WO2020051908A1 - 超声波探头以及超声设备 - Google Patents

超声波探头以及超声设备 Download PDF

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Publication number
WO2020051908A1
WO2020051908A1 PCT/CN2018/105820 CN2018105820W WO2020051908A1 WO 2020051908 A1 WO2020051908 A1 WO 2020051908A1 CN 2018105820 W CN2018105820 W CN 2018105820W WO 2020051908 A1 WO2020051908 A1 WO 2020051908A1
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Prior art keywords
puncture needle
ultrasonic probe
acoustic head
plane
guide
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PCT/CN2018/105820
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English (en)
French (fr)
Inventor
白乐云
唐明
吴飞
张晶
王胜利
宁浩
Original Assignee
深圳迈瑞生物医疗电子股份有限公司
深圳迈瑞科技有限公司
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Application filed by 深圳迈瑞生物医疗电子股份有限公司, 深圳迈瑞科技有限公司 filed Critical 深圳迈瑞生物医疗电子股份有限公司
Priority to CN201880097165.1A priority Critical patent/CN112672689A/zh
Priority to PCT/CN2018/105820 priority patent/WO2020051908A1/zh
Publication of WO2020051908A1 publication Critical patent/WO2020051908A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves

Definitions

  • the present application relates to a medical device, and in particular, to a probe structure of an ultrasonic device.
  • An ultrasonic probe is a necessary component in an ultrasonic device, and it usually has a head that emits and receives ultrasonic waves. During the test, the operator holds the probe and contacts the front end of the acoustic head with the subject. The acoustic head emits ultrasonic waves and receives reflected ultrasonic waves for use in ultrasound equipment to form an image for the operator's reference.
  • This ultrasound device is often used in puncture surgery, and the direction of the puncture needle can be intuitively observed through the imaging of the ultrasound device.
  • a puncture needle configured by each manufacturer is used to guide the puncture needle for puncture, or a bare needle is used for puncture under the image guidance.
  • the puncture with the puncture frame is accurate, it is expensive and the operation flow is complicated. However, there is no accuracy in puncture by hand. Once the puncture needle is offset from the imaging plane of the ultrasound device, the path of the needle cannot be seen.
  • the invention mainly provides a new type of ultrasonic probe and an ultrasonic device using the ultrasonic probe to ensure that at least the front end of the puncture needle is always located in the imaging plane of the ultrasonic device, thereby improving the puncture efficiency of the operator.
  • an ultrasonic probe including:
  • An acoustic head which is used to send and receive ultrasonic signals, and has a corresponding scanning surface, and the plane on which the scanning surface is located is a first plane;
  • the acoustic head shell the acoustic head is sealedly installed in the acoustic head shell, and a part of the acoustic head is exposed from the acoustic head shell;
  • the limit guide structure has a guide channel through which the puncture needle can pass and restrict the direction of the puncture needle, and the guide channel is linearly extended in the first plane so that the puncture needle and the scan
  • the planes are always on the same plane and at least the front end of the puncture needle is located in the scanning plane.
  • the ultrasonic probe further includes: a magnetic member capable of attracting the puncture needle, and the magnetic member is provided corresponding to the guide channel for adsorbing the puncture needle in the guide channel.
  • the guide channel includes a guide groove having a bottom wall, a top opening opposite to the bottom wall, a front end opening as a puncture needle outlet, and a rear end opening as a puncture needle inlet,
  • the first plane passes through the top opening, the front opening, and the rear opening.
  • the position-limiting guide structure is located on the acoustic head shell.
  • the position-limiting guide structure includes two projections protrudingly arranged on the outer wall of the acoustic head shell, the projection direction of the projections is parallel to the first plane, and the two projections are spaced apart. And forming the guide groove.
  • an outer wall of the acoustic head shell is recessed to form the guide groove.
  • the guide groove has a V-shaped, U-shaped, trapezoidal, square or arc-shaped cross section.
  • the guide channel includes a guide hole, and the guide hole is linearly extended in the first plane.
  • the position-limiting guide structure is integrally formed with the acoustic head shell.
  • the magnetic member is disposed in the acoustic head shell and corresponds to a bottom wall of the guide channel.
  • the magnetic member is disposed on a bottom wall and / or a side wall of the guide channel.
