CN104027168A - Microwave ablation needle antenna with infusion structure for curing cyst - Google Patents

Microwave ablation needle antenna with infusion structure for curing cyst Download PDF

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Publication number
CN104027168A
CN104027168A CN201410277945.8A CN201410277945A CN104027168A CN 104027168 A CN104027168 A CN 104027168A CN 201410277945 A CN201410277945 A CN 201410277945A CN 104027168 A CN104027168 A CN 104027168A
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antenna
rod
cyst
antenna body
microwave
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CN201410277945.8A
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章建全
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Abstract

The invention discloses a microwave ablation needle antenna with an infusion structure for curing cyst and belongs to microwave ablation antennas. The microwave ablation needle antenna comprises an antenna rod body and a handle. The antenna rod body is connected with the handle. A radiator is arranged at the front head of an inner portion of the antenna rod body. A needle radiator sleeve is arranged on the radiator and further arranged at the end of the antenna rod body. The radiator is connected with a radio frequency coaxial connector which is arranged at the tail end of the antenna rod body through a coaxial cable. A water inlet channel and a water outlet channel are further arranged in the antenna rod body and communicated with each other. An independent injection channel is arranged in the antenna rod body. At least one through hole is formed in the front end of the antenna rod body. The injection channel is communicated with the outside through the through hole. Through the injection channel in the antenna rod body, artificial irrigation fluid is injected to do auxiliary cleaning during the microwave ablation of the cyst by the needle antenna, and cyst fluid generated from the microwave ablation is sucked. Thus technical effect identical with that of sclerosis therapy is achieved during the microwave ablation.

Description

There is the cyst Microwave Coagulation Therapy aciculiform antenna of drawing liquid structure
 
Technical field
The present invention relates to a kind of microwave ablation antenna, in particular, the present invention relates generally to a kind of cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure.
 
Background technology
Although microwave heat energy only has more than the ten of short duration years for clinical therapy of tumor, is but a dark horse, and develops rapidly and becomes Wicresoft's efficient means of extremely attracting attention in combined therapy of tumour scheme, be described as one of main representative art of the green treatment of tumor.When propagating in tissue, the microwave of medical energy level can produce heat effect and Dehydration fast and efficiently, in several minutes, just can in body tissue, form central temperature and be greater than the spherical thermal field of class that 100 DEG C, edge are greater than 60 DEG C, tumor cell in thermal field by rapid solidification deactivation, and keeps stable aftereffect therapeutic effect under high temperature and dehydration.By computer control technology, microwave ablation has been realized energy output quantification, energy is ended timelyization, system start-up is with to stop reliability high, in conjunction with the real-time monitoring of the modern image techniques technology such as ultrasonic, CT, realized Wicresoft, accurately, sphere of action and a series of clinical treatment advantages that degree is controlled, repeatability is strong.More and more be subject to doctors' high praise, application also constantly scientifically expands and extend, from malignant tumor to benign tumor, from deep tumor to superficial tumor, treatment from neoplastic disease to non-neoplastic disease all shows the application prospect of sustainable expansion, is expected to become the first-selected thermal ablation techniques under image-guided.Comprehensive domestic and international existing water-cooled microwave ablation needle shape antenna, is all that to treat entity tumor be research original intention, in aciculiform and textural all to meet puncture entity tumor as standard, does not meet tissue characteristics and the treatment requirement of cyst class disease.
And cyst is very good, the multiple occupying lesion taking sealing cyst wall parcel certain capacity liquid as architectural feature in human body, can betide various organ or tissues, there is comparatively general treatment requirement.Universal current gradually in image-guided lower minimally-invasive treatment technology, tapping associating sclerosing agent injects Therapeutic Method that blister cavities carries out the sclerosis of cyst wall cell and has replaced gradually surgical operation previously and go top therapy.But the impact of experience, knowledge and patient's cyst speciality that the effect of sclerotherapy is subject to operating doctor is larger, Stability is under suspicion.If microwave ablation technology is applied in Cystis therapeutic, certainly can continue to keep the advantage of minimally-invasive treatment, promote the efficiency of therapeutic process, be also expected to improve the stability of therapeutic effect, and avoid the deficient scarce clinical difficult problem of cystosclerosis agent.For this reason, design and development have necessity and clinical value taking cyst class disease as the microwave ablation aciculiform antenna of specially controlling target.
 
