CN207804370U - A kind of radio frequency ablation electrode device, endoscope - Google Patents
A kind of radio frequency ablation electrode device, endoscope Download PDFInfo
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- CN207804370U CN207804370U CN201720707958.3U CN201720707958U CN207804370U CN 207804370 U CN207804370 U CN 207804370U CN 201720707958 U CN201720707958 U CN 201720707958U CN 207804370 U CN207804370 U CN 207804370U
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- electrode
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- endoscope
- radio frequency
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Abstract
The utility model discloses a kind of radio frequency ablation electrode device, endoscopes, belong to the field of medical instrument technology.Described device includes：Electrode assembly, the plug being connect with the electrode assembly；The electrode assembly includes：Central electrode, the insulating layer being sheathed on the central electrode, the outer electrode being sheathed on the insulating layer and the outer protective sleeve being sheathed on the outer electrode, the outer diameter of the outer protective sleeve is less than 0.4mm, and the central electrode and the outer electrode are used for and wait for RF ablation location contacts.The endoscope includes the radio frequency ablation electrode device.The electrode assembly that the utility model is arranged by using multilayer, and the outer diameter of the outer protective sleeve of the electrode assembly is less than 0.4mm, electrode assembly is allow to enter the cavity of a diameter of 1mm of inside of human body or so, body cavities can also be entered by the channel of endoscope, radiofrequency ablation therapy is carried out under endoscope direct-view.
Description
Technical field
The utility model is related to the field of medical instrument technology, more particularly to a kind of radio frequency ablation electrode device, endoscope.
Background technology
In field of medical technology, endoscope can enter many tiny cavities of human body, and endoscope can be seen after entering
It examines in cavity or the case where histoorgan.For the pathological tissues observed, can by drug irrigation, perform the operation or penetrate
The methods of frequency ablation is treated.Wherein, RF ablation refers to that the electrode catheter of radio frequency ablation electrode device is passed through human body chamber
Road enters pathological tissues position, and generating pyrocaloric effect using radio-frequency current kills pathological tissues or cell, to reach
The purpose for the treatment of.
The structure for the radio frequency ablation electrode device that the prior art provides is as shown in Figure 1 comprising contre electrode needle 1X, encloses
Around surrounding electrode needle 2X, the guide pin 3X outside the surrounding electrode needle 2X of the 1X distributions of contre electrode needle, and and guide pin
The guide pin seat 4X of 3X connections, the control handle 5X being connect with the guide pin seat.Wherein, the diameter of guide pin is usually 2mm or so.It is logical
Crossing control handle 5X can be such that contre electrode needle 1X and surrounding electrode needle 2X is moved in guide pin 3X.When in use, radio frequency is disappeared
The guide pin 3X for melting electrode assembly enters human body, and contre electrode needle 1X and surrounding electrode needle 2X are retracted in guide pin 3X at this time, not with
Tissue contacts, and after guide pin 3X is inserted into pathological tissues, makes contre electrode needle 1X and surrounding electrode needle by controlling handle 5X
2X is also inserted into pathological tissues, and generating pyrocaloric effect using radio-frequency current is treated.The radio frequency ablation electrode device is usually used
In the ablation of the solid tissues such as liver, lung, pathological tissues are directly inserted by broken skin puncture.
In the process of implementing the utility model, designer has found that the existing technology has at least the following problems：
For many tiny cavities of human body, such as breast duct, lacrimal passage, salivary gland, a diameter of 1mm of these cavities is left
The size on the right side, these pathological tissues also only has 1mm or so, cannot reach therapeutic effect with drug irrigation, operation is also not easy to look for
To diseased region, need to use radio-frequency ablation technique.And the guide pin diameter of existing radio frequency ablation electrode device is in 2mm or so,
The cavity of a diameter of 1mm of inside of human body or so cannot be entered.
Utility model content
In order to solve the problems, such as that the prior art is above-mentioned, the utility model embodiment provides a kind of radio-frequency ablation electrode dress
It sets, endoscope.The technical solution is as follows：
On the one hand, the utility model embodiment provides a kind of radio frequency ablation electrode device, and described device includes：Electrode group
Part, the plug being connect with the electrode assembly；
The electrode assembly includes：Central electrode, is sheathed on the insulation at the insulating layer being sheathed on the central electrode
Outer electrode on layer and the outer protective sleeve being sheathed on the outer electrode,
The outer diameter of the outer protective sleeve is less than 0.4mm, the central electrode and the outer electrode for disappearing with radio frequency is waited for
Melt location contacts.
