WO2013182025A1 - 碎吸器 - Google Patents

碎吸器 Download PDF

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Publication number
WO2013182025A1
WO2013182025A1 PCT/CN2013/076657 CN2013076657W WO2013182025A1 WO 2013182025 A1 WO2013182025 A1 WO 2013182025A1 CN 2013076657 W CN2013076657 W CN 2013076657W WO 2013182025 A1 WO2013182025 A1 WO 2013182025A1
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WO
WIPO (PCT)
Prior art keywords
liquid
probe
chamber
inner tube
housing
Prior art date
Application number
PCT/CN2013/076657
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English (en)
French (fr)
Inventor
李广成
牟雪梅
屈铁男
陈锡起
翟萍
邵竹蕾
韩明辉
丁飞
薛伟
刘玉含
张文勇
刘健
Original Assignee
Li Guangcheng
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Li Guangcheng filed Critical Li Guangcheng
Publication of WO2013182025A1 publication Critical patent/WO2013182025A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/77—Suction-irrigation systems

Definitions

  • the invention relates to a hematoma remover, in particular a squirt of a hematoma remover.
  • a hematoma remover is usually used clinically.
  • the hematoma remover described above includes a squirt and a balanced lavage device connected to the squirt.
  • the hematoma is cut into small pieces by a broken tip on the squirt, and then the fine hematoma fragments are excreted through the liquid flow.
  • the low pressure chamber and the high pressure chamber of the current shredder are arranged in the axial direction.
  • the object of the present invention is to solve the technical deficiencies of prior art septic cleaners for hematoma evacuators and to provide a squirt.
  • a shredder includes a housing, a probe outer tube fixed to the front end of the housing, and a probe inner tube located inside the outer tube of the probe, the probe inner tube extending all the way to the rear end of the housing, and the front end of the probe inner tube is connected a cutter head, a rear end of the inner tube of the probe is connected with a drive shaft capable of rotating the inner tube of the probe, and the drive shaft is connected with a driving device, and a liquid inlet and a liquid outlet are arranged on the rear wall of the casing;
  • a cloth liquid chamber extending in the axial direction is disposed inside the casing, and the liquid inlet port is connected to the liquid liquid chamber, and a section of the inner tube of the probe and a section of the transmission shaft are located in the liquid chamber of the cloth, and the inner tube of the probe and the transmission shaft are respectively
  • the inner wall of the liquid chamber of the cloth is dynamically sealed and connected with a liquid inlet hole in the inner tube wall of the probe located in the liquid chamber of the cloth, and
  • a liquid addition and volume reduction port is further disposed on the rear casing wall of the casing, and the liquid outlet, the liquid addition volume reduction port and the liquid inlet are sequentially arranged side by side.
  • the cross-sectional structure of the main portion of the front liquid return chamber is circular, and the cross-sectional structure of the main portion of the rear liquid return chamber is approximately semi-annular.
  • the rear liquid return chamber is located in the upper middle portion of the housing.
  • the cross-sectional area of the liquid chamber is smaller than the cross-sectional area of the back liquid return chamber.
  • the center line of the cloth liquid chamber is away from the center line of the back liquid return chamber.
  • a low pressure chamber composed of a rear liquid return chamber and a front liquid return chamber, and a liquid chamber formed by the liquid chamber and the inner tube of the probe
  • the high pressure chambers of the specification are arranged in parallel in the axial direction, and the axial direction of the low pressure chamber and the high pressure chamber are extended, that is, the axial length of each cavity is increased, the lumen is narrowed, and the air bubbles can be taken out when the working fluid flows.
  • liquid ports such as a liquid inlet and a liquid outlet are sequentially arranged side by side, which makes it easier to hold the casing.
  • FIG. 1 is a schematic view showing the structure of an embodiment of the present invention.
  • Fig. 2 mainly shows the outline portion of the mode of Fig. 1.
  • Fig. 3 shows an exploded state of the mode of Fig. 1.
  • Fig. 4 shows a cross-sectional structure of an embodiment of a housing portion in the present invention.
  • Fig. 5 shows a cross-sectional structure of another embodiment of the housing portion of the present invention.
  • a shredder includes a housing 1, a probe outer tube 3 fixed to the front end of the housing, and a probe inner tube 2 positioned inside the outer tube of the probe.
  • the inner tube of the probe extends to the rear end of the casing, and the front end of the inner tube of the probe is connected with a cutter head.
