Integrated liquid intake and output quantity precision metering device for heart failure patient

Abstract

The application belongs to the technical field of medical apparatus and instruments, and discloses a heart failure patient integrated liquid in-out quantity precision metering device, which comprises a base, a fixing seat arranged at the top of the base, a display screen arranged at the top of the fixing seat and used for recording and displaying liquid in quantity, liquid out quantity and in-out quantity difference data, a support seat arranged at the front side of the fixing seat, and a first tray and a second tray arranged at the top of the support seat. The size of the first tray and the second tray can be changed through an adjusting mechanism, the first tray and the second tray can be stretched to obtain a large bearing space, and the device is suitable for various specifications of metering instruments without the need of replacing matched containers, thereby reducing the cost of hospital consumable procurement, eliminating the cumbersome operation problem caused by multiple times of weighing, and improving the metering precision after the adjustment is completed through double locking of the fixing structure and the limiting piece, so that the tray does not retract and shake when bearing, and the metering precision is improved.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and specifically relates to an integrated precise measurement device for fluid intake and output in patients with heart failure. Background Technology

[0002] 24-hour fluid intake and output in heart failure patients is a core indicator for assessing volume overload, adjusting diuretics, preventing acute pulmonary edema, and reducing readmission rates. Standardized and accurate measurement can reduce the risk of acute exacerbations of heart failure by more than 30%. An integrated fluid intake and output measurement device is specifically designed for monitoring heart failure patients. It eliminates the need for nurses and family members to manually estimate and record data. This single tool automatically calculates all fluid intake (wine, food, and intravenous fluids) and fluid excretion (urine, vomit, drainage fluid, and feces) throughout the day, allowing for real-time assessment of whether fluid accumulation in the body exceeds the recommended level and providing early warning of heart failure exacerbations.

[0003] In existing technologies, fluid intake and output measurement devices for heart failure use a fixed tray to hold measuring instruments such as drinking cups, food containers, and urine containers, relying on a weighing sensor under the tray to detect fluid intake and output. However, during use, the tray size of the integrated measuring device cannot be adjusted, making it incompatible with different sized collection containers. When large food containers such as large plates of vegetables or large bowls of porridge are needed, or when large-capacity fluid collection containers are required, the workspace is limited, and the food containers cannot be placed completely, requiring them to be weighed separately in stages. This increases the steps for caregivers and family members, affecting the effectiveness of the device.

[0004] Therefore, it is necessary to invent an integrated, precise fluid intake and output metering device for heart failure patients to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an integrated, precise fluid intake and output metering device for heart failure patients, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated precise measurement device for fluid intake and output for heart failure patients, comprising a base, a fixed seat on the top, and a display screen on the top of the fixed seat for recording and displaying fluid intake, fluid output, and intake-output difference data. A support base is set on the front side of the fixed base. The top of the support base is equipped with a first tray and a second tray for placing various inlet and outlet measuring instruments. An adjustment mechanism is provided on the first tray, the second tray, and the support base. The adjustment mechanism includes: The movable slot is formed inside the fixed ends of the first tray and the second tray. A movable block is movably connected inside the movable slot, and the movable block is connected to the movable ends of the first tray and the second tray respectively. The movable block is fixedly connected to the bottom of the movable ends of the first tray and the second tray, and is movably connected to the top of the base; A fixed structure is installed at the bottom of the movable block and on the support base to fix the movable block, the first tray, and the second tray after they have been moved.

[0007] Furthermore, a placement block is provided at the bottom of the support base for placing metering accessories. The first tray has one workstation, which is divided into two workstations by a telescopic baffle. The two ends of the telescopic baffle are fixedly connected to the fixed end and the movable end of the first tray, respectively. The movable ends of both the first and second trays are movably connected to the top of the support base. Gravity sensors are installed at the four corners of the first tray and at the four corners of the two workstations of the second tray to measure drinking water, food, and urine.

[0008] Furthermore, a separator is provided between the first tray and the second tray. The separator includes a sealing plate, a partition plate, and a magnetic block. The sealing plate is located in the middle of the first tray and the second tray, and the sealing plate is fixedly connected to the middle of the support base. The bottom of the sealing plate is located at the top of the placement block. The partition plate is movably connected inside the sealing plate. Magnetic blocks are provided on one side of the partition plate and on the top side of the fixed base. The magnetic blocks are magnetically attracted to each other.

