CN107095718A - Radio-frequency ablation electrode and RF ablation device - Google Patents
Radio-frequency ablation electrode and RF ablation device Download PDFInfo
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- CN107095718A CN107095718A CN201710419023.XA CN201710419023A CN107095718A CN 107095718 A CN107095718 A CN 107095718A CN 201710419023 A CN201710419023 A CN 201710419023A CN 107095718 A CN107095718 A CN 107095718A
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- 238000007674 radiofrequency ablation Methods 0.000 title claims abstract description 124
- 230000004888 barrier function Effects 0.000 claims abstract description 47
- 230000000694 effects Effects 0.000 claims description 12
- 230000003902 lesion Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 abstract description 9
- 210000005036 nerve Anatomy 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 6
- 210000001835 viscera Anatomy 0.000 abstract description 5
- 206010028980 Neoplasm Diseases 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 238000005253 cladding Methods 0.000 abstract description 2
- 238000002560 therapeutic procedure Methods 0.000 abstract description 2
- 238000002679 ablation Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000011161 development Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000012285 ultrasound imaging Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000004382 visual function Effects 0.000 description 1
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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
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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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
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
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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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
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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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00434—Neural system
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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
- A61B2018/00589—Coagulation
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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
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
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Abstract
The present invention relates to a kind of radio-frequency ablation electrode, including electrode tip and the electrode body that is connected with the electrode tip.The electrode body includes the service portion and connecting portion being connected with each other.The service portion is arranged between the electrode tip and connecting portion.The periphery of the service portion is by the described first insulation layer segment covering.The part that the service portion is not covered by the first insulating barrier is RF ablation portion.The periphery of the connecting portion is completely covered by the second insulating barrier.Radio-frequency ablation electrode described above, sets the RF ablation portion between the electrode tip and the connecting portion.The electrode body in the RF ablation portion is exposed, the cladding without first insulating barrier.The RF ablation portion formed on the radio-frequency ablation electrode can accurate orientation angle.When doctor carries out radiofrequency ablation therapy to the important blood vessels or nerve in internal organs etc. tumour, additional injuries can be avoided.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of radio-frequency ablation electrode and RF ablation device.
Background technology
Radio-frequency ablation procedure is obtained very in the treatment of a variety of internal organs solid tumors as a kind of needle holder being applied to surgery Minimally means
Good therapeutic effect, obtains the accreditation of clinic.Traditional ablating electrode is all 360 degree of monopole or multipole electrode.Tradition disappears
Melt the ablation stove that electrode formed in application process substantially spherical in shape or spherical.Traditional ablating electrode eliminate focus when,
If when focus is close to important blood vessels or nerve, the spherical ablation stove of traditional ablating electrode be easy to damage close to focus blood vessel or
Nerve.Therefore, traditional ablating electrode still has the problem of accuracy is low, ablation effect is poor.
The content of the invention
Based on this, it is necessary to which there is provided the radio-frequency ablation electrode that a kind of accuracy is high, ablation effect is good and RF ablation dress
Put.
A kind of radio-frequency ablation electrode, including electrode tip and the electrode body that is connected with the electrode tip, the electrode body
Service portion and connecting portion including interconnection, the service portion are arranged between the electrode tip and connecting portion, the effect
The periphery in portion is by the described first insulation layer segment covering, and the part that the service portion is not covered by the first insulating barrier disappears for radio frequency
Melt portion, the periphery of the connecting portion is completely covered by the second insulating barrier.
In one embodiment, first insulating barrier is the outer circumferentially disposed circumferential angle along the electrode body
For 30 ° -330 ° of transparent insulating layer.
In one embodiment, the electrode tip is shaped as triangular pyramid.
In one embodiment, the outer of the electrode tip is circumferentially provided with the 3rd insulating barrier.
In one embodiment, the radio-frequency ablation electrode also includes being arranged at the electrode body and second insulation
Developing layer between layer；
The developing layer is outer circumferentially disposed around the connecting portion；
The developing layer is used to determine that the relative position depth of the radio-frequency ablation electrode active component and lesions position is closed
System.
In one embodiment, the radio-frequency ablation electrode also includes being arranged at the electrode body and second insulation
Scale layer between layer；
The scale layer is adjacent with the developing layer, and is arranged at the one of the close connecting portion of the electrode body
End；
The scale layer is around the outer circumferentially disposed of the connecting portion；
The scale layer is used to show that the radio-frequency ablation electrode is punctured to the size of human body.
