Visual pressure measuring catheter

Abstract

The utility model relates to the technical field of urinary medical equipment, and particularly discloses a visual pressure measuring catheter which comprises a pressure measuring tube, a pressure measuring catheter and a three-way valve, one end of the three-way valve is communicated with the pressure measuring tube, the other end of the three-way valve is communicated with the outside, the pressure measuring catheter and a quick release part are arranged at the other end of the three-way valve, and the pressure measuring tube is arranged in an L shape; during pressure measurement, the pressure measurement guide pipe is connected with the three-way valve through the quick release part, the three-way valve is adjusted to enable the pressure measurement guide pipe to be communicated with the outside, normal saline is injected into the three-way valve, then the three-way valve is adjusted to enable the pressure measurement guide pipe to be communicated with the pressure measurement pipe, and the normal saline enters the pressure measurement pipe for pressure measurement. The L-shaped piezometric tube can enable the scale part of the piezometric tube to be in a vertical state during pressure measurement, thereby reducing the influence of the inclination of the piezometric tube on the pressure measurement result, and achieving the precise measurement of the intra-abdominal pressure. When pressure measurement is not needed, the pressure measurement catheter and the three-way valve are rapidly detached through the rapid detaching piece, operation is easy, assembly and disassembly are convenient, and the situation that the pressure measurement device influences the comfort of a patient is avoided.

Description

Technical Field

[0001] This application relates to the field of urological medical device technology, and in particular to a visual pressure-measuring catheter. Background Technology

[0002] The pressure-measuring catheter is a sterile medical consumable that integrates catheterization and pressure measurement functions. It is designed for single use and measures physiological parameters such as bladder pressure and urethral pressure through an external pressure-measuring tube, while simultaneously draining urine. It has both diagnostic and therapeutic functions. The disposable design of the pressure-measuring catheter significantly reduces the risk of cross-infection and requires no disinfection or maintenance, thus improving operational efficiency.

[0003] In the prior art, a pressure-measuring catheter includes a catheter and a connector. One end of the catheter is connected to the connector. The end of the connector away from the catheter is provided with a pressure-measuring catheter, a urine outlet, and a water inlet. A first valve is provided at the end of the urine outlet, and a one-way valve is provided at the end of the water inlet. The catheter contains a urinary catheter and a water inlet tube, which are connected to the urine outlet. A balloon is provided at the end of the catheter away from the connector, and the balloon is connected to the water inlet through the water inlet tube inside the catheter. A catheter head is provided at the end of the urinary catheter away from the urine outlet, and the catheter head is connected to the urinary catheter. A pressure-measuring tube is provided at the end of the pressure-measuring catheter, and a scale is provided inside the pressure-measuring tube. A three-way valve is provided between the pressure-measuring tube and the pressure-measuring catheter. One end of the catheter is equipped with a second valve. During use, the end of the catheter with the catheter tip is slowly inserted into the patient's bladder until the balloon is fully inserted. An appropriate amount of normal saline is injected through the inlet using a syringe to inflate the balloon and lock it in place. When pressure measurement is required, the patient first empties their bladder through the catheter. The three-way valve is then switched to connect externally to the pressure measurement catheter, and the pressure measurement catheter is closed. 20-200 ml of 37-40°C normal saline is added to the bladder through the three-way valve. Then, the three-way valve is switched to connect the pressure measurement catheter to the pressure measurement tube, and the external valve is closed, allowing the normal saline to enter the pressure measurement tube for measurement. After the pressure measurement is complete, the three-way valve is switched back to connect the pressure measurement tube to the external valve, the pressure measurement catheter is closed, and the normal saline is drained.

[0004] Regarding the aforementioned technologies, since the pressure measuring tube may not be in a vertical position when measuring pressure, the measurement results may have some errors; and if the patient does not need to have pressure measured, the pressure measuring tube may reduce the patient's comfort. Therefore, improvements are needed. Utility Model Content

[0005] To improve pressure measurement accuracy and facilitate the installation and removal of the pressure measuring catheter and the three-way valve, this application provides a visual pressure measuring catheter.

[0006] The visual pressure-measuring urinary catheter provided in this application adopts the following technical solution:

[0007] A visual pressure-measuring catheter includes a pressure-measuring tube, an extension tube, and a three-way valve. The three-way valve includes a first interface, a second interface, and a third interface. The first interface and the second interface are coaxially arranged. The third interface is used to input physiological saline into the pressure-measuring catheter and to output physiological saline that has been pressure-measuring in the pressure-measuring tube. The pressure-measuring catheter is connected to the first interface. The pressure-measuring tube is L-shaped. The extension tube is located at the inlet end of the pressure-measuring tube, and the end of the extension tube away from the pressure-measuring tube is connected to the second interface of the three-way valve. The first interface is provided with a quick-release mechanism for quick connection and disconnection between the three-way valve and the pressure-measuring catheter.

[0008] Using the above technical solution, when pressure measurement is required, the patient first empties their urine through a catheter, then lies supine. Measurement is performed when the patient is not experiencing abdominal muscle tension. The pressure measuring catheter is quickly connected to the first interface using a quick-release connector. The first and third interfaces are then connected by adjusting the three-way valve, while the second interface is closed. Next, the pressure measuring catheter is connected to the external environment through the third interface, and 20-200 ml of 37-40℃ physiological saline is injected. The first and second interfaces are then connected again by adjusting the three-way valve, while the third interface is closed, connecting the pressure measuring catheter to the pressure measuring tube. The pressure measuring tube is inserted for pressure measurement. After the measurement is completed, the three-way valve is adjusted to connect the second and third interfaces, and the first interface is closed, so that the pressure measuring tube is connected to the outside and the saline is drained. Compared with the pressure measuring tubes in the prior art, the L-shaped pressure measuring tube can keep the scale of the pressure measuring tube in a vertical state during pressure measurement, reducing the impact of the pressure measuring tube tilt on the measurement results, thereby achieving accurate measurement of intra-abdominal pressure. When pressure measurement is not required, the pressure measuring tube can be quickly disassembled from the first interface using the quick-release device. The operation is simple, the installation and removal are convenient, and the pressure measuring device does not affect the patient's comfort.

[0009] Optionally, the quick-release component includes a pagoda connector and a connector protective cap, wherein the pagoda connector is disposed on the first interface of the three-way valve, and the connector protective cap is disposed on the pagoda connector.

[0010] By adopting the above technical solution, when pressure measurement is required, the connector protective cap is first removed. The first and second interfaces are connected by adjusting the three-way valve, while the third interface is closed, so that the pressure measuring catheter is connected to the pressure measuring tube. When pressure measurement is not required, the pagoda connector and the pressure measuring catheter can be quickly disassembled. The operation is simple and the installation and removal are convenient. It also avoids the pressure measuring device from affecting the patient's comfort. When the pagoda connector is not in use, the connector protective cap can also prevent external bacteria from entering the pressure measuring device and causing contamination.

[0011] Optionally, a bubble level is provided at the end near the liquid inlet of the pressure measuring tube to detect whether the pressure measuring tube is in a vertical position.

[0012] By adopting the above technical solution, when measuring pressure, the pressure measuring tube is placed vertically, and the bottom of the pressure measuring tube is adjusted to be consistent with the height of the human pubic bone. When the bubble level instrument indicates that the pressure measuring tube is in a vertical state, pressure measurement can be performed, thereby achieving accurate pressure measurement and improving the accuracy of pressure measurement.

[0013] Optionally, the pressure measuring tube is equipped with an indicator float for accurately reading the pressure value.

[0014] By adopting the above technical solution, physiological saline enters the pressure measuring tube during pressure measurement, and the indicator float floats on the physiological saline. After the physiological saline level stabilizes, the reading can be taken through the indicator float, thereby achieving accurate reading of the pressure value and further improving the accuracy of pressure measurement.

