CN104688335A - Microwave ablation antenna for large hepatic cellular cancer treatment - Google Patents
Microwave ablation antenna for large hepatic cellular cancer treatment Download PDFInfo
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- CN104688335A CN104688335A CN201510114533.7A CN201510114533A CN104688335A CN 104688335 A CN104688335 A CN 104688335A CN 201510114533 A CN201510114533 A CN 201510114533A CN 104688335 A CN104688335 A CN 104688335A
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- coaxial cable
- microwave ablation
- antenna
- treatment
- chokes ring
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- 238000002679 ablation Methods 0.000 title claims abstract description 31
- 238000011282 treatment Methods 0.000 title claims abstract description 21
- 206010028980 Neoplasm Diseases 0.000 title abstract description 12
- 201000011510 cancer Diseases 0.000 title abstract 5
- 230000001413 cellular effect Effects 0.000 title abstract 5
- 230000002440 hepatic effect Effects 0.000 title abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 208000006558 Dental Calculus Diseases 0.000 claims description 18
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 18
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 17
- 239000003292 glue Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 8
- 238000011298 ablation treatment Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 238000010317 ablation therapy Methods 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Radiation-Therapy Devices (AREA)
Abstract
The invention relates to a microwave ablation antenna for large hepatic cellular cancer treatment. The microwave ablation antenna for large hepatic cellular cancer treatment comprises a zirconia puncture head, a pole core, a coaxial cable, a water diversion pipe and a needle rod. The zirconia puncture head is provided with an axial center blind hole, the pole core is inserted into the the center blind hole of the zirconia puncture head, the rear end of the pole core is in cold pressing fixed connection with an inner conductor of the coaxial cable, a metal choking ring sleeves the coaxial cable, the front end of the choking ring is mounted on the outer circle on the rear portion of the zirconia puncture head in a sleeving mode, the front end of the needle rod is mounted on the outer circle on the rear portion of the choking ring in a sleeving mode, and the front end of the water diversion pipe is fixed to the rear end of the choke ring. The microwave ablation antenna for large hepatic cellular cancer treatment is ingenious in structure and easy to machine. The choking is specially arranged and is in short circuit with an outer conductor of the thickened coaxial cable for ensuring that the antenna is wide in ablation range and round in ablation. The parameters of the choking ring and the coaxial cable are particularly important, so that the effective heating area (the ablation range) of the antenna can reach 4.5*5.5 cm or larger, and the antenna is suitable for large hepatic cellular cancer interventional ablation treatment.
Description
Technical field
The present invention relates to the microwave ablation antenna being used for the treatment of Large HCC, belong to microwave melt needle technical field.
Background technology
Along with the progress of modern science and technology and oncology, nearly ten years, domestic microwave tumour ablation technology achieves breakthrough anxiety.Microwave tumour ablation utilizes microwave energy affected tissues to produce heat effect, and within the time of several minutes to ten several minutes, its thermal field central temperature can reach more than 100 DEG C, and tumor tissues is solidified under instantaneous high-temperature, deactivation, reaches the object of tumour ablation treating.Microwave tumour ablation art is by the focus of microwave melt needle intervener soma, continues launched microwave energy by its front end, to implement operation, because its efficiency is high, wound is little, and to tissue depth of interaction and range size all controlled, be applicable to the ablative surgery of whole body entity tumor.
The existing antenna that melts is single transmit window construction, can be used for the treatment of the tumors such as hepatocarcinoma.But owing to being subject to the restriction of melting diameter, it cannot adapt to the ablation of Large HCC, and the ablation range that tradition melts antenna is obvious elliposoidal, is unfavorable for that the operation for the treatment of physician controls.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the above-mentioned shortcoming of prior art, provides a kind of microwave ablation antenna being used for the treatment of Large HCC.
