CN113899788B - Electrode contact quality detection method, high-frequency electrotome and readable storage medium - Google Patents
Electrode contact quality detection method, high-frequency electrotome and readable storage medium Download PDFInfo
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Abstract
The invention discloses an electrode contact quality detection method, a high-frequency electrotome and a readable storage medium, wherein the electrode contact quality detection method comprises the steps of controlling a relay to switch on a tool bit and a high-frequency power supply; acquiring contact voltage after the relay is switched on for a first preset time, wherein the contact voltage is used for representing the voltage of the neutral electrode; under the condition that the contact voltage is smaller than a preset first voltage threshold value, a contact area is obtained according to the contact voltage, wherein the contact area is used for representing the contact area of the neutral electrode and the human body; under the condition that the contact area is smaller than a preset first area threshold value, the relay is controlled to disconnect the high-frequency power supply from the cutter head, and the alarm indicator lamp and the alarm loudspeaker are controlled to work, so that the electrode contact quality detection method can disconnect the power supply of the cutter head when the contact area between the neutral electrode and a human body is too small, thereby preventing the human body from being burnt and improving the safety of the high-frequency electric knife.
Description
Technical Field
The invention relates to the technical field of high-frequency electrotomes, in particular to an electrode contact quality detection method, a high-frequency electrotome and a readable storage medium.
Background
The high frequency electric knife is an electric surgical instrument for cutting tissues instead of a mechanical surgical knife. The tissue is heated when the high-frequency high-voltage current generated by the tip of the effective electrode contacts with the body, so that the separation and solidification of the body tissue are realized, and the purposes of cutting and hemostasis are achieved. Since nerves and muscles no longer respond to current after the current frequency exceeds 100KHz, a high-frequency electric knife is usually used with a high-frequency current exceeding 200KHz, and in order to prevent the patient from being burned by continuing to heat tissues when the high-frequency current leaves the patient and returns to the high-frequency electric knife, a neutral electrode is required to form a current loop, however, in the use process of the high-frequency electric knife in the related art, poor contact between the neutral electrode and the patient may occur, thereby causing injury to the patient, and the safety is insufficient.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the electrode contact quality detection method which can detect the contact quality of the neutral electrode of the high-frequency electric knife contacted with the human body and cut off the power supply of the high-frequency electric knife when the contact quality is poor, thereby improving the safety of the high-frequency electric knife.
The embodiment of the first aspect of the invention provides an electrode contact quality detection method which is applied to a high-frequency electric knife, wherein the high-frequency electric knife is provided with a knife head, a relay, a high-frequency power supply, a neutral electrode, an alarm indicator lamp and an alarm loudspeaker, the relay is used for controlling the on-off of the high-frequency power supply and the knife head, and the neutral electrode is used for being stuck to a human body to form a current loop with the knife head;
the detection method comprises the following steps:
controlling the relay to connect the cutter head and the high-frequency power supply;
acquiring contact voltage after the relay is switched on for a first preset time, wherein the contact voltage is used for representing the voltage of the neutral electrode;
obtaining a contact area according to the contact voltage when the contact voltage is smaller than a preset first voltage threshold, wherein the contact area is used for representing the contact area of the neutral electrode and the human body;
and under the condition that the contact area is smaller than a preset first area threshold value, controlling the relay to disconnect the high-frequency power supply from the cutter head, and controlling the alarm indicator lamp and the alarm loudspeaker to work.
The electrode contact quality detection method provided by the embodiment of the invention has at least the following beneficial effects:
the electrode contact quality detection method of the embodiment of the invention obtains the contact voltage after the relay is connected for the first preset time, so that the obtained contact voltage is stable, the contact voltage is used for representing the voltage of the neutral electrode, when the contact voltage is smaller than the preset first voltage threshold value, the neutral electrode is not completely separated from a human body, therefore, the contact area of the neutral electrode and the human body is obtained according to the contact voltage, the larger the contact area is, the better the contact quality of the neutral electrode is, the smaller the contact area is, the worse the contact quality of the neutral electrode is, and when the contact area is small to a certain extent, the current enters the neutral electrode through the smaller human body area, therefore, the electric knife is easy to burn, in addition, the contact area is too small, the neutral electrode is easy to fall off from a human body, and therefore, under the condition that the contact area is smaller than a preset first area threshold value, the relay is controlled to disconnect the high-frequency power supply from the knife head, and the alarm indicator lamp and the alarm loudspeaker are controlled to work, so that the human body burn caused by poor contact quality of the neutral electrode or falling off of the neutral electrode from the human body can be prevented, the contact quality of the neutral electrode of the electric knife contacted with the human body can be improved, and the power supply of the electric knife can be disconnected when the contact quality is poor, so that the safety of the electric knife is improved.
According to some embodiments of the invention, the detection module comprises a self-oscillating circuit for generating a voltage signal according to the contact resistance, and a direct current conversion circuit for processing the voltage signal, wherein an input end of the self-oscillating circuit is connected with the detection interface, an output end of the self-oscillating circuit is connected with an input end of the direct current conversion circuit, and an output end of the direct current conversion circuit is connected with the MCU.
According to some embodiments of the invention, the obtaining a contact area according to the contact voltage includes:
obtaining a contact resistance according to the contact voltage, wherein the contact resistance is used for representing the resistance between the neutral electrode and the human body;
and looking up a table according to a preset mapping table, so as to obtain the contact area, wherein the mapping table is used for representing the mapping relation between the contact resistance and the contact area.
According to some embodiments of the invention, the electrode contact quality detection method further comprises:
determining the electrode type of the neutral electrode according to the contact resistance;
and under the condition that the electrode type is a monopolar neutral electrode, controlling the relay to disconnect the high-frequency power supply and the cutter head, and controlling the alarm indicator lamp and the alarm loudspeaker to work.
According to some embodiments of the invention, the electrode contact quality detection method further comprises:
determining the use state of the conductive adhesive of the neutral electrode according to the contact resistance;
under the condition that the using state is abnormal, the relay is controlled to disconnect the high-frequency power supply from the cutter head, and the alarm indicator lamp and the alarm loudspeaker are controlled to work.
According to some embodiments of the invention, the electrode contact quality detection method further comprises:
and under the condition that the contact voltage is not smaller than the first voltage threshold value, controlling the relay to disconnect the high-frequency power supply from the cutter head, and controlling the alarm indicator lamp and the alarm loudspeaker to work.
According to some embodiments of the invention, the step of obtaining the contact voltage after the relay is turned on for a first preset time includes:
acquiring the first voltage after the relay is switched on for the first preset time, wherein the first voltage is used for representing the alternating voltage of the neutral electrode;
step-down processing is carried out on the first voltage to obtain a second voltage;
and determining the contact voltage according to the second voltage, wherein the contact voltage is used for representing the root mean square value of the second voltage.
According to some embodiments of the invention, before the acquiring the contact voltage, the detecting method further includes:
acquiring a first connection state and a second connection state, wherein the first connection state is used for representing whether the alarm indicator lamp can normally communicate, and the second connection state is used for representing whether the alarm loudspeaker can normally communicate;
and under the condition that the first connection state and the second connection state are normal, controlling the alarm indicator lamp and the alarm loudspeaker to work for a second preset time.
According to some embodiments of the invention, the electrode contact quality detection method further comprises: and controlling the relay to disconnect the high-frequency power supply and the cutter head under the condition that the first connection state or the second connection state is abnormal.
In a second aspect, an embodiment of the present invention provides a high-frequency electric knife, including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the electrode contact quality detection method according to the first aspect above when executing the computer program.
In a third aspect, embodiments of the present invention further provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the electrode contact quality detection method according to the first aspect above.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart of a method for detecting electrode contact quality according to an embodiment of the present invention;
FIG. 2 is a flowchart of another embodiment of the method for detecting electrode contact quality;
FIG. 3 is a flow chart of a method for detecting electrode contact quality according to another embodiment of the present invention;
FIG. 4 is a flow chart of a method for detecting electrode contact quality according to another embodiment of the present invention;
FIG. 5 is a flowchart of another embodiment of the method for detecting electrode contact quality;
FIG. 6 is a flowchart of another embodiment of the method for detecting electrode contact quality;
FIG. 7 is a flow chart of a method for detecting electrode contact quality according to another embodiment of the present invention;
FIG. 8 is a flow chart of a method for detecting electrode contact quality according to another embodiment of the present invention;
fig. 9 is a schematic view of a high frequency electric knife provided in one embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The electrode contact quality detection method provided by the embodiment of the invention can be applied to a high-frequency electric knife, wherein the high-frequency electric knife is provided with a knife head, a relay, a high-frequency power supply, a neutral electrode, an alarm indicator lamp and an alarm loudspeaker, the relay is used for controlling the on-off of the high-frequency power supply and the knife head, the neutral electrode is used for being stuck to a human body to form a current loop with the knife head, so that the human body is prevented from being burnt by current, and the alarm indicator lamp and the alarm loudspeaker can alarm when the high-frequency electric knife detects abnormality, so that the safety of the high-frequency electric knife is improved.
According to the electrode contact quality detection method, the contact voltage is obtained after the relay is connected for the first preset time, so that the obtained contact voltage is stable, the contact voltage is used for representing the voltage of the neutral electrode, when the contact voltage is smaller than the preset first voltage threshold, the neutral electrode is not completely separated from a human body, so that the contact area of the neutral electrode and the human body is obtained according to the contact voltage, the larger the contact area is, the better the contact quality of the neutral electrode is, the smaller the contact area is, the worse the contact quality of the neutral electrode is, and when the contact area is small to a certain extent, current enters the neutral electrode through the smaller human body area, so that human body burns are easily caused, in addition, the fact that the neutral electrode is easily separated from the human body is easily caused due to the fact that the contact area is smaller than the preset first area threshold is achieved, the relay is controlled to disconnect a high-frequency power supply from the human body, and an alarm indicator lamp and an alarm loudspeaker are controlled to work, and accordingly, the situation that human body burns caused by the fact that the contact quality of the neutral electrode is too poor or the neutral electrode is separated from the human body can be prevented, and the high-frequency electric knife contact quality is detected, and the electric knife contact quality of the high-frequency electric knife is not good when the high-frequency electric knife is disconnected is enabled.
The high-frequency electric knife described in the embodiment of the present invention is for more clearly describing the technical solution of the embodiment of the present invention, and does not constitute a limitation on the technical solution provided by the embodiment of the present invention, and as a person skilled in the art can know that the technical solution provided by the embodiment of the present invention is applicable to similar technical problems with evolution of the high-frequency electric knife and occurrence of new application scenarios.
It will be appreciated by those skilled in the art that the above-described high frequency electric knife is not limiting of the embodiments of the present invention, and that a high frequency electric knife suitable for use in embodiments of the present invention may include more or fewer components, or may combine certain components, or may have a different arrangement of components.
Based on the above-described high-frequency electric knife, various embodiments of the electrode contact quality detection method of the present invention are presented.
Embodiments of the present invention will be further described below with reference to the accompanying drawings.
The embodiment of the invention provides an electrode contact quality detection method.
As shown in fig. 1, fig. 1 is a flowchart of an electrode contact quality detection method according to an embodiment of the present invention, which includes, but is not limited to, step S100, step S200, step S300, and step S400.
Step S100, controlling a relay to switch on a cutter head and a high-frequency power supply;
step S200, after the relay is switched on for a first preset time, acquiring a contact voltage, wherein the contact voltage is used for representing the voltage of the neutral electrode;
step S300, obtaining a contact area according to the contact voltage when the contact voltage is smaller than a preset first voltage threshold, wherein the contact area is used for representing the contact area between the neutral electrode and the human body;
and step 400, under the condition that the contact area is smaller than a preset first area threshold value, the relay is controlled to disconnect the high-frequency power supply from the cutter head, and the alarm indicator lamp and the alarm loudspeaker are controlled to work.
According to the electrode contact quality detection method, the contact voltage is obtained after the relay is connected for the first preset time, so that the obtained contact voltage is stable, the contact voltage is used for representing the voltage of the neutral electrode, when the contact voltage is smaller than the preset first voltage threshold, the neutral electrode is not completely separated from a human body, so that the contact area of the neutral electrode and the human body is obtained according to the contact voltage, the larger the contact area is, the better the contact quality of the neutral electrode is, the smaller the contact area is, the worse the contact quality of the neutral electrode is, and when the contact area is small to a certain extent, current enters the neutral electrode through the smaller human body area, so that human body burns are easily caused, in addition, the fact that the neutral electrode is easily separated from the human body is easily caused due to the fact that the contact area is smaller than the preset first area threshold is achieved, the relay is controlled to disconnect a high-frequency power supply from the human body, and an alarm indicator lamp and an alarm loudspeaker are controlled to work, and accordingly, the situation that human body burns caused by the fact that the contact quality of the neutral electrode is too poor or the neutral electrode is separated from the human body can be prevented, and the high-frequency electric knife contact quality is detected, and the electric knife contact quality of the high-frequency electric knife is not good when the high-frequency electric knife is disconnected is enabled.
In an embodiment, the first preset time is not longer than 0.5 seconds, so that the power-on time of the tool bit can be shortened as much as possible while the stable contact voltage is ensured, and the safety of the high-frequency electric tool is improved.
In an embodiment, when the contact voltage is greater than the first voltage threshold, the contact area is zero, and the neutral electrode is completely separated from the human body, so that the contact area is not required to be calculated according to the contact voltage, the relay is immediately controlled to disconnect the high-frequency power supply from the tool bit, and the alarm indicator lamp and the alarm loudspeaker are controlled to work, so that the response speed of disconnecting the tool bit power supply when the high-frequency electric knife is completely separated from the neutral electrode is improved, and the safety of the high-frequency electric knife is further improved.
As shown in fig. 2, fig. 2 is a specific flowchart of an electrode contact quality detection method according to another embodiment of the present invention, where the electrode contact quality detection method includes, but is not limited to, step S310 and step S320.
Step S310, obtaining a contact resistance according to the contact voltage, wherein the contact resistance is used for representing the resistance between the neutral electrode and the human body;
step S320, look-up table is performed on the contact resistance according to a preset mapping table to obtain a contact area, wherein the mapping table is used for representing the mapping relation between the contact resistance and the contact area.
In an embodiment, contact areas corresponding to contact resistances of neutral electrodes of different types are different, mapping relations between the contact resistances and the contact areas of various neutral electrodes are represented by setting a plurality of mapping tables, and the corresponding mapping tables are selected according to the types of the neutral electrodes, so that the high-frequency electric knife can determine accurate contact areas for the neutral electrodes of different types, and compatibility and expandability of the high-frequency electric knife are improved.
As shown in fig. 3, fig. 3 is a flowchart of an electrode contact quality detection method according to another embodiment of the present invention, and the electrode contact quality detection method includes, but is not limited to, step S500 and step S600.
Step S500, determining the electrode type of the neutral electrode according to the contact resistance;
and S600, under the condition that the electrode type is a monopolar neutral electrode, the relay is controlled to disconnect the high-frequency power supply from the cutter head, and the alarm indicator lamp and the alarm loudspeaker are controlled to work.
Because the bipolar neutral electrode has higher safety performance than the unipolar neutral electrode, when the electrode type of the neutral electrode is determined to be the unipolar neutral electrode through the contact resistance, the control relay is disconnected from the high-frequency power supply and the tool bit, and the alarm indicator lamp and the alarm loudspeaker are controlled to work so as to remind a user to replace the safer bipolar neutral electrode for use.
As shown in fig. 4, fig. 4 is a flowchart of an electrode contact quality detection method according to another embodiment of the present invention, and the electrode contact quality detection method includes, but is not limited to, step S700 and step S800.
Step S700, determining the use state of the conductive adhesive of the neutral electrode according to the contact resistance;
step S800, under the condition of abnormal use state, the control relay disconnects the high-frequency power supply and the cutter head, and controls the alarm indicator lamp and the alarm loudspeaker to work.
In an embodiment, the neutral electrode is composed of foam, aluminum foil, conductive adhesive and isolating paper, and the conductive adhesive of the neutral electrode may have performance change in the use or storage process, so that the conductive capability of the conductive adhesive is reduced, thereby reducing the conductive capability of the neutral electrode, and finally causing the electric current of the high-frequency electric knife to burn the human body. Therefore, the embodiment of the invention determines the using state of the conductive adhesive of the neutral electrode according to the contact resistance
As shown in fig. 5, fig. 5 is a specific flowchart of an electrode contact quality detection method according to another embodiment of the present invention, where the electrode contact quality detection method includes, but is not limited to, step S900.
And step S900, under the condition that the contact voltage is not smaller than a first voltage threshold value, the relay is controlled to disconnect the high-frequency power supply from the cutter head, and the alarm indicator lamp and the alarm loudspeaker are controlled to work.
In an embodiment, when the contact voltage is not smaller than the first voltage threshold, the contact area is zero, and the neutral electrode is completely separated from the human body, so that the contact area is not required to be calculated according to the contact voltage, the relay is immediately controlled to disconnect the high-frequency power supply from the tool bit, the alarm indicator lamp and the alarm loudspeaker are controlled to work, the response speed of disconnecting the tool bit power supply when the neutral electrode is completely separated by the high-frequency electric knife is improved, and the safety of the high-frequency electric knife is further improved.
As shown in fig. 6, fig. 6 is a specific flowchart of an electrode contact quality detection method according to another embodiment of the present invention, where the electrode contact quality detection method includes, but is not limited to, step S210, step S220, and step S230.
Step S210, after a relay is switched on for a first preset time, a first voltage is obtained, wherein the first voltage is used for representing the alternating voltage of a neutral electrode;
step S220, performing step-down processing on the first voltage to obtain a second voltage;
step S230, determining a contact voltage according to the second voltage, wherein the contact voltage is used for representing the root mean square value of the second voltage.
Specifically, in an embodiment, the first voltage is a voltage between two stages of bipolar neutral electrodes, because the high-frequency power supply outputs alternating current, the first voltage is characterized by alternating current, the first voltage is reduced to obtain the second voltage, and damage to a processor used for executing an electrode contact quality detection method or a memory used for storing a memory used for executing the electrode contact quality detection method in the high-frequency electric knife due to high voltage can be avoided, the contact voltage is used for representing a root mean square value of the second voltage, the contact voltage is a direct current voltage, and the magnitude of the contact voltage is an effective value of the second voltage.
As shown in fig. 7, fig. 7 is a flowchart of an electrode contact quality detection method according to another embodiment of the present invention, and the electrode contact quality detection method includes, but is not limited to, step S1000 and step S1100 before the contact voltage is obtained.
Step S1000, a first connection state and a second connection state are obtained, wherein the first connection state is used for representing whether the alarm indicator lamp can normally communicate, and the second connection state is used for representing whether the alarm loudspeaker can normally communicate;
step S1100, under the condition that the first connection state and the second connection state are normal, the alarm indicator lamp and the alarm loudspeaker are controlled to work for a second preset time.
In an embodiment, a handshake request is sent to the alarm indicator and the alarm speaker respectively to establish a first handshake session with the alarm indicator and a second handshake session with the alarm speaker, if the first handshake session cannot be established, the first connection state is abnormal, which indicates that the alarm indicator cannot normally communicate, and if the second handshake session cannot be established, the second connection state is abnormal, which indicates that the alarm speaker cannot normally communicate. Therefore, under the condition that the first connection state and the second connection state are normal, the alarm indicator lamp and the alarm loudspeaker are controlled to work for a second preset time so as to indicate that the alarm indicator lamp and the alarm loudspeaker can work normally to a user, and the user can also determine that the alarm indicator lamp and the alarm loudspeaker can work normally by observing whether the alarm indicator lamp and the alarm loudspeaker work normally or not for the second time, so that the safety degree and the convenience degree of using the high-frequency electric knife are improved.
As shown in fig. 8, fig. 8 is a flowchart of an electrode contact quality detection method according to another embodiment of the present invention, including but not limited to step S1200, before the contact voltage is obtained.
Step S1200, in the case that the first connection state or the second connection state is abnormal, the control relay disconnects the high frequency power source and the cutter head.
In an embodiment, a handshake request is sent to the alarm indicator lamp and the alarm speaker respectively to establish a first handshake session with the alarm indicator and a second handshake session with the alarm speaker, if the first handshake session cannot be established, the first connection state is abnormal, which indicates that the alarm indicator lamp cannot normally communicate, and if the second handshake session cannot be established, the second connection state is abnormal, which indicates that the alarm speaker cannot normally communicate, so that the control relay disconnects the high-frequency power supply from the tool bit, a user is prevented from using a high-frequency electric knife which cannot alarm, danger is avoided, and the safety degree of using the high-frequency electric knife is improved.
In addition, referring to fig. 9, an embodiment of the present invention also provides a high-frequency electric knife 100 including: memory 110, processor 120, and a computer program stored on memory 110 and executable on processor 120.
The processor 120 and the memory 110 may be connected by a bus or other means.
Memory 110 is a non-transitory computer readable storage medium that may be used to store non-transitory software programs as well as non-transitory computer executable programs. In addition, the memory 110 may include high-speed random access memory 110, and may also include non-transitory memory 110, such as at least one disk memory 110 device, flash memory device, or other non-transitory solid state memory 110 device. In some implementations, the memory 110 may optionally include memory 110 remotely located relative to the processor 120, the remote memory 110 being connectable to the processor 120 through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The non-transitory software programs and instructions required to implement the electrode contact quality detection methods of the above embodiments are stored in the memory 110, which when executed by the processor 120, perform the electrode contact quality detection methods of the above embodiments, such as the electrode contact quality detection methods of fig. 1-8 described above.
Furthermore, an embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions that are executed by a processor 120 or controller, for example, by one processor 120 in the above apparatus embodiment or device embodiment, which may cause the above processor 120 to perform the electrode contact quality detection method in the above embodiment, for example, the electrode contact quality detection method in fig. 1 to 8 described above.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (9)
1. The electrode contact quality detection method is characterized by being applied to a high-frequency electric knife, wherein the high-frequency electric knife is provided with a knife head, a relay, a high-frequency power supply, a neutral electrode, an alarm indicator lamp and an alarm loudspeaker, the relay is used for controlling the on-off of the high-frequency power supply and the knife head, and the neutral electrode is used for being stuck to a human body to form a current loop with the knife head;
the detection method comprises the following steps:
controlling the relay to connect the cutter head and the high-frequency power supply;
acquiring contact voltage after the relay is switched on for a first preset time, wherein the contact voltage is used for representing the voltage of the neutral electrode;
obtaining a contact area according to the contact voltage when the contact voltage is smaller than a preset first voltage threshold, wherein the contact area is used for representing the contact area of the neutral electrode and the human body;
under the condition that the contact area is smaller than a preset first area threshold value, controlling the relay to disconnect the high-frequency power supply from the cutter head, and controlling the alarm indicator lamp and the alarm loudspeaker to work;
wherein:
the step of obtaining the contact area according to the contact voltage comprises the following steps:
obtaining a contact resistance according to the contact voltage, wherein the contact resistance is used for representing the resistance between the neutral electrode and the human body;
and looking up a table according to a preset mapping table, so as to obtain the contact area, wherein the mapping table is used for representing the mapping relation between the contact resistance and the contact area.
2. The method for detecting contact quality of an electrode according to claim 1, further comprising:
determining the electrode type of the neutral electrode according to the contact resistance;
and under the condition that the electrode type is a monopolar neutral electrode, controlling the relay to disconnect the high-frequency power supply and the cutter head, and controlling the alarm indicator lamp and the alarm loudspeaker to work.
3. The method for detecting contact quality of an electrode according to claim 1, further comprising:
determining the use state of the conductive adhesive of the neutral electrode according to the contact resistance;
under the condition that the using state is abnormal, the relay is controlled to disconnect the high-frequency power supply from the cutter head, and the alarm indicator lamp and the alarm loudspeaker are controlled to work.
4. The method for detecting contact quality of an electrode according to claim 1, further comprising:
and under the condition that the contact voltage is not smaller than the first voltage threshold value, controlling the relay to disconnect the high-frequency power supply from the cutter head, and controlling the alarm indicator lamp and the alarm loudspeaker to work.
5. The method for detecting contact quality of an electrode according to claim 1, wherein the step of obtaining the contact voltage after the relay is turned on for a first preset time includes:
acquiring the first voltage after the relay is switched on for the first preset time, wherein the first voltage is used for representing the alternating voltage of the neutral electrode;
step-down processing is carried out on the first voltage to obtain a second voltage;
and determining the contact voltage according to the second voltage, wherein the contact voltage is used for representing the root mean square value of the second voltage.
6. The method for detecting contact quality of an electrode according to claim 1, wherein before the contact voltage is acquired, the method further comprises:
acquiring a first connection state and a second connection state, wherein the first connection state is used for representing whether the alarm indicator lamp can normally communicate, and the second connection state is used for representing whether the alarm loudspeaker can normally communicate;
and under the condition that the first connection state and the second connection state are normal, controlling the alarm indicator lamp and the alarm loudspeaker to work for a second preset time.
7. The method for detecting contact quality of an electrode according to claim 6, further comprising:
and controlling the relay to disconnect the high-frequency power supply and the cutter head under the condition that the first connection state or the second connection state is abnormal.
8. High-frequency electric knife comprising a memory, a processor and a computer program stored on the memory and running on the processor, characterized in that the processor implements the electrode contact quality detection method according to any one of claims 1 to 7 when executing the computer program.
9. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the electrode contact quality detection method according to any one of claims 1 to 7.
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