[0015] Optionally, the end of the pressure measuring tube away from the extension tube is provided with a venting and overflow prevention device to prevent liquid from overflowing from the pressure measuring tube.

[0016] By adopting the above technical solution, if the pressure is too high or the operation is wrong during the pressure measurement, causing the saline in the pressure measuring tube to overflow to the venting and overflow prevention device, the venting and overflow prevention device can prevent the saline from overflowing and avoid contamination.

[0017] Optionally, the third port of the three-way valve is provided with a three-way protective cap for switching the pipeline and preventing external bacteria from entering.

[0018] By adopting the above technical solution, after the pressure measurement is completed, the second and third ports are connected by adjusting the three-way valve, and the first port is closed, so that the extension tube is connected to the outside. The saline in the pressure measurement tube can be discharged through the extension tube and the three-way valve, thereby realizing the discharge of saline. When the pressure is not being measured, the three-way protective cap is in the closed state, which can prevent external bacteria from entering and avoid contamination of the device.

[0019] Optionally, an extension connector is provided at the end of the extension tube near the three-way valve, and a three-way ferrule is provided on the second interface of the three-way valve.

[0020] By adopting the above technical solution, the extension tube is connected to the three-way valve through the extension joint and the three-way ferrule. Compared with the extension tube being directly connected to the three-way valve, the extension joint and the three-way ferrule can make the extension tube and the three-way valve tightly connected, avoiding the extension tube from separating from the three-way valve during the pressure measurement process, which would affect the use of the pressure measuring device. In addition, the extension joint and the three-way ferrule can also make the extension tube and the three-way valve detachable, which is convenient for transportation.

[0021] Optionally, the end of the pressure measuring tube away from the extension tube is provided with a two-way valve for balancing air pressure and preventing the entry of external bacteria.

[0022] By adopting the above technical solution, when pressure is measured, the two-way valve is opened to balance the internal and external air pressure. Physiological saline can enter the pressure measuring tube through the three-way valve for pressure measurement, thereby achieving pressure balance between the internal and external air pressure during pressure measurement. When pressure is not measured, the two-way valve is closed, which can prevent external bacteria from entering and causing contamination, and also prevent moisture from entering, thus avoiding the situation where the venting and overflow prevention component absorbs moisture and cannot balance the internal and external air pressure in the pressure measuring tube.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The L-shaped pressure measuring tube in this application ensures accurate measurement of intra-abdominal pressure. During measurement, the patient first empties their bladder through a catheter and lies supine. Measurement is performed when the patient is free of abdominal muscle tension. The pressure measuring catheter is quickly connected to the first interface using a quick-release mechanism. The first and third interfaces are then connected by adjusting the three-way valve, while the second interface is closed. 20-200 ml of 37-40°C physiological saline is injected through the third interface. The first and second interfaces are then connected again by adjusting the three-way valve, while the third interface is closed, connecting the pressure measuring catheter to the pressure measuring tube. The bottom of the pressure measuring tube is aligned with the pubic bone. Measurement can begin when the bubble level indicates the pressure measuring tube is vertical. After the physiological saline level stabilizes, a precise reading can be taken using an indicator float, thus achieving accurate measurement of intra-abdominal pressure and improving measurement accuracy.

