Use method of dialysis redness and swelling evaluator
The dialysis redness and swelling assessment device provides accurate digital assessment of dialysis catheter orifice lumps through a redness and swelling measurement device and an infrared thermometer, solving the subjective problem of early detection of dialysis catheter infections in existing technologies and enabling early and immediate infection assessment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-09
- Publication Date
- 2026-03-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the current technology, the early detection of dialysis catheter infection relies on visual observation and subjective judgment, which lacks quantitative standards, resulting in large differences in judgment and the inability to achieve early and timely warning. Existing equipment cannot provide accurate and digital assessment of redness and swelling.
The dialysis redness assessment device includes a redness measurement unit, a redness display ruler, an infrared thermometer, and a moving mechanism. It measures the height, width, and temperature of the dialysis port mass using a laser infrared level and calculates the area and volume of the mass using a controller, providing an accurate digital assessment.
It enables precise, digital measurement of redness and swelling around the dialysis catheter orifice and elevated skin temperature, reducing subjective judgment and providing early, immediate infection assessment reports to support clinical decision-making.
Smart Images

Figure CN121622016A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a method of using a dialysis redness and swelling detection device, and more particularly to a method of using a dialysis redness and swelling assessment device. Background Technology
[0002] Central venous catheters are one of the most important vascular access routes for hemodialysis patients. Catheter-related infection (CRBI) is a major complication with a persistently high incidence. Infections not only increase hospitalization and mortality rates but also significantly increase medical costs and economic burden.
[0003] Currently, early detection of dialysis catheter infections mainly relies on visual observation by nurses and doctors (such as the extent of redness and swelling, skin temperature, and exudate) and patient complaints (such as pain and tenderness). This method is highly subjective, lacks quantitative standards, and may result in differences in judgment among medical staff with different levels of experience. Furthermore, the "gold standard" is lagging: diagnosis often relies on blood culture or catheter tip culture, but this takes several days and cannot provide early, immediate warning. Once systemic symptoms (such as fever and chills) appear or the culture result is positive, it indicates that the infection is already quite serious, and the best intervention opportunity has been missed. Inaccurate recording: Medical records often use phrases like "approximately X cm" or "mild / moderate / severe" to describe the extent of redness and swelling, making it difficult to achieve accurate and traceable objective recording, which is not conducive to comparison before and after and tracking of the condition; including laboratory tests: such as complete blood count (white blood cell count, neutrophil percentage), inflammatory markers (C-reactive protein, procalcitonin); these are indirect indicators, have low specificity, and require blood draws and waiting time, so they cannot be used for real-time bedside screening; the use of a device specifically designed for early, objective, and quantitative assessment of infection at the hemodialysis catheter inlet has become a necessity for the assessment of dialysis redness and swelling. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a novel method for using a dialysis redness and swelling assessment device, eliminating the subjectivity of visual observation and providing accurate, digital measurements of redness and swelling and elevated skin temperature around the catheter opening.
[0005] The technical solution adopted in this invention is a dialysis redness and swelling assessment device, comprising: The swelling measurement device includes a swelling height measurement device and a swelling width measurement device; Redness and swelling display ruler, including a transparent vertical display ruler and a transparent horizontal display ruler; Infrared thermometer and controller; Moving mechanisms include longitudinal moving mechanisms and lateral moving mechanisms; The swelling measurement device, swelling display ruler, and infrared thermometer are connected to the moving mechanism, which is in turn connected to the support frame of the moving vehicle.
[0006] A method of using a dialysis redness assessment device includes: When in use, the controller is used to control the swelling measurement device and the swelling display ruler to measure and display the height, length and width of the swelling at the dialysis port; The controller calculates the area and volume of the tumor; Control the infrared thermometer to measure the temperature of the mass; The controller's display shows the height, width, area, volume, and temperature of the dialysis port mass. The controller compares the input height, width, area, volume, and temperature threshold data with the detected data to generate a report, providing doctors with a basis for assessing the inflammation of the mass. This addresses the subjectivity of current visual assessments of masses and provides accurate, digital measurements of redness and swelling around the duct opening, as well as elevated skin temperature.
[0007] The method of using the dialysis redness assessment device includes: A dialysis redness and swelling assessment device is moved to the patient's bedside using a mobile cart, and the redness and swelling height measuring device is moved to a position on the side of the dialysis port aligned with the swelling using a mobile mechanism; The first horizontal ray of the first height laser infrared level of the redness and swelling height measuring device passes through the vertical display ruler of the redness and swelling display ruler and is transmitted to the position of the lower bottom surface of the dialysis port mass; The second horizontal ray of the second height laser infrared level of the redness and swelling height measuring device passes through the vertical display ruler of the redness and swelling display and is transmitted to the position of the upper convex surface of the dialysis port mass; The height of the dialysis port mass is indicated by the height difference between the first and second horizontal rays projected onto the vertical display ruler. The moving mechanism moves the redness and swelling width measuring device to the position of the mass above the dialysis port; The first vertical cross ray of the first width laser infrared level of the redness and swelling width measuring device passes through the horizontal display ruler of the redness and swelling display ruler and is transmitted to the position of the left edge of the swelling on one side of the dialysis port. The second vertical cross ray of the second width laser infrared level of the redness and swelling width measuring device passes through the horizontal display ruler of the redness and swelling display ruler and is transmitted to the position of the right edge of the swelling on the other side of the dialysis port. The width of the dialysis port mass is displayed by measuring the distance difference between the first and second vertical cross rays projected onto the horizontal display ruler; this serves to show both the height and width of the dialysis port mass.
[0008] When using the aforementioned dialysis redness and swelling assessment device: The controller uses a potentiometer to control the longitudinal servo motor of the longitudinal moving mechanism and the transverse servo motor of the transverse moving mechanism to drive the first height laser infrared level to move longitudinally and transversely, so that the first horizontal ray of the first height laser infrared level passes through the vertical display ruler and is transmitted to the position of the bottom surface of the dialysis port mass. The potentiometer of the controller controls the longitudinal servo motor of the longitudinal movement mechanism and the lateral servo motor of the lateral movement mechanism to drive the second height laser infrared level to move longitudinally and laterally, so that the second horizontal ray of the second height laser infrared level passes through the vertical display ruler and is transmitted to the position of the upper convex surface of the dialysis port mass. The potentiometer of the controller controls the longitudinal servo motor of the longitudinal movement mechanism and the lateral servo motor of the lateral movement mechanism to drive the first width laser infrared level to move longitudinally and laterally, so that the first vertical cross ray of the first width laser infrared level passes through the horizontal display ruler and is transmitted to the position on one side of the dialysis port mass. The potentiometer of the controller controls the longitudinal servo motor of the longitudinal movement mechanism and the lateral servo motor of the lateral movement mechanism to drive the second width laser infrared level to move longitudinally and laterally, so that the second vertical cross ray of the second width laser infrared level passes through the horizontal display ruler and is transmitted to the position on the other side of the dialysis port mass.
[0009] When using the aforementioned dialysis redness and swelling assessment device: The controller controls the first horizontal ray of the first height laser infrared level to pass through the vertical display ruler and be transmitted to the lower bottom surface of the dialysis port mass. The controller also controls the second horizontal ray of the second height laser infrared level to pass through the vertical display ruler and be transmitted to the upper convex surface of the dialysis port mass. The controller controls the lifting mechanism of the vertical display ruler to raise it vertically. When the first infrared sensor of the vertical display ruler rises to the position of the first horizontal ray, the first infrared sensor transmits its data to the controller, and the controller stops the lifting mechanism. At the same time, the first height laser infrared level and the second height laser infrared level transmit the data of the first horizontal ray and the second horizontal ray to the controller. The controller calculates the height difference between the first horizontal ray and the second horizontal ray, calculates the height of the mass, and displays it on the controller's display.
[0010] When using the aforementioned dialysis redness and swelling assessment device: Based on clinical needs, the detection time cycle is determined, and the tumor height threshold is input through the controller's display. The controller is used to control the swelling height measuring device to measure the height of the lump, and the detection data is stored in the controller's memory; The controller periodically generates a yt height curve of the tumor over time, and displays the yt height curve on a monitor; the trend change of the tumor height is evaluated through the curve. When the swelling height measurement device measures the height of the lump to be greater than the control threshold, the controller activates its alarm to issue an alarm.
[0011] When using the aforementioned dialysis redness and swelling assessment device: The controller controls the first vertical cross ray of the first width laser infrared level to pass through the horizontal display ruler and be transmitted to the left and upper edges of the dialysis port mass. The controller also controls the second vertical cross ray of the second width laser infrared level to pass through the horizontal display ruler and be transmitted to the right and lower edges of the other side of the dialysis port mass. The controller controls the moving element to move the horizontal display ruler. When the second infrared receiving element of the horizontal display ruler moves to the position of the second vertical crosshair, the second infrared receiving element transmits its data to the controller, and the controller stops the moving element. At the same time, the first width laser infrared level and the second width laser infrared level transmit the data of the first vertical crosshair and the second vertical crosshair to the controller. The controller calculates the area of the square formed by the first vertical crosshair and the second vertical crosshair, calculates the area of the mass, and displays it on the controller's display.
[0012] When using the aforementioned dialysis redness and swelling assessment device: The controller controls the first vertical cross ray of the first width laser infrared level to pass through the horizontal display ruler and be transmitted to the left and upper edges of the dialysis port mass. The controller also controls the second vertical cross ray of the second width laser infrared level to pass through the horizontal display ruler and be transmitted to the right and lower edges of the dialysis port mass on the other side. The width of the mass is displayed by the distance between the first vertical crosshair of the first vertical crosshair and the second vertical crosshair of the second vertical crosshair, using the second horizontal dimension line of the horizontal display ruler. The length of the mass is displayed by the distance between the first vertical crosshair of the first vertical crosshair and the second vertical crosshair of the second vertical crosshair, using the first horizontal dimension line of the horizontal display ruler.
[0013] When using the aforementioned dialysis redness and swelling assessment device: Based on clinical needs, the detection time cycle is determined, and the tumor width threshold is input through the controller's display. The controller is used to control the redness and swelling width measuring device to measure the width of the lump, and the detection data is stored in the controller's memory; The controller periodically generates an xt-width curve of the tumor over time, and displays the xt-width curve on a monitor; the trend of the tumor width is evaluated through the curve. When the swelling height measuring device measures the width of the lump to be greater than the controlled threshold, the controller activates its alarm to issue an alarm.
[0014] When using the aforementioned dialysis redness and swelling assessment device: Based on clinical needs, the detection time cycle is determined, and the tumor area threshold is input through the controller's display. The controller is used to control the swelling width measuring device to measure the length and width of the lump, and the detection data is stored in the controller's memory; the controller is also used to calculate the area of the lump based on its length and width. The controller periodically generates st area curves of the tumor over time, and displays these curves on a monitor; the trend of tumor area changes is assessed through the curves. When the swelling height measuring device measures the area of the lump to be greater than the control threshold, the controller activates its alarm to issue an alarm.
