Vascular access monitoring method and system for dialysis patient

Abstract

The invention discloses a vascular access monitoring method and system for a dialysis patient, relates to the technical field of medical monitoring, and realizes comprehensive monitoring of vascular conditions of the dialysis patient by collecting historical medical records and real-time vascular access data of the dialysis patient and establishing a first data set and a second data set. According to the method, the blood flow coefficients are comprehensively evaluated, then the first blood flow coefficient Alx and the second blood flow coefficient Blx are analyzed through the evaluation and early warning module, the evaluation result is generated, the blood vessel problem possibly causing serious consequences to a patient can be recognized earlier, historical blood data and real-time blood data are systematically collected and analyzed, and the accuracy of blood flow analysis is improved. According to the method, the dialysis effect coefficient Txs calculated in real time is compared with the preset proportion threshold value P, a dialysis report is generated immediately, and the blood change of a patient in the dialysis process can be understood more comprehensively, so that the overall efficiency and safety of dialysis treatment are improved, and a dialysis scheme is adjusted timely and flexibly according to an evaluation result.

Description

Technical Field

[0001] The present invention relates to the field of medical technology, and in particular to a vascular access monitoring method and system for dialysis patients. Background Art

[0002] Monitoring vascular access in dialysis patients helps assess whether it functions normally. Regular monitoring of vascular access can timely detect and prevent possible complications, such as thrombosis, vascular stenosis, vascular damage, etc., thereby reducing the risks and complications associated with vascular access. Maintaining good vascular access function is crucial to the quality of life of dialysis patients. Regular monitoring of vascular access can help patients prevent and reduce vascular-related complications, reduce their pain and discomfort, and improve their quality of life.

[0003] However, traditional dialysis treatment relies on regular or occasional checks on vascular status, which cannot promptly capture vascular changes during treatment, and cannot promptly and effectively detect potential problems in patients and issue early warnings. Summary of the invention

[0004] Technical issues solved

[0005] In view of the shortcomings of the prior art, the present invention provides a vascular access monitoring method and system for dialysis patients, which solves the problem mentioned in the background art that it is not possible to timely and effectively detect potential problems of patients and issue early warnings.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vascular access monitoring method and system for dialysis patients, a vascular access monitoring system for dialysis patients, characterized in that it includes an information acquisition module, a first data calculation module, an evaluation and early warning module, a second data calculation module and a remote monitoring and evaluation module;

[0008] The information acquisition module is used to collect historical medical records and real-time medical records of dialysis patients, and includes a first acquisition unit and a second acquisition unit. The first acquisition unit extracts first vascular access information of the dialysis patient according to the historical medical records of the dialysis patient and establishes a first vascular access data set, and then extracts second vascular access information according to the real-time medical records and establishes a second vascular access data set;

[0009] The first data calculation module is used to perform dimensionless processing on the data in the first vascular access data set and the second vascular access data set in the first acquisition unit, and then calculate the first blood flow coefficient Alx and the second blood flow coefficient Blx in association;

[0010] The evaluation and early warning module is used to evaluate the first blood flow coefficient Alx and the second blood flow coefficient Blx, and generate a first evaluation result, a second evaluation result and a third evaluation result respectively. When the patient is in the state of the first evaluation result, he cannot be directly healed. When the patient is in the state of the third evaluation result, he is directly healed. When the patient is in the state of the second evaluation result, the hemodialysis patient's historical blood data and the hemodialysis patient's real-time blood data need to be input into the second data calculation module for reanalysis.

[0011] The second data calculation module is used to integrate and calculate the historical blood data of the dialysis patient and the real-time blood data of the dialysis patient to generate a real-time dialysis effect coefficient Txs;

[0012] The remote monitoring and evaluation module is used to evaluate the preset ratio threshold P and the dialysis effect coefficient Txs, and generate a first dialysis report and a second dialysis report respectively, and adjust the dialysis plan according to the first dialysis report and the second dialysis report while referring to all the patient information to determine whether the patient can undergo dialysis.

