Sterile liquid pressure testing device
By designing a sterile liquid pressure testing device, utilizing the storage box and sealing plate structure and spring reset mechanism, the problem of the micro-pressure indicator being unable to reset was solved, achieving convenience and cost-effectiveness in bladder pressure testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN GUANGYITONG TECH CO LTD
- Filing Date
- 2024-12-27
- Publication Date
- 2026-05-01
AI Technical Summary
In existing bladder pressure testing methods, the micro-pressure indicator cannot reset when faced with viscous urine, resulting in cumbersome operation and increased testing costs.
A sterile liquid pressure testing device was designed. By cooperating with the storage box and the sealing plate, the measuring component is prevented from direct contact with urine. Springs and conical springs are used to reset the measuring component. Combined with the installation component, it enables quick installation and disassembly.
This design achieves protection against urine contamination of the measurement components, reduces replacement frequency, lowers testing costs, and ensures measurement accuracy and convenience.
Smart Images

Figure CN224179720U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bladder pressure testing technology, specifically to a sterile liquid pressure testing device. Background Technology
[0002] A bladder pressure test is a medical examination used to assess bladder function. It is typically used to evaluate the bladder's storage capacity, changes in bladder pressure, and urethral function. The purpose of this test is to help doctors understand whether the bladder and urethra are functioning properly during urine storage and emptying, especially when patients have symptoms such as difficulty urinating, urinary incontinence, or urinary frequency.
[0003] Current methods for bladder pressure testing typically use micro-pressure indicators. However, urine comes into direct contact with these indicators, and when the urine is viscous, the indicators may fail to reset, requiring replacement. This process is cumbersome. Furthermore, to ensure accurate bladder pressure readings, frequent replacements of the micro-pressure indicators increase the overall number of indicators used and thus the overall cost of bladder pressure testing.
[0004] In view of this, existing technologies may already provide solutions to the above problems, but this case aims to provide an alternative or replacement technical solution. Utility Model Content
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A sterile liquid pressure testing device includes an inlet pipe, the lower end of which is connected to a storage tank, and a detection mounting structure is installed at the lower end of the storage tank.
[0007] The detection installation structure includes: a spring mounting tube, a limiting ring, a conical spring, a first sealing plate, a support rod, a second sealing plate, and a measuring component;
[0008] The spring mounting tube is located at the lower end of the storage box. The limiting ring is fixedly installed inside the lower end of the spring mounting tube. The conical spring is movably embedded in the spring mounting tube, and its bottom end contacts the limiting ring. The first sealing plate is movably embedded in the storage box. The top end of the support rod is connected to the center of the lower end of the first sealing plate, and its bottom end passes through the center of the conical spring and the limiting ring. The second sealing plate is fixedly installed at the lower end of the support rod. The measuring component is installed at the lower end of the spring mounting tube.
[0009] Preferably, the measuring assembly includes: a connecting pipe, a sealing joint, a mounting assembly, a measuring pipe, a third sealing plate, a spring tube, and a fixing frame;
[0010] The connecting tube is fixedly installed at the lower end of the spring mounting tube, the sealing joint is fixedly embedded in the lower end of the connecting tube, the mounting assembly is installed on the outside of the connecting tube, the top end of the measuring tube is movably embedded in the sealing joint, the third sealing plate is movably embedded in the upper end of the measuring tube, the top end of the spring tube is connected to the center of the lower end of the third sealing plate, and the fixing frame is fixedly installed in the lower end of the measuring tube and connected to the lower end of the spring tube.
[0011] Preferably, the mounting assembly includes: a retaining ring, two connecting frames, a limiting sleeve, two connecting plates, two screws, and two nuts;
[0012] The fixing ring is fixedly installed on the outside of the connecting tube. The top ends of the two connecting frames are respectively connected to the two sides of the fixing ring. The limiting sleeve is movably fitted on the outside of the lower end of the measuring tube. The two connecting plates are respectively installed on the outer walls of the two sides of the limiting sleeve. One end of the two screws is respectively connected to the center of one side of the two connecting frames, and the other end passes through the center of the two connecting plates. The two nuts are movably fitted on the upper ends of the two screws.
[0013] Preferably, the spring mounting tube is tapered.
[0014] Preferably, the sealing joint is a rubber sealing joint.
[0015] Preferably, the connecting frame is U-shaped.
[0016] Beneficial effects
[0017] This utility model provides a sterile liquid pressure testing device, which has the following beneficial effects:
[0018] The detection and installation structure used in this case ensures that the measuring component does not directly contact the urine. A storage tank, in conjunction with a first sealing plate, blocks the urine. Under the pressure of the urine, the first sealing plate, support rod, and second sealing plate move downwards. The change in air pressure between the second sealing plate and the measuring tube causes the measuring component to generate a reading. When the urine pressure decreases, a spring tube and conical spring ensure the first sealing plate's reset effect, increasing its rebound force. Furthermore, the installation assembly allows for quick installation and removal of the measuring component, facilitating subsequent replacement. Attached Figure Description
[0019] Figure 1 This is a front-view three-dimensional structural diagram of the sterile liquid pressure testing device of this utility model.
