CN202982206U - Multi-electrode radio frequency ablation catheter - Google Patents

Multi-electrode radio frequency ablation catheter Download PDF

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CN202982206U
CN202982206U CN 201220525742 CN201220525742U CN202982206U CN 202982206 U CN202982206 U CN 202982206U CN 201220525742 CN201220525742 CN 201220525742 CN 201220525742 U CN201220525742 U CN 201220525742U CN 202982206 U CN202982206 U CN 202982206U
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ablation
electrode
catheter
connected
control handle
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CN 201220525742
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Chinese (zh)
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陈平根
邹旭华
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陈平根
邹旭华
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Abstract

The utility model discloses a multi-electrode radio frequency ablation catheter. The multi-electrode radio frequency ablation catheter comprises a catheter ablation working end (1), a main body section (2) and a control handle (3). The catheter ablation working end (1) is a kinematic pair mechanism (31) with a multi-electrode electrode tube. The main body section (2) is formed by an outer cannula (4) and an inner core (5), and the outer cannula (4) and the inner core (5) are respectively connected with two ends of the kinematic pair mechanism (31). An externally-arranged radio frequency ablation generator (26) is communicated with the multi-electrode electrode tube (7) through copper wires which is arranged in the control handle (3) and the main body section (2). The control handle (3) is internally provided with a twitch control device which is connected with the inner core (5). The multi-electrode radio frequency ablation catheter is simple in operation, convenient to operate, flexible in adjustment, and accurate in ablation location. In addition, ablation temperature can be monitored in real time, mapping ablation can be operated repeatedly until an effect is exact, a curative effect is improved, complications of treatment are reduced, and risks of operations are reduced.

Description

一种多极射频消融导管 A multi-polar radiofrequency ablation catheter

技术领域 FIELD

[0001] 本实用新型属于医疗器械技术领域,包括肾动脉血管在内的多极射频消融导管,更具体涉及一种操作简单,快速和安全的治疗顽固性高血压的多极射频消融导管及设计方法。 [0001] The present invention belongs to the technical field of medical devices, including renal artery including multiple radiofrequency catheter ablation, and more particularly relates to RF multipole a simple, fast and safe treatment of refractory hypertension and ablation catheter design method.

背景技术 Background technique

[0002] 全球约10亿成年人罹患高血压,其中1/3获得有效控制。 [0002] about one billion adults worldwide suffer from high blood pressure, one-third get effective control. 诊断不足和治疗依从性差是疗效欠佳的原因之一,但大量患者即使接受最佳药物治疗仍不能得到有效控制。 Inadequate and poor treatment compliance is one of the reasons for the poor efficacy of diagnosis, but even if a large number of patients receiving optimal medical therapy can not be effectively controlled. 美国心脏学会(American Heart Association, AHA) American Heart Association (American Heart Association, AHA)

[0003] 2008年发表科学声明,顽固性高血压定义为;经过生活方式改善,同时服用3种不同作用机制的降压药物(其中一种为利尿剂),或至少需要4种药物才能将收缩压和舒张压控制在目标水平(〈140/90 mmHg)。 [0003] published in 2008 scientific statement, resistant hypertension is defined as; through lifestyle changes, while taking three antihypertensive drugs with different mechanisms of action (one of which is a diuretic), or at least four drugs needed to shrink and diastolic blood pressure control at a target level (<140/90 mmHg). 目前关于顽固性高血压的发病率尚未精确统计,但多项临床研究提示该类患者占高血压患者的20°/Γ30%。 Currently on the incidence of resistant hypertension has not been precise statistics, but the number of clinical studies have suggested that patients with hypertension in these patients accounted for 20 ° / Γ30%. 2007年中国心血管病报告指出,我国目前高血压患者至少有2亿人,其中有近5000万顽固性高血压患者。 2007 China cardiovascular disease report pointed out that China currently has at least 200 million people with hypertension, of which nearly 50 million patients with resistant hypertension. 经过对180例人体解剖,统计得出:肾动脉长度大约为30 mm左右;男性肾动脉的平均管径为:左侧Φ6±2.4mm,右侧Φ6.7±2.6 mm ;女性的平均管径为:左侧Φ4.2±2.4 mm,右侧Φ4.6±2.2 mm η After 180 cases of human anatomy, statistics obtained: Renal artery length is about 30 mm; average diameter of male renal artery: left Φ6 ± 2.4mm, right Φ6.7 ± 2.6 mm; average diameter of the female is: left Φ4.2 ± 2.4 mm, right Φ4.6 ± 2.2 mm η

[0004] 2009年世界著名的医学杂志《柳叶刀》发表了以澳大利亚医生Krum为首的研究论文,证实了肾动脉内介入射频方法对治疗高血压是有效的。 [0004] In 2009 the world-renowned medical journal "The Lancet" published a research paper to Australian doctors, led by Krum, confirmed the renal artery interventional radiofrequency method is effective for the treatment of hypertension. 该项技术的始作俑者MarkGelfand和Howard R.Levin因此荣获2011年度美国爱迪生实用新型银奖。 The initiator of the technology MarkGelfand and Howard R.Levin therefore won the 2011 American Silver Edison utility model.

[0005] 射频消融治疗仪主要包括射频消融发生器、治疗电极和中性电极板,射频消融发生器可产生持续或脉冲形式的高频率电磁波,由交变电场和磁场组成。 [0005] Radiofrequency Ablation apparatus includes radiofrequency ablation generator, the treatment electrode and the neutral electrode plate, radiofrequency ablation generator can be in the form of continuous or pulsed high frequency electromagnetic waves, electric and magnetic fields of alternating composition. 射频消融治疗的基本原理是对靶组织施以频率500KHZ左右的射频电流,使组织内的极性分子处于一种激励状态,发生高速震荡摩擦,而产生生物热,当局部温度超过45-50°C时,即可引起细胞内的蛋白质变性,脂质层溶解,细胞膜崩裂,细胞水分丧失,导致靶组织凝固性坏死, The basic principle of radiofrequency ablation of target tissue is subjected to the frequency of the RF current of about 500KHZ, the polarity of the molecules in the tissue in a state of energized state, high-speed vibration friction, bio-generated heat when the local temperature exceeds 45-50 ° C, the denaturation of proteins can cause intracellular lipid layer is dissolved, membrane cracking, loss of cellular water, resulting in the target tissue coagulation necrosis,

[0006] 现有技术W002010078175公开了进入肾动脉并对肾动脉交感神经进行热诱导处理的器械和方法。 [0006] The prior art discloses a device and method W002010078175 into the renal artery and the renal arteries induced sympathetic heat treatment. 该器械采用多段式导管结构,通过回拉各控制线,向各弯曲区施加压缩和弯曲力,由此使加热元件朝向肾动脉的内壁移动。 The instrument uses a multi-stage conduit structure, by retracting control lines, compressive and bending forces applied to the respective curved area, whereby the heating element is moved toward the inner wall of the renal artery. 但是,该导管操作和结构都比较复杂。 However, the conduit structure and operation are relatively complex. 而且,该导管不能很好地适应不同内径的肾动脉,从而电极无法在不同内径的肾动脉中实现贴壁。 Further, the conduit is not well adapted to the renal artery different inner diameters, so that the electrode can not be achieved adherent renal artery of different internal diameters.

