CN107440785A - Adsorption-type ablation catheter and ablation device - Google Patents

Adsorption-type ablation catheter and ablation device Download PDF

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Publication number
CN107440785A
CN107440785A CN201610380183.3A CN201610380183A CN107440785A CN 107440785 A CN107440785 A CN 107440785A CN 201610380183 A CN201610380183 A CN 201610380183A CN 107440785 A CN107440785 A CN 107440785A
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electrode
adsorption
ablation
ablation catheter
tissue
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CN201610380183.3A
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Chinese (zh)
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李楚武
邹波
朱晓林
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四川锦江电子科技有限公司
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Priority to CN201610380183.3A priority Critical patent/CN107440785A/en
Publication of CN107440785A publication Critical patent/CN107440785A/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14Probes or electrodes therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00345Vascular system
    • A61B2018/00351Heart
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00482Digestive system
    • A61B2018/00494Stomach, intestines or bowel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636Sensing and controlling the application of energy
    • A61B2018/00773Sensed parameters
    • A61B2018/00791Temperature
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14Probes or electrodes therefor
    • A61B2018/1467Probes or electrodes therefor using more than two electrodes on a single probe
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02Details of sensors specially adapted for in-vivo measurements

Abstract

The invention discloses an adsorption-type ablation catheter and an ablation device, wherein he adsorption-type ablation catheter comprises a catheter body and an electrode part which is connected to the far end of the catheter body; the part, connected to the electrode part, of the catheter body is provided with an adsorption port; and the ablation device comprises a radio-frequency source and the adsorption-type ablation catheter of the structure. According to the adsorption-type ablation catheter and the ablation device provided by the invention, electrode arms can effectively and reliably cling to focus tissues, and clinging force between the electrode part and the focus tissues can be accurately controlled and a clinging degree can be accurately judged; and in addition, superficial ablation can be implemented.

Description

一种吸附式消融导管及消融装置 An adsorption ablation catheter and ablation device

[0001] [0001]

技术领域 FIELD

[0002] 本发明涉及消融领域,特别涉及一种吸附式消融导管及消融装置。 [0002] The present invention relates to ablation, and in particular relates to a suction catheter ablation and the ablation device.

背景技术 Background technique

[0003] 在导管介入治疗中,是将射频消融导管电极贴靠病变组织,电极释放射频能量与背极板形成回路,通过生物组织中离子传导电流所产生的焦耳热和生物组织在高频电磁场中因介电损耗而产生的热使得病变组织的温度升高,因为病变组织的散热性差且对高热敏感,从而达到治疗目的。 [0003] In the treatment catheter intervention, the electrode is a radio frequency ablation catheter against the diseased tissue, and RF energy is released back electrode plate to form a loop Joule heat conducting high frequency electromagnetic fields and biological tissue currents generated by the ions in biological tissue heat due to dielectric loss is generated so that the temperature is raised lesions, because lesions of heat dissipation is poor and susceptible to heat, so as to achieve therapeutic purposes. 在进行消融前需确定电极与病灶组织贴靠的程度,经过临床证实只有在导管远端的电极与病灶组织的接触压力合适的条件下消融才能达到较好的治疗效果。 Before performing ablation to be determined by the extent of the electrode and tissue lesions stickers, clinically proven only contact pressure at the distal end of the catheter ablation electrode and tissue lesions in order to achieve better therapeutic effect under the right conditions. 在利用消融导管进行治疗时,是将导管远端与病灶组织接触,在此过程中最为重要的是使导管远端能够良好地与病灶组织接触,否则,过度的压力可能对组织造成不可取的损伤,而过小的压力则无法达到彻底消融的治疗目的。 When treated using the ablation catheter, the distal end of the catheter is in contact with the tissue lesions, the most important in this process is to make the distal end of the catheter can be good contact with the tissue lesions, otherwise, may result in undesirable excessive pressure on the organization damage, while too little pressure can not be complete ablation therapeutic purposes.