In one embodiment, the scale layer includes replacing be disposed adjacent first around ring and second around ring；
Described first around ring with described second around the different color of ring setting.
In one embodiment, described first around ring and described second around ring equal in width.
A kind of RF ablation device, including radio-frequency ablation electrode and handle described above；
The handle is fixedly connected with the one end of the radio-frequency ablation electrode away from the electrode tip.
In one embodiment, the handle includes：Cue mark, the cue mark is relative with the RF ablation portion
Should, opening angle size and direction for indicating the RF ablation portion
Above-mentioned radio-frequency ablation electrode, including electrode tip and the electrode body that is connected with the electrode tip.The electrode sheet
Body includes the service portion and connecting portion being connected with each other.The service portion is arranged between the electrode tip and connecting portion.It is described to make
Covered with the periphery in portion by the described first insulation layer segment.The part that the service portion is not covered by the first insulating barrier is radio frequency
Ablation portion.The periphery of the connecting portion is completely covered by the second insulating barrier.Radio-frequency ablation electrode described above, in the electrode
The RF ablation portion is set between head and the connecting portion.The electrode body in the RF ablation portion is exposed, is not had
There is the cladding of first insulating barrier.The RF ablation portion formed on the radio-frequency ablation electrode can accurately be positioned
Angle.When doctor carries out radiofrequency ablation therapy to the important blood vessels or nerve in internal organs etc. tumour, volume can be avoided
Outer damage.
Brief description of the drawings
The front view for the radio-frequency ablation electrode that Fig. 1 provides for one embodiment of the invention；
The sectional view for the radio-frequency ablation electrode that Fig. 2 provides for one embodiment of the invention；
The schematic diagram for the RF ablation device that Fig. 3 provides for one embodiment of the invention；
The cut-away view for the RF ablation device that Fig. 4 provides for one embodiment of the invention.
Drawing reference numeral explanation：
Radio-frequency ablation electrode 10
RF ablation device 20
Electrode tip 100
3rd insulating barrier 110
Electrode body 200
RF ablation portion 210
Service portion 210a
Connecting portion 220
First insulating barrier 230
Second insulating barrier 240
Developing layer 250
Scale layer 260
First around ring 261
Second around ring 262
Handle 300
Cue mark 310
Water inlet pipe 410
Temperature measuring equipment 420
Outlet pipe 430
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples pair
The radio-frequency ablation electrode and RF ablation device of the present invention is further described.It should be appreciated that specific reality described herein
Example is applied only to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, provide a kind of radio-frequency ablation electrode 10, including electrode tip 100 and it is connected with the electrode tip 100
Electrode body 200.The electrode body 200 includes the service portion 210a and connecting portion 220 being connected with each other.The service portion 210a
It is arranged between the electrode tip 100 and connecting portion 220.Covered by the part of the first insulating barrier 230 periphery of the service portion 210a
Lid.The part that the service portion 210a is not covered by first insulating barrier 230 is RF ablation portion 210.The connecting portion
220 periphery is completely covered by the second insulating barrier 240.
Specifically, the electrode tip 100 is metal electrode head.The electrode tip 100 is fastened on described by processing technology
The front end of electrode body 200.With first 100 tip of the metal electrode for starting point, the naked of corresponding length has been stayed by different model
Reveal electrode.The diameter of the electrode body 200 can also be modified and set according to the size for the focus that ablation is needed in operation
Meter.In one embodiment, a diameter of 1.5mm of the electrode body 200.Described is sprayed on the electrode body 200
One insulating barrier 230.First insulating barrier 230 makes the electrode body 200 directly not exposed.First insulating barrier 230 is
The insulating barrier of transparent high temperature resistant.First insulating barrier 230 can insulate first.Hair will be completely cut off by scribbling the part of insulating barrier
Heat, it is to avoid infringement is produced to human normal tissue.Secondly, first insulating barrier 230 can lubricate, and reduce resistance when puncturing
Power.It is appreciated that first insulating barrier 230 can be actually needed in operation, it is incomplete to spray in the electrode
Body 200.State service portion 210a and connecting portion 220 that electrode body 200 includes being connected with each other.The service portion 210a with it is described
Electrode tip 100 is connected.Set in the junction of the electrode body 200 and the electrode tip 100 and exposed do not spray described the
The opening of one insulating barrier 230.The position formed in the opening is the RF ablation portion 210.I.e. in the service portion 210a
Form the RF ablation portion 210 not covered by first insulating barrier 230.The shape in the RF ablation portion 210
Specific restriction is not done with size, can be needed to be configured according to different operations.Specifically, it can be the electrode tip
100 and the RF ablation portion 210 total length be effective electrode length.The electrode tip 100 can set very short, one
In individual embodiment, the electrode tip 100 could be arranged to 2-4mm, and the length in the RF ablation portion 210 can be 35mm.Institute
State and determine angle ablation, be to avoid important blood vessel or internal organs.
