CN114027933A - Ultrasonic soft tissue cutting hemostasis equipment and control method and control system thereof - Google Patents
Ultrasonic soft tissue cutting hemostasis equipment and control method and control system thereof Download PDFInfo
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
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- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B2017/320082—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for incising tissue
Abstract
The invention relates to an ultrasonic soft tissue cutting hemostasis device and a control method and a control system thereof. The ultrasonic soft tissue cutting hemostasis equipment comprises a host and a plurality of acoustic systems correspondingly matched with the host; each acoustic system comprises an ultrasonic transducer and an ultrasonic cutter head, wherein the ultrasonic transducer is correspondingly connected with the host, and the ultrasonic cutter head is connected with the ultrasonic transducer; the host comprises a control processor, a switching matching circuit and a power output circuit, wherein the switching matching circuit and the power output circuit are connected with the control processor, the power output circuit is connected with the switching matching circuit, and the switching matching circuit is used for being correspondingly connected with the ultrasonic transducers of the plurality of acoustic systems. The ultrasonic scalpel can solve the problem that in the related art, for different use scenes, acoustic systems with different frequencies need to be used, but the traditional ultrasonic scalpel cannot meet the use requirement.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to ultrasonic soft tissue cutting hemostasis equipment and a control method and a control system thereof.
Background
An ultrasonic soft tissue cutting hemostasis device (hereinafter referred to as an ultrasonic knife) generally comprises a main machine and an accessory, wherein the accessory generally comprises an ultrasonic transducer and an ultrasonic knife head (the ultrasonic transducer and the ultrasonic knife head form an ultrasonic acoustic system). The host can provide ultrasonic vibration energy for the ultrasonic transducer and the ultrasonic cutter head, and the ultrasonic cutter head can cut and coagulate tissues by utilizing the ultrasonic vibration energy. Currently, this type of ultrasonic blade instrument is suitable for soft tissue cutting where bleeding control and minimal thermal damage are required, and can be used to close blood vessels not exceeding 5mm in diameter.
In practical clinical application, the traditional ultrasonic scalpel can only tune an acoustic system with one frequency and static capacitance, that is, because of the design principle of a hardware system architecture of a host of the traditional ultrasonic scalpel, the host can only match the acoustic system consisting of the ultrasonic transducer and the ultrasonic scalpel head with one frequency and static capacitance. However, for different use scenarios (for example, clinical end application in common tissue cutting situations, or situations in pediatrics, brain department, etc. requiring fine cut tissue and less tissue damage), acoustic systems with different frequencies are required, but the conventional ultrasonic blade cannot meet the use requirements.
Disclosure of Invention
The invention provides an ultrasonic soft tissue cutting hemostasis device and a control method and a control system thereof, which can solve the problem that in the related art, acoustic systems with different frequencies are required to be used for different use scenes, but the traditional ultrasonic knife cannot meet the use requirement.
In a first aspect, the present invention provides an ultrasonic soft tissue cutting hemostasis device comprising.
A host;
a plurality of acoustic systems which are correspondingly matched with the host; each acoustic system comprises an ultrasonic transducer and an ultrasonic cutter head, wherein the ultrasonic transducer is correspondingly connected with the host, and the ultrasonic cutter head is connected with the ultrasonic transducer;
the host comprises a control processor, a switching matching circuit and a power output circuit, wherein the switching matching circuit and the power output circuit are connected with the control processor, the power output circuit is connected with the switching matching circuit, and the switching matching circuit is used for being correspondingly connected with the ultrasonic transducers of the plurality of acoustic systems.
Optionally, the switching matching circuit includes a plurality of tuning inductors connected in parallel, and a plurality of switching control switches correspondingly connected to the plurality of tuning inductors, the plurality of switching control switches are all connected to the control processor, and the plurality of tuning inductors are respectively used for being correspondingly connected to the plurality of acoustic systems one to one.
Optionally, the tuning inductance L1The following were used:
wherein, C0Is a static capacitance value of an ultrasonic transducer of the acoustic system;
W0is a mechanical resonance angular frequency of the ultrasonic transducer of the acoustic system;
the mechanical resonance angular frequency W0The following were used:
W0＝2*π*FSin which F isSIs a resonant frequency of the ultrasonic transducer of the acoustic system.
Optionally, the switching control switch is a relay switch.
Optionally, the host comprises a crossover sub connected to the switching matching circuit, the crossover sub being configured to connect to a plurality of the acoustic systems simultaneously;
or, the host comprises a connection joint connected with the switching matching circuit, and the connection joint is used for correspondingly connecting one acoustic system.
