WO2021128836A1 - 一种操作臂及脑立体定位仪 - Google Patents

一种操作臂及脑立体定位仪 Download PDF

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Publication number
WO2021128836A1
WO2021128836A1 PCT/CN2020/105093 CN2020105093W WO2021128836A1 WO 2021128836 A1 WO2021128836 A1 WO 2021128836A1 CN 2020105093 W CN2020105093 W CN 2020105093W WO 2021128836 A1 WO2021128836 A1 WO 2021128836A1
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WO
WIPO (PCT)
Prior art keywords
waist
handle
screw
operating arm
joint
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PCT/CN2020/105093
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English (en)
French (fr)
Inventor
黄兴强
Original Assignee
深圳市瑞沃德生命科技有限公司
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Application filed by 深圳市瑞沃德生命科技有限公司 filed Critical 深圳市瑞沃德生命科技有限公司
Publication of WO2021128836A1 publication Critical patent/WO2021128836A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis

Definitions

  • This application relates to the technical field of brain stereotaxic, in particular to an operating arm and a brain stereotaxic instrument.
  • the existing stereotaxic device includes: a bottom plate 1, a U-shaped seat 4 installed on the bottom plate 1 with an incisor holder 2 and ear rods 3, and a U-shaped seat 4 installed on the U-shaped seat 4
  • the three-dimensional positioning probe holder is composed of X, Y, Z operating arms 5, 6, 7 and probe fixing rod 8.
  • the X, Y, and Z operating arms 5, 6, 7 are all composed of guide rails 54, 64, 74 and screws 53, 63, 73 with handles 52, 62, 72.
  • the X, Y, and Z operating arms 5, 6, and 7 are respectively provided with vernier seats 51, 61, 71 that can move relative to the guide rails 54, 64, 74 in the axial direction.
  • the vernier base 51 of the X operating arm 5 is fixedly arranged on the back of the vernier base 71 of the Z operating arm 7, and the X operating arm 5 is mounted on the vernier base 71 of the Z operating arm 7.
  • the guide rail 54 can be made by rotating the screw 53 with the handle 52. Axial movement; the Y operating arm 6 is fixed on the U-shaped seat 4 by the vernier base 61, and the guide rail 64 can be moved axially by rotating the screw 63 with the handle 62; the Z operating arm 7 passes through the vertical rotation axis 9 and the horizontal rotation axis 10 Installed at the end of the guide rail 64 of the Y operating arm 6, the vernier base 71 can be moved axially along the guide rail 74 by rotating the screw 73 with the handle 72.
  • the handle 72 is fixedly installed on the screw 73;
  • the guide rail 74 includes a guide rod 741, a scale rod 742 and a waist joint 743.
  • the guide rod 741 plays a guiding role;
  • the scale rod 742 is provided with a scale, which can be used for both guiding and reading;
  • a through hole is provided on the waist joint 743, and the screw 73 passes through the through hole.
  • the guide rod 741, the scale rod 742 and the waist joint 743 are connected to form an integrated frame.
  • the guide rod 741, the scale rod 742 and the screw 73 pass through the through holes.
  • the inner wall of the through hole through which the guide rod 741 and the scale rod 742 pass is smooth, and the screw 73 passes through.
  • the inner arm of the through hole is provided with a thread, and the thread is engaged with the screw 73.
  • the embodiment of the present application provides an operating arm, which aims to solve the problem of relatively laborious manipulation of the operating arm in the prior art.
  • an operating arm including:
  • the guide rail (74) including the guide rod (741), the scale rod (742) and the waist joint (743);
  • the guide rod (741), the scale rod (742) and the waist-shaped joint (743) are connected to form an integrated frame, the waist-shaped joint (743) is provided with a through hole, and the screw ( 73) Pass through the through hole, and between the handle (72) and the waist joint (743) and/or between the screw (73) and the waist joint (743) are provided Rolling bearing (75).
  • a brain stereotaxic device which includes the above-described operating arm.
  • rolling bearings are provided between the handle of the operating arm and the waist joint and between the screw and the waist joint.
  • the handle When the handle is rotated, there is rolling friction between the handle and the waist joint, and between the screw and the waist joint. It saves effort when manipulating the operating arm.
  • Figure 1 is a front view of a stereotaxic device for the brain in the prior art
  • Figure 2 is a top view of a stereotaxic device for the brain in the prior art
  • FIG. 3 is a cross-sectional view of the Z operating arm 7 of the brain stereotaxic device provided by the prior art
  • Figure 4 is a cross-sectional view of the operating arm provided in the first embodiment of the present application.
  • Figure 5 is a cross-sectional view of the operating arm provided in the second embodiment of the present application.
  • Fig. 6 is a cross-sectional view of the operating arm provided in the third embodiment of the present application.
  • Fig. 4 is a cross-sectional view of the operating arm provided in the first embodiment of the present application.
