CN201469401U - Spiral renal-artery-around renal sympathetic nerve radio-frequency ablation electrode catheter - Google Patents

Spiral renal-artery-around renal sympathetic nerve radio-frequency ablation electrode catheter Download PDF

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CN201469401U
CN201469401U CN2009201729846U CN200920172984U CN201469401U CN 201469401 U CN201469401 U CN 201469401U CN 2009201729846 U CN2009201729846 U CN 2009201729846U CN 200920172984 U CN200920172984 U CN 200920172984U CN 201469401 U CN201469401 U CN 201469401U
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electrode
helical
catheter
renal artery
renal
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CN2009201729846U
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Chinese (zh)
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刘小青
杨刚
杨新春
石亮
钟光珍
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刘小青;钟光珍;杨新春;杨刚;石亮
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Abstract

The utility model discloses a spiral renal-artery-around renal sympathetic nerve radio-frequency ablation electrode catheter, which belongs to the field of the medical appliance, and comprises a bushing, an operation handle which is connected with the end of the bushing and a head-end electrode which is arranged on the front end of the bushing, wherein the end of the head-end electrode is connected with a transmission conducting wire and is arranged inside the bushing to be electrically connected with the operation handle, the head-end electrode is of a spiral structure which is formed by shaping a single electrode, the head-end electrode is preferably of a spiral structure with two helicoids which is formed by joining three sections of arcs, the diameter of each helicoid is 0.5 to 1.0 cm, the distance between the two helicoids is 0.33 cm, and the height of the head-end electrode is 1.0 cm. The catheter is arranged inside the renal artery and can be closely attached against the wall of the renal artery to form a non-annular closed-ring continuous contact with the wall of the artery, so not only all renal sympathetic nerves can be separated around the renal artery, but also the excessive damage of the renal artery can be prevented. The electrode catheter can be applied to the operation apparatus of the radio-frequency ablation blocking of the renal sympathetic nerve in the hypertension interventional therapy.

Description

螺旋状环肾动脉肾交感神经射频消融电极导管 Renal sympathetic nerve renal artery spiral ring radiofrequency catheter ablation electrode

技术领域 FIELD

[0001] 本实用新型属于医疗器械领域,具体涉及一种用于高血压介入治疗的消融电极导管。 [0001] The present invention belongs to the field of medical devices, particularly relates to a catheter for ablation electrodes interventional treatment of hypertension.

现有技术 current technology

[0002] 高血压是一常见病和多发病,成年人群中其发病率高达30-40% 。 [0002] Hypertension is a common disease, adult population the incidence rate as high as 30-40%. 虽然目前治疗高血压病的药物很多,但是仍有一部分人不能达到目标血压。 Although many drugs treat hypertension, but there are still some people can not achieve blood pressure goals. 多个试验和临床结果表明,阻断肾交感神经能够达到治疗高血压的目的,但到目前为止,仍然没有成熟的阻断肾交感神经纤维的方法和器械。 Multiple clinical trials and the results showed that renal sympathetic nerve blockade can achieve the purpose of treating hypertension, but so far, still no mature methods and devices to block the renal sympathetic nerve fibers. 早期的研究应用切除支配肾交感神经节的方法,虽能达到降压的目的, 但损伤大,并发症多。 Early research applications resection of renal sympathetic ganglia dominant method, although able to achieve the purpose of the buck, but the damage, complications. 近来,射频消融肾动脉以达到肾去交感神经的方法已经取得了初步的临床效果。 Recently, radiofrequency ablation of the renal artery in order to achieve a method of renal sympathetic denervation has achieved initial clinical results. 但是,该方法采用单点多次环绕肾动脉消融,不能确定完全阻断肾交感神经的结果,且需要多次发放射频,导管操作的要求较高。 However, this method uses multiple single point around the renal artery ablation, can not determine the result of the renal sympathetic completely blocked, and require multiple RF issue, the higher the required operation of the catheter. 目前成熟的消融阻断肾交感神经的器械尚未见详细报道。 Currently mature ablation of renal sympathetic instrument has not been reported in detail.