In a second aspect, the present invention further provides a control method of an ultrasonic soft tissue cutting hemostatic device, including the following steps:
identifying a target acoustic system connected with a host according to identity information of a plurality of acoustic systems preset in the host;
judging a target tuning inductance matched with the target acoustic system, and controlling the target acoustic system to be connected with the matched target tuning inductance;
and controlling a power output circuit to output corresponding excitation energy to the target acoustic system according to the energy output parameters of the plurality of acoustic systems preset in the host, wherein the energy output parameters correspond to the target acoustic system.
Optionally, the outputting the corresponding excitation energy to the target acoustic system includes:
controlling the power output circuit to send corresponding pre-excitation energy to an ultrasonic transducer of the target acoustic system, so that the ultrasonic transducer generates pre-vibration;
detecting real-time excitation frequency generated by the ultrasonic transducer under the action of the excitation energy, and judging the matching between the real-time excitation frequency and the resonant frequency of the target acoustic system;
and when the real-time excitation frequency is detected to be correspondingly matched with the resonant frequency of the target acoustic system, controlling the power output circuit to send corresponding ultrasonic excitation energy to the target acoustic system.
Optionally, the determining a target tuning inductance matched with the target acoustic system, and controlling the target acoustic system to be connected with the matched target tuning inductance includes the following steps:
according to a switching matching circuit which is preset in the host and provided with a plurality of switching control switches and a plurality of tuning inductors, judging a target tuning inductor which is matched with the target acoustic system in the plurality of tuning inductors of the switching matching circuit;
when detecting that one tuning inductor in the plurality of tuning inductors is a target tuning inductor matched with the target acoustic system, controlling the switching control switch corresponding to the target tuning inductor in the switching matching circuit to work, so that the target tuning inductor is connected with the target acoustic system.
Optionally, after outputting the corresponding excitation energy to the target acoustic system, the method includes the following steps:
controlling the host to switch and connect to a new target acoustic system according to the use requirement of the new acoustic system;
judging a new target tuning inductance matched with the new target acoustic system, and controlling the new target acoustic system to be connected with the matched new target tuning inductance;
and controlling a power output circuit to send corresponding excitation energy to the new target acoustic system according to the new energy output parameters corresponding to the new target acoustic system according to the energy output parameters of the plurality of acoustic systems preset in the host.
In a third aspect, the present invention further provides a control system of an ultrasonic soft tissue cutting hemostatic device, comprising:
the acoustic system identification module is used for identifying a target acoustic system connected with the host according to the identity information of a plurality of acoustic systems preset in the host;
the inductive circuit matching module is in communication connection with the acoustic system identification module and is used for judging a target tuning inductance matched with the target acoustic system and controlling the target acoustic system to be connected with the matched target tuning inductance; and the number of the first and second groups,
and the excitation energy output module is in communication connection with the inductive circuit matching module and is used for controlling the power output circuit to output corresponding excitation energy to the target acoustic system according to the energy output parameters corresponding to the target acoustic system according to the energy output parameters of the plurality of acoustic systems preset in the host.
The technical scheme provided by the invention has the beneficial effects that:
the ultrasonic soft tissue cutting hemostasis equipment provided by the invention comprises a plurality of acoustic systems matched with a host, wherein each acoustic system has a resonant frequency and a static capacitance, and the requirements of various operation use scenes can be met. According to the use requirement, the control processor in the host can automatically identify the acoustic system connected with the host, and control the switching matching circuit to match with the corresponding acoustic system, so that the power output circuit sends out corresponding excitation energy to the matched acoustic system, the corresponding acoustic system generates corresponding resonant frequency, and the ultrasonic cutter head of the acoustic system meets the resonant frequency requirement of the corresponding use scene. Therefore, a plurality of acoustic systems with different frequencies can be switched to be used according to different use scene requirements, so that the use scene requirements of various tissue cutting are met.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of an ultrasonic soft tissue cutting hemostatic device according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an acoustic system according to an embodiment of the present invention;
FIG. 3 is a schematic view of an acoustic system (with the operating handle removed) according to an embodiment of the present invention;
FIG. 4 is a simplified schematic circuit diagram of a plurality of acoustic systems in accordance with an embodiment of the present invention in combination with a switched matching circuit;
FIG. 5 is a simplified schematic circuit diagram of an equivalent circuit of an acoustic system coupled to a tuning inductor according to an embodiment of the present invention;
FIG. 6 is a flow chart illustrating the steps of a method of controlling an ultrasonic soft tissue cutting hemostatic device, in accordance with an embodiment of the present invention;
fig. 7 is a block diagram illustrating the structure of a control system of the ultrasonic soft tissue cutting hemostatic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In practical clinical application, the traditional ultrasonic scalpel can only tune an acoustic system with one frequency and static capacitance, that is, because of the design principle of a hardware system architecture of a host of the traditional ultrasonic scalpel, the host can only match the acoustic system consisting of the ultrasonic transducer and the ultrasonic scalpel head with one frequency and static capacitance. However, for different use scenarios (for example, clinical end application in common tissue cutting situations, or situations in pediatrics, brain department, etc. requiring fine cut tissue and less tissue damage), acoustic systems with different frequencies are required, but the conventional ultrasonic blade cannot meet the use requirements. In order to solve the technical problems, the invention provides an ultrasonic soft tissue cutting hemostasis device, and a control method and a control system of the ultrasonic soft tissue cutting hemostasis device.
