CN109646109B - Self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue - Google Patents
Self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue Download PDFInfo
- Publication number
- CN109646109B CN109646109B CN201910124064.5A CN201910124064A CN109646109B CN 109646109 B CN109646109 B CN 109646109B CN 201910124064 A CN201910124064 A CN 201910124064A CN 109646109 B CN109646109 B CN 109646109B
- Authority
- CN
- China
- Prior art keywords
- signal
- target
- processor
- biological tissue
- cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- A61B2018/00607—Coagulation and cutting with the same instrument
-
- 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
-
- 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
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1412—Blade
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue. The method comprises the following steps: controlling a cutter driving module to generate a driving signal, controlling a signal generator to generate a detection signal with preset frequency, acquiring a feedback signal generated by a target biological tissue acquired by a signal acquisition unit, calculating the biological impedance of the target biological tissue, and determining a target current value or a target voltage value of the driving signal required to be generated by the cutter driving module according to the biological impedance of the target biological tissue; and adjusting the driving signal generated by the cutter driving module according to the target current value or the target voltage value. The technical scheme provided by the embodiment of the invention can determine the target current value or the target voltage value of the driving signal suitable for the target biological tissue under the biological impedance according to the biological impedance of the target biological tissue, and further adjust the driving signal generated by the cutter driving module, so that the cutter works in a state of high cutting efficiency and small thermal damage.
Description
Technical Field
The embodiment of the invention relates to the technical field of medical instruments, in particular to a self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue.
Background
Modern electrosurgery has already well solved the shortcoming of hemorrhage in traditional scalpel art, and its the most extensive application is high frequency electrotome and ultrasonic knife, and wherein, ultrasonic knife can make treatment tool bit carry out mechanical oscillation with certain frequency under the alternating current excitation signal of certain frequency, makes water molecule vaporization in the tissue, albumen hydrogen bond fracture, and the cell disintegrates, and then makes the tissue cut open or solidify, because the tool bit temperature is lower, heat damage and potential danger are less relatively.
The human body contains various biological tissue types, such as muscles, fat, nerves, blood vessels, etc., the biological impedance of different types of biological tissue is greatly different, so the optimal current value of the applied alternating current excitation signal is different, however, the ultrasonic knife in the prior art cannot generate the alternating current excitation signal aiming at the biological tissue type according to the biological impedance of the biological tissue, so that the cutting hemostasis process of the biological tissue is caused by large thermal injury or the cutting efficiency is not high.
Disclosure of Invention
The invention provides a self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue, which are used for adjusting a driving signal generated by a knife driving module so that a knife works in real time in a state of high cutting efficiency and small thermal injury.
In a first aspect, an embodiment of the present invention provides an ultrasonic knife tissue adaptive cutting hemostasis control method, including:
the control signal generator generates a detection signal with a preset frequency, so that the detection signal with the preset frequency is transmitted to the target biological tissue clamped by the cutter through the cutter;
acquiring a feedback signal generated by the target biological tissue acquired by the signal acquisition device, and calculating the biological impedance of the target biological tissue;
acquiring a target current value or a target voltage value of a driving signal required to be generated by a cutter driving module according to the biological impedance of the target biological tissue;
and adjusting the driving signal generated by the cutter driving module according to the target current value or the target voltage value.
Optionally, before the controlling the signal generator to generate the detection signal with the preset frequency, the method further includes: and acquiring the starting signal, and executing the operation of controlling the signal generator to generate the detection signal with the preset frequency after acquiring the starting signal.
Optionally, obtaining a target current value or a target voltage value of a driving signal required to be generated by the cutter driving module according to the bio-impedance of the target biological tissue includes:
and inquiring a biological tissue database according to the biological impedance of the target biological tissue to determine a target current value or a target voltage value of the driving signal required by the target biological tissue.
Optionally, the tool driving module includes an ultrasonic driving unit and an ultrasonic transducer, and adjusts a driving signal generated by the tool driving module according to the target current value or the target voltage value, including:
adjusting the effective current value of the alternating current excitation signal generated by the ultrasonic driving unit according to the target current value so as to adjust the vibration amplitude of the mechanical vibration signal generated by the ultrasonic transducer; or, the effective voltage value of the alternating current excitation signal generated by the ultrasonic driving unit is adjusted according to the target voltage value so as to adjust the vibration amplitude of the mechanical vibration signal generated by the ultrasonic transducer.
Optionally, after obtaining the feedback signal generated by the target biological tissue collected by the signal collector and calculating the bio-impedance of the target biological tissue, the method further includes:
and sending the biological impedance of the target biological tissue to the display module to instruct the display module to display the biological impedance of the target biological tissue in real time.
In a second aspect, an embodiment of the present invention further provides an ultrasonic knife tissue adaptive cutting hemostasis control device, including: the device comprises a processor, a signal generator, a cutter, a signal collector and a cutter driving module;
the processor is respectively connected with the signal generator, the signal collector and the cutter driving module, and the cutter is connected with the cutter driving module;
the signal generator is used for generating a detection signal with a preset frequency;
the cutter is used for transmitting a detection signal with a preset frequency to a target biological tissue held by the cutter;
the signal collector is used for collecting feedback signals generated by target biological tissues;
the processor is used for controlling the signal generator to generate a detection signal with a preset frequency so that the detection signal with the preset frequency is transmitted to the target biological tissue clamped by the cutter through the cutter; acquiring a feedback signal generated by the target biological tissue acquired by the signal acquisition device, and calculating the biological impedance of the target biological tissue; determining a target current value or a target voltage value of a driving signal required to be generated by a cutter driving module according to the biological impedance of the target biological tissue; adjusting a driving signal generated by a cutter driving module according to the target current value or the target voltage value;
the cutter driving module is used for generating a driving signal so as to enable the cutter to cut or stop bleeding of the target biological tissue.