[0007]经导管去肾神经术(Transcatheter Renal Denervation, TRenD)或肾脏去交感神经术(Renal Sympathetic Denervation, RSD)是世界上最新的一种非药物介入治疗高血压的方法。 [0007] Transcatheter renal nerve to surgery (Transcatheter Renal Denervation, TRenD) or renal sympathetic denervation surgery (Renal Sympathetic Denervation, RSD) is the world's newest method of a non-pharmacological intervention to treat hypertension. 2011年9月24日在香港万豪酒店召开了亚太TRenD会议,Medtronics公司在会议上通过视频传输直播了世界上唯一的商用Symplicity消融导管并现场演示了3例手术。 September 24, 2011 held a meeting at the Asia-Pacific TRenD Marriott Hotel Hong Kong, Medtronics company at the meeting live in the world's only commercial Symplicity ablation catheter and a live demonstration of three cases of surgical video transmission. 但Symplicity消融导管及治疗方法存在以下不足;I)无法标测肾动脉交感神经支配点,需要随机消融6〜8个点才能达到要求;2)无法标测消融状态,判断消融效果;3)治疗时,消融点不均匀,可能对同一点重复消融,有血管穿孔的危险;4)过多消融点导致血管壁疤痕过多,有可能造成肾动脉狭窄。 However Symplicity ablation catheter and treatment of the following disadvantages; the I) the mapping of the renal artery can not sympathetic innervation point, requires random points of ablation to achieve claim 6 ~ 8; 2) mapping and ablating not state determines the ablation effect; 3) Treatment , the ablation points evenly, this may be repeated on the same point ablation, there is the risk of vessel perforation; 4) excessive blood vessel wall ablation point lead to excessive scarring, may cause renal artery stenosis. [0008] 当前实用新型一种疗效更好的射频消融导管,打破美国去肾神经射频消融的技术垄断和产品市场垄断局面,发展民族产业,就是TRenD治疗方法的当务之急。 [0008] The current invention is an effective and better radiofrequency catheter ablation, breaking the United States to radiofrequency ablation of renal nerves of technology monopoly and market monopoly, development of national industry, is the urgent TRenD treatments. 发明内容[0009] 针对现有技术存在的缺点,本实用新型提供了一种操作简单,快速和安全的适合于不同内径的肾动脉血管的多极射频消融导管及设计方法。 SUMMARY OF THE INVENTION [0009] for the disadvantages of the prior art, the present invention provides a simple, fast and secure different inner diameters adapted to the renal artery of the multi-polar radiofrequency catheter ablation and design method. [0010] 本实用新型技术方案:[0011] 一种多极射频消融导管,它分为三部分:导管消融工作端、主体段和控制手柄•'①导管消融工作端为带有多极电极管的运动副机构;②主体段由外套管和内芯构成,外套管和内芯分别与运动副机构的两端连接;③外置的射频消融发生器通过在控制手柄和主体段内置的铜导线与多极电极管连通,控制手柄内置设有抽动控制装置与内芯连接。 [0010] The technical solution of the present invention: [0011] A multi-pole radiofrequency ablation catheter, it is divided into three parts: the working end of the ablation catheter, the body section and a control handle • '① ablation catheter having a working end of a multi-electrode tube the sub-motion mechanism; ② composed of a main body section of the outer sleeve and the inner core, the outer sleeve and the inner core are respectively connected to both ends of the sub-motion mechanism; ③ external radiofrequency ablation generator through the control handle and the main body section built-in copper wires communicates with multiple electrode tube, provided with a control handle built tic control means connected to the inner core. [0012]优选:[0013] 如上所述的运动副机构由多套单组运动副组成,呈伞状结构,从动杆和主动杆形成单组运动副,主动杆与从动杆杆身形成摆动连接,摆动连接的连接处采用定位摆动或滑动摆动的连接方式,主动杆的一端与前定位环摆动连接,从动杆的一端与后定位环摆动连接;从动杆另一端向内有一弯曲角度;从动杆为电极管的内部支架,弯曲一端的电极管装配有头电极。 [0012] Preferably: [0013] As described above movement of the sub-mechanism includes multiple sub-set of motion consisting of a single, umbrella-shaped structure, the active lever and the driven lever form a single sub-set of motion, the active lever is formed club shaft and the driven swing link, connected at pivot connections using connection positioning pivoting or sliding swing, the front end of the active lever swinging retaining ring is connected with the rear end of the positioning ring driven lever pivot connection; the other end of a driven rod bent inwardly angle; electrode follower lever for the inner support tube, curved tube fitted with an end of the electrode head electrode. [0014] 如上所述的从动杆和主动杆上设有三个活动连接点(A、B、C),从动杆的近端连接点A与后定位环的装配槽摆动连接,主动杆的远端连接点C与前定位环的装配槽摆动连接,中间连接点B为从动杆和主动杆的摆动连接点,连接方式包括铆钉或销钉连接,或两球头关节连接或万向节连接,从动杆的远端为弯曲端。 [0014] As described above the active lever and the driven lever is provided with three movable connection points (A, B, C), the proximal end of the driven lever connected to the pivot connection point A rear positioning ring fitting groove, the active lever the distal end of the connection point C and before swinging retaining ring fitting groove is connected, the intermediate connection point B is connected to the swing point of the driven lever and the active lever, the attachment means comprises a pin or rivet connection, or the two ball head articulating or universal joints , a curved distal end of the driven shaft. [0015] 如上所述的内芯的末端与前定位环连接,前定位环与内芯轴向定位连接且相互不产生轴向窜动,圆周方向滑动连接,外套管的末端与后定位环固定连接,前定位环和后定位环上分别设有X光显影环。 [0015] the end of the core positioning ring as described above is connected to the front, the front positioning ring and the inner mandrel is connected to the positioning and mutual axial movement is not generated, the circumferential direction of the sliding connection, the rear end of the positioning ring fixed to the outer sleeve connection, each ring is provided with X-ray image on the front and rear positioning ring positioning ring. [0016] 如上所述的从动杆与后定位环摆动连接处设有限度环与后定位环连接,限度环与各从动杆在限位处接触形成限位连接。 [0016] As described above the driven shaft and the rear swinging connection with the positioning ring and the positioning ring connection limit ring, limit each of the driven ring and the stopper rod is formed at the contact connection limit. [0017] 如上所述的控制手柄前端与外套管固定连接,控制手柄前半部分设有抽动控制装置,后部装有直径数显表;控制手柄中的内芯由手柄尾部设有的标准的内芯导管接头连出,控制手柄内置设有与多极电极管连通的线路从控制手柄尾部连出形成电极接头,电极接头通过中间连接线与射频消融发生器连接,中间连接线分出多根单电极接头与多极电极管对应连接。 [0017] As described above the front end of the control handle fixedly connected with the outer sleeve, the first half of the control handle is provided with a control means twitch, with the number of rear DRO diameter; the inner core is provided with a control handle by a handle standard tail even the core pipe connector, the control handle has a built-in circuit communication with the plurality of electrode tubes from the tail of the control handle attached form an electrode tab, the electrode tab through the intermediate cable is connected to the RF ablation generator, a plurality of intermediate connection lines separated single multipole electrode tab and the electrode connected to the corresponding tubes. [0018] 如上所述的控制手柄内部设有中空腔,内芯和铜导线穿过中空腔;控制手柄内置的抽动控制装置包括内芯旋钮和圆柱蜗杆,内芯旋钮和圆柱蜗杆螺纹啮合连接,圆柱蜗杆的中心孔与内芯的外壁固定连接或内芯的一段设置为圆柱蜗杆;圆柱蜗杆的另一侧与同轴齿轮啮合连接,同轴齿轮与直径数显表或刻度百分表的计数轴连接。 [0018] The control described above is provided inside the handle cavity, the inner core and the copper wire passing through the cavity; tic control means comprises a control handle built knob and cylindrical worm inner core, the inner core and the cylindrical knob worm thread mating connector, an outer wall section arranged fixedly connected to the inner core or central cylindrical bore of the worm and the inner core is cylindrical worm; the other side of the cylindrical worm gear coaxially connected with the coaxial gear number display meter diameter dial indicator or scale count shaft. [0019] 如上所述的头电极内置有温度传感器,温度传感器采用热电隅或热敏电阻,头电极与铜导线相连,铜导线在电极管的内部并经由外套管的空腔中穿过后从控制手柄尾部连出到电极接头。 [0019] As described above the electrodes are built into the head temperature sensor, a temperature sensor using a thermistor or thermoelectric corner, the first electrode is connected to the copper wire, copper wire and through the outer sleeve via the cavity in the interior of the tube from the control electrodes a handle connected to the tail electrode tab. [0020] 如上所述运动副机构为3— 6组单组运动副组成,根据导管扩张后伞状的伞形尺寸大小分为两系列,第I系列的尺寸为;扩张后伞状的伞形的直径范围为< Φ6_,伞形轴向长度彡16 mm , I系列适用于内径Φ4 mm〜Φ6mm的肾动脉;第II系列的尺寸为;扩张后伞状的伞形的直径范围为彡Φ9πιπι,伞形轴向长度彡18 mm, II系列适用于内径Φ6 mm〜Φ9_的肾动脉。 [0020] The motion mechanism as described above for the sub-sub-group consisting of 3-6 single set of motion, according to the dilatation of the umbrella is divided into two series mushroom size, a size of the first I-series; mushroom umbrella after expansion diameter in the range of <Φ6_, San mushroom axial length 16 mm, I Φ4 series for the inner diameter of the renal artery mm~Φ6mm; series II of dimensions; the expanded umbrella umbrella diameter in the range of San Φ9πιπι, San mushroom axial length 18 mm, II series for Φ6 mm~Φ9_ of renal artery diameter. [0021] 本实用新型的有益效果是;[0022] (I)本实用新型的多极射频消融导管通过运动副机构的作用和数显表的直径读数精确地控制导管开合的直径大小,以适应不同内径的肾动脉,电极能均匀分布在血管四周并紧密贴附于肾动脉内壁以便标测消融,使操作简便,调节灵活。 [0021] The present invention has the advantages that; [0022] (I) of the present invention multi-polar radiofrequency catheter ablation catheter to accurately control the size of the diameter of the opening and closing action of the sub-bodies by the diameter and number of readouts for moving the table to adapt to different inner diameters of the renal artery, the electrode can be evenly distributed in perivascular and closely adhered to the inner wall of the renal artery for mapping and ablating the simple and flexible adjustment. [0023] (2)多极射频消融导管有多个电极分布在四周,一次放置导管后,多个电极依次顺序地对靶组织的交感神经支配点进行标测消融,减少操作次数,不要反复调整电极的位置,使整个手术操作时间短。 [0023] (2) a plurality of radiofrequency catheter ablation electrodes distributed around, after a placement of the catheter, the plurality of electrode are sequentially sympathetic innervation of the target tissue site mapping and ablating performed, reduce the number of operations, do not repeatedly adjust the position of the electrode, the entire surgical operation time is short. [0024] (3)精确标测靶组织的交感神经支配点,消融定位准确,减少盲目消融的弊端。 [0024] The sympathetic innervation point (3) accurately mapping the target tissue ablation accurate positioning and reduce the defects of blind ablation. [0025] (4)内置温度传感器,实时监测消融温度,实时调整射频功率和消融时间,减少血管损伤,操作可控性较强。 [0025] (4) built-in temperature sensors, real-time monitoring of the ablation temperature, and RF power adjusted in real time ablation time, reduced vascular injury, operation strong controllability. [0026] (5)消融后再标测观察消融效果,标测消融可重复操作至效果确切,提高疗效。 [0026] (5) observed after ablation of the ablation mapping effect, mapping and ablating operable repeatedly to effect precise and improve efficacy. [0027] (6)由于精确标测与消融,操作时间短,因此能够最大限度地减少治疗的并发症,降低手术的风险性。 [0027] (6) Since the precise mapping and ablation, the operation time is short, it is possible to minimize the complications of treatment, reducing the risk of surgery. [0028] 本实用新型的多极射频消融导管结构简单,操作方便,便于产业化制造。 [0028] The present invention multipolar radiofrequency ablation catheter simple structure, easy to operate, easy to manufacture industry. 附图说明[0029] 图1是本实用新型实施例1的整体结构示意图。 BRIEF DESCRIPTION [0029] FIG. 1 is an overall schematic view of Example 1 of the present embodiment of the invention. [0030] 图2是本实用新型实施例1撑开后导管的尖端的结构示意图。 [0030] FIG. 2 is a schematic view of the catheter tip after distraction Example 1 of the present invention. [0031] 图3是本实用新型实施例1的运动副机构的结构示意图。 [0031] FIG. 3 is a schematic diagram of the sub-movement mechanism of the present invention of Example 1. [0032] 图4是本实用新型实施例1的运动副机构的局部结构示意图。 [0032] FIG. 4 is a partial schematic view of the sub-movement mechanism of the present invention of Example 1. [0033] 图5是本实用新型实施例1的单组运动副的工作原理示意图。 [0033] FIG. 5 is a schematic view of an embodiment of the present invention, the principle of a single set of motion of a pair. [0034] 图6是本实用新型实施例1的前定位环的局部剖视结构示意图。 [0034] FIG. 6 is a partially sectional structural diagram of the embodiment of the present invention prior to positioning a ring. [0035] 图7是本实用新型实施例1的后定位环的结构示意图。 [0035] FIG. 7 is a structural diagram of the embodiment of the present invention positioned in a ring. [0036] 图8是本实用新型实施例1的限度环的结构示意图。 [0036] FIG. 8 is a structural diagram of the embodiment of the present invention limits a ring. [0037] 图9是本实用新型实施例1的控制手柄的主视结构示意图。 [0037] FIG. 9 is a schematic front view of the structure of the control handle of the present invention of Example 1. [0038] 图10是本实用新型实施例1的控制手柄的俯视结构示意图。 [0038] FIG. 10 is a schematic top view of the structure of the control handle of the present invention of Example 1. [0039] 图11是本实用新型实施例1的控制手柄内部传动机构的局部示意图。 [0039] FIG. 11 is a partial schematic view of the transmission mechanism inside the control handle of the present invention of Example 1. [0040] 图12是本实用新型实施例1的未撑开的原始状态示意图。 [0040] FIG. 12 is a schematic diagram of the non-stretched original condition of the present invention in Example 1. [0041] 图13是本实用新型实施例1的扩张后电极与肾动脉贴壁状态的示意图。 [0041] FIG. 13 is a schematic diagram of the present invention after expansion of the electrode of Example 1 and the renal artery adherent state. [0042] 图14是本实用新型实施例1的在RSD手术中的使用状态示意图。 [0042] FIG. 14 is a schematic view of the present invention using a state of the embodiment in Example 1 RSD surgery. [0043] 图中:导管的尖端1,主体段2,控制手柄3,外套管4,内芯5,后定位环6,电极管7,主动杆8,前定位环9,头电极10,限度环11,X光显影环12、13,从动杆14,铜导线15,电极管7的末直段16,内芯旋钮17,直径数显表18,电极接头19,圆柱蜗杆20,同轴齿轮21,内芯导管接头22,收缩的导管23,导引导管及管座24,肾动脉25,射频消融发生器26,中间连接线27,限位凹槽28,装配槽29,伞状30,运动副机构31,单组运动副32。 [0043] FIG: tip of the catheter 1, the main body section 2, the control lever 3, the outer sleeve 4, inner core 5, the retaining ring 6, electrode tube 7, the active lever 8, the front positioning ring 9, the first electrode 10, limit ring 11, X-ray image rings 12 and 13, the driven shaft 14, a copper wire 15, the end of the straight section 16 of the electrode tube 7, a knob core 17, the number of DRO diameter 18, the electrode tab 19, cylindrical worm 20, coaxially gear 21, core catheter fitting 22, catheter 23 contraction, the stem 24 and the guiding catheter, the renal arteries 25, radiofrequency ablation generator 26, an intermediate connecting line 27, the stopper groove 28, fitting groove 29, the umbrella 30 Its movement mechanism 31, a single sub-set of motion 32.