As shown in FIG. 1, the present invention provides an ultrasonic soft tissue cutting hemostatic device, which comprises a main body 10 and a plurality of acoustic systems 20 correspondingly matched with the main body 10. Furthermore, as shown in fig. 2 to 3, each acoustic system 20 includes an ultrasonic transducer 22 for corresponding connection with the main body 10, and an ultrasonic blade 24 connected to the ultrasonic transducer 22.
The host machine 10 can transmit current to the ultrasonic transducer 22, the ultrasonic transducer 22 converts electric energy into mechanical energy for vibration, the tail end of the ultrasonic tool bit vibrates at a certain frequency (for example, 55.5kHz) through the transmission and amplification of the ultrasonic tool bit 24, and the heat generated by friction causes water in tissue cells contacted with the ultrasonic tool bit 24 to be vaporized, so that protein hydrogen bonds are broken, the cells are disintegrated and fused again, and the tissue is cut after being solidified; when cutting blood vessels, the ultrasonic knife head 24 is in contact with tissue protein, and generates heat through mechanical vibration, so that collagen structures in the tissues are damaged, protein coagulation is caused, the blood vessels are sealed, and the purpose of stopping bleeding is achieved.
In some embodiments, the ultrasonic soft tissue cutting hemostatic device may include a main body 10, and three acoustic systems 20 correspondingly matched to the main body 10, each acoustic system 20 having a different resonant frequency. Furthermore, one host 10 may be adapted to connect to more (e.g., four, five, six, etc.) acoustic systems 20, as desired.
Furthermore, the host 10 may include a control processor, and a switching matching circuit and a power output circuit connected to the control processor, the power output circuit being connected to the switching matching circuit, the switching matching circuit being adapted to be correspondingly connected to the ultrasonic transducers 22 of the plurality of acoustic systems 20. The control processor can control the switching matching circuit to be connected or disconnected with a plurality of acoustic systems 20, and can also control the power output circuit to output different excitation energy according to different acoustic systems 20.
The ultrasonic soft tissue cutting hemostasis equipment provided by the invention comprises a plurality of acoustic systems 20 matched with a host machine 10, wherein each acoustic system 20 has a resonant frequency and a static capacitance, and the requirements of various operation use scenes can be met. According to the use requirement, the control processor in the host computer 10 can automatically identify the acoustic system 20 connected to the host computer 10, and control the switching matching circuit to match with the corresponding acoustic system 20, so that the power output circuit sends out the corresponding excitation energy to the matched acoustic system 20, so that the corresponding acoustic system 20 generates the corresponding resonant frequency, and the ultrasonic tool bit 24 of the acoustic system 20 meets the resonant frequency requirement of the corresponding use scene. Therefore, according to the requirements of different use scenes, a plurality of acoustic systems 20 with different frequencies can be switched to be used so as to meet the requirements of the use scenes for cutting various tissues.
Furthermore, as shown in fig. 4 and 5, the switching matching circuit may include a plurality of tuning inductors connected in parallel, and a plurality of switching control switches connected corresponding to the plurality of tuning inductors, each of the plurality of switching control switches being connected to the control processor, the plurality of tuning inductors being respectively configured to be connected in parallel with the plurality of acoustic systems 20 in a one-to-one correspondence. The control processor can control the on or off of a plurality of switching control switches, so that a certain tuning inductor in a plurality of tuning inductors is correspondingly connected with a certain acoustic system 20, and the acoustic system 20 can generate a corresponding resonant frequency.
As shown in fig. 4, the acoustic system 20 composed of the ultrasonic transducer 22 and the ultrasonic blade 24 is equivalent to: filter inductance LmFilter capacitor CmAnd a filter resistor RmA pass-band filter circuit (capable of passing only specific frequency) and a static capacitor C connected in parallel0. Wherein C is0The value of the static capacitance of the acoustic system is large, so that the acoustic system 20 formed by the ultrasonic transducer 22 and the ultrasonic blade 24 exhibits a capacitive characteristic in the circuit, and if such a capacitive device is directly connected to the whole circuit, a considerable reactive loss occurs. Therefore, when the switching matching circuit is designed in the main unit 10, it is necessary to compensate the capacitive impedance of the ultrasonic transducer 22 by using an inductive element in a tuning manner. Thus, the capacitive impedance of the ultrasonic transducer 22 can be compensated by setting a tuning inductance corresponding to the acoustic system 20, and since the capacitive impedance of each acoustic system 20 is different, each acoustic system 20 needs to be compensated by setting a corresponding tuning inductance. Furthermore, the tuning inductance may tune the acoustic system 20 in a parallel matching manner.