Optionally, the device further comprises an excitation switch, a display module and a power supply;
the excitation switch is connected with the processor; the display module is connected with the processor; the power supply is respectively connected with the processor, the signal generator, the signal collector, the excitation switch, the display module and the cutter driving module;
the excitation switch is used for generating a starting signal so as to instruct the processor to execute the operation of controlling the cutter driving module to generate the driving signal;
the display module is used for displaying the biological impedance of the target biological tissue transmitted by the processor;
the power supply is used for supplying power to the processor, the signal generator, the signal collector, the excitation switch, the display module and the cutter driving module.
Optionally, the cutter driving module includes an ultrasonic driving unit and an ultrasonic transducer;
the ultrasonic driving unit is respectively connected with the processor, the power supply and the ultrasonic transducer, and the ultrasonic transducer is connected with the cutter;
the ultrasonic driving unit is used for generating an alternating current excitation signal;
the ultrasonic transducer is used for converting the alternating current excitation signal into a mechanical vibration signal so as to enable the cutter to perform hemostasis or cutting operation on the target biological tissue.
Optionally, the ultrasonic knife tissue self-adaptive cutting hemostasis control device comprises an ultrasonic knife and a host;
the processor comprises a first processor and a second processor;
the first processor is respectively connected with the signal generator, the signal collector, the excitation switch, the power supply and the second processor;
the second processor is connected with the ultrasonic driving unit, the power supply and the display module respectively;
the first processor is used for acquiring the starting signal generated by the excitation switch and executing the operation of controlling the control signal generator to generate the detection signal with the preset frequency, so that the detection signal with the preset frequency is transmitted to the target biological tissue clamped by the cutter through the cutter; acquiring a feedback signal generated by the target biological tissue acquired by the signal acquisition unit, calculating the biological impedance of the target biological tissue, and sending the biological impedance of the target biological tissue to the second processor;
the second processor is used for acquiring the biological impedance of the target biological tissue sent by the first processor, determining a target current value or a target voltage value of a driving signal required to be generated by the cutter driving module according to the biological impedance of the target biological tissue, and adjusting the effective current value of an alternating current excitation signal generated by the ultrasonic driving unit according to the target current value so as to adjust the vibration amplitude of a mechanical vibration signal generated by the ultrasonic transducer; or, the effective voltage value of the alternating current excitation signal generated by the ultrasonic driving unit is adjusted according to the target voltage value so as to adjust the vibration amplitude of the mechanical vibration signal generated by the ultrasonic transducer;
the first processor, the signal generator, the cutter, the signal collector, the excitation switch and the ultrasonic transducer are integrated on the ultrasonic knife;
the second processor, the ultrasonic driving unit, the power supply and the display module are integrated on the host.
Optionally, the first processor and the second processor communicate with each other through a cable;
or the ultrasonic scalpel further comprises a first communication module, the host further comprises a second communication module, and the first processor and the second processor are communicated through the first communication module and the second communication module.
According to the self-adaptive cutting hemostasis control method for the tissue of the ultrasonic knife, provided by the embodiment of the invention, the target current value or the target voltage value of the driving signal suitable for the target biological tissue under the biological impedance is obtained by calculating the biological impedance of the target biological tissue in real time, and then the driving signal generated by the knife driving module is adjusted, so that the knife works in a state of high cutting efficiency and small thermal injury in real time, the problems of large thermal injury or low cutting efficiency caused by the fact that the ultrasonic knife cannot be controlled according to the biological impedance of the target biological tissue in a targeted manner in the prior art are solved, and the effects of high cutting efficiency and small thermal injury are achieved.
Drawings
FIG. 1 is a schematic diagram illustrating a hemostatic control method for tissue adaptive cutting with an ultrasonic blade according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a cutting tool according to an embodiment of the present invention;
FIG. 3 is a graph of cutting efficiency versus current for an ultrasonic blade according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an ultrasonic-knife tissue adaptive-cutting hemostasis control device provided by an embodiment of the invention;
FIG. 5 is a schematic structural diagram of another ultrasonic-knife tissue adaptive-cutting hemostasis control device provided by the embodiment of the invention;
FIG. 6 is a pictorial view of the tissue adaptive cutting hemostasis control device of the ultrasonic blade shown in FIG. 5;
fig. 7 is a flowchart of the operation of an ultrasonic knife tissue adaptive cutting hemostasis control device provided by the embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a tissue adaptive cutting hemostasis control method for an ultrasonic knife provided by an embodiment of the invention, and the method includes:
s110, controlling the signal generator to generate a detection signal with a preset frequency, so that the detection signal with the preset frequency is transmitted to the target biological tissue clamped by the cutter through the cutter.