具体实施方式 Detailed ways

[0044] 下面结合附图对本实用新型的具体实施方式进行详细说明。 [0044] DRAWINGS The present invention is described in detail specific embodiments. 本实用新型的多极射频消融导管,以下简称为导管。 The present invention multipolar radiofrequency ablation catheter, hereinafter referred to as a catheter.

[0045] 在经导管去肾交感神经消融手术(RSD或TRenD)时,通过股动脉穿刺和血管造影后就可以知道肾动脉长度和内径,本实用新型的导管经由导引导管输送到肾动脉开口处,固定导引导管的位置后,将本实用新型的导管从导引导管送出到肾动脉内,导管自身的柔顺性会使其顺应导引导管的变形;然后操纵导管后部的手柄3使内芯5向后滑动,在运动副机构的作用下导管展开到合适的直径大小(可通过直径数显18读数),来匹配不同内径的肾动脉血管,通过X光显影观察多个电极均匀分布在血管四周并且紧密贴附于肾动脉血管内壁,并可观察到导管在肾动脉内的具体位置;打开射频消融发生器(Ablation andsensing unit, ASU)激发射频电流,标测祀组织相应的交感神经兴奋支配点,然后通过多个电极依次顺序地对各靶点进行消融,每个电极做一次能量释放,每次持续时间不 [0045] In the catheter to the renal sympathetic ablation procedures (RSD or TREND), it can be known length and inner diameter of the renal artery through the femoral artery and angiographic puncture after, the present invention into the renal artery via a catheter delivery guide catheter opening at the position of the fixed guide catheter, the catheter of the present invention is transmitted from the guiding catheter into the renal artery, the catheter itself so that it will conform to the compliance of the deformation of the guide catheter; then manipulating the handle 3 so that the rear portion of the catheter core 5 slid rearwardly under the action of the movement of the catheter to expand the sub-mechanism to a suitable diameter (the number of readings can be significantly diameter 18), to match the different internal diameters of the renal artery, uniformly distributed through the plurality of electrodes to observe X-ray image in perivascular and closely adhered to the vessel wall of the renal artery, and the catheter was observed specific location within the renal artery; open radiofrequency ablation generator (ablation andsensing unit, ASU) RF excitation current corresponding mapping tissue sympathetic worship excited dominant points, followed sequentially for each target ablation through multiple electrodes, each electrode do a release of energy every time it does not last 超过2Min,释放能量大约8W左右,消融过程中电极温度控制在4(T75°C ;由于电极温度受动脉血流带走部分热量等因素的影响,通过内置的温度传感器(热电隅或热敏电阻)实时监测靶组织的消融温度,从而实时调节射频功率,控制消融温度和消融时间;消融后再标测并观察消融效果,如果消融不完全,可重复操作直到效果确切。然后,将导管先缩小后推进5 mm左右,并导管整体旋转45°,然后按以上所述的步骤实施第二组目标交感神经支配点的标测消融;对多个电极依次顺序地标测消融,直到消融完目标神经支配点(大约6 — 8个),消融完毕后收缩并闭合导管,然后经由导引导管回收并撤出到体外。因此经导管去肾交感神经消融手术,从而调节了肾交感神经活动来达到治疗顽固性高血压的目的, Over 2min, the release energy of about about 8W, during the ablation electrode temperature is controlled at 4 (T75 ° C; temperature of the electrodes due to the affected part of the heat away arterial blood flow and other factors, by the built-in temperature sensor (thermistor or thermoelectric corner ) ablation of target tissue temperature monitoring in real time, thereby adjusting the RF power in real time, controlling ablation temperature, and ablation time; after ablation mapping and ablation observed effect, if not fully ablated, the operation may be repeated until the exact effect then, the first narrow conduit. after advancing about 5 mm, and integrally rotating the catheter 45 °, and then follow the steps above embodiment mapping and ablating a second set of target sympathetic innervation point; a plurality of electrodes for mapping and ablating the sequential order, until the complete ablation of target innervation point (approximately 6 - eight), completed and after shrinkage ablation catheter is closed, and then recovered and withdrawn through the guide catheter to the catheter to extracorporeal renal sympathetic nerve Thus the ablation procedure, thereby adjusting the renal sympathetic nerve activity to achieve the treatment of intractable hypertension purpose,

[0046] 图1所示导管分为三部分;(I)导管尖端为导管消融工作端I ; (2)主体段2由外套管4和内芯5构成;(3)后部为控制手柄3。 [0046] Figure 1 shows the three parts of the catheter; (the I) catheter ablation catheter tip to the working end of the I; (2) the body section 2 is constituted by the outer sleeve 4 and the inner core 5; (3) to control the rear handle 3 . 导管通过导引导管输送到肾动脉内。 Catheter delivery into the guide catheter through the renal artery.

[0047] 图2— 5所示:导管撑开后呈伞状30,内芯5与外套管4之间的相对运动使运动副机构31动作并通过数显表读数来精密地控制导管的开合直径大小。 [0047] As shown in FIG. 2-5: After umbrella shaped conduit opening 30, relative movement between the inner core and the outer sleeve 45 so that movement of the sub-mechanism 31 is operated to open and to precisely control the catheter by reading DRO co-diameter size. 头电极10和运动副机构31两端的X光显影环(12,13)材料为钼铱合金或钼钨合金,可通过X光显影观察导管在肾动脉血管内的位置。 Head electrode 10 and the X-ray image of the ring 31 at both ends of the sub-motion mechanism (12, 13) iridium alloy material is molybdenum or molybdenum-tungsten alloy, can be observed the developing position of the catheter within the renal artery by X-ray. 所述电极管7采用的材料为热塑性弹性体材料,热塑性弹性体材料包括Pebax、PA和聚亚氨酯中的一种或多种混合体。 7 the electrode material used is a thermoplastic elastomeric material tube, as Pebax material comprises a thermoplastic elastomer, polyurethane, and one kind of PA or more kinds thereof. 其内部有铜导线和金属支架,此金属支架是运动副的从动杆部分14 ;头电极10固定于电极管7的末直段16尾部,头电极10内置温度传感器,头电极10与铜导线15相连,铜导线15在电极管的内部并经由外套管4穿出后,从控制手柄尾部连出,通过电极接头19连接到射频消融发生器26。 Copper wire and has inside thereof a metal stent, the stent is a metal rod driven movement of the sub-part 14; 10 fixed to the head electrode 16 trailing end of the straight pipe section of the electrode 7, the electrode head 10 built-in temperature sensor, the first electrode 10 and the copper wire 15 is connected to the internal electrodes 15 copper wire and the tube after piercing through the overtube 4, even the tail from the control handle, connected to the generator 26 by the radiofrequency ablation electrode tab 19.