Further, the tuning inductance L1Can be calculated as follows:
wherein, C0A static capacitance value of the ultrasonic transducer of the acoustic system 20 (which is a fixed value and can be determined according to a design circuit of the acoustic system 20);
W0the mechanical resonance angular frequency of the ultrasonic transducer of the acoustic system 20;
and the mechanical resonance angular frequency W0Can be calculated as follows:
W0＝2*π*FSformula (2);
wherein FSIs the resonant frequency of the ultrasonic transducer of the acoustic system 20 (which is a fixed value, which can be determined according to the design circuit of the acoustic system).
Further, the switching control switch that switches the matching circuit may be set as a relay switch. A larger number of tuning inductors and acoustic systems 20 can be connected or disconnected through a smaller number of relay switches, so that the tuning inductors are connected with the corresponding acoustic systems 20 in a matching manner, and the power output circuit can emit corresponding excitation energy to the connected acoustic systems 20, so that the corresponding acoustic systems 20 generate corresponding resonant frequencies.
In some embodiments, as shown in fig. 4, the ultrasonic soft tissue cutting hemostasis device can include three acoustic systems 20; and the switching matching circuit may include three tuning inductors (i.e., L1, L2, L3) in one-to-one correspondence with the three acoustic systems 20, and two relay switches (i.e., S1 and S2) connected in correspondence with the three tuning inductors. When the relay switch S1 communicates terminals 2 and 3, the tuning inductor L1 communicates with the first acoustic system; when the relay switch S1 connects the 2 nd terminal and the 1 st terminal and the relay switch S2 connects the 2 nd terminal and the 3 rd terminal, the tuning inductor L2 is connected with the second optical system; when the relay switch S1 communicates the 2 nd terminal and the 1 st terminal, and the relay switch S2 communicates the 2 nd terminal and the 1 st terminal, the tuning inductor L3 communicates with the third acoustic system. Furthermore, the switching-on of the relay switches can be controlled by a larger number of relay switches, in addition to a corresponding larger number of tuning inductors and acoustic systems.
In addition, the switch control switches of the switching matching circuit can be set as common switch control switches, and one switch control switch can correspondingly control one tuning inductor to be matched and connected or disconnected with one acoustic system 20.
Further, in some embodiments, the host 10 may include a crossover connection to the switched matching circuit for connecting multiple acoustic systems 20 simultaneously. Namely, the acoustic system can be connected to a plurality of acoustic systems 20 through the adapter, and when one of the acoustic systems 20 needs to be used, the switching matching circuit can be controlled by the control processor to be switched to the corresponding acoustic system 20.
Furthermore, in other embodiments, the host 10 may include a connection connector connected to the switching matching circuit, and the connection connector is used for correspondingly connecting one acoustic system 20. The connection connector may be provided with one or more connection ports, and when it is required to use one acoustic system 20 of the plurality of acoustic systems 20, the acoustic system 20 may be plugged into a corresponding one of the connection ports, and the switching matching circuit is controlled by the control processor to be switched to the corresponding acoustic system 20.
In addition, the host 10 may include a housing having a receiving cavity, the control processor, the switching matching circuit, the power output circuit, and the like are disposed in the receiving cavity of the housing, and the adapter or the connection terminal is disposed on the housing. And the shell can be also provided with a display connected with the control processor, the acoustic system needing to be connected or connected can be displayed through the display, and the information of exciting current, tuning inductance and the like can also be displayed.
In addition, the ultrasonic soft tissue cutting hemostasis device further comprises a main switch 30 connected with the main machine 10, and the main switch can be electrically connected with the control processor of the main machine 10, or/and the power output circuit, or/and the switching matching circuit so as to carry out switch control on the main switch. Furthermore, the main switch 30 can be a foot switch, which is convenient to operate.
