CN202537652U - Radiofrequency ablation therapeutic equipment for blocking renal artery sympathetic plexus - Google Patents
Radiofrequency ablation therapeutic equipment for blocking renal artery sympathetic plexus Download PDFInfo
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- CN202537652U CN202537652U CN2012200578516U CN201220057851U CN202537652U CN 202537652 U CN202537652 U CN 202537652U CN 2012200578516 U CN2012200578516 U CN 2012200578516U CN 201220057851 U CN201220057851 U CN 201220057851U CN 202537652 U CN202537652 U CN 202537652U
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Abstract
The utility model provides radiofrequency ablation therapeutic equipment for blocking renal artery sympathetic plexus. The equipment can be used for reducing blood pressure by virtue of blocking renal artery sympathetic plexus, so as to realize the treatment for hypertension. The equipment is characterized by comprising an electrode guide tube interface, wherein the electrode guide tube interface is connected with a central controller through a detection circuit; the central controller comprises a signal waveform selection module which is corresponding to a renal artery sympathetic plexus blocking treatment mode; the signal waveform selection module is connected with a signal waveform function generator; the signal waveform function generator is connected with a modulator; the modulator is connected with a frequency oscillator and used for modulating signals input by the frequency oscillator and signals input by the signal waveform function generator into radio frequency modulated waves and then transmitting the radio frequency modulated waves to a power amplifier; and the power amplifier is connected with the central controller through a control circuit and used for transmitting the radio frequency modulated waves subjected to power amplification to the electrode guide tube interface through an output circuit.
Description
Technical field
This utility model relates to RF ablation minimally-invasive treatment device, particularly a kind of radiofrequency ablation therapy equipment that is used to block the renal artery sympathetic plexus.
Background technology
The frequency that RF ablation minimally-invasive treatment device is commonly used is 200～500kHz, output 100～400W.Human body is by many organic labyrinths that constitute with inorganic substances, contains a large amount of electrolytes in the body fluid, and like ion, water, colloidal particles etc., human body mainly relies on ion to move conductive electric current.Under the effect of high-frequency alternating current, ionic concentration change direction 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 gradually becomes vibrational state along electric lines of force direction rapid movement by mobile status.Because various ionic sizes, quality, electric charge and translational speed are different, ion rubs each other and collides with other microgranule and produces the biological heat effect.Radio frequency biological heat effectiveness heats up diseased region, causes the inside and outside water evaporates of cell, drying, pyknosis comes off so that bland necrosis, thereby reaches the purpose of treatment.
The utility model content
This utility model provides a kind of radiofrequency ablation therapy equipment that is used to block the renal artery sympathetic plexus to the defective or the deficiency that exist in the prior art.Can bring high blood pressure down through blocking-up renal artery sympathetic plexus, thereby realize hypertensive treatment.
The technical scheme of this utility model is following:
Be used to block the radiofrequency ablation therapy equipment of renal artery sympathetic plexus; It is characterized in that; Comprise the electrode catheter interface; Said electrode catheter interface connects central controller through testing circuit, and said central controller comprises with the corresponding signal waveform of renal artery sympathetic plexus blocking treatment pattern selects module, and said signal waveform selects module to connect the signal waveform functional generator; Said signal waveform functional generator connects manipulator; Said manipulator connects frequency oscillator and the signal that the signal of frequency oscillator input and said signal waveform functional generator are imported is modulated into the radio frequency modulated wave and is sent to power amplifier, and said power amplifier connects said central controller through control circuit, and the radio frequency modulated wave after the power amplification is sent to said electrode catheter interface through output circuit.
Said central controller connects display, and what said display was used to show central controller output is provided with parameter and monitoring parameter in real time.
Said central controller connects parameter panel is set, and said parameter is provided with panel and is used for importing treatment time, temperature restriction and treatment model selection through button operation to said central controller.
Said output circuit comprises impedance matching circuit, and the impedance setting value is: 4 Ω～300 Ω.
The signal frequency that said frequency oscillator produces is: 200Khz～4Mhz.
