WO2009100633A1 - 磁场刺激器管形内冷线圈 - Google Patents

磁场刺激器管形内冷线圈 Download PDF

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Publication number
WO2009100633A1
WO2009100633A1 PCT/CN2008/071850 CN2008071850W WO2009100633A1 WO 2009100633 A1 WO2009100633 A1 WO 2009100633A1 CN 2008071850 W CN2008071850 W CN 2008071850W WO 2009100633 A1 WO2009100633 A1 WO 2009100633A1
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WO
WIPO (PCT)
Prior art keywords
coil
magnetic field
cooling
field stimulator
tubular
Prior art date
Application number
PCT/CN2008/071850
Other languages
English (en)
French (fr)
Inventor
Yihua Sun
Weixin Yu
Jiahua Liao
Jiali Liao
Original Assignee
Wuhan Yiruide Medical Equipment Co., Ltd.
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 Wuhan Yiruide Medical Equipment Co., Ltd. filed Critical Wuhan Yiruide Medical Equipment Co., Ltd.
Publication of WO2009100633A1 publication Critical patent/WO2009100633A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N2/00—Magnetotherapy
    • A61N2/02—Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2876—Cooling

Definitions

  • the utility model relates to a stimulating beat coil in a magnetic field stimulator in the medical field, which is used for solving the problem that a strong pulse current in a "magnetic field stimulator" causes heat dissipation of a coil when stimulating a beat coil.
  • the problem of heat dissipation of the stimuli coil of the magnetic field stimulator is solved.
  • the method of insulating liquid or external cooling of the air is used, that is, the magnetic field stimulator stimulates the coil to be placed in a specific container (usually stimulating the inner cavity), insulating liquid or air.
  • the heat of the outer surface of the coil is taken away to achieve the purpose of cooling.
  • the conventional external cooling method has the following disadvantages: the coils need to be insulated and closely adhered, and the exposed area is small. When the insulating liquid or air stimulates the inner cavity of the coil, the heat of the outer surface of the coil is limited, and the cooling effect is poor; When cooling, it is required to stimulate the inner cavity to have high sealing performance. Especially when distilled water is used as the medium, the water pressure is low, the flow rate is not enough, the cooling effect is poor, and the water pressure is high to solve the flow problem, but the seal that stimulates the inner cavity becomes large. problem. Summary of the invention
  • the purpose of the utility model is to provide a tubular inner cooling coil of a magnetic field stimulator, which has the advantages of simple structure and good heat dissipation effect, and the inner cooling coil can solve the disadvantages of the traditional coil being easy to generate heat and short in life, and the magnetic field coil is improved.
  • the service life enhances the efficiency of the coils used.
  • a magnetic field stimulator tubular inner cooling coil wherein: the coil wire is a pipe material, the inner hole of the pipe is filled with a flowing cooling medium, an insulating liquid medium or It is the heat that takes away the coil when the gas medium passes through the inner wall of the coil pipe.
  • the magnetic field stimulator tubular inner cooling coil as described above is characterized in that the coil has a double-layered spiral structure.
  • the magnetic field stimulator tubular inner cooling coil as described above is characterized in that the coil has a tubular section of a circular shape, an elliptical shape, a square shape or a rectangular shape.
  • the magnetic field stimulator tubular inner cooling coil as described above is characterized in that the cooling medium is an insulating liquid or a gas.