In addition, the ultrasonic transducer 22 and the ultrasonic blade 24 of the acoustic system 20 may be provided independently of each other or may be provided integrally. The ultrasonic transducer 22 may include an operation handle 222, a transducer main body 224 detachably disposed on the operation handle 222 and connected to a switching matching circuit, and an ultrasonic horn 226 connected to the transducer main body 224, the ultrasonic blade 24 is disposed at an end of the ultrasonic horn 226, the switching matching circuit transmits excitation energy generated by the power output circuit to the transducer main body 224, the transducer main body 224 converts the obtained electric energy (excitation energy) into mechanical energy for vibration, the ultrasonic horn 226 may amplify mass point displacement or velocity of mechanical vibration and concentrate the ultrasonic energy on a small area (may be accumulated on the ultrasonic blade 24), and the ultrasonic blade 24 may contact and act on soft tissue.
In addition, as shown in fig. 6, the present invention further provides a control method of the ultrasonic soft tissue cutting hemostatic device, which includes the following steps:
s100, identifying a target acoustic system connected with the host 10 according to identity information of a plurality of acoustic systems preset in the host 10;
s200, judging a target tuning inductance matched with the target acoustic system, and controlling the target acoustic system to be connected with the matched target tuning inductance;
and S300, controlling a power output circuit to send corresponding excitation energy to the target acoustic system according to the energy output parameters of the plurality of acoustic systems 20 preset in the host computer 10 and the energy output parameters corresponding to the target acoustic system.
When a certain acoustic system 20 (i.e., a target acoustic system) needs to be used, the target acoustic system needs to be identified from the plurality of acoustic systems 20 through the control processor of the host 10, and then a corresponding matched target tuning inductance and a corresponding energy output parameter are selected from the switching matching circuit of the host 10 according to the target acoustic system, so that the power output circuit outputs ultrasonic excitation energy to the target acoustic system according to the corresponding energy output parameter, and an ultrasonic tool bit of the target acoustic system vibrates according to a required tuning frequency. Furthermore, the target acoustic system may be switched, i.e. from one target acoustic system to another, as required.
Further, in the step S100, identifying the target acoustic system connected to the host 10 according to the identity information of the plurality of acoustic systems 20 preset in the host 10 includes the following steps:
s110, on the basis of physically connecting the one or more acoustic systems 20 with the host 10, obtaining the usage requirement information of the acoustic system 20 through the control processor of the host 10, and determining a required target acoustic system from the one or more acoustic systems 20;
when only one acoustic system 20 is physically connected to the host computer 10 through the connection connector, the control processor may determine that the acoustic system 20 is a target acoustic system required by the usage requirement information;
when a plurality of acoustic systems 20 are physically connected with the host computer 10 through the adapter, the control processor obtains the use requirement information of the acoustic systems 20, and a required acoustic system 20 can be determined from the plurality of acoustic systems 20 connected with the host computer 10 according to the use requirement information, that is, a target acoustic system is determined.
Specifically, the control processor may obtain a signal (which may be an electrical signal) emitted by one of the acoustic systems 20, so as to determine that the acoustic system 20 is the target acoustic system.
And S120, according to the determined target acoustic system and the identity information of the plurality of acoustic systems 20 preset in the control processor of the host 10, judging the identity information matched with the target acoustic system through the control processor, and accordingly identifying and matching the target acoustic system through the control processor.
After a target acoustic system is determined from one or more acoustic systems 20, the target acoustic system needs to be identified by the control processor, which facilitates subsequent circuit matching (switching matching circuit and power output circuit) of the target acoustic system, and thus identification information of the target acoustic system needs to be identified.
Specifically, specific signal information (such as a resonant frequency) sent by the target acoustic system can be acquired by the control processor, and compared with the identity information of a plurality of preset acoustic systems 20 in the control processor, and when the target acoustic system corresponds to the preset identity information of a certain acoustic system 20, the identity information of the target acoustic system can be determined.
In addition, in the step S200, determining a target tuning inductance matched with the target acoustic system, and controlling the target acoustic system to be connected to the matched target tuning inductance includes the following steps:
s210, according to a switching matching circuit which is preset in a control processor of the host computer 10 and is provided with a plurality of switching control switches and a plurality of tuning inductors, judging a target tuning inductor which is matched with a target acoustic system in the plurality of tuning inductors of the switching matching circuit;
after the identity information of the target acoustic system is determined, matching of the target acoustic system with the switching matching circuit and the power output circuit may be performed. The switched matching circuit includes a plurality of tuning inductors connected in parallel, and the plurality of tuning inductors correspond to the plurality of acoustic systems 20 one-to-one, that is, the target acoustic system also corresponds to one of the plurality of tuning inductors. According to the identity information of the target acoustic system, that is, according to the tuning inductance corresponding to the identity information of the target acoustic system, a corresponding and matched tuning inductance is determined from the multiple tuning inductances, that is, the target tuning inductance is determined. By switching the target tuning inductance in the matching circuit, which is matched with the target acoustic system, the capacitive characteristics presented by the target acoustic system can be counteracted, so that the target acoustic system is in a perfect resonance state near the resonance frequency of the target acoustic system during operation.
