CN110124138B - Dry weight control system in hemodialysis process - Google Patents
Dry weight control system in hemodialysis process Download PDFInfo
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- CN110124138B CN110124138B CN201910318743.6A CN201910318743A CN110124138B CN 110124138 B CN110124138 B CN 110124138B CN 201910318743 A CN201910318743 A CN 201910318743A CN 110124138 B CN110124138 B CN 110124138B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1601—Control or regulation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H10/00—ICT specially adapted for the handling or processing of patient-related medical or healthcare data
- G16H10/60—ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0413—Blood
Abstract
The invention relates to the field of hemodialysis, in particular to a dry weight control system in a hemodialysis process. It includes: a patient database for recording historical dialysis data of a patient; the client system is used for recording and uploading the weight of the patient every day; the back-end control system is connected with the client system and the patient database and is used for receiving the data uploaded by the client system and transmitting the data to the patient database for storage; determining the latest dry weight of the patient according to the historical dialysis data and the historical weight data of the patient, and determining the hematocrit threshold according to the historical dialysis data; and the front-end monitoring system is connected with the rear-end control system and is used for acquiring the latest dry weight data and the red blood cell volume threshold value and monitoring ultrafiltration of the patient in the hemodialysis process according to the dry weight and the red blood cell volume threshold value. The system analyzes based on dialysis data and body parameters of the patient, and can well realize the function of online control of the hemodialysis process of the patient.
Description
Technical Field
The invention relates to the field of hemodialysis, in particular to a dry weight control system in a hemodialysis process.
Background
Hemodialysis (HD) is one of the alternative treatments for the kidney of patients with acute and chronic renal failure. The method comprises the steps of draining blood in vivo to the outside of the body, enabling the blood and electrolyte solution (dialysate) with similar body concentration to be inside and outside one hollow fiber through a dialyzer consisting of a plurality of hollow fibers, and carrying out substance exchange through dispersion, ultrafiltration, adsorption and convection principles, so as to remove metabolic waste in the body and maintain the balance of electrolyte and acid and alkali; at the same time, the excess water in the body is removed, and the whole process of purified blood reinfusion is called hemodialysis.
The full dialysis can effectively reduce the occurrence of complications such as cardiovascular and cerebrovascular diseases, mineral metabolism disorder, anemia and renal osteopathia, improve the long-term prognosis of patients, ensure the daily optimal life and work quality and reduce the death rate of the patients.
The purpose of dialysis is two, one is to remove toxins from the body and the other to remove excess water from the body. If blood flow and ultrafiltration are increased, the adequacy of blood penetration can theoretically be increased.
The excess water in the organism can be removed to keep the capacity balance and achieve the ideal weight, namely the dry weight. In the prior art, doctors generally estimate dry weight according to clinical manifestations of dialysis patients, and generally judge whether the dialysis patients have pulmonary damp, edema, weight change, dyspnea, and the like. Symptoms and signs of fluid overload include edema (eyelids, lower limbs, and body visible in severe cases), pleural effusion, jugular vein anger, hepatomegaly, etc.; while low volume conditions are manifested by thirst, dry skin mucosa, hypo-elasticity, orbital depressions, etc. If the patient does not have the above-mentioned performance, the patient is considered to be in a state of fluid balance. The method is greatly influenced by subjective factors of evaluators and has no specific signs. It is noted that edema is only manifested in patients, particularly peritoneal dialysis patients, when the water load is significantly increased.
In addition to the basic methods of clinical presentation described above, the assessment of whether dry body weight is achieved is often combined with cardiothoracic ratio (less than 0.5), echocardiogram (heart size change).
Based on the above dry weight assessment, a common simple method is to roughly regard the body weight after the last normal dialysis as the dry weight, regard the dehydration amount at the next dialysis as the body weight before the next dialysis minus the dry weight, or perform a simple correction based on this.