  • the rear end of the inner tube of the probe is connected with a drive shaft 4 capable of rotating the inner tube of the probe, and the drive shaft is connected with a drive.
  • the device drives the probe inner tube to rotate by the driving device through the transmission shaft, and the cutter inner tube carries the cutter head to rotate.
  • a liquid inlet port 5 and a liquid outlet port 6 are disposed on the rear casing wall of the casing, and a cloth liquid chamber 7 extending in the axial direction is disposed inside the casing, and the liquid inlet port is connected to the cloth liquid chamber, the probe A section of the inner tube and a section of the drive shaft are located in the liquid chamber of the cloth, and the inner tube of the probe and the drive shaft are respectively mechanically and sealingly connected with the end wall of the liquid chamber of the cloth, and are disposed on the wall of the inner tube of the probe located in the liquid chamber of the cloth.
  • the lumen 9 of the probe inner tube is an inlet chamber, and the cloth liquid chamber and the probe inner tube lumen form a high pressure chamber; between the axial chamber wall of the cloth liquid chamber and the inner wall of the housing
  • the rear liquid returning chamber 10 is provided, and the front liquid returning chamber 11 is between the outer tube of the probe and the inner tube of the probe, the liquid returning chamber is connected to the back portion of the front liquid returning chamber, and the liquid returning chamber is connected to the back liquid returning chamber.
  • the back liquid return chamber and the front liquid return chamber constitute a low pressure chamber.
  • a liquid addition and volume reduction port 12 is further disposed on the rear wall of the casing, and the liquid addition and volume reduction port 12 can communicate with the high pressure chamber or the low pressure chamber, the liquid outlet, the liquid addition volume reduction port, and
  • the inlet ports are arranged side by side in sequence.
  • the above-mentioned liquid filling and reducing port is used for connecting the pipe outside the shredder and the syringe, and is used for pushing a small amount of liquid when the shredder is inserted and pulled out of the brain tissue to avoid damage to the brain tissue, and can increase or decrease the working fluid in the system according to the surgical requirement. Total; closed when working to remove the hematoma.
  • the rear liquid returning chamber is located in the upper middle portion of the casing; the main body portion of the front liquid returning chamber has a circular cross section, and the main body portion of the rear liquid returning chamber has a sectional structure similar to a semicircular shape. , also refers to the semi-ring.
  • the advantage of this design is that the low-pressure cavity can be further optimized, which can better overcome the problem that the cross-sectional structure of the second half cavity of the low-pressure cavity is easy to be trapped in the upper part of the cavity, which is disadvantageous to The drawbacks of exhausting are more conducive to further enhancing the exhaust effect.
  • the cross section should be as small as possible and the cross section of the back section should be as large as possible.
  • the better design is that the center (line) of the cloth liquid chamber is away from the center (line) of the back liquid return chamber, and the back section is returned without changing the outer diameter and does not hinder the rotation of the probe inner tube.
  • the liquid chamber has the largest cross-sectional area.
  • the housing may be a single component or a combination of a set of components.
  • the housing can be designed as a tubular structure of any shape, but a more preferred design is a tubular body having a circular cross section and being as thin as possible to meet the needs of the retaining clip.
  • the working fluid enters the liquid chamber from the high pressure pipe outside the shredder through the liquid inlet; enters the lumen of the probe inner tube through the liquid inlet hole in the inner tube of the probe; flows forward into the broken tip portion, passes through the hematoma cavity, The circulation is returned to the front liquid return chamber; and the back liquid return chamber flows backward into the back liquid return chamber. Finally, through the liquid outlet, return to the low pressure pipe outside the crusher.

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

Abstract

本发明公开了一种碎吸器，包括壳体、探针外管和探针内管，探针内管一直延伸到壳体后端，探针内管的前端连接有刀头，探针内管的后端连接有传动轴，传动轴连接有驱动装置，在壳体的后段壳壁上设置有进液口和出液口；其特征是在壳体内部设置有布液腔，进液口接通布液腔，探针内管、传动轴的一段位于布液腔内，两者分别与布液腔的一端腔壁动密封连接，在探针内管管壁上设置有进液孔，其管腔为进液腔，在布液腔的腔壁与壳体的内壁之间设置有后段回液腔，在探针外管与内管之间为前端回液腔，前、后段回液腔接通，出液口接通后段回液腔。本发明增加了各腔体的轴向长度，不仅有利于排气，进液口和出液口靠近后变得美观利于装配，而且结构也得以简化。

