Color-changeable pressure-measuring urinary catheterization device

Abstract

The utility model relates to a variable-color pressure-measuring catheterization device, and relates to the technical field of pressure-measuring catheterization devices.The variable-color pressure-measuring catheterization device comprises a catheter and a pressure-measuring tube, one end of the catheter is connected with a urine bag, and a first communicating valve is arranged at the end, close to the urine bag, of the catheter; the end, close to the urethra, of the urethral catheter is communicated with a first connecting pipe and a second connecting pipe, the first connecting pipe is used for inputting normal saline into the urethral catheter, the second connecting pipe is used for being communicated with the pressure measuring pipe, the first connecting pipe is provided with a second communicating valve, and the second connecting pipe is provided with a second communicating valve. A third communication valve is arranged at the end, away from the end connected with the second connecting pipe, of the pressure measuring pipe, and a connecting assembly connected with the pressure measuring pipe is arranged on the second connecting pipe. The pressure measuring device has the advantages that the pressure of a patient can be conveniently measured, the discomfort of the patient caused by the pressure measuring device is reduced, and meanwhile the pressure measuring device can be conveniently detached.

Description

Technical Field

[0001] This application relates to the technical field of pressure-measuring catheters, and in particular to a color-changing pressure-measuring catheter device. Background Technology

[0002] A urinary catheter is a tube made of natural rubber, silicone rubber, or polyvinyl chloride. It can be inserted into the bladder through the urethra to drain urine. After the catheter is inserted into the bladder, there is a balloon near the tip of the catheter to keep it in place in the bladder, making it less likely to fall out. The drainage tube is connected to a urine bag to collect urine.

[0003] For patients requiring catheterization, nurses measure bladder pressure in patients who require bladder or intra-abdominal pressure measurements to quickly understand bladder compliance and intra-abdominal pressure, which aids in diagnosis and care.

[0004] A Chinese patent document with publication number CN221905296U discloses a urinary catheter with a pressure measuring structure, including a catheter body, which includes an injection tube and a drainage tube. A pressure sensor is provided on one side of the upper half of the injection tube, and the lower half of the injection tube is located inside the drainage tube. The end of the lower half of the injection tube is connected to an air bladder. An elastic ring that changes with the deformation of the air bladder is fixed in the inner cavity of the air bladder, and the pressure detector is connected to the elastic ring.

[0005] Regarding the aforementioned technologies, prolonged indwelling can easily lead to urinary tract infections, and urinary salts can easily remain in the portion of the catheter located in the bladder, affecting the normal catheterization function. Therefore, catheters have a limited lifespan. During this lifespan, one end of the catheter remains in the urethra, and the portion outside the body needs to be taped to the thigh with medical tape. However, in the aforementioned cases, the pressure detector is integrated with the catheter. If it is always taped to the thigh, it will increase the patient's discomfort. Furthermore, the pressure detector and catheter are integrally molded and connected to the elastic ring inside the balloon, making disassembly inconvenient. Therefore, the lifespan of the pressure detector is the same as that of the catheter, resulting in high costs. Moreover, the sealing requirements during catheter production are extremely high, which is difficult to achieve. Therefore, improvements are needed. Utility Model Content

[0006] To facilitate pressure measurement for patients, reduce discomfort caused by the pressure measurement device, and facilitate disassembly of the pressure measurement device, this application provides a color-changing pressure measurement catheter device.

[0007] The color-changing pressure catheterization device provided in this application adopts the following technical solution:

[0008] A color-changing pressure-measuring catheterization device includes a catheter and a pressure-measuring tube. One end of the catheter is connected to a urine bag, and the end of the catheter near the urine bag is provided with a first connecting valve. The end of the catheter near the urethra is connected to a first connecting tube and a second connecting tube. The first connecting tube is used to introduce physiological saline into the catheter, and the second connecting tube is used to communicate with the pressure-measuring tube. The first connecting tube is provided with a second connecting valve, and the end of the pressure-measuring tube away from the end connected to the second connecting tube is provided with a third connecting valve. The second connecting tube is provided with a connecting assembly connected to the pressure-measuring tube. The connecting assembly includes a connecting hose on the second connecting tube, and a pressure-measuring hose on the pressure-measuring tube. The pressure-measuring hose is movably inserted into the connecting hose, and the second connecting tube is also provided with a connector for stabilizing the pressure-measuring tube within the connecting hose.

