CN110051421A - Electrosurgery unit and its control method - Google Patents
Electrosurgery unit and its control method Download PDFInfo
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- CN110051421A CN110051421A CN201910439127.6A CN201910439127A CN110051421A CN 110051421 A CN110051421 A CN 110051421A CN 201910439127 A CN201910439127 A CN 201910439127A CN 110051421 A CN110051421 A CN 110051421A
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- A—HUMAN NECESSITIES
- 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
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- A—HUMAN NECESSITIES
- 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
- 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
- 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
- A61B2018/00589—Coagulation
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- A—HUMAN NECESSITIES
- 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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00696—Controlled or regulated parameters
- A61B2018/00755—Resistance or impedance
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- A—HUMAN NECESSITIES
- 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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00791—Temperature
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- A—HUMAN NECESSITIES
- 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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00875—Resistance or impedance
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- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses a kind of electrosurgery unit and its control method, which includes biological tissue's electrical signal collection device, controller and throughput duty cycle adjustment unit, and biological tissue's electrical signal collection device is set to electrode front end；Controller is connected with biological tissue's electrical signal collection device, and controller obtains the signal of biological tissue's electrical signal collection device acquisition and judges whether the signal is in the corresponding pre-set interval of optimum treatment effect；When biological tissue's electric signal that monitoring control devices arrive is less than or equal to the minimum value of the pre-set interval, controller reduces the duty ratio of throughput, when the electric signal of collected biological tissue is greater than or equal to pre-set interval maximum value, closed gas flow output.The present invention passes through the adjusting of argon flow duty ratio, realizes the control of output energy, had not only saved the dosage of argon gas, but also does not need control voltage, electric current and power, simplifies control flow, improves the reliability and safety of control.
Description
Technical field
The present invention relates to electrosurgery unit technical field, in particular to a kind of electrosurgery unit and its control method.
Background technique
The basic role of APC (Argon plasma coagulation, Argon Plasma Coagulation) blood coagulation is with indifferent gas
Body (such as argon gas) jet-stream wind blows away the blood vessel that local hematocele appears bleeding, and argon gas ionization, conduction are completed in electrode excitation electric discharge
High-frequency current to tissue generates fuel factor and is best suited for sensitive organization to reach the therapeutic effect of blood coagulation or tissue devitalization
The blood coagulation of blood oozing from the wound surface and thin vessels and inactivation tissue.
" non-contact " main points are especially emphasized when stopping blooding using APC, because APC hemostasis must first make argon gas ionization excitation, so
After answering first close tissue excitation argon gas to be ionized into argon plasma progress coagulation, slow separate tissue, thermal damage is smaller at this time, in view of
Above-mentioned reason, APC have more advantage to the blood coagulation or inactivation of important nerve surface.
It discloses a kind of electrosurgery simulation system in CN103417292A, realizes the defeated of constant voltage mode or constant power mode
Out, constant voltage mode refers to that the voltage peak-to-peak value of electrosurgery simulation system output waveform is constant, and constant power mode refers to electrosurgery mould
The performance number of quasi- system output is constant.Constant voltage or firm power are easy to because argon plasma carries energy and continues at certain
One small range forms the case where carbonization, eschar or thermal damage's depth increase.It is adjusted in CN201320827606.3 by user
One or more energy transportation parameters (for example, power, electric current, voltage, energy etc.) realize the adjusting of intensity.Currently, not yet
The scheme for realizing energy output control is adjusted by argon flow.
Summary of the invention
The present invention is directed at least solve the technical problems existing in the prior art, a kind of electrosurgery is especially innovatively proposed
Equipment and its control method.