And S220, when one tuning inductor in the plurality of tuning inductors is detected to be a target tuning inductor matched with the target acoustic system, controlling a switching control switch corresponding to the target tuning inductor in the switching matching circuit to work, so that the target tuning inductor is connected with the target acoustic system.
After determining a target tuning inductance matching the target acoustic system from the plurality of tuning inductances, the target tuning inductance needs to be connected to the target acoustic system. At the moment, the control processor can control a switching control switch corresponding to the target tuning inductance in the switching matching circuit to work, so that the target tuning inductance is connected with the target acoustic system, the target acoustic system is connected with the switching matching circuit in a matching mode, and meanwhile the power output circuit is connected with the target acoustic system, so that the power output circuit is prepared to output excitation energy to the target acoustic system, and the target acoustic system can generate ultrasonic vibration according to the required tuning frequency.
In addition, in step S300, the step of controlling the power output circuit to output the corresponding excitation energy to the target acoustic system according to the energy output parameters corresponding to the target acoustic system according to the energy output parameters of the plurality of acoustic systems preset in the host computer 10 includes the following steps:
s310, matching the obtained identity information of the target acoustic system with a plurality of energy output parameters, which are preset in a control processor of the host 10 and correspond to the plurality of acoustic systems 20 one by one, and obtaining energy output parameters (such as an effective excitation current, a duty ratio, and the like) matched with the target acoustic system from the plurality of energy output parameters;
and S320, controlling a power output circuit to output corresponding excitation energy to the target acoustic system through a switching matching circuit with matched target tuning inductance by a control processor according to the obtained energy output parameter matched with the target acoustic system.
Further, outputting the corresponding excitation energy to the target acoustic system, comprising the following steps:
s322, controlling the power output circuit to send corresponding pre-excitation energy to the ultrasonic transducer 22 of the target acoustic system, so that the ultrasonic transducer 22 generates pre-vibration;
s324, detecting the real-time excitation frequency generated by the ultrasonic transducer 22 under the action of the excitation energy, and judging the matching between the real-time excitation frequency and the resonant frequency of the target acoustic system;
and S326, when the real-time excitation frequency is detected to be correspondingly matched with the resonant frequency of the target acoustic system, controlling the power output circuit to send corresponding ultrasonic excitation energy to the target acoustic system.
Each acoustic system 20 has an intrinsic resonant frequency, and the host 10 outputs excitation energy to the acoustic system 20 and receives a feedback signal of the acoustic system 20, so that the acoustic system 20 is in a perfect resonant state, and efficient cutting and hemostasis can be achieved.
In order to achieve a perfect resonance operation state of the target acoustic system 20, the target acoustic system needs to be detected and debugged. Specifically, after the power output circuit is controlled to send the corresponding pre-excitation energy to the ultrasonic transducer 22 of the target acoustic system according to the matched energy output parameter to generate the ultrasonic vibration, the control processor of the host 10 may perform frequency search in a corresponding frequency range on the target acoustic system performing the ultrasonic vibration, and detect whether the resonant frequency of the excited target acoustic system is in the set correct frequency interval. If the resonance frequency of the excited target acoustic system is detected to be within the set correct interval, the target acoustic system is judged to be normal, and efficient cutting and hemostasis can be realized; and if the resonance frequency of the excited target acoustic system is detected to be in an abnormal interval, controlling the target acoustic system to report an error and displaying an error code.
When the resonant frequency of the excited target acoustic system is in an abnormal interval, the energy output parameter can be adjusted through the control processor, the adjusted energy output parameter is used for controlling the power output circuit to send corresponding pre-excited energy to the ultrasonic transducer 22 of the target acoustic system to enable the pre-excited energy to generate ultrasonic vibration, and then frequency searching in a corresponding frequency range is carried out on the target acoustic system again. Wherein the energy output parameter may be a threshold range, rather than a fixed value.
In addition, after the corresponding excitation energy is output to the target acoustic system, the method comprises the following steps:
s400, controlling the host 10 to be switched and connected to a new target acoustic system according to the use requirement of the new acoustic system;
when a different acoustic system 20 is needed during the same procedure, the original target acoustic system is switched to the new target acoustic system.
Alternatively, when a different acoustic system 20 is required for a different procedure, the original target acoustic system is switched to a new target acoustic system.
Similarly, when the host 10 is controlled to be switched to a new target acoustic system by the control processor, the new target acoustic system connected to the host 10 through the crossover joint or the connection joint may also be identified according to the identity information of the plurality of acoustic systems 20 preset in the control processor of the host 10. The specific steps are substantially similar to the step S100, and are not described herein again.