[0013] Preferably, the first vascular access data set is obtained by extracting ultrasound examination reports in historical medical records of dialysis patients, including historical blood flow velocity Axls, vascular cross-sectional area Axgm, arterial diameter Adjm and venous diameter Ajmz;

[0014] The second vascular access information of the first acquisition unit is collected in real time through ultrasound examination during the treatment process. Since the blood vessels will also change in real time due to the continuous changes in physiological and environmental factors, a second vascular access data set is established. The second vascular access data set includes a second blood vessel cross-sectional area Bxgm, a blood flow rate Bxls, and a dialysis access length Btxc;

[0015] The second collection module in the information collection module is used to collect historical blood data and real-time blood data of dialysis patients.

[0016] Preferably, the first blood flow coefficient Alx is calculated as follows:

[0017]

[0018] Wherein, Adjm is the arterial diameter, Ajmz is the venous diameter, Axls is the blood flow velocity, bzls is the preset standard blood flow velocity normal threshold, Axgm is the blood vessel cross-sectional area, w1, w2 and w3 are all weight values, and w1, w2 and w3 are not 0 and 1, A is a correction constant, and the values ​​of w1, w2, w3 and A are adjusted and set by the user.

[0019] Preferably, the second blood flow coefficient Blx is calculated as follows:

[0020]

[0021] Wherein, z1, z2 and z3 represent the proportional coefficients of the second blood vessel cross-sectional area Bxgm, blood flow velocity Bxls and dialysis pathway length Btxc, respectively.

[0022] Preferably, the evaluation and early warning module generates a corresponding evaluation result by comparing and evaluating the changes between the first blood flow coefficient Alx and the second blood flow coefficient Blx. The specific evaluation scheme is as follows:

[0023] When Agyl>Blx, it means that the blood flow velocity of the current dialysis patient has become low, the blood flow has decreased, the vascular wall and vascular elasticity are abnormal, and there is a risk of vascular blockage. The first assessment result is generated and an early warning instruction is sent to the outside. The patient cannot undergo dialysis immediately;

[0024] When Agyl=Blx, it means that the blood flow velocity and blood flow of the current dialysis patient have not changed, and the vascular wall and vascular elasticity are normal. The second evaluation result is generated and an upload instruction is issued to perform a secondary analysis of the patient's blood data;

[0025] When Agyl<Blx, it means that blood fluidity is enhanced, blood flow is increased, blood vessel wall and blood vessel elasticity are normal, and there is no risk of blood vessel blockage. The third assessment result is generated and an upload instruction is issued, indicating that the patient will undergo dialysis directly.

[0026] Preferably, the second acquisition unit in the first data calculation module collects historical blood data of dialysis patients through historical medical records of dialysis patients, including historical urea nitrogen concentration Ansd and average dialysis time Tsc; and collects real-time carbon C, oxygen O, nitrogen N, hydrogen H and distribution volume Frj of urea nitrogen concentration in real-time blood data of dialysis patients through dialysis monitoring instruments.

[0027] Preferably, the second data calculation module is used to perform dimensionless processing based on carbon C, oxygen O, nitrogen N and hydrogen H, and then perform correlation calculation to obtain the real-time blood concentration state coefficient Nsd:

[0028] The real-time blood concentration state coefficient Nsd is obtained by the following formula:

[0029]

[0030] In the formula, C1, O1, N1 and H1 represent the reference values ​​of the contents of carbon, oxygen, nitrogen and hydrogen elements respectively, k represents the proportionality coefficient, and 0<k<1, and the value of k is adjusted and set by the user.

[0031] Preferably, the second data calculation module calculates and obtains the real-time dialysis effect coefficient Txs by the following formula:

[0032]

[0033] In the formula, Frj represents the distribution volume of urea nitrogen concentration, Tsc represents the average dialysis time, Ansd represents the historical urea nitrogen concentration, q1, q2, q3 and q4 are respectively the ratio values ​​of the historical urea nitrogen concentration Ansd, the urea nitrogen concentration Nsd, the distribution volume Frj of urea nitrogen concentration and the average dialysis time Tsc, and the specific values ​​are adjusted and set by the user, and ln10 represents the logarithmic operation with the natural number 10 as the base.

[0034] Preferably, the remote monitoring and evaluation module is used to evaluate and generate corresponding results through a preset ratio threshold value P and a real-time dialysis effect coefficient Txs:

[0035] When the real-time dialysis effect coefficient Txs ≥ the preset ratio threshold P, it means that the current patient's dialysis effect is normal, the dialysis clearance rate is high, and dialysis continues;

[0036] When the real-time dialysis effect coefficient Txs is less than the preset ratio threshold P, it means that the current dialysis effect of the patient is abnormal, the dialysis clearance rate is low, and the dialysis plan should be adjusted.