Said central controller is controlled the power amplification multiple of said power amplifier through said control circuit, makes that the power of the radio frequency modulated wave after the said power amplification is that increment is adjustable continuously with 0.1 watt between 0.1 watt to 200 watts.
Said electrode catheter interface connection electrode conduit; Not only the radio frequency modulated wave after the power amplification is transferred to the electrode in the electrode catheter; But also receive temperature analog signal and modulus of impedance analog signal from said electrode; And temperature analog signal and modulus of impedance analog signal outputed to testing circuit, said testing circuit exports analogue signal to central controller after analog digital conversion.
The technique effect of this utility model is following: the radiofrequency ablation therapy equipment of this utility model can be used in blocking-up renal artery sympathetic plexus, can bring high blood pressure down through blocking-up renal artery sympathetic plexus, thereby realize hypertensive treatment.
Description of drawings
Fig. 1 is the radiofrequency ablation therapy device structure sketch map that is used to block the renal artery sympathetic plexus.
Labelling is listed as follows among the figure: the 1-frequency oscillator; The 2-manipulator; The 3-power amplifier; The 4-output circuit; 5-electrode catheter interface; The 6-power supply; 7-signal waveform functional generator; The 8-control circuit; The 9-testing circuit; The 10-mode select signal; 11-manually/foot-operated switch; The 12-central controller; The 13-display; The 14-parameter is provided with panel; The corresponding signal waveform of 15-and renal artery sympathetic plexus blocking treatment pattern is selected module.
The specific embodiment
(Fig. 1) describes this utility model below in conjunction with accompanying drawing.
As shown in Figure 1; Be used to block the radiofrequency ablation therapy equipment of renal artery sympathetic plexus; Comprise electrode catheter interface 5; Said electrode catheter interface 5 connects central controller 12 through testing circuit 9; Said central controller 12 comprises with the corresponding signal waveform of renal artery sympathetic plexus blocking treatment pattern selects module 15; Said signal waveform selects module 15 to connect signal waveform functional generators 7, and said signal waveform functional generator 7 connects manipulators 2, and said manipulator 2 connects frequency oscillators 1 and the signal that the signal of frequency oscillator 1 input and said signal waveform functional generator 7 are imported is modulated into the radio frequency modulated wave and is sent to power amplifier 3; Said power amplifier 3 connects said central controller 12 through control circuit 8, and the radio frequency modulated wave after the power amplification is sent to said electrode catheter interface 5 through output circuit 4.Said central controller 12 connects display 13, and what said display 13 was used to show central controller 12 outputs is provided with parameter and monitoring parameter in real time.Said central controller 12 connects parameter panel 14 is set, and said parameter is provided with panel 14 and is used for importing treatment time, temperature restriction and treatment model selection through button operation to said central controller 12.Said output circuit 4 comprises impedance matching circuit, and the impedance setting value is: 4 Ω～300 Ω.The signal frequency that said frequency oscillator 1 produces is: 200Khz～4Mhz.Said central controller 12 is through the power amplification multiple of the said power amplifier 3 of said control circuit 8 controls, makes that the power of the radio frequency modulated wave after the said power amplification is that increment is adjustable continuously with 0.1 watt between 0.1 watt to 200 watts.Said electrode catheter interface 5 connection electrode conduits; Not only the radio frequency modulated wave after the power amplification is transferred to the electrode in the electrode catheter; But also receive temperature analog signal and modulus of impedance analog signal from said electrode; And temperature analog signal and modulus of impedance analog signal outputed to testing circuit 9, said testing circuit 9 exports analogue signal to central controller 12 after analog digital conversion.
