CN101066229A - RF tumor treating equipment - Google Patents
RF tumor treating equipment Download PDFInfo
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- CN101066229A CN101066229A CN 200710108336 CN200710108336A CN101066229A CN 101066229 A CN101066229 A CN 101066229A CN 200710108336 CN200710108336 CN 200710108336 CN 200710108336 A CN200710108336 A CN 200710108336A CN 101066229 A CN101066229 A CN 101066229A
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- 206010028980 Neoplasm Diseases 0.000 title claims abstract description 30
- 230000001225 therapeutic effect Effects 0.000 claims description 22
- 230000005669 field effect Effects 0.000 claims description 12
- 238000011282 treatment Methods 0.000 claims description 12
- 230000001143 conditioned effect Effects 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 238000002560 therapeutic procedure Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 230000002572 peristaltic effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 210000004881 tumor cell Anatomy 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 206010027336 Menstruation delayed Diseases 0.000 description 1
- 206010028851 Necrosis Diseases 0.000 description 1
- 208000001435 Thromboembolism Diseases 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000002512 chemotherapy Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000011369 optimal treatment Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 210000002307 prostate Anatomy 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000001959 radiotherapy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The RF tumor treating equipment as one kind of tumor treating medical equipment includes one RF source comprising one controller, one data processor, one RF power amplifier and one display; and treating electrodes connected to the RF power amplifier. The controller has output connected through control line to the input of the RF power amplifier, and control end connected through control lines to the inputs of display and the data processor. The RF power amplifier has output connected to the data processor and the treating electrodes, and the data processor is connected through data lines to the controller and the display bidirectionally. The present invention has excellent treating effect.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, especially a kind of medical apparatus and instruments that is used for the treatment of tumor, specifically a kind of RF tumor treating equipment.
Background technology
At present, tumor, especially malignant tumor becomes first killer of health of people again, this operative treatment is considered to one of optimal treatment method, but just must take other Therapeutic Method for some late periods and physical qualification difference be not suitable for the undergoing surgery patient of treatment, as methods such as radiotherapy, chemotherapy, freezing, ethanol thromboembolisms, but form the characteristic of mechanism and tumor cell according to tumor, will be dead automatically when tumor cell is subjected to being higher than the temperature of body temperature certain value, people have invented the various instrument and equipments that heat to treat tumor for this reason.Show after deliberation, not only heats is good with radiothermics, and penetration power is strong, it is a kind of comparatively ideal tumor treatment equipment, general radio-frequency therapeutic equipment is made up of radio frequency source, cool-tip electrode and peristaltic pump, and key wherein is a radio frequency source, it is the heart component of radio-frequency therapeutic equipment, and according to the knowledge of the applicant, still not having at present a kind of ideal radio frequency source that is used for the treatment of tumor can be for selecting for use, therefore influenced the application of radio-frequency therapeutic equipment in treatment tumor, especially treating malignant tumor greatly.
Summary of the invention
The purpose of this invention is to provide a kind of RF tumor treating equipment that tumor is badly in need of that is used for the treatment of.
Technical scheme of the present invention is:
A kind of RF tumor treating equipment, comprise radio frequency source, it is characterized in that described radio frequency source is by controller 1, data processor 2, rf power amplifier 3 and display 4 are formed, rf power amplifier 3 is connected with therapeutic electrode 5, one tunnel output of controller 1 links to each other by the input of control line with rf power amplifier 3, output of rf power amplifier 3 power and therapeutic electrode 5, its control output links to each other with data processor 2, data processor 2 is by data wire and controller 1 and 4 two-way connections of display, and the control end of controller 1 links to each other with the corresponding display 4 and the control end of data processor 2 respectively by control line.