[0015] When using the aforementioned dialysis redness and swelling assessment device: Based on clinical needs, the detection time cycle is determined, and the tumor volume threshold is input through the controller's display. The controller is used to control the swelling height measuring device to measure the height of the lump, and the detection data is stored in the controller's memory; The controller is used to control the swelling width measuring device to measure the length and width of the lump, and the detection data is stored in the controller's memory; The controller calculates the volume of the tumor based on its height, length, and width. The controller periodically generates a VT-volume curve of the tumor over time, and displays the VT-volume curve on a monitor; the trend of tumor volume change is evaluated through the curve. When the swelling height measuring device measures the volume of the lump to be greater than the control threshold, the controller activates its alarm to issue an alarm.
[0016] When the dialysis redness assessment device is in use, if the longitudinal beam and the transverse beam of the mobile carriage are not on the same horizontal plane, the longitudinal tilt sensor and the transverse tilt sensor of the horizontal adjustment mechanism transmit their data to the controller. The controller controls the longitudinal lifting element and the transverse lifting element of the horizontal adjustment mechanism to drive the longitudinal beam and the transverse beam to swing around the center of the ball connector of the mobile carriage. When the longitudinal beam and the transverse beam are on the same horizontal plane, the controller controls the longitudinal lifting element and the transverse lifting element to stop, thus controlling the longitudinal lifting element and the transverse lifting element to be on the same horizontal plane.
[0017] The beneficial effects of this invention are as follows: A dialysis redness and swelling assessment device includes a redness and swelling measuring device, a moving mechanism, a redness and swelling display ruler, an infrared thermometer, and a controller. The redness and swelling measuring device includes a laser infrared level. In use, the controller controls the laser infrared level and the redness and swelling display ruler to measure and display the height, length, and width of the dialysis port mass. The controller also calculates the area and volume of the mass and controls the infrared thermometer to measure the temperature of the mass. The controller displays the mass's height curve (ht), width curve (xt), area curve (st), volume curve (vt), and temperature curve (Tt) to assess the trend of mass changes. The controller compares the received height, width, area, volume, and temperature threshold data with the detected data to generate a report, providing a basis for doctors to assess the inflammation of the mass, solving the subjective problem of current visual assessment of masses, and providing accurate, digital measurements of redness and swelling and increased skin temperature around the catheter opening. Attached Figure Description
[0018] Figure 1 A schematic diagram of the structure of a dialysis redness and swelling assessment device; Figure 2 This is a schematic diagram of a vertical display ruler; Figure 3 This is a diagram illustrating the measurement of the mass height; Figure 4 This is a curve showing the height of the mass (yt). Figure 5 This is a schematic diagram of a horizontal display ruler; Figure 6 This is an XT width curve of the mass; Figure 7 This is a curve showing the area of the mass (ST). Figure 8 This is a curve showing the volume of the tumor (vt). Figure 9 This is a schematic diagram of the horizontal adjustment mechanism; Figure 10 This is a temperature curve (Tt) of the mass.
[0019] Figure label: The device comprises: a swelling measuring device 100, a swelling height measuring device 101, a first height laser infrared level 110, a first horizontal ray 1101, a second height laser infrared level 120, a second horizontal ray 1201, a swelling width measuring device 200, a first width laser infrared level 210, a first vertical cross ray 2101, a first vertical cross ray 2102, a first vertical cross ray 2103, a second width laser infrared level 220, a second vertical cross ray 2201, a second vertical cross ray 2202, a second vertical cross ray 2203, a moving mechanism 300, a longitudinal moving mechanism 310, a longitudinal servo motor 3101, a longitudinal drive wheel 3102, a longitudinal slide rail 3103, and a longitudinal slide groove 3104, a transverse moving mechanism 320, a transverse servo motor 3201, a transverse drive wheel 3202, a transverse slide rail 3203, and a transverse slide groove 3204. Redness display ruler 400, first infrared receiver element 401, second infrared receiver element 402, vertical display ruler 410, lifting mechanism 411, parallel dimension line 412, parallel zero line 4121, horizontal display ruler 420, moving element 421, horizontal dimension line 422, horizontal zero line 4220, first horizontal dimension line 4221, second horizontal dimension line 4222, moving cart 500, bracket 501, transverse beam 502, longitudinal beam 50 3. Horizontal adjustment mechanism 510, ball connector 511, longitudinal lifting element 512, lateral lifting element 513, longitudinal tilt sensor 514, lateral tilt sensor 515, patient 600, dialysis port 601, mass 602, lower bottom surface 603, upper convex surface 604, left edge 605, right edge 606, upper edge 607, lower edge 608, controller 700, potentiometer 701, display 702, infrared thermometer 800. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-3 As shown, a dialysis redness assessment device includes: The swelling measurement device 100 includes a swelling height measurement device 101 and a swelling width measurement device 200; Redness and swelling display ruler 400, including transparent vertical display ruler 410 and transparent horizontal display ruler 420; Infrared thermometer 800 and controller 700; The moving mechanism 300 includes a longitudinal moving mechanism 310 and a lateral moving mechanism 320; The swelling measuring device 100, the swelling display ruler 400, and the infrared thermometer 800 are connected to the moving mechanism 300, and the moving mechanism 300 is connected to the bracket 501 of the moving vehicle 500; the controller 700 is connected to the swelling measuring device 100, the moving mechanism 300, the swelling display ruler 400, and the infrared thermometer 800 via control lines.
[0021] In use, the controller 700 controls the swelling measurement device 100 and the swelling display ruler 400 to measure and display the height, length and width of the swelling 602 at the dialysis port 601; The area and volume of the tumor 602 are calculated via controller 700; And control the infrared thermometer 800 to measure the temperature of the mass; The height, width, area, volume, and temperature of the dialysis port 601 and the tumor 602 are displayed on the display 702 of the controller 700. The controller 700 compares the input height, width, area, volume, and temperature threshold data with the detected data to generate a report, providing doctors with a basis for assessing the inflammation of the mass. This addresses the subjectivity of current visual assessments of masses and provides accurate, digital measurements of redness and swelling around the duct opening, as well as elevated skin temperature.
