A central venous pressure measuring device

Abstract

The utility model discloses a central venous pressure measuring device belongs to central venous pressure measurement technical field, including base, the upper surface fixed connection of base has the limit cylinder, the inner wall sliding connection of limit cylinder has the lift column, the outer surface fixed connection of lift column has the support plate, and the upper portion of support plate is provided with infusion tube, and the outer surface fixed connection of lift column has four groups rubber limit block. This central venous pressure measuring device, through setting lift column, the outer surface of lift column is provided with four groups rubber limit block, and these rubber limit blocks are contacted with the outer surface of infusion tube, and at the same time, the support block on support plate is set up to limit three -way valve, and the limit frame and extruding piece are limited to measuring tube, and this multidirectional limit structure effectively solves the problem that the pipeline is easy to shake due to more pipeline and no auxiliary limit function mentioned in background art, and the stable pipeline state can reduce the influence caused by shaking on the accuracy of measurement result.

Description

Technical Field

[0001] This utility model belongs to the field of central venous pressure measurement technology, and in particular relates to a central venous pressure measurement device. Background Technology

[0002] Central venous pressure refers to the pressure in the right atrium and the thoracic segments of the superior and inferior vena cava. It reflects the heart's pumping capacity for venous return and the amount of venous return. It is an important indicator for assessing a patient's blood volume, cardiac function, and vascular tone. Central venous pressure measurement is an important method for assessing cardiovascular function, and it is mainly used to measure the pressure at the point where the superior and inferior vena cava enter the right atrium.

[0003] The existing utility model with authorization announcement number CN217186107U discloses a medical central venous pressure detection device, including an infusion stand and a fixing plate. An infusion bottle is movably installed on the upper end of the infusion stand, and a first infusion tube is provided at the lower end of the infusion bottle. A three-way valve is fixedly connected to the left end of the first infusion tube, a second infusion tube is fixedly connected to the left end of the three-way valve, a syringe is fixedly connected to the left end of the second infusion tube, and a third infusion tube is fixedly connected to the front end of the three-way valve.

[0004] The above technical solution, through structures such as threaded tubes, threaded columns, limiting rings, and measuring rulers, achieves a zero-point that is easy to adjust. After the patient lies flat, the patient's arm is fixed by the device. When the threaded tube is rotated by the handle, the threaded tube and the limiting ring can be raised. Due to the design of the limiting ring, the measuring ruler will rise within the T-slot of the fixed plate, and the zero point can be adjusted to the midline of the armpit, thus facilitating the adjustment of the zero point. However, during the use of the above technical solution, because the measuring device has many pipes and does not have the function of pipe auxiliary limiting, the pipes are prone to shaking during the measurement process, which can easily affect the accuracy of the measurement results, resulting in a lack of practicality. Utility Model Content

[0005] The purpose of this invention is to solve the problem of inconvenience in limiting multiple pipelines in the existing technology, and to propose a central venous pressure measuring device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A central venous pressure measuring device includes a base, a limiting cylinder fixedly connected to the upper surface of the base, a lifting column slidably connected to the inner wall of the limiting cylinder, a support plate fixedly connected to the outer surface of the lifting column, an infusion tube disposed above the support plate, four sets of rubber limiting blocks fixedly connected to the outer surface of the lifting column, the inner wall of each set of rubber limiting blocks contacting the outer surface of the infusion tube, a three-way valve disposed above the support plate, two support blocks fixedly connected to the upper surface of the support plate, the outer surface of each support block contacting the outer surface of the three-way valve, a limiting frame fixedly connected to the upper surface of the support plate, a measuring tube disposed above the support plate, the outer surface of the measuring tube contacting the inner wall of the limiting frame, a screw threadedly connected to the inner wall of the limiting frame, a squeezing block rotatably connected to the left end of the screw, and the outer surface of the squeezing block slidably connected to the inner wall of the limiting frame.

[0008] Preferably, four fixing blocks are fixedly connected to the outer surface of the base, and each fixing block is fixedly connected to a caster wheel on its bottom surface.

