Tip for ureteroscope and oblique ureteroscope

Abstract

A ureteroscope tip and a ureteroscope with oblique vision are disclosed. The ureteroscope tip comprises: a tip portion, wherein the tip portion is configured to be arranged at a front end of a ureteroscope body, and the tip portion has a camera end face and a suction end face extending from the camera end face, wherein the tip portion further comprises a suction hole extending through the tip portion from front to back to form a suction opening at the suction end face, and the suction hole of the tip portion is configured to be communicated with a suction channel of the ureteroscope body; and an image acquisition device, wherein the image acquisition device comprises a camera head mounted on the camera end face of the tip portion, and an optical axis of the camera head extends forwardly and obliquely to be deviated from a central axis of the suction hole, so that the suction opening of the suction hole of the tip portion is within a field of view of the camera head.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a tip for a ureteroscope and a ureteroscope with a tilted view. BACKGROUND

[0002] Urinary system stones are a common disease. In recent years, with the development of minimally invasive treatment technology, the ureteroscope has become an important treatment method for such diseases. The existing ureteroscope equipment for urinary system stone surgery mainly has two types of hard mirror and soft mirror, among which the hard mirror is relatively hard and cannot be bent, so it is only suitable for the diagnosis and treatment of ureteral calculi and other diseases, and the soft mirror gradually becomes an important treatment method for urinary system stones. For example, the traditional soft ureteroscope has some deficiencies in image acquisition, stone crushing and residual stone cleaning, such as being unable to aim the optical fiber when seeing the stone in the renal pelvis, or the image is blocked by the inner wall of the renal pelvis after aiming, or the soft mirror head only has a small channel and can only pass through the optical fiber for stone crushing, but cannot efficiently clean the residual stones out of the body, resulting in low surgical efficiency and other problems.

[0003] In order to solve the above problems, some clinical experts have proposed using the principle of negative pressure suction to timely suck the crushed stones out of the body. For example, as shown in Figure 1 A self-filling and draining ureteroscope 1P is applied in Chinese utility model patent CN212574841U, which has the advantages that the camera 10P, the irrigation port 20P, the optical fiber channel port 30P and the suction channel port 40P are all arranged on the front end face of the ureteroscope, and the suction channel port 40P is located behind the camera 10P, the end working image is collected by the camera 10P to observe the light hitting the stone, and then the water flow is used to flush the stone and suction is used to form a working cycle, so as to improve the stone cleaning efficiency.

[0004] However, in the actual test process, due to the factors such as the position of the camera, the direction of the optical fiber, the shape of the suction channel port and the arrangement of the irrigation channel, there is a blind area in the stone crushing working state, which makes it difficult for the doctor to make corresponding correct operation feedback. For example, as shown in Figure 2 Since the camera 10P is in front of the suction channel port 40P, and the optical axis 100P of the camera 10P is parallel to the central axis 400P of the suction channel port 40P, the suction channel port 40P is outside the field of view of the camera 10P, so whether the crushed stones enter the suction channel port 40P or whether the suction channel port 40P is blocked cannot be observed, which brings a certain safety risk to the operation. SUMMARY

[0005] An advantage of the present application is to provide a ureteroscope tip and a ureteroscope with a tilted view, which can observe the suction opening of the suction hole, and help to make accurate judgments on the operation state in time.

[0006] Another advantage of the present application is to provide a ureteroscope tip and a ureteroscope with a tilted view, wherein in an embodiment of the present application, the ureteroscope tip can make the suction opening of the suction hole within the field of view of the image acquisition device, so as to observe in real time whether phenomena such as whether the crushed stones enter the suction opening of the suction hole or whether the suction opening of the suction hole is blocked.

[0007] Another advantage of the present application is to provide a ureteroscope tip and a ureteroscope with a tilted view, wherein in an embodiment of the present application, the ureteroscope tip can make the suction opening of the suction hole within the field of view of the image acquisition device, so as to observe in real time whether phenomena such as whether the crushed stones enter the suction opening of the suction hole or whether the suction opening of the suction hole is blocked.

[0008] Another advantage of the present application is to provide a ureteroscope tip and a ureteroscope with a tilted view, wherein in an embodiment of the present application, the ureteroscope tip can make the suction opening of the suction hole within the field of view of the image acquisition device, so as to observe in real time whether phenomena such as whether the crushed stones enter the suction opening of the suction hole or whether the suction opening of the suction hole is blocked.

[0009] Another advantage of the present application is to provide a ureteroscope tip and a ureteroscope with a tilted view, wherein in an embodiment of the present application, the ureteroscope tip can make the suction opening of the suction hole within the field of view of the image acquisition device, so as to observe in real time whether phenomena such as whether the crushed stones enter the suction opening of the suction hole or whether the suction opening of the suction hole is blocked.

[0010] Another advantage of the present application is to provide a ureteroscope tip and a ureteroscope with a tilted view, wherein in an embodiment of the present application, the ureteroscope tip can make the suction opening of the suction hole within the field of view of the image acquisition device, so as to observe in real time whether phenomena such as whether the crushed stones enter the suction opening of the suction hole or whether the suction opening of the suction hole is blocked.

[0011] Another advantage of the present application is to provide a ureteroscope tip and a ureteroscope with a tilted view, wherein in an embodiment of the present application, the ureteroscope tip can make the suction opening of the suction hole within the field of view of the image acquisition device, so as to observe in real time whether phenomena such as whether the crushed stones enter the suction opening of the suction hole or whether the suction opening of the suction hole is blocked.