  • the operating arm includes a handle 72, a screw 73, a guide rail 74 and a rolling bearing 75.
  • the handle 72 is fixedly installed on the screw 73.
  • the guide rail 74 includes a guide rod 741, a scale rod 742 and a waist joint 743.
  • the guide rod 741, the scale rod 742 and the waist joint 743 are connected to form an integrated frame, that is, these three form a fixed frame.
  • the guide rod 741 plays a guiding role;
  • the scale rod 742 is provided with a scale, which can be used for guiding and reading at the same time;
  • the waist joint 743 is provided with a through hole, and the screw 73 passes through the through hole.
  • the rolling bearing 75 is provided between the handle 72 and the waist joint 743, or between the screw 73 and the waist joint 743, or the rolling bearing 75 is provided at both of the above-mentioned positions.
  • rolling bearings 75 are provided at the above two positions.
  • the rolling bearing 75 is a ball.
  • the upper and lower surfaces of the waist joint 743 are flat surfaces, and balls are arranged between the handle 72 and the upper surface of the waist joint 743 and between the screw 73 and the lower surface of the waist joint 743.
  • the handle 72 is rotated, there is rolling friction between the handle 72 and the upper surface of the waist joint 743, and between the screw 73 and the lower surface of the waist joint 743.
  • balls are arranged between the handle of the operating arm and the waist-shaped joint and between the screw and the waist-shaped joint.
  • the handle When the handle is rotated, there is rolling friction between the handle and the waist-shaped joint, and between the screw and the waist-shaped joint. It saves effort when manipulating the operating arm.
  • FIG. 5 is a cross-sectional view of the operating arm provided in the second embodiment of the application.
  • the operating arm includes a handle 72, a screw 73, a guide rail 74 and a rolling bearing 75.
  • the basic structure of the operating arm is the same as that of the first embodiment, and the same components as those of the first embodiment use the same reference numerals as those of the first embodiment, including all the features described in the first embodiment, and will not be omitted here. Go into details.
  • the rolling bearing 75 is a thrust ball bearing.
  • the thrust ball bearing includes a first raceway ring 751, a steel ball cage 752, and a second raceway ring 753.
  • the first raceway ring 751 is in contact with the waist joint 743
  • the second raceway ring 753 is in contact with the handle 2 and the screw 73.
  • the upper and lower surfaces of the waist joint 743 are flat surfaces, and thrust ball bearings are provided between the handle 72 and the upper surface of the waist joint 743 and between the screw 73 and the lower surface of the waist joint 743.
  • the handle 72, the rolling bearing 75 and the waist joint 743 are compressed, and the screw 73, the rolling bearing 75 and the waist joint 743 are compressed.
  • thrust ball bearings are provided between the handle of the operating arm and the waist joint and between the screw and the waist joint.
  • the rolling is between the handle and the waist joint, and between the screw and the waist joint. Friction, less effort when manipulating the operating arm.
  • FIG. 6 is a cross-sectional view of the operating arm provided in the third embodiment of the application.
  • the operating arm includes a handle 72, a screw 73, a guide rail 74 and a rolling bearing 75.
  • the basic structure of the operating arm is the same as that of the first embodiment, and the same components as those of the first embodiment use the same reference numerals as those of the first embodiment, including all the features described in the first embodiment, and will not be omitted here. Go into details.
  • the upper and lower surfaces of the waist-shaped joint 743 are provided with grooves, between the handle 72 and the groove on the upper surface of the waist-shaped joint 743, the screw 73 and the groove on the lower surface of the waist-shaped joint 743 A rolling bearing 75 is provided between.
  • the groove can accommodate the rolling bearing 75, and its shape is not limited.
  • the rolling bearing 75 is arranged in the groove of the waist joint 743, so that the overall structure of the operating arm is more beautiful.
  • an elastic washer 76 is provided between the handle 72 and the rolling bearing 75, and the elastic washer 76 is in a compressed state.
  • rolling bearings and elastic washers are provided between the handle of the operating arm and the groove of the waist-shaped joint and between the screw and the groove of the waist-shaped joint.
  • the stereotaxic device for brain includes three operating arms with the same basic structure, and the operating arms are as described in the first to third embodiments above.
  • rolling bearings are provided between the handle of the operating arm and the waist joint and between the screw and the waist joint.
  • the handle When the handle is rotated, there is rolling friction between the handle and the waist joint, and between the screw and the waist joint. It saves effort when manipulating the operating arm.

Abstract

一种操作臂，包括：螺杆（73），固定安装在螺杆（73）上的手柄（72），以及包括导向杆（741）、刻度杆（742）和腰形接头（743）的导轨（74）；其中，导向杆（741）、刻度杆（742）和腰形接头（743）连接形成一体的框架，腰形接头（743）上设有通孔，螺杆（73）从通孔穿过，在手柄（72）与腰形接头（743）之间和/或螺杆（73）与腰形接头（743）之间设置有滚动轴承（75）。在操作臂的手柄（72）与腰形接头（743）之间和螺杆（73）与腰形接头（743）之间设置滚动轴承（75），在旋转手柄（72）时，手柄（72）与腰形接头（743）之间、螺杆（73）与腰形接头（743）之间为滚动摩擦，操纵操作臂时较为省力。

Description

一种操作臂及脑立体定位仪
本申请是以申请号为201911331317.2、申请日为2019年12月22日的中国专利申请为基础，并主张其优先权，该申请的全部内容在此作为整体引入本申请中。
技术领域
本申请涉及脑立体定位技术领域，尤其涉及一种操作臂及脑立体定位仪。
背景技术
从图1和图2可以看到，现有的脑立体定位仪包括：底板1、安装在底板1上设有门齿固定器2和耳杆3的U型座4以及安装在U型座4上的由X、Y、Z操作臂5、6、7和探针固定杆8构成的立体定位探针架。X、Y、Z操作臂5、6、7均由导轨54、64、74和带手柄52、62、72的螺杆53、63、73构成。X、Y、Z操作臂5、6、7上分别设有可与导轨54、64、74产生相对轴向移动的游标座51、61、71。
X操作臂5的游标座51固定设置在Z操作臂7的游标座71背面，并且X操作臂5安装在Z操作臂7的游标座71上，通过旋转带手柄52的螺杆53可使导轨54轴向移动；Y操作臂6通过游标座61固定在U型座4上，通过旋转带手柄62的螺杆63可使导轨64轴向移动；Z操作臂7通过垂直旋转轴9和水平旋转轴10安装在Y操作臂6的导轨64的末端，通过旋转带手柄72的螺杆73可使游标座71沿导轨74轴向移动。
由于X、Y、Z操作臂5、6、7的结构相同，以下仅以Z操作臂7进行说明。如图3所示，手柄72固定安装在螺杆73上；导轨74包括导向杆741、刻度杆742和腰形接头743。导向杆741起导向作用；刻度杆742上设置了刻度，可同时用于导向和读数；腰形接头743上设置了通孔，螺杆73从通孔穿过。导向杆741、刻度杆742和腰形接头743连接形成一体的框架。
游标座71上设置了三个通孔，导向杆741、刻度杆742和螺杆73从通孔穿过，导向杆741和刻度杆742穿过的通孔的内壁是光滑的，螺杆73穿过的通孔的内臂设置有螺纹，该螺纹与螺杆73咬合。当旋转手柄72时，螺杆73与导轨74的相对位置不变，游标座71和螺杆73通过螺纹咬合产生相对轴向移动，即游标座71和导轨74之间产生相对轴向移动。
如图3所示，当旋转手柄72时，在手柄72和腰形接头743之间、螺杆73和腰形接头743之间会产生滑动摩擦，导致操纵操作臂时较为费力。
申请内容
本申请实施例提供一种操作臂，旨在解决现有技术中操纵操作臂时较为费力的问题。
第一方面，提供了一种操作臂，包括：
螺杆（73）；
固定安装在所述螺杆（73）上的手柄（72）；以及
包括导向杆（741）、刻度杆（742）和腰形接头（743）的导轨（74）；
其中，所述导向杆（741）、所述刻度杆（742）和所述腰形接头（743）连接形成一体的框架，所述腰形接头（743）上设有通孔，所述螺杆（73）从所述通孔穿过，在所述手柄（72）与所述腰形接头（743）之间和/或所述螺杆（73）与所述腰形接头（743）之间设置有滚动轴承（75）。
第二方面，提供了一种脑立体定位仪，包括上述描述的操作臂。
本申请实施例在操作臂的手柄与腰形接头之间和螺杆与腰形接头之间设置滚动轴承，在旋转手柄时，手柄与腰形接头之间、螺杆与腰形接头之间为滚动摩擦，操纵操作臂时较为省力。
附图说明
本申请上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1是现有技术中脑立体定位仪的主视图；
图2是现有技术中脑立体定位仪的俯视图；
图3是现有技术提供的脑立体定位仪的Z操作臂7的剖面图；
图4是本申请实施例一提供的操作臂的剖面图；
图5是本申请实施例二提供的操作臂的剖面图；
图6是本申请实施例三提供的操作臂的剖面图。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的模块或具有相同或类似功能的模块。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。相反，本申请的实施例包括落入所附加权利要求书的精神和内涵范围内的所有变化、修改和等同物。
在对动物的脑部进行定位的过程中，需要先拨开动物的头皮，然后将脑立体定位仪上的探针移动到动物脑部颅骨表面一个明显的点，该点是在动物头皮拨开后露出的一个在生理结构上非常容易观测的点。以该点为零点，根据国际公认的动物脑图谱进行相应的计算，得到所需要定位点的X轴坐标值、Y轴坐标值和Z轴坐标值，然后移动脑立体定位仪的X操作臂5、Y操作臂6和Z操作臂7可以将探针从零点移动到定位点。在上述定位过程中，需要实验者多次操纵操作臂。
实施例一
图4是本申请实施例一提供的操作臂的剖面图。结合图3和图4，该操作臂包括手柄72、螺杆73、导轨74以及滚动轴承75。
手柄72固定安装在螺杆73上。导轨74包括导向杆741、刻度杆742和腰形接头743。导向杆741、刻度杆742和腰形接头743连接形成一体的框架，即这三者形成一固定的框架。其中，导向杆741起导向作用；刻度杆742上设置了刻度，可同时用于导向和读数；腰形接头743上设有通孔，螺杆73从通孔穿过。滚动轴承75设置在手柄72与腰形接头743之间，或者设置在螺杆73与腰形接头743之间，或者在上述两个位置均设置滚动轴承75。
在本申请实施例中，在上述两个位置均设置滚动轴承75。优选地，滚动轴承75为滚珠。腰形接头743的上表面和下表面为平面，在手柄72与腰形接头743的上表面之间和螺杆73与腰形接头743的下表面之间设置滚珠。在旋转手柄72时，手柄72与腰形接头743的上表面之间、螺杆73与腰形接头743的下表面之间为滚动摩擦。
本申请实施例在操作臂的手柄与腰形接头之间和螺杆与腰形接头之间设置滚珠，在旋转手柄时，手柄与腰形接头之间、螺杆与腰形接头之间为滚动摩擦，操纵操作臂时较为省力。
实施例二
图5为本申请实施例二提供的操作臂的剖面图，结合图3和图5，该操作臂包括手柄72、螺杆73、导轨74以及滚动轴承75。
在本申请实施例中，操作臂的基本结构与实施例一相同，与实施例一相同的各部件沿用与实施例一相同的标号，包括在实施例一中描述的全部特征，在此不再赘述。
在本申请实施例中，优选地，滚动轴承75为推力球轴承。该推力球轴承包括第一滚道圈751、钢球保持架752和第二滚道圈753。第一滚道圈751与腰形接头743接触，第二滚道圈753与手柄2、螺杆73接触。腰形接头743的上表面和下表面为平面，在手柄72与腰形接头743的上表面之间和螺杆73与腰形接头743的下表面之间设置推力球轴承。手柄72、滚动轴承75和腰形接头743之间做压紧处理，螺杆73、滚动轴承75和腰形接头743之间做压紧处理。在旋转手柄72时，第一滚道圈751与腰形接头743之间不产生相对运动，第二滚道圈753与手柄72、螺杆73之间不产生相对运动，相当于手柄72与腰形接头743的上表面之间、螺杆73与腰形接头743的下表面之间为滚动摩擦。
本申请实施例在操作臂的手柄与腰形接头之间和螺杆与腰形接头之间设置推力球轴承，在旋转手柄时，手柄与腰形接头之间、螺杆与腰形接头之间为滚动摩擦，操纵操作臂时较为省力。
实施例三
图6为本申请实施例三提供的操作臂的剖面图，结合图3和图6，该操作臂包括手柄72、螺杆73、导轨74以及滚动轴承75。
在本申请实施例中，操作臂的基本结构与实施例一相同，与实施例一相同的各部件沿用与实施例一相同的标号，包括在实施例一中描述的全部特征，在此不再赘述。