  • the utility model has the beneficial effects that: the heat dissipation area of the stimulating coil is enlarged, the heat dissipation effect is greatly improved; the sealing of the inner cavity is not required to be stimulated; the insulating liquid medium or the gas medium can be respectively selected to form two closed and open cooling systems. . DRAWINGS
  • FIG. 1 is a view showing a free state of a coil of an embodiment of the present invention.
  • Figure 2 is a perspective view of the coil of Figure 1.
  • Fig. 3 is a view showing the state of use of "Example 1" of Fig. 1 - a schematic diagram of cooling of an insulating liquid.
  • Fig. 4 is a view showing the state of use of "Example 2" of Fig. 1 - a gas cooling diagram. Detailed ways
  • Winding of the coil As shown in Fig. 1 and Fig. 2, the tubular profile serving as the wire is first selected, and then the tubular profile is wound into a free shape as shown in Fig. 1 by a special jig, and then the shape shown in Fig. 1 is An external force is applied to the coil, and the coil of the shape shown in Fig. 1 is flattened into the shape shown in Fig. 2.
  • the coil of this embodiment has a double-layered spiral structure, which has the advantage of increasing the heat dissipation area of the coil.
  • the shape of the coil is circular, and the circular shape has the advantages of simple molding and low flow resistance of the cooling medium.
  • Elliptical, square or rectangular shapes can also be used.
  • the advantages of elliptical shape are: simple molding, easy control of the overall size of the coil, and low flow resistance of the cooling medium.
  • the advantages of a square or a rectangle are: The molding is simpler and the overall size of the coil is easy to control.
  • Embodiment 1 of the present invention is a closed internal cooling system composed of a tubular chiller coil inner cooling coil, characterized in that: the wire of the spiral coil 1 is a pipe, the inner hole 3 of the pipe is filled with a flowing liquid cooling medium, and the cooling medium flow When the spiral coil 1 is passed, the heat of the inner wall of the pipe is taken away to achieve the purpose of cooling the coil.
  • the closed cooling system of the liquid medium is shown in Fig. 3.
  • the liquid is sucked by the pump 5, flows through the spiral coil 1, and finally flows back to the container 6.
  • the heat of the spiral coil 1 is carried away by the inflow and outflow of the liquid.
  • the cooling medium is a liquid, because it is a closed system liquid medium can be recycled.
  • the magnetic field stimulator tubular inner cooling coil of the second embodiment of the present invention is the same as that of the above-described example 1, except that it is cooled using a gaseous medium.
  • the open cooling system of the gas medium is as shown in Fig. 4.
  • the flow control valve 8 is used to control the flow rate of the high-pressure gas flowing through the spiral coil 1, and the gas medium flows through the spiral coil 1 to take away the heat of the inner wall of the pipe to achieve the purpose of cooling the coil. The gas is finally discharged into the atmosphere.
  • the cooling area of the external cooling method is about the area of the non-working surface of the stimuli
  • the cooling area of the inner cooling method is the multiplication effect of the inner circumference of the cross section of the coil and the length of the spiral.
  • a closed cooling system for a coil a cooling system consisting of distilled water or deionized water and oil, pumps, vessels, piping and internal cooling coils.
  • the open cooling system of the coil a cooling system consisting of cold air or liquid nitrogen and dry water, flow regulators, piping and internal cooling coils.
  • the cooling medium of the coil is fluid, that is, distilled water, deionized water, oil or cold air, liquid nitrogen and dry water.