The method is a common clinical evaluation method, the sensitivity is poor, the influences of diseases, diet, nutritional conditions and the like of patients are not considered, the coordination degree of the patients is difficult to guarantee, and further, the difficulty and uncertainty are increased for determining the dry weight.
Disclosure of Invention
In order to overcome at least one defect (deficiency) of the prior art, the invention provides a dry weight control system in a hemodialysis process, which realizes intelligent control of dry weight in an online monitoring mode.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a system for dry weight control during hemodialysis, comprising:
a patient database for recording historical dialysis data of a patient;
the client system is used for recording and uploading the weight of the patient every day;
the back-end control system is connected with the client system and the patient database and is used for receiving the data uploaded by the client system and transmitting the data to the patient database for storage; determining the latest dry weight of the patient according to the historical dialysis data and the historical weight data of the patient, and determining the hematocrit threshold according to the historical dialysis data;
and the front-end monitoring system is connected with the rear-end control system and is used for acquiring the latest dry weight data and the red blood cell volume threshold value and monitoring ultrafiltration of the patient in the hemodialysis process according to the dry weight and the red blood cell volume threshold value.
In the scheme, the back-end control system also determines the daily water intake of the patient after the dialysis is finished and before the next dialysis is started according to the historical dialysis data and the physical information of the patient and transmits the daily water intake to the client system;
the client system is also used for prompting the daily water intake of the patient and recording and uploading the actual daily water intake of the patient to the back-end control system.
In the scheme, the back-end control system is further used for determining the optimal weight gain range of the patient from the completion of the current dialysis to the start of the next dialysis according to historical dialysis data and transmitting the optimal weight gain range to the client system;
the client system is also used for prompting the current optimal weight gain range of the patient, judging whether the current optimal weight gain range of the patient is exceeded or not according to the input weight information, and sending alarm information if the current optimal weight gain range of the patient is exceeded. In the above scheme, the specific way in which the back-end control system is used to determine the latest dry weight of the patient according to the historical dialysis data of the patient and the weight data entered daily is as follows:
taking weight data of a patient before and after the last dialysis and an uncomfortable symptom record in the last dialysis process;
if no uncomfortable symptoms exist, comparing whether the weight difference value before and after the last dialysis is within the optimal weight gain range calculated currently, if so, calculating the latest dry weight according to the mode of calculating the dry weight last time, and if not, calculating a preliminary dry weight according to the mode of calculating the dry weight last time, and subtracting or adding a dry weight coefficient according to whether the preliminary dry weight is lower than or higher than the optimal weight gain range to obtain the latest dry weight;
if the uncomfortable symptom of excessive or insufficient dehydration exists, comparing whether the weight difference value before and after the last dialysis is in the current calculated optimal weight gain range, if so, calculating the latest dry weight by adopting the dry weight calculation mode of the dialysis process without uncomfortable symptoms, otherwise, calculating a preliminary dry weight by adopting the latest dialysis dry weight calculation mode without uncomfortable symptoms, and then subtracting or adding a dry weight coefficient according to the weight gain range lower or higher than the optimal weight gain range to obtain the latest dry weight.
In the above scheme, the specific way for the back-end control system to determine the hematocrit threshold according to the historical dialysis data is as follows:
and extracting the hematocrit threshold corresponding to the dialysis process in which the patient does not have discomfort symptoms in the last time as the latest hematocrit threshold.
In the scheme, the latest dry body weight calculated is used as an ultrafiltration target when the front-end monitoring system carries out ultrafiltration process monitoring, and the ultrafiltration volume is adjusted or ultrafiltration is suspended according to comparison between the real-time value of the packed red blood cell volume and the packed red blood cell volume threshold value in the monitoring process.
In the above scheme, the specific manner of adjusting the ultrafiltration volume or suspending ultrafiltration according to the comparison between the real-time hematocrit value and the hematocrit threshold value in the monitoring process is as follows:
when the real-time detected hematocrit value reaches the set hematocrit threshold, the ultrafiltration volume is reduced until the hematocrit is below the threshold.
In the scheme, the monitoring process is summarized and the blood pressure of the patient is monitored, and when the blood pressure of the patient is monitored to deviate from a normal range in real time, the ultrafiltration volume is reduced or the ultrafiltration is suspended.
In the scheme, the system also comprises an emergency button which is connected with the front-end monitoring system, and when the patient has uncomfortable symptoms and presses the button, the front-end monitoring system receives a button signal, reduces the ultrafiltration volume or suspends ultrafiltration and sends out an alarm signal.
In the above scheme, the front-end monitoring system sets an ultrafiltration volume adjusting stage related to time, the ultrafiltration volume reduction is performed according to the ultrafiltration volume adjusting stage, the ultrafiltration volume is maintained when the real-time value of the packed red blood cell volume in a certain time related to the adjusting stage is reduced after the ultrafiltration volume is adjusted, and the ultrafiltration volume adjustment is continued to the next stage when the real-time value of the packed red blood cell volume in a certain time related to the adjusting stage is not changed or continuously rises after the ultrafiltration volume is adjusted.
Compared with the prior art, the invention has the following advantages and effective effects:
the system of the invention provides a patient database to record the historical dialysis data and the historical weight information of the patient for each module to call, and the client system is used as a front-end using system of the patient and is used for recording the daily weight information of the patient and uploading the daily weight information to the back-end control system; the back end control system determines the latest dry weight and the latest hematocrit threshold of a patient according to data provided by a patient database before the patient carries out dialysis and is used as a monitoring parameter of the front end monitoring system in the dialysis process of the patient, the whole system combines the daily data of the patient, the back end data processing and the front end monitoring process into a whole to comprehensively realize the online management of the dialysis data and the physical parameters of the dialysis patient, the system applies the historical data of the patient to the dry weight control of the front end dialysis process, the physical conditions of all patients are different due to the particularity of hemodialysis, the system analyzes based on the dialysis data and the physical parameters of the patient, and the online control function of the hemodialysis process of the patient can be well realized.
Drawings
FIG. 1 is a block diagram of a dry weight control system for hemodialysis in accordance with the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
In the description of the present invention, it is to be understood that, furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a defined feature of "first", "second", may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solution of the present invention is further described with reference to the drawings and the embodiments.
Example 1
As shown in fig. 1, the dry weight control system in hemodialysis of the present invention specifically comprises:
a patient database 101 for recording historical dialysis data and weight information of a patient;
a client system 102 for daily entry and uploading of patient weight; the dialysis patients need to strictly control water intake in daily life, strictly control weight increase during dialysis, and maintain a proper weight as much as possible to determine the adequacy of dialysis and prolong life. By using the client system, the patient can record the self weight information every day and upload the weight information to the back-end patient database for storage, so as to form the dialysis data of the patient.
The back-end control system 103 is connected with the client system 102 and the patient database 101 and is used for receiving the data uploaded by the client system 102 and transmitting the data to the patient database 101 for storage; determining the latest dry weight of the patient according to the historical dialysis data and the historical weight data of the patient, and determining the hematocrit threshold according to the historical dialysis data; the back-end control system utilizes the data of the patient to determine the dry weight and the hematocrit threshold value, and has more pertinence and accuracy.
And the front-end monitoring system 104 is connected with the back-end control system 103 and is used for acquiring the latest dry weight data and the red blood cell volume threshold value and monitoring ultrafiltration of the patient in the hemodialysis process according to the dry weight and the red blood cell volume threshold value. The front-end monitoring system 104 monitors by using the parameters provided by the back-end control system 103, and realizes the intelligent control of the dry weight in an online monitoring mode.