[0020] Figure 2This is a bottom-view perspective view of the three-dimensional structure of the sterile liquid pressure testing device of this utility model.
[0021] Figure 3 This is a front sectional view of the sterile liquid pressure testing device of this utility model.
[0022] In the diagram: 1. Inlet pipe, 2. Storage tank, 3. Spring mounting tube, 4. Limiting ring, 5. Conical spring, 6. First sealing plate, 7. Support rod, 8. Second sealing plate, 9. Connecting pipe, 10. Sealing joint, 11. Measuring tube, 12. Third sealing plate, 13. Spring tube, 14. Fixing frame, 15. Fixing ring, 16. Connecting frame, 17. Limiting sleeve, 18. Connecting plate, 19. Screw, 20. Nut. Detailed Implementation
[0023] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] Example: Please refer to Figure 1-3 A sterile liquid pressure testing device includes an inlet pipe 1, a storage tank 2 connected to the lower end of the inlet pipe 1, and a testing installation structure installed at the lower end of the storage tank 2.
[0025] The testing installation structure includes: spring mounting tube 3, limit ring 4, conical spring 5, first sealing plate 6, support rod 7, second sealing plate 8, and measuring components;
[0026] The spring mounting tube 3 is located at the lower end of the storage box 2. The limiting ring 4 is fixedly installed inside the lower end of the spring mounting tube 3. The conical spring 5 is movably embedded in the spring mounting tube 3, and its bottom end contacts the limiting ring 4. The first sealing plate 6 is movably embedded in the storage box 2. The top end of the support rod 7 is connected to the center of the lower end of the first sealing plate 6, and its bottom end passes through the center of the conical spring 5 and the limiting ring 4. The second sealing plate 8 is fixedly installed at the lower end of the support rod 7. The measuring component is installed at the lower end of the spring mounting tube 3.
[0027] When testing a patient's bladder pressure, medical staff first install the measuring component at the lower end of the spring mounting tube 3. Then, they connect the inlet tube 1 to the patient's urinary catheter. First, a specified dose of saline is injected into the urinary catheter. Due to the patient's bladder pressure, the injected liquid enters the storage tank 2 through the inlet tube 1. The entry of the liquid pushes the first sealing plate 6 in the storage tank 2 to move downward. Under the connection of the support rod 7, the second sealing plate 8 moves with the first sealing plate 6, and at the same time, it compresses the conical spring 5 at the upper end of the limiting ring 4. The movement of the second sealing plate 8 causes the measuring component to generate a change in reading, thus detecting the patient's bladder pressure. During the testing process, the measuring component does not come into direct contact with the urine, which can fully guarantee the number of uses of the measuring component and reduce the measurement cost.
[0028] In the specific implementation process, the measuring components include: connecting pipe 9, sealing joint 10, mounting components, measuring pipe 11, third sealing plate 12, spring tube 13, and fixing frame 14;
[0029] The connecting tube 9 is fixedly installed at the lower end of the spring mounting tube 3, the sealing joint 10 is fixedly embedded in the lower end of the connecting tube 9, the mounting assembly is installed on the outside of the connecting tube 9, the top end of the measuring tube 11 is movably embedded in the sealing joint 10, the third sealing plate 12 is movably embedded in the upper end of the measuring tube 11, the top end of the spring tube 13 is connected to the center of the lower end of the third sealing plate 12, and the fixing frame 14 is fixedly installed in the lower end of the measuring tube 11 and connected to the lower end of the spring tube 13.
[0030] First, the top end of the measuring tube 11 is inserted into the connecting tube 9, and the top end is inserted into the sealing joint 10. Then, the measuring tube 11 is stably installed using the installation assembly. During the measurement process, the downward movement of the second sealing plate 8 increases the air pressure between the second sealing plate 8 and the measuring tube 11 in the connecting tube 9, thereby pushing the third sealing plate 12 in the measuring tube 11 downward and squeezing the spring tube 13 between the fixing frame 14 and the third sealing plate 12. The patient's bladder pressure can be obtained by observing the movement position of the third sealing plate 12 in the measuring tube 11. After the measurement is completed, the urine in the storage box 2 is discharged, thus reducing the pressure in the storage box 2. At the same time, under the dual push of the conical spring 5 and the spring tube 13, the first sealing plate 6, the second sealing plate 8, and the third sealing plate 12 are reset to facilitate the pressure test again.
[0031] In the specific implementation process, the installation components include: a retaining ring 15, two connecting frames 16, a limiting sleeve 17, two connecting plates 18, two screws 19, and two nuts 20;
[0032] The fixing ring 15 is fixedly installed on the outside of the connecting pipe 9. The tops of the two connecting frames 16 are respectively connected to the two sides of the fixing ring 15. The limiting sleeve 17 is movably fitted on the outside of the lower end of the measuring pipe 11. The two connecting plates 18 are respectively installed on the outer walls of the two sides of the limiting sleeve 17. One end of the two screws 19 is respectively connected to the center of one side of the two connecting frames 16, and the other end passes through the center of the two connecting plates 18. The two nuts 20 are movably fitted on the upper ends of the two screws 19.