[0022] To measure the height and width of the swelling 602 at the dialysis port 601, the swelling height measuring device 101 includes a first height laser infrared level 110 and a second height laser infrared level 120; the swelling width measuring device 200 includes a first width laser infrared level 210 and a second width laser infrared level 220; the moving mechanism 300 includes multiple moving mechanisms, with the first height laser infrared level 110, the second height laser infrared level 120, the first width laser infrared level 210, and the second width laser infrared level 220 respectively connected to each moving mechanism 300; the vertical display ruler 410 is located opposite the swelling height measuring device 101, and the horizontal display ruler 420 is located opposite the swelling width measuring device 200.
[0023] When using the aforementioned dialysis redness and swelling assessment device, a mobile cart 500 moves the device to the patient's bedside. A moving mechanism 300 moves the redness and swelling height measuring device 101 to a position on the side of the dialysis port 601, aligned with the swelling 602. The first horizontal ray 1101 of the first height laser infrared level 110 of the redness and swelling height measuring device 101 passes through the vertical display ruler 410 and is projected onto the lower surface 603 of the swelling 602 at the dialysis port 601. The second horizontal ray 1201 of the second height laser infrared level 120 of the redness and swelling height measuring device 101 passes through the vertical display ruler 410 and is projected onto the upper convex surface 604 of the swelling 602 at the dialysis port 601. The height difference between the first horizontal ray 1101 and the second horizontal ray 1201 projected onto the vertical display ruler 410 indicates the height of the swelling 602 at the dialysis port 601. The measurement device 200 is moved by the moving mechanism 300 to the position of the swelling width measuring device 200 above the dialysis port 601 and aligned with the mass 602. The first vertical cross ray 2101 of the first width laser infrared level 210 of the swelling width measuring device 200 passes through the horizontal display ruler 420 and is transmitted to the left edge 605 of the mass 602 on one side of the dialysis port 601. The second vertical cross ray 2201 of the second width laser infrared level 220 of the swelling width measuring device 200 passes through the horizontal display ruler 420 and is transmitted to the right edge 606 of the mass 602 on the other side of the dialysis port 601. The width of the mass 602 in the dialysis port 601 is displayed by the distance difference between the first vertical cross ray 2101 and the second vertical cross ray 2201 that are transmitted to the horizontal display ruler 420. This achieves the purpose of displaying the height and width of the mass 602 in the dialysis port 601.
[0024] To achieve longitudinal and lateral movement of the moving mechanism 300, such as Figure 2The schematic diagram of the moving mechanism structure shown illustrates that the lateral moving mechanism 320 of the moving mechanism 300 includes a lateral servo motor 3201, a lateral drive wheel 3202, a lateral slide rail 3203, and a lateral slide groove 3204; the longitudinal moving mechanism 310 of the moving mechanism 300 includes a longitudinal servo motor 3101, a longitudinal drive wheel 3102, a longitudinal slide rail 3103, and a longitudinal slide groove 3104; the lateral slide groove 3204 is fixedly connected to the bracket 501 of the moving vehicle 500, the lateral slide rail 3203 is movably connected to the lateral slide groove 3204, the base of the lateral servo motor 3201 is fixedly connected to the lateral slide rail 3203, and the lateral servo motor 3201... The motor shaft is connected to the transverse drive wheel 3202, which contacts the bracket 501, so that the transverse servo motor 3201 drives the transverse slide rail 3203 to move along the transverse slide groove 3204; the longitudinal slide groove 3104 is fixedly connected to the transverse slide rail 3203, and the longitudinal slide rail 3103 is movably connected to the longitudinal slide groove 3104; the base of the longitudinal servo motor 3101 is fixedly connected to the longitudinal slide rail 3103; the motor shaft of the longitudinal servo motor 3101 is connected to the longitudinal drive wheel 3102, which contacts the transverse slide rail 3203, so that the longitudinal servo motor 3101 drives the longitudinal slide rail 3103 to move along the longitudinal slide groove 3104.
[0025] In order to enable the redness and swelling height measuring device 101 and the redness and swelling width measuring device 200 to move longitudinally and laterally using the moving mechanism 300, the longitudinal slide rail 3103 of the longitudinal moving mechanism 310 of each moving mechanism 300 is fixedly connected to the outer shell of the first height laser infrared level 110, the second height laser infrared level 120, the first width laser infrared level 210 and the second width laser infrared level 220 respectively.
[0026] To enable the input and measurement of control parameters using the controller 700, the dialysis redness and swelling assessment device includes a programmable controller 700. The controller 700 includes multiple potentiometers 701 and a touch screen display 702. The controller 700 is connected via control lines to the control wiring boards of the longitudinal servo motor 3101 of the longitudinal movement mechanism 310, the lateral servo motor 3201 of the lateral movement mechanism 320, the first height laser infrared level 110, the second height laser infrared level 120, the first width laser infrared level 210, and the second width laser infrared level 220. This allows the controller 700 to control the movement mechanism 300 using the potentiometers 701 and to display the detected parameters on the touch screen display 702.