The detection signal is an alternating current signal, on one hand, the alternating current signal has good anti-interference capacity, on the other hand, the biological impedance of the target biological tissue is usually complex impedance, the alternating current signal can generate phase shift after passing through the target biological tissue, the biological impedance type of the target biological tissue can be judged according to the voltage advance or current advance condition of the alternating current signal after passing through the target biological tissue, and when the voltage advance occurs, the biological impedance type of the target biological tissue is inductive impedance; when the current is advanced, the bio-impedance type of the target biological tissue is a capacitive impedance. In addition, the equivalent current of the detection signal is small, so that the target biological tissue is prevented from being damaged when the detection signal flows through the target biological tissue.
Exemplarily, fig. 2 is a schematic structural diagram of a tool according to an embodiment of the present invention. The tool includes a sleeve rod 171 and a wave guide rod 172. The processor controls the signal generator to generate an ac detection signal with a preset frequency, and the ac detection signal flows through the loop bar 171 of the cutter, is transmitted to the target biological tissue 30 held by the cutter, and then is transmitted to the signal acquisition device through the wave guide bar 172 of the cutter, so that the signal acquisition device can acquire a feedback signal generated by the target biological tissue 30.
And S120, acquiring a feedback signal generated by the target biological tissue acquired by the signal acquisition unit, and calculating the biological impedance of the target biological tissue.
Specifically, the processor calculates the bio-impedance of the target biological tissue in real time according to the voltage value and the current value of the feedback signal.
S130, determining a target current value or a target voltage value of a driving signal required to be generated by the cutter driving module according to the biological impedance of the target biological tissue.
Among them, there are two types of ultrasonic knives, a constant current source type and a constant voltage source type. Fig. 3 is a graph of cutting efficiency versus current characteristic of an ultrasonic blade according to an embodiment of the present invention. Taking the constant current source type ultrasonic knife as an example, when the biological impedance of the target biological tissue is the resistance R, the relationship between the current value of the driving signal generated by the knife driving module and the cutting efficiency of the knife on the target biological tissue is shown in fig. 2, as the current value of the driving signal generated by the knife driving module is larger, the amplitude of the knife is larger, the cutting speed is higher, that is, the cutting efficiency is larger, but when the current value of the driving signal reaches a certain current value I1Then, as the current value of the driving signal increases, the cutting efficiency of the cutter increases slowly, that is, the current value of the driving signal continues to increase, so that the cutting efficiency cannot be increased obviously, and the cutter generates heat to cause larger thermal damage to the target biological tissue. Therefore, when the current value of the driving signal is I1Cutting with ultrasonic knifeHigh efficiency and less thermal damage, the current value I1I.e. the target current value. It will be understood that the driving signal is typically an ac signal, and the current value of the driving signal is referred to as the effective value. The specific meaning of the target voltage value is similar to that of the target current value, and is not described herein again.
Specifically, for a constant current source type ultrasonic blade, a target current value of a drive signal required to be generated by the blade drive module needs to be determined, and for a constant voltage source type ultrasonic blade, a target voltage value of a drive signal required to be generated by the blade drive module needs to be determined.
And S140, adjusting the driving signal generated by the cutter driving module according to the target current value or the target voltage value.
Specifically, after the target current value or the target voltage value of the driving signal is determined, the processor adjusts the driving signal generated by the cutter driving module according to the target current value or the target voltage value, so that the current value of the driving signal generated by the cutter driving module is the target current value, or the voltage value of the driving signal generated by the cutter driving module is the target voltage value, and further the cutter can work in a state of high cutting efficiency and small heat damage. It can be understood that, in the process of cutting the target biological tissue held by the cutter, as the target biological tissue is continuously cut, the biological impedance changes in real time, so that the target current value or the target voltage value of the driving signal required to be generated by the cutter driving module needs to be determined in real time, and the driving signal generated by the cutter driving module is further adjusted in real time, so that the cutter works in a state of high cutting efficiency and small thermal damage in real time.
According to the self-adaptive cutting hemostasis control method for the tissue of the ultrasonic knife, provided by the embodiment of the invention, the target current value or the target voltage value of the driving signal suitable for the target biological tissue under the biological impedance is obtained by calculating the biological impedance of the target biological tissue in real time, and then the driving signal generated by the knife driving module is adjusted, so that the knife works in a state of high cutting efficiency and small thermal injury in real time, the problems of large thermal injury or low cutting efficiency caused by the fact that the ultrasonic knife cannot be controlled according to the biological impedance of the target biological tissue in a targeted manner in the prior art are solved, and the effects of high cutting efficiency and small thermal injury are achieved.
On the basis of the above technical solution, optionally, S130 includes: and inquiring a biological tissue database according to the biological impedance of the target biological tissue to determine a target current value or a target voltage value of the driving signal required by the target biological tissue.
When the biological impedance of the part supported by the cutter is different, the target current value and the target voltage value corresponding to different biological impedances are different, so that a biological tissue database is established.
Specifically, after acquiring the bio-impedance of the target biological tissue clamped by the cutter, the target current value or the target voltage value corresponding to the bio-impedance is searched in the biological tissue database.
Optionally, S140 includes: adjusting the effective current value of the alternating current excitation signal generated by the ultrasonic driving unit according to the target current value so as to adjust the vibration amplitude of the mechanical vibration signal generated by the ultrasonic transducer; or, the effective voltage value of the alternating current excitation signal generated by the ultrasonic driving unit is adjusted according to the target voltage value so as to adjust the vibration amplitude of the mechanical vibration signal generated by the ultrasonic transducer.