Summary of the invention
One of object of the present invention is for above-mentioned deficiency, and a kind of cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure is provided, and is not suitable for the pathology of cyst the technical problem such as to treat to expect to solve the aciculiform antenna that melts of the prior art.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure provided by the present invention, comprise the antenna body of rod and handle, the described antenna body of rod is connected with handle, the front end of described antenna body of rod inside is provided with irradiator, and the aciculiform radiator cover that is placed in mast end of body is installed on described irradiator; Described irradiator is connected with the radio frequency (RF) coaxial connector on antenna body of rod end by coaxial cable, for accessing microwave source by radio frequency (RF) coaxial connector, the microwave that microwave source produces transfers to irradiator through radio frequency (RF) coaxial connector and coaxial cable successively, and then produces radiation; The inside of the described antenna body of rod is also provided with the inlet channel and the water outlet that are interconnected, for carrying out cooling at radiation generating process to irradiator and the antenna body of rod; The inside of the described antenna body of rod is also provided with independently reservoir channel, and the front end of the described antenna body of rod is provided with at least one through hole, and described reservoir channel is connected with outside by through hole.
As preferably, further technical scheme is: described radio frequency (RF) coaxial connector is connected with microwave source, for exporting microwave by microwave source to the irradiator of shank front end.
Further technical scheme is: the described antenna body of rod is also provided with strategic point stream ring on inner corresponding with through hole position, for preventing the liquid inflow water outlet of reservoir channel.
Further technical scheme is: described inlet channel, water outlet, reservoir channel are also connected with intake antrum, water chamber, fluid injection chamber respectively; Described intake antrum, water chamber and fluid injection chamber are all arranged on the inside of handle, and described fluid injection chamber, intake antrum are connected with outlet pipe with liquid injection pipe, water inlet pipe respectively with water chamber.
Further technical scheme is: the maximum outside diameter of the described antenna body of rod is 1.8 to 3 millimeters.
Further technical scheme is: the inside of the described antenna body of rod is also provided with into water sleeve pipe, described water inlet casing pipe sleeve is contained in the outside of coaxial cable, the outside of described water inlet sleeve pipe is also set with fluid injection sleeve pipe, gap between described water inlet sleeve pipe and coaxial cable forms inlet channel, gap between described water inlet sleeve pipe and fluid injection sleeve pipe forms water channel, and the gap between described fluid injection sleeve pipe and the inwall of the antenna body of rod forms reservoir channel.
Further technical scheme is: the cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure according to claim 1, is characterized in that: the front end of described aciculiform radiator cover is dome shape.
Further technical scheme is: described radio frequency (RF) coaxial connector is arranged on the lower end of handle.
Compared with prior art, one of beneficial effect of the present invention is: by the reservoir channel of antenna body of rod inside, make aciculiform antenna cyst being carried out in the process of Microwave Coagulation Therapy, can inject the auxiliary cleaning of artificial flushing liquid, also can aspirate the cystic fluid that microwave ablation produces by reservoir channel, in Microwave Coagulation Therapy, play the technique effect identical with sclerotherapy, and the needle point structure of sphere also can reduce and when needle point is attached at cyst wall, stings the bleeding that impairing the liver, kidney, ovary essence cause; The inlet channel of antenna body of rod inside and water outlet can reduce by recirculated water the temperature of irradiator and shank in microwave ablation process; Simultaneously a kind of cyst Microwave Coagulation Therapy aciculiform antenna structure with drawing liquid structure provided by the present invention is simple, is suitable for suitability for industrialized production, is easy to promote.
 
Brief description of the drawings
Fig. 1 is the structural representation for one embodiment of the invention is described;
Fig. 2 is the A place enlarged drawing of Fig. 1;
In figure, 1 be the antenna body of rod, 2 for handle, 3 for irradiator, 4 for aciculiform radiator cover, 5 for coaxial cable, 6 for radio frequency (RF) coaxial connector, 7 for through hole, 8 for strategic point stream ring, 9 for intake antrum, 10 for water chamber, 11 for fluid injection chamber, 12 for liquid injection pipe, 13 for water inlet pipe, 14 for outlet pipe, 15 for water inlet sleeve pipe, 16 be fluid injection sleeve pipe.
 
