CN109602490A - A kind of microwave ablation electrode under bronchoscope - Google Patents
A kind of microwave ablation electrode under bronchoscope Download PDFInfo
- Publication number
- CN109602490A CN109602490A CN201811453259.6A CN201811453259A CN109602490A CN 109602490 A CN109602490 A CN 109602490A CN 201811453259 A CN201811453259 A CN 201811453259A CN 109602490 A CN109602490 A CN 109602490A
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- China
- Prior art keywords
- shank
- wall
- microwave ablation
- ablation electrode
- coaxial cable
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- 238000002679 ablation Methods 0.000 title claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 239000011229 interlayer Substances 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims abstract description 4
- 239000000498 cooling water Substances 0.000 claims description 9
- 206010028980 Neoplasm Diseases 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000015271 coagulation Effects 0.000 abstract description 2
- 238000005345 coagulation Methods 0.000 abstract description 2
- 238000002560 therapeutic procedure Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 201000005202 lung cancer Diseases 0.000 description 3
- 208000020816 lung neoplasm Diseases 0.000 description 3
- 208000006558 Dental Calculus Diseases 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000011275 oncology therapy Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000007674 radiofrequency ablation Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00541—Lung or bronchi
-
- 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
- A61B2018/00589—Coagulation
-
- 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
Landscapes
- 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 microwave ablation electrodes under a kind of bronchoscope, it include: metal puncture head, shank, coaxial cable, shank is flexible shank, flexible shank has the interior double-layer structure for setting hollow interlayer, inlet channel is formed between flexible shank inner wall and coaxial cable outer wall, hollow interlayer forms return water road, the inner wall aperture of flexible shank front end or fluting, it is connected to inlet channel at this with return water road, the inner wall or outer wall of the shank at antenna launch window rear are coated with metal or setting metal mesh.Microwave ablation electrode pliability of the present invention is good, can implement Microwave Coagulation Therapy by the conduit of bronchoscope.The inner conduit structure for eliminating traditional water cooling ablation needle changes and realizes water cooling by double-deck flexible shank, and structure is more compact, easy to produce.Electrode head has puncturing head, can directly be pierced into tumour, chokes ring is directly fixed on coaxial cable outer conductor, can effectively inhibit microwave retroeflection, and ablation range can obtain the spherical shape greater than 3cm.
Description
Technical field
The present invention relates to the microwave ablation electrodes under a kind of bronchoscope, belong to microwave ablation techniques field.
Background technique
With the progress of oncotherapy science, clinically achieved in tumor microwave ablation techniques in recent years considerable
Progress.Microwave ablation is to generate fuel factor at once using microwave energy affected tissues, within several minutes of time, forms stable class
Spherical thermal field, central temperature are greater than 100 DEG C, and edge is greater than 60 DEG C, and moment is solidified inactivation to tumor tissues at high temperature, in turn
Gradually ablation reaches therapeutic purposes.Since the highly-safe and wound of microwave ablation techniques is small and to the sphere of action size of tissue
Controllably, so increasingly by the high praise of doctors, have the tendency that in the future as first choice of technology of tumour ablation.
Lung cancer is one of most common malignant tumour, and its disease incidence, in trend is risen year by year, case fatality rate has leapt to various
First of malignant tumour.Currently, surgical resection is still the main means of lung cancer therapy in clinical practice.But for the age
Early stage patient larger, constitution is on the weak side and cardio-pulmonary function is poor and most of patients with terminal are not appropriate for row operative treatment, because
This, is clinically still exploring new treatment means constantly to improve outcome and improve survival.
It finds, 105997234 A of Chinese invention patent application CN, discloses a kind of for being controlled under bronchoscope through retrieval
The magnetic navigation radio frequency ablation catheter of lung cancer, including pipe shaft are treated, pipe shaft one end connects ixed control section, ixed control section connection electrode
Section, electrode section are equipped with magnetic navigation device；It further include the handle being connect with the pipe shaft other end, handle is for controlling ixed control section
Bending；Multiple fill orifices are equipped on the end face of electrode section, multiple fill orifices are connected to the cooling-water duct being set in pipe shaft.