[0037] Preferably, a vascular access monitoring method for dialysis patients is applied to a vascular access monitoring system for dialysis patients according to any one of claims 1 to 9, comprising the following steps:

[0038] Step 1: collecting historical medical records and real-time medical records of dialysis patients through an information collection module, including a first collection unit and a second collection unit, wherein the first collection unit extracts and establishes a first vascular access data set according to the historical medical records of the dialysis patient, and then extracts and establishes a second vascular access data set according to the real-time medical records;

[0039] Step 2: After dimensionless processing of the data in the first vascular access data set and the second vascular access data set in the first acquisition unit by the first data calculation module, the first blood flow coefficient Alx and the second blood flow coefficient Blx are calculated in association with each other;

[0040] Step 3: Evaluate the first blood flow coefficient Alx and the second blood flow coefficient Blx through the evaluation and early warning module, and generate a first evaluation result, a second evaluation result and a third evaluation result respectively. When the patient is in the state of the first evaluation result, he cannot be directly healed. When the patient is in the state of the third evaluation result, he can be directly healed. When the patient is in the state of the second evaluation result, the historical blood data of the hemodialysis patient and the real-time blood data of the hemodialysis patient need to be input into the second data calculation module for reanalysis.

[0041] Step 4: The historical blood data of the dialysis patient and the real-time blood data of the dialysis patient are integrated and calculated by the second data calculation module to generate a real-time dialysis effect coefficient Txs;

[0042] Step 5: Evaluate the preset ratio threshold value P and the dialysis effect coefficient Txs through the remote monitoring and evaluation module, and generate the first dialysis report and the second dialysis report respectively, and adjust the dialysis plan according to the first dialysis report and the second dialysis report while referring to all the patient information to determine whether the patient can undergo dialysis.

[0043] Beneficial Effects

[0044] The present invention provides a method and system for monitoring vascular access for dialysis patients, which has the following beneficial effects:

[0045] (1) A vascular access monitoring method and system for dialysis patients realizes comprehensive monitoring and evaluation of the vascular and blood conditions of dialysis patients by establishing a first acquisition unit and a second acquisition unit, and then uses an evaluation and early warning module to analyze the first blood flow coefficient Alx and the second blood flow coefficient Blx to generate an evaluation result, so that the patient's risk can be more accurately evaluated based on current and historical data, and vascular problems that may cause serious consequences to the patient can be identified earlier.

[0046] (2) The vascular access monitoring method and system for dialysis patients collects and analyzes historical blood data and real-time blood data, and compares the dialysis effect coefficient Txs calculated in real time with a preset ratio threshold P, performs a secondary evaluation on dialysis patients with different indicators and generates a dialysis report, thereby improving the overall efficiency and safety of dialysis treatment. Medical staff can directly refer to the generated evaluation information and dialysis effect report whether arranging patients for dialysis or adjusting the plan, without having to conduct examinations or review the patient's medical records, making the treatment work of medical staff more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram of a process framework of a vascular access monitoring method for dialysis patients according to the present invention;

[0048] Figure 2 The present invention is a schematic structural diagram of a vascular access monitoring system for dialysis patients. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Example 1

[0051] See also Figure 1 , a vascular access monitoring system for dialysis patients, characterized by: comprising an information acquisition module, a first data calculation module, an evaluation and early warning module, a second data calculation module and a remote monitoring and evaluation module;

[0052] The information acquisition module is used to collect historical medical records and real-time medical records of dialysis patients, and includes a first acquisition unit and a second acquisition unit. The first acquisition unit extracts first vascular access information of the dialysis patient according to the historical medical records of the dialysis patient and establishes a first vascular access data set, and then extracts second vascular access information according to the real-time medical records and establishes a second vascular access data set;

[0053] The first data calculation module is used to perform dimensionless processing on the data in the first vascular access data set and the second vascular access data set in the first acquisition unit, and then calculate the first blood flow coefficient Alx and the second blood flow coefficient Blx in association;

[0054] The evaluation and early warning module is used to evaluate the first blood flow coefficient Alx and the second blood flow coefficient Blx, and generate a first evaluation result, a second evaluation result and a third evaluation result respectively. When the patient is in the state of the first evaluation result, he cannot be directly healed. When the patient is in the state of the third evaluation result, he is directly healed. When the patient is in the state of the second evaluation result, the hemodialysis patient's historical blood data and the hemodialysis patient's real-time blood data need to be input into the second data calculation module for reanalysis.

[0055] The second data calculation module is used to integrate and calculate the historical blood data of the dialysis patient and the real-time blood data of the dialysis patient to generate a real-time dialysis effect coefficient Txs;

[0056] The remote monitoring and evaluation module is used to evaluate the preset ratio threshold P and the dialysis effect coefficient Txs, and generate a first dialysis report and a second dialysis report respectively, and adjust the dialysis plan according to the first dialysis report and the second dialysis report while referring to all the patient information to determine whether the patient can undergo dialysis.

[0057] During the operation of this system, the first vascular access information of dialysis patients is extracted through the historical medical records of dialysis patients, and the first vascular access information during the treatment process is collected in real time through ultrasound examination, and a corresponding data set is established to provide basic data for monitoring the patient's vascular access status, which helps to understand the historical changes and conditions of the patient's vascular access; by calculating and evaluating the first blood flow coefficient Alx and the second blood flow coefficient Blx, vascular access problems or abnormal dialysis effects are discovered in time, early warning information is provided, and the patient's risks are reduced; and the blood data acquisition module collects and stores the historical blood data and real-time blood data of dialysis patients, providing complete blood data support for evaluating dialysis effects and vascular access monitoring; the second data calculation module and the remote monitoring and evaluation module provide quantitative evaluation of the dialysis treatment effect, conduct secondary evaluation of dialysis patients, discover problems in time and adjust treatment plans, and improve treatment effects and patient quality of life.

[0058] Example 2

[0059] See also Figure 1 The first vascular access data set is obtained by extracting ultrasound examination reports in historical medical records of dialysis patients, including historical blood flow velocity Axls, vascular cross-sectional area Axgm, arterial diameter Adjm and venous diameter Ajmz;

[0060] The second vascular access information of the first acquisition unit is acquired in real time through ultrasound examination. Due to the continuous changes in physiological and environmental factors, the blood vessels will also change in real time, so a second vascular access data set is established. The second vascular access data set includes a second blood vessel cross-sectional area Bxgm, a blood flow rate Bxls, and a dialysis access length Btxc;

[0061] The second collection module in the information collection module is used to collect historical blood data and real-time blood data of dialysis patients.

[0062] The first blood flow coefficient Alx is calculated as follows:

[0063]

[0064] Wherein, Adjm is the arterial diameter, Ajmz is the venous diameter, Axls is the blood flow velocity, bzls is the preset standard blood flow velocity normal threshold, Axgm is the blood vessel cross-sectional area, w1, w2 and w3 are all weight values, and w1, w2 and w3 are not 0 and 1, A is a correction constant, and the values ​​of w1, w2, w3 and A are adjusted and set by the user.

[0065] Preferably, the second blood flow coefficient Blx is calculated as follows:

[0066]

[0067] Wherein, z1, z2 and z3 represent the proportional coefficients of the second blood vessel cross-sectional area Bxgm, blood flow velocity Bxls and dialysis pathway length Btxc, respectively.

[0068] In this embodiment, all vascular information of the dialysis patient is extracted from the patient's historical medical records and real-time ultrasound examination, and the first vascular access data set and the second vascular access data set are established to improve the comparability and credibility of the data. The comprehensive data makes the results of calculating the first blood flow coefficient Alx and the second blood flow coefficient Blx more accurate and reliable; at the same time, calculating the first blood flow coefficient Alx provides a basis for judging the patency and stability of the vascular access, and calculating the second blood flow coefficient Blx helps monitor the patient's vascular status and blood flow during the dialysis process.