[0027] When using the dialysis redness and swelling assessment device: The potentiometer 701 of the controller 700 controls the longitudinal servo motor 3101 of the longitudinal movement mechanism 310 and the lateral servo motor 3201 of the lateral movement mechanism 320, driving the first height laser infrared level 110 to move longitudinally and laterally. This causes the first horizontal ray 1101 of the first height laser infrared level 110 to pass through the vertical display ruler 410 and be projected onto the lower surface 603 of the dialysis port 601. The potentiometer 701 of the controller 700 also controls the longitudinal servo motor 3101 of the longitudinal movement mechanism 310 and the lateral servo motor 3201 of the lateral movement mechanism 320, driving the second height laser infrared level 120 to move longitudinally and laterally. This causes the second horizontal ray 1201 of the second height laser infrared level 120 to pass through the vertical display ruler 410 and be projected onto the convex surface of the dialysis port 601 and the convex surface of the dialysis port 602. Position 604; using the potentiometer 701 of the controller 700 to control the longitudinal servo motor 3101 of the longitudinal moving mechanism 310 and the lateral servo motor 3201 of the lateral moving mechanism 320 to drive the first width laser infrared level 210 to move longitudinally and laterally, so that the first vertical cross ray 2101 of the first width laser infrared level 210 passes through the horizontal display ruler 420 and is transmitted to the position on one side of the dialysis port 601 and the tumor 602; using the potentiometer 701 of the controller 700 to control the longitudinal servo motor 3101 of the longitudinal moving mechanism 310 and the lateral servo motor 3201 of the lateral moving mechanism 320 to drive the second width laser infrared level 220 to move longitudinally and laterally, so that the second vertical cross ray 2201 of the second width laser infrared level 220 passes through the horizontal display ruler 420 and is transmitted to the position on the other side of the dialysis port 601 and the tumor 602.
[0028] like Figure 3 The schematic diagram of the vertical display ruler shown illustrates that, in order to detect and display the height of the mass 602, the vertical display ruler 410 is equipped with a lifting mechanism 411. The housing of the lifting mechanism 411 is connected to the bracket 501, and the drive rod of the lifting mechanism 411 is connected to the vertical display ruler 410. The lifting mechanism 411 includes an electric push rod. The vertical display ruler 410 is perpendicular to the horizontal plane and includes a parallel dimension line 412, which is parallel to the horizontal line. The parallel dimension line 412 includes a parallel zero line 4121. The vertical display ruler 410 includes a first infrared receiving element 401, and the center line of the first infrared receiving element 401 is on the same horizontal line as the parallel zero line 4121.
[0029] When the dialysis redness and swelling assessment device is used: the controller 700 controls the first horizontal ray 1101 of the first height laser infrared level 110 to pass through the vertical display ruler 410 and be transmitted to the position of the lower bottom surface 603 of the dialysis port 601 and the swelling 602. The controller 700 also controls the second horizontal ray 1201 of the second height laser infrared level 120 to pass through the vertical display ruler 410 and be transmitted to the position of the upper convex surface 604 of the dialysis port 601 and the swelling 602. Then, the controller 700 controls the lifting mechanism 411 to drive the vertical display ruler 410 to rise vertically. When the first infrared light... When component 401 rises to the position of the first horizontal ray 1101, the first infrared sensor 401 transmits its data to the controller 700, and the controller 700 controls the lifting mechanism 411 to stop. At the same time, the first height laser infrared level 110 and the second height laser infrared level 120 transmit the data of the first horizontal ray 1101 and the second horizontal ray 1201 to the controller 700. The controller 700 calculates the height difference between the first horizontal ray 1101 and the second horizontal ray 1201, calculates the height of the mass 602, and displays it on the display 702 of the controller 700.
[0030] like Figure 4 The mass height yt curve shown is characterized in that: when the dialysis redness and swelling assessment device is used: Based on clinical needs, the doctor establishes a testing time cycle and inputs the height threshold of the lump 602 through the display 702 of the controller 700. The controller 700 controls the swelling height measuring device 101 to measure the height of the lump 602 and stores the test data in the memory of the controller 700. The controller 700 periodically compiles a yt height curve of the lump 602 over time and displays the yt height curve through the display 702. The trend change of the height of the lump 602 is evaluated through the curve. When the swelling height measuring device 101 measures the height of the lump 602 to be greater than the controlled threshold, the controller 700 activates its alarm to issue an alarm.
[0031] like Figure 5 The schematic diagram of the horizontal display ruler shown illustrates that, in order to detect and display the area of the mass 602, the horizontal display ruler 420 is connected to the longitudinal slide rail 3103 of the longitudinal moving mechanism 310 of the moving mechanism 300. The moving mechanism 300 is connected to the bracket 501. The horizontal display ruler 420 is parallel to the horizontal plane and includes a horizontal dimension line 422, which is parallel to the horizontal line and includes a horizontal zero line 4220. The horizontal display ruler 420 includes a second infrared receiving element 402, the center line of which is perpendicular to the horizontal zero line 4220 and is located on the horizontal zero line 4220.
[0032] When the dialysis redness and swelling assessment device is used: the controller 700 controls the first vertical crosshair 2101 of the first width laser infrared level 210 to pass through the horizontal display ruler 420 and be projected onto the left edge 605 and the top edge 607 on one side of the swelling 602 at the dialysis port 601; the controller 700 controls the second vertical crosshair 2201 of the second width laser infrared level 220 to pass through the horizontal display ruler 420 and be projected onto the right edge 606 and the bottom edge 608 on the other side of the swelling 602 at the dialysis port 601; the controller 700 then controls the moving element 421 to move the horizontal display ruler 420, and when the second infrared light receives... When component 402 moves to the position of the second vertical cross ray 2201, the second infrared receiving component 402 transmits its data to the controller 700, and the controller 700 controls the moving component 421 to stop; at the same time, the first width laser infrared level 210 and the second width laser infrared level 220 transmit the data of the first vertical cross ray 2101 and the second vertical cross ray 2201 to the controller 700, and the controller 700 calculates the area of the square 2101 formed by the first vertical cross ray 2101 and the second vertical cross ray 2201, calculates the area of the mass 602, and displays it through the display 702 of the controller 700.