[0009] Preferably, four reinforcing blocks are fixedly connected to the outer surface of the limiting cylinder, and the bottom surface of each reinforcing block is fixedly connected to the upper surface of the base.

[0010] Preferably, a fixing plate is fixedly connected to the upper surface of the lifting column, and two hooks are fixedly connected to the bottom surface of the fixing plate.

[0011] Preferably, a multi-stage electric telescopic rod is fixedly connected to the inner bottom wall of the limiting cylinder, and the telescopic end of the multi-stage electric telescopic rod is fixedly connected to the bottom surface of the lifting column.

[0012] Preferably, a measuring ruler is snapped into the inside of the limiting frame, and a rotating block is fixedly connected to the right end of the screw.

[0013] Preferably, a sponge pad is fixedly connected to the outer surface of the extrusion block, and the outer surface of the sponge pad is in contact with the outer surface of the measuring tube.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] By setting up a lifting column with four sets of rubber limiting blocks on its outer surface, these rubber limiting blocks contact the outer surface of the infusion tube. At the same time, a support block on the support plate limits the three-way valve, and the limiting frame and squeezing block limit the measuring tube. This multi-directional limiting structure effectively solves the problem mentioned in the background technology that the pipeline is prone to shaking due to the large number of pipelines and the lack of auxiliary limiting function. The stable pipeline state can reduce the impact of shaking on the accuracy of the measurement results, making the measurement results more accurate and reliable, thereby improving the practicality of the entire measuring device. In actual clinical use, it can stably measure central venous pressure, and medical staff can obtain the patient's central venous pressure data more accurately. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the base of this utility model;

[0017] Figure 2 This is a three-dimensional cross-sectional structural diagram of the limiting cylinder of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the support plate of this utility model;

[0019] Figure 4 This is a three-dimensional structural schematic diagram of the extrusion block of this utility model, viewed from the right side in cross-section.

[0020] In the diagram: 1. Base; 2. Limiting cylinder; 3. Lifting column; 4. Fixing block; 5. Casters; 6. Fixing plate; 7. Hook; 8. Reinforcing block; 9. Multi-stage electric telescopic rod; 10. Support plate; 11. Limiting frame; 12. Infusion tube; 13. Rubber limiting block; 14. Three-way valve; 15. Support block; 16. Measuring ruler; 17. Measuring tube; 18. Squeezing block; 19. Sponge pad; 20. Rotating block; 21. Screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4This utility model is a central venous pressure measuring device, including a base 1. A limiting cylinder 2 is fixedly connected to the upper surface of the base 1. A lifting column 3 is slidably connected to the inner wall of the limiting cylinder 2. Four fixing blocks 4 are fixedly connected to the outer surface of the base 1. A caster wheel 5 is fixedly connected to the bottom surface of each fixing block 4. The caster wheel 5 enables the entire central venous pressure measuring device to have good mobility. In hospitals and other places, medical staff can easily move the device to different beds or operating areas as needed. The four fixing blocks 4 play a role in firmly connecting the caster wheel 5 and the base 1, ensuring the stability of the connection between the caster wheel 5 and the base 1 during the movement.

[0023] Furthermore, in this embodiment of the present invention, a support plate 10 is fixedly connected to the outer surface of the lifting column 3, and an infusion tube 12 is arranged above the support plate 10. Four sets of rubber limiting blocks 13 are fixedly connected to the outer surface of the lifting column 3, and four reinforcing blocks 8 are fixedly connected to the outer surface of the limiting cylinder 2. The bottom surface of each reinforcing block 8 is fixedly connected to the upper surface of the base 1. The presence of the reinforcing blocks 8 enhances the firmness of the connection between the limiting cylinder 2 and the base 1. During the use of the device, when the lifting column 3 slides in the limiting cylinder 2 or is subjected to external force, the reinforcing blocks 8 can prevent the limiting cylinder 2 from shaking or shifting relative to the base 1, thereby ensuring the stability of the entire device structure and facilitating accurate central venous pressure measurement.

