Wireless suspended bladder pressure measuring instrument

By designing a wireless suspended bladder manometer, which employs a multi-segment tubular structure and wireless data transmission, the problems of traditional devices requiring external catheters and the gravitational pressure of wireless devices are solved, enabling the measurement of bladder pressure in a natural state and simplifying operation.

WO2025231909A1PCT designated stage Publication Date: 2025-11-13QIAN QINGPENG
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Patent Information

Application Number
PCT/CN2024/092487
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-10
Publication Date
2025-11-13

AI Technical Summary

Technical Problem

Existing traditional urodynamic devices require external catheters and leads, and wireless cystometry devices suffer from the problem of their own weight compressing the bladder wall. In addition, the coiled shape of the device increases the difficulty and pain during placement and removal.

Method used

Design a wireless levitation bladder manometry device, which adopts a multi-segment tubular structure, including a buoyancy tube segment, a device segment, and an elastic connecting segment. The device integrates a power supply, a circuit board, and a pressure sensor. It transmits data wirelessly. The buoyancy tube segment can levitate inside the bladder to avoid gravitational pressure. Buoyancy tube segments are set at both ends for levitation design to prevent accidental expulsion of the device.

Benefits of technology

It enables wireless measurement of bladder pressure under natural conditions, providing more accurate results, avoiding discomfort and operational difficulties caused by the pressure of the device's gravity, and simplifying the placement and removal of the device.

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Abstract

The present invention relates to a medical instrument, which is an examination instrument for measuring pressure within a bladder. The technical problem to be solved by the present invention is that existing traditional urodynamic devices have the issue of requiring external connecting tubes, existing wireless bladder pressure measuring devices have the issue of their own weight compressing the bladder wall, and existing wireless bladder pressure measuring devices in a curled form require straightening the curled shape during placement and removal, which may cause pain. The present invention proposes a wireless, implantable examination instrument for measuring pressure within a bladder, which requires no external catheters or external wires and can be suspended within the bladder. According to the present invention, the instrument is in a multi-segment tubular form, comprising buoyancy tube segments located at both ends and a device tube segment located in the middle, with elastic connection segments between the buoyancy tube segments and the device tube segment. The diameters of the buoyancy tube segments, the elastic connection segments, and the device tube segment are all smaller than the diameter of the urethra, allowing the bladder pressure measuring instrument to be entirely placed into the bladder through the urethra. The interior of the device tube segment can accommodate components such as a power supply, a circuit board, a pressure sensor, and a wireless communication module. The buoyancy tube segments are internally filled with gas or a low-density lightweight material. According to the present invention, the bladder pressure measuring instrument can interconnect wirelessly with other devices, such that the operation and data transmission of the bladder pressure measuring instrument can be regulated and controlled in a wireless mode.
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Description

A wireless suspended bladder pressure monitor Technical Field

[0001] This invention relates to a medical device, which is an examination instrument that can be suspended in the bladder to measure intrabladder pressure without the need for external catheters or external leads. Background Technology

[0002] Urodynamic testing is an examination to determine bladder function, and measuring intrabladder pressure is one of the fundamental components of urodynamic testing. Traditional instruments for measuring intrabladder pressure require the insertion of a bladder pressure catheter into the bladder. The catheter transmits the intrabladder pressure to a pressure sensor in an external device. Such examinations can only be performed in specialized medical settings, require the presence of medical personnel, involve bulky equipment, require external leads or catheters, and require an unnatural patient position, potentially affecting the patient's psychological well-being and failing to accurately reflect bladder function under natural conditions. Currently, wireless bladder pressure monitoring devices exist, consisting of a short, coilable tube that can be inserted into the bladder, housing sensors and other components. However, the device placed inside the bladder exerts pressure on the bladder wall, potentially interfering with the accurate results of the urodynamic test. Furthermore, the coiled shape is designed to prevent the device from spontaneously expelling from the bladder upon entering the urethra, but straightening the coiled shape is necessary when inserting and removing the device, increasing the difficulty of operation and patient discomfort. Technical issues

[0003] The technical problem this invention aims to solve is that existing traditional urodynamic devices require external tubing, existing wireless bladder pressure monitoring devices suffer from pressure on the bladder wall due to their own weight, and existing coiled wireless bladder pressure monitoring devices require straightening during placement and removal, which may cause pain. This invention proposes a wireless, built-in, suspended instrument within the bladder for measuring intrabladder pressure, eliminating the need for external catheters and leads. This invention represents a novel medical device for urodynamic testing. Technical solutions