The ultrasonic driving unit is used for generating an alternating current excitation signal under the control of the processor, namely the driving signal generated by the cutter driving module, and the ultrasonic transducer is used for converting the electric energy of the alternating current excitation signal generated by the ultrasonic driving unit into mechanical energy so as to control the cutter to carry out mechanical vibration, thereby achieving the purpose of cutting or stopping bleeding on target biological tissues.
Illustratively, the processor adjusts the equivalent current of the alternating current excitation signal generated by the ultrasonic driving unit according to the target current value, and then controls the cutting efficiency of the cutter on the target biological tissue through the ultrasonic transducer, so that the cutter works in a state of high cutting efficiency and small thermal damage.
On the basis of the above technical solution, with continuing reference to fig. 1, optionally, before controlling the tool driving module to generate the driving signal, the method further includes:
and S100, acquiring a starting signal.
Specifically, after the processor acquires the starting signal sent by the excitation switch, the signal generator is controlled to generate a detection signal with a preset frequency, so that the detection signal with the preset frequency is transmitted to the target biological tissue clamped by the cutter through the cutter.
Optionally, after obtaining the feedback signal generated by the target biological tissue collected by the signal collector and calculating the bio-impedance of the target biological tissue, the method further includes:
s150, sending the bio-impedance of the target biological tissue to the display module to instruct the display module to display the bio-impedance of the target biological tissue in real time.
During the cutting process of the target biological tissue clamped by the cutter, at the initial cutting stage, the temperature of a cutter head of the cutter is high, moisture in the target biological tissue can be evaporated in a short time, the electric conductivity of the target biological tissue can be reduced, namely the biological impedance is increased, and then the target biological tissue is cut and thinned, and the biological impedance is smaller and smaller, so that the biological impedance of the target biological tissue is increased and reduced firstly in the cutting process.
Illustratively, the display module includes a liquid crystal display, and an impedance characteristic diagram of the target biological tissue is depicted through the liquid crystal display, wherein a horizontal axis of the impedance characteristic diagram is labeled as time and a vertical axis is labeled as biological impedance.
The arrangement enables a surgeon to better grasp the current cutting degree of the target biological tissue by observing the biological impedance characteristic diagram in an environment with an inconvenient visual field. In addition, because the biological impedance of different types of biological tissues is greatly different, when the biological impedance characteristic diagram shows that the biological impedance is changed drastically at a certain time, a surgeon can know that other types of biological tissues are cut currently according to the biological impedance characteristic diagram, namely, cutting by mistake is required to be stopped, so that the operation risk is reduced.
It can be understood that the liquid crystal display may also be used to display information such as the complex impedance type of the target biological tissue, and in addition, if the liquid crystal display has a touch function, the liquid crystal display may have an input and output function, so that a user may perform a human-computer interaction with the processor through the liquid crystal display.
Based on the above inventive concept, the embodiment of the present invention further provides an ultrasonic knife tissue adaptive cutting hemostasis control device, and fig. 4 is a schematic structural diagram of the ultrasonic knife tissue adaptive cutting hemostasis control device provided in the embodiment of the present invention. The device specifically includes: the device comprises a processor 110, a signal generator 120, a cutter 130, a signal collector 140 and a cutter driving module 150, wherein the processor 110 is respectively connected with the signal generator 120, the signal collector 140 and the cutter driving module 150, and the cutter 130 is connected with the cutter driving module 150.
The signal generator 120 is configured to generate a detection signal with a preset frequency. The cutter 130 is used for transmitting a detection signal of a preset frequency to a target biological tissue held by the cutter 130. The signal collector 140 is used for collecting a feedback signal generated by the target biological tissue. A processor 110 for controlling the signal generator 120 to generate a detection signal with a preset frequency, so that the detection signal with the preset frequency is transmitted to the target biological tissue clamped by the cutter 130 through the cutter 130; acquiring a feedback signal generated by the target biological tissue acquired by the signal acquisition unit 140, and calculating the biological impedance of the target biological tissue; determining a target current value or a target voltage value of a driving signal required to be generated by the cutter driving module 150 according to the bio-impedance of the target biological tissue; adjusting the driving signal generated by the tool driving module 150 according to the target current value or the target voltage value. The knife driving module 150 is used for generating a driving signal to enable the knife 130 to perform a cutting or hemostasis operation on the target biological tissue.
According to the self-adaptive cutting hemostasis control method for the tissue of the ultrasonic knife, provided by the embodiment of the invention, the processor is used for calculating the biological impedance of the target biological tissue in real time to obtain the target current value or the target voltage value of the driving signal suitable for the target biological tissue under the biological impedance, and then the driving signal generated by the cutter driving module is adjusted to enable the cutter to work in a state of high cutting efficiency and small thermal damage in real time, so that the problems of large thermal damage or low cutting efficiency caused by the fact that the ultrasonic knife cannot be controlled according to the biological impedance of the target biological tissue in a targeted mode in the prior art are solved, and the effects of high cutting efficiency and small thermal damage are achieved.
