Infusion apparatus with bladder pressure measuring function

By introducing a miniature liquid pressure sensor and display meter into the infusion set, combined with a switching component, real-time monitoring and intuitive display of bladder pressure are achieved, solving the problems of cumbersome operation and inconvenient pressure reading in existing infusion sets, and improving the convenience and intuitiveness of measurement.

CN224125957UActive Publication Date: 2026-04-17THE 910TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE 910TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
Filing Date
2025-01-08
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing infusion sets are cumbersome to operate when measuring bladder pressure, and the pressure readings are not intuitive or convenient enough.

Method used

An infusion set with a miniature liquid pressure sensor and a display was designed, which, combined with a switching component, enables real-time monitoring and intuitive display of bladder pressure.

Benefits of technology

The operation process has been simplified, the intuitiveness and convenience of bladder pressure measurement have been improved, and the manual cutting of the tubing has been avoided.

✦ Generated by Eureka AI based on patent content.

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Abstract

The infusion apparatus with the bladder pressure measuring function comprises an output pipe body, one end of the output pipe body is fixedly connected with a first connecting nut, the first connecting nut is connected with one end of a connecting cylinder through a thread structure, the other end of the connecting cylinder is connected with a second connecting nut through a thread structure, and the second connecting nut is connected with the output pipe body. The second connecting nut is fixedly connected with one end of the main pipe body, a miniature liquid pressure sensor is fixedly installed in the connecting cylinder and fixedly connected with one end of a connecting line, and the other end of the connecting line penetrates through the connecting cylinder and then is fixedly connected with a display meter. The main pipe body is fixedly connected with one end of a branch pipe, the other end of the branch pipe is fixedly connected with a switching assembly, and the end, away from the branch pipe, of the switching assembly is fixedly connected with a connector.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an infusion set with bladder pressure measurement function. Background Technology

[0002] Currently, bladder pressure measurement is commonly performed clinically using an infusion set. The specific procedure is as follows: First, a urinary catheter is inserted into the patient's urethra, and the bladder is emptied. Then, normal saline is injected into the infusion bag of the infusion set for later use. Next, the needle of the infusion set is connected to the urinary catheter, and the normal saline is injected into the bladder. Then, the infusion tubing is cut and held in hand until the normal saline level naturally drops to a stop. Finally, the level of normal saline in the infusion tubing is measured with a ruler, which indicates the bladder pressure.

[0003] The above operation is rather cumbersome. In response, Chinese Patent Application No. CN202121790350.4 discloses a disposable bladder pressure monitoring infusion set, which includes an infusion bag and an infusion tube connected to the bag via a puncture head. A needle is provided at the end of the infusion tube away from the puncture head, and an identification structure is provided on the outer wall of the infusion tube near the needle. A drip chamber is provided in the middle of the infusion tube, and a clamp is provided on the outer diameter of the infusion tube above the drip chamber. A separation structure is provided on the infusion tube below the drip chamber.

[0004] While this infusion set improves ease of operation, it is not intuitive or convenient for reading pressure. Therefore, we propose an infusion set with bladder pressure measurement function to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an infusion set with bladder pressure measurement function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an infusion set with bladder pressure measurement function, comprising an output tube body, one end of which is fixedly connected to a connecting nut one, the connecting nut one being connected to one end of a threaded cylinder, the other end of which is connected to a connecting nut two via a threaded structure, the connecting nut two being fixedly connected to one end of a main tube body, a miniature liquid pressure sensor being fixedly installed inside the connecting cylinder and fixedly connected to one end of a connecting wire, the other end of which passes through the connecting cylinder and is fixedly connected to a display meter;

[0007] One end of the branch pipe is fixedly connected to the main pipe, and the other end of the branch pipe is fixedly connected to the switching component. A connector is fixedly connected to the end of the switching component away from the branch pipe.

[0008] Preferably, the main pipe and the branch pipes are in a Y-shaped structure.

[0009] Preferably, the switching assembly includes a housing, a toggle post, an L-shaped guide port, a valve core, and a spring. One end of the housing is fixedly connected to one end of the branch pipe, and the other end of the housing is fixedly connected to a connector. The valve core is slidably disposed inside the housing. One end of the spring is fixedly connected to both sides of one end of the valve core, and the other end of the spring is fixedly connected to the inner wall of one end of the housing. An L-shaped guide port is provided on the side of the housing away from the branch pipe. The toggle post is slidably disposed inside the L-shaped guide port, and one end of the toggle post is slidably engaged with the valve core.