In the present embodiment, the RF ablation portion 210 ensure that the position that the radio-frequency ablation electrode 10 works is
Set angle, the exposed RF ablation portion 210 electrode part.So user just can be according to the different focuses of patient
Situation selects the electrode of different exposed angles, protection important organ, blood vessel or the nerve of maximum possible.The radio-frequency ablation electrode
10 when in use, and the radio-frequency ablation electrode 10 is connected by wire with RF ablation controller.After energization, pass through RF ablation
Controller controls RF energy.When RF energy is launched, doctor is according to image documentation equipment and the handle of the radio-frequency ablation electrode 10
The instruction of angle direction determines ablation locations and direction.So described electrode tip 100 and the RF ablation portion 210 it is exposed
RF energy is launched in part, implements orientation ablation to focus.It is appreciated that the electrode tip 100 is very short, and, determine angle
The RF ablation of degree, which is mainly, avoids important blood vessel or internal organs.First insulating barrier 230 surrounds the RF ablation electricity
A part for pole 10, so that RF energy can only outwards be launched at the RF ablation portion 210, it is achieved thereby that determining angle
Accurate RF energy transmitting.So as to which the radio-frequency ablation electrode 10 is realized only to be melted to the focus for needing RF ablation, right
Other important organs, the influence of blood vessel and nerve are preferably minimized.
In one embodiment, first insulating barrier 230 is the outer circumferentially disposed week along the electrode body 200
To the transparent insulating layer that angle is 30 ° -330 °.
It is appreciated that the RF ablation portion 210 is for the angle that the outer circumference along the electrode body 200 is opened up
30 ° -330 ° of opening.The RF ablation portion 210 is not covered with first insulating barrier 230.The RF ablation portion 210 is straight
Connect and expose the electrode body 200.
Specifically, the RF ablation portion 210 can be the square, rectangular of the regular electrode body 200 as described in surrounding
Shape, circular or any irregular figure.The setting that the RF ablation portion 210 is open can according to specific size of tumor and
Shape is set.The RF ablation portion 210 can be that the angle opened up along the outer circumference of the electrode body 200 is
30 ° -330 °, the opening that depth is 3mm-40mm.It is appreciated that the opening angle in the RF ablation portion 210 can for 30 °,
50°、60°、90°、110°、160°、240°、280°、320°.More specifically, the opening depth in the RF ablation portion 210 also may be used
To be selected in the range of 3mm-40mm.More preferably, the RF ablation portion 210 is along the electrode body 200
Open up 30 ° -120 ° of outer circumference directly expose the opening of the electrode body 200.
In the present embodiment, the radio-frequency ablation electrode 10 is disappeared using with certain opening angle, rule the radio frequency
Melt portion 210.The rule design in the RF ablation portion 210 so that doctor using during the radio-frequency ablation electrode 10,
It is easier to make the alignment of RF ablation portion 210 focus so that surgical procedure is simpler, accurate.
In one embodiment, the electrode tip 100 is shaped as triangular pyramid.
Specifically, the shape of the electrode tip 100 is not intended to limit, and can be cone, triangular pyramid or polygonal pyramid shape.It is described
Electrode tip 100, which is designed as triangular pyramid shape, can keep optimal puncture resistance and strength of materials performance.The electrode tip 100 and institute
The total length for stating RF ablation portion 210 can be 5mm-50mm.
Referring to Fig. 2, in one embodiment, the outer of the electrode tip 100 is circumferentially provided with the 3rd insulating barrier 110.