[0009] Furthermore, mounting grooves are provided on both sides of the bottom of the support base. The movable block is L-shaped, with its bottom end located in the mounting groove. The fixing structure includes bolts, protrusions, a first spring, a fixing block, and a retaining member. Multiple threaded holes are provided at the bottom end of the movable block, and grooves corresponding to the multiple threaded holes are provided on the inner wall of the bottom end of the movable block. Bolts are provided on the front side of the support base, and the bolts pass through the support base and are threadedly connected to the threaded holes. Movable blocks are provided in the multiple grooves, and the bottom of the movable block is connected to the groove through the first spring. One end of the bolt extends into the groove and connects to the protrusion. The protrusion is located at the bottom of the fixing block, and a retaining member is provided above the fixing block located at the top of the protrusion.

[0010] Furthermore, the inner walls on both sides of the support base are provided with movable openings, the clamping member is located in the movable opening, the fixed block located on the top of the protrusion is located in the movable opening, and the top of the fixed block away from the protrusion is flush with the top surface of the movable block. The bottom side of the fixed block is provided with an inclined surface, and the protrusion is located at the inclined surface for pressing the fixed block to move.

[0011] Furthermore, the clamping component includes a clamping block, a limiting block, and a second spring. The clamping block is movably connected inside the movable opening. The top of the clamping block fits against the bottom of the first tray and the second tray. A groove is provided on the inner wall of the movable opening. The limiting block is movably connected inside the groove. One side of the limiting block is fixedly connected to the clamping block, and its bottom is fixedly connected to the inner wall of the groove through the second spring.

[0012] Furthermore, both sides of the top of the first tray and the second tray are provided with limiting members, which are symmetrically arranged with respect to the center of the support base. The limiting members include a connecting block, a plug rod, a fourth spring, a mounting block, and a compression spring. The connecting block is movably connected to the movable ends of the first tray and the second tray. The plug rod is fixedly connected to the bottom of the connecting block and is inserted into the movable ends of the first tray and the second tray. The mounting block is connected to the fixed ends of the first tray and the second tray through a compression spring. One side of the mounting block fits against one side of the connecting block, and the mounting block and the connecting block are connected by the fourth spring.

[0013] Furthermore, the top of the support base is provided with an installation groove, and a leveling structure is provided in the installation groove. The leveling structure includes a weight block, a gear and rack transmission structure and a connecting plate. The weight block is movably connected in the installation groove. The top of the weight block is provided with a gear and rack transmission structure. The gear and rack transmission structure is connected to the bottom of the movable end of the second tray through the connecting plate, and is used to move the second tray to drive the weight block to move in the opposite direction.

[0014] Furthermore, the weight is located in the middle of the mounting groove. The gear and rack transmission structure includes a first toothed plate, a second toothed plate, a gear, and a rotating rod. The first toothed plate is fixedly connected to the top of the weight, and the top of the first toothed plate meshes with the gear. The rotating rod is fixedly connected to the middle of the gear, and both ends of the rotating rod are rotatably connected to the inner wall of the mounting groove. The top of the gear meshes with the second toothed plate, and the top of the second toothed plate is fixedly connected to the connecting plate. Both the first toothed plate and the second toothed plate are movably connected to the inner wall of the mounting groove.

[0015] The technical effects and advantages of this invention are as follows: 1. This invention changes the size of the first and second trays through an adjustment mechanism, allowing the first and second trays to be stretched to obtain a large load-bearing space. It can simultaneously hold water cups, food boxes, and large-capacity urine containers, and is compatible with various sizes of measuring instruments. There is no need to change the matching containers, which reduces the hospital's consumable procurement costs. At the same time, it eliminates the cumbersome operation caused by weighing in multiple times, improves the convenience of use for nursing staff and family members. After adjustment, the fixed structure and limiting parts double locking prevent the trays from shrinking and shaking when bearing weight, thus improving the measurement accuracy.

[0016] 2. By increasing the size of the first tray through movement, this invention allows for the placement of a large-capacity urine container. Through the gear and rack transmission structure and the action of the weight block, the weight block moves towards the first tray, thereby increasing the weight at the first tray. This eliminates the need for manual adjustment of the counterweight, simplifying operation. It also eliminates the weight difference between the left and right sides of the support base, preventing the entire machine from tilting or shifting its center of gravity. This ensures uniform force on the four corner gravity sensors, improves the stability of weighing and measuring drinking water, food, and urine, and further enhances the accuracy of measurement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a structural diagram of the fixed base, support base, and display screen according to an embodiment of the present invention; Figure 3 This is a structural diagram of the first tray, the second tray, and the support base according to an embodiment of the present invention; Figure 4 This is a structural diagram of the first tray, second tray, separator, support base, and movable block according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the support base according to an embodiment of the present invention; Figure 6 This is a cross-sectional view of the abutment and movable block according to an embodiment of the present invention; Figure 7 This is a structural diagram of the first tray, the second tray, and the limiting member according to an embodiment of the present invention; Figure 8 This is an internal structural diagram of the support base and mounting groove according to an embodiment of the present invention; Figure 9 This is a structural diagram of the weight block and gear and rack transmission structure according to an embodiment of the present invention.

