CN204600678U - A kind of needle head structure of double window type microwave melt needle - Google Patents
A kind of needle head structure of double window type microwave melt needle Download PDFInfo
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- CN204600678U CN204600678U CN201520043190.5U CN201520043190U CN204600678U CN 204600678 U CN204600678 U CN 204600678U CN 201520043190 U CN201520043190 U CN 201520043190U CN 204600678 U CN204600678 U CN 204600678U
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- coaxial cable
- outer conductor
- zirconium oxide
- head structure
- needle
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Abstract
This utility model relates to a kind of needle head structure of double window type microwave melt needle, include: zirconium oxide tartar and coaxial cable, front portion the cutting away two sections and exposing dielectric layer by interval of coaxial cable outer conductor, form two launch windows, the front end of coaxial cable by soldering by outer conductor and inner wire short circuit, between soldering and zirconium oxide tartar central blind hole, and be filled with epoxide-resin glue between the dielectric layer at launch window place and zirconium oxide tartar central blind hole and realize fixing.This microwave ablation antenna needle head structure offers double-window structure, is applicable to the dielectric coefficient of lung tissue, mates lung tissue completely; It melts diameter can reach more than 5cm, and for pulmonary carcinoma, particularly melting of large pulmonary carcinoma is a favourable weapon.
Description
Technical field
This utility model relates to the microwave ablation antenna being applicable to tumor intervention therapeutic, particularly has the microwave ablation antenna needle head structure of double window interface, belongs 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.
Existing microwave ablation antenna is single transmit window construction, is applicable to the treatment of the tumors such as hepatocarcinoma.But because boundary's electrostrictive coefficient of cancerous lung tissue and liver, other organs are different, existingly melt the treatment that antenna cannot be applicable to pulmonary carcinoma.And the gross tumor volume of pulmonary carcinoma is large, therefore requires that antenna has and larger melt diameter, this is also that tradition melts antenna and cannot accomplish.And be not also applicable at present operation of lung cancer on the market melt antenna.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the above-mentioned shortcoming of prior art, provides a kind of needle head structure being applicable to the double window type microwave melt needle of interventional therapy of lung cancer.
In order to solve above technical problem, the needle head structure of the double window type microwave melt needle that this utility model provides, comprise: zirconium oxide tartar and coaxial cable, described zirconium oxide tartar is provided with axial central blind hole, described coaxial cable inserts in this central blind hole, it is characterized in that: the front portion of described coaxial cable offers two launch windows, the front end of coaxial cable by soldering by outer conductor and inner wire short circuit, the width range of two launch windows is 0.9mm-1.1mm, outer conductor length range between two launch windows is 4.1-4.3mm, the tail end of first segment outer conductor is 2.0-2.2mm to the distance range of described soldering front end, between described soldering and zirconium oxide tartar central blind hole, and be filled with epoxide-resin glue between the dielectric layer at launch window place and zirconium oxide tartar central blind hole and realize fixing.
The needle head structure of this utility model double window type microwave melt needle also has following feature:
1, front portion the cutting away two sections and exposing dielectric layer by interval of described coaxial cable outer conductor, two launch windows described in formation.
2, 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.
3, preferred, the diameter of zirconium oxide tartar and shank is 1.5mm, and the diameter range of coaxial cable outer conductor is 0.8mm.
4, as preferably, the width of two launch windows is 1mm, and the outer conductor length between two launch windows is 4.2mm, and the tail end of first segment outer conductor is 2.1mm to the distance of described soldering front end.
5, described soldering is hemispherical.
This utility model melts the dielectric coefficient that antenna needle head structure is applicable to lung tissue, mates lung tissue completely, and for pulmonary carcinoma, particularly melting of large pulmonary carcinoma is a favourable weapon.This syringe needle is comparatively thin, and wound is little, except accommodating except operation of lung cancer, also can be used for the ablative surgery of other tumors.
Originally the syringe needle melting antenna is provided with double-window structure, and microwave is outwards launched from two windows, adds and melts size, is suitable for the interventional ablation therapy of lung cancer tumor.The position of emitter window and parameter, and the parameter of syringe needle and coaxial cable is important, and this utility model gives an optimum scheme, the territory, effective heating area (ablation range) of the antenna with this needle head structure is made to reach more than 5cm, and it is comparatively close circular to burn the shape, and is conducive to the control of operating doctor to operation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, this utility model is further described.
Fig. 1 is the ablation needle fore-end sectional view with double-window structure.
Under number in the figure schematic diagram:
Number in the figure is schematically as follows: 1-zirconium oxide tartar, the spherical scolding tin of 2-, 3-coaxial cable, 4-water blockoff axle, 5-aqueduct, 6-shank, 7-epoxide-resin glue, 8-outer conductor, 9-dielectric layer, 15-sealing ring.
Detailed description of the invention
For making the object of this utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described.
