Urinary stone removal instrument based on electrotherapy and mechanical vibration technology

Abstract

This invention discloses a urinary stone-dissolving instrument based on the fusion of electrotherapy and mechanical vibration technology. This invention relates to the field of lithotripsy technology and includes a control box. The control box contains a stone-dissolving component and a storage component. The stone-dissolving component includes electrodes, a vibrating rod, a limiting rod, and a plug. The side of the electrode is connected to one end of the plug, and the inner wall of the vibrating rod is threadedly connected to the outer periphery of the plug. Both the electrode and the vibrating rod are electrically connected to the control box via the plug. The advantages of this invention are: the complementary combination of electrotherapy and vibration technologies improves the efficiency of urinary stone dissolving. During treatment, electrotherapy continuously exerts analgesia and vasodilatory effects, while vibration focuses on promoting dissolving. When vibration causes spasmodic pain due to stone movement, electrotherapy can relieve pain and improve patient tolerance. Simultaneously, continuous blood circulation provides sufficient nutrition to the ureter, reducing traction damage to tissues caused by vibration, ultimately achieving simultaneous improvement in stone dissolving efficiency and symptom relief.

Description

Technical Field

[0001] This invention relates to the field of lithotripsy technology, specifically to a urinary stone removal instrument based on the fusion of electrotherapy and mechanical vibration technology. Background Technology

[0002] Urinary tract stones (also known as urolithiasis) are a prevalent urological disease worldwide, with an increasing incidence rate year by year and a high recurrence rate after treatment. It has become one of the core issues affecting the health of the urinary system in the population. With the increasing clinical demand for "minimally invasive, efficient, and comfortable" stone removal, the limitations of traditional stone removal techniques have gradually become apparent. The individual application of electrotherapy and mechanical vibration technology also has obvious shortcomings, which has driven the development of "integrated technology urinary stone removal instruments".

[0003] One of the core limitations of existing technologies is the separation of electrotherapy and mechanical vibration functions, which fails to form a complementary synergy, resulting in low stone removal efficiency and poor patient tolerance. To address this, we propose a urinary stone removal device based on the fusion of electrotherapy and mechanical vibration technology. Summary of the Invention

[0004] The purpose of this invention is to provide a urinary stone removal instrument based on the fusion technology of electrotherapy and mechanical vibration.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a urinary stone removal instrument based on the fusion technology of electrotherapy and mechanical vibration, including a control box, wherein the control box is provided with a stone removal component and a storage component;

[0006] The stone removal assembly includes an electrode, a vibrating rod, a limiting rod, and a plug. The side of the electrode is connected to one end of the plug, the inner wall of the vibrating rod is threaded to the outer periphery of the plug, and both the electrode and the vibrating rod are electrically connected to the control box through the plug. The surface of the limiting rod is slidably connected to the inner wall of the vibrating rod.

[0007] The storage assembly includes a liquid storage box, a cleaning roller, a rotating cylinder, a storage hole, a first limiting hole, and a second limiting hole. The end of the cleaning roller is rotatably connected to the inner wall of the liquid storage box, the inner wall of the rotating cylinder is rotatably connected to the inner wall of the control box, the side of the vibrating rod is slidably connected to the inner wall of the storage hole, and the surface of the limiting rod is slidably connected to the inner walls of the first limiting hole and the second limiting hole.

[0008] As a further aspect of the present invention: a spring is connected to the inner wall of the vibrating rod, and one end of the spring is connected to the side of the limiting rod.

[0009] As a further aspect of the present invention: the first limiting hole is formed on the side of the receiving hole, and the second limiting hole is formed on the inner wall of the rotating cylinder.

[0010] As a further aspect of the present invention: the control box has a socket on its side, and the side of the plug engages with the inner wall of the socket.

[0011] As a further embodiment of the present invention: the side of the liquid storage box is threadedly connected to the inner wall of the control box, and the storage hole is opened in the inner wall of the control box.

[0012] As a further aspect of the present invention: the side of the rotating cylinder and the side of the cleaning roller are engaged by protrusions and grooves.

[0013] As a further aspect of the present invention: the side of the vibrating rod is simultaneously rotatably connected to the inner wall of the cleaning roller.