In one embodiment, the electrode tip 100 can set certain length, can be covered at the electrode tip 100
The insulating barrier 110 of lid the 3rd.It is also understood that insulation and the lubrication of the 3rd insulating barrier 110 and first insulating barrier 230
Effect can be with identical.The electrode tip 100 is primarily served, and after the effect of puncture, lubrication the electrode tip 100 can be more convenient
Into human body.
In one embodiment, the radio-frequency ablation electrode 10 also includes being arranged at the electrode body 200 and described the
Developing layer 250 between two insulating barriers 240.The developing layer 250 is outer circumferentially disposed around the connecting portion 220.It is described aobvious
Shadow layer 250 is used for the relative position depth relationship for determining the active component of radio-frequency ablation electrode 10 and lesions position.
Specifically, the effect of the developing layer 250 is main visual under developing apparatus, plays mark effect, helps to cure
The raw relative position for determining ablating electrode and focus.The developing layer 250 can be developing ring.The length of the developing ring and institute
The length for stating radio-frequency ablation electrode 10 is related.The developing layer 250 is act as：Make operation doctor can developing apparatus help
The relative position of the radio-frequency ablation electrode 10 and focus is directly observed down, so that accurate depthkeeping.In one embodiment, it is described
Thickness of the developing layer 250 in the circumference of electrode body 200 is 0.05mm, and the developing layer 250 is in the electrode body 200
Width on length direction is 5-10mm.
The developing layer 250 can be developed using enhancing development X-ray or decrease development B ultrasound two ways, to provide
Used to different developing apparatuses.Specifically, one is, develops under X-ray, and the developing layer 250 uses barium sulfate-containing class material
To strengthen X-ray development, specific relative position of the ablating electrode for carrying out Minimally Invasive Surgery with focus in human body can be seen under X-ray
Put, so as to be accurately positioned.Two are, the use of developing layer 250 can increase absorption, strengthen the material of scattered sound waves.Show under B ultrasound
Shadow, because B ultrasound uses ultrasonic reflections imaging, the developing layer 250 uses increase and absorbs, strengthens scattering sound
The coating material of ripple, decrease scribbles the imaging of developing ring position to show difference.Sound absorption refers to that sound wave is propagated or on boundary in medium
In the reflection process of face, the phenomenon of energy reduction, the reason for causing sound absorption is mainly the viscosity, heat conductivity and molecule of medium
Relaxation process, makes regular sound kinergety be irreversibly transformed into irregular energy of thermal motion.It is basis to strengthen scattering
Rayleigh scattering principle selects suitable size micro particulate materials, and decrease B ultrasound imaging coating is made jointly with enhancing acoustic wave absorbing material
Material, is applied to electrode development ring position, to reach difference development purpose.
In one embodiment, the radio-frequency ablation electrode 10 also includes being arranged at the electrode body 200 and described the
Scale layer 260 between two insulating barriers 240.The scale layer 260 is adjacent with the developing layer 250, and is arranged at the electrode
One end of the close connecting portion 220 of body 200.The scale layer 260 is around the outer circumferentially disposed of the connecting portion 220.
The scale layer 260 is used to show that the radio-frequency ablation electrode 10 is punctured to the size of human body.
Specifically, traditional electrode when show electrode penetrates human dimension, it is necessary to provide display device in addition.This implementation
In example, the scale layer 260 can directly display the size that the radio-frequency ablation electrode 10 is punctured to human body.Pass through the development
Layer 250 can set different materials, so as to realize visual function under developing apparatus.The developing layer 250 and described
Scale layer 260 is disposed adjacent.Because the developing layer 250 and scale layer 260 are on the length direction of electrode body 200
Width set in advance.Therefore it can be coordinated by the developing layer 250 and scale layer 260, directly read described
Radio-frequency ablation electrode 10 penetrates human dimension.
In one embodiment, the scale layer 260 includes replacing be disposed adjacent first around ring 261 and second around ring
262.Described first sets different colors around ring 262 around ring 261 and described second.
Specifically, described first different width are could be arranged to around ring 262 around ring 261 and described second.Such as：It is described
First around ring 261 width be 50mm, described second around ring 262 width be 10mm.For another example, described first around ring 261
Width is 20mm, described second around ring 262 width be 40mm.Described first around ring 261 and described second around ring 262 setting
Different colors, be in order to prevent doctor estimation error.Set different colors easily to read the RF ablation portion 210 to enter
The depth of human body, makes the use of the radio-frequency ablation electrode 10 safer.
In one embodiment, described first around ring 261 and described second around the equal in width of ring 262.
The width of the scale layer 260 is relevant with the width of the developing layer 250.Specifically, each described first around ring
261 width can be equal with the width of the developing layer 250.Described second can be with the developing layer around the width of ring 262
250 width is equal, can also be unequal with the width of the developing layer 250.Specifically, described first around ring 261 and described
Second can be counted from the electrode tip 100 around the design of ring 262, per another colors of last 10mm of 50mm length,
Can also be per the circulation of 50mm scales.It can also set, the money degree of the developing ring of the developing layer 250 is 10mm.Described first around
Ring 261 and described second is disposed adjacent around ring 262 with the developing ring.Described first hands over around ring 261 and described second around ring 262
For being disposed adjacent.Described first is 50mm around the width of ring 262 around ring 261 and described second.
In the present embodiment, the design of the scale layer 260 of different in width operates doctor to judge from electrode in vitro end to help
Electrode enters the depth of human body.The scale layer 260 can be shown by external scale, be accurately positioned ablating electrode and be pierced into human body
Depth.
In embodiments of the invention, determining angle is realized by the exposed angle of effective radio-frequency electrode, and angle is towards by curing
Raw or user, which rotates, to be determined.Depthkeeping degree is by the exposed longitudinal length of effective radio-frequency electrode, and electrode developing ring front position
(can be differentiated under developing apparatus) is determined with focus relative position.In embodiments of the invention, depthkeeping degree can be understood as：
Firstth, the longitudinal length of bare electrode, refers to from the Rhizoma Sparganii cone of electrode tip 100 to the lower edge of the first insulating barrier 230
Size, have different fixed values (5-50mm).Secondth, the presence of described developing layer 250 so that doctor can be in developing apparatus
With the help of, it is definite to determine the relative position depth relationship of electrode active component and lesions position, rather than only rely on outside by means of electrode
Table scale is estimated.
Fig. 3-Fig. 4 is referred to, in one embodiment there is provided a kind of RF ablation device 20, including described above is penetrated
Frequency ablating electrode 10 and handle 300.The handle 300 and the one end of the radio-frequency ablation electrode 10 away from the electrode tip 100
It is fixedly connected.
In one embodiment, the handle 300 includes：Cue mark 310.The cue mark 310 and the radio frequency
Ablation portion 210 is corresponding, opening angle size and direction for indicating the RF ablation portion 210.
Specifically, the cue mark 310 is arranged at the rear end face of the handle 300.The cue mark 310 can
Show angular dimension and the direction in the RF ablation portion 210.
There is provided a kind of RF ablation device 20 in one embodiment.The RF ablation device 20 includes single needle depthkeeping
Spend the radio-frequency ablation electrode 10 for determining angle and the handle 300 being attached thereto.The front end of the radio-frequency ablation electrode 10 is the electricity
Cartridge 100, rear end is the electrode body 200.The electrode body 200 is metal catheter.The electrode tip 100 is triangular pyramid
Electrode tip, the bare electrode depth of triangular pyramid electrode tip 100 is 5~50mm.The circumferentially angle on the electrode tip 100
30 °~330 ° transparent first insulating barriers 230 of spraying.In use, the exposed side of the radio-frequency ablation electrode 10
I.e., the part do not wrapped up by first insulating barrier 230 plays RF ablation effect to focus to breach.In the developing layer
250 and scale layer 260 on cover transparent second insulating barrier 240 so that whole radio-frequency ablation electrode 10 only has the radio frequency
RF ablation effect is played to focus in ablation portion 210.The setting that developing layer 250 and the scale layer 260 is facilitates doctor
The useful effect position and direction of electrode are observed in implementation process.
