WO2021243601A1 - 一种适配器、针槽板组件、穿刺支架及活检装置 - Google Patents

一种适配器、针槽板组件、穿刺支架及活检装置 Download PDF

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Publication number
WO2021243601A1
WO2021243601A1 PCT/CN2020/094142 CN2020094142W WO2021243601A1 WO 2021243601 A1 WO2021243601 A1 WO 2021243601A1 CN 2020094142 W CN2020094142 W CN 2020094142W WO 2021243601 A1 WO2021243601 A1 WO 2021243601A1
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Prior art keywords
needle
needle groove
groove plate
puncture
adapter
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PCT/CN2020/094142
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English (en)
French (fr)
Inventor
王沁
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苏州市立普医疗科技有限公司
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Priority to PCT/CN2020/094142 priority Critical patent/WO2021243601A1/zh
Publication of WO2021243601A1 publication Critical patent/WO2021243601A1/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
    • A61B17/34—Trocars; Puncturing needles

Definitions

  • the invention relates to the technical field of medical supplies, in particular to an adapter, a needle groove plate assembly, a puncture support and a biopsy device.
  • prostate biopsy is generally used for the detection and investigation of prostate diseases.
  • ultrasound biopsy a small amount of tissue samples need to be taken from different parts of the prostate to achieve the purpose of clear diagnosis.
  • the biopsy is less traumatic and has a high accuracy rate. It has a wide range of clinical applications.
  • Commonly used biopsy sampling methods are transrectal route and transperineal route; among them, transrectal route has some disadvantages, mainly including: 1. Ultrasound probe and puncture stent reach the position of prostate through rectal entrance, and bacteria in the rectum can easily cause high Risk of infection; 2. There is a certain blind spot due to the limited puncture position. Therefore, transperineal puncture is the current mainstream method of prostate biopsy, which has the advantages of aseptic operation, low risk of infection, and comprehensive sampling.
  • the present invention proposes an adapter, a needle groove plate assembly, a puncture support and a biopsy device, which have the advantages of simple structure, low cost, flexible and convenient operation, and the ability to fix different types of puncture needles and puncture supports during surgery.
  • an adapter has a hollow structure and includes a coaxial and sequentially connected needle inlet portion, a connecting portion, and a mating portion; the mating portion is used to insert a needle groove
  • the outer surface of the mating part is cylindrical; the inner surface of the needle inlet part is cylindrical or conical; the inner surface of the connecting part is cylindrical or conical; The inner surface is cylindrical or conical.
  • the outer surface of the needle entry part is a cylindrical surface or a conical surface
  • the outer surface of the connecting part is a cylindrical surface or a conical surface
  • the cylindrical surface is a cylindrical surface
  • the conical surface is a conical surface
  • the needle insertion part, the connecting part and the matching part are all made of elastic material.
  • a needle groove plate assembly including a needle groove plate and an adapter, wherein the needle groove plate includes a needle groove arm and a clamping assembly, and a plurality of parallel groove arms are provided on the needle groove arm. Needle hole, a plurality of needle holes are distributed along the height direction of the needle groove arm, and pass through the needle groove arm along the width direction of the needle groove arm; the clamping component is located at the bottom of the needle groove arm and is used to connect the puncture bracket; the matching part At least partially inserted into the needle hole.
  • a plurality of beams are arranged in parallel along the height direction of the needle groove arm, and the needle hole is a gap between the plurality of beams.
  • the width of the entrance into the piercing hole from the radial direction of the piercing hole is smaller than the inner diameter of the piercing hole.
  • the clamping assembly includes a protruding structure and two plug-in arms, wherein: the two plug-in arms are arranged on the edge of the bottom of the needle groove arm along the width direction of the needle groove arm;
  • the protruding structure is arranged on the bottom surface of the needle groove arm and is located between the two plug-in arms, and the protruding structure has a third inclined surface and a third straight end surface.
  • a puncture support including the needle groove plate assembly.
  • a biopsy device including an ultrasonic probe, a puncture support and a biopsy needle, and the puncture support is provided with the needle groove plate assembly.
  • the puncture needle or the coaxial needle is inserted through the needle part, the connecting part and the matching part in sequence, and the puncture needle or the coaxial needle protruding from the matching part is placed on the needle groove plate. In the puncture hole, the puncture needle or coaxial needle is fixed on the puncture support.
  • Figure 1 is a schematic diagram of the structure of the biopsy device provided by the present invention.
