阅读说明：本技术 一种微波消融仪水冷却故障检测与保护系统 (Water cooling fault detection and protection system of microwave ablation instrument ) 是由 吴林 宋旭 施文翔 于 2020-08-20 设计创作，主要内容包括：本发明提供了一种微波消融仪水冷却故障检测与保护系统。水流检测模块：用于在微波消融仪的蠕动管两侧设置多个超声波装置,确定水流状态水量检测模块：用于确定所述蠕动管的进水信息和出水信息；故障检测模块,用于接收所述水流状态、进水信息和出水信息,通过预设水冷却故障判断模型,在所述水冷却故障时,发出故障信号；故障报警模块,用于控制所述微波消融仪停止动作。本发明有益效果在于：本发明通过对微波消融仪的水冷却系统进行检测,可以防止微波消融仪的微波消融针在进行人体手术时出现故障,如果出现故障能够提前发现或即时发现,从而关断微波消融仪的执行动作,进而使得高温不会烫伤手术者和手术医生的。(The invention provides a water cooling fault detection and protection system of a microwave ablation instrument. The water flow detection module: the device is used for arranging a plurality of ultrasonic devices on two sides of a peristaltic tube of a microwave ablation instrument and determining a water flow state and water quantity detection module: the water inlet information and the water outlet information of the peristaltic tube are determined; the fault detection module is used for receiving the water flow state, the water inlet information and the water outlet information, and sending a fault signal when the water cooling fault occurs through a preset water cooling fault judgment model; and the fault alarm module is used for controlling the microwave ablation instrument to stop acting. The invention has the beneficial effects that: according to the microwave ablation instrument, the water cooling system of the microwave ablation instrument is detected, so that the microwave ablation needle of the microwave ablation instrument can be prevented from breaking down when a human body operation is carried out, if the microwave ablation needle breaks down, the fault can be found in advance or can be found immediately, the execution action of the microwave ablation instrument is turned off, and the high temperature can not scald operators and surgeons.)

1. A water cooling fault detection and protection system of a microwave ablation instrument is characterized by comprising:

the water flow detection module: the ultrasonic device is used for arranging a plurality of ultrasonic devices on two sides of a peristaltic tube of the microwave ablation instrument to determine the water flow state;

water quantity detection module: the water quantity sensors are arranged at two ends of a water container of the microwave ablation instrument and used for determining water inlet information and water outlet information of the peristaltic tube;

the fault detection module is used for receiving the water flow state, the water inlet information and the water outlet information, judging whether water cooling is in fault or not by presetting a water cooling fault judgment model, and sending a fault signal when the water cooling is in fault;

and the fault alarm module is used for receiving the fault signal and controlling the microwave ablation instrument to stop acting.

2. The water cooling fault detection and protection system for a microwave ablator of claim 1, wherein said water flow detection module comprises:

the coding module: the device comprises a peristaltic tube, a plurality of ultrasonic devices, a plurality of ultrasonic detection units and a plurality of ultrasonic detection units, wherein the plurality of ultrasonic devices are arranged on two sides of the peristaltic tube and are coded, and the unique code of each group of ultrasonic devices in the plurality of ultrasonic devices is determined;

an information acquisition module: the ultrasonic monitoring device is used for acquiring the position information and the monitoring information of the ultrasonic device according to the unique code; wherein the content of the first and second substances,

the position information is the position of each of the plurality of ultrasonic devices;

the monitoring information is the flow velocity of water flow monitored by each ultrasonic device in the plurality of ultrasonic devices;

a judging module: the ultrasonic monitoring device is used for acquiring the monitoring information and judging whether the water flow speed monitored by each ultrasonic device is the same or not according to the unique code; wherein the content of the first and second substances,

when the flow velocity of the water flow monitored by each ultrasonic device is the same, the flow velocity of the water flow is correctly monitored;

when the water flow rates monitored by the ultrasonic devices have different water flow rates, indicating that the water flow rate monitoring is wrong;

a positioning module: the ultrasonic device is used for dividing the peristaltic tube at equal intervals and installing the ultrasonic device on two sides of the peristaltic tube according to the dividing result; wherein the content of the first and second substances,

the ultrasonic device includes: an ultrasonic transmitter and an ultrasonic receiver.