In use, operation doctor can need the RF ablation device 20 according to clinic and focus situation selects to close
The electrode of exposed depth and angle is fitted, determines that electrode rises in human body by the cue mark 310 on the handle 300
The direction of effect and angle.Therefore, when RF energy is launched, only electrode exposed part works, and other are by described first
The part of the insulating barrier 240 of insulating barrier 230 and second covering can not conduct RF energy, it is achieved thereby that accurately controlling RF energy
The depth of transmitting and direction, only to need melt pathological tissues carry out RF ablation, without to its neighbouring vitals,
Blood vessel and nerve produce damage.
In one embodiment, as shown in figure 4, the inside of the electrode body 200 can set water inlet pipe 410, thermometric
Device 420 and outlet pipe 430.The pipeline of water circulation is set in the inside of the electrode body 200, makes the radio-frequency ablation electrode
10 temperature in use can be controlled effectively.Water in the radio-frequency ablation electrode 10 is through the water inlet pipe
410 enter the inside of the electrode body 200.The electrode body 200 can be obtained in real time at the temperature measuring equipment 420
Temperature.After thermometric, water flows out from the outlet pipe 430 again.The radio frequency can be understood by the water temperature obtained in real time to disappear
Melt the behaviour in service of electrode 10.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of radio-frequency ablation electrode, including electrode tip (100) and the electrode body (200) that is connected with the electrode tip (100),
It is characterized in that：The electrode body (200) includes the service portion (210a) and connecting portion (220) being connected with each other, the effect
Portion (210a) is arranged between the electrode tip (100) and connecting portion (220), and the periphery of the service portion (210a) is exhausted by first
Edge layer (230) part is covered, and the part that the service portion (210a) is not covered by first insulating barrier (230) disappears for radio frequency
Melt portion (210)；
The periphery of the connecting portion (220) is completely covered by the second insulating barrier (240).
2. radio-frequency ablation electrode as claimed in claim 1, it is characterised in that first insulating barrier (230) is along described
The outer circumferentially disposed circumferential angle of electrode body (200) is 30 ° -330 ° of transparent insulating layer.
3. radio-frequency ablation electrode as claimed in claim 1, it is characterised in that the electrode tip (100) is shaped as triangular pyramid
Shape.
4. radio-frequency ablation electrode as claimed in claim 1, it is characterised in that outer being circumferentially provided with of the electrode tip (100)
3rd insulating barrier (110).
5. radio-frequency ablation electrode as claimed in claim 1, it is characterised in that the radio-frequency ablation electrode (10) also includes setting
Developing layer (250) between the electrode body (200) and second insulating barrier (240)；
The developing layer (250) is outer circumferentially disposed around the connecting portion (220)；
The developing layer (250) is used to determine that the relative position of the radio-frequency ablation electrode (10) active component and lesions position is deep
Degree relation.
6. radio-frequency ablation electrode as claimed in claim 5, it is characterised in that the radio-frequency ablation electrode (10) also includes setting
Scale layer (260) between the electrode body (200) and second insulating barrier (240)；
Scale layer (260) is adjacent with the developing layer (250), and is arranged at close described of the electrode body (200)
One end of connecting portion (220)；
The scale layer (260) is around the outer circumferentially disposed of the connecting portion (220)；
The scale layer (260) is used to show that the radio-frequency ablation electrode (10) is punctured to the size of human body.
7. radio-frequency ablation electrode as claimed in claim 6, it is characterised in that the scale layer (260) includes what is be arranged alternately
First around ring (261) and second around ring (262)；
Described first around ring (261) with described second around the different color of ring (262) setting.
8. radio-frequency ablation electrode as claimed in claim 7, it is characterised in that described first around ring (261) and described second around
Ring (262) equal in width.
9. a kind of RF ablation device, it is characterised in that including：RF ablation electricity as any one of claim 1-8
Pole (10) and handle (300)；
The handle (300) is fixedly connected with the one end of the radio-frequency ablation electrode (10) away from the electrode tip (100).
10. RF ablation device as claimed in claim 9, it is characterised in that the handle (300) includes：Cue mark
(310), the cue mark (310) is corresponding with the RF ablation portion (210), for indicating the RF ablation portion
(210) opening angle size and direction.
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| CN201710419023.XA CN107095718A (en) | 2017-06-06 | 2017-06-06 | Radio-frequency ablation electrode and RF ablation device |
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| CN201710419023.XA CN107095718A (en) | 2017-06-06 | 2017-06-06 | Radio-frequency ablation electrode and RF ablation device |
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