CN104510532A - Conformal radio frequency ablation electrode - Google Patents
Conformal radio frequency ablation electrode Download PDFInfo
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- CN104510532A CN104510532A CN201310456599.5A CN201310456599A CN104510532A CN 104510532 A CN104510532 A CN 104510532A CN 201310456599 A CN201310456599 A CN 201310456599A CN 104510532 A CN104510532 A CN 104510532A
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- frequency ablation
- ablation electrode
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Abstract
The invention discloses a conformal radio frequency ablation electrode. The electrode comprises a plurality of secondary needles, a main needle, a needle rod, a handle, an injection opening, a connecting cable and an electric plug; the plurality of secondary pins are divided into two groups or three groups, and the secondary needles in each group can be individually stretched or retracted; all secondary needles are in an umbrella shape after being stretched; insulating layers are arranged at the near ends of the stretched parts of the secondary needles, and while the far ends of the stretched parts of the secondary needles are conductive, and therefore, a cake-shaped coagulation necrosis area can be generated by one-time ablation, wherein the maximum diameter of the cake is up to 9cm; with the adoption of the ablation electrode, large tumor and tumor of irregular can be subjected to single-hole, single-needle-channel and edge enhancement and conformal radio frequency ablation; a temperature sensor is mounted on the point end of each secondary needle and can be used for monitoring the temperature of the edge of each ablation area on real time, so as to provide a reliable basis for postoperative curative effect; medicine pouring pores are formed in the point ends of the secondary needles and can be used for injecting medicine liquid during ablation treatment; therefore, the boundary of tumor can be subjected to enhanced ablation.
Description
Technical field
The present invention relates to a kind of radio-frequency ablation electrode, particularly relate to a kind of conformal radio-frequency ablation electrode being used for treating solid organ tumor.Adopt this ablating electrode can carry out single hole, single needle road, border enhancing and conformal radio-frequency (RF) ablation to large tumor, tumor in irregular shape.
Technical background
The kind of current radio-frequency ablation electrode is a lot, has single needle cool-tip electrode, the bundling electrode that three single needle cool-tip electrodes are formed, and many pieces of sub-pins launch the ablating electrode forming " umbrella shape " simultaneously.The shape that all these electrode singles melt the coagulation necrosis district of generation is spherical or elliposoidal, and diameter is 3-5 centimetre; To diameter be greater than 5 centimetres, tumor in irregular shape has to adopt Mutiple Targets, spininess road radio-frequency (RF) ablation, therefore operating time is long, the easy omission of tumor boundaries tissue.
Use single to melt the ablating electrode producing spherical or elliposoidal coagulation necrosis district, shank must, by the centre of sphere of zone of ablation, therefore require high to Needle localization, and the time needed for usual Needle localization is longer than the time of ablation a lot.
Conformal radio-frequency ablation electrode of the present invention, can to diameter be greater than 5 centimetres, tumor in irregular shape carry out single hole, single needle road, border strengthen, conformal radio-frequency (RF) ablation; And require low to puncture technique, because the size launched by often organizing sub-pin remedies puncture error.
Summary of the invention
The present invention relates to a kind of conformal radio-frequency ablation electrode, this electrode is made up of many pieces of sub-pins, female pin, shank, handle, injection nozzle, connection cord and plug.Many pieces of sub-pins are divided into two groups or three groups, and often organizing sub-pin can launch respectively or regain.The near-end of all sub-pin deploying portion scribbles insulating barrier, and far-end is conduction; When carrying out ablation, radio-frequency power energy concentration of transmissions, to the edge (sub-focal zone) of tumor, can reach border and strengthen the function melted.
There is medicine-pouring hole at the tip of sub-pin, injectable normal saline while carrying out radio-frequency (RF) ablation, and ablation range can not only be made to increase, and ring can reach border and strengthen the effect melted.
The structural design of ablating electrode handle is important content of the present invention, many pieces of sub-pins are divided into two groups or three groups, often organize the proximal wind of sub-pin in a garden jaggy ring outer rim (outer rim of annulus can have groove), when group pin launches in shank, for preventing sub-pin group from annulus outer rim (in groove) distending, garden ring is wound with a spring.Spring-compressed when sub-pin group is launched, spring elongates when sub-pin group is regained.
The present invention devises a seed pin guide slit structure, and sub-pin guide slit refers to the gap be made up of the tail end of female pin and the far-end of shank, and it is evenly distributed after sub-pin can not only be made to open, and the puncture strength of energy enhancer pin.