Described controller 1 is by single-chip microcomputer U19, memory under program U11, data memory U12, latch U23, U25, I/O expanded circuit U8, driver U26,27 constitute, the end data line of latch U23 links to each other with the data wire of single-chip microcomputer U19, the data wire of latch U25 connects the address wire of single-chip microcomputer U19, the data wire of I/O expanded circuit U8 connects the data wire of single-chip microcomputer U19, its control signal by by or the door U21, the gate circuit that NAND gate U13 and phase inverter U14 constitute meets the correspondence control output signal end of single-chip microcomputer U19, driver U26, the input of U27 connects the corresponding outfan of single-chip microcomputer U19; The data wire of controller 1 is drawn respectively from the other end data wire of latch U23 and is linked to each other with the data wire of data processor 2 is two-way with display 4, the data processing and control line of controller 1 is drawn the control input end that connects data processor 2 from driver U26,27 outfan, the radio-frequency (RF) power amplification control line of controller 1 is drawn the control input end that connects rf power amplifier 3 from the outfan of I/O expanded circuit U8, and the shows signal control line of controller 1 is drawn the control input end that connects display from the outfan of latch U25.
Described data processor 2 is by channel selecting IC 1, operational amplifier IC5, analog-digital conversion ic IC14, date processing integrated circuit M1, M3, M2 constitutes, the signal output of channel selecting IC 1 connects the signal input of analog-digital conversion ic IC14 by operational amplifier IC5, the channel selecting outfan of the channel selecting input termination date processing integrated circuit M3 of channel selecting IC 1, date processing integrated circuit M1, M2, the I/O port of M3 is corresponding separately to link to each other, finish the collection and the storage of all sampled signals, to offer controller 1, the data wire of data processor 2 is from date processing integrated circuit M1, the data port of M2 is drawn the data wire that connects controller 1, it is the other end data wire of latch U23, the data processing and control line of data processor 2 is from the I/O port I07 of date processing integrated circuit M1, it is latch U25 that I011 draws the corresponding control output end that connects controller, the corresponding outfan of driver U26, the input end of analog signal of data processor 2 are drawn the control signal output ends that connects rf power amplifier 3 from the input of channel selecting IC 1.
Described rf power amplifier 3 mainly includes by pulse width modulator V1, driver V2, field effect transistor Q1, Q3, inductance L 2, diode D1, D3, the voltage conditioned circuit that capacitor C 5 constitutes and by driver V3, field effect transistor Q6-Q11, the intermediate frequency that crystal oscillator X1 constitutes produces circuit and reaches by transformator T1, T2, impedance matching network Z1, Z2, the electric current and voltage output circuit that Z3 constitutes, it is field effect pipe Q7 that the output voltage E1 of voltage conditioned circuit draws the input that connects intermediate frequency generation circuit from diode D1 change poles, Q8, the drain electrode of Q9, it is the elementary of transformator T1 that the output that intermediate frequency produces circuit is drawn the input that connects the electric current and voltage output circuit by impedance matching circuit from the drain electrode of field effect transistor Q11, the control input end of rf power amplifier 3 produces the circuit gate array integration V4 input 7 feet from pulse width modulator V1 input 2 feet of voltage conditioned circuit button and intermediate frequency and draws two corresponding outfans that the radio-frequency (RF) power amplification control line that connects controller 1 is I/O expanded circuit U8, the electric current of rf power amplifier 3, the voltage detection signal outfan is the secondary of transformator T2 and impedance matching network Z1 from two outfans of electric current and voltage output circuit respectively, Z2, the junction point of Z3 is drawn input S7 foot and the S2 foot that the input end of analog signal that connects data processor 2 is a channel selecting IC 1, elementary the drawing by interface socket V6 of the transformator T1 of the intermediate frequency therapy voltage of rf power amplifier 3 from its electric current and voltage output circuit connects therapeutic electrode 5, provides the treatment voltage and current to therapeutic electrode 5.
