CN107260302A - Curved microwave ablation aciculiform antenna for treating fibroid - Google Patents
Curved microwave ablation aciculiform antenna for treating fibroid Download PDFInfo
- Publication number
- CN107260302A CN107260302A CN201710260139.3A CN201710260139A CN107260302A CN 107260302 A CN107260302 A CN 107260302A CN 201710260139 A CN201710260139 A CN 201710260139A CN 107260302 A CN107260302 A CN 107260302A
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- antenna
- aqueduct
- shank
- coaxial cable
- microwave ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00059—Material properties
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1823—Generators therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/183—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves characterised by the type of antenna
- A61B2018/1853—Monopole antennas
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1869—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument interstitially inserted into the body, e.g. needles
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Otolaryngology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to the Curved microwave ablation aciculiform antenna for treating fibroid, aqueduct extends forwardly into the front end of antenna, cooling medium is cooled the launch window region of antenna；Chokes ring on rear side of emitting area is fixed with the diversion seal of tube, and the gap between chokes ring and shank is used for the backflow of cooling medium；Slidable sheath pin is cased with outside shank, shank, aqueduct and coaxial cable are deflection.The launch window of antenna is arranged in aqueduct by the present invention, and cooling medium can cool to antenna front ends, it is ensured that the form of microwave ablation is relatively round；Shank uses flexible material, so that ablation antenna is suitable for vagina and the physiological bending in uterus during use, uterus can be entered from vagina and carry out myomata ablation, relative motion is carried out by sheath pin and aciculiform radiator cover, and then change the physical length of antenna mast body transmitting terminal, melted with adapting to different size of myomata.
Description
Technical field
The present invention relates to a kind of Curved microwave ablation aciculiform antenna for being used to treat fibroid, belong to microwave melt needle
Technical field.
Background technology
Fibroid is a kind of hormone-dependent neoplasm, and estrogen is the principal element for promoting myomata to grow, growth hormone,
Human placental prolactin can cooperate with estrogen to promote Uterine Smooth Cell mitosis, and therefore, fibroid is more common in reproduction age, nothing
Sexual life and the uncoordinated women of sexual life, gravidic fibroid can tachyauxesis.Fibroid can cause many clinics
Harm, such as uterine hemorrhage, hyper-menorrhea, menostaxis, abdominal mass and pressure symptom, dysmenorrhoea, and anaemia etc., is also infertile
With the main cause of miscarriage.Clinical treatment demand is quite varied.Surgery excision myomata or uterus are still common treatment method,
But the shortcomings of having wound big, or be unable to Reservations uterus.Increasingly mature in minimally-invasive treatment technology, especially country is on double only two
Today that tire policy will be opened, protection uterus is significant.The radio-frequency ablation technique of Via vagina is treated in fibroid
Field is had been achieved with more successfully applying, but the advantage for how combining microwave ablation techniques is still needed to be studied.Microwave
Though the existing Preliminary Applications of ablation fibroid, existing microwave ablation antenna is unfavorable for Via vagina to be carried out from uterine cavity face
Treatment, not only artificially destroys perimetric integrality through abdomen puncture microwave ablation, also easily causes neighbouring intestinal tube, wing
Guang is damaged, it is therefore necessary to develop Via vagina, the microwave ablation aciculiform antenna treated from uterine cavity.
The content of the invention
The technical problems to be solved by the invention are to overcome the disadvantages mentioned above of prior art to be used to treat son there is provided one kind
The Curved microwave ablation aciculiform antenna of palace myomata, Via vagina is not suitable for from palace to expect to solve microwave melt needle in the prior art
Cavity surface is treated, and can not meet the technical problems such as different size of fibroid focus treatment.
In order to solve the above technical problems, the Curved microwave ablation aciculiform provided by the present invention for treating fibroid
Antenna, including：Syringe needle, shank, coaxial cable, aqueduct and chokes ring, antenna have the chamber for accommodating coaxial cable and aqueduct
Room, is provided with inlet channel between aqueduct and coaxial cable, backwater road is provided between aqueduct and shank；It is characterized in that：
The chamber and aqueduct extend forwardly into the front end of antenna, and the launch window of antenna is at least part of to be located in aqueduct, is made
Cooling medium can cool to the launch window region of antenna；The aqueduct in Microwave emission region is that microwave can penetrate material
Matter, enables microwave outwards to radiate, and the remainder of aqueduct is micro-wave screening material；Chokes ring on rear side of emitting area
Fixed with the diversion seal of tube, make chokes ring play a part of stopping microwave, there is gap between chokes ring and shank, the gap is used
In the backflow of cooling medium；The sheath pin of slidable micro-wave screening material, the shank of the antenna, diversion are cased with outside the shank
Pipe and coaxial cable are deflection.
