CN203647465U - Radiofrequency ablation electrode - Google Patents
Radiofrequency ablation electrode Download PDFInfo
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- CN203647465U CN203647465U CN201320822153.5U CN201320822153U CN203647465U CN 203647465 U CN203647465 U CN 203647465U CN 201320822153 U CN201320822153 U CN 201320822153U CN 203647465 U CN203647465 U CN 203647465U
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- electrode
- utmost point
- polar conductor
- radio
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- 238000007674 radiofrequency ablation Methods 0.000 title claims abstract description 34
- 239000004020 conductor Substances 0.000 claims description 62
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 229920002313 fluoropolymer Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 206010028980 Neoplasm Diseases 0.000 abstract description 15
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000011282 treatment Methods 0.000 abstract description 4
- 238000011298 ablation treatment Methods 0.000 abstract 1
- 238000002679 ablation Methods 0.000 description 18
- 238000005452 bending Methods 0.000 description 16
- 230000005405 multipole Effects 0.000 description 4
- 229920006332 epoxy adhesive Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 210000004185 liver Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 210000004881 tumor cell Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003445 biliary tract Anatomy 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Abstract
The utility model discloses a radiofrequency ablation electrode and belongs to the field of medical instruments. According to the radiofrequency ablation electrode, a front pole wire and a rear pole wire are of no-electricity connection and are arranged in an insulating hose, a front pole electrode and a rear pole electrode are of no-electricity connection and are arranged outside the insulating hose, the front pole electrode is electrically connected with front pole wire, and the rear pole electrode is electrically connected with the rear pole wire. After energization, a loop is formed between the front pole electrode and the rear pole electrode and the human tissue, high-frequency alternating currents are generated and converted into heat energy, and therefore the purpose of tumor ablation treatment can be achieved; due to the insulating hose, the radiofrequency ablation electrode has the advantages of being flexible, smooth, and easy to push in the curved cavity, and can enter the tiny curved cavity of the human body directly or by means of an intervention catheter or an endoscope to carry out tumor treatment.
Description
Technical field
This utility model relates to medical instruments field, particularly a kind of radio-frequency ablation electrode.
Background technology
RFA(Radiofrequency Ablation, radio-frequency ablation procedure) serial multi-pole rf ablating electrode is a kind of auxiliary electrode of RFA multi-pole rf tumour ablation system, is usually used in the treatment field of the position such as liver, lung tumor.In use, by this series electrode is connected on multi-pole rf tumour ablation treating instrument, and make eletrode tip enter tissue, and between electrode and tissue, forming loop and form high-frequency alternating electric current, the heat energy that utilizes this alternating current to change into reaches and kills tumor cell.
At present, RFA series multi-pole rf ablating electrode is many by contre electrode pin, surround electrode pin (sub-pin), the guide pin that stainless steel tube is processed into, guide pin seat, medicine-pouring port, front fixed handle, sliding handle, rail plate, rear fixed handle, the part such as cable and plug composition, when the guide pin of this electrode does not insert tumor, be positioned at the contre electrode pin of electrode front end, the contracting of surround electrode pin is in the needle tubing inside of guide pin, sliding handle and rail plate are all arranged on the rear fixed handle that is positioned at electrode rear end, when the guide pin of this electrode inserts after tumor, promote sliding handle according to tumor size and drive rail plate, the contre electrode pin and the surround electrode pin that are positioned at electrode front end are inserted into tumor surrounding, and utilize high-frequency alternating electric current to produce heat energy, kill tumor cell, its ablation range can reach 6cm.
Realizing in process of the present utility model, inventor finds that prior art at least exists following problem:
Existing radio-frequency ablation electrode is general all for the ablation of the entity tumor such as liver, pulmonary, puncture and be directly inserted into therapentic part by broken skin, the guide pin shank of its insertion is processed by rigid stainless steel tube, cannot enter (for example, the tiny tract such as human body biliary tract, blood vessel, lymphatic vessel, latex dust, bronchus) in the tract of human body bending and carry out the treatment of tumor.
Utility model content
Cannot be used for the problem of oncotherapy in bending tract in order to solve prior art radio-frequency ablation electrode, this utility model embodiment provides a kind of radio-frequency ablation electrode.Described technical scheme is as follows:
This utility model provides a kind of radio-frequency ablation electrode, described radio-frequency ablation electrode comprises the handle portion with plug connecting in turn, joint sleeve and electrode part, described electrode part comprises: front utmost point electrode, front polar conductor, flexible insulated hose, rear utmost point electrode and rear polar conductor, described front polar conductor and described rear polar conductor are all arranged on described flexible insulated hose inside, described front utmost point electrode and described rear utmost point electrode are all arranged on described flexible insulated hose outside, described front utmost point electrode is electrically connected with described front polar conductor, described rear utmost point electrode is electrically connected with described rear polar conductor, described front polar conductor and described rear polar conductor are all successively through described flexible insulated hose, described joint sleeve and described handle portion, and be electrically connected with described plug.
Particularly, as preferably, described electrode part also comprises conducting element, and described conducting element is arranged between described front utmost point electrode and described front polar conductor, and described front utmost point electrode is electrically connected with described front polar conductor by described conducting element.
Particularly, as preferably, described conducting element is electrode tip, and described front polar conductor is connected to the inside, hole of described electrode tip, and described front utmost point electrode is connected to the outside of described electrode tip.
Particularly, as preferably, described electrode part also comprises insulated sleeve, and described insulated sleeve is sleeved on described front polar conductor.
Particularly, as preferably, the material of described insulated sleeve and flexible insulated hose is selected from fluoroplastics, polyethylene or rubber.
Particularly, as preferably, described front utmost point electrode and described rear utmost point electrode are annular electrode, and described annular electrode is sleeved on described flexible insulated hose outside.
Particularly, as preferably, the cross-sectional diameter scope of described annular electrode is 0.2-1.5mm
The beneficial effect that the technical scheme that this utility model embodiment provides is brought is:
The radio-frequency (RF) ablation flexible electrode that this utility model embodiment provides, by front polar conductor and rear polar conductor are arranged on to flexible insulated hose inside, front utmost point electrode and rear utmost point electrode are arranged on to described flexible insulated hose outside, and front utmost point electrode is electrically connected with front polar conductor, rear utmost point electrode is electrically connected with rear polar conductor, make this radio-frequency (RF) ablation flexible electrode in use, between front utmost point electrode, rear utmost point electrode and tissue, form loop, after energising, produce high-frequency alternating electric current and be converted into heat energy, thereby reaching the object of tumour ablation treating; The use of flexible insulated hose, makes this electrode have advantages of softness, in bending tract, easily advance, and makes it can directly enter the tract of human body bending, or carries out oncotherapy by the tract that interposing catheter or endoscope path way enter human body bending.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in this utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only this some embodiment, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the radio-frequency ablation electrode that provides of this utility model embodiment;
Fig. 2 is the electrode part structural representation of the radio-frequency ablation electrode that provides of the another embodiment of this utility model;
Fig. 3 is the front utmost point electrode structure schematic diagram of the radio-frequency ablation electrode that provides of the another embodiment of this utility model;
Fig. 4 is the rear utmost point electrode structure schematic diagram of the radio-frequency ablation electrode that provides of the another embodiment of this utility model.
Wherein, 1 electrode part,
2 joint sleeves,
3 pyrocondensation pillars,
4 plugs,
11 front utmost point electrodes,
12 front polar conductors,
13 rear utmost point electrodes,
14 rear polar conductors,
15 flexible insulated hoses,
16 conducting elements,
17 insulated sleeve.
Detailed description of the invention
For making this object, technical scheme and advantage clearer, below in conjunction with accompanying drawing, present embodiment is described in further detail.