The program, which is able to cooperate magnetic navigation robot, remotely operates doctor's remote control even, the irradiation far from X-ray；Accurate positioning simultaneously,
Operating time can be reduced, operation risk is reduced.The cooling-water duct of configuration can be cooling to heated tumor tissues localized pulverization
Water avoids temperature excessively high, while keeping local organization impedance appropriate, is conducive to the ablation of tumor tissues.However its use to
The mode of outer water spray cools down syringe needle and ablation tissue, and amount of cooling water is limited, is unable to satisfy high-power quick ablation.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the disadvantages mentioned above of the prior art, provide under a kind of bronchoscope
Microwave ablation electrode.
In order to solve the above technical problems, the microwave ablation electrode under bronchoscope provided by the invention, comprising: metal
Tartar, medium tube, shank, coaxial cable, it is characterised in that: the shank is flexible shank, and flexible shank sets hollow in
The double-layer structure of interlayer forms inlet channel between the flexibility shank inner wall and coaxial cable outer wall, and the hollow interlayer is formed
Return water road, the inner wall aperture of the flexibility shank front end or fluting, are connected to inlet channel at this with return water road, antenna emitter window
The inner wall or outer wall of the shank at mouth rear are coated with metal or setting metal mesh.
Microwave ablation electrode pliability of the present invention is good, can implement Microwave Coagulation Therapy by the conduit of bronchoscope.It saves
The inner conduit structure of traditional water cooling ablation needle changes and realizes water cooling by double-deck flexible shank, and structure is more compact, convenient for life
It produces.Electrode head has puncturing head, can directly be pierced into tumour, chokes ring is directly fixed on coaxial cable outer conductor, Neng Gouyou
Effect inhibits microwave retroeflection, and ablation range can obtain the spherical shape greater than 3cm.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is one antenna head cross-sectional view of the embodiment of the present invention.
Fig. 2 is two antenna head cross-sectional view of the embodiment of the present invention.
Fig. 3 is triantennary of embodiment of the present invention head cross-sectional view.
Figure label is schematically as follows: 1: shank, 1-1: outer bar, 1-2: interior bar, 2: coaxial cable, 3: boss, 4: metal is worn
Tartar, 5: antenna launch window, 6: metal mesh, 7: chokes ring, 8: dielectric-sleeve.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
Embodiment one
As shown in Figure 1, the microwave ablation electrode under the present embodiment bronchoscope, comprising: metal puncture head 4, shank 1, coaxial
Cable 2 and the chokes ring 7 being set to outside the outer conductor of coaxial cable 2.The tail portion of metal puncture head 4 have boss 3, shank 1 with
The boss 3 is fixedly connected.The tail portion of metal puncture head 4 have boss 3 connect with 2 inner conductor of coaxial cable, boss 3 with it is coaxial
Antenna launch window 5 is formed between 2 outer conductor of cable.In the present embodiment, shank be flexible shank (processing of flexible plastic material and
At, or use silica gel material), flexible shank has the interior double-layer structure for setting hollow interlayer, that is, has interior bar 1-2 and outer bar 1-
1.Inlet channel is formed between flexible 1 inner wall of shank and 2 outer wall of coaxial cable, the hollow interlayer between interior bar 1-2 and outer bar 1-1 is then
Return water road, inner wall (interior bar 1-2) aperture of flexible shank front end or fluting are formd, connects inlet channel and return water road at this
Logical, water flow schematic diagram is shown in arrow in figure.The inner wall of the shank at 5 rear of antenna launch window is coated with metal or setting metal mesh, uses
To be shielded to microwave.The chokes ring 7 for being set to coaxial cable outer conductor can prevent microwave retroeflection, make ablation range
It presents round.
In the present embodiment as shown in Figure 1, there is gap between chokes ring 7 and shank inner wall, pass through for cooling water, grip
It is provided with metal mesh between stream ring and shank inner wall, improves the effect for stopping microwave retroeflection.
Embodiment two
As shown in Fig. 2, this implementation microwave ablation electrode body structure is the same as example 1, difference is metal puncture head 4
Dielectric-sleeve 8 is set on tail portion boss 3, shank 1 and dielectric-sleeve 8 are fixed.The shape of suit can be used in shank and dielectric-sleeve
Formula is fixed.