[0009] By employing the above technical solution, when performing bladder pressure testing on a patient, the patient's bladder is first emptied of urine. Then, the patient lies supine, and medical staff seal the connection point with the urine bag and the second connecting tube. 37℃-40℃ saline solution is injected into the catheter through the first connecting tube, with 20-200ml injected depending on the patient's condition and age. The pressure measuring tube is then held vertically upwards. Technicians insert the pressure measuring tubing into the connecting tubing and maintain a stable connection using pre-set connectors. The current bladder pressure is then determined by the height of the pressure measuring tube.

[0010] Since the pressure measuring hose and the connecting hose are detachable, when pressure measurement is not required, the pressure measuring hose can be separated from the connecting hose using the provided connector, thus achieving the disassembly of the pressure measuring hose. By sealing the connecting hose, normal urinary catheterization can be achieved, reducing the inconvenience to the patient's life caused by the continuous connection between the pressure measuring hose and the urinary catheter.

[0011] Optionally, the connector includes a connecting sleeve rotatably mounted on the second connecting pipe, an external thread is provided on the outer peripheral wall of the pressure testing hose, the connecting sleeve is threadedly connected to the pressure testing hose, and the connecting sleeve is also provided with a sealing element for movably sealing the connecting hose.

[0012] By adopting the above technical solution, after the relevant medical staff insert the pressure measuring tube into the connecting tube, they rotate the connecting sleeve to make the connecting sleeve fit the thread on the outer peripheral wall of the pressure measuring tube, thereby further tightening and fixing the pressure measuring tube inside the connecting tube. At this time, under the action of the thread, the pressure measuring tube is not easy to detach from the connecting tube, thus achieving stable pressure measurement.

[0013] By using a sealing device, the connecting tubing is sealed after the pressure measuring tube is disassembled by medical staff, allowing for normal subsequent catheterization. Because the connecting tubing is close to the urethra, it reduces the risk of infection caused by urine leakage and improves the hygienic performance of the catheterization device.

[0014] Optionally, the sealing component includes a fixed sleeve fixedly fitted onto the second connecting pipe, the fixed sleeve having a fixed groove, the fixed groove being inclined from the pressure measuring hose toward the connecting hose, and a clamping wheel being slidably disposed in the fixed groove, the clamping wheel being movably clamped against the connecting hose.

[0015] By adopting the above technical solution, after the medical staff disassembles the pressure measuring tubing from the connecting tubing, the medical staff slides the clamping wheel. At this time, the clamping wheel slides to the position where it is pressed against the connecting tubing. Using friction, the clamping wheel is pressed against the connecting tubing and the connecting tubing is deformed, thereby sealing the connecting tubing.

[0016] After the medical staff connects the pressure measuring tube to the connecting tube, the clamping wheel slides to a position where the distance between it and the connecting tube increases, thereby loosening the connecting tube and facilitating the connection between the pressure measuring tube and the urinary catheter.

[0017] Optionally, a limiting block is provided at the pivot of the clamping wheel. The limiting block is slidably disposed in the fixed groove. A limiting groove is provided on the limiting block. A clamping block is elastically disposed on the pressure measuring hose. The clamping block is movably inserted into the limiting groove. The opposite sides of the clamping block are respectively movably fitted and clamped against the inner sidewall of the limiting groove.

[0018] By adopting the above technical solution, medical staff first press the clamping block so that its extension direction is consistent with the length direction of the pressure measuring tube. Then, after the pressure measuring tube is inserted into the connecting sleeve, the clamping block rotates towards the limiting block under the action of elastic restoring force. After the clamping block is inserted into the limiting groove, the medical staff rotates the connecting sleeve to move the pressure measuring tube towards the catheter. At this time, the clamping block presses against the limiting groove, causing the limiting block to slide. The limiting block causes the clamping wheel to slide, thereby causing the clamping wheel to slide, releasing the connecting tube and realizing the connection between the pressure measuring tube and the catheter.

[0019] Optionally, the pressure measuring tube is provided with a scale value, and the pressure measuring tube is provided with a horizontal and vertical component, which is spherical and abuts against the apex of the human pubic symphysis.

[0020] By adopting the above technical solution, when performing urinary catheterization and pressure measurement, the pressure measuring tube is kept naturally vertical after the horizontal and vertical components are pressed against the top of the pubic symphysis. At this time, the liquid height in the pressure measuring tube is the pressure value in the patient's bladder. The spherical horizontal component reduces the discomfort caused by the horizontal and vertical components to the human body during pressure measurement and reduces the pain caused by sharp objects. At the same time, the spherical horizontal and vertical component is easy to operate when keeping the pressure measuring tube naturally vertical, thereby improving the accuracy of the subsequent liquid column height.

[0021] Optionally, a color display plate is provided behind the pressure measuring tube. The color display plate is attached to the pressure measuring tube and is divided into multiple segments. A heat insulation plate is provided between two adjacent segments of the color display plate. The color display plate is a temperature-sensitive color-changing plate.

[0022] The colorimetric panel is white at normal temperatures and turns red at temperatures above 30 degrees Celsius.

[0023] By adopting the above technical solution, the color display plate is set as a thermochromic plate. The thermochromic plate is coated with a reversible thermochromic paint. The thermochromic paint is white when the temperature is below 30°C and turns red when the temperature is above 30°C. When the liquid column height changes, the color display plate at different positions is heated. The color change between different areas of the color display plate is used to determine the current bladder pressure range of the patient, thereby determining whether the patient needs surgery or observation.

[0024] By using a temperature-sensitive color-changing plate as a contrast when the urine color is not obvious, the change in liquid level becomes more apparent.

[0025] Optionally, the scale value gradually increases from the direction closer to the horizontal and vertical member toward the direction farther away from the horizontal and vertical member, and the scale value range is 0-13cm.

[0026] By adopting the above technical solution, after suspending the pressure measuring tube in a vertical position, the scale value is set to be larger as it goes down, so that the height of the fluid column is directly linked to the intra-abdominal pressure. When the fluid column height is 12-15 mmHg, the patient's intra-abdominal pressure is normal and no treatment is required. When the fluid column height is 16-20 mmHg, close monitoring is required. When the fluid column height is 21-25 mmHg, a general surgical procedure to decompress the pressure is required. When the fluid column height is higher than 25 mmHg, an immediate decompression surgery is required, and the intra-abdominal pressure is continuously and dynamically measured.

[0027] Optionally, the second connecting pipe is provided with a fourth valve, which is a three-way valve.

[0028] By adopting the above technical solution and by installing a fourth valve on the second connecting tube, the sealing performance of the catheter can be further improved when pressure testing is not required.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. The designed connectors facilitate the installation of pressure measuring structures on the urinary catheter while reducing discomfort to the patient.

[0031] 2. By using the connecting sleeve and the external thread on the pressure testing hose, a stable connection between the pressure testing hose and the connecting hose is achieved through the connecting sleeve when connecting the pressure testing hose and the connecting hose.

[0032] 3. Through the setting of the clamping wheel, the limiting block, the clamping block and the limiting groove opened on the limiting block, when the pressure measuring hose is connected to the connecting hose, the clamping wheel moves to clamp and loosen the connecting hose, thereby achieving stable pressure measurement and urinary catheterization. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the connection structure of the connecting components;

[0035] Figure 3 This is a schematic diagram of the connection structure from another perspective.

