Adjustable aperture kidney stone lithotripsy and removal integrated instrument

Abstract

This invention relates to the field of medical device technology, and in particular to an integrated device for lithotripsy and stone removal of kidney stones with adjustable aperture, comprising an integrated tube; the integrated tube further comprises a lithotripsy module and a lithotripsy extraction module, and the other end of the lithotripsy module and the lithotripsy extraction module are connected to a pressure regulating module, which is used to adjust the air pressure in the internal pipes of the lithotripsy module and the lithotripsy extraction module respectively; during the lithotripsy and stone removal process, there is no need to repeatedly change the device, which can reduce damage to the patient and improve the efficiency of lithotripsy and stone removal. A flexible connector is provided between the laser lithotripsy probe and the connecting tube, and a first flexible air tube is arranged on its outer side; by injecting air into the first flexible air tube at different positions through the external pressure regulating module, air pressure difference is formed in each air tube, driving the controllable cover to bend, thereby driving the laser lithotripsy probe to deflect, realizing the adjustable probe angle, which facilitates precise fragmentation of stones at different positions and ensures the quality of lithotripsy.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an integrated device for breaking down and removing kidney stones with an adjustable aperture. Background Technology

[0002] Kidney stones are a common urinary tract disease caused by the abnormal accumulation of crystalline substances such as calcium, oxalate, and uric acid in the kidneys. Clinically, small stones can be broken up by extracorporeal laser lithotripsy and excreted with urine; larger stones require surgical removal, usually using percutaneous nephrolithotomy: a fine needle is first inserted into the kidney, and then a sheath is inserted along the needle tract to establish an operating channel. Some stones can be removed directly with stone forceps, while others need to be broken up by laser and then removed with a stone retrieval basket.

[0003] Existing surgical techniques have significant drawbacks: after laser lithotripsy, the lithotripsy probe must be withdrawn and the stone retrieval basket replaced; if the stone fragmentation is insufficient, the laser probe must be reinserted for further fragmentation. This repeated instrument replacement not only results in low efficiency in stone fragmentation and retrieval but also increases the risk of cross-infection due to repeated instrument insertion and removal. Furthermore, existing laser lithotripsy probes require precise insertion and alignment with the stone; otherwise, the fixed insertion angle makes it difficult to adjust the probe's angle flexibly, potentially affecting the stone fragmentation effect. Therefore, to address these issues, a new integrated kidney stone fragmentation and retrieval instrument with an adjustable orifice is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated device for lithotripsy and stone removal of kidney stones with adjustable orifice size, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: As an optional solution of the adjustable-aperture integrated kidney stone fragmentation and removal device described in this invention, the adjustable-aperture integrated kidney stone fragmentation and removal device includes an integrated tube, a sheath, a stone fragmentation module, and a stone extraction module. The outer side of the integrated tube is equipped with a sheath tube, and the inside of the integrated tube is also equipped with a stone crushing module and a stone extraction module. The other end of the stone crushing module and the stone extraction module are connected to a pressure regulating module, which is used to adjust the air pressure in the pipes inside the stone crushing module and the stone extraction module respectively. Both the crushing module and the extraction module are equipped with crushing protection pipes and extraction protection pipes on their outer sides. The lithotripsy module includes a connecting pipe fixedly connected to the inner wall of an integral tube. One end of the connecting pipe is fixedly connected to a first flexible air tube, and the other end of the first flexible air tube is fixedly connected to a laser lithotripsy probe. A controllable cover is fixedly connected to the outside of the laser lithotripsy probe. The controllable cover is fixedly connected with uniformly distributed first flexible air tubes. The outside of the first flexible air tubes is also connected to a first air injection tube. The first air injection tube is set inside the gravel protection pipe, and the other end of the first air injection tube is connected to the air pressure regulation module.

[0006] As an alternative embodiment of the adjustable aperture integrated device for kidney stone fragmentation and removal described in this invention, wherein: multiple first flexible air tubes are arranged, and the first flexible air tubes are arranged in a ring-shaped trajectory inside the controllable cover.

[0007] As an optional embodiment of the adjustable-aperture integrated device for kidney stone fragmentation and removal described in this invention, the flexible connector is made of medical-grade rubber tubing.

[0008] Existing procedures have significant drawbacks: after laser lithotripsy, the lithotripsy probe must be withdrawn and the stone retrieval basket replaced; if the fragmentation is insufficient, the laser probe must be reinserted for further fragmentation. This repeated instrument replacement not only reduces the efficiency of fragmentation and retrieval but also increases the risk of cross-infection due to repeated instrument insertion and removal. Furthermore, existing laser lithotripsy probes require precise insertion and alignment with the stone; otherwise, the fixed insertion angle makes it difficult to adjust the probe's angle flexibly, potentially affecting the fragmentation effect. Integrating the lithotripsy module and the stone retrieval module into a single tube eliminates the need for repeated instrument changes during fragmentation and retrieval, reducing patient trauma and improving efficiency. A flexible connector is installed between the laser lithotripsy probe and the connecting tube, with a first flexible trachea positioned on its outer side. An external pressure regulating module injects air into the first flexible trachea at different locations, creating a pressure difference within each trachea. This pressure difference drives the controllable cover to bend, thereby deflecting the laser lithotripsy probe and allowing for adjustable probe angles. This facilitates precise fragmentation of stones at different locations, ensuring high-quality fragmentation.

[0009] As an optional solution of the adjustable aperture integrated kidney stone fragmentation and stone removal device of the present invention, the stone fragmentation and extraction module includes a metal channel tube fixedly connected to the integrated tube, a flexible connecting sleeve fixedly connected to one end of the metal channel tube, and a stone removal cover fixedly connected to the other end of the flexible connecting sleeve. A second flexible air tube is provided on the outside of the flexible connecting sleeve. One end of the second flexible air tube extends into the inside of the stone retrieval hood, and the other end of the second flexible air tube passes through the metal channel tube and is connected to the second air injection tube. The other end of the second air injection tube is connected to the air pressure regulating module. A stone retrieval protection pipe is also provided on the outside of the second air injection tube. The stone retrieval protection pipe is used to tighten the multiple second air injection tubes.

[0010] As an optional embodiment of the adjustable-aperture integrated device for kidney stone fragmentation and removal described in this invention, one end of the metal channel tube is externally connected to a suction pump.

[0011] As an optional embodiment of the adjustable aperture integrated device for kidney stone fragmentation and removal described in this invention, the flexible connecting sleeve is hollow and made of elastic rubber block material.

[0012] As an alternative embodiment of the adjustable-aperture integrated device for kidney stone fragmentation and removal described in this invention, the second flexible trachea is arranged in a ring-shaped trajectory on the outside of the flexible connecting sleeve.

[0013] During stone crushing, a stone-removing channel is formed by the stone-removing hood, flexible connecting sleeve and metal channel tube. The metal channel tube is connected to an external extraction pump to extract the crushed stones with negative pressure. At the same time, air is injected into the second flexible air tube at different positions through the air pressure regulating module to realize multi-angle adjustment of the stone-removing hood, ensuring effective extraction of stones at different positions and improving the quality of stone crushing and cleaning.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The lithotripsy module and the lithotripsy extraction module are integrated into a single tube, eliminating the need for repeated instrument changes during lithotripsy and stone retrieval. This reduces patient trauma and improves lithotripsy efficiency. A flexible connector is provided between the laser lithotripsy probe and the connecting tube, with a first flexible trachea arranged on its outer side. An external air pressure regulating module injects air into the first flexible trachea at different locations, creating a pressure difference within each trachea. This causes the controllable cover to bend, thereby deflecting the laser lithotripsy probe. This allows for adjustable probe angle, facilitating precise fragmentation of stones at different locations and ensuring lithotripsy quality.

[0015] During stone crushing, a stone-removing channel is formed by the stone-removing hood, flexible connecting sleeve and metal channel tube. The metal channel tube is connected to an external extraction pump to extract the crushed stones with negative pressure. At the same time, air is injected into the second flexible air tube at different positions through the air pressure regulating module to realize multi-angle adjustment of the stone-removing hood, ensuring effective extraction of stones at different positions and improving the quality of stone crushing and cleaning. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of an integrated device for lithotripsy and stone removal of kidney stones with adjustable orifice size; Figure 2 This is a schematic diagram of the lithotripsy module of an integrated lithotripsy and stone removal device with adjustable aperture for kidney stones. Figure 3 This is a schematic diagram of the lithotripsy and extraction module of an integrated instrument for kidney stone fragmentation and extraction with adjustable aperture.

[0017] In the diagram: 1-integrated tube, 2-sheath tube, 3-stone fragmentation module, 301-connecting tube, 302-laser stone fragmentation probe, 303-flexible connector, 304-controllable cover, 305-first flexible air tube, 306-first air injection tube, 4-stone extraction module, 401-metal channel tube, 402-flexible connecting sleeve, 403-stone extraction cover, 404-second flexible air tube, 405-second air injection tube, 5-stone protection pipe, 6-stone extraction protection pipe. Detailed Implementation

[0018] Example 1: Please refer to Figure 1 and Figure 2 The present invention provides a technical solution: An integrated device for lithotripsy and stone removal of kidney stones with adjustable aperture includes an integrated tube 1, a sheath 2, a lithotripsy module 3, and a lithotripsy extraction module 4; The outer side of the integrated tube 1 is provided with a sheath tube 2, and the inside of the integrated tube 1 is also provided with a stone crushing module 3 and a stone extraction module 4. The other end of the stone crushing module 3 and the stone extraction module 4 are connected to a pressure regulating module. The pressure regulating module is used to adjust the air pressure in the pipes inside the stone crushing module 3 and the stone extraction module 4 respectively. Both the outer sides of the crushing module 3 and the crushing extraction module 4 are equipped with crushing protection pipes 5 and crushing protection pipes 6. The stone crushing module 3 includes a connecting pipe 301 fixedly connected to the inner wall of the integral tube 1. One end of the connecting pipe 301 is fixedly connected to a first flexible air tube 305, and the other end of the first flexible air tube 305 is fixedly connected to a laser stone crushing probe 302. A controllable cover 304 is fixedly connected to the outside of the laser stone crushing probe 302. The controllable cover 304 is fixedly connected with uniformly distributed first flexible air tubes 305. The outside of the first flexible air tubes 305 is also connected to a first air injection tube 306. The first air injection tube 306 is set inside the gravel protection pipe 5, and the other end of the first air injection tube 306 is connected to the air pressure regulating module.

[0019] Multiple first flexible air tubes 305 are provided, and the first flexible air tubes 305 are arranged in a ring-shaped trajectory inside the controllable cover 304.

[0020] The flexible connector 303 is made of medical-grade rubber tubing.

[0021] The existing procedure has obvious drawbacks: after laser lithotripsy, the lithotripsy probe needs to be removed and the stone retrieval basket replaced; if the stone fragmentation is insufficient, the laser probe needs to be inserted again to complete the fragmentation. Repeatedly changing instruments not only reduces the efficiency of lithotripsy and stone removal but also increases the risk of cross-infection due to repeated instrument insertion and removal. Furthermore, existing laser lithotripsy probes require precise insertion and alignment with the stones; otherwise, the fixed insertion angle makes it difficult to adjust the probe angle flexibly, potentially affecting the stone fragmentation effect. Integrating the lithotripsy module 3 and the lithotripsy extraction module 4 into a single tube 1 eliminates the need for repeated instrument changes during lithotripsy and stone removal, reducing patient injury and improving efficiency. A flexible connector 303 is provided between the laser lithotripsy probe 302 and the connecting tube 301, with a first flexible trachea 305 arranged on its outer side. An external air pressure regulating module injects air into the first flexible trachea 305 at different locations, creating a pressure difference within each trachea. This drives the controllable cover 304 to bend, thereby causing the laser lithotripsy probe 302 to deflect, achieving adjustable probe angle. This facilitates precise fragmentation of stones at different locations, ensuring the quality of lithotripsy. Also includes the following: The sheath 2 is made of shape memory metal, which has preset shape memory characteristics and elastic toughness. It can adaptively adjust its tube diameter according to the usage scenario to adapt to different specifications of operation requirements. The shape memory metal material gives the sheath 2 both toughness and shape memory functions, which can adaptively adjust the diameter, improve adaptability and operational flexibility; the diameter can be adaptively adjusted without additional adjustment structure, simplifying the overall structure and reducing assembly and use complexity; the toughness characteristics can reduce damage to the target tissue / instrument, improve the safety and reliability of use.

[0022] Simultaneously, the lithotripsy process can be performed with the lithotripsy extraction action, greatly ensuring the efficiency of lithotripsy and stone removal. The lithotripsy protection pipe 5 and the stone removal protection pipe 6 are used to tighten the first air injection pipe 306 and the second air injection pipe 405 to prevent them from being scattered. The controllable cover 304 is used to drive the laser lithotripsy probe 302 to move, realize multi-angle lithotripsy, and reduce the difficulty of the operation. The first flexible air pipe 305 has bending performance. Utilizing the bending performance, multiple first flexible air pipes 305 cooperate with each other to realize the angle adjustment of the controllable cover 304.

[0023] Example 2: This example is an improvement upon Example 1. Please refer to [link / reference]. Figure 3 Specifically, the stone extraction module 4 includes a metal channel tube 401 that is fixedly connected to the integrated tube 1. One end of the metal channel tube 401 is fixedly connected to a flexible connecting sleeve 402, and the other end of the flexible connecting sleeve 402 is fixedly connected to a stone extraction cover 403. A second flexible air tube 404 is provided on the outside of the flexible connecting sleeve 402. One end of the second flexible air tube 404 extends into the inside of the stone retrieval cover 403, and the other end of the second flexible air tube 404 passes through the metal channel tube 401 and is connected to a second air injection tube 405. The other end of the second air injection tube 405 is connected to the air pressure regulating module. A stone retrieval protection pipe 6 is also provided on the outside of the second air injection tube 405. The stone retrieval protection pipe 6 is used to tighten the multiple second air injection tubes 405.

