CN103519889A - Radiofrequency ablation electrode assembly with double umbrella-shaped probe layers - Google Patents
Radiofrequency ablation electrode assembly with double umbrella-shaped probe layers Download PDFInfo
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- CN103519889A CN103519889A CN201310470492.6A CN201310470492A CN103519889A CN 103519889 A CN103519889 A CN 103519889A CN 201310470492 A CN201310470492 A CN 201310470492A CN 103519889 A CN103519889 A CN 103519889A
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Abstract
The invention relates to a radiofrequency ablation electrode assembly with double umbrella-shaped probe layers. The radiofrequency ablation electrode assembly is characterized by comprising a temperature measuring tube and a casing tube. The temperature measuring tube is sleeved with the casing tube. The head portion of the temperature measuring tube is in the shape of a needle tip. The head portion of the temperature measuring tube and a first umbrella-shaped probe set are fixed and fastened in a welding mode through a first fastening tube. The section, at back of the first probe set, of a probe tube is coated with an insulating material layer. The exterior of the insulating material layer and a second probe set are fixedly connected and fastened in a welding mode through a second fastening tube. The first probe set, the human body and the second probe set form a radiofrequency current loop. When the radiofrequency ablation electrode assembly is used, the temperature measuring tube is ejected out from the head portion of the casing tube, and the first probe set and the second probe set are unfolded to be in an umbrella shape.
Description
Technical field
The present invention relates to a kind of radio-frequency ablation electrode, specifically, is a kind of radio frequency ablation electrode device of double-deck umbrella shape probe, belongs to technical field of medical instruments.
Background technology
The radio frequency of radio-frequency (RF) ablation is that a kind of frequency reaches the dither of tens0000 times per second.Human body is by many organic labyrinths that form with inorganic substances, contains a large amount of electrolytes in body fluid, and as ion, water, colloidal particles etc., human body mainly relies on ionic transfer conductive electric current.Under the effect of high-frequency alternating current, the concentration change direction of ion is that positive-negative half-cycle comes and goes variation with the sense of current.Under the higher-order of oscillation, the ion between two electrodes, along electric lines of force direction rapid movement, gradually becomes vibrational state by mobile status.Because size, quality, electric charge and the translational speed of various ions are different, Ion Phase attrition is wiped and is collided and produce biological heat effect with other microgranule.Due to tumor weak heat-dissipating, make tumor tissues temperature higher than its normal adjacent tissue, add that cancerous cell is thermo-responsive to height, high heat energy is killed cancerous cell, and side effect does not occur.Therefore, radio-frequency (RF) ablation has determined curative effect, damages slight advantage, is increasingly widely used in oncotherapy at present.
Open day is on November 23rd, 2011, application number is 201120079822.5, name is called the Chinese utility model patent of " liver neoplasm treatment tower-type multi-layer probe radio frequency ablation electrode device ", a kind of radio frequency ablation electrode device is disclosed, this radio frequency ablation electrode device adopts the probe structure of multilayer-tower, the effect of the probe structure of this multilayer-tower is to provide larger probe and opens scope, carries out contacting of the degree of depth with tumor.But, because radio-frequency (RF) ablation need to form current loop, use this radio-frequency ablation electrode also to need there is specific negative plate, radio-frequency (RF) energy is by the such current loop of electrode-human body-negative plate.
This need support the use the radio-frequency ablation electrode of negative plate, to having relatively high expectations of corollary equipment, and use inconvenience, and negative plate pad is also uncomfortable below human body.
Summary of the invention
The technical issues that need to address of the present invention are: existing radio-frequency ablation electrode, need support the use the radio-frequency ablation electrode of negative plate, and to having relatively high expectations of corollary equipment, and use inconveniently, negative plate pad is also uncomfortable below human body.
The present invention takes following technical scheme:
A radio frequency ablation electrode device for double-deck umbrella shape probe, comprises temperature tube 7, sleeve pipe 5, and described sleeve pipe 5 is enclosed within temperature tube 7 outsides; Described temperature tube 7 heads are tip-like, and first group of probe 8 of its head and umbrella shape is welded and fixed, and use the first fastener tube 10 and first group of probe 8 to weld fastening; In the outside of one section of probe tube 7 at first group of probe 8 rear portion, apply insulation material layer, the outside of described insulation material layer is fixedly connected with second group of probe 9 of umbrella shape, and uses the second fastener tube 11 and second group of probe 9 to weld fastening; When radio-frequency (RF) energy is passed through, between first group of probe, human body, second group of probe, form current loop; When described radio frequency ablation electrode device is not used, temperature tube 7, first group of probe 8, second group of probe 9 shrink in sleeve pipe 5 inside; When described radio frequency ablation electrode device is used, temperature tube 7 ejects from sleeve pipe 5 heads, and first group of probe 8, second group of probe 9 strut and be umbrella shape.
The feature of the technical program is: the version that has adopted double-deck umbrella shape probe, simultaneously, again by insulation material layer is set, make to form and insulate between first group of probe and second group of probe, thereby make radio-frequency (RF) energy by series connection mutually between first group of probe, human body, second group of probe, form current loop, without negative plate.
Further, described radio frequency ablation electrode device afterbody is provided with socket (4), and described first group of probe 8 is also connected with socket 4 by wire, and described second group of probe 9 is also connected with socket 4 by wire.
Further, in described temperature tube 7, be provided with temperature sensor, by described temperature sensor, carry out thermometric.
Further, described first group of probe 8 is identical with shape, the size of second group of probe 9.
Further, also comprise front bar 1, described front bar 1 is fixedly connected with sleeve pipe 5 rear ends, and described front bar 1 is provided with medicine-pouring port 1a, and described medicine-pouring port 1a is communicated with sleeve pipe 5.
Beneficial effect of the present invention is:
1) without supporting the use negative plate, corollary equipment is required to decrease, patient is also more comfortable.
2) radio frequency ablation electrode device use is easier, is not subject to the restriction of fixing device during use.
3) probe that is arranged so that of double-deck umbrella shape probe more fully contacts with human body, the better effects if of radio-frequency (RF) ablation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the radio frequency ablation electrode device introduced in background technology.
Fig. 2 is the rear structure schematic diagram of radio frequency ablation electrode device of the present invention.
Fig. 3 is the structural representation of sleeve pipe and temperature tube, and casing pipe sleeve is in the outside of temperature tube.
Fig. 4 is the head construction schematic diagram of radio frequency ablation electrode device of the present invention.
In figure, 1, front bar, 1a, medicine-pouring port, 2, hand lever, 3, handle, 4, socket, 5, sleeve pipe, 6, medicine-pouring port plug, 7, temperature tube, 8, first groups of probes, 9, second groups of probes, the 10, first fastener tube, the 11, second fastener tube.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is further described.
Referring to Fig. 2, the radio frequency ablation electrode device of double-deck umbrella shape probe of the present invention comprises front bar 1, hand lever 2, handle 3, socket 4, the structures such as sleeve pipe 5.
Referring to Fig. 3, temperature tube 7 is for to be through the long tube in sleeve pipe 5, and its head is tip-like, and inside is provided with temperature sensor (thermocouple), for thermometric.
Referring to Fig. 4, temperature tube 7 heads are tip-like, and first group of probe 8 of its head and umbrella shape is welded and fixed, and use the first fastener tube 10 and first group of probe 8 to weld fastening; In the outside of one section of probe tube 7 at first group of probe 8 rear portion, apply insulation material layer, the outside of insulation material layer is fixedly connected with second group of probe 9 of umbrella shape, and uses the second fastener tube 11 and second group of probe 9 to weld fastening;
Referring to Fig. 2-Fig. 4, socket 4 is connected with external power supply in the lump, and first group of probe 8 is connected with socket 4 by wire, and second group of probe 9 is also connected with socket 4 by wire.When radio-frequency (RF) energy is passed through, between first group of probe, human body, second group of probe, form current loop;
Described first group of probe 8 is identical with shape, the size of second group of probe 9.
Also comprise front bar 1, described front bar 1 is fixedly connected with sleeve pipe 5 rear ends, and described front bar 1 is provided with medicine-pouring port 1a, and described medicine-pouring port 1a is communicated with sleeve pipe 5.
When described radio frequency ablation electrode device is not used, temperature tube 7, first group of probe 8, second group of probe 9 shrink in sleeve pipe 5 inside; When described radio frequency ablation electrode device is used, temperature tube 7 ejects from sleeve pipe 5 heads, and first group of probe 8, second group of probe 9 strut and be umbrella shape, and medicine-pouring port 1a injects medicinal liquid, and medicinal liquid is along in sleeve pipe 5 injection human bodies.
The present invention has adopted the version of double-deck umbrella shape probe, meanwhile, and by insulation material layer is set, make to form and insulate between first group of probe and second group of probe, thereby by series connection mutually between first group of probe, human body, second group of probe and accumulator, form current loop, without negative plate.
