CN219940570U

CN219940570U - Cystoscope

Info

Publication number: CN219940570U
Application number: CN202321363681.9U
Authority: CN
Inventors: 杨瑞; 郑庆源; 倪鑫淼; 杨松; 王艳丹; 陈志远
Original assignee: Wuhan University WHU
Current assignee: Wuhan University WHU
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-11-03
Anticipated expiration: 2033-05-31

Abstract

The utility model discloses a cystoscope, which relates to the field of medical instruments and comprises a main body and an optical fiber tube, wherein the main body can be at least partially inserted into the bladder of a patient, and then an optical fiber is arranged in the optical fiber tube in a penetrating way and enters the bladder of the patient to carry out laser lithotripsy on stone. Specifically, a camera is arranged at one end of the main body; an optical fiber tube is connected to the main body, and one end of the optical fiber tube is aligned with the camera and bent toward the camera, and the optical fiber tube is used for accommodating an optical fiber. By arranging the optical fiber tube and fixing the optical fiber tube on the main body, when the optical fiber is inserted into the optical fiber tube, the position of the optical fiber tube relative to the main body is fixed and cannot move around; the far end part of the optical fiber tube is aligned with the camera of the main body and is bent towards the camera, so that optical fiber lithotripsy is convenient to observe and utilize, and meanwhile, the bladder wall is prevented from being directly irradiated by laser of the optical fiber in the lithotripsy process, and damage to the bladder wall is reduced.

Description

Cystoscope

Technical Field

The utility model relates to the field of medical instruments, in particular to a cystoscope.

Background

Aiming at bladder stones, devices such as a large-force lithotripter, holmium laser lithotripter and the like are generally adopted for lithotripsy and are taken out. For some larger stones, the lithotripter cannot engage it sufficiently, and still relies on holmium laser to strike the stone into small pieces. So that the holmium laser lithotripter under the cystoscope plays an important role in the treatment of the vesical calculus.

In the currently-used cystoscope holmium laser lithotripter, as shown in fig. 1, an optical fiber carrying laser usually runs in a straight line under the cystoscope, and the laser is emitted forward. However, since the space in the bladder is large, stones are easy to roll in the lithotripsy process, and the straight laser is easy to accidentally injure the bladder wall, thereby causing related complications and even bladder perforation.

In the prior art, the mobility of the optical fiber is large, the optical fiber is easy to shake in the stone breaking process, and the accurate positioning of laser is affected, so that the stone breaking efficiency is affected.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a cystoscope so as to solve the problems of low success rate of lithotripsy and damage to bladder wall caused by optical fiber shake in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the present utility model provides a cystoscope, comprising:

a main body, one end of which is provided with a camera;

and an optical fiber tube connected to the main body, wherein one end of the optical fiber tube is aligned with the camera and bent toward the camera, and the optical fiber tube accommodates an optical fiber.

In some alternative embodiments, the end of the fiber optic tube aligned with the camera head is made of an elastomeric material.

In some alternative embodiments, the opening at the aligned end of the fiber optic tube and the camera is radially tapered.

In some alternative embodiments, the body is connected to the fiber optic tube by at least one connector.

In some alternative embodiments, the connector has three connectors for connecting the bent end of the optical fiber tube to the camera, and the length of the connector is longer than the other two connectors.

In some alternative embodiments, the other end of the main body is provided with a camera interface of the camera.

In some alternative embodiments, the camera interface is flared.

In some alternative embodiments, the other end of the fiber tube is bent away from the main body, so as to avoid the camera interface.

In some alternative embodiments, the fiber optic tube is positioned on the other side of the body radially away from the light source interface.

In some alternative embodiments, the inner diameter of the fiber optic tube is sized to fit the outer diameter of the optical fiber.

Compared with the prior art, the utility model has the advantages that: by arranging the optical fiber tube and fixing the optical fiber tube on the main body, when the optical fiber is inserted into the optical fiber tube, the position of the optical fiber tube relative to the main body is fixed and cannot move around; the far end part of the optical fiber tube is aligned with the camera of the main body and is bent towards the camera, so that optical fiber lithotripsy is convenient to observe and utilize, and meanwhile, the bladder wall is prevented from being directly irradiated by laser of the optical fiber in the lithotripsy process, and damage to the bladder wall is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic diagram of a cystoscope according to the present utility model.

In the figure: 1. a main body; 11. a camera; 12. a camera interface; 13. a light source interface; 14. a connection part; 2. an optical fiber tube; 21. a silicone tube; 3. and a connecting piece.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

An embodiment of a cystoscope according to the present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 2, the present utility model provides a cystoscope, which comprises a main body 1 and an optical fiber tube 2, wherein the main body 1 can be at least partially inserted into a bladder of a patient, and then an optical fiber is arranged in the optical fiber tube 2 in a penetrating way, and enters the bladder of the patient to carry out laser stone breaking on stone.

