WO2022143841A1 - 多电极射频探头的功率调整方法和射频主机 - Google Patents
多电极射频探头的功率调整方法和射频主机 Download PDFInfo
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- WO2022143841A1 WO2022143841A1 PCT/CN2021/142752 CN2021142752W WO2022143841A1 WO 2022143841 A1 WO2022143841 A1 WO 2022143841A1 CN 2021142752 W CN2021142752 W CN 2021142752W WO 2022143841 A1 WO2022143841 A1 WO 2022143841A1
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- radio frequency
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- 239000000523 sample Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000002347 injection Methods 0.000 claims abstract description 59
- 239000007924 injection Substances 0.000 claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 19
- 230000005405 multipole Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005404 monopole Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 238000013507 mapping Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007674 radiofrequency ablation Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
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- A—HUMAN NECESSITIES
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
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- A—HUMAN NECESSITIES
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- A61B18/1206—Generators therefor
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- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
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Definitions
- Embodiments of the present invention relate to the field of electronic technologies, and in particular, to a power adjustment method for a multi-electrode radio frequency probe and a radio frequency host.
- the radio frequency technology is that under the guidance of the image, the radio frequency probe enters the operation position of the operation object, and the radio frequency host sends radio frequency energy, which is precisely applied to the operation object for radio frequency operation.
- the radio frequency host sends radio frequency energy, which is precisely applied to the operation object for radio frequency operation.
- the process of radio frequency operation it is necessary to ensure the operation effect and pay attention to the protection operation
- the object and the operator are not damaged or damaged.
- the power of the radio frequency energy is too large, it is easy to cause damage to the operation object and the operator.
- the power setting of the multiple electrodes can only be performed as a whole, and the power setting is not accurate enough, which affects the radio frequency operation effect.
- Embodiments of the present invention provide a power adjustment method and a radio frequency host of a multi-electrode radio frequency probe, which can realize power setting according to electrical parameters of electrodes in the multi-electrode radio frequency probe, improve power control accuracy, and thus improve operation effect.
- One aspect of an embodiment of the present invention provides a power adjustment method for a multi-electrode radio frequency probe, which includes: when a radio frequency host acts on a radio frequency operation object through a multi-electrode radio frequency probe according to the radio frequency energy emitted by a radio frequency host according to a first power, detecting the radio frequency in real time Operate the physical characteristic data of the object, and compare the physical characteristic data with the preset reference value range; when the physical characteristic data exceeds the reference value range, control the syringe pump to the radio frequency according to the preset injection flow rate
- the operation object injects liquid to adjust the physical characteristic data to be within the range of the reference value; when the injection flow rate of the syringe pump reaches the limit value, and the physical characteristic data exceeds the range of the reference value, then according to
- the electrical parameters of the electrodes in the multi-pole radio frequency probe are used to calculate the power adjustment value of the radio frequency host; according to the first power and the power adjustment value, the radio frequency output power is adjusted to
- an embodiment of the present invention further provides a radio frequency host, including: a detection module configured to detect the radio frequency in real time when the radio frequency energy emitted by the radio frequency host according to a first power acts on a radio frequency operation object through a multi-electrode radio frequency probe Operate the physical characteristic data of the object, and compare the physical characteristic data with the preset reference value range; the control module is used to control the syringe pump to inject according to the preset reference value range when the physical characteristic data exceeds the reference value range The flow rate injects liquid into the radio frequency operation object, so as to adjust the physical characteristic data to be within the reference value range; the control module is also used for when the injection flow rate of the syringe pump reaches a limit value, and the If the physical characteristic data exceeds the range of the reference value, the power adjustment value of the radio frequency host is calculated according to the electrical parameters of the electrodes in the multipole radio frequency probe; the control module is further configured to calculate the power adjustment value of the radio frequency host according to the first power and
- An aspect of an embodiment of the present invention further provides a radio frequency host, including a memory and a processor; the memory stores executable program codes; the processor coupled with the memory calls the memory stored in the memory The program code can be executed to execute the power adjustment method of the multi-electrode radio frequency probe as described above.
- the syringe pump is firstly controlled to inject liquid into the radio frequency operation object according to the preset injection flow rate, so as to adjust the physical characteristic data to be located in the radio frequency operation object.