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further elaborated.
Shown in figure 1, Fig. 2, one embodiment of the present of invention are a kind of cyst Microwave Coagulation Therapy aciculiform antennas with drawing liquid structure, comprise the antenna body of rod 1 and handle 2, the described antenna body of rod 1 is connected with handle 2, its feature is provided with irradiator 3 at the front end of the described antenna body of rod 1 inside, and the aciculiform radiator cover 4 that is placed in the antenna body of rod 1 end is installed on described irradiator 3; Described irradiator 3 is connected with the radio frequency (RF) coaxial connector 6 on the antenna body of rod 1 end by coaxial cable 5, for accessing microwave source by radio frequency (RF) coaxial connector 6, the microwave that microwave source produces transfers to irradiator 3 through radio frequency (RF) coaxial connector 6 and coaxial cable 5 successively, and then produces radiation; The inside of the aforementioned antenna body of rod 1 is also provided with the inlet channel and the water outlet that are interconnected, for carrying out cooling at radiation generating process to irradiator 3 and the antenna body of rod 1; Inside at the antenna body of rod 1 is also provided with independently reservoir channel, and the front end of the described antenna body of rod 1 is provided with at least one through hole 7, and described reservoir channel is connected with outside by through hole 7.
In the present embodiment, by the reservoir channel of the antenna body of rod 1 inside, make aciculiform antenna cyst being carried out in the process of Microwave Coagulation Therapy, can inject the auxiliary cleaning of artificial flushing liquid, also can aspirate the cystic fluid that microwave ablation produces by reservoir channel, in Microwave Coagulation Therapy, play the technique effect identical with sclerotherapy, simultaneously the inlet channel of antenna body of rod inside and water outlet can reduce by recirculated water the temperature of irradiator and shank in microwave ablation process.
Just as described above, the preferred structure in another embodiment of the present invention is directly above-mentioned radio frequency (RF) coaxial connector 6 to be connected with microwave source, for exporting microwave by microwave source to the irradiator 3 of shank front end.
Again as shown in Figure 2, an embodiment who is more preferably for technical solution problem in the present invention, invention is artificial to be reduced and when needle point is attached at cyst wall, stings the bleeding that impairing the liver, kidney, ovary essence cause, the front end of above-mentioned aciculiform radiator cover 4 is set to dome shape.
Further, for cystic fluid or the artificial flushing liquid avoiding circulating in reservoir channel are sneaked in the recirculated cooling water in water outlet and inlet channel, also can on inner corresponding with through hole 7 position of the above-mentioned antenna body of rod 1, set up strategic point stream ring 8, flow into water outlet for the liquid that prevents reservoir channel, and the injection and the suction that coordinate through hole 7 to enter liquid.
Shown in Fig. 1, an embodiment who is more preferably for technical solution problem in the present invention, for ensureing the pressure of above-mentioned recirculated cooling water and pumping liquid, preferably above-mentioned inlet channel, water outlet, reservoir channel are divided other to be connected with intake antrum 9, water chamber 10, fluid injection chamber 11; Intake antrum 9, water chamber 10 and fluid injection chamber 11 all can be arranged on to the inside of handle 2, with easy to use simultaneously.
And in order conveniently to make each cavity turnover liquid, also above-mentioned fluid injection chamber 11, intake antrum 9 can be connected with outlet pipe 14 with liquid injection pipe 12, water inlet pipe 13 respectively with water chamber 10.
In the above embodiments, mention in the antenna body of rod 1 and be provided with inlet channel, water outlet and reservoir channel, inventor considers the environment that the antenna body of rod 1 is inner narrow, aforesaid three fluid passages are optimized to setting, be specially in the inside of the antenna body of rod 1 and be installed into jacket pipe 15, water inlet sleeve pipe 15 is sleeved on to the outside of coaxial cable 5, again at the outside of water inlet sleeve pipe 15 suit fluid injection sleeve pipe 16, thereby make to form inlet channel into the gap between water sleeve pipe 15 and coaxial cable 5, gap between water inlet sleeve pipe 15 and fluid injection sleeve pipe 16 forms water channel, gap between the inwall of fluid injection sleeve pipe 16 and the antenna body of rod 1 forms reservoir channel.
In addition, consider the pathological characters of cyst, the maximum outside diameter of the above-mentioned antenna body of rod 1 is 1.8 to 3 millimeters, for example 2.1 millimeters.Radio frequency (RF) coaxial connector 6 is preferably arranged on the lower end of handle 2.
In addition, inventor consider drawing liquid body structure need effective volume much larger, and when suction, can only use rough vacuum, therefore in the structure choice of reservoir channel 1, need to utilize the space of the chuck forming between the outer tube of outer tube and inner ablation needle to realize.Reservoir channel can be realized large flow water cooling (being greater than 30ml/s); Interlayer between thin-walled outer sleeve inner wall and liquid injection pipe is the suction of capsule liquid and artificial reservoir channel, and thin-walled trocar sheath front end is provided with aperture, and liquid can be pumped out by aperture.
The present invention is that brand-new a kind of front end has approximately 2.1 millimeters of liquid infusion through hole 7, diameter 14G(), high efficiency (standing-wave ratio is less than 1.5), high tolerance power (the most advanced and sophisticated irradiator 80W of place) water cooling microwave ablation aciculiform antenna.Antenna leading portion is high-strength ceramic composite materials manufacture, and rigidity is strong, and penetrating ability is stronger, and front end needle point is dome shape, and both favourable puncture broke through, the also pair of favourable minimizing needle point damage.
In the above-described embodiment, the antenna body of rod 1 can adopt thin-walled overcoat 304 stainless steel tubes, water inlet sleeve pipe 15 can adopt the cooling water inlet pipe of thin-walled 304 rustless steel with fluid injection sleeve pipe 16, coaxial cable 4 can adopt the coaxial cable of ultrafine diameter (for example diameter is the cable of 3 to 8 millimeters), the aciculiform radiator cover 15 of above-mentioned shank 2 front ends forms for the super sharp ceramic composite processing and manufacturing of cone high strength, to improve the transmitting power of tolerance microwave source.
Except above-mentioned, also it should be noted that " embodiment ", " another embodiment ", " embodiment " etc. that spoken of in this manual, refer in conjunction with specific features, structure or the feature of this embodiment description and be included at least one embodiment of the application's generality description.In description, multiple local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while describing a specific features, structure or feature in conjunction with arbitrary embodiment, what advocate is to realize this feature, structure or feature in conjunction with other embodiment also to fall within the scope of the invention.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiments, within these amendments and embodiment will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.