[0014] As a further aspect of the present invention: a sealing cap is threadedly connected to the side of the liquid storage box, and the side of the cleaning roller is connected to the inner wall of the liquid storage box.

[0015] As a further aspect of the present invention: the liquid inside the liquid storage box permeates into the interior of the cleaning roller through capillary action.

[0016] Compared with the prior art, the beneficial effects of the present invention by adopting the above technical solution are as follows:

[0017] 1. This invention improves the efficiency of urinary stone expulsion by combining electrotherapy and vibration technologies. During treatment, electrotherapy continuously exerts analgesia and vasodilator effects, while vibration focuses on promoting expulsion. When vibration causes spasmodic pain by moving the stone, electrotherapy can relieve pain and improve patient tolerance. At the same time, continuous blood circulation provides sufficient nutrition to the ureter and reduces the traction damage to tissues caused by vibration, ultimately achieving simultaneous improvement in stone expulsion efficiency and symptom relief.

[0018] 2. The electrodes for electrotherapy and the vibrating rod for mechanical vibration of this invention can be operated independently. For example, for unilateral kidney stones, the electrodes can be applied only to the corresponding side, while the vibrating rod is used to precisely act on the kidney area. When no treatment is needed, the two can be stored separately to avoid equipment tangling and space occupation, thus improving operational flexibility. The liquid in the reservoir penetrates to the cleaning roller through capillary action. When the vibrating rod is stored, it rotates and contacts the cleaning roller, which can simultaneously wipe away residual body fluid on the outer wall. The reservoir is threaded with a sealing cap, which can be filled with disinfectant liquid to ensure that the surface of the vibrating rod is sterile when used next time, reducing the risk of cross-infection from multiple patients.

[0019] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the rotating cylinder in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the cleaning roller in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the liquid storage box in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the second limiting hole in an embodiment of the present invention.

[0025] In the diagram: 1. Control box; 2. Stone removal assembly; 21. Electrode; 22. Vibrator; 23. Limiting rod; 24. Socket; 25. Plug; 26. Spring; 3. Storage assembly; 31. Liquid storage box; 32. Cleaning roller; 33. Rotating cylinder; 34. Storage hole; 35. First limiting hole; 36. Second limiting hole. Detailed Implementation

[0026] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0027] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Please see the appendix Figure 1 -Appendix Figure 5 The present invention is a urinary stone removal instrument based on the fusion technology of electrotherapy and mechanical vibration, including a control box 1, and the control box 1 is provided with a stone removal component 2 and a storage component 3.

[0029] In Embodiment 1, the stone removal assembly 2 includes an electrode 21, a vibrating rod 22, a limiting rod 23, and a plug 25. The side of the electrode 21 is connected to one end of the plug 25. The inner wall of the vibrating rod 22 is threadedly connected to the outer periphery of the plug 25. Both the electrode 21 and the vibrating rod 22 are electrically connected to the control box 1 through the plug 25. The surface of the limiting rod 23 is slidably connected to the inner wall of the vibrating rod 22. A spring 26 is connected to the inner wall of the vibrating rod 22. One end of the spring 26 is connected to the side of the limiting rod 23. A socket 24 is provided on the side of the control box 1. The side of the plug 25 is engaged with the inner wall of the socket 24.

[0030] Specifically, the threads of the plug 25 and the vibrator 22 are M10×1.25 fine threads with a thread mating length of 10-12mm. The plug 25 is fitted with a medical silicone sealing ring on its side. When the plug 25 and the vibrator 22 are tightened, the sealing ring can fill the thread gap to prevent the electrical contact point from getting damp and short-circuiting. At the same time, it improves the connection stability during vibration and avoids vibration deviation caused by loose threads.