  • the magnetic member includes at least one of a permanent magnet and an electromagnet.
  • an embodiment provides an ultrasonic device, including a host for data processing, a control panel, and a display device, and further including an ultrasonic probe according to any one of the above, which is connected to the host To transmit the collected ultrasonic signals to the host.
  • the ultrasonic probe according to the above embodiment has a limit guide structure having a guide channel capable of accommodating a puncture needle and restricting the direction of the puncture needle, and the guide channel is linearly extended in the plane where the probe scan surface is located, so that The puncture needle and the scanning surface are always located on the same plane and at least the front end of the puncture needle is located in the scanning surface, so that the operator can always see the front end of the puncture needle on the image of the ultrasound device during the puncture process, and intuitively understand the current Position, thereby improving the operator's control accuracy of the puncture needle.
  • the probe can also be provided with magnetic parts, which can guide and attract the puncture needle in the guide channel, which can prevent the puncture needle from accidentally falling out of the guide channel, so that the doctor does not need to keep the puncture needle in the guide channel constantly during the puncture process. Inside, it facilitates the puncture operation of the doctor.
  • FIG. 1 is a schematic diagram of a combination of an ultrasonic probe and a puncture needle in Embodiment 1 of the present application;
  • FIG. 1 is a schematic diagram of a combination of an ultrasonic probe and a puncture needle in Embodiment 1 of the present application;
  • FIG. 2 is a schematic diagram of another ultrasonic probe according to the first embodiment of the present application.
  • FIG. 3 is a schematic diagram of a magnetic component in a sectional view in Embodiment 1 of the present application.
  • connection and “connection” in this application include direct and indirect connections (connections) unless otherwise specified.
  • an ultrasonic probe which is mainly used to send and receive ultrasonic waves as a part of an ultrasonic device, so that the detection part of the subject can be formed into an image for reference by the operator.
  • the ultrasound equipment may be related equipment such as an ultrasound diagnostic apparatus.
  • the ultrasonic probe 100 includes an acoustic head 110, an acoustic head housing 120, and a position-limiting guide structure 130.
  • the acoustic head 110 is used for transmitting and receiving ultrasonic signals.
  • Each acoustic head 110 has a corresponding scanning surface 111 (also referred to as an acoustic surface).
  • the scanning surface 111 is a scanning area of the acoustic head 110, and finally a planar image is formed based on the scanning area.
  • the plane on which the scanning plane 111 lies is referred to as the first plane in this application.
  • the acoustic head 110 is hermetically installed in the acoustic head case 120, and a part of the acoustic head 110 is exposed from the acoustic head case 120 for contacting the subject.
  • the acoustic head 110 may adopt various structures of the acoustic head 110.
  • the conventional acoustic head 110 may include a structure such as a backing, a wafer, and a lens.
  • the ultrasonic probe 100 usually also has other components such as a pressure sensor, a trigger, a control unit, and the like, and is not repeated here.
  • the position-limiting guide structure 130 has a guide channel (for example, the guide groove 131 is used as the guide channel) in which the puncture needle can pass and the direction of the puncture needle is restricted. ) Is linearly extended in the first plane so that the puncture needle 200 and the scanning surface 111 are always located on the same plane, and at least the front end portion of the puncture needle 200 is located in the scanning surface 111.
  • the guide channel includes various structures, such as a guide groove and a guide hole, capable of limiting and guiding the puncture needle 200.
  • the puncture needle 200 and the scanning surface 111 are always located on the same plane, and at least the front end portion of the puncture needle 200 is located within the scanning surface 111, the operator can always use the ultrasound equipment during the puncture process.
  • the front end of the puncture needle 200 is seen on the image, and the current position of the puncture needle 200 is intuitively understood, thereby improving the operator's control accuracy of the puncture needle 200 and also improving the puncture efficiency of the operator.
  • FIG. 2 taking a guide groove 131 as a guide channel as an example.
  • the guide groove 131 has a bottom wall (blocked in the figure, and is not shown), and a top opening 1311 opposite to the bottom wall serves as a puncture.