[0018] In the diagram: 1. Base; 2. Fixed seat; 3. Support seat; 4. First tray; 5. Second tray; 6. Moving block; 7. Movable block; 8. Placement block; 9. Telescopic baffle; 10. Sealing plate; 11. Divider plate; 12. Magnetic block; 13. Bolt; 14. Protrusion; 15. First spring; 16. Fixed block; 17. Clamping element; 18. Threaded hole; 19. Clamping block; 20. Limiting block; 21. Second spring; 22. Connecting block; 23. Insert rod; 24. Fourth spring; 25. Mounting block; 26. Weight block; 27. First toothed plate; 28. Second toothed plate; 29. ​​Gear. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0020] Example 1 This invention provides an integrated, precise fluid intake and output metering device for heart failure patients, such as... Figures 1 to 3As shown, the system includes a base 1, a fixed seat 2, a support seat 3, a first tray 4, a second tray 5, and an adjustment mechanism. The fixed seat 2 is fixedly connected to the top of the base 1. A display screen is installed on the top of the fixed seat 2 to record and display liquid inflow, outflow, and inflow-outflow difference data. The support seat 3 is fixedly connected to the top of the base 1 and is located in front of the fixed seat 2. The first tray 4 and the second tray 5 are installed on the top of the support seat 3 for placing various inflow and outflow measuring instruments. The adjustment mechanism is located on the first tray 4, the second tray 5, and the support seat 3. The adjustment mechanism includes... The system includes a movable groove, a movable block 6, a movable block 7, and a fixed structure. The movable groove is located within the fixed ends of the first tray 4 and the second tray 5. A movable block 6 is movably connected within the movable groove, connecting to the movable ends of the first tray 4 and the second tray 5 respectively, allowing the first tray 4 and the second tray 5 to extend and retract along the movable groove. The movable block 7 is fixedly connected to the bottom of the movable ends of the first tray 4 and the second tray 5, and is also movably connected to the top of the base 1, ensuring smooth and stable extension and retraction of the two trays. The fixed structure is located at the bottom of the movable block 7 and on the support base 3, used to fix the movable block 7, the first tray 4, and the second tray 5 after movement, and to lock and fix the trays, movable block 7, and movable block 6 after extension and retraction adjustment, maintaining the stable dimensions of the first tray 4 and the second tray 5 after adjustment. A placement block 8 is located at the bottom of the support base 3 for placing metering accessories, such as water cups, filters, and inner liners, allowing for organized storage and reducing cross-contamination and loss. The first tray 4 has one workstation, which is divided into two workstations by a telescopic baffle 9. The two ends of 9 are fixedly connected to the fixed end and the movable end of the first tray 4, respectively. It adapts to the expansion and contraction of the first tray 4 and the second tray 5, and adapts to the space size after the tray is lengthened. The movable ends of the first tray 4 and the second tray 5 are both movably connected to the top of the support base 3. The fixed ends of the first tray 4 and the second tray 5 are both fixedly connected to the top of the support base 3. Gravity sensors are installed at the four corners of the first tray 4 and the four corners of the two workstations of the second tray 5. They can perform high-precision weighing and collection of the objects carried by the trays, and are used to measure drinking water, food and urine.