RF ablation oriented energy iatrotechnics is a kind of invasive thermal therapeutical technology; Promptly by means of the guiding of image technologies such as X-ray, ultrasonic, scope or CT; Electrode is directly inserted intracavity, make local organization produce intensification, drying, finally solidify and deactivation nervous tissue through RF energy.Its operation principle is: frequency oscillator produces carrier wave and the selected modulating function of panel changes carrier wave through manipulator parameter is set through parameter; Make the Changing Pattern of output signal parameter reflection modulation signal, thereby carried the information of treating required modulation signal, become the radio frequency modulated wave; At last; The radio frequency modulated wave obtains enough power through the power amplifier of central controller controls, is passed to interface through output circuit.Interface connects special electrode catheter, when producing radio-frequency current, is transferred to exposed electrode through conduit and makes polar molecule and ion in its surrounding tissue vibrate, rub, and is converted into heat energy then.Its heat energy is in time gradually to periphery conduction, thereby makes the local organization cell protein that functional variation or irreversible thermocoagulation degeneration, necrosis take place.During this period, supravasal electric physiological electrode is passed bioelectrical signals back interface, amplifies conversion through testing circuit, and the input central controller is more constantly adjusted power amplification with preset.Safety, effective, accurately control instrument output make treatment by predetermined carrying out.Most people soma needs 45 ℃～50 ℃, can make cell death.Because tissue temperature prolongs with the conduction distance and reduces, the tissue temperature that promptly ionization electrode is far away more is low more, and the temperature at electrode and organizational interface place can be chosen in 50 ℃, so that in than the area for treatment of large tracts of land tissue, all can reach 45 ℃.
The function of each several part is following among Fig. 1: power supply 6: required voltage, the electric current of all devices in the instrument is provided.Display 13: what show central controller output is provided with parameter, monitoring parameter (temperature, impedance, time etc.) constantly.Parameter is provided with panel 14: through the button on the panel, input central controllers such as treatment time, maximum temperature, treatment model selections.Frequency oscillator 1: produce the used base frequency of treatment, output to manipulator.Signal waveform functional generator 7: according to the mode select signal 10 from central controller, the selected mode signal of output is given manipulator.Manipulator 2: from the basis signal of frequency oscillator and mode signal, produce the treatment high frequency waves, output to power amplification through amplitude modulation from functional generator.Power amplifier 3: according to the amplification signal that control circuit comes, the treatment high frequency waves that come manipulator carry out power amplification, output to output circuit.Output circuit 4: the signal power amplification comes, carry out exporting interface to behind electrical isolation, the impedance matching.Control circuit 8: the controlled selection signal central controller comes is converted into power amplification multiple signal and exports power amplification to.Electrode catheter interface interface 5: external treatment conduit, export to conduit to high-frequency signal; Reception outputs to testing circuit from analogue signals such as the temperature of conduit, impedances.Testing circuit 9: the analogue signal from interface exports central controller to through analog digital conversion.Central controller 12: receive self-detection circuit, parameter that the signal of panel, manual/foot-operated switch is set.According to the requirement of treatment, select to output to functional generator to function mode respectively, power amplification is selected to output to control circuit, and shows signal outputs to display, and the startup of control machine and stopping.Manually/and foot-operated switch 11: the unlatching of control appliance and stopping.
Be used to block the radiofrequency ablation therapy equipment of renal artery sympathetic plexus, technical parameter is following: frequency: 200Khz～4Mhz; Power: 0.1 watt～200 watts, 0.1 watt of increment is adjustable continuously; Power stability: be superior to 0.1%; Power transmission efficiency: be superior to 75%; Temperature: 40 the degree Celsius～100 the degree Celsius, 0.1 ℃ of accuracy of temperature control; Impedance setting value: 4 Ω～300 Ω; High frequency timing setting value: 1 second～3600 seconds.
Experimental example: the percutaneous femoral arteriography passes through ventral aorta to renal artery; The conduit that will be loaded with electrode earlier is connected to the outfan of RF ablation equipment, and under the direct-view of C type arm cardiovascular X-ray machine, electrode catheter pushes in the renal artery; Electrode catheter pastes blood vessel wall pointwise (4～6 points) and carries out radiofrequency ablation therapy; Treatment time each point 30 seconds～1 minute, adds up to 3 minutes to 6 minutes, accomplish to block the therapeutic process that brings high blood pressure down of kidney sympathetic plexus.