In order to solve above technical problem, the microwave ablation antenna being used for the treatment of Large HCC provided by the invention, include: zirconium oxide tartar, pole piece, coaxial cable, aqueduct, shank, described zirconium oxide tartar is provided with axial central blind hole, described pole piece inserts in the central blind hole of zirconium oxide tartar, pole piece rear end is colded pressing affixed with the inner wire of half firm coaxial cable, it is characterized in that: on coaxial cable, cover has the chokes ring of metal material, the front end sleeve of chokes ring is contained on the rear portion half the circumference of the sleeve where it joins the shoulder cylindrical of zirconium oxide tartar, shank front end is then sleeved on the rear portion half the circumference of the sleeve where it joins the shoulder cylindrical of chokes ring, the front end of aqueduct and the rear end of chokes ring are fixed, the external diameter of described chokes ring is 2.2mm, aperture, chokes ring front end is 1.7mm, the degree of depth is 3mm, the distance of front end to the chokes ring front end of coaxial cable outer conductor is 1mm, coaxial cable outer conductor diameter is 1.2mm.
The microwave ablation antenna that the present invention is used for the treatment of Large HCC also has following feature:
1, cold pressing with the inner wire of half firm coaxial cable and rivet in pole piece rear end.
2, pole piece is fixed on by epoxy resin glue bond at the bottom of the hole of zirconium oxide tartar central blind hole.
3, between chokes ring and zirconium oxide tartar, and all by AB glue bond between shank and chokes ring, seal welding between chokes ring and coaxial cable outer conductor.
4, the rear end of aqueduct front end and chokes ring is welded and fixed.
5, the launch window being of a size of 2mm is formed between described pole piece and the outer conductor of coaxial cable.
6, the tail end of described coaxial cable is provided with coaxial radio-frequency connector; Described shank tail end is provided with hands handle; In described handle, there is the intake antrum separated by water proof circle and water chamber; Described intake antrum and water chamber are all provided with and are connected water nozzle fast; Described coaxial radio-frequency connector is also contained in described handle.
7, the gap between described water inlet pipe and coaxial cable forms inlet channel, and the gap between described water inlet pipe and shank forms water outlet, and described inlet channel is communicated with water chamber with described intake antrum respectively with the rear portion of water outlet.
It is ingenious that antenna structure is melted in the present invention, is easy to processing.It is special chokes ring, with the coaxial cable outer conductor short circuit of overstriking, can guarantee the ablation range of antenna more greatly, round.The chokes ring of inventive antenna, the parameter of coaxial cable are even more important, and The present invention gives an optimum scheme, make the territory, effective heating area (ablation range) of this antenna to reach more than 4.5*5.5cm, are suitable for the interventional ablation therapy of Large HCC; And burn the shape that closer to circle, be conducive to the control of operating doctor to operation.In addition, chokes ring also can serve the effect preventing cooling water from entering needle wall.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the microwave ablation antenna front ends phantom that the present invention is used for the treatment of Large HCC.
Fig. 2 is the microwave ablation entire physical structural representation that the present invention is used for the treatment of Large HCC.
Number in the figure is schematically as follows: 1-zirconium oxide tartar, 2-pole piece, 3-coaxial cable, 4-chokes ring, 5-aqueduct, 6-shank, 7-epoxide-resin glue, 8-outer conductor, 9-dielectric layer, 10-water chamber, 11-intake antrum, 12-water nozzle, 13-water proof circle.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
As shown in Figure 1 and Figure 2, the present embodiment microwave ablation antenna, includes: zirconium oxide tartar 1, pole piece 2, coaxial cable 3, aqueduct 5, shank 6, and zirconium oxide tartar 1 is provided with axial central blind hole, pole piece 2 inserts in the central blind hole of zirconium oxide tartar, and is fixed by epoxide-resin glue.Cold pressing with the inner wire of half firm coaxial cable 3 and rivet in pole piece 2 rear end, on coaxial cable 3, cover has the chokes ring 4 of metal material, the front end sleeve of chokes ring 4 is contained on the rear portion half the circumference of the sleeve where it joins the shoulder cylindrical of zirconium oxide tartar 1, shank 6 front end is then sleeved on the rear portion half the circumference of the sleeve where it joins the shoulder cylindrical of chokes ring 4, the front end of aqueduct 5 and the rear end of chokes ring 3 are fixed, the external diameter of chokes ring 3 is 2.2mm, aperture, chokes ring front end is 1.7mm, the degree of depth is 3mm, the distance of front end to the chokes ring front end of coaxial cable outer conductor 8 is 1mm, coaxial cable outer conductor 8 diameter is 1.2mm, the launch window being of a size of 2mm is formed between the outer conductor of pole piece 5 and coaxial cable 3.Between chokes ring 4 and zirconium oxide tartar 1, and all by AB glue bond between shank 6 and chokes ring 4, seal welding between chokes ring 4 and coaxial cable 8 outer conductor.The rear end of aqueduct 5 front end and chokes ring 4 is welded and fixed.As shown in Figure 1,9 is dielectric layer (insulating barrier between coaxial cable outer conductor and inner wire).
The tail end of coaxial cable 3 is provided with coaxial radio-frequency connector; Shank 6 tail end is provided with hands handle; There is in handle the intake antrum 11 and water chamber 10 separated by water proof circle 13; Intake antrum 11 and water chamber 10 are all provided with and are connected water nozzle 12 fast; Coaxial radio-frequency connector is also contained in handle; Gap between water inlet pipe 5 and coaxial cable 3 forms inlet channel, and the gap between water inlet pipe 5 and shank 6 forms water outlet, and inlet channel is communicated with water chamber 10 with described intake antrum 11 respectively with the rear portion of water outlet.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (8)
1. be used for the treatment of the microwave ablation antenna of Large HCC, include: zirconium oxide tartar, pole piece, coaxial cable, aqueduct, shank, described zirconium oxide tartar is provided with axial central blind hole, described pole piece inserts in the central blind hole of zirconium oxide tartar, pole piece rear end is colded pressing affixed with the inner wire of half firm coaxial cable, it is characterized in that: on coaxial cable, cover has the chokes ring of metal material, the front end sleeve of chokes ring is contained on the rear portion half the circumference of the sleeve where it joins the shoulder cylindrical of zirconium oxide tartar, shank front end is then sleeved on the rear portion half the circumference of the sleeve where it joins the shoulder cylindrical of chokes ring, the front end of aqueduct and the rear end of chokes ring are fixed, the external diameter of described chokes ring is 2.2mm, aperture, chokes ring front end is 1.7mm, the degree of depth is 3mm, the distance of front end to the chokes ring front end of coaxial cable outer conductor is 1mm, coaxial cable outer conductor diameter is 1.2mm.
2. the microwave ablation antenna being used for the treatment of Large HCC according to claim 1, is characterized in that: cold pressing with the inner wire of half firm coaxial cable and rivet in pole piece rear end.
3. the microwave ablation antenna being used for the treatment of Large HCC according to claim 1, is characterized in that: pole piece is fixed at the bottom of the hole of zirconium oxide tartar central blind hole by epoxy resin glue bond.
4. the microwave ablation antenna being used for the treatment of Large HCC according to claim 1, is characterized in that: between chokes ring and zirconium oxide tartar, and all by AB glue bond between shank and chokes ring, seal welding between chokes ring and coaxial cable outer conductor.
5. the microwave ablation antenna being used for the treatment of Large HCC according to claim 1, is characterized in that: the rear end of aqueduct front end and chokes ring is welded and fixed.
6. the microwave ablation antenna being used for the treatment of Large HCC according to claim 1, is characterized in that: form the launch window being of a size of 2mm between described pole piece and the outer conductor of coaxial cable.
7. the microwave ablation antenna being used for the treatment of Large HCC according to claim 1, is characterized in that: the tail end of described coaxial cable is provided with coaxial radio-frequency connector; Described shank tail end is provided with hands handle; In described handle, there is the intake antrum separated by water proof circle and water chamber; Described intake antrum and water chamber are all provided with and are connected water nozzle fast; Described coaxial radio-frequency connector is also contained in described handle.