[0025] 2. The quick-release component in this application allows for the rapid installation and removal of the three-way valve and the pressure measuring catheter. When pressure measurement is required, the connector protective cap is removed first, and the first and second interfaces are connected by adjusting the three-way valve, while the third interface is closed, thus connecting the pressure measuring catheter and the pressure measuring tube. When pressure measurement is not required, the pagoda connector and the pressure measuring catheter are quickly disconnected. The operation is simple, the installation and removal are convenient, and the pressure measuring device is prevented from affecting the patient's comfort. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0028] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0029] Reference numerals: 1. Pressure measuring tube; 11. Indicating buoy; 12. Vent and overflow stop; 13. Two-way valve; 2. Extension tube; 21. Bubble level; 22. Extension connector; 3. Three-way valve; 31. Three-way protective cap; 32. Three-way clamp; 4. Quick release; 41. Pagoda connector; 42. Connector protective cap. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0031] This application discloses a visual pressure-measuring urinary catheter, as described in the embodiments below. Figure 1 and Figure 2 It includes a pressure measuring tube 1, an extension tube 2, and a three-way valve 3. The three-way valve 3 includes a first interface, a second interface, and a third interface. The first interface and the second interface are arranged in the same line. The pressure measuring tube is connected to the first interface. The pressure measuring tube 1 is arranged in an L-shape. The extension tube 2 is welded to the liquid inlet end of the pressure measuring tube 1, and the end of the extension tube 2 away from the pressure measuring tube 1 is connected to the second interface of the three-way valve 3. A quick-release piece 4 is installed on the first interface.

[0032] Before pressure measurement, the patient empties their bladder through a catheter and lies supine. Measurement is performed when the patient is free of abdominal muscle tension. The pressure measuring catheter is quickly connected to the first interface using quick-release connector 4. First, the first and third interfaces are connected by adjusting the three-way valve 3, while the second interface is closed. Then, the pressure measuring catheter is connected to the external environment through the third interface, and 20-200 ml of 37-40℃ normal saline is injected. Next, the first and second interfaces are connected by adjusting the three-way valve 3, while the third interface is closed, connecting the pressure measuring catheter to the pressure measuring tube 1, allowing the normal saline to enter. The pressure measuring tube 1 measures pressure. After the measurement is completed, the three-way valve 3 is used to connect the second and third interfaces, and the first interface is closed, so that the pressure measuring tube 1 is connected to the outside and the saline is discharged. The L-shaped design of the pressure measuring tube 1 can keep the scale of the pressure measuring tube 1 in a vertical state during the measurement, reducing the influence of the tilt of the pressure measuring tube 1 on the measurement results, thereby achieving accurate measurement of intra-abdominal pressure. When pressure measurement is not required, the pressure measuring catheter can be quickly disassembled from the first interface using the quick-release piece 4. The operation is simple, the installation and removal are convenient, and the pressure measuring device is not affected by the patient's comfort.

[0033] Reference Figure 1 and Figure 2When in use, the three-way valve 3 and the pressure measuring catheter need to be quickly installed and disconnected. In this embodiment, the quick-release component 4 includes a pagoda connector 41 and a connector protective cap 42. The pagoda connector 41 is welded to the first interface of the three-way valve 3, and the connector protective cap 42 is detachably installed on the pagoda connector 41. When measuring pressure, first remove the connector protective cap 42, adjust the three-way valve 3 to connect the first and second interfaces, and close the third interface, so that the pressure measuring catheter is connected to the pressure measuring tube 1. When pressure measurement is not required, the pagoda connector 41 and the pressure measuring catheter can be quickly disconnected. The operation is simple and the installation and removal are convenient. It also avoids the pressure measuring device from affecting the patient's comfort. When the pagoda connector 41 is not in use, the connector protective cap 42 can also prevent external bacteria from entering the pressure measuring device and causing contamination. In this embodiment, a connecting strip is welded to the connector protective cap 42, and the other end of the connecting strip is welded to the three-way valve 3.

[0034] Reference Figure 1 and Figure 2 To maintain the vertical position of the pressure measuring tube 1 during the pressure measurement process and improve the accuracy of the pressure measurement, in this embodiment, a bubble level 21 is fixedly installed at the end near the liquid inlet of the pressure measuring tube 1. The pressure measuring tube 1 is placed vertically, and the bottom of the pressure measuring tube 1 is adjusted to be consistent with the height of the pubic bone of the human body. When the bubble level 21 indicates that the pressure measuring tube 1 is in a vertical position, the pressure can be measured, thereby achieving accurate measurement of pressure and improving the accuracy of the pressure measurement.

[0035] Reference Figure 1 and Figure 2 After the saline solution stabilizes in the pressure measuring tube 1, it may be difficult to accurately read the value. Therefore, in this embodiment, an indicator float 11 is movably installed in the pressure measuring tube 1. When the saline solution enters the pressure measuring tube 1, the indicator float 11 floats on the saline solution. After the saline solution stabilizes, the value can be read through the indicator float 11, thereby achieving accurate reading of the pressure value and further improving the accuracy of pressure measurement. In this embodiment, the indicator float 11 is a small red ball. When reading the value, the value at the center of the ball should be taken. In this embodiment, the red ball is made of polyethylene. Polyethylene is a preferred material in this embodiment, but polypropylene, polytetrafluoroethylene, and other materials can also be used.

[0036] Reference Figure 1 and Figure 2 To prevent saline solution from overflowing from the pressure measuring tube 1, a venting and overflow prevention component 12 is fixedly installed at the end of the pressure measuring tube 1 away from the extension tube 2 in this embodiment. If the pressure is too high or the operation is incorrect, causing the saline solution in the pressure measuring tube 1 to overflow to the venting and overflow prevention component 12, the venting and overflow prevention component 12 can prevent the saline solution from overflowing and avoid contamination. In this embodiment, the venting and overflow prevention component 12 is a porous structure of medical polyethylene. The pores of the venting and overflow prevention component 12 are filled with high molecular weight elastic colloidal particles. When the colloidal particles come into contact with liquid, they expand, preventing the venting and overflow prevention component 12 from being vented, thereby preventing the saline solution from overflowing.

[0037] Reference Figure 1 and Figure 2 The external pipeline of the three-way valve 3 is switched on and off to prevent external bacteria from entering. In this embodiment, a three-way protective cap 31 is detachably installed on the third port of the three-way valve 3. After the pressure test is completed, the second and third ports are connected by adjusting the three-way valve 3, and the first port is closed, so that the extension tube 2 is connected to the outside. The saline in the pressure test tube 1 can be discharged through the extension tube 2 and the three-way valve 3, thereby realizing the discharge of saline. When the pressure test is not performed, the three-way protective cap 31 is in the closed state, which can prevent external bacteria from entering and avoid contamination of the device. In this embodiment, a connecting strip is welded to the three-way protective cap 31, and the other end of the connecting strip is welded to the three-way valve 3.

[0038] Reference Figure 1 and Figure 2 The extension tube 2 and the three-way valve 3 need to be tightly connected. In this embodiment, an extension connector 22 is fixedly installed at the end of the extension tube 2 near the three-way valve 3. A three-way clamp 32 is fixedly installed on the second interface of the three-way valve 3. The extension tube 2 is connected to the three-way valve 3 through the extension connector 22 and the three-way clamp 32. Compared with the extension tube 2 being directly connected to the three-way valve 3, the extension connector 22 and the three-way clamp 32 can make the extension tube 2 and the three-way valve 3 tightly connected, avoiding the extension tube 2 from being separated from the three-way valve 3 during the pressure measurement process, which would affect the use of the pressure measuring device. In addition, the extension connector 22 and the three-way clamp 32 can also make the extension tube 2 and the three-way valve 3 detachable, which is convenient for transportation.

[0039] Reference Figure 1 and Figure 2 To prevent external bacteria from entering and contaminating the device, a two-way valve 13 is fixedly installed at the end of the pressure measuring tube 1 away from the extension tube 2 in this embodiment. Opening the two-way valve 13 allows the internal and external air pressures to be balanced. Physiological saline can enter the pressure measuring tube 1 through the three-way valve 3 for pressure measurement, thereby achieving pressure balance between the internal and external air pressures during pressure measurement. When pressure measurement is not being performed, the two-way valve 13 is in the closed state, which can prevent external bacteria from entering and causing contamination, and can also prevent moisture from entering, thus avoiding the situation where the venting and overflow prevention component 12 absorbs moisture and cannot balance the internal and external air pressures of the pressure measuring tube 1.

[0040] The implementation principle of a visual pressure-measuring urinary catheter in this application embodiment is as follows:

[0041] During pressure measurement, the patient first empties their urine through a catheter and lies supine. The measurement is performed when the patient is not under abdominal muscle tension. The pressure measuring catheter is quickly connected to the first interface using the quick-release piece 4. The first and third interfaces are connected by adjusting the three-way valve 3, while the second interface is closed. Then, 20-200ml of 37-40℃ physiological saline is injected through the third interface to connect the pressure measuring catheter to the outside. The first and second interfaces are connected by adjusting the three-way valve 3 again, while the third interface is closed, connecting the pressure measuring catheter to the pressure measuring tube 1. The bottom of the pressure measuring tube 1 is adjusted to be at the same height as the pubic bone. When the bubble level 21 indicates that the pressure measuring tube 1 is in a vertical position, the pressure measurement can be performed. Physiological saline enters the pressure measuring tube 1. After the saline level stabilizes, the reading can be accurately taken through the indicator float 11, thereby achieving accurate measurement of intra-abdominal pressure and improving the accuracy of pressure measurement.

[0042] When pressure measurement is required, first remove the connector protective cap 42, adjust the three-way valve 3 to connect the first and second interfaces, and close the third interface to connect the pressure measuring catheter and the pressure measuring tube 1. When pressure measurement is not required, quickly disconnect the pagoda connector 41 from the pressure measuring catheter. The operation is simple, the installation and removal are convenient, and the pressure measuring device is avoided from affecting the patient's comfort.

[0043] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] The above are all optional 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 visual type pressure measuring catheter, provided on a pressure measuring catheter, characterized in that: The device includes a pressure measuring tube (1), an extension tube (2), and a three-way valve (3). The three-way valve (3) includes a first interface, a second interface, and a third interface. The first interface and the second interface are arranged in a collinear manner. The third interface is used to input physiological saline into the pressure measuring tube and output physiological saline that has been pressure measured in the pressure measuring tube (1). The pressure measuring tube is connected to the first interface. The pressure measuring tube (1) is arranged in an L-shape. The extension tube (2) is arranged on the inlet end of the pressure measuring tube (1), and the end of the extension tube (2) away from the pressure measuring tube (1) is connected to the second interface of the three-way valve (3). The first interface is provided with a quick-release component (4) for quick installation and removal between the three-way valve (3) and the pressure measuring tube.

2. The visual type pressure measuring urinary catheter according to claim 1, characterized in that: The quick-release component (4) includes a pagoda connector (41) and a connector protective cap (42). The pagoda connector (41) is disposed on the first interface of the three-way valve (3), and the connector protective cap (42) is disposed on the pagoda connector (41).

3. The visual type pressure measuring urinary catheter according to claim 1, characterized in that: A bubble level (21) is provided at the end near the liquid inlet of the pressure measuring tube (1) to detect whether the pressure measuring tube (1) is in a vertical state.

4. The visual type pressure measuring urinary catheter according to claim 1, characterized in that: The pressure measuring tube (1) is equipped with an indicator float (11) for accurately reading the pressure value.

5. The visual type pressure measuring urinary catheter according to claim 1, wherein: The end of the pressure measuring tube (1) away from the extension tube (2) is provided with a venting and overflow prevention component (12) to prevent liquid from overflowing from the pressure measuring tube (1).

6. The visual type pressure measuring urinary catheter according to claim 1, wherein: The third port of the three-way valve (3) is provided with a protective cap for switching the pipeline and preventing external bacteria from entering.

7. The visual type pressure measuring urinary catheter according to claim 1, characterized in that: The extension tube (2) is provided with an extension tube (2) connector at the end near the three-way valve (3), and a three-way valve (3) sleeve is provided on the second interface of the three-way valve (3).

8. The visual type pressure measuring urinary catheter according to claim 1, characterized in that: The end of the pressure measuring tube (1) away from the extension tube (2) is provided with a two-way valve (13) for balancing air pressure and preventing external bacteria from entering.

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