Described display 4 is made of data pipe DG1-DG13 and drive circuit Y1, Y2, Y3, each signal output of drive circuit Y1, Y2, Y3 connects each corresponding input of data pipe DG1-DG13, the data wire ID0-ID7 of drive circuit Y1, Y2, Y3 is that the other end data wire of latch U23 links to each other as the data wire of display 4 and controller 1 data wire, and the demonstration control line of display 4 is drawn the corresponding outfan that the shows signal control line that connects controller 1 is driver U27 from control end 8,9 feet of drive circuit Y1, Y2, Y3.
The present invention has the following advantages:
The invention solves market in urgent need, the apparats for treating tumor made from its is applicable to the deactivation of organizing of various entity tumors, is a kind of new Minimally Invasive Surgery, and it has, and wound is little, complication is few, spends cheaply, and therapeutic effect is not less than the advantage of operative treatment.Match with existing cool-tip electrode and peristaltic pump and also to have flexible configuration, the advantage that result of use is good.
The present invention can be used for treating entity tumors such as liver and gall, lung, kidney, prostate, bone.On probation through the prison bed, for the tumor of diameter less than 5 centimetres, its therapeutic effect is identical with traditional open surgery, but reductions greatly such as patient's mortality rate, complication rate, length of stay, medical expense are welcome by the patient deeply.
Description of drawings
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is the electrical schematic diagram of controller of the present invention.
Fig. 3 is the electrical schematic diagram of data processor of the present invention.
Fig. 4 is the electrical schematic diagram of rf power amplifier of the present invention.
The electrical schematic diagram of Fig. 5 display of the present invention.
The specific embodiment
The present invention is further illustrated for following structure drawings and Examples.
Shown in Fig. 1～5.
A kind of RF tumor treating equipment, mainly by radio frequency source, therapeutic electrode, the peristaltic pump grade becomes, wherein therapeutic electrode and peristaltic pump can adopt prior art to be realized, its annexation can be referring to relevant service manual, and as the radio frequency source of the key of RF tumor treating equipment by controller 1, data processor 2, rf power amplifier 3 and display 4 are formed, rf power amplifier 3 is connected with therapeutic electrode 5, one tunnel output of controller 1 links to each other by the input of control line with rf power amplifier 3, rf power amplifier 3 outputs link to each other with data processor 2 and therapeutic electrode 5, data processor 2 is by data wire and controller 1 and 4 two-way connections of display, the control end of controller 1 links to each other with the control end of corresponding display 4 and data processor 2 respectively by control line, as shown in Figure 1.
Described controller 1 is by single-chip microcomputer U19 (model can be 8018), memory under program U11 (model can be 27256), data memory U12 (model can be 62256), latch U23, U25 (model can be 74HC245), I/O expanded circuit U8 (model can be 82C55), driver U26,27 (model can be 74HC243) constitute, the end data line of latch U23 links to each other with the data wire of single-chip microcomputer U19, the data wire of latch U25 connects the address wire of single-chip microcomputer U19, the data wire of I/O expanded circuit U8 connects the data wire of single-chip microcomputer U19, its control signal by by or the door U21, the gate circuit that NAND gate U13 and phase inverter U14 constitute meets the correspondence control output signal end of single-chip microcomputer U19, driver U26, the input of U27 connects the corresponding outfan of single-chip microcomputer U19; The data wire of controller 1 is drawn respectively from the other end data wire of latch U23 and is linked to each other with the data wire of data processor 2 is two-way with display 4, the data processing and control line of controller 1 is drawn the control input end that connects data processor 2 from driver U26,27 outfan, the radio-frequency (RF) power amplification control line of controller 1 is drawn the control input end that connects rf power amplifier 3 from the outfan of I/O expanded circuit U8, and the shows signal control line of controller 1 is drawn the control input end that connects display from the outfan of latch U23.As shown in Figure 2.