[0031] In embodiment two, the storage assembly 3 includes a liquid storage box 31, a cleaning roller 32, a rotating cylinder 33, a storage hole 34, a first limiting hole 35, and a second limiting hole 36. The end of the cleaning roller 32 is rotatably connected to the inner wall of the liquid storage box 31, the inner wall of the rotating cylinder 33 is rotatably connected to the inner wall of the control box 1, the side of the vibrating rod 22 is slidably connected to the inner wall of the storage hole 34, and the surface of the limiting rod 23 is slidably connected to the inner walls of both the first limiting hole 35 and the second limiting hole 36. The first limiting hole 35 is located on the side of the storage hole 34, the second limiting hole 36 is located on the side of the storage hole 34, the ... second limiting hole 36 is located on the Limiting hole 36 is opened on the inner wall of rotating cylinder 33. The side of liquid storage box 31 is threadedly connected to the inner wall of control box 1. Storage hole 34 is opened on the inner wall of control box 1. The side of rotating cylinder 33 is engaged with the side of cleaning roller 32 through protrusions and grooves. The side of vibrating rod 22 is rotatably connected to the inner wall of cleaning roller 32. A sealing cover is threadedly connected to the side of liquid storage box 31. The side of cleaning roller 32 is connected to the inner wall of liquid storage box 31. Liquid inside liquid storage box 31 permeates into the interior of cleaning roller 32 through capillary action.

[0032] Specifically, the cleaning roller 32 is a hollow cylindrical sponge roller (the outer layer is medical degreased cotton and the inner layer is a porous ceramic core), with a diameter of 15mm-18mm and a length of 30mm-35mm. The pore size of the ceramic core is 0.1mm-0.3mm (to ensure capillary efficiency), and one end of the ceramic core is aligned with the liquid channel on the inner wall of the liquid storage box 31 (channel diameter 5mm).

[0033] When 75% medical alcohol is filled into the liquid storage box 31, the liquid permeates through the porous structure of the ceramic core at a rate of 0.5mL / h-1mL / h to the outer layer of degreased cotton (capillary action rate matches cleaning requirements), ensuring that the cleaning roller 32 is always wet but not dripping, which ensures the disinfection effect and avoids excessive liquid seeping into the vibrator 22 and damaging the circuit.

[0034] The liquid storage box 31 is made of transparent medical-grade PP material (for easy observation of the remaining liquid level), with a capacity of 50mL-80mL. The external thread on the side is an M20×1.5 coarse thread (matching the internal thread on the inner wall of the control box 1). The thread surface is coated with medical-grade sealant (to prevent liquid leakage). When adding liquid, first unscrew the "sealing cap" on the side of the liquid storage box 31 counterclockwise, pour in disinfectant to 2 / 3 of the capacity of the liquid storage box 31 (to avoid overfilling and overflow), then tighten the sealing cap, and finally screw the liquid storage box 31 clockwise into the inner wall of the control box 1 until the threads fit snugly without any looseness.

[0035] The control box 1 integrates a microcontroller based on the ARM Cortex-M4 core, a dual-channel neuromuscular electrical stimulation (NMES) circuit module, and an electromagnetic drive circuit module. Its control logic is implemented through the embedded firmware program, and the core is the coordinated control and adaptive adjustment of parameters for electrotherapy and vibration functions.

[0036] Electrotherapy control process: The microcontroller receives the treatment mode (such as kidney area mode, ureter mode) and intensity parameters set by the user through an external interface (such as a button or Bluetooth module), and generates the corresponding biphasic rectangular pulse waveform. The mapping relationship between pulse frequency, width and current is pre-stored in the microcontroller's flash memory to form a parameter lookup table. For example, when "kidney area mode" is selected, the microcontroller automatically calls the parameter set: frequency 2-10Hz, width 200μs, and current upper limit set by the user (such as 30mA), which aims to prioritize smooth muscle relaxation and analgesia.

[0037] Vibration control process: The microcontroller synchronously generates a PWM (Pulse Width Modulation) signal to control the electromagnetic drive circuit according to the selected mode. The drive circuit outputs a current with a specific frequency and duty cycle to drive the electromagnetic oscillator in the vibrating rod 22 to work. Its frequency is linked with the electrotherapy parameters. For example, in the "ureter mode", the vibration frequency is automatically set to 25Hz, and the electrotherapy pulse frequency is synchronously adjusted to 10-15Hz to better suppress spasms.

[0038] Collaborative working principle: The timer module of the microcontroller ensures that the output of the electrotherapy pulse and the vibration waveform are synchronized in time to avoid signal interference. When the device is running, the microcontroller monitors the feedback signal (such as voltage value) of the pressure sensor inside the vibrating rod 22 in real time. If the feedback value exceeds the preset safety threshold (corresponding to a pressure of 5N-15N), the interrupt service program is automatically triggered, the vibration amplitude is reduced instantly or the vibration is paused for 0.5 seconds, and the current of the electrotherapy pulse is increased by 10%-15% to enhance the analgesic effect. After the feedback signal returns to normal, the device continues to work. This feedback-based closed-loop control algorithm ensures the safety and comfort of the treatment process and is the key to realizing electro-vibration fusion.

[0039] To ensure effective cleaning and disinfection while absolutely preventing liquid from the storage box 31 from seeping into the vibrating rod 22 and causing a short circuit, the present invention incorporates multiple sealing measures along the cleaning path.

[0040] First layer of sealing: directional penetration and flow restriction design. The porous ceramic core of the cleaning roller 32 has a precisely designed pore size (0.1mm-0.3mm). Utilizing capillary action, it can only allow trace amounts of liquid to slowly penetrate to the outer layer of degreasing cotton. Its penetration rate (0.5mL / h-1mL / h) is far below the critical value that the surface tension of the liquid can maintain, so that the degreasing cotton is always in a state of "wet but without free droplets", thus avoiding the presence of excessive liquid from the source.

[0041] The second layer of sealing: a contact-type lip seal. At each end of the inner hole of the cleaning roller 32, a lip seal made of medical-grade silicone material is embedded. When the vibrator 22 is inserted into the receiving hole 34 and rotates in contact with the inner wall of the cleaning roller 32, the lip of the seal tightly wraps around the smooth outer wall of the vibrator 22 under the action of elasticity, forming a dynamic sealing barrier. This sealing design allows the vibrator 22 to rotate relative to each other for wiping, but can effectively prevent liquid from entering the connection between the vibrator 22 and the plug 25 along the axis.

[0042] The third layer of sealing: airflow channel and anti-backflow design. The side of the rotating cylinder 33 has a small vent hole that is open to the atmosphere. This design ensures that the internal air pressure of the cleaning roller 32 is balanced with the external air pressure during the wiping process, avoiding the "piston effect" that may be caused by the insertion of the vibrating rod 22, which may draw liquid into the deep part of the equipment. All liquid activity is strictly limited to the sealed cavity formed by the liquid storage box 31, the cleaning roller 32 and its sealing ring.

[0043] Working principle:

[0044] This device uses the control box 1 as the core control unit, which integrates a microcontroller and supporting circuits to drive the electrotherapy and mechanical vibration components in a coordinated manner. The storage component 3 enables cleaning, disinfection and integrated storage after use. The overall design follows the principle of "functional separation and integrated storage", taking into account both treatment flexibility and ease of operation.

[0045] I. Treatment Preparation and Signal Generation

[0046] Users set treatment modes (such as kidney area mode, ureter mode) and parameters through the external interface (such as buttons or Bluetooth) of control box 1. The microcontroller calls the pre-stored parameter table according to the settings and generates corresponding control signals.

[0047] Electrotherapy signal: Output biphasic pulse current, parameter range: frequency 1–400Hz, pulse width 50–1000μs, current 0–99.5mA, after being amplified and regulated by a dedicated circuit, it is transmitted to electrode 21 through plug 25;

[0048] Vibration signal: Output PWM waveform to drive electromagnetic oscillator. The vibration frequency is linked to the electrotherapy (e.g., 18±2Hz in the kidney area and 25±2Hz in the ureter). The amplitude is adjustable (0.5–2mm in the kidney area and even smaller in the ureter to avoid damage).

[0049] II. Collaborative work during the treatment process

[0050] Initial stage: The electrotherapy function is activated first. Electrode 21 is attached to the target area of ​​the patient's waist and abdomen. Electrical stimulation promotes relaxation of ureteral smooth muscle, local blood circulation, widens the stone passage, and reduces friction.

