CN104546126B - A kind of microwave ablation antenna suitable for interventional therapy of lung cancer - Google Patents

A kind of microwave ablation antenna suitable for interventional therapy of lung cancer Download PDF

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Publication number
CN104546126B
CN104546126B CN201510029916.4A CN201510029916A CN104546126B CN 104546126 B CN104546126 B CN 104546126B CN 201510029916 A CN201510029916 A CN 201510029916A CN 104546126 B CN104546126 B CN 104546126B
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CN
China
Prior art keywords
zirconium oxide
lung cancer
outer conductor
coaxial cable
ablation antenna
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CN201510029916.4A
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Chinese (zh)
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CN104546126A (en
Inventor
范卫君
张鹏
杨婷
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南京维京九洲医疗器械研发中心
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Publication of CN104546126A publication Critical patent/CN104546126A/en
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Abstract

The present invention relates to a kind of microwave ablation antenna suitable for interventional therapy of lung cancer, include:Zirconium oxide tartar, coaxial cable, water blockoff axle, aqueduct, shank, what the front portion of coaxial cable outer conductor was spaced cuts away two sections and exposes dielectric layer, form two launch windows, the front end of coaxial cable is short-circuit by outer conductor and inner wire by soldering, between soldering and zirconium oxide tartar's central blind hole, and realize and fix filled with epoxide-resin glue between dielectric layer and zirconium oxide tartar's central blind hole at launch window.This ablation antenna head offers double-window structure, is adapted to the dielectric coefficient of lung tissue, lung tissue is matched completely;It melts diameter and can reach more than 5cm, and for lung cancer, the ablation of particularly big lung cancer is a favourable weapon.

Description

A kind of microwave ablation antenna suitable for interventional therapy of lung cancer

Technical field

The present invention relates to the microwave ablation antenna suitable for interventional therapy of lung cancer, belong to microwave melt needle technical field.

Background technology

With the progress of modern science and technology and oncology, nearly ten years, domestic microwave tumour ablation technology achieves breakthrough Anxiety.Microwave tumour ablation is can to produce fuel factor using microwave energy affected tissues, several minutes to ten several minutes when In, its thermal field central temperature is up to more than 100 DEG C, and tumor tissues are solidified under instantaneous high-temperature, inactivated, and reach tumour ablation The purpose for the treatment of.Microwave tumour ablation art is that microwave melt needle is intervened to the focus of tissue, persistently launches micro- by its front end Wave energy, to implement operation, because of its efficiency high, wound is small, and controllable to the depth of interaction and range size of tissue, it is adaptable to The ablative surgery of whole body entity tumor.

Existing ablation antenna is single-shot and penetrates window construction, it is adaptable to the treatment of the tumour such as liver cancer.But due to cancerous lung tissue Boundary's electrostrictive coefficient and liver, other organs it is different, it is existing ablation antenna can not be applied to lung cancer treatment.And lung cancer is swollen Knurl volume is big, therefore it is required that antenna has larger ablation diameter, this is also that tradition ablation antenna can not be accomplished.And current city It is not applied to the ablation antenna of operation of lung cancer on face also.

The content of the invention

The technical problems to be solved by the invention are that the disadvantages mentioned above for overcoming prior art is applied to lung cancer there is provided one kind The microwave ablation antenna of PCI.

In order to solve the above technical problems, the microwave ablation antenna suitable for interventional therapy of lung cancer that the present invention is provided, bag Include:Zirconium oxide tartar, coaxial cable, water blockoff axle, aqueduct, shank, it is blind that the zirconium oxide tartar is provided with axial center Hole, the coaxial cable is inserted in the central blind hole, it is characterised in that:What the front portion of the coaxial cable outer conductor was spaced cuts Slice off two sections and expose dielectric layer, form two launch windows, the front end of coaxial cable is by soldering by outer conductor and inner wire Short circuit, the width range of described two launch windows is the outer conductor length range between 0.9mm-1.1mm, two launch windows For 4.1-4.3mm, tail end to the distance range of the soldering front end of first segment outer conductor is 2.0-2.2mm, the soldering with Ring is filled between zirconium oxide tartar's central blind hole, and between dielectric layer and zirconium oxide tartar's central blind hole at launch window Oxygen resin glue, which is realized, to be fixed.