3. The water cooling fault detection and protection system for a microwave ablator of claim 1, wherein said water flow detection module further comprises:

a device detection unit: the ultrasonic wave device is used for judging whether the ultrasonic wave device is sensitive or not according to preset monitoring feedback time and a sensitivity curve; wherein the content of the first and second substances,

the device detection unit includes:

an apparatus differentiation subunit: the ultrasonic device is used for distinguishing the detected ultrasonic devices through the unique codes of the ultrasonic devices and outputting code information;

a feedback detection unit: the system comprises an ultrasonic device, a monitoring feedback time and a time delay unit, wherein the ultrasonic device is used for acquiring the detection time of sound waves sent and received by the ultrasonic device, comparing the detection time with the monitoring feedback time, judging the ultrasonic device for the first time and outputting a first judgment result;

a curve matching unit: the ultrasonic monitoring device is used for presetting a monitoring time period, determining a water inflow curve chart and a water outflow curve chart of the water container and a water passing curve chart monitored by the ultrasonic device in the monitoring time period according to a water flow state, matching the water inflow curve chart, the water outflow curve chart and the water passing curve chart with the sensitivity curve, carrying out secondary judgment on the ultrasonic device according to a matching result, and outputting a second judgment result;

a sensitivity determination unit: and the ultrasonic device is used for outputting the sensitivity result of the ultrasonic device according to the difference degree of the first judgment result and the second judgment result.

4. The water cooling fault detection and protection system for a microwave ablator of claim 1, wherein said water volume detection module comprises:

the water inflow monitoring unit: the water inlet sensor is arranged at the water inlet end of the water container to determine the water inlet information of the peristaltic tube; wherein the content of the first and second substances,

the water inflow information includes: water inlet speed and water inlet quantity;

water yield monitoring unit: the water outlet sensor is arranged at the water outlet end of the water container to determine the water outlet information of the peristaltic tube; wherein the content of the first and second substances,

the water outlet information comprises: water outlet speed and water outlet quantity;

a liquid level unit: the water level sensor is used for determining the liquid level information of the water container through a preset liquid level sensor and judging whether the water inlet information and the water outlet information are correct or not according to the liquid level information; wherein the content of the first and second substances,

the liquid level information includes a liquid level fluctuation frequency and a liquid level variation.

5. The microwave ablator water cooling fault detection and protection system of claim 4, wherein said water volume detection module further comprises:

an information reliability determination unit: the method is used for establishing an information verification model according to water outlet information and water inlet information, and determining the credibility of the water outlet information and the water inlet information by taking time as a unit:

in the above formula, Q represents the reliability of the outlet water information and the inlet water information; n represents the total number of detected time instants; w represents a characteristic value of the ultrasonic device; k_W,W^-1(Y₀-Y_t) -representing the degree of influence of the ultrasonic device on the inflow and outflow of water in a time period of 0-t; y is₀Representing the characteristic values of the water inlet information and the water outlet information at the starting time point; y is_tRepresenting the characteristic values of the water inlet information and the water outlet information at the t-th moment;

when Q is more than or equal to 1, representing that the water outlet information and the water inlet information are credible;

and when Q is less than 1, the water outlet information and the water inlet information are not credible.

6. The water cooling fault detection and protection system for a microwave ablator of claim 1, wherein said fault detection module comprises:

an information acquisition unit: the system is used for collecting the water flow state, the water inlet information and the water outlet information, dividing the water flow state, the water inlet information and the water outlet information according to time, and determining time data;

a water cooling judgment unit: the microwave ablation instrument is used for substituting the time data into a preset water cooling fault judgment model, judging whether the microwave ablation instrument has a fault at each time, and outputting judgment information;

a failure determination unit: the microwave ablation instrument is used for determining the fault position of the microwave ablation instrument according to the judgment information and outputting fault information; wherein the content of the first and second substances,

the fault information includes: fault location information and fault condition information.

7. The water cooling fault detection and protection system for a microwave ablator of claim 1, wherein said fault detection module further comprises:

an information verification unit: the water flow state, the water inlet information and the water outlet information are calculated through an entropy method, and a detection entropy value is determined;

a correction unit: the fault signal is corrected according to the detection entropy value, and a corrected fault signal is output;

threshold unit: the system is used for setting an information threshold range, judging whether the water flow state, the water inlet information and the water outlet information are in the information threshold range or not according to the information threshold range, and outputting information to acquire an abnormal signal when the water flow state, the water inlet information and the water outlet information are not in the information threshold range.

8. The water cooling fault detection and protection system for a microwave ablation instrument as claimed in claim 1, wherein the water cooling fault determination model for determining whether water cooling is faulty comprises the following steps:

step 1: acquiring normal water flow data of the microwave ablation instrument in a normal state; wherein the content of the first and second substances,

the normal water flow data includes: normal water flow state, normal water outlet information and normal water inlet information;

step 2: according to the normal water flow data, constructing a water flow model under a normal state:

wherein n represents the number of ultrasonic devices, and v represents_i,tThe flow velocity of the water detected by the ith ultrasonic device at the t-th moment is shown; s represents the cross-sectional area of the peristaltic tube; the above-mentioned

and step 3: according to the water flow model in the normal state, a water cooling judgment model is constructed:

wherein, theThe average water flow speed of all ultrasonic devices at the t-th moment in the detection state is shown; the vJ_lRepresenting the water inlet speed in the detection state; the vC_lRepresenting the water outlet speed in the detection state; the above-mentioned

and 4, step 4: will real-time average water inlet speed and the average water outlet speed of ultrasonic device substitute water cooling in proper order and judge the model, reach water cooling judgement result: wherein

When P is less than or equal to 1, the water cooling is free of faults;

when P > 1, it indicates that the water cooling is faulty.