Described data processor 2 is by channel selecting IC 1 (model can be ADG506), operational amplifier IC5, analog-digital conversion ic IC14 (model can be ADC700), date processing integrated circuit M1, M3 (model can be MACH210), M2 (model can be SDT7130) constitutes, the signal output of channel selecting IC 1 connects the signal input of analog-digital conversion ic IC14 by operational amplifier IC5, the channel selecting outfan of the channel selecting input termination date processing integrated circuit M3 of channel selecting IC 1, date processing integrated circuit M1, M2, the I/O port of M3 is corresponding separately to link to each other, finish the collection and the storage of all sampled signals, to offer controller 1, the data wire of data processor 2 is from date processing integrated circuit M1, the data port of M2 is drawn the data wire that connects controller 1, it is the other end data wire of latch U23, the data processing and control line of data processor 2 is from the I/O port I07 of date processing integrated circuit M1, it is latch U25 that I011 draws the corresponding control output end that connects controller, the corresponding outfan of driver U26, the input end of analog signal of data processor 2 are drawn the control signal output ends that connects rf power amplifier 3 from the input of channel selecting IC 1.As shown in Figure 3.
Described rf power amplifier 3 mainly includes by pulse width modulator V1 (model can be UC3524), driver V2 (model can be IR2110), field effect transistor Q1, Q3, inductance L 2, diode D1, D3, the voltage conditioned circuit that capacitor C 5 constitutes and by driver V3 (model can be CEI20V10), field effect transistor Q6-Q11, the intermediate frequency that crystal oscillator X1 (producing the 960kHz frequency signal) constitutes produces circuit and reaches by transformator T1, T2, impedance matching network Z1, Z2, the electric current and voltage output circuit that Z3 constitutes, it is field effect pipe Q7 that the output voltage E1 of voltage conditioned circuit draws the input that connects intermediate frequency generation circuit from diode D1 change poles, Q8, the drain electrode of Q9, it is the elementary of transformator T1 that the output that intermediate frequency produces circuit is drawn the input that connects the electric current and voltage output circuit by impedance matching circuit from the drain electrode of field effect transistor Q11, the control input end of rf power amplifier 3 produces the circuit gate array integration V4 input 7 feet from pulse width modulator V1 input 2 feet of voltage conditioned circuit button and intermediate frequency and draws two corresponding outfans that the radio-frequency (RF) power amplification control line that connects controller 1 is I/O expanded circuit U8, the electric current of rf power amplifier 3, the voltage detection signal outfan is the secondary of transformator T2 and impedance matching network Z1 from two outfans of electric current and voltage output circuit respectively, Z2, the junction point of Z3 is drawn input S7 foot and the S2 foot that the input end of analog signal that connects data processor 2 is a channel selecting IC 1, elementary the drawing by interface socket V6 of the transformator T1 of the intermediate frequency therapy voltage of rf power amplifier 3 from its electric current and voltage output circuit connects therapeutic electrode 5, provides the treatment voltage and current to therapeutic electrode 5.As shown in Figure 4.
Described display 4 is made of data pipe DG1～DG13 and drive circuit Y1, Y2, Y3 (model can be ICM7218), each signal output of drive circuit Y1, Y2, Y3 connects each corresponding input of data pipe DG1～DG13, the data wire ID0-ID7 of drive circuit Y1, Y2, Y3 is that the other end data wire of latch U23 links to each other as the data wire of display 4 and controller 1 data wire, and the demonstration control line of display 4 is drawn the corresponding outfan that the shows signal control line that connects controller 1 is driver U27 from control end 8,9 feet of drive circuit Y1, Y2, Y3.As shown in Figure 5.
Operation principle of the present invention is:
At first by the image-guided percutaneous puncture, endoscope or open surgery approach insert electrode in the tumor composition, exchange radio-frequency current and form emission towards periphery from the end of therapeutic electrode (can adopt cool-tip electrode), along with the change of the sense of current causes the vibration of local organization intermediate ion, frictional heat (being called the resistance heat production again), local temperature increases (reaching as high as about 100 ℃) makes tumor form the generation coagulation necrosis, reaches therapeutic purposes thereby directly kill tumor cell.The exportable radio-frequency power up to 100 watts of radio circuit continues to monitor the size of resistance, radio-frequency current and the radio-frequency power of tumor tissues, and they are presented on the panel; Cool-tip electrode (being therapeutic electrode) sends high-frequency energy to tumor tissues, and its temperature is raise until reaching heating ablation; Peristaltic pump is the cooling water cool-tip electrode of constantly flowing through, and makes electrode be unlikely to overheated and affects the treatment.