This utility model embodiment provides a kind of radio-frequency ablation electrode, the structural representation of described radio-frequency ablation electrode as shown in Figure 1, also visible accompanying drawing 2, described radio-frequency ablation electrode comprises the handle portion with plug 4, the joint sleeve 2 being connected with handle portion, the electrode part 1 being connected with joint sleeve 2.Described electrode part 1 comprises: front utmost point electrode 11, front polar conductor 12, flexible insulated hose 15, rear utmost point electrode 13 and rear polar conductor 14, described front polar conductor 12 is all arranged on described flexible insulated hose 15 inside with described rear polar conductor 14, and between described front polar conductor 12 and described rear polar conductor 14, nothing is electrically connected, described front utmost point electrode 11 is all arranged on described flexible insulated hose 15 outsides with described rear utmost point electrode 13, and between described front utmost point electrode 11 and described rear utmost point electrode 13, nothing is electrically connected, described front utmost point electrode 11 is electrically connected with described front polar conductor 12, described rear utmost point electrode 13 is electrically connected with described rear polar conductor 14, described front polar conductor and described rear polar conductor are all successively through described flexible insulated hose, described joint sleeve and described handle portion, and be electrically connected with described plug.
The radio-frequency (RF) ablation flexible electrode that this utility model embodiment provides, by front polar conductor 12 is arranged on to flexible insulated hose 15 inside with rear polar conductor 14, front utmost point electrode 11 is arranged on to described flexible insulated hose 15 outsides with rear utmost point electrode 13, and front utmost point electrode 11 is electrically connected with front polar conductor 12, rear utmost point electrode 13 is electrically connected with rear polar conductor 14, make this radio-frequency (RF) ablation flexible electrode in use, front utmost point electrode 11, between rear utmost point electrode 13 and tissue, form loop, after energising, produce high-frequency alternating electric current and be converted into heat energy, thereby reach the object of tumour ablation treating, the use of flexible insulated hose, make this electrode have advantages of softness, smooth, in bending tract, easily advance, make it can directly enter the tract of human body bending, or carry out oncotherapy by the tract that interposing catheter or endoscope path way enter human body bending.
This electrode also comprises pyrocondensation pillar 3, the handle portion of these pyrocondensation pillar 3 coated these electrodes, and be connected and fixed with joint sleeve 2.As preferably, all bonding by epoxy glue between the electrode part of joint sleeve 2 and this electrode and pyrocondensation pillar 3.Be described in detail with regard to the electrode part 1 of this electrode below.
The radio-frequency ablation electrode that this utility model provides makes flexible insulated hose 15 as its outer surface, and the material of this flexible insulated hose 15 is selected from fluoroplastics, polyethylene or rubber, the radio-frequency ablation electrode that giving this utility model embodiment provides not only has softness, smooth, the advantage easily advancing in bending tract, make it can directly enter the tract of human body bending, or enter the tract of human body bending by interposing catheter or endoscope path way, and it is heat-resisting that this electrode is had, cold-resistant, drug-resistant, resistance to solvent, insulating properties and high-frequency electrical performance excellence, and there is not withered property, the advantages such as low frictional factor.
Particularly, front polar conductor 12 and rear polar conductor 14 are incorporated into pyrocondensation pillar 3 inside of this electrode in the inside of flexible insulated hose 15, and are electrically connected with plug 4, thereby this electrode is electrically connected with ablation system equipment by plug 4, for ablation.As shown in Figure 3, as preferably, use insulated sleeve 17 to be sleeved on front polar conductor 12, for preventing being electrically connected between front polar conductor 12 and rear polar conductor 14.The material of this insulated sleeve 17 is selected from fluoroplastics, polyethylene or rubber, thereby make it have heat-resisting, cold-resistant, drug-resistant, resistance to solvent, insulating properties and high-frequency electrical performance excellence and there is the advantages such as not withered property, low frictional factor, increasing practicality and the ruggedness of this electrode.
Front utmost point electrode 11 is all arranged on flexible insulated hose 15 outsides with rear utmost point electrode 13, and between front utmost point electrode and rear utmost point electrode, nothing is electrically connected; Particularly, front utmost point electrode 11 and rear utmost point electrode 13 are all arranged on the front position of the electrode part 1 of this radio-frequency ablation electrode.As shown in Figure 3, also can participate in accompanying drawing 4, this front utmost point electrode 11 is annular electrode (front utmost point annular electrode 11 and rear utmost point annular electrode 13) with this rear utmost point electrode 13, and this front utmost point annular electrode 11 is all coated on flexible insulated hose 15 outsides with rear utmost point annular electrode 13, more specifically, this front utmost point annular electrode 11 is all connected on flexible insulated hose 15 outer surfaces by Wear Characteristics of Epoxy Adhesive with rear utmost point annular electrode 13.
The cross-sectional diameter scope of this annular electrode is 0.2-1.5mm, according to the demand of practical application (concrete tract requires the diameter demand reaching), the diameter of this radio-frequency (RF) ablation flexible electrode can be 0.2mm, 0.3mm, 0.5mm, 0.7mm, 0.9mm, 1.0mm, 1.2mm, 1.3mm, 1.4mm or 1.5mm, thereby this radio-frequency (RF) ablation flexible electrode can directly be entered in the bending tract that human body is tiny, or enter by interposing catheter or endoscope path way the bending tract that human body is tiny, thereby while having solved the ablation of the tumor in the tiny bending tract of human body, the inaccessiable problem of rigid electrode.
As shown in Figure 3, this radio-frequency ablation electrode also comprises conducting element 16, and this conducting element 16 is arranged between front utmost point electrode 11 and front polar conductor 12, and front utmost point electrode 11 is electrically connected with front polar conductor 12 by conducting element 16.For example, described conducting element 16 is electrode tip (electrode tip 16).For example, by front polar conductor 12 is welded in the hole of electrode tip 16, then front utmost point annular electrode 11 is enclosed within on electrode tip 16 and firm welding, front polar conductor 12 with insulated sleeve 17 is penetrated in flexible insulated hose 15, and by front utmost point annular electrode 11 by Wear Characteristics of Epoxy Adhesive at flexible insulated hose 15 outer surfaces.
Similarly, between rear utmost point electrode 13 and rear polar conductor 14, also exist and be electrically connected.As shown in Figure 4, by rear polar conductor 14 is welded on rear utmost point annular electrode 13, rear polar conductor 14 penetrates from the opening of flexible insulated hose 15, locates postpone rear utmost point annular electrode 13 is connected on to flexible insulated hose 15 outer surfaces by Wear Characteristics of Epoxy Adhesive.
Visible, the radio-frequency ablation electrode that this utility model embodiment provides, by the front polar conductor without electrical connection 12 and rear polar conductor 14 are arranged on to flexible insulated hose 15 inside, front utmost point electrode without electrical connection 11 and rear utmost point electrode 13 are all arranged on to described flexible insulated hose 15 outsides, and front utmost point electrode 11 is electrically connected with front polar conductor 12, rear utmost point electrode 13 is electrically connected with rear polar conductor 14, prepares the radio-frequency (RF) ablation flexible electrode that this electrode maximum cross section diameter range is 0.2-1.5mm.Under being guided by B ultrasonic or CT, this radio-frequency (RF) ablation flexible electrode (also can under endoscope monitoring, enter body cavities through endoscopic instrument passage) in interposing catheter enters the bending tract that human body is tiny, rest on patient part, after energising, two electrodes form loop by front polar conductor and rear polar conductor with conductive tissue (tissue) or conducting liquid around respectively, produce high-frequency alternating electric current, patient part is organized the higher-order of oscillation, and be heat energy by electric energy conversion, patient part tissue temperature raises, and reaches the object of tumor deactivation.
The radio-frequency ablation electrode that this utility model embodiment provides can use in the tiny bending tract of human body, carries out radiofrequency ablation therapy tumor, is a kind of Minimally Invasive Surgery, and wound is little, patient is short recovery time.The difficult problem visible, this utility model has solved rigid electrode and cannot enter the tiny tract of human body, has expanded the application of radio-frequency (RF) ablation equipment, is the disease treatment of clinician to the tiny tract of human body, and a kind of new, simple Therapeutic Method is provided.
The foregoing is only this preferred embodiment, in order to restriction this, all within this spirit and principle, any amendment of doing, be equal to replacements, improvement etc., within all should being included in protection domain originally.
Claims (7)
1. a radio-frequency ablation electrode, it is characterized in that, comprise the handle portion with plug connecting in turn, joint sleeve and electrode part, described electrode part comprises: front utmost point electrode, front polar conductor, flexible insulated hose, rear utmost point electrode and rear polar conductor, described front polar conductor and described rear polar conductor are all arranged on described flexible insulated hose inside, described front utmost point electrode and described rear utmost point electrode are all arranged on described flexible insulated hose outside, described front utmost point electrode is electrically connected with described front polar conductor, described rear utmost point electrode is electrically connected with described rear polar conductor, described front polar conductor and described rear polar conductor are all successively through described flexible insulated hose, described joint sleeve and described handle portion, and be electrically connected with described plug.
2. radio-frequency ablation electrode according to claim 1, it is characterized in that, described electrode part also comprises conducting element, and described conducting element is arranged between described front utmost point electrode and described front polar conductor, and described front utmost point electrode is electrically connected with described front polar conductor by described conducting element.
3. radio-frequency ablation electrode according to claim 2, is characterized in that, described conducting element is electrode tip, and described front polar conductor is connected to the inside, hole of described electrode tip, and described front utmost point electrode is connected to the outside of described electrode tip.
4. radio-frequency ablation electrode according to claim 1, is characterized in that, described electrode part also comprises insulated sleeve, and described insulated sleeve is sleeved on described front polar conductor.
5. radio-frequency ablation electrode according to claim 4, is characterized in that, the material of described insulated sleeve and flexible insulated hose is selected from fluoroplastics, polyethylene or rubber.
6. according to the radio-frequency ablation electrode described in claim 1-5 any one, it is characterized in that, described front utmost point electrode and described rear utmost point electrode are annular electrode, and described annular electrode is sleeved on described flexible insulated hose outside.
7. radio-frequency ablation electrode according to claim 6, is characterized in that, the cross-sectional diameter scope of described annular electrode is 0.2-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320822153.5U CN203647465U (en) | 2013-12-12 | 2013-12-12 | Radiofrequency ablation electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320822153.5U CN203647465U (en) | 2013-12-12 | 2013-12-12 | Radiofrequency ablation electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203647465U true CN203647465U (en) | 2014-06-18 |
Family
ID=50913911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320822153.5U Expired - Lifetime CN203647465U (en) | 2013-12-12 | 2013-12-12 | Radiofrequency ablation electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203647465U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107647908A (en) * | 2017-10-30 | 2018-02-02 | 珠海康弘发展有限公司 | A kind of intelligent RF electrode |
| CN110151300A (en) * | 2019-05-17 | 2019-08-23 | 杭州睿笛生物科技有限公司 | It is a kind of can cooperativing medicine-feeding electric pulse ablating device |
| CN114533255A (en) * | 2022-01-17 | 2022-05-27 | 安隽医疗科技(南京)有限公司 | Bipolar through radio frequency ablation catheter system |
-
2013
- 2013-12-12 CN CN201320822153.5U patent/CN203647465U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107647908A (en) * | 2017-10-30 | 2018-02-02 | 珠海康弘发展有限公司 | A kind of intelligent RF electrode |
| CN107647908B (en) * | 2017-10-30 | 2023-12-12 | 珠海康弘发展有限公司 | Intelligent radio frequency electrode |
| CN110151300A (en) * | 2019-05-17 | 2019-08-23 | 杭州睿笛生物科技有限公司 | It is a kind of can cooperativing medicine-feeding electric pulse ablating device |
| CN114533255A (en) * | 2022-01-17 | 2022-05-27 | 安隽医疗科技(南京)有限公司 | Bipolar through radio frequency ablation catheter system |
| CN114533255B (en) * | 2022-01-17 | 2023-11-17 | 安隽医疗科技(南京)有限公司 | Bipolar straight-through radio frequency ablation catheter system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |