Double-ended ureteroscopy (proximal and distal) and methods for removing stones using ureteroscopy

Abstract

A distal-proximal double-strike ureteroscope and a method for removing stones using the ureteroscope are disclosed. The distal-proximal double-strike ureteroscope includes an operating part, a ureteroscope body having a front end and a rear end, a first stone-dispelling mechanism, and a second stone-dispelling mechanism. The first stone-dispelling mechanism is used to dispel stones within the kidney, and the second stone-dispelling mechanism is used to dispel stones obstructing the suction port. Thus, the distal-proximal double-strike ureteroscope employs a "distal-proximal double-strike" approach, which simultaneously dispels stones embedded in the kidney or movable stones and clears stones obstructing the suction port, thereby improving stone removal efficiency.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a ureteroscope with both proximal and distal sides and a method for removing stones using a ureteroscope. Background Technology

[0002] In recent years, ureteroscopy has been widely used in the treatment of urinary tract stones. Specifically, a ureteroscope can be inserted through the urethra into the ureter or kidney, allowing medical professionals to use it in conjunction with imaging and lighting equipment to observe the condition inside the kidney and break up stones in the target location.

[0003] In practical applications, during ureteroscopic stone removal, when the stones are large, traditional ureteroscopes, even after breaking them into fragments with an equivalent diameter of approximately 2mm, often struggle to achieve complete pulverization. Furthermore, larger fragments are difficult to remove from the patient's body effectively via a drainage mechanism. After stone fragmentation using traditional ureteroscopy, 60%-90% of the fragments remain in the kidney and are difficult to eliminate naturally. This residual stone is one of the main reasons for the high recurrence rate of kidney stones.

[0004] To address this issue, a ureteroscope design capable of extracting stone fragments was proposed. In this design, the ureteroscope is equipped with a discharge mechanism to promptly remove the broken stones from the body. However, in practical applications, the broken stones easily become trapped within the discharge mechanism of the ureteroscope, resulting in low stone removal efficiency and prolonged surgical time.

[0005] Therefore, a new stone removal method is needed to improve the efficiency of stone removal. Summary of the Invention

[0006] One advantage of this application is that it provides a distal-proximal double-strike ureteroscope and a method for removing stones using a ureteroscope. The distal-proximal double-strike ureteroscope adopts a "distal-proximal double-strike" scheme, which can achieve the following: while striking the stones embedded in the kidney or movable stones, it can clear the stones blocking the suction port, thereby improving the stone removal efficiency.

[0007] Another advantage of this application is that it provides a proximal and distal double-acting ureteroscope and a method for removing stones using the ureteroscope. The proximal and distal double-acting ureteroscope can use the suction port to stop the broken stones and further strike the stones blocking the suction port, so that the stones blocking the suction port can be quickly broken up and discharged through the suction port, thereby improving the stone removal efficiency.

[0008] To achieve at least one of the above advantages, according to one aspect of this application, this application provides a distal and proximal double-sided ureteroscope, comprising:

[0009] Operations Department;

[0010] A scope body having a front end and a rear end includes: a tubular structure body, at least one infusion channel extending from the rear end to the front end within the tubular structure body, and a suction channel extending from the front end to the rear end within the tubular structure body, the suction channel having a suction port located at the front end, and an operating part operably connected to the scope body;

[0011] The first stone-dissolving mechanism includes: a first head and a first main body extending rearward from the first head, the first head protruding from the front end of the endpiece of the endoscope body for striking stones; and

[0012] The second stone-dissolving mechanism includes a second head and a second body extending rearward from the second head. The second head of the second stone-dissolving mechanism is located at the suction port of the suction channel and is used to strike stones that are blocking the suction port.

[0013] In the ureteroscope according to this application, the first head of the first stone-throwing mechanism is located in front of the second head of the second stone-throwing mechanism.

[0014] In the ureteroscope with both proximal and distal sides according to this application, the orientation of the first head is a first orientation, the orientation of the second head is a second orientation, and the first orientation and the second orientation form a preset angle, the preset angle being greater than 0° and less than 180°.

[0015] In the near and far double-click ureteroscope according to this application, the first head of the first stone-throwing mechanism is not in the laser emission path of the second stone-throwing mechanism.

[0016] In the ureteroscope according to this application, the ureteroscope body has a front end face and an outer peripheral face, the front end face extending obliquely forward from a first side of the outer peripheral face toward a second side opposite to the first side along an axis set by the ureteroscope body.

[0017] In the ureteroscope of the present application, the first head extends from the front end face, and any point on the front end face is not on the laser emission path of the first stone-throwing mechanism and the second stone-throwing mechanism.

[0018] In the ureteroscope of the present application, the first head is movably disposed at the anterior end to switch between a first state and a second state, wherein, when in the first state, the first head extends from the anterior end to a first position, and when in the second state, the first head extends from the anterior end to a second position, the distance between the first position and the anterior end being greater than the distance between the second position and the anterior end.

[0019] In the ureteroscope according to this application, the ureteroscope further includes a first optical fiber channel disposed in the body of the ureteroscope, a first stone-breaking mechanism retractably disposed in the first optical fiber channel, the first optical fiber channel having a first stone-breaking port formed at the front end, and a first head disposed in the first optical fiber channel and extending from the first stone-breaking port.

[0020] In the ureteroscope of the present application, the second head is movably disposed in the suction channel to switch between a third state and a fourth state. When in the third state, the second head extends out of the suction port to strike the stone. When in the fourth state, the second head retracts into the suction port to strike the stone blocking the suction port.

[0021] In the ureteroscope according to this application, the main body of the endoscope further includes a second optical fiber channel communicating with the suction channel, the second stone-throwing mechanism being retractably disposed in the second optical fiber channel, the second optical fiber channel including a main body segment and a connecting segment extending between the main body segment and the suction channel, the connecting segment communicating the suction channel and the main body segment, and the second head extending into the suction channel through the connecting segment.

[0022] In the ureteroscope with both proximal and distal sides according to this application, the main body of the tubular structure has a front end face and an outer peripheral face, and the suction port is formed on the front end face, wherein the front end face extends obliquely forward from a first side of the outer peripheral face to a second side opposite to the first side along an axis set by the main body of the ureteroscope.

[0023] In the ureteroscope of the present application, the angle between the central axis of the connecting segment and the central axis of the suction channel ranges from 0° to 45°.

[0024] In the ureteroscope according to this application, when the second stone-throwing mechanism is in the fourth state, the second stone-throwing mechanism is located in the central region of the suction port.

[0025] In the ureteroscope according to this application, when the second stone-throwing mechanism is in the fourth state, the front end of the second head is flush with the front end surface.

[0026] In the distal and proximal double-flick ureteroscope according to this application, the distal and proximal double-flick ureteroscope further includes a third stone-throwing mechanism disposed on the body of the ureteroscope, including: a third head and a third body portion extending rearward from the third head, the third head of the third stone-throwing mechanism.

[0027] In the ureteroscope of the present application, the irrigation channel has an irrigation port located at the front end, the irrigation port of the irrigation channel having a first orientation to allow fluid to be injected into the renal pelvis from the irrigation port along the irrigation channel in a first direction pointing to the first orientation, and the suction port of the suction channel having a second orientation at a predetermined angle to the first orientation to allow the fluid to be diverted in the renal pelvis and then drawn into the suction channel from the suction port in a second direction pointing to the second orientation to form a fluid loop.

[0028] According to another aspect of this application, this application also provides a method for removing stones using a ureteroscope, characterized by comprising:

[0029] The laser emitted from the first stone-breaking mechanism strikes the stones;

[0030] The broken stones are guided to the suction port of the suction channel through fluid circulation; and

[0031] The laser emitted by the second stone-breaking mechanism strikes the stone blocking the suction port, thereby breaking up the stone and allowing it to be discharged through the suction port.

[0032] The further objectives and advantages of this application will become fully apparent from the following description and accompanying drawings.

[0033] These and other objects, features and advantages of this application are fully apparent from the following detailed description, the accompanying drawings and the claims. Attached Figure Description

[0034] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0035] Figure 1 The illustration shows a schematic diagram of a distal and proximal double-click ureteroscope according to an embodiment of the present application.

[0036] Figure 2The illustration shows a schematic diagram of the main body of a ureteroscope according to an embodiment of the present application.

[0037] Figure 3A The illustration shows one of the partial schematic diagrams of the main body of a ureteroscope according to an embodiment of the present application.

[0038] Figure 3B The illustration shows a second partial schematic diagram of the main body of a ureteroscope according to an embodiment of this application.

[0039] Figure 3C The illustration shows a partial schematic diagram of the main body of a ureteroscope according to an embodiment of this application.

[0040] Figure 3D The illustration shows a partial schematic diagram of the main body of a ureteroscope according to an embodiment of the present application.

[0041] Figure 3E The illustration shows a partial schematic diagram of the main body of a ureteroscope according to an embodiment of the present application.

[0042] Figure 4A The illustration shows a partial three-dimensional schematic diagram of a distal and proximal double-click ureteroscope according to an embodiment of the present application.

[0043] Figure 4B The illustration shows one of the partial cross-sectional schematic diagrams of a ureteroscope with both proximal and distal sides according to an embodiment of this application.

[0044] Figure 4C The illustration shows a second partial three-dimensional cross-sectional view of a ureteroscope with both near and far-field double-click capability according to an embodiment of this application.

[0045] Figure 5A The figure shows a partial perspective view of a modified embodiment of a near-far double-click ureteroscope according to an embodiment of the present application.

[0046] Figure 5B The illustration shows a partial cross-sectional schematic diagram of a distal and proximal double-click ureteroscope according to a modified embodiment of the present application.

[0047] Figure 5C The illustration shows a second partial cross-sectional schematic diagram of a distal and proximal double-click ureteroscope according to a modified embodiment of the present application.

[0048] Figure 6A The illustration shows a partial perspective view of a ureteroscope with a near-far double-click configuration according to another modified embodiment of the present application.

[0049] Figure 6BThe illustration shows one of the partial cross-sectional schematic diagrams of a distal and proximal double-click ureteroscope according to another modified embodiment of the present application.

[0050] Figure 6C The illustration shows a second partial cross-sectional schematic diagram of a ureteroscope with a near-far double-click configuration according to another modified embodiment of the present application.

[0051] Figure 7A The illustration shows a partial perspective view of a ureteroscope with a near-far double-click configuration according to yet another modified embodiment of the present application.

[0052] Figure 7B The illustration shows one of the partial cross-sectional schematic diagrams of a ureteroscope with a near-far double-click configuration according to yet another modified embodiment of the present application.

[0053] Figure 7C The illustration shows a second partial cross-sectional schematic diagram of a ureteroscope with a near-far double-click configuration according to yet another modified embodiment of the present application.

[0054] Figure 8A The illustration shows a partial perspective view of a ureteroscope with a near-far double-click configuration according to yet another modified embodiment of the present application.

[0055] Figure 8B The illustration shows one of the partial cross-sectional schematic diagrams of a ureteroscope with a near-far double-click configuration according to yet another modified embodiment of the present application.

[0056] Figure 8C The illustration shows a second partial cross-sectional schematic diagram of a ureteroscope with a near-far double-click configuration according to yet another modified embodiment of the present application.

[0057] Figure 9A The illustration shows a partial perspective view of a ureteroscope with a near-far double-click configuration according to yet another modified embodiment of the present application.

[0058] Figure 9B The illustration shows one of the partial cross-sectional schematic diagrams of a ureteroscope with a near-far double-click configuration according to yet another modified embodiment of the present application.

[0059] Figure 9C The illustration shows a second partial cross-sectional schematic diagram of a ureteroscope with a near-far double-click configuration according to yet another modified embodiment of the present application.

[0060] Figure 10A The illustration shows one of the working processes of a distal and proximal double-click ureteroscope according to an embodiment of this application.

[0061] Figure 10B The illustration shows a second schematic diagram of the working process of a distal and proximal double-click ureteroscope according to an embodiment of this application.

[0062] Figure 10C The illustration shows the third schematic diagram of the working process of the distal and proximal double-click ureteroscope according to an embodiment of this application.

[0063] Figure 11 The illustration shows a flowchart of a method for removing stones using a ureteroscope according to an embodiment of this application. Detailed Implementation

[0064] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.

[0065] Application Overview

[0066] As mentioned earlier, in practical applications, when ureteroscopes are used to break up stones, if the stones are large, traditional ureteroscopes cannot easily pulverize them after breaking them down to an equivalent diameter of about 2 mm.

[0067] To address this issue, a ureteroscope design capable of extracting stone fragments was proposed. In this design, the ureteroscope is equipped with a discharge mechanism to promptly remove the broken stones from the body. However, in practical applications, the broken stones easily become trapped within the discharge mechanism of the ureteroscope, resulting in low stone removal efficiency and prolonged surgical time.

[0068] Specifically, there are currently two main solutions to prevent broken stones from causing blockages. The first is to break the broken stones into smaller ones before they enter the discharge mechanism. The second is to clear or clean the broken stones that are causing blockages.

[0069] During the implementation of the first approach, it was found that when a stone is lodged within tissues or organs, it is restrained by the tissues or organs after being impacted, making it difficult to move backward. Consequently, it absorbs most of the laser's energy and is thus easily broken up. However, the newly broken stone is still movable. When the laser acts on a movable stone, because it is not fixed in place, it will be bounced away by the impact and escape, making it difficult to break up further. Therefore, this method of stone removal is inefficient.

[0070] During the implementation of the second approach, it was found that the process of switching back and forth between breaking up the stones and clearing the obstructing stones was cumbersome and time-consuming. Specifically, in the process of removing stones using a ureteroscope, firstly, the stones embedded in the tissues and organs are broken up using a laser. Then, if the broken stones are large in size, or if a large number of broken stones rush towards the discharge outlet of the drainage mechanism at the same time, they will block the outlet. It is necessary to clear or remove the obstructing stones. Then, the stones embedded in the tissues and organs are broken up again. When the obstruction is more severe, the stones blocking the drainage mechanism are cleared or removed. This process is repeated, and the stone removal efficiency is also low, and the operation time is long.

[0071] The inventors of this application discovered that, in traditional stone removal processes, the asynchronous striking of the stone and clearing of obstructing stones is one of the reasons for the low removal efficiency. Accordingly, the inventors of this application have implemented a relatively simple method to synchronize stone striking and clearing, thereby improving stone removal efficiency and shortening the operation time. Furthermore, during stone clearing, while striking stones lodged in the kidney or movable stones, stones obstructing the suction channel are simultaneously cleared, further enhancing stone removal efficiency.

[0072] Based on this, this application proposes a distal and proximal double-click ureteroscope, comprising: an operating part; a ureteroscope body having a front end and a rear end, including: a tubular structure body, at least one irrigation channel extending from the rear end to the front end within the tubular structure body, and a suction channel extending from the front end to the rear end within the tubular structure body, the suction channel having a suction port located at the front end; a first stone-dissolving mechanism, including: a first head and a first main body extending rearward from the first head, the first head protruding from the front end of the ureteroscope body for striking stones; and a second stone-dissolving mechanism, including: a second head and a second main body extending rearward from the second head, the second head of the second stone-dissolving mechanism being located at the suction port of the suction channel for striking stones obstructing the suction port.

[0073] Exemplary ureteroscope

[0074] like Figures 1 to 10C As shown, a double-sided ureteroscope 100 according to an embodiment of this application is illustrated. For ease of explanation, the double-sided ureteroscope 100 is described using the treatment of stones c in the renal pelvis as an example.

[0075] The aforementioned double-flash ureteroscope 100 can be used to examine the condition of the kidneys, break up stones c in the renal pelvis p, and guide the broken stones out. In this embodiment, the double-flash ureteroscope 100 includes: a ureteroscope body 10 having a front end 110 and a rear end 120; an operating part 20 operably connected to the rear end 120 of the ureteroscope body 10; and a first stone-breaking mechanism 14 and a second stone-breaking mechanism 15, such as... Figure 1 As shown.

[0076] In practical applications, the endoscope body 10 serves as the insertion part of the distal-proximal double-sided ureteroscope 100, extending from the urethra into the ureter or kidney. An image acquisition device 300 and a light source 400 can be mounted on the endoscope body 10 to capture images of the kidney and stones located within it. Preferably, the endoscope body 10 has a smooth outer surface, or the outer surface of the endoscope body 10 is smooth after entering the patient's body, allowing the endoscope body 10 to smoothly enter the kidney. The operating part 20 acts as a bridge connecting the distal-proximal double-sided ureteroscope 100 to external devices, communicatively connecting to an image output device 500 (e.g., a computer communicatively connected to the image acquisition device 300) to acquire images of the kidney and stones located within it, thereby facilitating the user's observation of the stones c within the renal pelvis p. Furthermore, operable components (e.g., the guiding mechanism 600, the injection device 700, and the suction device 800) can be operated through the operating part 20 for other functional operations. For example, a suction device 800 connected to the endoscope body 10 via the operating section 20 can be used to aspirate fragmented stones within the kidney. The first stone-dissolving mechanism 14 can be used to dissolve stones c lodged in the kidney or movable stones within the kidney, and the second stone-dissolving mechanism 15 can be used to dissolve stones obstructing the suction port.

[0077] Specifically, the endoscope body 10 includes a tubular structure body 11, at least one infusion channel 12, and a suction channel 13, such as... Figure 2 As shown. The at least one infusion channel 12 extends from the rear end 120 to the front end 110 within the tube structure body 11, and the suction channel 13 extends from the front end 110 to the rear end 120 within the tube structure body 11. Preferably, the infusion channel 12 and the suction channel 13 are independent of each other, so that guiding fluid through the infusion channel 12 to impact and break up the stones within the kidney, and simultaneously suctioning the fluid carrying the broken stones into the suction channel 13, can be performed without interference between impacting and suctioning the stones.

[0078] like Figures 2 to 3EAs shown, the at least one infusion channel 12 has at least one infusion port 121 located at the front end 110 and at least one first operating port 122 communicating with the at least one infusion port 121. Fluid can reach the kidney from the infusion port 121 and impact the broken stones within the kidney. The suction channel 13 has a suction port 131 located at the front end 110 and a second operating port 132 communicating with the suction port 131. When fluid carrying broken stones reaches the vicinity of the suction port 131, it can be attracted to the suction port 131 and enter the suction channel 13 from the suction port 131, forming a water flow loop. That is, the broken stones can enter the suction channel 13 from the suction port 131 through the water flow loop.

[0079] Accordingly, the operation unit 20 includes an operation body 21, a first operation end 22 disposed on the operation body 21 and connected to the infusion channel 12, and a second operation end 23 disposed on the operation body 21 and connected to the suction channel 13. The operation unit 20 is connected to the infusion channel 12 via its first operation end 22 connected to the first operation port 122, and to the suction channel 13 via its second operation end 23 connected to the second operation port 132. The first operation end 22 is adapted to connect to an injection device 700, allowing the injection device 700 to inject fluid into the renal pelvis p through the infusion channel 12 to impact and break up stones. The second operation end 23 is adapted to connect to a suction device 800 (e.g., an air pump), allowing the suction device 800 to aspirate fluid and broken up stones near the suction channel 13 through the suction channel 13. In order to control the negative pressure in the suction channel 13, in one specific embodiment of this application, the operation unit 20 further includes a negative pressure regulator 27, which is configured to regulate the air pressure in the suction channel 13.

[0080] It should be understood that the functions of the first operating terminal 22 and the second operating terminal 23 are not limited to those described in this application. The first operating terminal 22 and the second operating terminal 23 are also adapted to allow other devices to perform other functional operations. For example, the first operating terminal 22 is adapted to allow the guide mechanism 600 to pass through the infusion channel 12 and guide the endoscope body 10 to the target position. It should also be understood that the operating unit 20 may include other operating terminals to allow other devices to perform other functional operations.

[0081] It is worth mentioning that in practical applications, when the size of the broken stones is large, or when a large number of broken stones simultaneously rush towards the suction port 131, blockage can easily occur. In traditional stone removal methods, the broken stones before entering the suction port 131 can be struck again to prevent them from clogging the suction port 131 due to their large size. However, during this process, the broken stones are in a movable state and are prone to escape under impact, making them difficult to break further. This method of stone removal is inefficient. Alternatively, the broken stones that have already caused blockages can be cleared or cleaned. However, this requires switching back and forth between striking and cleaning the blocked stones, which is cumbersome, inefficient, and time-consuming.

[0082] Specifically, in this embodiment, a relatively simple method is used to simultaneously dislodge and clear the stones. Specifically, based on the state and location of the stones, kidney stones can be classified as: stones embedded in the kidney (c), movable stones, and obstructive stones (e.g., stones obstructing the suction port 131). Stones embedded in the kidney (c) and movable stones are distal stones, while stones obstructing the suction port 131 are proximal stones. Both movable and obstructive stones are stones that are broken up. The dual-light, distal-proximal-double-strike ureteroscope 100 uses a "distal-proximal double-strike" scheme to simultaneously dislodge and clear the stones; that is, while dislodgeting distal stones, it simultaneously clears proximal stones obstructing the suction port 131, thereby improving stone removal efficiency. Furthermore, the suction port 131 is used to stop the broken stones, further striking the stones blocking the suction port 131. In this way, the stones blocking the suction port 131 are quickly broken up and discharged through the suction port 131, thereby improving the stone discharge efficiency and thus improving the stone removal efficiency.

[0083] In this embodiment, a stone-dispelling mechanism (distal stone-dispelling mechanism) for striking distal stones and a stone-dispelling mechanism (proximal stone-dispelling mechanism) for striking stones blocking the suction port 131 are provided. The stone removal efficiency is improved through the cooperation of the distal and proximal stone-dispelling mechanisms. The distal and proximal stone-dispelling mechanisms can be implemented as holmium lasers, or other laser mechanisms capable of emitting lasers, or other mechanisms capable of striking stones; this is not limited to the present application.

[0084] Accordingly, in this embodiment, the first stone-breaking mechanism 30 is designed as a distal stone-breaking mechanism, and the second stone-breaking mechanism 40 is designed as a proximal stone-breaking mechanism. The first stone-breaking mechanism 30 includes a first head 31 and a first main body 32 extending rearward from the first head 31. A laser generated by the first stone-breaking mechanism 30 is emitted from the first head 31, which protrudes from the front end 110 of the endoscope body 10, and is used to strike stones embedded in the kidney and to break up any stones. The second stone-breaking mechanism 40 includes a second head 41 and a second main body 42 extending rearward from the second head 41. A laser generated by the second stone-breaking mechanism 40 is emitted from the second head 41. The second head 41 of the second stone-breaking mechanism 40 is located at the suction port 131 of the suction channel 13, and is used to strike stones blocking the suction port 131. The first head 31 of the first stone-breaking mechanism 30 is located in front of the second head 41 of the second stone-breaking mechanism 40.

[0085] It is worth mentioning that during the process of clearing stones clogging the suction port 131, the first stone-breaking mechanism 30 and the second stone-breaking mechanism 40 can cooperate with each other to improve the stone removal efficiency. For example, the projection of the first head 31 of the first stone-breaking mechanism 30 corresponds to the suction port 131 on the axial direction of the endoscope body 10. In this way, after the first stone-breaking mechanism 30 breaks the stone, the broken stone corresponds to the suction port 131 and can more easily enter the suction channel 13 from the suction port 131, which can improve the stone extraction efficiency, thereby improving the stone removal efficiency and shortening the operation time.

[0086] For example, when broken stones block the suction port 131, the second stone-breaking mechanism 40 can further break up or disperse at least some of the broken stones. The first stone-breaking mechanism 30 can cooperate with the second stone-breaking mechanism 40 to strike stones impacted in the laser emission path of the first stone-breaking mechanism 30, thereby quickly breaking up the dispersed stones, making them smaller and easier to be discharged through the suction channel 13, thus improving the stone removal efficiency.

[0087] Preferably, the laser emission paths of the first stone-breaking mechanism 30 and the second stone-breaking mechanism 40 intersect, so that the stone impacted by the second stone-breaking mechanism 40 can reach the emission path of the first stone-breaking mechanism 30, which intersects with the laser emission path of the second stone-breaking mechanism 40, and thus be broken up. Specifically, the laser emitted from the second stone-breaking mechanism 40 can impact the stone blocking the suction port 131, causing the stone blocking the suction port 131 to move along the S direction to the laser emission path of the first stone-breaking mechanism 30. The laser emitted from the first stone-breaking mechanism 30 strikes the stone impacted onto the laser emission path of the first stone-breaking mechanism 30 at an angle T to the S direction, so that the stone moving along the S direction is instantly subjected to a force in the T direction at an angle to the S direction. In this way, the stone can be broken up into smaller stones relatively quickly, making it easier to be discharged through the suction channel 13, thereby improving the stone removal efficiency.

[0088] In one specific embodiment of this application, the orientation of the first head 31 and the orientation of the second head 41 are not parallel. The laser generated by the first striking mechanism 30 is emitted along the direction pointed to by the orientation of the first head 31, and the laser generated by the second striking mechanism 40 is emitted along the direction pointed to by the orientation of the second head 41. In this way, the laser emitted from the second head 41 is not parallel to the laser emitted from the second head 41, so that the laser emission path of the first striking mechanism 30 intersects with the laser emission path of the second striking mechanism 40.

[0089] Accordingly, in this specific embodiment, the orientation of the first head 31 is a first orientation, the orientation of the second head 41 is a second orientation, and the first orientation and the second orientation form a preset angle, wherein the preset angle is greater than 0° and less than 180°.

[0090] It should be understood that the laser emission path of the first stone-striking mechanism 30 and the laser emission path of the second stone-striking mechanism 40 can be intersected through other embodiments. For example, the laser emission direction of the first stone-striking mechanism 30 and / or the laser emission direction of the second stone-striking mechanism 40 can be designed to be adjustable, which is not limited to this application.

[0091] It should be noted that when the orientation of the first head 31 and the orientation of the second head 41 are not parallel, the first head 31 of the first stone-throwing mechanism 30 must avoid the laser emitted by the second stone-throwing mechanism 40 to prevent damage to the first head 31. Accordingly, the first head 31 is not on the laser emission path of the second stone-throwing mechanism 40, that is, the first head 31 is deviated from the laser emission path of the second stone-throwing mechanism 40.

[0092] Preferably, the first head 31 of the first stone-breaking mechanism 30 is movably disposed on the front end portion 110, so that the first stone-breaking mechanism 30 can more flexibly cooperate with the second stone-breaking mechanism 40. In a specific example of this application, the first head 31 is retractably disposed on the endoscope body 10 to switch between a first state and a second state. When in the first state, the first head 31 extends from the front end portion 110 to a first position; when in the second state, the first head 31 extends from the front end portion 110 to a second position. The distance between the first position and the front end portion 110 is greater than the distance between the second position and the front end portion 110. Thus, when the first stone-breaking mechanism 30 is in the first state, it can be used to strike stones that are far from the front end portion 110; when the first stone-breaking mechanism 30 is in the second state, it can be used to strike stones that are close to the front end portion 110.

[0093] Specifically, in this embodiment of the application, the endoscope body 10 further includes a first optical fiber channel 14 disposed on the tube structure body 11, the first stone-breaking mechanism 30 is retractably disposed on the first optical fiber channel 14, the first optical fiber channel 14 has a first stone-breaking port 141 formed at the front end 110 and a third operating port 142 formed at the rear end 120, and the first head 31 is disposed on the first optical fiber channel 14 and extends out from the first stone-breaking port 141.

[0094] Accordingly, the operating unit 20 further includes a third operating end 24 connected to the first optical fiber channel 14, the third operating end 24 being connected to the third operating port 142 to connect to the first optical fiber channel 14. The third operating end 24 allows the first stone-dissolving mechanism 30 to pass through and enter the first optical fiber channel 14 from the third operating port 142. That is, the first stone-dissolving mechanism 30 can enter the first optical fiber channel 14 from the third operating port 142 through the third operating end 24 of the operating unit 20, and then enter the kidney to dissolve the stones.

[0095] Further, the endoscope body 10 has a front end face 1101 and an outer peripheral face 1102. In this embodiment, the first lithotripsy port 141 is formed on the front end face 1101 of the endoscope body 10, and the front end face 1101 is designed to extend obliquely forward from a first side of the outer peripheral face 1102 toward a second side opposite to the first side along the axial direction set by the endoscope body 10. For example, the front end face 1101 of the tubular structure body 11 extends obliquely forward from the lower side of the outer peripheral face 1102 toward the upper side opposite to the lower side along the axial direction set by the endoscope body 10, such as... Figure 3A As shown.

[0096] It is worth mentioning that any point on the front end face 1101 is not on the laser emission path of the first stone-breaking mechanism 30 and the second stone-breaking mechanism 40, so as to avoid the front end face 1101, which extends obliquely between the first side and the second side of the outer peripheral surface 1102, blocking the laser emitted by the first stone-breaking mechanism 30 and the second stone-breaking mechanism 40, thus affecting the striking effect of the first stone-breaking mechanism 30 and the second stone-breaking mechanism 40 on the stones. At the same time, it avoids the laser emitted by the first stone-breaking mechanism 30 and the second stone-breaking mechanism 40 from damaging the front end face 1101.

