CN200942123Y - Radiofrequency generating and controlling device for radiofrequency ablation therapy - Google Patents
Radiofrequency generating and controlling device for radiofrequency ablation therapy Download PDFInfo
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- CN200942123Y CN200942123Y CN 200620040646 CN200620040646U CN200942123Y CN 200942123 Y CN200942123 Y CN 200942123Y CN 200620040646 CN200620040646 CN 200620040646 CN 200620040646 U CN200620040646 U CN 200620040646U CN 200942123 Y CN200942123 Y CN 200942123Y
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Abstract
The utility model relates to a radiofrequency generating and control device for radiofrequency ablation therapy. The device is composed of a radiofrequency generating unit, a temperature sensor, an impedance measuring unit, a timer and an interface. The device can generate the radiofrequency energy according to the preset parameters. The measured temperature is used in the monitor and control of the radiofrequency energy output; the measured impedance is used in the control of output radiofrequency power; and the timer controls the time of ablation therapy. The device helps shorten surgical time and improve surgical effects by precisely monitoring the output parameters of ablation and safely ablating the tumor tissue.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of energy delivery and outut device that the radio-frequency (RF) ablation of the treatment soft tissue of human body (comprising tumor) is hindered by Wicresoft that be used for.
Technical background
Report the earliest about heat energy treatment tumor is early stage Egyptian and Greek treat superficial tumor with thermocauterization record.In general, according to histological types and concrete condition, heat energy causes do not wait from 3 to the 50 hours time of primary cellular defect needs, when temperature is increased to greater than 42 ℃, causes the needed time of primary cellular defect to be index decreased.For example, when temperature reaches 46 ℃, need 8 minutes kill tumor cells, and when temperature reaches 51 ℃, only need 2 minutes just can the kill tumor cell.When temperature surpasses 60 ℃, the intracellular protein degeneration, two lipid films melt, and cell death is inevitable.Studies show that there is certain physiological regulation defective in newborn tumor vessel, and cryogenic toleration is better than normal cell, and pyritous toleration is more normally organized poor.
Radio frequency produces heat energy and causes the focus that tissue necrosis more and more becomes research and clinical practice in recent years.When using radiofrequency ablation therapy, the high-frequency alternating current of probe tip is injected the probe surrounding tissue, and the ion in the tissue also just changes along with the change of the sense of current, thereby frictional heat, when the temperature of tissue surpassed 60 ℃, regional organization's necrosis appearred in cell death around probe.The radio-frequency (RF) therapy technology of standard can make the local organization temperature surpass 100 ℃, makes destination organization and tissue generation coagulation necrosis on every side.
Along with the energy ablation continuous advancement in technology, the radio frequency of radiofrequency ablation therapy produces and control device is derived gradually and developed more accurate various parameters monitoring and control method.In recent years, along with the expansion gradually of energy ablation technology clinical application range, the radio frequency generation control device that research and development are adapted to different clinical practice demands just seems especially important.
Summary of the invention
The purpose of this utility model is to design a kind of radio frequency generation and control device that carries out (comprising tumor) radiofrequency ablation therapy effectively at the soft tissue of human body, this apparatus structure is simple, easy to operate, and can effectively control the radio-frequency (RF) ablation scope, improve surgical effect.
The radio frequency that is used for radiofrequency ablation therapy that the utility model proposes produces and control device, is made up of radio frequency generation unit, temperature sensing unit, impedance measuring unit, controller and user interface, and its structure as shown in Figure 1.Wherein, controller is connected with radio frequency generation unit, temperature sensing unit, the mutual circuit of impedance measuring unit respectively; The radio frequency generation unit reaches with electricity respectively and is connected with the loop electrode plate, impedance measuring unit is connected with the loop electrode plate with electrode respectively, temperature sensing unit is connected with electrode, electrode is equipped with temperature sensor, controller uses a single-chip microcomputer, and with the user interface interaction, each ingredient is closed in the shell.
This device also can connect a display device, liquid crystal display (comprising unicolor or chromatic) for example, perhaps other display (comprises the brightness that conforms automatically, chroma, and the display of contrast etc.), be used to show information such as the temperature that measures, impedance, time.
When this device used, after the user setting operation parameter (for example temperature control operational mode, 50 watts (power), 90 degree (temperature), 10 minutes (time)), this device then can be according to the parameter output radio-frequency (RF) energy of setting.The measured temperature of electrode can be in order to monitoring and control output radio-frequency (RF) energy.Measured impedance can be used to control output radio-frequency power.But timer is the time of assist control ablation then.In the treatment operation, this device can be monitored the output parameter of ablation accurately, and safer ablated tumor tissue can shorten treatment time, improves therapeutic effect.
Description of drawings
Fig. 1 is the built-up circuit functional diagram of each unit.
Fig. 2 produces the control device structure chart for this utility model radio frequency.
Fig. 3 uses the arrangement diagram for this utility model radio frequency produces control device.
Fig. 4 produces control device when beginning and finish to melt for this utility model radio frequency, and it is heated and cools off power demand rate controlled diagram.Wherein, a, b, c section are the power of heating, and are cumulative rate controlled.D is setting power or holding temperature power demand, and e is a cooling power, is rate controlled decrescence.
Fig. 5 produces control device when the writing time, the example figure of various time sheeies for this utility model radio frequency.Wherein, the A section is a warm-up time, and B is for melting the time, and C is remaining time, and D is cool time, and E melts the time for setting.
Number in the figure: 1 is radio-frequency power output and temperature monitoring joint, and 2 is the steam-operating switch, and 3 is loop electrode plate joint, 4 for adding auxiliary temperature measurement joint, and 5 is operation push-button, and 6 is display screen, 7 is shell, and 8 is electrode cable, and 9 is electrode, 10 is the human body ablation tissue, and 11 is the loop electrode plate, and 12 is return wire, 13 is the user interface, and 14 is controller, and 15 is the radio frequency generation unit, 16 is impedance measuring unit, and 17 is temperature sensing unit, and 18 is human body.
The specific embodiment
Embodiment further describes this utility model below in conjunction with accompanying drawing.Basic structure of the present utility model comprises radio frequency generation unit, temperature sensing unit, impedance measuring unit, controller and user interface, and its connection is seen shown in Figure 1.The energy that controller adopts pid algorithm (direct ratio, integration, differential control) control radio frequency generation unit to produce.
This device also can connect an alarm device, and this alarm device can be alarm devices such as sound, color, light, also can be the alert flag that is provided with on the display or alarm signal etc.
This device also can add one group of above temperature survey auxiliary line is set.Be used to monitor ablation tissue relative temperature on every side.
The shell of this device is provided with various buttons and joint, comprises operation push-button, radio frequency output and temperature monitoring joint, loop electrode plate joint, auxiliary temperature measurement joint, pneumatic switch etc., and the outer casing frontispiece zone line is the display screen of display.
Loop electrode plate joint (being passage) in this device can be one or more (as 2-5), when being a plurality of joint, can connect pole plate in a plurality of loops, and device can be distinguished or the situation of monitoring circuit battery lead plate attaching monolithically.Attach and to show warning or out of service when bad.
Radio frequency out splice going splice in this device (being passage) can be one or more (as 2-4).When being a plurality of joint, can connect a plurality of radio-frequency electrodes, a plurality of electrodes can carry out radio-frequency (RF) ablation simultaneously to a tumor tissues; Wherein, the radio frequency of output can be one pole loop or bipolar loop.
In this device, temperature control and monitoring joint (being passage) can be one or more (as 2-5).When being a plurality of, can connect a plurality of temperature sensors, monitor, control one or more ablation points respectively, also can a plurality ofly monitor, control same ablation points simultaneously.
In this device, operational mode can be voltage-controlled (control output radio-frequency power) and 2 kinds of patterns of temperature control (temperature of control tissue).The selection of two kinds of patterns can be adopted manual mode, also can adopt automated manner, for example presets and identification automatically according to electrode type or user.
Operation push-button in this device on the shell can be mechanical type, electronic type, light sensation formula or acoustic control formula etc.
In this device, also can be provided with the operating parameter out splice going splice, be used for the output function parameter, as power, temperature, impedance, time etc.
In this device, when radio-frequency (RF) ablation began and finish, it was heated, cools off power demand (temperature control and watt control) and is sectional and restriction out of the ordinary.
In this device, calculating can be separated or add up to the radio-frequency (RF) ablation time, specifically can be divided into: warm-up time, melt the time, cool time, accumulated time, remaining time.
The frequency range that this device produces radio frequency is the 430-495 hertz, and the scope of output is 1 watt-200 watts.
In this device, the central processing unit (CPU) that controller 14 adopts on the market.During start, this controller is 13 reception orders from the user interface.This order comprises time, temperature, power and pattern.Controller is sent this order the user interface back to and is shown as setting-up time, target temperature, target power and operator scheme.Simultaneously, controller outputs to user interface 13 with the resistance value that amount of resistance measurement unit 16 is read, and demonstrates real impedance values.And controller is with real-time more present actual temperature, actual power and practical impedance.Via temperature gap and power difference, impedance ranges and determine the size of output relatively again.
Controller because of adopt verified on the market among central processor, general signal all transmits as signal with general voltage, the signal of temperature sensor becomes the readable range of signal of central processing unit (from mv to v) by the measuring temp cell translation.In the enforcement, build time register within the controller; (or existing timing software) is computation time in time.
When this device used, user comprised radio-frequency power, temperature, impedance, time etc. by operation push-button input operation parameter, and is shown by display.User is by operation push-button (5 Fig. 2) input operation parameter, and the user interface becomes the machinery sign indicating number with Parameters Transformation, transfers to controller and controls each unit (Fig. 1) respectively.Controller is obtained present real-time parameter from temperature sensing unit and amount of resistance measurement unit.Controller is also done energy control from P.I.D. algorithm (direct ratio, integration, differential control) to the radio frequency generation unit when feedback information arrives the user interface.
Concrete radio frequency produces the control device arrangement structure as shown in Figure 3, receives electrode 9 (Fig. 3) with lead 8 (Fig. 3) from radio frequency out splice going splice 1 (Fig. 2).Electrode 9 (Fig. 3) then inserts the tissue 10 (Fig. 3) that will melt.Patient body attaches goes up loop electrode plate 11 (Fig. 3), takes back loop electrode plate joint 3 (Fig. 3) via return wire 12 (Fig. 3) again.Start, after the selected pattern of operation push-button 5 (Fig. 2), temperature and impedance just are presented at parameter display area 6 (Fig. 2).User can be according to the size of ablation tissue, position, quality, organize the adjacent organs situation and determine operator scheme (watt control, temperature control, or alternately) and operating parameter.
Device produces the radio-frequency (RF) energy of fixed frequency, and the control watt level is controlled gross energy again, and exported via the radio frequency out splice going splice by time set via electric parameter (for example voltage, electric current, impedance etc.) regulation and control.Device can be selected watt a control or a temperature control mode according to the real time status for the treatment of ablation tissue.If connect the electrode of no temperature sensor, then device is automatically with a watt control mode operation.If be equipped with temperature sensor on the electrode, then constitute the loop via the loop electrode plate, device is then measured impedance and the tissue temperature of organizing on the loop automatically.In the safety operation scope, this device can cooperate the use of electrode and loop electrode plate and export the tissue that the radio-frequency (RF) energy of effective control melts to needs, to reach the purpose of safe and effective ablation.Practice shows, uses this device to do Wicresoft's injured tissue ablation, and its ablation effect is good, and the safety time of improving can shorten greatly, and treatment has positive effect.