[0010] Preferably, the branch pipe, the housing, and the connector are interconnected, and both the housing and the valve core are U-shaped structures.

[0011] Preferably, a connecting hole is provided through one side of the valve core, and a guide groove is recessed on one end face of the valve core, in which the end of the actuating column is slidably engaged.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by setting a miniature liquid pressure sensor to detect bladder pressure in real time, and with the help of a display table to display the pressure value in real time, it is convenient for medical staff to view more intuitively; the setting of the switching component facilitates the connection of the tubing to the outside world, avoiding the need to use scissors to cut it, thus improving the ease of operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the switching component in this utility model.

[0015] In the diagram: Output pipe 1, main pipe 2, branch pipe 3, switching assembly 4, housing 41, actuating column 42, L-shaped guide port 43, valve core 44, connecting hole 441, guide groove 442, spring 45, connector 5, connecting nut one 6, connecting nut two 7, connecting cylinder 8, connecting wire 9, display meter 10. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1

[0018] Reference Figure 1 ,2 This is the first embodiment of the present invention. This embodiment provides an infusion set with bladder pressure measurement function, including an output tube body 1. One end of the output tube body 1 is fixedly connected to a connecting nut 1 6. The connecting nut 1 6 is connected to one end of a threaded cylinder 8. The other end of the connecting cylinder 8 is connected to a connecting nut 2 7 through a threaded structure. The connecting nut 2 7 is fixedly connected to one end of a main tube body 2. A miniature liquid pressure sensor is fixedly installed inside the connecting cylinder 8 and is fixedly connected to one end of a connecting wire 9. The other end of the connecting wire 9 passes through the connecting cylinder 8 and is fixedly connected to a display meter 10.

[0019] One end of the branch pipe 3 is fixedly connected to the main pipe 2, and the other end of the branch pipe 3 is fixedly connected to the switching component 4. The end of the switching component 4 away from the branch pipe 3 is fixedly connected to the connector 5.

[0020] The main tube 2 connects to the infusion bag to deliver saline solution, while the output tube 1 connects to the urinary catheter to deliver saline solution to the bladder. A tube clamp is installed on the main tube 2 to facilitate control of the flow of the delivery line. The two ends of the connecting tube 8 are threaded together by connecting nuts 6 and 7, respectively, so that the miniature liquid pressure sensor is located in the delivery line, which facilitates real-time monitoring of the pressure in the bladder. At the same time, the monitoring data is transmitted to the display 10 through the electrical connection line 9. The display 10 displays the pressure value in real time for easy viewing by medical staff. The branch tube 3 can be connected to the outside world by operating the switching component 4.

[0021] Example 2

[0022] Reference Figure 1-2 This is the second embodiment of the present invention, which is based on the previous embodiment. Specifically, the main tube 2 and the branch tube 3 form a Y-shaped structure. The main tube 2 is connected to an infusion bag to deliver saline solution, and the output tube 1 is connected to a urinary catheter to deliver saline solution to the bladder. A tube clamp is provided on the main tube 2 to facilitate the control of the opening and closing of the delivery pipeline.

[0023] Specifically, the switching component 4 includes a housing 41, a toggle post 42, an L-shaped guide port 43, a valve core 44, and a spring 45. One end of the housing 41 is fixedly connected to one end of the branch pipe 3, and the other end of the housing 41 is fixedly connected to the connector 5. The valve core 44 is slidably disposed inside the housing 41. One end of the spring 45 is fixedly connected to both sides of one end of the valve core 44, and the other end of the spring 45 is fixedly connected to the inner wall of one end of the housing 41. An L-shaped guide port 43 is opened on the side of the housing 41 away from the branch pipe 3. The toggle post 42 is slidably disposed inside the L-shaped guide port 43, and one end of the toggle post 42 is slidably engaged with the valve core 44.

[0024] Furthermore, the branch pipe 3, the housing 41 and the connector 5 are interconnected, and both the housing 41 and the valve core 44 are U-shaped structures.

[0025] By operating the switching component 4, the toggle pin 42 is manually moved. The toggle pin 42 moves along the guide groove 442 and simultaneously moves along the L-shaped guide opening 43. After the toggle pin 42 moves to the end of the guide groove 442, the spring 45 causes the valve core 44 to move within the housing 41. The connection hole 441 of the valve core 44 then connects with the branch pipe 3, facilitating communication between the branch pipe 3 and the outside. When closure is required, the toggle pin 42 is first manually operated in the reverse direction to compress the spring 45. Then, it moves in the reverse direction along the length of the guide groove 442. The toggle pin 42 is then locked in the L-shaped guide opening 43, causing the connection hole 441 of the valve core 44 to disconnect from the branch pipe 3.

[0026] Furthermore, a connecting hole 441 is provided through one side of the valve core 44, and a guide groove 442 is recessed on one end face of the valve core 44, in which the end of the actuating column 42 is slidably engaged.

[0027] Example 3

[0028] Reference Figure 1-2 This is the third embodiment of the present invention. Based on the previous two embodiments, in use, the infusion bag is connected to the main tube 2 to deliver saline solution, and the output tube 1 is connected to a urinary catheter to deliver saline solution to the bladder. A clamp is installed on the main tube 2 to facilitate control of the delivery pipeline. The two ends of the connecting tube 8 are threaded together by connecting nuts 6 and 7, respectively, placing a miniature liquid pressure sensor in the delivery pipeline for real-time monitoring of bladder pressure. Simultaneously, the monitoring data is transmitted to the display 10 via the electrically connected connecting wire 9, which displays the pressure values ​​in real time for easy viewing by medical personnel. When switching component 4 is activated, the actuating column 42 is manually moved. The actuating column 42 moves along the guide groove 442 and simultaneously moves along the L-shaped guide opening 43. After the actuating column 42 moves to the end of the guide groove 442, the spring 45 causes the valve core 44 to move within the housing 41. The connecting hole 441 of the valve core 44 then connects with the branch pipe 3, facilitating communication between the branch pipe 3 and the outside. When closure is required, the actuating column 42 is first manually operated in the reverse direction to compress the spring 45. Then, it moves in the reverse direction along the length of the guide groove 442. The actuating column 42 is then locked in the L-shaped guide opening 43, causing the connecting hole 441 of the valve core 44 to disconnect from the branch pipe 3.

[0029] It should be noted that the specific model and specifications of the miniature liquid pressure sensor and valve core 44 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0030] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. An infusion set with a function of measuring bladder pressure, comprising an output tube (1), characterized in that: One end of the output tube (1) is fixedly connected to a connecting nut one (6), the connecting nut one (6) is connected to one end of a threaded structure connecting cylinder (8), the other end of the connecting cylinder (8) is connected to a connecting nut two (7) through a threaded structure, the connecting nut two (7) is fixedly connected to one end of the main tube (2), a miniature liquid pressure sensor is fixedly installed inside the connecting cylinder (8), and the miniature liquid pressure sensor is fixedly connected to one end of a connecting wire (9), the other end of the connecting wire (9) passes through the connecting cylinder (8) and is fixedly connected to a display meter (10); One end of the branch pipe (3) is fixedly connected to the main pipe (2), and the other end of the branch pipe (3) is fixedly connected to the switching component (4). A connector (5) is fixedly connected to the end of the switching component (4) away from the branch pipe (3).

2. The infusion apparatus with the function of measuring the bladder pressure according to claim 1, characterized in that: The main pipe (2) and the branch pipes (3) form a Y-shaped structure.

3. The infusion apparatus with the function of measuring the bladder pressure according to claim 1, characterized in that: The switching assembly (4) includes a housing (41), a toggle post (42), an L-shaped guide port (43), a valve core (44), and a spring (45). One end of the housing (41) is fixedly connected to one end of the branch pipe (3), and the other end of the housing (41) is fixedly connected to the connector (5). The valve core (44) is slidably disposed inside the housing (41). One end of the spring (45) is fixedly connected to both sides of one end of the valve core (44), and the other end of the spring (45) is fixedly connected to the inner wall of one end of the housing (41). An L-shaped guide port (43) is opened on one side of the housing (41) away from the branch pipe (3). The toggle post (42) is slidably disposed inside the L-shaped guide port (43), and one end of the toggle post (42) is slidably engaged with the valve core (44).

4. An infusion set with bladder pressure measurement function according to claim 3, characterized in that: The branch pipe (3), the housing (41) and the connector (5) are interconnected, and the housing (41) and the valve core (44) are both U-shaped structures.

5. An infusion apparatus having a bladder pressure measuring function according to claim 4, characterized in that: A connecting hole (441) is provided through one side of the valve core (44), and a guide groove (442) is recessed in one end face of the valve core (44), and the end of the actuating column (42) is slidably engaged in the guide groove (442).

Citation Information

Patent Citations

  • Disposable infusion apparatus special for bladder pressure measurement

    CN215605750U