[0097] In this embodiment, the first crushing inlet 141 is located to the side of the suction inlet 131, and the first head 31 extends from the side of the suction inlet 131. In a modified embodiment of this application, the first head 31 may also extend from the suction inlet 131, which is not limited to this application.

[0098] Accordingly, in a modified embodiment of this application, the first head 31 is movably disposed within the suction channel 13 to switch between a first extended state, a second extended state, and a first retracted state. When in the first extended state, the first head 31 extends from the suction port 131 to a third position to strike stones that are far from the front end portion 110. When in the second extended state, the first head 31 extends to a fourth position to strike stones that are close to the front end portion 110. When in the first retracted state, the first head 31 retracts to the suction port 131 to strike stones that are blocking the suction port 131. The distance between the third position and the front end portion 110 is greater than the distance between the fourth position and the front end portion 110.

[0099] In a modified embodiment of this application, the first stone-striking mechanism 30 may be placed within the attraction channel 13. For example, the attraction channel 13 may be used as the first optical fiber channel 14, or the first optical fiber channel 14 may be disposed within the attraction channel 13. This is not limited to the present application.

[0100] In other specific examples of this application, the first stone-throwing mechanism 30 may also be fixed to the endoscope body 10, which is not limited to this application.

[0101] Preferably, the second head 41 of the second stone-dissolving mechanism 40 is movably disposed in the suction channel 13 to switch between a third state and a fourth state. When in the third state, the second head 41 extends out of the suction port 131 to strike the stones. When in the fourth state, the second head 41 retracts into the suction port 131 to strike the stones blocking the suction port 131.

[0102] In practical applications, when the suction port 131 is not blocked, the second stone-dissolving mechanism 40 and the first stone-dissolving mechanism 30 can jointly strike the kidney stone c embedded in the kidney or the movable stone that has not reached the suction port 131; when the suction port 131 is blocked, the first stone-dissolving mechanism 30 continues to strike the kidney stone c embedded in the kidney or the movable stone, and the second stone-dissolving mechanism 40 switches to the second state, that is, retracts to the suction port 131 to strike the stone blocking the suction port 131.

[0103] During the process of the second stone-breaking mechanism 40 and the first stone-breaking mechanism 30 jointly striking the stone c embedded in the kidney, the first stone-breaking mechanism 30 and the second stone-breaking mechanism 40 can strike the same position of the stone at the same time, or strike adjacent positions of the stone at the same time. In this way, the stone is more easily broken up, which can improve the stone-breaking efficiency and thus improve the stone removal efficiency.

[0104] During the process of the second striking mechanism 40 and the first striking mechanism 30 jointly striking the movable stone, the first striking mechanism 30 and the second striking mechanism 40 can cooperate with each other. For example, the first striking mechanism 30 can emit a laser to strike the movable stone. When the stone impacted by the laser moves along a third direction to the emission path of the second striking mechanism 40, it is struck by the second striking mechanism 40 in a fourth direction at an angle to the third direction, making the stone easier and faster to break up, thereby improving the stone removal efficiency. Of course, the second striking mechanism 40 can also impact the movable stone into the laser emission path of the first striking mechanism 30 to quickly break up the movable stone.

[0105] It is worth mentioning that when the size of the broken stones is large or a large number of broken stones are simultaneously guided to the suction port 131, the broken stones will become stuck in the suction port 131, causing the suction port 131 to become blocked, which is not conducive to the removal of the stones and results in low stone removal efficiency. In the embodiment of this application, the blocking effect of the suction port 131 on the broken stones provides convenience for the targeted striking of the stones.

[0106] As mentioned earlier, the freshly broken stones are in a movable state. When the laser acts on the broken stones, because they are not fixed, they will be bounced away by the impact force and escape, making it difficult to further break them. When the broken stones are stuck in the suction port 131, their position is relatively stable, and the second stone-breaking mechanism 40 located in the suction port 131 can strike the stones blocking it. During the process of the second stone-breaking mechanism 40 striking the stones blocking the suction port 131, the stones blocking the suction port 131 abut against the inner peripheral wall of the suction channel 13. When the impact force generated by the second stone-breaking mechanism 40 acts on the broken stones, the broken stones will bear most of the energy generated by the second stone-breaking mechanism 40, thus they can be further broken up more quickly. In this way, not only can the efficiency of stone fragmentation be improved, but the fragmented stones can also be broken into smaller stones, which can be quickly discharged through the suction channel 13, thereby improving the efficiency of stone discharge and stone removal.

[0107] In a specific example of this application, the endoscope body 10 further includes a second optical fiber channel 15 communicating with the suction channel 13. The second stone-throwing mechanism 40 is retractably disposed in the second optical fiber channel 15. The second head 41 of the second stone-throwing mechanism 40 extends into the suction channel 13 through the second optical fiber channel 15 to extend out of the suction port 131 or reach the suction port 131. That is, the second head 41 of the second stone-throwing mechanism 40 can enter the suction channel 13 along the second optical fiber channel 15 and extend out of the suction port 131 or reach the suction port 131.

[0108] In this embodiment of the application, the second optical fiber channel 15 extends between the suction channel 13 and the rear end portion 120 of the endoscope body 10. The second optical fiber channel 15 has a communication port 151 connected to the suction channel 13 and a fourth operation port 152 connected to the communication port 151 and located at the rear end portion 120.

[0109] Accordingly, the operating unit 20 includes an operating end connected to the second optical fiber channel 15. In a specific example of this application, the third operating end 24 of the operating unit 20 is connected to the fourth operating port 152 to connect to the second optical fiber channel 15. The third operating end 24 allows the second stone-dissolving mechanism 40 to pass through and enter the second optical fiber channel 15 and the suction channel 13 connected to the second optical fiber channel 15 from the fourth operating port 152. That is, the second stone-dissolving mechanism 40 can enter the second optical fiber channel 15 and the suction channel 13 connected to the second optical fiber channel 15 from the fourth operating port 152 through the third operating end 24 of the operating unit 20, and then enter the kidney to dissolve the stones. In other specific embodiments of this application, the operating unit 20 further includes other operating ends connected to the second optical fiber channel 15, which is not limited to this application.

[0110] In this embodiment, the second optical fiber channel 15 includes a main body segment 154 and a connecting segment 155 extending between the main body segment 154 and the attraction channel 13. The connecting segment 155 connects the attraction channel 13 and the main body segment 154, and the second head 41 extends into the attraction channel 13 through the connecting segment 155. Specifically, the connecting segment 155 has a connecting port 151 that communicates with the attraction channel 13, and is connected to the attraction channel 13 through the connecting port 151. Furthermore, the connecting segment 155 extends obliquely upward from the main body segment 154 into the attraction channel 13 along a predetermined direction.

[0111] In a specific example of this application, the angle between the preset extension direction and the central axis of the suction channel 13 ranges from 0° to 45°. Correspondingly, the angle between the central axis of the connecting segment 155 and the central axis of the suction channel 13 also ranges from 0° to 45°, allowing the second head 41 of the second striking mechanism 40 to extend along the connecting segment 155 at an angle of 0° to 45° to the central axis of the suction channel 13 into the suction port 131. It should be understood that the steeper the connecting segment 155, the closer its central axis coincides with the central axis of the suction channel 13, and the faster the second striking mechanism 40 passes through the suction channel 13 and extends out of the suction port 131. The angle between the central axis of the connecting segment 155 and the central axis of the suction channel 13 can also be other angles, such as 30° or 60°, but this is not limited to the present application.

[0112] Further, in this specific example, the suction port 131 is formed on the front end face 1101. When the second stone-throwing mechanism 40 is in the second state, the front end of the second head 41 of the second stone-throwing mechanism 40 is flush with the surface formed by the outer edge of the suction port 131. The outer edge of the suction port 131 refers to the inner peripheral edge of the inner peripheral wall of the suction channel 13. When the suction port 131 is formed on the front end face 1101, the front end of the second head 41 is flush with the front end face 1101.

[0113] Further, in this specific example, the front end face 1101 is designed to extend obliquely forward from a first side of the outer peripheral face 1102 toward a second side opposite to the first side along the axial direction set by the endoscope body 10. The suction port 131 formed on the front end face 1101 extends obliquely forward from a first side of the suction channel 13 toward a second side opposite to the first side along the axial direction set by the endoscope body 10. The first side of the outer peripheral face 1102 corresponds to the first side of the suction channel 13, and the second side of the outer peripheral face 1102 corresponds to the second side of the suction channel 13. Accordingly, the shape of the suction port 131 is approximately elliptical.

[0114] Specifically, the front end surface 1101 may be designed as a convex inclined surface, a concave inclined surface, a wavy inclined surface, or other types of inclined surface formed between the first and second sides of the outer peripheral surface 1102, and is not limited to this application. In a specific example of this application, the front end surface 1101 is designed as a wavy inclined surface with a central concave shape formed between the first and second sides of the outer peripheral surface 1102.

[0115] It should be understood that in other embodiments, the front end face 1101 of the tubular structure body 11 may also be designed such that the front end face 1101 of the tubular structure body 11 extends flush with the first side of the outer peripheral surface 1102 to the second side opposite to the first side along the axial direction set by the endoscope body 10 (that is, the end of the front end face 1101 near the first side of the suction channel 13 is axially flush with the end of the second side of the suction channel 13), and this is not limited to the present application.

[0116] It is worth mentioning that when the front end face 1101 is designed to extend forward at an angle from the first side of the outer peripheral face 1102 to the second side opposite to the first side along the axis set by the endoscope body 10, it can provide a relatively large distribution space for the suction port 131. Correspondingly, the size of the suction port 131 is relatively increased, which allows more broken stones to pass through the suction channel 13 relatively quickly, avoiding the broken stones from blocking the suction port 131, improving the stone extraction efficiency, and thus improving the stone removal efficiency.

[0117] In this specific example, the length of the second head 41 of the second stone-throwing mechanism 40 extending beyond the suction port 131 is less than or equal to 10 mm. In one specific embodiment, the length of the second head 41 extending beyond the suction port 131 is less than or equal to 5 mm. In another specific embodiment, the length of the second head 41 extending beyond the suction port 131 is greater than 5 mm and less than 10 mm. In other specific examples of this application, the length of the second head 41 of the second stone-throwing mechanism 40 extending beyond the suction port 131 may be greater than 10 mm, which is not limited to this application.

[0118] In this specific example, when the second stone-striking mechanism 40 is in the second state, the second head 41 of the second stone-striking mechanism 40 is located in the central region of the suction port 131. Specifically, during the process of the second stone-striking mechanism 40 switching from the first state to the second state, the second stone-striking mechanism 40 can retract along the connecting section 155 in the opposite direction of the preset direction. When the second stone-striking mechanism 40 retracts to the suction port 131, the second head 41 of the second stone-striking mechanism 40 is located in the central region of the suction port 131.

[0119] It is worth noting that the position where the stone blocking the suction port 131 abuts against the inner peripheral wall of the suction channel 13 is uncertain. When striking the stone blocking the suction port 131 from the peripheral area formed around the central region, the stone may still remain stuck in the suction port 131, resulting in low stone fragmentation efficiency. For example, the first and second parts of the stone blocking the suction port 131 may abut against the inner peripheral walls forming the first and second peripheral areas, respectively, thus becoming stuck in the suction port 131. When the second stone-breaking mechanism 40 strikes the first part of the stone blocking the suction port 131 from the first peripheral area or the second part from the second peripheral area, the stone blocking the suction port 131 may detach from the suction port 131 and enter the suction channel 13 as the stone fragments at the first or second part. However, when the second stone-dissolving mechanism 40 strikes the portion of the stone blocking the suction port 131 that is suspended in the suction port 131, the first or second portion of the stone blocking the suction port 131 may still be abutting against the inner peripheral wall and stuck in the suction port 131. When the second stone-dissolving mechanism 40 strikes the stone blocking the suction port 131 from the central region of the suction port 131, the central portion of the stone blocking the suction port 131 is broken, and the stone blocking the suction port 131 will dissipate from its central portion and detach from the suction port 131. Therefore, preferably, when the second stone-dissolving mechanism 40 is in the second state, the second head 41 of the second stone-dissolving mechanism 40 is located in the central region of the suction port 131. It should be understood that when the second stone-striking mechanism 40 is in the second state, the second head 41 of the second stone-striking mechanism 40 may also be located in other positions of the suction port 131, which is not limited by this application.

[0120] In a modified embodiment of the present application, the second stone-striking mechanism 40 may also be disposed within the suction channel 13. For example, the suction channel 13 may be used as the second optical fiber channel 15, or the second optical fiber channel 15 may be disposed within the suction channel 13, and the second optical fiber channel 15 may have a second operating port 153 located at the suction port 131. This is not limited to the present application.

[0121] In other specific examples of this application, the second head 41 may also be fixedly disposed at the suction port 131, which is not limited to this application.

[0122] In this embodiment, the distal and proximal double-flick ureteroscope 100 further includes a third stone-breaking mechanism 50 disposed on the ureteroscope body 10. The third stone-breaking mechanism 50 includes a third main body portion 52 and a third head portion 51 extending forward from the third main body portion 52. Preferably, the laser emission path of the third stone-breaking mechanism 50 intersects with the laser emission path of the first stone-breaking mechanism 30 and / or the laser emission path of the second stone-breaking mechanism 40, so as to quickly break up the stones through the cooperation of the first stone-breaking mechanism 30, the second stone-breaking mechanism 40 and the third stone-breaking mechanism 50, thereby improving the stone-breaking efficiency and thus improving the stone removal efficiency.

[0123] It is worth mentioning that, in this embodiment, the projection of the third head 51 onto the axial direction of the endoscope body 10 corresponds to the suction port 131. Thus, after the third stone-breaking mechanism 50 breaks up the stone, the broken stone corresponds to the suction port 131, making it easier for it to enter the suction channel 13 from the suction port 131, thereby improving the stone extraction efficiency and ultimately increasing the stone removal efficiency.

[0124] In this embodiment, the third head 51 of the third stone-breaking mechanism 50 is disposed at the front end portion 110. Preferably, the third head 51 of the third stone-breaking mechanism 50 is movably disposed at the front end portion 110. In a specific example of this application, the third stone-breaking mechanism 50 is retractably disposed within the endoscope body 10 to switch between a fifth state and a sixth state. When in the fifth state, the third head 51 extends from the front end portion 110 to the fifth position; when in the sixth state, the third head 51 extends from the front end portion 110 to the sixth position. The distance between the fifth position and the front end portion 110 is greater than the distance between the sixth position and the front end portion 110. Thus, when the third stone-breaking mechanism 50 is in the fifth state, it can be used to strike stones that are far from the front end portion 110; when the third stone-breaking mechanism 50 is in the sixth state, it can be used to strike stones that are close to the front end portion 110.

[0125] In this embodiment of the application, the endoscope body 10 further includes a third optical fiber channel 16 disposed on the tube structure body 11. The third optical fiber channel 16 has a third lithotripsy port 161 formed on the front end face 1101 and a fifth operation port 162 formed on the rear end face 120. The third head 51 is disposed on the third optical fiber channel 16 and extends out from the third lithotripsy port 161.

[0126] Accordingly, the operating unit 20 includes an operating end connected to the third optical fiber channel 16. In one specific example of this application, the third operating end 24 of the operating unit 20 is connected to the fifth operating port 162 to connect to the third optical fiber channel 16. The third operating end 24 allows the third stone-breaking mechanism 50 to pass through and enter the third optical fiber channel 16 from the fifth operating port 162. That is, the third stone-breaking mechanism 50 can enter the third optical fiber channel 16 from the fifth operating port 162 through the third operating end 24 of the operating unit 20, and then enter the kidney to break up the stones. In other specific embodiments of this application, the operating unit 20 further includes other operating ends connected to the third optical fiber channel 16, which is not limited to this application.

[0127] In one specific example of this application, the length of the third head 51 of the third stone-breaking mechanism 50 extending out of the third stone-breaking opening 161 is less than or equal to 10 mm. In other specific examples of this application, the length of the third head 51 of the third stone-breaking mechanism 50 extending out of the third stone-breaking opening 161 is greater than 10 mm. This is not a limitation of this application.

[0128] In this embodiment, the third crushing port 161 is formed on the side of the suction port 131, and the third head 51 extends from the side of the suction port 131. In a modified embodiment of this application, the third head 51 may also extend from the suction port 131, which is not limited to this application.

[0129] Accordingly, in a modified embodiment of this application, the third optical fiber channel 16 is connected to the suction channel 13, and the third head 51 of the third stone-striking mechanism 50 is movably disposed within the suction channel 13 to switch between a third extended state, a fourth extended state, and a second retracted state. When in the third extended state, the third head 51 extends from the front end portion 110 to a seventh position; when in the fourth extended state, the third head 51 extends from the front end portion 110 to an eighth position; and when in the second retracted state, the third head 51 retracts to the suction port 131, wherein the distance between the seventh position and the front end portion 110 is greater than the distance between the eighth position and the front end portion 110.

[0130] In modified embodiments of the present application, the third stone-striking mechanism 50 may also be disposed within the attraction channel 13. For example, the attraction channel 13 may be used as the third optical fiber channel 16, or the third optical fiber channel 16 may be disposed within the attraction channel 13. This is not limited to the present application.

[0131] In modified embodiments of the present application, the third stone-throwing mechanism 50 may be fixed to the endoscope body 10, but this is not a limitation of the present application.

[0132] In this embodiment, the first optical fiber channel 14, the second optical fiber channel 15, and the third optical fiber channel 16 are all located to the side of the attraction channel 13. The orientation of the first optical fiber channel 14, the second optical fiber channel 15, and the third optical fiber channel 16 is not limited by this application. For example, the first optical fiber channel 14 and the second optical fiber channel 15 can be designed such that the first optical fiber channel 14 is formed on the third side of the attraction channel 13, and the second optical fiber channel 15 is formed on the first side of the attraction channel 13. Figures 4A to 4C As shown; alternatively, it can be designed such that the first optical fiber channel 14 is formed on the third side of the attraction channel 13, and the second optical fiber channel 15 is formed on the second side of the attraction channel 13, as shown. Figures 5A to 5C As shown; it can also be designed such that: the first optical fiber channel 14 is formed on the fourth side of the attraction channel 13, and the second optical fiber channel 15 is formed on the second side of the attraction channel 13, as shown. Figures 6A to 6C As shown; or, designed as follows: the first optical fiber channel 14 is formed on the fourth side of the attraction channel 13, and the second optical fiber channel 15 is formed on the first side of the attraction channel 13, as shown. Figure 7A to Figure 7C As shown. The first side and the second side are opposite each other, the third side and the fourth side are opposite each other, and the third side and the fourth side are located between the first side and the second side.

[0133] The first fiber optic channel 14, the second fiber optic channel 15, and the third fiber optic channel 16 can be designed such that: the first fiber optic channel 14 is formed on the fourth side of the attraction channel 13, the second fiber optic channel 15 is formed on the first side of the attraction channel 13, and the third fiber optic channel 16 is formed on the third side of the attraction channel 13, as shown below. Figure 8A to Figure 8C As shown; or designed as follows: the first optical fiber channel 14 is formed on the fourth side of the attraction channel 13, the second optical fiber channel 15 is formed on the second side of the attraction channel 13, and the third optical fiber channel 16 is formed on the third side of the attraction channel 13, as shown. Figures 9A to 9C As shown.

[0134] When the front end face 1101 extends obliquely forward from the first side of the outer peripheral face 1102 toward the second side opposite to the first side along the axial direction set by the endoscope body 10, and the suction port 131 formed on the front end face 1101 extends obliquely forward from the first side of the suction channel 13 toward the second side opposite to the first side along the axial direction set by the endoscope body 10, the overall shape of the suction port 131 is similar to an ellipse. The suction port 131 has a major axis L1 and a minor axis L2. The suction port 131 has a first endpoint 11011 and a second endpoint 11012 located on the major axis L1, and a third endpoint 11013 and a fourth endpoint 11014 located on the minor axis L2. The first endpoint 11011 and the second endpoint 11012 are opposite to each other, and the first endpoint 11011 of the suction port 131 is further back than the second endpoint 11012, that is, the first endpoint 11011 is located behind the second endpoint 11012. The third endpoint 11013 and the fourth endpoint 11014 are opposite each other and are both located between the first endpoint 11011 and the second endpoint 11012.

[0135] The first side refers to the side near the first endpoint 11011, the second side refers to the side near the second endpoint 11012, the third side refers to the side near the third endpoint 11013, and the fourth side refers to the side near the fourth endpoint 11014. It should be understood that the first optical fiber channel 14, the second optical fiber channel 15, and the third optical fiber channel 16 may be formed on other sides of the attraction channel 13, for example, a fifth side between the first side and the third side; however, this is not limited to this application.

[0136] It is worth mentioning that the second optical fiber channel 15 is formed on the side of the suction channel 13, and the second stone-breaking mechanism 40 is retractably disposed within the second optical fiber channel 15. When the second stone-breaking mechanism 40 is in the third or fourth state, only the front part of the second stone-breaking mechanism 40, including the second head 41, is located in the suction channel 13, and the rear part of the second stone-breaking mechanism 40 is located within the second optical fiber channel 15, without occupying the space within the suction channel 13. In this way, the second stone-breaking mechanism 40 can be prevented from affecting the passage of the broken stones through the suction channel 13.

[0137] In the embodiments of this application, the positions of the first stone-striking mechanism 30 and the third stone-striking mechanism 50 can be interchanged, and this is not a limitation of this application.

[0138] In the embodiments of this application, the formation methods of the infusion channel 12, the suction channel 13, the first optical fiber channel 14, the second optical fiber channel 15, and the third optical fiber channel 16 are not limited to this application. The infusion channel 12, the suction channel 13, the first optical fiber channel 14, the second optical fiber channel 15, and the third optical fiber channel 16 can be formed by multiple holes in the tube structure body 11 itself, or by multiple hollow tubes working together; this is not limited to this application.

[0139] During the process of breaking up the stones, the infusion channel 12 guides fluid out of its infusion port 121 to impact and break up the stones, carrying the broken stones along with it. The suction channel 13 is under negative pressure; therefore, when the fluid carrying the broken stones moves near the suction port 131, both the fluid and the broken stones are drawn into the suction channel 13. However, the suction force within the suction channel 13 may interfere with the fluid's impact on the broken stones.

[0140] Specifically, in some specific examples of this application, the suction interference on the fluid is reduced by adjusting the relative positional relationship between the infusion port 121 and the suction port 131 and controlling the flow direction of the fluid, thereby improving the stone removal efficiency and thus improving the stone removal efficiency. The infusion port 121 of the infusion channel 12 has a first orientation to allow fluid to be injected into the renal pelvis p from the infusion port 121 in a first direction pointing to the first orientation along the infusion channel 12. The suction port 131 of the suction channel 13 has a second orientation at a preset angle to the first orientation to allow the fluid to be diverted in the renal pelvis p and then drawn into the suction channel 13 from the suction port 131 in a second direction pointing to the second orientation to form a fluid loop.

[0141] The second orientation is different from the first orientation, and the first direction is the same as the first orientation, while the second direction is opposite to the second orientation, such that the angle between the first direction and the second direction is neither 0° nor 180°. That is, the first direction and the second direction are not in the same direction, nor are they opposite to each other. In this way, the fluid ejected from the injection port 121 along the first direction flows back along the second direction, which is at an angle to the first direction, after being turned, forming a vortex-like fluid loop. This can prevent the fluid from being ejected from the injection port 121 along the first direction and flowing back directly along the opposite direction to the suction port 131, which is in the same orientation as the injection port 121, thereby reducing the interference of the negative pressure in the suction channel 13 on the fluid.

[0142] It is worth mentioning that in other specific examples of this application, the first orientation and the second orientation may be the same, and the first direction and the second direction may be in the same direction or opposite to each other. This is not limited to this application.

[0143] In this embodiment, the angle between the first direction and the second direction is greater than or equal to 90° and less than 180°. In one specific example, the second direction is parallel to or infinitely close to the axis set by the endoscope body 10, and the angle between the first direction and the axis set by the endoscope body 10 is greater than 0° and less than or equal to 90°. Correspondingly, the angle between the first direction and the second direction is greater than or equal to 90° and less than 180°. In another specific example, the first direction is parallel to or infinitely close to the axis set by the endoscope body 10, and the angle between the second direction and the axis set by the endoscope body 10 is greater than 0° and less than or equal to 90°. Correspondingly, the angle between the first direction and the second direction is greater than or equal to 90° and less than 180°.

[0144] In one specific embodiment of this application, the included angle between the central axis of the infusion port 121 and the central axis of the suction port 131 is greater than 0° and less than or equal to 90°, so that the first direction and the second direction form a preset angle.

[0145] In this embodiment, the infusion port 121 and the suction port 131 are not flush along the set axial direction of the endoscope body 10. This extends the distance between the infusion port 121 and the suction port 131, as well as the fluid's movement path. This not only reduces the interference of negative pressure in the suction channel 13 on the fluid's suction, but also, because the fluid flows over a wider area, it can carry more fragments along its movement path, thus improving the fragment removal efficiency.

[0146] Here, the fact that the infusion port 121 and the suction port 131 are not flush along the set axial direction of the endoscope body 10 means that there is a height difference between the infusion port 121 and the suction port 131 along the set axial direction of the endoscope body 10, and that the distances between the infusion port 121 and the suction port 131 and the foremost point of the endoscope body 10 are different. In a specific example, the distance between the infusion port 121 and the foremost point of the endoscope body 10 is greater than the distance between the suction port 131 and the foremost point of the endoscope body 10. That is, the suction port 131 is located in front of the infusion port 121 along the set axial direction of the endoscope body 10, and the suction port 131 is closer to the foremost point of the endoscope body 10 than the infusion port 121. In another specific example, the distance between the infusion port 121 and the front end of the endoscope body 10 is less than the distance between the suction port 131 and the front end of the endoscope body 10. That is, the infusion port 121 is located in front of the suction port 131, and the infusion port 121 is closer to the front end of the endoscope body 10 than the suction port 131.

[0147] In modified embodiments of this application, the infusion port 121 and the suction port 131 may be flush along the axial direction set by the endoscope body 10, which is not limited to this application.

[0148] In this embodiment, the inlet 121 and the suction port 131 are two isolated openings, thereby reducing the suction interference caused by the negative pressure within the suction channel 13 on the fluid. In some embodiments of this application, the inlet 121 and the suction port 131 are located on two different surfaces.

[0149] In a specific example of this application, the inlet 121 is formed on the outer peripheral surface 1102 of the tube structure body 11, and the suction port 131 is formed on the front end surface 1101 of the tube structure body 11, as shown below. Figures 5A to 5C As shown. In this way, the infusion port 121 opens to the side and the suction port 131 opens to the front. Fluid is injected into the renal pelvis p from the infusion port 121 formed on the outer peripheral surface 1102 of the tube structure body 11 in the first direction, and after being turned, it needs to bypass the outer peripheral surface 1102 and be sucked into the suction channel 13 from the suction port 131 in the second direction, forming a vortex-like fluid loop, which can reduce the suction interference on the fluid.

[0150] Specifically, in this particular example, the filling port 121 formed on the outer peripheral surface 1102 of the tube structure body 11 mainly occupies the axial dimension of the tube structure body 11, and the suction port 131 formed on the front end surface 1101 of the tube structure body 11 mainly occupies the radial dimension of the tube structure body 11. Thus, without needing to coordinate the spatial proportions of the filling port 121 and the suction port 131 in the radial direction of the tube structure body 11 under the condition of limited radial dimensions, the dimensions of both the suction port 131 and the filling port 121 can be relatively increased, and the design flexibility of the shape and number of the suction port 131 and the filling port 121 is also relatively improved. By rationally arranging the infusion port 121 and the suction port 131, the size of both the suction port 131 and the infusion port 121 can be relatively increased. This makes it easier for the broken stones to pass through, thereby improving the stone removal efficiency, shortening the operation time, and ensuring the fluid output of the infusion port 121 of the infusion channel 12.

[0151] When the outflow volume from the infusion port 121 is large, on the one hand, the range of the fluid ejected from the infusion port 121 is relatively extended, the impact force on the broken stones is relatively increased, the suction interference is relatively reduced, and the stone removal efficiency is relatively improved. On the other hand, the distal and proximal double-acting ureteroscope 100 can achieve a large outflow volume at a relatively low injection pressure, reducing the risk of increased pressure within the kidney.

[0152] It is worth mentioning that, in this embodiment of the application, the front end face 1101 of the tube structure body 11 is designed to extend forward at an angle from the first side of the outer peripheral surface 1102 to the second side opposite to the first side along the axial direction set by the tube end body 10. The front end face 1101 has a first end near the first side of the outer peripheral surface 1102 and a second end near the second side of the outer peripheral surface 1102. The second end is higher than the first end. Compared to the design where the front end face 1101 extends flush with the first side of the outer peripheral surface 1102 to the second side opposite to the first side, the first end of the front end face 1101 is flush with the second end of the front end face 1101. The fluid travels a longer distance, which not only reduces the attraction interference, but also allows for the capture of more broken stones along the fluid's path due to the wider area through which the fluid flows, thus improving the stone removal efficiency.

[0153] It is worth mentioning that, preferably, the diameter of the infusion channel 12 is equal to or slightly larger than the diameter of the suction channel 13 to achieve flow balance. Here, "the diameter of the infusion channel 12 is equal to or slightly larger than the diameter of the suction channel 13" means that the sum of the equivalent diameters of all the infusion channels 12 is equal to or slightly larger than the sum of the equivalent diameters of all the suction channels 13.

[0154] In one specific embodiment of this application, the number of suction ports 131 is 1, and the number of infusion ports 121 is 2, such as... Figures 3A to 3E As shown. Accordingly, the at least one infusion channel 12 includes a first infusion channel and a second infusion channel, the first infusion channel having a first infusion port located at the front end portion 110, and the second infusion channel having a second infusion port located at the front end portion 110, the first infusion port and the second infusion port being disposed opposite to each other.

[0155] In another specific embodiment of this application, the number of suction ports 131 is 1, the number of infusion ports 121 is 2, and the infusion channel 12 is formed around the suction channel 13. That is, the infusion channel 12 is an annular channel formed around the suction channel 13, or the cross-section of the infusion channel 12 is annular. The infusion channel 12 has two infusion ports 121 formed at the front end 120, and the two infusion ports 121 are located on the outer peripheral surface 1102.

[0156] It should be understood that the size, shape and number of the suction port 131 and the infusion port 121 are not limited by this application, and the size, shape and number of the suction port 131 and the infusion port 121 can be adjusted according to the actual application to achieve controllable and orderly fluid circulation.

[0157] It is worth mentioning that the positions of the suction port 131 and the filling port 121 are not limited to those of this application. In other specific examples, the suction port 131 and the filling port 121 can be located in other positions. In another specific example of this application, the suction port 131 and the filling port 121 are respectively located on the outer peripheral surface 1102 and the front end surface.

[0158] In another specific example of this application, both the suction port 131 and the filling port 121 are disposed on the front end face 1101 of the tube structure body 11. Specifically, in this specific example, the filling channel 12 is formed around the suction channel 13, that is, the filling channel 12 is an annular channel formed around the suction channel 13, or the cross-section of the filling channel 12 is annular, and the filling channel 12 has two filling ports 121 formed at the front end 120, and the two filling ports 121 are located on both sides of the suction port 131.

[0159] In this embodiment, the distal and proximal double-click ureteroscope 100 further includes an image acquisition device 300 and a light source 400 mounted on the ureteroscope body 10 to capture images of the kidney and stones located within it. The positions of the image acquisition device 300 and the light source 400 are not limited to those specified in this application. Preferably, the suction port 131 of the suction channel 13 is located within the visible area of ​​the image acquisition device 300 to capture images of the vicinity of the suction port 131, allowing the user to observe the removal of broken stones. The light source 400 can be positioned close to the image acquisition device 300 to provide sufficient light to the image acquisition device 300.

[0160] Accordingly, the operation unit 20 further includes a fourth operation terminal 25 communicatively connected to the image acquisition device 300. Furthermore, the image output device 500 (e.g., a computer communicatively connected to the image acquisition device 300) can be communicatively connected to the image acquisition device 300 via the operation unit 20 to acquire images of the kidney and stones located within the kidney, so that the user can observe the condition of the stones c within the renal pelvis p.

[0161] It is worth mentioning that, in order to ensure the rigidity of the endoscope body 10 while allowing it to bend to reach different target positions, the endoscope body 10 includes a flexible portion 1010 adjacent to the front end portion 110 and a rigid portion 1020 coupled to the flexible portion 1010. The rigid portion 1020 may extend rearward from the flexible portion 1010, or the rigid portion 1020 may cover at least a portion of the flexible portion 1010 to ensure the local rigidity of the endoscope body 10.

[0162] Accordingly, the operating unit 20 further includes a fifth operating end 26 operably connected to the flexible part 1010 and an operating mechanism 28 mounted on the fifth operating end 26. The operating mechanism 28 is operably connected to the flexible part 1010 via the fifth operating end 26 to control the curvature of the flexible part 1010, allowing the endoscope body 10 to reach different target positions. Furthermore, the curvature of the flexible part 1010 can be adjusted according to actual conditions. In a specific example, the operating mechanism 28 includes a control line 281 connected to the flexible part 1010 and an adjuster 282 connected to the control line 281. The adjuster 282 is configured to drive the control line 281 to pull the flexible part 1010, causing the flexible part 1010 to bend. The structure of the operating mechanism 28 and the method of controlling the bending of the flexible part 1010 are not limited to this application; that is, the operating mechanism 28 can be designed with other structures and control the bending of the flexible part 1010 in other ways.

[0163] In one specific example, at least a portion of the front end portion 110 of the endoscope body 10 is the flexible portion 1010, allowing the infusion channel 12 and the suction channel 13 to be flexible, and the suction port 131 and the infusion port 121 to be oriented toward the stone c at the target location. The flexible portion 1010 includes an active bending portion 1011 and a passive bending portion 1012. The active bending portion 1011 can be bent under the control of the operating part 20 and maintains the bent state, while the passive bending portion 1012 bends along with the bending of the active bending portion 1011.

[0164] Exemplary method for removing stones

[0165] like Figure 11 As shown, the method for removing stones using a ureteroscope according to this application is explained, which includes: S110, striking the stone with a laser emitted by a first stone-striking mechanism; S120, guiding the broken stone to the suction port of the suction channel through a fluid circulation; S130, striking the stone blocking the suction port with a laser emitted by a second stone-striking mechanism, so that the stone blocking the suction port can be broken and discharged through the suction port.

[0166] The working process of the aforementioned double-sided ureteroscope 100 is described below using the application of the double-sided ureteroscope 100 to remove stones c in the renal pelvis p as an example.

[0167] In step S110, the stone is struck by a laser emitted from the first stone-striking mechanism 30. Before the laser strikes the stone, preparation work is required. Specifically, the endoscope body 10 is first inserted to the initial predetermined position in the kidney. Specifically, the endoscope body 10 can enter the kidney along the patient's ureter and reach the initial predetermined position. During this process, an image acquisition device 300 disposed on the endoscope body 10 and an image output device 500 communicatively connected to the image acquisition device 300 can acquire and display images of the surrounding environment along the path of the endoscope body 10, and guide the distal and proximal double-sided ureteroscope 100 to the initial predetermined position in conjunction with the guiding mechanism 600. Specifically, the guiding mechanism 600 can enter the perfusion channel 12 through the operating part 20 and guide the distal and proximal double-sided ureteroscope 100 to the initial predetermined position. After the endoscope body 10 reaches the initial predetermined position, the guiding mechanism 600 can be removed.

[0168] Before or after insertion of the endoscope body 10, the first stone-dissolving mechanism 30 and the second stone-dissolving mechanism 40 can be placed in the initial predetermined position of the kidney. The first stone-dissolving mechanism 30 and the second stone-dissolving mechanism 40 are respectively disposed in the first optical fiber channel 14 and the second optical fiber channel 15, and can extend or retract from the front end 110 of the endoscope body 10.

[0169] Next, the flexible part 1010 is bent by the operating mechanism 28 of the operating unit 20, so that the front end 110 of the endoscope body 10 faces the stone c at the target location in the renal pelvis p. After the front end 110 of the endoscope body 10 faces the stone c at the target location, the stone can be struck by the laser emitted from the first stone-throwing mechanism 30, such as... Figure 10A As shown.

[0170] During the bending of the flexible portion 1010 controlled by the operating mechanism 28 of the operating unit 20, the flexible portion 1010 can be bent at a predetermined degree of curvature according to the target position. When the distal-proximal double-bending ureteroscope 100 is used to strike a stone c located in the upper renal pelvis, the flexible portion 1010 is controlled to bend at a first degree of curvature. When the distal-proximal double-bending ureteroscope 100 is used to strike a stone c located in the middle renal pelvis, the flexible portion 1010 is controlled to bend at a second degree of curvature. When the distal-proximal double-bending ureteroscope 100 is used to strike a stone c located in the lower renal pelvis, the flexible portion 1010 is controlled to bend at a third degree of curvature, the third degree of curvature being greater than the second degree of curvature and the first degree of curvature.

[0171] It is worth mentioning that during the process of striking the stone with the laser emitted by the first stone-striking mechanism 30, when the first stone-striking mechanism 30 is movably disposed on the endoscope body 10, the length of the first head 31 extending beyond the front end 110 can be adjusted according to the distance between the stone c and the front end 110 of the endoscope body 10, so as to approach and strike the stone c. When the stone c is far from the front end 110, the first head 31 extends to a first position to strike the stone c; when the stone c is close to the front end 110, the first head 31 retracts to a second position to strike the stone.

[0172] After the stone c is broken, the broken stone can be struck by the first stone-striking mechanism 30 and the second stone-striking mechanism 40. Furthermore, the length of the first head 31 extending beyond the front end 110 can be adjusted according to the distance between the broken stone and the front end 110 to further break the broken stone.

[0173] The stone c can be further struck by the first striking mechanism 30, and the broken stone can be struck by the third striking mechanism 50 and the second striking mechanism 40.

[0174] Accordingly, step S110 includes: extending the first head 31 of the first stone-breaking mechanism 30 to strike the stone; and retracting the first head 31 of the first stone-breaking mechanism 30 to strike the stone.

[0175] When the first head 31 of the first stone-dissolving mechanism 30 is located in the suction channel 13 of the ureteroscope 100, the first head 31 can be retracted to the suction port 131 of the suction channel 13 to dislodge the stone blocking the suction port 131.

[0176] Accordingly, step S110 further includes: retracting the first head 31 of the first stone-dissolving mechanism 30 to strike the stone blocking the suction port 131.