[0033] The horizontal dimension line 422 of the horizontal display ruler 420 includes a first horizontal dimension line 4221 and a second horizontal dimension line 4222, with the first horizontal dimension line 4221 and the second horizontal dimension line 4222 being perpendicular; the first vertical cross ray 2101 has a first vertical cross ray 2102 and a first vertical cross ray 2103, with the first vertical cross ray 2102 and the first vertical cross ray 2103 being perpendicular; the second vertical cross ray 2201 has a second vertical cross ray 2202 and a second vertical cross ray 2203, with the second vertical cross ray 2202 and the second vertical cross ray 2203 being perpendicular.
[0034] When the dialysis redness and swelling assessment device is used, the controller 700 controls the first vertical cross ray 2101 of the first width laser infrared level 210 to pass through the horizontal display ruler 420 and be transmitted to the position of the left edge 605 and the upper edge 607 on one side of the dialysis port 601 and the swelling 602. The controller 700 also controls the second vertical cross ray 2201 of the second width laser infrared level 220 to pass through the horizontal display ruler 420 and be transmitted to the position of the right edge 606 and the lower edge 608 on the other side of the dialysis port 601 and the swelling 602. The width of the mass 602 is displayed by the distance between the first vertical cross ray 2102 of the first vertical cross ray 2101 and the second vertical cross ray 2202 of the second vertical cross ray 2201, using the second horizontal dimension line 4222 of the horizontal display ruler 420; the length of the mass 602 is displayed by the distance between the first horizontal cross ray 2103 of the first vertical cross ray 2101 and the second horizontal cross ray 2203 of the second vertical cross ray 2201, using the first horizontal dimension line 4221 of the horizontal display ruler 420.
[0035] like Figure 6 The diagram shows the XT curve of the mass width. When the dialysis redness and swelling assessment device is used: the doctor determines the detection time period according to clinical needs and inputs the mass width threshold 602 through the display 702 of the controller 700; the controller 700 controls the redness and swelling width measuring device 200 to measure the width of the mass 602 and stores the detection data in the memory of the controller 700; the controller 700 periodically compiles the XT width curve of the mass 602 changing over time and displays the XT width curve through the display 702; the trend change of the width of the mass 602 is evaluated through the curve; when the redness and swelling height measuring device 101 measures the width of the mass 602 to be greater than the controlled threshold, the controller 700 controls its alarm to sound an alarm.
[0036] like Figure 7 The diagram shows the ST curve of the mass area. When the dialysis redness and swelling assessment device is used: the doctor determines the detection time cycle according to clinical needs and inputs the mass area threshold of 602 through the display 702 of the controller 700; the controller 700 controls the redness and swelling width measuring device 200 to measure the length and width of the mass 602 and stores the detection data in the memory of the controller 700; the controller 700 calculates the area of the mass 602 based on its length and width; the controller 700 periodically compiles the ST area curve of the mass 602 over time and displays the ST area curve through the display 702; the trend change of the mass area of 602 is evaluated through the curve; when the redness and swelling height measuring device 101 measures the area of the mass 602 to be greater than the controlled threshold, the controller 700 activates its alarm to issue an alarm.
[0037] like Figure 8 The volume vt curve of the mass shown is illustrated in the diagram. When the dialysis redness and swelling assessment device is used: the doctor determines the detection time period according to clinical needs and inputs the mass 602 volume threshold through the display 702 of the controller 700; the controller 700 controls the redness and swelling height measuring device 101 to measure the height of the mass 602 and stores the detection data in the memory of the controller 700; the controller 700 controls the redness and swelling width measuring device 200 to measure the length and width of the mass 602 and stores the detection data in the memory of the controller 700; the controller 700 calculates the volume of the mass 602 based on its height, length, and width; the controller 700 periodically generates a vt volume curve of the mass 602 over time and displays the vt volume curve through the display 702; the trend change of the mass 602 volume is evaluated through the curve; when the redness and swelling height measuring device 101 measures the volume of the mass 602 to be greater than the controlled threshold, the controller 700 activates its alarm to issue an alarm.
[0038] To ensure that the control bracket 501 is in a horizontal position, such as Figure 1 The diagram shows a structural schematic of a dialysis redness and swelling assessment device, and Figure 9 The schematic diagram of the horizontal adjustment mechanism shown illustrates that the mobile vehicle 500 includes a horizontal adjustment mechanism 510. The horizontal adjustment mechanism 510 includes a ball connector 511, a longitudinal lifting element 512, a lateral lifting element 513, a longitudinal tilt sensor 514, and a lateral tilt sensor 515. The longitudinal lifting element 512 and the lateral lifting element 513 include electric push rods. A bracket 501 is dynamically connected to the mobile vehicle 500 via the ball connector 511. The housing of the lateral lifting element 513 is connected to the mobile vehicle 500. The drive rod of 13 is connected to the transverse beam 502 of the bracket 501, and the transverse tilt sensor 515 is installed on the transverse beam 502; the housing of the longitudinal lifting element 512 is connected to the moving vehicle 500, the drive rod of the longitudinal lifting element 512 is connected to the longitudinal beam 503 of the bracket 501, and the longitudinal tilt sensor 514 is installed on the longitudinal beam 503; the controller 700 is connected to the longitudinal lifting element 512, the transverse lifting element 513, the longitudinal tilt sensor 514, and the transverse tilt sensor 515 through control lines to control the bracket 501 to be in a horizontal state.
