WO2012079450A1 - 脑部电极导线固定辅助装置 - Google Patents

脑部电极导线固定辅助装置 Download PDF

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Publication number
WO2012079450A1
WO2012079450A1 PCT/CN2011/082868 CN2011082868W WO2012079450A1 WO 2012079450 A1 WO2012079450 A1 WO 2012079450A1 CN 2011082868 W CN2011082868 W CN 2011082868W WO 2012079450 A1 WO2012079450 A1 WO 2012079450A1
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Prior art keywords
auxiliary device
brain electrode
groove
device body
plug
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PCT/CN2011/082868
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English (en)
French (fr)
Inventor
印卫忠
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苏州景昱医疗器械有限公司
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Publication of WO2012079450A1 publication Critical patent/WO2012079450A1/zh

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/02Details
    • A61N1/04Electrodes
    • A61N1/05Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/0526Head electrodes
    • A61N1/0529Electrodes for brain stimulation
    • A61N1/0539Anchoring of brain electrode systems, e.g. within burr hole

Definitions

  • This invention relates to the field of implantable medical systems, and more particularly to a fixation aid for securing a brain electrode lead or other catheter or the like to a skull during an implant procedure of an implantable medical system.
  • Implantable medical systems typically include an implantable neurostimulation system, an implantable cardiac electrical stimulation system (commonly known as a cardiac pacemaker), and an implantable drug infusion system.
  • the implantable nerve electrical stimulation system includes deep brain electrical stimulation DBS, implanted cortical stimulation CNS, implantable spinal cord electrical stimulation SCS, implantable phrenic nerve stimulation SNS, and implantable vagal nerve stimulation VNS.
  • an implantable nerve electrical stimulation system mainly includes a pulse generator, an electrode, and an external control device implanted in the body.
  • the pulse generator is connected to the electrode, so that the pulse generated by the pulse generator is transmitted to the electrode, and the pulse signal generated by the pulse generator is transmitted from the electrode to the heart or a specific nerve part for electrical stimulation, so that the human body function returns to normal.
  • the state of operation mainly includes a pulse generator, an electrode, and an external control device implanted in the body.
  • the doctor first determines the target position of the patient's brain through a three-dimensional positioning device.
  • the doctor opens a small hole in the patient's skull according to the target position, and inserts the brain electrode lead into the brain through the skull hole.
  • the doctor uses the test stimulator to test the implant target. If the stimulation treatment is ideal, the brain electrode lead is reliably fixed on the skull using a fixture.
  • the brain electrode wire fixing device in US Pat. No. 4,328,813 usually includes a skull ring and a skull cover. After the brain electrode wire is inserted into the aneurysm ring, the skull cover closes the skull ring on the skull ring, and the brain electrode wire is Clamped between the skull cover and the skull ring, the brain electrode lead is fixed to the skull by the friction between the brain electrode wire and the skull ring and the skull cover.
  • the upper skull plug and the brain electrode wire fixation aid for facilitating the accurate and reliable insertion of the skull plug into the hole of the anesthesia ring.
  • there is no such dedicated brain electrode wire fixing auxiliary device which is manually performed by the doctor himself, and the operation space of the doctor during the operation is relatively narrow, which is extremely inconvenient.
  • the technical problem to be solved by the present invention is to provide a fixing auxiliary device that facilitates the doctor to reliably fix the anesthesia plug in the skull ring during the operation.
  • a brain electrode lead fixing auxiliary device includes an auxiliary device body, and a lower end of the auxiliary device body extends downward to form a cranial plug lower pressing portion protruding from the auxiliary device body.
  • the cranial plug lower pressing portion cooperates with the upper surface of the cranial plug to insert the annoying plug into the hole of the skull ring.
  • the intrusion lower pressing portion includes a boss extending downwardly from the auxiliary device body and at least one bump disposed on the boss.