[0177] In step S120, the broken stones are guided to the suction port 131 of the suction channel 13 by fluid circulation. Specifically, during the process of striking the stone c by the first stone-striking mechanism 30, or after the stone c is broken by the first stone-striking mechanism 30, fluid can be ejected from the irrigation port 121 of the distal and proximal double-flash ureteroscope 100 to the target position to impact the broken stones. Specifically, fluid can be injected into the irrigation channel 12 by the injection device 700 connected to the operation unit 20, so that the fluid is injected into the target position to impact the broken stones.

[0178] During the impact and fragmentation of the kidney stones, the fragmented stones and fluid are attracted, causing the fluid to be redirected and carrying the fragmented stones into the suction channel 13 through the suction port 131, forming a fluid loop. In this way, the fragmented stones are guided to the suction port 131 and then into the suction channel 13 via the fluid loop. Specifically, the suction device 800 connected to the operation unit 20 can attract the fragmented stones and fluid, allowing the fluid and fragmented stones to be discharged through the suction channel 13 to maintain pressure within the kidney. During the process of attracting the fragmented stones into the suction channel 13 of the endoscope body 10, the suction force on the fluid and fragmented stones can be adjusted by regulating the air pressure within the suction channel 13.

[0179] In the embodiment of the application, the orientation of the infusion port 121 is a first orientation, and the orientation of the suction port 131 is a second orientation. Fluid can be injected into the renal pelvis p from the infusion port 121 in a first direction pointing to the first orientation along the infusion channel 12, and after being turned, it is sucked into the suction channel 13 of the distal and proximal double-click ureteroscope 100 in a second direction pointing to the second orientation to form a fluid loop, so as to guide the broken stones into the suction channel 13.

[0180] In this embodiment of the application, the "dual-proximal striking" method can achieve the following: while striking the stone c or movable stone embedded in the kidney, the stone blocking the suction port 131 of the suction channel 13 is cleared. The method is relatively simple, can improve the stone removal efficiency, and thus shorten the operation time.

[0181] Accordingly, in step S130, the laser emitted from the second stone-breaking mechanism 40 strikes the stone blocking the suction port 131. It is worth noting that when the broken stone blocks the suction port 131, the broken stone will be stuck in the suction port 131. The distal and proximal double-acting ureteroscope 100 can utilize the locking effect of the suction port 131 on the broken stone to further strike the stone blocking the suction port 131, as shown in Figure 10B. In this way, the stone blocking the suction port 131 can be quickly broken up and discharged through the suction port 131, thereby improving the stone removal efficiency.

[0182] It is also worth mentioning that during the process of the laser emitted by the second stone-dispelling mechanism 40 striking the stones blocking the suction port 131, the first stone-dispelling mechanism 30 can cooperate with the second stone-dispelling mechanism 40. Specifically, when the broken stones block the suction port 131, the second stone-dispelling mechanism 40 can first disperse the stones blocking the suction port 131. When the dispersed stones move into the laser emission path of the first stone-dispelling mechanism 40, the first stone-dispelling mechanism 30 can strike the dispersed stones again. Figure 10C As shown in the diagram. In this way, the dispersed stones are more easily broken up, which can improve the stone fragmentation efficiency and thus improve the stone removal efficiency.

[0183] When the second stone-breaking mechanism 40 is movably disposed on the endoscope body 10, the second stone-breaking mechanism 40 can cooperate with the first stone-breaking mechanism 30 to quickly break up stones or movable stones embedded in the kidney.

[0184] During the process of the second stone-breaking mechanism 40 and the first stone-breaking mechanism 30 jointly striking the stone c embedded in the kidney, the second stone-breaking mechanism 40 can extend from the front end 110. The second stone-breaking mechanism 40 extending from the front end 110 can strike the same position of the stone c at the same time as the first stone-breaking mechanism 30, or strike the adjacent position of the stone c at the same time. In this way, the stone c is easier to break up, which can improve the stone-breaking efficiency and thus improve the stone removal efficiency.

[0185] During the joint impact of the second stone-breaking mechanism 40 and the first stone-breaking mechanism 30 on the movable stone, the first stone-breaking mechanism 30 can impact the movable stone into the laser emission path of the second stone-breaking mechanism 40, thereby quickly breaking the movable stone. Specifically, the laser emitted from the first stone-breaking mechanism 30 can impact the movable stone. When the movable stone, impacted by the laser, moves along the J direction into the laser emission path of the second stone-breaking mechanism 40, the laser emitted from the second stone-breaking mechanism 40 strikes the movable stone in a K direction at an angle to the J direction. This causes the stone moving along the J direction to be instantly subjected to a force in the K direction at an angle to the J direction, thus making the stone easier to break quickly and improving the stone-breaking efficiency. Of course, the second stone-breaking mechanism 40 can also impact the movable stone into the laser emission path of the first stone-breaking mechanism 30 to quickly break the movable stone.

[0186] The first stone-breaking mechanism 30 and the second stone-breaking mechanism 40 can also cooperate as follows: the first stone-breaking mechanism 30 and the second stone-breaking mechanism 40 first jointly strike the stone c in the renal pelvis; then, when the broken stone is stuck in the suction port 131, the second stone-breaking mechanism 40 retracts to the suction port 131 and strikes the stone blocking the suction port 131.

[0187] It is worth mentioning that during the process of striking the stones by the first stone-striking mechanism 30 and the second stone-striking mechanism 40, the scope body 10 can be rotated so that the first stone-striking mechanism 30 and the second stone-striking mechanism 40 can strike the stones from multiple directions, and the fluid ejected from the infusion port 121 can comprehensively impact the broken stones around the scope body 10.

[0188] In summary, the distal-proximal double-strike ureteroscope 100 and the method of removing stones using the ureteroscope 100 based on the embodiments of this application have been clarified. The distal-proximal double-strike ureteroscope 100 adopts a "distal-proximal double-strike" scheme to achieve the following: while striking the stone c or movable stone embedded in the kidney, it clears the stone blocking the suction port of the suction channel, thereby improving the stone removal efficiency.

[0189] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A distal and proximal double-click ureteroscope, characterized in that, The ureteroscope comprises: an operation part; a tube mirror main body having a front end part and a rear end part, comprising: a tube structure main body, at least one perfusion channel extending from the rear end part to the front end part in the tube structure main body, and an aspiration channel extending from the front end part to the rear end part in the tube structure main body, the aspiration channel having an aspiration port at the front end part, the operation part being operatively connected to the tube mirror main body; a first stone-knocking mechanism, comprising: a first head part protruding from the front end part of the tube mirror main body for knocking stones, and a first main body part extending rearward from the first head part; and a second stone-knocking mechanism, comprising: a second head part located at the aspiration port of the aspiration channel for knocking stones blocked at the aspiration port, and a second main body part extending rearward from the second head part, wherein the first head part of the first stone-knocking mechanism is located in front of the second head part of the second stone-knocking mechanism, the first head part has a first orientation, the second head part has a second orientation, the first orientation and the second orientation form a preset angle, the preset angle is greater than 0° and less than 180°, the first head part of the first stone-knocking mechanism is not on a laser emission path of the second stone-knocking mechanism, the tube mirror main body has a front end surface and an outer peripheral surface, the aspiration port is formed on the front end surface, the front end surface extends forwardly and obliquely from a first side of the outer peripheral surface to a second side opposite to the first side along an axial direction of the tube mirror main body, the first head part protrudes from the front end surface, and any point on the front end surface is not on the laser emission paths of the first stone-knocking mechanism and the second stone-knocking mechanism.

2. The dual kick ureteroscope of claim 1, wherein, The first head part is movably arranged at the front end part to switch between a first state and a second state, wherein, when in the first state, the first head part protrudes from the front end part to a first position, and when in the second state, the first head part protrudes from the front end part to a second position, the distance between the first position and the front end part is greater than the distance between the second position and the front end part.

3. The dual kick ureteroscope of claim 2, wherein, The ureteroscope further comprises a first optical fiber channel arranged at the tube mirror main body, the first stone-knocking mechanism is telescopically arranged at the first optical fiber channel, the first optical fiber channel has a first lithotripsy port formed at the front end part, and the first head part is arranged at the first optical fiber channel and protrudes from the first lithotripsy port.

4. The dual kick ureteroscope of claim 1, wherein, The second head part is movably arranged at the aspiration channel to switch between a third state and a fourth state, wherein, when in the third state, the second head part protrudes from the aspiration port for knocking stones, and when in the fourth state, the second head part is retracted into the aspiration port for knocking stones blocked at the aspiration port.

5. The dual kick ureteroscope of claim 4, wherein, The tube lens body further comprises a second optical fiber channel communicated with the suction channel, the second impact mechanism is telescopically arranged in the second optical fiber channel, the second optical fiber channel comprises a main body section and a communication section extended between the main body section and the suction channel, the communication section communicates the suction channel and the main body section, the second head extends into the suction channel through the communication section.

6. The dual kick ureteroscope of claim 5, wherein, An included angle between a central axis of the communication section and a central axis of the suction channel ranges from 0° to 45°.

7. The dual kick ureteroscope of claim 6, wherein, When the second impact mechanism is in the fourth state, the second impact mechanism is located in a middle region of the suction port.

8. The dual kick ureteroscope of claim 7, wherein, When the second impact mechanism is in the fourth state, a front end of the second head is flush with the front end face.

9. The dual-action ureteroscope of claim 1, further comprising a third ballistome mechanism disposed on the scope body, comprising: A third head and a third main body portion extending rearward from the third head, the third head of the third impact mechanism.

10. The dual kick ureteroscope of claim 1, wherein, The irrigation channel has an irrigation port located at the front end portion, the irrigation port of the irrigation channel has a first orientation for allowing fluid to be injected into a renal pelvis in a first direction from the irrigation port along the irrigation channel in the first orientation, the suction port of the suction channel has a second orientation at a preset included angle with the first orientation for allowing the fluid to be suctioned into the suction channel from the suction port in a second direction in the second orientation after being diverted in the renal pelvis to form a fluid loop.

Images