CN116983489A - Automatic constant-temperature flushing device for VSD drainage tube - Google Patents
Automatic constant-temperature flushing device for VSD drainage tube Download PDFInfo
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- CN116983489A CN116983489A CN202311009836.3A CN202311009836A CN116983489A CN 116983489 A CN116983489 A CN 116983489A CN 202311009836 A CN202311009836 A CN 202311009836A CN 116983489 A CN116983489 A CN 116983489A
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Classifications
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
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- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
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- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
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- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/83—Tube strippers, i.e. for clearing the contents of the tubes
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- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/84—Drainage tubes; Aspiration tips
- A61M1/85—Drainage tubes; Aspiration tips with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants
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- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
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- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
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- A—HUMAN NECESSITIES
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
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Abstract
A constant-temperature automatic flushing device for a VSD drainage tube is characterized in that a fluid flow value and a pipeline pressure value are collected through a flowmeter and a pipeline pressure sensor, a data processing and analyzing algorithm is introduced at the rear end to conduct time sequence correlation analysis of the fluid flow and the pipeline pressure so as to evaluate the smoothness degree of the drainage tube, and therefore whether the drainage tube is blocked or not is judged, if abnormal conditions such as blockage of the pipeline or unsmooth drainage are found, an automatic flushing instruction and a blockage early warning prompt are generated, and better treatment experience is provided for a patient.
Description
Technical Field
The invention relates to the technical field of intelligent flushing, in particular to a constant-temperature automatic flushing device for a VSD drainage tube.
Background
The negative pressure wound surface treatment technology is a new technology developed in recent years and is used for treating wound surfaces. The technology seals the open wound surface by using a biological semipermeable membrane, generates certain negative pressure by a special negative pressure machine, and acts on the wound surface after debridement by a drainage tube and dressing. The current research proves that the negative pressure wound treatment can accelerate the blood circulation of wound surface parts, obviously promote new blood vessels to enter the wound surface, stimulate the growth of granulation tissues, fully drain, relieve edema, reduce pollution and inhibit the growth of bacteria. The pure physiotherapy can directly accelerate wound healing or create conditions for surgical repair, and has the characteristics of high efficiency, simplicity and economy.
Clinically, after a patient performs VSD implantation, secretion (body fluid or blood) discharged from a wound surface easily blocks a VSD pipeline, and drainage effect is affected. Therefore, a timed flush of the drain is often required to maintain patency. At present, a common infusion apparatus is clinically used for flushing, and the infusion apparatus switch is turned on for flushing at certain intervals, so that the clinical nursing workload is increased. Moreover, if the flushing is forgotten or the flushing interval is too long, it can cause a blockage of the tubing, affecting the patient's treatment. In addition, the flushing liquid used at present has no heating and heat-preserving effects. When the washing is performed in cold weather, the washing liquid can irritate the affected part due to the large temperature difference between the washing liquid and the body temperature, and discomfort is caused to the patient.
Accordingly, a constant temperature automatic flushing device for VSD drain is desired.
Disclosure of Invention
The present invention has been made to solve the above-mentioned technical problems. The embodiment of the invention provides a constant-temperature automatic flushing device for a VSD drainage tube, which is used for collecting a fluid flow value and a pipeline internal pressure value through a flowmeter and a pipeline pressure sensor, introducing a data processing and analyzing algorithm at the rear end to perform time sequence correlation analysis of the fluid flow and the pipeline internal pressure so as to evaluate the unobstructed degree of the drainage tube, judging whether the drainage tube is blocked or not, and generating an automatic flushing instruction and a blocking early warning prompt if abnormal conditions such as blockage or unsmooth drainage of the pipeline are found, so that better treatment experience is provided for patients.
In a first aspect, there is provided a constant temperature automatic flushing device for a VSD drain, comprising:
a liquid storage bottle;
the flowmeter, the pipeline pressure sensor, the temperature sensor and the heating component are arranged on the liquid storage bottle;
the flushing pipe is communicated with the liquid storage bottle through an electric valve;
and a controller communicatively connected to the flow meter, the pipeline pressure sensor, the electric valve, the temperature sensor and the heating assembly, and used for controlling the opening and closing of the electric valve and the operation of the heating assembly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a constant temperature automatic flushing device for VSD draft tubes according to an embodiment of the present invention.
Fig. 2 is a block diagram of the controller in the VSD draft tube constant temperature automatic flushing device according to an embodiment of the present invention.
Fig. 3 is a flow chart of a constant temperature auto-flushing method for VSD draft tubes according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a constant temperature auto-flushing method architecture for VSD drainage tubes according to an embodiment of the present invention.
Fig. 5 is an application scenario diagram of a VSD draft tube constant temperature automatic flushing device according to an embodiment of the present invention.
Detailed Description
The following description of the technical solutions according to the embodiments of the present invention will be given with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Unless defined otherwise, all technical and scientific terms used in the embodiments of the invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
In describing embodiments of the present invention, unless otherwise indicated and limited thereto, the term "connected" should be construed broadly, for example, it may be an electrical connection, or may be a communication between two elements, or may be a direct connection, or may be an indirect connection via an intermediate medium, and it will be understood by those skilled in the art that the specific meaning of the term may be interpreted according to circumstances.
It should be noted that, the term "first\second\third" related to the embodiment of the present invention is merely to distinguish similar objects, and does not represent a specific order for the objects, it is to be understood that "first\second\third" may interchange a specific order or sequence where allowed. It is to be understood that the "first\second\third" distinguishing objects may be interchanged where appropriate such that embodiments of the invention described herein may be practiced in sequences other than those illustrated or described herein.
Having described the basic principles of the present invention, various non-limiting embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Negative pressure wound treatment (Negative Pressure Wound Therapy, NPWT) is an advanced medical technique for promoting wound healing by applying negative pressure, and is widely used in various types of wound treatment such as chronic wounds, wound infection, burns, surgical incisions, and the like.
NPWT systems are typically composed of the following components:
1. negative pressure pump: is responsible for generating and maintaining negative pressure around the wound surface.
2. Sealing dressing: covering the wound surface to form a sealed space, so that negative pressure can effectively act on the wound surface.
3. Drainage tube: is connected to the sealing dressing for draining wound secretions, blood and other body fluids.
The working principle of the NPWT is as follows: negative pressure is generated by the negative pressure pump, and air is pumped out of the space under the sealing dressing, so that a negative pressure environment is formed. Under the action of negative pressure, the blood vessels around the wound surface dilate, blood flow is increased, blood circulation is promoted, and sufficient oxygen and nutrient substances are provided. Negative pressure sucks out wound secretion, blood and other body fluids through the drainage tube, keeps the wound clean, and reduces the risk of infection. Negative pressure stimulates cell proliferation and tissue regeneration at the edge of the wound surface, promotes wound healing and reduces scar formation.
Further, by providing a suitable moist environment, promoting blood circulation and cell proliferation, the wound healing process is accelerated. The negative pressure environment can effectively remove wound secretions, reduce bacterial reproduction and reduce infection risk. Negative pressure can alleviate edema and pain of the wound surface, and provides comfortable treatment experience. The NPWT system has a simple operation interface and adjustable negative pressure control, and is convenient for medical staff to carry out treatment management.
It should be noted that NPWT is not applicable to all types of wounds, and that a suitable treatment regimen should be evaluated and selected prior to treatment based on the patient's specific conditions and characteristics of the wound. After a patient performs a VSD (ventricular septal defect) implantation, secretions (body fluids or blood) discharged from the wound may clog the VSD line, thereby affecting drainage. It is important to determine if a drain is occluded, as an occluded drain may lead to the occurrence of wound accumulation secretions, infections and other complications.
The method for judging whether the drainage tube is blocked comprises the following steps:
the amount and texture of drainage fluid was observed: normally, drainage fluid should be continuously discharged and gradually reduced in volume. If the amount of drainage fluid suddenly decreases or stops completely, or the texture of the drainage fluid becomes cloudy or solidifies, it may indicate that a blockage has occurred in the drainage tube.
Observing the unobstructed degree of the drainage tube: by checking the appearance and touch of the drainage tube, it is observed whether there is a blockage or a factor pressing the drainage tube. If significant blockage or constriction of the drain tube occurs, measures may be taken to unblock or improve patency.
Swelling and pain around the wound were monitored: the blocked drainage tube may cause fluid accumulation and swelling around the wound surface and even pain. If the patient develops symptoms of periwound swelling, pain or discomfort, this may be associated with drainage tube blockage.
Using ultrasound inspection: ultrasound examination can help determine if an occlusion or fluid accumulation is present within the drainage tube. Through the ultrasound images, the physician can observe the patency of the drainage tube and identify any possible blockage or obstruction.
The necessity of judging whether the drainage tube is blocked is to find and solve the drainage problem in time so as to avoid wound infection, hydrops, pain and other complications. If the drainage tube is suspected to be blocked, the medical professional should be informed to evaluate and process in time, and the medical professional can take proper measures, such as replacing the drainage tube, cleaning the wound surface, conducting drainage patency test and the like, so as to ensure the effectiveness of drainage and good healing of the wound surface.
At present, a common infusion apparatus is clinically used for flushing, and the infusion apparatus switch is turned on for flushing at certain intervals, so that the clinical nursing workload is increased. Moreover, if the flushing is forgotten or the flushing interval is too long, it can cause a blockage of the tubing, affecting the patient's treatment. In addition, the flushing liquid used at present has no heating and heat-preserving effects. When the washing is performed in cold weather, the washing liquid can irritate the affected part due to the large temperature difference between the washing liquid and the body temperature, and discomfort is caused to the patient.
Thus, in the present invention, a constant temperature automatic flushing device for VSD draft tubes is provided.
In one embodiment of the present invention, FIG. 1 is a block diagram of a VSD drain constant temperature automatic flushing device in accordance with an embodiment of the present invention. As shown in fig. 1, the VSD draft tube constant temperature automatic flushing device 100 according to an embodiment of the present invention includes: a liquid storage bottle 1; a flowmeter 2, a pipeline pressure sensor 3, a temperature sensor 4 and a heating component 5 which are arranged on the liquid storage bottle; a flushing pipe 6, wherein the flushing pipe 6 is communicated with the liquid storage bottle 8 through an electric valve 7; a controller 9 communicatively connected to the flow meter 2, the pipe pressure sensor 3, the electricity 7, the temperature sensor 4 and the heating element 5, and configured to control the opening and closing of the electric valve 7 and the operation of the heating element 5.
