Electrotherapy urinary tube
By installing electrodes and a discharge device on the urinary catheter, the problem of bladder spasms that cannot be treated by urinary catheters has been solved. Direct electrical stimulation therapy can be performed while the catheter is in place, thus achieving the dual functions of catheterization and treatment.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2026-03-05
AI Technical Summary
Existing urinary catheters cannot simultaneously treat lower urinary tract symptoms such as bladder spasms, and existing neurostimulation devices require surgical implantation and cannot be used in conjunction with urinary catheters.
An electrotherapy catheter was designed, with electrodes on the catheter connected to a discharge device to act directly on the bladder wall. It provides multiple electrical stimulation modes to treat lower urinary tract symptoms and dysfunctions. The electrodes can be located in different parts to form a circuit, and the discharge device can be independent or integrated into the catheter.
It enables direct electrical stimulation therapy to the bladder wall and other areas while wearing a urinary catheter, avoiding additional intubation and surgical implantation. It is suitable for long-term wear and has dual functions of catheterization and treatment.
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Figure CN2024115645_05032026_PF_FP_ABST
Abstract
Description
An electrotherapy urinary catheter Technical Field
[0001] This invention relates to a medical device, specifically a urinary catheter that can prevent and treat lower urinary tract symptoms through electrical stimulation. Background Technology
[0002] In medical practice, patients often need to wear urinary catheters to manage urination. However, catheters frequently cause severe lower urinary tract symptoms such as bladder spasms, especially in post-operative patients and those sensitive to pain. Lower urinary tract symptoms caused by catheterization can pose significant risks and discomfort. Furthermore, some patients with lower urinary tract dysfunction require long-term catheterization. Current treatments for lower urinary tract symptoms and dysfunction primarily involve medication, along with neuromodulation methods, including sacral nerve stimulation and lower limb peripheral nerve stimulation. However, these methods are mainly used for spontaneous urination, not catheterization, and require specialized equipment; they cannot utilize the catheter itself. Currently, there is no catheter that can simultaneously treat both lower urinary tract symptoms and dysfunction. Technical issues
[0003] The technical problems this invention aims to solve are: existing urinary catheters can stimulate the bladder mucosa, causing bladder spasms; existing urinary catheters only have the function of draining urine, and do not simultaneously have the function of preventing and treating lower urinary tract symptoms such as bladder spasms; existing neurostimulation devices target other nerves such as the sacral nerve, requiring surgical implantation; existing bladder electrotherapy devices do not have the function of a urinary catheter. This invention proposes a urinary catheter for treating lower urinary tract symptoms and dysfunction through electrical stimulation. By placing electrodes on the catheter and connecting the electrodes to an electrical pulse generator, electrical pulses are applied directly to the bladder wall to improve lower urinary tract symptoms and treat lower urinary tract dysfunction. This invention is a novel medical device. Technical solutions
[0004] This invention relates to an electrotherapy urinary catheter. The catheter is divided into a tip, an enlarged section, an extension section, and a tail section from its tip to its tail. The tip section has a drainage hole, and the tail section has a urine bag interface. Electrodes are located at predetermined positions on the outer surface of the tip, enlarged section, and extension section that contact the urinary tract. Electrode wires are embedded within the wall of the extension section and extend to the tail section, from which they connect to a discharge device. There can be one or more electrodes, located at one or more sites on the tip, enlarged section, and extension section. Electrodes can be a single electrode at a single site, multiple electrodes at a single site, or multiple electrodes at multiple sites. Electrodes can be flexible, thin-film, or rigid, and can be made of metallic or non-metallic conductive materials. The electrical circuit between the electrodes and the discharge device can be configured as follows: a circuit between electrodes at different sites; a circuit between multiple electrodes at the same site; a circuit between an electrode and a conductive patch on the body surface; a circuit between an electrode and a conductive structure inside the catheter lumen; or a combination of two or more electrical circuit configurations. The discharge device can be connected to the urinary catheter as a standalone device via wires, or integrated into the urinary catheter as a miniature structure, or assembled onto the urinary catheter as a miniature structure. The discharge device may have an electrical pulse generator, and the voltage, current, frequency, waveform, and other parameters of the electrical pulses can be set in various ways. Depending on the position and number of electrodes on the urinary catheter, the electrode circuit combination, and the parameters of the discharge device, various electrical stimulation modes can be combined to produce different electrotherapy effects from the urinary catheter. The proximal end of the urinary catheter may have one or more balloons. Injecting water or gas into the corresponding balloon interface at the distal end of the catheter can inflate the balloons, and electrodes can also be placed on the surface of the balloons. The distal end of the catheter may have other interfaces besides the urine bag interface, including but not limited to balloon water inlet, flushing interface, and guidewire insertion hole. The urinary catheter material includes but is not limited to silicone, latex, and other flexible materials. Types of urinary catheters include but are not limited to balloon-type urinary catheters, flowering urinary catheters, double-lumen urinary catheters, multi-lumen urinary catheters, straight-tipped urinary catheters, and bent-tipped urinary catheters. Beneficial effects