[0036] Reference numerals: 1. Catheter; 11. First connecting valve; 12. First connecting tube; 13. Second connecting tube; 14. Pressure measuring tube; 15. Second connecting valve; 16. Third connecting valve; 17. Fourth connecting valve; 2. Connecting assembly; 21. Connecting hose; 22. Pressure measuring hose; 23. Connector; 231. Connecting sleeve; 232. External thread; 24. Sealing component; 241. Fixing sleeve; 242. Fixing groove; 243. Anchoring wheel; 25. Limiting block; 26. Anchoring block; 27. Limiting groove; 3. Color display plate; 31. Heat insulation plate; 32. Scale. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0038] This application discloses a color-changing pressure-measuring catheterization device. (Refer to...) Figure 1 A color-changing pressure-measuring catheterization device includes a catheter 1 and a pressure measuring tube 14. One end of the catheter 1 is inserted into the urethra. The end of the catheter 1 away from the urethra is connected to a urine bag, and a first connecting valve 11 is provided at the connection point with the urine bag. The end of the catheter 1 near the urethra is connected to a first connecting tube 12 and a second connecting tube 13. The first connecting tube 12 is used to introduce physiological saline into the catheter 1, and a second connecting valve 15 is provided on the first connecting tube 12. The second connecting valve 15 is a one-way valve.

[0039] The pressure measuring tube 14 has a scale value of 32. The top of the pressure measuring tube 14 has a horizontal and vertical component. The horizontal and vertical component is spherical and fits tightly against the apex of the human body. The scale value of 32 on the pressure measuring tube 14 gradually increases from the direction closer to the horizontal and vertical component. In this application, the scale value range of 32 on the pressure measuring tube 14 is 0-25 mmHg.

[0040] Meanwhile, in order to facilitate medical staff to read the liquid column reading in the pressure measuring tube 14 more accurately, a color display plate 3 is fixedly connected to the back side of the pressure measuring tube 14. In this application, the color display plate 3 is a temperature-sensitive color-changing plate. The color display plate 3 is coated with a customized reversible color-changing paint. The color display plate 3 is white at room temperature and turns red when it is above 30°C.

[0041] To further facilitate reading by medical staff, the color display plate 3 is divided into multiple segments, and a heat insulation plate 31 is provided between two adjacent segments of the color display plate 3.

[0042] The second connecting pipe 13 is used to connect with the pressure measuring pipe 14, and the end of the pressure measuring pipe 14 away from the end connected to the second connecting pipe 13 is provided with a third connecting valve 16. The second connecting pipe 13 is provided with a fourth connecting valve 17. In this application, the first connecting valve 11 and the third connecting valve 16 are both two-way valves, and the fourth connecting valve 17 is a three-way valve.

[0043] Furthermore, the second connecting pipe 13 is equipped with a connecting assembly 2 that connects to the pressure measuring pipe 14, as shown in the reference. Figure 1 and Figure 2 The connecting assembly 2 includes a connecting hose 21 fixed to the second connecting pipe 13. The diameter of the connecting hose 21 is larger than the diameter of the second connecting pipe 13. The connecting hose 21 is made of rubber tubing of the same material as the pressure band. The second connecting pipe 13 is made of Teflon tubing. A pressure measuring hose 22 is fixed to the pressure measuring pipe 14. Both the pressure measuring hose 22 and the pressure measuring pipe 14 are Teflon tubing. The pressure measuring hose 22 is movably inserted into the connecting hose 21. The second connecting pipe 13 is also provided with a connector 23 to stably position the pressure measuring hose 22 within the connecting hose 21.