[0004] 目前已有人利用新的消融导管(专利申请公开号:CN103908337A)直接检测贴靠的压力大小,但该消融导管的电极在某些病灶组织中,比如在心脏、胃或肠道中,易受血液、组织液或胃液等的影响,难以保证比较好的贴靠效果;除此之外,该项技术中检测压力的装置易受检测控制系统精度的影响,无法判定电极与病灶组织的贴靠程度。 [0004] It has been currently take advantage of new ablation catheter (Patent Application Publication No.: CN103908337A) electrode directly detect the amount of pressure against, but the catheter ablation of lesions in certain tissues, such as the heart, stomach or intestinal tract, easy affected blood, tissue fluid or the like gastric fluid, is difficult to ensure good effect against; in addition, the pressure detecting means of this technology is susceptible to the detection accuracy of the control system, it can not be determined with the electrode against tissue lesions degree.

发明内容 SUMMARY

[0005] 本发明的目的在于克服现有技术中消融导管所存在的电极无法有效贴靠病灶组织且无法判断贴靠程度等上述不足,提供一种电极臂能够有效可靠地贴靠病灶组织、能准确控制电极部分与病灶组织之间的贴靠力且能够准确判断贴靠程度的吸附式消融导管,另夕卜,本发明还提供了一种包括该吸附式消融导管的消融装置。 [0005] The object of the present invention is to overcome the lead present in the prior art can not effectively against the ablation lesion tissue and can not determine the degree against these shortcomings, there is provided an electrode arm can be effectively and reliably against pathological tissues, can accurate control of the force against the abutment and can accurately determine the degree of adsorption of the ablation catheter, other Bu Xi, the present invention also provides an ablation device comprising ablation catheter of the adsorption between the electrode portion and pathological tissues.

[0006] 为了实现上述发明目的,本发明提供了以下技术方案: 一种吸附式消融导管,包括管体及与管体远端相连的电极部分,管体上与电极部分的连接处设有吸附口。 [0006] In order to achieve the above object, the present invention provides the following technical solution: A suction catheter ablation, includes a tubular body portion of the tubular body and an electrode attached to the distal end, the connecting tube and the electrode portion is provided with adsorption mouth.

[0007] 在本发明所述吸附式消融导管中,管体上与电极部分的连接处设有吸附口,当电极部分靠近组织附近时,该吸附口对准病灶组织的中心,缓慢移动电极部分至与病灶组织贴靠,开启外部的负压源,此时吸附口与病灶组织之间将会形成负压,负压会使得整个电极部分有效可靠地包覆在病灶组织上,开启射频能量就可进行消融治疗;除此之外,本发明可以通过控制负压源的功率大小来调整电极部分与病灶组织之间的贴靠力,以适应不同病灶组织(如心脏组织、胃组织)和不同的消融深度,负压源的功率越大,贴靠力越大,贴靠程度也就越好。 [0007] In the present invention, an ablation catheter absorption, the tubular body and the connection electrode portion is provided with suction port when the tissue near the electrode portion, the suction opening of the centering tissue lesions, slow moving electrode portion to the lesion against the tissue, turning on the external negative pressure source, a negative pressure will be at this time between the suction port and pathological tissues, such that the entire negative electrode portions may be effectively and reliably coated on the pathological tissues, the RF energy is turned ablation may be performed; in addition, the present invention can be adjusted against the force between the electrode portion and the size of the lesion tissue by controlling the power source of negative pressure, in order to accommodate different pathological tissues (such as heart tissue, stomach tissue) and various ablation depth, the greater the power source of negative pressure, the greater the abutment force against the better degree. 由此可知,本发明所述吸附式消融导管中的电极部分能够有效可靠地贴靠在病灶组织上,且能准确控制电极部分与病灶组织之间的贴靠力,g卩,使得电极部分与病灶组织之间的贴靠程度变得可控,也能准确判断电极部分与病灶组织之间的贴靠程度。 It can be seen, the present invention adsorbs ablation catheter electrode portion can be effectively and reliably abuts the tissue lesions, and can accurately control the abutment force between the electrode portion and tissue lesions, g Jie, such that the electrode portion and abutment between the degree of lesion tissue becomes controllable, can be accurately determined by the degree of fit between the electrode portion and pathological tissues.

[0008] 作为本发明的优选方案,电极部分包括多个电极臂,且电极臂的近端均与管体的远端相连,而电极臂的远端均为自由端。 [0008] As a preferred embodiment of the present invention, the electrode portion comprises a plurality of electrode arms, the arms and the proximal electrode are connected to the distal end of the tubular body, and the distal end of the horn are free.