[0012] Another advantage of the present application is to provide a ureteroscope tip and a ureteroscope with a tilted view, and to achieve the above-mentioned advantage, no complicated structure or design is required in the present application. Therefore, the present application successfully and effectively provides a solution, not only a simple ureteroscope tip and a ureteroscope with a tilted view, but also increases the practicability and reliability of the ureteroscope tip and the ureteroscope with a tilted view.

[0013] To achieve at least one of the above-mentioned advantages or other advantages and objectives, the present application provides a ureteroscope tip adapted to be configured to a ureteroscope body, wherein the ureteroscope tip comprises:

[0014] a tip portion configured to be disposed at a front end of the ureteroscope body, the tip portion having an imaging end face and an aspiration end face extending from the imaging end face, the tip portion further comprising an aspiration hole extending through the tip portion to form an aspiration opening at the aspiration end face, the aspiration hole of the tip portion being configured to communicate with an aspiration channel of the ureteroscope body; and

[0015] an image capturing device comprising a camera mounted to the imaging end face of the tip portion, an optical axis of the camera extending forwardly and obliquely to be offset from a central axis of the aspiration hole, such that the aspiration opening of the aspiration hole of the tip portion is within a field of view of the camera.

[0016] According to an embodiment of the present application, a tangential image plane of the camera passes through the aspiration opening of the aspiration hole.

[0017] According to an embodiment of the present application, the optical axis of the camera intersects the central axis of the aspiration hole.

[0018] According to an embodiment of the present application, the imaging end face of the tip portion extends obliquely inwardly relative to the central axis of the aspiration hole, and the optical axis of the camera is perpendicular to the imaging end face.

[0019] According to an embodiment of the present application, the aspiration end face of the tip portion extends obliquely forwardly from the imaging end face.

[0020] According to an embodiment of the present application, the aspiration end face of the tip portion comprises a concave segment end face extending arcuately inwardly from the imaging end face, and a convex segment end face extending arcuately outwardly from the concave segment end face.

[0021] According to an embodiment of the present application, the concave segment end face of the aspiration end face is tangent to the imaging end face, and the convex segment end face of the aspiration end face is tangent to the concave segment end face of the aspiration end face.

[0022] According to an embodiment of the present application, the image acquisition device further comprises at least one light source, and the light source and the camera are adjacently mounted on the imaging end surface of the tip portion.

[0023] According to an embodiment of the present application, the tip portion further comprises a working hole, wherein the working hole is configured to communicate with a working channel of the scope body, so that a working component mounted on the working channel extends out of the tip portion through the working hole to be within the field of view of the camera.

[0024] According to an embodiment of the present application, a working opening of the working hole of the tip portion is directed towards the suction opening of the suction hole of the tip portion, and the working hole of the tip portion extends forwardly and obliquely for the working component passing through the working hole to extend forwardly and obliquely from the suction opening.

[0025] According to another aspect of the present application, the present application further provides a oblique-viewing ureteroscope, comprising:

[0026] a scope body, wherein the scope body has a suction channel; and

[0027] a ureteroscope tip configured on a scope body of a ureteroscope, and the ureteroscope tip comprises:

[0028] a tip portion arranged at a front end of the scope body, and the tip portion has an imaging end surface and a suction end surface extending from the imaging end surface, wherein the tip portion further comprises a suction hole extending through the tip portion from front to back to form a suction opening at the suction end surface, and the suction hole of the tip portion communicates with the suction channel of the scope body; and

[0029] an image acquisition device comprising a camera mounted on the imaging end surface of the tip portion, and an optical axis of the camera extends forwardly and obliquely to be deviated from a central axis of the suction hole, so that the suction opening of the suction hole of the tip portion is within a field of view of the camera.

[0030] According to an embodiment of the present application, the scope body comprises a scope tube defining the suction channel and at least one working component, wherein the working component is mounted on the scope tube, and the working component mounted on the scope tube extends forwardly out of the tip portion to perform corresponding operation.

[0031] According to an embodiment of the present application, the working component is an optical fiber for emitting laser to perform lithotripsy.

[0032] According to an embodiment of the present application, the mirror body further has a working channel for movably mounting the working member, and the tip portion further comprises a working hole, wherein the working hole is in communication with the working channel of the mirror body, so that the working member extends out of the tip portion through the working hole.

[0033] Further objects and advantages of the present application will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings.

[0034] These and other objects, features and advantages of the present application will become apparent from the following detailed description of the application, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 A partial structural schematic diagram of a prior art self-irrigating ureteroscope is shown.

[0036] Figure 2 A schematic diagram of the application state of the above self-irrigating ureteroscope is shown.

[0037] Figure 3 A schematic diagram of the application state of the above self-irrigating ureteroscope is shown.

[0038] Figure 4 A schematic diagram of the tip of the ureteroscope according to the above embodiment of the present application is shown.

[0039] Figure 5 A schematic diagram of the tip of the ureteroscope according to the above embodiment of the present application is shown.

[0040] Figure 6 A schematic diagram of the tip of the ureteroscope according to the above embodiment of the present application is shown.

[0041] Figure 7 A schematic diagram of the tip of the ureteroscope according to the above embodiment of the present application is shown.

[0042] Figure 8 A schematic diagram of the tip of the ureteroscope according to the above embodiment of the present application is shown.