S500, judging a new target tuning inductance matched with the new target acoustic system, and controlling the new target acoustic system to be connected with the matched new target tuning inductance;
similarly, after the new target acoustic system connected to the host computer 10 is identified by the control processor, the new target acoustic system needs to be controlled by the control processor to be matched with the switching matching circuit and the power output circuit at the same time, that is, the new target acoustic system is matched and connected with the new target tuning inductor of the switching matching circuit. The specific steps are substantially similar to the step S200, and are not described herein again.
And S600, controlling the power output circuit to send corresponding excitation energy to the new target acoustic system according to the new energy output parameters corresponding to the new target acoustic system according to the energy output parameters of the plurality of acoustic systems 20 preset in the host 10.
Similarly, after the new target acoustic system is controlled by the control processor to be connected with the new target tuning inductor of the switching matching circuit in a matching mode, a new energy output parameter matched with the new target acoustic system is selected by the control processor, and the power output circuit is controlled to send corresponding ultrasonic excitation energy to the new target acoustic system according to the new energy output parameter. The specific steps are substantially similar to the step S300, and are not described herein again.
In addition, the control processor arranged in the main machine of the ultrasonic soft tissue cutting hemostasis equipment can be used for realizing the control method of the ultrasonic soft tissue cutting hemostasis equipment.
In addition, as shown in fig. 7, the present invention further provides a control system 100 for the ultrasonic soft tissue cutting hemostatic device, which includes:
an acoustic system identification module 102, configured to identify a target acoustic system connected to the host 10 according to identity information of multiple acoustic systems 20 preset in the host 10;
the inductive circuit matching module 104 is in communication connection with the acoustic system identification module 102, and is used for judging a target tuning inductance matched with the target acoustic system and controlling the target acoustic system to be connected with the matched target tuning inductance; and the number of the first and second groups,
and the excitation energy output module 106 is communicatively connected to the inductive circuit matching module 104, and is configured to control the power output circuit to output corresponding excitation energy to the target acoustic system according to the energy output parameters of the plurality of acoustic systems 20 preset in the host 10 and the energy output parameters corresponding to the target acoustic system.
The control system 100 of the ultrasonic soft tissue cutting hemostatic device according to this embodiment corresponds to the control method of the ultrasonic soft tissue cutting hemostatic device, and functions of each module in the control system of the ultrasonic soft tissue cutting hemostatic device according to this embodiment are explained in detail in the corresponding method embodiment, and are not described again here.
The technical scheme provided by the invention has the beneficial effects that: the acoustic system can be compatible with three or more acoustic systems with different design frequencies and amplitudes, the cutting speed can be improved through a low-frequency acoustic system (such as 50KHz), and the operation time is reduced; fine cutting may also be achieved by a high frequency acoustic system (e.g. 60 KHz). Different acoustic system schemes can be adopted for different operations, and the ultrasonic energy platform has multiple functions; the low-frequency acoustic system has high cutting speed, and the high-frequency acoustic system is more finely cut; different acoustic systems meet the requirements of various types of vascular closure, and the vascular closure capacity is stronger and the thermal injury is lower.
The host can be intelligently adjusted to be switched to the corresponding matching inductance circuit of each acoustic system. The acoustic system with different frequency characteristics can be used in one operation, and clinical requirements of tissue effects of different parts, tissue types, blood vessel characteristics and the like in the same operation process can be met. The cutting is faster, and the ability of closing the blood vessel is stronger.
Based on the same inventive concept, the present application further provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements all or part of the method steps of the control method of the ultrasonic soft tissue cutting hemostatic device.
The present invention can implement all or part of the processes of the above methods, and can also be implemented by using a computer program to instruct related hardware, where the computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above method embodiments can be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
Based on the same inventive concept, an embodiment of the present application further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program running on the processor, and the processor executes the computer program to implement all or part of the method steps in the method.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center of the computer device and the various interfaces and lines connecting the various parts of the overall computer device.
The memory may be used to store computer programs and/or models, and the processor may implement various functions of the computer device by executing or otherwise executing the computer programs and/or models stored in the memory, as well as by invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (e.g., a sound playing function, an image playing function, etc.); the storage data area may store data (e.g., audio data, video data, etc.) created according to the use of the cellular phone. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, server, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), servers and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An ultrasonic soft tissue cutting hemostasis device, comprising:
a host;
a plurality of acoustic systems which are correspondingly matched with the host; each acoustic system comprises an ultrasonic transducer and an ultrasonic cutter head, wherein the ultrasonic transducer is correspondingly connected with the host, and the ultrasonic cutter head is connected with the ultrasonic transducer;
the host comprises a control processor, a switching matching circuit and a power output circuit, wherein the switching matching circuit and the power output circuit are connected with the control processor, the power output circuit is connected with the switching matching circuit, and the switching matching circuit is used for being correspondingly connected with the ultrasonic transducers of the plurality of acoustic systems.
