CN208693297U - Renal replacement therapies Nutrition Evaluation device - Google Patents
Renal replacement therapies Nutrition Evaluation device Download PDFInfo
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- CN208693297U CN208693297U CN201720859483.XU CN201720859483U CN208693297U CN 208693297 U CN208693297 U CN 208693297U CN 201720859483 U CN201720859483 U CN 201720859483U CN 208693297 U CN208693297 U CN 208693297U
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- 230000035764 nutrition Effects 0.000 title claims abstract description 44
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- 238000001514 detection method Methods 0.000 claims abstract description 41
- 238000000502 dialysis Methods 0.000 claims abstract description 31
- 238000004458 analytical method Methods 0.000 claims abstract description 23
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- External Artificial Organs (AREA)
Abstract
A kind of renal replacement therapies Nutrition Evaluation device, including dialyzer, bloodletting tube, blood return tube, blood pump, dialysis fluid container, waste fluid container, dialyzate input pipe, dialyzate efferent duct, dialysate flow pump and waste drains pump.First detection pipe is provided on bloodletting tube, the blood before dialysing imports a first blood testing module；Bypass is provided with second detection pipe in blood return tube, and the blood after dialysing imports a second blood testing module；First blood testing module and the second blood testing module are connect with Nutrition Evaluation analysis module；Nutrition Evaluation analysis module is connected with display.Blood measured data when the application can pass through patients with hemodialysis obtains relevant treatment Nutrition Evaluation result, and calculated result is presented to by doctor and patient by terminal device, to make Nutritional condition of body of the patient for dialysis when obtain in time quickly and effectively accurately assessment, adjustment therapeutic scheme in time, reaches the dialysis treatment effect of anticipated optimal set.
Description
Technical Field
The utility model relates to a medical instrument, especially a kidney replacement therapy nutrition evaluation device.
Background
The incidence of chronic renal insufficiency tends to increase year by year, and is a common complication of chronic diseases such as hypertension, diabetes, cardiovascular diseases and the like, and uremia and renal failure are caused in severe cases. Chronic renal insufficiency is usually treated with renal replacement therapy. Renal replacement therapy is usually performed by extracorporeal hemodialysis to continuously and slowly remove water and solutes from the blood to replace the renal function, thereby minimizing the effect of the change in the concentration and volume of solutes in the blood on the body.
In renal replacement therapy, nutritional problems have been the key to affecting the efficacy of treatment and the quality of life of patients. Both domestic and foreign studies report that patients with maintenance hemodialysis have a relatively high incidence of malnutrition. Malnutrition is one of the complications and major causes of death in dialysis patients. Hemodialysis is the most main alternative treatment mode of end-stage renal patients, the incidence rate of malnutrition of hemodialysis patients is high, and both domestic and foreign researches report that maintenance hemodialysis patients have quite high incidence rate of malnutrition. Malnutrition is thought to be associated with inflammation and cardiovascular disease, and cardiovascular death is the leading cause of death in end-stage renal patients. Malnutrition is one of the complications and major causes of death in dialysis patients. The incidence rate of malnutrition of dialysis patients is as high as 30-50%, the malnutrition is closely related to death and hospitalization event risk increase, the malnutrition accelerates atherosclerosis of the dialysis patients, increases cardiovascular disease risk of the dialysis patients, and increases the mortality rate of the dialysis patients. Therefore, it is an important subject to improve the nutritional status of hemodialysis patients, on the premise that the nutritional status of hemodialysis patients can be accurately evaluated.