Preferably, the front end of the electrode assembly is step structure, the middle electrocardio at the front end of the electrode assembly
Pole, the insulating layer and the outer electrode are exposed to the outside of the outer protective sleeve.
Preferably, the length of the central electrode, the insulating layer, the outer electrode and the outer protective sleeve is successively
Reduce, and the central electrode, the insulating layer, the outer electrode and the outer protective sleeve) one end alignment setting.
Preferably, a diameter of 0.1-0.2mm of the central electrode.
Preferably, the internal diameter of the insulating layer is 0.12-0.22mm, wall thickness 0.012-0.014mm.
Preferably, the internal diameter of the outer electrode is 0.16-0.26mm, wall thickness 0.05-0.07mm.
Preferably, the internal diameter of the outer protective sleeve is 0.3-0.35mm, wall thickness 0.014-0.016mm.
Preferably, described device further includes：Pillar between the electrode assembly and the plug, the electrode group
Part is connect by the conducting wire in pillar with the plug.
Preferably, the pillar is connect by connecting sleeve with the outer protective sleeve of the electrode assembly.
On the other hand, the utility model embodiment provides a kind of endoscope, and the endoscope includes described above penetrates
Frequency ablation electrode assemblies.
The advantageous effect brought of technical solution that the utility model embodiment provides is：
The electrode assembly being arranged by using multilayer, and the outer diameter of the outer protective sleeve of the electrode assembly is less than 0.4mm,
The maximum gauge of the electrode assembly for the radio frequency ablation electrode device that i.e. the utility model embodiment provides is less than 0.4mm so that electricity
Pole component can enter the cavity, such as breast duct, lacrimal passage, salivary gland etc. of a diameter of 0.4mm of inside of human body or so, can also be into
It is 0.4mm reservoir channels to enter endoscope diameter, is inserted into lesion under endoscope direct-view, carries out radiofrequency ablation therapy.By described
Central electrode and the outer electrode and wait for RF ablation location contacts, two electrodes inside of human body by with tissue
Contact and be formed into a loop, generating pyrocaloric effect using radio-frequency current treats RF ablation position and is treated.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the radio frequency ablation electrode device structural schematic diagram that the prior art provides；
Fig. 2 is the radio frequency ablation electrode device structural schematic diagram that the utility model embodiment provides；
Fig. 3 is the radio frequency ablation electrode device front end that the utility model embodiment provides, enlarged drawing at the A in Fig. 2；
RF generator architecture schematic diagram in the radio frequency ablation system that Fig. 4 the utility model embodiments provide；
Fig. 5 is the schematic diagram of the endoscope of the utility model embodiment offer in use；
Fig. 6 is the structural schematic diagram for the endoscope that the utility model embodiment provides.
Wherein, reference numeral is：
1X, contre electrode needle；2X, surrounding electrode needle；3X, guide pin；4X, guide pin seat；5X, control handle；
1, electrode assembly；2, plug；3, pillar；4, connecting sleeve；5, radio frequency generator；6, work telescope；7, fluid injection
Channel；8, endoscope image guide bundles；
101, central electrode；102, insulating layer；103, outer electrode；104, outer protective sleeve；
501, RF electrode assemblies interface；502, battery charging interface；503, charging indicator light；504, discharge indicating lamp；
505, radio frequency output indicator；506, radio frequency exports control button.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
In a first aspect, the utility model provides a kind of radio frequency ablation electrode device, referring to Fig. 2 and Fig. 3, described device packet
It includes：Electrode assembly 1, the plug 2 being connect with the electrode assembly 1；
The electrode assembly 1 includes：Central electrode 101, is arranged the insulating layer 102 being sheathed on the central electrode 101
In on the insulating layer 102 outer electrode 103 and the outer protective sleeve 104 that is sheathed on the outer electrode 103, it is described
The outer diameter of outer protective sleeve 104 is less than 0.4mm, and the central electrode 101 and the outer electrode 103 are used for and wait for RF ablation
Location contacts.