[0043] Figure 9 A schematic diagram of the tip of the ureteroscope according to the above embodiment of the present application is shown.

[0044] Figure 10 A schematic diagram of the tip of the ureteroscope according to the above embodiment of the present application is shown.

[0045] Figure 11Another application state of the oblique ureteroscope according to the above embodiment of the present application is shown.

[0046] Figure 12 and Figure 13 A first variant of the oblique ureteroscope according to the above embodiment of the present application is shown.

[0047] Figure 14 and Figure 15 A second variant of the oblique ureteroscope according to the above embodiment of the present application is shown.

[0048] Figure 16 and Figure 17 A third variant of the oblique ureteroscope according to the above embodiment of the present application is shown. DETAILED DESCRIPTION

[0049] The following description is presented to enable any person skilled in the art to practice the present application as claimed. The preferred embodiments disclosed herein are only examples of the present application and alternative embodiments can be devised by persons skilled in the art without departing from the spirit and scope of the present application. The present application is defined by the appended claims.

[0050] Those skilled in the art will understand that, in the disclosure of the present application, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.

[0051] In the present application, the term "one" in the claims and the specification should be understood as "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple. Unless it is explicitly shown in the disclosure of the present application that the number of the element is only one, the term "one" cannot be understood as unique or single, and the term "one" cannot be understood as a limitation on the number.

[0052] In the description of the present application, it should be understood that "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise specified and limited, "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through a medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0054] Summary of the application

[0055] As described in the background, in the actual test process, the existing self-irrigation type ureteroscope has a blind area in the lithotripsy state due to factors such as the position of the camera, the direction of the optical fiber, the shape of the suction channel port, and the arrangement of the irrigation channel, which makes it difficult for the doctor to make corresponding correct operation feedback. For example, since the camera is in front of the suction channel port, the suction channel port is outside the field of view of the camera, so whether the crushed stones enter the suction channel port or the suction channel port is blocked cannot be observed, which brings a certain safety risk to the operation.

[0056] Specifically, the technical concept of the present application is to creatively design the tip of the ureteroscope by fully considering the characteristics of the lithotripsy and the actual application scene of the ureteroscope, so as to realize the demand of minimally invasive treatment operation, and at the same time, observe the working state of the suction port in real time, such as whether the stones enter the suction port or the suction port is blocked, etc., which helps the doctor to make accurate judgment on the operation state in time.

[0057] Based on this, the application provides a strabismus type ureteroscope, comprising a mirror body and a ureteroscope tip, wherein the mirror body has an aspiration channel for discharging water or gravel, and the ureteroscope tip comprises a tip part and an image acquisition device, wherein the tip part is arranged at the front end of the mirror body, and the tip part has a camera end face and an aspiration end face located in front of the camera end face, wherein the tip part further comprises an aspiration hole penetrating front and back to form an aspiration opening at the aspiration end face, and the aspiration hole of the tip part is communicated with the aspiration channel of the mirror body; wherein the image acquisition device is installed on the camera end face of the tip part, so that the aspiration opening of the aspiration hole of the tip part is within the field of view range of the camera.

[0058] Based on this, the application provides a ureteroscope tip suitable for being arranged on the mirror body of a ureteroscope, wherein the ureteroscope tip comprises: a tip part, wherein the tip part is arranged at the front end of the mirror body, and the tip part has a camera end face and an aspiration end face located in front of the camera end face, wherein the tip part further comprises an aspiration hole penetrating front and back to form an aspiration opening at the aspiration end face, and the aspiration hole of the tip part is communicated with the aspiration channel of the mirror body; and an image acquisition device, wherein the image acquisition device is installed on the camera end face of the tip part, so that the aspiration opening of the aspiration hole of the tip part is within the field of view range of the camera.

[0059] Exemplary embodiments

[0060] With reference to the accompanying drawings of the present application Figures 3 to 10 , an embodiment of the present application provides a strabismus type ureteroscope 1 which can be applied to treat diseases such as urinary system stones, and those skilled in the art should understand that, for the convenience of description, the direction of entering the body in the strabismus type ureteroscope 1 is defined as front, and the direction located outside the body is defined as back.

[0061] Specifically, as Figures 3 to 6As shown, the oblique ureteroscope 1 can include a scope body 10 and a ureteroscope tip 20. The scope body 10 has an aspiration channel 101 for discharging water or stones, and the ureteroscope tip 20 is adapted to be configured to the scope body 10. The ureteroscope tip 20 can include a tip portion 21 and an image acquisition device 22, wherein the tip portion 21 is arranged at the front end of the scope body 10, and the tip portion 21 has a camera end face 2101 and an aspiration end face 2102 extending from the camera end face 2101, wherein the tip portion 21 further includes an aspiration hole 211 extending through front and back, to form an aspiration opening 2110 at the aspiration end face 2102, and the aspiration hole 211 of the tip portion 21 is communicated with the aspiration channel 101 of the scope body 10; wherein the image acquisition device 22 includes a camera 221 mounted on the camera end face 2101 of the tip portion 21, and the optical axis 2211 of the camera 221 extends forwardly and obliquely to deviate from the central axis 2111 of the aspiration hole 211, so that the aspiration opening 2110 of the aspiration hole 211 of the tip portion 21 is within the field of view range of the camera 221. It can be understood that the camera end face 2101 and the aspiration end face 2102 jointly form the front end face of the tip portion 21, and the aspiration hole 211 extends through from the rear end face of the tip portion 21 to the front end face of the tip portion 21. In addition, the ureteroscope tip 20 and the scope body 10 can be separate or integral, which will not be described hereinafter.