[0021] Two independent workstations are separated by a telescopic baffle 9. One workstation holds a water cup, and the weight difference is used by a gravity sensor to calculate the patient's single and cumulative water intake. The other workstation holds a food box containing vegetables, fruits, porridge, soup, and other ingredients. By combining the weight difference before and after eating with a database of the moisture content of the ingredients, the hidden water intake from food is automatically calculated, achieving accurate statistics of all intake. The second tray 5 always maintains an independent output measurement workstation, used to hold a urine container. The weight difference of urine before and after is collected by gravity sensors at the four corners, and the urine volume is automatically calculated to achieve accurate accumulation of urine output over 24 hours. When large food containers, large-capacity tableware, or large-capacity urinals need to be placed, the locking state of the fixed structure is released, and the movable end of the first tray 4 or the second tray 5 is manually pulled, causing the moving block 6 to slide along the movable groove. The telescopic baffle 9 extends simultaneously, and the moving block 7 slides on the top surface of the base 1, thereby increasing the overall length and load-bearing area of ​​the tray to accommodate large-volume measuring instruments. After adjusting to the appropriate size, the movable block 7 and the moving block 6 are locked by the fixed structure to keep the tray size fixed and prevent the tray from slipping or loosening during weighing, which could cause measurement errors. The inflow and outflow weight signals collected by all gravity sensors are uniformly transmitted to the display screen. The system automatically completes data conversion, classification, and accumulation, and displays the total inflow, total outflow, and inflow-outflow difference in real time. It can also store, record, and provide early warning prompts, realizing integrated, high-precision, and adaptive full-scenario measurement of fluid intake and output for heart failure patients.

[0022] Example 2 This embodiment provides an integrated, precise fluid intake and output metering device for heart failure patients. The difference between this embodiment and Embodiment 1 is that: Figures 1 to 3 As shown, a separator is provided between the first tray 4 and the second tray 5 to achieve physical isolation, sealing, and positioning of the inlet and outlet metering areas, preventing cross-contamination and metering interference between the two areas. The separator includes a sealing plate 10, a separator 11, and a magnetic block 12. The sealing plate 10 is located in the middle of the first tray 4 and the second tray 5, and is fixedly connected to the middle of the support base 3. The bottom of the sealing plate 10 is located at the top of the placement block 8, which can seal the gap between the upper and lower areas to prevent liquid leakage and residue from falling into the equipment. At the same time, it can completely isolate the bottom of the two areas. The separator 11 is movably connected inside the sealing plate 10, which can be vertically raised, lowered, and extended along the sealing plate 10 to meet the needs of tray extension and adjustment and workstation switching. A magnetic block 12 is provided on one side of the separator 11 and the top side of the fixed base 2. The magnetic blocks 12 are magnetically attracted to each other to fix the position of the separator 11.

[0023] After the measuring instrument is placed on the first tray 4, the partition plate 11 is pulled upwards, extending upwards along the movable cavity inside the sealing plate 10 until the partition plate 11 and the corresponding magnetic block 12 of the fixing base 2 are magnetically attracted to each other, thus completing the vertical fixation of the partition plate 11. At this time, the extended partition plate 11, together with the middle sealing plate 10, completely physically isolates and seals the inlet measuring area of ​​the first tray 4 from the outlet measuring area of ​​the second tray 5, preventing urine, waste liquid, and stains from leaking from the outlet area into the inlet area, avoiding contamination of water cups and food containers, and preventing interference between the operation and instrument placement in the two areas, ensuring independent and accurate measurement of inlet and outlet. After the measurement is completed, the partition plate 11 is pushed downwards to retract, the magnetic block 12 disengages from the attracted state, and the partition plate 11 moves back to its original position, preventing the partition plate 11 from obstructing the placement of the next instrument.

[0024] Example 3 This embodiment provides an integrated, precise fluid intake and output measurement device for heart failure patients. The difference between this embodiment and Embodiments 1 and 2 is that: Figures 4 to 6 As shown, mounting grooves are provided on both sides of the bottom of the support base 3. The movable block 7 is L-shaped, and the bottom end of the movable block 7 is located in the mounting groove. The fixing structure includes bolt 13, protrusion 14, first spring 15, fixing block 16 and abutment 17. Multiple threaded holes 18 are provided at the bottom end of the movable block 7. Grooves corresponding to the multiple threaded holes 18 are provided on the inner wall of the bottom end of the movable block 7. Bolt 13 is provided on the front side of the support base 3. Bolt 13 passes through the support base 3 and is threadedly connected to the threaded holes 18. Movable blocks 7 are provided in multiple grooves. The bottom of the movable block 7 is fixedly connected to the first spring 15. The bottom of the first spring 15 is fixedly connected to the inner wall of the bottom of the groove. The bottom of the movable block 7 is connected to the groove through the first spring 15. One end of bolt 13 extends into the groove and connects to protrusion 14. Protrusion 14 is located at the bottom of fixing block 16, and abutment 17 is provided above fixing block 16 located at the top of protrusion 14. The inner walls of both sides of the support base 3 are provided with movable openings. The clamping member 17 is located in the movable opening. The fixing block 16 located on the top of the protrusion 14 is located in the movable opening, and the top of the fixing block 16 away from the protrusion 14 is flush with the top surface of the movable block 7. The bottom side of the fixing block 16 is provided with an inclined surface, and the protrusion 14 is located at the inclined surface to squeeze the fixing block 16 to move. The clamping member 17 includes a clamping block 19, a limiting block 20 and a second spring 21. The clamping block 19 is movably connected in the movable opening. The top of the clamping block 19 fits against the bottom of the first tray 4 and the second tray 5. The inner wall of the movable opening is provided with a sliding groove. The limiting block 20 is movably connected in the sliding groove. One side of the limiting block 20 is fixedly connected to the clamping block 19 to limit the position of the clamping block 19, and its bottom is fixedly connected to the inner wall of the sliding groove through the second spring 21.