[0069] Example 3

[0070] Please refer to Figure 1 The evaluation and early warning module generates corresponding evaluation results by comparing and evaluating the changes between the first blood flow coefficient Alx and the second blood flow coefficient Blx. The specific evaluation scheme is as follows:

[0071] When Agyl>Blx, it means that the blood flow velocity of the current dialysis patient has become low, the blood flow has decreased, the vascular wall and vascular elasticity are abnormal, and there is a risk of vascular blockage. The first assessment result is generated and an early warning instruction is sent to the outside. The patient cannot undergo dialysis immediately;

[0072] When Agyl=Blx, it means that the blood flow velocity and blood flow of the current dialysis patient have not changed, and the vascular wall and vascular elasticity are normal. The second evaluation result is generated and an upload instruction is issued to perform a secondary analysis of the patient's blood data;

[0073] When Agyl<Blx, it means that blood fluidity is enhanced, blood flow is increased, blood vessel wall and blood vessel elasticity are normal, and there is no risk of blood vessel blockage. The third assessment result is generated and an upload instruction is issued, indicating that the patient will undergo dialysis directly.

[0074] In this embodiment, corresponding evaluation results are generated based on the comparative evaluation results, which are divided into a first evaluation result, a second evaluation result and a third evaluation result, which helps to timely understand whether the patient's vascular condition can be dialyzed normally; when the first blood flow coefficient Alx is greater than the second blood flow coefficient Blx, it means that the vascular self-regulation function of the dialysis patient is poor, and the first evaluation result is generated and an early warning instruction is sent to the outside to promptly notify medical staff of the abnormal condition of the patient's vascular state and take corresponding measures to avoid the occurrence of serious problems; when the first blood flow coefficient Alx is equal to the second blood flow coefficient Blx, it means that the current vascular state of the dialysis patient is generally the vascular self-regulation function, and the second evaluation result is generated and an upload instruction is issued to upload the information to the blood data acquisition module for secondary evaluation. When the first blood flow coefficient Alx is less than the second blood flow coefficient Blx, it means that the blood fluidity is enhanced, and the dialysis patient has no dialysis risk and can be directly dialyzed.

[0075] Example 4

[0076] Preferably, the second acquisition unit in the first data calculation module collects historical blood data of dialysis patients through historical medical records of dialysis patients, including historical urea nitrogen concentration Ansd and average dialysis time Tsc; and collects real-time carbon C, oxygen O, nitrogen N, hydrogen H and distribution volume Frj of urea nitrogen concentration in real-time blood data of dialysis patients through dialysis monitoring instruments.

[0077] Preferably, the second data calculation module is used to perform dimensionless processing based on carbon C, oxygen O, nitrogen N and hydrogen H, and then perform correlation calculation to obtain the real-time blood concentration state coefficient Nsd:

[0078] The real-time blood concentration state coefficient Nsd is obtained by the following formula:

[0079]

[0080] In the formula, C1, O1, N1 and H1 represent the reference values ​​of the contents of carbon, oxygen, nitrogen and hydrogen elements respectively, k represents the proportionality coefficient, and 0<k<1, and the value of k is adjusted and set by the user.

[0081] Preferably, the second data calculation module calculates and obtains the real-time dialysis effect coefficient Txs by the following formula:

[0082]

[0083] In the formula, Frj represents the distribution volume of urea nitrogen concentration, Tsc represents the average dialysis time, Ansd represents the historical urea nitrogen concentration, q1, q2, q3 and q4 are respectively the ratio values ​​of the historical urea nitrogen concentration Ansd, the urea nitrogen concentration Nsd, the distribution volume Frj of urea nitrogen concentration and the average dialysis time Tsc, and the specific values ​​are adjusted and set by the user, and ln10 represents the logarithmic operation with the natural number 10 as the base.

[0084] In this embodiment, the historical blood data and real-time blood data of the dialysis patient are collected through the historical medical records of the dialysis patient and the dialysis monitoring machine, which provides the necessary data basis for subsequent data processing and analysis; at the same time, by calculating the real-time blood concentration state coefficient Nsd and the real-time dialysis effect coefficient Txs, it is helpful to monitor the patient's blood quality and metabolic state, evaluate the patient's blood state and dialysis effect, evaluate the patient's urea nitrogen clearance effect during dialysis, and help medical staff understand the effect of dialysis treatment and make corresponding adjustments.