The present invention also has following feature suitable for the microwave ablation antenna of interventional therapy of lung cancer:

1st, the soldering is hemispherical.

2nd, the diameter range of zirconium oxide tartar and shank is 1.3-1.7mm, and the diameter range of coaxial cable outer conductor is 0.7-0.9mm。

3rd, preferably, a diameter of 1.5mm of zirconium oxide tartar and shank, the diameter range of coaxial cable outer conductor is 0.8mm。

4th, preferably, the width of two launch windows is 1mm, the outer conductor length between two launch windows is 4.2mm, tail end to the distance of the soldering front end of first segment outer conductor is 2.1mm.

Present invention ablation antenna is adapted to the dielectric coefficient of lung tissue, and lung tissue is matched completely, particularly big for lung cancer The ablation of lung cancer is a favourable weapon.And present invention ablation antenna carries water-cooling system, in the case where increasing power, Also the safe and reliable of shank and syringe needle can be kept.Present invention ablation antenna shank is thinner, and wound is small, except accommodating in operation of lung cancer In addition, it may also be used for the ablative surgery of other tumours.

This ablation antenna head offers double-window structure, and microwave is outwards launched from two windows, adds ablation size, fits Together in the interventional ablation therapy of lung cancer tumor.The position of emitter window of the present invention and parameter, and shank and coaxial cable parameter To be important, and The present invention gives an optimal scheme so that the effective heating area domain of this antenna(Ablation range)Can More than 5cm is reached, and the shape burnt is closer to circle, is conducive to control of the operating doctor to operation.

Brief description of the drawings

The present invention is further illustrated below in conjunction with the accompanying drawings.

Fig. 1 is the microwave ablation antenna front ends phantom that the present invention is applied to interventional therapy of lung cancer.

Fig. 2 is the microwave ablation antenna overall structure diagram that the present invention is applied to interventional therapy of lung cancer.

Label is schematically as follows in figure:1- zirconium oxide tartars, the spherical scolding tin of 2-, 3- coaxial cables, 4- water blockoff axles, 5- diversions Pipe, 6- shanks, 7- epoxide-resin glues, 8- outer conductors, 9- dielectric layers, 10- water chambers, 11- intake antrums, 12- water nozzles, 13- water proofs Circle, 14- fixed covers, 15- sealing rings.

Embodiment

As shown in Figure 1, 2, it is microwave ablation antenna of the embodiment of the present invention suitable for interventional therapy of lung cancer, mainly includes Have:Zirconium oxide tartar 1, coaxial cable 3, water blockoff axle 4, aqueduct 5, shank 6, it is blind that zirconium oxide tartar 1 is provided with axial center Hole, coaxial cable 3 is inserted in the central blind hole.What the front portion of the coaxial cable outer conductor 8 was spaced opens up two launch windows, The front end of coaxial cable is by spherical soldering 2 by outer conductor 8 and inner wire(It is not drawn into the inside of dielectric layer 9, figure)Short circuit, The width of two launch windows is that the outer conductor length between 1mm, two launch windows is 4.2mm, the tail of first segment outer conductor The distance held to spherical soldering front end is 2.1mm.Realized admittedly filled with epoxide-resin glue 7 between coaxial cable and zirconium oxide tartar It is fixed.Water blockoff axle 4 is enclosed within coaxial cable 3, and its head props up the rear end face of zirconium oxide tartar 1, afterbody and the outer conductor 8 of coaxial cable 3 Sealing welding, the front end sleeve of aqueduct 5 is welded and fixed on water blockoff axle 4 is cylindrical, and with water blockoff axle 4.In figure, 10 be water chamber, 11 be intake antrum, and 12 be water nozzle, and 13 be water proof circle, and 14 be fixed cover, and 15 be sealing ring.

In addition to the implementation, the present invention can also have other embodiment.All use equivalent or equivalent transformation shape Into technical scheme, all fall within the protection domain of application claims.

Claims (5)

1. suitable for the microwave ablation antenna of interventional therapy of lung cancer, include:Zirconium oxide tartar, coaxial cable, water blockoff axle, diversion Pipe, shank, the zirconium oxide tartar are provided with axial central blind hole, and the coaxial cable is inserted in the central blind hole, and it is special Levy and be:What the front portion of the coaxial cable outer conductor was spaced cuts away two sections and exposes dielectric layer, forms two emitter windows Mouthful, the front end of coaxial cable is by soldering by outer conductor and inner wire short circuit, and the width range of described two launch windows is Outer conductor length range between 0.9mm-1.1mm, two launch windows is 4.1-4.3mm, and the tail end of first segment outer conductor is extremely The distance range of the soldering front end is 2.0-2.2mm, between the soldering and zirconium oxide tartar's central blind hole, and emitter window Realize and fix filled with epoxide-resin glue between dielectric layer and zirconium oxide tartar's central blind hole at mouthful.
2. the microwave ablation antenna according to claim 1 suitable for interventional therapy of lung cancer, it is characterised in that:Two transmittings The width of window is 1mm, and the outer conductor length between two emitter windows is 4.2mm, the tail end of first segment outer conductor to the tin The distance for welding front end is 2.1mm.
3. the microwave ablation antenna according to claim 1 suitable for interventional therapy of lung cancer, it is characterised in that:Zirconium oxide is pierced Cylindrical have an annular groove, and annular groove has been embedded in sealing ring, and the sealing ring is by the annular groove and is sleeved on zirconium oxide and pierces Shank on cylindrical is spacing.
4. the microwave ablation antenna according to claim 1 suitable for interventional therapy of lung cancer, it is characterised in that:Zirconium oxide is pierced Head is 1.3-1.7mm with the diameter range of shank, and the diameter range of coaxial cable outer conductor is 0.7-0.9mm.
5. according to the microwave ablation antenna suitable for interventional therapy of lung cancer described in claim 1, it is characterised in that:Zirconium oxide tartar With a diameter of 1.5mm of shank, the diameter range of coaxial cable outer conductor is 0.8mm.
CN201510029916.4A 2015-01-21 2015-01-21 A kind of microwave ablation antenna suitable for interventional therapy of lung cancer CN104546126B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510029916.4A CN104546126B (en) 2015-01-21 2015-01-21 A kind of microwave ablation antenna suitable for interventional therapy of lung cancer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510029916.4A CN104546126B (en) 2015-01-21 2015-01-21 A kind of microwave ablation antenna suitable for interventional therapy of lung cancer

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CN104546126B true CN104546126B (en) 2017-07-18

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003901390A0 (en) * 2003-03-26 2003-04-10 University Of Technology, Sydney Microwave antenna for cardiac ablation
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
CN202386782U (en) * 2011-12-13 2012-08-22 南京理工大学 Microwave thermal therapy antenna with coaxial aperture corrugated coil
US9095360B2 (en) * 2012-04-06 2015-08-04 Wisconsin Alumni Research Foundation Feeding structure for dual slot microwave ablation probe
CN202554105U (en) * 2012-05-29 2012-11-28 孙建新 Small diameter water-cooled microwave ablation needle
CN103202728A (en) * 2013-01-17 2013-07-17 南京航空航天大学 Single microwave treatment needle with multiple acting sites
CN203555830U (en) * 2013-11-11 2014-04-23 杨兴瑞 Semi-rigid water-cooling microwave ablation antenna with integration of real-time temperature measurement and ablation

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