Below in conjunction with the principle of the conformal radio-frequency ablation electrode of accompanying drawing 1-12 detailed description, structure and
Detailed description of the invention:
Accompanying drawing explanation
Fig. 1 pin is divided into the conformal radio-frequency ablation electrode outline drawing of two groups
Fig. 2 pin is divided into the conformal radio-frequency ablation electrode outline drawing of three groups
Fig. 3 pin guide slit and insulating coating
Fig. 4 aluminum ring, sub-pin bundle and spring assembly figure
Fig. 5 pin group is launched and is regained drives structure figure
Fig. 6 pin is divided into the conformal radio-frequency ablation electrode cut-away view of two groups
Fig. 7 pin is divided into the conformal radio-frequency ablation electrode handle profile figure of three groups
The conformal radio-frequency ablation electrode of Fig. 8 pin guide slit structure principle chart
Fig. 9 pin is divided into the conformal radio-frequency ablation electrode handle lower casing figure of two groups
Shell figure on the conformal radio-frequency ablation electrode handle that the sub-pin of Figure 10 is divided into two groups
Figure 11 conformal radio-frequency ablation electrode upper substrate figure
Figure 12 conformal radio-frequency ablation electrode infrabasal plate figure
In all figure, identical label represents identical parts or assembly.In figure the title of labelled corresponding component or assembly as follows:
1 female pin
2 sub-pins
3 shanks
4 sub-pin guide slit
5 liquid injecting mouths
6 handles
7 leader cables
8 plugs
9 guide slit knobs
10 sub-pins launch radius graduated disc
11 pointers
12 operation knobs
13 internal gears
14 garden rings
15 springs
16 bonding pads
17 screws
18 infrabasal plates
19 upper substrates
20 planetary gears
21 sun gears
22 6 square shafts
23 female pin connecting rods
24 braces
25 bent axles
26 temperature-measuring heat couples
27 handle connectors
28 lower casings
Shell on 29
30 needle bar frames
31 transparency covers
Fig. 1 is the conformal radio-frequency ablation electrode outline drawing that sub-pin is divided into two groups; 12 pieces of sub-pins (2) are divided into two groups, and often organizing sub-pin can launch respectively or regain.Two groups of sub-pins (2) are arranged in sub-pin guide slit (4) around after launching completely equably, form " umbrella shape ".Sub-pin guide slit (4) refers to the gap be made up of the far-end of the tail end of female pin (1) and shank (3).Shank (3) has insulating barrier and rule (centimetre), rule is used for measuring the degree of depth of inserting needle.Operation operating grip (6) is oval, there are two graduated discs (10) and pointer (11) in the front of operation operating grip (6), represents the radius (centimetre) after sub-pin (2) expansion of two groups, left and right respectively; The front of operating grip (6) also has a control open/close knob of sub-pin guide slit (9).The reverse side of operating grip (6) has operation knob (12), liquid injecting mouth (5).The leaded cable of near-end (7) of operating grip (6) and plug (8).
Fig. 2 is the conformal radio-frequency ablation electrode outline drawing that sub-pin is divided into three groups; 12 pieces of sub-pins (2) are divided into three groups, and often organizing sub-pin (2) can launch respectively or regain.Operating grip (6) is by one or six prisms and three semicircles " cheese " form, there is sub-pin guide slit knob (9) side of six prisms, a side is equipped with liquid injecting mouth (5).The far-end of six prisms and shank (3) are fixed, and near-end is equipped with leader cable (7) and plug (8).Six prisms have three sides (being separated by 120 degree) to have three semicircles " cake ", are fixed together by handle connector (27) and six prisms.Each semicircle " cake " on sub-pin be housed launch radius graduated disc (10), pointer (11) and operation knob (12).
Fig. 3 is sub-pin guide slit and insulating coating; Sub-pin guide slit (4) refers to the gap be made up of the far-end of the tail end of female pin (1) and shank (3).The most advanced and sophisticated clear portions naked coating of figure neutron pin (2), blackout part has insulating coating; When carrying out ablation, radio-frequency power energy concentration of transmissions, to the edge (sub-focal zone) of tumor, can reach border and strengthen the function melted.