In the implementation process, the back-end control system 103 also determines the daily intake of water of the patient after the completion of the dialysis and before the start of the next dialysis according to the historical dialysis data and the physical information of the patient and transmits the daily intake to the client system; the dehydration amount in the hemodialysis process has a great relationship with the weight increase of a patient before dialysis from the last time, the weight increase of a dialysis patient needs to be strictly controlled between two times of dialysis, the water intake is strictly controlled, the back-end control system 103 can obtain weight information, the dehydration amount and the water intake per day before and after a plurality of times of dialysis according to the previous historical dialysis data, and further the urine discharge amount of the patient uploaded by a client system can be used for determining the water intake per day before the start of dialysis at the next time. Of course, the daily water intake may also be set by the back-end control system 103 based on a clinical assessment by a physician, and may also be modified based on the daily water intake determined by the back-end control system 103.
Client system 102 is also used to prompt the patient for daily water intake and to enter and upload the patient's actual daily water intake to the back-end control system. The client system 102 can prompt the daily water intake of the patient, can well enable the patient to strictly control the daily water intake, and uploads the recorded daily water intake to the back end for storage and analysis and application by the back end control system 103.
The back-end control system 103 is further configured to determine an optimal weight gain range of the patient from completion of the current dialysis to start of the next dialysis according to the historical dialysis data, and transmit the optimal weight gain range to the client system;
the specific way in which the back-end control system 103 determines the latest dry weight of the patient from the historical dialysis data of the patient and the weight data entered daily is:
taking weight data of a patient before and after the last dialysis and an uncomfortable symptom record in the last dialysis process;
if no uncomfortable symptoms exist, comparing whether the weight difference value before and after the last dialysis is within the optimal weight gain range calculated currently, if so, calculating the latest dry weight according to the mode of calculating the dry weight last time, and if not, calculating a preliminary dry weight according to the mode of calculating the dry weight last time, and subtracting or adding a dry weight coefficient according to whether the preliminary dry weight is lower than or higher than the optimal weight gain range to obtain the latest dry weight;
if the uncomfortable symptom of excessive or insufficient dehydration exists, comparing whether the weight difference value before and after the last dialysis is in the current calculated optimal weight gain range, if so, calculating the latest dry weight by adopting the dry weight calculation mode of the dialysis process without uncomfortable symptoms, otherwise, calculating a preliminary dry weight by adopting the latest dialysis dry weight calculation mode without uncomfortable symptoms, and then subtracting or adding a dry weight coefficient according to the weight gain range lower or higher than the optimal weight gain range to obtain the latest dry weight.
The client system 102 is further configured to prompt the current optimal weight gain range of the patient, determine whether the current optimal weight gain range of the patient is exceeded according to the entered weight information, and send an alarm message if the current optimal weight gain range of the patient is exceeded.
The specific way for the back-end control system 103 to determine the hematocrit threshold according to the historical dialysis data is as follows:
and extracting the hematocrit threshold corresponding to the dialysis process in which the patient does not have discomfort symptoms in the last time as the latest hematocrit threshold.
In a specific implementation process, when the front-end monitoring system 104 performs the ultrafiltration process monitoring, the latest calculated dry body weight is used as an ultrafiltration target, and the ultrafiltration volume is adjusted or the ultrafiltration is suspended in the monitoring process according to the comparison between the real-time hematocrit value and the hematocrit threshold value.
The specific mode of adjusting the ultrafiltration volume or suspending ultrafiltration according to the comparison between the real-time hematocrit value and the hematocrit threshold value in the monitoring process is as follows:
when the real-time detected hematocrit value reaches the set hematocrit threshold, the ultrafiltration volume is reduced until the hematocrit is below the threshold.