实用新型内容 SUMMARY

[0003] 本实用新型的目的在于提供一种能够螺旋状环肾动脉消融阻断肾交感神经支配, 能够达到一次消融,完全阻断肾脏交感神经纤维的电极导管,命名为螺旋状环肾动脉肾交感神经射频消融电极。 [0003] The object of the present invention to provide an electrode catheter capable helical ring renal artery ablation of renal sympathetic innervation, ablation time can be achieved, completely blocking renal sympathetic nerve fibers, designated as the renal artery spiral ring kidney sympathetic radiofrequency ablation electrode.

[0004] 本实用新型的电极导管,包括一套管,一与套管尾端连接的操作手柄,以及位于套管前端的头端电极。 [0004] The lead of the present invention, comprising a sleeve, a sleeve connected to the rear end of the operating handle, and the tip electrode on the distal end of the sleeve. 特点是,所述头端电极为单根电极塑形而成,由三个180。 Characterized by, the tip electrode is a single shaped electrode formed by three 180. 的弧形结构组成的螺旋状结构,每个弧形结构的长度为直径为0. 5-1. Ocm的180°弧长,弧形结构跨度(高度)为O. 33cm,螺旋状电极的纵向长度为1.0cm。 A spiral structure composed of an arcuate configuration, the length of each of the arcuate configuration with a diameter of 0. 5-1. Ocm arc length of 180 °, the arcuate span structure (height) O. 33cm, for longitudinal and spiral electrode length of 1.0cm. 弧形结构组成的螺旋状结构尾端连接传导导线,导线穿设在套管中,经尾端接口与射频消融仪相连。 Helical configuration consisting of connecting the trailing end of arcuate configuration conducting wire, the wire provided in the wear sleeve, the trailing end of the interface is connected via the RF ablation device. 套管为柔性材料制成,其与螺旋状结构连接处能够调节弯曲>90° 。 The sleeve made of a flexible material, which can be adjusted at the helical structure is connected bend> 90 °.

[0005] 采用以上技术方案,本实用新型螺旋状环肾动脉肾交感神经射频消融电极导管可经动脉放置于肾动脉内,可紧密的贴靠于肾动脉壁上,对血管壁形成一个非环状封闭环的连续接触,当发放射频消融时,可隔离沿肾动脉纵向排列的肾交感神经纤维。 [0005] With the above technical solution, the present invention is renal sympathetic nerve renal artery spiral ring radiofrequency catheter ablation electrode may be formed on the vessel wall via a non-ring placed in the renal arteries artery, tightly against the wall of the renal artery, shaped closed continuous contact ring, when issuing radiofrequency ablation, may be isolated renal sympathetic nerve fibers arranged longitudinally renal artery. 既达到了环肾动脉一周,隔离所有肾交感神经支配的目的,又不造成肾动脉的环形损伤,避免了对肾动脉的过度破坏。 Both reached the renal artery rings week quarantine purpose of all renal sympathetic innervation, without causing damage to the renal artery of the ring to avoid excessive damage to the renal arteries.

附图说明 BRIEF DESCRIPTION

[0006] 图1为本实用新型射频消融电极导管整体结构图。 [0006] Figure 1 is a radiofrequency ablation electrode catheter disclosure entire configuration FIG.

[0007] 图2显示本实用新型射频消融电极导管中头端电极的剖面结构和尺寸。 [0007] FIG. 2 shows the radiofrequency ablation invention in cross-sectional configuration and dimensions of the tip electrode lead. 具体实施方式 Detailed ways