Fig. 4 is aluminum ring, sub-pin group and spring assembly figure; The proximal wind of sub-pin group (2) is in ring (15) outer rim of garden jaggy as seen from the figure.Every piece of sub-pin (2) is all made by capillary tube, temperature-measuring heat couple (26) is equipped with at the tip of sub-pin, the least significant end of sub-pin group (2) is welded on the bonding pad (16) upper (a point) of annulus (14) indentation, there, and the least significant end of sub-pin (2) and annulus (14) and internal gear (13) are fixed together by two screws (17) by the two ends of bonding pad (16).
Annulus (14) outer rim is departed from, annulus (14) upper winding spring (15) when launching for preventing sub-pin group (2).Spring-compressed when sub-pin group (2) is launched, spring elongates during withdrawal.
Annulus (14) is fixed together by two screws (17) except opening part two ends and internal gear (13), other parts of annulus (14) and the outer rim of internal gear (13) have gap, and therefore spring (15) in the upper compression of annulus (14) or can extend.
Fig. 5 is that sub-pin group is launched and regains drives structure figure; As seen from the figure, three planetary gears (20) and a sun gear (21) is had in internal gear (13), the axle of sun gear (21) is six square shafts (22), one end of six square shafts (22) is connected with operation knob, and sun opinion (21) is through in the circular hole of upper and lower substrate (18) with the axle of planetary gear.When rotating sun opinion (21), three planetary gears (20) also rotate, and drive internal gear (13) and annulus (14) to rotate together, thus driven element pin group (2) are launched/regained.
Fig. 6 is the conformal radio-frequency ablation electrode cut-away view that sub-pin is divided into two groups; In handle each side in one group of wheel v as shown in Figure 3 good (14), sub-pin group (2) and spring (15) assembly have been installed; There is also mounted one group of sub-pin group (2) as shown in Figure 4 to launch and the drives structure regained.
Fig. 7 is the conformal radio-frequency ablation electrode handle profile figure that sub-pin is divided into three groups; Six prisms have three sides (being separated by 120 degree) to have three semicircles " cake " as seen from the figure, are fixed together by handle connector (27) and six prisms.Each semicircle " cake " on sub-pin be housed launch radius graduated disc (10), pointer (11) and operation knob (12).One group of annulus (14), sub-pin group (2) and spring (15) assembly has as shown in Figure 3 been installed in each semicircle " cake "; There is also mounted one group of sub-pin group (2) as shown in Figure 4 to launch and the drives structure regained.
Fig. 8 is conformal radio-frequency ablation electrode pin guide slit structure principle chart, the tail end of female pin (1) is connected with the far-end of female pin connecting rod (23) of female pin, near-end and the brace (24) of female pin connecting rod (23) weld together, brace there is a circular hole, a bent axle (25) is had in circular hole, the two ends of bent axle (25) are through in the circular hole of shell (29) and lower casing (28), at upper shell (29) outward, guide slit knob (9) is equipped with in one end of bent axle (25), rotating guide slit knob (9) 180 degree can make female pin connecting rod (23) of female pin move up and down about 1 centimetre, because shank (3) and operating grip are fixed together, therefore gyrator pin guide slit knob (9) 180 degree can make sub-pin guide slit (4) open or close.
Fig. 9 is the conformal radio-frequency ablation electrode handle lower casing figure that sub-pin is divided into two groups; One end of sun wheel shaft is connected with operating grip (12) with hole 2 by figure mesopore 1, one end passing hole 3 of sub-pin guide slit bent axle.
Figure 10 be sub-pin be divided into two groups conformal radio-frequency ablation electrode handle on shell figure; Hole 1 and hole are for installing transparency cover (31) use, the other end passing hole 3 of sub-pin guide slit bent axle.
Figure 11 and Figure 12 is respectively the axle that conformal radio-frequency ablation electrode upper substrate figure and infrabasal plate figure, figure mesopore 1-3 is installed rows star-wheel, and hole 4 is the axle installing sun gear.
Claims (3)
1. the present invention relates to a kind of conformal radio-frequency ablation electrode, this electrode is made up of many pieces of sub-pins, female pin, shank, handle, injection nozzle, connection cord and plug.It is characterized in that, many pieces of sub-pins are divided into two groups or three groups, and often organizing sub-pin can launch respectively or regain.The proximal wind of sub-pin group in the ring outer rim of garden jaggy, annulus is wound around a spring in handle.