Claims (8)

1. one kind has the cyst Microwave Coagulation Therapy aciculiform antenna of drawing liquid structure, comprise the antenna body of rod (1) and handle (2), the described antenna body of rod (1) is connected with handle (2), it is characterized in that: the inner front end of the described antenna body of rod (1) is provided with irradiator (3), and the aciculiform radiator cover (4) that is placed in the antenna body of rod (1) end is installed on described irradiator (3); Described irradiator (3) is connected with the radio frequency (RF) coaxial connector (6) on the antenna body of rod (1) end by coaxial cable (5), for accessing microwave source by radio frequency (RF) coaxial connector (6), the microwave that microwave source produces passes through successively radio frequency (RF) coaxial connector (6) and transfers to irradiator (3) with coaxial cable (5), and then produces radiation;
The inside of the described antenna body of rod (1) is also provided with the inlet channel and the water outlet that are interconnected, for carrying out cooling at radiation generating process to irradiator (3) and the antenna body of rod (1);
The inside of the described antenna body of rod (1) is also provided with independently reservoir channel, and the front end of the described antenna body of rod (1) is provided with at least one through hole (7), and described reservoir channel is connected with outside by through hole (7).
2. the cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure according to claim 1, is characterized in that: described radio frequency (RF) coaxial connector (6) is connected with microwave source, for irradiator (3) the output microwave to shank front end by microwave source.
3. the cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure according to claim 1, it is characterized in that: on the inner position corresponding with through hole (7) of the described antenna body of rod (1), be also provided with strategic point stream and encircle (8), for preventing the liquid inflow water outlet of reservoir channel.
4. according to the cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure described in claim 1 or 3, it is characterized in that: described inlet channel, water outlet, reservoir channel are also connected with intake antrum (9), water chamber (10), fluid injection chamber (11) respectively; Described intake antrum (9), water chamber (10) and fluid injection chamber (11) are all arranged on the inside of handle (2), and described fluid injection chamber (11), intake antrum (9), water chamber (10) are connected with liquid injection pipe (12), water inlet pipe (13), outlet pipe (14) respectively.
5. according to the cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure described in claim 1 or 3, it is characterized in that: the maximum outside diameter of the described antenna body of rod (1) is 1.8 to 3 millimeters.
6. according to the cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure described in claim 1 or 3, it is characterized in that: the inside of the described antenna body of rod (1) is also provided with into water sleeve pipe (15), described water inlet sleeve pipe (15) is sleeved on the outside of coaxial cable (5), the outside of described water inlet sleeve pipe (15) is also set with fluid injection sleeve pipe (16), gap between described water inlet sleeve pipe (15) and coaxial cable (5) forms inlet channel, gap between described water inlet sleeve pipe (15) and fluid injection sleeve pipe (16) forms water channel, gap between the inwall of described fluid injection sleeve pipe (16) and the antenna body of rod (1) forms reservoir channel.
7. the cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure according to claim 1, is characterized in that: the front end of described aciculiform radiator cover (4) is dome shape.
8. the cyst Microwave Coagulation Therapy aciculiform antenna with drawing liquid structure according to claim 1, is characterized in that: described radio frequency (RF) coaxial connector (6) is arranged on the lower end of handle (2).
CN201410277945.8A 2014-06-20 2014-06-20 Microwave ablation needle antenna with infusion structure for curing cyst Pending CN104027168A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104720892A (en) * 2015-03-16 2015-06-24 李晓光 Microwave ablation antenna used for cystic tumor ablation therapy
CN105615980A (en) * 2016-01-18 2016-06-01 周平 Cyst thermal therapy device and application method thereof
CN106109011A (en) * 2016-08-30 2016-11-16 北京天助畅运医疗技术股份有限公司 A kind of blood vessel Microwave Coagulation water-cooled conduit
CN107115146A (en) * 2017-04-20 2017-09-01 南京维京九洲医疗器械研发中心 With the tumour Microwave Coagulation Therapy aciculiform antenna for taking out fluid-filling structure
CN107260302A (en) * 2017-04-20 2017-10-20 南京维京九洲医疗器械研发中心 Curved microwave ablation aciculiform antenna for treating fibroid
GB2563377A (en) * 2017-05-04 2018-12-19 Creo Medical Ltd Electrosurgical apparatus and method of tissue ablation
CN109350238A (en) * 2018-12-04 2019-02-19 上海交通大学医学院附属仁济医院 A Microwave Cyst Needle Structure
CN109820593A (en) * 2019-04-02 2019-05-31 江苏省肿瘤医院 A kind of Cystis therapeutic device based on ablation
CN111297472A (en) * 2020-03-25 2020-06-19 南京亿高微波系统工程有限公司 Multifunctional microwave ablation needle
CN111938809A (en) * 2020-08-19 2020-11-17 南京诺源医疗器械有限公司 Water-cooling type ablation needle
CN111956323A (en) * 2020-08-28 2020-11-20 南京诺源医疗器械有限公司 Temperature-adjustable ablation needle