- the power adjustment value of the radio frequency host is calculated according to the electrical parameters of the electrodes in the multi-pole radio frequency probe, and the output power is adjusted according to the adjustment value. , adding the electrical parameters of the electrode into the calculation can improve the accuracy of adjusting the output power and improve the effect of radio frequency operation.
- FIG. 1 is a schematic diagram of an application scenario of a power adjustment method for a multi-electrode radio frequency probe provided by an embodiment of the present invention
- FIG. 2 is a schematic diagram of a connection between a multi-electrode radio frequency probe and a radio frequency host according to an embodiment of the present invention
- FIG. 3 is a schematic flowchart of a power adjustment method for a multi-electrode radio frequency probe according to an embodiment of the present invention
- FIG. 4 is a schematic flowchart of a power adjustment method for a multi-electrode radio frequency probe provided by another embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of a radio frequency host provided by an embodiment of the present invention.
- FIG. 6 is a schematic structural diagram of a radio frequency host provided by another embodiment of the present invention.
- FIG. 7 is a schematic diagram of a hardware structure of a radio frequency host provided by an embodiment of the present invention.
- the power adjustment method of the multi-electrode radio frequency probe is used in the process of radio frequency operation, when an event that triggers power adjustment occurs, such as radio frequency
- an event that triggers power adjustment occurs, such as radio frequency
- the power adjustment value is calculated according to the PID (Proportional Integral Differential) algorithm.
- the success rate of the operation and the effect of the radio frequency operation is a control algorithm that combines the three links of proportional, integral and differential.
- the essence of PID control is to operate according to the functional relationship of proportional, integral and differential according to the input deviation value, and the operation result is used to control the output.
- the execution body of the data adjustment method is a radio frequency host
- the radio frequency host may specifically be a device such as a radio frequency ablation apparatus.
- the radio frequency host 100 and the syringe pump 200 are respectively connected to the radio frequency operation object 300
- the radio frequency host 100 has a multi-electrode radio frequency probe.
- the multi-electrode radio frequency probe 101 with multiple electrodes 1011 is connected to the radio frequency host. 100 connections.
- the radio frequency operation object 300 may be any object that requires radio frequency operation.
- the radio frequency operation object may be an organism that needs to ablate the mutant tissue in the body, and the ablation instrument emits radio frequency energy to ablate the mutant tissue.
- the radio frequency host 100 When performing the radio frequency operation, the radio frequency host 100 sends out radio frequency energy with a first power through the radio frequency generating device, and the first power may be preset or obtained from the radio frequency operation big data stored in the server and the radio frequency operation A value that matches the properties of the object 300 , and the radio frequency energy acts on the specified position of the radio frequency operation object 300 through the multi-electrode radio frequency probe.
- the radio frequency operation as the properties of the specified position of the radio frequency operation object 300 change, the physical characteristic data detected by the detection device of the radio frequency host 100 also changes.
- the syringe pump 200 has an injection device, and under the control of the control device of the syringe pump 200, injects liquid to a designated position (ie, the operation position) of the radio frequency operation object 300, and the physical characteristics of the operation position can be adjusted by adjusting the injection flow rate of the liquid,
- the liquid is safe and harmless, such as normal saline.
- the radio frequency host 100 and the syringe pump 200 are connected to form a radio frequency operating system. After the connection, the radio frequency host 100 becomes the master device of the radio frequency operating system, and the syringe pump 200 becomes a slave device, losing the controllability of its own injection operation, and the control device of the radio frequency host 100 controls the injection.
- the pump 200 completes the injection operation.
- Both the radio frequency host 100 and the syringe pump 200 have input interfaces, which can be externally connected to a removable memory, such as a U disk, and an external input device such as a keyboard, a mouse, etc., to read data from the removable memory, and obtain the data input by the user from the input device
- the radio frequency host 100 can also connect to the server through the network, and obtain the big data from all the radio frequency hosts connected to the server from the database of the server.
- the big data includes various historical data related to the radio frequency operation, such as the radio frequency operation Data such as working power, working time, temperature and impedance of the operating position of the radio frequency operating object.
- FIG. 3 a schematic flowchart of a power adjustment method for a multi-electrode radio frequency probe provided by an embodiment of the present invention.
