技术领域technical field
本实用新型涉及一种可以通过注射稀盐酸扩大消融范围的水冷微波消融天线，属于微波消融针技术领域。The utility model relates to a water-cooled microwave ablation antenna capable of enlarging the ablation range by injecting dilute hydrochloric acid, which belongs to the technical field of microwave ablation needles.
背景技术Background technique
随着现代科技与肿瘤学的进步，近十年来，国内微波肿瘤消融技术取得了突破性的紧张。微波肿瘤消融是利用微波能作用组织即可产生热效应，在数分钟到十数分钟的时间内，其热场中心温度可达100℃以上，肿瘤组织在瞬间高温下被凝固、灭活，达到肿瘤消融治疗的目的。微波肿瘤消融术是将微波消融针介入人体组织的病灶，由其前端持续发射微波能，以实施手术，因其效率高，创口小，并且对组织的作用深度及范围大小均可控，适用于全身实体肿瘤的消融手术。With the advancement of modern technology and oncology, domestic microwave tumor ablation technology has made breakthroughs in the past ten years. Microwave tumor ablation is to use microwave energy to act on tissues to produce thermal effects. Within a few minutes to tens of minutes, the central temperature of the thermal field can reach above 100°C. Purpose of ablation therapy. Microwave tumor ablation is to insert a microwave ablation needle into the lesion of human tissue, and the front end continuously emits microwave energy to perform the operation. Because of its high efficiency, small wound, and controllable depth and range of effect on the tissue, it is suitable for Ablation of solid tumors throughout the body.
现有水冷微波消融天线在大功率使用时，其前端辐射器（针尖处）的工作温度高（大于100℃），针尖处的组织容易碳化，从而影响微波能的发射，造成消融损毁的范围小，消融形态不接近于球形等缺陷，并且现有的水冷微波消融针形天线只能单纯用于物理消融，不能同时结合稀盐酸的化学消融治疗，而对于肿瘤如果多种方法同时治疗将可大幅度提高治疗效果。因此对于肿瘤的消融疗效有待进一步提高；故有必要对其结构做进一步的研究和改进。When the existing water-cooled microwave ablation antenna is used at high power, the working temperature of the front-end radiator (needle tip) is high (greater than 100°C), and the tissue at the needle tip is easily carbonized, which affects the emission of microwave energy and causes a small range of ablation damage , the ablation shape is not close to spherical defects, and the existing water-cooled microwave ablation needle antenna can only be used for physical ablation, and cannot be combined with chemical ablation of dilute hydrochloric acid at the same time. Increases healing effect by a large margin. Therefore, the curative effect of tumor ablation needs to be further improved; therefore, it is necessary to further study and improve its structure.
实用新型内容Utility model content
本实用新型所要解决的技术问题是，克服现有技术的上述缺点，提供一种具有稀盐酸注射结构的水冷微波消融天线。The technical problem to be solved by the utility model is to overcome the above-mentioned shortcomings of the prior art and provide a water-cooled microwave ablation antenna with dilute hydrochloric acid injection structure.
为了解决以上技术问题，本实用新型提供的一种具有稀盐酸注射结构的水冷微波消融天线，其特征在于包括有：绝缘刺头、极芯、同轴电缆、引水管、扼流环，所述的极芯置于绝缘刺头的中心盲孔内，所述扼流环、引水管依次套在同轴电缆外，扼流环的尾部与同轴电缆密封焊接，引水管的头部与扼流环焊接固定，扼流环前端套装在绝缘刺头的后部第一抬肩外圆上并通过胶粘结固定，所述天线还具有套在引水管外的内管和套在所述内管外的外管，所述内管的前端套装在扼流环外并通过胶粘结固定，所述外管的前端套装在绝缘刺头的后部第二抬肩外圆上并通过胶粘结固定，所述绝缘刺头后部的第二抬肩外圆外径大于第一抬肩外圆的外径，所述外管的前部沿径向均匀开设有出水孔；所述引水管与同轴电缆之间的间隙形成进水道，所述引水管与内管之间的间隙形成出水道；外管与内管之间的间隙形成稀盐酸注射通道。In order to solve the above technical problems, the utility model provides a water-cooled microwave ablation antenna with dilute hydrochloric acid injection structure, which is characterized in that it includes: an insulating thorn, a pole core, a coaxial cable, a water pipe, and a choke ring. The pole core is placed in the central blind hole of the insulating thorn head, the choke ring and the water diversion pipe are placed outside the coaxial cable in turn, the tail of the choke ring is sealed and welded to the coaxial cable, the head of the water diversion pipe is connected to the choke The ring is welded and fixed, and the front end of the choke ring is set on the outer circle of the first shoulder at the rear of the insulating thorn and fixed by glue bonding. The outer outer tube, the front end of the inner tube is set outside the choke ring and fixed by glue bonding, the front end of the outer tube is set on the outer circle of the second raised shoulder at the rear of the insulating thorn and bonded by glue fixed, the outer diameter of the outer circle of the second raised shoulder at the rear of the insulating thorn head is greater than the outer diameter of the outer circle of the first raised shoulder, and the front part of the outer tube is evenly provided with water outlet holes in the radial direction; the water diversion pipe and The gap between the coaxial cables forms a water inlet, the gap between the water diversion pipe and the inner tube forms a water outlet; the gap between the outer tube and the inner tube forms a dilute hydrochloric acid injection channel.
本实用新型具有稀盐酸注射结构的水冷微波消融天线还具有如下特征：The water-cooled microwave ablation antenna with dilute hydrochloric acid injection structure of the utility model also has the following features:
1、扼流环的外径为2.2mm，同轴电缆外导体的前端至扼流环前端的距离为1mm，极芯与同轴电缆的外导体之间形成尺寸为2mm的发射窗口。1. The outer diameter of the choke ring is 2.2mm, the distance from the front end of the coaxial cable outer conductor to the front end of the choke ring is 1mm, and a launch window with a size of 2mm is formed between the pole core and the outer conductor of the coaxial cable.
2、所述绝缘刺头的后部第二抬肩外圆开设环形槽，环形槽内嵌入有密封橡胶圈，所述密封橡胶圈被外管限位于该环形槽内。2. An annular groove is formed on the outer circle of the second lifting shoulder at the rear of the insulating stab head, and a sealing rubber ring is embedded in the annular groove, and the sealing rubber ring is restricted in the annular groove by the outer tube.
3、所述天线还具有同轴射频连接器和手柄，所述同轴电缆的尾部与同轴射频连接器连接，同轴射频连接器容纳在所述手柄内。3. The antenna also has a coaxial radio frequency connector and a handle, the tail of the coaxial cable is connected to the coaxial radio frequency connector, and the coaxial radio frequency connector is accommodated in the handle.
4、所述手柄内具有由隔水圈分离开的进水腔和出水腔，所述进水道和出水道的后部分别与所述进水腔和出水腔连通。4. There is a water inlet chamber and a water outlet chamber separated by a water barrier in the handle, and the rear parts of the water inlet channel and the water outlet channel communicate with the water inlet chamber and the water outlet chamber respectively.
本天线设计有用于注射稀盐酸的通道，在微波消融过程中利用注射通道注射稀盐酸，将物理消融和化学消融相结合，使得损毁肿瘤的范围大且形态好，有效提高消融疗效。此外，本实用新型消融天线特制有扼流环，与同轴电缆外导体短路，可确保天线的消融范围更大、更圆，适用于较大肿瘤的消融，有利于主刀医生对手术的控制。此外，扼流环也可以起到了防止冷却水进入针头内部的作用。The antenna is designed with a channel for injecting dilute hydrochloric acid. During the microwave ablation process, the injection channel is used to inject dilute hydrochloric acid, combining physical ablation and chemical ablation, so that the damaged tumor area is large and the shape is good, and the ablation effect is effectively improved. In addition, the ablation antenna of the utility model is specially made with a choke ring, which is short-circuited with the outer conductor of the coaxial cable, which can ensure a larger and rounder ablation range of the antenna, and is suitable for the ablation of larger tumors, which is beneficial to the surgeon's control over the operation. In addition, the choke ring can also play a role in preventing cooling water from entering the inside of the needle.
附图说明Description of drawings
下面结合附图对本实用新型作进一步的说明。Below in conjunction with accompanying drawing, the utility model is further described.
图1是具有稀盐酸注射结构的水冷微波消融天线前端部分剖视图。Fig. 1 is a partial sectional view of the front end of a water-cooled microwave ablation antenna with dilute hydrochloric acid injection structure.
图2是具有稀盐酸注射结构的水冷微波消融天线整体结构示意图。Fig. 2 is a schematic diagram of the overall structure of the water-cooled microwave ablation antenna with dilute hydrochloric acid injection structure.
图中标号示意如下： 1-绝缘刺头，2-极芯，3-同轴电缆，4-扼流环，5-引水管，61-内管，62-外管，63-出水孔，64-密封橡胶圈，7-胶，8-外导体，9-介质层，10-出水腔，11-进水腔，12-水嘴，13-隔水圈。The labels in the figure are as follows: 1-insulation thorn, 2-pole core, 3-coaxial cable, 4-choke ring, 5-water pipe, 61-inner pipe, 62-outer pipe, 63-water outlet, 64 - sealing rubber ring, 7 - glue, 8 - outer conductor, 9 - medium layer, 10 - water outlet cavity, 11 - water inlet cavity, 12 - water nozzle, 13 - water barrier.
具体实施方式Detailed ways
为使本实用新型实施例的目的、技术方案和优点更加清楚，下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述。In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model.
如图1、图2所示，本实用新型实施例具有稀盐酸注射结构的水冷微波消融天线，包括有：绝缘刺头1、极芯2、同轴电缆3、引水管5、扼流环4，极芯2置于绝缘刺头1的中心盲孔内，扼流环4、引水管5依次套在同轴电缆3外，扼流环4的尾部与同轴电缆3密封焊接，引水管5的头部与扼流环4焊接固定，扼流环4前端套装在绝缘刺头1的后部第一抬肩外圆上并通过胶粘结固定，天线还具有套在引水管5外的内管61和套在内管61外的外管62，内管61的前端套装在扼流环4外并通过胶粘结固定，外管62的前端套装在绝缘刺头1的后部第二抬肩外圆上并通过胶粘结固定，绝缘刺头1后部的第二抬肩外圆外径大于第一抬肩外圆的外径，外管62的前部沿径向均匀开设有出水孔63；引水管5与同轴电缆3之间的间隙形成进水道，引水管5与内管61之间的间隙形成出水道；外管61与内管62之间的间隙形成稀盐酸注射通道。绝缘刺头1的后部第二抬肩外圆开设环形槽，环形槽内嵌入有密封橡胶圈64，密封橡胶圈64被外管62限位于该环形槽内。本天线还具有同轴射频连接器和手柄，同轴电缆的尾部与同轴射频连接器连接，同轴射频连接器容纳在手柄内；手柄内具有由隔水圈13分离开的进水腔11和出水腔10，进水道和出水道的后部分别与进水腔11和出水腔10连通。本实施例中，扼流环的外径为2.2mm，同轴电缆外导体的前端至扼流环前端的距离为1mm，极芯与同轴电缆的外导体之间形成尺寸为2mm的发射窗口。As shown in Figure 1 and Figure 2, the embodiment of the utility model has a water-cooled microwave ablation antenna with dilute hydrochloric acid injection structure, including: an insulating thorn head 1, a pole core 2, a coaxial cable 3, a water diversion pipe 5, and a choke ring 4 , the pole core 2 is placed in the central blind hole of the insulating thorn head 1, the choke ring 4 and the water diversion pipe 5 are placed outside the coaxial cable 3 in turn, the tail of the choke ring 4 is sealed and welded to the coaxial cable 3, and the water diversion pipe 5 The head of the choke ring 4 is welded and fixed, and the front end of the choke ring 4 is set on the outer circle of the first shoulder at the rear of the insulating thorn head 1 and fixed by glue bonding. Tube 61 and outer tube 62 sleeved outside the inner tube 61. The front end of the inner tube 61 is set outside the choke ring 4 and fixed by glue bonding. On the outer circle of the shoulder and fixed by glue bonding, the outer diameter of the outer circle of the second raised shoulder at the rear of the insulating thorn head 1 is greater than the outer diameter of the outer circle of the first raised shoulder, and the front part of the outer tube 62 is uniformly provided with a water outlet hole 63; the gap between the water diversion pipe 5 and the coaxial cable 3 forms a water inlet, the gap between the diversion pipe 5 and the inner pipe 61 forms a water outlet; the gap between the outer pipe 61 and the inner pipe 62 forms a dilute hydrochloric acid injection channel . The outer circle of the second raised shoulder at the rear of the insulating thorn head 1 is provided with an annular groove, and a sealing rubber ring 64 is embedded in the annular groove, and the sealing rubber ring 64 is limited in the annular groove by the outer tube 62 . The antenna also has a coaxial radio frequency connector and a handle, the tail of the coaxial cable is connected to the coaxial radio frequency connector, and the coaxial radio frequency connector is accommodated in the handle; the handle has a water inlet cavity 11 separated by a water barrier 13 and the water outlet chamber 10, the rear parts of the water inlet channel and the water outlet channel communicate with the water inlet chamber 11 and the water outlet chamber 10 respectively. In this embodiment, the outer diameter of the choke ring is 2.2 mm, the distance from the front end of the outer conductor of the coaxial cable to the front end of the choke ring is 1 mm, and an emission window with a size of 2 mm is formed between the pole core and the outer conductor of the coaxial cable .
除上述实施例外，本实用新型还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案，均落在本实用新型要求的保护范围。In addition to the above embodiments, the utility model can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173162.5UCN204581504U (en) | 2015-03-25 | 2015-03-25 | A kind of water-cooled microwave ablation antenna with dilute hydrochloric acid injection structure |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173162.5UCN204581504U (en) | 2015-03-25 | 2015-03-25 | A kind of water-cooled microwave ablation antenna with dilute hydrochloric acid injection structure |
| Publication Number | Publication Date |
|---|---|
| CN204581504Utrue CN204581504U (en) | 2015-08-26 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520173162.5UExpired - LifetimeCN204581504U (en) | 2015-03-25 | 2015-03-25 | A kind of water-cooled microwave ablation antenna with dilute hydrochloric acid injection structure |
| Country | Link |
|---|---|
| CN (1) | CN204581504U (en) |
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| CN106667575A (en)* | 2017-02-27 | 2017-05-17 | 南京康友医疗科技有限公司 | Ablation antenna with external pipeline |
| CN109276312A (en)* | 2018-10-22 | 2019-01-29 | 苏州恒瑞迪生医疗科技有限公司 | A kind of microwave ablation aciculiform antenna comprising packaged type chokes ring or circle |
| CN111772776A (en)* | 2020-07-16 | 2020-10-16 | 嘉兴市第二医院 | A radio frequency and chemical integrated ablation device |
| CN112353487A (en)* | 2020-11-05 | 2021-02-12 | 新疆医科大学第一附属医院 | Medical combined ablation needle capable of monitoring pressure and ablation method |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105816240A (en)* | 2016-05-24 | 2016-08-03 | 赛诺微医疗科技(北京)有限公司 | Antenna assembly for microwave ablation and microwave ablation probe provided with same |
| CN105816240B (en)* | 2016-05-24 | 2018-09-28 | 赛诺微医疗科技（浙江）有限公司 | For the antenna module of microwave ablation and using its microwave melt needle |
| US11266464B2 (en) | 2016-05-24 | 2022-03-08 | Surgnova Healthcare Technologies (Zhejiang) Co., Ltd. | Antenna assembly for microwave ablation and microwave ablation needle using the same |
| CN106667575A (en)* | 2017-02-27 | 2017-05-17 | 南京康友医疗科技有限公司 | Ablation antenna with external pipeline |
| CN109276312A (en)* | 2018-10-22 | 2019-01-29 | 苏州恒瑞迪生医疗科技有限公司 | A kind of microwave ablation aciculiform antenna comprising packaged type chokes ring or circle |
| CN109276312B (en)* | 2018-10-22 | 2021-04-13 | 苏州恒瑞迪生医疗科技有限公司 | Microwave ablation needle antenna comprising movable choke ring or ring |
| CN111772776A (en)* | 2020-07-16 | 2020-10-16 | 嘉兴市第二医院 | A radio frequency and chemical integrated ablation device |
| CN112353487A (en)* | 2020-11-05 | 2021-02-12 | 新疆医科大学第一附属医院 | Medical combined ablation needle capable of monitoring pressure and ablation method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term | Granted publication date:20150826 |