[0044] Reference Figure 2 and Figure 3The second connecting pipe 13 is provided with a sealing element 24 for sealing the connecting hose 21. The sealing element 24 includes a fixing sleeve 241 disposed on the connecting hose 21 and the second connecting pipe 13. The fixing sleeve 241 is provided with a fixing groove 242, and a pressing wheel 243 is slidably disposed in the fixing groove 242. The pressing wheel 243 protrudes from the fixing sleeve 241. Multiple grooves are densely distributed on the outer peripheral wall of the pressing wheel 243 to increase the friction between the pressing wheel 243 and the connecting hose 21. The fixing groove 242 is inclined from the direction close to the pressure measuring hose 22 to the direction away from the connecting hose 21. The gap between the pressing wheel 243 and the connecting hose 21 gradually decreases from the direction close to the pressure measuring hose 22 to the direction away from the connecting hose 21.

[0045] At the same time, refer to Figure 2 and Figure 3 The connector 23 includes a connecting sleeve 231 rotatably mounted on the fixed sleeve 241. The rotation axis of the connecting sleeve 231 is consistent with the length direction of the connecting hose 21. The pressure measuring hose 22 has a threaded part near the end connected to the catheter 1. The diameter of the threaded part is larger than the diameter of the pressure measuring hose 22, and the threaded part has an external thread 232. The connecting sleeve 231 and the external thread 232 of the pressure measuring hose 22 are threadedly matched.

[0046] Meanwhile, a limiting block 25 is provided at the pivot of the clamping wheel 243. The limiting block 25 is slidably disposed in the fixed slide groove 242. A limiting groove 27 is provided on the limiting block 25. A clamping block 26 is elastically disposed on the pressure measuring hose 22. The clamping block 26 is movably inserted into the limiting groove 27. The opposite sides of the clamping block 26 are respectively movably fitted and clamped against the inner sidewall of the limiting groove 27.

[0047] The implementation principle of the color-changing pressure catheterization device in this application embodiment is as follows: When performing bladder pressure testing on a patient, the urine in the patient's bladder is first emptied. Then, the patient is placed in a supine position, and the medical staff closes the first connecting valve 11 to seal the connection with the urine bag. At this time, the second connecting tube 13 is sealed by the clamping wheel 243 and the fourth connecting valve 17. Physiological saline at 37℃-40℃ is injected into the catheter 1 through the first connecting tube 12. The amount of physiological saline injected is 20-200ml depending on the patient's physical condition and age.

[0048] Then, the medical staff inserts the pressure testing tubing 22 into the connecting tubing 21, presses the clamping block 26 so that the extension direction of the clamping block 26 is consistent with the length direction of the pressure testing tubing 22, and then inserts the pressure testing tubing 22 into the connecting sleeve 231. At this time, under the action of elastic restoring force, the clamping block 26 rotates towards the limiting block 25. After the clamping block 26 is inserted into the limiting groove 27, the medical staff rotates the connecting sleeve 231 to move the pressure testing tubing 22 towards the catheter 1. At this time, the clamping block 26 presses against the limiting groove 27, causing the limiting block 25 to slide. The limiting block 25 drives the clamping wheel 243 to slide, thereby loosening the connecting hose 21 and connecting the pressure measuring hose 22 to the connecting hose 21. Then, the medical staff opens the fourth connecting valve 17 and the third connecting valve 16. When the liquid column height changes, the color display plate 3 at different positions is heated. The color change between different areas of the color display plate 3 is used to determine the current bladder pressure range of the patient, thereby determining whether the patient needs surgery or observation, and the abdominal pressure of the patient is determined based on the reading at this time.

[0049] When the fluid column height is 12-15 mmHg, the patient's intra-abdominal pressure is normal and no treatment is required. When the fluid column height is 16-20 mmHg, close monitoring is required. When the fluid column height is 21-25 mmHg, a routine surgical procedure to decompress the pressure is required. When the fluid column height is higher than 25 mmHg, an immediate decompression surgery is required, and the intra-abdominal pressure should be continuously and dynamically measured.

