组件处于完全张开时，钉砧1和钉仓架2之间的最大夹角A可以达到20.5度。
在本申请中还提出了一种吻合器，吻合器包括如上述任一的用于吻合器的钉仓组件。本申请中的钉仓组件和吻合器能够在不增加成本、不添加任何其它零部件的前提下使得钉砧1和钉仓架2之间在张开状态下的张角得到增大，让吻合器的使用更加方便，同时依然能避免组织的边缘可能会卡入到第一侧壁12、第二侧壁13的上端面远离销3的一端处与钉仓架2的下端面之间出现的缝隙中的问题。
披露的所有文章和参考资料，包括专利申请和出版物，出于各种目的通过援引结合于此。描述组合的术语“基本由…构成”应该包括所确定的元件、成分、部件或步骤以及实质上没有影响该组合的基本新颖特征的其他元件、成分、部件或步骤。使用术语“包含”或“包括”来描述这里的元件、成分、部件或步骤的组合也想到了基本由这些元件、成分、部件或步骤构成的实施方式。这里通过使用术语“可以”，旨在说明“可以”包括的所描述的任何属性都是可选的。多个元件、成分、部件或步骤能够由单个集成元件、成分、部件或步骤来提供。另选地，单个集成元件、成分、部件或步骤可以被分成分离的多个元件、成分、部件或步骤。用来描述元件、成分、部件或步骤的公开“一”或“一个”并不说为了排除其他的元件、成分、部件或步骤。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (10)

  1. 一种用于吻合器的钉仓组件，其特征在于，所述用于吻合器的钉仓组件包括：钉砧和具有钉仓的钉仓架，所述钉砧包括具有成型槽的钉砧本体，所述钉砧本体端部的两侧具有朝向所述钉仓架延伸的第一侧壁和第二侧壁，所述钉仓架的端部与所述第一侧壁、第二侧壁之间通过销进行连接，所述钉仓架和/或所述钉仓上具有朝向所述钉砧方向延伸的第一阻挡部，所述钉砧上具有能容纳所述第一阻挡部的第一凹进部，所述第一凹进部位于所述第一侧壁或所述第二侧壁远离所述销的一端处。
  2. 根据权利要求1所述的用于吻合器的钉仓组件，其特征在于，所述用于吻合器的钉仓组件至少具有张开状态和闭合状态，在闭合状态下，所述第一阻挡部插入所述第一凹进部中；在张开状态下，所述第一阻挡部脱离所述第一凹进部，且所述第一阻挡部的下端低于或等于所述第一侧壁上端面。
  3. 根据权利要求1所述的用于吻合器的钉仓组件，其特征在于，所述第一凹进部设置在所述第一侧壁的内侧壁下端处或钉砧本体的上端面处或钉砧本体与第一侧壁接连位置处。
  4. 根据权利要求2所述的用于吻合器的钉仓组件，其特征在于，所述钉仓架和/或所述钉仓上具有朝向所述钉砧方向延伸的第二阻挡部，所述钉砧本体上具有能容纳所述第二阻挡部的第二凹进部，所述第二凹进部位于所述第一侧壁或所述第二侧壁远离所述销的一端处；所述第一阻挡部和所述第二阻挡部分别位于所述钉仓架或所述钉仓的两侧；在张开状态下，所述第二阻挡部脱离所述第二凹进部，且所述第二阻挡部的下端低于或等于所述第二侧壁上端面。
  5. 根据权利要求4所述的用于吻合器的钉仓组件，其特征在于，所述第二凹进部设置在所述第二侧壁的内侧壁下端处或钉砧本体的上端面处或钉砧本体与第二侧壁接连位置处。
  6. 根据权利要求1所述的用于吻合器的钉仓组件，其特征在于，当所述用于吻合器的钉仓组件处于完全张开时，所述钉砧和所述钉仓架之间的最大夹角达到20.5度。
  7. 根据权利要求4所述的用于吻合器的钉仓组件，其特征在于，在闭合状态下，所述第一阻挡部、所述第二阻挡部的下端面低于所述钉砧本体的上端面。
  8. 根据权利要求4所述的用于吻合器的钉仓组件，其特征在于，在张开状态下，所述钉仓架的下端面与所述钉砧的第一侧壁、所述第二侧壁的上端面之间形成夹角的相交点位于所述第一阻挡部与所述销之间或所述第二阻挡部与所述销之间。
  9. 根据权利要求1所述的用于吻合器的钉仓组件，其特征在于，所述钉仓架的下端面上用于安装与所述成型槽相对应的所述钉仓，所述钉仓和所述成型槽靠近所述销的一端与所述销的距离小于所述第一侧壁和所述第二侧壁远离所述销的一端与所述销的距离。
  10. 一种吻合器，其特征在于，所述吻合器包括如权利要求1至9中任一所述的用于吻合器的钉仓组件。
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