Antenna mast body is processed into using flexible material so that ablation antenna is suitable for vagina and son during use
The physiological bending in palace, directly can enter uterus from vagina and carry out myomata ablation, it is to avoid the perimetrium that abdomen puncture is caused
Integrity violations, and neighbouring intestinal tube, trauma of bladder, and can aid in puncturing flesh in the sheath pin for being arranged on antenna mast body front end
Knurl, and relative motion is carried out by sheath pin and syringe needle, and then change the physical length of syringe needle transmitting terminal, it is different size of to adapt to
Myomata melts.The launch window of antenna is arranged in aqueduct by the present invention so that cooling medium（Water）Can be to antenna front ends
Cooled, prevent the tumor tissues of high-temperature area from carbonization or coking, Jie of high-temperature area tumor tissues occurring in a short time
Electrostrictive coefficient change is small, so that microwave wavelength is basicly stable in surgical procedure, its climbing capacity is weak, coordinates chokes ring can be right
It is suppressed, " proper circle " coefficient（Minor axis/major diameter）Reach 0.95.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is antenna schematic diagram of the embodiment of the present invention.
Fig. 2 is Fig. 1 A areas amplification view.
Label is schematically as follows in figure：1- shanks, 2- coaxial cables, 3- pole pieces, 4- syringe needles, 5- antenna launch windows, 6- draws
Water pipe, the son pipes of 61- first, the son pipes of 62- second, 7- chokes rings, 8- takes out reservoir channel, 10- handles, 11- intake antrums, 12- water outlets
Chamber, 13- sheath pins, 14- radio frequency (RF) coaxial connectors, 15- water inlet pipes, 16- outlet pipes.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, 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 is used for the Curved microwave ablation aciculiform antenna for treating fibroid, including：
Handle 10, syringe needle 4, shank 1, coaxial cable 2, aqueduct 6 and chokes ring 7, antenna, which has, accommodates coaxial cable 2 and aqueduct 6
Chamber, be provided with inlet channel between aqueduct 6 and coaxial cable 2,（It is recommended that between utilizing between aqueduct 6 and coaxial cable 2
Gap is used as inlet channel）, backwater road is provided between aqueduct 6 and shank 1（It is recommended that utilizing the gap between aqueduct 6 and shank 1
It is used as backwater road）.As shown in Fig. 2 syringe needle 4（Zirconium dioxide tartar）Pole piece is provided with blind hole with opening backwards, blind hole
3, the inner wire of coaxial cable 2 is connected with pole piece 3（It is conductively connected）, antenna hair is formed between pole piece 3 and coaxial cable outer conductor 2
Penetrate window 5.Cavity is formed between the hole wall and pole piece 3, coaxial cable outer conductor 2 of blind hole, the front end of aqueduct is close or props up
The bottom of the blind hole so that the launch window 5 of antenna（It is at least part of）In aqueduct, so that cooling medium can
The launch window region of antenna is cooled.In this example, by aqueduct, cooling medium is drained to antenna foremost, from
And microwave radiation central area can be cooled down.Slidable micro-wave screening material is cased with outside shank 1（Stainless steel,
Copper or copper alloy）Sheath pin 13.In order to enable the antenna to bending, vagina and the physiological bending in uterus, the pin of antenna are adapted to
Bar, aqueduct and coaxial cable is deflections, and sheath pin 13 also can be using can flexing material, or half just material, such as stainless steel.
Sheath pin 13 is shorter, on the one hand provides certain rigidity to puncture and ensures, another aspect, by adjusting the position of sheath pin 13, can be with
Adjust the length of antenna emitting area（Microwave is sent from the needle portion for exposing sheath pin 13, and remaining is then shielded by sheath pin 13）.Pin
Bar and aqueduct back segment can select copper alloy, and flexible coaxial cable then may be selected in coaxial cable.As shown in figure 1, in handle 10
The radio frequency (RF) coaxial connector 14 being connected with coaxial cable is fixed with, the intake antrum 11 being connected with inlet channel is connected with water outlet
Water chamber 12.Water inlet pipe 15 and outlet pipe 16 are extended with from the lower end of handle 10, the front end connection intake antrum 11 of water inlet pipe 15 goes out
The front end connection water chamber 12 of water pipe 16.
In view of the pathological characters of fibroid, the maximum outside diameter of above-mentioned antenna shank 1 may be configured as 1.8 to 3 millis
Rice, such as 2.1 millimeters.