[0024] One end of the metal channel tube 401 is connected to an external extraction pump.

[0025] The flexible connecting sleeve 402 is hollow and is made of elastic rubber block material.

[0026] The second flexible air tube 404 is arranged in a ring pattern on the outside of the flexible connecting sleeve 402.

[0027] During stone crushing, the stone-removing hood 403, the flexible connecting sleeve 402 and the metal channel tube 401 work together to form a stone-removing channel. The metal channel tube 401 is connected to an external extraction pump to extract the crushed stones with negative pressure. At the same time, the air pressure regulating module injects air into the second flexible air tube 404 at different positions to realize multi-angle adjustment of the stone-removing hood 403, ensuring effective extraction of stones at different positions and improving the quality of stone crushing and cleaning. The metal channel tube 401 is hollow and connected to a pump at one end. The pump creates a negative pressure at one end, which helps to extract the gravel.

[0028] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. An integrated device for lithotripsy and stone removal of kidney stones with adjustable orifice size, characterized in that: It includes an integrated tube (1), a sheath tube (2), a stone crushing module (3), and a stone extraction module (4); The outer side of the integrated tube (1) is provided with a sheath tube (2), and the inside of the integrated tube (1) is also provided with a stone crushing module (3) and a stone extraction module (4). The other end of the stone crushing module (3) and the stone extraction module (4) are connected to a pressure regulating module. The pressure regulating module is used to adjust the internal pipeline pressure of the stone crushing module (3) and the stone extraction module (4) respectively. Both the crushing module (3) and the crushing extraction module (4) are equipped with crushing protection pipes (5) and crushing protection pipes (6) on their outer sides. The stone crushing module (3) includes a connecting pipe (301) fixedly connected to the inner wall of the integral tube (1). One end of the connecting pipe (301) is fixedly connected to a first flexible air tube (305), and the other end of the first flexible air tube (305) is fixedly connected to a laser stone crushing probe (302). A controllable cover (304) is fixedly connected to the outside of the laser stone crushing probe (302). The controllable cover (304) is fixedly connected with a uniformly distributed first flexible air tube (305). The outside of the first flexible air tube (305) is also connected to a first air injection tube (306). The first air injection tube (306) is set inside the gravel protection pipe (5), and the other end of the first air injection tube (306) is connected to the air pressure regulating module.

2. The integrated kidney stone fragmentation and removal device with adjustable orifice size according to claim 1, characterized in that: Multiple first flexible air tubes (305) are provided, and the first flexible air tubes (305) are arranged in a ring-shaped trajectory inside the controllable cover (304).

3. The integrated kidney stone fragmentation and removal device with adjustable orifice size according to claim 1, characterized in that: The flexible connector (303) is made of medical-grade rubber tubing.

4. The integrated kidney stone fragmentation and removal device with adjustable orifice size according to claim 1, characterized in that: The gravel extraction module (4) includes a metal channel tube (401) fixedly connected to the integrated tube (1), a flexible connecting sleeve (402) fixedly connected to one end of the metal channel tube (401), and a stone extraction cover (403) fixedly connected to the other end of the flexible connecting sleeve (402). A second flexible air tube (404) is provided on the outside of the flexible connecting sleeve (402). One end of the second flexible air tube (404) extends into the inside of the stone retrieval cover (403), and the other end of the second flexible air tube (404) passes through the metal channel tube (401) and is connected to the second air injection tube (405). The other end of the second air injection tube (405) is connected to the air pressure regulating module. A stone retrieval protection pipe (6) is also provided on the outside of the second air injection tube (405). The stone retrieval protection pipe (6) is used to tighten the multiple second air injection tubes (405).

5. The integrated kidney stone fragmentation and removal device with adjustable orifice size according to claim 4, characterized in that: A pump is connected to one end of the metal channel tube (401).

6. The adjustable-aperture integrated device for kidney stone fragmentation and removal according to claim 4, characterized in that: The flexible connecting sleeve (402) is hollow and is made of elastic rubber block material.

7. The integrated kidney stone fragmentation and removal device with adjustable orifice size according to claim 4, characterized in that: The second flexible trachea (404) is arranged in a ring pattern on the outside of the flexible connecting sleeve (402).

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