[0048] 内芯5为中空的导管,在外套管4内,与外套管4滑动连接,外套管4和内芯5的结构由外壁、中间层和内层组成,外壁由PA或Pebax或其混合体组成,外壁有亲水涂层;中间层为金属编织网;内层为PTFE。 [0048] The core 5 is hollow conduit, the outer sleeve 4, the slide 4 is connected to the outer tube, the outer sleeve 4 and the inner structural core 5 by an outer wall, an intermediate layer and an inner layer, an outer wall or by a PA or Pebax mixture having a composition, a hydrophilic coating of the outer wall; the intermediate layer is a metal braid; inner layer is PTFE. 运动副的材料为镍钛合金或不锈钢等,在轴向上具有足够的强度作为运动副的结构件,在横向上又具有一定的柔顺性,便于在血管内输送。 Motion of the material for the sub-like nitinol or stainless steel, having sufficient strength as a structural sub-element movement in the axial direction, in the transverse direction and has a certain flexibility to facilitate delivery within a vessel.

[0049] 其它实施例中:内芯5为实芯体或带封口端的导管,控制手柄3尾部不与内芯导管接头22。 [0049] Other embodiments: the inner core is a solid core or 5 with the closed end of the catheter, the control handle 3 is not the tail of the inner core catheter adapter 22. [0050] 运动副机构31为4组单组运动副32组成,根据导管扩张后伞状30的伞形尺寸大小分为两系列,第I系列的尺寸为;扩张后伞状的伞形的直径范围为< Φ6_,伞形轴向长度彡16 mm , I系列适用于内径Φ4 mm〜Φ6πιπι的肾动脉;第II系列的尺寸为;扩张后伞状30的伞形的直径范围为彡Φ9πιπι,伞形轴向长度彡18 mm, II系列适用于内径Φ6mm〜Φ9ιήπι的肾动脉。 [0050] The motion mechanism 31 to the sub-group 4 consisting of 32 single sub-set of motion, according to the size of the umbrella umbrella dilatation catheter 30 is divided into two series, the first I-series sizes; umbrella after the expansion the diameter of the mushroom range <Φ6_, San mushroom axial length 16 mm, I series for the inner diameter of the renal artery Φ4 mm~Φ6πιπι; series II of dimensions; mushroom umbrella diameter range of 30 after expansion is San Φ9πιπι, umbrellas Pie shaped axial length of 18 mm, II series for Φ6mm~Φ9ιήπι the renal artery diameter. [0051] 第I系列导管或第II系列导管在展开过程中,例如:1系列的导管当扩张后的伞形直径为Φ4 mm时,电极管7的末直段16上头电极10保持水平并贴附于Φ4 mm动脉血管内壁;当伞形进一步扩张到直径为Φ6πιπι时,电极管7的末直段16的头电极10在角度上有轻微的上翘,头电极10能紧密贴附于Φ6πιπι肾动脉血管内壁,因此本实用新型的I系列导管适用于内径Φ4 mm〜Φ6πιπι的肾动脉。 [0051] Series I, Series II, a catheter or catheter during deployment, for example: when an umbrella diameter after a series expansion of the conduit when Φ4 mm, the end of the straight section 16 of the top electrode tube 7 held horizontally and the electrode paste 10 Φ4 mm attached to the arterial vascular wall; when the umbrella is further expanded to a diameter Φ6πιπι, the end of the straight pipe section 7 of the electrode head 16 of the electrode 10 has a slight bend in the angle head electrode 10 can be closely attached to the kidney Φ6πιπι arterial wall, therefore the present invention is applicable to I-series pipe inner diameter of the renal artery Φ4 mm~Φ6πιπι. [0052] 运动副由从动杆14、主动杆8、活动连接点(Α,B, C)和限度环11等构成。 [0052] driven by the movement of the sub-lever 14, the active lever 8, the movable connection point (Α, B, C), and ring 11 limits the like. 后定位环6装配于外套管4的前端,多组从动杆14的近端连接点A与后定位环6的装配槽29通过金属丝或卡簧等方式分别集结在后定位环上,装配后可绕A点灵活转动;从动杆14又与主动杆8装配在中间连接点B处,装配后可绕中间连接点B灵活转动,外套管4前端与后定位环6固定连接,内芯5的外壁设有凸位与带有限位凹槽28的前定位环9间隙配合连接,使得前定位环9不随内芯旋转,只随内芯5向前或向后移动,并且前定位环在内芯上不发生轴向窜动。 After the positioning ring 6 is attached to the distal end of the overtube 4, the proximal plurality of sets of follower rod 14 is connected to point A and the ring fitting groove 29 are positioned on the positioning ring assembly 6 by way of a metal wire or clip spring assembly after flexibly rotate about the point A can be; driven lever 14 in turn connected to the intermediate point B at the active lever assembly 8, the assembly may be flexible about an intermediate connection point B is rotated, the outer tube 4 is positioned with the rear distal ring 6 is fixedly connected to the inner core a convex outer wall 5 of the 9 bits of the gap with the ring retaining groove 28 is positioned before the mating connector, so that the front retaining ring 9 does not rotate with the core, only forward or backward with the core 5 and the front positioning ring It does not occur on the inner core axial movement. 多组主动杆8的远端连接点C与前定位环9的装配槽通过金属丝或卡簧等方式分别集结在前定位环上,装配后可绕C点灵活转动;在连接点(A、B、C)处的活动连接包括金属丝穿过连接孔的连接,轴与孔间隙配合连接,铆钉或销钉连接,或两球头关节连接等活动连接方式; [0053] 当在导管扩张到最大直径时,后定位环上的限度环11限制运动副不能继续绕连接A向后转动,具有限位保护功能。 Plural sets of the distal end of the active lever 8 is connected to the point C and before the retaining ring fitting groove 9 by a metal wire or clip spring, etc. assembled respectively on the front positioning ring, the assembly can flexibly rotate about the point C; connection points (A, B, active C) at the connection comprises a wire connection through the connecting hole, a clearance fit with the bore axis, rivet or pin connection, or the first two goals articulated connections and other activities; [0053] when the maximum dilatation diameter, limits on the positioning ring 11 limits the movement of the sub-connector a can not continue the backward rotation, having about limit protection. [0054] 单组运动副32的工作原理;当外套管4的相对位置固定不动时,通过手柄回抽内芯5,内芯5向后滑动,在前定位环9上的活动点C后退,同时主动杆8绕C点顺时针旋转;主动杆8与从动杆14绕活动点B也顺时针旋转同时向上运动;从动杆14绕活动点A逆时针旋转;因此,回抽内芯时,运动副动作使得从动杆上的末直段16向上运动,达到直径扩张的目的。 Working Principle [0054] 32 of the sub single set of motion; and when the relative position of the outer sleeve 4 is fixed, the inner core Withdrawing the handle 5, the inner core 5 slid rearwardly, active front positioning ring 9 backward point C , while the active lever 8 rotates clockwise about the point C; 8 active lever and the driven lever 14 about point B activity is also moved upward while clockwise rotation; rotation of the driven lever 14 counterclockwise around the point A activity; Thus, the inner core Withdrawing , the motion sub operation section such that the straight end of the driven rod 16 moves upward, the purpose of the diameter expansion. [0055] 当外套管4的相对位置固定不动,内芯5向外伸出时,从动杆14和主动杆8的相对运动与上述的动作正好相反,使得直径缩小,因此内芯与外套管之间的相对运动及其运动副的作用能控制导管的开合直径大小。 [0055] When the relative position of the outer sleeve 4 is fixed, the inner core 5 outwardly, the relative movement of the driven shaft 14 and the active lever 8 opposite the action described above, so that the reduced diameter, so the inner core and the outer sleeve its effect relative movement between the movement of the sub-tube diameter can be controlled to open and close the conduit. [0056] 中空的后定位环6装配并固定于外套管4的前端,多组从动杆14的近端连接点A与后定位环6的装配槽29 (如图7所示)通过金属丝或卡簧等方式分别集结在后定位环6上,装配后可绕A点灵活转动;从动杆14又与主动杆8装配在活动连接点B处,装配后可绕B点灵活转动;内芯5的外壁设有凸位与带有限位凹槽28的前定位环9间隙配合连接,使得前定位环9不随内芯旋转,只随内芯向前或向后移动,并且前定位环在内芯上不发生轴向窜动,多组主动杆8的远端连接点C与前定位环9的装配槽29 (如图6所示)通过金属丝或卡簧等方式分别集结在前定位环上,装配后可绕C点灵活转动;在连接点(A、B、C)处的活动连接包括金属丝穿过连接孔的连接,轴与孔间隙配合连接,铆钉或销钉连接,或两球头关节连接等活动连接方式;当运动副扩张到最大直径时,后定位环上的限度环11 ( [0056] After positioning the hollow ring 6 fitted and fixed to the tip of the overtube 4, the proximal plurality of sets of follower rod 14 is connected to the point A and the rear positioning ring is fitted in the groove 296 (FIG. 7) by a wire or the like are assembled in the manner circlip after positioning ring 6, the flexible mounting rotatable about the point A; driven lever 14 in turn fitted at the active lever 8 active connection at point B, the flexible assembly to rotate about the point B; the a convex outer wall of the core 5 and 9 bits with a clearance ring retaining groove 28 is positioned before the mating connector, so that the front retaining ring 9 does not rotate with the core, only forward or backward over the inner core, and the front positioning ring does not occur on the axial movement of the core, the distal end of the plurality of sets of the active lever 8 is positioned before the connection point C of the ring 9 fitting groove 29 (FIG. 6) by way of a metal wire or clip spring positioned respectively front assembly ring, the assembly may be rotatably flexible about a point C; at the connection point (a, B, C) at the active connection comprises a wire through the connecting hole, a clearance fit with the bore axis, rivet or pin connection, or two ball joint connections active connections; when moved to the maximum expanded diameter of the sub, the limit on the rear positioning ring 11 ( 图8所示)限制从动杆14不能继续绕连接A向后转动,具有限位保护功能。 As shown in FIG.) Restriction 8 driven lever 14 can not continue the connection A backward rotation, having about limit protection.