[0085] Example 5

[0086] Preferably, the remote monitoring and evaluation module is used to evaluate and generate corresponding results through a preset ratio threshold value P and a real-time dialysis effect coefficient Txs: when the real-time dialysis effect coefficient Txs ≥ the preset ratio threshold value P, it indicates that the current patient's dialysis effect is normal, the dialysis clearance rate is high, and dialysis continues;

[0087] When the real-time dialysis effect coefficient Txs is less than the preset ratio threshold P, it means that the current dialysis effect of the patient is abnormal, the dialysis clearance rate is low, and the dialysis plan should be adjusted.

[0088] In this embodiment, the normality or abnormality of the patient's dialysis effect is judged based on the comparison between the real-time dialysis effect coefficient Txs and the preset ratio threshold value P, which provides a convenient remote monitoring method for medical staff and once again confirms whether it is necessary for the dialysis patient to continue dialysis at the moment; the first dialysis report records the patient's vascular information and blood data, reflecting the effect of continued dialysis treatment, so that medical staff can confirm the patient's stable state during the dialysis process; the second dialysis report records the patient's vascular information and blood data, points out the abnormal situation where dialysis treatment cannot be performed, and facilitates medical staff to adjust the dialysis plan in time to improve the patient's treatment effect; medical staff can check and understand the patient's dialysis condition at any time by remotely viewing the information provided in the report, adjust the dialysis plan to improve the treatment effect, and thus better manage the health status of dialysis patients.

[0089] Example 6

[0090] Please refer to Figure 2A vascular access monitoring method for dialysis patients, applied to a vascular access monitoring system for dialysis patients as claimed in any one of claims 1 to 9, comprising the following steps:

[0091] Step 1: collecting historical medical records and real-time medical records of dialysis patients through an information collection module, including a first collection unit and a second collection unit, wherein the first collection unit extracts and establishes a first vascular access data set according to the historical medical records of the dialysis patient, and then extracts and establishes a second vascular access data set according to the real-time medical records;

[0092] Step 2: After dimensionless processing of the data in the first vascular access data set and the second vascular access data set in the first acquisition unit by the first data calculation module, a first blood flow coefficient Alx and a second blood flow coefficient Blx are obtained by correlation calculation;

[0093] Step 3: Evaluate the first blood flow coefficient Alx and the second blood flow coefficient Blx through the evaluation and early warning module, and generate a first evaluation result, a second evaluation result and a third evaluation result respectively. When the patient is in the state of the first evaluation result, he cannot be directly healed. When the patient is in the state of the third evaluation result, he can be directly healed. When the patient is in the state of the second evaluation result, the historical blood data of the hemodialysis patient and the real-time blood data of the hemodialysis patient need to be input into the second data calculation module for reanalysis.

[0094] Step 4: The historical blood data of the dialysis patient and the real-time blood data of the dialysis patient are integrated and calculated by the second data calculation module to generate a real-time dialysis effect coefficient Txs;

[0095] Step 5: Evaluate the preset ratio threshold value P and the dialysis effect coefficient Txs through the remote monitoring and evaluation module, and generate the first dialysis report and the second dialysis report respectively, and adjust the dialysis plan according to the first dialysis report and the second dialysis report while referring to all the patient information to determine whether the patient can undergo dialysis.

[0096] Through steps one to three, the patient's historical medical information and real-time vascular access conditions are fully recorded, providing data support for the system's subsequent analysis and monitoring. By calculating the second blood flow coefficient Blx and evaluating it with the first blood flow coefficient Alx, vascular access problems of dialysis patients can be discovered in a timely manner, and an evaluation report can be generated. According to the evaluation results, early warning instructions can be sent to the outside or a secondary evaluation can be conducted, prompting medical staff to take corresponding measures to prevent the occurrence of complications related to vascular access.

[0097] Through step 4, the historical and real-time blood data of dialysis patients are collected, the real-time dialysis effect coefficient Txs of dialysis patients is calculated, and the effect of dialysis treatment is evaluated again;

[0098] Through step five, the dialysis effect coefficient Txs is evaluated with the preset ratio threshold P, and a dialysis report is generated. The medical staff judges the overall condition of the patient based on the dialysis report and arranges the patient for dialysis or adjusts the current dialysis plan. Whether arranging the patient for dialysis or adjusting the plan, the medical staff directly refers to the generated evaluation information and dialysis effect report without having to conduct examinations or review the patient's medical records, making the treatment work of the medical staff more convenient and quick.