With continued reference to fig. 4, optionally, the apparatus further includes an excitation switch 160, a display module 170, and a power supply (not shown in fig. 4), wherein the excitation switch 160 is connected to the processor 110, the display module 170 is connected to the processor 110, and the power supply is respectively connected to the processor 110, the signal generator 120, the signal collector 140, the excitation switch 160, the display module 170, and the tool driving module 150.
Wherein the trigger switch 160 is used to generate a start signal to instruct the processor 110 to execute the operation of controlling the tool 130 driving module to generate the driving signal.
The display module 170 is used for displaying the bio-impedance of the target biological tissue transmitted by the processor 110. Illustratively, the display module 170 includes a liquid crystal display. The arrangement enables a surgeon to better grasp the current cutting degree of the target biological tissue through observing the biological impedance characteristic diagram in the environment with inconvenient visual field, thereby reducing the operation risk.
It can be understood that the liquid crystal display can also be used for displaying information such as the composite impedance type of the target biological tissue, and in addition, if the liquid crystal display has a touch function, the liquid crystal display can have an input and output function, and a user can perform human-computer interaction with the processor through the liquid crystal display.
The power supply is used for supplying power to the processor 110, the signal generator 120, the signal collector 140, the trigger switch 160, the display module 170 and the cutter driving module 150.
With continued reference to fig. 3, optionally, the tool 130 driving module includes an ultrasonic driving unit 151 and an ultrasonic transducer 152, the ultrasonic driving unit 151 is connected to the processor 110, the power supply, and the ultrasonic transducer 152, respectively, and the ultrasonic transducer 152 is connected to the tool 130.
The ultrasonic driving unit 151 is configured to generate an ac excitation signal, and the ultrasonic transducer 152 is configured to convert the ac excitation signal into a mechanical vibration signal, so as to mechanically vibrate the knife 130, thereby achieving the purpose of stopping bleeding or cutting a target biological tissue.
Fig. 5 is a schematic structural diagram of another ultrasonic-knife tissue adaptive-cutting hemostasis control device provided by the embodiment of the invention. Fig. 6 is a physical diagram of the tissue adaptive cutting hemostasis control device of the ultrasonic knife shown in fig. 5. Referring to fig. 5 and 6, the control device of the ultrasonic blade 10 includes the ultrasonic blade 10 and the host 20, the processor 110 includes a first processor 111 and a second processor 112, the first processor 111 is respectively connected to the signal generator 120, the signal collector 140, the trigger switch 160, the power supply (not shown in fig. 4 and 5) and the second processor 112, and the second processor 112 is respectively connected to the ultrasonic driving unit 151, the power supply and the display module 170. The first processor 111, the signal generator 120, the cutter 130, the signal collector 140, the trigger switch 160 and the ultrasonic transducer 152 are integrated on the ultrasonic scalpel 10, and the second processor 112, the ultrasonic driving unit 151, the power supply and display module 170 are integrated on the main machine 20, as shown in fig. 4.
The first processor 111 is configured to obtain an on signal generated by the excitation switch, and perform an operation of controlling the control signal generator 120 to generate a detection signal with a preset frequency, so that the detection signal with the preset frequency is transmitted to the target biological tissue clamped by the cutter 130 through the cutter 130; the feedback signal generated by the target biological tissue collected by the signal collector 140 is acquired, the bio-impedance of the target biological tissue is calculated, and the bio-impedance of the target biological tissue is sent to the second processor 112.
The second processor 112 is configured to obtain the bio-impedance of the target biological tissue sent by the first processor 111, determine a target current value or a target voltage value of a driving signal that needs to be generated by the cutter driving module 150 according to the bio-impedance of the target biological tissue, and adjust an effective current value of an ac excitation signal generated by the ultrasonic driving unit 151 according to the target current value to adjust a vibration amplitude of a mechanical vibration signal generated by the ultrasonic transducer 152; alternatively, the effective voltage value of the alternating current excitation signal generated by the ultrasonic drive unit 151 is adjusted according to the target voltage value to adjust the vibration amplitude of the mechanical vibration signal generated by the ultrasonic transducer 152.
It should be noted that the feedback signal acquired by the signal acquisition unit 140 is an analog signal, the interference rejection of the analog signal is poor, and if the feedback signal is directly transmitted to the second processor 112 through a cable, and the second processor 112 calculates the bio-impedance of the target biological tissue according to the feedback signal, the feedback signal is easily interfered during the transmission process due to the long cable, so that the calculation error of the bio-impedance is relatively large. However, by providing the first processor 111 in the ultrasonic blade, calculating the bio-impedance of the target biological tissue by the first processor 111, and transmitting the calculation result to the second processor 112 in the form of a digital signal, since the transmission distance required by the feedback signal is short and the digital signal has strong anti-interference capability, the error of the bio-impedance of the target biological tissue finally obtained by the second processor 112 is small, which is beneficial to accurately determining the target current value or the target voltage value.
Optionally, the first processor 111 and the second processor 112 communicate through a cable;
or the ultrasonic blade 10 further includes a first communication module, the host 20 further includes a second communication module, and the first processor 111 and the second processor 112 communicate with each other through the first communication module and the second communication module.
Since any one of the ultrasonic-blade tissue adaptive cutting hemostasis control methods provided by the above embodiments can be executed by the ultrasonic-blade tissue adaptive cutting hemostasis control device, the ultrasonic-blade tissue adaptive cutting hemostasis control device has the same or corresponding beneficial effects as the ultrasonic-blade tissue adaptive cutting hemostasis control method in the above embodiments, and the detailed explanation is omitted, so that the detailed explanation is referred to and the detailed description is omitted.