9. The water cooling fault detection and protection system for a microwave ablator of claim 1, wherein said fault alarm module comprises:

an alarm signal receiving unit: the fault detection device is used for receiving fault signals and determining fault information; wherein the content of the first and second substances,

the fault information includes: the position information of the ultrasonic sensor corresponding to the fault signal and the number of the fault signals;

a fault grading unit: the ultrasonic sensor is used for dividing fault grades according to the quantity ratio of the fault signals to the ultrasonic sensor; wherein the content of the first and second substances,

when the number ratio is greater thanThen, the fault level is the highest level;

when the number ratio is less thanAbove 0, the fault level is low;

a fault level judgment unit; the fault level is determined according to the number of the fault signals, and a fault action instruction is output according to the fault level; wherein the content of the first and second substances,

when the fault level is the highest level, outputting a stop action instruction of the microwave ablation instrument;

and when the fault level is low, outputting a voice alarm action instruction.

10. The water cooling fault detection and protection system for a microwave ablator of claim 1, wherein said fault alarm module further comprises:

an alarm action module: is used for setting alarm action; wherein the content of the first and second substances,

the alarm action comprises a fault action instruction and a voice alarm action instruction; wherein the content of the first and second substances,

the fault action instruction is executed by a power switch arranged on the microwave ablation instrument;

the voice alarm action instruction is executed by a loudspeaker and a voice memory which are arranged on the microwave ablation instrument.

Technical Field

The invention relates to the technical field of microwave ablation, in particular to a water cooling fault detection and protection system of a microwave ablation instrument.

Background

At present, when a microwave ablation instrument carries out a microwave ablation technology to treat a patient and a microwave ablation needle can be withdrawn after an operation is finished, because the microwave ablation needle is in a high-temperature state in the operation process and the withdrawal process of the microwave ablation instrument, the skin or a user of the patient can be possibly injured, a water cooling system of the microwave ablation instrument needs to be detected in advance, the fault of the water cooling system is prevented, the microwave ablation needle is withdrawn at high temperature, and the body and the user of the patient are burnt at high temperature.

Disclosure of Invention

The invention provides a water cooling fault detection and protection system of a microwave ablation instrument, which is used for solving the problem that the microwave ablation instrument is likely to cause damage to the skin of a patient and a user in the exiting process.

A water cooling fault detection and protection system of a microwave ablation instrument is characterized by comprising: the water flow detection module: the ultrasonic device is used for arranging a plurality of ultrasonic devices on two sides of a peristaltic tube of the microwave ablation instrument to determine the water flow state;

water quantity detection module: the water quantity sensors are arranged at two ends of a water container of the microwave ablation instrument and used for determining water inlet information and water outlet information of the peristaltic tube;

the fault detection module is used for receiving the water flow state, the water inlet information and the water outlet information, judging whether water cooling is in fault or not by presetting a water cooling fault judgment model, and sending a fault signal when the water cooling is in fault;

and the fault alarm module is used for receiving the fault signal and controlling the microwave ablation instrument to stop acting.

As an embodiment of the present invention, the water flow detecting module includes:

the coding module: the device comprises a peristaltic tube, a plurality of ultrasonic devices, a plurality of ultrasonic detection units and a plurality of ultrasonic detection units, wherein the plurality of ultrasonic devices are arranged on two sides of the peristaltic tube and are coded, and the unique code of each group of ultrasonic devices in the plurality of ultrasonic devices is determined;

an information acquisition module: the ultrasonic monitoring device is used for acquiring the position information and the monitoring information of the ultrasonic device according to the unique code; wherein the content of the first and second substances,

the position information is the position of each of the plurality of ultrasonic devices;

the monitoring information is the flow velocity of water flow monitored by each ultrasonic device in the plurality of ultrasonic devices;

a judging module: the ultrasonic monitoring device is used for acquiring the monitoring information and judging whether the water flow speed monitored by each ultrasonic device is the same or not according to the unique code; wherein the content of the first and second substances,

when the flow velocity of the water flow monitored by each ultrasonic device is the same, the flow velocity of the water flow is correctly monitored;

when the water flow rates monitored by the ultrasonic devices have different water flow rates, indicating that the water flow rate monitoring is wrong;

a positioning module: the ultrasonic device is used for dividing the peristaltic tube at equal intervals and installing the ultrasonic device on two sides of the peristaltic tube according to the dividing result; wherein the content of the first and second substances,

the ultrasonic device includes: an ultrasonic transmitter and an ultrasonic receiver.

As an embodiment of the present invention, the water flow detection module further includes:

a device detection unit: the ultrasonic wave device is used for judging whether the ultrasonic wave device is sensitive or not according to preset monitoring feedback time and a sensitivity curve; wherein the content of the first and second substances,

the device detection unit includes:

an apparatus differentiation subunit: the ultrasonic device is used for distinguishing the detected ultrasonic devices through the unique codes of the ultrasonic devices and outputting code information;

a feedback detection unit: the system comprises an ultrasonic device, a monitoring feedback time and a time delay unit, wherein the ultrasonic device is used for acquiring the detection time of sound waves sent and received by the ultrasonic device, comparing the detection time with the monitoring feedback time, judging the ultrasonic device for the first time and outputting a first judgment result;

a curve matching unit: the ultrasonic monitoring device is used for presetting a monitoring time period, determining a water inflow curve chart and a water outflow curve chart of the water container and a water passing curve chart monitored by the ultrasonic device in the monitoring time period according to a water flow state, matching the water inflow curve chart, the water outflow curve chart and the water passing curve chart with the sensitivity curve, carrying out secondary judgment on the ultrasonic device according to a matching result, and outputting a second judgment result;

a sensitivity determination unit: and the ultrasonic device is used for outputting the sensitivity result of the ultrasonic device according to the difference degree of the first judgment result and the second judgment result.

As an embodiment of the present invention, the water amount detection module includes:

the water inflow monitoring unit: the water inlet sensor is arranged at the water inlet end of the water container to determine the water inlet information of the peristaltic tube; wherein the content of the first and second substances,

the water inflow information includes: water inlet speed and water inlet quantity;

water yield monitoring unit: the water outlet sensor is arranged at the water outlet end of the water container to determine the water outlet information of the peristaltic tube; wherein the content of the first and second substances,

the water outlet information comprises: water outlet speed and water outlet quantity;

a liquid level unit: the water level sensor is used for determining the liquid level information of the water container through a preset liquid level sensor and judging whether the water inlet information and the water outlet information are correct or not according to the liquid level information;

wherein the content of the first and second substances,

the liquid level information includes a liquid level fluctuation frequency and a liquid level variation.

As an embodiment of the present invention, the water amount detection module further includes:

an information reliability determination unit: the method is used for establishing an information verification model according to water outlet information and water inlet information, and determining the credibility of the water outlet information and the water inlet information by taking time as a unit:

in the above formula, Q represents the reliability of the outlet water information and the inlet water information; n represents the total number of detected time instants; w represents a characteristic value of the ultrasonic device; k_W[W^-1(Y₀-Y_t)]Representing the influence degree value of the ultrasonic device on water inlet and water outlet in the time period of 0-t; y is₀The water inlet information and the water outlet information of the starting time point are expressedA characteristic value; y is_tRepresenting the characteristic values of the water inlet information and the water outlet information at the t-th moment;

when Q is more than or equal to 1, representing that the water outlet information and the water inlet information are credible;

and when Q is less than 1, the water outlet information and the water inlet information are not credible.

As an embodiment of the present invention, the fault detection module includes:

an information acquisition unit: the system is used for collecting the water flow state, the water inlet information and the water outlet information, dividing the water flow state, the water inlet information and the water outlet information according to time, and determining time data;

a water cooling judgment unit: the microwave ablation instrument is used for substituting the time data into a preset water cooling fault judgment model, judging whether the microwave ablation instrument has a fault at each time, and outputting judgment information;

a failure determination unit: the microwave ablation instrument is used for determining the fault position of the microwave ablation instrument according to the judgment information and outputting fault information; wherein the content of the first and second substances,

the fault information includes: fault location information and fault condition information.

As an embodiment of the present invention, the fault detection module further includes:

an information verification unit: the water flow state, the water inlet information and the water outlet information are calculated through an entropy method, and a detection entropy value is determined;

a correction unit: the fault signal is corrected according to the detection entropy value, and a corrected fault signal is output;

threshold unit: the system is used for setting an information threshold range, judging whether the water flow state, the water inlet information and the water outlet information are in the information threshold range or not according to the information threshold range, and outputting information to acquire an abnormal signal when the water flow state, the water inlet information and the water outlet information are not in the information threshold range.