2. The ultrasonic soft tissue cutting hemostasis device of claim 1, wherein the switch matching circuit comprises a plurality of tuning inductors connected in parallel, and a plurality of switch control switches connected in correspondence with the plurality of tuning inductors, each of the plurality of switch control switches being connected to the control processor, the plurality of tuning inductors being respectively configured for one-to-one connection with the plurality of acoustic systems.
3. The ultrasonic soft tissue cutting hemostasis device of claim 2, wherein the tuned inductance L1The following were used:
wherein, C0Is a static capacitance value of an ultrasonic transducer of the acoustic system;
W0is a mechanical resonance angular frequency of the ultrasonic transducer of the acoustic system;
the mechanical resonance angular frequencyW0The following were used:
W0＝2*π*FSin which F isSIs a resonant frequency of the ultrasonic transducer of the acoustic system.
4. The ultrasonic soft tissue cutting hemostasis device of claim 2, wherein the switch control switch is provided as a relay switch.
5. The ultrasonic soft tissue cutting hemostasis device of claim 2, wherein the host includes an adapter connected to the switching matching circuit, the adapter being configured to connect to a plurality of the acoustic systems simultaneously;
or, the host comprises a connection joint connected with the switching matching circuit, and the connection joint is used for correspondingly connecting one acoustic system.
6. A control method of an ultrasonic soft tissue cutting hemostatic device is characterized by comprising the following steps:
identifying a target acoustic system connected with a host according to identity information of a plurality of acoustic systems preset in the host;
judging a target tuning inductance matched with the target acoustic system, and controlling the target acoustic system to be connected with the matched target tuning inductance;
and controlling a power output circuit to output corresponding excitation energy to the target acoustic system according to the energy output parameters of the plurality of acoustic systems preset in the host, wherein the energy output parameters correspond to the target acoustic system.
7. The method of controlling an ultrasonic soft tissue cutting hemostatic device according to claim 6, wherein the outputting of the corresponding excitation energy to the target acoustic system comprises the steps of:
controlling the power output circuit to send corresponding pre-excitation energy to an ultrasonic transducer of the target acoustic system, so that the ultrasonic transducer generates pre-vibration;
detecting real-time excitation frequency generated by the ultrasonic transducer under the action of the excitation energy, and judging the matching between the real-time excitation frequency and the resonant frequency of the target acoustic system;
and when the real-time excitation frequency is detected to be correspondingly matched with the resonant frequency of the target acoustic system, controlling the power output circuit to send corresponding ultrasonic excitation energy to the target acoustic system.
8. The method for controlling an ultrasonic soft tissue cutting hemostatic device according to claim 6, wherein the step of determining a target tuning inductance matching the target acoustic system and controlling the target acoustic system to connect with the matching target tuning inductance comprises the steps of:
according to a switching matching circuit which is preset in the host and provided with a plurality of switching control switches and a plurality of tuning inductors, judging a target tuning inductor which is matched with the target acoustic system in the plurality of tuning inductors of the switching matching circuit;
when detecting that one tuning inductor in the plurality of tuning inductors is a target tuning inductor matched with the target acoustic system, controlling the switching control switch corresponding to the target tuning inductor in the switching matching circuit to work, so that the target tuning inductor is connected with the target acoustic system.
9. The method of controlling an ultrasonic soft tissue cutting hemostatic device according to claim 6, wherein after outputting the corresponding excitation energy to the target acoustic system, comprising the steps of:
controlling the host to switch and connect to a new target acoustic system according to the use requirement of the new acoustic system;
judging a new target tuning inductance matched with the new target acoustic system, and controlling the new target acoustic system to be connected with the matched new target tuning inductance;
and controlling a power output circuit to send corresponding excitation energy to the new target acoustic system according to the new energy output parameters corresponding to the new target acoustic system according to the energy output parameters of the plurality of acoustic systems preset in the host.
10. A control system for an ultrasonic soft tissue cutting hemostatic device, comprising:
the acoustic system identification module is used for identifying a target acoustic system connected with the host according to the identity information of a plurality of acoustic systems preset in the host;
the inductive circuit matching module is in communication connection with the acoustic system identification module and is used for judging a target tuning inductance matched with the target acoustic system and controlling the target acoustic system to be connected with the matched target tuning inductance; and the number of the first and second groups,
and the excitation energy output module is in communication connection with the inductive circuit matching module and is used for controlling the power output circuit to output corresponding excitation energy to the target acoustic system according to the energy output parameters corresponding to the target acoustic system according to the energy output parameters of the plurality of acoustic systems preset in the host.
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