Claims (5)
1, a kind of RF tumor treating equipment, comprise radio frequency source, it is characterized in that described radio frequency source is by controller (1), data processor (2), rf power amplifier (3) and display (4) are formed, rf power amplifier (3) is connected with therapeutic electrode (5), one tunnel output of controller (1) links to each other by the input of control line with rf power amplifier (3), output of rf power amplifier (3) power and therapeutic electrode (5), its control output links to each other with data processor (2), data processor (2) is by data wire and controller (1) and two-way connection of display (4), and the control end of controller (1) links to each other with the corresponding display (4) and the control end of data processor (2) respectively by control line.
2, RF tumor treating equipment according to claim 1, it is characterized in that described controller (1) is by single-chip microcomputer U19, memory under program U11, data memory U12, latch U23, U25, I/O expanded circuit U8, driver U26,27 constitute, the end data line of latch U23 links to each other with the data wire of single-chip microcomputer U19, the data wire of latch U25 connects the address wire of single-chip microcomputer U19, the data wire of I/O expanded circuit U8 connects the data wire of single-chip microcomputer U19, its control signal by by or the door U21, the gate circuit that NAND gate U13 and phase inverter U14 constitute meets the correspondence control output signal end of single-chip microcomputer U19, driver U26, the input of U27 connects the corresponding outfan of single-chip microcomputer U19; The data wire of controller (1) is drawn respectively two-way linking to each other of data wire with display (4) and data processor (2) from the other end data wire of latch U23, the data processing and control line of controller (1) is drawn the control input end that connects data processor (2) from driver U26,27 outfan, the radio-frequency (RF) power amplification control line of controller (1) is drawn the control input end that connects rf power amplifier (3) from the outfan of I/O expanded circuit U8, and the shows signal control line of controller (1) is drawn the control input end that connects display from the outfan of latch U23.
3, RF tumor treating equipment according to claim 1, it is characterized in that described data processor (2) is by channel selecting IC 1, operational amplifier IC5, analog-digital conversion ic IC14, date processing integrated circuit M1, M3, M2 constitutes, the signal output of channel selecting IC 1 connects the signal input of analog-digital conversion ic IC14 by operational amplifier IC5, the channel selecting outfan of the channel selecting input termination date processing integrated circuit M3 of channel selecting IC 1, date processing integrated circuit M1, M2, the I/O port of M3 is corresponding separately to link to each other, finish the collection and the storage of all sampled signals, to offer controller (1), the data wire of data processor (2) is from date processing integrated circuit M1, the data port of M2 is drawn the data wire that connects controller (1), it is the other end data wire of latch U23, the data processing and control line of data processor (2) is from the I/O port I07 of date processing integrated circuit M1, it is latch U25 that I011 draws the corresponding control output end that connects controller, the corresponding outfan of driver U26, the input end of analog signal of data processor (2) is drawn the control signal output ends that connects rf power amplifier (3) from the input of channel selecting IC 1.