  • the physician can use the fixation aid of the present invention to securely fix the puncture plug into the cranial annulus in a relatively small space.
  • the doctor pulls out the lead pin, and the cranial plug immediately grips the electrode lead so that the electrode lead is not displaced in the horizontal direction and the vertical direction, and the electrode lead is firm and Accurate positioning at the specified target position avoids the doctor's target shift during the operation of the closed skull ring, making the entire surgical procedure easy to operate.
  • Figure 2 is a right side view of Figure 1;
  • Figure 4 is a schematic perspective view of the present invention.
  • Figure 7 is a cross-sectional view taken along line A-A of Figure 5;
  • Figure 8 is a schematic view showing the structure of the present invention combined with a skull plug and a skull ring;
  • auxiliary device body 10, brain electrode wire fixing auxiliary device; 20, auxiliary device body; 201, slot; 202, first side; 203, second side; 204, first tail clip; 205, second tail clip; Limiting bulge; 30, cranial plug lower pressure; 301, boss; 302, bump; 40, cranial plug; 50, skull ring.
  • a brain electrode lead fixing assisting device 10 includes an auxiliary device body 20, and a lower end of the auxiliary device body 20 extends downward to form a cranial plug which is extended from the auxiliary device body 20.
  • the vaginal plug lower pressing portion 30 cooperates with the upper surface of the sinus plug 40 to insert the vaginal plug 40 into the hole of the skeletal ring 50.
  • the auxiliary device body 20 is provided with a groove 201 penetrating through the cranial plug lower pressing portion 30, and one end of the groove 201 extends to the edge of the auxiliary device body 20.
  • the groove 201 is a linear groove, and in other embodiments, the groove 201 may also be a curved groove or a cross-line groove.
  • the vaginal plug lower pressing portion 30 includes a boss 301 that projects downwardly from the auxiliary device body 20 and at least one bump 302 that is disposed on the boss 301.
  • the boss 301 is cylindrical, and the diameter of the boss 301 is substantially the same as the diameter of the cranial plug 40.
  • the bumps 302 are four and are uniformly distributed on the circular bottom surface of the boss 301 for matching the four concave points on the upper surface of the cranial plug 40 for the doctor to take the cranial plug 0. .
  • other methods may be used to match the skull plug. For example, change the shape and number of bumps.
  • the first side surface 202 and the second side surface 203 extend away from the side opening direction away from the groove 201 to form a first tail clip portion 204 and a second tail clip portion 205 for opening the groove 201.
  • the doctor can pinch the first tail clip 204 and the second tail clip portion 205 with the thumb and forefinger to open the slot 201, so that the lead pin Sandwiched in the slot 201.
  • the opposite inner side walls of the first tail clamp portion 204 and the second tail clamp portion 205 respectively have a limiting protrusion 206 for preventing the groove from being excessively enlarged.
  • the manufacturing material of the brain electrode wire fixing auxiliary device of the present invention is engineering plastic. Or a flexible metal material.
  • the doctor first inserts the skull ring 50 into the patient's skull opening. After the patient is firmly attached, the doctor inserts the lead pin into position. At this time, the lead pin is fixed with a special clamp, and the nerve stimulation electrode wire is inserted into the inner hole of the lead pin. Pre-calculated depth. Referring to FIGS. 5-7, after the doctor adjustment test is completed, the doctor first pinches the concave surface 204 on the first side 202 and the second side 203 to insert the four bumps 302 on the boss 301 into the upper surface of the anesthesia plug 40.
  • the anesthesia plug 40 to the cranial plug lower pressing portion 30, and then the doctor's finger firmly grips the first tail clip portion 204 and the second tail clip portion 2054, and the slot 201 is opened. Since the cranial plug 40 also has a through-side groove corresponding to the groove 201, the through-edge groove on the anesthesia plug 40 is also simultaneously opened, and the doctor clips the lead pin containing the electrode lead to the cranial plug in a good position. 40 and the inside of the auxiliary device body 20, the user's main body 20 is pinched by hand and pressed downwards. Referring to FIG. 8 to FIG. 10, the skull plug 40 and the skull ring 50 are fully fitted into position, and the skull ring 50 is completely blocked by the bone plug 40. shut down.

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  • Health & Medical Sciences (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Psychology (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrotherapy Devices (AREA)

Description

脑部电极导线固定辅助装置
技术领域
本发明涉及植入式医疗系统领域, 尤其是植入式医疗系统的植入手术过程 中用于将脑部电极导线或其他导管等固定在颅骨上的固定辅助装置。
背景技术
植入式医疗系统通常包括植入式神经电刺激系统、 植入式心脏电刺激系统 (俗称心脏起搏器)、植入式药物输注系统。其中,植入式神经电刺激系统包括 脑深部电刺激 DBS, 植入式脑皮层刺激 CNS, 植入式脊髓电刺激 SCS, 植入式 骶神经电刺激 SNS, 植入式迷走神经电刺激 VNS等。
以植入式神经电刺激系统为例, 主要包括植入体内的脉冲发生器、 电极以 及体外的控制装置。 其中, 脉冲发生器与电极相连接, 从而将脉冲发生器所产 生的脉冲传输到电极, 脉冲发生器产生的脉冲信号由电极传输至心脏或特定神 经部位进行电刺激, 从而使人体机能恢复到正常运作的状态。
病人在植入手术过程中, 医生首先要通过三维立体定位装置确定病人脑部 的靶点位置, 医生根据靶点位置在病人的颅骨上开出小孔, 将脑部电极导线经 颅骨孔插入脑部靶点, 医生使用测试刺激器对植入靶点进行测试, 如刺激治疗 效果理想则将脑部电极导线使用固定装置可靠地固定在颅骨上。
现有技术中, 如美国专利 US4328813 中的脑部电极导线固定装置通常包括 颅骨环和颅骨盖,脑部电极导线插入烦骨环后颅骨盖盖在颅骨环上关闭颅骨环, 脑部电极导线被夹紧在颅骨盖与颅骨环之间, 通过脑部电极导线与颅骨环和颅 骨盖之间的摩擦力从而将脑部电极导线固定在颅骨上。
然而, 医生在手术过程中在插入引线针时以及在引线针取走后, 由于脑部 电极导线没有固定住, 在取出导线内的导丝后直接用颅骨盖把导线压在颅骨环 上, 此时易导致导线产生偏移及导致导线在深度位置的变化, 使电极插入的位 置偏离靶点将手术变得复杂致使治疗效果不理想。 并且, 由于在病人的头皮部 又增加了一层颅骨盖, 使得整个固定装置的高度过高, 易导致病人不适且不美 因此亟需一种能够使电极导线在水平面上可靠固定地在颅骨环上的颅骨塞 以及便于将该颅骨塞准确可靠地塞入烦骨环的孔内的脑部电极导线固定辅助装 置。 现有技术中尚无这种专用的脑部电极导线固定辅助装置, 均由医生自己手 动完成, 并且医生在手术过程中的操作空间较为狭窄操作极为不便。
发明内容
针对现有技术中存在的不足, 本发明要解决的技术问题是提供一种便于医 生在手术过程中将烦骨塞可靠固定在颅骨环内的固定辅助装置。
根据本发明所提供的技术方案, 一种脑部电极导线固定辅助装置, 包括辅 助装置本体, 所述辅助装置本体的下端向下延伸形成伸出所述辅助装置本体的 颅孔塞下压部, 所述颅孔塞下压部与颅孔塞的上表面相配合用于将烦孔塞塞入 颅骨环的孔内。
优选地, 所述辅助装置本体上开设有贯穿颅孔塞下压部的槽, 所述槽的一 端延伸至辅助装置本体的边缘。
优选地, 所述辅助装置本体的外侧表面由所述的槽分为第一侧面和第二侧 面, 所迷第一侧面和第二侧面的两相对部分上具有便于手指捏持的凹面。
优选地, 所迷烦孔塞下压部包括向下伸出辅助装置本体的凸台及设置在所 述凸台上的至少一个凸点。
优选地, 所述第一侧面和第二侧面向远离所述槽的侧面开口方向延伸形成 用于张开所述槽的第一尾夹部和第二尾夹部。 优选地, 所述槽为直线槽、 曲线槽或交叉线槽。
优选地, 所述凸台为圆柱形, 所述凸点为 4个且均匀分布在凸台的圆形底 面上。
优选地, 所述第一尾夹部和第二尾夹部的两相对内侧壁上均具有防止所述 槽过度张大的限位凸起。
优选地, 所述脑部电极导线固定辅助装置的制作材料为工程塑料或具有弹 性的金属材料。
与现有技术相比本发明的优点是: 在手术过程中医生能够在较为狭小的空 间内使用本发明中的固定辅助装置将烦孔塞可靠地下压固定至颅孔环内。 当电 极导线通过引线针到达指定靶点后, 医生将引线针拔出, 此时颅孔塞立即抱紧 夹住电极导线使电极导线在水平方向及竖直方向上无位移, 将电极导线牢固且 准确地定位在指定的靶点位置, 避免了医生在封闭颅骨环操作过程中产生靶点 偏移的现象, 使得整个手术操作过程便于操作。
附图说明