Description

说 明 书 碎吸器 技术领域
本发明与血肿清除器有关， 尤其是血肿清除器的碎吸器。
背景技术
目前在脑出血治疗中， 临床上通常使用血肿清除器。 上述血肿清除器包括碎吸器和与碎 吸器相连的平衡灌洗装置。 通过碎吸器上的碎吸头， 将血肿切割成细小的碎块， 然后通过液 体流动将细小血肿碎块排出体外。 目前的碎吸器的低压腔和高压腔沿轴向前后排列， 虽然可 以实现平衡灌洗功能， 但不利于排气， 并且结构复杂， 管道连接口分散， 不方便夹持。
由此可见， 现有技术中的血肿清除器还有待于更进一步的改进。
发明内容
本发明的任务在于解决现有技术中血肿清除器的碎吸器存在的技术缺陷， 提供一种碎吸 器。
其技术解决方案是：
一种碎吸器， 包括壳体、 固定在壳体前端的探针外管和位于探针外管内的探针内管， 探 针内管一直延伸到壳体后端， 探针内管的前端连接有刀头， 探针内管的后端连接有能带动探 针内管转动的传动轴， 传动轴连接有驱动装置，在壳体的后段壳壁上设置有进液口和出液口； 在壳体内部设置有一段沿轴线方向伸展的布液腔， 进液口接通布液腔， 探针内管的一段与传 动轴的一段位于布液腔内， 探针内管与传动轴分别与布液腔的一端腔壁动密封连接， 在位于 布液腔内的探针内管管壁上设置有进液孔， 探针内管的管腔为进液腔， 在布液腔的轴向腔壁 与壳体的内壁之间设置有后段回液腔， 在探针外管与探针内管之间为前端回液腔， 前段回液 腔接通后段回液腔， 出液口接通后段回液腔。
在上述壳体的后段壳壁上还设置有加液减容口， 出液口、 加液减容口和进液口依次并排 设置在一起。
上述前段回液腔的主体部分断面结构为圆环形， 后段回液腔的主体部分断面结构近似于 半环形。
上述后段回液腔位于壳体内中上部。
上述布液腔的横截面积小于后段回液腔的横截面积。
上述布液腔的中心线远离后段回液腔的中心线。
本发明具有以下有益技术效果：
本发明中， 由后段回液腔与前段回液腔构成的低压腔， 和由布液腔与探针内管管腔构成 说 明 书 的高压腔沿轴向平行排列， 并使低压腔和高压腔轴向得以延长， 即增加了各腔体的轴向长度， 管腔变窄， 在工作液流动时即可将气泡带出， 不仅有利于排气， 而且结构也得以简化。 此外， 诸如进液口、 出液口等液口依次并排设置有， 更加方便夹持壳体。
附图说明
下面结合附图与具体实施方式对本发明作更进一步说明：
图 1为本发明的一种实施方式的结构原理示意图。
图 2主要示出了图 1方式的外形部分。
图 3示出了图 1方式的一种分解状态。
图 4示出了本发明中壳体部位的一种实施方式的剖示结构。
图 5示出了本发明中壳体部位的另一种实施方式的剖示结构。
具体实施方式
结合图 1、 图 2与图 3， 一种碎吸器， 包括壳体 1、 固定在壳体前端的探针外管 3和位于 探针外管内的探针内管 2。 上述探针内管一直延伸到壳体后端， 探针内管的前端连接有刀头， 探针内管的后端连接有能带动探针内管转动的传动轴 4， 传动轴连接有驱动装置， 由驱动装 置通过传动轴带动探针内管旋转， 并由探针内管携带刀头转动。 在上述壳体的后段壳壁上设 置有进液口 5和出液口 6，在壳体内部设置有一段沿轴线方向伸展的布液腔 7，进液口接通布 液腔， 探针内管的一段与传动轴的一段位于布液腔内， 探针内管与传动轴分别与布液腔的一 端腔壁动密封连接， 在位于布液腔内的探针内管管壁上设置有进液孔 8， 探针内管的管腔 9 为进液腔， 上述布液腔与探针内管管腔构成高压腔； 在布液腔的轴向腔壁与壳体的内壁之间 设置有后段回液腔 10，在探针外管与探针内管之间为前端回液腔 11， 前段回液腔接通后段回 液腔， 出液口接通后段回液腔， 上述后段回液腔与前段回液腔构成低压腔。
作为一种优选设计：在上述壳体的后段壳壁上还设置有加液减容口 12，加液减容口 12可 连通高压腔或低压腔， 出液口、 加液减容口和进液口依次并排设置在一起。 上述加液减容口 用于连接碎吸器外的管道以及注射器， 在碎吸器插入和拔出脑组织时用于推送少量液体， 避 免损伤脑组织， 并可根据手术要求增加或者减少系统内工作液总量； 在清除血肿工作时关闭。
作为一种优选设计： 参看图 4， 上述后段回液腔位于壳体内中上部； 前段回液腔的主体 部分断面结构为圆环形， 后段回液腔的主体部分断面结构近似于半环形， 也指半环形。 这样 设计的好处是能够使低压腔得到进一步的优化， 能够更好地克服现有技术中低压腔后半段腔 体断面结构为圆环形所带来的容易在腔体上部滞留气体、 不利于排气的弊端， 更有利于进一 步增强排气效果。
作为一种优选设计： 参看图 5， 在满足探针内管和探针外管的流量要求下， 布液腔的横 说 明 书
截面应尽可能小而后段回液腔的横截面应尽可能大。 在此原则下， 更优设计是布液腔的中心 (线）远离后段回液腔的中心（线）， 在不改变外径并不妨碍探针内管转动的情况下， 使后段 回液腔的截面积最大。
上述方式中， 壳体可以为单独一个零件， 也可以是一组零件的组合体。 壳体可以设计为 任何外形的管状结构， 但更优设计是横截面为圆形的管状体， 且外形尽可能细以满足固定夹 持需要。
本发明的工作原理大致是：
工作液体从碎吸器外的高压管道经由进液口进入布液腔； 通过探针内管上的进液孔进入 探针内管的管腔； 向前流动进入碎吸头部分， 经过血肿腔， 循环回流到前段回液腔； 并由前 段回液腔向后流动进入后段回液腔。 最后通过出液口， 回到碎吸器外的低压管道内。
上述方式中未述及的有关技术内容采取或借鉴已有技术即可实现。
需要说明的是， 在本说明书的教导下本领域技术人员还可以作出这样或那样的容易变化 方式， 诸如等同方式， 或明显变形方式。 上述的变化方式均应在本发明的保护范围之内