  • Figure 2 is a schematic diagram of the structure of the adapter provided by the present invention.
  • Figure 3 is a schematic cross-sectional view of the adapter provided by the present invention.
  • Figure 4 is a schematic diagram of the structure of a needle groove plate with a half-pack of needle holes
  • FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective
  • Figure 6 is a schematic diagram of the structure of the bottom of the needle groove plate
  • Figure 7 is a schematic diagram of the structure of a needle groove plate with a full package of needle holes
  • FIG. 8 is a schematic view of the structure of FIG. 7 from another perspective
  • Figure 9 is a schematic diagram of the structure of the main part
  • Figure 10 is a schematic diagram of the structure of the mating part
  • Figure 11 is a structural diagram of the top buckle of the mating part
  • Figure 12 is a schematic diagram of the bottom protrusion of the mating part
  • Figure 13 is a schematic diagram of the structure of the main body part and the mating part when assembled
  • Figure 14 is a schematic diagram of the structure of the main body part and the mating part after being assembled.
  • FIG 1 is a schematic structural diagram of a biopsy device provided by an embodiment of the present invention.
  • the biopsy device provided by the present invention includes a puncture support 4, a puncture needle 2, an ultrasound probe 3, and a needle is provided on the puncture support 4 Slot plate 5;
  • the puncture needle 2 penetrates the adapter 1, and the part of the puncture needle 2 extending out of the adapter 1 is placed in the needle hole of the needle groove plate 5.
  • the present invention provides an adapter.
  • the adapter has a hollow structure and includes a needle inlet portion 11, a connecting portion 12, and a matching portion 13 that are coaxially and sequentially connected; the matching portion 13 is used for inserting into the needle hole on the needle groove plate, so
  • the outer surface of the mating portion 13 should be a cylindrical surface.
  • the outer surface shapes of the two can be selected from a cylindrical surface and a tapered surface respectively, preferably a cylindrical surface or a conical surface.
  • the inner surfaces of the needle entry portion 11, the connecting portion 12, and the mating portion 13 can be selected from a cylindrical surface and a conical surface, respectively, preferably a cylindrical surface or a conical surface.
  • the three can be an integral connection or a detachable connection. And these three can be made of elastic materials, such as TPU, EPDM, rubber and other materials.
  • FIG. 2 is a schematic structural diagram of an adapter provided by an embodiment of the present invention.
  • the adapter 1 provided by the present invention includes a needle inlet portion 11, a connecting portion 12, and a matching portion 13, which are sequentially connected.
  • the needle inlet portion 11, The connecting portion 12 and the mating portion 13 penetrate each other, and the needle entry portion 11, the connecting portion 12 and the mating portion 13 are coaxial.
  • the needle entry portion 11, the connecting portion 12 and the mating portion 13 are integrally connected.
  • FIG. 3 is a schematic cross-sectional view of an adapter provided by an embodiment of the present invention.
  • the needle inlet portion 11 is a hollow cylindrical structure, and the inner diameter of the needle inlet portion 11 gradually decreases in the axial direction approaching the connecting portion 12 .
  • the internal channel of the needle inlet 11 may be a conical channel.
  • the tip of the puncture needle is close to the end of the needle inlet 11 with a smaller inner diameter, which is beneficial to fix the puncture needle.
  • the mating portion 13 has a hollow cylindrical structure, and the inner diameter of the mating portion 13 is set to an equal diameter.
  • the mating portion 13 can also be inserted into the needle hole of the needle groove plate 5, thereby facilitating maintaining the coaxial needle or puncture Stability and directionality of the needle.
  • the coaxial needle or the puncture needle and the puncture support are stable and not loose, which is further conducive to the safety and accuracy of the puncture operation.
  • the outer diameter of the matching portion 13 is smaller than the outer diameter of the needle insertion portion 11, and the inner diameter of the matching portion 13 is equal to the minimum inner diameter of the needle insertion portion 11.
  • the first end of the connecting portion 12 is connected to the needle insertion portion 11, and the outer diameter of the first end of the connecting portion 12 is equal to the outer diameter of the needle insertion portion 11.
  • the second end of the connecting part 12 is connected to the mating part 13, and the outer diameter of the second end of the connecting part 12 is equal to the outer diameter of the mating part 13.
  • the inner diameter of the connecting portion 12 is set to be an equal diameter, and the inner diameter of the connecting portion 12 is equal to the inner diameter of the mating portion 13.