The intake of nutrients and measurement of body constitution is a very common method for nutritional assessment in renal replacement therapy by obtaining food intake data that estimates the individual's dietary intake by reviewing and describing the type and amount of all food (including beverages) ingested within 24 hours per panelist. Meal surveys can be conducted by face-to-face, telephone, or automated query methods. Investigators are trained to present heuristic questions to assist individuals in reviewing their diets, asking them for the type of food cooked, brand name, major ingredients mixed, and other major characteristics. In addition, the nutritional status of the patient can be evaluated by skin fold thickness measurement, upper arm circumference measurement, body weight, Body Mass Index (BMI), and other indicators. Another method for nutrition assessment in renal replacement therapy is Subjective Global Assessment (SGA), which is characterized in that the detailed medical history and clinical examination are taken as the basis, and anthropometry and biochemical examination are omitted. The theoretical basis is that changes in body composition are associated with changes in food intake, changes in digestive and absorptive functions, muscle wasting, changes in body functions and activities, and the like. In severe malnutrition, SGA has a better correlation. Yet another method for nutritional assessment in renal replacement therapy is by biochemical indicators, typically serum proteins, insulin-like growth factor-1, serum cholesterol, etc., which when not meeting specified values, indicate malnutrition or severe malnutrition, and insufficient protein and energy intake.
In the existing nutrition evaluation method in kidney replacement therapy, the investigation of the nutrient substance intake method is tedious and time-consuming, the clinical application frequency is low, and the method is not timely. The subjective comprehensive assessment (SGA) method lacks objective standards, the assessment is delayed, and the assessment effect is not obvious when malnutrition occurs in the initial stage. The measurement items in the biochemical index method are inconsistent with the daily blood drawing examination items of the hemodialysis patients, and the analysis items and contents are not comprehensive enough. These conventional nutrition assessment methods often have large deviations after assessment, fail to accurately achieve the desired assessment results, and lack timely adjustment of the patient's physical changes at each dialysis session.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the present invention is to provide a kidney substitution treatment nutrition assessment device to reduce or avoid the aforementioned problems.
In order to solve the technical problem, the utility model provides a kidney replacement therapy nutrition assessment device, which comprises a dialyzer, a blood pumping pipe, a blood returning pipe, a blood pump, a dialysate container, a waste liquid container, a dialysate input pipe, a dialysate output pipe, a dialysate flow pump and a waste liquid pump; wherein blood flows through the blood withdrawal tube into the blood chamber of the dialyzer and through the return tube back to the patient, the flow of the blood circuit being controlled by the blood pump; dialysate is brought from the dialysate container through the dialysate input tube to a dialysate chamber of the dialyzer separated from the blood chamber by a semi-permeable membrane; dialysate flow is controlled by the dialysate flow pump; the used dialysate flowing out of the dialysate chamber is conveyed to the waste liquid container through the dialysate output pipe, and the flow rate of the used dialysate is controlled by the waste liquid pump, wherein the blood drawing pipe bypass is provided with a first detection pipe for drawing the blood of the patient before dialysis into a first blood detection module through the first detection pipe in the first detection pipe; the bypass on the blood returning pipe is provided with a second detection pipe, and the second detection pipe is used for pumping the dialyzed blood of the patient to a second blood detection module; the first blood detection module and the second blood detection module are respectively provided with a sensor for detecting blood parameters; the first blood detection module and the second blood detection module are respectively connected with a nutrition evaluation analysis module through data lines; the nutrition evaluation and analysis module is connected with a display.
Preferably, the nutrition evaluation and analysis module is a single chip microcomputer, a general purpose computer or a server capable of running software computing functions.
Preferably, the nutrition assessment and analysis module has a data input interface, and the data input interface is respectively connected with the blood pump and the dialysate flow pump through data lines.
Preferably, the first blood test module and the second blood test module have the same structure.
The application can obtain the relevant treatment nutrition evaluation result through the blood actual measurement data of the patient during dialysis, and present the calculation result to doctor and patient through terminal equipment, thereby make the patient obtain timely, quick, effective and accurate evaluation to the nutrition status of the body during dialysis, in time adjust the treatment scheme, reach the best dialysis treatment effect of expectation.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is a schematic diagram showing a kidney substitution treatment nutrition evaluation device according to an embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
In the kidney substitution treatment nutrition assessment device according to the present invention as shown in fig. 1, the blood of the patient is extracted for extracorporeal circulation, and the blood flows into the blood chamber 30 of the dialyzer 3 through the blood extraction tube 32 and returns to the patient through the blood return tube 31. The flow of the blood circuit is controlled by a blood pump 33. From the dialysate container 12, the dialysate is brought via the dialysate inlet line 20 to the dialysate compartment 29 of the dialyzer 3, the dialysate compartment 29 being separated from the blood compartment 30 by a semi-permeable membrane, by osmosis, harmful substances in the blood being carried away by the dialysate. Wherein the dialysate flow is controlled by a dialysate flow pump 21. Spent dialysate from the dialysate chamber 29 is delivered to the waste reservoir 13 via a dialysate outlet line 36, the flow of spent dialysate being controlled by a waste pump 34.