  • the first plane can be passed through the top opening 1311, the front opening 1312, and the rear opening 1313, that is, the top opening 1311, the front opening 1312, and the rear opening. 1313 are all located in the first plane. This can not only ensure that the puncture needle 200 is always located in the first plane in the forward and backward directions, but because the top opening 1311 is also in the first plane, the puncture needle 200 can be in the bottom and top directions of the guide groove 131. There is a certain range of swing space, for example, the puncture needle 200 is swung up and down around the front end opening 1312. At this time, the puncture needle 200 is still always in the first plane, thereby improving the flexibility of the operator in the puncture operation.
  • the guide groove 131 may have, but is not limited to, a V-shaped, U-shaped, trapezoidal, square, or arc-shaped cross section.
  • the cross section refers to a cross section formed by cutting the guide groove 131 with a plane perpendicular to the bottom wall of the guide groove 131 and the side walls on both sides (such as the side wall formed by reference numeral 1315 in FIG. 1).
  • the position-limiting guide structure 130 may be provided on the acoustic head housing 120 or other positions of the ultrasonic probe 100, for example, it may be provided on a probe housing that is generally used as a holding part. In addition, the position-limiting guide structure 130 may be fixedly mounted on the acoustic head shell 120, or may be integrally formed with the acoustic head shell 120.
  • the position-limiting guiding structure 130 includes two protrusions 1315 protrudingly disposed on the outer wall of the acoustic head shell 120.
  • the two protrusions 1315 are spaced apart and form a guide groove 131.
  • the convex direction of the projection 1315 is parallel to the first plane.
  • the two protrusions 1315 may be integrally formed with the phono shell 120, or may be fixedly connected to the phono shell 120, for example, fixed by bonding, welding, or the like.
  • the outer wall of the acoustic head shell 120 is recessed to form a guide groove 131.
  • the outer wall of the acoustic head shell 120 may be integrally formed with the guide groove 131, and of course, it may also be fixed and fixed.
  • the guide channel may also include a guide hole, and the guide hole is linearly extended in the first plane.
  • the puncture needle 200 passes through the guide hole, and the travel direction is determined by the guide hole.
  • some embodiments further include a magnetic member capable of attracting the puncture needle 200.
  • the magnetic member is provided corresponding to the guide channel, and is used to guide the puncture needle 200 into the guide channel.
  • the magnetic needle can be used to attract the puncture needle 200 into the guide channel to prevent it from slipping out of the guide channel.
  • the magnetic member may use, but is not limited to, at least one of a permanent magnet and an electromagnet.
  • Conventional probes do not have such a magnetic member capable of attracting a puncture needle.
  • the doctor When performing a manual puncture operation, the doctor must always apply a force to the puncture needle to keep it in the guide channel so that the guide channel can guide the puncture operation. Therefore, on the one hand, the doctor needs to push the puncture needle forward by hand to penetrate the puncture needle into the tissue, and on the other hand, it needs to apply such a holding force to the puncture needle. It may even lead to wrong puncture or injury to the patient, resulting in medical accidents.
  • a magnetic member is provided in the probe, and the magnetic member adsorbs the puncture needle in the guide channel.
  • the doctor does not need to keep the puncture needle in the guide channel constantly during the puncture process, but only needs to focus on pushing the puncture needle into the tissue, thereby greatly reducing the burden on the doctor's wrist and facilitating the doctor's puncture operation.
  • the magnetic member 140 is disposed in the acoustic shell 120.
  • the guide groove 131 can be disposed on the back of the bottom wall of the guide groove 131, so that once the puncture needle 200 approaches the guide groove 131, the magnetic member 140 can be attracted into the guide groove 131.
  • the magnetic member 140 may not be disposed in the acoustic head shell 120, but may be directly disposed in the guide groove 131 (or other guide channel), such as the bottom wall and / or the side wall.
  • an ultrasound apparatus which includes a host for data processing, a control panel, and a display device.
  • the control panel is usually used to receive an operator's instruction input, and the display device is mostly used to display the image detected by the ultrasound equipment.
  • the ultrasonic device also includes an ultrasonic probe, which is connected to the host and used to transmit the collected ultrasonic signals to the host for subsequent processing by the host.
  • the ultrasonic probe adopts any structure as shown in the above embodiment, thereby ensuring that the operator can always see the front end of the puncture needle on the image of the ultrasound device during the puncture process, and intuitively understand the current position of the puncture needle 200, thereby Improve the operator's control accuracy of the puncture needle.

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Abstract

一种超声波探头及超声设备，该超声波探头具有限位导向结构及磁性件，该限位导向结构具有能够容置穿刺针且限制穿刺针方向的导向通道，磁性件将穿刺针吸附在导向通道内，该导向通道在探头扫描面所在平面内直线延伸设置，使穿刺针与扫描面始终位于同一平面且穿刺针至少前端部分位于扫描面内，这样操作者在穿刺过程中始终可以在超声设备的图像上看到穿刺针的前端，直观地了解到当前穿刺针的位置，从而提高操作者对穿刺针的控制精度，并且不需要始终施力将穿刺针保持在导向通道内，方便了操作者的穿刺操作。

Description

超声波探头以及超声设备 技术领域
本申请涉及一种医疗器械，具体涉及一种超声设备的探头结构。
背景技术
超声波探头是超声设备中的必要部件，其通常具有发出和接收超声波的声头。在检测时，操作者握持探头，将声头前端与被检测者接触，该声头发出超声波并接收反射的超声波，以便用于超声设备形成图像，供操作者参考。
该超声设备经常应用于穿刺手术，通过超声设备的成像可以直观的观察到穿刺针的走向。但是，在传统的穿刺操作中，要么利用各个厂家配置的穿刺架引导穿刺针进行穿刺，要么徒手拿针在图像引导下穿刺。利用穿刺架穿刺虽然穿刺准确，但是价格昂贵、操作流复杂。而徒手穿刺没有精度可言，一旦穿刺针偏移了超声设备的成像平面，就无法看到针的路径。
发明内容
本发明主要提供一种新型的超声波探头以及采用了这种超声波探头的超声设备，用以保证穿刺针至少前端始终位于超声设备的成像平面内，从而提高操作者的穿刺效率。
根据第一方面，一种实施例中提供一种超声波探头，包括：
声头，所述声头用于发出和接收超声波信号，其具有对应的扫描面，所述扫描面所在平面为第一平面；
声头壳，所述声头密封安装在声头壳内，且所述声头的一部分从声头壳上露出；
以及限位导向结构，所述限位导向结构具有能够供穿刺针穿过且限制穿刺针方向的导向通道，所述导向通道在第一平面内直线延伸设置，使所述穿刺针与所述扫描面始终位于同一平面且所述穿刺针至少前端部分位于所述扫描面内。
一种实施例中，所述超声波探头，还包括：磁性件,所述磁性件能够 吸附穿刺针，所述磁性件与导向通道对应设置，用于将穿刺针吸附在所述导向通道内。
一个实施例中，所述导向通道包括导向凹槽，所述导向凹槽具有底壁、与所述底壁相对的顶端开口、作为穿刺针出口的前端开口以及作为穿刺针入口的后端开口，所述第一平面穿过所述顶端开口、前端开口和后端开口。
一个实施例中，所述限位导向结构位于所述声头壳上。
一个实施例中，所述限位导向结构包括两个在声头壳外壁上凸起设置的凸块，所述凸块凸起方向平行于所述第一平面，两个所述凸块间隔设置并形成所述导向凹槽。
一个实施例中，所述声头壳的外壁内凹形成所述导向凹槽。
一个实施例中，所述导向凹槽具有V形、U形、梯形、方形或圆弧形的横截面。
一个实施例中，所述导向通道包括导向孔，所述导向孔在第一平面内直线延伸设置。
一个实施例中，所述限位导向结构与声头壳一体成型。
一个实施例中，所述磁性件设置在声头壳内，并与所述导向通道的底壁对应。
一个实施例中，所述磁性件设置在导向通道的底壁和/或侧壁上。
一个实施例中，所述磁性件包括永磁体和电磁铁中的至少一种。
根据第一方面，一种实施例中提供一种超声设备，包括用于数据处理的主机、控制面板和显示装置，还包括如上述任一项所述的超声波探头，所述超声波探头与主机连接，用以将采集到的超声信号传送至所述主机。
依据上述实施例的超声波探头，其具有限位导向结构，该限位导向结构具有能够容置穿刺针且限制穿刺针方向的导向通道，该导向通道在探头扫描面所在平面内直线延伸设置，使穿刺针与扫描面始终位于同一平面且穿刺针至少前端部分位于扫描面内，这样操作者在穿刺过程中始终可以在超声设备的图像上看到穿刺针的前端，直观地了解到当前穿刺针的位置，从而提高操作者对穿刺针的控制精度。此外，探头中还可设有磁性件，能够将穿刺针引导并吸附在导向通道内，可以避免穿刺针意外从导向通道内滑落，使得医生在穿刺过程中不用始终用力将穿刺针保 持在导向通道内，方便了医生的穿刺操作。