附图 1为本发明的结构示意图;
附图 2为附图 1的右视图;
附图 3为附图 1的仰视图;
附图 4为本发明的立体结构示意图;
附图 5为本发明与颅骨塞结合的结构示意图;
附图 6为附图 5的横向剖视示意图;
附图 7为附图 5中 A-A方向剖视示意图;
附图 8为本发明与颅骨塞、 颅骨环结合的结构示意图;
附图 9为附图 8的横向剖视示意图; 附图 10为附图 8中 B-B方向剖视示意图;
其中:
10、 脑部电极导线固定辅助装置; 20、 辅助装置本体; 201、 槽; 202、 第一 侧面; 203、 第二侧面; 204、 第一尾夹部; 205、 第二尾夹部; 206、 限位凸起; 30、 颅孔塞下压部; 301、 凸台; 302、 凸点; 40、 颅孔塞; 50、 颅骨环。
具体实施方式
下面结合附图对本发明作进一步详细的说明:
参照图 1至图 4, 一种脑部电极导线固定辅助装置 10, 包括辅助装置本体 20,所述辅助装置本体 20的下端向下延伸形成伸出所述辅助装置本体 20的颅孔 塞下压部 30, 所述烦孔塞下压部 30与颅孔塞 40的上表面相配合用于将烦孔塞 40塞入烦骨环 50的孔内。
所述辅助装置本体 20上开设有贯穿颅孔塞下压部 30的槽 201, 所述槽 201 的一端延伸至辅助装置本体 20的边缘。 本实施方式中所述槽 201为直线槽, 在 其他的一些实施方式中槽 201也可为曲线槽或交叉线槽。
所述辅助装置本体 20的外侧表面由所述的槽 201分为第一侧面 202和第二 侧面 203, 所述第一侧面 202和第二侧面 203的两相对部分上具有便于手指捏持 的凹面 204, 便于医生单手的拇指和食指捏持, 当然为了增大手指与凹面 204之 间的摩擦力也可以在凹面 204上设置多个浅槽。
所述烦孔塞下压部 30包括向下伸出辅助装置本体 20的凸台 301及设置在所 述凸台 301上的至少一个凸点 302。 所述凸台 301为圆柱形, 凸台 301的直径与 颅孔塞 40的直径大致相同。 本实施方式中所迷凸点 302为 4个且均勾分布在凸 台 301的圆形底面上, 用于与颅孔塞 40上表面的 4个凹点相匹配便于医生取放 颅孔塞 0。 当然在其他的实施方式中也可采取其他方式与颅骨塞相匹配连接, 例如改变凸点的形状及个数。
所述第一侧面 202和第二侧面 203向远离所述槽 201的侧面开口方向延伸形 成用于张开所述槽 201的第一尾夹部 204和第二尾夹部 205。 以第一尾夹部 204 和第二尾夹部 205 之间的连接部为支点, 医生可用拇指和食指捏着第一尾夹部 204和第二尾夹部 205张开槽 201,使引线针夹在槽 201内。所述第一尾夹部 204 和第二尾夹部 205 的两相对内侧壁上均具有防止所述槽过度张大的限位凸起 206ο 本发明脑部电极导线固定辅助装置的制作材料为工程塑料或具有弹性的金 属材料。
以下将详细介绍医生使用该固定辅助装置固定 孔塞的过程:
首先, 医生先把颅骨环 50插入病人的颅骨开口处, 配合牢固后医生将引线 针插入到位, 此时用专用夹具将引线针固定, 再把神经刺激电极导线从引线针 的内孔中插入到预先计算好的深度。 参照图 5至图 7, 医生调整测试完成后, 医 生先捏着第一侧面 202和第二侧面 203上的凹面 204将凸台 301上的 4个凸点 302 插入烦骨塞 40上表面上的四个对应的凹槽, 使烦骨塞 40连接在颅孔塞下压部 30上, 然后医生手指用力捏住第一尾夹部 204和第二尾夹部 2054吏槽 201张开, 此时由于颅骨塞 40上也开有与槽 201相对应的通边槽,因此烦骨塞 40上的通边 槽也同时张开, 医生把对好位置的包含有电极导线的引线针夹在颅骨塞 40及辅 助装置本体 20的内部, 用手捏住辅助装置本体 20用力向下压, 参照图 8至图 10,使得颅骨塞 40与颅骨环 50完全配合到位,颅骨环 50被烦骨塞 40完全关闭。
接着, 医生可以直接沿着引线针的轴向方向取出引线针, 而脑部电极导线 由于被具有弹性的颅骨塞 0紧紧固定住, 且能有效的保持住这个位置, 不会产 出平面或轴向上的偏移。 与现有技术相比, 使得医生能够在较为有限的空间内 使用该专用的固定辅助装置快速方便的将烦骨塞插入并可靠固定在颅骨环内, 并且, 在引线针取走及取出导线内的导丝后, 刺激导线也被烦骨塞加紧防止导 致导线产生在水平及竖直方向上的位移, 操作较为方便。
本发明还可有其他多种实施例, 在不背离本发明精神及实质的情况下, 本 领域的技术人员可根据本发明作出各种相应的改变和变形, 但这些相应的改变 和变形都应属于本发明的权利要求保护的范围。