For make ablation needle front end under ultrasound and radioactive ray can clearer development, can also at least front end of shank 1 and
The surface of syringe needle 4 is coated with polytetrafluorethylecoatings coatings., can also be in polytetrafluorethylecoatings coatings simultaneously in order to ensure the effect developed
Middle addition aluminium powder.
Because the quality of myomata is generally harder, during microwave ablation is carried out, sheath pin 13 is first moved to shank
1 punctured foremost, is then moved rearwards by sheath pin 13, is punctured again to myomata by microwave melt needle, utilizes sheath pin
The change of 13 retrogressing length, changes the length at Microwave emission end, to adapt to different size of myomata, and that effectively widens such disappears
Melt the application of aciculiform antenna.
As shown in Fig. 2 in the present embodiment, aqueduct 6 is with the first sub- pipe 61 close to syringe needle and second away from syringe needle
Sub- pipe 62, the first sub- pipe 61 is isolation material, can select polyvinyl chloride（PVC）Or polytetrafluoroethylene (PTFE)（PTFE）Deng making microwave
Can be to external radiation, its rear portion is tightly connected with the second sub- pipe 61, it is ensured that cooling medium is fed forward；Second sub- pipe 62 is metal
Material, can select copper alloy；Its front portion is fixed with the sealing welding of chokes ring 7, makes chokes ring play a part of stopping microwave；Chokes
There is gap between ring and shank, the gap is used for the backflow of cooling medium.In Fig. 2, the arrow in antenna chamber represents cooling
The flow direction of medium.
Originally apply in example, the first sub- pipe 61 and second sub- pipe 62 sealing docking of aqueduct 6, chokes ring 7 is set in the second son
Pipe 62, and sealing welding fixes.Aqueduct can also use other assembling structures with chokes ring, for example：
1st, the first sub- pipe 62 of sub- pipe 61 and second is individually fixed in the rear and front end of chokes ring 7；
2nd, the endoporus of the first sub- pipe insertion chokes ring 7 carries out sealing fixation；The second sub- sealing welding of pipe 62 is in after chokes ring 7
End.
3rd, chokes ring 7 is set in the second sub- pipe 62, and the first sub- pipe 61 inserts the front portion of the second sub- pipe 62.
In addition to the implementation, the present invention can also have other embodiment.All use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (6)
1. the Curved microwave ablation aciculiform antenna for treating fibroid, including：Syringe needle, shank, coaxial cable, aqueduct
With chokes ring, antenna has the chamber for accommodating coaxial cable and aqueduct, inlet channel is provided between aqueduct and coaxial cable,
Backwater road is provided between aqueduct and shank；It is characterized in that：The chamber and aqueduct extend forwardly into the front end of antenna,
The launch window of antenna is at least part of to be located in aqueduct, cooling medium is dropped the launch window region of antenna
Temperature；The aqueduct in Microwave emission region is that microwave can penetrate material, microwave is outwards radiated, the remainder of aqueduct is
Micro-wave screening material；Chokes ring on rear side of emitting area is fixed with the diversion seal of tube, is played chokes ring and is stopped microwave
, there is gap in effect, the gap is used for the backflow of cooling medium between chokes ring and shank；It is cased with outside the shank slidable
The sheath pin of micro-wave screening material, shank, aqueduct and the coaxial cable of the antenna are deflection.
2. the Curved microwave ablation aciculiform antenna according to claim 1 for being used to treat fibroid, it is characterised in that：
The syringe needle, which has, has pole piece in blind hole, the blind hole, inner conductor is connected with pole piece, outside pole piece and coaxial cable
Antenna launch window is formed between conductor, the front end of the aqueduct is close or props up the bottom of the blind hole.
3. the Curved microwave ablation aciculiform antenna according to claim 1 for being used to treat fibroid, it is characterised in that：
The chokes ring set is outside aqueduct.
4. the Curved microwave ablation aciculiform antenna according to claim 1 for being used to treat fibroid, it is characterised in that：
The aqueduct has close to the first son pipe of syringe needle and the second son pipe away from syringe needle, and the first son pipe is isolation material,
Its rear portion is tightly connected with the second son pipe or chokes ring；The second son pipe is metal material, and its anterior sealed with chokes ring is welded
Connect fixation.
5. the Curved microwave ablation aciculiform antenna according to claim 1 for being used to treat fibroid, it is characterised in that：
Also have in handle, handle and be fixed with the radio frequency (RF) coaxial connector being connected with coaxial cable, the intake antrum being connected with inlet channel, with
The connected water chamber of water outlet.