[0062] It is worth noting that, since the optical axis 2211 of the camera 221 in the ureteroscope tip 20 extends forwardly and obliquely to deviate from the central axis 2111 of the aspiration hole 211, i.e. the optical axis 2211 of the camera 221 and the central axis 2111 of the aspiration hole 211 are not parallel to each other, therefore, as shown in Figure 6 and Figure 9 the ureteroscope tip 20 of the present application can ensure that the aspiration opening 2110 of the aspiration hole 211 is partially or entirely within the field of view range of the camera 221 without increasing the field of view angle of the camera 221, thereby observing the working state of the aspiration opening 2110 in real time, such as whether the stones enter the aspiration opening 2110 or the aspiration opening 2110 is blocked, etc., which helps doctors make accurate judgments on the operation state in time.

[0063] In addition, since the ureteroscope tip 20 will be inserted into the human body when using the oblique ureteroscope 1 for diagnosis and treatment, i.e. the ureteroscope tip 20 will be in a lightless environment, therefore, as shown in Figure 4 and Figure 5As shown, the image acquisition device 22, in order to acquire images, usually needs to further include at least one light source 222, wherein the light source 222 is used to emit light to irradiate the object to be photographed, such as the renal pelvis lumen or the suction opening 2110, and the camera 221 is used to receive the light reflected back by the object to be photographed, so as to photograph the image of the object to be photographed, so that the photographed image data is transmitted to the outside of the body to be displayed in the display, facilitating the observation of the inside of the body by the doctor and the like.

[0064] Exemplarily, as Figure 4 and Figure 5 shown, the camera 221 and the light source 222 are both mounted on the camera end face 2101 of the tip portion 21, and the light source 222 is located near the camera 221, that is, the camera 221 and the light source 222 are adjacently mounted on the camera end face 2101 of the tip portion 21, which helps to ensure that the light emitted by the light source 222 can be better received by the camera 221 to obtain image information after being reflected by the object to be photographed.

[0065] In detail, the light source 222 can be but is not limited to being implemented as an LED or a cold light source, and the number of the light source 222 can be one or more, and in addition, the light source 222 can be located on one side or both sides of the camera 221, which can be configured according to the needs and space, and the present application will not be repeated here. It can be understood that the camera 221 can be but is not limited to being implemented as a camera module composed of a lens group and a CMOS image sensor, and can also be implemented as other types of camera modules as long as it can acquire image information.

[0066] Optionally, the field of view angle of the camera 221 can be but is not limited to being implemented as 120°. According to the above arrangement of the present application, the oblique-viewing ureteroscope 1 of the present application only needs to be arranged obliquely without increasing the field of view angle of the camera 221, so that the optical axis 2211 of the camera 221 deviates from the suction opening 2110 of the suction hole 211, which can visualize the ureteroscope tip 20, and helps to observe whether the suction opening 2110 of the tip portion 21 is blocked or whether the stones enter the suction opening 2110. Of course, in other examples of the present application, the field of view angle of the camera 221 can also be implemented as other angles.

[0067] Preferably, as Figure 9As shown, the meridian image plane 2212 of the camera 221 passes through the suction opening 2110 of the tip portion 21, so that in the image captured by the camera 221 and displayed on the display, the visual central axis 2210 of the camera 221 will pass through the image of the suction opening 2110, facilitating observation and determination of the state and position of the suction opening 2110.

[0068] More preferably, the central axis 2111 of the suction hole 211 of the tip portion 21 is located within the meridian image plane 2212 of the camera 221, so that the optical axis 2211 of the camera 221 intersects the central axis 2111 of the suction hole 211, so that in the image captured by the camera 221 and displayed on the display, the visual central axis 2210 of the camera 221 will coincide with the center line of the image of the suction hole 211, facilitating observation and determination of the state and position of the suction opening 2110.

[0069] Most preferably, the camera end surface 2101 of the tip portion 21 extends inwardly obliquely relative to the central axis 2111 of the suction hole 211. At this time, the camera 221 only needs to be installed vertically on the camera end surface 2101 to ensure that the optical axis 2211 of the camera 221 is arranged obliquely relative to the central axis 2111 of the suction hole 211, facilitating the intersection of the optical axis 2211 of the camera 221 with the central axis 2111 of the suction hole 211. It can be understood that when the optical axis 2211 of the camera 221 is perpendicular to the camera end surface 2101, the camera end surface 2101 will not block the field of view of the camera 221, and at the same time can simplify the installation difficulty of the camera 221.

[0070] According to the above embodiments of the present application, as Figure 4 and Figure 6 As shown, the suction end surface 2102 of the tip portion 21 extends obliquely forward from the camera end surface 2101 of the tip portion 21, so that the camera 221 installed on the camera end surface 2101 is at the rear, and the suction opening 2110 formed on the suction end surface 2102 is at the front, facilitating the partial or complete placement of the suction opening 2110 within the field of view of the camera 221. It can be understood that in the above examples of the present application, the suction end surface 2102 of the tip portion 21 is implemented as a beveled surface. Of course, in other examples of the present application, the suction end surface 2102 of the tip portion 21 can also be implemented as a flat surface, at this time the camera end surface 2101 of the tip portion 21 can be located at the notch of the suction end surface 2102 or within the suction hole 211, so that the image acquisition device 22 can still acquire the image of the suction opening 2110.