[0024] The inner wall of each rubber limiting block 13 is in contact with the outer surface of the infusion tube 12. A three-way valve 14 is provided above the support plate 10. Two support blocks 15 are fixedly connected to the upper surface of the support plate 10. A fixing plate 6 is fixedly connected to the upper surface of the lifting column 3. Two hooks 7 are fixedly connected to the bottom surface of the fixing plate 6. The fixing plate 6 provides a stable installation base for the hooks 7. The hooks 7 can be used to hang items related to central venous pressure measurement, such as infusion bags. In this way, when measuring, the relevant items can be hung on the device in an orderly manner, which is convenient for medical staff to operate and makes the entire operating area more tidy and orderly.

[0025] The outer surface of each support block 15 is in contact with the outer surface of the three-way valve 14. The upper surface of the support plate 10 is fixedly connected to the limit frame 11. The inner bottom wall of the limit cylinder 2 is fixedly connected to the multi-stage electric telescopic rod 9. The telescopic end of the multi-stage electric telescopic rod 9 is fixedly connected to the bottom surface of the lifting column 3. The setting of the multi-stage electric telescopic rod 9 makes the lifting operation of the lifting column 3 more convenient and accurate. Medical staff can adjust the height of the lifting column 3 by controlling the multi-stage electric telescopic rod 9 according to the actual measurement needs, and then adjust the height of the support plate 10 to adapt to different measurement scenarios or patient positions, which helps to improve the accuracy of measurement.

[0026] Furthermore, a measuring tube 17 is provided above the support plate 10. The outer surface of the measuring tube 17 is in contact with the inner wall of the limiting frame 11. A screw 21 is threadedly connected to the inner wall of the limiting frame 11. A measuring ruler 16 is snapped into the inside of the limiting frame 11. A rotating block 20 is fixedly connected to the right end of the screw 21. The presence of the measuring ruler 16 facilitates medical staff to measure and read the central venous pressure value in the measuring tube 17, making the measurement results more intuitive. The setting of the rotating block 20 makes it easier for medical staff to rotate the screw 21. The torque can be applied more easily through the rotating block 20, which facilitates the adjustment of the position of the squeezing block 18 to fix the measuring tube 17 and other operations.

[0027] In one implementation of this utility model, a pressing block 18 is rotatably connected to the left end of the screw 21. The outer surface of the pressing block 18 is slidably connected to the inner wall of the limiting frame 11. A sponge pad 19 is fixedly connected to the outer surface of the pressing block 18. The outer surface of the sponge pad 19 is in contact with the outer surface of the measuring tube 17. The sponge pad 19 can buffer and protect the measuring tube 17. When the pressing block 18 is pushed by the screw 21 to fix the measuring tube 17, the sponge pad 19 can prevent the pressing block 18 from causing hard compression to the measuring tube 17 and damaging the measuring tube 17. At the same time, it can also ensure that the measuring tube 17 is stably fixed in the limiting frame 11, ensuring the accuracy of the measurement.