6. the Curved microwave ablation aciculiform antenna according to claim 5 for being used to treat fibroid, it is characterised in that：
Also there is the water inlet pipe and outlet pipe stretched out from the lower end of handle or afterbody, the front end connection intake antrum of the water inlet pipe, water outlet
The front end connection water chamber of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710260139.3A CN107260302A (en) | 2017-04-20 | 2017-04-20 | Curved microwave ablation aciculiform antenna for treating fibroid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710260139.3A CN107260302A (en) | 2017-04-20 | 2017-04-20 | Curved microwave ablation aciculiform antenna for treating fibroid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107260302A true CN107260302A (en) | 2017-10-20 |
Family
ID=60073574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710260139.3A Pending CN107260302A (en) | 2017-04-20 | 2017-04-20 | Curved microwave ablation aciculiform antenna for treating fibroid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107260302A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108201468A (en) * | 2018-02-08 | 2018-06-26 | 南京康友医疗科技有限公司 | A kind of microwave melt needle with antenna module |
| 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 |
| CN109481014A (en) * | 2018-12-21 | 2019-03-19 | 南京康友医疗科技有限公司 | A kind of microwave ablation device with elastic bending radian |
| CN109602490A (en) * | 2018-11-27 | 2019-04-12 | 南京维京九洲医疗器械研发中心 | A kind of microwave ablation electrode under bronchoscope |
| WO2021139017A1 (en) * | 2020-01-07 | 2021-07-15 | 南京康友医疗科技有限公司 | Microwave ablation needle head and microwave ablation needle |
| CN113413210A (en) * | 2021-07-23 | 2021-09-21 | 南京瑞波医学科技有限公司 | Ablation antenna with injection and suction functions |
| EP4295799A1 (en) * | 2022-06-24 | 2023-12-27 | Varian Medical Systems Inc | Fluid-cooled low-profile microwave ablation probe with spherical ablation zone |
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| CN102846376A (en) * | 2011-05-31 | 2013-01-02 | 维万特医药股份有限公司 | Modified wet tip antenna design |
| CN104027168A (en) * | 2014-06-20 | 2014-09-10 | 章建全 | Microwave ablation needle antenna with infusion structure for curing cyst |
| CN104042342A (en) * | 2014-06-20 | 2014-09-17 | 章建全 | Curved microwave ablation needle-shaped antenna for treating uterine fibroids |
| CN106109012A (en) * | 2008-01-23 | 2016-11-16 | 柯惠Lp公司 | Chokes electrolyte loads electrode tip dipole microwave antenna |
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2017
- 2017-04-20 CN CN201710260139.3A patent/CN107260302A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106109012A (en) * | 2008-01-23 | 2016-11-16 | 柯惠Lp公司 | Chokes electrolyte loads electrode tip dipole microwave antenna |
| CN102846376A (en) * | 2011-05-31 | 2013-01-02 | 维万特医药股份有限公司 | Modified wet tip antenna design |
| CN104027168A (en) * | 2014-06-20 | 2014-09-10 | 章建全 | Microwave ablation needle antenna with infusion structure for curing cyst |
| CN104042342A (en) * | 2014-06-20 | 2014-09-17 | 章建全 | Curved microwave ablation needle-shaped antenna for treating uterine fibroids |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108201468A (en) * | 2018-02-08 | 2018-06-26 | 南京康友医疗科技有限公司 | A kind of microwave melt needle with antenna module |
| 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 |
| CN109602490A (en) * | 2018-11-27 | 2019-04-12 | 南京维京九洲医疗器械研发中心 | A kind of microwave ablation electrode under bronchoscope |
| CN109481014A (en) * | 2018-12-21 | 2019-03-19 | 南京康友医疗科技有限公司 | A kind of microwave ablation device with elastic bending radian |
| CN109481014B (en) * | 2018-12-21 | 2024-05-07 | 南京康友医疗科技有限公司 | Microwave ablation device with elastic bending radian |
| WO2021139017A1 (en) * | 2020-01-07 | 2021-07-15 | 南京康友医疗科技有限公司 | Microwave ablation needle head and microwave ablation needle |
| CN113413210A (en) * | 2021-07-23 | 2021-09-21 | 南京瑞波医学科技有限公司 | Ablation antenna with injection and suction functions |
| CN113413210B (en) * | 2021-07-23 | 2024-05-24 | 南京瑞波医学科技有限公司 | Ablation antenna with injection and suction functions |
| EP4295799A1 (en) * | 2022-06-24 | 2023-12-27 | Varian Medical Systems Inc | Fluid-cooled low-profile microwave ablation probe with spherical ablation zone |
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