In the specific implementation process, the blood pressure of the patient is monitored in the monitoring process, and when the blood pressure of the patient is monitored to deviate from a normal range in real time, the ultrafiltration volume is reduced or the ultrafiltration is suspended. Theoretically, the weight of a patient with less blood volume loss during dialysis is higher than the true dry weight, and the blood volume change is inversely proportional to the hematocrit. When the ultrafiltration of the dialysis process is monitored by setting the hematocrit threshold, when the real-time monitored hematocrit value is increased, the blood volume is reduced, the real weight of the patient does not reach the level of the dry weight, the dialysis process can be continuously monitored, when the real-time value of the hematocrit is increased to the hematocrit threshold, the blood volume is reduced to a proper level, the real weight of the patient is closer to the dry weight, and the ultrafiltration process can be continuously observed by reducing the ultrafiltration amount. In the actual operation process, an ultrafiltration volume adjusting stage related to time is needed to be arranged, ultrafiltration volume is reduced according to the ultrafiltration volume adjusting stage, the ultrafiltration volume is kept when the real-time value of the packed red blood cell volume in a certain time related to the adjusting stage is reduced after ultrafiltration volume adjustment, and ultrafiltration volume adjustment is continued to the next stage when the real-time value of the packed red blood cell volume in the certain time related to the adjusting stage is not changed or continuously rises after ultrafiltration volume adjustment. That is, the amount of ultrafiltration is adjusted in relation to time, for example, every n seconds, the amount of ultrafiltration is decreased by a certain amount, when the amount of ultrafiltration is decreased and a decrease in hematocrit is detected after a time interval of n seconds, the current amount of ultrafiltration can be maintained to continue dialysis, when the amount of ultrafiltration is decreased and no decrease or continuous increase in hematocrit is detected after a time interval of n seconds, the amount of ultrafiltration is decreased to the next level, and the amount of ultrafiltration is adjusted such that the number of times of ultrafiltration is not more than three and a warning message is issued and ultrafiltration is suspended more than three times.
In a specific implementation, the system further comprises an emergency button 105, which is connected to the front-end monitoring system 104, and when the patient has an uncomfortable symptom and presses the button, the front-end monitoring system 104 receives the button signal and reduces the ultrafiltration volume or suspends ultrafiltration and sends an alarm signal. This method takes into account the patient's discomfort during dialysis, and when the patient feels discomfort, such as spasm, mild headache, nausea, etc., the amount of ultrafiltration can be reduced or the ultrafiltration can be suspended by pressing a button. Similarly, in a specific operation, the doctor can preset whether to execute the ultrafiltration volume reduction or pause the ultrafiltration when pressing the button in the front-end control system 104 according to the historical dialysis data of the patient.
In addition, to improve the safety and intelligence of the monitoring, the front-end control system 104 also monitors the blood pressure of the patient, and reduces the ultrafiltration volume or suspends the ultrafiltration when the blood pressure of the patient is monitored to deviate from a normal range in real time. In a specific operation, the doctor can preset whether to execute ultrafiltration reduction or pause ultrafiltration when pressing the button in the front-end control system 104 according to the historical dialysis data of the patient.
The same or similar reference numerals correspond to the same or similar parts;
the positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent;
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. A system for dry weight control during hemodialysis, comprising:
a patient database for recording historical dialysis data of a patient;
the client system is used for recording and uploading the weight of the patient every day;
the back-end control system is connected with the client system and the patient database and is used for receiving the data uploaded by the client system and transmitting the data to the patient database for storage; and determining the latest dry weight of the patient according to the historical dialysis data and the historical weight data of the patient, wherein the specific mode is as follows:
taking weight data of a patient before and after the last dialysis and an uncomfortable symptom record in the last dialysis process;
if no uncomfortable symptoms exist, comparing whether the weight difference value before and after the last dialysis is within the current calculated optimal weight gain range, if yes, calculating the latest dry weight according to the latest dry weight calculation mode, and if not, calculating a preliminary dry weight according to the latest dry weight calculation mode, and subtracting or adding a dry weight coefficient according to whether the preliminary dry weight is lower than or higher than the optimal weight gain range to obtain the latest dry weight;
if the uncomfortable symptoms of excessive dehydration or too little dehydration exist, comparing whether the weight difference value before and after the last dialysis is in the currently calculated optimal weight gain range, if so, calculating the latest dry weight by adopting the dry weight calculation mode of the dialysis process without uncomfortable symptoms, and if not, calculating a preliminary dry weight by adopting the latest in-dialysis dry weight calculation mode without uncomfortable symptoms, and then subtracting or adding a dry weight coefficient according to the weight gain range lower than or higher than the optimal weight gain range to obtain the latest dry weight;
determining a hematocrit threshold from historical dialysis data;
the back-end control system is also used for determining the optimal weight gain range of the patient from the completion of the current dialysis to the beginning of the next dialysis according to the historical dialysis data and transmitting the optimal weight gain range to the client system;
the client system is also used for prompting the current optimal weight gain range of the patient, judging whether the current optimal weight gain range of the patient is exceeded or not according to the input weight information, and if so, sending alarm information;
and the front-end monitoring system is connected with the rear-end control system and is used for acquiring the latest dry weight data and the red blood cell volume threshold value and monitoring ultrafiltration of the patient in the hemodialysis process according to the dry weight and the red blood cell volume threshold value.