[0005] The beneficial effects of this invention are as follows: the urinary catheter of this invention has its own therapeutic function, eliminating the need for additional catheterization outside the urinary catheter and surgical implantation of electrodes; the urinary catheter of this invention directly acts on the bladder wall, bladder neck, sphincter, and other lower urinary tract areas, without stimulating the sacral nerve or nerves in other areas such as the perineum and lower limbs; the urinary catheter of this invention can have multifunctional electrodes corresponding to different anatomical sites, and can generate electrical stimulation effects on multiple sites such as the bladder wall, bladder neck, and sphincter, thus it can be used to treat a variety of lower urinary tract diseases; the function of this invention is built into the urinary catheter, thus it has both catheterization and therapeutic functions, allowing patients to receive treatment while wearing the urinary catheter, making it suitable for patients who wear urinary catheters for a long time. 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 Embodiment 2 of the present invention;
[0008] Figure 3 is a schematic diagram of Embodiment 3 of the present invention;
[0009] The labels in the diagram are as follows: 1. Tip section, 2. Enlarged section, 3. Extension section, 4. Tube tail section, 5. Drain hole, 6. Electrode, 7. Wire, 8. Wire connector, 9. Fixed balloon, 10. Fixed balloon inlet, 11. Second balloon, 12. Second balloon inlet, 13. Urine bag interface, 14. Discharge device. The best embodiment of the present invention
[0010] Example 1: As shown in Figure 1, an electrotherapy balloon catheter is provided. The catheter is made of silicone and consists of a tip 1, an expansion section 2, an extension section 3, and a tail section 4 from head to tail. The tip 1 has a drain hole 5. The expansion section 2 has a fixed balloon 9. The tail section 4 has a fixed balloon water inlet 10 and a urine bag interface 13. Injecting water or gas into the fixed balloon water inlet 10 inflates the fixed balloon 9. An electrode 6 is located at the very tip of the tip 1, and another electrode 6 is located on the extension section 3 next to the fixed balloon 9. The electrode 6 is made of a flexible, non-metallic conductive material. A wire 7 of the electrode 6 is embedded in the wall of the extension section 3 and extends to the tail section 4. The wire 7 connects to a wire connector 8 on the tail section 4, and the wire connector 8 is connected to an independent discharge device via an external wire. A circuit is formed between the electrode 6 at the very tip of the catheter 1 and the electrode 6 next to the fixed balloon 9 via the discharge device. The discharge device has an electrical pulse generator, and the voltage, current, frequency, waveform, and other parameters of the electrical pulse can be set in various ways. Electrode 6 at the very tip of the ureter 1 contacts the bladder wall, and can produce a therapeutic effect by applying electrical pulses to the bladder wall. Electrode 6 next to the fixed balloon 9 contacts the bladder neck, and can produce a therapeutic effect by applying electrical pulses to the bladder neck. Embodiments of the present invention
[0011] Example 2: As shown in Figure 2, an electrotherapy balloon catheter is provided. The catheter is made of silicone and consists of a tip 1, an enlarged section 2, an extension section 3, and a tail section 4 from the head to the tail. The tip 1 has a second balloon 11 and a drainage hole 5. The enlarged section 2 has a fixed balloon 9. The tail section 4 has a fixed balloon water inlet 10, a second balloon water inlet 12, and a urine bag interface 13. Injecting water or gas into the fixed balloon water inlet 10 can inflate the fixed balloon 9, and injecting water or gas into the second balloon water inlet 12 can inflate the second balloon 11. The surface of the second balloon 11 has a thin film electrode 6. There are two flexible electrodes 6 on the extension section 3 next to the fixed balloon 9. The electrodes 6 are made of flexible non-metallic conductive material. The wires 7 of each electrode 6 are embedded in the wall of the extension section 3 and reach the tail section 4. Each wire 7 is connected to a miniature discharge device 14 fused to the catheter. The electrodes 6 on the second balloon 11 and the two electrodes 6 beside the fixed balloon 9 can each form an electrical circuit with the conductive patch connected to the discharge device 14. The electrodes 6 can also form an electrical circuit with each other via the discharge device 14. The discharge device 14 has an electrical pulse generator, and the voltage, current, frequency, waveform, and other parameters of the electrical pulses can be set in various ways. The electrodes 6 on the surface of the second balloon 11 contact the bladder wall, and can produce a therapeutic effect by acting on the bladder wall through electrical pulses. The two electrodes 6 beside the fixed balloon 9 are respectively positioned at the corresponding locations of the bladder neck and urethral sphincter, and can produce a therapeutic effect by electrically stimulating the bladder neck and urethral sphincter.
[0012] Example 3: As shown in Figure 3, an electrotherapy balloon catheter is provided. The catheter is made of silicone and consists of a tip 1, an enlarged section 2, an extension section 3, and a tail section 4 from head to tail. The tip 1 has a drain hole 5. The enlarged section 2 has a fixed balloon 9. The tail section 4 has a fixed balloon water inlet 10 and a urine bag interface 13. Injecting water or gas into the fixed balloon water inlet 10 can inflate the fixed balloon 9. The very tip of the tip 1 has a metal electrode 6. The hemispherical surface of the tail of the fixed balloon 9 has a non-metallic thin film electrode 6. The corresponding wires 7 of each electrode 6 are embedded in the wall of the extension section 3, reaching the tail section 4 and connecting to a miniature discharge device 14 assembled on the catheter. The electrode 6 at the very tip of the catheter 1 and the electrode 6 on the surface of the fixed balloon 9 can form an electrical circuit. The discharge device 14 has an electrical pulse generator, and the voltage, current, frequency, waveform, and other parameters of the electrical pulse can be set in various ways. The electrode 6 at the very tip of the ureter 1 contacts the bladder dome, and can produce a therapeutic effect by applying electrical pulses to the bladder dome. The electrode 6 on the surface of the fixation balloon 9 corresponds to the trigone of the bladder, and can produce a therapeutic effect by electrically stimulating the trigone. Industrial applicability
[0013] This invention can be manufactured and used using existing production technologies, and can have a positive effect on improving medical standards and patients' quality of life.
Claims
1. An electrotherapy urinary catheter, comprising a pointed section, an enlarged section, an extended section, and a tail section from one end to the other, wherein the pointed section has a drainage hole and the tail section has a urine bag interface, characterized in that: Electrodes are placed at designated positions on the outer surface of the urinary catheter, including the tip, dilated, and extended sections, where they contact the urinary tract. Electrode wires are embedded in the wall of the extended section and extend to the tail section. The wires extend from the tail section and connect to the discharge device.
2. The electrotherapy catheter according to claim 1, characterized in that: There can be one or more electrodes, which can be located at one or more sites on the tip, expansion, or extension segments. They can be a single electrode at a single site, multiple electrodes at a single site, or multiple electrodes at multiple sites.
3. The electrotherapy catheter according to claim 1, characterized in that: The electrode can be a flexible electrode, a thin film electrode, or a rigid electrode.
4. The electrotherapy catheter according to claim 1, characterized in that: Electrodes can be made of metal or non-metal conductive materials.
5. The electrotherapy catheter according to claim 1, characterized in that: The electrical circuit configuration of electrodes and discharge devices can include circuits formed between electrodes in different locations, circuits formed between multiple electrodes in the same location, circuits formed between electrodes and conductive patches on the body surface, circuits formed between electrodes and conductive structures inside the ureteral lumen, and circuits with two or more of the above-mentioned electrical circuit configurations.
6. The electrotherapy catheter according to claim 1, characterized in that: The forms of discharge devices include being connected to the urinary catheter as a standalone device via wires, being fused to the urinary catheter as a microstructure, and being assembled to the urinary catheter as a microstructure.
7. The electrotherapy catheter according to claim 1, characterized in that: The discharge device may have an electrical pulse generator, and the parameters of the electrical pulse, such as voltage, current, frequency, and waveform, can be set in various ways.
8. The electrotherapy catheter according to claim 1, characterized in that: Depending on the location and number of electrodes on the urinary catheter, the combination of electrode circuits, and the parameters of the discharge device, various electrical stimulation modes can be combined to produce a variety of different electrotherapy effects.
9. The electrotherapy catheter according to claim 1, characterized in that: The tip of the catheter may have one or more balloons. Water or gas can be injected into the balloon through the corresponding balloon port at the tail end of the catheter to inflate the balloon. Electrodes may also be placed on the surface of the balloon.
10. The electrotherapy catheter according to claim 1, characterized in that: The tube tail section may have other interfaces besides the urine bag interface, including but not limited to balloon inlet, flushing interface, and guidewire insertion hole.
11. The electrotherapy catheter according to claim 1, characterized in that: The materials used for urinary catheters include, but are not limited to, silicone, latex, and other flexible materials.
12. The electrotherapy catheter according to claim 1, characterized in that: The types of urinary catheters include, but are not limited to, balloon catheters, flowering catheters, double-lumen catheters, multi-lumen catheters, straight-tipped catheters, and curved-tipped catheters.
Citation Information
Patent Citations
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