在本申请实施例中，腰形接头743的上表面和下表面设有凹槽，在手柄72与腰形接头743上表面的凹槽之间、螺杆73与腰形接头743下表面的凹槽之间设置滚动轴承75。在旋转手柄72时，手柄72与腰形接头743之间、螺杆73与腰形接头743之间为滚动摩擦。
该凹槽可容纳滚动轴承75即可，对其形状不做限定。将滚动轴承75设于腰形接头743的凹槽内，使得操作臂在整体结构上更为美观。
进一步地，在手柄72和滚动轴承75之间设置弹性垫圈76，并且弹性垫圈76处于压缩状态。在旋转手柄72时，手柄72与弹性垫圈76之间不产生相对运动，相当于手柄72与腰形接头743之间仍然为滚动摩擦，而且提高了手柄72和滚动轴承75的使用寿命。
本申请实施例在操作臂的手柄与腰形接头的凹槽之间和螺杆与腰形接头的凹槽之间设置滚动轴承和弹性垫圈，在旋转手柄时，手柄与腰形接头之间、螺杆与腰形接头之间为滚动摩擦，操纵操作臂时较为省力，而且提高了各部件的使用寿命。
实施例四
脑立体定位仪包括三个基本结构相同的操作臂，该操作臂如上述实施例一至实施例三描述的任一种。
本申请实施例在操作臂的手柄与腰形接头之间和螺杆与腰形接头之间设置滚动轴承，在旋转手柄时，手柄与腰形接头之间、螺杆与腰形接头之间为滚动摩擦，操纵操作臂时较为省力。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种操作臂，其特征在于，包括：
    螺杆（73）；
    固定安装在所述螺杆（73）上的手柄（72）；以及
    包括导向杆（741）、刻度杆（742）和腰形接头（743）的导轨（74）；
    其中，所述导向杆（741）、所述刻度杆（742）和所述腰形接头（743）连接形成一体的框架，所述腰形接头（743）上设有通孔，所述螺杆（73）从所述通孔穿过，在所述手柄（72）与所述腰形接头（743）之间和/或所述螺杆（73）与所述腰形接头（743）之间设置有滚动轴承（75）。
  2. 根据权利要求1所述的操作臂，其特征在于，所述滚动轴承（75）为滚珠。
  3. 根据权利要求1所述的操作臂，其特征在于，所述滚动轴承（75）为推力球轴承。
  4. 根据权利要求3所述的操作臂，其特征在于，所述推力球轴承包括第一滚道圈（751）、钢球保持架（752）和第二滚道圈（753）。
  5. 根据权利要求4所述的操作臂，其特征在于，所述手柄（72）、所述滚动轴承（75）和所述腰形接头（743）之间做压紧处理，和/或，所述螺杆（73）、所述滚动轴承（75）和所述腰形接头（743）之间做压紧处理。
  6. 根据权利要求1-5任一项所述的操作臂，其特征在于，在所述手柄（72）与所述腰形接头（743）之间和/或所述螺杆（73）与所述腰形接头（743）之间设置滚动轴承（75）具体为：
    所述腰形接头（743）的上表面和下表面为平面，在所述手柄（72）与所述腰形接头（743）的上表面之间和/或所述螺杆（73）与所述腰形接头（743）的下表面之间设置滚动轴承（75）。
  7. 根据权利要求1-5任一项所述的操作臂，其特征在于，在所述手柄（72）与所述腰形接头（743）之间和/或所述螺杆（73）与所述腰形接头（743）之间设置滚动轴承（75）具体为：
    所述腰形接头（743）的上表面和/或下表面设有凹槽，在所述手柄（72）与所述腰形接头（743）上表面的凹槽之间和/或所述螺杆（73）与所述腰形接头（743）下表面的凹槽之间设置滚动轴承（75）。
  8. 根据权利要求1-5任一项所述的操作臂，其特征在于，在所述手柄（72）和所述滚动轴承（75）之间设置弹性垫圈（76）。
  9. 根据权利要求8所述的操作臂，其特征在于，所述弹性垫圈（76）处于压缩状态。
  10. 一种脑立体定位仪，其特征在于，所述脑立体定位仪包括如权利要求1-9任一项所述的操作臂。
PCT/CN2020/105093 2019-12-22 2020-07-28 一种操作臂及脑立体定位仪 WO2021128836A1 (zh)

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