2. The system of claim 1, wherein the back-end control system further determines the daily water intake of the patient from the completion of the dialysis session to the start of the next dialysis session based on historical dialysis data and the patient's physical information and transmits the water intake to the client system;
the client system is also used for prompting the daily water intake of the patient, and recording and uploading the actual daily water intake of the patient to the back-end control system.
3. The system of claim 1, wherein the back-end control system determines the hematocrit threshold from the historical dialysis data by:
and extracting the hematocrit threshold value corresponding to the dialysis process without uncomfortable symptoms of the patient at the last time as the latest hematocrit threshold value.
4. The system for controlling dry body weight during hemodialysis according to any one of claims 1 to 3, wherein the front-end monitoring system performs ultrafiltration process monitoring by using the latest calculated dry body weight as an ultrafiltration target, and adjusts the ultrafiltration volume or suspends ultrafiltration during the monitoring process according to a comparison between the real-time hematocrit value and the hematocrit threshold value.
5. The system of claim 4, wherein the monitoring process adjusts the amount of ultrafiltration or suspends ultrafiltration based on a comparison of the real-time hematocrit value and the hematocrit threshold value by:
when the real-time detected hematocrit value reaches the set hematocrit threshold, the ultrafiltration volume is reduced until the hematocrit is below the threshold.
6. The system of claim 5, wherein the monitoring profile further monitors the blood pressure of the patient, and reduces the amount of ultrafiltration or suspends ultrafiltration when the blood pressure of the patient is monitored in real time as deviating from a normal range.
7. The system of claim 5 or 6, further comprising an emergency button coupled to the front-end monitoring system, wherein the front-end monitoring system receives the button signal and reduces the amount of ultrafiltration or suspends ultrafiltration and sends an alarm signal when the button is pressed by the patient in the event of an uncomfortable condition.
8. The system of claim 5 or 6, wherein the front-end monitoring system comprises a time-dependent ultrafiltration volume control stage, wherein the ultrafiltration volume reduction is performed in accordance with the ultrafiltration volume control stage, wherein the ultrafiltration volume is maintained when the real-time value of the hematocrit decreases for a certain time period associated with the control stage after the ultrafiltration volume adjustment, and wherein the ultrafiltration volume adjustment continues to the next stage when the real-time value of the hematocrit does not change or continues to increase for a certain time period associated with the control stage after the ultrafiltration volume adjustment.
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| CN111790012A (en) * | 2020-05-28 | 2020-10-20 | 上海市奉贤区中心医院 | Portable multimedia monitoring device of dialysis patient based on RFID |
| CN112951419B (en) * | 2020-11-11 | 2021-09-14 | 复旦大学附属华山医院 | Hemodialysis dry weight intelligent assessment device |
| CN113730689A (en) * | 2021-09-08 | 2021-12-03 | 吉林大学 | Weighing-based hemodialysis ultrafiltration volume and ultrafiltration rate real-time monitoring system and method |
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