[0025] When the dimensions of the first tray 4 and the second tray 5 need to be adjusted, by rotating the bolt 13, the protrusion 14 no longer presses against the inclined surface of the fixing block 16. When the bolt 13 and the protrusion 14 move out of the groove, the first spring 15 extends and retracts, causing the fixing block 16 to move into the groove. The fixing block 16 no longer pushes the abutment block 19 to move, causing the abutment block 19 to move downward. The limiting block 20 moves downward in the slide groove, and the second spring 21 compresses, so that the top of the abutment block 19 no longer presses against the bottom of the first tray 4 and the second tray 5. At this time, the movable ends of the first tray 4 and the second tray 5 can be pulled to adjust the dimensions. After the trays are adjusted to the required length, the bolt 13 is inserted into the corresponding threaded hole 18 and rotated. Bolt 13 feeds inward through its threaded engagement with threaded hole 18, causing the end protrusion 14 to extend into the groove simultaneously. Protrusion 14 presses against the inclined surface at the bottom of fixing block 16, and the inclined surface pushes fixing block 16 to extend laterally outward towards the movable opening. First spring 15 is stretched, causing fixing block 16 to push pressing block 19 upward, causing pressing block 19 to drive limiting block 20 to move upward along the slide groove. Second spring 21 is stretched, causing the top of pressing block 19 to fit and fix with the bottom of first tray 4 and second tray 5. At this time, movable block 7, moving block 6, first tray 4 and second tray 5 are locked as a whole and cannot slide back and forth, thus achieving stable fixing of the tray adjustment size.

[0026] Example 4 This embodiment provides an integrated, precise fluid intake and output metering device for heart failure patients. The difference between this embodiment and embodiments 1-3 is that: Figure 4 , Figure 5 , Figure 7 As shown, both sides of the top of the first tray 4 and the second tray 5 are provided with limiting components, which are symmetrically arranged with respect to the center of the support base 3. The limiting components include a connecting block 22, a plug rod 23, a fourth spring 24, a mounting block 25, and a compression spring. The connecting block 22 is movably connected to the movable end of the first tray 4 and the second tray 5. The plug rod 23 is fixedly connected to the bottom of the connecting block 22. The movable end of the first tray 4 and the second tray 5 is provided with a slot, and the plug rod 23 is inserted into the slot. The fixed end of the first tray 4 and the second tray 5 is provided with a mounting block 25. The fixed end of the first tray 4 and the second tray 5 is provided with a mounting hole, and the compression spring is fixedly connected to the mounting hole. The compression spring is fixedly connected to the mounting block 25. One side of the mounting block 25 is attached to one side of the connecting block 22. The fourth spring 24 is fixedly connected to the mounting block 25 and is fixedly connected to the connecting block 22.

[0027] When it is necessary to adjust the size of the first tray 4 and the second tray 5, first move the mounting block 25 and the connecting block 22 upwards to disengage the insertion rod 23 from the slot, and the compression spring is stretched. At this time, the movable ends of the first tray 4 and the second tray 5 are no longer fixed. Then stretch the movable ends of the first tray 4 and the second tray 5 to adjust the size. After the adjustment is completed, move the connecting block 22 to stretch the fourth spring 24, aligning the insertion rod 23 with the slots of the movable ends of the first tray 4 and the second tray 5. Move the connecting block 22 and the mounting block 25 downwards to insert the insertion rod 23 into the slot. Under the action of the compression spring, the connecting block 22 and the mounting block 25 are located at the movable end and the fixed end of the first tray 4 and the second tray 5, respectively. This can fix the first tray 4 and the second tray 5 after the size is adjusted, restricting the movable ends of the trays from shaking, shifting, or slightly lifting, and preventing the zero point drift of the gravity sensor caused by the deformation of the trays under force, thus ensuring the accuracy and stability of the inlet and outlet weighing measurement.