[0039] When the dialysis redness assessment device is in use, if the longitudinal beam 503 and the transverse beam 502 of the support 501 of the mobile cart 500 are not on the same horizontal plane, the longitudinal tilt sensor 514 and the transverse tilt sensor 515 transmit their data to the controller 700. The controller 700 controls the longitudinal lifting element 512 and the transverse lifting element 513 to drive the longitudinal beam 503 and the transverse beam 502 to swing around the center of the ball connector 511 of the mobile cart 500. When the longitudinal beam 503 and the transverse beam 502 are on the same horizontal plane, the controller 700 controls the longitudinal lifting element 512 and the transverse lifting element 513 to stop, thus controlling the longitudinal lifting element 512 and the transverse lifting element 513 to be on the same horizontal plane.
[0040] The longitudinal slide rail 3103 of the longitudinal moving mechanism 310 of the moving mechanism 300 is connected to the housing of the infrared thermometer 800. The moving mechanism 300 is connected to the bracket 501 so that the controller 700 can control the moving mechanism 300 to drive the infrared thermometer 800 to move longitudinally and laterally to measure the temperature of the tumor 602 at the dialysis port 601.
[0041] like Figure 10 The temperature Tt curve of the mass shown illustrates the use of the dialysis redness and swelling assessment device. When in use, the doctor determines the detection time period based on clinical needs and inputs the temperature threshold of the mass 602 through the display 702 of the controller 700. The controller 700 controls the infrared thermometer 800 to measure the temperature of the mass 602 and stores the detection data in the memory of the controller 700. The controller 700 periodically compiles the Tt temperature curve of the mass 602 over time and displays the Tt temperature curve on the display 702. The trend change of the temperature of the mass 602 is evaluated through the curve. When the infrared thermometer 800 measures the temperature of the mass 602 to be greater than the controlled threshold, the controller 700 activates its alarm to issue an alarm.
Claims
1. A method for using a dialysis swelling evaluator, the dialysis swelling evaluator comprising a swelling height measuring device, a swelling width measuring device, a moving mechanism, a swelling display ruler, an infrared temperature measuring device, and a controller, the swelling measuring device, the swelling display ruler, and the infrared temperature measuring device being connected to the moving mechanism, and the moving mechanism being connected to a moving vehicle; characterized in that The method comprises the following steps: using the controller to control the swelling measuring device and the swelling display ruler to measure and display the height, length, and width of a dialysis port swelling; calculating the area and volume of the swelling by the controller; controlling the infrared temperature measuring device to measure the temperature of the swelling; displaying the height, width, area, volume, and temperature of the dialysis port swelling on the display of the controller; comparing the input height, width, area, volume, and temperature threshold data with the detected data by the controller to make a report for the doctor to evaluate the inflammation of the swelling, thereby solving the subjectivity problem of the current visual evaluation of the swelling and providing accurate and digital measurement values for the swelling around the catheter port and the increased skin temperature.
2. The method of using a dialysis redness evaluator of claim 1, wherein, The method comprises the following steps: moving the dialysis swelling evaluator to the bedside of a patient by the moving vehicle, and moving the swelling height measuring device to a position on the side of the dialysis port by the moving mechanism to align with the swelling; passing the first horizontal ray of the first height laser infrared level of the swelling height measuring device through the vertical display ruler of the swelling display ruler and transmitting to the position of the lower bottom surface of the dialysis port swelling; passing the second horizontal ray of the second height laser infrared level of the swelling height measuring device through the vertical display ruler of the swelling display ruler and transmitting to the position of the upper convex surface of the dialysis port swelling; displaying the height of the dialysis port swelling by the height difference between the first horizontal ray and the second horizontal ray of the vertical display ruler; moving the swelling width measuring device to a position above the dialysis port by the moving mechanism to align with the swelling; passing the first vertical cross ray of the first width laser infrared level of the swelling width measuring device through the horizontal display ruler of the swelling display ruler and transmitting to the left edge of one side of the dialysis port swelling; passing the second vertical cross ray of the second width laser infrared level of the swelling width measuring device through the horizontal display ruler of the swelling display ruler and transmitting to the right edge of the other side of the dialysis port swelling; displaying the width of the dialysis port swelling by the distance difference between the first vertical cross ray and the second vertical cross ray of the horizontal display ruler, thereby achieving the purpose of displaying the height and width of the dialysis port swelling.
3. The method of using a dialysis redness evaluator of claim 2, wherein: When using the dialysis swelling evaluator, the controller is used to control the longitudinal servo motor of the longitudinal moving mechanism of the moving mechanism and the transverse servo motor of the transverse moving mechanism of the moving mechanism to drive the longitudinal and transverse movement of the first height laser infrared level, so that the first horizontal ray of the first height laser infrared level passes through the vertical display ruler and transmits to the position of the lower bottom surface of the dialysis port swelling. The longitudinal servo motor of the longitudinal moving mechanism and the transverse servo motor of the transverse moving mechanism are controlled by the potentiometer of the controller to drive the second height laser infrared level to move longitudinally and transversely, so that the second horizontal ray of the second height laser infrared level passes through the vertical display ruler and is transmitted to the position of the upper convex surface of the dialysis port swelling mass; The longitudinal servo motor of the longitudinal moving mechanism and the transverse servo motor of the transverse moving mechanism are controlled by the potentiometer of the controller to drive the first width laser infrared level to move longitudinally and transversely, so that the first vertical cross ray of the first width laser infrared level passes through the horizontal display ruler and is transmitted to the position of one side of the dialysis port swelling mass; The longitudinal servo motor of the longitudinal moving mechanism and the transverse servo motor of the transverse moving mechanism are controlled by the potentiometer of the controller to drive the second width laser infrared level to move longitudinally and transversely, so that the second vertical cross ray of the second width laser infrared level passes through the horizontal display ruler and is transmitted to the position of the other side of the dialysis port swelling mass.