[0057] 图9一11所示:操纵导管后部的控制手柄3回抽内芯5时,通过运动副机构31的作用和控制手柄3中设有的数显表直径读数18,从而精密地控制运动副机构31的开合直径大小以适应不同内径的肾动脉,运动副机构31扩张后呈伞状30,多个头电极10均匀分布在血管四周并紧密贴附于肾动脉内壁以便标测消融。 [0057] 11 shown in FIG. 9 a: the catheter control handle to manipulate the rear portion 3 Withdrawing core 5 by the movement of the sub-action mechanism 3 and a control handle 31 is provided with a reading diameter DRO 18, thereby minutely controlling opening and closing movement of the sub-mechanism to accommodate the diameter of different inner diameters of the renal artery, sub-motion mechanism 3031 after the umbrella-shaped expansion 31, a plurality of first electrodes 10 and uniformly distributed in perivascular closely adhered to the inner wall of the renal artery for mapping and ablating .

[0058] 内芯导管接头22在手术时可与Y型止血阀连接,便于通过导丝或造影剂等;中间连接线27分出多根带不同颜色和编号的单电极接头,便于手术时对各电极依次顺序地消融;手柄的材料为聚碳酸酯或聚甲醛等热塑性工程材料。 [0058] The inner core 22 at the time of surgery conduit connector with hemostasis valve connected to Y, or to facilitate guidewire contrast agent; an intermediate connecting line 27 separated single electrode tab and a plurality of colors with different numbers, to facilitate during surgery each electrode are sequentially ablated; handle material is a polycarbonate or polyoxymethylene thermoplastic engineering materials.

[0059] 内芯5与外套管4之间的相对运动使运动副机构31动作并通过数显表读数从而精密地控制导管的开合直径大小,以适应不同内径的肾动脉并使电极紧密贴附于血管内壁。 [0059] The relative movement between the inner core and the outer sleeve 45 so that movement of the sub-mechanism 31 is operated and thereby precisely control the opening and closing of the diameter of the catheter through the digital meter reading, in order to accommodate different inner diameters of the renal artery and the electrode in close contact attached to the vessel wall.

[0060] 控制手柄3包括(I)把手部分,(2)内芯旋钮部分17,(3)直径数显表18或刻度百分表。 [0060] The control handle 3 comprises (I) a handle portion (2) of the core knob portion 17, (3) the number or diameter of the DRO 18 scale dial. 手柄有符合人体工程学设计的曲面外形结构,操纵手柄上的内芯旋钮17可调节导管的开合直径大小,通过数显表18读出相应的直径数据。 Handle structure with a curved shape to meet the ergonomic design, the knob on the inner core handle 17 may be adjusted to open and close the conduit diameter, the DRO 18 reads out the corresponding diameter data.

[0061] 手柄前端与外套管装配并固定,手柄的前半部分装有内芯旋钮17,后部装有直径数显表18 ;手柄尾部有标准的内芯导管接头22连出,手术时与Y型止血阀相连;手柄内部的中空腔通过内芯5和铜导线10,从手柄尾部连出到电极接头19,之后可连接中间连接线27,中间连接线分出四根带不同颜色和编号的单电极接头,便于对各电极分别消融。 [0061] The distal end of the handle assembly and the outer sleeve is fixed, the front half portion of the handle knob 17 with an inner core, the rear portion 18 with diameter of several digital form; tail handle core catheter has a standard connector 22 even out, surgery and Y hemostasis valve connected; a cavity inside the handle 5 through the inner core 10 and the copper wire, is connected to the electrode tab 19, can then be connected to the intermediate connection line 27 from the handle tail separated four intermediate connecting lines with different colors and numbers single electrode tab, respectively, to each electrode to facilitate ablation.

[0062] 内芯旋钮17外表面有直花纹或滚花,便于手动操作不打滑;内芯旋钮17的中心孔带有内齿轮;圆柱蜗杆20带有中心孔,圆柱蜗杆的中心孔与内芯的外壁装配并固定;内芯旋钮17中心孔的内齿轮与固定在内芯外壁的圆柱蜗杆20啮合装配。 [0062] The outer surface of the inner core 17 has a knob or a straight knurl patterns, facilitate manual operation does not slip; knob core central bore 17 with internal gear; worm 20 with a cylindrical central bore, the central bore of the inner cylindrical worm core outer wall fitted and fixed; cylindrical worm gear 17 within the central bore of the inner core and the fixed knob 20 engages the outer wall of the inner core assembly. 当旋转内芯旋钮17时,内芯旋钮与圆柱蜗杆啮合运动,使内芯通过旋转而向前或向后移动,从而控制运动副机构31的开合直径大小;注意选择合适的蜗杆模数和轴向齿距,和内芯旋钮17的内齿轮的模数相匹配。 When the rotary knob 17 of the core, the core engaging movement of the knob and cylindrical worm, by rotating the inner core move forward or backward, thereby controlling the opening and closing movement of the sub-mechanism 31 in diameter; attention to select the appropriate modulus and worm an axial pitch, and the modulus of the internal gear 17 of the knob core match.

[0063] 直径数显表18或刻度百分表的结构;在手柄后部装有直径数显表。 Dial indicator or scale 18 of the structure [0063] Diameter of DRO; Diameter of the rear handle with DRO. 直径数显表上装配有同轴齿轮21,同轴齿轮与内芯的圆柱蜗杆20啮合连接。 21 fitted with a coaxial gear 20 meshing with the inner cylindrical worm gear coaxially connected to the core diameter of several digital form. 当旋转内芯旋钮17时,内芯的圆柱蜗杆20随之啮合运动,此圆柱蜗杆同步与数显表的计数轴上的齿轮啮合运动,同轴齿轮的精密传动使数显表相应地计数工作,从而读出相应的导管的直径数据。 When the rotary knob core 17, the cylindrical worm 20 along the inner core engaging movement, synchronized with the worm of the cylindrical counter gear shaft DRO engaging movement, causes the precision transmission gear coaxially DRO counting operation accordingly , to read out data corresponding to the diameter of the conduit.

[0064]图 12—14 所不,多极射频消融导管在RSD(Renal Sympathetic Denervation,RSD)手术中的的过程状态示意图。 [0064] Figures 12-14 are not, in the multi-polar radiofrequency catheter RSD (Renal Sympathetic Denervation, RSD) is a schematic view of a state during a surgical ablation. 在RSD手术过程中,通过操纵控制手柄上的内芯旋钮17控制导管展开到合适的直径,多个电极紧密贴附于肾动脉25内壁而进行标测消融的过程状态。 In the RSD procedure, by manipulating the control knobs on the core 17 of the control handle of the catheter to expand to the appropriate diameters, a plurality of electrodes 25 is closely attached to the inner wall of the renal artery and the process of mapping and ablating state. 图导引导管及其管座24用于输送本实用新型的导管到肾动脉内。 FIG header and guide catheter 24 for delivery catheter of the present invention into the renal artery. 本实施例的导管的控制手柄尾部的电极接头19通过中间连接线27的四根单电极分别连接到射频消融发生器(Ablation and Sensing Unit, ASU)上的四个电极接口上,同时使用ASU上的选择旋钮开关调到相应的位置,才可激发射频消融电流。 This end of the control handle embodiment of a catheter electrode tab 19 is connected to line 27 through an intermediate four single electrodes are connected to a radio frequency ablation four electrode interface generator (Ablation and Sensing Unit, ASU), while using the ASU the selection knob switch to the corresponding position, before the excitation current radiofrequency ablation. 这样可以有控制地顺序地选择消融电极操作。 Such control can sequentially select the ablation electrode operation.

[0065] 本实施例通过运动副的作用和数显表的直径读数来精确地控制导管的展开直径,以适应于不同内径的肾动脉,多个电极紧密贴附于血管内壁标测消融,因此操作简便,调节灵活,消融效果确切,减少手术的风险性。 [0065] Example of the present embodiment to precisely control the diameter of the catheter to expand the diameter by reading the sub-action movement of the DRO, to adapt to different inner diameters of the renal artery, close the plurality of electrodes attached to the inner vessel wall ablation mapping, so simple, flexible regulation, the ablation exact effect, reduce the risk of surgery. 本实用新型不局限于上述具体实施方式中所述的内容。 SUMMARY The present invention is not limited to the above-described specific embodiment of the.

Claims (9)