Embodiment three
As shown in figure 3, the present embodiment microwave ablation electrode body structure and embodiment two are essentially identical, difference is chokes ring 7
It is fixed between 2 outer conductor of coaxial cable and interior bar 1-2 inner wall, specifically, is led outside the inner ring and coaxial cable 2 of chokes ring 7
Body is welded and fixed, and the outer rim of chokes ring 7 is welded or is adhesively fixed with interior bar 1-2 inner wall.Chokes ring is uniformly provided with several spirals
Through-hole passes through for cooling water and guides to it, and the shank inner wall of chokes ring front end is provided with helicla flute, the rotation of helicla flute
It is consistent with the direction of rotation of spiral through-hole to turn direction.Spiral through-hole and helicla flute cooperation, before guiding the cooling water flowed through spiral
Into, reduce turbulent flow, improve the stability of water flow, keep the operation of cooling water more smoothly, and screw type water flow improve
Hot transfer efficiency, water-cooled effect is more preferable, electrode is made to be able to bear bigger power.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (6)
1. the microwave ablation electrode under a kind of bronchoscope, comprising: metal puncture head, shank, coaxial cable, feature exist
It is flexible shank in: the shank, flexible shank has an interior double-layer structure for setting hollow interlayer, the flexibility shank inner wall and same
Form inlet channel between shaft cable outer wall, the hollow interlayer forms return water road, the inner wall aperture of the flexibility shank front end or
Fluting, be connected to inlet channel at this with return water road, the inner wall or outer wall of the shank at antenna launch window rear be coated with metal or
Metal mesh is set.
2. the microwave ablation electrode under bronchoscope according to claim 1, it is characterised in that: coaxial cable outer conductor
On be fixed with chokes ring, between chokes ring and shank inner wall have gap, pass through for cooling water.
3. the microwave ablation electrode under bronchoscope according to claim 2, it is characterised in that: the chokes ring and needle
Metal mesh is provided between bar inner wall.
4. the microwave ablation electrode under bronchoscope according to claim 1, it is characterised in that: the metal puncture head
Tail portion there is boss, be set with dielectric-sleeve on the boss, the shank is fixed with dielectric-sleeve.
5. the microwave ablation electrode under bronchoscope according to claim 1, it is characterised in that: the metal puncture head
Tail portion there is boss, the shank is fixedly connected with the boss.
6. the microwave ablation electrode under bronchoscope according to claim 1, it is characterised in that: coaxial cable outer conductor
Chokes ring is fixed between shank inner wall, the chokes ring is uniformly provided with several spiral through-holes, is passed through with cooling water, described
The shank inner wall of chokes ring front end is provided with helicla flute, the direction of rotation of the helicla flute and the direction of rotation one of spiral through-hole
It causes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018114234173 | 2018-11-27 | ||
| CN201811423417 | 2018-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109602490A true CN109602490A (en) | 2019-04-12 |
Family
ID=66006437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811453259.6A Pending CN109602490A (en) | 2018-11-27 | 2018-11-30 | A kind of microwave ablation electrode under bronchoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109602490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114366289A (en) * | 2022-01-14 | 2022-04-19 | 南通大学 | Microwave ablation antenna and manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2698539A1 (en) * | 1992-12-01 | 1994-06-03 | Milly Lucien | Neutralising HIV in the human body - by selective super-heating of flowing blood, used for treating acquired immune deficiency syndrome |
| CN206198041U (en) * | 2016-06-15 | 2017-05-31 | 南京微创医学科技股份有限公司 | A kind of soft bar pin of microwave ablation |
| 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 |
| CN108175498A (en) * | 2018-01-31 | 2018-06-19 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | Cooling device of microwave ablation needle |
-
2018
- 2018-11-30 CN CN201811453259.6A patent/CN109602490A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2698539A1 (en) * | 1992-12-01 | 1994-06-03 | Milly Lucien | Neutralising HIV in the human body - by selective super-heating of flowing blood, used for treating acquired immune deficiency syndrome |
| CN206198041U (en) * | 2016-06-15 | 2017-05-31 | 南京微创医学科技股份有限公司 | A kind of soft bar pin of microwave ablation |
| 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 |
| CN108175498A (en) * | 2018-01-31 | 2018-06-19 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | Cooling device of microwave ablation needle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114366289A (en) * | 2022-01-14 | 2022-04-19 | 南通大学 | Microwave ablation antenna and manufacturing method |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190412 |
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| RJ01 | Rejection of invention patent application after publication |