[0028] In use, the operator first connects the multi-stage electric telescopic rod 9 to the power supply. The base 1 provides stable support for the entire device. The four fixing blocks 4 on the base 1 are connected to casters 5 for easy movement of the device. The multi-stage electric telescopic rod 9 inside the limiting cylinder 2 can extend and retract, and its telescopic end is fixed to the bottom surface of the lifting column 3. The height of the lifting column 3 is adjusted by extending and retracting the multi-stage electric telescopic rod 9. The lifting column 3 can drive the support plate 10 to rise and fall until it is adjusted to a suitable height for convenient measurement. The rubber limiting block 13 fixed on the surface of the lifting column 3 can conveniently limit the infusion tube 12. At the same time, the rubber limiting block 13 is made of rubber and has a certain degree of flexibility. When fixing the infusion tube 12, the operator can pry open the two rubber limiting blocks 13 and place the infusion tube 12 inside. The rubber limiting blocks 13 can also reset themselves after being pried open, making it convenient for the operator to limit the infusion tube 12. The two support blocks 15 on the support plate 10 provide support. Connect the three-way valve 14, then connect the infusion bottle to the infusion tubing 12. Insert the infusion tubing 12 into one end of the three-way valve 14, and simultaneously insert the measuring tube 17 into the upper end of the three-way valve 14. Then, use the squeezing block 18, the sponge pad 19, and the screw 21 to firmly compress the measuring tube 17 and keep it in a vertical position. The limiting frame 11 is made of a transparent frame to facilitate the staff to view the measurement values. Finally, connect the other end of the three-way valve 14 to the patient's central venous catheter. Then, use the selector switch of the three-way valve 14 to select the connection between the infusion tubing 12 and the measuring tube 17, so that the measuring tube 17 is injected with normal saline. Finally, use the selector switch of the three-way valve 14 to select the connection between the measuring tube 17 and the central venous catheter, so that the measuring tube 17 and the central venous catheter form a connecting tube. The central venous pressure can be obtained by measuring the height of the normal saline in the measuring tube 17. At the same time, the measuring ruler 16 on the limiting frame 11 can be removed to measure the data of the measuring tube 17.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A central venous pressure measuring device, characterized in that, include: A base (1) is fixedly connected to a limiting cylinder (2) on its upper surface, and a lifting column (3) is slidably connected to the inner wall of the limiting cylinder (2). A support plate (10) is fixedly connected to the outer surface of the lifting column (3). An infusion tube (12) is provided above the support plate (10). Four sets of rubber limiting blocks (13) are fixedly connected to the outer surface of the lifting column (3). The inner wall of each set of rubber limiting blocks (13) is in contact with the outer surface of the infusion tube (12). A three-way valve (14) is provided above the support plate (10). Two support blocks (15) are fixedly connected to the upper surface of the support plate (10). The outer surface of each support block (15) is in contact with the outer surface of the three-way valve (14). A limiting frame (11) is fixedly connected to the upper surface of a support plate (10); a measuring tube (17) is provided above the support plate (10), the outer surface of the measuring tube (17) is in contact with the inner wall of the limiting frame (11), a screw (21) is threadedly connected to the inner wall of the limiting frame (11), and a pressing block (18) is rotatably connected to the left end of the screw (21), the outer surface of the pressing block (18) is slidably connected to the inner wall of the limiting frame (11).

2. The central venous pressure measuring device according to claim 1, characterized in that: The outer surface of the base (1) is fixedly connected to a fixing block (4), and the bottom surface of the fixing block (4) is fixedly connected to a universal wheel (5).

3. The central venous pressure measuring device according to claim 2, characterized in that: The outer surface of the limiting cylinder (2) is fixedly connected to a reinforcing block (8), and the bottom surface of the reinforcing block (8) is fixedly connected to the upper surface of the base (1).

4. A central venous pressure measuring device according to claim 3, characterized in that: The upper surface of the lifting column (3) is fixedly connected to a fixing plate (6), and the bottom surface of the fixing plate (6) is fixedly connected to two hooks (7).

5. A central venous pressure measuring device according to any one of claims 2-4, characterized in that: The inner bottom wall of the limiting cylinder (2) is fixedly connected to a multi-stage electric telescopic rod (9), and the telescopic end of the multi-stage electric telescopic rod (9) is fixedly connected to the bottom surface of the lifting column (3).

6. A central venous pressure measuring device according to claim 5, characterized in that: The measuring ruler (16) is snapped into the inside of the limiting frame (11), and a rotating block (20) is fixedly connected to the right end of the screw (21).

7. A central venous pressure measuring device according to claim 6, characterized in that: A sponge pad (19) is fixedly connected to the outer surface of the extrusion block (18), and the outer surface of the sponge pad (19) is in contact with the outer surface of the measuring tube (17).

Images