1.一种多极射频消融导管,它分为三部分:导管消融工作端(1)、主体段(2)和控制手柄(3);其特征是:①导管消融工作端(1)为带有多极电极管(7)的运动副机构(31);②主体段(2)由外套管(4)和内芯(5)构成,外套管(4)和内芯(5)分别与运动副机构(31)的两端连接;③外置的射频消融发生器(26)通过在控制手柄(3)和主体段(2)内置的铜导线(15)与多极电极管(7)连通,控制手柄(3)内置设有抽动控制装置与内芯(5)连接。 A multi-polar radiofrequency ablation catheter, it is divided into three parts: the working end of the ablation catheter (1), the body section (2) and the control handle (3); wherein are: ① catheter ablation working end (1) with multiple sub-motion mechanism electrode tube (7) (31); ② body section (2) consists of an outer sleeve (4) and the inner core (5), the outer sleeve (4) and the inner core (5) respectively moving across the secondary means (31) is connected; ③ external radiofrequency ablation generator (26) via the communication control handle (3) and the body section (2) built-in copper conductor (15) and a multi-electrode tube (7) , the control handle (3) is provided with a built-tic control means and the inner core (5) is connected.
2.如权利要求1所述的一种多极射频消融导管,其特征在于,所述的运动副机构(31)由多套单组运动副(32 )组成,呈伞状(30 )结构,从动杆(14)和主动杆(8 )形成单组运动副(32),主动杆(8)与从动杆(14)杆身形成摆动连接,摆动连接的连接处采用定位摆动或滑动摆动的连接方式,主动杆(8)的一端与前定位环(9)摆动连接,从动杆(14)的一端与后定位环(6)摆动连接;从动杆(14)另一端向内有一弯曲角度;从动杆(14)为电极管(7)的内部支架,弯曲一端的电极管装配有头电极(10 )。 2. one of the claim 1, multiple radiofrequency catheter ablation, wherein said sub-motion mechanism (31) by a plurality of sub-sets of a single set of motion (32), with umbrella-shaped (30) configuration, follower lever (14) and the active lever (8) forms a single sub-set of motion (32), the active lever (8) and the driven rod (14) form a pivot shaft, connecting the pivot connection is positioned using swing or sliding swing after positioning ring end of the connection, the active lever (8) and the front end of the retaining ring (9) connected to the swing driven lever (14) (6) connected to the swing; follower lever (14) and the other end has an inwardly bending angle; follower lever (14) for the electrode tube (7) inside the bracket, the curved end of the electrode tube fitted with a head electrode (10).
3.如权利要求2所述的一种多极射频消融导管,其特征在于,所述的从动杆(14)和主动杆(8)上设有三个活动连接点(A、B、C),从动杆(14)的近端连接点A与后定位环(6)的装配槽摆动连接,主动杆(8)的远端连接点C与前定位环(9)的装配槽摆动连接,中间连接点B为从动杆(14)和主动杆(8)的摆动连接点,连接方式包括铆钉或销钉连接,或两球头关节连接或万向节连接,从动杆(14)的远端为弯曲端。 3. A multi claimed in claim 2, said radiofrequency catheter ablation, wherein the follower lever (14) and the active lever is provided with three movable connection points (A, B, C) (8) , the proximal end of the driven rod (14) connected to the retaining ring (6) of the fitting groove and the rear swinging connection point a, the distal end of the active lever (8) is connected to the point C and before the retaining ring (9) swing fitting groove connection, an intermediate connection point B is connected to pivot point follower lever (14) and the active lever (8), the attachment means comprises a pin or rivet connection, or the two ball head articulating or universal joints, far follower lever (14) end of the curved end.
4.如权利要求2或3所述的一种多极射频消融导管,其特征在于,所述的内芯(5)的末端与前定位环(9)连接,前定位环(9)与内芯(5)轴向定位连接且相互不产生轴向窜动,圆周方向滑动连接,夕卜套管(4)的末端与后定位环(6)固定连接,前定位环(9)和后定位环(6)上分别设有X光显影环(12、13)。 4. to claim 2 or 3, (9) and the inner ring front positioning require multiple radiofrequency ablation catheter wherein the distal end of the core (5) and the front retaining ring (9) is connected, a core (5) is positioned axially connected to each other and no axial movement, the circumferential direction of the sliding connection, Xi Bu sleeve (4) and the rear end of the retaining ring (6) is fixedly connected to the front ring (9) and the rear positioning ring (6) are provided X-ray image rings (12, 13).
5.如权利要求2或3所述的一种多极射频消融导管,其特征在于,所述的从动杆(14)与后定位环(6 )摆动连接处设有限度环(11)与后定位环(6 )连接,限度环(11)与各从动杆(14)在限位处接触形成限位连接。 5. An claim 2 or claim 3 multiple radiofrequency catheter ablation, wherein, after positioning of the follower rod (14) connected to the wobble of the ring (6) has a limit ring (11) and after the retaining ring (6), limit ring (11) with the driven lever (14) is formed in contact with the stopper attached to the stopper.
6.如权利要求2或3所述的一种多极射频消融导管,其特征在于,所述的控制手柄(3)前端与外套管(4)固定连接,控制手柄(3)前半部分设有抽动控制装置,后部装有直径数显表(18);控制手柄(3)中的内芯(5)由手柄尾部设有的标准的内芯导管接头(22)连出,控制手柄(3)内置设有与多极电极管(7)连通的线路从控制手柄(3)尾部连出形成电极接头(19),电极接头(19)通过中间连接线(27)与射频消融发生器(26)连接,中间连接线(27)分出多根单电极接头与多极电极管(7)对应连接。 6. An claim 2 or claim 3 multiple radiofrequency catheter ablation, wherein said control handle (3) and the front end of the outer sleeve (4) is fixedly connected to the control handle (3) is provided with first half tic control apparatus, a rear table with the number of significant diameter (18); control handle core (3) in (5) is provided with a handle by a standard tail core catheter connector (22) is connected a control handle (3 ) built-in line is provided with a multi-electrode tube (7) communicating (3) forming an electrode tab attached tail (19) from the control handle, the electrode tab (19) by an intermediate connecting line (27) with radiofrequency ablation generator (26 ) connected to the intermediate connecting line (27) a plurality of individual electrodes separated linker multipole electrode tube (7) correspondingly.
7.如权利要求2或3所述的一种多极射频消融导管,其特征在于,所述的控制手柄(3)内部设有中空腔,内芯(5 )和铜导线(15)穿过中空腔;控制手柄(3)内置的抽动控制装置包括内芯旋钮(17 )和圆柱蜗杆(20 ),内芯旋钮(17 )和圆柱蜗杆(20 )螺纹啮合连接,圆柱蜗杆(20)的中心孔与内芯(5)的外壁固定连接或内芯(5)的一段设置为圆柱蜗杆(20);圆柱蜗杆(20)的另一侧与同轴齿轮(21)啮合连接,同轴齿轮(21)与直径数显表(18)或刻度百分表的计数轴连接。 7. An claim 2 or claim 3 multiple radiofrequency catheter ablation, wherein said control handle (3) is provided with an internal cavity, the inner core (5) and copper conductors (15) passing through the cavity; control handle (3) built tic control apparatus includes an inner core knob (17) and a cylindrical worm (20), the inner core knob (17) and a cylindrical worm (20) in threaded engagement connection, the central cylindrical worm (20) hole core (5) is fixedly connected to the outer wall or the inner core (5) disposed in a cylindrical section of a worm (20); the other side of the worm cylinder (20) coaxial with the gear (21) engages the connection, coaxial gear ( 21) the number of DRO diameter (18) or dial indicator scale count shaft.
8.如权利要求2或3所述的一种多极射频消融导管,其特征在于,所述的头电极(10)内置有温度传感器,温度传感器采用热电隅或热敏电阻,头电极(10)与铜导线(15)相连,铜导线(15)在电极管(7)的内部并经由外套管(4)的空腔中穿过后从控制手柄(3)尾部连出到电极接头(19)。 8. An claim 2 or claim 3 multiple radiofrequency catheter ablation, wherein said first electrode (10) built-in temperature sensor, the temperature sensor using a thermistor or thermoelectric corner, the electrode head (10 ) and copper wire (15) is connected to a copper wire (15) and attached to inner electrode tube (7) via a rear cavity the overtube (4), through the control handle (3) to the tail of an electrode tab (19) .
9.如权利要求1所述的一种多极射频消融导管,其特征在于,所述的运动副机构(31)为3— 6组单组运动副(32)组成,根据导管扩张后伞状(30)的伞形尺寸大小分为两系列,第I系列的尺寸为;扩张后伞状的伞形的直径范围为彡ΦΘμπι,伞形轴向长度> 16 mm ;第II系列的尺寸为;扩张后伞状(30)的伞形的直径范围为彡Φ9πιπι,伞形轴向长度> 18mmD · 9. claim 1 one of the plurality of radiofrequency catheter ablation, wherein said sub-motion mechanism (31) is a single set of motion 3-6 sub-group (32) composed of an umbrella according to the dilatation catheter (30) the size of the umbrella is divided into two series, the first I-series sizes; after expansion umbrella umbrella diameter in the range of San ΦΘμπι, mushroom axial length> 16 mm; II series of dimensions; after umbrella diameter range extension (30) is mushroom San Φ9πιπι, mushroom axial length> 18mmD ·
CN 201220525742 2012-10-15 2012-10-15 Multi-electrode radio frequency ablation catheter CN202982206U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102860867A (en) * 2012-10-15 2013-01-09 陈平根 Multi-electrode radio frequency ablation catheter and design method thereof
CN104799937A (en) * 2014-01-27 2015-07-29 深圳市信立泰生物医疗工程有限公司 Renal nerve ablation catheter and application thereof
CN105852962A (en) * 2016-04-29 2016-08-17 廖申扬 Ablation catheter capable of precisely adjusting tubular tissue
CN106963486A (en) * 2017-05-20 2017-07-21 王新 A kind of esophageal regurgitation radio-frequency ablation electrode
CN107174336A (en) * 2017-05-20 2017-09-19 王新 A kind of esophageal regurgitation radio-frequency ablation electrode

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102860867A (en) * 2012-10-15 2013-01-09 陈平根 Multi-electrode radio frequency ablation catheter and design method thereof
CN102860867B (en) * 2012-10-15 2014-11-05 陈平根 Multi-electrode radio frequency ablation catheter and design method thereof
CN104799937A (en) * 2014-01-27 2015-07-29 深圳市信立泰生物医疗工程有限公司 Renal nerve ablation catheter and application thereof
CN104799937B (en) * 2014-01-27 2019-02-19 深圳市信立泰生物医疗工程有限公司 A kind of renal nerve ablation catheter and its application
CN105852962A (en) * 2016-04-29 2016-08-17 廖申扬 Ablation catheter capable of precisely adjusting tubular tissue
CN106963486A (en) * 2017-05-20 2017-07-21 王新 A kind of esophageal regurgitation radio-frequency ablation electrode
CN107174336A (en) * 2017-05-20 2017-09-19 王新 A kind of esophageal regurgitation radio-frequency ablation electrode

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