  • the inner diameters of the needle inlet portion 11, the connecting portion 12, and the mating portion 13 can all be within a certain size range Floating changes, so although the puncture needles or coaxial needles produced by different manufacturers have slight differences in diameter, they can all be matched with the adapter 1 stably and without shaking. Therefore, during use, the puncture needles or coaxial needles with different sizes produced by different manufacturers can be firmly matched with the adaptor 1, and the adaptor 1 can be firmly matched with the needle path of the puncture support provided on the puncture support, so as to achieve indirectly. Therefore, the puncture needle or the coaxial needle is firmly matched with the puncture support, and the puncture needle or the coaxial needle is not loosened during the needle insertion or withdrawal process.
  • Fig. 4 is a schematic structural diagram of a needle groove plate with a half-pack of needle holes
  • Fig. 5 is a schematic structural diagram from another perspective of Fig. 4
  • Fig. 6 is a schematic structural diagram of the bottom of the needle groove plate
  • the board 5 includes a needle groove arm 51 and two plug arms 52.
  • the needle groove arm 51 is provided with a depth mark 511 and a specification mark 512.
  • the two plug arms 52 are arranged in the needle groove along the width direction of the needle groove arm 51.
  • the bottom surface of the needle groove arm 51 is provided with a protruding structure 520, and the protruding structure 520 is located between the two insertion arms 52.
  • the protruding structure 520 includes a third inclined surface 521 and a third straight end surface 522.
  • the piercing hole 513 is a fully enclosed hole or a semi-enclosed hole, wherein, on the side wall of the needle groove arm 51, a plurality of beams are arranged in parallel along the height direction of the needle groove arm 51, and the plurality of beams The gap between them forms a semi-closed hole; or, the piercing hole 513 is a hole with a complete inner wall that penetrates the needle groove plate 5, and the hole is a fully closed hole.
  • the pin hole 513 in the pin groove plate 5 is a semi-closed hole
  • Fig. 7 is a schematic structural diagram of the pin groove plate with all pin holes
  • Fig. 8 is another view of Fig.
  • FIGS. 7 and 8 Schematic diagram of the structure; the needle hole 513 in the needle groove plate 5 in FIGS. 7 and 8 is a fully enclosed hole.
  • the position of the needle hole 513 corresponds to the position of the depth mark 511 one-to-one, and conforms to the needle insertion route set by the software in the ultrasound machine; the size of the needle hole 513 maintains a one-to-one correspondence with the specification mark 512; the model of the needle hole 513 It can be selected according to actual needs.
  • the puncture needle or biopsy needle can be quickly moved out of the opening in the puncture hole 513 in parallel, and then The ultrasound probe and puncture stent can be quickly removed, and the puncture needle can be left alone in the human body for administration or treatment.
  • FIG. 9 is a schematic structural diagram of the main part;
  • Figure 10 is a schematic structural diagram of the mating part;
  • Figure 11 is a schematic structural diagram of the top buckle of the mating part;
  • Figure 12 is a schematic structural diagram of the bottom of the mating part; as shown in Figures 9-12 ,
  • the needle groove plate 5 can further adopt a split structure, that is, the needle groove arm 51 includes a main body part 53 and a mating part 54.
  • the mating surface of the mating part 54 is provided with a groove 5131, and the mating surface of the main part 53 is mated with the mating part 54 Form a closed hole.
  • the main body part 53 and the mating part 54 are connected by a connecting assembly;
  • the connecting assembly includes a hole 531 at the top of the main part 53 and a buckle 541 at the top of the mating part 54.
  • the buckle 541 includes a first mating surface perpendicular to the mating part 54 Flat plate 5411, the free end of the first flat plate 5411 is connected to the second flat plate 5412 arranged parallel to the first flat plate 5411, the first flat plate 5411 and the second flat plate 5412 form a U-shaped structure, and the free end of the second flat plate 5412 extends to protrude from the mating part 54.
  • the surface is a plane away from the mating surface of the mating portion 54.
  • the upper surface of the second flat plate 5412 is provided with a convex structure 542.
  • the convex structure 542 has a fourth inclined surface 5421 and a fourth straight end surface 5422;
  • the bottom is provided with a docking platform 532 that is docked with the bottom of the mating portion 54, the docking platform 532 is provided with a groove 533, and the bottom of the mating portion 54 is provided with a protrusion 543 for inserting into the groove 533.