Further, a first detection tube 40 is disposed by-pass on the blood drawing tube 32 of the present application for drawing the blood of the patient before dialysis through a first detection tube pump 41 in the first detection tube 40 into a first blood detection module 42. Similarly, a second test tube 50 is bypassed around the blood return tube 31 for drawing dialyzed blood from the patient through a second test tube pump 51 in the second test tube 50 and into a second blood test module 52. The first blood detection module 42 and the second blood detection module 52 each have a sensor for detecting various biochemical parameters of blood, such as a substance concentration sensor of urea, creatinine, sodium, phosphorus, etc. In order to avoid detection errors, the first blood detection module 42 and the second blood detection module 52 are preferably identical in structure.
The first blood detection module 42 and the second blood detection module 52 are respectively connected with a nutrition assessment analysis module 2 through data lines, and the nutrition assessment analysis module 2 can be a single chip microcomputer, a general-purpose computer or a server capable of running software computing functions, and the like. The blood parameters obtained by the first blood detection module 42 and the second blood detection module 52, such as the concentrations of urea, creatinine, sodium, phosphorus, etc. in the blood, are input to the nutrition assessment and analysis module 2 through data lines, and various biochemical indicators of the patient, such as standard protein decomposition rate nPCR (g/kg/day), creatinine production rate, phosphorus absorption amount (mg/day), salt intake amount (g/day), and dialysis adequacy index Kt/V, are calculated through an algorithm model of software in the nutrition assessment and analysis module 2.
The algorithm model of the software in the nutrition assessment and analysis module 2 may be any one of existing algorithm models, for example, the existing algorithm model disclosed in CN 102159260a, and the blood serum urea concentration at the end of the hemodialysis treatment may be calculated from six parameters, namely, the body fluid amount, the hemodialysis treatment time, the dehydration amount, the dialyzer area-related solute transport coefficient, the blood flow, and the dialysate flow, and the Kt/V value may be obtained from the blood serum urea concentration.
In addition, the nutrition assessment analysis module 2 has a data input interface (not shown in the figure) for inputting physiological parameters of the patient into the nutrition assessment analysis module, such as the weight of the patient before and after dialysis, dialysis time, blood flow, dialysate flow, etc. In an embodiment, the data input interface is connected to the blood pump 33 and the dialysate flow pump 21 respectively through data lines (not shown in the figure) to directly obtain the blood flow and the dialysate flow data without manual intervention, so that the accuracy of the data is improved, and manual misoperation is avoided.
When the patient carries out kidney replacement therapy through the device of this application, on the day of dialysis, can record through the data input interface on first blood detection module 42 and second blood detection module 52 and the nutrition evaluation analysis module 2 weight before and after the dialysis, dialysis time, blood flow, dialysate flow, the urea clearance and the phosphorus clearance of the hemodialyzer who uses. And calculating the nutrition evaluation condition of the patient by using the nutrition evaluation analysis module 2 according to the concentration of urea nitrogen (BUN), creatinine, phosphorus and sodium before and after dialysis in the detection result and the weight, dialysis time, blood flow, dialysate flow and urea clearance and phosphorus clearance of the hemodialyzer before and after dialysis.