附图说明
图1为本申请实施例一中一种超声波探头与穿刺针配合示意图；
图2为本申请实施例一中另一种超声波探头的示意图；
图3为本申请实施例一中剖视状态下磁性件的示意图。
具体实施方式
下面通过具体实施方式结合附图对本发明作进一步详细说明。其中不同实施方式中类似元件采用了相关联的类似的元件标号。在以下的实施方式中，很多细节描述是为了使得本申请能被更好的理解。然而，本领域技术人员可以毫不费力的认识到，其中部分特征在不同情况下是可以省略的，或者可以由其他元件、材料、方法所替代。在某些情况下，本申请相关的一些操作并没有在说明书中显示或者描述，这是为了避免本申请的核心部分被过多的描述所淹没，而对于本领域技术人员而言，详细描述这些相关操作并不是必要的，他们根据说明书中的描述以及本领域的一般技术知识即可完整了解相关操作。
另外，说明书中所描述的特点、操作或者特征可以以任意适当的方式结合形成各种实施方式。同时，方法描述中的各步骤或者动作也可以按照本领域技术人员所能显而易见的方式进行顺序调换或调整。因此，说明书和附图中的各种顺序只是为了清楚描述某一个实施例，并不意味着是必须的顺序，除非另有说明其中某个顺序是必须遵循的。
本文中为部件所编序号本身，例如“第一”、“第二”等，仅用于区分所描述的对象，不具有任何顺序或技术含义。而本申请所说“连接”、“联接”，如无特别说明，均包括直接和间接连接(联接)。
一个本实施例中，提供了一种超声波探头，其作为超声设备的一部分，主要用于发出和接收超声波，以便于能够将被检测者的检测部位形成图像，供操作者参考。该超声设备可以为超声诊断仪等相关设备。
请参考图1，该超声波探头100包括声头110、声头壳120以及限位导向结构130。该声头110用于发出和接收超声波信号。每个声头110都具有对应的扫描面111(或称为声学面)，该扫描面111即声头110的扫描区域，并最终基于该扫描区域形成平面图像。为了便于描述，本申 请中将扫描面111所在平面称为第一平面。该声头110密封安装在声头壳120内，其一部分从声头壳120露出，用以与被检测者接触。在本实施例中该声头110可采用各类结构的声头110，例如通常的声头110可包括背衬、晶片以及透镜等结构。当然，除了以上声头110和声头壳120外，该超声波探头100通常还具有压力传感器、触发件、控制单元等其他部件，在此不再赘言。
请继续参考图1，该限位导向结构130具有能够供穿刺针穿过且限制穿刺针方向的导向通道(图1中以导向凹槽131作为导向通道)，该导向通道(如导向凹槽131)在第一平面内直线延伸设置，使穿刺针200与扫描面111始终位于同一平面且穿刺针200至少前端部分位于扫描面111内。该导向通道包括导向凹槽、导向孔等各类能够实现对穿刺针200进行限制和导向的结构。
在利用本超声波探头100进行穿刺操作时，由于穿刺针200与扫描面111始终位于同一平面，并且穿刺针200至少前端部分位于扫描面111内，因此，操作者在穿刺过程中始终可以在超声设备的图像上看到穿刺针200的前端，直观地了解到当前穿刺针200的位置，从而提高操作者对穿刺针200的控制精度，也提高了操作者的穿刺效率。
进一步地，请参考图2，以导向凹槽131作为导向通道为例，该导向凹槽131具有底壁(图中被遮挡，故未示出)、与底壁相对的顶端开口1311、作为穿刺针200出口的前端开口1312以及作为穿刺针200入口的后端开口1313。该图1中因为绘制出了穿刺针，故未标注出顶端开口1311、前端开口1312和后端开口1313，但其分布与图2所示一致。为了保证该导向凹槽131能够将穿刺针200限制在第一平面，可以使第一平面穿过顶端开口1311、前端开口1312和后端开口1313，即顶端开口1311、前端开口1312和后端开口1313均位于第一平面内。这样不仅可以保证穿刺针200在前进和后退方向上始终位于第一平面内，而且由于该顶端开口1311也在第一平面内，因此穿刺针200可以在导向凹槽131的底端和顶端方向上有一定范围的摆动空间，例如使穿刺针200绕着前端开口1312处上下摆动，此时，穿刺针200依然始终处于第一平面内，从而提高了操作者在穿刺操作中的灵活性。
该导向凹槽131可以具有但不限于V形、U形、梯形、方形或圆弧形的横截面。该横截面是指以一个与导向凹槽131的底壁以及两侧侧壁 (如图1中标号1315所形成的侧壁)垂直的平面截断该导向凹槽131后所形成的截面。
该限位导向结构130可以设置在声头壳120上，也可以设置在超声波探头100的其他位置，例如可设置在通常作为握持部的探头壳体上。此外，该限位导向结构130可以是固定安装在声头壳120上，也可以是与声头壳120一体成型。
请参考图1，一种实施例中，该限位导向结构130包括两个在声头壳120外壁上凸起设置的凸块1315。两个凸块1315间隔设置并形成导向凹槽131。为了保证该导向凹槽131位于第一平面内，该凸块1315凸起方向平行于第一平面。
该两个凸块1315可以与声头壳120一体成型，也可以是与声头壳120固定连接，例如通过粘接、焊接等方式固定。
请参考图2，在另一种实施例中，该声头壳120的外壁内凹形成导向凹槽131。此时，该声头壳120的外壁可以与该导向凹槽131一体成型，当然，也可以是拼合固定。
以上以导向凹槽131为例进行了说明，在其他实施例中，该导向通道也可以包括导向孔，该导向孔在第一平面内直线延伸设置。穿刺针200从导向孔内穿过，由导向孔决定了其行进方向。
进一步地，为了便于穿刺针200被快速而准确的置于导向通道内，一些实施例中还包括能够吸附穿刺针200的磁性件。该磁性件与导向通道对应设置，用于将穿刺针200引导至导向通道内，同时可以通过磁性吸附作用，将穿刺针200吸附在导向通道内，避免其滑落出导向通道。该磁性件可以采用但不限于永磁体和电磁铁中的至少一种。
常规的探头中，并没有设置这种能够吸附穿刺针的磁性件。医生在进行手动穿刺操作时，必须始终给穿刺针施加一个力，使其保持在导向通道内以使得导向通道能够给穿刺操作提供导引。因此，医生一方面需要用手向前推动穿刺针以使穿刺针刺入组织，另一方面还需要给穿刺针施加这种保持力，操作非常不便，手腕容易疲劳，从而容易导致穿刺过程出现意外，甚至导致穿刺出现错误或者伤害病人，产生医疗事故。
而本实施例中，在探头中设置磁性件，该磁性件将穿刺针吸附在导向通道内。这样，医生在穿刺过程中不用始终用力将穿刺针保持在导向通道内，而只需专注于推动穿刺针刺入组织中，从而大大减小了医生手 腕的负担，方便了医生的穿刺操作。
当然，磁性件的设置可以有很多选择，例如，请参考图1和3，该磁性件140设置在声头壳120内。具体来说，以导向凹槽131为例，可以设置在导向凹槽131底壁的背面，这样一旦穿刺针200靠近导向凹槽131，就能够被磁性件140吸附到导向凹槽131内。或者，该磁性件140也可不设置在声头壳120内，而是直接设置导向凹槽131(或其他导向通道)内，例如底壁和/或侧壁上。
一个实施例中，提供了一种超声设备，其包括用于数据处理的主机、控制面板和显示装置。该控制面板通常用来接收操作者的指令输入，而显示装置则多用于显示超声设备所探测到的图像。
同时，本超声设备还包括超声波探头，该超声波探头与主机连接，用以将采集到的超声信号传送至主机，以便主机后续处理。该超声波探头采用如上述实施例所示任一种结构，从而保证操作者在穿刺过程中始终可以在超声设备的图像上看到穿刺针的前端，直观地了解到当前穿刺针200的位置，从而提高操作者对穿刺针的控制精度。
以上应用了具体个例对本发明进行阐述，只是用于帮助理解本发明，并不用以限制本发明。对于本领域的一般技术人员，依据本发明的思想，可以对上述具体实施方式进行变化。

Claims (18)

  1. 一种超声波探头，其特征在于，包括：
    声头，所述声头用于发出和接收超声波信号，其具有对应的扫描面，所述扫描面所在平面为第一平面；
    声头壳，所述声头密封安装在声头壳内，且所述声头的一部分从声头壳上露出；
    限位导向结构，所述限位导向结构具有能够供穿刺针穿过且限制穿刺针方向的导向通道，所述导向通道在第一平面内直线延伸设置，使所述穿刺针与所述扫描面始终位于同一平面且所述穿刺针至少前端部分位于所述扫描面内；
    以及磁性件，所述磁性件能够吸附穿刺针，所述磁性件与导向通道对应设置，用于将穿刺针吸附在所述导向通道内。
  2. 如权利要求1所述的超声波探头，其特征在于，所述导向通道包括导向凹槽，所述导向凹槽具有底壁、与所述底壁相对的顶端开口、作为穿刺针出口的前端开口以及作为穿刺针入口的后端开口，所述第一平面穿过所述顶端开口、前端开口和后端开口。
  3. 如权利要求2所述的超声波探头，其特征在于，所述限位导向结构位于所述声头壳上。
  4. 如权利要求3所述的超声波探头，其特征在于，所述限位导向结构包括两个在声头壳外壁上凸起设置的凸块，所述凸块凸起方向平行于所述第一平面，两个所述凸块间隔设置并形成所述导向凹槽。
  5. 如权利要求3所述的超声波探头，其特征在于，所述声头壳的外壁内凹形成所述导向凹槽。
  6. 如权利要求2所述的超声波探头，其特征在于，所述导向凹槽具有V形、U形、梯形、方形或圆弧形的横截面。
  7. 如权利要求1所述的超声波探头，其特征在于，所述导向通道包括导向孔，所述导向孔在第一平面内直线延伸设置。
  8. 如权利要求1-7任一项所述的超声波探头，其特征在于，所述限位导向结构与声头壳一体成型。
  9. 如权利要求1所述的超声波探头，其特征在于，所述磁性件设置在声头壳内，并与所述导向通道的底壁对应。
  10. 如权利要求1所述的超声波探头，其特征在于，所述磁性件设 置在导向通道的底壁和/或侧壁上。
  11. 如权利要求1-10任一项所述的超声波探头，其特征在于，所述磁性件包括永磁体和电磁铁中的至少一种。
  12. 一种超声波探头，其特征在于，包括：
    声头，所述声头用于发出和接收超声波信号，其具有对应的扫描面，所述扫描面所在平面为第一平面；
    声头壳，所述声头密封安装在声头壳内，且所述声头的一部分从声头壳上露出；
    限位导向结构，所述限位导向结构具有能够供穿刺针穿过且限制穿刺针方向的导向通道，所述导向通道在第一平面内直线延伸设置，使所述穿刺针与所述扫描面始终位于同一平面且所述穿刺针至少前端部分位于所述扫描面内。
  13. 如权利要求12所述的超声波探头，其特征在于，所述导向通道包括导向凹槽，所述导向凹槽具有底壁、与所述底壁相对的顶端开口、作为穿刺针出口的前端开口以及作为穿刺针入口的后端开口，所述第一平面穿过所述顶端开口、前端开口和后端开口。
  14. 如权利要求13所述的超声波探头，其特征在于，所述限位导向结构位于所述声头壳上。
  15. 如权利要求14所述的超声波探头，其特征在于，所述声头壳的外壁内凹形成所述导向凹槽。
  16. 如权利要求12所述的超声波探头，其特征在于，所述导向通道包括导向孔，所述导向孔在第一平面内直线延伸设置。
  17. 如权利要求12-16任一项所述的超声波探头，其特征在于，所述限位导向结构与声头壳一体成型。
  18. 一种超声设备，包括用于数据处理的主机、控制面板和显示装置，其特征在于，还包括如权利要求1-17任一项所述的超声波探头，所述超声波探头与主机连接，用以将采集到的超声信号传送至所述主机。
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