[0004] This invention is a wireless suspended bladder manometry device, a medical examination instrument that can suspend within the bladder without the need for external catheters or leads to measure intrabladder pressure. The invention is a multi-segmented tubular device, comprising buoyancy segments at both ends and a central device segment, with an elastic connecting section between the buoyancy and device segments. The diameters of the buoyancy, elastic connecting, and device segments are all smaller than the urethra. The device segment can house components such as a power supply, circuit board, pressure sensor, and wireless communication module. The bladder manometry device can be completely inserted into the bladder and can wirelessly interconnect with other devices, transmitting measurement data and controlling its operation wirelessly. The buoyancy segments can be, but are not limited to, capsule-shaped, spherical, annular, semi-annular, or combinations thereof. The outer shell of the buoyancy segment can be made of elastic or non-elastic material, and the internal filling material can be gas or a low-density lightweight material. The device segment can be rod-shaped, spherical, or a combination of multiple shapes, and its outer shell can be made of elastic or non-elastic material. The circuit board can integrate components such as a power chip, a wireless communication chip, and a pressure sensor control chip. The device segment may also contain a wireless charging module, including but not limited to a wireless charging chip, a wireless charging induction coil, and a rechargeable battery. The pressure sensor can be a rigid pressure sensor, a flexible pressure sensor, or a thin-film pressure sensor; there can be one or more sensors, located not only in the device segment but also in the buoyancy segment or the connecting segment. Wireless interconnection methods include, but are not limited to, Bluetooth wireless communication, Wi-Fi wireless communication, 4G mobile communication, and 5G mobile communication. Other wirelessly interconnected devices include, but are not limited to, dedicated data receiving devices, smartphones, tablets, wearable devices with wireless communication capabilities, or implantable devices. This bladder manometer may have an internal channel that runs through all buoyancy segments, device segments, and an elastic guide wire. The ends of the buoyancy segments on one or both sides of the bladder manometer may have handles for moving and traction the bladder manometer; the handles may be, but are not limited to, threads, pendants, or annular protrusions. Beneficial effects

[0005] The beneficial effects of this invention are as follows: The wireless design, with its built-in battery and pressure sensor transmitting data wirelessly to external devices, allows patients to complete bladder manometry naturally, freeing them from external catheters and leads, resulting in more accurate results. The buoyancy tube design allows the bladder manometer to suspend within the bladder, avoiding discomfort and interference with the measurement results caused by the bladder's own weight. The buoyancy tubes at both ends of the bladder manometer, raising them away from the bladder outlet, prevent accidental expulsion of the device. This eliminates the need for a coiled device, allowing for a straight tube design. The straight tube design avoids the difficulty and pain associated with straightening the device during insertion and removal from the bladder. Currently, there is no similar design, making this invention a practically significant innovation. Attached Figure Description

[0006] Figure 1 is a schematic diagram of Embodiment 1 of the present invention;

[0007] Figure 2 is a schematic diagram of the floating state in Embodiment 1 of the present invention;

[0008] Figure 3 is a schematic diagram of Embodiment 2 of the present invention;

[0009] Figure 4 is a schematic diagram of the floating state in Embodiment 2 of the present invention;

[0010] Figure 5 is a schematic diagram of Embodiment 3 of the present invention;

[0011] Figure 6 is a schematic diagram of the floating state in Embodiment 3 of the present invention;

[0012] Figure 7 is a schematic diagram of Embodiment 4 of the present invention;

[0013] The labels in the diagram are as follows: 1. Buoyancy tube section, 2. Device tube section, 3. Flexible connection section, 4. Pressure sensor, 5. Component, 6. Guide wire channel, 7. Handle, 8. Filler, 9. Releaseable coil, 10. Absorbable tether. The best embodiment of the present invention

[0014] Example 1: As shown in Figures 1 and 2, a wireless suspended bladder manometry device is described. This bladder manometry device is a three-segment tubular device, comprising buoyancy tube segments 1 at both ends and a device tube segment 2 in the middle, with an elastic connecting segment 3 between the buoyancy tube segments 1 and bladder tube segments 2. The diameters of the buoyancy tube segments 1, bladder tube segments 2, and elastic connecting segment 3 are all smaller than the urethra, allowing the entire bladder manometry device to be inserted into the bladder. A guide wire channel 6 runs through all the buoyancy tube segments 1, bladder tube segments 2, and elastic connecting segment 3, allowing for the placement of a guide wire. The ends of the buoyancy tube segments 1 on both sides have thread-like handles 7. The buoyancy tube segment 1 is capsule-shaped, with an outer shell made of elastic silicone material and an internal filling material 8 of gas. The device tube segment 2 is also capsule-shaped, with an outer shell made of elastic material, and internally contains components 5 such as a pressure sensor 4, a circuit board, a battery, a wireless charging module, and a Bluetooth wireless communication module. This bladder manometry device can be wirelessly interconnected with an external terminal device, which can wirelessly control the operation of the bladder manometry device and receive data measured by the pressure sensor 4. One procedure for placing Example 1 is the guidewire-guided method. One end of the guidewire is inserted through the urethra to the bladder. The guidewire channel 6 of the bladder manometer is then inserted through the guidewire. A thin tube, longer than the urethra, is then inserted through the guidewire and used as a pusher to push the entire bladder manometer into the bladder. Finally, the guidewire, tube, and pusher are withdrawn, and the bladder manometer is fully inserted into the bladder. When removing Example 1, the bladder manometer can be pulled out by grasping the handle 7 at one end of the bladder manometer with forceps under cystoscopy. Embodiments of the present invention

[0015] Example 2: As shown in Figures 3 and 4, a wireless suspended bladder manometry device is described. This bladder manometry device is a multi-segmented tubular device. The buoyancy tube segment 1 on both sides is composed of three spherical sacs, and the device tube segment 2 in the middle is capsule-shaped. An elastic connecting segment 3 connects the buoyancy tube segment 1 and the device tube segment 2. The diameters of the buoyancy tube segment 1, device tube segment 2, and elastic connecting segment 3 are all smaller than the urethra, allowing the bladder manometry device to be fully inserted into the bladder. A guide wire channel 6 runs through the entire buoyancy tube segment 1, device tube segment 2, and elastic connecting segment 3, allowing for the placement of a guide wire. The end of the buoyancy tube segment 1 has a thread-like handle 7. The buoyancy tube segment 1 is made of elastic silicone, and its internal filling material 8 is ultra-light sponge. The device tube segment 2 is made of elastic material and internally houses components 5 such as a pressure sensor 4, circuit board, battery, wireless charging module, and fourth-generation mobile communication module. This bladder manometry device can be wirelessly interconnected with an external terminal device via mobile communication. The external terminal device can remotely control the operation of the bladder manometry device and transmit and receive data via wireless means. One method of placing Example 2 is the same as Example 1. Another method of placing Example 2 is the sheath method, specifically, inserting Example 2 into a sheath, inserting the sheath into the bladder like a catheter, inserting a push rod from the outer end of the sheath, and pushing Example 2 out of the sheath into the bladder. The method of removing Example 2 is the same as the method of removing Example 1.

[0016] Example 3: As shown in Figures 5 and 6, a wireless suspended bladder manometry device is described. This bladder manometry device is a three-segment tubular device, comprising buoyancy tube segments 1 at both ends and a device tube segment 2 in the middle. An elastic connecting segment 3 connects the buoyancy tube segments 1 and 2, and the elastic connecting segment 3 is easily bent due to the ultra-flexible material. The diameters of the buoyancy tube segments 1, 2, and 3 are all the same and smaller than the urethra, allowing the entire bladder manometry device to be inserted into the bladder. A guidewire channel 6 runs through all the buoyancy tube segments 1, 2, and 3, allowing for the placement of a guidewire. The buoyancy tube segment 1 is capsule-shaped, with an outer shell made of elastic silicone material and an internal filling material 8 of gas. The device tube segment 2 is capsule-shaped, with an outer shell made of elastic material, and its interior contains a pressure sensor 4, a circuit board, a battery, a Bluetooth wireless communication module, and other components 5. The end of the buoyancy tube section 1 has a handle 7, which is a releasable pendant-like structure. Specifically, a longer releasable coil 9 and a shorter absorbent cord 10 connect the bead-like pendant handle 7 to the end of the buoyancy tube section 1. The coiled releasable coil 9 is bound by the absorbent cord 10, which can be hydrolyzed and broken, releasing the coil 9 and the pendant-like handle 7. This bladder manometry device can be wirelessly interconnected with an external terminal device, which can wirelessly control the operation of the bladder manometry device and receive data measured by the pressure sensor 4. The operation scheme for placing Example 3 is the same as that for placing Example 1. One method for removing Example 3 is to use forceps to pull out the bladder manometry device by grabbing one end of the handle 7 under cystoscopy. Another method for removing Example 3 is to release the releasable coil 9 after the absorbent cord 10 is hydrolyzed, and when the handle 7 is expelled from the body through the urethra, the handle 7 and the thin cord of the releasable coil 9 can be grabbed to pull out the entire bladder manometry device.

[0017] Example 4: As shown in Figure 7, a wireless suspended bladder manometry device is described. This bladder manometry device is a multi-segmented tubular device. The buoyancy tube segments 1 on both sides are semi-annular, and the device tube segment 2 in the middle is capsule-shaped. An elastic connecting segment 3 connects the buoyancy tube segment 1 and the device tube segment 2. The diameters of the buoyancy tube segment 1, the device tube segment 2, and the elastic connecting segment 3 are all smaller than the urethra, allowing the bladder manometry device to be fully inserted into the bladder. The end of the buoyancy tube segment 1 has an annular protrusion serving as a handle 7. The buoyancy tube segment 1 is made of elastic silicone and has multiple cavities filled with gas 8. The device tube segment 2 is made of elastic material and houses components 5 such as a pressure sensor 4, a circuit board, a battery, a wireless charging module, and a wireless communication module. This bladder manometry device can be wirelessly interconnected with an external terminal device, which can wirelessly control the operation of the bladder manometry device and receive data measured by the pressure sensor 4. The placement method of Example 4 is the same as the sheath placement method of Example 2. The removal method of Example 4 is the same as the removal method of Example 1. Industrial applicability

[0018] This invention can be implemented using existing production technologies and has industrial applicability.

Claims

1. A wireless suspended bladder manometry device, a medical examination instrument that can suspend within the bladder without the need for external catheters or wires to measure intrabladder pressure, characterized in that: The bladder manometry device is a multi-segmented tubular device, consisting of buoyancy tubes at both ends and a device tube in the middle. The buoyancy tubes and the device tube are connected by an elastic connecting section. The diameters of the buoyancy tubes, the elastic connecting section, and the device tube are all smaller than the urethra. The device tube can accommodate electronic components such as a power supply, circuit board, pressure sensor, and wireless communication module. The entire bladder manometry device can be placed inside the bladder and can be wirelessly interconnected with other devices. The operation and data transmission of this bladder manometry device can be controlled wirelessly.

2. The wireless suspended bladder manometry device according to claim 1, characterized in that: The buoyancy tube segment may be in various shapes, including but not limited to capsule-shaped, spherical, annular, semi-annular, or combinations of multiple shapes.

3. The wireless suspended bladder manometry device according to claim 1, characterized in that: The outer shell of the buoyancy tube section can be made of elastic or non-elastic material.

4. The wireless suspended bladder manometry device according to claim 1, characterized in that: The buoyancy tube section can be filled with gas or low-density lightweight material.

5. The wireless suspended bladder manometry device according to claim 1, characterized in that: The device segments can be rod-shaped, spherical, or a combination of multiple shapes.

6. The wireless suspended bladder manometry device according to claim 1, characterized in that: The outer shell of the device segment can be made of elastic or non-elastic material.

7. The wireless suspended bladder manometry device according to claim 1, characterized in that: The circuit board can integrate components such as a power chip, a wireless communication chip, and a pressure sensor control chip.

8. The wireless suspended bladder manometry device according to claim 1, characterized in that: The pressure sensors include rigid pressure sensors, flexible pressure sensors, and thin-film pressure sensors.

9. The wireless suspended bladder manometry device according to claim 1, characterized in that: The pressure sensor can be located in the device tube section, the buoyancy tube section, or the connecting section.

10. The wireless suspended bladder manometry device according to claim 1, characterized in that: The pressure sensor can be one or more.

11. The wireless suspended bladder manometry device according to claim 1, characterized in that: The wireless interconnection methods mentioned include, but are not limited to, Bluetooth wireless communication, Wi-Fi wireless communication, fourth-generation mobile communication, and fifth-generation mobile communication.

12. The wireless suspended bladder manometry device according to claim 1, characterized in that: The device segment may contain a wireless charging module, which includes, but is not limited to, a wireless charging chip, a wireless charging induction coil, and a rechargeable battery.

13. The wireless suspended bladder manometer according to claim 1, characterized in that: The pressure gauge may have a guide wire channel inside, which runs through the long axis of all buoyancy tubes, device tubes and connecting sections.

14. The wireless suspended bladder manometry device according to claim 1, characterized in that: The buoyancy tube section on one or both sides of the pressure monitor may have a handle. The handle may be made of, but is not limited to, a thread, a pendant, or a ring protrusion. Grasping the handle allows the bladder pressure monitor to be moved or pulled.

15. The wireless suspended bladder manometry device according to claim 1, characterized in that: Other wireless interconnected devices include, but are not limited to, dedicated data receiving devices, smartphones, tablets, wearable devices with wireless communication capabilities, or embedded devices.

Citation Information

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