Claims (8)
1, a kind of radio frequency that is used for radiofrequency ablation therapy produces and control device, it is characterized in that forming by radio frequency generation unit, temperature sensing unit, impedance measuring unit, controller and user interface, wherein, controller is connected with radio frequency generation unit, temperature sensing unit, the mutual circuit of impedance measuring unit respectively; The radio frequency generation unit is connected with the loop electrode plate with electrode respectively again, impedance measuring unit is connected with the loop electrode plate with electrode respectively, temperature sensing unit is connected with electrode, electrode is equipped with temperature sensor, controller uses a single-chip microcomputer, and with the user interface interaction, each ingredient is closed in the shell.
2, radio frequency according to claim 1 produces and control device, it is characterized in that also including a display device.
3, radio frequency according to claim 1 produces and control device, it is characterized in that also being connected with an alarm device.
4, radio frequency according to claim 1 produces and control device, it is characterized in that also being provided with one group of above temperature survey auxiliary line.
5, radio frequency according to claim 1 produces and control device, it is characterized in that described shell is provided with operation push-button, radio frequency output and temperature monitoring joint, loop electrode plate joint, auxiliary temperature measurement joint and pneumatic switch, the front zone line is the display screen of display device.
6, radio frequency according to claim 5 produces and control device, it is characterized in that described loop electrode plate joint is one or more.
7, radio frequency according to claim 5 produces and control device, it is characterized in that described radio frequency out splice going splice is one or more.
8, radio frequency according to claim 5 produces and control device, it is characterized in that the temperature monitoring joint is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200620040646 CN200942123Y (en) | 2006-03-30 | 2006-03-30 | Radiofrequency generating and controlling device for radiofrequency ablation therapy |
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| CN 200620040646 CN200942123Y (en) | 2006-03-30 | 2006-03-30 | Radiofrequency generating and controlling device for radiofrequency ablation therapy |
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| CN200942123Y true CN200942123Y (en) | 2007-09-05 |
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| CN 200620040646 Expired - Fee Related CN200942123Y (en) | 2006-03-30 | 2006-03-30 | Radiofrequency generating and controlling device for radiofrequency ablation therapy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102920505A (en) * | 2011-06-20 | 2013-02-13 | 厄比电子医学有限责任公司 | Method for the control of a medical device as a function of neutral electrode impedance |
| CN103767787A (en) * | 2014-01-24 | 2014-05-07 | 上海魅丽纬叶医疗科技有限公司 | Radiofrequency ablation method and radiofrequency ablation system for nerve ablation |
| WO2014121664A1 (en) * | 2013-02-07 | 2014-08-14 | 上海魅丽纬叶医疗科技有限公司 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| CN106039558A (en) * | 2016-06-29 | 2016-10-26 | 深圳可思美科技有限公司 | Radio-frequency cosmetic instrument |
| CN107669335A (en) * | 2017-11-01 | 2018-02-09 | 江苏启灏医疗科技有限公司 | Low-temperature plasma scalpel and low-temperature plasma operation device |
| CN108420526A (en) * | 2018-01-31 | 2018-08-21 | 符浩敏 | A kind of control method and system of radiofrequency melting instrument |
| CN108463181A (en) * | 2016-01-15 | 2018-08-28 | 奥林巴斯株式会社 | Energy control apparatus and disposal system |
| CN108888335A (en) * | 2018-06-22 | 2018-11-27 | 上海慧达医疗器械有限公司 | A kind of radiofrequency generator of automation ablation |