In order to realize above-mentioned purpose of the invention, according to the first aspect of the invention, the present invention provides a kind of electricity is outer
Section's equipment, including the electrode with inert gas nozzle and the power generator being connect with the electrode, further includes: biological tissue
Electrical signal collection device, biological tissue's electrical signal collection device include biological tissue's impedance collector, biological tissue's temperature acquisition
Device, at least one of biological tissue's water content collector or their any combination, biological tissue's electrical signal collection device
It is set to electrode front end；
Controller, the controller are connected with biological tissue's electrical signal collection device, and controller obtains biological tissue's electricity
The signal of signal picker acquisition simultaneously judges whether the signal is in the corresponding pre-set interval of optimum treatment effect；
Throughput duty cycle adjustment unit, the throughput duty cycle adjustment unit are connect with controller, when controller is supervised
The biological tissue's electric signal measured be equal to the pre-set interval minimum value or and the two smaller than the minimum value of pre-set interval it
When difference is within threshold range, controller reduces the duty ratio of throughput；When the electric signal of collected biological tissue is greater than
Pre-set interval minimum value and when being less than pre-set interval maximum value, maintains the duty ratio of throughput constant, when collected biological group
When the electric signal knitted is greater than or equal to pre-set interval maximum value, closed gas flow output.
Electrosurgery unit of the invention is relative to traditional APC, and the present invention is the pulse feature energy that can control, in unit
The energy that tissue is transmitted in time also can control, energy give number with design pulse duty factor direct proportionality；
Reach the adjusting control of thermal damage's depth.
The present invention passes through the adjusting of argon flow duty ratio, realizes the control of output energy, had both saved the dosage of argon gas,
Control voltage, electric current and power are not needed again, are simplified control flow, are improved the reliability and safety of control.
In the preferred embodiment of the present invention, the setting method of the pre-set interval are as follows:
Multiple clinical datas are acquired, the clinical data includes clinical therapeutic efficacy and its corresponding biological tissue's electric signal
Data, the clinical therapeutic efficacy have therapeutic effect grade；
Clinical data is divided into training set, test set and verifying collection；
Machine learning model is established, using training set model of fit, optimal model is found out using verifying collection and combines, utilize
Verifying the set pair analysis model is verified, obtain same biological tissue's electric signal different sections or several biological tissue's electric signals
The corresponding therapeutic effect grade of the combination in different sections.
To obtain the corresponding electric signal section of different treatment effects grade.
In order to realize above-mentioned purpose of the invention, according to the first aspect of the invention, the present invention provides a kind of electricity is outer
Section's apparatus control method comprising following steps:
S1, electrosurgery unit igniting, controller judges whether it is to light a fire for the first time, when being to light a fire for the first time, electrosurgery
Inert gas is excited into ion with the first voltage value and forms current loop by equipment, and the air distance of electrode and tissue is maintained at
Presetting to excite to be formed within the scope of current loop, light a fire if not first time, then follow the steps S2；
S2 is adopted in ignition gap positioned at the biological tissue of biological tissue's electrical signal collection device contact treatment of electrode front end
Collection biological tissue's electric signal is simultaneously transferred to controller；
S3, controller obtain the signal of biological tissue's electrical signal collection device acquisition and judge whether the signal is in optimal
In the corresponding pre-set interval of therapeutic effect；
S4, when monitoring control devices to biological tissue's electric signal be equal to the pre-set interval minimum value or compare preset areas
Between minimum value is small and the difference of the two is within threshold range, then controller reduces the duty ratio of throughput, according to new adjustment
Duty ratio igniting, and return step S2；
When the electric signal of collected biological tissue is greater than pre-set interval minimum value and is less than pre-set interval maximum value, dimension
The duty ratio for holding throughput is constant and light a fire, and return step S2；
When the electric signal of collected biological tissue is greater than or equal to pre-set interval maximum value, closed gas flow output.
The present invention passes through the adjusting of inert gas flow amount duty ratio, realizes the control of output energy, has both saved inertia
The dosage of gas, and control voltage, electric current and power are not needed, control flow is simplified, the reliability and peace of control are improved
Quan Xing.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of electrosurgery unit in a kind of preferred embodiment of the present invention；
Fig. 2 is the flow chart of electrosurgery unit control method in a kind of preferred embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
, can also indirectly connected through an intermediary, for the ordinary skill in the art to be to be connected directly, it can basis
Concrete condition understands the concrete meaning of above-mentioned term.
The present invention provides a kind of electrosurgery units comprising electrode with inert gas nozzle and connect with the electrode
Power generator, specific structure can use the existing electrosurgery unit structure with Argon Plasma Coagulation.Below with
Equipment is illustrated for using argon gas.
The electrosurgery unit further includes biological tissue's electrical signal collection device, controller and throughput duty cycle adjustment unit.
Biological tissue's electrical signal collection device includes biological tissue's impedance collector, biological tissue's temperature sampler, biological tissue's water content
At least one of collector or their any combination, biological tissue's electrical signal collection device are set to electrode front end, specifically may be used
It is set side by side.
Bio-impedance sensor can be used in biological tissue's impedance collector, biological temperature can be used in biological tissue's temperature sampler
The near-infrared detection apparatus of tissue moisture can be used in degree sensor, biological tissue's water content collector.
Controller is connected with biological tissue's electrical signal collection device, and controller obtains biological tissue's electrical signal collection device and adopts
The signal of collection simultaneously judges whether the signal is in the corresponding section of optimum treatment effect.The setting method of the pre-set interval
Are as follows:
Multiple clinical datas are acquired, the clinical data includes clinical therapeutic efficacy and its corresponding biological tissue's electric signal
Data, the clinical therapeutic efficacy have therapeutic effect grade, for example, be arranged it is excellent, in, difference etc..It can be according to thermal damage's depth, knot
The effect of scab, carbonization, hemostasis etc. is configured.Such as thermal damage's depth as shallow, without incrustation, the case where Non-carbonized, hemostasis is top grade
Therapeutic effect；Thermal damage's depth is deep, has incrustation, and having carbonization, having two kinds of situations in bleeding is poor grade therapeutic effect；Positioned at it is excellent with
It is intermediate therapeutic effect between difference.
Clinical data is divided into training set, test set and verifying collection.Establishing machine learning model (specifically can be used random gloomy
The models such as woods or deep learning), using training set model of fit, optimal model is found out using verifying collection and is combined, verifying is utilized
The set pair analysis model is verified, and the different sections of same biological tissue's electric signal or the difference of several biological tissue's electric signals are obtained
The corresponding therapeutic effect grade of the combination in section.Its corresponding biological tissue's electric signal section is obtained according to therapeutic effect grade.
Throughput duty cycle adjustment unit is connect with controller, when biological tissue's electric signal that monitoring control devices arrive is equal to institute
When the minimum value or smaller than the minimum value of pre-set interval and the two difference for stating pre-set interval are within threshold range, controller will
The duty ratio of throughput reduces；When the electric signal of collected biological tissue is greater than pre-set interval minimum value and is less than pre-set interval
When maximum value, maintain the duty ratio of throughput constant；When the electric signal of collected biological tissue is greater than or equal to pre-set interval
When maximum value, closed gas flow output.
In the preferred embodiment of the present invention, as shown in Figure 1, throughput duty cycle adjustment unit includes being located at gas
The air valve of output channel is flowed, the air valve realizes the adjusting of gas output duty ratio by the pwm signal of controller.It can from figure
See, biological tissue's electric signal of sensor acquisition is transferred to controller after analog/digital conversion, and controller obtains biological tissue's telecommunications
Number and judge whether the signal is in the corresponding section of optimum treatment effect.When biological tissue's telecommunications that monitoring control devices arrive
When number being less than or equal to the minimum value of the pre-set interval, controller reduces the duty ratio of throughput (specifically can line at any time
The reduction duty ratio of property；Or the several duty ratio grades of setting, extension at any time gradually decrease duty ratio), when collected
When the electric signal of biological tissue is greater than or equal to pre-set interval maximum value, closed gas flow output.
The present invention also provides a kind of electrosurgery unit control methods, as shown in Fig. 2, it includes the following steps:
S1, electrosurgery unit igniting, controller judges whether it is to light a fire for the first time, when being to light a fire for the first time, electrosurgery
Argon gas is excited into argon ion with the first voltage value and forms current loop by equipment, and the air distance of electrode and tissue is maintained at pre-
First setting can excite to be formed within the scope of current loop, light a fire if not first time, then follow the steps S2；
S2 is adopted in ignition gap positioned at the biological tissue of biological tissue's electrical signal collection device contact treatment of electrode front end
Collection biological tissue's electric signal is simultaneously transferred to controller；
S3, controller obtain the signal of biological tissue's electrical signal collection device acquisition and judge whether the signal is in optimal
In the corresponding pre-set interval of therapeutic effect；
S4, when biological tissue's electric signal that monitoring control devices arrive is smaller than the minimum value of pre-set interval and the difference of the two is in threshold value
When except range, then controller maintains the duty ratio of throughput constant and lights a fire, return step S2；
When monitoring control devices to biological tissue's electric signal be equal to the pre-set interval minimum value or compare pre-set interval
Minimum value is small and the difference of the two is within threshold range, then controller reduces the duty ratio of throughput, according to what is newly adjusted
Duty ratio igniting, and return step S2；The threshold range is the value less than pre-set interval minimum value, and value can be according to reality
Border situation setting, such as 0.1* pre-set interval minimum value or 0.2* pre-set interval minimum value；
When the electric signal of collected biological tissue is greater than pre-set interval minimum value and is less than pre-set interval maximum value, dimension
The duty ratio for holding throughput is constant and light a fire, and return step S2；
When the electric signal of collected biological tissue is greater than or equal to pre-set interval maximum value, closed gas flow output.
The present invention passes through the adjusting of argon flow duty ratio, realizes the control of output energy, had both saved the dosage of argon gas,
Control voltage, electric current and power are not needed again, are simplified control flow, are improved the reliability and safety of control.
The present invention is that the duty ratio control of throughput is added in the electrosurgery equipment with APC (Argon plasma coagulation),
Typical duty cycle pulse frequency is 1-16Hz, and voltage excites argon gas electrode front end, argon molecule is made to separate to form argon ion, argon from
The energy transmission that son carries arrives tissue, carries out heating to tissue until tissue degeneratiaon achievees the purpose that inactivation tissue or blood coagulation.
To realize reduction carbonization and eschar, thermal damage's depth is controlled.
It needs a higher voltage that argon gas is excited into argon ion when lighting a fire first time and forms current loop, and argon gas electricity
The air distance of pole and tissue, which is maintained at, to be preset and can excite to be formed within the scope of current loop.
After lighting a fire successfully, the electric signal of the biological tissue of controller real-time monitoring acquisition is (such as: impedance, temperature, water content
Deng) be analyzed and processed.It is studied according to clinical data, when reaching the clinically-optimal effect, is acquired after tissue ablation or blood coagulation
Associated electrical signals can be relatively stable in certain section, when the electric signal of the collected biological tissue of monitoring control devices is close to section
When minimum value (be less than and in threshold range or be equal to), controller immediately subtracts the duty ratio of pulse APC electric current and throughput
It is small, to prevent extra heat cauterise tissue from carbonization occurs or reduce the thermal damage caused by non-lesion tissue, and the thermal damage
Depth and width can be adjusted by control, when the electric signal of collected biological tissue is more than or equal to relatively stable
Section maximum value when, immediately close output.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (5)
1. a kind of electrosurgery unit, including the electrode with inert gas nozzle and the power generator being connect with the electrode,
It is characterized by further comprising:
Biological tissue's electrical signal collection device, biological tissue's electrical signal collection device include biological tissue's impedance collector, biology
Tissue temperature collector, at least one of biological tissue's water content collector or their any combination, the biological tissue
Electrical signal collection device is set to electrode front end；
Controller, the controller are connected with biological tissue's electrical signal collection device, and controller obtains biological tissue's electric signal
The signal of collector acquisition simultaneously judges whether the signal is in the corresponding pre-set interval of optimum treatment effect；
Throughput duty cycle adjustment unit, the throughput duty cycle adjustment unit are connect with controller, when monitoring control devices arrive
Biological tissue's electric signal be equal to the pre-set interval minimum value or smaller than the minimum value of pre-set interval and the two difference exist
When within threshold range, controller reduces the duty ratio of throughput；It is preset when the electric signal of collected biological tissue is greater than
Section minimum value and be less than pre-set interval maximum value when, maintain the duty ratio of throughput constant；When collected biological tissue
When electric signal is greater than or equal to pre-set interval maximum value, closed gas flow output.
2. electrosurgery unit according to claim 1, which is characterized in that the setting method of the pre-set interval are as follows:
Multiple clinical datas are acquired, the clinical data includes clinical therapeutic efficacy and its corresponding biological tissue's telecommunications number
According to the clinical therapeutic efficacy has therapeutic effect grade；
Clinical data is divided into training set, test set and verifying collection；
Machine learning model is established, using training set model of fit, optimal model is found out using verifying collection and combines, utilize verifying
The set pair analysis model is verified, and the different sections of same biological tissue's electric signal or the difference of several biological tissue's electric signals are obtained
The corresponding therapeutic effect grade of the combination in section obtains optimal grade therapeutic effect corresponding biological tissue's electric signal section.
3. a kind of electrosurgery unit control method, which comprises the steps of:
S1, electrosurgery unit igniting, controller judges whether it is to light a fire for the first time, when being to light a fire for the first time, electrosurgery unit
Inert gas is excited into ion with the first voltage value and forms current loop, and the air distance of electrode and tissue is maintained at preparatory
Setting can excite to be formed within the scope of current loop, light a fire if not first time, then follow the steps S2；
S2, in ignition gap, positioned at the biological tissue of biological tissue's electrical signal collection device contact treatment of electrode front end, acquisition life
Object organizing telecommunications number are simultaneously transferred to controller；
S3, controller obtain the signal of biological tissue's electrical signal collection device acquisition and judge whether the signal is in optimum treatment
In the corresponding pre-set interval of effect；
S4, when biological tissue's electric signal that monitoring control devices arrive is equal to the minimum value of the pre-set interval or than pre-set interval
Minimum value is small and the difference of the two is within threshold range, then controller reduces the duty ratio of throughput, accounts for according to what is newly adjusted
Sky is than lighting a fire, and return step S2；
When the electric signal of collected biological tissue is greater than pre-set interval minimum value and is less than pre-set interval maximum value, gas is maintained
The duty ratio of flow is constant and lights a fire, and return step S2；
When the electric signal of collected biological tissue is greater than or equal to pre-set interval maximum value, closed gas flow output.
4. control method according to claim 3, which is characterized in that biological tissue's electrical signal collection device, the life
Object organizing telecommunications collector includes biological tissue's impedance collector, biological tissue's temperature sampler, and biological tissue's water content is adopted
At least one of storage or their any combination.
5. control method according to claim 3, which is characterized in that the setting method of the pre-set interval are as follows:
Multiple clinical datas are acquired, the clinical data includes clinical therapeutic efficacy and its corresponding biological tissue's telecommunications number
According to the clinical therapeutic efficacy has therapeutic effect grade；
Clinical data is divided into training set, test set and verifying collection；
Machine learning model is established, using training set model of fit, optimal model is found out using verifying collection and combines, utilize verifying
The set pair analysis model is verified, and the different sections of same biological tissue's electric signal or the difference of several biological tissue's electric signals are obtained
The corresponding therapeutic effect grade of the combination in section；
Obtain optimal grade therapeutic effect corresponding biological tissue's electric signal section.
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| CN201910439127.6A CN110051421A (en) | 2019-05-24 | 2019-05-24 | Electrosurgery unit and its control method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050171528A1 (en) * | 2004-02-03 | 2005-08-04 | Sartor Joe D. | Self contained, gas-enhanced surgical instrument |
| CN101332083A (en) * | 2007-06-28 | 2008-12-31 | 韦伯斯特生物官能公司 | Optical pyrometric catheter for tissue temperature monitoring during cardiac ablation |
| CN104918653A (en) * | 2013-01-14 | 2015-09-16 | 菲力格林公司 | Electrical stimulation and/or iontophoresis device having means for varying the voltage on the basis of the resistivity of the skin of a user |
-
2019
- 2019-05-24 CN CN201910439127.6A patent/CN110051421A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050171528A1 (en) * | 2004-02-03 | 2005-08-04 | Sartor Joe D. | Self contained, gas-enhanced surgical instrument |
| CN101332083A (en) * | 2007-06-28 | 2008-12-31 | 韦伯斯特生物官能公司 | Optical pyrometric catheter for tissue temperature monitoring during cardiac ablation |
| CN104918653A (en) * | 2013-01-14 | 2015-09-16 | 菲力格林公司 | Electrical stimulation and/or iontophoresis device having means for varying the voltage on the basis of the resistivity of the skin of a user |
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