[0071] Preferably, the suction end face 2102 of the tip portion 21 comprises a concave section end face 21021 extending arcuately inwardly from the camera end face 2101, so as to avoid the concave section end face 21021 from blocking the field of view of the camera end face 2101, and to help ensure that the suction opening 2110 located at the suction end face 2102 falls within the field of view of the image capturing device 22. Meanwhile, the size of the suction opening 2110 of the tip portion 21 can be rapidly enlarged to the maximum inner diameter of the suction channel 101 over the concave section end face 21021, so as to help avoid the suction opening 2110 from being blocked by larger stones.

[0072] More preferably, the suction end face 2102 of the tip portion 21 further comprises a convex section end face 21022 extending arcuately outwardly from the concave section end face 21021, so as to make the tip portion 21 have a blunt body structure, and to help prevent the tip portion 21 from forming a sharp head, and to help prevent the tip portion 21 from damaging human organs.

[0073] Most preferably, the convex section end face 21022 of the suction end face 2102 is tangent to the concave section end face 21021 of the suction end face 2102, and the concave section end face 21021 of the suction end face 2102 is tangent to the camera end face 2101, so that the concave section end face 21021 of the suction end face 2102 smoothly extends from the camera end face 2101 to the convex section end face 21022, so as to ensure that the tip portion 21 has a smooth end face, and to further help prevent the tip portion 21 from damaging human organs.

[0074] It is worth noting that the camera end face 2101 and the suction end face 2102 of the tip portion 21 of the oblique-viewing ureteroscope 1 of the present application are oppositely arranged, i.e. the relative positions of the camera end face 2101 and the suction end face 2102 can be not only front and back, but also up and down, for example, in an example of the present application, as shown in Figure 9 and Figure 10 the camera end face 2101 can be located above the suction end face 2102, i.e. the suction end face 2102 extends obliquely forward and downward from the camera end face 2101, so that the image capturing device 22 is located above, and the suction opening 2110 is located below, and the image of the suction opening 2110 is located at the lower part of the display screen. Of course, in other examples of the present application, as shown in Figure 11As shown, the imaging end face 2101 can also be located below the suction end face 2102, i.e. the suction end face 2102 extends obliquely forward and upward from the imaging end face 2101, so that the image acquisition device 22 is placed below and the suction opening 2110 is placed above, at this time the image of the suction opening 2110 is in the upper part of the display screen. It can be understood that the up, down, left and right mentioned in the present application are defined according to the image acquisition device 22 in the normal position, i.e. the up, down, left and right mentioned in the present application correspond to the above, below, left and right of the image acquisition device 22 in the normal position respectively.

[0075] In addition, since in the lithotripsy operation using the strabismus ureteroscope 1 of the present application, in addition to observing the position and state of the calculus in the body through the strabismus ureteroscope 1, it is usually necessary to first perform calculus crushing and other operations through the strabismus ureteroscope 1, and then perform calculus removal through the suction channel 101 in the strabismus ureteroscope 1, therefore according to the above embodiment of the present application, as shown in Figures 3 to 6 As shown, the mirror body 10 of the strabismus ureteroscope 1 can include a mirror tube 11 defining the suction channel 101 and at least one working component 12, the working component 12 can be installed on the mirror tube 11, and the working component 12 installed on the mirror tube 11 can be extended forward from the tip 21 to perform corresponding operations.

[0076] For example, as shown in Figure 6 and Figure 8 The working component 12 can be but not limited to an optical fiber 121, so as to emit laser through the optical fiber 121 for calculus crushing operation. Of course, in other examples of the present application, the working component 12 can also be but not limited to a guide wire, wherein the guide wire can guide the mirror body 10 to enter the target position. It can be understood by those skilled in the art that the type of the working component 12 can be different according to the application scene of the strabismus ureteroscope 1, and the operator can choose according to the needs.

[0077] Specifically, as shown in Figure 6 and Figure 8As shown, the scope body 10 further has a working channel 102 for mounting the working member 12, and the ureteroscope tip 20 further includes a working hole 212 in communication with the working channel 102, wherein the working member 12 mounted in the working channel 102 can pass through the working hole 212 to extend out of the tip portion 21 to be within the field of view of the image acquisition device 22. It can be understood that when the working member 12 is implemented as a guide wire to guide the insertion of the scope body 10 into the human body organ, the guide wire can also pass through the suction hole 211 first, and then pass through the suction channel 101 to guide the scope body 10 to enter the target position, and then the guide wire can be withdrawn to keep the suction hole 211 and the suction channel 101 unobstructed.

[0078] More specifically, as shown in Figure 6 and Figure 9 The working opening 2120 of the working hole 212 of the tip portion 21 is towards the suction opening 2110 of the suction hole 211 of the tip portion 21, so that the optical fiber 121 passing through the working hole 212 can extend out of the suction opening 2110 of the tip portion 21, which helps to ensure that the extended part of the optical fiber 121 can be within the field of view of the image acquisition device 22, facilitating the observation of the position and state of the extended part of the optical fiber 121.

[0079] In particular, the optical fiber 121 can be movably mounted in the working channel 102, so that by pulling the optical fiber 121, the optical fiber 121 can extend out of or retract into the suction opening 2110 of the suction hole 211. In this way, when the optical fiber 121 is operated to extend out of the suction opening 2110 of the suction hole 211, the laser light emitted via the optical fiber 121 can hit the stones in the human body organ to perform the lithotripsy operation; and when the optical fiber 121 is operated to retract into the suction opening 2110 of the suction hole 211, the laser light emitted via the optical fiber 121 is released in the suction hole 211, at which time if there is a lithotripsy blockage in the suction hole 211, the released holmium laser light will hit the blocked lithotripsy to achieve the effect of unblocking the suction hole 211.

[0080] Preferably, as shown in Figure 6As shown, the working hole 212 of the tip portion 21 extends obliquely forward, so that the optical fiber 121 passing through the working hole 212 can obliquely extend forward from the suction opening 2110 of the tip portion 21. It can be understood that, since the optical fiber 121 can obliquely extend to the suction opening 2110 of the suction hole 211, when the suction opening 2110 of the suction hole 211 is blocked by stones, the laser light emitted through the optical fiber 121 can better hit the stones blocking the suction opening 2110, dredge the suction opening 2110, and help improve the self-dredging efficiency.

[0081] More preferably, the working hole 212 of the tip portion 21 extends obliquely towards the central region of the suction opening 2110 of the tip portion 21, so that the optical fiber 121 passing through the working hole 212 can extend from the central region of the suction opening 2110.

[0082] Most preferably, as shown in Figure 6 and Figure 9 , the central axis of the working hole 212 of the tip portion 21 is located in the tangential image plane 2211 of the camera 221, for making the optical fiber 121 extending from the suction opening 2110 extend in the tangential image plane 2211 of the camera 221, so that the image of the optical fiber 121 extends substantially along the visual central axis 2210 of the camera 221, that is, the center line of the image of the optical fiber 121 substantially coincides with the visual central axis 2210 of the camera 221, so that it will not be blocked by tissues at the turning of the intrarenal cavity, not only the stones can be observed, but also the hitting position of the optical fiber 121 can be seen.

[0083] Exemplarily, in the above-mentioned embodiments of the present application, as shown in Figure 4 and Figure 6 , the working hole 212 of the tip portion 21 can extend obliquely from top to bottom, so that the optical fiber 121 passing through the working hole 212 obliquely extends downward from the upper side of the suction hole 211 to the suction opening 2110; or, in the first variant embodiment of the present application, as shown in Figure 12 and Figure 13 , the working hole 212 of the tip portion 21 can also extend obliquely from bottom to top, so that the optical fiber 121 passing through the working hole 212 obliquely extends upward from the lower side of the suction hole 211 to the suction opening 2110; or, in the second variant embodiment of the present application, as shown in Figure 14 and Figure 15As shown, the working hole 212 of the tip portion 21 can also extend obliquely from left to right, such that the optical fiber 121 passing through the working hole 212 extends obliquely from the left side of the suction hole 211 to the right side of the suction opening 2110. Figure 16 and Figure 17 As shown, the working hole 212 of the tip portion 21 can also extend obliquely from right to left, such that the optical fiber 121 passing through the working hole 212 extends obliquely from the right side of the suction hole 211 to the left side of the suction opening 2110.

[0084] It is worth noting that, as shown in Figure 6 , Figure 13 , Figure 15 and Figure 17 , the working hole 212 of the tip portion 21 extends obliquely from the rear end face of the tip portion 21 to the inner wall face of the suction hole 211, so as to form the working opening 2120 on the inner wall face of the suction hole 211, that is, the working hole 212 is implemented as an oblique hole relative to the suction hole 211, so that the optical fiber 121 passing through the working hole 212 can extend from the inner wall of the suction hole 211, so as to avoid the optical fiber 121 from blocking the stones or fluid from being discharged through the suction hole 211 into the suction passage 101.

[0085] In addition, according to the above-mentioned embodiments of the present application, as shown in Figure 6 and Figure 8 , the suction passage 101 and the working passage 102 in the mirror body 10 can be independent of each other, that is, the suction passage 101 and the working passage 102 extend between the front end and the rear end of the mirror body 10, respectively. It can be understood that, since the suction passage 101 and the working passage 102 are independent of each other, the working component 12 (such as the optical fiber 121) installed in the working passage 102 will not enter the suction passage 101, so as to prevent the working component 12 from interfering with the movement of the fluid or stones in the suction passage 101, and to avoid the suction passage 101 from being blocked.

[0086] It is worth noting that, in other examples of the present application, as shown in Figure 13 , Figure 15 and Figure 17As shown, the suction passage 101 and the working passage 102 in the mirror body 10 can also be communicated, that is, the suction passage 101 and the working passage 102 can be implemented as one passage, but since the working hole 212 extends obliquely from the side wall of the suction hole 211 of the tip portion 21, the optical fiber 121 passing through the working hole 212 will extend along the inner wall of the suction passage 101, that is, the optical fiber 121 will extend along the inner wall of the suction passage 101 first, and then extend obliquely out of the suction opening 2110 of the suction hole 211 through the working hole 212, at this time, the optical fiber 121 can still avoid interfering with the movement of fluid or gravel in the suction passage 101 to a certain extent, and avoid the suction passage 101 from being blocked. It can be understood that when the suction passage 101 and the working passage 102 of the mirror body 10 are one passage, the structure of the mirror body 10 will be simplified to the greatest extent, which helps to reduce the manufacturing difficulty and cost of the mirror body 10; at the same time, once the gravel in the suction passage 101 of the mirror body 10 is blocked, the optical fiber 121 can be pulled so that the end of the optical fiber 121 is at the gravel blockage in the suction passage 101, so that the laser emitted by the optical fiber 121 hits the blocked gravel to dredge the suction passage 101.

[0087] According to the above embodiments of the present application, as Figure 4 and Figure 7 As shown, the mirror body 10 of the oblique ureteroscope 1 can further include a perfusion passage 103 for transmitting perfusion liquid (such as water, etc.), and the tip portion 21 of the ureteroscope tip 20 further includes a perfusion hole 213 in communication with the perfusion passage 103, for discharging the perfusion liquid transmitted through the perfusion passage 103 from the tip portion 21 to be perfused into the human body. In this way, when the oblique ureteroscope 1 is operated, after the oblique ureteroscope 1 is inserted into the kidney, the perfusion liquid such as water flows through the perfusion passage 103 to the perfusion hole 213 of the tip portion 21, and then enters the kidney through the perfusion hole 213 to achieve the perfusion operation; the working component 12 such as the optical fiber 121 extends from the working passage 102 to the working hole 212 to extend out of the suction opening 2110 of the suction hole 211 to perform the gravel operation; at the same time, the excess perfusion liquid and gravel can flow from the suction hole 211 to the suction passage 101 to be discharged out of the body.

[0088] Preferably, as Figure 7 and Figure 10As shown, the perfusion hole 213 of the tip portion 21 extends from the rear end surface of the tip portion 21 to the outer peripheral side surface 2103 of the tip portion 21 to form one or more perfusion openings 2130 on the outer peripheral side surface 2103 of the tip portion 21, so that the perfusion liquid flows outward from the outer peripheral side surface 2103 of the tip portion 21 via the perfusion openings 2130 of the perfusion hole 213 to form a controllable orderly fluid circulation in front of the tip portion 21, which helps to drive the gravel to the suction opening 2110 for efficient suction. It can be understood that according to the law of conservation of momentum in fluid mechanics and the principle of negative pressure suction, the kinetic energy possessed by the perfusion liquid during high-speed flow is used to displace the heavy gravelized stones (gravel) deposited at the bottom of the renal pelvis, which changes direction when encountering the obstruction of the renal pelvis cavity surface, and then moves upward along the inner wall of the renal pelvis. When reaching the front of the suction opening 2110, the pressure near the suction opening 2110 is lower, and the perfusion liquid is forced to flow to the suction opening 2110, thereby driving the gravel into the suction opening 2110 until it is removed outside the body. The continuous perfusion and suction of the liquid in this process can make the perfusion liquid form a nearly semicircular continuous circulation motion track (vortex) between the perfusion opening 2130 and the suction opening 2110. By adjusting the flow rate and suction force, the diameter of the semicircle or the motion track can be controlled to achieve targeted and controllable suction of gravel, greatly improving the efficiency of stone removal.

[0089] In addition, since the area of the outer peripheral side surface 2103 of the tip portion 21 is large, the number and size of the perfusion openings 2130 of the perfusion hole 213 are not limited by the small area of the end surface of the tip portion 21, so that the effective area of the perfusion openings 2130 of the perfusion hole 213 is greatly increased, which helps to form a larger perfusion flow under a relatively low perfusion pressure, and to form a larger suction flow in the suction hole 211 under the same negative pressure, thereby achieving the best perfusion suction ratio and enhancing the efficiency of stone removal.

[0090] More preferably, as Figure 7 and Figure 8As shown, the perfusion channel 103 of the mirror body 10 has a special-shaped structure, and the perfusion channel 103 is wrapped around the suction channel 101, so as to increase the effective diameter of the perfusion channel 103 without increasing the outer diameter of the mirror tube 11 of the mirror body 10, which helps to increase the perfusion flow. Exemplarily, the perfusion channel 103 of the mirror body 10 can have a ring-shaped cross-sectional structure, so that the perfusion channel 103 is wrapped around the suction channel 101. It can be understood that the ring in the ring-shaped cross-sectional structure can refer to a complete ring, i.e., the suction channel 101 is completely surrounded by the perfusion channel 103; of course, the ring in the ring-shaped cross-sectional structure can also refer to a notched ring, i.e., the suction channel 101 is partially surrounded by the perfusion channel 103.

[0091] Optionally, as shown in Figure 8 As shown, the perfusion channel 103 and the working channel 102 of the mirror body 10 jointly surround the suction channel 101, so as to maximize the inner diameter of the suction channel 101 without increasing the outer diameter of the mirror tube 11 of the mirror body 10, which reduces the risk of the suction channel 101 being blocked by stones. In other words, the suction channel 101 of the mirror body 10 can have a circular cross-section or an elliptical cross-section, and the perfusion channel 103 of the mirror body 10 can have a notched ring-shaped cross-section to be partially wrapped around the suction channel 101 and form a notch around the suction channel 101 to arrange the working channel 102, so that the perfusion channel 103 and the working channel 102 jointly surround the suction channel 101.

[0092] It is worth noting that, in the above examples of the present application, as shown in Figure 7 and Figure 8 As shown, the working channel 102 and the perfusion channel 103 of the mirror body 10 can be independent of each other; of course, in other examples of the present application, the working channel 102 and the perfusion channel 103 of the mirror body 10 can also be in communication with each other, i.e., the working channel 102 and the perfusion channel 103 of the mirror body 10 are in communication with each other to form a complete annular channel around the suction channel 101, which helps to simplify the structure of the mirror body 10 and reduce the manufacturing cost of the oblique-viewing ureteroscope 1.

[0093] According to the above examples of the present application, as shown in Figure 3As shown, the mirror body 10 of the anterograde type ureteroscope 1 can further comprise an operation part 12 disposed at the rear end of the mirror tube 11, and the mirror tube 11 can comprise an insertion part 111 extending forward from the operation part 12 and a bendable part 112 extending forward from the insertion part 111, wherein the ureteroscope tip 20 is disposed at the bendable part 112 of the mirror tube 11, and the bendable part 112 of the mirror tube 11 can be operated by the operation part 12 to bend or straighten, so that the ureteroscope tip 20 approaches the target position, such as the stone position in the renal pelvis, etc.

[0094] In addition, as Figure 3 As shown, the operation part 12 of the mirror body 10 can comprise a suction interface 1201 in communication with the suction channel 101, a working interface 1202 in communication with the working channel 102, and a perfusion interface 1203 in communication with the perfusion channel 103, wherein the suction interface 1201 of the operation part 12 is adapted to connect a suction device to move water and debris from the suction channel 101 by the suction device to discharge; wherein the working interface 1202 is used to insert the working part 12, so that the working part 12 is inserted into the working channel 102 via the working interface 1202; wherein the perfusion interface 1203 is adapted to connect a perfusion device to inject perfusion fluid into the perfusion channel 103 by the perfusion device.

[0095] In particular, as Figure 3 As shown, the operation part 12 of the mirror body 10 can further comprise an information interface 1204 communicatively connected with the image acquisition device 22, wherein the information interface 1204 is adapted to connect a terminal device such as a display screen, etc., to communicatively connect the image acquisition device 22 and the terminal device, i.e. the information acquired via the image acquisition device 22 can be processed or displayed by the terminal device.

[0096] It should be understood by those skilled in the art that the embodiments of the present application described above and shown in the drawings are only examples and do not limit the present application. The purpose of the present application has been fully and effectively achieved. The function and structural principle of the present application has been demonstrated and explained in the embodiments, and the embodiments of the present application can be modified or changed in any way without departing from the principles.

Claims

1. A tip for a ureteroscope, adapted to be configured to a scope body of a ureteroscope, characterized in that, wherein the ureteroscope tip comprises: a tip portion, wherein the tip portion is configured to be disposed at a front end of the scope body, and the tip portion has a camera end face and a suction end face extending from the camera end face, wherein the tip portion further comprises a suction hole extending through the tip portion from front to back to form a suction opening at the suction end face, and the suction hole of the tip portion is configured to be in communication with a suction channel of the scope body; and an image capturing device, wherein the image capturing device comprises a camera mounted at the camera end face of the tip portion, and an optical axis of the camera extends forwardly and obliquely to be deviated from a central axis of the suction hole, such that the suction opening of the suction hole of the tip portion is within a field of view of the camera. the tip portion further comprises a working hole, wherein the working hole is configured to be in communication with a working channel of the scope body, such that a working component mounted at the working channel extends through the working hole to protrude out of the tip portion to be within the field of view of the camera. a working opening of the working hole of the tip portion faces the suction opening of the suction hole of the tip portion, and the working hole of the tip portion extends forwardly and obliquely inwardly from a rear end face of the tip portion to an inner wall face of the suction hole to form the working opening at the inner wall face of the suction hole for the working component extending through the working hole to protrude forwardly and obliquely out of the suction opening.

2. The ureteroscope tip of claim 1, wherein, a meridional image plane of the camera passes through the suction opening of the suction hole.

3. The ureteroscope tip of claim 2, wherein, the optical axis of the camera intersects the central axis of the suction hole.

4. The ureteroscope tip of claim 1, wherein, the camera end face of the tip portion extends obliquely inwardly relative to the central axis of the suction hole, and the optical axis of the camera is perpendicular to the camera end face.

5. The tip for a ureteroscope according to any one of claims 1 to 4, wherein, the suction end face of the tip portion extends obliquely forwardly from the camera end face.

6. The ureteroscope tip of claim 5, wherein, the suction end face of the tip portion comprises a concave section end face extending arcuately inwardly from the camera end face and a convex section end face extending arcuately outwardly from the concave section end face.

7. The ureteroscope tip of claim 6, wherein, the concave section end face of the suction end face is tangent to the camera end face, and the convex section end face of the suction end face is tangent to the concave section end face of the suction end face.

8. The tip for a ureteroscope according to any one of claims 1 to 4, wherein, the image capturing device further comprises at least one light source, and the light source and the camera are adjacently mounted at the camera end face of the tip portion.

9. A deflected ureteroscope characterized by, comprises: a scope body, wherein the scope body has a suction channel; and the ureteroscope tip of any one of claims 1-8, wherein the ureteroscope tip is configured to be disposed at a scope body of a ureteroscope.

10. The angled ureteroscope of claim 9, wherein, the scope body comprises a scope tube defining the suction channel and at least one working component, wherein the working component is mounted at the scope tube, and the working component mounted at the scope tube protrudes forwardly out of the tip portion to perform a corresponding operation.

11. The angled ureteroscope of claim 10, wherein, the working component is an optical fiber for emitting laser light to perform a lithotripsy operation.

12. The angled ureteroscope of claim 11, wherein, The mirror body further has a working channel for movably mounting the working member, and the tip portion further includes a working hole, wherein the working hole is in communication with the working channel of the mirror body, so that the working member extends out of the tip portion through the working hole.

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