As an embodiment of the present invention, the step of judging whether the water cooling is in fault by the water cooling fault judgment model includes:

step 1: acquiring normal water flow data of the microwave ablation instrument in a normal state; wherein the content of the first and second substances,

the normal water flow data includes: normal water flow state, normal water outlet information and normal water inlet information;

step 2: according to the normal water flow data, constructing a water flow model under a normal state:

wherein n represents the number of ultrasonic devices, and v represents_i,tThe flow velocity of the water detected by the ith ultrasonic device at the t-th moment is shown; s represents the cross-sectional area of the peristaltic tube; the above-mentionedThe average water flow speed of all the ultrasonic devices at the initial moment in a normal state is shown; the above-mentionedShowing the average water flow speed of all ultrasonic devices at the t-th moment in a normal state; vJ represents the water inlet speed in the normal state; the vC represents the water outlet speed in a normal state; the delta T represents a time value from the initial time to the T-th time;

and step 3: according to the water flow model in the normal state, a water cooling judgment model is constructed:

wherein, theThe average water flow speed of all ultrasonic devices at the t-th moment in the detection state is shown; the vJ_lRepresenting the water inlet speed in the detection state; the vC_lRepresenting the water outlet speed in the detection state; the above-mentioned

The average water flow speed of all ultrasonic devices at the initial moment in the detection state is shown;

and 4, step 4: will real-time average water inlet speed and the average water outlet speed of ultrasonic device substitute water cooling in proper order and judge the model, reach water cooling judgement result: wherein

When P is less than or equal to 1, the water cooling is free of faults;

when P > 1, it indicates that the water cooling is faulty.

As an embodiment of the present invention, the fault alarm module includes:

an alarm signal receiving unit: the fault detection device is used for receiving fault signals and determining fault information; wherein the content of the first and second substances,

the fault information includes: the position information of the ultrasonic sensor corresponding to the fault signal and the number of the fault signals;

a fault grading unit: the ultrasonic sensor is used for dividing fault grades according to the quantity ratio of the fault signals to the ultrasonic sensor; wherein the content of the first and second substances,

when the number ratio is greater thanThen, the fault level is the highest level;

when the number ratio is less than

Above 0, the fault level is low;

a fault level judgment unit; the fault level is determined according to the number of the fault signals, and a fault action instruction is output according to the fault level; wherein the content of the first and second substances,

when the fault level is the highest level, outputting a stop action instruction of the microwave ablation instrument;

and when the fault level is low, outputting a voice alarm action instruction.

As an embodiment of the present invention, the fault alarm module further includes:

an alarm action module: is used for setting alarm action; wherein the content of the first and second substances,

the alarm action comprises a fault action instruction and a voice alarm action instruction; wherein the content of the first and second substances,

the fault action instruction is executed by a power switch arranged on the microwave ablation instrument;

the voice alarm action instruction is executed by a loudspeaker and a voice memory which are arranged on the microwave ablation instrument.

The invention has the beneficial effects that: the invention can prevent the microwave ablation needle of the microwave ablation instrument from being incapable of cooling due to the failure of the water cooling system when the microwave ablation needle performs the operation on the human body and exits from the human body, and can be found in advance or immediately found if the failure occurs, thereby shutting down the execution action of the microwave ablation instrument and reminding operating personnel, so that the high temperature can not scald operators and surgeons.

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 drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

fig. 1 is a system diagram of a water cooling fault detection and protection system of a microwave ablation instrument according to an embodiment of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

As shown in fig. 1, the present invention is a water cooling fault detection and protection system for a microwave ablation instrument, comprising: the water cooling system of the microwave ablation instrument consists of a peristaltic tube and a water container, and cools a microwave ablation needle of the microwave ablation instrument in a circulating cooling mode.

The water flow detection module: the ultrasonic wave device is divided into an ultrasonic wave emitter and an ultrasonic wave receiver which are symmetrically distributed on two sides of the peristaltic tube. The state of the water flow is judged based on the time of transmission and reception of the ultrasonic signal.

Water quantity detection module: the water quantity sensors are arranged at two ends of a water container of the microwave ablation instrument and used for determining water inlet information and water outlet information of the peristaltic tube; the water quantity sensor consists of a water speed sensor and a water quantity sensor, is arranged at a water inlet and a water outlet of circulating water of the water container and is used for detecting the water inflow and the water outflow so as to determine the water circulation state of the whole cooling water system.

The fault detection module is used for receiving the water flow state, the water inlet information and the water outlet information, judging whether water cooling is in fault or not by presetting a water cooling fault judgment model, and sending a fault signal when the water cooling is in fault; and the water circulation is judged through the state of the whole water circulation and a preset model of the water circulation state under the normal condition, and then whether the water cooling fails or not is judged.

And the fault alarm module is used for receiving the fault signal and controlling the microwave ablation instrument to stop acting. When the water cooling breaks down, the whole microwave ablation instrument is controlled to stop the current action, so that the microwave ablation instrument is closed, and the microwave ablation instrument is protected from high-temperature scalding accidents caused by water cooling damage when being implemented.

The beneficial effects of the above technical scheme are that: the invention can prevent the microwave ablation needle of the microwave ablation instrument from being incapable of cooling due to the failure of the water cooling system when the microwave ablation needle performs the operation on the human body and exits from the human body, and can be found in advance or immediately found if the failure occurs, thereby shutting down the execution action of the microwave ablation instrument and reminding operating personnel, so that the high temperature can not scald operators and surgeons.

As an embodiment of the present invention, the water flow detecting module includes:

the coding module: the device comprises a peristaltic tube, a plurality of ultrasonic devices, a plurality of ultrasonic detection units and a plurality of ultrasonic detection units, wherein the plurality of ultrasonic devices are arranged on two sides of the peristaltic tube and are coded, and the unique code of each group of ultrasonic devices in the plurality of ultrasonic devices is determined; the coding module is used for coding the ultrasonic devices, so that the water flow information acquired by different ultrasonic devices is distinguished, and the most accurate water flow data can be obtained through a plurality of reference quantities when the water flow is judged. Meanwhile, the water flow states of different areas can be monitored by ultrasonic devices with different codes.

An information acquisition module: the ultrasonic monitoring device is used for acquiring the position information and the monitoring information of the ultrasonic device according to the unique code; wherein the content of the first and second substances,

the position information is the position of each of the plurality of ultrasonic devices;

the monitoring information is the flow velocity of water flow monitored by each ultrasonic device in the plurality of ultrasonic devices; the position information is used for positioning the ultrasonic device, so that when the peristaltic tube is interfered by gas factors, the area where the gas is located is found in time, and the corresponding area is processed.

A judging module: the ultrasonic monitoring device is used for acquiring the monitoring information and judging whether the water flow speed monitored by each ultrasonic device is the same or not according to the unique code; wherein the content of the first and second substances,

when the flow velocity of the water flow monitored by each ultrasonic device is the same, the flow velocity of the water flow is correctly monitored; in the peristaltic tube, if the flow rate of water monitored by each ultrasonic device is the same, the water circulation is normal, and the flow rate in the whole pipeline is the same.

When the water flow rates monitored by the ultrasonic devices have different water flow rates, indicating that the water flow rate monitoring is wrong; in the peristaltic tube, if the water flow velocity monitored by the ultrasonic device is different, the water flow velocity detected by the ultrasonic device is abnormal, and the gas in the pipeline and the ultrasonic device are abnormal due to the abnormality, so that the detected water flow velocity is wrong at the moment no matter what the abnormality exists.

A positioning module: the ultrasonic device is used for dividing the peristaltic tube at equal intervals and installing the ultrasonic device on two sides of the peristaltic tube according to the dividing result; the ultrasonic detection device is divided equidistantly, the detection state of each ultrasonic device is kept the same, and therefore the ultrasonic detection device can find out the abnormal conditions quickly.

The ultrasonic device includes: an ultrasonic transmitter and an ultrasonic receiver. When a fault occurs during the main function of positioning, the fault position is determined immediately, and then the fault is quickly positioned and processed in time.

As an embodiment of the present invention, the water flow detection module further includes:

a device detection unit: the ultrasonic wave device is used for judging whether the ultrasonic wave device is sensitive or not according to preset monitoring feedback time and a sensitivity curve; wherein the content of the first and second substances,

the device detection unit includes:

an apparatus differentiation subunit: the ultrasonic device is used for distinguishing the detected ultrasonic devices through the unique codes of the ultrasonic devices and outputting code information; the coded information contains a unique code, so that the detection point of the data abnormality can be located immediately.

A feedback detection unit: the system comprises an ultrasonic device, a monitoring feedback time and a time delay unit, wherein the ultrasonic device is used for acquiring the detection time of sound waves sent and received by the ultrasonic device, comparing the detection time with the monitoring feedback time, judging the ultrasonic device for the first time and outputting a first judgment result; in the principle of the present invention, the water flow velocity is determined based on the time for receiving the ultrasonic wave when the ultrasonic wave device transmits the ultrasonic wave, and the first determination result is a determination result of the water flow velocity.

A curve matching unit: the ultrasonic monitoring device is used for presetting a monitoring time period, determining a water inflow curve chart and a water outflow curve chart of the water container and a water passing curve chart monitored by the ultrasonic device in the monitoring time period according to a water flow state, matching the water inflow curve chart, the water outflow curve chart and the water passing curve chart with the sensitivity curve, carrying out secondary judgment on the ultrasonic device according to a matching result, and outputting a second judgment result; the curve matching is that the whole water cooling state is compared with a preset sensitivity curve within a period of time, and then whether the state of the whole water cooling system is normal or not is judged.

A sensitivity determination unit: and the ultrasonic device is used for outputting the sensitivity result of the ultrasonic device according to the difference degree of the first judgment result and the second judgment result. The sensitivity judgment is to judge the sensitivity of the ultrasonic device for detecting the water flow, so that the water flow data can be acquired more quickly and accurately during the water flow detection.

As an embodiment of the present invention, the water amount detection module includes:

the water inflow monitoring unit: the water inlet sensor is arranged at the water inlet end of the water container to determine the water inlet information of the peristaltic tube; wherein the content of the first and second substances,

the water inflow information includes: water inlet speed and water inlet quantity; the water inlet state detection device is used for detecting the water inlet state of the water cooling system through the water inlet information.

Water yield monitoring unit: the water outlet sensor is arranged at the water outlet end of the water container to determine the water outlet information of the peristaltic tube; wherein the content of the first and second substances,

the water outlet information comprises: water outlet speed and water outlet quantity; the water outlet state detection device is used for detecting the water outlet state of the water cooling system through the water outlet information.

A liquid level unit: the water level sensor is used for determining the liquid level information of the water container through a preset liquid level sensor and judging whether the water inlet information and the water outlet information are correct or not according to the liquid level information; wherein, whether the water outlet information and the water inlet information are collected correctly is judged through the change of the liquid level,

the liquid level information includes a liquid level fluctuation frequency and a liquid level variation.

As an embodiment of the present invention, the water amount detection module further includes:

an information reliability determination unit: the method is used for establishing an information verification model according to water outlet information and water inlet information, and determining the credibility of the water outlet information and the water inlet information by taking time as a unit:

in the above formula, Q represents the reliability of the outlet water information and the inlet water information; n represents the total number of detected time instants; w represents a characteristic value of the ultrasonic device; k_W[W^-1(Y₀-Y_t)]Representing the influence degree value of the ultrasonic device on water inlet and water outlet in the time period of 0-t; y is₀Representing the characteristic values of the water inlet information and the water outlet information at the starting time point; y is_tRepresenting the characteristic values of the water inlet information and the water outlet information at the t-th moment;

when Q is more than or equal to 1, representing that the water outlet information and the water inlet information are credible;

and when Q is less than 1, the water outlet information and the water inlet information are not credible.

In the technical scheme, based on the influence of the ultrasonic device on water inlet and outlet, the reliability of the data is calculated, and the reliability can show whether the real-time monitoring data of the water outlet information and the water inlet information is worth believing under the condition that the water inlet characteristic and the water outlet characteristic are introduced, so that the method verifies whether the water flow state data detected in a period of time is normal or abnormal, namely whether the acquired data is correct or incorrect, and displays the data in the form of a reliable value by taking time as a unit.

As an embodiment of the present invention, the fault detection module includes:

an information acquisition unit: the system is used for collecting the water flow state, the water inlet information and the water outlet information, dividing the water flow state, the water inlet information and the water outlet information according to time, and determining time data; the water flow state, the water inlet information and the water outlet information are obtained at any time, so that the water cooling system can be monitored in real time conveniently.

A water cooling judgment unit: the microwave ablation instrument is used for substituting the time data into a preset water cooling fault judgment model, judging whether the microwave ablation instrument has a fault at each time, and outputting judgment information;

the fault judgment of water cooling is a real-time monitoring judgment state, so that the time data is brought into a fault judgment model, and the water flow state can be dynamically detected.

A failure determination unit: the microwave ablation instrument is used for determining the fault position of the microwave ablation instrument according to the judgment information and outputting fault information; wherein the content of the first and second substances,

the fault information includes: fault location information and fault condition information.

When a fault occurs, the fault position is positioned immediately, fault information is output, the response efficiency of the fault event is improved, and the fault event can be processed quickly.

As an embodiment of the present invention, the fault detection module further includes:

an information verification unit: the water flow state, the water inlet information and the water outlet information are calculated through an entropy method, and a detection entropy value is determined; the entropy value is a characteristic deviation value of the water flow state, the water inlet information and the water outlet information, and the states of the real-time water flow state, the water inlet information and the water outlet information are determined.

A correction unit: the fault signal is corrected according to the detection entropy value, and a corrected fault signal is output; when a fault signal occurs, the characteristic deviation value of the water flow state, the water inlet information and the water outlet information is calculated through the entropy value, and the fault is calculated through the water flow state, the water inlet information and the water outlet information, so the entropy value is also a trend value of the fault, the fault signal contains fault information, and the fault signal can be corrected through the entropy value, and the most accurate fault signal is output.

Threshold unit: the system is used for setting an information threshold range, judging whether the water flow state, the water inlet information and the water outlet information are in the information threshold range or not according to the information threshold range, and outputting information to acquire an abnormal signal when the water flow state, the water inlet information and the water outlet information are not in the information threshold range. This is a mode of advanced judgment. When a fault occurs, the range judgment can be used as comparison judgment basic information of subsequent judgment.

As an embodiment of the present invention, the step of judging whether the water cooling is in fault by the water cooling fault judgment model includes:

step 1: acquiring normal water flow data of the microwave ablation instrument in a normal state; wherein the content of the first and second substances,

the normal water flow data includes: normal water flow state, normal water outlet information and normal water inlet information;

step 2: according to the normal water flow data, constructing a water flow model under a normal state:

wherein n represents the number of ultrasonic devices, and v represents_i,tThe flow velocity of the water detected by the ith ultrasonic device at the t-th moment is shown; s represents the cross-sectional area of the peristaltic tube; the above-mentioned

The average water flow speed of all the ultrasonic devices at the initial moment in a normal state is shown; the above-mentionedShowing the average water flow speed of all ultrasonic devices at the t-th moment in a normal state; vJ represents the water inlet speed in the normal state; the vC represents the water outlet speed in a normal state; the delta T represents a time value from the initial time to the T-th time;

and step 3: according to the water flow model in the normal state, a water cooling judgment model is constructed:

wherein, theThe average water flow speed of all ultrasonic devices at the t-th moment in the detection state is shown; the vJ_lRepresenting the water inlet speed in the detection state; the vC_lRepresenting the water outlet speed in the detection state; the above-mentioned

The average water flow speed of all ultrasonic devices at the initial moment in the detection state is shown;

and 4, step 4: will real-time average water inlet speed and the average water outlet speed of ultrasonic device substitute water cooling in proper order and judge the model, reach water cooling judgement result: wherein

When P is less than or equal to 1, the water cooling is free of faults;

when P > 1, it indicates that the water cooling is faulty.

The principle and the beneficial effects of the technical scheme are as follows: the invention is characterized in that the normal water flow state, the normal water outlet information and the normal water inlet information are adjusted in the normal state; and (4) building a model, determining the label of the normal operation parameters of the water cooling system in a normal state, and then judging the state by introducing real-time data so as to obtain the information of whether the cooling water is in fault. The invention can quickly judge whether the fault occurs or not and can also position the fault location.

As an embodiment of the present invention, the fault alarm module includes:

an alarm signal receiving unit: the fault detection device is used for receiving fault signals and determining fault information; wherein the content of the first and second substances,

the fault information includes: the position of the ultrasonic sensor corresponding to the fault signal and the number of the fault signals; when the alarm is given again, the positions of the ultrasonic sensors corresponding to the fault signals and the number of the fault signals are output simultaneously, so that the fault processing efficiency is improved.

A fault grading unit: the ultrasonic sensor is used for dividing fault grades according to the quantity ratio of the fault signals to the ultrasonic sensor; wherein the content of the first and second substances,

when the number ratio is greater thanThen, the fault level is the highest level;

when the number ratio is less thanAbove 0, the fault level is low; the fault grade is divided into a plurality of fault events, wherein when the microwave ablation instrument acts, the operation can be continued as far as possible under the condition that the operation can be completed, so that the operation interference is prevented, and the larger fault event is generated.

A fault level judgment unit; the fault level is determined according to the number of the fault signals, and a fault action instruction is output according to the fault level; wherein the content of the first and second substances,

when the fault level is the highest level, outputting a stop action instruction of the microwave ablation instrument;

and when the fault level is low, outputting a voice alarm action instruction.

Different action alarm instructions can be processed in different modes.

As an embodiment of the present invention, the fault alarm module further includes:

an alarm action module: is used for setting alarm action; wherein the content of the first and second substances,

the alarm action comprises a fault action instruction and a voice alarm action instruction; wherein the content of the first and second substances,

the fault action instruction is executed by a power switch arranged on the microwave ablation instrument;

the voice alarm action instruction is executed by a loudspeaker and a voice memory which are arranged on the microwave ablation instrument.

In the execution of the alarm action, the fault action command is a forced fault command, so the forced implementation command is realized by the execution of a power switch on the microwave ablation instrument, and the voice alarm voice is prestored on the voice alarm action command through a loudspeaker and a voice memory and is directly extracted when the alarm is needed.

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.