Claims

权 利 要 求 书
1、 一种脑部电极导线固定辅助装置, 其特征在于: 包括辅助装置本体, 所 述辅助装置本体的下端向下延伸形成伸出所述辅助装置本体的颅孔塞下压部, 所述烦孔塞下压部与颅孔塞的上表面相配合用于将烦孔塞塞入烦骨环的孔内。
2、 根据权利要求 1所述的脑部电极导线固定辅助装置, 其特征在于: 所迷 辅助装置本体上开设有贯穿颅孔塞下压部的槽, 所述槽的一端延伸至辅助装置 本体的边缘。
3、 根据权利要求 2所述的脑部电极导线固定辅助装置, 其特征在于: 所述 辅助装置本体的外侧表面由所迷的槽分为第一侧面和第二侧面, 所述第一侧面 和第二侧面的两相对部分上具有便于手指捏持的凹面。
4、 根据权利要求 2所述的脑部电极导线固定辅助装置, 其特征在于: 所迷 颅孔塞下压部包括向下伸出辅助装置本体的凸台及设置在所述凸台上的至少一 个凸点。
5、 根据权利要求 3所迷的脑部电极导线固定辅助装置, 其特征在于: 所述 第一侧面和第二侧面向远离所迷槽的侧面开口方向延伸形成用于张开所述槽的 第一尾夹部和第二尾夹部。
6、 根据权利要求 2所述的脑部电极导线固定辅助装置, 其特征在于: 所述 槽为直线槽、 曲线槽或交叉线槽。
7、 根据权利要求 4所迷的脑部电极导线固定辅助装置, 其特征在于: 所述 凸台为圆柱形, 所述凸点为 4个。
8、 根据权利要求 5所述的脑部电极导线固定辅助装置, 其特征在于: 所述 第一尾夹部和第二尾夹部的两相对内侧壁上均具有防止所迷槽过度张大的限位 凸起。
9、 根据权利要求 1所述的脑部电极导线固定辅助装置, 其特征在于: 所迷 脑部电极导线固定辅助装置的制作材料为工程塑料或具有弹性的金属材料。
PCT/CN2011/082868 2010-12-15 2011-11-24 脑部电极导线固定辅助装置 WO2012079450A1 (zh)

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CN208943267U (zh) * 2018-03-01 2019-06-07 苏州景昱医疗器械有限公司 含螺钉导向结构的电极固定辅助装置及该螺钉导向结构
CN108325070A (zh) * 2018-04-20 2018-07-27 北京品驰医疗设备有限公司 一种医疗器械固定装置
CN108325072A (zh) * 2018-04-20 2018-07-27 北京品驰医疗设备有限公司 一种医疗器械固定装置
US20220386778A1 (en) * 2019-11-28 2022-12-08 Suzhou Sceneray Co., Ltd. Auxiliary tool for surgery
CN114832233B (zh) * 2022-06-29 2022-09-27 苏州景昱医疗器械有限公司 一种颅孔电极固定装置

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