Claims

权 利 要 求 书
1、 一种碎吸器， 包括壳体、 固定在壳体前端的探针外管和位于探针外管内的探针内管， 探针 内管一直延伸到壳体后端， 探针内管的前端连接有刀头， 探针内管的后端连接有能带动探针 内管转动的传动轴， 传动轴连接有驱动装置， 在壳体的后段壳壁上设置有进液口和出液口； 其特征在于： 在壳体内部设置有一段沿轴线方向伸展的布液腔， 进液口接通布液腔， 探针内 管的一段与传动轴的一段位于布液腔内， 探针内管与传动轴分别与布液腔的一端腔壁动密封 连接， 在位于布液腔内的探针内管管壁上设置有进液孔， 探针内管的管腔为进液腔， 在布液 腔的轴向腔壁与壳体的内壁之间设置有后段回液腔， 在探针外管与探针内管之间为前端回液 腔， 前段回液腔接通后段回液腔， 出液口接通后段回液腔。
2、根据权利要求 1所述的碎吸器， 其特征在于： 在所述壳体的后段壳壁上还设置有加液减容 口， 出液口、 加液减容口和进液口依次并排设置在一起。
3、根据权利要求 1所述的碎吸器， 其特征在于： 所述前段回液腔的主体部分断面结构为圆环 形， 后段回液腔的主体部分断面结构近似于半环形。
4、 根据权利要求 3所述的碎吸器， 其特征在于： 所述后段回液腔位于壳体内中上部。
5、根据权利要求 4所述的碎吸器， 其特征在于： 所述布液腔的横截面积小于后段回液腔的横 截面积。
6、根据权利要求 5所述的碎吸器， 其特征在于： 所述布液腔的中心线远离后段回液腔的中心 线。
PCT/CN2013/076657 2012-06-08 2013-06-03 碎吸器 WO2013182025A1 (zh)

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CN2012101872643 2012-06-08

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CN102697537B (zh) * 2012-06-08 2014-02-26 李广成 碎吸器
CN108371553B (zh) * 2017-10-16 2023-12-15 扬州大学附属医院（扬州市第一人民医院） 一种乳房脓肿的治疗装置

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