The invention also provides an application example of the ultrasonic knife tissue self-adaptive cutting hemostasis control device shown in the figure 5. Fig. 7 is a flowchart of the operation of an ultrasonic knife tissue adaptive cutting hemostasis control device provided by the embodiment of the invention. Referring to fig. 7, the detailed process is as follows:
and S610, exciting the switch to send out a starting signal.
And S620, the first processor acquires the starting signal and controls the signal generator to generate a detection current with a preset frequency.
S630, the detection current is transmitted to the target biological tissue clamped by the cutter head of the cutter through the sleeve rod, and then is transmitted to the signal collector through the guided wave rod.
And S640, the signal collector captures a feedback signal flowing through the target biological tissue and outputs the feedback signal to the first processor for biological impedance calculation.
And S650, the first processor outputs the calculated result of the biological impedance to a second processor in the host.
And S660, the second processor determines a corresponding target current value of the target biological tissue under the biological impedance by inquiring the biological tissue database according to the calculation result of the biological impedance.
And S670, adjusting the equivalent current of the alternating current excitation signal output by the ultrasonic driving unit by the second processor according to the target current value so as to adjust the cutting efficiency of the cutter on the target biological tissue.
And S680, displaying the biological impedance characteristic graph of the target biological tissue in real time by the second processor through the liquid crystal display screen.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An ultrasonic knife tissue self-adaptive cutting hemostasis control device, characterized by comprising:
the device comprises a processor, a signal generator, a cutter, a signal collector and a cutter driving module;
the processor is respectively connected with the signal generator, the signal collector and the cutter driving module, and the cutter is connected with the cutter driving module;
the signal generator is used for generating a detection signal with a preset frequency;
the cutter is used for transmitting the detection signal with the preset frequency to a target biological tissue held by the cutter;
the signal collector is used for collecting a feedback signal generated by the target biological tissue;
the processor is used for controlling the signal generator to generate a detection signal with the preset frequency, so that the detection signal with the preset frequency is transmitted to the target biological tissue clamped by the cutter through the cutter; acquiring a feedback signal generated by the target biological tissue and acquired by the signal acquisition unit, and calculating the biological impedance of the target biological tissue; determining a target current value or a target voltage value of a driving signal required to be generated by the cutter driving module according to the biological impedance of the target biological tissue; adjusting the driving signal generated by the cutter driving module according to the target current value or the target voltage value;
the cutter driving module is used for generating the driving signal so as to enable the cutter to cut or stop bleeding of the target biological tissue;
the processor, configured to determine a target current value or a target voltage value of a driving signal that the cutter driving module needs to generate according to the bio-impedance of the target biological tissue, specifically includes: the processor is used for inquiring a biological tissue database according to the biological impedance of the target biological tissue to determine a target current value or a target voltage value of a driving signal required by the target biological tissue;
the ultrasonic knife is a constant current type ultrasonic knife, and when the current value of the driving signal is the target current value, the cutting efficiency of the ultrasonic knife is highest, and the thermal damage is smallest; or the ultrasonic knife is a constant voltage type ultrasonic knife, and when the voltage value of the driving signal is the target voltage value, the cutting efficiency of the ultrasonic knife is highest, and the thermal damage is smallest; and; the detection signal comprises an alternating current signal, the alternating current signal is subjected to phase shift after passing through the target biological tissue, and when the voltage is advanced, the type of the biological impedance of the target biological tissue is inductive impedance; when the current is advanced, the bio-impedance type of the target biological tissue is a capacitive impedance.
2. The device of claim 1, further comprising an activation switch, a display module, and a power supply;
the excitation switch is connected with the processor; the display module is connected with the processor; the power supply is respectively connected with the processor, the signal generator, the signal collector, the excitation switch, the display module and the cutter driving module;
the excitation switch is used for generating a starting signal to instruct the processor to execute the operation of controlling the cutter driving module to generate the driving signal;
the display module is used for displaying the biological impedance of the target biological tissue sent by the processor;
the power supply is used for supplying power to the processor, the signal generator, the signal collector, the excitation switch, the display module and the cutter driving module.
3. The apparatus of claim 2, wherein the cutter drive module comprises an ultrasonic drive unit and an ultrasonic transducer;
the ultrasonic driving unit is respectively connected with the processor, the power supply and the ultrasonic transducer, and the ultrasonic transducer is connected with the cutter;
the ultrasonic driving unit is used for generating an alternating current excitation signal;
the ultrasonic transducer is used for converting the alternating current excitation signal into a mechanical vibration signal so as to enable the cutter to perform hemostasis or cutting operation on the target biological tissue.