  • Figure 13 is a schematic diagram of the structure of the main body part and the mating part assembling
  • Figure 14 is a schematic diagram of the structure of the body part and the mating part assembled; as shown in Figure 13, when the body part 53 and the mating part 54 are assembled, the protrusion 543 is first Insert into the groove 533, move the mating part 54 with the center points of the protrusion 543 and the groove 533, so that the mating surface of the mating part 54 fits the mating surface of the main body part 53, wherein, during the movement, the buckle 541 is inserted into Into the hole 531, the second plate 5412 can be deformed downward (squeeze deformation or manual pressing deformation), and can be automatically reset, so that the protruding structure 542 will automatically reset after passing through the hole 531, and finally the fourth finger end surface 5422 will be pressed against Connecting to the hole 531 forms an assembly structure as shown in FIG.
  • the needle groove plate 5 adopts a split structure, and when used, different types of matching parts 54 can be assembled with the main body part 53 to form different types of needle groove plates 5 to meet different usage requirements in biopsy operations.

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Abstract

一种适配器（1），该适配器（1）为中空结构，包括同轴且依次连接的进针部（11）、连接部（12）以及配合部（13）；配合部（13）用于插入针槽板（5）上的穿针孔（513），配合部（13）的外表面为柱面；进针部（11）的内表面为柱面或锥面；连接部（12）的内表面为柱面或锥面；配合部（13）的外表面为柱面或锥面。还提供一种针槽板组件、穿刺支架（4）和活检装置。

Description

一种适配器、针槽板组件、穿刺支架及活检装置 技术领域
本发明涉及医疗用品技术领域，特别地涉及一种适配器、针槽板组件、穿刺支架及活检装置。
背景技术
随着近年来人们生活方式的改变，男性前列腺发病率呈持续上升趋势，严重威胁人民群众的健康和生活质量，尤其是在老年男性群体中属于一种常见的疾病。
目前，一般采用前列腺活检术对前列腺疾病进行检测排查，在超声活检时，需要在前列腺不同的部位取出少量的样本组织，以达到明确诊断的目的，活检术的创伤小，准确率高，因此得到了临床的广泛应用。常用的活检取样途径为经直肠途径和经会阴途径；其中，经直肠途径存在一些弊端，主要包括：1.超声探头和穿刺支架是通过直肠入口到达前列腺位置，直肠内部的细菌容易造成偏高的感染风险；2.穿刺位置受限存在一定的盲区。因此，经会阴穿刺是目前前列腺活检的主流方法，其具备可无菌操作、感染风险小、取样全面等优点。