Specifically, a camera 11 is provided at one end of the main body 1; an optical fiber tube 2 is connected to the main body 1, and one end of the optical fiber tube 2 is aligned with the camera 11 and bent toward the camera 11, and the optical fiber tube 2 accommodates an optical fiber.

It will be appreciated that the end of the body 1 provided with the camera 11 is inserted into the patient's bladder, and the fiber optic tube 2 is also introduced into the kidney with the body 1, and the specific location of the stone in the patient's bladder can be observed by the camera 11, with the camera 11 being aimed at the stone. Since one end of the optical fiber tube 2 is aligned with the camera 11 and bent toward the camera 11, the optical fiber may extend along the optical fiber tube 2 to the camera 11 of the body 1. The optical fiber may transmit laser light to the vesical calculus to break the vesical calculus. After the optical fiber is inserted into the optical fiber tube 2, the position of the optical fiber relative to the main body 1 is fixed, the end part of the optical fiber corresponds to the position of the camera 11, so that stones can be conveniently hit, and in the hitting process, the optical fiber is kept fixed in the optical fiber tube 2 and cannot be bent or moved, so that the accuracy of the stones is ensured. On the other hand, the end of the optical fiber tube 2, which is close to the camera 11, is bent towards the camera 11, so that the problem that the laser can directly irradiate the bladder wall to damage the bladder wall in the process of crushing the stone is avoided. The radian of the bending of the optical fiber tube 2 is correspondingly adjusted by medical staff according to the specific use condition, so that the side wall of the optical fiber tube 2 can be adhered to the bladder wall during lithotripsy.

In this example, the camera 11 is set to have an angle with the axis of the main body 1, so that the position of the stone in the kidney can be observed conveniently.

In some alternative embodiments, the end of the fiber optic tube 2 aligned with the camera head 11 is made of an elastic material.

In this example, the end of the optical fiber tube 2 aligned with the camera 11 is made of silica gel, or in other embodiments, a silica gel tube 21 may be disposed in the end of the optical fiber tube 2 near the camera 11.

In any embodiment, the inner diameter of the silica gel tube should be not larger than the outer diameter of the optical fiber, so that the optical fiber is clamped, the optical fiber is ensured not to shift in the process of crushing, and the crushing efficiency is improved.

In some alternative embodiments, the opening at the end of the fiber optic tube 2 aligned with the camera 11 is radially contracted.

It will be appreciated that the opening at the end of the tube 2 aligned with the camera 11 is radially contracted in order to retain the fibre and prevent the fibre end from shaking, so that the contraction of the opening is such that it is exactly in order to retain the fibre. Preferably, the optical fiber tube 2 is aligned with the camera 11 at one end thereof, and the inner diameter thereof in the axial direction is gradually reduced.

In the above embodiment, the end portion is made of elastic material, so that the optical fiber can be inserted into or removed from the optical fiber tube 2 by using the resilience of the elastic material, and the optical fiber tube 2 can be stably clamped at the aligned end portion of the optical fiber tube and the camera 11.

In some alternative embodiments, the body 1 is connected to the fiber optic tube 2 by at least one connector 3.

In order to maintain the relative position between the optical fiber tube 2 and the main body 1 stable, the optical fiber tube 2 is prevented from being displaced during the insertion of the main body 1 into the kidney of a patient, and the optical fiber tube 2 and the main body 1 are connected by the connector 3. It will be appreciated that the length of the fiber optic tube 2 is the same as the length of the body 1, and that the connector 3 is attached to the outer side walls of the fiber optic tube 2 and the body 1.

In this example, three connectors 3 are provided for connecting the bent ends of the optical fiber tubes 2 to the camera 11, and the length of the connectors 3 is longer than the other two connectors 3.

It will be appreciated that the end of the fiber optic tube 2 aligned with the camera 11 is bent toward the camera 11 with a set arc length and curvature. In order to maintain stability between the end of the optical fiber tube 2 aligned with the camera 11 and the main body 1 and to ensure stability of the optical fiber during crushing, the end of the optical fiber tube 2 aligned with the camera 11 is connected to the main body 1 by a connector 3. To adapt the curvature of the aligned end of the fiber optic tube 2 with the camera 11, the length of the connector 3 is greater than the lengths of the other two connectors 3.

Alternatively, three connectors 3 are provided at equal intervals along the length direction of the main body 1.

In some alternative embodiments, the other end of the main body 1 is provided with a camera interface 12 of the camera 11.

Further, the camera interface 12 has a horn shape.

It will be appreciated that the camera interface 12 described above is located on the body 1 and is coupled to a substrate such as a circuit board. For example, one or more wires may extend from the camera interface 12 along the body 1 to the substrate. The camera interface 12 may receive power to power the circuit board. The camera interface 12 may provide a wired connection to the digital video signal via a suitable, optionally multi-core, electrical connector. A substrate, such as a circuit board, may wirelessly communicate digital video signals to a display device located outside of the cystoscope, such as a user device, display, computer monitor, heads-up display, wearable display, virtual reality display, augmented reality display, and so forth.

In some alternative embodiments, the other end of the fiber tube 2 is bent away from the main body 1, so as to avoid the camera interface 12.

Since the optical fiber is inserted from the other end of the optical fiber tube 2 until the optical fiber tube 2 approaches the end of the camera 11, the other end of the optical fiber tube 2 is bent in a direction away from the main body 1 to avoid the camera interface 12 for convenience of operation.

In some alternative embodiments, the fiber optic tube 2 is located on the other side of the body 1 radially away from the light source interface 13.

It will be appreciated that the body 1 is also provided with a number of accessories, such as a light for illuminating the kidney stones when they are observed in the kidney, and a connection 14 for securing the outer sheath during lithotripsy. Therefore, to avoid the light source interface 13, the optical fiber tube 2 is disposed on the other side of the main body 1 radially away from the light source interface 13.

In some alternative embodiments, the inner diameter of the fiber tube 2 is sized to fit the outer diameter of the optical fiber.

In order to avoid bending of the optical fiber in the optical fiber tube 2, it is preferable that the inner diameter of the optical fiber tube 2 is adapted to the outer diameter size of the optical fiber.

The working principle of the embodiment of the utility model is as follows: the device comprises a main body 1, a camera 11, an optical fiber tube 2, a lens 11, a lens tube 2, a silica gel tube 21 and a lens tube 11, wherein the end of the main body 1 provided with the camera 11 is inserted into the kidney of a patient, at the moment, the optical fiber tube 2 enters the kidney along with the main body 1, the specific position of a stone in the kidney of the patient can be observed through the camera 11, the camera 11 is aligned with the stone, an optical fiber is inserted into the optical fiber tube 2, and the optical fiber tube 2 moves until the silica gel tube 21 is positioned, so that the end of the optical fiber is positioned in the shooting range of the camera 11, and then the stone breaking can be started.

According to the cystoscope, the optical fiber tube is arranged and fixed on the main body, so that when the optical fiber is inserted into the optical fiber tube, the position of the optical fiber tube relative to the main body is fixed and cannot move around; the far end part of the optical fiber tube is aligned with the camera of the main body and is bent towards the camera, so that the optical fiber lithotripter is convenient to observe and utilize, meanwhile, laser of the optical fiber is prevented from directly irradiating the bladder wall in the lithotripter process, and damage to the bladder wall is reduced; one end of the optical fiber tube aligned with the camera adopts a silica gel part, and the inner diameter of the silica gel tube is not larger than the outer diameter of the optical fiber, so that the optical fiber is clamped, the optical fiber is prevented from shifting in the process of crushing, and the crushing efficiency is improved; in order to keep the alignment end of the optical fiber tube and the camera stable with the main body and ensure the stability of the optical fiber during stone breaking, the alignment end of the optical fiber tube and the camera is connected with the main body by a connecting piece; in order to avoid bending of the optical fiber in the optical fiber tube, it is preferable that the inner diameter of the optical fiber tube is adapted to the outer diameter dimension of the optical fiber.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the present utility model, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cystoscope, comprising:

a main body (1) having a camera (11) at one end;

an optical fiber tube (2) connected to the main body (1), and one end of the optical fiber tube (2) is aligned with the camera (11) and bent toward the camera (11), the optical fiber tube (2) being for accommodating an optical fiber.

2. Cystoscope according to claim 1, characterized in that the end of the fibre-optic tube (2) aligned with the camera head (11) is made of an elastic material.

3. Cystoscope according to claim 1 or 2, characterized in that the opening at the end of the fibre-optic tube (2) aligned with the camera (11) is radially contracted.

4. Cystoscope according to claim 1, characterized in that the body (1) and the fibre-optic tube (2) are connected by at least one connector (3).

5. Cystoscope according to claim 4, characterized in that the connecting pieces (3) are provided with three connecting pieces (3) for connecting the bent ends of the optical fiber tube (2) to the camera head (11), the length of which is greater than the other two connecting pieces (3).

6. Cystoscope according to claim 1, characterized in that the other end of the body (1) is provided with a camera interface (12) of a camera (11).

7. Cystoscope according to claim 6, characterized in that the camera interface (12) is flared.

8. Cystoscope according to claim 7, characterized in that the other end of the fiber-optic tube (2) is bent away from the body (1) to avoid the camera interface (12).

9. Cystoscope according to claim 1, characterized in that the fibre-optic tube (2) is located on the other side of the body (1) radially away from the light source interface (13).

10. Cystoscope according to claim 1, characterized in that the inner diameter of the fibre-optic tube (2) is adapted to the outer diameter dimension of the fibre-optic.