- the method can be applied to the radio frequency host shown in FIG. 1, and as shown in FIG. 3, the method specifically includes:
- Step S301 when the radio frequency host acts on the radio frequency operation object through the multi-electrode radio frequency probe according to the radio frequency energy emitted by the first power, detects the physical characteristic data of the radio frequency operation object in real time, and compares the physical characteristic data with the preset reference value. range for comparison;
- the multi-electrode radio frequency probe includes a plurality of electrodes. During the radio frequency operation, the plurality of electrodes act on the designated position of the radio frequency operation object at the same time.
- the number of multiple electrodes is not limited, and can be 3, 4, or 6, etc. The specific number is related to the purpose of the radio frequency operation, the nature of the radio frequency operation object, and the characteristics of the designated location.
- the physical characteristic data may be a temperature value of the radio frequency operating object.
- the physical characteristic data of the radio frequency operation object will change, and the physical characteristic data is compared with the preset reference value range to determine whether the physical characteristic data exceeds the The reference value range, for example, determines whether the temperature value of the radio frequency operation object exceeds a preset temperature reference value range.
- Step S302 when the physical characteristic data exceeds the reference value range, control the syringe pump to inject liquid into the radio frequency operation object according to the preset injection flow rate, so as to adjust the physical characteristic data to be within the reference value range;
- the reference range is a numerical interval with a minimum value and a maximum value.
- the acquisition method of the minimum value and the maximum value can be obtained from the historical RF operation data of all RF hosts in the network obtained from the server, or can be input to the RF host by the user. obtained from the setting data in .
- the physical property data exceeds the reference value range, that is, the physical property data is larger than the highest value of the reference value range, or the physical property data is smaller than the lowest value of the reference value range.
- the control system of the radio frequency host When the control system of the radio frequency host determines that the physical characteristic data of the radio frequency operation object exceeds the range of the reference value, it will send a control command to the control system of the syringe pump immediately or after a preset waiting time (for example, 3 seconds) to control the syringe pump. Inject liquid into the radio frequency operation object according to the preset injection flow rate, so as to adjust the physical characteristic data to be within the reference value range.
- the preset injection flow rate is greater than or smaller than the current injection flow rate. Increasing the injection flow rate can reduce the The temperature value of the radio frequency operating object, and reducing the injection flow rate can increase the temperature value of the radio frequency operating object.
- Step S303 when the injection flow rate of the syringe pump reaches the limit value, and the physical characteristic data exceeds the reference value range, then calculate the power adjustment value of the radio frequency host according to the electrical parameters of the electrodes in the multipolar radio frequency probe;
- the temperature of the radio frequency operation object cannot be further controlled by adjusting the injection flow rate.
- the power further adjusts the temperature of the radio frequency manipulated object.
- the power adjustment value of the RF host is calculated, and the electrical parameter is the minimum impedance value.
- Step S304 according to the first power and the power adjustment value, adjust the radio frequency output power to the second power and then output it.
- the syringe pump when the physical characteristic data of the radio frequency operation object exceeds the range of the reference value, the syringe pump is firstly controlled to inject liquid into the radio frequency operation object according to the preset injection flow rate, so as to adjust the physical characteristic data of the radio frequency operation object to be within the reference value.
- the power adjustment value of the radio frequency host is calculated according to the electrical parameters of the electrodes in the multipolar radio frequency probe, and the output power is adjusted according to the adjustment value.
- FIG. 4 a flowchart for implementing a radio frequency operation protection method provided by another embodiment of the present invention.
- the method can be applied to the radio frequency host shown in FIG. 1, and as shown in FIG. 4, the method specifically includes:
- Step S401 setting a reference value range
- the setting method can be that the RF host responds to the user's instruction, displays the setting limit of the reference value range on the display interface of the RF host, obtains the minimum and maximum values of the reference value input by the user, and obtains the generated command, which is the operation object of the RF operation.
- the temperature value of the generated reference value range can be that the RF host responds to the user's instruction, displays the setting limit of the reference value range on the display interface of the RF host, obtains the minimum and maximum values of the reference value input by the user, and obtains the generated command, which is the operation object of the RF operation.
- the temperature value of the generated reference value range is the temperature value of the generated reference value range.
- the setting method can also be obtained from the historical radio frequency operation data stored in the database of the server networked with the radio frequency host.
- the data stores the historical radio frequency operation data of all radio frequency hosts connected to the server.
- the average temperature value can be taken as the middle value of the reference value range, or the average value of the highest temperature value can be taken as the highest value of the reference range value.
- Step S402 when the radio frequency host acts on the radio frequency operation object through the multi-electrode radio frequency probe according to the radio frequency energy emitted by the first power, the temperature value of the radio frequency operation object is detected in real time, and the temperature value is compared with the reference value range;
- the multi-electrode radio frequency probe includes a plurality of electrodes. During the radio frequency operation, the plurality of electrodes act on the designated position of the radio frequency operation object at the same time.
- the number of multiple electrodes is not limited, and can be 3, 4, or 6, etc. The specific number is related to the purpose of the radio frequency operation, the nature of the radio frequency operation object, and the characteristics of the designated location.
- the physical characteristic data may be a temperature value of the radio frequency operating object.
- the physical characteristic data of the radio frequency operation object will change, and the physical characteristic data is compared with the preset reference value range to determine whether the physical characteristic data exceeds the The reference value range, for example, determines whether the temperature value of the radio frequency operation object exceeds a preset temperature reference value range.
- Step S403 when the temperature value exceeds the reference value range, control the syringe pump to inject liquid into the radio frequency operation object according to the preset injection flow rate, so as to adjust the temperature value to be within the reference value range;
- the reference range is a numerical range with a minimum value and a maximum value, and the physical property data exceeds the reference value range, that is, the physical property data is greater than the highest value of the reference value range, or the physical property data is smaller than the reference value. The lowest value of the range.
- the control system of the radio frequency host When the control system of the radio frequency host determines that the physical characteristic data of the radio frequency operation object exceeds the range of the reference value, it will send a control command to the control system of the syringe pump immediately or after a preset waiting time (for example, 3 seconds) to control the syringe pump. Inject liquid into the radio frequency operation object according to the preset injection flow rate, so as to adjust the physical characteristic data to be within the reference value range.
- the preset injection flow rate is greater than or smaller than the current injection flow rate. Increasing the injection flow rate can reduce the The temperature value of the radio frequency operating object, and reducing the injection flow rate can increase the temperature value of the radio frequency operating object.
- Step S404 when the injection flow rate of the syringe pump reaches the limit value, and the temperature value of the radio frequency operation object exceeds the reference value range, then calculate the power adjustment value of the radio frequency host according to the electrical parameters of the electrodes in the multipolar radio frequency probe;
- the temperature of the radio frequency operation object cannot be further controlled by adjusting the injection flow rate.
- the power further adjusts the temperature of the radio frequency manipulated object.
- the preset PID algorithm Through the preset PID algorithm, according to the minimum impedance value of each electrode of the multi-electrode radio frequency probe, determine the total power to be set, detect the real-time total power of the current multi-electrode radio frequency probe, and set the total power and real-time total power according to the needs. , and calculate the power adjustment value of the radio frequency host through the preset PID algorithm.
- the impedance values of multiple electrodes of the multi-electrode radio frequency probe are detected, a single monopole with the smallest impedance value is determined therefrom, and the total power to be set is calculated according to the power of the single electrode, and the total power to be set is the electrode Upper limit of achievable power.
- each electrode of the multi-electrode RF probe is connected to the same voltage output, and the power of each electrode is determined by the impedance R, and the smaller the R is The larger P is, the power of each single electrode is limited to the set total power, which can be equal to but cannot exceed the set total power.
- the total power that needs to be set at present is calculated
- P lim is the known power of the electrode with the smallest impedance value. According to R lim and the impedance value R n of other single electrodes, the corresponding P n of each single electrode can be obtained.
- the total power to be set is P, and the calculation formula is
- the total power increment ⁇ P can be obtained.
- the PID algorithm formula is as follows:
- K P are the proportional coefficient, integral coefficient and differential coefficient of the PID algorithm
- T is the sampling time
- T I is the integral time (also called the integral coefficient)
- T D is the differential time (also called the differential coefficient)
- err(k) is the required setting.
- the difference between the fixed total power P and the real-time total power, u(k) is the output;
- Step S405 according to the first power and the power adjustment value, adjust the power output by the radio frequency to the second power and then output the power.
- ⁇ P which has a one-to-one mapping relationship with ⁇ P, because the adjustment power is realized by controlling the voltage signal of the power board, and the output voltage corresponds to the digital signal input by the digital-to-analog converter.
- the mapping relationship is to make a corresponding relationship between the output and ⁇ P. For example, if the output is 1, it means that the corresponding power increment ⁇ P is 0.1w. Thus, ⁇ P can be controlled to be realized according to the mapping relationship.
- the second power is obtained from the value of the first power increment ⁇ P.
- ⁇ P is a negative value
- the increment ⁇ P indicates that the RF output power is reduced to reduce the temperature.
- ⁇ P is a positive value, it means that RF output power is increased to increase temperature.
- the radio frequency output power is adjusted to the second power and then output.
- the syringe pump when the temperature value of the radio frequency operation object exceeds the reference value range, the syringe pump is firstly controlled to inject liquid into the radio frequency operation object according to the preset injection flow rate, so as to adjust the temperature on the radio frequency operation object to fall back on the radio frequency operation object.
- the temperature value exceeds the reference value range when the injection flow rate reaches the limit value, determine the single electrode with the smallest impedance value among the electrodes in the multi-pole radio frequency probe, and according to the impedance value of the single electrode, obtain
- the total power to be set is further based on the total power to be set and the real-time total power of the detected multi-pole RF probe, and the power adjustment value of the RF host is calculated by the PID algorithm, which greatly improves the output power setting. Therefore, the effect of radio frequency operation can be better obtained.
- the radio frequency host is the radio frequency host that executes the power adjustment method of the multi-electrode radio frequency probe in the above-mentioned embodiment, and the radio frequency host includes:
- the detection module 501 is configured to detect the physical characteristic data of the radio frequency operation object in real time when the radio frequency energy emitted by the radio frequency host according to the first power acts on the radio frequency operation object through the multi-electrode radio frequency probe, and compare the physical characteristic data with the preset reference value range for comparison;
- the control module 502 is configured to control the syringe pump to inject liquid into the radio frequency operation object according to the preset injection flow rate when the physical characteristic data exceeds the reference value range, so as to adjust the physical characteristic data to be within the reference value range;
- the control module 502 is further configured to calculate the power adjustment value of the radio frequency host according to the electrical parameters of the electrodes in the multipolar radio frequency probe when the injection flow rate of the syringe pump reaches the limit value and the physical characteristic data exceeds the reference value range;
- the control module 502 is further configured to adjust the radio frequency output power to the second power and output it according to the first power and the power adjustment value.
- the control module when the detection module detects that the physical characteristic data of the radio frequency operation object exceeds the reference value range, the control module first controls the syringe pump to inject liquid into the radio frequency operation object according to the preset injection flow rate, so as to convert its physical characteristic data. Adjust to be within the range of the reference value. If the injection flow rate reaches the limit value, the physical characteristic data still exceeds the range of the reference value, then the control module calculates the power adjustment value of the RF host according to the electrical parameters of the electrodes in the multi-pole RF probe The adjustment value adjusts the output power, and the electrical parameters of the electrodes are added to the calculation, which can improve the accuracy of adjusting the output power and improve the effect of radio frequency operation.
- the physical characteristic data of the radio frequency operation object includes the temperature value of the radio frequency operation object.
- the radio frequency host further includes: a setting module 601;
- the setting module 601 is used to obtain the maximum value and the minimum value of the temperature value input by the input interface, and generate a preset reference value range according to the maximum value and the minimum value of the temperature value;
- the historical data of the radio frequency operation is acquired from the database of the server, and the preset reference value range is obtained according to the temperature value of the operation object in the historical data.
- the control module 502 is further configured to control the syringe pump to inject liquid into the radio frequency operation object according to the preset first injection flow rate when the temperature value is greater than the highest value of the reference value range, so as to adjust the temperature value to be less than the maximum value of the reference value range,
- the first injection flow rate is greater than the current injection flow rate
- the syringe pump is controlled to inject liquid into the radio frequency operation object according to the preset second injection flow rate, so as to adjust the temperature value to be greater than the minimum value of the reference value range, and the second injection flow rate is smaller than the current injection rate. flow rate.
- control module 502 is further configured to determine the total power to be set according to the minimum impedance value of each electrode of the multi-electrode radio frequency probe;
- the real-time total power of the current multi-electrode RF probe is detected, and the power adjustment value of the RF host is calculated by the preset PID algorithm according to the total power and real-time total power set as required.
- control module 502 is further configured to determine a single monopole with the smallest impedance value among the multiple electrodes of the multi-electrode radio frequency probe;
- the power of the other electrodes is calculated, and the power of each electrode is calculated.
- the sum of the powers is used as the total power that needs to be set.
- K P are the proportional coefficient, integral coefficient and differential coefficient of the PID algorithm
- T is the sampling time
- T I is the integral time
- T D is the differential time
- err(k) is the difference between the total power value that needs to be set and the real-time total power value .
- control module 502 is further configured to, when the temperature value of the operating object is higher than the highest value of the reference value range, subtract the power adjustment value from the first power to obtain the second power, and adjust the radio frequency output power to the second power output later.
- the syringe pump when the temperature value of the radio frequency operation object exceeds the reference value range, the syringe pump is firstly controlled to inject liquid into the radio frequency operation object according to the preset injection flow rate, so as to adjust the temperature on the radio frequency operation object to fall back on the radio frequency operation object.
- the temperature value exceeds the reference value range when the injection flow rate reaches the limit value, determine the single electrode with the smallest impedance value among the electrodes in the multi-pole radio frequency probe, and according to the impedance value of the single electrode, obtain
- the total power to be set is further based on the total power to be set and the real-time total power of the detected multi-pole RF probe, and the power adjustment value of the RF host is calculated by the PID algorithm, which greatly improves the output power setting. Therefore, the effect of radio frequency operation can be better obtained.
- an embodiment of the present invention further provides a radio frequency host, including a memory 300 and a processor 400, and the processor 400 may be the central processing unit in the radio frequency host in the foregoing embodiment.
- Storage 300 such as hard drive memory, non-volatile memory (such as flash memory or other electronically programmable limit erasure memory used to form solid state drives, etc.), volatile memory (such as static or dynamic random access memory, etc.), etc., This embodiment of the present invention is not limited.
- the memory 300 stores executable program codes; the processor 400 coupled with the memory 300 invokes the executable program codes stored in the memory to execute the above-mentioned method for adjusting the power of a multi-electrode radio frequency probe.
- an embodiment of the present invention further provides a computer-readable storage medium
- the computer-readable storage medium may be set in the radio frequency host in the above-mentioned embodiments, and the computer-readable storage medium may be the aforementioned FIG. 7 .
- the computer-readable storage medium stores a computer program, and when the program is executed by the processor, implements the power adjustment method of the multi-electrode radio frequency probe described in the embodiments shown in FIG. 3 and FIG. 4 .
- the computer-storable medium may also be a USB flash drive, a removable hard disk, a read-only memory (ROM, Read-Only Memory), a RAM, a magnetic disk, or an optical disk and other media that can store program codes.
Abstract
Description
Claims (10)
- 一种多电极射频探头的功率调整方法,其特征在于,包括:当射频主机按照第一功率发出的射频能量通过多电极射频探头作用在射频操作对象上时,实时检测所述射频操作对象的物理特性数据,并将所述物理特性数据与预设的参照值范围进行对比;当所述物理特性数据超出所述参照值范围,控制注射泵按照预设的注射流速向所述射频操作对象注射液体,以将所述物理特征数据调整为位于所述参照值范围内;当所述注射泵的注射流速达到极限值时,且所述物理特性数据超出所述参照值范围,则根据所述多极射频探头中电极的电参数,计算所述射频主机的功率调整值;根据所述第一功率和所述功率调整值,将射频输出功率调整为第二功率后输出。
- 根据权利要求1所述的方法,其特征在于,所述射频操作对象的物理特性数据包括:所述射频操作对象的温度值。
- 根据权利要求2所述的方法,其特征在于,所述当射频主机按照第一功率发出的射频能量通过多电极射频探头作用在射频操作对象上时,实时检测所述射频操作对象的物理特性数据之前包括:获取输入界面输入的温度值的最大值和最小值,并根据所述温度值的最大值和最小值生成所述预设的参照值范围;或者,从服务器的数据库中获取射频操作的历史数据,根据所述历史数据中的所述操作对象的温度值,得到所述预设的参照值范围。
- 根据权利要求3所述的方法,其特征在于,所述当所述物理特性数据超出所述参照值范围,控制注射泵按照预设的注射流速向所述射频操作对象注射液体,以将所述物理特征数据调整为位于所述参照值范围内包括:当所述温度值大于所述参照值范围的最高值,控制所述注射泵按照预设 的第一注射流速向所述射频操作对象注射液体,以将所述温度值调整为小于所述参照值范围的最大值,所述第一注射流速大于当前注射流速;当所述温度值小于所述参照值范围的最小值,控制所述注射泵按照预设的第二注射流速向所述射频操作对象注射液体,以将所述温度值调整为大于所述参照值范围的最小值,所述第二注射流速小于当前注射流速。
- 根据权利要求1-4任一项所述的方法,其特征在于,所述根据所述多极射频探头中电极的电参数,计算所述射频主机的功率调整值包括:根据所述多电极射频探头的各电极的最小阻抗值,确定需要设定的总功率;检测当前所述多电极射频探头的实时总功率,根据所述需要设定的总功率和所述实时总功率,通过预设的PID算法计算得到所述射频主机的功率调整值。
- 根据权利要求5所述的方法,其特征在于,所述根据所述多电极射频探头的各电极的最小阻抗值,确定需要设定的总功率包括:确定所述多电极射频探头的多个电极中阻抗值最小的单个单极;根据所述单个电极的阻抗值、所述单个电极的预设功率,以及所述多电极射频探头除所述单个电极之外的其余各电极的阻抗值,计算得到所述其余各电极的功率,并将所述各电极的功率之和作为所述需要设定的总功率。
- 根据权利要求7所述的方法,其特征在于,所述根据所述第一功率和 所述功率调整值,将射频输出功率调整为第二功率后输出包括:当所述操作对象的温度值高于所述参照值范围的最高值时,将所述第一功率减去所述功率调整值得到所述第二功率,并将射频输出功率调整为所述第二功率后输出。
- 一种射频主机,其特征在于,包括:检测模块,用于当射频主机按照第一功率发出的射频能量通过多电极射频探头作用在射频操作对象上时,实时检测所述射频操作对象的物理特性数据,并将所述物理特性数据与预设的参照值范围进行对比;控制模块,用于当所述物理特性数据超出所述参照值范围,控制注射泵按照预设的注射流速向所述射频操作对象注射液体,以将所述物理特征数据调整为位于所述参照值范围内;所述控制模块,还用于当所述注射泵的注射流速达到极限值时,且所述物理特性数据超出所述参照值范围,则根据所述多极射频探头中电极的电参数,计算所述射频主机的功率调整值;所述控制模块,还用于根据所述第一功率和所述功率调整值,将射频输出功率调整为第二功率后输出。
- 一种射频主机,其特征在于,包括:存储器和处理器;所述存储器存储有可执行程序代码;与所述存储器耦合的所述处理器,调用所述存储器中存储的所述可执行程序代码,执行如权利要求1至8中的任一项所述的多电极射频探头的功率调整方法。
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6059780A (en) * | 1995-08-15 | 2000-05-09 | Rita Medical Systems, Inc. | Multiple antenna ablation apparatus and method with cooling element |
CN1631327A (zh) * | 2004-12-23 | 2005-06-29 | 上海交通大学 | 水冷式射频肿瘤消融治疗系统的智能化控制方法 |
CN200942123Y (zh) * | 2006-03-30 | 2007-09-05 | 迈德医疗科技(上海)有限公司 | 用于射频消融治疗的射频产生及控制装置 |
CN202942209U (zh) * | 2012-11-14 | 2013-05-22 | 心诺普医疗技术(北京)有限公司 | 射频消融导管用灌注泵 |
CN106580465A (zh) * | 2015-10-16 | 2017-04-26 | 韦伯斯特生物官能(以色列)有限公司 | 用于基于肾消融响应来控制导管功率的系统和方法 |
CN107981928A (zh) * | 2017-12-06 | 2018-05-04 | 北京博海康源医疗器械有限公司 | 一种消融电极温度控制装置及其消融电极温度控制方法 |
CN110897710A (zh) * | 2019-11-30 | 2020-03-24 | 杭州堃博生物科技有限公司 | 肺部神经消融系统的控制方法、系统以及计算机介质 |
CN112773497A (zh) * | 2020-12-31 | 2021-05-11 | 杭州堃博生物科技有限公司 | 射频操作中的数据调整方法和射频主机 |
CN112807071A (zh) * | 2020-12-31 | 2021-05-18 | 杭州堃博生物科技有限公司 | 射频操作中的数据调整方法和射频主机 |