虽然ISO和国家标准中都有规定针的直径范围，但是由于同轴针的特殊使用性，厂家基本都没有参考ISO和国家标准的直径范围去做，这就导致了不同品牌的厂家做出来的同轴针针径尺寸都不一样。而穿刺针虽然严格按照ISO和国家标准规定的针径去做，但是由于标准中规定的针径公差范围比较大，也导致其不同品牌之间穿刺针的直径差异较大。而使用过程中，需要同轴针或穿刺针插入到穿刺支架上设有的针道后，保持稳固不得松动，才能满足手术中的方便和安全的要求。这样就导致了穿刺支架和同轴针或穿刺针之间配合的局限性，如果穿刺支架满足了其中一个品牌的同 轴针或穿刺针的适配要求，就无法满足其他品牌同轴针或穿刺针的适配要求。配合的或松或紧，都会影响手术，无法达到手术使用中的满意效果。
发明内容
有鉴于此，本发明提出了一种适配器、针槽板组件、穿刺支架及活检装置，具有结构简单，成本低，操作灵活方便，手术中能够将不同型号的穿刺针与穿刺支架固定等优点。
为实现上述目的，根据本发明的一个方面，提供了一种适配器，该适配器为中空结构，包括同轴且依次连接的进针部、连接部以及配合部；所述配合部用于插入针槽板上的穿针孔，配合部的外表面为柱面；所述进针部的内表面为柱面或锥面；所述连接部的内表面为柱面或锥面；所述配合部的内表面为柱面或锥面。
可选地，所述进针部的外表面为柱面或锥面；所述连接部的外表面为柱面或锥面。
可选地，所述柱面为圆柱面，并且/或者，所述锥面为圆锥面。
可选地，所述进针部、连接部以及配合部均为弹性材质制成。
本发明的另一个方面，还提供了一种针槽板组件，包括针槽板和适配器，其中，所述针槽板包括针槽臂和卡接组件，针槽臂上设有多个平行的穿针孔，多个穿针孔沿针槽臂的高度方向分布，并且沿针槽臂宽度方向贯通针槽臂；卡接组件位于针槽臂的底部，用于连接穿刺支架；所述配合部至少部分插入所述穿针孔内。
可选地，在所述针槽臂的侧壁上，沿所述针槽臂的高度方向平行地设置有多个梁，所述穿针孔为所述多个梁之间的空隙。
可选地，从所述穿针孔的径向进入穿针孔的入口的宽度小于所述穿针孔的内径。
可选地，所述卡接组件包括凸起结构和两个插接臂，其中：两个所述插接臂沿所述针槽臂的宽度方向设置在所述针槽臂的底部的边缘；所述凸起结构设置在所述针槽臂的底面，并且位于两个所述插接臂之间，所述凸起结构具有第三斜面和第三直端面。
本发明的再一个方面，还提供了一种穿刺支架，包括所述的针槽板组件。
本发明的再一个方面，还提供了一种活检装置，包括超声探头、穿刺支架以及活检针，所述穿刺支架上设置有所述的针槽板组件。
根据本发明的技术方案，当需要进行活检手术时，将穿刺针或同轴针依次贯穿进针部、连接部以及配合部，伸出配合部的穿刺针或同轴针置于针槽板的穿针孔内，从而将穿刺针或同轴针固定在穿刺支架上。
附图说明
为了说明而非限制的目的，现在将根据本发明的优选实施例、特别是参考附图来描述本发明，其中：
图1是本发明提供的活检装置的结构示意图；
图2是本发明提供的适配器的结构示意图；
图3是本发明提供的适配器的剖面示意图；
图4为半包穿针孔的针槽板的结构示意图；
图5为图4另一视角的结构示意图；
图6为针槽板底部的结构示意图；
图7为全包穿针孔的针槽板的结构示意图；
图8为图7另一视角的结构示意图；
图9为主体部分的结构示意图；
图10为配合部分的结构示意图；
图11为配合部分顶部卡扣的结构示意图；
图12为配合部分底部凸起的结构示意图；
图13为主体部分和配合部分组装时的结构示意图；
图14为主体部分和配合部分组装后的结构示意图。
附图标记说明
1-适配器；11-进针部；12-连接部；13-配合部；2-穿刺针；3-超声探头；4-穿刺支架；5-针槽板；51-针槽臂；52-插接臂；53-主体部分；54-配合部分；511-深度标识；512-规格标识；513-穿针孔；520-凸起结构；521-第三斜面；522-第三直端面；531-孔；532-对接平台；533-凹槽；541-卡扣；542-凸起结构；543-凸起；5411-第一平板；5412-第二平板；5413-把手；5421-第四斜面；5422-第四直端面；5131-凹槽。
具体实施方式
以下结合附图对本发明的示范性实施例做出说明，其中包括本发明实施例的各种细节以助于理解，应当将它们认为仅仅是示范性的。因此，本领域普通技术人员应当认识到，可以对这里描述的实施例做出各种改变和修改，而不会背离本发明的范围和精神。同样，为了清楚和简明，以下的描述中省略了对公知功能和结构的描述。
图1为本发明实施方式提供的一种活检装置的结构示意图，如图1所示，本发明提供的活检装置，包括穿刺支架4、穿刺针2、超声探头3，穿刺支架4上设置有针槽板5；穿刺针2贯穿适配器1，且穿刺针2伸出适配器1的部分置于针槽板5的穿针孔内。