Description

磁场刺激器管形内冷线圈 技术领域
本实用新型涉及医疗领域的磁场刺激器中的刺激拍线圈，用于解决"磁场 刺激器"中强大脉冲电流通过刺激拍线圈时导致线圈散热的问题。 背景技术
目前， 解决磁场刺激器的刺激拍线圈散热问题， 一般釆用绝缘液体或空 气外冷却的方法， 即将磁场刺激器刺激拍线圈置入特定容器（通常是刺激拍 的内腔），绝缘液体或空气流过刺激拍的内腔时带走线圈外表面的热量，以达 到降温的目的。
传统的外冷却方法存在如下不足： 线圈间需要绝缘而且紧密贴合， 暴露 在外的面积偏小， 绝缘液体或空气通过刺激拍的内腔时带走线圈外表面的热 量有限， 冷却效果差； 外冷却时要求刺激拍内腔的密封性高， 特别是以蒸馏 水做介质时， 水压低了流量不够， 冷却效果差， 水压高了可以解决流量问题， 但刺激拍内腔的密封就成了大问题。 发明内容
本实用新型技术的目的是提供一种磁场刺激器管形内冷线圈， 它具有结 构简单， 散热效果好的优点， 该内冷线圈能解决传统线圈易发热， 寿命短的 弊端， 提高了磁场线圈的使用寿命， 增强了使用的线圈的使用效率。
本实用新型解决其技术问题所釆用的技术方案是： 一种磁场刺激器管形 内冷线圈， 其特征在于： 线圈的导线为管材， 管材内孔充有流动的冷却介质， 绝缘液体介质或者是气体介质通过线圈管材内壁时， 带走线圈的热量。
如上所述的磁场刺激器管形内冷线圈， 其特征在于： 线圈为双层螺旋结 构。
如上所述的磁场刺激器管形内冷线圈， 其特征在于： 线圈的管形截面为 圓形、 椭圓形、 正方形或长方形。
如上所述的磁场刺激器管形内冷线圈， 其特征在于： 冷却介质为绝缘液 体或气体。 本实用新型的有益效果是： 扩大了刺激拍线圈的散热面积， 散热效果大 大提高； 无需要求刺激拍内腔的密封性； 选择绝缘液体介质或气体介质可以 分别组成封闭和开放的两种冷却系统。 附图说明
图 1是本实用新型实施例的线圈自由状态图。
图 2是图 1的线圈成型图。
图 3是图 1实施"例 1"的使用状态图——绝缘液体冷却简图。
图 4是图 1实施"例 2"的使用状态图——气体冷却简图。 具体实施方式
下面结合附图对本实用新型进一步说明：
图 1中标记的说明： 1 -螺旋线圈、 2-管壁， 3 -内孔。
图 3中标记的说明： 1 -螺旋线圈、 4-流入管道、 5-泵、 6-容器、 7-流出 管道。
图 4中标记的说明： 1-螺旋线圈， 4-流入管道， 8-流量控制阀， 9-气源， 7-流出管道。
线圈的绕制： 如图 1、 图 2所示， 首先选用充当导线的管状型材， 然后 釆用特殊夹具将管状型材绕制成图 1所示的自由形状， 然后再对图 1所示形 状的线圈施加外力， 将图 1所示形状的线圈压平成图 2所示形状。
本实施例的线圈为双层螺旋结构， 其优点是增大了线圈的散热面积。 线圈的管形为圓形， 圓形的优点是： 成型简单， 冷却介质流动阻力小。 也可以釆用椭圓形、 正方形或长方形， 椭圓形优点是： 成型简单， 线圈整体 尺寸容易控制， 冷却介质流动阻力小。正方形或长方形优点是： 成型较简单， 线圈整体尺寸容易控制。
本实用新型实施例 1是由磁场刺激器管形内冷线圈组成的封闭内冷却系 统， 其特征在于： 螺旋线圈 1的导线为管材， 管材内孔 3充有流动的液体冷 却介质， 冷却介质流过螺旋线圈 1时带走管材内壁的热量， 达到给线圈降温 的目的。
液体介质的封闭冷却系统如图 3所示， 利用泵 5将液体吸入， 流经螺旋 线圈 1 ,最后再流回容器 6。通过液体的流入和流出将螺旋线圈 1的热量带走。 冷却介质为液体， 因为是封闭系统液体介质可以循环使用。
本实用新型实施例 2的磁场刺激器管形内冷线圈与上述实例 1的相同， 不同之处是它使用气体介质冷却。
气体介质的开放冷却系统如图 4所示， 利用流量控制阀 8控制高压气体 流经螺旋线圈 1的流量， 气体介质流过螺旋线圈 1带走管材内壁的热量， 达 到给线圈降温的目的。 气体最终排入大气。
因为是开放系统， 气体介质需要补充。
在相同的条件下，釆用外冷方式其冷却面积约为刺激拍非工作面的面积， 而釆用内冷方式其冷却面积约为线圈的管材截面内周长与螺旋线长度的乘 却效果大大提高。
线圈的封闭冷却系统， 即由蒸摺水或去离子水和油、 泵、 容器、 管道和 内冷线圈组成的冷却系统。
线圈的开放冷却系统， 即由冷空气或液氮和干水、 流量调节器、 管道和 内冷线圈组成的冷却系统。
线圈的冷却介质为流体， 即蒸摺水、 去离子水、 油或冷空气、 液氮和干 水等。