CN113143443A (zh) * | 2020-12-31 | 2021-07-23 | 杭州堃博生物科技有限公司 | 多电极射频探头的功率调整方法和射频主机 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6203541B1 (en) * | 1999-04-23 | 2001-03-20 | Sherwood Services Ag | Automatic activation of electrosurgical generator bipolar output |
ES2255514T3 (es) * | 2000-10-17 | 2006-07-01 | Asthmatx, Inc. | Modificacion de las vias respiratorias mediante la aplicacion de energia. |
CN100450456C (zh) * | 2001-09-28 | 2009-01-14 | 锐达医疗系统公司 | 阻抗控制的组织切除仪器 |
US6855141B2 (en) * | 2002-07-22 | 2005-02-15 | Medtronic, Inc. | Method for monitoring impedance to control power and apparatus utilizing same |
US7553309B2 (en) * | 2004-10-08 | 2009-06-30 | Covidien Ag | Electrosurgical system employing multiple electrodes and method thereof |
CN2808074Y (zh) * | 2005-04-25 | 2006-08-23 | 付洁宇 | 多路射频消融治疗仪 |
CN201987659U (zh) * | 2011-01-06 | 2011-09-28 | 成都维信电子科大新技术有限公司 | 一种自动识别的手术治疗刀头电极组件 |
US20140276755A1 (en) * | 2013-03-12 | 2014-09-18 | Boston Scientific Scimed, Inc. | Medical systems and methods for modulating nerves |
US9956035B2 (en) * | 2014-03-27 | 2018-05-01 | Biosense Webster (Israel) Ltd. | Temperature measurement in catheter |
WO2018006086A1 (en) * | 2016-07-01 | 2018-01-04 | Cynosure, Inc. | Non-invasive, uniform and non-uniform rf methods and systems related applications |
CN107822707B (zh) * | 2017-11-30 | 2024-02-23 | 中国科学技术大学 | 一种射频消融方法及系统 |
CN108324366A (zh) * | 2017-12-13 | 2018-07-27 | 武汉市海沁医疗科技有限公司 | 射频消融电极及其控制系统 |
GB2582306B (en) * | 2019-03-18 | 2021-03-24 | Cook Medical Technologies Llc | Apparatus and method of occluding a vessel by ablation |
-
2020
- 2020-12-31 CN CN202011640891.9A patent/CN113143443B/zh active Active
-
2021
- 2021-12-29 JP JP2023540460A patent/JP2024502060A/ja active Pending
- 2021-12-29 EP EP21914573.7A patent/EP4272672A1/en active Pending
- 2021-12-29 WO PCT/CN2021/142752 patent/WO2022143841A1/zh active Application Filing
- 2021-12-29 KR KR1020237026172A patent/KR20230127328A/ko unknown
-
2023
- 2023-06-30 US US18/346,072 patent/US20230346457A1/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6059780A (en) * | 1995-08-15 | 2000-05-09 | Rita Medical Systems, Inc. | Multiple antenna ablation apparatus and method with cooling element |
CN1631327A (zh) * | 2004-12-23 | 2005-06-29 | 上海交通大学 | 水冷式射频肿瘤消融治疗系统的智能化控制方法 |
CN200942123Y (zh) * | 2006-03-30 | 2007-09-05 | 迈德医疗科技(上海)有限公司 | 用于射频消融治疗的射频产生及控制装置 |
CN202942209U (zh) * | 2012-11-14 | 2013-05-22 | 心诺普医疗技术(北京)有限公司 | 射频消融导管用灌注泵 |
CN106580465A (zh) * | 2015-10-16 | 2017-04-26 | 韦伯斯特生物官能(以色列)有限公司 | 用于基于肾消融响应来控制导管功率的系统和方法 |
CN107981928A (zh) * | 2017-12-06 | 2018-05-04 | 北京博海康源医疗器械有限公司 | 一种消融电极温度控制装置及其消融电极温度控制方法 |
CN110897710A (zh) * | 2019-11-30 | 2020-03-24 | 杭州堃博生物科技有限公司 | 肺部神经消融系统的控制方法、系统以及计算机介质 |
CN112773497A (zh) * | 2020-12-31 | 2021-05-11 | 杭州堃博生物科技有限公司 | 射频操作中的数据调整方法和射频主机 |
CN112807071A (zh) * | 2020-12-31 | 2021-05-18 | 杭州堃博生物科技有限公司 | 射频操作中的数据调整方法和射频主机 |
CN113143443A (zh) * | 2020-12-31 | 2021-07-23 | 杭州堃博生物科技有限公司 | 多电极射频探头的功率调整方法和射频主机 |
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