[0099] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vascular access monitoring system for dialysis patients, characterized in that: It includes an information collection module, a first data calculation module, an evaluation and early warning module, a second data calculation module and a remote monitoring and evaluation module; The information acquisition module is used to collect historical medical records and real-time medical records of dialysis patients, and includes a first acquisition unit and a second acquisition unit. The first acquisition unit extracts first vascular access information of the dialysis patient according to the historical medical records of the dialysis patient and establishes a first vascular access data set, and then extracts second vascular access information according to the real-time medical records and establishes a second vascular access data set; The first data calculation module is used to perform dimensionless processing on the data in the first vascular access data set and the second vascular access data set in the first acquisition unit, and then perform correlation calculation to obtain the first blood flow coefficient Alx and the second blood flow coefficient Blx; The evaluation and early warning module is used to evaluate the first blood flow coefficient Alx and the second blood flow coefficient Blx, and generate a first evaluation result, a second evaluation result and a third evaluation result respectively. When the patient is in the state of the first evaluation result, he cannot be directly healed. When the patient is in the state of the third evaluation result, he is directly healed. When the patient is in the state of the second evaluation result, the hemodialysis patient's historical blood data and the hemodialysis patient's real-time blood data need to be input into the second data calculation module for reanalysis. The second data calculation module is used to integrate and calculate the historical blood data of the dialysis patient and the real-time blood data of the dialysis patient to generate a real-time dialysis effect coefficient Txs; The remote monitoring and evaluation module is used to evaluate the preset ratio threshold P and the dialysis effect coefficient Txs, and generate a first dialysis report and a second dialysis report respectively, and adjust the dialysis plan according to the first dialysis report and the second dialysis report while referring to all the patient information to determine whether the patient can undergo dialysis.

2. A vascular access monitoring system for dialysis patients according to claim 1, characterized in that: The first vascular access dataset is obtained by extracting ultrasound examination reports in historical medical records of dialysis patients, including historical blood flow velocity Axls, vascular cross-sectional area Axgm, arterial diameter Adjm and venous diameter Ajmz; The second vascular access information of the first acquisition unit is collected in real time through ultrasound examination during the treatment process. Since the blood vessels will also change in real time due to the continuous changes in physiological and environmental factors, a second vascular access data set is established. The second vascular access data set includes a second blood vessel cross-sectional area Bxgm, a blood flow rate Bxls, and a dialysis access length Btxc; The second collection module in the information collection module is used to collect historical blood data and real-time blood data of dialysis patients.

3. A vascular access monitoring system for dialysis patients according to claim 1, characterized in that: The first blood flow coefficient Alx is calculated as follows: Wherein, Adjm is the arterial diameter, Ajmz is the venous diameter, Axls is the blood flow velocity, bzls is the preset standard blood flow velocity normal threshold, Axgm is the blood vessel cross-sectional area, w1, w2 and w3 are all weight values, and w1, w2 and w3 are not 0 and 1, A is a correction constant, and the values ​​of w1, w2, w3 and A are adjusted and set by the user.

4. A vascular access monitoring system for dialysis patients according to claim 1, characterized in that: The second blood flow coefficient Blx is calculated as follows; Wherein, z1, z2 and z3 represent the proportional coefficients of the second blood vessel cross-sectional area Bxgm, blood flow velocity Bxls and dialysis pathway length Btxc, respectively.

5. A vascular access monitoring system for dialysis patients according to claim 1, characterized in that: The evaluation and early warning module generates corresponding evaluation results by comparing and evaluating the changes between the first blood flow coefficient Alx and the second blood flow coefficient Blx. The specific evaluation scheme is as follows: When Agyl>Blx, it means that the blood flow velocity of the current dialysis patient has become low, the blood flow has decreased, the vascular wall and vascular elasticity are abnormal, and there is a risk of vascular blockage. The first assessment result is generated and an early warning instruction is sent to the outside. The patient cannot undergo dialysis immediately; When Agyl=Blx, it means that the blood flow velocity and blood flow of the current dialysis patient have not changed, and the vascular wall and vascular elasticity are normal. The second evaluation result is generated and an upload instruction is issued to perform a secondary analysis of the patient's blood data; When Agyl<Blx, it means that blood fluidity is enhanced, blood flow is increased, blood vessel wall and blood vessel elasticity are normal, there is no risk of blood vessel blockage, and a third assessment result is generated and an upload instruction is issued, indicating that the patient is suitable for direct dialysis.