Claims

权利要求书
1、 一种磁场刺激器管形内冷线圈， 其特征在于： 线圈的导线为管材， 管 材内孔充有流动的冷却介质。
2、如权利要求 1所述的管形磁场刺激器内冷线圈， 其特征在于： 线圈为 双层螺旋结构。
3、如权利要求 1或 2所述的磁场刺激器管形内冷线圈， 其特征在于： 线 圈的管形为圓形、 椭圓形、 正方形或长方形。
4、如权利要求 1或 2所述的磁场刺激器管形内冷线圈， 其特征在于： 冷 却介质为液体或气体。
5、如权利要求 4所述的磁场刺激器管形内冷线圈， 其特征在于， 冷却介 质为液体或气体， 液体为： 蒸馏水、 去离子水、 油； 气体为： 空气、 液氮和 干水。
PCT/CN2008/071850 2008-02-01 2008-08-01 磁场刺激器管形内冷线圈 WO2009100633A1 (zh)

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CN200820065592.5 2008-02-01
CNU2008200655925U CN201167011Y (zh) 2008-02-01 2008-02-01 管形磁场刺激器内冷线圈

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9272157B2 (en) 2010-05-02 2016-03-01 Nervive, Inc. Modulating function of neural structures near the ear
US9339645B2 (en) 2010-05-02 2016-05-17 Nervive, Inc. Modulating function of the facial nerve system or related neural structures via the ear
US10065047B2 (en) 2013-05-20 2018-09-04 Nervive, Inc. Coordinating emergency treatment of cardiac dysfunction and non-cardiac neural dysfunction

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947359B (zh) * 2010-09-16 2013-06-26 武汉依瑞德医疗设备新技术有限公司 一种磁场刺激器及其冷却方法
CN111905267A (zh) * 2020-08-29 2020-11-10 深圳英智科技有限公司 用于经颅磁刺激的线材、经颅磁刺激线圈和经颅磁刺激仪

Citations (3)

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Publication number Priority date Publication date Assignee Title
US6179770B1 (en) * 1998-04-25 2001-01-30 Magstim Company Limited Coil assemblies for magnetic stimulators
DE10046275A1 (de) * 2000-09-19 2002-03-28 Albrecht Struppler Magnetspule
KR20030065126A (ko) * 2002-01-31 2003-08-06 (주) 엠큐브테크놀로지 자기장을 이용한 기기의 자극코일 냉각시스템

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6179770B1 (en) * 1998-04-25 2001-01-30 Magstim Company Limited Coil assemblies for magnetic stimulators
DE10046275A1 (de) * 2000-09-19 2002-03-28 Albrecht Struppler Magnetspule
KR20030065126A (ko) * 2002-01-31 2003-08-06 (주) 엠큐브테크놀로지 자기장을 이용한 기기의 자극코일 냉각시스템

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9272157B2 (en) 2010-05-02 2016-03-01 Nervive, Inc. Modulating function of neural structures near the ear
US9339645B2 (en) 2010-05-02 2016-05-17 Nervive, Inc. Modulating function of the facial nerve system or related neural structures via the ear
US10105549B2 (en) 2010-05-02 2018-10-23 Nervive, Inc. Modulating function of neural structures near the ear
US10065047B2 (en) 2013-05-20 2018-09-04 Nervive, Inc. Coordinating emergency treatment of cardiac dysfunction and non-cardiac neural dysfunction

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