2. conformal radio-frequency ablation electrode according to claim 1, is characterized in that, the near-end of all sub-pin deploying portion scribbles insulating barrier, and far-end is conduction.
3. conformal radio-frequency ablation electrode according to claim 1, when all sub-pins launch, all by sub-pin guide slit, sub-pin guide slit refers to the gap that the tail end of female pin and the far-end of shank are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310456599.5A CN104510532A (en) | 2013-09-30 | 2013-09-30 | Conformal radio frequency ablation electrode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310456599.5A CN104510532A (en) | 2013-09-30 | 2013-09-30 | Conformal radio frequency ablation electrode |
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| CN104510532A true CN104510532A (en) | 2015-04-15 |
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| CN201310456599.5A Pending CN104510532A (en) | 2013-09-30 | 2013-09-30 | Conformal radio frequency ablation electrode |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106308927A (en) * | 2016-08-22 | 2017-01-11 | 北京市肿瘤防治研究所 | Multi-tip extension type radiofrequency ablation electrode needle |
| CN107224324A (en) * | 2017-06-30 | 2017-10-03 | 南京律智诚专利技术开发有限公司 | A kind of new array microwave melt needle |
| CN107440785A (en) * | 2016-06-01 | 2017-12-08 | 四川锦江电子科技有限公司 | A kind of absorption type ablation catheter and ablating device |
| CN113116521A (en) * | 2019-12-31 | 2021-07-16 | 杭州堃博生物科技有限公司 | Operation indication method, medium, terminal device and system |
| CN115444551A (en) * | 2022-11-11 | 2022-12-09 | 海杰亚（北京）医疗器械有限公司 | Radio frequency ablation electrode needle |
| CN116616887A (en) * | 2023-04-16 | 2023-08-22 | 王洪奎 | Female stress urinary incontinence radio frequency ablation electrode |
Citations (4)
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|---|---|---|---|---|
| WO1998052480A1 (en) * | 1997-05-19 | 1998-11-26 | Radiotherapeutics Corporation | Apparatus and method for treating tissue with multiple electrodes |
| WO2003026525A1 (en) * | 2001-09-28 | 2003-04-03 | Rita Medical Systems, Inc. | Impedance controlled tissue ablation apparatus and method |
| WO2005087123A1 (en) * | 2004-03-12 | 2005-09-22 | Hongkui Wang | Radio-frequency ablation electrode |
| CN2925405Y (en) * | 2005-12-06 | 2007-07-25 | 王洪奎 | Multi-pin tumor radiofrequency melting electrode |
-
2013
- 2013-09-30 CN CN201310456599.5A patent/CN104510532A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998052480A1 (en) * | 1997-05-19 | 1998-11-26 | Radiotherapeutics Corporation | Apparatus and method for treating tissue with multiple electrodes |
| WO2003026525A1 (en) * | 2001-09-28 | 2003-04-03 | Rita Medical Systems, Inc. | Impedance controlled tissue ablation apparatus and method |
| WO2005087123A1 (en) * | 2004-03-12 | 2005-09-22 | Hongkui Wang | Radio-frequency ablation electrode |
| CN2925405Y (en) * | 2005-12-06 | 2007-07-25 | 王洪奎 | Multi-pin tumor radiofrequency melting electrode |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107440785A (en) * | 2016-06-01 | 2017-12-08 | 四川锦江电子科技有限公司 | A kind of absorption type ablation catheter and ablating device |
| CN107440785B (en) * | 2016-06-01 | 2019-10-18 | 四川锦江电子科技有限公司 | A kind of absorption type ablation catheter and ablating device |
| CN106308927A (en) * | 2016-08-22 | 2017-01-11 | 北京市肿瘤防治研究所 | Multi-tip extension type radiofrequency ablation electrode needle |
| CN107224324A (en) * | 2017-06-30 | 2017-10-03 | 南京律智诚专利技术开发有限公司 | A kind of new array microwave melt needle |
| CN113116521A (en) * | 2019-12-31 | 2021-07-16 | 杭州堃博生物科技有限公司 | Operation indication method, medium, terminal device and system |
| CN115444551A (en) * | 2022-11-11 | 2022-12-09 | 海杰亚（北京）医疗器械有限公司 | Radio frequency ablation electrode needle |
| CN116616887A (en) * | 2023-04-16 | 2023-08-22 | 王洪奎 | Female stress urinary incontinence radio frequency ablation electrode |
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Application publication date: 20150415 |