WO2019095189A1 - 一种陡脉冲电场肿瘤治疗电极 - Google Patents
一种陡脉冲电场肿瘤治疗电极 Download PDFInfo
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- WO2019095189A1 WO2019095189A1 PCT/CN2017/111311 CN2017111311W WO2019095189A1 WO 2019095189 A1 WO2019095189 A1 WO 2019095189A1 CN 2017111311 W CN2017111311 W CN 2017111311W WO 2019095189 A1 WO2019095189 A1 WO 2019095189A1
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- puncture needle
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- pulse electric
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
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- the invention relates to the technical field of medical instruments, in particular to a steep pulse electric field tumor treatment electrode.
- Cancer is one of the major diseases that threaten human health and life. According to a data released by the World Anti-Cancer Alliance (UICC), in 2008, the number of cancer patients worldwide was 12.7 million, of which 7.6 million were fatal. According to the survey report of the Ministry of Health of China, cancer mortality has increased by more than 80% in the past 30 years. At present, cancer has become the number one killer of important diseases and health leading to the death of urban and rural residents.
- the World Health Organization (WHO) report also pointed out that globally, the incidence of new cancer cases and cancer patients will also increase at a rate of 1% per year, while in China, Russia, India and other developing countries. It will be faster, and it is estimated that by 2030, there will be 27 million new cancer cases worldwide, and the number of people dying from cancer will reach 17 million.
- the treatment of cancer mainly includes surgery, radiotherapy and chemotherapy, but these traditional treatments are limited by factors such as indications, contraindications and side effects, so the treatment effect is still not ideal, so seek new cancer.
- Therapeutic methods have always been an important topic in the medical field and biomedical engineering.
- Irreversible electroporation is the application of electrical impulses to cancer tissue, causing irreversible electrical breakdown of cancer cells. destroyed The survival conditions of cancer cells have reached the goal of killing cancer cells.
- the existing puncture needle passes through a plurality of puncture needles in the same sleeve. Due to the limitation of the inner diameter of the sleeve, the diameter of the puncture needle is thin and easy to be damaged, and the depth accuracy of the puncture needle inserted into the diseased tissue is poor. In turn, the treatment effect is greatly reduced.
- the object of the present invention is to provide a steep pulse electric field tumor treatment electrode for solving the problem that the existing puncture needle is easily damaged, and the depth accuracy of the puncture needle inserted into the diseased tissue is poor.
- the present invention provides a steep pulse electric field tumor treatment electrode, the steep pulse electric field tumor treatment electrode comprising a fixed disk, a steering wheel, and at least three metal puncture needles having a tip-shaped tip, each of the metal puncture needles
- the inside of the needle is provided with a water passage, and a rear end of each of the metal puncture needles is sleeved with a gripper having a cavity, and the cavity is provided with a nozzle corresponding to the water passage and the a metal connecting member to which the metal puncture needle is connected, an outer peripheral surface of each of the metal puncture needles is covered with an insulating protective layer, and a front end of the metal puncture needle is formed with a bare portion, and the exposed portion is provided with a plurality of a filling hole communicating with the water passage, the fixing plate being disposed in parallel with the steering wheel, wherein one of the metal puncture needles serves as a center fixing puncture needle, and the center fixing puncture needle sequentially penetrates the
- At least one of the metal puncture needles remains as a peripheral fixed puncture needle, and the peripheral fixed puncture needle penetrates the steering wheel, and the grip of the outer peripheral fixed puncture needle rear end is connected to the fixed plate.
- a connecting member is disposed in a middle portion of each of the movable puncture needle and the peripheral fixed puncture needle, one end of the connecting member is connected to the central fixed puncture needle, and the other end is fixed with the movable puncture needle or the peripheral fixed puncture needle. connection.
- each of the movable puncture needles is provided with a positioning member, and the fixing disc and the edge of the steering wheel are provided with a plurality of slots, and the positioning member is engaged in the slots.
- the metal puncture needle is provided with a scale.
- the length of the exposed portion of the front end of the metal puncture needle is greater than 2 cm.
- the injection holes are equally spaced apart from the exposed portion of the front end of the metal puncture needle.
- the metal puncture needle has a circular cross section.
- the metal puncture needle has an outer diameter of 0.15-1.5 mm.
- the invention has the following advantages: the steep pulse electric field tumor treatment electrode of the invention introduces a current into a lesion portion of a patient through a metal puncture needle, introduces the syrup into the lesion through a water passage inside the metal puncture needle, and combines with the drug treatment by electric shock treatment to kill Tumor cells, thereby achieving the purpose of curing the tumor.
- the steep pulse electric field tumor treatment electrode of the invention has the advantages of simple structure, good therapeutic effect, low use cost and short operation time.
- Embodiment 1 is a side view showing the structure of a steep pulse electric field tumor treatment electrode according to Embodiment 1 of the present invention.
- FIG. 2 is a schematic bottom view showing the structure of a steep pulse electric field tumor treatment electrode according to Embodiment 1 of the present invention.
- FIG. 3 is a schematic top plan view of a steep pulse electric field tumor treatment electrode according to Embodiment 1 of the present invention.
- the steep pulse electric field tumor treatment electrode comprises a fixed disc 7, a steering wheel 8 and four metal puncture needles, and the steep pulse electric field tumor treatment electrode of the present invention is worn by metal.
- the lancet introduces electric current into the lesion site of the patient, introduces the syrup into the lesion through the water passage inside the metal puncture needle, and combines the electric shock treatment with the drug treatment to kill the tumor cell, thereby achieving the purpose of curing the tumor.
- the steep pulse electric field tumor treatment electrode of the invention has the advantages of simple structure, good therapeutic effect, low use cost and short operation time.
- the front end of the metal puncture needle has a tapered shape, so that the metal puncture needle can be easily inserted into the lesion of the patient, and the inside of the metal puncture needle is provided with a water passage along the length thereof, and the cross section of the metal puncture needle is circular.
- the outer diameter is 0.15-1.5mm, and the outer diameter of the metal puncture needle is specifically vertical to obtain an optimum value by experimental results.
- the steep pulse electric field tumor treatment electrode in this embodiment is appropriately limited in diameter due to the limitation of the outer sleeve. Therefore, the metal puncture needle of the present embodiment has higher structural strength and is less likely to be damaged.
- the outer portion of the metal puncture needle is wrapped with a layer to keep the front end of the metal puncture needle exposed to the exposed insulating protective layer 11.
- the insulating protective layer 11 is made of plastic, medical polymer material, rubber or other materials.
- the metal puncture needle front end has a length of 4 cm, and the exposed portion of the front end of the metal puncture needle is provided with a plurality of injection holes 12 communicating with the water passage, and the injection hole in the embodiment is used to infiltrate the drug into the tissue at different depths of the lesion portion of the patient. 12 equidistantly spaced apart at the exposed end of the metal puncture needle.
- the front end of the holding member 2 is fixedly sleeved on the rear end of the metal puncture needle, and the rear end of the holding member 2 is provided with a cavity, and the cavity is provided with a medicine injection nozzle and a metal connecting member 23, and the side wall of the holding member 2 is disposed
- the injection port 17 connected to the injection nozzle communicates with the water passage.
- the injection port 17 is connected to the syrup injector through a pipeline, and the syrup injected by the syrup injector passes through the water passage through the respective injection holes 12 It flows out and penetrates into tissues of different depths in the patient's lesion.
- the metal connector 23 is connected to the metal puncture needle, and the metal connector 23 is connected to the high voltage pulse power source through a wire.
- One of the metal puncture needles is used as the center fixed puncture needle 1
- one metal puncture needle is used as the peripheral fixed puncture needle 3
- the remaining two metal puncture needles are used as the active puncture needle 4.
- the fixed disc 7 and the steering wheel 8 are arranged in parallel with each other, and the fixed disc 7 and the steering disc 8 are both circular plate-like structures.
- the fixed disc 7 is symmetrically arranged with two arc-shaped movable movable holes, and the width of the movable hole of the holding member The outer diameter of the grip member 2 at the rear end of the movable puncture needle 4 is matched.
- the steering wheel 8 is provided with two arc-shaped puncture needle movable holes 6, and the position of the movable member hole and the puncture needle movable hole 6 are one by one. correspond.
- the central fixed puncture needle 1 sequentially penetrates the center of the fixed disc 7 and the steering wheel 8,
- the two movable puncture needles 4 are respectively passed through the puncture needle movable hole 6 on the steering wheel 8, and the gripping members 2 of the movable puncture needle 4 are respectively movably engaged in the movable holes of the gripping member 2 on the fixed disc 7, and the outer circumference is fixed.
- the puncture needle 3 penetrates the steering wheel 8, and the gripping member 2 at the rear end of the outer peripheral fixed puncture needle 3 is connected to the fixed disk 7.
- a connecting member 9 is disposed in the middle of each of the movable puncture needle 4 and the peripheral fixed puncture needle 3, and one end of the connecting member 9 is movably sleeved in the middle of the central fixed puncture needle 1, and One end is provided with a card slot 10 having a C-shaped cross section, and the other end of the connecting member 9 is movably engaged with the outer peripheral surface of the movable puncture needle 4 or the outer peripheral fixed puncture needle 3 through the card slot 10, thereby realizing the puncture through the connecting member 9.
- the needle 4 and the peripheral fixed puncture needle 3 are connected to the central fixation puncture needle 1.
- a positioning member 16 is disposed on the gripping member 2 of each movable puncture needle 4, and the positioning member 16 includes an elastic portion 15 and two flying wing portions 14 respectively connected at opposite ends of the elastic portion 15, and the elastic portion 15 has a certain curvature, thereby
- the elastic portion 15 and the two flying wing portions 14 are respectively provided with a rib, and the edges of the fixed disk 7 and the steering wheel 8 are provided with a plurality of slots 11 respectively.
- the embodiment is based on the embodiment 1.
- the difference between the embodiment and the embodiment 1 is that the metal puncture needle in the embodiment is provided with a scale, and the medical staff can intuitively observe the insertion of the metal puncture needle into the patient's lesion according to the scale.
- the depth of the site is treated for tissue at different depths of the lesion.
- the output high-frequency high-voltage pulse current is introduced into the patient's lesion through the central fixed puncture needle 1, and the peripheral fixed puncture needle 3 or the active puncture needle 4 is used as a return electrode to introduce a high-frequency high-voltage pulse current into the input end of the high-voltage pulse power source, when the high-frequency high-voltage When the pulse current passes through the patient's diseased cells, the high-frequency and high-voltage pulse current will destroy the cell membrane of the diseased cell, thereby killing the diseased cells. Since the peripheral fixed puncture needle 3 or the active puncture needle 4 is used as the return electrode, the high-frequency high-voltage pulse current is only The lesion passes through the lesion and does not cause damage to healthy cells outside the diseased tissue.
- the syrup can be injected into the central injection needle 1, the peripheral fixed puncture needle 3, and the injection port 17 of the movable puncture needle 4 through the syrup injector, so that the syrup flows out from each injection hole and penetrates into the lesion at different depths of the patient.
- Tissue combined with medical treatment by electric shock therapy, can kill tumor cells more quickly and improve the therapeutic effect.
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Abstract
一种陡脉冲电场肿瘤治疗电极，陡脉冲电场肿瘤治疗电极包括固定盘（7）、转向盘（8）、至少三根金属穿刺针，每根金属穿刺针的后端套设具有把持件（2），空腔内设置有注药嘴以及与金属穿刺针连接的金属连接件（23），每根金属穿刺针的外周面包裹有绝缘保护层（11），且使金属穿刺针的前端形成裸露部，裸露部设置有多个与过水通道连通的注药孔（12），其中一根金属穿刺针作为中心固定穿刺针（3），中心固定穿刺针（3）依次贯穿固定盘（7）与转向盘（8），剩余金属穿刺针则作为活动穿刺针（4），活动穿刺针（4）分别从转向盘（8）上穿刺针活动孔（6）穿过，活动穿刺针（4）的把持件（2）分别可活动地卡设于固定盘（7）上的把持件（2）活动孔中。该陡脉冲电场肿瘤治疗电极具有结构简单、治疗效果好、使用成本低和手术时间短的优点。
Description
本发明涉及医疗器械技术领域，具体涉及一种陡脉冲电场肿瘤治疗电极。
癌症是威胁人类健康和生命的主要疾病之一，根据世界抗癌联盟(UICC)发布的一项数据表明：在2008年，世界范围内的癌症患者人数为1270万，其中死亡人数高达760万。另据中国卫生部的调查统计报告显示：在过去的30年间，癌症死亡率增长了八成以上，目前癌症已经成为导致城乡居民死亡的重要的疾病和健康的头号杀手。世界卫生组织(WHO)的报告也指出：在全球范围内，新增癌症病例和癌症患者死亡率也将会以每年1％的速度递增，而在中国、俄罗斯、印度等发展中国家的递增速度会更快，预计到2030年，全球将新增2700万癌症病例，死于癌症的人数将达到1700万人。
目前癌症的治疗方法主要有手术治疗、放射性治疗和化疗等，但是这些传统的治疗手段由于受到其适应症、禁忌症和副作用等因素的限制，所以治疗效果仍然不够理想，因此，寻求新的癌症治疗方法一直是医疗领域和生物医学工程领域的重要课题。
近年来的研究发现，细胞在发生电穿孔效应后，随着脉冲强度的升高和脉冲作用时间的增加，将发生细胞膜的不可逆性电击穿，造成细胞膜破裂直至细胞死亡。利用这一特性，研究人员提出了不可逆电穿刺疗法，作为一种新型的非热效应的肿瘤消融手段，不可逆电穿孔疗法是将电脉冲作用于癌症组织，使癌症细胞发生不可逆电击穿，这样就破坏了
癌症细胞的生存条件，达到了杀伤癌症细胞的目的。但是现有的穿刺针是在同一套筒内穿过多根穿刺针，由于受套筒内径的限制，穿刺针的直径较细，容易损坏，而且穿刺针插入病变组织的深度准确性较差，进而使治疗效果大打折扣。
发明内容
本发明的目的在于提供一种陡脉冲电场肿瘤治疗电极，用以解决现有的穿刺针容易损坏，而且穿刺针插入病变组织的深度准确性较差的问题。
为实现上述目的，本发明提供一种陡脉冲电场肿瘤治疗电极，所述陡脉冲电场肿瘤治疗电极包括固定盘、转向盘、至少三根前端呈尖锥状的金属穿刺针，每根所述金属穿刺针的内部设置有过水通道，每根所述金属穿刺针的后端套设具有空腔的把持件，所述空腔内设置有与所述过水通道连通的注药嘴以及与所述金属穿刺针连接的金属连接件，每根所述金属穿刺针的外周面包裹有绝缘保护层，且使所述金属穿刺针的前端形成裸露部，所述裸露部设置有多个与所述过水通道连通的注药孔，所述固定盘与所述转向盘平行设置，其中一根所述金属穿刺针作为中心固定穿刺针，所述中心固定穿刺针依次贯穿所述固定盘与所述转向盘，剩余所述金属穿刺针则作为活动穿刺针，所述活动穿刺针分别从所述转向盘上的穿刺针活动孔穿过，所述活动穿刺针的把持件分别可活动地卡设于所述固定盘上的把持件活动孔中。
优选的，剩余所述金属穿刺针中的至少一根金属穿刺针作为外周固定穿刺针，所述外周固定穿刺针贯穿所述转向盘，所述外周固定穿刺针后端的把持件与固定盘连接。
优选的，每根所述活动穿刺针和外周固定穿刺针的中部设置一个连接件，所述连接件的一端与所述中心固定穿刺针连接，另一端与所述活动穿刺针或外周固定穿刺针连接。
优选的，每个所述活动穿刺针的把持件上设置定位件，所述固定盘和转向盘的边缘设置有多个齿槽，所述定位件卡设于所述齿槽中。
优选的，所述金属穿刺针上设置有刻度。
优选的，所述金属穿刺针前端的裸露部的长度大于2cm。
优选的，所述注药孔等距间隔布置于所述金属穿刺针前端的裸露部。
优选的，所述金属穿刺针的横截面呈圆环形。
优选的，所述金属穿刺针的外径为0.15-1.5mm。
本发明具有如下优点：本发明的陡脉冲电场肿瘤治疗电极通过金属穿刺针将电流导入患者病变部位，通过金属穿刺针内部的过水通道将药水导入病变，通过电击治疗与药物治疗结合来杀死肿瘤细胞，从而达到治愈肿瘤的目的。本发明的陡脉冲电场肿瘤治疗电极具有结构简单、治疗效果好、使用成本低和手术时间短的优点。
图1为本发明实施例1中陡脉冲电场肿瘤治疗电极的侧视结构示意图。
图2为本发明实施例1中陡脉冲电场肿瘤治疗电极的仰视结构示意图。
图3为本发明实施例1中陡脉冲电场肿瘤治疗电极的俯视结构示意图。
以下实施例用于说明本发明，但不用来限制本发明的范围。
实施例1
如图1、2、3所示，该陡脉冲电场肿瘤治疗电极包括固定盘7、转向盘8和四根金属穿刺针，本发明的陡脉冲电场肿瘤治疗电极通过金属穿
刺针将电流导入患者病变部位，通过金属穿刺针内部的过水通道将药水导入病变，通过电击治疗与药物治疗结合来杀死肿瘤细胞，从而达到治愈肿瘤的目的。本发明的陡脉冲电场肿瘤治疗电极具有结构简单、治疗效果好、使用成本低和手术时间短的优点。
金属穿刺针的前端呈尖锥状，以便于金属穿刺针可以轻松插入患者的病变部位，金属穿刺针的内部沿着其长度方向设置有过水通道，金属穿刺针的横截面呈圆环形，其外径为0.15-1.5mm，金属穿刺针的外径具体竖直以实验结果取得最优值。本实施例中的陡脉冲电场肿瘤治疗电极由于不受外部套筒限制，直径可适当增加，因此，本实施例中金属穿刺针的结构强度更高，且不易损坏。金属穿刺针的外部包裹一层使金属穿刺针前端保持裸露的绝缘保护层11，绝缘保护层11为塑料、医用高分子材料、橡胶或其他材料制成，在本实施例中，金属穿刺针前端的裸露部的长度为4cm，金属穿刺针前端的裸露部设置有多个与过水通道连通的注药孔12，为了使药水渗入患者病变部位不同深度的组织，本实施例中的注药孔12等距间隔布置于金属穿刺针前端的裸露部。把持件2的前端固定套设于金属穿刺针的后端，把持件2的后端设置有空腔，空腔内设置有注药嘴和金属连接件23，把持件2的侧壁上设置有与注药嘴连通的注药口17，注药嘴与过水通道连通，使用时，将注药口17与药水注射器通过管线连接，药水注射器注射的药水通过过水通道从各个注药孔12中流出，渗入患者病变部位不同深度的组织中。金属连接件23与金属穿刺针连接，将金属连接件23与高压脉冲电源通过导线连接。其中一根金属穿刺针作为中心固定穿刺针1，一根金属穿刺针作为外周固定穿刺针3，剩余两根金属穿刺针则作为活动穿刺针4。
固定盘7与转向盘8互相平行设置，固定盘7与转向盘8均为圆形板状结构，固定盘7上对称设置有两条呈弧形的持件活动孔，持件活动孔的宽度与活动穿刺针4后端的把持件2的外径匹配，同样的，转向盘8上设置有两条呈弧形的穿刺针活动孔6，持件活动孔与穿刺针活动孔6的位置一一对应。中心固定穿刺针1依次贯穿固定盘7与转向盘8的中心，
两根活动穿刺针4分别从转向盘8上的穿刺针活动孔6穿过，活动穿刺针4的把持件2分别可活动地卡设于固定盘7上的把持件2活动孔中，外周固定穿刺针3贯穿转向盘8，外周固定穿刺针3后端的把持件2与固定盘7连接。
进一步的，为了加强金属穿刺针的结构强度，每根活动穿刺针4和外周固定穿刺针3的中部设置一个连接件9，连接件9的一端活动套设于中心固定穿刺针1的中部，另一端设置有横截面呈C字形的卡槽10，连接件9的另一端通过卡槽10活动卡设于活动穿刺针4或外周固定穿刺针3的外周面，从而实现通过连接件9将活动穿刺针4和外周固定穿刺针3与中心固定穿刺针1之间的连接。
进一步的，每个活动穿刺针4的把持件2上设置定位件16，定位件16包括弹性部15和两个分别连接在弹性部15两端的飞翼部14，弹性部15具有一定弧度，从而使其具有一定在发生变形后恢复初始形状的弹性，弹性部15与两个飞翼部14的连接处分别设置一条突棱，固定盘7和转向盘8的边缘设置有多个齿槽11，通过将突棱卡设于齿槽11中，从而保持活动穿刺针4固定而无法活动，当需要调整活动穿刺针4的位置时，用手按压两个飞翼部14，使弹性部15发生变形，突棱离开齿槽11，将活动穿刺针4位置调整到预设位置时，再松开两个飞翼部14，弹性部15恢复初始形状，突棱卡设于齿槽11中。
实施例2
本实施例以实施例1为基础，本实施例与实施例1的不同之处在于，本实施例中的金属穿刺针上设置有刻度，医护人员可以根据刻度直观的观察金属穿刺针插入患者病变部位的深度，对病变部位不同深度的组织进行治疗。
工作原理：首选调整好两根活动穿刺针4的位置，将中心固定穿刺针1、外周固定穿刺针3和活动穿刺针4插入患者的病变部位，再将中心固定穿刺针1与高压脉冲电源的输出端通过导线连接，外周固定穿刺针3或活动穿刺针4与高压脉冲电源的输入端通过导线连接，高压脉冲电源
输出的高频高压脉冲电流通过中心固定穿刺针1导入患者病变部位，外周固定穿刺针3或活动穿刺针4则作为回路电极将高频高压脉冲电流导入高压脉冲电源的输入端，当高频高压脉冲电流在通过患者病变细胞时，高频高压脉冲电流会破坏病变细胞的细胞膜，从而将病变细胞杀死，由于有外周固定穿刺针3或活动穿刺针4作为回路电极，高频高压脉冲电流仅局通过病变部位，不会对病变组织外的健康细胞造成破坏。与此同时，还可通过药水注射器向中心固定穿刺针1、外周固定穿刺针3和活动穿刺针4的注药口17注射药水，使药水从各个注药孔流出，渗入患者病变部位不同深度的组织，通过电击治疗与药物治疗结合，可更加快速的杀死肿瘤细胞，提高治疗效果。
虽然，上文中已经用一般性说明及具体实施例对本发明作了详尽的描述，但在本发明基础上，可以对之做一些修改或改进，这对本领域技术人员而言是显而易见的。因此，在不偏离本发明精神的基础上所做的这些修改或改进，均属于本发明要求保护的范围。
Claims (9)
- 一种陡脉冲电场肿瘤治疗电极，所述陡脉冲电场肿瘤治疗电极包括固定盘、转向盘、至少三根前端呈尖锥状的金属穿刺针，其特征在于，每根所述金属穿刺针的内部设置有过水通道，每根所述金属穿刺针的后端套设具有空腔的把持件，所述空腔内设置有与所述过水通道连通的注药嘴以及与所述金属穿刺针连接的金属连接件，每根所述金属穿刺针的外周面包裹有绝缘保护层，且使所述金属穿刺针的前端形成裸露部，所述裸露部设置有多个与所述过水通道连通的注药孔，所述固定盘与所述转向盘平行设置，其中一根所述金属穿刺针作为中心固定穿刺针，所述中心固定穿刺针依次贯穿所述固定盘与所述转向盘，剩余所述金属穿刺针则作为活动穿刺针，所述活动穿刺针分别从所述转向盘上的穿刺针活动孔穿过，所述活动穿刺针的把持件分别可活动地卡设于所述固定盘上的把持件活动孔中。
- 根据权利要求1所述的陡脉冲电场肿瘤治疗电极，其特征在于，剩余所述金属穿刺针中的至少一根金属穿刺针作为外周固定穿刺针，所述外周固定穿刺针贯穿所述转向盘，所述外周固定穿刺针后端的把持件与固定盘连接。
- 根据权利要求2所述的陡脉冲电场肿瘤治疗电极，其特征在于，每根所述活动穿刺针和外周固定穿刺针的中部设置一个连接件，所述连接件的一端与所述中心固定穿刺针连接，另一端与所述活动穿刺针或外周固定穿刺针连接。
- 根据权利要求3所述的陡脉冲电场肿瘤治疗电极，其特征在于，每个所述活动穿刺针的把持件上设置定位件，所述固定盘和转向盘的边缘设置有多个齿槽，所述定位件卡设于所述齿槽中。
- 根据权利要求1所述的陡脉冲电场肿瘤治疗电极，其特征在于，所述金属穿刺针上设置有刻度。
- 根据权利要求2所述的陡脉冲电场肿瘤治疗电极，其特征在于， 所述金属穿刺针前端的裸露部的长度大于2cm。
- 根据权利要求1所述的陡脉冲电场肿瘤治疗电极，其特征在于，所述注药孔等距间隔布置于所述金属穿刺针前端的裸露部。
- 根据权利要求1所述的陡脉冲电场肿瘤治疗电极，其特征在于，所述金属穿刺针的横截面呈圆环形。
- 根据权利要求1所述的陡脉冲电场肿瘤治疗电极，其特征在于，所述金属穿刺针的外径为0.15-1.5mm。
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| RU2036634C1 (ru) * | 1991-07-22 | 1995-06-09 | Научно-исследовательский центр Татарстана "Восстановительная травматология и ортопедия" | Устройство для электропунктуры |
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| RU2036634C1 (ru) * | 1991-07-22 | 1995-06-09 | Научно-исследовательский центр Татарстана "Восстановительная травматология и ортопедия" | Устройство для электропунктуры |
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