[0008] 本实用新型的螺旋状环肾动脉交感神经射频消融电极,参见图1、2所示,包括一套管2, 一与套管2尾端连接的操作手柄3,以及位于套管2前端的头端电极1。 [0008] The present invention sympathetic nerve renal artery spiral ring electrode radiofrequency ablation, see Fig. 1 and 2, comprises a sleeve 2, the operation handle 2 connected to a trailing end of the sleeve 3, and 2 of the sleeve a front end of the tip electrode. 头端电极1呈螺旋状,由单根电极塑形而成,由三段弧线串成具有两个螺圈的螺旋状结构;每段弧线最好为180°的弧形结构,相当于一个半螺圈,每个弧形结构跨度(高度)为0.33cm。 A spiral electrode tip, by a single shaped electrode is formed by three segments strung arc having a helical structure of two spirals; preferably each segment arc of 180 ° arc structure, corresponding to a half spirals, each arcuate span structure (height) of 0.33cm. 套管2 由柔性材料制成,其与螺旋状头端电极l自然弯曲连接,弯曲角度可调节范围>90° 。 Sleeve 2 is made of a flexible material, which is connected to the natural bending the helical tip electrode is L, the bending angle adjustment range> 90 °. 头端电极1螺旋状结构尾端连接一传导导线(图中省略),导线穿设在套管2中,穿过套管2与套管2尾端的操作手柄3电连接,并通过操作手柄3上的接口与一射频消融仪相连。 A tip electrode connected to the trailing end of a helical structure of conducting wire (not shown), through the wires provided in the sleeve 2, 2 through the casing 3 is electrically connected to the rear end of the operating handle sleeve 2, and by operating the handle 3 the interface is connected to a radiofrequency ablation device. [0009] 图2示出了本实用新型优化的头端电极1结构和尺寸,其中每个螺圈直径(与180°弧形结构的弧长直径一致)为0.5-1.0cm,两个螺圈的间距为0.33cm(相当于三段弧线的每段高度),整个螺旋状头端电极1的高度为1. Ocm(相当于头端电极的纵向长度)。 [0009] FIG. 2 shows the optimization of the present invention the tip electrode and the size of the structure 1, wherein the diameter of each threaded ring (consistent with the diameter of an arc length of 180 ° arcuate configuration) is 0.5-1.0cm, two spirals spacing of 0.33 cm (three segments corresponding to each segment of the arc height), the overall height of the helical tip electrode 1 is 1. Ocm (corresponding to the longitudinal length of the tip electrode). [0010] 本实用新型使用时,首先穿剌股动脉,在X光造影机透视下,经特制的肾动脉指引导管行肾动脉造影,然后根据造影结果,选用不同直径(0.5-1.0cm)的本实用新型导管,经肾动脉指引导管,将头端螺旋状电极送入到导管内,在X光造影机透视下,将螺旋状电极完全送入肾动脉。 [0010] When using the present invention, the first puncture the femoral artery, under X-ray fluoroscopy contrast, the renal artery through a special guiding catheter renal arteriography, and angiography in accordance with the choice of different diameters (0.5-1.0cm) of catheter of the present invention, the renal artery guiding catheter, the tip of the spiral electrode is fed into the catheter under X-ray fluoroscopy contrast, the spiral electrode completely into the renal artery. 电极尾端通过传导导线与射频消融仪相连,通过射频消融仪,发放射频电流,消融肾动脉支配神经纤维,达到阻断肾交感神经的目的。 Electrodes connected to the conductive wire and the trailing end by radiofrequency ablation device, by radiofrequency ablation device, issuing RF current, ablation of renal artery innervation fibers, to achieve the purpose of blocking the renal sympathetic nerve.

Claims (10)

  1. 一种螺旋状环肾动脉交感神经射频消融电极导管,包括一套管,一与套管尾端连接的操作手柄,以及位于套管前端的头端电极,头端电极尾端连接一传导导线,穿设在套管中与操作手柄电连接;其特征在于:所述头端电极为由单根电极塑形而成的螺旋状结构。 One kind of sympathetic renal artery helical ring electrode radiofrequency ablation catheter comprising a tube, a sleeve connected to the rear end of the operating handle, the front end of the sleeve and the tip electrode, the tip electrode connected to the trailing end of a conducting wire, bored in the sleeve electrically connected to the operation handle; wherein: a spiral structure formed by a single shaped electrode of said ground electrode tip.
  2. 2. 根据权利要求1所述螺旋状环肾动脉交感神经射频消融电极导管,其特征在于:所述头端电极的螺旋状结构具有两个螺圈。 The helical ring 1 according to claim sympathetic renal artery catheter radiofrequency ablation electrode, wherein: the helical structure of the tip electrode having two convolutions.
  3. 3. 根据权利要求2所述螺旋状环肾动脉交感神经射频消融电极导管,其特征在于:所述头端电极的螺圈由三个180。 The helical loop 2 to the renal arteries claim sympathetic radiofrequency ablation catheter electrode, wherein: the spiro ring by a three electrode tip 180. 的弧形结构串接组成。 Arc structure composed series.
  4. 4. 根据权利要求1或2或3所述螺旋状环肾动脉交感神经射频消融电极导管,其特征在于:所述套管由柔性材料制成,其与螺旋状头端电极自然弯曲连接,弯曲角度> 90° 。 1 or according to the spiral ring 23 or claim sympathetic renal artery radiofrequency catheter ablation electrode, wherein: said sleeve is made of a flexible material, which is connected to the natural bending the helical tip electrode is bent an angle> 90 °.
  5. 5. 根据权利要求4所述螺旋状环肾动脉交感神经射频消融电极导管,其特征在于:所述螺旋状结构的每个螺圈直径为0. 5-1. Ocm。 The helical ring 4 according to claim sympathetic renal artery catheter radiofrequency ablation electrode, wherein: the diameter of each of the turns of the helical structure is 0. 5-1 Ocm..
  6. 6. 根据权利要求4所述螺旋状环肾动脉交感神经射频消融电极导管,其特征在于:所述螺旋状结构的螺圈间距为0. 33cm。 The helical ring 4 according to claim sympathetic renal artery radiofrequency catheter ablation electrode, characterized in that: the helical pitch of the spiral ring structure is 0. 33cm.
  7. 7. 根据权利要求5所述螺旋状环肾动脉交感神经射频消融电极导管,其特征在于:所述螺旋状结构的螺圈间距为0. 33cm。 The ring 5 the helical claim sympathetic renal artery catheter radiofrequency ablation electrode, characterized in that: the helical pitch of the spiral ring structure is 0. 33cm.
  8. 8. 根据权利要求1或2或3所述螺旋状环肾动脉交感神经射频消融电极导管,其特征在于:所述整个螺旋状头端电极的长度为1. Ocm。 1 or according to the spiral ring 23 or claim sympathetic renal artery radiofrequency catheter ablation electrode, wherein: the entire length of the helical tip electrode is 1. Ocm.
  9. 9. 根据权利要求4所述螺旋状环肾动脉交感神经射频消融电极导管,其特征在于:所述整个螺旋状头端电极的长度为1. Ocm。 9. The method of claim 4 sympathetic nerve renal artery helical ring radiofrequency ablation catheter electrode, wherein: the entire length of the helical tip electrode is 1. Ocm.
  10. 10. 根据权利要求5或6或7所述螺旋状环肾动脉交感神经射频消融电极导管,其特征在于:所述整个螺旋状头端电极的长度为1. Ocm。 56 or 10. The helical ring 7 or claim sympathetic renal artery catheter radiofrequency ablation electrode, wherein: the entire length of the helical tip electrode is 1. Ocm.
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CN102715949A (en) * 2010-10-26 2012-10-10 美敦力阿迪安卢森堡有限责任公司 Neuromodulation cryotherapeutic devices and associated systems and methods
CN102940525A (en) * 2012-10-17 2013-02-27 上海安通医疗科技有限公司 Multi-pole helicoidal radiofrequency ablation conduit
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WO2013030743A1 (en) * 2011-08-26 2013-03-07 Symap Medical Limited System and method for locating and identifying functional nerves innervating wall of arteries and catheters for same
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US8774913B2 (en) 2002-04-08 2014-07-08 Medtronic Ardian Luxembourg S.A.R.L. Methods and apparatus for intravasculary-induced neuromodulation
US8834464B2 (en) 1999-04-05 2014-09-16 Mark T. Stewart Ablation catheters and associated systems and methods
US8888773B2 (en) 2012-05-11 2014-11-18 Medtronic Ardian Luxembourg S.A.R.L. Multi-electrode catheter assemblies for renal neuromodulation and associated systems and methods
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US9554848B2 (en) 1999-04-05 2017-01-31 Medtronic, Inc. Ablation catheters and associated systems and methods
US9707035B2 (en) 2002-04-08 2017-07-18 Medtronic Ardian Luxembourg S.A.R.L. Methods for catheter-based renal neuromodulation
US9675413B2 (en) 2002-04-08 2017-06-13 Medtronic Ardian Luxembourg S.A.R.L. Methods and apparatus for renal neuromodulation
US9289255B2 (en) 2002-04-08 2016-03-22 Medtronic Ardian Luxembourg S.A.R.L. Methods and apparatus for renal neuromodulation
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US8774913B2 (en) 2002-04-08 2014-07-08 Medtronic Ardian Luxembourg S.A.R.L. Methods and apparatus for intravasculary-induced neuromodulation
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US8956352B2 (en) 2010-10-25 2015-02-17 Medtronic Ardian Luxembourg S.A.R.L. Catheter apparatuses having multi-electrode arrays for renal neuromodulation and associated systems and methods
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