[0050] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A variable color pressure measuring urinary catheter, characterized by: The device includes a urinary catheter (1) and a pressure measuring tube (14). One end of the urinary catheter (1) is connected to a urine bag, and the end of the urinary catheter (1) near the urine bag is provided with a first connecting valve (11). The end of the urinary catheter (1) near the urethra is connected to a first connecting tube (12) and a second connecting tube (13). The first connecting tube (12) is used to introduce physiological saline into the urinary catheter (1), and the second connecting tube (13) is used to communicate with the pressure measuring tube (14). The first connecting tube (12) is provided with a second connecting valve (15). The end of the pressure measuring tube (14) away from the end connected to the second connecting tube (13) is provided with a third connecting valve (16). The second connecting tube (13) is provided with a connecting component (2) connected to the pressure measuring tube (14). The connecting assembly (2) includes a connecting hose (21) disposed on the second connecting pipe (13), a pressure measuring hose (22) disposed on the pressure measuring pipe (14), the pressure measuring hose (22) being movably inserted into the connecting hose (21), and a connector (23) disposed on the second connecting pipe (13) for stabilizing the pressure measuring hose (22) within the connecting hose (21).

2. The variable color pressure measuring urinary catheter according to claim 1, wherein: The connector (23) includes a connecting sleeve (231) rotatably mounted on the second connecting pipe (13), an external thread (232) is provided on the outer peripheral wall of the pressure measuring hose (22), the connecting sleeve (231) is threadedly connected to the pressure measuring hose (22), and the connecting sleeve (231) is also provided with a sealing member (24) for movably sealing the connecting hose (21).

3. The variable color pressure catheter of claim 2, wherein: The sealing component (24) includes a fixing sleeve (241) disposed on the second connecting pipe (13). The fixing sleeve (241) is provided with a fixing groove (242). The fixing groove (242) is inclined from the direction close to the pressure measuring hose (22) to the direction away from the connecting hose (21). A clamping wheel (243) is slidably disposed in the fixing groove (242). The clamping wheel (243) is movably clamped to the connecting hose (21). The gap between the clamping wheel (243) and the connecting hose (21) gradually decreases from the direction close to the pressure measuring hose (22) to the direction away from the connecting hose (21).

4. The variable color pressure measuring urinary catheter according to claim 3, wherein: The abutment wheel (243) has a limiting block (25) at its pivot. The limiting block (25) is slidably disposed in the fixed groove (242). The limiting block (25) has a limiting groove (27). The pressure measuring hose (22) is elastically provided with an abutment block (26). The abutment block (26) is movably inserted into the limiting groove (27). The opposite sides of the abutment block (26) are respectively movably fitted and abutted against the inner sidewall of the limiting groove (27).

5. The variable color pressure measuring urinary catheter according to claim 4, wherein: The pressure measuring tube (14) is provided with a scale (32) value. The pressure measuring tube (14) is provided with a horizontal and vertical component. The horizontal and vertical component is spherical and is pressed against the apex of the human pubic symphysis.

6. The variable color pressure measuring urinary catheter according to claim 5, wherein: A color display plate (3) is provided on the back of the pressure measuring tube (14). The color display plate (3) is attached to the pressure measuring tube (14), and the color display plate (3) is divided into multiple segments. A heat insulation plate (31) is provided between two adjacent segments of the color display plate (3). The color display plate (3) is a temperature-sensitive color-changing plate. The colorimetric plate (3) is white at normal temperature and turns red at temperatures above 30°C.

7. The variable color pressure measuring urinary catheter according to claim 6, wherein: The scale (32) value gradually increases from the direction closer to the horizontal vertical member toward the direction farther away from the horizontal vertical member, and the scale (32) value range is 0-25 mmHg.

8. The variable color pressure catheter of claim 7, wherein: The second connecting pipe (13) is provided with a fourth connecting valve (17), which is a three-way valve.

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