Illustrate the advantageous effect and operation principle of the utility model embodiment below：
The electrode assembly 1 being arranged by using multilayer, and the outer diameter of the outer protective sleeve 104 of the electrode assembly 1 is less than
The maximum gauge of the electrode assembly 1 for the radio frequency ablation electrode device that 0.4mm, i.e. the utility model embodiment are provided is less than 0.4mm,
Electrode assembly 1 is allow to enter cavity, such as breast duct, lacrimal passage, salivary gland of a diameter of 0.4mm of inside of human body or so etc.,
It is 0.4mm reservoir channels that endoscope diameter, which can also be entered, is inserted into lesion under endoscope direct-view, carries out radiofrequency ablation therapy.
Its operation principle is by the central electrode 101 and the outer electrode 103 and to wait for RF ablation location contacts, in Fig. 5
Shown, two electrodes are formed into a loop in inside of human body by the contact with tissue, and the arrow direction in Fig. 5 is namely
The direction being formed into a loop between two electrodes is treated RF ablation position using radio-frequency current generation pyrocaloric effect and is controlled
It treats.
It should be noted that the radio frequency ablation electrode device in the prior art such as Fig. 1 cannot directly carry out the reduction of size
And realize the effect for the radio frequency ablation electrode device that the utility model embodiment provides, because the electrode that the prior art provides is single
Contre electrode needle 1X in electrode, such as Fig. 1 and surrounding electrode needle 2X around the 1X distributions of contre electrode needle, is using
When, it needs that electrode one end is made to enter inside of human body, it is also necessary to the other end of its electrode is in contact with human external skin, and
The electrode area of the one end being in contact with human skin is larger, about the rectangular size of 210mm × 297mm, to pass through people
Body formed electrode one end to the circuit of the other end, and the electrode one end being in contact with human external skin due to area more very much not
It can skin ambustion.If directly by contre electrode needle 1X in the prior art and around surrounding's electrode of contre electrode needle 1X distributions
The size of needle 2X reduces, and electrode both ends difference can be caused too big, damage electrode occurs, electrode coking, is not easy when taking out and group
Knit situations such as disengaging is to damage non-lesion tissue.
Specifically, referring to Fig. 3, the front end of the electrode assembly 1 is step structure, at the front end of the electrode assembly 1
The central electrode 101, the insulating layer 102 and the outer electrode 103 are exposed to the outside of the outer protective sleeve 104.
Make electrode assembly 1 enter human body when, directly by 1 front end of electrode assembly expose central electrode 101 and outer electrode 103 with
Wait for that the tissue of RF ablation is contacted.The central electrode 101, the insulating layer 102, the outer electrode 103 and institute
The length for stating outer protective sleeve 104 is sequentially reduced, and the central electrode 101, the insulating layer 102, the outer electrode 103
And one end alignment setting of the outer protective sleeve 104.
The diameter of the central electrode 101 can be 0.1-0.2mm, and central electrode 101 is stainless steel bar, is had good
Electric conductivity and hardness.Correspondingly, outer electrode 103 is also stainless steel, is hollow stainless-steel tubing pillar, the outer electrode
103 internal diameter can be 0.16-0.26mm, and wall thickness can be 0.05-0.07 mm.Central electrode 101 and outer electrode 103 it
Between be isolated by insulating layer 102, insulating layer 102 can be polyimide plastic, as hollow polyimide plastic
The internal diameter of pipe, insulating layer 102 can be 0.12-0.22mm, and wall thickness can be 0.012-0.014mm.In addition, being located at outermost layer
Outer protective sleeve 104 or polyimide plastic, as hollow polyimide plastic pipe, play insulation and protection in
The internal diameter of the effect of portion's electrode, the outer protective sleeve 104 can be 0.3-0.35mm, and wall thickness can be 0.014-0.016 mm.