[0033] When the top end of the measuring tube 11 is inserted into the sealing joint 10, the limiting sleeve 17 is fitted onto the outer side of the bottom end of the measuring tube 11, and the two connecting plates 18 on both sides of the limiting sleeve 17 are respectively fitted onto the upper ends of the two screws 19. Then, the two nuts 20 are fitted onto the upper ends of the two screws 19 and tightened. Under the connection between the fixing ring 15 and the two connecting frames 16, the limiting sleeve 17 and the two connecting plates 18 move upward, reducing the gap between the limiting sleeve 17 and the fixing ring 15, so that the top end of the measuring tube 11 is in close contact with the sealing joint 10, thus achieving the purpose of installing the measuring tube 11.
[0034] In the specific implementation process, the spring mounting tube 3 is tapered. The tapered spring tube 13 is used to wrap the tapered spring 5, so that the tapered spring 5 can fit against the inner wall of the spring mounting tube 3 during the contraction process, avoiding the middle section of the spring from deviating from the center during the compression process, ensuring the uniformity of the force on the spring, and thus ensuring the subsequent reset effect.
[0035] In the specific implementation process, the sealing joint 10 is a rubber sealing joint 10.
[0036] In the specific implementation process, the connecting frame 16 is U-shaped.
[0037] The sealing joint 10, made of rubber, can make the outer wall of the measuring tube 11 fit tightly with the inside of the sealing joint 10 under the pushing action of the limiting sleeve 17, ensuring the sealing effect between the top of the measuring tube 11 and the connecting tube 9, and avoiding air leakage that would affect the measurement results. The U-shaped connecting frame 16 increases the number of connection points between the connecting frame 16 and the fixing ring 15, ensuring the overall stability of the connecting frame 16. In addition, a luminous scale strip is added to the outer wall of the measuring tube 11, which is beneficial for observation at night and in dark environments.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. Sterile liquid pressure testing device comprising a liquid inlet pipe (1), characterized in that, The lower end of the inlet pipe (1) is connected to a storage tank (2), and a detection installation structure is installed at the lower end of the storage tank (2); The detection installation structure includes: a spring mounting tube (3), a limiting ring (4), a conical spring (5), a first sealing plate (6), a support rod (7), a second sealing plate (8), and a measuring component; The spring mounting tube (3) is located at the lower end of the storage box (2). The limiting ring (4) is fixedly installed inside the lower end of the spring mounting tube (3). The conical spring (5) is movably embedded in the spring mounting tube (3) and its bottom end contacts the limiting ring (4). The first sealing plate (6) is movably embedded in the storage box (2). The top end of the support rod (7) is connected to the center of the lower end of the first sealing plate (6) and its bottom end passes through the center of the conical spring (5) and the limiting ring (4). The second sealing plate (8) is fixedly installed at the lower end of the support rod (7). The measuring component is installed at the lower end of the spring mounting tube (3).
2. The sterile liquid pressure testing device according to claim 1, characterized in that, The measuring assembly includes: a connecting pipe (9), a sealing joint (10), a mounting assembly, a measuring pipe (11), a third sealing plate (12), a spring tube (13), and a fixing frame (14); The connecting tube (9) is fixedly installed at the lower end of the spring mounting tube (3), the sealing joint (10) is fixedly embedded in the lower end of the connecting tube (9), the mounting assembly is installed on the outside of the connecting tube (9), the top end of the measuring tube (11) is movably embedded in the sealing joint (10), the third sealing plate (12) is movably embedded in the upper end of the measuring tube (11), the top end of the spring tube (13) is connected to the center of the lower end of the third sealing plate (12), and the fixing frame (14) is fixedly installed in the lower end of the measuring tube (11) and connected to the lower end of the spring tube (13).
3. The sterile liquid pressure testing device according to claim 2, characterized in that, The mounting assembly includes: a retaining ring (15), two connecting frames (16), a limiting sleeve (17), two connecting plates (18), two screws (19), and two nuts (20); The fixing ring (15) is fixedly installed on the outside of the connecting pipe (9). The top ends of the two connecting frames (16) are respectively connected to the two sides of the fixing ring (15). The limiting sleeve (17) is movably fitted on the outside of the lower end of the measuring tube (11). The two connecting plates (18) are respectively installed on the outer walls of the two sides of the limiting sleeve (17). One end of the two screws (19) is respectively connected to the center of one side of the two connecting frames (16), and the other end passes through the center of the two connecting plates (18). The two nuts (20) are movably fitted on the upper ends of the two screws (19).
4. The sterile liquid pressure testing device of claim 1, wherein, The spring mounting tube (3) is tapered.
5. The sterile liquid pressure testing device of claim 2, wherein, The sealing joint (10) is a rubber sealing joint (10).
6. The sterile liquid pressure testing device of claim 3, wherein, The connecting frame (16) is U-shaped.