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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 (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104720892A (en) * 2015-03-16 2015-06-24 李晓光 Microwave ablation antenna used for cystic tumor ablation therapy
CN105615980A (en) * 2016-01-18 2016-06-01 周平 Cyst thermal therapy device and application method thereof
CN106109011A (en) * 2016-08-30 2016-11-16 北京天助畅运医疗技术股份有限公司 A kind of blood vessel Microwave Coagulation water-cooled conduit
CN107115146A (en) * 2017-04-20 2017-09-01 南京维京九洲医疗器械研发中心 With the tumour Microwave Coagulation Therapy aciculiform antenna for taking out fluid-filling structure
CN107260302A (en) * 2017-04-20 2017-10-20 南京维京九洲医疗器械研发中心 Curved microwave ablation aciculiform antenna for treating fibroid
CN110312485A (en) * 2017-05-04 2019-10-08 科瑞欧医疗有限公司 Electrosurgical equipment for tissue ablation
GB2563377A (en) * 2017-05-04 2018-12-19 Creo Medical Ltd Electrosurgical apparatus and method of tissue ablation
CN110312485B (en) * 2017-05-04 2022-10-11 科瑞欧医疗有限公司 Electrosurgical device for tissue ablation
CN109350238A (en) * 2018-12-04 2019-02-19 上海交通大学医学院附属仁济医院 A Microwave Cyst Needle Structure
CN109820593A (en) * 2019-04-02 2019-05-31 江苏省肿瘤医院 A kind of Cystis therapeutic device based on ablation
CN109820593B (en) * 2019-04-02 2024-03-29 江苏省肿瘤医院 Cyst treatment device based on ablation
CN111297472A (en) * 2020-03-25 2020-06-19 南京亿高微波系统工程有限公司 Multifunctional microwave ablation needle
CN111938809A (en) * 2020-08-19 2020-11-17 南京诺源医疗器械有限公司 Water-cooling type ablation needle
CN111956323A (en) * 2020-08-28 2020-11-20 南京诺源医疗器械有限公司 Temperature-adjustable ablation needle

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Application publication date: 20140910