In the invention, the liquid storage bottle is used for storing flushing liquid and supplying the flushing liquid to the drainage tube for flushing operation. The flowmeter is arranged on the liquid storage bottle and is used for measuring the flow of the flushing liquid so as to ensure stable flow in the flushing process. The pipeline pressure sensor is arranged in the pipeline and is used for monitoring pressure change in the pipeline so as to evaluate the unobstructed degree and the blockage condition of the drainage tube. The temperature sensor is arranged near the drainage tube and used for monitoring the temperature around the drainage tube in real time so as to ensure constant-temperature flushing of drainage liquid. The heating assembly controls the temperature of the drainage liquid through the heating device to maintain a constant flush temperature, providing a comfortable therapeutic experience. The irrigation tube is connected to the drainage tube for introducing irrigation liquid into the drainage tube for irrigating the wound surface and keeping the wound surface clean. The electric valve controls the communication state between the flushing pipe and the liquid storage bottle, and the flow of flushing liquid is controlled by opening and closing the electric valve. The liquid storage bottle is used for storing flushing liquid and providing the flushing liquid for the drainage tube for flushing operation. The controller is used as a central control unit of the device and is communicated with the flowmeter, the pipeline pressure sensor, the electric valve, the temperature sensor and the heating component to control the opening and closing of the electric valve and the operation of the heating component. The controller can realize constant-temperature flushing and automatic control of the drainage tube according to the set parameters and feedback information.
This also allows for the implementation of the functions of the automatic constant temperature flushing device for VSD drain, including providing stable flushing flow, monitoring drain flow and occlusion, maintaining constant temperature flushing of drain fluid, and automatic control and regulation by the controller. This may improve drainage, reduce risk of blockage, and provide a better therapeutic experience.
Aiming at the technical problems, the technical concept of the invention is that a flowmeter and a pipeline pressure sensor are used for collecting a fluid flow value and a pipeline pressure value, a data processing and analyzing algorithm is introduced at the rear end to perform time sequence correlation analysis of the fluid flow and the pipeline pressure so as to evaluate the unobstructed degree of the drainage tube, thereby judging whether the drainage tube is blocked or not, and if abnormal conditions such as blockage or unsmooth drainage of the pipeline are found, an automatic flushing instruction and a blockage early warning prompt are generated, so that better treatment experience is provided for patients. And the device can also adaptively control the heating operation of the heating assembly based on the temperature data acquired by the temperature sensor, so that the constant temperature of flushing of the drainage tube is maintained.
Fig. 2 is a block diagram of the controller in the VSD draft tube constant temperature automatic flushing device according to an embodiment of the present invention. As shown in fig. 2, the controller 9 includes: a data acquisition module 110 for acquiring fluid flow values and in-line pressure values at a plurality of predetermined time points within a predetermined time period; the data analysis module 120 is configured to perform time sequence collaborative correlation analysis on the fluid flow values and the pressure values in the pipeline at the plurality of predetermined time points to obtain fluid flow-pressure interaction characteristics in the pipeline; a blockage detection module 130 is configured to determine whether to generate an automatic flush instruction and a blockage pre-warning prompt based on the fluid flow-in-line pressure interaction characteristic.
In the data acquisition module 110, fluid flow values and in-line pressure values are obtained at a plurality of predetermined points in time over a predetermined period of time. In the data acquisition process, accurate and reliable acquisition of real-time data of fluid flow and pressure in a pipeline is ensured. Further, the sampling frequency is set correctly, the sensor is calibrated, noise is eliminated, etc., to ensure that the acquired data has high quality and usability. The effective operation of the data acquisition module can provide real-time fluid flow and pipeline pressure data, and provides a basis for subsequent data analysis and blockage detection.
In the data analysis module 120, time-series collaborative correlation analysis is performed on fluid flow values and in-line pressure values at a plurality of predetermined time points to obtain fluid flow-in-line pressure interaction characteristics. In the data analysis process, factors such as time sequence, fluctuation, correlation and the like of the data are considered to extract effective characteristic information. When the time sequence collaborative correlation analysis is carried out, proper data processing and analysis algorithms are selected, such as methods of time sequence analysis, correlation analysis, feature extraction and the like. Meanwhile, preprocessing of data, such as abnormal value removal, data smoothing and the like, is performed to improve the accuracy and reliability of analysis. It will be appreciated that efficient operation of the data analysis module may help identify time-series correlation characteristics between fluid flow and pressure within the conduit, providing a basis for subsequent occlusion detection.