4, RF tumor treating equipment according to claim 1, it is characterized in that described rf power amplifier (3) mainly includes by pulse width modulator V1, driver V2, field effect transistor Q1, Q3, inductance L 2, diode D1, D3, the voltage conditioned circuit that capacitor C 5 constitutes and by driver V3, field effect transistor Q6-Q11, the intermediate frequency that crystal oscillator X1 constitutes produces circuit and reaches by transformator T1, T2, impedance matching network Z1, Z2, the electric current and voltage output circuit that Z3 constitutes, it is field effect pipe Q7 that the output voltage E1 of voltage conditioned circuit draws the input that connects intermediate frequency generation circuit from diode D1 change poles, Q8, the drain electrode of Q9, it is the elementary of transformator T1 that the output that intermediate frequency produces circuit is drawn the input that connects the electric current and voltage output circuit by impedance matching circuit from the drain electrode of field effect transistor Q11, the control input end of rf power amplifier (3) produces the circuit gate array integration V4 input 7 feet from pulse width modulator V1 input 2 feet of voltage conditioned circuit button and intermediate frequency and draws two corresponding outfans that the radio-frequency (RF) power amplification control line that connects controller (1) is I/O expanded circuit U8, the electric current of rf power amplifier (3), the voltage detection signal outfan is the secondary of transformator T2 and impedance matching network Z1 from two outfans of electric current and voltage output circuit respectively, Z2, the junction point of Z3 is drawn input S7 foot and the S2 foot that the input end of analog signal that connects data processor (2) is a channel selecting IC 1, elementary the drawing by interface socket V6 of the transformator T1 of the intermediate frequency therapy voltage of rf power amplifier (3) from its electric current and voltage output circuit connects therapeutic electrode (5), provides the treatment voltage and current to therapeutic electrode (5).
5, RF tumor treating equipment according to claim 1, it is characterized in that described display (4) is by data pipe DG1-DG13 and drive circuit Y1, Y2, Y3 constitutes, drive circuit Y1, Y2, each signal output of Y3 connects each corresponding input of data pipe DG1-DG13, drive circuit Y1, Y2, the data wire ID0-ID7 of Y3 is that the other end data wire of latch U23 links to each other as the data wire of display (4) and controller (1) data wire, and the demonstration control line of display (4) is from drive circuit Y1, Y2, the control end 8 of Y3,9 feet are drawn the corresponding outfan that the shows signal control line that connects controller (1) is driver U27.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710108336XA CN100457060C (en) | 2006-05-19 | 2007-05-18 | RF tumor treating equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620071506 | 2006-05-19 | ||
| CN200620071506.2 | 2006-05-19 | ||
| CNB200710108336XA CN100457060C (en) | 2006-05-19 | 2007-05-18 | RF tumor treating equipment |
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| Publication Number | Publication Date |
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| CN101066229A true CN101066229A (en) | 2007-11-07 |
| CN100457060C CN100457060C (en) | 2009-02-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619615A (en) * | 2017-03-16 | 2018-10-09 | 天津市舒沥通医疗器械科技有限公司 | A kind of model electrochemical hyperplasia of prostate treating apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163627Y (en) * | 1993-04-22 | 1994-05-04 | 郑然� | Portable radio-frequency thermotherapeutic instrument |
| US5599345A (en) * | 1993-11-08 | 1997-02-04 | Zomed International, Inc. | RF treatment apparatus |
| CN1296014C (en) * | 2004-06-17 | 2007-01-24 | 上海交通大学 | Water-cooled radio frequency system for tumour extinguishing |
| CN1305445C (en) * | 2004-07-22 | 2007-03-21 | 上海交通大学 | Power generating and monitoring circuit of radio frequency melting therapeutic system |
| US7553309B2 (en) * | 2004-10-08 | 2009-06-30 | Covidien Ag | Electrosurgical system employing multiple electrodes and method thereof |
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2007
- 2007-05-18 CN CNB200710108336XA patent/CN100457060C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619615A (en) * | 2017-03-16 | 2018-10-09 | 天津市舒沥通医疗器械科技有限公司 | A kind of model electrochemical hyperplasia of prostate treating apparatus |
| CN108619615B (en) * | 2017-03-16 | 2023-02-24 | 天津市舒沥通医疗器械科技有限公司 | Electrochemical therapeutic apparatus for prostatic hyperplasia |
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| CN100457060C (en) | 2009-02-04 |
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