6. A vascular access monitoring system for dialysis patients according to claim 1, characterized in that: The second acquisition unit in the first data calculation module collects the historical blood data of the dialysis patient through the historical medical records of the dialysis patient, including the historical urea nitrogen concentration Ansd and the average dialysis time Tsc; and collects the real-time carbon C, oxygen O, nitrogen N, hydrogen H and the distribution volume Frj of the urea nitrogen concentration in the real-time blood data of the dialysis patient through the dialysis monitoring instrument.

7. A vascular access monitoring system for dialysis patients according to claim 1, characterized in that: The second data calculation module is used to perform dimensionless processing based on carbon C, oxygen O, nitrogen N and hydrogen H, and then perform correlation calculation to obtain the real-time blood concentration state coefficient Nsd: The real-time blood concentration state coefficient Nsd is obtained by the following formula: In the formula, C1, O1, N1 and H1 represent the reference values ​​of the contents of carbon, oxygen, nitrogen and hydrogen elements respectively, k represents the proportionality coefficient, and 0<k<1, and the value of k is adjusted and set by the user.

8. A vascular access monitoring system for dialysis patients according to claim 1, characterized in that: The second data calculation module calculates and obtains the real-time dialysis effect coefficient Txs by the following formula; In the formula, Frj represents the distribution volume of urea nitrogen concentration, Tsc represents the average dialysis time, Ansd represents the historical urea nitrogen concentration, q1, q2, q3 and q4 are respectively the ratio values ​​of the historical urea nitrogen concentration Ansd, the urea nitrogen concentration Nsd, the distribution volume Frj of urea nitrogen concentration and the average dialysis time Tsc, and the specific values ​​are adjusted and set by the user, and ln10 represents the logarithmic operation with the natural number 10 as the base.

9. A vascular access monitoring system for dialysis patients according to claim 7, characterized in that: The remote monitoring and evaluation module is used to evaluate and generate corresponding results through the preset ratio threshold P and the real-time dialysis effect coefficient Txs: When the real-time dialysis effect coefficient Txs ≥ the preset ratio threshold P, it means that the current patient's dialysis effect is normal, the dialysis clearance rate is high, and dialysis continues; When the real-time dialysis effect coefficient Txs is less than the preset ratio threshold P, it means that the current dialysis effect of the patient is abnormal, the dialysis clearance rate is low, and the dialysis plan should be adjusted.

10. A vascular access monitoring method for dialysis patients, applied to a vascular access monitoring system for dialysis patients according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: collecting historical medical records and real-time medical records of dialysis patients through an information collection module, including a first collection unit and a second collection unit, wherein the first collection unit extracts and establishes a first vascular access data set according to the historical medical records of the dialysis patient, and then extracts and establishes a second vascular access data set according to the real-time medical records; Step 2: After dimensionless processing of the data in the first vascular access data set and the second vascular access data set in the first acquisition unit by the first data calculation module, the first blood flow coefficient Alx and the second blood flow coefficient Blx are calculated in association with each other; Step 3: Evaluate the first blood flow coefficient Alx and the second blood flow coefficient Blx through the evaluation and early warning module, and generate a first evaluation result, a second evaluation result and a third evaluation result respectively. When the patient is in the state of the first evaluation result, he cannot be directly healed. When the patient is in the state of the third evaluation result, he can be directly healed. When the patient is in the state of the second evaluation result, the historical blood data of the hemodialysis patient and the real-time blood data of the hemodialysis patient need to be input into the second data calculation module for reanalysis. Step 4: The historical blood data of the dialysis patient and the real-time blood data of the dialysis patient are integrated and calculated by the second data calculation module to generate a real-time dialysis effect coefficient Txs; Step 5: Evaluate the preset ratio threshold value P and the dialysis effect coefficient Txs through the remote monitoring and evaluation module, and generate the first dialysis report and the second dialysis report respectively, and adjust the dialysis plan according to the first dialysis report and the second dialysis report while referring to all the patient information to determine whether the patient can undergo dialysis.

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