Claims (5)
1. a radio frequency ablation electrode device for double-deck umbrella shape probe, is characterized in that:
Comprise temperature tube (7), sleeve pipe (5), described sleeve pipe (5) is enclosed within temperature tube (7) outside;
Described temperature tube (7) head is tip-like, and first group of probe (8) of its head and umbrella shape is welded and fixed, and uses the first fastener tube (10) and first group of probe (8) to weld fastening;
Outside at one section of probe tube (7) at first group of probe (8) rear portion, apply insulation material layer, the outside of described insulation material layer is fixedly connected with second group of probe (9) of umbrella shape, and uses the second fastener tube (11) and second group of probe (9) to weld fastening;
When radio-frequency (RF) energy is passed through, between first group of probe, human body, second group of probe, form current loop;
When described radio frequency ablation electrode device is not used, temperature tube (7), first group of probe (8), second group of probe (9) shrink in sleeve pipe (5) inside; When described radio frequency ablation electrode device is used, temperature tube (7) ejects from sleeve pipe (5) head, and first group of probe (8), second group of probe (9) strut and be umbrella shape.
2. radio frequency ablation electrode device as claimed in claim 1, it is characterized in that: described radio frequency ablation electrode device afterbody is provided with socket (4), described first group of probe (8) is also connected with socket (4) by wire, and described second group of probe (9) is also connected with socket (4) by wire.
3. radio frequency ablation electrode device as claimed in claim 1, is characterized in that: described temperature tube is provided with temperature sensor in (7), by described temperature sensor, carries out thermometric.
4. radio frequency ablation electrode device as claimed in claim 1, is characterized in that: described first group of probe (8) is identical with shape, the size of second group of probe (9).
5. radio frequency ablation electrode device as claimed in claim 1, it is characterized in that: also comprise that the described front bar of front bar (1) (1) is fixedly connected with sleeve pipe (5) rear end, described front bar (1) is provided with medicine-pouring port (1a), and described medicine-pouring port (1a) is communicated with sleeve pipe (5).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470492.6A CN103519889B (en) | 2013-10-10 | 2013-10-10 | A kind of radio frequency ablation electrode device of double-deck umbrella-shaped probes |
| PCT/CN2014/000880 WO2015051594A1 (en) | 2013-10-10 | 2014-09-28 | Radio-frequency ablation electrode device with double-layer umbrella-shaped probes |
| US15/028,422 US20160249977A1 (en) | 2013-10-10 | 2014-09-28 | Radiofrequency ablation electrode device having double-layered umbrella-shaped probes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310470492.6A CN103519889B (en) | 2013-10-10 | 2013-10-10 | A kind of radio frequency ablation electrode device of double-deck umbrella-shaped probes |
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| CN103519889A true CN103519889A (en) | 2014-01-22 |
| CN103519889B CN103519889B (en) | 2016-02-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015051594A1 (en) * | 2013-10-10 | 2015-04-16 | 迈德医疗科技（上海）有限公司 | Radio-frequency ablation electrode device with double-layer umbrella-shaped probes |
| CN105455897A (en) * | 2015-12-30 | 2016-04-06 | 迈德医疗科技（上海）有限公司 | Flexible radiofrequency ablation electrode |
| CN106236254A (en) * | 2016-08-31 | 2016-12-21 | 迈德医疗科技（上海）有限公司 | Radio frequency ablation electrode device |
| CN106852705A (en) * | 2015-12-09 | 2017-06-16 | 韦伯斯特生物官能(以色列)有限公司 | The many umbrella width electrode catheters of binode |
| CN109259856A (en) * | 2018-09-12 | 2019-01-25 | 中国科学院理化技术研究所 | Radio frequency heating probe unit and radio frequency ablation device |
| US11135004B2 (en) | 2018-12-24 | 2021-10-05 | Industrial Technology Research Institute | Ablation device |
| CN113749759A (en) * | 2021-10-20 | 2021-12-07 | 杭州维纳安可医疗科技有限责任公司 | Pulse generating device for irreversible electroporation, method and system thereof |
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| CN203493738U (en) * | 2013-10-10 | 2014-03-26 | 迈德医疗科技（上海）有限公司 | Double-layer umbrella-shaped probe type radiofrequency ablation electrode device |
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2013
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| US7670337B2 (en) * | 2005-03-25 | 2010-03-02 | Boston Scientific Scimed, Inc. | Ablation probe having a plurality of arrays of electrodes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015051594A1 (en) * | 2013-10-10 | 2015-04-16 | 迈德医疗科技（上海）有限公司 | Radio-frequency ablation electrode device with double-layer umbrella-shaped probes |
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| CN105455897A (en) * | 2015-12-30 | 2016-04-06 | 迈德医疗科技（上海）有限公司 | Flexible radiofrequency ablation electrode |
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| US11135004B2 (en) | 2018-12-24 | 2021-10-05 | Industrial Technology Research Institute | Ablation device |
| CN113749759A (en) * | 2021-10-20 | 2021-12-07 | 杭州维纳安可医疗科技有限责任公司 | Pulse generating device for irreversible electroporation, method and system thereof |
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