4. The device of claim 3, wherein the ultrasonic-blade tissue-adaptive-cutting hemostasis control device comprises an ultrasonic blade and a host;
the processor comprises a first processor and a second processor;
the first processor is respectively connected with the signal generator, the signal collector, the excitation switch, the power supply and the second processor;
the second processor is connected with the ultrasonic driving unit, the power supply and the display module respectively;
the first processor is used for acquiring the starting signal generated by the excitation switch and executing the operation of controlling the signal generator to generate a detection signal with a preset frequency, so that the detection signal with the preset frequency is transmitted to the target biological tissue clamped by the cutter through the cutter; acquiring a feedback signal generated by the target biological tissue acquired by the signal acquisition unit, calculating the biological impedance of the target biological tissue, and sending the biological impedance of the target biological tissue to the second processor;
the second processor is used for acquiring the biological impedance of the target biological tissue sent by the first processor, determining a target current value or a target voltage value of a driving signal required to be generated by the cutter driving module according to the biological impedance of the target biological tissue, and adjusting an effective current value of an alternating current excitation signal generated by the ultrasonic driving unit according to the target current value so as to adjust the vibration amplitude of a mechanical vibration signal generated by the ultrasonic transducer; or, the effective voltage value of the alternating current excitation signal generated by the ultrasonic driving unit is adjusted according to the target voltage value so as to adjust the vibration amplitude of the mechanical vibration signal generated by the ultrasonic transducer;
the first processor, the signal generator, the cutter, the signal collector, the excitation switch and the ultrasonic transducer are integrated on the ultrasonic knife;
the second processor, the ultrasonic driving unit, the power supply and the display module are integrated on the host.
5. The apparatus of claim 4, wherein the first processor and the second processor are in communication via a cable;
or the ultrasonic knife further comprises a first communication module, the host further comprises a second communication module, and the first processor and the second processor are communicated through the first communication module and the second communication module.
6. The apparatus of claim 2, wherein the display module comprises a liquid crystal display for displaying the impedance characteristic of the target biological tissue, wherein the abscissa of the impedance characteristic is time and the ordinate is the biological impedance of the target biological tissue.
7. The device of claim 6, wherein the liquid crystal display comprises a touch function.
8. The device of claim 7, wherein the liquid crystal display is configured to display a human-computer interface for human-computer interaction with the processor.
9. The apparatus of claim 8, wherein the human-machine interface comprises a host brightness setting, a volume setting, a date setting, a work log query, a bio-log query, and an output power.
10. The apparatus of claim 1, wherein the tool comprises a sleeve rod and a wave guide rod, the sleeve rod is used for transmitting the detection signal of the preset frequency; the waveguide rod is used for transmitting the feedback signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124064.5A CN109646109B (en) | 2019-02-19 | 2019-02-19 | Self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue |
| PCT/CN2020/075624 WO2020169006A1 (en) | 2019-02-19 | 2020-02-18 | Tissue self-adaptive cutting and hemostasis control method and device for ultrasonic scalpel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124064.5A CN109646109B (en) | 2019-02-19 | 2019-02-19 | Self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109646109A CN109646109A (en) | 2019-04-19 |
| CN109646109B true CN109646109B (en) | 2021-04-13 |
Family
ID=66123296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910124064.5A Active CN109646109B (en) | 2019-02-19 | 2019-02-19 | Self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109646109B (en) |
| WO (1) | WO2020169006A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109646109B (en) * | 2019-02-19 | 2021-04-13 | 深圳市世格赛思医疗科技有限公司 | Self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue |
| CN210848776U (en) * | 2019-09-19 | 2020-06-26 | 东莞市新玛博创超声波科技有限公司 | Ultrasonic welding device with pulse current heating function |
| CN113520528A (en) * | 2020-07-10 | 2021-10-22 | 厚凯(北京)医疗科技有限公司 | Ultrasonic knife control system |
| CN113274097B (en) * | 2020-11-03 | 2023-03-28 | 以诺康医疗科技（苏州）有限公司 | Ultrasonic knife self-adaptive control method and system for finishing tissue shearing |
| CN113274096B (en) * | 2020-11-03 | 2023-01-24 | 以诺康医疗科技（苏州）有限公司 | Ultrasonic knife self-adaptive control method and system for finishing tissue shearing |
| CN114795397A (en) * | 2021-01-28 | 2022-07-29 | 上海逸思医疗科技股份有限公司 | Current calibration method and device of ultrasonic transducer and ultrasonic surgical system |
| CN115177326A (en) * | 2021-04-01 | 2022-10-14 | 深圳开立生物医疗科技股份有限公司 | Ultrasonic knife system, constant current driving method and device thereof, and host |
| CN114052841B (en) * | 2021-11-24 | 2024-01-23 | 重庆迈科唯医疗科技有限公司 | Ultrasonic knife control method, ultrasonic knife control system, medium and electronic terminal |
| CN114191041B (en) * | 2021-12-09 | 2024-04-02 | 上海益超医疗器械有限公司 | Method, device, apparatus and electronic device for outputting driving signal to surgical instrument |
| CN114305600B (en) * | 2022-03-15 | 2022-06-03 | 厚凯(北京)医疗科技有限公司 | Control method and device of ultrasonic surgical instrument, surgical equipment and storage medium |
| CN114430161A (en) * | 2022-03-31 | 2022-05-03 | 厚凯(北京)医疗科技有限公司 | Ultrasonic knife driving power supply, overload protection method and device thereof, and ultrasonic knife equipment |
| CN118415720B (en) * | 2024-06-27 | 2024-10-18 | 安徽皖仪科技股份有限公司 | Intelligent gear control system of ultrasonic knife and current output method of intelligent gear control system |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4225624B2 (en) * | 1998-08-27 | 2009-02-18 | オリンパス株式会社 | High frequency treatment device |
| JP4136118B2 (en) * | 1998-09-30 | 2008-08-20 | オリンパス株式会社 | Electrosurgical equipment |
| CN100450456C (en) * | 2001-09-28 | 2009-01-14 | 锐达医疗系统公司 | Impedance controlled tissue ablation apparatus and method |
| JP2006110388A (en) * | 2006-01-23 | 2006-04-27 | Olympus Corp | Ultrasonic cutting procoagulant apparatus |
| US9675375B2 (en) * | 2006-03-29 | 2017-06-13 | Ethicon Llc | Ultrasonic surgical system and method |
| JP5710610B2 (en) * | 2009-07-15 | 2015-04-30 | エシコン・エンド−サージェリィ・インコーポレイテッドＥｔｈｉｃｏｎ Ｅｎｄｏ−Ｓｕｒｇｅｒｙ，Ｉｎｃ． | Electrosurgical Electric Generator for Ultrasonic Surgical Instruments |
| US9168054B2 (en) * | 2009-10-09 | 2015-10-27 | Ethicon Endo-Surgery, Inc. | Surgical generator for ultrasonic and electrosurgical devices |
| ES2831761T3 (en) * | 2011-12-06 | 2021-06-09 | Domain Surgical Inc | System and method for controlling power supply to a surgical instrument |
| CN103417263A (en) * | 2012-05-18 | 2013-12-04 | 北京速迈医疗科技有限公司 | Ultrasonic cutting hemostasis surgery system |
| US9226767B2 (en) * | 2012-06-29 | 2016-01-05 | Ethicon Endo-Surgery, Inc. | Closed feedback control for electrosurgical device |
| US9655670B2 (en) * | 2013-07-29 | 2017-05-23 | Covidien Lp | Systems and methods for measuring tissue impedance through an electrosurgical cable |
| CN203710057U (en) * | 2013-12-26 | 2014-07-16 | 深圳迈瑞生物医疗电子股份有限公司 | Ultrasonic cutting hemostatic knife and ultrasonic cutting hemostatic system |
| US11051873B2 (en) * | 2015-06-30 | 2021-07-06 | Cilag Gmbh International | Surgical system with user adaptable techniques employing multiple energy modalities based on tissue parameters |
| CN205814419U (en) * | 2016-06-02 | 2016-12-21 | 易剑锋 | Fusion diced system based on bio-electrical impedance Intelligent Recognition |
| US11006997B2 (en) * | 2016-08-09 | 2021-05-18 | Covidien Lp | Ultrasonic and radiofrequency energy production and control from a single power converter |
| US11229474B2 (en) * | 2017-05-22 | 2022-01-25 | Cilag Gmbh International | Combination ultrasonic and electrosurgical instrument with adjustable energy modalities and method for limiting blade temperature |
| CN109646109B (en) * | 2019-02-19 | 2021-04-13 | 深圳市世格赛思医疗科技有限公司 | Self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue |
| CN109646108B (en) * | 2019-02-19 | 2021-01-22 | 深圳市世格赛思医疗科技有限公司 | Ultrasonic knife and cutting hemostasis system |
-
2019
- 2019-02-19 CN CN201910124064.5A patent/CN109646109B/en active Active
-
2020
- 2020-02-18 WO PCT/CN2020/075624 patent/WO2020169006A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020169006A1 (en) | 2020-08-27 |
| CN109646109A (en) | 2019-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109646109B (en) | Self-adaptive cutting hemostasis control method and device for ultrasonic knife tissue | |
| EP1894532B1 (en) | Surgical instruments | |
| JP4451459B2 (en) | Relay unit and operation system for ultrasonic surgical apparatus and high-frequency ablation apparatus | |
| EP2371313B1 (en) | System for operation | |
| US8372070B2 (en) | Surgical system and surgical operation method | |
| US20130030328A1 (en) | Ultrasonic Dissection System | |
| CN111609921B (en) | Ultrasonic transducer frequency tracking device and method | |
| EP2105102A2 (en) | Electrosurgical apparatus with predictive RF source control | |
| CN106021174B (en) | Ultrasonic knife frequency tracking device and method | |
| JP5670837B2 (en) | Apparatus and method for optimal tissue separation | |
| JP2000271145A (en) | Device and system for treatment | |
| JP2024537221A (en) | Ultrasonic scalpel, surgical energy machine and power adjustment method thereof | |
| CN113397656A (en) | Bipolar high-frequency ultrasonic dual-output surgical system | |
| CN212515446U (en) | Ultrasonic transducer control device | |
| CN109646108B (en) | Ultrasonic knife and cutting hemostasis system | |
| CN108888336A (en) | Electrosurgery knife and its control method | |
| CN113491562B (en) | Method for dynamically adjusting output energy of ultrasonic scalpel and ultrasonic scalpel system | |
| JP3780069B2 (en) | Electrosurgical equipment | |
| CN114027935A (en) | Method, device and apparatus for outputting drive signal to surgical instrument, and electronic device | |
| CN217611276U (en) | Device for outputting drive signal to surgical instrument and surgical system | |
| JPH03131245A (en) | Ultrasonic therapy equipment | |
| JP2000271144A (en) | Surgery instrument | |
| CN116421296A (en) | Surgical instrument suitable for super-electric hybrid energy platform | |
| JP4040914B2 (en) | Ultrasonic surgical device | |
| JPH11299801A (en) | Operation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |