WO2023000549A1 - 一种新型一次性止血夹 - Google Patents

一种新型一次性止血夹 Download PDF

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Publication number
WO2023000549A1
WO2023000549A1 PCT/CN2021/129618 CN2021129618W WO2023000549A1 WO 2023000549 A1 WO2023000549 A1 WO 2023000549A1 CN 2021129618 W CN2021129618 W CN 2021129618W WO 2023000549 A1 WO2023000549 A1 WO 2023000549A1
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WO
WIPO (PCT)
Prior art keywords
hemostatic clip
clamping arm
lower clamping
upper clamping
clip body
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PCT/CN2021/129618
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English (en)
French (fr)
Inventor
刘红军
刘刚
朱俊
赵华
唐波
Original Assignee
苏州美东汇成精密部件有限公司
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Publication of WO2023000549A1 publication Critical patent/WO2023000549A1/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
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122—Clamps or clips, e.g. for the umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122—Clamps or clips, e.g. for the umbilical cord
    • A61B17/1227—Spring clips
    • 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
    • A61B2017/00831—Material properties
    • A61B2017/00862—Material properties elastic or resilient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00867—Material properties shape memory effect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding

Definitions

  • the invention relates to the technical field of hemostatic clips, in particular to a novel disposable hemostatic clip.
  • Hemostatic clips are generally made of plastic products and are closure devices used to mark, stop bleeding or close tubular tissue structures in laparoscopic abdominal surgery.
  • the closure device can be inserted into the abdominal cavity as needed through a tubular delivery device Inside, the closure device is forcibly closed and stored within the delivery device, and then released to close the tubular tissue.
  • the present invention provides a new type of disposable hemostatic clip to solve the problem in the prior art proposed in the background art above. Since the curved root of the hemostatic clip is made of plastic, when the curved root of the hemostatic clip is continuously closed and opened, Yield fatigue will occur at the bent root. Even if there are many modified materials, there are inevitably tissue defects in the plastic itself. The lighter ones will make the opening of the hemostatic clip too small to fit on the tubular tissue. In severe cases, the hemostatic clip will be directly removed from the delivery. The device falls off, which will make the delivery device invalid, and the operation will be blocked, so there is a great risk problem.
  • a new type of disposable hemostatic clip including a hemostatic clip body, the hemostatic clip body is composed of a fixed hook, an upper clamping arm, a curved root, a lower clamping arm, a limiting block and a fixed cylindrical block.
  • a recovery device There is a recovery device.
  • the restoring device includes installation grooves, the installation grooves are set inside the hemostatic clip body, and the installation grooves are respectively located on the upper clamping arm, the bending root and the lower clamping arm
  • the inside of the installation groove is provided with a recovery strip.
  • the curved root is provided with an arc-shaped groove that is arranged through.
  • the fixed connection between the upper clamping arm and the opposite side wall of the lower clamping arm has a plurality of engaging protrusions, and the plurality of engaging protrusions are arranged in a staggered manner.
  • the body of the hemostatic clip is made of polytetrafluoroethylene.
  • the fixed hook, the upper clamping arm, the bent root, the lower clamping arm, the limiting block, the fixed cylindrical block and a plurality of snapping bumps are integrally formed.
  • the recovery strip is fixedly connected to the outer wall of the hemostatic clip body.
  • the recovery strip is made of memory metal or non-metallic material.
  • the recovery strip of memory metal or non-metal material is inserted into the upper clamping arm, the curved root and the inside of the lower clamping arm to replace the yielding part in the curved root of the original hemostatic clip, and the recovery of memory metal or non-metallic material
  • the long bar has a strong yield memory, which can ensure that the elastic force between the upper clamping arm and the lower clamping arm remains unchanged when the hemostatic clamp body is continuously closed and opened.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a novel disposable hemostatic clip proposed in Embodiment 1 of the present invention
  • Fig. 2 is a schematic diagram of the front three-dimensional structure of a new type of disposable hemostatic clip proposed in Embodiment 1 of the present invention
  • Fig. 3 is a frontal sectional structural schematic diagram of a new type of disposable hemostatic clip proposed in Embodiment 1 of the present invention
  • Fig. 4 is a schematic diagram of a partially enlarged structure of A in Fig. 3;
  • Fig. 5 is a schematic diagram of the front structure of a new type of disposable hemostatic clip proposed in Example 2 of the present invention.
  • a component when a component is said to be “fixed” to another component, it can be directly on the other component or there can also be an intervening component.
  • a component When a component is said to be “connected” to another component, it may be directly connected to the other component or there may be intervening components at the same time.
  • a component When a component is said to be “set on” another component, it may be set directly on the other component or there may be an intervening component at the same time.
  • the terms “vertical,” “horizontal,” “left,” “right,” and similar expressions are used herein for purposes of illustration only.
  • a new type of disposable hemostatic clip includes a hemostatic clip body 1.
  • the hemostatic clip body 1 consists of a fixed hook 5, an upper clamping arm 2, a curved root 8, and a lower clamping arm. 9.
  • the restoring device includes a mounting groove 11.
  • the mounting groove 11 is set inside the hemostatic clip body 1.
  • the mounting grooves 11 are respectively located on the upper Inside the clamping arm 2, the bent root 8 and the lower clamping arm 9, the inside of the installation groove 11 is provided with a recovery strip 10, and the recovery strip 10 is made of memory metal or non-metal material, and adopts memory metal or non-metal
  • the recovery strip 10 of the material is stuffed into the inside of the upper clamping arm 2, the curved root 8 and the lower clamping arm 9 to replace the yielding part in the curved root of the original hemostatic clip, and the recovery strip 10 of memory metal or non-metallic material It has strong yield memory, which can ensure that the elastic force between the upper clamping arm 2 and the lower clamping arm 9 remains unchanged when the hemostatic clip body 1 is continuously closed and opened.
  • the curved root 8 is provided with an arc-shaped groove 7 that runs through it.
  • the deformation of the curved root 8 in the hemostatic clip body 1 will cause the arc-shaped groove 7 to deform. , and then protect the curved root 8 with stronger recovery.
  • a plurality of engaging protrusions 3 fixedly connected between the opposite side walls of the upper clamping arm 2 and the lower clamping arm 9, and the plurality of engaging protrusions 3 are interlaced with each other, and the upper clamping When the arm 2 and the lower clamping arm 9 are attached to each other, a plurality of staggered engaging protrusions 3 can clamp the blood vessel clamped between the upper clamping arm 2 and the lower clamping arm 9 more firmly.
  • the hemostatic clip body 1 is made of polytetrafluoroethylene material, which has good biocompatibility and blood adaptability, has no damage to human physiology, and has no adverse reactions when implanted in the body.
  • the fixed hook 5, the upper clamping arm 2, the curved root 8, the lower clamping arm 9, the limit block 4, the fixed cylindrical block 6 and the plurality of engaging protrusions 3 are integrally formed.
  • the working principle of the present invention is: the inside of the installation groove 11 is provided with a recovery strip 10, the recovery strip 10 is made of memory metal or non-metal material, and the recovery strip 10 of memory metal or non-metal material is inserted into the upper clip
  • the inside of the holding arm 2, the bending root 8 and the lower clamping arm 9 replaces the yielding part in the bending root of the original hemostatic clip, and the recovery strip 10 of memory metal or non-metallic material has extremely strong yield memory, which can ensure When the hemostatic clip body 1 is continuously closed and opened, the elastic strength between the upper clamping arm 2 and the lower clamping arm 9 remains unchanged.
  • the recovery strip 10 is fixedly connected to the outer wall of the hemostatic clip body 1, for example, glued to the curved outer wall of the hemostatic clip body 1 by colloid, and the hemostatic clip body 1 is directly modified, which improves the resources.
  • the utilization rate of recovery strip 10 adopts memory metal or non-metal material, and memory metal or non-metal material can greatly increase the elastic recovery strength between the upper clamping arm 2 and the lower clamping arm 9.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Reproductive Health (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

一种新型一次性止血夹，包括止血夹本体（1），止血夹本体（1）由固定挂钩（5）、上夹持臂（2）、弯曲根部（8）、下夹持臂（9）、限位块（4）和固定圆柱块（6），止血夹本体（1）内部设有回复装置。该止血夹采用记忆性金属或非金属材料的回复长条（10）塞入上夹持臂（2）、弯曲根部（8）和下夹持臂（9）的内部，代替原本止血夹的弯曲根部（8）中的屈服部分，记忆性金属或非金属材料的回复长条（10）具有极强的屈服记忆性，可保证止血夹本体（1）在不断的闭拢与打开时，上夹持臂（2）与下夹持臂（9）之间的弹性力度依旧保持不变，该装置设计合理，构思器巧妙，采用记忆性金属或非金属材料代替原本止血夹的弯曲根部（8）中的屈服部分，大大增加上夹持臂（2）与下夹持臂（9）之间的弹性恢复力度，避免了塑料本身存在组织缺陷，保障了止血夹的弹性恢复效果。

Description

一种新型一次性止血夹 技术领域
本发明涉及止血夹技术领域，尤其涉及一种新型一次性止血夹。
 背景技术
止血夹一般是由塑胶制品制成的，是在腔镜下腹腔手术中用于标记、止血或闭合管状组织结构的闭合装置，该闭合装置可通过一种管状的输送器械，根据需要输入到腹腔 内，该闭合装置会被强制闭拢存放在输送器械内，之后释放出来进行闭合管状组织。
 技术问题
但现有技术中，由于止血夹的弯曲根部采用塑料，所述止血夹的弯曲根部在不断的闭拢与打开时，弯曲根部会出现屈服疲劳问题，即使有很多改性材料，但不可避免塑料本 身存在组织缺陷，轻者会使得止血夹开口过小，无法套合在管状组织上，严重会出现止血夹 直接从输送器械脱落，这样会使得输送器械失效，手术受阻，存在很大的风险。
 技术解决方案
本发明提供了一种新型一次性止血夹，以解决上述背景技术中提出的现有技术 中，由于止血夹的弯曲根部采用塑料，所述止血夹的弯曲根部在不断的闭拢与打开时，弯曲 根部会出现屈服疲劳问题，即使有很多改性材料，但不可避免塑料本身存在组织缺陷，轻者 会使得止血夹开口过小，无法套合在管状组织上，严重会出现止血夹直接从输送器械脱落， 这样会使得输送器械失效，手术受阻，存在很大的风险问题。
为了实现上述目的，本发明采用了如下技术方案：
一种新型一次性止血夹，包括止血夹本体，所述止血夹本体由固定挂钩、上夹持 臂、弯曲根部、下夹持臂、限位块和固定圆柱块，所述止血夹本体内部设有回复装置。
作为本技术方案的进一步改进方案：所述回复装置包括安装凹槽，所述安装凹槽开设在止血夹本体的内部，所述安装凹槽分别位于上夹持臂、弯曲根部和下夹持臂的内部， 所述安装凹槽的内部设有回复长条。
作为本技术方案的进一步改进方案：所述弯曲根部处开设有呈贯穿设置的弧形凹 槽。
作为本技术方案的进一步改进方案：所述上夹持臂和下夹持臂相对的侧壁之间固定连接均有多个咬合凸块，多个所述咬合凸块呈相互交错设置。
作为本技术方案的进一步改进方案：所述止血夹本体采用聚四氟乙烯材质。
作为本技术方案的进一步改进方案：所述固定挂钩、上夹持臂、弯曲根部、下夹持 臂、限位块、固定圆柱块和多个咬合凸块采用一体成型设置。
作为本技术方案的进一步改进方案：所述回复长条固定连接在止血夹本体的外侧壁上。
作为本技术方案的进一步改进方案 ：所述回复长条采用记忆性金属或非金属材料。
 有益效果
与现有技术相比 ，本发明的有益效果是：
采用记忆性金属或非金属材料的回复长条塞入上夹持臂、弯曲根部和下夹持臂的内部，代替原本止血夹的弯曲根部中的屈服部分，记忆性金属或非金属材料的回复长条具有极强的屈服记忆性，可保证止血夹本体在不断的闭拢与打开时，上夹持臂与下夹持臂之间的弹性力度依旧保持不变，该装置设计合理，构思器巧妙，采用记忆性金属或非金属材料代替原本止血夹的弯曲根部中的屈服部分，大大增加上夹持臂与下夹持臂之间的弹性恢复力度，避免了塑料本身存在组织缺陷，保障了止血夹的弹性恢复效果。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，并可依照说明书的内容予以实施，以下以本发明的较佳实施例并配合附图详细说明如后。本发明的具体实施方式由以下实施例及其附图详细给出。
 附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。
在附图中：  
图1为本发明中实施例一提出的一种新型一次性止血夹的立体结构示意图；
 图2为本发明中实施例一提出的一种新型一次性止血夹的正面立体结构示意图；
 图3为本发明中实施例一提出的一种新型一次性止血夹的正面剖视结构示意图；
 图4为图3中A的局部放大结构示意图；
 图5为本发明中实施例二提出的一种新型一次性止血夹的正面结构示意图。
附图中，各标号所代表的部件列表如下：
1止血夹本体、2上夹持臂、3咬合凸块、4限位块、5固定挂钩、6固定圆柱块、7弧形凹 槽、8弯曲根部、9下夹持臂、10回复长条、11安装凹槽。
 本发明的实施方式
以下结合附图对本发明的原理和特征进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。在下列段落中参照附图以举例方式更具体地描述本发明。根据下面说明和权利要求书，本发明的优点和特征将更清楚。需说明的是，附图均采用非常简化的形式且均使用非精准的比例，仅用以方便、明晰地辅助说明本发明实施例的目的。
需要说明的是，当组件被称为“固定于”另一个组件，它可以直接在另一个组件上 或者也可以存在居中的组件。当一个组件被认为是“连接”另一个组件，它可以是直接连接 到另一个组件或者可能同时存在居中组件。当一个组件被认为是“设置于”另一个组件，它 可以是直接设置在另一个组件上或者可能同时存在居中组件。本文所使用的术语“垂直 的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
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发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/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。
 实施例一
请参阅图1～4，本发明实施例中，一种新型一次性止血夹，包括止血夹本体1，止血夹本体1由固定挂钩5、上夹持臂2、弯曲根部8、下夹持臂9、限位块4和固定圆柱块6，止血夹本体1内部设有回复装置，回复装置包括安装凹槽11，安装凹槽11开设在止血夹本体1的内 部，安装凹槽11分别位于上夹持臂2、弯曲根部8和下夹持臂9的内部，安装凹槽11的内部设有回复长条10，回复长条10采用记忆性金属或非金属材料，采用记忆性金属或非金属材料的回复长条10塞入上夹持臂2、弯曲根部8和下夹持臂9的内部，代替原本止血夹的弯曲根部中的屈服部分，记忆性金属或非金属材料的回复长条10具有极强的屈服记忆性，可保证止血夹本体1在不断的闭拢与打开时，上夹持臂2与下夹持臂9之间的弹性力度依旧保持不变。
请参阅图2，弯曲根部8处开设有呈贯穿设置的弧形凹槽7，当止血夹本体1弯曲时，止血夹本体1中的弯曲根部8受到的形变将使得弧形凹槽7产生形变，进而保护弯曲根部8恢复性更强。
请参阅图1和图2，上夹持臂2和下夹持臂9相对的侧壁之间固定连接均有多个咬合 凸块3，多个咬合凸块3呈相互交错设置，上夹持臂2和下夹持臂9相互贴合时，多个交错设置 的咬合凸块3可将夹持在上夹持臂2和下夹持臂9之间的血管夹持更加牢固。
请参阅图1，止血夹本体1采用聚四氟乙烯材质，聚四氟乙烯材质有良好的生物相 溶性、血适应性，对人体生理无损害，植入体内无不良反应。
请参阅图1，固定挂钩5、上夹持臂2、弯曲根部8、下夹持臂9、限位块4、固定圆柱块6 和多个咬合凸块3采用一体成型设置。
本发明的工作原理是：安装凹槽11的内部设有回复长条10，回复长条10采用记忆 性金属或非金属材料，采用记忆性金属或非金属材料的回复长条10塞入上夹持臂2、弯曲根部8和下夹持臂9的内部，代替原本止血夹的弯曲根部中的屈服部分，记忆性金属或非金属材料的回复长条10具有极强的屈服记忆性，可保证止血夹本体1在不断的闭拢与打开时，上夹持臂2与下夹持臂9之间的弹性力度依旧保持不变，当将血管放置在上夹持臂2与下夹持臂9之间时，通过限位块4和固定圆柱块6将上夹持臂2与下夹持臂相互贴合，如图2，使得固 定圆柱块6卡进固定挂钩5内，即可将血管夹持住，同时多个交错设置的咬合凸块3可将夹持在上夹持臂2和下夹持臂9之间的血管夹持更加牢固。
实施例二
请参阅图5，回复长条10固定连接在止血夹本体1的外侧壁上，例如通过胶体粘接 在止血夹本体1的弧形外侧壁上，止血夹本体1上直接进行改造，提高了资源的利用率，回复长条10采用记忆性金属或非金属材料，记忆性金属或非金属材料可大大增加上夹持臂2与下夹持臂9之间的弹性恢复力度。
以上所述，仅为本发明的较佳实施例而已 ，并非对本发明作任何形式上的限制；凡 本行业的普通技术人员均可按说明书附图所示和以上所述而顺畅地实施本发明；但是,凡熟悉本专业的技术人员在不脱离本发明技术方案范围内，利用以上所揭示的技术内容而做出的些许更动、修饰与演变的等同变化，均为本发明的等效实施例；同时 ,凡依据本发明的实质技术对以上实施例所作的任何等同变化的更动、修饰与演变等，均仍属于本发明的技术方案的保护范围之内。

Claims (8)

  1. 一种新型一次性止血夹，包括止血夹本体(1)，其特征在于，所述止血夹本体(1)由固定挂钩(5)、上夹持臂(2)、弯曲根部(8)、下夹持臂(9)、限位块(4)和固定圆柱块(6)，所述止血夹本体(1)内部设有回复装置。
  2. 根据权利要求1所述的一种新型一次性止血夹，其特征在于，所述回复装置包括安装凹槽(11)，所述安装凹槽(11)开设在止血夹本体(1)的内部，所述安装凹槽(11)分别位于上夹持臂(2)、弯曲根部(8) 和下夹持臂(9)的内部，所述安装凹槽(11)的内部设有回复长条(10)。
  3. 根据权利要求1所述的一种新型一次性止血夹，其特征在于，所述弯曲根部(8)处开设有呈贯穿设置的弧形凹槽(7)。
  4. 根据权利要求1所述的一种新型一次性止血夹，其特征在于，所述上夹持臂(2)和下夹持臂(9)相对的侧壁之间固定连接均有多个咬合凸块(3)，多个所述咬合凸块(3)呈相互交错设置。
  5. 根据权利要求1所述的一种新型一次性止血夹，其特征在于，所述止血夹本体(1)采用聚四氟乙烯材质。
  6. 根据权利要求1和4所述的一种新型一次性止血夹，其特征在于，所述固定挂钩(5)、上夹持臂(2)、弯曲根部(8)、下夹持臂(9)、限位块(4)、固定圆柱块(6)和多个咬合凸块(3)采用一体成型设置。
  7. 根据权利要求1和2所述的一种新型一次性止血夹，其特征在于，所述回复长条(10)固定连接在止血夹本体(1)的外侧壁上。
  8. 根据权利要求2或7所述的一种新型一次性止血夹，其特征在于，所述回复长条(10)采用记忆性金属或非金属材料。
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