本发明提供了一种适配器，该适配器为中空结构，包括同轴且依次连接的进针部11、连接部12以及配合部13；配合部13用于插入针槽板上的穿针孔，因此配合部13的外表面应为圆柱面。对于进针部11和连接部12，二者的外表面形状可以分别在柱面和锥面中选取，最好是圆柱面或圆锥面。
进针部11、连接部12以及配合部13的内表面可以分别在柱面、锥面中选取，最好是圆柱面或圆锥面。三者可以为一体式连接，也可以为可拆卸式连接。并且此三者均可为弹性材质制成，例如TPU、EPDM、橡胶等材质。
以下对本发明的较佳实施方式做出说明。
图2为本发明实施方式提供的一种适配器的结构示意图，如图2所示，本发明提供的适配器1包括依次连接的进针部11、连接部12以及配合部13，进针部11、连接部12以及配合部13相互贯通，且进针部11、连接部12以及配合部13同轴。进针部11、连接部12以及配合部13为一体式连接。
图3为本发明实施方式提供的一种适配器的剖面示意图，如图3所示，进针部11为空心圆柱状结构，进针部11的内径沿轴向靠近连接部12的方向逐渐减小。
进针部11的内部通道可以为圆锥面通道，穿刺针穿入该通道时，穿刺针的针尖靠近进针部11内径较小的一端，这样有利于固定穿刺针。
配合部13为空心圆柱状结构，且配合部13的内径设置为等径。当同轴针或穿刺针贯穿适配器1以及针头部插入针槽板5的穿针孔内时，配合部13也可以插入针槽板5的穿针孔内，从而有利于保持同轴针或穿刺针的稳定性和方向性。另外同轴针或穿刺针与穿刺支架配合稳固且无松动，进一步又有利于穿刺手术的安全性和精准性。配合部13的外径小于进针部11的外径，配合部13的内径等于进针部11的最小内径。
连接部12的第一端与进针部11连接，且连接部12的第一端的外径与进针部11的外径相等。连接部12的第二端与配合部13连接，且连接 部12的第二端的外径与配合部13的外径相等。在连接部12上，从连接部12第一端到连接部12第二端的外径逐渐减小。连接部12的内径设置为等径，且连接部12的内径与配合部13的内径相等。
本申请提供的适配器1，由于进针部11、连接部12以及配合部13均为弹性材质制成，进针部11、连接部12以及配合部13的内径尺寸均可以在一定的尺寸范围内浮动变化，因此不同厂家生产穿刺针或者同轴针虽然有直径上的微小差异，但是都可以与适配器1稳固且无晃动的配合。因此使用过程中，不同厂家生产的尺寸有差异的穿刺针或同轴针都可以通过与适配器1稳固配合，适配器1再与穿刺支架上设有的穿刺支架针道稳固配合，这样就间接的达到了穿刺针或同轴针与穿刺支架稳固配合，且进针或退针过程中穿刺针或同轴针无松动的目的。
图4为半包穿针孔的针槽板的结构示意图；图5为图4另一视角的结构示意图；图6为针槽板底部的结构示意图；如图4至图6所示，针槽板5包括针槽臂51和两个插接臂52，其中，针槽臂51上设有深度标识511和规格标识512，两个插接臂52沿针槽臂51的宽度方向设置在针槽臂51的底部的边缘。针槽臂51底面设有凸起结构520，凸起结构520位于两个插接臂52之间。凸起结构520包括第三斜面521和第三直端面522。
本发明实施方式中，穿针孔513为全封闭孔或半封闭孔，其中，在针槽臂51的侧壁上，沿针槽臂51的高度方向平行地设置有多个梁，多个梁之间的空隙形成半封闭孔；或者，穿针孔513为具有完整的内壁的贯穿针槽板5的孔，该孔为全封闭孔。如图4和图5所示，该针槽板5中的穿针孔513为半封闭孔；图7为全包穿针孔的针槽板的结构示意图；图8为图7另一视角的结构示意图；图7和8中的针槽板5中的穿针孔513为全封闭孔。穿针孔513的位置和深度标识511位置一一对应，且符合超声机器内软件设置的进针路线；穿针孔513的大小与规格标识512保持一一对应的关系；穿针孔513的型号可根据实际需求进行选择，其中，采用半封闭孔的结构时，在医生需要穿刺针与穿刺针架分离时，可以快速的将穿刺针 或活检针从穿刺孔513上的开口处平行移出，进而可以快速撤下超声探头和穿刺支架，单独将穿刺针留在人体内进行给药或治疗等操作。
由于针槽板5为独立的结构，其卡接在杆4上即可，因此，针槽板5可以具有多种结构形式。图9为主体部分的结构示意图；图10为配合部分的结构示意图；图11为配合部分顶部卡扣的结构示意图；图12为配合部分底部凸起的结构示意图；如图9至图12所示，针槽板5可进一步采用分体结构，即针槽臂51包括主体部分53和配合部分54，配合部分54的对接面上设有凹槽5131，主体部分53的对接面与配合部分54对接形成封闭的孔。