[0051] Vibration stone removal stage: Activate the vibrator 22 and apply mechanical vibration to the corresponding area of ​​the body surface where the stone is located. The vibration drives the stone to move. The electrotherapy continues to run, which inhibits smooth muscle spasm caused by the movement of the stone in real time and improves the patient's tolerance.

[0052] Adaptive adjustment: The built-in pressure sensor of the vibrator 22 monitors the contact pressure in real time. If it exceeds the safety threshold (5–15N), the microcontroller automatically triggers the protection mechanism: pauses the vibration or reduces the amplitude for 0.5 seconds, while increasing the electrotherapy current by 10%–15% to enhance analgesia. Treatment continues after the pressure returns to normal.

[0053] III. Cleaning and Storage After Use

[0054] After treatment, the vibrating rod 22 is inserted into the storage hole 34 on the side wall of the control box 1. During the push-in process, the limiting rod 23 slides into the first limiting hole 35 and the second limiting hole 36 under the action of the spring 26 to achieve fixation. The outer wall of the vibrating rod 22 contacts the inner wall of the cleaning roller 32. The rotating cylinder 33 drives the cleaning roller 32 to rotate. The disinfectant in the liquid storage box 31 penetrates to the surface of the cleaning roller 32 through capillary action to wipe and disinfect its outer wall. The sealing cap prevents the liquid from evaporating. The liquid storage box 31 can be disassembled to replenish the liquid.

[0055] This completes the entire process from treatment to cleaning and tidying up.

[0056] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.

[0057] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0058] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0059] For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A urinary stone removal instrument based on the fusion technology of electrotherapy and mechanical vibration, comprising a control box (1), characterized in that: The control box (1) is equipped with a stone-discharging component (2) and a storage component (3). The stone removal assembly (2) includes an electrode (21), a vibrating rod (22), a limiting rod (23), and a plug (25). The side of the electrode (21) is connected to one end of the plug (25), the inner wall of the vibrating rod (22) is threaded to the outer periphery of the plug (25), and both the electrode (21) and the vibrating rod (22) are electrically connected to the control box (1) through the plug (25). The surface of the limiting rod (23) is slidably connected to the inner wall of the vibrating rod (22). The storage assembly (3) includes a liquid storage box (31), a cleaning roller (32), a rotating cylinder (33), a storage hole (34), a first limiting hole (35), and a second limiting hole (36). The end of the cleaning roller (32) is rotatably connected to the inner wall of the liquid storage box (31), the inner wall of the rotating cylinder (33) is rotatably connected to the inner wall of the control box (1), the side of the vibrating rod (22) is slidably connected to the inner wall of the storage hole (34), and the surface of the limiting rod (23) is slidably connected to the inner walls of the first limiting hole (35) and the second limiting hole (36). The side of the rotating cylinder (33) is engaged with the side of the cleaning roller (32) by protrusions and grooves; The side of the vibrating rod (22) is simultaneously rotatably connected to the inner wall of the cleaning roller (32); The side of the liquid storage box (31) is threaded with a sealing cap, and the side of the cleaning roller (32) is connected to the inner wall of the liquid storage box (31). The liquid inside the liquid storage box (31) permeates into the interior of the cleaning roller (32) through capillary action.

2. The urinary stone removal instrument based on the fusion technology of electrotherapy and mechanical vibration as described in claim 1, characterized in that: The inner wall of the vibrating rod (22) is connected to a spring (26), and one end of the spring (26) is connected to the side of the limiting rod (23).

3. The urinary stone removal instrument based on the fusion technology of electrotherapy and mechanical vibration according to claim 1, characterized in that: The first limiting hole (35) is opened on the side of the receiving hole (34), and the second limiting hole (36) is opened on the inner wall of the rotating cylinder (33).

4. The urinary stone removal instrument based on the fusion technology of electrotherapy and mechanical vibration according to claim 1, characterized in that: The control box (1) has a socket (24) on its side, and the side of the plug (25) is engaged with the inner wall of the socket (24).

5. The urinary stone removal instrument based on the fusion technology of electrotherapy and mechanical vibration according to claim 1, characterized in that: The side of the liquid storage box (31) is threadedly connected to the inner wall of the control box (1), and the storage hole (34) is opened on the inner wall of the control box (1).

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