The above calculation processes can be calculated by software in the nutrition assessment and analysis module 2, for example, a standard protein degradation rate nPCR (g/kg/day), a creatinine generation speed, a phosphorus absorption amount (mg/day), a salt intake amount (g/day), a dialysis adequacy index Kt/V, etc. can be obtained by calculation, and these indexes can display the nutrition status of the patient to the doctor and the patient through the display 100 connected to the nutrition assessment and analysis module 2, and at the same time, a normal biochemical index range can be provided on the display 100, and the assessment result of the nutrition status of the patient can be visually obtained by detecting and calculating the ratio of each obtained biochemical index to the normal index range. The doctor and the patient can adjust the diet regimen, the dialysis regimen, and the like according to the evaluation results displayed in real time on the display 100 to achieve the desired optimal dialysis treatment effect.
The utility model provides a kidney substitution treatment nutrition evaluation device, blood measured data when can be through the individual patient dialysis of real-time acquisition, with the quick analysis of bedside biochemical check out test set calculate key value and obtain relevant treatment nutrition evaluation result, including protein intake, salt intake, phosphorus intake, creatinine production speed, physical power and dialysis sufficiency Kt/V, and present doctor and patient with the calculated result through terminal equipment, thereby make the patient obtain timely quick effective accurate aassessment to the body nutrition situation when dialyzing, in time adjust treatment scheme, reach the best dialysis treatment effect of expectation.
It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (4)
1. A kidney replacement therapy nutrition assessment device comprises a dialyzer (3), a blood drawing tube (32), a blood return tube (31), a blood pump (33), a dialysate container (12), a waste liquid container (13), a dialysate input tube (20), a dialysate output tube (36), a dialysate flow pump (21) and a waste liquid pump (34); wherein the blood flows through the blood withdrawal vessel (32) into the blood chamber (30) of the dialyzer (3) and returns to the patient through the blood return vessel (31), the flow of the blood circuit being controlled by the blood pump (33); the dialysate is brought from the dialysate container (12) through the dialysate inlet tube (20) to a dialysate chamber (29) of the dialyzer (3), the dialysate chamber (29) being separated from the blood chamber (30) by a semi-permeable membrane; the dialysate flow is controlled by the dialysate flow pump (21); -the spent dialysis fluid from the dialysis chamber (29) is transported via the dialysis fluid outlet line (36) to the waste reservoir (13), the flow of spent dialysis fluid being controlled by the waste fluid pump (34), characterized in that the blood withdrawal vessel (32) is bypassed by a first detection line (40) for drawing pre-dialysis blood from the patient via a first detection line pump (41) in the first detection line (40) into a first blood detection module (42); a second detection tube (50) is arranged on the blood return tube (31) in a bypass way, and is used for drawing the dialyzed blood of the patient through a second detection tube pump (51) in the second detection tube (50) and leading the blood into a second blood detection module (52); the first blood detection module (42) and the second blood detection module (52) are provided with sensors for detecting blood parameters; the first blood detection module (42) and the second blood detection module (52) are respectively connected with a nutrition evaluation analysis module (2) through data lines; the nutrition evaluation and analysis module (2) is connected with a display (100).
2. The kidney substitution treatment nutrition assessment device according to claim 1, wherein the nutrition assessment analysis module (2) is a single chip microcomputer, a general purpose computer or a server capable of running software computing functions.
3. The kidney substitution therapy nutrition assessment device according to claim 1, characterized in that the nutrition assessment analysis module (2) has a data input interface which is connected by data lines with the blood pump (33) and the dialysate flow pump (21), respectively.
4. The renal replacement therapy nutritional assessment device of claim 1, wherein the first blood test module (42) and the second blood test module (52) are identical in structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720859483.XU CN208693297U (en) | 2017-07-14 | 2017-07-14 | Renal replacement therapies Nutrition Evaluation device |
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| CN201720859483.XU CN208693297U (en) | 2017-07-14 | 2017-07-14 | Renal replacement therapies Nutrition Evaluation device |
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| CN208693297U true CN208693297U (en) | 2019-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992333A (en) * | 2019-12-18 | 2021-06-18 | 森睿软件系统(上海)有限公司 | Diagnostic device and method for diagnosing adequacy of hemodialysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992333A (en) * | 2019-12-18 | 2021-06-18 | 森睿软件系统(上海)有限公司 | Diagnostic device and method for diagnosing adequacy of hemodialysis |
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