[0009] 在本发明所述吸附式消融导管中,电极部分包括多个电极臂,该多个电极臂沿管体的径向分布,且电极臂的近端均与管体的远端相连,电极臂的远端均为自由端,当将吸附口对准病灶组织的中心且将电极部分缓慢移动至与病灶组织贴靠时,开启外部的负压源, 此时吸附口会与病灶组织之间形成负压,在负压的作用下所有的电极臂均会有效可靠地包覆在病灶组织上,操作简单,使用方便,而且采用多个电极臂与病灶组织贴靠,进一步保证了电极部分与病灶组织之间良好的贴靠程度。 [0009] In the present invention, the suction catheter ablation, the electrode portion comprises a plurality of electrode arms, the plurality of electrodes radially distributed arms along the tubular body, and the proximal end of the electrode arms are connected to the distal end of the tubular body, the distal end of the electrode arms are free ends, centering adsorption port when the tissue lesion and the electrode portions to move slowly against the lesion tissue, the external negative pressure source is turned on, and this time will focus adsorption port organization formed between the negative pressure in the negative pressure of the horn will all be effectively and reliably coated on the pathological tissues, the operation is simple, easy to use, and the use of multiple electrodes against the tissue lesion arms further ensures that the electrode portions good abutment between the extent of the lesion tissue.

[0010] 另外,为了进一步保证电极部分与病灶组织之间良好的贴靠程度,本发明将多个电极臂沿管体的径向均匀分布。 [0010] Further, in order to further ensure a good fit against the electrode portion between the degree of the lesion tissue, the plurality of electrodes of the present invention, the radial arms evenly distributed along the tubular body.

[0011] 进一步优选地,上述电极臂呈弯曲状。 [0011] Further preferably, the electrode is curved arm.

[0012] 在本发明所述吸附式消融导管中,电极臂呈弯曲状,能使得电极臂与病灶组织之间的包覆面积更大,从而使得电极臂与病灶组织之间的贴靠程度更高,即能够进一步保证整个电极部分有效地包覆在病灶组织上;如若将电极臂设计为直线状,则只能有极少一部分与病灶组织贴靠,大部分结构不能与病灶组织贴靠在一起,这样会严重影响电极部分与病灶组织之间的贴靠程度,不利于消融效率的提高。 [0012] In the present invention, the suction catheter ablation, the electrode arms are curved, so that can cover a larger area between the electrode arm and pathological tissues, such that the arm attached between the electrode and the degree of tissue lesions by more high, i.e., it can be further effectively ensure that the entire electrode portion coated on the pathological tissues; Should the horn as a line shape, only a very small portion of the tissue against the lesion, most of the structure can bear against tissue lesion together, this will seriously affect on the degree of fit between the electrode portion of the lesion tissue, not conducive to improving the efficiency of the ablation.

[0013] 进一步优选地,电极臂上设有组织贴靠面,且组织贴靠面的背面设有温度传感器。 [0013] Further preferably, the arm is provided with an electrode contact surface tissue, and the tissue against the back surface is provided with a temperature sensor.

[0014] 在本发明所述吸附式消融导管中,该温度传感器主要用于实时检测电极部分周围病灶组织的温度,为医生在进行消融治疗时提供安全性保障,避免因温度过高而损伤病人的健康组织。 [0014] In the present invention, the absorption ablation catheter, the temperature sensor is mainly used for real-time temperature of the surrounding tissue lesion detection electrode portion, to provide security protection for the physician during the ablation, due to high temperature to avoid injury patients healthy tissue.

[0015] 进一步优选地,电极臂包括射频发射电极臂和射频接收电极臂。 [0015] Further preferably, the electrode arm comprising a radio frequency transmitter and radio frequency receiver horn horn.

[0016]工作时,医务人员可通过消融装置上的接口选择具体哪几个电极臂分别作为射频发射电极臂和射频接收电极臂,在选择的几个电极臂中,可以有一个射频发射电极臂和至少一个射频接收电极臂,也可以有至少一个射频发射电极臂和一个射频接收电极臂。 [0016] In operation, the medical staff can be selected by the interface means on which several ablation electrodes particular arms were used as a radio frequency transmitter and radio frequency receiver horn arm electrode, the electrode arm in several selected, there may be a radio frequency transmission horn RF electrodes and at least one receiving arm may have at least one radio frequency transmitter and a radio frequency receiver horn horn. 当加载高频电压时,射频发射电极臂与射频接收电极臂之间相互放电进行刺激,此时,射频发射电极带和射频接收电极带包覆的病灶组织会发热并升温,因为病灶组织的散热性差且对高热敏感,这样会使得病灶组织在高温条件下变性去除;与现有技术中电极对背极板放电进行的深度消融相比,这种消融方式为有针对性的浅表消融,避免了现有技术中采用深度消融方式对浅表组织进行消融治疗所带来的损伤健康组织的风险。 When loading a high frequency voltage, radio frequency transmission between each discharge electrode stimulation electrode arm and a radio frequency receiver arm, this time, the electrode with a radio frequency transmitter and radio frequency receiver electrode with tissue lesions will heat the coated and heated, because heat tissue lesions and poor sensitivity to heat, this will make the removal of the lesion tissue degeneration under high temperature conditions; compared with the prior art, the ablation depth on the back plate discharging electrode, which is the way the ablation of the targeted superficial ablation, to avoid superficial tissue ablation risks arising from damage to healthy tissue in the prior art depth-ablation method. 由此可知,本发明所述吸附式消融导管能够进行有针对性的浅表消融,且能保证比较好的消融效果。 It can be seen, the present invention is capable of adsorbing ablation catheter ablation targeted shallow, ablation can ensure better results.

[0017]作为本发明的优选方案,电极部分在管体轴线上的投影超出管体远端。 [0017] As a preferred embodiment of the present invention, the electrode portion projected on the axis of the body beyond the distal end of the tubular body.

[0018]在本发明所述吸附式消融导管中,电极部分在管体轴线上的投影超出管体远端, 这样的设计能够保证至少有部分电极臂能超出管体远端,即保证至少有部分电极臂能包覆在病灶组织表面,从而使得电极臂能有效可靠地贴靠在病灶组织表面。 [0018] adsorption in the ablation catheter of the present invention, the electrode portion projected on the axis of the body beyond the distal end of the tubular body, this is designed to ensure that at least part of the electrode arm is beyond the distal end of the tubular body, i.e., to ensure that at least the arm portion of the electrode can be coated on the surface of the lesion tissue, so that the horn can be efficiently and reliably abuts the surface of tissue lesions.

[0019]作为本发明的优选方案,管体内部设有相互独立的导线腔和气道,且气道与吸附口连通。 [0019] As a preferred embodiment of the present invention, the inner tube body is provided with mutually independent guide wire lumen airway, and adsorption port in communication with the airway.

[0020]在本发明所述吸附式消融导管中,导线腔用于设置导线,气道与吸附口连通,主要起到连通吸附口与负压源的作用;而将导线腔和气道相互独立设置,能够避免气流对导线产生影响,从而有助于提高电极部分与病灶组织之间贴靠程度的判断精确度,也有助于提高所述吸附式消融导管的消融效率。 [0020] In the present invention, the suction catheter ablation, the lead wire is provided for the chamber, and the suction port communicate with the airway, the main function as the communication port and the negative pressure suction source; and the guide wire lumen is provided independent airway possible to avoid impact on the air flow conductor, thereby contributing to improve the abutment between the electrode portion and the degree of tissue lesions judgment accuracy, also help to improve the adsorption efficiency of the ablation of the ablation catheter.

[0021] 进一步优选地,吸附口通过气道与另设的负压源连通。 [0021] Further preferably, the suction port communicates with a source of negative pressure through a separate airway.

[0022] 在本发明所述吸附式消融导管中,吸附口通过气道与负压源连通,负压源通过气道在吸附口与病灶组织之间形成负压,可通过控制该负压源功率的大小来达到调整电极部分与病灶组织之间贴靠力大小的目的,使用方便,不仅能保证电极部分有效可靠地贴靠在病灶组织上,而且还能避免因电极部分与病灶组织之间的贴靠力过大而损伤组织。 [0022] In the present invention, an ablation catheter absorption, adsorption ports through the air passage communicates with the negative pressure source, a negative pressure between the vacuum source and the suction port through the airway tissue lesions, by controlling the negative pressure source the size of the power to achieve the adjustment between the electrode paste portions of the lesion tissue on the purpose of the force size, easy to use, not only to ensure efficient and reliable electrode partially abuts the tissue lesions, but also to avoid the section between the electrode and tissue lesions due the excessive force against tissue damage.

[0023]因此,本发明所述吸附式消融导管的电极臂能够有效可靠地贴靠病灶组织,能准确控制电极部分与病灶组织之间的贴靠力且能准确判断贴靠程度,还能进行浅表消融。 [0023] Thus, the horn absorption ablation catheter of the present invention can be effectively and reliably against the tissue lesions, can accurately control the abutment force between the electrode portion and the tissue lesions and can accurately determine the degree of abutment, can be superficial ablation. [0024]本发明还提供了一种消融装置,该消融装置包括射频源及与该射频源连接的吸附式消融导管。 [0024] The present invention also provides an ablation device, the ablation device comprises an ablation catheter adsorption RF source and connected to the RF source.

[0025]因为包括如上所述的吸附式消融导管,故本发明所述消融装置的电极能够有效可靠地贴靠在病灶组织上,能准确控制电极部分与病灶组织之间的贴靠力且能准确判断贴靠程度的好坏,使用方便,还能进行浅表消融。 [0025] as described above include adsorption ablation catheter, so the present invention, the electrode device can be effectively and reliably ablation rest against the tissue lesions, can accurately control the fit between the electrode portion and the biasing force capable of tissue lesions accurate judgment against the degree of good or bad, easy to use, but also for superficial ablation.

[0026]另外,在本发明所述技术方案中,凡未作特别说明的,均可通过采用本领域中的常规技术手段来实现本技术方案。 [0026] Further, in the aspect of the present invention and which do not particularly described, the present technology may be realized by employing conventional techniques in the art.

[0027]综上所述,与现有技术相比,本发明具有如下有益效果: 1、 在本发明所述技术方案中,管体上与电极部分的连接处设有吸附口,这样使得所述吸附式消融导管的电极部分能够有效可靠地贴靠在病灶组织上,且能准确控制电极部分与病灶组织之间的贴靠力,也能准确判断电极部分与病灶组织之间的贴靠程度; 2、 在本发明所述技术方案中,电极臂呈弯曲状,能使得电极臂与病灶组织之间的包覆面积更大,从而使得电极臂能更好地贴靠病灶组织,即能够进一步保证整个电极部分完全有效地包覆在病灶组织上; 3、 在本发明所述技术方案中,电极臂包括射频发射电极臂和射频接收电极臂,使得本发明所述吸附式消融导管能够进行有针对性的浅表消融,且能保证比较好的消融效果; 4、 在本发明所述技术方案中,电极部分在管体轴线上的投影超出管 [0027] In summary, compared with the prior art, the present invention has the following advantages: 1, in the aspect of the present invention, the connecting electrode portion is provided on the suction inlet tube, such that the electrode portion of said suction catheter ablation can be effectively and reliably abuts the tissue lesions, and can accurately control the abutment force between the electrode portion and the lesion tissue can be accurately determined by the degree of fit between the electrode portion and the tissue lesion ; 2, in the aspect of the present invention, the electrode arms are curved, so that the coated area can be between the electrode arm and tissue lesions greater, so that the horn can better against tissue lesions, i.e., can be further ensure that the entire electrode portion completely effectively coated on the pathological tissues; 3, in the aspect of the present invention, the electrode arm comprising a radio frequency transmitter and radio frequency receiver horn horn, such that the ablation catheter of the present invention, the adsorption can be performed with a targeted ablation of superficial, can ensure good ablation effect; 4, in the aspect of the present invention, the electrode portion projected on the axis of the body beyond the tube 远端,这样的设计能够保证至少有部分电极臂能超出管体远端,即保证至少有部分电极臂能包覆在病灶组织表面,从而进一步保证电极臂能有效可靠地贴靠在病灶组织表面; 5、 在本发明所述技术方案中,将导线腔和气道相互独立设置,能够避免气流对导线产生影响,从而有助于提高电极部分与病灶组织之间贴靠程度的判断精确度,也有助于提高所述吸附式消融导管的消融效率; 6、 本发明所述消融装置的电极臂能够有效可靠地贴靠病灶组织,能准确控制电极部分与病灶组织之间的贴靠力,且能准确判断贴靠程度的好坏,使用方便,还能进行浅表消融。 The distal end, this is designed to ensure that at least part of the electrode arm is beyond the distal end of the tubular body, i.e., to ensure that at least part of the horn can be coated on the surface tissue lesions, thus further ensuring the effective electrode arm rests securely tissue surface lesions ; 5, in the aspect of the present invention, the guide wire lumen airway provided independently of each other, it is possible to avoid the impact on the air flow conductor, thereby contributing to improve the abutment between the electrode portion and the degree of tissue lesions judgment accuracy, there help improve the adsorption efficiency of the ablation catheter ablation; 6, the horn of the ablation device of the present invention can be effectively and reliably against the tissue lesions, can accurately control the abutment force between the electrode portion and tissue lesions, and can accurate judgment against the degree of good or bad, easy to use, but also for superficial ablation.

附图说明 BRIEF DESCRIPTION

[0028]图1是实施例1中吸附式消融导管的结构示意图; 图2是实施例1中管体的剖面图; 图中标记:卜管体,1.卜导线腔,1.2-气道,2-吸附口,3-电极臂。 [0028] FIG. 1 is a block diagram representation of an adsorption ablation catheter embodiment; FIG. 2 is a cross-sectional view of the body of the embodiment; FIG labeled: Bu tubular body, a guide wire lumen Bu, 1.2 airways. 2- suction port, three-electrode arm.

具体实施方式 Detailed ways

[0029] 下面结合附图及具体实施方式对本发明作进一步的详细描述。 [0029] The present invention will be described in further detail in conjunction with accompanying drawings and specific embodiments. 但不应将此理解为本发明上述主题的范围仅限于以下的实施例,凡基于本发明内容所实现的技术均属于本发明的范围。 However, this should not be understood that the present invention relating to the above-described range limited to the following examples, all based on the teachings of the present invention are achieved within the scope of the present invention.

[0030] 实施例1 一种吸附式消融导管,如图1所示,包括管体1及与该管体1远端相连的电极部分,该管体1上与电极部分的连接处设有吸附口2,该吸附口2通过气道1.2与外部的负压源连通,该负压源可以为抽气设备;该电极部分包括多个沿管体1的径向均匀分布的电极臂3,该电极臂3呈弯曲状,具体可为S型或螺旋状,这样有助于增大电极部分与病灶组织之间的包覆面积,从而使得电极部分与病灶组织之间的贴靠程度更高;另外,多个电极臂3的近端均与管体1的远端相连,而多个电极臂3的远端均为自由端。 [0030] Example 1 An adsorption ablation catheter, as shown in FIG. 1 and comprising an electrode portion connected to a distal end of the tube body, the tube body 1 and connected to the electrode portion provided with a suction mouth 2, through the suction port 2 communicates with an external airway 1.2 negative pressure source, a negative pressure source may be a suction device; the electrode portion comprises a plurality of radial arms electrode 1 along the tubular body 3 is uniformly distributed, the horn 3 is curved, particularly S-shaped or spiral may be, which helps increase the covered area between the electrode portion and tissue lesions, such that between the paste and the electrode portion by a higher degree of tissue lesions; Further, the proximal end of the plurality of electrodes and the arms 3 are connected to the distal end of the tubular body 1, the plurality of electrodes and the distal free end of the arm 3 are.

[0031]在本实施例中,上述电极部分在管体1轴线上的投影超出管体1远端,这样能够保证至少有部分电极臂能超出管体1远端,即保证至少有部分电极臂3能包覆在病灶组织表面,从而使得电极臂3能有效可靠地贴靠在病灶组织表面。 [0031] In the present embodiment, the electrode portion projected on the axis of the tubular body 1 beyond the distal end of the tubular body 1, this can ensure that at least a portion of the electrode arm is beyond the distal end of the tubular body, i.e., ensure that at least part of the electrode arm 3 can be coated on the surface of the tissue lesion, the arm 3 so that the electrode can be effectively and securely rests against the tissue surface lesions.

[0032] 上述电极臂3上设有组织贴靠面,该组织贴靠面的背面设有温度传感器,且电极臂3包括射频发射电极臂和射频接收电极臂。 [0032] the electrode arms 3 is provided with abutment surface tissue, the tissue against the back surface of a temperature sensor, and the electrode arm 3 comprises a radio frequency transmitter and radio frequency receiver horn horn.

[0033] 工作时,医务人员可通过消融装置上的接口选择具体哪几个电极臂3分别作为射频发射电极臂和射频接收电极臂,在选择的几个电极臂3中,可以有一个射频发射电极臂和至少一个射频接收电极臂,也可以有至少一个射频发射电极臂和一个射频接收电极臂,可以为相邻的电极臂3,也可以为不相邻的电极臂3;然后加载高频电压,射频发射电极臂与射频接收电极臂之间相互放电进行刺激,此时,射频发射电极带和射频接收电极带包覆的病灶组织会发热并升温,从而使得病灶组织在高温条件下变性去除;与现有技术中电极对背极板放电进行的深度消融相比,这种消融方式为有针对性的浅表消融。 [0033] In operation, the medical staff via an interface selection ablation device which several specific electrode arms 3 were used as a radio frequency transmitter and radio frequency receiver horn horn, the horn in a few selected 3, there may be a radio frequency transmission RF electrodes and at least one arm arm receiving electrode may have at least one radio frequency transmitter and a radio frequency receiver horn arm electrode can 3, or may be non-adjacent electrodes adjacent to the horn arm 3; then loading frequency voltage, radio frequency transmission between each discharge electrode stimulation electrode arm and a radio frequency receiver arm, this time, with the RF transmitter and the RF receiver electrodes coated with electrode heating and tissue lesions will be raised, so that the removal of the lesion tissue at a high temperature denaturation ; compared with the prior art, the ablation depth on the back plate discharging electrode, which is the way the ablation of superficial ablation targeted.

[0034] 如图2所示,上述管体1内部设有相互独立的导线腔1.1和上述气道1.2,其中,气道1.2与吸附口2连通,即上述吸附口2通过气道1 • 2与负压源连通。 [0034] 2, the interior of the tubular body 1 is provided with mutually independent guide wire lumen and said airway 1.1 1.2, wherein the airway communicating with the suction port 2 1.2, i.e., the suction port through the air passage 2 1 • 2 It communicates with the negative pressure source.

[0035] 上述吸附口2平整光滑,能够避免刺伤组织。 [0035] The suction opening 2 is smooth, it is possible to avoid puncture tissue.

[0036] 当将吸附口2对准病灶组织的中心并缓慢移动电极部分至与病灶组织贴靠时,开启负压源,此时吸附口2与病灶组织之间将会形成负压,该负压使得整个电极部分能够有效可靠地包覆在病灶组织上,开启射频能量就可进行消融治疗;另外,还可以通过控制该负压源功率的大小来调整电极部分与病灶组织之间的贴靠力,以适应不同病灶组织(如心脏组织、胃组织)和不同的消融深度,抽气设备的功率越大,贴靠力越大,贴靠程度也就越好。 [0036] When the alignment of the center suction opening 2 and tissue lesions electrode portion to move slowly against the tissue and the lesion, opening the negative pressure source, a negative pressure will be between the case 2 and the suction port tissue lesions, the negative pressing the electrode so that the entire portion can be effectively and reliably coated on the tissue lesions, radiofrequency energy can be opened ablation therapy; in addition, can be adjusted between the stick electrode portion against the tissue lesion by controlling the magnitude of the negative power source force to accommodate the greater the depth of power, pumping equipment of different pathological tissues (such as heart tissue, stomach tissue) and different ablation, against the greater force against the better degree.

[0037] 在本实施例中,上述管体1是采用塑胶材料、PEBAX、聚氨酯或TRJ材料制成的,以保证管体1具有良好的回弹和弹性恢复能力,在一定程度上方便了该吸附式消融导管的使用。 [0037] In the present embodiment, the tube body 1 is formed with plastic material, PEBAX, manufactured, or TRJ polyurethane material, to ensure that the tube 1 has good resilience and elastic recovery, which facilitates a certain degree adsorption ablation using a catheter.

[0038] 实施例2 本实施例提供了一种消融装置,该消融装置包括射频源及与该射频源连接的吸附式消融导管,该吸附式消融导管的结构与实施例1提供的消融导管的结构相同。 [0038] Example 2 This example provides a structure ablation device, the ablation device comprises an ablation catheter adsorption RF source and the RF source is connected, the adsorption ablation catheter with an ablation catheter embodiment of Example 1 provided the same structure.

[0039] 本实施例提供的消融装置的电极能够有效可靠地贴靠病灶组织,且能准确判断贴靠程度的好坏,使用方便,另外,该消融装置也能进行浅表消融。 [0039] The present embodiment provides an electrode ablation device embodiment can be effectively and reliably against the tissue lesions, and can accurately determine the degree of abutment quality, easy to use, additionally, the ablation device superficial ablation can be performed.

[0040] 以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。 [0040] The foregoing is only preferred embodiments of the present invention but are not intended to limit the present invention, any modifications within the spirit and principle of the present invention, equivalent substitutions and improvements should be included in the present within the scope of the invention.

Claims (8)

1. 一种吸附式消融导管,包括管体及与所述管体远端相连的电极部分,其特征在于,所述管体上与电极部分的连接处设有吸附口。 An adsorption ablation catheter, comprising a tubular body and an electrode portion connected to the distal end of the tubular body, characterized in that the tube body and the electrode portion connected to the adsorption ports are provided.
2. 根据权利要求1所述的吸附式消融导管,其特征在于,所述电极部分包括多个电极臂,且所述电极臂的近端均与管体的远端相连,而所述电极臂的远端均为自由端。 Adsorption according to claim 1, said ablation catheter, wherein said electrode comprises a plurality of electrodes arm portion, and the proximal end of the electrode arms are connected to the distal end of the tubular body, and the electrode arm the distal end are free.
3. 根据权利要求2所述的吸附式消融导管,其特征在于,所述电极臂呈弯曲状。 3. The adsorption of the ablation catheter of claim 2, characterized in that the electrode arms are curved.
4. 根据权利要求2所述的吸附式消融导管,其特征在于,所述电极臂上设有组织贴靠面,且所述组织贴靠面的背面设有温度传感器。 The adsorption of the ablation catheter of claim 2, characterized in that the electrode arm is provided with abutment surface tissue, and the tissue against the back surface is provided with a temperature sensor.
5. 根据权利要求2所述的吸附式消融导管,其特征在于,所述电极臂包括射频发射电极臂和射频接收电极臂。 The adsorption of the ablation catheter according to claim 2, wherein said arm electrode includes a radio frequency transmitter and radio frequency receiver horn horn.
6. 根据权利要求1所述的吸附式消融导管,其特征在于,所述电极部分在管体轴线上的投影超出管体远端。 Adsorption according to claim 1, said ablation catheter, wherein said electrode portion projected on the axis of the body beyond the distal end of the tubular body.
7. 根据权利要求1所述的吸附式消融导管,其特征在于,所述管体内部设有相互独立的导线腔和气道,且所述气道与吸附口连通。 Adsorption according to claim 1, said ablation catheter, wherein said tubular inner body is provided with mutually independent guide wire lumen airway, the airway and communicating with the suction port. S.根据权利要求7所述的吸附式消融导管,其特征在于,所述吸附口通过气道与另设的负压源连通。 S. adsorption according to claim 7, said ablation catheter, wherein the suction port in communication with a vacuum source via separate airways.
9. 一种消融装置,其特征在于,包括射频源及与所述射频源连接的上述权利要求丨〜8中任意一项所述的吸附式消融导管。 An ablation apparatus comprising an RF source and said RF source connected to said claimed in any of claims Shu ~ 8 Adsorption one of the ablation catheter.
CN201610380183.3A 2016-06-01 2016-06-01 Adsorption-type ablation catheter and ablation device CN107440785A (en)

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Publication number Priority date Publication date Assignee Title
CN1159154A (en) * 1994-08-12 1997-09-10 丽他医学体系股份有限公司 Multiple electrode ablation apparatus
US20100081987A1 (en) * 2008-10-01 2010-04-01 Christian Steven C Vacuum-Stabilized Ablation System
CN104510532A (en) * 2013-09-30 2015-04-15 王新 Conformal radio frequency ablation electrode
CN204698679U (en) * 2015-04-15 2015-10-14 杭州睿笛生物科技有限公司 Nanosecond pulse tumour melts negative pressure electrode
US20150328449A1 (en) * 2012-12-21 2015-11-19 University College Cork - National University Of Ireland, Cork A thoracoscopic electroporation device with a suction head and with needle electrodes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1159154A (en) * 1994-08-12 1997-09-10 丽他医学体系股份有限公司 Multiple electrode ablation apparatus
US20100081987A1 (en) * 2008-10-01 2010-04-01 Christian Steven C Vacuum-Stabilized Ablation System
US20150328449A1 (en) * 2012-12-21 2015-11-19 University College Cork - National University Of Ireland, Cork A thoracoscopic electroporation device with a suction head and with needle electrodes
CN104510532A (en) * 2013-09-30 2015-04-15 王新 Conformal radio frequency ablation electrode
CN204698679U (en) * 2015-04-15 2015-10-14 杭州睿笛生物科技有限公司 Nanosecond pulse tumour melts negative pressure electrode

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