As a preferred embodiment, a diameter of 0.1mm of the central electrode 101, the internal diameter of the insulating layer 102 are
0.13mm, wall thickness can be 0.012mm, and the internal diameter of the outer electrode 103 is 0.18mm, wall thickness 0.06mm, the outer layer
The internal diameter of sheath 104 is 0.34mm, wall thickness 0.015mm.The electrode assembly 1 that maximum gauge is 0.355mm is formed, it can not only
Cavity (such as breast duct, lacrimal passage, salivary gland etc.) into a diameter of 0.4mm of inside of human body or so carries out radiofrequency ablation therapy,
It is 0.4mm reservoir channels that endoscope diameter, which can also be entered, is inserted into lesion under endoscope direct-view, moreover it is possible to reserve space and not hinder
The normal structure of evil body cavities, and make the entrance such as remaining Medical Devices.
Referring to Fig. 2, described device further includes：Pillar 3 between the electrode assembly 1 and the plug 2, it is described
Electrode assembly 1 is connect by the conducting wire in pillar 3 with the plug 2.Central electrode 101 in electrode assembly 1 and outer layer
Electrode 103 is by conducting wire, the realization of plug 2 and power supply etc. for the connection of electric installation.Pillar 3 plays protection bare electrode and conducting wire
Effect.The pillar 3 is connect by connecting sleeve 4 with the outer protective sleeve 104 of the electrode assembly 1, connecting sleeve 4 and pillar
3 contact position is bonded by epoxy glue.
Second aspect, the utility model embodiment provide a kind of radio frequency ablation system, and the system comprises described above
Radio frequency ablation electrode device, and the radio frequency generator 5 that is connect with the radio frequency ablation electrode device, the radio frequency occur
Device 5 includes battery.
By the way that the plug 2 in radio frequency ablation electrode device described above to be connect with radio frequency generator 5, radio frequency is utilized
Battery in generating means 5 is powered for radio frequency ablation electrode device, is powered for it using battery, voltage is low, output power
It is small, electrode damage knot caused by avoiding instantaneous output excessively high when powering for radio frequency ablation electrode device described above
Coke, situations such as being not easy to be detached to damage non-lesion tissue with tissue when taking out, and using more when passing through battery powered
Safety.
Specifically, the battery can be rechargeable battery, as lithium battery.Referring to Fig. 4, the radio frequency generator 5
Further include that RF electrode assemblies interface 501, battery charging interface 502, charging indicator light 503, discharge indicating lamp 504, radio frequency are defeated
Go out indicator light 505, radio frequency output control button 506.Wherein RF electrode assemblies interface 501 with radio frequency described above for disappearing
The plug 2 melted in electrode assembly connects, and is the battery in radio frequency generator 5 by battery charging interface 502 before the use
Charging, charging terminate, and charging indicator light 503 extinguishes, and open radio frequency and export control button 506, discharge indicating lamp 504 and radio frequency are defeated
Go out indicator light 505 to open, radio-frequency current is provided for radio frequency ablation electrode device.
Further, the length, width and height of the radio frequency generator 5 are respectively 100mm, 50mm, 30mm, which fills
Set 5 small volume.It can hold, be operated convenient for user in use.
The third aspect, the utility model provide a kind of endoscope, and the endoscope includes RF ablation described above
Electrode assembly.
Referring to Fig. 5 and Fig. 6, the endoscope include work telescope 6, the reservoir channel 7 in the work telescope 6 with
And endoscope image guide bundles 8 make work telescope 6 enter inside of human body, pass through endoscope image guide bundles during using endoscope
After 8 observe patient part, the electrode assembly 1 of radio frequency ablation electrode device described above is stretched into from the reservoir channel 7
Then the endoscope realizes that inside of human body tissue is visible in endoscope, i.e., can be by electrode under endoscope direct-view
Component 1 is precisely inserted into pathological tissues, and radiofrequency ablation therapy is carried out to it.
Fourth aspect, the utility model provide a kind of endoscope, and the endoscope includes RF ablation described above
System.
Referring to Fig. 5 and Fig. 6, the endoscope include work telescope 6, the reservoir channel 7 in the work telescope 6 with
And endoscope image guide bundles 8 make work telescope 6 enter inside of human body, pass through endoscope image guide bundles during using endoscope
After 8 observe patient part, the electrode assembly 1 of radio frequency ablation electrode device described above is stretched into from the reservoir channel 7
Then the endoscope realizes that inside of human body tissue is visible in endoscope, i.e., can be by electrode under endoscope direct-view
Component 1 is precisely inserted into pathological tissues, and radiofrequency ablation therapy is carried out to it.