其中，主体部分53和配合部分54通过连接组件连接；连接组件包括位于主体部分53顶部的孔531和位于配合部分54顶部的卡扣541，卡扣541包括垂直于配合部分54对接面的第一平板5411，第一平板5411的自由端连接与第一平板5411平行设置的第二平板5412，第一平板5411和第二平板5412形成U型结构，第二平板5412的自由端延伸凸出配合部分54的表面，该表面为远离配合部分54对接面的平面，第二平板5412的上表面设有凸起结构542，凸起结构542具有第四斜面5421和第四直端面5422；主体部分53的底部设有与配合部分54底部对接的对接平台532，对接平台532上设有凹槽533，配合部分54的底部设有用于插接在凹槽533内的凸起543。
图13为主体部分和配合部分组装时的结构示意图；图14为主体部分和配合部分组装后的结构示意图；如图13所示，主体部分53和配合部分54组装置时，先将凸起543插入到凹槽533中，以凸起543和凹槽533中心点移动配合部分54，使配合部分54的对接面与主体部分53的对接面贴合，其中，移动过程中，卡扣541插接到孔531内，第二平板5412可向下产生形变(挤压形变或手动按压形变)，且可自动复位，使得凸起结构542穿过孔531后又自动复位，最终第四指端面5422抵接在孔531上形成如图14所示的组装结构。当进行拆分时，手按第二平板5412上的把 手5413使第二平板5412形变，此时凸起结构542可脱离孔531周边侧壁的封挡，进而使卡扣541与孔531分离，最后，将配合部分54底部的凸起543由凹槽533中拔出即可。
针槽板5采用分体结构，其使用时可以将不同型号的配合部分54与主体部分53组装，进而形成不同型号的针槽板5，以满足活检手术中不同的使用需求。
上述具体实施方式，并不构成对本发明保护范围的限制。本领域技术人员应该明白的是，取决于设计要求和其他因素，可以发生各种各样的修改、组合、子组合和替代。任何在本发明的精神和原则之内所作的修改、等同替换和改进等，均应包含在本发明保护范围之内。

Claims (10)

  1. 一种适配器，其特征在于，该适配器为中空结构，包括同轴且依次连接的进针部、连接部以及配合部；
    所述配合部用于插入针槽板上的穿针孔，配合部的外表面为柱面；
    所述进针部的内表面为柱面或锥面；
    所述连接部的内表面为柱面或锥面；
    所述配合部的内表面为柱面或锥面。
  2. 根据权利要求1所述的适配器，其特征在于，
    所述进针部的外表面为柱面或锥面；
    所述连接部的外表面为柱面或锥面。
  3. 根据权利要求1所述的适配器，其特征在于，
    所述柱面为圆柱面，并且/或者，所述锥面为圆锥面。
  4. 根据权利要求1至3中任一项所述的适配器，其特征在于，
    所述进针部、连接部以及配合部均为弹性材质制成。
  5. 一种针槽板组件，其特征在于，包括针槽板和权利要求1至4中任一项所述的适配器，其中，
    所述针槽板包括针槽臂和卡接组件，针槽臂上设有多个平行的穿针孔，多个穿针孔沿针槽臂的高度方向分布，并且沿针槽臂宽度方向贯通针槽臂；卡接组件位于针槽臂的底部，用于连接穿刺支架；
    所述配合部的外径小于所述穿针孔的内径。
  6. 根据权利要求5所述的针槽板组件，其特征在于，在所述针槽臂的侧壁上，沿所述针槽臂的高度方向平行地设置有多个梁，所述穿针孔为所述多个梁之间的空隙。
  7. 根据权利要求5所述的针槽板组件，其特征在于，从所述穿针孔的径向进入穿针孔的入口的宽度小于所述穿针孔的内径。
  8. 根据权利要求5所述的针槽板组件，其特征在于，所述卡接组件包括凸起结构和两个插接臂，其中：
    两个所述插接臂沿所述针槽臂的宽度方向设置在所述针槽臂的底部的边缘；
    所述凸起结构设置在所述针槽臂的底面，并且位于两个所述插接臂之间，所述凸起结构具有第三斜面和第三直端面。
  9. 一种穿刺支架，其特征在于，包括如权利要求5至8中任一项所述的针槽板组件。
  10. 一种活检装置，其特征在于，包括超声探头、穿刺支架以及活检针，所述穿刺支架上设置有权利要求5至8中任一项所述的针槽板组件。
PCT/CN2020/094142 2020-06-03 2020-06-03 一种适配器、针槽板组件、穿刺支架及活检装置 WO2021243601A1 (zh)

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