| CN110074857A (en) * | 2018-09-14 | 2019-08-02 | 杭州堃博生物科技有限公司 | Lung's radio frequency ablation system and control method, control device and computer-readable medium and radio frequency ablation catheter |
| CN110537971A (en) * | 2019-09-24 | 2019-12-06 | 埃文斯科技（北京）有限公司 | High-safety radio frequency ablation system |
| CN110897710A (en) * | 2019-11-30 | 2020-03-24 | 杭州堃博生物科技有限公司 | Control method and system of pulmonary nerve ablation system and computer medium |
| CN112957119A (en) * | 2021-01-29 | 2021-06-15 | 丁兆霖 | Multi-joint functional negative plate connecting wire |
| WO2022143841A1 (en) * | 2020-12-31 | 2022-07-07 | 杭州堃博生物科技有限公司 | Power adjustment method for multi-electrode radio frequency probe, and radio frequency host |
| WO2024061225A1 (en) * | 2022-09-20 | 2024-03-28 | 南京伟思医疗科技股份有限公司 | Radio frequency private therapeutic instrument |
-
2006
- 2006-03-30 CN CN 200620040646 patent/CN200942123Y/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102920505B (en) * | 2011-06-20 | 2016-05-18 | 厄比电子医学有限责任公司 | For according to neutral electrode impedance control the method for Medical Devices |
| CN102920505A (en) * | 2011-06-20 | 2013-02-13 | 厄比电子医学有限责任公司 | Method for the control of a medical device as a function of neutral electrode impedance |
| US9949782B2 (en) | 2011-06-20 | 2018-04-24 | Erbe Elektromedizin Gmbh | Method for the control of a medical device as a function of neutral electrode impedance |
| US9993291B2 (en) | 2013-02-07 | 2018-06-12 | Shanghai Golden Leaf Med Tec Co., Ltd | Radio frequency ablation method, system and radio frequency ablation device thereof |
| WO2014121664A1 (en) * | 2013-02-07 | 2014-08-14 | 上海魅丽纬叶医疗科技有限公司 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| CN103767787A (en) * | 2014-01-24 | 2014-05-07 | 上海魅丽纬叶医疗科技有限公司 | Radiofrequency ablation method and radiofrequency ablation system for nerve ablation |
| CN103767787B (en) * | 2014-01-24 | 2016-05-11 | 上海魅丽纬叶医疗科技有限公司 | For neural RF ablation method and the radio frequency ablation system melting |
| CN108463181A (en) * | 2016-01-15 | 2018-08-28 | 奥林巴斯株式会社 | Energy control apparatus and disposal system |
| CN106039558A (en) * | 2016-06-29 | 2016-10-26 | 深圳可思美科技有限公司 | Radio-frequency cosmetic instrument |
| CN107669335A (en) * | 2017-11-01 | 2018-02-09 | 江苏启灏医疗科技有限公司 | Low-temperature plasma scalpel and low-temperature plasma operation device |
| CN108420526A (en) * | 2018-01-31 | 2018-08-21 | 符浩敏 | A kind of control method and system of radiofrequency melting instrument |
| CN108888335A (en) * | 2018-06-22 | 2018-11-27 | 上海慧达医疗器械有限公司 | A kind of radiofrequency generator of automation ablation |
| CN108888335B (en) * | 2018-06-22 | 2021-04-02 | 上海慧达医疗器械有限公司 | Automatic change radio frequency appearance that melts |
| CN110074857A (en) * | 2018-09-14 | 2019-08-02 | 杭州堃博生物科技有限公司 | Lung's radio frequency ablation system and control method, control device and computer-readable medium and radio frequency ablation catheter |
| CN110537971A (en) * | 2019-09-24 | 2019-12-06 | 埃文斯科技（北京）有限公司 | High-safety radio frequency ablation system |
| CN110897710A (en) * | 2019-11-30 | 2020-03-24 | 杭州堃博生物科技有限公司 | Control method and system of pulmonary nerve ablation system and computer medium |
| CN110897710B (en) * | 2019-11-30 | 2021-08-31 | 杭州堃博生物科技有限公司 | Control method and system of pulmonary nerve ablation system and computer medium |
| WO2022143841A1 (en) * | 2020-12-31 | 2022-07-07 | 杭州堃博生物科技有限公司 | Power adjustment method for multi-electrode radio frequency probe, and radio frequency host |
| CN112957119A (en) * | 2021-01-29 | 2021-06-15 | 丁兆霖 | Multi-joint functional negative plate connecting wire |
| WO2024061225A1 (en) * | 2022-09-20 | 2024-03-28 | 南京伟思医疗科技股份有限公司 | Radio frequency private therapeutic instrument |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070905 Termination date: 20140330 |