8. the microwave ablation antenna being used for the treatment of Large HCC according to claim 1, it is characterized in that: the gap between described water inlet pipe and coaxial cable forms inlet channel, gap between described water inlet pipe and shank forms water outlet, and described inlet channel is communicated with water chamber with described intake antrum respectively with the rear portion of water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114533.7A CN104688335B (en) | 2015-03-16 | 2015-03-16 | A kind of microwave ablation antenna for being used to treat big liver cancer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114533.7A CN104688335B (en) | 2015-03-16 | 2015-03-16 | A kind of microwave ablation antenna for being used to treat big liver cancer |
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| Publication Number | Publication Date |
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| CN104688335A true CN104688335A (en) | 2015-06-10 |
| CN104688335B CN104688335B (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510114533.7A Active CN104688335B (en) | 2015-03-16 | 2015-03-16 | A kind of microwave ablation antenna for being used to treat big liver cancer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106420047A (en) * | 2016-08-25 | 2017-02-22 | 庞茂英 | Microwave-type tumor ablating needle with temperature control function |
| CN107260301A (en) * | 2017-04-20 | 2017-10-20 | 南通融锋医疗科技有限公司 | Proper circle microwave ablation antenna and system |
| WO2021051542A1 (en) * | 2019-09-16 | 2021-03-25 | 浙江大学 | Multi-slot microwave ablation needle |
| CN115721411A (en) * | 2022-12-09 | 2023-03-03 | 南京亿高医疗科技股份有限公司 | Temperature control device, control method and microwave ablation needle |
| WO2023087662A1 (en) * | 2021-11-18 | 2023-05-25 | 南京亿高微波系统工程有限公司 | Microwave rounding needle with efficient cooling circulation |
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| CN201775679U (en) * | 2010-09-07 | 2011-03-30 | 南京庆海微波电子研究所 | Water-cooled microwave ablation needle for bone tumor therapy |
| CN103892907A (en) * | 2014-04-02 | 2014-07-02 | 南京维京九洲医疗器械研发中心 | Injection type aciculiform microwave antenna for tumor ablation treatment |
| CN104323856A (en) * | 2014-11-11 | 2015-02-04 | 南京维京九洲医疗器械研发中心 | Manufacturing method of non-magnetic water-cooled microwave ablation needle |
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2015
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| CN201775679U (en) * | 2010-09-07 | 2011-03-30 | 南京庆海微波电子研究所 | Water-cooled microwave ablation needle for bone tumor therapy |
| CN103892907A (en) * | 2014-04-02 | 2014-07-02 | 南京维京九洲医疗器械研发中心 | Injection type aciculiform microwave antenna for tumor ablation treatment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106420047A (en) * | 2016-08-25 | 2017-02-22 | 庞茂英 | Microwave-type tumor ablating needle with temperature control function |
| CN107260301A (en) * | 2017-04-20 | 2017-10-20 | 南通融锋医疗科技有限公司 | Proper circle microwave ablation antenna and system |
| WO2018192325A1 (en) * | 2017-04-20 | 2018-10-25 | 南通融锋医疗科技有限公司 | Truly spherical microwave ablation antenna and system |
| JP2019515713A (en) * | 2017-04-20 | 2019-06-13 | 南通融鋒医療科技有限公司Ｍｉｍａ−Ｐｒｏ （Ｎａｎ Ｔｏｎｇ） Ｓｃｉｅｎｔｉｆｉｃ Ｉｎｃ | True circle microwave cautery antenna and system |
| CN107260301B (en) * | 2017-04-20 | 2021-04-02 | 南通融锋医疗科技有限公司 | True circle microwave ablation antenna and system |
| WO2021051542A1 (en) * | 2019-09-16 | 2021-03-25 | 浙江大学 | Multi-slot microwave ablation needle |
| WO2023087662A1 (en) * | 2021-11-18 | 2023-05-25 | 南京亿高微波系统工程有限公司 | Microwave rounding needle with efficient cooling circulation |
| CN115721411A (en) * | 2022-12-09 | 2023-03-03 | 南京亿高医疗科技股份有限公司 | Temperature control device, control method and microwave ablation needle |
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| CN104688335B (en) | 2018-02-23 |
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Effective date of registration: 20160307 Address after: 210003 Gulou District, Jiangsu, Zhongshan North Road, No. 216, building and building, floor, No. five, No. Applicant after: NANJING VISON JIUZHOU MEDICAL EQUIPMENT RESEARCH AND DEVELOPMENT CENTER Address before: Five, Nanjing, Jiangsu, Zhongshan North Road, No. 216, building 210003 days and buildings Applicant before: Zheng Jiasheng |
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