Indicate at this, more than narration helps it will be apparent to those skilled in the art that the invention, but and the protection domain of unrestricted the invention.Any do not break away from the invention flesh and blood to being equal to replacement, modify improving and/or deleting numerous conforming to the principle of simplicity and the enforcement carried out of above narration, all fall into the protection domain of the invention.
Claims (7)
1. be used to block the radiofrequency ablation therapy equipment of renal artery sympathetic plexus; It is characterized in that; Comprise the electrode catheter interface; Said electrode catheter interface connects central controller through testing circuit, and said central controller comprises with the corresponding signal waveform of renal artery sympathetic plexus blocking treatment pattern selects module, and said signal waveform selects module to connect the signal waveform functional generator; Said signal waveform functional generator connects manipulator; Said manipulator connects frequency oscillator and the signal that the signal of frequency oscillator input and said signal waveform functional generator are imported is modulated into the radio frequency modulated wave and is sent to power amplifier, and said power amplifier connects said central controller through control circuit, and the radio frequency modulated wave after the power amplification is sent to said electrode catheter interface through output circuit.
2. the radiofrequency ablation therapy equipment that is used to block the renal artery sympathetic plexus according to claim 1 is characterized in that, said central controller connects display, and what said display was used to show central controller output is provided with parameter and monitoring parameter in real time.
3. the radiofrequency ablation therapy equipment that is used to block the renal artery sympathetic plexus according to claim 1; It is characterized in that; Said central controller connects parameter panel is set, and said parameter is provided with panel and is used for importing treatment time, temperature restriction and treatment model selection through button operation to said central controller.
4. the radiofrequency ablation therapy equipment that is used to block the renal artery sympathetic plexus according to claim 1 is characterized in that said output circuit comprises impedance matching circuit, and the impedance setting value is: 4 Ω～300 Ω.
5. the radiofrequency ablation therapy equipment that is used to block the renal artery sympathetic plexus according to claim 1 is characterized in that, the signal frequency that said frequency oscillator produces is: 200Khz～4Mhz.
6. the radiofrequency ablation therapy equipment that is used to block the renal artery sympathetic plexus according to claim 1; It is characterized in that; Said central controller is controlled the power amplification multiple of said power amplifier through said control circuit, makes that the power of the radio frequency modulated wave after the said power amplification is that increment is adjustable continuously with 0.1 watt between 0.1 watt to 200 watts.
7. the radiofrequency ablation therapy equipment that is used to block the renal artery sympathetic plexus according to claim 1; It is characterized in that; Said electrode catheter interface connection electrode conduit; Not only the radio frequency modulated wave after the power amplification is transferred to the electrode in the electrode catheter; But also receive temperature analog signal and modulus of impedance analog signal from said electrode, and temperature analog signal and modulus of impedance analog signal are outputed to testing circuit, said testing circuit exports analogue signal to central controller after analog digital conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200578516U CN202537652U (en) | 2012-02-20 | 2012-02-20 | Radiofrequency ablation therapeutic equipment for blocking renal artery sympathetic plexus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200578516U CN202537652U (en) | 2012-02-20 | 2012-02-20 | Radiofrequency ablation therapeutic equipment for blocking renal artery sympathetic plexus |
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| Publication Number | Publication Date |
|---|---|
| CN202537652U true CN202537652U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200578516U Expired - Fee Related CN202537652U (en) | 2012-02-20 | 2012-02-20 | Radiofrequency ablation therapeutic equipment for blocking renal artery sympathetic plexus |
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| CN (1) | CN202537652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199573A (en) * | 2018-09-04 | 2019-01-15 | 方润医疗器械科技（上海）有限公司 | A kind of plasma radiofrequency ablation system damaged for neuromodulation and nerve |
-
2012
- 2012-02-20 CN CN2012200578516U patent/CN202537652U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199573A (en) * | 2018-09-04 | 2019-01-15 | 方润医疗器械科技（上海）有限公司 | A kind of plasma radiofrequency ablation system damaged for neuromodulation and nerve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20150220 |
|
| EXPY | Termination of patent right or utility model |