4. The method of using a dialysis redness evaluator of claim 2, wherein: When the dialysis swelling evaluator is used: After the first horizontal ray of the first height laser infrared level is controlled by the controller to pass through the vertical display ruler and is transmitted to the position of the lower bottom surface of the dialysis port swelling mass, and the second horizontal ray of the second height laser infrared level is controlled by the controller to pass through the vertical display ruler and is transmitted to the position of the upper convex surface of the dialysis port swelling mass; The lifting mechanism of the vertical display ruler is controlled by the controller to drive the vertical display ruler to vertically ascend, when the first infrared receiving element of the vertical display ruler ascends to the position of the first horizontal ray, the first infrared receiving element transmits its data to the controller, the controller controls the lifting mechanism to stop; at the same time, the first height laser infrared level and the second height laser infrared level transmit the data of the first horizontal ray and the second horizontal ray to the controller, the height difference between the first horizontal ray and the second horizontal ray is calculated by the controller, the height of the swelling mass is calculated, and the height of the swelling mass is displayed on the display of the controller.
5. The method of using a dialysis redness evaluator of claim 2, wherein: When the dialysis swelling evaluator is used: According to the clinical needs, the time period of detection is determined, and the threshold value of the height of the swelling mass is input on the display of the controller; The height of the swelling mass is measured by the swelling height measuring device controlled by the controller, and the detection data is stored in the memory of the controller; The y-t height curve of the swelling mass changing with time is regularly prepared by the controller, and the y-t height curve is displayed on the display; the trend change of the height of the swelling mass is evaluated through the curve; When the height of the swelling mass measured by the swelling height measuring device is greater than the threshold value controlled by the controller, the alarm of the controller is controlled to alarm.
6. The method of using a dialysis redness evaluator of claim 2, wherein: When the dialysis swelling evaluator is used: After the first vertical cross ray of the first width laser infrared level is controlled by the controller to pass through the horizontal display ruler and is transmitted to the position of the left edge and the upper edge of one side of the dialysis port swelling mass, and the second vertical cross ray of the second width laser infrared level is controlled by the controller to pass through the horizontal display ruler and is transmitted to the position of the right edge and the lower edge of the other side of the dialysis port swelling mass; The controller controls the moving element to drive the horizontal display ruler to move, when the second infrared receiving element of the horizontal display ruler moves to the position of the second vertical cross line, the second infrared receiving element transmits its data to the controller, the controller controls the moving element to stop; meanwhile, the first and second width laser infrared level instruments transmit the data of the first and second vertical cross lines to the controller, the controller calculates the area of the square constituted by the first and second vertical cross lines, calculates the area of the tumor, and displays the area on the display of the controller.
7. The method of using a dialysis redness evaluator of claim 5, wherein: The dialysis swelling evaluator is used as follows: The controller controls the first vertical cross line of the first width laser infrared level instrument to pass through the horizontal display ruler and be transmitted to the position of the left edge and the upper edge of the tumor on one side of the dialysis opening, and controls the second vertical cross line of the second width laser infrared level instrument to pass through the horizontal display ruler and be transmitted to the position of the right edge and the lower edge of the tumor on the other side of the dialysis opening; The width of the tumor is displayed by the distance between the first vertical cross vertical line of the first vertical cross line and the second vertical cross vertical line of the second vertical cross line through the second horizontal dimension line of the horizontal display ruler; The length of the tumor is displayed by the distance between the first vertical cross horizontal line of the first vertical cross line and the second vertical cross horizontal line of the second vertical cross line through the first horizontal dimension line of the horizontal display ruler.
8. The method of using a dialysis redness evaluator of claim 2, wherein: The dialysis swelling evaluator is used as follows: According to the clinical needs, a time period for detection is formulated, and a tumor area threshold value is input on the display of the controller; The controller controls the swelling width measuring device to measure the length and width of the tumor, and stores the detection data in the memory of the controller; The controller calculates the area of the tumor according to the length and width of the tumor; The controller regularly compiles an s-t area curve of the tumor over time, and displays the s-t area curve on the display; the trend change of the area of the tumor is evaluated through the curve; When the swelling height measuring device measures that the area of the tumor is greater than the threshold value controlled, the controller controls the alarm to alarm and prompt.
9. The method of using a dialysis redness evaluator of claim 2, wherein: The dialysis swelling evaluator is used as follows: According to the clinical needs, a time period for detection is formulated, and a tumor volume threshold value is input on the display of the controller; The controller controls the swelling height measuring device to measure the height of the tumor, and stores the detection data in the memory of the controller; The controller controls the swelling width measuring device to measure the length and width of the tumor, and stores the detection data in the memory of the controller; The controller calculates the volume of the tumor according to the height, length and width of the tumor; The controller regularly compiles a v-t volume curve of the tumor over time, and displays the v-t volume curve on the display; the trend change of the volume of the tumor is evaluated through the curve; When the swelling height measuring device measures that the volume of the tumor is greater than the threshold value controlled, the controller controls the alarm to alarm and prompt.
10. The method of claim 2, wherein said mobile cart includes a horizontal adjustment mechanism. The horizontal adjusting mechanism's longitudinal inclination sensor and transverse inclination sensor transmit data to the controller when the longitudinal beam of the support of the moving vehicle and the transverse beam of the support are not in the same horizontal plane, the controller controls the longitudinal lifting element and the transverse lifting element of the horizontal adjusting mechanism to drive the longitudinal beam and the transverse beam to swing the spherical center of the spherical connector of the moving vehicle, and the controller controls the longitudinal lifting element and the transverse lifting element to stop when the longitudinal beam and the transverse beam are in the same horizontal plane, and controls the longitudinal lifting element and the transverse lifting element in the same horizontal plane.