In the occlusion detection module 130, it is determined whether to generate an automatic flush command and an occlusion early warning prompt based on the fluid flow-in-line pressure interaction characteristics. By analyzing the change modes of flow and pressure, whether the drainage tube is blocked can be judged, and a flushing instruction is generated or a blocking early warning is sent according to the requirement. In the blockage detection process, a proper threshold or rule is set to judge whether the drainage tube is blocked or not. Meanwhile, characteristics and treatment requirements of different patients are considered to individually determine the flushing instruction and the triggering condition of blockage early warning. The effective operation of the blockage detection module can realize real-time monitoring of the smoothness of the drainage tube, and automatically generates a flushing instruction or sends blockage early warning according to a detection result, so that the treatment effect and the safety are improved.
Through the collaborative work of the data acquisition, data analysis and blockage detection module in the controller, the time sequence correlation analysis of the fluid flow and the pressure in the pipeline can be realized, whether the drainage tube is blocked or not can be accurately judged, corresponding measures are taken to ensure the smoothness of drainage, and the treatment effect and the safety are improved.
Specifically, in the technical scheme of the invention, first, fluid flow values and pressure values in a pipeline at a plurality of preset time points in a preset time period are obtained. It will be appreciated that the fluid flow value can directly reflect the patency of the drain tube, while the in-line pressure value can indirectly represent patency information of the drain tube, for example, if the pressure is abnormally high or low, possibly indicating that a blockage is present. Therefore, by performing collaborative correlation analysis on the time series changes of the fluid flow value and the pressure value in the pipeline, blockage detection and early warning of the drainage tube can be performed more accurately.
In one embodiment of the present invention, the data analysis module 120 includes: the data time sequence arrangement unit is used for arranging the fluid flow rate values and the pipeline internal pressure values at a plurality of preset time points into a fluid flow rate time sequence input vector and a pipeline internal pressure value time sequence input vector according to a time dimension respectively; the data time sequence feature extraction unit is used for extracting time sequence features of the fluid flow time sequence input vector and the pipeline internal pressure value time sequence input vector through a time sequence feature extractor based on a deep neural network model so as to obtain a fluid flow time sequence feature vector and a pipeline internal pressure value time sequence feature vector; and the fluid flow-in-pipeline pressure time sequence characteristic interaction unit is used for carrying out interactive association coding on the fluid flow time sequence characteristic vector and the in-pipeline pressure value time sequence characteristic vector so as to obtain the fluid flow-in-pipeline pressure interaction characteristic.
The deep neural network model is a one-dimensional convolutional neural network model.
Firstly, extracting time sequence characteristics through a deep neural network model, extracting key characteristic information from time sequence data of fluid flow and pipeline internal pressure, wherein the characteristics can reflect change modes, trends, periodicity and the like of the fluid flow and the pipeline internal pressure, and provide more representative and useful characteristic vectors for subsequent cross-correlation coding.
Then, through the interactive association coding, the time sequence characteristics of the fluid flow and the pipeline internal pressure can be fused and associated, so that more comprehensive and more accurate fluid flow-pipeline internal pressure interactive characteristics are obtained, the fluid flow-pipeline internal pressure interactive characteristics can reflect the relation, the mutual influence, the cooperative change and the like between the fluid flow and the pipeline internal pressure, and a more reliable basis is provided for blockage detection and flushing instruction generation.
And then, extracting representative and useful feature vectors from original fluid flow and pipeline internal pressure time sequence data, and carrying out cross-correlation coding on the feature vectors to obtain more comprehensive and more accurate fluid flow-pipeline internal pressure interactive features, wherein the fluid flow-pipeline internal pressure interactive features can provide a more reliable basis for generating subsequent blockage detection and flushing instructions, and improve the performance and effect of the device.
Next, it is considered that since the fluid flow value and the in-line pressure value have respective dynamic change regularity in the time dimension, and the timing cooperative correlation characteristics between the two have an important influence together on the patency degree evaluation of the drainage tube. Therefore, in the technical solution of the present invention, it is necessary to capture and characterize the time-series variation characteristic information of the fluid flow value and the pressure value in the pipe. Specifically, the fluid flow value and the in-line pressure value at the plurality of preset time points are firstly arranged into a fluid flow time sequence input vector and an in-line pressure value time sequence input vector according to the time dimension, so that the distribution information of the fluid flow value and the in-line pressure value in time sequence is integrated respectively.
And then, the fluid flow time sequence input vector and the pipeline internal pressure value time sequence input vector are respectively subjected to feature mining in a time sequence feature extractor based on a one-dimensional convolutional neural network model, so that time sequence associated feature information of the fluid flow value and the pipeline internal pressure value in a time dimension, namely time sequence change feature information of the fluid flow value and the pipeline internal pressure value is respectively extracted, and thus a fluid flow time sequence feature vector and a pipeline internal pressure value time sequence feature vector are obtained.
In one embodiment of the present invention, the fluid flow-in-line pressure timing characteristic interaction unit is configured to: and performing feature interaction based on an attention mechanism on the fluid flow time sequence feature vector and the pipeline internal pressure value time sequence feature vector by using an inter-feature attention interaction layer so as to obtain a fluid flow-pipeline internal pressure interaction feature vector as the fluid flow-pipeline internal pressure interaction feature.
Further, the inter-feature attention interaction layer is used for carrying out feature interaction based on an attention mechanism on the fluid flow time sequence feature vector and the in-pipeline pressure value time sequence feature vector to obtain a fluid flow-in-pipeline pressure interaction feature vector, so that the correlation and interaction between the fluid flow time sequence change feature and the in-pipeline pressure value time sequence change feature are captured. It should be appreciated that since the goal of the traditional attention mechanism is to learn an attention weight matrix, a greater weight is given to important features and a lesser weight is given to secondary features, thereby selecting more critical information to the current task goal. This approach is more focused on weighting the importance of individual features, while ignoring the dependency between features. The attention interaction layer between the features can capture the correlation and the mutual influence between the time sequence change features of the fluid flow and the time sequence change features of the pressure value in the pipeline through the feature interaction based on an attention mechanism, learn the dependency relationship between different features, and interact and integrate the features according to the dependency relationship, so that the fluid flow-pressure interaction feature vector in the pipeline is obtained.
Wherein the feature interactions based on the attention mechanisms weight interactions between different features to capture the relevance and importance between them. In this case, the inter-feature attention interaction layer is configured to perform attention mechanism-based feature interaction on the fluid flow time series feature vector and the in-line pressure value time series feature vector to obtain a fluid flow-in-line pressure interaction feature vector.
The main idea of feature interaction based on the attention mechanism is to interact each feature with other features by calculating the attention weight between different features. Thus, the model can pay more attention to the characteristics which are more useful for the current task, and the characteristics which are irrelevant to the task are ignored, and the attention weight can be dynamically adjusted according to the relevance and importance among the characteristics.
The fluid flow timing feature vector and the in-line pressure value timing feature vector are input to an inter-feature attention interaction layer. The layer interacts each feature vector with other feature vectors by calculating an attention weight, which is used to weight the feature vector, and the interaction process can be performed by means of a weighted sum. In this way, each feature vector can interact with other feature vectors and be weighted according to its importance in the current task.
By means of the feature interaction based on the attention mechanism, a fluid flow-in-pipeline pressure interaction feature vector can be obtained. The feature vector contains the correlation information between the fluid flow and the pressure in the pipeline, so that the dynamic change and interaction between the fluid flow and the pressure in the pipeline can be better captured. Such feature interactions may improve the performance and effectiveness of the model, providing a more reliable feature representation for subsequent occlusion detection and flushing instruction generation.
In one embodiment of the present invention, the jam detection module 130 includes: the characteristic distribution optimizing unit is used for carrying out characteristic distribution optimization on the fluid flow-in-pipeline pressure interaction characteristic vector so as to obtain an optimized fluid flow-in-pipeline pressure interaction characteristic vector; the blockage judging unit is used for enabling the optimized fluid flow-in-pipeline pressure interaction characteristic vector to pass through a classifier to obtain a classification result, wherein the classification result is used for indicating whether blockage occurs or not; and the flushing quality generation and blockage early warning unit is used for generating an automatic flushing instruction and a blockage early warning prompt based on the classification result.
It should be appreciated that through feature distribution optimization, the interaction feature vector can be adjusted and optimized to better meet the requirements of the occlusion detection task. The optimized feature vector can improve the distinguishing capability of the model and the sensitivity to blocking features, so that the accuracy and the reliability of blocking detection are improved.
The classifier is used for judging the optimized feature vector, so that whether blockage occurs can be accurately determined. The classification result can be provided for a subsequent flushing quality generation and blockage early warning unit as a basis for decision-making. According to the classification result, the flushing quality generation and blockage early warning unit can automatically generate flushing instructions and blockage early warning prompts, so that flushing measures can be timely taken, blockage is removed, and the pipeline is kept unobstructed. Meanwhile, the blockage early warning prompt can remind operators of paying attention to blockage conditions, and the blockage early warning prompt can be used for timely processing, so that further problems are avoided.
Wherein the feature distribution optimizing unit includes: the dense point distribution sampling fusion subunit is used for carrying out homogeneous Gilbert space metric dense point distribution sampling fusion on the fluid flow time sequence feature vector and the pipeline internal pressure value time sequence feature vector so as to obtain a fusion feature vector; and the characteristic optimization fusion subunit is used for fusing the fusion characteristic vector and the fluid flow-in-pipeline pressure interaction characteristic vector to obtain the optimized fluid flow-in-pipeline pressure interaction characteristic vector.
And then, the fluid flow-in-pipeline pressure interaction characteristic vector is passed through a classifier to obtain a classification result, wherein the classification result is used for indicating whether blockage occurs or not. That is, the time sequence interaction correlation characteristic information between the time sequence change characteristic of the fluid flow and the time sequence change characteristic of the pressure value in the pipeline is classified, so that detection and judgment on whether the drainage tube is blocked or not is performed based on the cooperative change condition between the actual fluid flow and the pressure in the pipeline, and an automatic flushing instruction and a blocking early warning prompt are generated when abnormality is detected, so that better treatment experience is provided for patients.
In particular, in the technical solution of the present invention, the inter-feature attention layer may extract an interaction feature expressing a dependency relationship between the fluid flow time series feature vector and the in-line pressure value time series feature vector, so as to obtain the fluid flow-in-line pressure interaction feature vector, and therefore, if the representation of the fluid flow time series feature vector and the in-line pressure value time series feature vector with respect to the local time series correlation feature of the fluid flow value and the in-line pressure value expressed by the fluid flow time series feature vector and the in-line pressure value time series feature vector by the fluid flow-in-line pressure interaction feature vector can be further enhanced, the expression effect of the fluid flow-in-line pressure interaction feature vector may be improved.
And, the applicant of the present invention considers that the fluid flow time series characteristic vector and the in-pipeline pressure value time series characteristic vector are respectively the densely-collected type local correlation characteristic expression of the fluid flow value and the in-pipeline pressure value at the plurality of preset time points under the one-dimensional convolution kernel scale based on time series homogeneous coding, and thus the fluid flow time series characteristic vector is marked as V 1 And the time sequence characteristic vector of the pressure value in the pipeline, such as V 2 The homogeneous Gilbert space metric dense point distribution sampling fusion is carried out, and the method is specifically expressed as follows: performing homogeneous Gilbert space metric dense point distribution sampling fusion on the fluid flow time sequence feature vector and the pipeline internal pressure value time sequence feature vector by using the following fusion optimization formula to obtain the fusion feature directionAn amount of; the fusion optimization formula is as follows:
wherein V is 1 Is the time sequence characteristic vector of the fluid flow, V 2 Is the time sequence characteristic vector of the pressure value in the pipeline, V 2 T Is the transposed vector of the time sequence characteristic vector of the pressure value in the pipeline, L p (. Cndot. ) represents the mintype distance, and p is the superparameter,and->The fluid flow time sequence feature vector and the global feature average value of the pressure value time sequence feature vector in the pipeline are respectively, and the fluid flow time sequence feature vector V 1 And the time sequence characteristic vector V of the pressure value in the pipeline 2 Are all row vectors, +.>For addition by position, V r Is the fusion feature vector.
Here, by applying the fluid flow timing feature vector V to 1 And the time sequence characteristic vector V of the pressure value in the pipeline 2 Homogeneous gilbert spatial metric of the feature distribution center of (c) for the fluid flow timing feature vector V 1 And the time sequence characteristic vector V of the pressure value in the pipeline 2 Fusion of feature distributions in a high-dimensional feature spaceThe real (ground-trunk) geometric center constraint of the feature manifold hyperplane is used, point-by-point feature association of cross distance constraint is used as a bias term to realize feature dense point sampling pattern distribution fusion in association constraint limits of feature distribution, and therefore homogeneous sampling association fusion among vectors is enhanced. Then, the feature vector V is fused c And the characteristic expression of the fluid flow-in-pipeline pressure interaction characteristic vector can be improved by fusing the fluid flow-in-pipeline pressure interaction characteristic vector, so that the accuracy of a classification result obtained by the classifier is improved. Therefore, the unobstructed degree of the drainage tube can be estimated based on the cooperative change condition between the actual fluid flow and the pressure in the pipeline, and detection and judgment on whether the drainage tube is blocked or not can be performed, so that an automatic flushing instruction and a blocking early warning prompt are generated when abnormality is detected, and better treatment experience is provided for a patient.
In summary, a constant temperature automatic flushing device 100 for a VSD drain tube in accordance with an embodiment of the present invention is illustrated, which is capable of adaptively performing heating operation control of a heating assembly based on temperature data collected by a temperature sensor, thereby maintaining a constant flushing temperature of the drain tube.
In another embodiment of the present invention, a constant temperature automatic flushing device for a VSD drain is provided, comprising a liquid storage bottle, a control system, a heating assembly, a temperature sensor, a valve and a flushing pipe, wherein the control system, the heating assembly and the temperature sensor are all arranged on the liquid storage bottle. Specifically, the heating component is an electric heater. Preferably, the heating assembly employs a variable frequency electric heater.
Specifically, the temperature sensor is installed the stock solution bottle inner wall for detect the temperature of the interior flushing fluid of stock solution bottle. The temperature sensor is selected from the conventional options in the prior art. The valve is arranged at the bottom of the liquid storage bottle and is communicated with the bottom of the liquid storage bottle. The flushing pipe is connected with the valve and is communicated with the liquid storage bottle through the valve.
The control system can control the opening and closing of the valve at regular time and control the opening and closing of the heating component and the working power according to the detection temperature fed back by the temperature sensor; the heating assembly, the temperature sensor and the valve are all electrically connected with the control system.
Specifically, control system includes touch display screen, singlechip and power, heating element temperature sensor the valve the touch display screen the singlechip all with the power electricity is connected, touch display screen sets up on the stock solution bottle outer wall, touch display screen with the two-way electricity of singlechip is connected.
The control system further comprises a comparator, wherein the comparator is used for receiving temperature data transmitted by the temperature sensor and comparing the temperature data with a preset temperature threshold, the comparator is electrically connected with the temperature sensor, and the comparator is electrically connected with the singlechip in a bidirectional manner.
The control system also comprises a timer, wherein the timer is used for opening and closing the valve at fixed time and is electrically connected with the singlechip in a bidirectional manner. Preferably, the singlechip is an MSP430 singlechip, and the comparator and the timer are directly integrated in the MSP430 singlechip.
The flushing pipe is provided with a flowmeter and a flow regulating switch, and the flowmeter is electrically connected with the singlechip. The flow regulating switch is selected by the person skilled in the art.
In order to avoid the flushing liquid to cool when flowing through the tail end of the flushing pipe, the liquid storage bottle and the outer wall of the flushing pipe are both provided with heat insulation layers. The heat preservation layer is made of common heat preservation materials such as felt and is coated on the surfaces of the liquid storage bottle and the flushing pipe.
The side wall of the liquid storage bottle is provided with scales for marking the volume. The upper end of the liquid storage bottle is provided with a bottle mouth for adding flushing fluid.
The working principle and the working process of the invention are as follows: the temperature sensor collects the temperature of the flushing fluid in the liquid storage bottle, then the temperature is transmitted to the MSP430 singlechip, the MSP430 singlechip analyzes and processes the received data to obtain the temperature of the current actually measured flushing fluid, and the touch display screen is controlled to display the temperature of the current actually measured flushing fluid. Meanwhile, the MSP430 singlechip compares the obtained current actually measured flushing fluid temperature with the preset flushing fluid temperature set by a user through the touch display screen through the comparator, and when the actually measured flushing fluid temperature is higher than the preset temperature, the MSP430 singlechip controls the heating assembly to be turned off for heating, and the temperature of the flushing fluid is reduced until the preset temperature is reached; when the measured temperature of the flushing liquid is lower than the preset temperature, the MSP430 singlechip controls the heating assembly to start heating, and reduces the temperature of the flushing liquid until the temperature reaches the preset temperature.
It should be understood that, VSD drainage tube constant temperature automatic flushing device, control system can the timing control valve be opened and close, regularly wash the drainage tube, prevent that the drainage tube from blockking up, let medical personnel or family members release from loaded down with trivial details washing work. Be provided with temperature sensor and heating element in the stock solution bottle, can preheat the flushing fluid in the stock solution bottle when weather is cold, with the flushing fluid heating to the temperature close with the body temperature, avoid producing the stimulation to the affected part, the patient uses comfortablely, washes the drainage tube with hot water simultaneously, and the washing effect is better. The heat preservation on the flushing pipe can be fine maintain the temperature of the flushing fluid in the flushing pipe, reduce the heat loss that the heat caused of flushing fluid and external environment exchange, avoid the flushing fluid to cool when flowing through the flushing pipe end. The touch display screen can display the flushing time, the flow speed, the flow and the residual quantity of the flushing liquid in real time, and is convenient to regulate and control.
In one embodiment of the present invention, FIG. 3 is a flow chart of a method for constant temperature auto-flushing of a VSD drain according to an embodiment of the present invention. Fig. 4 is a schematic diagram of a constant temperature auto-flushing method architecture for VSD drainage tubes according to an embodiment of the present invention. As shown in fig. 3 and 4, the constant temperature automatic flushing method of the VSD drainage tube comprises the following steps: 210, acquiring fluid flow values and pressure values in the pipeline at a plurality of preset time points in a preset time period; 220, performing time sequence collaborative correlation analysis on the fluid flow values and the pipeline internal pressure values at a plurality of preset time points to obtain fluid flow-pipeline internal pressure interaction characteristics; 230, determining whether to generate an automatic flushing instruction and a blockage pre-warning prompt based on the fluid flow-in-line pressure interaction characteristic.
It will be appreciated by those skilled in the art that the specific operation of the various steps in the above-described method for automatically flushing a constant temperature of a VSD drain has been described in detail in the above description of the apparatus for automatically flushing a constant temperature of a VSD drain with reference to fig. 1 to 2, and thus, repetitive descriptions thereof will be omitted.
Fig. 5 is an application scenario diagram of a VSD draft tube constant temperature automatic flushing device according to an embodiment of the present invention. As shown in fig. 5, in this application scenario, first, fluid flow values (e.g., C1 as illustrated in fig. 5) and in-line pressure values (e.g., C2 as illustrated in fig. 5) at a plurality of predetermined time points within a predetermined period of time are acquired; the acquired fluid flow value and in-line pressure value are then input into a server (e.g., S as illustrated in fig. 5) deployed with a VSD drain constant temperature automatic flushing algorithm, wherein the server is capable of processing the fluid flow value and in-line pressure value based on the VSD drain constant temperature automatic flushing algorithm to determine whether to generate an automatic flushing command and a blockage warning prompt.
The basic principles of the present invention have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present invention are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be considered as essential to the various embodiments of the present invention. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the invention is not necessarily limited to practice with the above described specific details.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the invention to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
Claims (8)
1. A constant temperature automatic flushing device for VSD drainage tubes, comprising:
a liquid storage bottle;
the flowmeter, the pipeline pressure sensor, the temperature sensor and the heating component are arranged on the liquid storage bottle;
the flushing pipe is communicated with the liquid storage bottle through an electric valve;
and a controller communicatively connected to the flow meter, the pipeline pressure sensor, the electric valve, the temperature sensor and the heating assembly, and used for controlling the opening and closing of the electric valve and the operation of the heating assembly.
2. The VSD draft tube constant temperature automatic flushing device of claim 1, wherein the controller includes:
the data acquisition module is used for acquiring fluid flow values and pipeline pressure values at a plurality of preset time points in a preset time period;
the data analysis module is used for carrying out time sequence collaborative association analysis on the fluid flow values and the pipeline internal pressure values at a plurality of preset time points so as to obtain fluid flow-pipeline internal pressure interaction characteristics;
and the blockage detection module is used for determining whether to generate an automatic flushing instruction and a blockage early warning prompt based on the fluid flow-pipeline pressure interaction characteristic.
3. The VSD drain constant temperature automatic flushing device of claim 2, wherein the data analysis module comprises:
the data time sequence arrangement unit is used for arranging the fluid flow rate values and the pipeline internal pressure values at a plurality of preset time points into a fluid flow rate time sequence input vector and a pipeline internal pressure value time sequence input vector according to a time dimension respectively;
the data time sequence feature extraction unit is used for extracting time sequence features of the fluid flow time sequence input vector and the pipeline internal pressure value time sequence input vector through a time sequence feature extractor based on a deep neural network model so as to obtain a fluid flow time sequence feature vector and a pipeline internal pressure value time sequence feature vector;
and the fluid flow-in-pipeline pressure time sequence characteristic interaction unit is used for carrying out interactive association coding on the fluid flow time sequence characteristic vector and the in-pipeline pressure value time sequence characteristic vector so as to obtain the fluid flow-in-pipeline pressure interaction characteristic.
4. The VSD drain tube constant temperature automatic flushing device of claim 3, wherein the deep neural network model is a one-dimensional convolutional neural network model.
5. The VSD drain constant temperature automatic flushing device of claim 4, wherein the fluid flow-in-line pressure timing characteristic interaction unit is configured to: and performing feature interaction based on an attention mechanism on the fluid flow time sequence feature vector and the pipeline internal pressure value time sequence feature vector by using an inter-feature attention interaction layer so as to obtain a fluid flow-pipeline internal pressure interaction feature vector as the fluid flow-pipeline internal pressure interaction feature.
6. The VSD drain constant temperature automatic flushing device of claim 5, wherein the occlusion detection module includes:
the characteristic distribution optimizing unit is used for carrying out characteristic distribution optimization on the fluid flow-in-pipeline pressure interaction characteristic vector so as to obtain an optimized fluid flow-in-pipeline pressure interaction characteristic vector;
the blockage judging unit is used for enabling the optimized fluid flow-in-pipeline pressure interaction characteristic vector to pass through a classifier to obtain a classification result, wherein the classification result is used for indicating whether blockage occurs or not; and
and the flushing quality generation and blockage early warning unit is used for generating an automatic flushing instruction and a blockage early warning prompt based on the classification result.
7. The VSD draft tube constant temperature automatic flushing device according to claim 6, wherein the characteristic distribution optimizing unit includes:
the dense point distribution sampling fusion subunit is used for carrying out homogeneous Gilbert space metric dense point distribution sampling fusion on the fluid flow time sequence feature vector and the pipeline internal pressure value time sequence feature vector so as to obtain a fusion feature vector;
and the characteristic optimization fusion subunit is used for fusing the fusion characteristic vector and the fluid flow-in-pipeline pressure interaction characteristic vector to obtain the optimized fluid flow-in-pipeline pressure interaction characteristic vector.
8. The VSD drain constant temperature automatic flushing device of claim 7, wherein the dense point distribution sampling fusion subunit is configured to: carrying out homogeneous Gilbert space metric dense point distribution sampling fusion on the fluid flow time sequence feature vector and the pipeline internal pressure value time sequence feature vector by using the following fusion optimization formula to obtain the fusion feature vector;
the fusion optimization formula is as follows:
wherein V is 1 Is the time sequence characteristic vector of the fluid flow, V 2 Is the time sequence characteristic vector of the pressure value in the pipeline, V 2 T Is the transposed vector of the time sequence characteristic vector of the pressure value in the pipeline, L p (. Cndot. ) represents the mintype distance, and p is the superparameter,and->The fluid flow time sequence feature vector and the global feature average value of the pressure value time sequence feature vector in the pipeline are respectively, and the fluid flow time sequence feature vector V 1 And the time sequence characteristic vector V of the pressure value in the pipeline 2 Are all row vectors, +.>For addition by position, V r Is the fusion feature vector.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117618708A (en) * | 2024-01-26 | 2024-03-01 | 吉林大学 | Intelligent monitoring system and method for intravenous infusion treatment |
| CN117970856A (en) * | 2024-03-29 | 2024-05-03 | 杭州七所科技有限公司 | Automatic control system and method for unattended washing module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117618708A (en) * | 2024-01-26 | 2024-03-01 | 吉林大学 | Intelligent monitoring system and method for intravenous infusion treatment |
| CN117618708B (en) * | 2024-01-26 | 2024-04-05 | 吉林大学 | Intelligent monitoring system and method for intravenous infusion treatment |
| CN117970856A (en) * | 2024-03-29 | 2024-05-03 | 杭州七所科技有限公司 | Automatic control system and method for unattended washing module |
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Application publication date: 20231103 |
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