As shown in Figure 1, antenna front ends phantom is melted for what be equipped with this utility model needle head structure, mainly include: zirconium oxide tartar 1, coaxial cable 3, water blockoff axle 4, aqueduct 5, shank 6, zirconium oxide tartar 1 is provided with axial central blind hole, and coaxial cable 3 inserts in this central blind hole.Front portion the cutting away two sections and exposing dielectric layer by interval of this coaxial cable outer conductor 8, form two launch windows, the front end of coaxial cable by spherical soldering 2 by outer conductor 8 with inner wire (in the inside of dielectric layer 9, not shown in FIG.) short circuit, the width of two launch windows is 1mm, outer conductor length between two launch windows is 4.2mm, the tail end of first segment outer conductor is 2.1mm to the distance of spherical soldering front end, between spherical soldering 2 and zirconium oxide tartar 1 central blind hole, and be filled with epoxide-resin glue 7 between the dielectric layer 9 at launch window place and zirconium oxide tartar central blind hole, realize the fixing of coaxial cable and zirconium oxide tartar.Water blockoff axle 4 is enclosed within coaxial cable 3, and its head props up zirconium oxide tartar 1 rear end face, and afterbody and coaxial cable 3 outer conductor 8 seal welding, the front end sleeve of aqueduct 5 on water blockoff axle 4 cylindrical, and is welded and fixed with water blockoff axle 4.Zirconium oxide tartar 1 cylindrical has cannelure, cannelure has been embedded in sealing ring 15, shank 6 front end sleeve is contained on the cylindrical of zirconium oxide tartar 1, and it is fixing to use epoxide-resin glue shank 6 and zirconium oxide tartar 1, water blockoff axle 4 to be carried out bonding, make sealing ring by cannelure and shank spacing; Radio frequency (RF) coaxial connector welds with the afterbody of coaxial cable 3.As shown in the figure, water inlet pipe front portion is inclined-plane, and set out water hole at back, water blockoff axle 4 is two-part, and the internal orifice dimension of two sections is identical, and adapts with coaxial cable 3 outer conductor 8, external diameter and shank 6 internal diameter of front section adapt, the external diameter of rear end part is less than shank 6 internal diameter, and form half the circumference of the sleeve where it joins the shoulder cylindrical, front end and the water blockoff axle 4 half the circumference of the sleeve where it joins the shoulder cylindrical on water inlet pipe inclined-plane are welded and fixed.The external diameter of the afterbody cylindrical of zirconium oxide tartar 1 is equal with the external diameter of water blockoff axle 4 front section.
In addition to the implementation, this utility model 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 this utility model requirement.
Claims (6)
1. the needle head structure of a double window type microwave melt needle, comprise: zirconium oxide tartar and coaxial cable, described zirconium oxide tartar is provided with axial central blind hole, described coaxial cable inserts in this central blind hole, it is characterized in that: the front portion of described coaxial cable offers two launch windows, the front end of coaxial cable by soldering by outer conductor and inner wire short circuit, the width range of two launch windows is 0.9mm-1.1mm, outer conductor length range between two launch windows is 4.1-4.3mm, the tail end of first segment outer conductor is 2.0-2.2mm to the distance range of described soldering front end, between described soldering and zirconium oxide tartar central blind hole, and be filled with epoxide-resin glue between the dielectric layer at launch window place and zirconium oxide tartar central blind hole and realize fixing.
2. the needle head structure of double window type microwave melt needle according to claim 1, is characterized in that: front portion the cutting away two sections and exposing dielectric layer by interval of described coaxial cable outer conductor, two launch windows described in formation.
3. the needle head structure of double window type microwave melt needle according to claim 1, is characterized in that: 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.
4. the needle head structure of double window type microwave melt needle according to claim 1, is characterized in that: the diameter of zirconium oxide tartar and shank is 1.5mm, and the diameter range of coaxial cable outer conductor is 0.8mm.
5. the needle head structure of double window type microwave melt needle according to claim 1, it is characterized in that: the width of two launch windows is 1mm, outer conductor length between two launch windows is 4.2mm, and the tail end of first segment outer conductor is 2.1mm to the distance of described soldering front end.
6. the needle head structure of double window type microwave melt needle according to claim 1, is characterized in that: described soldering is hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520043190.5U CN204600678U (en) | 2015-01-21 | 2015-01-21 | A kind of needle head structure of double window type microwave melt needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520043190.5U CN204600678U (en) | 2015-01-21 | 2015-01-21 | A kind of needle head structure of double window type microwave melt needle |
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| CN204600678U true CN204600678U (en) | 2015-09-02 |
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| CN201520043190.5U Active CN204600678U (en) | 2015-01-21 | 2015-01-21 | A kind of needle head structure of double window type microwave melt needle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107753104A (en) * | 2017-12-01 | 2018-03-06 | 中国科学技术大学 | Compatible water-cooled microwave ablation needle of a kind of magnetic and preparation method thereof |
| CN107865691A (en) * | 2017-11-22 | 2018-04-03 | 安徽硕金医疗设备有限公司 | A kind of water-cooled microwave ablation needle of magnetic resonance compatible |
| CN110507414A (en) * | 2019-09-16 | 2019-11-29 | 浙江大学 | A kind of more gap microwave melt needles |
-
2015
- 2015-01-21 CN CN201520043190.5U patent/CN204600678U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107865691A (en) * | 2017-11-22 | 2018-04-03 | 安徽硕金医疗设备有限公司 | A kind of water-cooled microwave ablation needle of magnetic resonance compatible |
| CN107753104A (en) * | 2017-12-01 | 2018-03-06 | 中国科学技术大学 | Compatible water-cooled microwave ablation needle of a kind of magnetic and preparation method thereof |
| CN110507414A (en) * | 2019-09-16 | 2019-11-29 | 浙江大学 | A kind of more gap microwave melt needles |
| WO2021051542A1 (en) * | 2019-09-16 | 2021-03-25 | 浙江大学 | Multi-slot microwave ablation needle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |