Urinary catheter with pressure sensor

By installing a pressure sensor on the urinary catheter, the diagnostic challenge of urinary catheter complications has been solved, enabling self-monitoring and early treatment of urinary catheter-related complications.

WO2026030939A1PCT designated stage Publication Date: 2026-02-12QIAN QINGPENG
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Patent Information

Application Number
PCT/CN2024/110232
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-06
Publication Date
2026-02-12

AI Technical Summary

Technical Problem

Existing urinary catheters may cause complications such as bladder spasms, catheter blockage, balloon rupture, and catheter dislodgement during insertion, but the lack of dedicated diagnostic equipment leads to delays or misdiagnosis.

Method used

Multiple pressure sensors are installed on the urinary catheter. By measuring pressure changes in different parts of the bladder and urinary catheter, the results are assessed and diagnosed using terminal equipment.

Benefits of technology

It enables early detection and timely treatment of urinary catheter complications, reducing delays and missed diagnoses, and the urinary catheter itself has a self-monitoring function.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2024110232_12022026_PF_FP_ABST
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Abstract

The present invention relates to a medical device, in particular, to a balloon urinary catheter with a pressure sensor. The technical problem to be solved by the present invention is that: during the use of a urinary catheter, complications such as bladder spasms, urinary catheter blockage, balloon rupture, and semi-detachment of the urinary catheter may occur, but there is currently no specialized equipment or devices for diagnosing these problems during the use of the urinary catheter. Since the pressure in the bladder and the pressure inside and outside the lumen of different parts of the urinary catheter have different characteristics in the case of bladder spasms, urinary catheter blockage, balloon rupture, detachment of the urinary catheter, etc., the present invention determines the above-mentioned various urinary catheter complications by means of pressure measurement. The present invention is a balloon urinary catheter. A pressure sensor is arranged on the urinary catheter, and a sensor data line runs within the catheter wall to reach the tail of the catheter and is connected to a terminal device. The position of the pressure sensor includes, but is not limited to, the outer wall of the catheter in a drainage hole section, the outer wall of the catheter in a balloon section, the inner wall of the catheter in the balloon section, the surface of the balloon, and the interior of the balloon. The terminal device has functions such as data reception, data processing, data transmission, screen display, switch control, and wireless communication. The beneficial effect of the present invention is that the urinary catheter complications can be determined by means of the pressure of multiple parts of the urinary catheter, providing an objective basis for clinical diagnosis. In addition, there is no need for a cannula other than the urinary catheter, and the urinary catheter itself has a self-detection function.
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Description

A urinary catheter with pressure sensor TECHNICAL FIELD

[0001] The present application relates to a medical device, in particular a urinary catheter with pressure sensor. BACKGROUND

[0002] In medical activities, patients need to wear a urinary catheter to solve the problem of urination in a large number of scenarios. During the process of wearing a urinary catheter, urinary catheter complications such as bladder spasm, urinary catheter blockage, urinary catheter balloon rupture, and urinary catheter half-extrusion may occur, which need to be discovered and identified in time. The current identification methods for such situations include experience judgment of medical personnel, experimental flushing and suction, and experimental replacement of urinary catheter. However, these methods require the operation of specialist doctors and rich professional experience, and even professional doctors sometimes still have difficulty in judgment or miss, so the above-mentioned urinary catheter complications are easily delayed or misjudged. There is no special device for diagnosing bladder spasm, urinary catheter blockage, urinary catheter balloon rupture, and urinary catheter half-extrusion during the process of wearing a urinary catheter. The current urinary catheter does not have the function of diagnosing urinary catheter complications. TECHNICAL PROBLEM

[0003] The technical problem to be solved by the present application is that urinary catheter complications such as bladder spasm, urinary catheter blockage, balloon rupture, and urinary catheter half-extrusion may occur during the process of wearing a urinary catheter, but there is no special device for diagnosing these problems during the process of wearing a urinary catheter. The present application proposes a urinary catheter with pressure sensor, which is provided with pressure sensors at multiple positions on the urinary catheter. Since the pressure in the bladder and the pressure inside and outside the lumen at different positions of the urinary catheter will have different characteristics under conditions such as bladder spasm, urinary catheter blockage, balloon rupture, and urinary catheter extrusion, the present application judges the above-mentioned various urinary catheter complications by pressure measurement. The present application is a brand new medical device. The existing urinary catheter does not have this urinary catheter complication monitoring function. The existing urodynamic detector contains a bladder pressure measuring tube, but is only used to check the function of the bladder and prostate of the patient in a non-wearing urinary catheter state, and is not used to detect urinary catheter complications, and is irrelevant to the urinary catheter in structure and function. There is no similar urinary catheter that can self-diagnose urinary catheter complications. TECHNICAL SOLUTION

[0004] The urinary catheter with a pressure sensor comprises a tube head, a tube body and a tube tail from the head end to the tail end, the tube head is provided with a drainage hole and a balloon, the tube head is correspondingly divided into a drainage hole section and a balloon section, and the tube tail is provided with a urine bag interface and a balloon water inlet port, and the urinary catheter is characterized in that the urinary catheter is provided with a pressure sensor, a sensor data line reaches the tube tail through the tube wall, and is connected to a terminal device. The pressure sensor can be one or more, and the position of the pressure sensor includes but is not limited to the outer wall of the drainage hole section, the outer wall of the balloon section, the inner wall of the balloon section, the surface of the balloon and the inside of the balloon. The pressure sensor includes but is not limited to a flexible pressure sensor, a thin film pressure sensor and a hard pressure sensor. The terminal device can have one or more functions, and the function types include but are not limited to data receiving, data processing, data storage, screen display, switch control, wireless communication and built-in power supply. The terminal device can only display numerical values, or can process the judgment results according to the positions of different pressure sensors and the measured pressure values according to a set algorithm. The terminal device can adopt various structural forms, including that the terminal device is connected with the urinary catheter through a wire, the terminal device is integrated on the urinary catheter, the terminal device is assembled on the urinary catheter, and the terminal device is divided into a wireless communication module and a wireless terminal device. The urinary catheter can be various balloon type urinary catheters, including but not limited to a double-lumen urinary catheter, a three-lumen flushing urinary catheter, a large balloon urinary catheter, an elbow urinary catheter, a silicone urinary catheter and a latex urinary catheter. According to the specific type of the urinary catheter, the tube tail can be provided with other interfaces in addition to the urine bag interface and the balloon water inlet port, including but not limited to a flushing interface, a guide wire insertion hole and a data line interface. Advantages

[0005] The urinary catheter with a pressure sensor comprises a tube head, a tube body and a tube tail from the head end to the tail end, the tube head is provided with a drainage hole and a balloon, the tube head is correspondingly divided into a drainage hole section and a balloon section, and the tube tail is provided with a urine bag interface and a balloon water inlet port, and the urinary catheter is characterized in that the urinary catheter is provided with a pressure sensor, a sensor data line reaches the tube tail through the tube wall, and is connected to a terminal device. The pressure sensor can be one or more, and the position of the pressure sensor includes but is not limited to the outer wall of the drainage hole section, the outer wall of the balloon section, the inner wall of the balloon section, the surface of the balloon and the inside of the balloon. The pressure sensor includes but is not limited to a flexible pressure sensor, a thin film pressure sensor and a hard pressure sensor. The terminal device can have one or more functions, and the function types include but are not limited to data receiving, data processing, data storage, screen display, switch control, wireless communication and built-in power supply. The terminal device can only display numerical values, or can process the judgment results according to the positions of different pressure sensors and the measured pressure values according to a set algorithm. The terminal device can adopt various structural forms, including that the terminal device is connected with the urinary catheter through a wire, the terminal device is integrated on the urinary catheter, the terminal device is assembled on the urinary catheter, and the terminal device is divided into a wireless communication module and a wireless terminal device. The urinary catheter can be various balloon type urinary catheters, including but not limited to a double-lumen urinary catheter, a three-lumen flushing urinary catheter, a large balloon urinary catheter, an elbow urinary catheter, a silicone urinary catheter and a latex urinary catheter. According to the specific type of the urinary catheter, the tube tail can be provided with other interfaces in addition to the urine bag interface and the balloon water inlet port, including but not limited to a flushing interface, a guide wire insertion hole and a data line interface. BRIEF DESCRIPTION OF DRAWINGS

[0006] Fig. 1 is a schematic diagram of the embodiment 1 of the present application;

[0007] Fig. 2 is a schematic diagram of the embodiment 2 of the present application;

[0008] The reference numerals in the drawings are explained as follows: 1, tube head; 2, tube body; 3, tail part; 4, drainage hole; 5, flushing hole; 6, balloon; 7, drainage hole section; 8, balloon section; 9, urine bag interface; 10, balloon water inlet port; 11, flushing interface; 12, outer wall pressure sensor; 13, data line; 14, terminal interface; 15, inner wall pressure sensor; 16, balloon internal pressure sensor; and 17, terminal device. Best mode for carrying out the invention

[0009] Embodiment 1: As shown in Figure 1, a urinary catheter with pressure sensors, specifically a multi-sensor double-lumen balloon urinary catheter, the urinary catheter sequentially comprises a catheter head 1, a catheter body 2, and a catheter tail 3 from the head end to the tail end, the catheter head 1 has a drainage hole 4 and a balloon 6, the catheter head 1 is divided into a drainage hole section 7 and a balloon section 8 accordingly, the outer layer of the balloon section 8 is an elastic balloon 6, the catheter tail 3 has a urine bag interface 9 and a balloon water inlet 10, water or gas injected from the balloon water inlet 10 of the catheter tail 3 can make the balloon 6 expand, the outer wall of the drainage hole section 7 of the catheter head 1 has an outer wall pressure sensor 12, the inner wall of the balloon section 8 has an inner wall pressure sensor 15 for measuring the pressure in the lumen of the urinary catheter, and the outer wall of the balloon section 8 has a balloon pressure sensor 16 for measuring the pressure in the balloon 6, the data lines 13 of the sensors pass through the inner wall of the catheter to the terminal device 17 on the catheter tail 3, the terminal device 17 is integrated on the urinary catheter, and the terminal device 17 comprises a battery, a processor, a chip, a display screen and other components, and has functions of data processing, screen display, wireless communication, etc. Embodiment of the invention

[0010] Embodiment 2: As shown in Figure 2, a urinary catheter with pressure sensors, specifically a single-sensor three-lumen balloon urinary catheter, the urinary catheter sequentially comprises a catheter head 1, a catheter body 2, and a catheter tail 3 from the head end to the tail end, the catheter head 1 has a drainage hole 4, a flushing hole 5, and a balloon 6, the catheter head 1 is divided into a drainage hole section 7 and a balloon section 8 accordingly, the outer layer of the balloon section 8 is an elastic balloon 6, the catheter tail 3 has a urine bag interface 9, a balloon water inlet 10, and a flushing interface 11, water or gas injected from the balloon water inlet 10 of the catheter tail 3 can make the balloon 6 expand, the outer wall of the drainage hole section 7 of the catheter head 1 has an outer wall pressure sensor 12 for measuring the bladder pressure, the data line 13 of the sensor passes through the inner wall of the catheter to the terminal interface 14 on the catheter tail 3, and the terminal device is connected to the terminal interface 14 through a lead wire. The terminal device has functions of data processing, screen display, etc. Industrial applicability

[0011] The invention can be manufactured and used by using existing production technology, and can have a positive effect on improving medical level and improving the quality of life of patients.

Claims

1. A balloon urinary catheter with multifunctional pressure sensor, the urinary catheter sequentially comprises a catheter head, a catheter body and a catheter tail from a head end to a tail end, the catheter head has a drainage hole and a balloon, and the catheter head is correspondingly divided into a drainage hole section and a balloon section, and the catheter tail has a urine bag interface and a balloon water inlet, characterized in that: The urinary catheter has a pressure sensor, and a sensor data line reaches the catheter tail through the catheter wall and is connected to a terminal device.

2. The urinary catheter of claim 1, wherein: The pressure sensor can be one or more, and the position of the pressure sensor includes but is not limited to the outside of the drainage hole section of the catheter wall, the outside of the balloon section of the catheter wall, the inside of the balloon section of the catheter wall, the surface of the balloon, and the inside of the balloon.

3. The urinary catheter of claim 1, wherein: The pressure sensor includes but is not limited to a flexible pressure sensor, a thin film pressure sensor, and a hard pressure sensor.

4. The urinary catheter of claim 1, wherein: The terminal device can have one or more functions, and the function types include but are not limited to data receiving, data processing, data storage, screen display, switch control, wireless communication, and built-in power supply.

5. The urinary catheter of claim 1, wherein: The terminal device can only display numerical values, or can process the measured pressure values according to the set algorithm to obtain a judgment result according to the position of the different pressure sensors.

6. The urinary catheter of claim 1, wherein: The terminal device can have various structural forms, including a terminal device connected to the urinary catheter through a wire, a terminal device integrated on the urinary catheter, a terminal device assembled on the urinary catheter, and a terminal device divided into a wireless communication module and a wireless terminal device.

7. The urinary catheter of claim 1, wherein: The urinary catheter can be various balloon types, including but not limited to a double-lumen urinary catheter, a triple-lumen flushing urinary catheter, a large balloon urinary catheter, a curved urinary catheter, a silicone urinary catheter, and a latex urinary catheter.

8. The urinary catheter of claim 1, wherein: According to the type of the urinary catheter, the catheter tail can have other interfaces in addition to the urinary bag interface and the balloon water inlet, including but not limited to a flushing interface, a guide wire insertion hole, and a data line interface.

Citation Information

Patent Citations

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