The alternative embodiment that any combination forms the disclosure may be used, herein no longer in above-mentioned all optional technical solutions
It repeats one by one.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of radio frequency ablation electrode device, which is characterized in that described device includes：Electrode assembly (1) and the electrode assembly
(1) plug (2) connected；
The electrode assembly (1) includes：Central electrode (101), the insulating layer (102) being sheathed on the central electrode (101),
The outer electrode (103) being sheathed on the insulating layer (102) and the outer layer being sheathed on the outer electrode (103) shield
It covers (104),
The outer diameter of the outer protective sleeve (104) is less than 0.4mm, and the central electrode (101) and the outer electrode (103) are used for
With wait for RF ablation location contacts.
2. the apparatus according to claim 1, which is characterized in that the front end of the electrode assembly (1) is step structure, described
The central electrode (101), the insulating layer (102) and the outer electrode (103) at the front end of electrode assembly (1) is sudden and violent
It is exposed to the outside of the outer protective sleeve (104).
3. the apparatus of claim 2, which is characterized in that the central electrode (101), the insulating layer (102), institute
The length for stating outer electrode (103) and the outer protective sleeve (104) is sequentially reduced, and the central electrode (101), described
One end alignment setting of insulating layer (102), the outer electrode (103) and the outer protective sleeve (104).
4. the apparatus according to claim 1, which is characterized in that a diameter of 0.1-0.2mm of the central electrode (101).
5. the apparatus according to claim 1, which is characterized in that the internal diameter of the insulating layer (102) is 0.12-0.22mm,
Wall thickness is 0.012-0.014mm.
6. the apparatus according to claim 1, which is characterized in that the internal diameter of the outer electrode (103) is 0.16-
0.26mm, wall thickness 0.05-0.07mm.
7. the apparatus according to claim 1, which is characterized in that the internal diameter of the outer protective sleeve (104) is 0.3-0.35mm,
Wall thickness is 0.014-0.016mm.
8. the apparatus according to claim 1, which is characterized in that described device further includes：Positioned at the electrode assembly (1) with
Pillar (3) between the plug (2), the electrode assembly (1) pass through the conducting wire that is located in pillar (3) and the plug (2)
Connection.
9. device according to claim 8, which is characterized in that the pillar (3) passes through connecting sleeve (4) and the electrode
The outer protective sleeve (104) of component (1) connects.
10. a kind of endoscope, which is characterized in that the endoscope includes the RF ablation described in any one of claim 1-9
Electrode assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720707958.3U CN207804370U (en) | 2017-06-16 | 2017-06-16 | A kind of radio frequency ablation electrode device, endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720707958.3U CN207804370U (en) | 2017-06-16 | 2017-06-16 | A kind of radio frequency ablation electrode device, endoscope |
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| Publication Number | Publication Date |
|---|---|
| CN207804370U true CN207804370U (en) | 2018-09-04 |
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ID=63336362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720707958.3U Active CN207804370U (en) | 2017-06-16 | 2017-06-16 | A kind of radio frequency ablation electrode device, endoscope |
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| CN (1) | CN207804370U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110151301A (en) * | 2019-05-18 | 2019-08-23 | 杭州睿笛生物科技有限公司 | A kind of electric pulse ablatograph for endoscope |
| CN110269678A (en) * | 2019-07-18 | 2019-09-24 | 上海交通大学医学院附属第九人民医院 | A kind of decorative sursery Bipolar plasmakinetic procedures electrode |
-
2017
- 2017-06-16 CN CN201720707958.3U patent/CN207804370U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110151301A (en) * | 2019-05-18 | 2019-08-23 | 杭州睿笛生物科技有限公司 | A kind of electric pulse ablatograph for endoscope |
| WO2020232851A1 (en) * | 2019-05-18 | 2020-11-26 | 杭州睿笛生物科技有限公司 | Electric pulse ablation instrument for use in endoscope |
| CN110269678A (en) * | 2019-07-18 | 2019-09-24 | 上海交通大学医学院附属第九人民医院 | A kind of decorative sursery Bipolar plasmakinetic procedures electrode |
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