[0028] Example 5 This embodiment provides an integrated, precise fluid intake and output metering device for heart failure patients. The difference between this embodiment and embodiments 1-4 is that: Figures 8 to 9 As shown, the top of the support base 3 is also provided with an installation groove, and a leveling structure is provided in the installation groove. The leveling structure includes a weight block 26, a gear and rack transmission structure, and a connecting plate. The weight block 26 is movably connected in the installation groove. The top of the weight block 26 is provided with a gear and rack transmission structure, which is connected to the bottom of the movable end of the second tray 5 through the connecting plate. It is used to move the second tray 5 to drive the weight block 26 to move in the opposite direction. The weight block 26 is located in the middle of the installation groove. The gear and rack transmission structure includes a first toothed plate 27, a second toothed plate 28, a gear 29, and a rotating rod. The first toothed plate 27 is fixedly connected to the top of the weight block 26. The top of the first toothed plate 27 meshes with the gear 29. The rotating rod is fixedly connected to the middle of the gear 29. Both ends of the rotating rod are rotatably connected to the inner wall of the installation groove. The top of the gear 29 meshes with the second toothed plate 28. The top of the second toothed plate 28 is fixedly connected to the connecting plate. Both the first toothed plate 27 and the second toothed plate 28 are movably connected to the inner wall of the installation groove.

[0029] When the second tray 5 slides outward and expands its load-bearing size to accommodate heavy-duty equipment such as large-capacity urinals, the movable end of the second tray 5 drives the second toothed plate 28 to move horizontally in the same direction through the connecting plate. During the sliding process, the second toothed plate 28 drives the meshing gear 29 to rotate around the rotating rod. The gear 29 meshes in the opposite direction to drive the bottom first toothed plate 27 to make a reverse horizontal displacement, which in turn drives the weight block 26 to move in the opposite direction to the second tray 5 inside the mounting groove. The weight block 26 slides towards the unloaded side of the equipment to balance the load-bearing weight on both sides of the support base 3, avoiding problems such as tilting, warping, and center of gravity shift caused by excessive load on one side of the equipment. When the second tray 5 retracts inward to reset and reduces its load-bearing size, the second toothed plate 28 moves back synchronously with the tray. Through the reversing transmission of the gear 29, it drives the first toothed plate 27 and the weight block 26 to reset in the opposite direction and return to the initial position centered in the mounting slot. This is suitable for lightweight use scenarios of small-sized appliances, ensuring that the center of gravity of the equipment is always centered. It effectively avoids problems such as zero drift and value jump caused by the gravity sensor due to the tilt of the body and uneven force, and further improves the stability and accuracy of the equipment's inlet and outlet weighing measurement.

[0030] Working principle of this invention: Reference Figures 1 to 9 As shown, during use, a water cup is placed in one station of the first tray 4. The weight difference of the gravity sensor is used to calculate the patient's single and cumulative water intake. A food box is placed in the other station to hold vegetables, fruits, porridge, and other ingredients. By combining the weight difference before and after eating with the moisture content database of the ingredients, the hidden water intake of the food is automatically calculated to achieve accurate statistics of all intake. Then, the partition plate 11 is moved upward so that the partition plate 11 is moved to the top side of the fixed seat 2. The position of the partition plate 11 is fixed by magnetic adsorption of the magnetic block 12 to achieve a sealed separation between the first tray 4 and the second tray 5. Then, a urine bucket is placed in the station of the second tray 5. The weight difference of the urine before and after is collected by the four corner gravity sensors, and the urine volume is automatically calculated to achieve accurate accumulation of 24-hour urine output.

[0031] When large food containers, large-capacity tableware, or large-capacity urinals need to be placed, remove the utensils from each workstation, move the partition plate 11 downwards to separate the magnetic blocks 12, and they will no longer be magnetically attracted. After the partition plate 11 returns to its original position, clean each workstation. Then rotate the bolt 13 so that the protrusion 14 no longer presses against the inclined surface of the fixing block 16. The first spring 15 extends and retracts. When the bolt 13 and the protrusion 14 move out of the groove, the fixing block 16 moves into the groove. The fixing block 16 no longer pushes the pressing block 19 to move, causing the pressing block 19 to move downwards. The limiting block 20 moves downwards in the slide groove, and the second spring 21 compresses, so that the top of the pressing block 19 no longer presses against the first tray 4 and the second tray. 5. Move the mounting block 25 and connecting block 22 upwards to disengage the insertion rod 23 from the slot. The compression spring is stretched, and the movable ends of the first tray 4 and the second tray 5 are no longer fixed. Stretch the movable ends of the first tray 4 and the second tray 5 to adjust their size. After the tray is adjusted to the required length, move the connecting block 22 to stretch the fourth spring 24, aligning the insertion rod 23 with the slot of the movable end of the first tray 4 and the second tray 5. Move the connecting block 22 and mounting block 25 downwards to insert the insertion rod 23 into the slot. Under the action of the compression spring, the connecting block 22 and the mounting block 25 are located at the movable end and the fixed end of the first tray 4 and the second tray 5, respectively. After fixing the dimensions of the first tray 4 and the second tray 5, the bolt 13 is inserted into the corresponding threaded hole 18. The bolt 13 is rotated and fed inward through the engagement with the threaded hole 18, which drives the end protrusion 14 to extend into the groove at the same time. The protrusion 14 presses against the inclined surface at the bottom of the fixing block 16. The inclined surface squeezes and pushes the fixing block 16 to extend laterally in the direction of the outward movable opening. The first spring 15 is stretched, which pushes the fixing block 16 upward to push the clamping block 19. The clamping block 19 drives the limiting block 20 to move upward along the slide. The second spring 21 is stretched, which makes the top of the clamping block 19 fit and fix with the bottom of the first tray 4 and the second tray 5. At this time, the movable block 7, the moving block 6, the first tray 4 and the second tray 5 are locked as a whole.

[0032] When the movable end of the second tray 5 moves horizontally in the same direction via the connecting plate, the second toothed plate 28 drives the meshing gear 29 to rotate around the rotating rod during the sliding process. The gear 29 meshes in the opposite direction to drive the bottom first toothed plate 27 to make a reverse horizontal displacement, thereby driving the weight block 26 to move in the mounting groove and form a opposite movement with the second tray 5. The weight block 26 slides towards the unloaded side of the equipment to balance the load on both sides of the support base 3. Then, the measuring instruments such as water cups, food trays and urine buckets to be measured are placed on the work positions of the first tray 4 and the second tray 5. The partition plate 11 is moved and fixed by the magnetic block 12 to separate the components. The gravity sensor is used for detection, and the data is recorded and displayed in real time on the display screen.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A heart failure patient integrated liquid intake and output precise metering device, characterized in that, include: The base (1) is connected to one side of the top of the base (1). The top of the fixed seat (2) is equipped with a display screen for recording and displaying liquid inflow, liquid outflow and inflow difference data. A support base (3) is set in front of the fixed base (2). The top of the support base (3) is provided with a first tray (4) and a second tray (5) for placing various inlet and outlet measuring instruments. An adjustment mechanism is provided on the first tray (4), the second tray (5), and the support base (3), and the adjustment mechanism includes: The movable slot is opened in the fixed ends of the first tray (4) and the second tray (5), and a movable block (6) is movably connected in the movable slot. The movable block (6) is connected to the movable ends of the first tray (4) and the second tray (5) respectively. The movable block (7) is fixedly connected to the bottom of the movable ends of the first tray (4) and the second tray (5), and the movable block (7) is movably connected to the top of the base (1); A fixed structure is set on the bottom of the movable block (7) and the support base (3) to fix the movable block (7), the first tray (4) and the second tray (5) after they are moved.

2. The integrated fluid ingress and egress precision metering device for heart failure patients of claim 1, wherein: The support base (3) has a placement block (8) at the bottom for placing metering accessories. The first tray (4) has one workstation. The first tray (4) is divided into two workstations by a telescopic baffle (9). The two ends of the telescopic baffle (9) are fixedly connected to the fixed end and the movable end of the first tray (4) respectively. The movable ends of the first tray (4) and the second tray (5) are movably connected to the top of the support base (3). Gravity sensors are provided at the four corners of the first tray (4) and the four corners of the two workstations of the second tray (5) for measuring drinking water, food and urine.

3. The integrated precise fluid intake and output metering device for heart failure patients according to claim 2, characterized in that: A separator is provided between the first tray (4) and the second tray (5). The separator includes a sealing plate (10), a separator (11), and a magnetic block (12). The sealing plate (10) is located in the middle between the first tray (4) and the second tray (5), and the sealing plate (10) is fixedly connected to the middle of the support base (3). The bottom of the sealing plate (10) is located at the top of the placement block (8). The separator (11) is movably connected inside the sealing plate (10). A magnetic block (12) is provided on one side of the separator (11) and on the top side of the fixed base (2). The magnetic blocks (12) are magnetically attracted to each other.

4. The integrated precise fluid intake and output metering device for heart failure patients according to claim 3, characterized in that: The support base (3) has mounting grooves on both sides of its bottom. The movable block (7) is L-shaped and its bottom end is located in the mounting groove. The fixing structure includes a bolt (13), a protrusion (14), a first spring (15), a fixing block (16), and a clamping member (17). The bottom end of the movable block (7) has multiple threaded holes (18). The inner wall of the bottom end of the movable block (7) has grooves corresponding to the multiple threaded holes (18). The front side of the support base (3) is provided with a bolt (13). The bolt (13) passes through the support base (3) and is threaded to the threaded hole (18). The multiple grooves are provided with movable blocks (7). The bottom of the movable block (7) is connected to the groove through the first spring (15). One end of the bolt (13) extends into the groove and connects to the protrusion (14). The protrusion (14) is located at the bottom of the fixing block (16), and a clamping member (17) is provided above the fixing block (16) located at the top of the protrusion (14).

5. The integrated precise fluid intake and output metering device for heart failure patients according to claim 4, characterized in that: The inner walls on both sides of the support base (3) are provided with movable openings. The clamping member (17) is located in the movable opening. The fixing block (16) located on the top of the protrusion (14) is located in the movable opening. The top of the fixing block (16) away from the protrusion (14) is flush with the top surface of the movable block (7). The bottom side of the fixing block (16) is provided with an inclined surface. The protrusion (14) is located at the inclined surface and is used to squeeze the fixing block (16) to move.

6. The integrated precise fluid intake and output metering device for heart failure patients according to claim 5, characterized in that: The clamping member (17) includes a clamping block (19), a limiting block (20) and a second spring (21). The clamping block (19) is movably connected in the movable opening. The top of the clamping block (19) is in contact with the bottom of the first tray (4) and the second tray (5). A sliding groove is provided on the inner wall of the movable opening. The limiting block (20) is movably connected in the sliding groove. One side of the limiting block (20) is fixedly connected to the clamping block (19), and its bottom is fixedly connected to the inner wall of the sliding groove through the second spring (21).

7. The integrated precise fluid intake and output metering device for heart failure patients according to claim 6, characterized in that: Both sides of the top of the first tray (4) and the second tray (5) are provided with limiting members. The limiting members are symmetrically arranged with respect to the center of the support base (3). The limiting members include a connecting block (22), a plug rod (23), a fourth spring (24), a mounting block (25), and a compression spring. The connecting block (22) is movably connected to the movable ends of the first tray (4) and the second tray (5). The plug rod (23) is fixedly connected to the bottom of the connecting block (22). The plug rod (23) is inserted into the movable ends of the first tray (4) and the second tray (5). The mounting block (25) is connected to the fixed ends of the first tray (4) and the second tray (5) by a compression spring. One side of the mounting block (25) is in contact with one side of the connecting block (22). The mounting block (25) and the connecting block (22) are connected by the fourth spring (24).

8. The integrated precise fluid intake and output metering device for heart failure patients according to claim 7, characterized in that: The support base (3) is also provided with an installation groove at the top. The installation groove is provided with a leveling structure. The leveling structure includes a weight block (26), a gear and rack transmission structure and a connecting plate. The weight block (26) is movably connected in the installation groove. The top of the weight block (26) is provided with a rack transmission structure. The gear and rack transmission structure is connected to the bottom of the movable end of the second tray (5) through the connecting plate. It is used for the movement of the second tray (5) to drive the weight block (26) to move in opposite directions.

9. The integrated precise fluid intake and output metering device for heart failure patients according to claim 8, characterized in that: The weight block (26) is located in the middle of the mounting groove. The gear and rack transmission structure includes a first toothed plate (27), a second toothed plate (28), a gear (29), and a rotating rod. The first toothed plate (27) is fixedly connected to the top of the weight block (26). The top of the first toothed plate (27) meshes with the gear (29). The rotating rod is fixedly connected to the middle of the gear (29). Both ends of the rotating rod are rotatably connected to the inner wall of the mounting groove. The top of the gear (29) meshes with the second toothed plate (28). The top of the second toothed plate (28) is fixedly connected to the connecting plate. Both the first toothed plate (27) and the second toothed plate (28) are movably connected to the inner wall of the mounting groove.

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